JP2013153226A - Board transportation method in component mounting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a board transportation method in a component mounting system capable of increasing the productivity of boards by causing a board to wait at an appropriate position according to the length of the board.SOLUTION: A component mounting system includes two neighboring component mounting apparatuses 4 configured to have a component mounting apparatus 4 located at the downstream side having a feeder conveyor 13b and a component mounting apparatus 4 located at the upstream side having a take-out conveyor 13c. A feeding side board detector 17b provided to the component mounting apparatus 4 at the downstream side detects the front end of a board 2 to cause the board 2 to wait at a board waiting position. When a feeding-side board detector 17b provided to the component mounting apparatus 4 at the downstream side detects the front end of a board 2, the component mounting apparatus 4 at the upstream side stops the take-out conveyor 13c of its own from operating to cause the board 2 to wait at the board waiting position.

Description

  The present invention relates to a substrate carrying method in a component mounting system in which a plurality of component mounting apparatuses that perform component mounting related operations on a substrate are connected.

  The component mounting system consists of a solder printer that prints solder on a substrate, a component mounter that mounts components (electronic components) on a substrate printed with solder by a solder printer, and an inspection of a substrate on which components are mounted by a component mounter. And a plurality of component mounting apparatuses such as a reflow furnace for performing a solder reflow process on the board inspected by the inspection machine.

  Each component mounting device constituting the component mounting system is a substrate transfer used for transferring a substrate to and from another component mounting device adjacent to the upstream side or the downstream side, in addition to a positioning conveyor for positioning the substrate at a working position. It has a conveyor. Each component mounting device can position a substrate by a positioning conveyor, and while waiting for the substrate before and after the operation to be performed on the substrate delivery conveyor while performing a required operation on the substrate, the component mounting system The entire substrate can be transported smoothly. In addition, between two adjacent component mounting apparatuses, a pair of board transfer conveyors facing each other can be put on standby in a state where the board is straddled (for example, Patent Document 1).

JP 2009-54619 A

  However, in the conventional component mounting system, adjacent component mounting apparatuses do not grasp the length of each other's board transfer conveyor, so the length (size) of the board to be transferred is determined. Flexible substrate transfer such as waiting the substrate at an appropriate position corresponding to the substrate cannot be performed, which hinders improvement in substrate productivity.

  Accordingly, an object of the present invention is to provide a substrate carrying method in a component mounting system that can improve the productivity of a substrate by waiting the substrate at an appropriate position according to the length of the substrate.

  The substrate transport method in the component mounting system according to claim 1 is formed by connecting a plurality of component mounting devices that perform component mounting related operations on the substrate, and each component mounting device is located upstream or downstream. A carry-in conveyor and a carry-out conveyor as board delivery conveyors used for board delivery between other adjacent component mounting apparatuses, a carry-in board detector that is provided on the carry-in conveyor and detects the leading portion of the board; A substrate carrying method in a component mounting system provided with a carry-out side board detector provided on a carry-out conveyor to detect a leading portion of a board, and for downstream component mounting among two adjacent component mounting devices By the carry-in board detector provided between the carry-in conveyor provided in the apparatus and the carry-out conveyor provided in the upstream component mounting apparatus and provided in the downstream component mounting apparatus When the board is made to stand by at the board standby position where the top part of the board is detected, the upstream part mounting apparatus detects the top part of the board by the carry-in board detector included in the downstream part mounting apparatus. Then, by stopping the operation of the carry-out conveyor of the own machine, the substrate is made to wait at the substrate standby position.

  The board transport method in the component mounting system according to claim 2 is the board transport method in the component mounting system according to claim 1, wherein the component mounting apparatus on the downstream side includes the carry-in board detection included in the own apparatus. When the top of the board is detected by the device, the operation of the carry-in conveyor of the own machine is stopped, and the upstream component mounting apparatus is operated to carry the board by the carry-out conveyor provided in the upstream component mounting apparatus. Outputs a command to stop.

