Disused tape recovering unit

Abstract

To suppress a disused tape from being leaked.SOLUTION: A conveyor device to which the other conveyor device (a downstream conveyor) is adjacent to a disused tape transport direction downstream side, outputs an operation request to the downstream conveyor when a disused tape generation condition is established or the operation request is input from the other conveyor device (an upstream conveyor) on a disused tape transport direction upstream side, starts an operation when an operation of the downstream conveyor is confirmed, and cancels the operation request to the downstream conveyor while stopping the operation if the disused tape generation condition is not established in the operation, and the operation request from the upstream conveyor is not input. On the other hand, the conveyor device to which a disused tape collection part is adjacent establishes the disused tape generation condition or inputs the operation request from the upstream conveyor, and if the disused tape collection part is in a collection available state, the operation is started, and if the disused tape generation condition is not established in the operation, and the operation request from the upstream conveyer is also not input, the operation is stopped.SELECTED DRAWING: Figure 10

Description

Technical Field

[0001] This specification discloses a waste tape conveying device and a component mounting system.

Background Art

[0002] Conventionally, a component mounting system in which a plurality of component mounters are installed along the substrate conveying direction is known. For example, Patent Document 1 discloses a component mounting system including a waste tape conveying device that conveys waste tape generated along with the supply of components by a component supply device (tape feeder) in a direction parallel to the substrate conveying direction. The waste tape conveying device includes a plurality of conveyor devices independently installed for each component mounter. The plurality of conveyor devices sequentially transfer the waste tape generated at each component mounter to the conveyor device adjacent to the downstream side in the waste tape conveying direction, and finally discharge it to a collection box installed on the side of the component mounter at the end of the substrate conveying direction.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Although Patent Document 1 described above describes that the waste tape generated at each component mounter is sequentially conveyed while being transferred to the conveyor device adjacent to the conveyor device provided in each component mounter, nothing is mentioned about how to operate the plurality of conveyor devices. In the component mounting system described in Patent Document 1, it is conceivable to always operate the plurality of conveyor devices. However, when the collection box is full or the operation of some conveyor devices has stopped due to a failure or the like, there is a risk that the waste tape may overflow from the collection box or the conveyor device.

[0005] The present disclosure mainly aims to prevent waste tape generated by each component mounter from overflowing from the waste tape collection unit or the conveyor device while being collected by the waste tape collection unit in a case where a plurality of conveyor devices are provided independently for each component mounter.

Means for Solving the Problem

[0006] The present disclosure has adopted the following means to achieve the above main object.

[0007] The waste tape conveying device of the present disclosure is applied to a component mounting system in which a plurality of component mounters having a feeder that feeds out a tape accommodating a plurality of components to supply the components, a substrate conveying device that conveys a substrate, a mounting head that takes out the components from the tape fed out by the feeder and mounts them on the substrate conveyed by the substrate conveying device, and a cutting device that cuts the tape after the components have been taken out from the tape fed out by the feeder and discharges it as waste tape are arranged in series to form a component mounting line. The waste tape conveying device conveys the waste tape discharged from each component mounter to a waste tape collection unit provided at the conveying end of the waste tape. The waste tape conveying device is provided independently for at least each component mounter, and includes a plurality of conveyor devices configured to be able to transfer the waste tape to another conveyor device adjacent to the downstream side in the waste tape conveying direction or the waste tape collection unit. Among the plurality of conveyor devices, the conveyor device adjacent to the downstream side in the waste tape conveying direction with another conveyor device adjacent thereto outputs an operation request to the other conveyor device adjacent to the downstream side in the waste tape conveying direction when a predetermined waste tape generation condition for discharging the waste tape from the corresponding component mounter is satisfied or an operation request is input from another conveyor device adjacent to the upstream side in the waste tape conveying direction. When the operation of the other conveyor device adjacent to the downstream side in the waste tape conveying direction is confirmed, it starts operating. If the waste tape generation condition is not satisfied during operation and no operation request is input from another conveyor device adjacent to the upstream side in the waste tape conveying direction, it stops operating and cancels the operation request to the other conveyor device adjacent to the downstream side in the waste tape conveying direction. Among the plurality of conveyor devices, the conveyor device adjacent to the waste tape collection unit on the downstream side in the waste tape conveying direction starts operating when the waste tape generation condition is satisfied or an operation request is input from another conveyor device adjacent to the upstream side in the waste tape conveying direction and the waste tape collection unit is in a recoverable state where it can recover the waste tape. If the waste tape generation condition is not satisfied during operation and no operation request is input from another conveyor device adjacent to the upstream side in the waste tape conveying direction, it stops operating. This is the gist of the matter.

