Production System

Abstract

The production system comprises a first production line and a second production line arranged in parallel with each other, and a first feeder replacement device and a second feeder replacement device respectively provided in each production line at intervals that allow the first feeder replacement device and the second feeder replacement device to pass through each other. When production is stopped, the first feeder replacement device and the second feeder replacement device stop at intervals that are greater than a predetermined distance from each other in a substrate conveying direction.

Description

Technical Field

[0001] This specification discloses a production system. Background Art

[0002] In the past, the following production system is known (for example, refer to patent document 1), which includes: a plurality of component mounting machines, which are neatly arranged along the conveying direction of the substrate and mount the components supplied from the feeder on the substrate; and a loader, which moves along the conveying direction of the substrate and supplies the required feeders to each component mounting machine or recovers the used feeders. The loader is equipped with a monitoring sensor that monitors the presence of obstacles (operators). When the monitoring sensor does not detect an obstacle, the loader moves toward the working position, and stops if the monitoring sensor detects an obstacle. Then, if the monitoring sensor detects an obstacle during the stop, the loader starts to move again.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: International Publication No. 2019 / 016924 Summary of the invention

[0006] Problems to be solved by the invention

[0007] However, in the production system, there is a system with multiple production lines arranged in parallel and multiple loaders (feeder replacement devices) respectively provided on each production line. In this production system, in order to achieve space saving, it is considered to ensure that the intervals between the loaders can be staggered and passed between adjacent production lines while reducing the intervals between the multiple production lines. However, in such a production system, when production is stopped, there is a situation where the loaders between adjacent production lines stop at positions where they overlap in the substrate conveying direction. In this case, the operator's forward route is blocked by the loader and cannot pass between the production lines.

[0008] The main purpose of the present invention is to provide a production system, comprising a first production line and a second production line arranged in parallel with each other and a first feeder replacement device and a second feeder replacement device respectively provided on each production line at intervals to allow people to pass through the production line, so that even if the intervals between the production lines are shortened, space for people to pass through can be ensured between the production lines when production is stopped.

[0009] Technical solutions to solve problems

[0010] In order to achieve the above-mentioned main object, the present disclosure adopts the following means.

[0011] The production system disclosed in the present invention comprises: a first production line, including a plurality of component mounting machines, the plurality of component mounting machines are neatly arranged along a substrate conveying direction and are provided with a loading and unloading section for a feeder to load and unload, and components supplied from a feeder assembled on the loading and unloading section are mounted on the substrate; and a second production line, including a plurality of component mounting machines, the plurality of component mounting machines are neatly arranged in parallel with the first production line and are provided with a loading and unloading section in a manner opposite to the loading and unloading section of the first production line, and components supplied from the feeder assembled on the loading and unloading section are mounted on the substrate. The main point is that the production system comprises: a first feeder replacement device, The first feeder replacement device moves in the direction of neat arrangement of the component mounting machines of the first production line, and loads and unloads the feeders relative to the loading and unloading parts of the component mounting machines of the first production line, thereby replacing the feeders; and a second feeder replacement device moves in the direction of neat arrangement of the component mounting machines of the second production line at a gap that can be staggered with the first feeder replacement device, and loads and unloads the feeders relative to the loading and unloading parts of the component mounting machines of the second production line, thereby replacing the feeders. When production is stopped, the first feeder replacement device and the second feeder replacement device stop at a gap greater than a predetermined distance from each other in the substrate conveying direction.

[0012] The production system disclosed in the present invention comprises a first production line and a second production line arranged in parallel with each other, and a first feeder replacement device and a second feeder replacement device respectively provided on each production line at intervals that allow for staggered passage. When production is stopped, the first feeder replacement device and the second feeder replacement device stop at intervals that are greater than a predetermined distance from each other in the substrate conveying direction (the extension direction of the production line). Thus, even if the intervals between the production lines are reduced, it is possible to achieve a production system that can ensure space for people to pass through between the production lines when production is stopped. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the production system according to the first embodiment.

[0014] Figure 2 This is a schematic diagram of the production line.

[0015] Figure 3 This is a schematic diagram of the component mounting machine.

[0016] Figure 4 Schematic diagram of the feeder structure.

[0017] Figure 5 This is a three-dimensional view of the feeder table.

[0018] Figure 6 This is a schematic diagram of the loader.

[0019] Figure 7This is a block diagram showing the electrical connections of the production system.

[0020] Fig. 8A It is an explanatory diagram showing the detection area of ​​the monitoring sensor.

[0021] Figure 8B It is an explanatory diagram showing the state of detection of a human body by a monitoring sensor.

[0022] Fig. 9 This is a flowchart showing an example of a production process.

[0023] Fig.10 This is an explanatory diagram showing a situation where two loaders on the first production line and the second production line block a passage.

[0024] Fig.11 This is an explanatory diagram showing an example of the stop position where each loader of the first line and the second line stops when a predetermined number of productions are completed.

[0025] Fig.12 This is an explanatory diagram showing the stop positions at which the loaders of the first and second lines stop when an abnormality occurs in any one of the component mounting machines in the production system.

[0026] Fig.13 This is an explanatory diagram showing an example of the stop position where each loader of the first line and the second line stops when the AGV enters.

[0027] Fig.14 : is a flowchart showing the production process of a modification example.

[0028] Fig.15 It is a schematic structural diagram of a production system according to a second embodiment.

[0029] Fig.16 1 is a flowchart showing the production process of the second embodiment.

[0030] Fig.17 It is a schematic structural diagram of a production system according to a third embodiment.

[0031] Fig.18 : is a flowchart showing the production process of the third embodiment. DETAILED DESCRIPTION

[0032] Next, a mode for carrying out the present disclosure will be described with reference to the drawings.

[0033] Figure 1 It is a schematic structural diagram of the production system according to the first embodiment. Figure 2 This is a schematic diagram of the production line. Figure 3 This is a schematic diagram of the component mounting machine. Figure 4This is a schematic diagram of the feeder structure. Figure 5 This is a three-dimensional view of the feeder table. Figure 6 This is a schematic diagram of the loader. Figure 7 is a block diagram showing the electrical connection relationship of the production system. Figure 2 , Figure 3 In the diagram, the left-right direction is set as the X-axis direction, the front-back direction is set as the Y-axis direction, and the up-down direction is set as the Z-axis direction.