  In the present invention, between the two adjacent component mounting apparatuses, the downstream component mounting apparatus includes a carry-in conveyor provided in the downstream component mounting apparatus and a carry-out conveyor provided in the upstream component mounting apparatus. In the case of waiting at the board standby position where the leading portion of the board is detected by the carry-in board detector provided in the apparatus, the upstream component mounting apparatus uses the carry-in board detector provided in the downstream component mounting apparatus. When the head of the substrate is detected, the operation of the carry-out conveyor of the own machine is stopped, and the substrate is made to wait at the substrate standby position. For this reason, the flexible board | substrate conveyance which makes a board | substrate stand by in the suitable position according to the length (size) of a board | substrate can be performed, and, thereby, productivity of a board | substrate can be improved.

The perspective view of the component mounting system in one embodiment of this invention The top view of the component mounting machine which comprises the component mounting system in one embodiment of this invention The perspective view of the board | substrate conveyance path with which the component mounting machine in one embodiment of this invention and a mounting head are equipped. The block diagram which shows the control system of the component mounting machine in one embodiment of this invention (A) (b) (c) The figure which shows the example of the stand-by position of the board | substrate in one embodiment of this invention (A) (b) The figure which shows the example of the stand-by position of the board | substrate in one embodiment of this invention The figure which shows the example of the stand-by position of the board | substrate in one embodiment of this invention

  Embodiments of the present invention will be described below with reference to the drawings. In a component mounting system 1 according to an embodiment of the present invention shown in FIG. 1, a component mounting machine 4, which is a component mounting device for mounting a component (electronic component) 3 on an electrode 2 a of a substrate 2, transports the substrate 2. A plurality of units are connected in the direction (arrow A shown in FIG. 1). On the upstream side of the plurality of component mounting machines 4 (upstream side of the flow of the substrate 2), a solder printer, which is a component mounting device for performing solder printing on the electrodes 2a of the substrate 2, is usually installed. An inspection machine which is a component mounting apparatus for inspecting the substrate 2 on which the component 3 is mounted on the downstream side of the component mounting machine 4 and a component which performs a solder reflow process on the substrate 2 which has been inspected by the inspection machine A reflow furnace or the like, which is a mounting apparatus, is installed, but in the present embodiment, illustration and description of a component mounting apparatus other than the component mounter 4 are omitted here. Hereinafter, for convenience of explanation, the horizontal plane direction along the conveyance direction of the substrate 2 in each component mounting machine 4 constituting the component mounting system 1 is defined as the X-axis direction, and the horizontal plane direction orthogonal to the X-axis direction is defined as the Y-axis direction. To do. Also, the vertical direction is the Z-axis direction.

  2, each component mounting machine 4 includes a base 12 covered with a cover member 11 (see also FIG. 1), a board transport path 13 provided on the base 12 for transporting and positioning the board 2, and A plurality of tape feeders 14 that are installed on the base 12 and supply parts 3 are moved in the horizontal plane by a robot mechanism 15 provided on the base 12 and positioned by the substrate transport path 13. Two mounting heads 16 for mounting the component 3 picked up from the tape feeder 14 on the substrate 2 are provided.

  The substrate transport path 13 is provided at the center of the base 12 and is adjacent to the upstream or downstream side of the positioning conveyor 13a for positioning the substrate 2 at a predetermined work position (the position shown in FIGS. 2 and 3). A carry-in conveyor 13b and a carry-out conveyor 13c are provided as board delivery conveyors used for delivery of the board 2 to and from other component mounting machines 4. That is, the board conveyance path 13 includes a carry-in conveyor 13b that carries the board 2 sent from the upstream component mounter 4 and delivers it to the positioning conveyor 13a on the upstream side of the positioning conveyor 13a. On the downstream side, there is provided a carry-out conveyor 13c that receives the board 2 sent from the positioning conveyor 13a and carries it out to the component mounting machine 4 on the downstream side.