[0008] The waste tape conveying device of the present disclosure is applied to a component mounting system in which a plurality of component mounters are arranged in series to form a component mounting line, and conveys the waste tape discharged from each component mounter to a waste tape collection unit provided at its conveying end. This waste tape conveying device has a conveyor device provided independently for at least each component mounter. Each conveyor device can transfer the waste tape to another conveyor device adjacent to it on the downstream side in the waste tape conveying direction or to the waste tape collection unit. Among the plurality of conveyor devices, the conveyor device adjacent to another conveyor device on the downstream side in the waste tape conveying direction, when a predetermined waste tape generation condition under which waste tape is discharged from the corresponding component mounter is satisfied or an operation request is input from another conveyor device adjacent to it on the upstream side in the waste tape conveying direction, outputs an operation request to another conveyor device adjacent to it on the downstream side in the waste tape conveying direction, and when it confirms the operation of another conveyor device adjacent to it on the downstream side in the waste tape conveying direction, starts the operation. If the waste tape generation condition is not satisfied during the operation and no operation request is input from another conveyor device adjacent to it on the upstream side in the waste tape conveying direction, it stops the operation and cancels the operation request to another conveyor device adjacent to it on the downstream side in the waste tape conveying direction. On the other hand, among the plurality of conveyor devices, the conveyor device adjacent to the waste tape collection unit on the downstream side in the waste tape conveying direction, when the waste tape generation condition is satisfied or an operation request is input from another conveyor device adjacent to it on the upstream side in the waste tape conveying direction, and the waste tape collection unit is in a recoverable state where it can collect the waste tape, starts the operation. If the waste tape generation condition is not satisfied during the operation and no operation request is input from another conveyor device adjacent to it on the upstream side in the waste tape conveying direction, it stops the operation. Thereby, the waste tape conveying device can prevent, for example, the waste tape from overflowing from the conveyor device while being conveyed to the waste tape collection unit. As a result, the waste tape conveying device can suppress the waste tape from overflowing from the conveyor device during the conveyance to the waste tape collection unit. Also, since each conveyor device stops the operation when the waste tape generation condition ceases to be satisfied or no operation request is input from the conveyor device on the upstream side in the waste tape conveying direction, energy saving can be achieved compared to a conveyor device that operates constantly.

[0009] The component mounting system of the present disclosure includes a feeder that feeds out a tape containing a plurality of components to supply the components, a substrate conveyor that conveys a substrate, a mounting head that takes out the components from the tape fed out by the feeder and mounts them on the substrate conveyed by the substrate conveyor, and a cutting device that cuts the tape after the components have been taken out from the tape fed out by the feeder and discharges it as waste tape. A component mounting line in which a plurality of component mounters are arranged in series, and the waste tape conveyor of the present disclosure described above. The component mounting line continues the component mounting operation until a predetermined time elapses when the waste tape collection unit enters a non-recoverable state in which it cannot collect the waste tape or the operation of any of the plurality of conveyor devices stops during the component mounting operation, and stops the component mounting operation when the predetermined time elapses.

[0010] The component mounting system of the present disclosure includes a component mounting line in which a plurality of component mounters are arranged in series, and the waste tape conveyor of the present disclosure described above. During the component mounting operation, when the waste tape collection unit enters a non-recoverable state in which it cannot collect the waste tape or the operation of any of the plurality of conveyor devices stops, the component mounting line continues the component mounting operation until a predetermined time elapses, and stops the component mounting operation when the predetermined time elapses. As a result, the component mounting system can more reliably prevent the waste tape from overflowing from the conveyor device while being conveyed to the waste tape collection unit. In addition, the component mounting system can increase the production efficiency compared to a system that immediately stops the component mounting operation when the waste tape collection unit enters a non-recoverable state or any of the plurality of conveyor devices stops during the component mounting operation. Note that the component mounting line may continue the component mounting operation until the discharge amount of the waste tape reaches a predetermined amount at any of the plurality of component mounters, and stop the component mounting operation when the discharge amount of the waste tape reaches the predetermined amount.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

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Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Embodiments for Carrying Out the Invention

[0012] Next, embodiments for carrying out the present disclosure will be described with reference to the drawings.

[0013] FIG. 1 is a configuration diagram showing an outline of the configuration of the component mounting system 10 of the present embodiment. FIG. 2 is a configuration diagram showing an outline of the configuration of the component mounter 20. FIG. 3 is a configuration diagram showing an outline of the configuration of the waste tape discharging device 30. FIG. 4 is a configuration diagram schematically showing the configuration of the waste tape conveying device 40. FIG. 5 is an explanatory diagram showing the state of delivery of the waste tape between adjacent conveyor devices 41. FIG. 6 is a configuration diagram showing an outline of the configuration of the waste tape collection unit 50. FIG. 7 is an explanatory diagram showing the electrical connection relationship between each control device 48 of the plurality of modules M and the control device 58 of the waste tape collection unit 50. In FIGS. 1 and 2, the left-right direction is the X-axis direction, the front-rear direction is the Y-axis direction, and the up-down direction is the Z-axis direction.

[0014] As shown in FIG. 1, the component mounting system 10 includes a printer 12, a plurality of component mounters 20, a waste tape conveying device 40 (see FIG. 4), and a waste tape collection unit 50. The printer 12 is a solder printer that prints solder on the substrate S. The component mounters 20 are aligned along the substrate conveying direction (X direction) and mount components on the substrate S. The printer 12 and the component mounters 20 are arranged in this order in the substrate conveying direction to form a component mounting line. In the present embodiment, each device constituting the component mounting line is also referred to as a module M.