[0034] As shown in the figure, the production system 1 of the first embodiment has a plurality of production lines 10 (a first production line 10A, a second production line 10B) arranged in parallel with each other, loaders 50 (a first loader 50A, a second loader 50B) respectively arranged on each production line 10, AGV70 and a management device 80 for managing the entire system. In the first embodiment, both ends of the first production line 10A and the second production line 10B are open. Between the production lines between the first production line 10A and the second production line 10B, people (operators) and AGV70 can freely travel.

[0035] Each production line 10 produces a product in which components are mounted on a substrate S printed with solder. Figure 2 As shown, each production line 10 is equipped with a printing device 12, a printing inspection device 14, a plurality of component mounting machines 20, an installation inspection device (not shown) and a feeder storage 60. These are arranged in a straight line in the conveying direction of the substrate S to form the production line 10. The printing device 12 is a device for printing solder on the substrate S. The printing inspection device 14 is a device for inspecting the state of the solder printed by the printing device 12. The plurality of component mounting machines 20 are devices for taking out components supplied from the feeder 30 mounted on the feeder table 40 and mounting them on the substrate S. The installation inspection device is a device for inspecting the installation state of the components mounted by the component mounting machine 20. The feeder storage 60 is assembled in the production line 10, and stores the feeders 30 to be used and the feeders 30 that have been used in each component mounting machine 20.

[0036] like Figure 3 As shown, the component mounting machine 20 includes a mounting machine body 21 and a feeder 30 that is attachable to and detachable from a feeder stage 40 provided on the mounting machine body 21 .

[0037] The mounting machine body 21 includes: a substrate transport device 22 for transporting the substrate S; a mounting head 25 fixed (mounted) to the slide 24, and taking out the components supplied to the component supply position by the feeder 30 and mounting them on the substrate S; a head moving device 23 for moving the mounting head 25 along the front-rear direction and the left-right direction (XY direction) together with the slide 24; and a mounting control device 29 (refer to Figure 7). The substrate transport device 22, the head moving device 23 and the mounting head 25 are arranged in a housing 21a provided on a base 21b. The mounting head 25 comprises: a suction nozzle 25a, a suction element; and a lifting device (not shown) which lifts and lowers the suction nozzle 25a by a ball screw mechanism, a linear motor or the like.

[0038] The mounting machine body 21 is further provided with a mark camera 26, a parts camera 28, etc. The mark camera 26 photographs the reference mark added to the substrate S from above in order to detect the position of the substrate S. The parts camera 28 photographs the component adsorbed to the suction nozzle 25a from below in order to detect adsorption errors and adsorption deviations.

[0039] The mounting control device 29 is composed of a well-known CPU, ROM, RAM, etc. The mounting control device 29 inputs image signals from the marking camera 26 and the parts camera 28. In addition, the mounting control device 29 outputs drive signals to the substrate conveying device 22, the mounting head 25, the head moving device 23, etc.

[0040] like Figure 4 As shown, the feeder 30 is a rectangular cassette-type tape feeder, and is held in a detachable manner on a feeder table 40 provided on the front surface of the housing 21a of the mounting machine body 21. The feeder 30 includes a tape reel 32, a tape conveying mechanism 33, a connector 35, a rail member 37, and a supply control device 39 (see Figure 7 ). The tape 31 is wound around the reel 32. Cavities are formed on the tape 31 at predetermined intervals along the length direction thereof. Components are accommodated in each cavity. These components are protected by a film covering the surface of the tape 31. The tape conveying mechanism 33 pulls out the tape 31 from the reel 32 and delivers it toward the component supply position. Although not shown in the figure, the tape conveying mechanism 33 includes: a tape guide gear, which is provided with an engaging claw on the outer periphery that engages with the tape guide gear provided at equal intervals on the tape 31; and a feed motor that drives the tape guide gear to rotate. The feeder 30 drives the tape guide gear by the feed motor in units of a predetermined rotation amount, and delivers the tape 31 engaged with the tape guide gear in units of a predetermined amount, thereby sequentially supplying the components accommodated in the tape 31 toward the component supply position. The components accommodated in the tape 31 are exposed at the component supply position by peeling off the film near the component supply position, and are sucked by the suction nozzle 25a. Two positioning pins 34 protruding in the installation direction are provided on both sides of the connector 35. The rail member 37 is provided at the lower end of the feeder 30 and extends in the installation direction. The supply control device 39 is composed of a well-known CPU, ROM, RAM, etc., and outputs a drive signal to the belt conveying mechanism 33 (feed motor). In addition, the supply control device 39 can communicate with the control unit (installation control device 29, management device 80, etc.) of the installation destination of the feeder 30 via the connector 35.

[0041] A plurality of feeders 30 are installed on the feeder table 40 in a manner arranged in the X-axis direction. Figure 5 As shown, the feeder table 40 is an L-shaped table in a side view, and is provided with a slot 42, two positioning holes 44, and a connector 45. The rail member 37 of the feeder 30 is inserted into the slot 42. The two positioning pins 34 of the feeder 30 are inserted into the two positioning holes 44, so that the feeder 30 is positioned on the feeder table 40. The connector 45 is provided between the two positioning holes 44 and connected to the connector 35 of the feeder 30.

[0042] The component mounting machines 20 of the first production line 10A and the second production line 10B are arranged so that the feeder tables 40 of the component mounting machines 20 face each other in the first production line 10A and the second production line 10B. Figure 1 As shown, the first loader 50A arranged at the first production line 10A and the second loader 50B arranged at the second production line 10B move along the production line at a distance d that allows them to pass through each other. By minimizing the distance d, the production system 1 including the first production line 10A and the second production line 10B can be compactly placed in the factory.

[0043] like Figure 2 As shown, the loaders 50 (first loader 50A, second loader 50B) are supported by guide rails 16 provided in parallel with the conveying direction (X-axis direction) of the substrates on the front surfaces of the plurality of component mounting machines 20 and the front surface of the feeder storage 60. The loaders 50 are supported by the guide rails 16 in a state of floating from the floor F of the factory where the production system 1 is installed. The loaders 50 replenish the required feeders 30 to each component mounting machine 20 or collect the used feeders 30 from each component mounting machine 20 by moving along the corresponding production line 10 (guide rails 16).