  In FIG. 2, the robot mechanism 15 includes a beam-shaped Y-axis table 15 a provided to extend in the Y-axis direction so as to straddle the substrate transport path 13 at one end of both ends of the base 12 facing in the X-axis direction. One end is supported by the Y-axis table 15a, extends in the X-axis direction, and is movably provided along the Y-axis table 15a. The two beam-shaped X-axis tables 15b and each X-axis table 15b are moved in the X-axis direction. The two moving stages 15c are provided with a plurality of suction nozzles 16N (FIG. 3) extending downward and vertically and vertically (Z-axis). The mounting heads 16 provided so as to be rotatable are attached one by one.

  In FIG. 2, each of the two moving stages 15 c included in the robot mechanism 15 is provided with a substrate camera 18 (see also FIG. 3) whose imaging field of view is directed downward. A component camera 19 with the imaging field of view facing upward is provided in each of the two regions on the base 12 facing in the direction.

  In FIG. 2, the plurality of tape feeders 14 are provided in the X-axis direction at both ends of the base 12 that face each other in the Y-axis direction across the substrate transport path 13. The component 3 is continuously supplied to the component supply port 14a provided at the end on the side (board conveyance path 13 side).

  The board 2 is transported and positioned by the board transport path 13 (the carry-in conveyor 13b, the positioning conveyor 13a, and the carry-out conveyor 13c). The work execution control unit 30a (FIG. 4) of the control device 30 (FIG. 4) provided in the component mounter 4 is used. Is performed by controlling the operation of the substrate conveyance path drive unit 31 (FIG. 4) including an actuator (not shown). The operation of supplying the component 3 to the component supply port 14a by each tape feeder 14 is executed by the control device 30. This is done by controlling the operation of the tape feeder drive unit 32 (FIG. 4), which includes an actuator or the like (not shown) by the control unit 30a.

  The movement operation of each mounting head 16 in the horizontal plane by the robot mechanism 15 is performed by the operation control (Y-axis table 15a) of the robot mechanism drive unit 33 (FIG. 4) including an actuator (not shown) by the work execution control unit 30a of the control device 30. The movement of each X-axis table 15b in the Y-axis direction and the movement control of each moving stage 15c in the X-axis direction with respect to each X-axis table 15b) are performed to move the suction nozzle 16N up and down with respect to the mounting head 16. The rotation operation about the vertical axis is performed by the operation execution control unit 30a of the control device 30 performing operation control of the nozzle drive unit 34 (FIG. 4) including an actuator (not shown). In addition, the suction and detachment operation of the component 3 by each suction nozzle 16N is performed by the work execution control unit 30a of the control device 30 controlling the operation of the vacuum pressure supply unit 35 (FIG. 4) including an actuator (not shown). This is done by supplying a vacuum pressure inside or releasing the supply of the vacuum pressure.

  The imaging operation by the board camera 18 and the component camera 19 is controlled by the work execution control unit 30a of the control device 30 (FIG. 4). The image data obtained by the imaging operations of the board camera 18 and the component camera 19 is captured and stored in the image data storage unit 36 (FIG. 4), and the image is recognized by the image recognition unit 30b (FIG. 4) provided in the control device 30. The

  2 and 3, the positioning conveyor 13a, the carry-in conveyor 13b, and the carry-out conveyor 13c have a positioning substrate as a board detector for detecting the leading portion in the traveling direction of the board 2 transported by the board transport path 13. A detector 17a, a carry-in side substrate detector 17b, and a carry-out side substrate detector 17c are provided.

  The positioning substrate detector 17a is a positioning conveyor that can change the position at which the substrate 2 is positioned in the positioning conveyor 13a according to the length of the substrate 2 (the conveyance direction of the substrate 2, that is, the length in the X-axis direction). A plurality is provided at a position closer to the exit side of the substrate 2 than the intermediate portion 13a. The carry-in side substrate detector 17b is provided at the end of the carry-in conveyor 13b on the outlet side of the substrate 2, and the carry-out side substrate detector 17c is provided at the end of the carry-out conveyor 13c on the outlet side of the substrate 2. Yes. Each positioning substrate detector 17a, carry-in substrate detector 17b, and carry-out substrate detector 17c are provided in pairs in the Y-axis direction, one of which is a projector that projects the inspection light L, and the other is a projector. The optical receiver is configured to receive the inspection light L. When the leading portion of the substrate 2 being conveyed reaches the inspection light L, the light receiver is switched from the light receiving state of the inspection light L to the non-light receiving state.