[0015] As shown in FIG. 2, the component mounter 20 includes a housing 21, a feeder table 22, a substrate conveying device 23, a head 24, and a head moving mechanism 25. The feeder table 22 is provided with a plurality of feeders 26 detachably held in alignment in the X direction. The substrate conveying device 23 is a belt conveyor device that conveys the substrate S from left to right. The head 24 holds a suction nozzle, sucks the component P supplied from the feeder 26 mounted on the feeder table 22 by the suction nozzle, and mounts it on the substrate S. The head moving mechanism 25 moves the head 24 in the front-rear direction and the left-right direction (XY direction).

[0016] As shown in FIG. 3, the feeder 26 includes a reel 27 around which a tape T is wound. The tape T has recesses arranged at predetermined intervals in the longitudinal direction, and components P are accommodated in the recesses. The components P are protected by a cover film attached to the upper surface of the tape T. The feeder 26 draws out the tape T from the reel 27 by a feeding device (not shown) and peels off the cover film from the tape T, thereby supplying the components P to the suction position in an exposed state. The used tape (hereinafter referred to as waste tape) from which the components P have been taken out by the suction nozzle is discharged by a waste tape discharge device 30.

[0017] As shown in FIG. 3, the waste tape discharge device 30 includes an introduction duct 31 provided behind the feeder 26 mounted on the feeder base 22 for introducing the waste tape sent out from the feeder 26, a tape cutting machine 32 for finely cutting the introduced waste tape with a cutter, and a discharge duct 33 for discharging the cut waste tape. The tape cutting machine 32 drives the cutter to cut the waste tape each time the feeder 26 feeds out the tape T for supplying the components P. The waste tape cut by the tape cutting machine 32 is supplied to a conveyor device (belt conveyor device) 41 through the discharge duct 33 and is conveyed outside the component mounting machine 20 by the conveyor device 41.

[0018] As shown in FIG. 4, the waste tape conveying device 40 includes a conveyor device 41. The conveyor devices 41 are provided independently for each module M. Each conveyor device 41 is aligned in a row in the substrate conveying direction in a state where a plurality of modules M constituting the component mounting line are arranged side by side in the substrate conveying direction. As shown in FIG. 5, each conveyor device 41 is installed so as to have an upward slope in the waste tape conveying direction, and the ends of adjacent conveyor devices 41 are configured to overlap vertically. Thereby, each conveyor device 41 can smoothly transfer the waste tape to the adjacent conveyor device 41 and can suppress the dropping of the waste tape during the transfer. In the present embodiment, the waste tape conveying direction is defined as the direction opposite to the substrate conveying direction (the upstream direction of the component mounting line).

[0019] As shown in FIG. 1, the waste tape collection unit 50 is installed adjacent to the module M (printing machine 12) at the start end in the substrate conveyance direction, and collects the waste tape conveyed by the waste tape conveyance device 40. As shown in FIG. 6, this waste tape collection unit 50 includes a suction unit 51 that receives the waste tape from the conveyor device 41 at the most downstream in the waste tape conveyance direction, a vacuum pump 52 that generates a suction force for sucking the waste tape into the suction unit 51, and a storage unit 53 that stores the waste tape sucked from the suction unit 51. The storage unit 53 is a box-shaped housing, and a handle 53a is provided on the front door. The operator can open the front door of the storage unit 53 by gripping the handle 53a to collect the waste tape stored in the storage unit 53 and clean the inside of the storage unit 53. Further, the waste tape collection unit 50 also includes a display operation unit 54 for displaying the storage status of the waste tape in the storage unit 53 and stopping the operation of the vacuum pump 52 by the operation of the operator.

[0020] As shown in FIG. 7, the plurality of conveyor devices 41 are controlled by a control device 48 provided in the corresponding module M. In the present embodiment, the control device 48 controls the entire module in addition to the conveyor device 41. For example, the control device 48 that controls the component mounter 20 as the module M controls the substrate conveyance device 23, the head 24, and the head movement mechanism 25 in addition to the conveyor device 41. Further, the vacuum pump 52 is controlled by a control device 58 provided in the waste tape collection unit 50.

[0021] Also, as shown in FIG. 7, the control device 48 of the conveyor device 41 at the most downstream in the waste tape conveyance direction among the plurality of conveyor devices 41 and the control device 58 of the waste tape collection unit 50 are connected to each other via an input / output interface. The control device 48 of the conveyor device 41 at the most downstream in the waste tape conveyance direction outputs a suction request signal for requesting suction of the waste tape (activation of the vacuum pump 52) to the control device 58 of the waste tape collection unit 50 via the output interface. Further, the control device 48 of the conveyor device 41 at the most downstream in the waste tape conveyance direction inputs a suction in progress signal indicating that the waste tape is being suctioned from the control device 58 of the waste tape collection unit 50 via the input interface. On the other hand, the control device 58 of the waste tape collection unit 50 inputs a suction request signal from the control device 48 of the conveyor device 41 at the most downstream in the waste tape conveyance direction via the input interface, and outputs a suction in progress signal to the control device 48 via the output interface. In the present embodiment, the output of the suction request signal is performed by either an on (high level) signal or an off (low level) signal. That is, the suction request signal is turned on when suction of the waste tape is requested, and turned off when suction of the waste tape is not requested. Also, the output of the suction in progress signal is similarly performed by either an on (high level) signal or an off (low level) signal. That is, the suction in progress signal is turned on when the vacuum pump 52 is operating (suctioning the waste tape), and turned off when the vacuum pump 52 is stopped (stopping suction of the waste tape). The suction in progress signal is turned off (low level) even when the power of the waste tape collection unit 50 is turned off, the operator instructs to stop suction of the waste tape, or suction of the waste tape is stopped due to some abnormality.