[0044] like Figure 6 As shown, the loader 50 includes a loader moving device 51, a feeder transfer device 53, a position sensor 57, a monitoring sensor 58, and a loader control device 59 (see Figure 7 ). The loader moving device 51 moves the loader 50 along the guide rail 16. The loader moving device 51 includes: a motor 52a that drives a driving belt for moving the loader 50; and a guide roller 52b that rolls on the guide rail 16. The feeder transfer device 53 transfers the feeder 30 between the loader 50 and the component mounting machine 20 and the feeder storage 60. The feeder transfer device 53 includes: a clamping mechanism 54 that clamps the feeder 30; and a clamping moving device 55 that reciprocates the clamping mechanism 54 along the Y-axis direction (front and back direction). The position sensor 57 is an encoder that detects the moving position of the loader 50 in the left and right direction (X-axis direction).

[0045] In this embodiment, the monitoring sensor 58 is configured as a laser scanner having a light projecting unit 58a and a light receiving unit 58b as a sensor unit. The monitoring sensor 58 detects obstacles by irradiating laser light from the light projecting unit 58a and receiving reflected light from obstacles at the light receiving unit 58b.

[0046] The monitoring sensor 58 is used to monitor the predetermined range ( Figure 1 and Figure 2 The monitoring sensor 58 is provided at both ends in the conveying direction of the substrate S in a manner as a detection area, such as the range painted in gray in the figure. In addition, the monitoring sensor 58 is provided at the lower part of the loader 50 in a manner such that the optical axes of the light-emitting portion 58a and the light-receiving portion 58b are directed obliquely downward. Thus, the monitoring sensor 58 uses the area from the ground F to a predetermined height as a detection area, and can mainly detect the feet of people (operators) as obstacles. As described above, the loader 50 is supported on the guide rail 16 in a state of floating from the ground F. Therefore, the monitoring sensor 58 detects people (under the feet) around the loader 50 on which the monitoring sensor 58 is provided (refer to Fig. 8A ), on the other hand, when the own loader 50 and the other loader 50 pass by each other, the other loader 50 is not detected (refer to Figure 8B ). That is, the monitoring sensor 58 of the first loader 50A will not detect the second loader 50B as an obstacle when the first loader 50A and the second loader 50B pass each other. Similarly, the monitoring sensor 58 of the second loader 50B will not detect the first loader 50A as an obstacle when the second loader 50B and the first loader 50A pass each other.

[0047] The loader control device 59 is composed of a well-known CPU, ROM, RAM, etc., and inputs detection signals from the position sensor 57 and the monitoring sensor 58, and outputs drive signals to the loader moving device 51 and the feeder transfer device 53. When replacing the feeder 30, the loader control device 59 controls the loader moving device 51 so that the loader 50 moves to a position relative to the component mounting machine 20 holding the feeder 30 to be replaced as a target position. When the loader 50 reaches the target position, the loader control device 59 controls the feeder transfer device 53 so that the used feeder 30 mounted on the feeder table 40 of the component mounting machine 20 is clamped by the clamping mechanism 54, and the used feeder 30 is pulled forward and recovered into the loader 50. Then, the loader control device 59 controls the feeder transfer device 53 so that the new feeder 30 in the loader 50 is clamped by the clamping mechanism 54, and the feeder 30 is sent to the rear to be mounted on the feeder table 40 of the component mounting machine 20.

[0048] If an obstacle is detected by the monitoring sensor 58 during the travel of the loader 50, the loader control device 59 controls the loader moving device 51 to stop the travel until the obstacle is no longer detected. As described above, when the own loader 50 provided with the monitoring sensor 58 passes by the other loader 50, the monitoring sensor 58 will not detect the other loader 50, so the travel will not be hindered by the other loader 50.

[0049] In the feeder storage 60, in order to accommodate a plurality of feeders 30, a feeder table 40 having the same structure as the feeder table 40 provided in the component mounting machine 20 is provided at the same height as the feeder table 40 of the component mounting machine 20. Therefore, the loader 50 can load and unload the feeder 30 with respect to the feeder table 40 of the feeder storage 60 at a position opposite to the feeder storage 60 by the same action as loading and unloading the feeder 30 with respect to the feeder table 40 of the component mounting machine 20.

[0050] The AGV 70 moves between the feeder storages 60 of the first production line 10A and the second production line 10B and a warehouse (not shown) storing a plurality of feeders 30, while supplying feeders 30 carrying components required for production to the feeder storages 60 or collecting used feeders 30 from the feeder storages 60. Figure 7 As shown, the AGV 70 includes an AGV moving device 71, a feeder transfer device 73, a position sensor 77, a monitoring sensor 78, and an AGV control device 79. The AGV moving device 71 allows the AGV 70 to travel along a predetermined travel route, and includes a motor and a steering device for travel. The feeder transfer device 73, like the feeder transfer device 53 of the above-mentioned loader 50, transfers the feeder 30 to the feeder storage 60 of each production line 10. The position sensor 77 detects the travel position of the AGV 70. The monitoring sensor 78, like the monitoring sensor 58 of the above-mentioned loader 50, monitors the presence or absence of obstacles in the travel direction, for example, by using a laser scanner including a light-projecting unit 78a and a light-receiving unit 78b as a sensor unit.

[0051] The AGV control device 79 is composed of a well-known CPU, ROM, RAM, etc., and inputs detection signals from the position sensor 77 and the monitoring sensor 78, and outputs drive signals to the AGV moving device 71 (motor) and the feeder transfer device 73. The AGV control device 79 controls the AGV moving device 71 so that the AGV 70 moves along a predetermined driving route with the position opposite to the feeder storage warehouse 60 as the target position. When the AGV 70 reaches the target position, the AGV control device 79 controls the feeder transfer device 73 so as to recover the used feeder 30 from the feeder table 40 of the feeder storage warehouse 60, and to assemble a new feeder 30 on the feeder table 40 of the feeder storage warehouse 60. In addition, if an obstacle is detected by the monitoring sensor 78 during the driving of the AGV 70, the AGV control device 79 stops driving until the obstacle is no longer detected.