  Detection information of the head portion of the substrate 2 output from each positioning substrate detector 17a (information that the light receiver is switched from the light receiving state of the inspection light L to the non-light receiving state), the substrate output from the carry-in side substrate detector 17b The detection information of the top part of 2 and the detection information of the top part of the substrate 2 output from the carry-out side substrate detector 17c are respectively input to the control device 30 (FIG. 4).

  In the component mounting process executed by each component mounting machine 4, the control device 30 first controls the operation of the carry-in conveyor 13 b and the positioning conveyor 13 a that constitute the substrate transport path 13, and the other component mounting machine 4 positioned on the upstream side. The substrate 2 supplied from is carried in and positioned at a predetermined work position. Here, the positioning of the substrate 2 is performed by using one positioning substrate detector 17a selected according to the length of the substrate 2 among the plurality of positioning substrate detectors 17a provided on the positioning conveyor 13a. When the part is detected, the work execution control unit 30a stops the operation of the positioning conveyor 13a.

  After positioning the substrate 2, the control device 30 controls the operation of the robot mechanism drive unit 33 to move the substrate camera 18 (the mounting head 16) above the substrate 2, and the substrate mark provided on the substrate 2. Imaging (not shown) is performed. Then, the obtained image of the substrate mark is image-recognized by the image recognition unit 30b, and the positional deviation of the substrate 2 from the normal work position is obtained.

  When the controller 30 determines the positional deviation of the substrate 2, the controller 30 moves the mounting head 16 above the tape feeder 14, and picks up the component 3 supplied to the component supply port 14a of the tape feeder 14 by vacuum suction by the suction nozzle 16N. To do. Then, the mounting head 16 is moved so that the picked-up component 3 passes above the component camera 19, the component 3 is imaged by the component camera 19, and image recognition is performed, and abnormality (deformation, defect, etc.) of the component 3 is detected. The presence / absence check is performed, and the positional deviation (suction deviation) of the component 3 relative to the suction nozzle 16N is obtained.

  After recognizing the image of the component 3, the control device 30 moves the mounting head 16 above the substrate 2, and the component 3 picked up by the suction nozzle 16N is the electrode 2a (on the electrode 2a) on the substrate 2 as the target mounting position And the component 3 is mounted on the substrate 2 by releasing the supply of the vacuum pressure to the suction nozzle 16N. At this time, the control device 30 corrects the position of the suction nozzle 16N with respect to the board 2 so that the positional deviation of the board 2 obtained when positioning the board 2 and the suction deviation of the part 3 obtained when recognizing the image of the part 3 are corrected. (Including rotation correction).

  When the mounting of the component 3 to be mounted on the board 2 is completed, the control device 30 operates the positioning conveyor 13a and the unloading conveyor 13c in an interlocked manner, and unloads them to the component mounting machine 4 on the downstream side.

  In the component mounting system 1 according to the present embodiment, between a pair of adjacent component mounting machines 4, a pair of board transfer conveyors facing each other, that is, a component mounting machine 4 (upstream) positioned relatively upstream. When the board 2 is transferred between the carry-out conveyor 13c provided in the component mounting machine 4) on the side and the component mounting machine 4 (downstream component mounting machine 4) positioned relatively downstream, the transfer target is to be conveyed. Since the board | substrate 2 which can be made to stand by in the suitable position according to the length can be demonstrated below.

  In FIG. 4, a length data storage unit 37 is connected to the control device 30 included in each component mounting machine 4 constituting the component mounting system 1. The length data storage unit 37 includes a carry-in conveyor included in the own device. Data on the length of 13b and data on the length of the carry-out conveyor 13c (both in the conveyance direction of the substrate 2) are stored.