[0022] Also, as shown in FIG. 7, the control devices 48 of the conveyor devices 41 adjacent to each other among the plurality of conveyor devices 41 are also connected to each other via an input / output interface. The control device 48 of the conveyor device 41 on the upstream side in the waste tape conveyance direction among the conveyor devices 41 adjacent to each other outputs a conveyance request signal for requesting the conveyance of the waste tape to the control device 48 of the conveyor device 41 on the downstream side in the waste tape conveyance direction via the output interface. Further, the control device 48 of the conveyor device 41 on the upstream side in the waste tape conveyance direction inputs a conveyance-in-progress signal indicating that the waste tape is being conveyed from the control device 48 of the conveyor device 41 on the downstream side in the waste tape conveyance direction via the input interface. On the other hand, the control device 48 of the conveyor device 41 on the downstream side in the waste tape conveyance direction inputs the conveyance request signal from the control device 48 of the conveyor device 41 on the upstream side in the waste tape conveyance direction via the input interface, and outputs the conveyance-in-progress signal to the control device 48 of the conveyor device 41 on the upstream side in the waste tape conveyance direction via the output interface. In the present embodiment, the output of the conveyance request signal is performed by either an on (high level) signal or an off (low level) signal. That is, the conveyance request signal is set to on when requesting the conveyance of the waste tape, and set to off when not requesting the conveyance of the waste tape. Also, the output of the conveyance-in-progress signal is similarly performed by either an on (high level) signal or an off (low level) signal. That is, the conveyance-in-progress signal is set to on when the conveyor device 41 is in operation (conveying the waste tape), and set to off when the conveyor device 41 is stopped (stopping the conveyance of the waste tape). The conveyance-in-progress signal is set to off (low level) even when the power of the module M provided with the corresponding conveyor device 41 is turned off or the conveyance of the waste tape is stopped due to some abnormality.

[0023] The following description is about the operation of the waste tape conveyance device 40 configured in this way. FIG. 8 is a flowchart showing an example of a non-innermost downstream conveyor drive control routine. This routine is repeatedly executed by each control device 48 of the conveyor devices 41 other than the conveyor device 41 at the innermost downstream in the waste tape conveyance direction (non-innermost downstream in the waste tape conveyance direction) among the plurality of conveyor devices 41 at predetermined intervals (for example, every few msec or every several tens of msec).

[0024] When the non-lowermost conveyor drive control routine is executed, the control device 48 first determines whether or not a substrate S has come to the component mounter 20 including the conveyor device 41 to be controlled (step S100). If it is determined that the substrate S has not come, it is determined whether or not that state has continued for a predetermined time (for example, several seconds or several tens of seconds) or more (step S110). These determinations are to determine whether or not waste tape is discharged onto the own conveyor (whether or not the waste tape generation condition is satisfied). That is, when the substrate S comes, the component mounter 20 takes out the component P from the tape T supplied from the feeder 26 and mounts it on the substrate S. The waste tape from which the component P has been taken out is cut by the tape cutter 32 and discharged onto the own conveyor. Therefore, the control device 48 can determine whether or not waste tape is discharged onto the own conveyor by determining whether or not the substrate S has come to the component mounter 20. When the control device 48 determines that the substrate S has not come and that state has continued for a predetermined time or more, that is, when it is determined that the waste tape generation condition is not satisfied, it is determined whether or not the conveyance request signal input from the conveyor device 41 (also referred to as the upstream conveyor) adjacent to the upstream side in the waste tape conveyance direction is in the ON (high level) state (step S120).

[0025] When the control device 48 determines that the substrate S has arrived, or determines that the substrate S has not arrived but the state has not continued for a predetermined time or more, or determines that the conveyance request signal input from the upstream conveyor is on, it determines whether the waste tape generation condition is satisfied or whether the conveyance of the waste tape is requested from the upstream conveyor, and turns on (sets to a high level) the conveyance request signal output to the conveyor device 41 (also referred to as the downstream conveyor) adjacent to the downstream side in the waste tape conveyance direction (step S130). Then, the control device 48 determines whether the conveyance-in progress signal input from the downstream conveyor is on (step S140). When the control device 48 determines that the conveyance-in progress signal input from the downstream conveyor is on, it determines whether its own conveyor is in the process of conveyance (operating) (step S150). When the control device 48 determines that its own conveyor is not in the process of conveying the waste tape, it starts the conveyance of its own conveyor (step S160), turns on the conveyance-in progress signal output to the upstream conveyor (step S170), and ends this routine. On the other hand, when the control device 48 determines that its own conveyor is in the process of conveyance, it skips step S160, turns on the conveyance-in progress signal output to the upstream conveyor (step S170), and ends this routine. In this way, when the waste tape generation condition is satisfied or the conveyance request signal input from the upstream conveyor becomes on, the own conveyor turns on the conveyance request signal output to the downstream conveyor, and when the conveyance-in progress signal input from the downstream conveyor becomes on, it starts the conveyance of the waste tape and turns on the conveyance-in progress signal output to the upstream conveyor.