[0052] The management device 80 is a general-purpose computer such as Figure 7 As shown, the management device 80 is provided with a CPU 81, a ROM 82, a HDD 83 (storage device) and a RAM 84. The management device 80 is electrically connected to an input device 85 such as a keyboard and a mouse and a display 86. In addition to the production plan, the HDD 83 also stores various information required for production, such as feeder holding information, operation information, and status information. These information are managed in units of production lines 10. Here, the production plan is a plan that specifies which components are to be mounted on which substrate S in which order in each component mounting machine 20, and how many substrates S (products) are to be produced by the mounting in this way. In addition, the feeder holding information is information related to the feeders 30 held by each component mounting machine 20 and the feeder storage 60. In the feeder holding information, for example, the slot number of the feeder table 40 equipped with the feeder 30, the feeder ID, the type of component (component type) possessed by the feeder 30, the component size, the remaining number of components, etc. are included. The operation information is information related to the mounting instructions for each component mounting machine 20. The operation information includes the type of the suction nozzle 25a, the type and size of the component to be mounted, the mounting position, etc. The status information is information indicating the operation status of each component mounting machine 20. The status information includes the production period, the abnormality occurrence period, etc.

[0053] The management device 80 is connected to the mounting control device 29 by wire so as to be able to communicate, and exchanges various information with each component mounting machine 20 of each production line 10. The management device 80 receives the operation status from each component mounting machine 20 and updates the status information to the latest information. In addition, the management device 80 is connected to the supply control device 39 of the feeder 30 installed on the feeder table 40 of each component mounting machine 20 via the mounting control device 29 so as to be able to communicate. When the feeder 30 is removed from the component mounting machine 20 or a new feeder 30 is installed on the component mounting machine 20, the management device 80 receives the loading and unloading status from the corresponding component mounting machine 20 and updates the feeder holding information to the latest information. Furthermore, the management device 80 is connected to the loader control device 59 by wireless so as to be able to communicate, and exchanges various information with the loader 50. In addition, the management device 80 is connected to the AGV control device 79 by wireless so as to be able to communicate, and exchanges various information with the AGV 70. In addition, the management device 80 is also connected to the control devices of the printing device 12 , the printing inspection device 14 , and the installation inspection device so as to be communicable, and also exchanges various information from the corresponding devices.

[0054] Next, the operation of the production system 1 configured as above will be described. Fig. 9 This is a flowchart showing an example of the production process executed by the CPU 81 of the management device 80.

[0055] When executing the production process, the CPU 81 of the management device 80 first sends a production instruction to the first production line 10A and the second production line 10B so as to start the production of the product according to the production plan (S100). When the production starts, the CPU 81 obtains the production status from each component mounting machine 20 and updates the remaining number of components of each feeder 30. When the remaining number of components is small and the components are predicted to be exhausted, the CPU 81 sends a replacement instruction to the corresponding loader 50 to instruct the replacement of the feeder 30. If the loader 50 receives the replacement instruction, it moves (drives) to a position opposite to the component mounting machine 20 holding the feeder 30 to be replaced and replaces the feeder 30.

[0056] Next, the CPU 81 determines whether the production of the predetermined number of products has been completed in the first production line 10A and the second production line 10B, respectively (S110). When the CPU 81 determines that the production of the predetermined number of products has been completed, the production is stopped (S120), and the first loader 50A of the first production line 10A is moved to the first position and then stopped (S130). The processing is performed as follows: the CPU 81 sends a stop instruction including a target stop position (first position) to the loader control device 59 of the first loader 50A, and the loader control device 59 that receives the stop instruction controls the loader moving device 51 to stop the first loader 50A at the target stop position. Next, the CPU 81 moves the second loader 50B of the second production line 10B from the first position to a second position that is more than a predetermined distance (a threshold value Lref described later) away in the direction of the production line (substrate conveying direction) and then stops (S140), thereby ending the production processing. This process is performed as follows: the CPU 81 sends a stop command including a target stop position (second position) to the loader control device 59 of the second loader 50B. The loader control device 59 receiving the stop command controls the loader moving device 51 to stop the second loader 50B at the target stop position. Fig.10 This is an explanatory diagram showing a situation where two loaders on the first production line and the second production line block a passage.

[0057] Fig.11 1 is an explanatory diagram showing an example of the stop position where each loader of the first production line and the second production line stops when a predetermined number of productions are completed. Fig.10 As shown in FIG. 1 , when the interval d between the first loader 50A and the second loader 50B is narrow, if the stop positions of the first loader 50A and the second loader 50B overlap in the direction of the production line (substrate conveying direction), the passage between the production lines is blocked by the first loader 50A and the second loader 50B. In this case, the operator cannot pass through the production lines. In contrast, in the present embodiment, when the predetermined number of productions of the first production line 10A and the second production line 10B are completed, Fig.11 As shown, the first loader 50A and the second loader 50B stop at a first position and a second position respectively, which are at least a predetermined distance away from each other in the direction of the production line (substrate conveying direction). Thus, after the first production line 10A and the second production line 10B are stopped, a passage for operators to pass through the production lines can be ensured.

[0058] When the CPU 81 determines in S110 that the production of the predetermined quantity is not completed, it determines whether an abnormality has occurred in the component mounting machine 20 of one of the first production line 10A and the second production line 10B (S150). This determination is performed by obtaining status information from each component mounting machine 20 of the first production line 10A and the second production line 10B. When the CPU 81 determines that an abnormality has occurred in one of the component mounting machines 20, it stops production (S160). In addition, the production is stopped only in the production line of the first production line 10A and the second production line 10B that includes the component mounting machine 20 that has an abnormality. Then, the CPU 81 obtains the current position of each of the first loader 50A and the second loader 50B (S170). This processing is performed by obtaining the values ​​detected by each position sensor 57 of the first loader 50A and the second loader 50B from the loader control device 59 through communication. Next, the CPU 81 determines whether the first loader 50A is located near the component mounting machine 20 that has an abnormality (S180). When the CPU 81 determines that the first loader 50A is not located near the component mounting machine 20 where an abnormality has occurred, the CPU 81 stops the first loader 50A on the spot (S190). The processing is performed as follows: the CPU 81 sets the current position of the first loader 50A as the target stop position, sends a stop command including the target stop position to the loader control device 59 of the first loader 50A, and the loader control device 59 that receives the stop command controls the loader moving device 51 to stop the first loader 50A at the target stop position. On the other hand, when the CPU 81 determines that the first loader 50A is located near the component mounting machine 20 where an abnormality has occurred, the CPU 81 moves the first loader 50A to a position away from the vicinity of the component mounting machine 20 where an abnormality has occurred and then stops (S200). The processing is performed as follows: a position a predetermined distance away from the position of the component mounting machine 20 where the abnormality occurred is set as a target stop position, a stop instruction including the target stop position is sent to the loader control device 59 of the first loader 50A, and the loader control device 59 that receives the stop instruction controls the loader moving device 51 to stop the first loader 50A at the target stop position.