  In FIG. 4, the control device 30 is connected to the communication unit 38. The communication unit 38 is connected to the communication unit 38 included in the other component mounting machine 4 adjacent to the upstream side and the communication unit 38 included in the other component mounting machine 4 adjacent to the downstream side. Is capable of communicating (data exchange) with the control device 30 provided in another component mounting machine 4 adjacent to the upstream side and the downstream side.

  When the control device 30 of each component mounter 4 transports the board 2 to or from another component mounter 4 adjacent to the upstream side or the downstream side, first, via the communication unit 38, the upstream side or A pair of board transfer conveyors (the carry-out conveyor 13c provided in the upstream component mounter 4 and the carry-in conveyor provided in the downstream component mounter 4) that face each other between the component mounter 4 adjacent to the downstream side. 13b) The data of each length and the data of the length of the board | substrate 2 used as conveyance object are transmitted / received (data transmission / reception process).

  That is, the control device 30 of each component mounter 4 transmits data on the length of the carry-in conveyor 13b included in the own device to the upstream component mounter 4, while the upstream component mounter 4 Receives the data of the length of the carry-out conveyor 13c provided in the upstream component mounting machine 4, and stores it in the length data storage unit 37. In addition, data on the length of the carry-out conveyor 13c included in the own machine is transmitted to the downstream component mounter 4, while the downstream component mounter 4 receives the downstream component mounter 4 from the downstream component mounter 4. Data on the length of the carry-in conveyor 13 b provided is received and stored in the length data storage unit 37.

  As a result, the length data storage unit 37 stores the length data of the own machine and the board delivery conveyors (the carry-in conveyor 13b and the carry-out conveyor 13c) of the adjacent component mounting machine 4 and the board 2 to be transferred. Length data (hereinafter, these data are collectively referred to as “length data”) is stored in the length data storage unit 37 (data storage step).

  Note that the length data of the substrate 2 to be transported does not necessarily have to be transmitted via the communication unit 38, and may be directly input to the length data storage unit 37 by the operator.

  When the length data is stored in the length data storage unit 37, the standby position selection unit 30c (FIG. 4) of the control device 30 is based on the length data stored in the length data storage unit 37. In addition, a board transfer region (FIG. 5) formed by a pair of board transfer conveyors (load-in conveyor 13b and carry-out conveyor 13c) facing each other between the upstream and downstream component mounting machines 4 adjacent to each other. 6 and 7, the standby position of the substrate 2 in R) is selected from a plurality of predetermined candidates (standby position selection step).

  Here, the candidate for the standby position of the substrate 2 is detected at the head of the substrate 2 by either the carry-in substrate detector 17b provided on the carry-in conveyor 13b or the carry-out substrate detector 17c provided on the carry-out conveyor 13c. Position. In the present embodiment, the first board standby position where the leading portion of the board 2 is detected by the carry-out board detector 17c included in the upstream component mounting machine 4 between the two adjacent component mounting machines 4. And the second board standby position where the leading portion of the board 2 is detected by the carry-in board detector 17b included in the component mounting machine 4 on the downstream side is set as a candidate for the standby position of the board 2. it can. Whether two of the two board standby positions (the first board standby position and the second board standby position) can be used as candidates for the standby position is determined by whether two adjacent component mounters are used. 4, the length of the carry-out conveyor 13 c included in the upstream component mounter 4, the length of the carry-in conveyor 13 b included in the downstream component mounter 4, and the length of the substrate 2 to be transported. It depends on.