[0026] When the control device 48 determines in steps S100 to S120 that the state where the substrate S has not arrived continues for a predetermined time or more and the transfer request signal input from the upstream conveyor is in the OFF state, the control device 48 sets the transfer request signal output to the downstream conveyor to OFF (step S180). Then, the control device 48 determines whether its own conveyor is in the process of transfer (operating) (step S190). When the control device 48 determines that its own conveyor is in the process of transfer, it stops the transfer of its own conveyor (step S200), turns off the transfer-in-progress signal output to the upstream conveyor (step S210), and ends this routine. On the other hand, when the control device 48 determines that its own conveyor is not in the process of transfer, it skips step S200, turns off the transfer-in-progress signal output to the upstream conveyor (step S210), and ends this routine. That is, when the waste tape generation condition is not satisfied and the transfer request signal input from the upstream conveyor is in the OFF state, the own conveyor turns off the transfer request signal output to the downstream conveyor, stops the transfer of the waste tape, and turns off the transfer-in-progress signal output to the upstream conveyor.

[0027] When the control device 48 determines in step S140 that the conveyance-in progress signal from the downstream conveyor is in the OFF state, it determines whether its own conveyor is in the process of conveyance (operating) (step S190). Then, when the control device 48 determines that its own conveyor is in the process of conveyance, it stops the conveyance of its own conveyor (step S200), turns off the conveyance-in progress signal output to the upstream conveyor (step S210), and ends this routine. On the other hand, when the control device 48 determines that its own conveyor is not in the process of conveyance, it skips step S200, turns off the conveyance-in progress signal output to the upstream conveyor (step S210), and ends this routine. That is, even if the own conveyor turns on the conveyance request signal output to the downstream conveyor, if the conveyance-in progress signal input from the downstream conveyor is not in the ON state, the conveyance of the waste tape is not performed. As a result, since the own conveyor does not convey the waste tape when the downstream conveyor is stopped, it is possible to prevent the waste tape from being displaced to one location and overflowing from the own conveyor. As described above, the conveyance-in progress signal is turned off even when the power supply of the downstream conveyor (module M) is turned off or some abnormality occurs. Therefore, the own conveyor can also appropriately respond to the power-off of the downstream conveyor and the occurrence of an abnormality.

[0028] Figure 9 is a flowchart showing an example of a most downstream conveyor drive control routine. This routine is repeatedly executed at predetermined intervals (for example, every few msec or every several tens of msec) by the control device 48 of the conveyor device 41 at the most downstream in the waste tape conveyance direction among the plurality of conveyor devices 41. For the same processes as those in FIG. 8 among the processes in FIG. 9, the same step numbers are assigned, and the detailed description thereof is omitted.

[0029] In the lowermost conveyor drive control routine, when the control device 48 determines in steps S100 to S120 that the substrate S has arrived, or determines that the substrate S has not arrived but the state has not continued for a predetermined time or more, or determines that the transfer request signal input from the upstream conveyor is in the ON state, it turns on (sets to a high level) the suction request signal output to the control device 58 of the waste tape collection unit 50 (step S130B). The control device 58 that has received the ON-state suction request signal starts suction of the waste tape by driving the vacuum pump 52 and turns on the suction-in progress signal output to the conveyor device 41 adjacent to the waste tape collection unit 50. Then, the control device 48 determines whether the suction-in progress signal input from the control device 58 of the waste tape collection unit 50 is in the ON state (step S140B). When the control device 48 determines that the suction-in progress signal input from the control device 58 of the waste tape collection unit 50 is in the ON state, if its own conveyor is not in the process of conveying (operating) (step S150), it starts the conveyance of its own conveyor (step S160), turns on the conveyance-in progress signal output to the upstream conveyor (step S170), and ends this routine. In this way, the conveyor at the lowermost end in the waste tape conveyance direction turns on the suction request signal output to the control device 58 of the waste tape collection unit 50, waits for the suction-in progress signal input from the control device 58 to be in the ON state, starts the conveyance of the waste tape, and turns on the conveyance-in progress signal output to the upstream conveyor.

[0030] When the control device 48 determines in steps S100 to S120 that the state where the substrate S has not arrived continues for a predetermined time or longer and the transfer request signal input from the upstream conveyor is in the OFF state, it turns off the suction request signal output to the control device 58 of the waste tape collection unit 50 (step S180B). The control device 58 that has received the OFF-state suction request signal stops the drive of the vacuum pump 52 and ends the suction of the waste tape. As a result, the useless drive of the vacuum pump 52 can be suppressed, and the suppression of useless energy consumption and the reduction of noise can be achieved. Then, if the own conveyor is in the process of transfer (step S190), the control device 48 stops the transfer of the own conveyor (step S200), turns off the transfer-in-progress signal output to the upstream conveyor (step S210), and ends this routine. That is, when the waste tape generation condition is not satisfied and the transfer request signal input from the upstream conveyor is in the OFF state, the own conveyor at the most downstream in the waste tape transfer direction turns off the suction request signal output to the waste tape collection unit 50, stops the transfer of the waste tape, and turns off the transfer-in-progress signal output to the upstream conveyor.