[0059] Next, the CPU 81 calculates the distance L in the production line direction from the stop position where the first loader 50A is stopped in S190 or S200 to the second loader 50B (S210), and determines whether the calculated distance L is less than the threshold value Lref (S220). Here, the threshold value Lref is defined as the minimum gap between the first loader 50A and the second loader 50B that the operator can pass. When the CPU 81 determines that the distance L is greater than the threshold value Lref, it further determines whether the second loader 50B is located near the component mounting machine 20 where an abnormality has occurred (S230). When the CPU 81 determines that the second loader 50B is not located near the component mounting machine 20 where an abnormality has occurred, it stops the second loader 50B on the spot (S240) and ends the production process. The processing is performed as follows: the CPU 81 sets the current position of the second loader 50B as the target stop position, sends a stop command including the target stop position to the loader control device 59 of the second loader 50B, and the loader control device 59 receiving the stop command controls the loader moving device 51 to stop the second loader 50B at the target stop position. When the CPU 81 determines in S200 that the distance L is less than the threshold value Lref, or even if the distance L is greater than the threshold value Lref, it determines in S210 that the second loader 50B is located near the component mounting machine 20 where an abnormality has occurred, the second loader 50B is moved away from the stop position of the first loader 50A by more than the threshold value Lref and stops at a position away from the vicinity of the component mounting machine 20 where an abnormality has occurred (S250), and the production processing ends. The processing is performed as follows: a target stop position is set based on the stop position of the first loader 50A and the position of the component mounting machine 20 where the abnormality has occurred, a stop instruction including the target stop position is sent to the loader control device 59 of the second loader 50B, and the loader control device 59 that receives the stop instruction controls the loader moving device 51 to stop the second loader 50B at the target stop position. Fig.12 10A and 10B are diagrams showing the stop positions of the loaders of the first and second production lines when an abnormality occurs in one of the component mounting machines of the production system. Fig.12 As shown, the first loader 50A and the second loader 50B are not only separated from each other by more than the threshold value Lref in the production line direction, but also stopped at a position away from the vicinity of the abnormal component mounting machine 20. Thus, the operator can go to the front of the abnormal component mounting machine 20 through the production line, confirm the status of the component mounting machine 20, or perform necessary operations.

[0060] When CPU81 determines in S140 that no abnormality occurs in any component mounting machine 20, it further determines whether AGV70 enters the production line between the first production line 10A and the second production line 10B (S260). This process can be determined based on the production plan or based on the predetermined running time of AGV70. When CPU81 determines that AGV70 has entered, it moves the first loader 50A and the second loader 50B to a position avoiding the driving route of the AGV70 and then stops (S270), and returns to S110. The process is performed as follows: CPU81 sets the target stop position based on the driving route of AGV70, sends a stop instruction containing the target stop position to each loader control device 59 of the first loader 50A and the second loader 50B, and the loader control device 59 that receives the stop instruction controls the loader moving device 51 to stop the corresponding loader 50 at the target stop position. Fig.13 1 is an explanatory diagram showing an example of the stop position of each loader of the first production line and the second production line when the AGV enters. As shown in the figure, when the AGV 70 enters the production line, the first loader 50A and the second loader 50B stop at a position that does not block the driving route of the AGV 70 ( Fig.13 In this way, the AGV 70 can smoothly recover and replenish the required feeders 30 for each feeder storage 60 of the first production line 10A and the second production line 10B. In addition, when the recovery and replenishment of the feeder 30 by the AGV 70 is completed and the feeder 30 is moved out of the production line 10, the CPU 81 restarts the travel of the first loader 50A and the second loader 50B.

[0061] Here, the correspondence between the main elements of the first embodiment and the main elements described in the claims is described. That is, the first production line 10A of the first embodiment is equivalent to the first production line of the present disclosure, the second production line 10B is equivalent to the second production line, the feeder table 40 is equivalent to the loading and unloading part, the first loader 50A is equivalent to the first feeder replacement device, and the second loader 50B is equivalent to the second feeder replacement device. In addition, the AGV 70 is equivalent to the automatic transport device.

[0062] In addition, the present disclosure is not limited to the above-mentioned embodiment at all, and can of course be implemented in various forms as long as it belongs to the technical scope of the present disclosure.

[0063] For example, in the first embodiment, the first loader 50A and the second loader 50B stop at positions separated from each other by a predetermined distance in the production line direction when an abnormality occurs in one of the component mounting machines 20. However, instead of or in addition to this, the first loader 50A and the second loader 50B may stop at positions separated from each other by a predetermined distance in the production line direction when a predetermined operation is performed. Fig.14 is a flowchart showing the production process of a modified example. Fig.14 in the process of Fig. 9 The same processing is marked with the same step number, and its description is omitted. In the production processing of the modified example, when the CPU 81 of the management device 80 determines in S110 that the production of the predetermined quantity is not completed, it determines whether the operator has performed a stop request operation (S300) to request the loader 50 to stop. This processing is performed, for example, by determining whether the stop request operation is performed by the input device 85. When the CPU 81 determines that the stop request operation is not performed, it returns to S110. On the other hand, when the CPU 81 determines that the stop request operation is performed, the first loader 50A stops on the spot (S310), and obtains the current position of the first loader 50A and the second loader 50B (S320). Then, the CPU 81 calculates the distance L from the stop position of the first loader 50A to the second loader 50B (S320), and determines whether the calculated distance L is less than the threshold value Lref (S340). When the CPU 81 determines that the distance L is greater than the threshold value Lref, the second loader 50B stops on the spot (S350) and returns to S110. On the other hand, when the CPU 81 determines that the distance L is less than the threshold value Lref, the CPU 81 moves the second loader 50B to a position that is more than the threshold value Lref away from the stop position of the first loader 50A in the direction of the production line and then stops (S360), and returns to S110. In addition, the control of the first loader 50A and the stop control of the second loader 50B are as described above. Thus, the operator can stop the first loader 50A and the second loader 50B at any time on the basis of ensuring the passage between the production lines.