  For example, as shown in FIGS. 5, 6, and 7, out of two adjacent component mounters 4, the upstream component mounter 4 (the component located on the left side of the page in FIGS. 5, 6, and 7). The length Sc of the carry-out conveyor 13c provided in the mounting machine 4) is the length of the carry-in conveyor 13b provided in the component mounting machine 4 on the downstream side (the component mounting machine 4 located on the right side in FIG. 5, FIG. 6 and FIG. 7). When the length is larger than Sb, the first case where the length W of the substrate 2 is smaller than Sb (when W <Sb <Sc), the length W of the substrate 2 is larger than Sb, and is larger than Sc. In a small second case (when Sb <W <Sc), the first substrate standby position (FIGS. 5A and 6A) and the second substrate standby position (FIGS. 5B and 5B) 6B is a candidate for the standby position of the substrate 2, but the length W of the substrate 2 is larger than Sc. In There third case (when Sb <Sc <W), a second substrate standby position only (FIG. 7) are candidates of the standby position of the substrate 2.

  Here, in a state where the board 2 is stopped at the second board standby position in the first case, the board 2 is accommodated in the carry-in conveyor 13b included in the downstream component mounting machine 4 and the upstream component mounting machine 4 is placed. Since it does not straddle the carry-out conveyor 13c included in the board, the board 2 can be put on standby also in the carry-out conveyor 13c provided in the component mounting machine 4 located on the upstream side (that is, also in the first board standby position). (FIG. 5C).

  On the other hand, in the state where the substrate 2 is stopped at the second substrate standby position in the second case and in the state where the substrate 2 is stopped at the second substrate standby position in the third case, the substrate 2 is a downstream component. Unlike the first case, the component mounter located upstream is not included in the carry-in conveyor 13b included in the mounter 4 and straddles the carry-out conveyor 13c included in the upstream component mounter 4. The board | substrate 2 cannot be made to wait on the carrying-out conveyor 13c with which 4 is equipped.

  As described above, in the component mounting system 1 according to the present embodiment, each component mounter 4 is paired with a pair of board transfer conveyors (the carry-in conveyor 13b and the carry-in conveyor 13b) that face each other with the other adjacent component mounters 4. The length data of the carry-out conveyor 13c) and the length data of the board to be transported are provided by communication and shared, and based on the shared data, the other adjacent component mounting machines 4 Selecting a standby position of the substrate 2 from a plurality of predetermined candidates in the substrate transport region R formed by a pair of substrate transfer conveyors (the carry-in conveyor 13b and the carry-out conveyor 13c) opposed to each other. Can be done.

  When the above-described standby position selection process is completed, the control device 30 of each component mounter 4 has a board transfer conveyor (upstream side) provided in its own apparatus so that the board 2 stops at the standby position selected in the standby position selection process. In the case of the component mounting machine 4, the carry-out conveyor 13 c is operated, and in the case of the component mounting machine 4 on the downstream side, the carry-in conveyor 13 b) is operated to transfer the board 2 (board transfer process).

  Here, in the first case, when the standby position selection unit 30c of the control device 30 of each component mounter 4 selects the first board standby position as the standby position of the board 2, the upstream component The board stop determination unit 30d of the control device 30 provided in the mounting machine 4 issues a command to stop the transport operation of the board 2 by the carry-out conveyor 13c when the leading-edge part of the board 2 is detected by the carry-out board detector 17c. The work execution control unit 30a of the control device 30 of the upstream component mounting machine 4 that has received the command is the unloading conveyor 13c provided in the own machine (upstream component mounting machine 4). The operation of is stopped. As a result, the substrate 2 stops at the first substrate standby position (FIG. 5A).

  On the other hand, in the first case, when the standby position selection unit 30c of the control device 30 of each component mounting machine 4 selects the second board standby position as the standby position of the board 2, the upstream component mounting machine The substrate stop determination unit 30d of the control device 30 of FIG. 4 ignores the detection signal of the substrate 2 even when the leading portion of the substrate 2 is detected by the carry-out side substrate detector 17c included in the own device. The board stop determining unit 30d of the control device 30 of the component mounting machine 4 on the downstream side performs the transport operation of the board 2 by the carry-in conveyor 13b when the leading part of the board 2 is detected by the carry-in board detector 17b included in the own apparatus. Is output to the work execution control unit 30a of the control device 30 of the own machine, and the work execution control unit 30a of the control device 30 of the component mounting machine 4 on the downstream side receiving the command receives the command (downstream side). Equipped with 4 parts mounting machine It stops the operation of that input conveyor 13b. As a result, the substrate 2 stops at the second substrate standby position (FIG. 5B).