[0031] When the control device 48 determines in step S140B that the suction signal input from the control device 58 of the waste tape collection unit 50 is in the off state, if its own conveyor is in the process of conveying (step S190), it stops the conveyance of its own conveyor (step S200), turns off the conveyance signal output to the upstream conveyor (step S210), and ends this routine. That is, even if the suction request signal output to the waste tape collection unit 50 is turned on, if the suction center signal input from the waste tape collection unit 50 is not in the on state, the waste tape is not conveyed. As a result, since the own conveyor does not convey the waste tape when the waste tape collection unit 50 (vacuum pump 52) is stopped, it is possible to prevent the waste tape from shifting to one place and overflowing from the own conveyor. As described above, the suction signal is turned off even when the power of the waste tape collection unit 50 is turned off, the operator manually instructs to stop the suction of the waste tape, or the suction of the waste tape is stopped due to some abnormality. Therefore, the own conveyor can appropriately respond to the power-off of the waste tape collection unit 50, the manual suction stop, and the occurrence of an abnormality.

[0032] FIG. 10 is an explanatory diagram showing the operation state of the conveyor device 41 of the present embodiment. For convenience of explanation, in the figure, the component mounting lines are configured such that the first module M1 and the second module M2 are arranged in order from the upstream side in the substrate conveyance direction (downstream side in the waste tape conveyance direction). When a new substrate S comes, if the waste tape generation condition of the first module M1 is satisfied, the suction request signal output to the waste tape collection unit 50 is turned on. When the waste tape collection unit 50 receives the on-state suction request signal from the first module M1, it starts sucking the waste tape and turns on the suction-in progress signal output to the first module M1. When the first module M1 receives the on-state suction-in progress signal from the waste tape collection unit 50, it starts conveying the waste tape and turns on the conveyance-in progress signal output to the second module M2 upstream in the waste tape conveyance direction. Next, when the substrate S carried out from the first module M1 comes, if the waste tape generation condition of the second module M2 is satisfied, the conveyance request signal output to the first module M1 downstream in the waste tape conveyance direction is turned on. Since the second module M2 receives the on-state conveyance-in progress signal from the first module M1, it starts conveying the waste tape. In this way, the waste tape conveyance device 40 sequentially conveys the waste tape generated along with the mounting operations of the respective modules M1 and M2 (component mounting machines 20) to the waste tape collection unit 50. Then, when the final substrate S is carried out from the first module M1 and a predetermined time has elapsed, the satisfaction of the waste tape generation condition of the first module M1 is released. However, since a substrate S has come to the second module M2 upstream in the waste tape conveyance direction and the on-state conveyance request signal has been input to the first module M1 from the second module M2, the first module M1 continues to convey the waste tape. When the final substrate S is carried out from the second module M2 and a predetermined time has elapsed, the satisfaction of the waste tape generation condition of the second module M2 is released. The second module M2 stops conveying the waste tape and turns off the conveyance request signal output to the first module M1. When the first module M1 receives the off-state conveyance request signal from the second module M2, it stops conveying the waste tape, turns off the conveyance-in progress signal output to the second module M2, and turns off the suction request signal output to the waste tape collection unit 50.When the waste tape collection unit 50 receives a suction request signal that is off from the first module M1, it stops sucking the waste tape and turns off the suction-in progress signal output to the first module M1.

[0033] The following explanation is about the operation of the component mounter 20 when the waste tape collection unit 50 or the conveyor device 41 stops during the implementation operation. FIG. 11 is a flowchart showing an example of an implementation operation stop control routine executed by the control device 48 of each component mounter 20. This routine is repeatedly executed at predetermined intervals (for example, every few msec or every several tens of msec).

[0034] When the implementation operation stop control routine is executed, the control device 48 first determines whether it is in the implementation operation including the suction operation (step S300). If the control device 48 determines that it is not in the implementation operation, it ends this routine as it is. On the other hand, if the control device 48 determines that it is in the implementation operation, it determines whether the waste tape collection unit 50 is stopped (step S310) and whether the waste tape conveyance device 40 (conveyor device 41) is stopped (step S320), respectively. If the control device 48 determines that the waste tape collection unit 50 is not stopped and the waste tape conveyance device 40 is not stopped, it resets timer C to the value 0 (step S330) and ends this routine. On the other hand, if the control device 48 determines that the waste tape collection device 50 is stopped or the waste tape conveyance device 40 (conveyor device 41) is stopped, it determines whether timer C is at the value 0 (step S340). If the control device 48 determines that timer C is at the value 0, it starts the measurement of timer C (step S350). If it determines that timer C is not at the value 0, since the measurement of timer C has already started, it skips step S350. Then, the control device 48 determines whether timer C is greater than the threshold value Cref (step S360). Here, timer C estimates the amount of waste tape generated along with the suction operation. The threshold value Cref is the allowable capacity to prevent the waste tape from overflowing from the self-conveyor even if the waste tape is discharged to the stopped self-conveyor, and is predetermined according to the size of the self-conveyor and the like. If the control device 48 determines that timer C is less than or equal to the threshold value Cref, it ends this routine while continuing the implementation operation. If it determines that timer C is greater than the threshold value Cref, it stops the implementation operation (step S370) and ends this routine. In this way, when the waste tape collection device 50 or the waste tape conveyance device 40 (conveyor device 41) stops during the implementation operation, the component mounting device 20 continues the implementation operation until timer C reaches the threshold value Cref (until a predetermined time elapses), and stops the implementation operation when timer C reaches the threshold value Cref. Thereby, the component mounting system 10 can more surely prevent the waste tape from overflowing from the conveyor device 41 while being conveyed to the waste tape collection unit 50.Further, the component mounting system 10 can improve production efficiency as compared with a system that immediately stops the component mounting operation when the waste tape collection unit 50 stops or any of the conveyor devices 41 stops during the component mounting operation.