[0064] In addition, in the first embodiment, the first loader 50A and the second loader 50B stop at positions separated from each other by a predetermined distance or more in the direction of the production line when the AGV 70 enters the production line. However, the first loader 50A and the second loader 50B may also stop at positions separated from each other by a predetermined distance or more in the direction of the production line in a pre-specified time period independent of the entry of the AGV 70. Thus, the operator can pass through the production line in the specified time period and perform the required operation.

[0065] In addition, in the first embodiment, when the management device 80 (CPU 81) stops the first loader 50A and the second loader 50B, it obtains the current positions from the two loaders 50A and 50B, sets the target stop position so that the two loaders 50A and 50B stop at positions that are more than a predetermined distance away from each other, and sends a stop instruction including the target stop position to the loader control devices 59 of the two loaders 50A and 50B. However, the loader control devices 59 of the two loaders 50A and 50B may also grasp the current position of the other loader by mutual communication, thereby setting the target stop position by themselves so that the two loaders 50A and 50B stop at positions that are more than a predetermined distance away from each other for control.

[0066] Fig.15 1 is a schematic diagram of the production system of the second embodiment. The production system 101 of the second embodiment includes: fences 102 that can be opened and closed, respectively provided at both ends of the first production line 10A and the second production line 10B, for preventing people from intruding between the production lines; and a locking device 103 that locks the fences 102 in a closed state. The locking device 103 is controlled by the CPU 81 of the management device 80. Fig.16 : is a flowchart showing the production process of the second embodiment. Fig.16 Production processing and Fig.14 The difference of the production process is that S400 is executed instead of S300, and the process of S410 is executed after S350 and S360. In the second embodiment, when the CPU 81 of the management device 80 determines in S110 that the production of the predetermined quantity has not been completed, it determines whether a request to unlock the fence 102 has been made (S400). When the CPU 81 determines that there is no request to unlock, it returns to S110. On the other hand, when the CPU 81 determines that a request to unlock has been made, it returns to S110. Fig.14Similarly, in S310 to S360 of the production process, the first loader 50A and the second loader 50B are stopped at a position more than a predetermined distance (threshold value Lref) from each other. Then, the CPU 81 controls the locking device 103 to release the lock of the fence 102 (S410), and returns to S110. Thus, the production system 101 of the second embodiment can prevent people from intruding into the production line by locking the fence 102 in a closed state by using the locking device 103 under normal circumstances. In addition, when there is a request for unlocking, the production system 101 stops the first loader 50A and the second loader 50B at a position more than a predetermined distance from each other, and then releases the lock of the baffle 102, thereby ensuring a passage for people to pass through the production line. When people exit from the production line, the fence 102 is closed and requested to be locked, the CPU 81 controls the locking device 103 to lock the fence 102, and then restarts the travel of the first loader 50A and the second loader 50B. In the second embodiment, the first loader 50A and the second loader 50B may not include the monitoring sensor 58 .

[0067] Fig.17 This is a schematic structural diagram of the production system of the third embodiment. As shown in the figure, the production system 201 of the third embodiment is equipped with intrusion detection sensors 202 for detecting the intrusion of people (operators) between the production lines at both ends of the first production line 10A and the second production line 10B. The intrusion detection sensor 202 is configured as a transmission type optical sensor, for example, and includes: a light emitting unit 202a, which is provided at the end of one of the first production line 10A and the second production line 10B; and a light receiving unit 202b, which is provided at the end of the other production line in a manner opposite to the light emitting unit 202a. The detection signal from the intrusion detection sensor 202 is input to the management device 80 of the production system 201. Fig.18 : is a flowchart showing the production process of the third embodiment. Fig.18 Production processing and Fig.14 The difference of the production process is that S500 is executed instead of S300. In the third embodiment, when the CPU 81 of the management device 80 determines in S110 that the production of the predetermined quantity has not been completed, it determines whether the intrusion of a person is detected by the intrusion detection sensor 202 (S500). When the CPU 81 determines that the intrusion of a person is not detected, it returns to S110. On the other hand, when the CPU 81 determines that the intrusion of a person is detected, it returns to S110. Fig.14Similarly, in S310 to S360 of the production process, the first loader 50A and the second loader 50B are stopped at a position where they are more than a predetermined distance (threshold value Lref) away from each other, and the process returns to S110. In this way, a passage for people to pass through the production line can be ensured. After the CPU 81 detects that a person has intruded into the production line through the intrusion detection sensor 202, when the CPU 81 detects that the person has exited the production line through the intrusion detection sensor 202, the first loader 50A and the second loader 50B are restarted.

[0068] As described above, the production system of the present disclosure comprises: a first production line, including a plurality of component mounting machines, the plurality of component mounting machines are neatly arranged along a substrate conveying direction and are provided with a loading and unloading section for loading and unloading a feeder, and components supplied from a feeder assembled on the loading and unloading section are mounted on the substrate; and a second production line, including a plurality of component mounting machines, the plurality of component mounting machines are neatly arranged in parallel with the first production line and are provided with a loading and unloading section in a manner opposite to the loading and unloading section of the first production line, and components supplied from a feeder assembled on the loading and unloading section are mounted on the substrate. The main point is that the production system comprises: a first feeder replacement device, The first feeder replacement device moves in the direction of the neat arrangement of the component mounting machines of the first production line, and loads and unloads the feeders relative to the loading and unloading parts of the component mounting machines of the first production line, thereby replacing the feeders; and a second feeder replacement device moves along the direction of the neat arrangement of the component mounting machines of the second production line at a gap that can be staggered with the first feeder replacement device, and loads and unloads the feeders relative to the loading and unloading parts of the component mounting machines of the second production line, thereby replacing the feeders. When the production is stopped, the first feeder replacement device and the second feeder replacement device stop at a gap greater than a predetermined distance from each other in the substrate conveying direction.