  In the second case, when the standby position selection unit 30c of the control device 30 of each component mounting machine 4 selects the first board standby position as the standby position of the board 2, the upstream component mounting machine 4 The substrate stop determining unit 30d of the control device 30 includes a command to stop the transport operation of the substrate 2 by the unloading conveyor 13c when the leading end of the substrate 2 is detected by the unloading side substrate detector 17c. The work execution control unit 30a of the control device 30 of the upstream component mounter 4 that has received the command to the unit 30a stops the operation of the carry-out conveyor 13c included in the own device (upstream component mounter 4). Let As a result, the substrate 2 stops at the first substrate standby position (FIG. 6A).

  On the other hand, in the second case, when the standby position selection unit 30c of the control device 30 of each component mounting machine 4 selects the second board standby position as the standby position of the board 2, the upstream component mounting machine The substrate stop determination unit 30d of the control device 30 of FIG. 4 ignores the detection signal of the substrate 2 even when the leading portion of the substrate 2 is detected by the carry-out side substrate detector 17c included in the own device. The board stop determining unit 30d of the control device 30 of the component mounting machine 4 on the downstream side performs the transport operation of the board 2 by the carry-in conveyor 13b when the leading part of the board 2 is detected by the carry-in board detector 17b included in the own apparatus. Is output to the work execution control unit 30a of the control device 30 of the own machine, and the instruction to stop the conveying operation of the board 2 by the carry-out conveyor 13c provided in the upstream component mounting machine 4 is controlled on the upstream side. And it outputs the work execution control unit 30a of the location 30. Then, the work execution control unit 30a of the control device 30 included in the downstream component mounter 4 that has received the command stops the operation of the carry-in conveyor 13b of the own device (downstream component mounter 4), and the upstream side The work execution control unit 30a of the control device 30 provided in the component mounter 4 stops the operation of the carry-out conveyor 13c of the own device (upstream component mounter 4). As a result, the substrate 2 stops at the second substrate standby position (FIG. 6B).

  In the third case, when the standby position selection unit 30c of the control device 30 of each component mounting machine 4 selects the second board standby position as the standby position of the board 2, the upstream side of the component mounting machine 4 The substrate stop determination unit 30d of the control device 30 ignores the detection signal of the substrate 2 even when the leading portion of the substrate 2 is detected by the carry-out side substrate detector 17c included in the own device, but the downstream side The board stop judging unit 30d of the control device 30 of the component mounting machine 4 stops the transport operation of the board 2 by the carry-in conveyor 13b when the leading-side board detector 17b provided in the machine itself detects the leading part of the board 2. A command to stop the conveyance operation of the board 2 by the carry-out conveyor 13c provided in the upstream component mounter 4 is output to the work execution control unit 30a of the control device 30 of the own device. And outputs of the work execution controller 30a. Then, the work execution control unit 30a of the control device 30 included in the downstream component mounter 4 that has received the command stops the operation of the carry-in conveyor 13b of the own device (downstream component mounter 4), and the upstream side The work execution control unit 30a of the control device 30 provided in the component mounter 4 stops the operation of the carry-out conveyor 13c of the own device (upstream component mounter 4). As a result, the substrate 2 stops at the second substrate standby position (FIG. 7).