[0035] Here, the correspondence between the main elements of the embodiment and the main elements described in the claims will be described. That is, the feeder 26 corresponds to the feeder, the substrate transfer device 23 corresponds to the substrate transfer device, the tape cutter 32 corresponds to the cutting device, the component mounter 20 corresponds to the component mounter, the component mounting system 10 corresponds to the component mounting system, the conveyor device 41 corresponds to the conveyor device, and the waste tape collection unit 50 corresponds to the waste tape collection section.

[0036] The waste tape conveying device 40 of the embodiment described above conveys the waste tape discharged from each component mounter 20 constituting the component mounting line to the waste tape recovery unit 50 provided at its conveying end. This waste tape conveying device 40 has a conveyor device 41 provided independently for each component mounter 20. Among the plurality of conveyor devices 41, when the downstream conveyor is adjacent to the conveyor device 41 and the waste tape generation condition is satisfied or the conveyance request signal input from the upstream conveyor is in the on state, the conveyance request signal output to the downstream conveyor is turned on, and when the conveyance in progress signal input from the downstream conveyor is in the on state, the conveyance starts. Also, when the downstream conveyor is adjacent to the conveyor device 41 and the waste tape generation condition is not satisfied and the conveyance request signal input from the upstream conveyor is in the off state, the conveyance is stopped and the conveyance request signal output to the downstream conveyor is turned off. On the other hand, among the plurality of conveyor devices 41, when the conveyor device 41 adjacent to the waste tape recovery unit 50 and the waste tape generation condition is satisfied or the conveyance request signal input from the upstream conveyor is in the on state, the suction request signal output to the waste tape recovery unit 50 is turned on, and when the suction in progress signal input from the waste tape recovery unit 50 is in the on state, the conveyance starts. Also, when the conveyor device 41 adjacent to the waste tape recovery unit 50 and the waste tape generation condition is not satisfied and the conveyance request signal input from the upstream conveyor is in the off state, the conveyance is stopped and the suction request signal output to the waste tape recovery unit 50 is turned off. Thereby, the waste tape conveying device 40 can be prevented from operating, for example, when the waste tape recovery unit 50 is in a state where it cannot recover the waste tape or when the conveyor device 41 on the downstream side in the waste tape conveyance direction is stopped. As a result, the waste tape conveying device 40 can suppress the waste tape from overflowing from the conveyor device 41 while being conveyed to the waste tape recovery unit 50. Also, the waste tape conveying device 40 can achieve energy savings compared to the case where the plurality of conveyor devices 41 are constantly operating.

[0037] Also, when the waste tape collection unit 50 adjacent to the conveyor device 41 stops during conveyance and the in-conveyance signal turns off, the conveyor device 41 stops the conveyance and turns off the in-conveyance signal output to the upstream conveyor. As a result, the conveyor device 41 can appropriately respond even if the waste tape collection unit 50 stops during conveyance.

[0038] Furthermore, when the downstream conveyor adjacent to the conveyor device 41 stops the conveyance and the in-conveyance signal turns off during conveyance, the conveyor device 41 stops the conveyance and turns off the in-conveyance signal output to the upstream conveyor. As a result, the conveyor device 41 can appropriately respond even if the downstream conveyor stops during conveyance.

[0039] Note that the present disclosure is not limited to the above-described embodiments at all, and it goes without saying that various aspects can be implemented as long as they belong to the technical scope of the present disclosure.

[0040] For example, in the above-described embodiment, the waste tape conveying device 40 conveys the waste tape in the direction opposite to the substrate conveying direction. However, the waste tape conveying device 40 may convey the waste tape in the same direction as the substrate conveying direction. In this case, the waste tape collection unit 50 is installed adjacent to the module M at the end of the substrate conveying direction. FIG. 12 is an explanatory diagram showing the operation state of the conveyor device 41 of the modified example. For convenience of explanation, the component mounting lines in the figure are configured by arranging the first module M1 and the second module M2 in order from the upstream side in the substrate conveying direction (the upstream side in the waste tape conveying direction). When a new substrate S arrives, the first module M1 turns on the conveyance request signal output to the second module M2 when the waste tape generation condition of the first module M1 is satisfied. When the second module M2 receives the on-state conveyance request signal from the first module M1, it turns on the suction request signal output to the waste tape collection unit 50. When the waste tape collection unit 50 receives the on-state suction request signal from the second module M2, it starts sucking the waste tape and turns on the suction-in progress signal output to the second module M2. When the second module M2 receives the on-state suction-in progress signal from the waste tape collection unit 50, it starts conveying the waste tape and turns on the conveyance-in progress signal output to the first module M1. When the first module M1 receives the on-state conveyance-in progress signal from the second module M2, it starts conveying the waste tape. In this way, the waste tape conveying device 40 sequentially conveys the waste tape generated along with the mounting operation of each module M (component mounter 20) to the waste tape collection unit 50. Then, when the final substrate S is carried out from the first module M1 and a predetermined time has elapsed, the establishment of the waste tape generation condition of the first module M1 is released. When the establishment of the waste tape generation condition is released, the first module M1 stops conveying the waste tape and turns off the conveyance request signal output to the second module M2. Also, when the final substrate S is carried out from the second module M2 and a predetermined time has elapsed, the establishment of the waste tape generation condition of the second module M2 is released.Since the second module M2 receives the off-state conveyance request signal from the first module M1, when the condition for generating waste tape in the second module M2 is released, the conveyance of the waste tape is stopped, and the suction request signal output to the waste tape collection unit 50 is turned off. When the waste tape collection unit 50 receives the off-state suction request signal from the second module M2, the suction of the waste tape is stopped and the suction-in signal output to the second module M2 is turned off.