[0069] The production system disclosed in the present invention comprises a first production line and a second production line arranged in parallel with each other, and a first feeder replacement device and a second feeder replacement device respectively provided on each production line at intervals that allow for mutually staggered passage. The first feeder replacement device and the second feeder replacement device stop at intervals of more than a predetermined distance in the substrate conveying direction (the extension direction of the production line) when production is stopped. Thus, even if the interval between the production lines is reduced, it is possible to achieve a production system that can ensure space for people to pass between the production lines when production is stopped.

[0070] In such a production system of the present disclosure, when production stops due to completion of a predetermined number of productions, the first feeder replacement device and the second feeder replacement device may be respectively moved to a predetermined stop position and stopped, and the stop position of the first feeder replacement device and the stop position of the second feeder replacement device are defined as positions separated from each other by more than the predetermined distance in the substrate conveying direction. In this way, after the production line is stopped, a passage for people to pass through the production lines can be ensured.

[0071] In addition, in the production system disclosed in the present invention, when production stops due to a predetermined abnormality, if the first feeder replacement device and the second feeder replacement device are separated from each other by more than the predetermined distance in the substrate conveying direction, the first feeder replacement device and the second feeder replacement device stop, and if the first feeder replacement device and the second feeder replacement device are not separated from each other by more than the predetermined distance in the substrate conveying direction, the first feeder replacement device and the second feeder replacement device move to a position separated by more than the predetermined distance and then stop. In this way, when an abnormality occurs, each feeder replacement device can be stopped in advance while ensuring a passage for operators to pass through the production lines.

[0072] In this case, when production stops due to an abnormality in one of the component mounting machines constituting the first production line and the second production line, the first feeder replacement device and the second feeder replacement device may stop at positions separated from each other by more than the predetermined distance in the substrate conveying direction and away from the vicinity of the component mounting machine in which the abnormality occurred. In this way, when an abnormality occurs in one of the component mounting machines, a work space for an operator to go to the component mounting machine to confirm the abnormality and perform necessary operations can be ensured.

[0073] In addition, in the production system disclosed in the present invention, when a stop instruction is issued due to a predetermined operation, the first feeder replacement device and the second feeder replacement device may stop at a distance greater than a predetermined distance from each other in the substrate conveying direction. In this way, the operator can ensure the passage between the production lines at any time and stop the first feeder replacement device and the second feeder replacement device on this basis.

[0074] Furthermore, in the production system disclosed in the present invention, the production system may also include an automatic transport device, which moves feeders in and out relative to the first production line and the second production line along a predetermined driving route according to a predetermined time period or schedule, and when the automatic transport device moves feeders in and out relative to the first production line and the second production line, the first feeder replacement device and the second feeder replacement device stop at a position avoiding the driving route. In this way, the recovery and replenishment of feeders based on the automatic transport device can be smoothly performed.

[0075] The second production system disclosed in the present invention comprises: a first production line, including a plurality of component mounting machines, the plurality of component mounting machines are neatly arranged along a substrate conveying direction and are provided with a loading and unloading section for loading and unloading a feeder, so as to mount components supplied from a feeder assembled on the loading and unloading section on the substrate; and a second production line, including a plurality of component mounting machines, the plurality of component mounting machines are neatly arranged in parallel with the first production line and are provided with a loading and unloading section in a manner opposite to the loading and unloading section of the first production line, so as to mount components supplied from the feeder assembled on the loading and unloading section on the substrate. The main idea is that the production system comprises: a first feeder replacement device, which moves along the neat arrangement direction of the component mounting machines of the first production line, and loads and unloads feeders relative to the loading and unloading sections of the component mounting machines of the first production line, thereby replacing the feeders; a second production line, including a plurality of component mounting machines, A second feeder replacement device, which moves along the neatly arranged direction of the component mounting machines of the second production line at a distance that can be staggered with the first feeder replacement device, and loads and unloads feeders relative to the loading and unloading parts of the component mounting machines of the second production line, thereby replacing the feeders; an openable and closable fence for preventing people from intruding into the area surrounded by the first production line and the second production line; and a locking device for locking the fence in a closed state, and when the locking device is requested to release the lock, the first feeder replacement device and the second feeder replacement device stop at a distance greater than a predetermined distance from each other in the substrate conveying direction, and when the locking device is requested to release the lock, the locking device releases the lock after the first feeder replacement device and the second feeder replacement device stop.

[0076] The third production system disclosed in the present invention comprises: a first production line, including a plurality of component mounting machines, the plurality of component mounting machines are neatly arranged along a substrate conveying direction and are provided with a loading and unloading section for loading and unloading a feeder, and components supplied from a feeder assembled on the loading and unloading section are mounted on the substrate; and a second production line, including a plurality of component mounting machines, the plurality of component mounting machines are neatly arranged in parallel with the first production line and are provided with a loading and unloading section in a manner opposite to the loading and unloading section of the first production line, and components supplied from the feeder assembled on the loading and unloading section are mounted on the substrate. The main point is that the production system comprises: a first feeder replacement device, which moves along the neat arrangement direction of the component mounting machines of the first production line and is relative to the first production line. The loading and unloading sections of the component mounting machines of the first production line load and unload feeders, thereby replacing the feeders; a second feeder replacement device, which moves along the neat arrangement direction of the component mounting machines of the second production line at an interval that allows it to pass through in an offset manner with the first feeder replacement device, and loads and unloads feeders relative to the loading and unloading sections of the component mounting machines of the second production line, thereby replacing the feeders; and an intrusion detection sensor, which detects the intrusion of a person into the area surrounded by the first production line and the second production line, and when the intrusion of a person is detected by the intrusion detection sensor, the first feeder replacement device and the second feeder replacement device stop at an interval greater than a predetermined distance from each other in the substrate conveying direction.

[0077] Industrial Applicability

[0078] The present disclosure can be applied to the manufacturing industry and the like of a production system.