  As described above, the substrate carrying method according to the present embodiment is formed by connecting a plurality of component mounters 4, and each component mounter 4 is another component mounter 4 adjacent to the upstream side or the downstream side. A carry-in conveyer 13b and a carry-out conveyer 13c as substrate transfer conveyers used for delivering the substrate 2 to and from the carry-in conveyer 13b, and a carry-in substrate detector 17b and a carry-out conveyer that are provided on the carry-in conveyer 13b and detect the leading portion of the substrate 2. 13c is a substrate carrying method in the component mounting system 1 provided with a carry-out side substrate detector 17c that detects a leading portion of the substrate 2, and the component mounting on the downstream side of the two adjacent component mounting machines 4 Crossing between the carry-in conveyor 13b provided in the machine 4 and the carry-out conveyor 13c provided in the upstream component mounting machine 4 and the carry-in board detector 17b provided in the downstream component mounting machine 4 Thus, when the board 2 is made to stand by at the board standby position where the head portion of the board 2 is detected, the upstream component mounting machine 4 is connected to the board 2 by the carry-in board detector 17b included in the downstream component mounting machine 4. When the leading portion is detected, the operation of the carry-out conveyor 13c of the own machine is stopped, so that the substrate 2 is put on standby at the substrate standby position.

  In the substrate carrying method in the present embodiment, between the two adjacent component mounters 4, between the carry-in conveyor 13 b provided in the downstream component mounter 4 and the carry-out conveyor 13 c provided in the upstream component mounter 4. In the case where the downstream side component mounting machine 4 is put on standby at a board standby position where the leading portion of the board 2 is detected by the carry-in side board detector 17b included in the downstream side component mounting machine 4, the upstream side component mounting machine 4 When the leading portion of the substrate 2 is detected by the carry-in side substrate detector 17b included in 4, the operation of the carry-out conveyor 13 c of the own machine is stopped, thereby causing the substrate 2 to stand by at the substrate standby position. For this reason, the flexible board | substrate 2 which makes the board | substrate 2 stand by in the suitable position according to the length (size) of the board | substrate 2 can be conveyed, and, thereby, the productivity of the board | substrate 2 can be improved.

  Although the embodiment of the present invention has been described so far, the present invention is not limited to the above. For example, in the above-described embodiment, only the conveyance of the substrate 2 between the component mounting machines 4 has been described. However, a component mounting apparatus other than the component mounting machine 4 (for example, the above-described solder printer, inspection machine, reflow furnace) And the like, the component mounting apparatus is a component mounting apparatus that performs a component mounting related operation on the substrate 2, and the substrate 2 is connected to another component mounting apparatus adjacent to the upstream side or the downstream side. If a board delivery conveyor used for delivery is provided, the same substrate 2 can be transported between two adjacent component mounting apparatuses including the component mounting apparatus.

  Provided is a board transfer method in a component mounting system that can improve the productivity of a board by waiting the board at an appropriate position according to the length of the board.

1 Component mounting system 2 Board 4 Component mounting machine (component mounting device)
13b Carry-in conveyor 13c Carry-out conveyor 17b Carry-in side board detector 17c Carry-out side board detector

Claims (2)

A plurality of component mounting devices that perform component mounting-related work on a board are connected to each other, and each component mounting device delivers a substrate to another component mounting device adjacent to the upstream side or the downstream side. Loading and unloading conveyors as substrate transfer conveyors used for the purpose, loading side board detectors that are provided on the loading conveyors to detect the leading edge of the substrates, and unloading sides that are provided on the unloading conveyor to detect the leading edge of the substrates A board conveying method in a component mounting system comprising a board detector,
Among the two adjacent component mounting apparatuses, the downstream component mounting apparatus includes the carry-in conveyor provided in the downstream component mounting apparatus and the carry-out conveyor provided in the upstream component mounting apparatus. When the board is made to stand by at the board standby position where the leading part of the board is detected by the carry-in board detector, the upstream component mounting apparatus is controlled by the carry-in board detector included in the downstream component mounting apparatus. When the leading portion of the board is detected, the operation of the carry-out conveyor of the own machine is stopped to place the board on standby at the board standby position.   The component mounting apparatus on the downstream side stops the operation of the carry-in conveyor of the own machine when the leading portion of the board is detected by the carry-in board detector included in the own machine, and the upstream component mounting apparatus. The board conveying method in the component mounting system according to claim 1, wherein a command to stop the board carrying operation by the carry-out conveyor provided in the upstream component mounting apparatus is output.

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