[0079] Description of Reference Numerals

[0080] 1, 101, 201: Production system 10: Production line 10A: First production line 10B: Second production line 12: Printing device 14: Printing inspection device 16: Guide rail 20: Component mounting machine 21: Mounting machine body 21a: Housing 21b: Base 22: Substrate transport device 23: Head moving device 24: Slider 25: Mounting head 25a: Suction nozzle 26: Marking camera 28: Parts camera 29: Mounting control device 30: Feeder 31: Belt 32: Belt reel 33: Belt conveying mechanism 34: Positioning pin 35: Connector 37: Track member 39: Supply control device 40: Feeder table 42: Slot 44: Positioning hole 45: Connector 50: Loader 50A: First loader 50B: Second loader 51: Loader moving device 52a: Motor 52b: Guide roller 53: Feeder transfer device 54: Clamping mechanism 55: Clamping moving device 57: Position sensor 58: Monitoring sensor 58a: Light projecting unit 58b: Light receiving unit 59: Loader control device 60: Feeder storage 70: AGV 71: AGV moving device 73: feeder transfer device 77: position sensor 78: monitoring sensor 78a: light projecting unit 78b: light receiving unit 79: AGV control device 80: management device 81: CPU 82: ROM 83: HDD 84: RAM 85: input device 86: display 102: fence 103: locking device 202: intrusion detection sensor 202a: light emitting unit 202b: light receiving unit S: substrate.

Claims

1. A production system comprising: The first production line includes a plurality of component mounting machines, which are arranged in a row along a substrate conveying direction and are provided with a loading and unloading section for loading and unloading a feeder, and mount components supplied from a feeder mounted on the loading and unloading section on the substrate; and The second production line includes a plurality of component mounting machines, which are neatly arranged in parallel with the first production line and are provided with a loading and unloading section in a manner opposite to the loading and unloading section of the first production line, and components supplied from a feeder mounted on the loading and unloading section are mounted on the substrate, wherein: The production system has: A first feeder replacement device moves along the direction in which the component mounting machines of the first production line are aligned, and loads and unloads feeders relative to the loading and unloading parts of the component mounting machines of the first production line, thereby replacing the feeders; and The second feeder replacement device moves along the neat arrangement direction of each component mounting machine of the second production line at a distance that can be staggered with the first feeder replacement device, and loads and unloads feeders relative to the loading and unloading parts of each component mounting machine of the second production line, thereby replacing the feeders. When production is stopped, the first feeder replacement device and the second feeder replacement device stop at a distance greater than a predetermined distance from each other in the substrate conveyance direction.

2. The production system according to claim 1, wherein: When production stops due to completion of a predetermined number of productions, the first feeder replacement device and the second feeder replacement device are respectively moved to a predetermined stop position and stop. The stop position of the first feeder replacement device and the stop position of the second feeder replacement device are defined as positions separated from each other by more than the predetermined distance in the substrate conveyance direction.

3. The production system according to claim 1 or 2, wherein: When production stops due to a predetermined abnormality, if the first feeder replacement device and the second feeder replacement device are separated from each other by more than the predetermined distance in the substrate conveying direction, the first feeder replacement device and the second feeder replacement device stop; if the first feeder replacement device and the second feeder replacement device are not separated from each other by more than the predetermined distance in the substrate conveying direction, the first feeder replacement device and the second feeder replacement device move to a position separated by more than the predetermined distance and then stop.

4. The production system according to claim 3, wherein: When production stops due to an abnormality in one of the component mounting machines constituting the first production line and the second production line, the first feeder replacement device and the second feeder replacement device stop at a position separated from each other by more than the predetermined distance in the substrate conveying direction and avoiding the vicinity of the component mounting machine where the abnormality occurred.

5. The production system according to claim 1 or 2, wherein: When a stop instruction is issued by a predetermined operation, the first feeder replacement device and the second feeder replacement device stop at a distance greater than a predetermined distance from each other in the substrate conveyance direction.

6. The production system according to claim 1 or 2, wherein: The production system includes an automatic transport device, which moves feeders in and out of the first production line and the second production line along a predetermined travel route according to a predetermined time period or schedule. When the automatic transport device carries feeders in and out of the first production line and the second production line, the first feeder replacement device and the second feeder replacement device stop at positions avoiding the travel route.

7. A production system comprising: The first production line includes a plurality of component mounting machines, which are arranged in a row along a substrate conveying direction and are provided with a loading and unloading section for loading and unloading a feeder, and mount components supplied from a feeder mounted on the loading and unloading section on the substrate; and The second production line includes a plurality of component mounting machines, which are neatly arranged in parallel with the first production line and are provided with a loading and unloading section in a manner opposite to the loading and unloading section of the first production line, and components supplied from a feeder mounted on the loading and unloading section are mounted on the substrate, wherein: The production system has: A first feeder replacement device moves along the direction in which the component mounting machines of the first production line are aligned, and loads and unloads the feeder relative to the loading and unloading section of each component mounting machine of the first production line, thereby replacing the feeder; A second feeder replacement device moves along the aligned direction of the component mounting machines of the second production line at a distance that can be staggered with the first feeder replacement device, and loads and unloads feeders relative to the loading and unloading parts of the component mounting machines of the second production line, thereby replacing the feeders; An openable and closable fence for preventing people from intruding into the area surrounded by the first production line and the second production line; and A locking device is used to lock the fence into a closed state. When release of the lock of the locking device is requested, the first feeder replacement device and the second feeder replacement device stop at a distance greater than a predetermined distance from each other in the substrate conveying direction. When release of the lock is requested, the locking device releases the lock after the first feeder replacement device and the second feeder replacement device are stopped.

8. A production system comprising: The first production line includes a plurality of component mounting machines, which are arranged in a row along a substrate conveying direction and are provided with a loading and unloading section for loading and unloading a feeder, and mount components supplied from a feeder mounted on the loading and unloading section on the substrate; and The second production line includes a plurality of component mounting machines, which are neatly arranged in parallel with the first production line and are provided with a loading and unloading section in a manner opposite to the loading and unloading section of the first production line, and components supplied from a feeder mounted on the loading and unloading section are mounted on the substrate, wherein: The production system has: A first feeder replacement device moves along the direction in which the component mounting machines of the first production line are aligned, and loads and unloads the feeder relative to the loading and unloading section of each component mounting machine of the first production line, thereby replacing the feeder; A second feeder replacement device moves along the aligned direction of the component mounting machines of the second production line at a distance that can be staggered with the first feeder replacement device, and loads and unloads feeders relative to the loading and unloading parts of the component mounting machines of the second production line, thereby replacing the feeders; and an intrusion detection sensor for detecting an intrusion of a person into an area surrounded by the first production line and the second production line, When the intrusion of a person is detected by the intrusion detection sensor, the first feeder replacement device and the second feeder replacement device stop at a distance greater than a predetermined distance from each other in the substrate conveyance direction.

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