[0041] In the above-described embodiment, when the waste tape collection unit 50 or the conveyor device 41 stops during the mounting operation, each component mounter 20 continues the mounting operation until a predetermined time elapses, and stops the mounting operation when the predetermined time elapses. However, the following may also be adopted. FIG. 13 is a flowchart showing an example of a modified mounting operation stop control routine executed by the control device 48 of each component mounter 20. For the processes in FIG. 13 that are the same as those in FIG. 11, the same step numbers are assigned and the description thereof is omitted.

[0042] When the implementation operation stop control routine is executed, the control device 48 determines that it is in the implementation operation in step S300. If it determines in steps S310 and S320 that the waste tape collection unit 50 is not stopped and the waste tape transport device 40 (conveyor device 41) is not stopped, it resets the waste tape discharge amount Q to the value 0 (step S330B). Also, during the implementation operation, when the control device 48 determines that the waste tape collection device 50 is stopped or the waste tape transport device 40 (conveyor device 41) is stopped, it determines whether tape feeding by the feeder 26 has occurred (step S340B). As described above, when tape feeding by the feeder 26 occurs, the tape cutting machine 32 cuts the tape from which the component has been removed, generating waste tape. When the control device 48 determines that tape feeding has occurred, it integrates the tape discharge amount Q (step S350B). When it determines that tape feeding has not occurred, it skips step S350B. The integration of the tape discharge amount Q is performed by integrating a certain amount each time tape feeding occurs. The integration amount may be increased or decreased according to the tape feeding amount and the type of tape. Then, the control device 48 determines whether the tape discharge amount Q is greater than the threshold value Qref (step S360B). The threshold value Qref is the allowable capacity to prevent waste tape from overflowing from the stopped conveyor device 41 even if waste tape is discharged to it. When the control device 48 determines that the tape discharge amount Q is less than or equal to the threshold value Qref, it ends this routine while continuing the implementation operation. When it determines that the tape discharge amount Q is greater than the threshold value Qref, it stops the implementation operation (step S370) and ends this routine.

[0043] Also, in the above-described embodiment, the waste tape generation condition is established based on the fact that the substrate S has been loaded, and the establishment is canceled when the state where the next substrate S has not been loaded continues for a predetermined time after the substrate S has been unloaded. However, as long as the waste tape generation can be detected or estimated, any method may be adopted, such as the waste tape generation condition being established based on the operation of the tape cutting machine 32 and the establishment being canceled when the state where the tape cutting machine 32 has stopped operating continues for a predetermined time.

[0044] Also, in the above-described embodiment, the waste tape collection unit 50 is configured to collect the waste tape conveyed by the waste tape conveyance device 40 into the storage unit 53 by suction with a vacuum pump 52. However, the waste tape collection unit may include a collection box installed at the conveyance end of the waste tape conveyance device 40, and an operator may collect the waste tape collected in the collection box. Further, the waste tape collection unit may include an automated guided vehicle equipped with a collection box mounted at the conveyance end of the waste tape conveyance device 40, and the automated guided vehicle may automatically collect the waste tape collected in the collection box. Alternatively, the waste tape collection unit may include a conveyor device installed at the conveyance end of the waste tape conveyance device 40, and the waste tape may be automatically collected by the conveyor device. Thus, the waste tape collection unit may adopt any configuration as long as it can collect the waste tape conveyed by the waste tape conveyance device 40. Note that, in any mode, the waste tape collection unit outputs a signal indicating whether the waste tape can be collected to the conveyor device at the most downstream in the waste tape conveyance direction.

[0045] Note that, in the above-described embodiment, the collection location of the waste tape is one, but it is not limited thereto. When the line length of the component mounting line is long, the collection locations of the waste tape may be plural. For example, the conveyor device 41 provided in the component mounter 20 on the upstream side in the substrate conveyance direction from near the center of the line length is configured such that the waste tape conveyance direction is opposite to the substrate conveyance direction (upstream direction of the line), and the conveyor device 41 provided in the component mounter 20 on the downstream side in the substrate conveyance direction from near the center of the line length is configured such that the waste tape conveyance direction is the same as the substrate conveyance direction (downstream direction of the line). In this case, the collection locations of the waste tape are two, i.e., the collection location at the head of the line and the collection location at the end of the line.

Industrial Applicability

[0046] The present disclosure can be used in the manufacturing industry of waste tape conveyance devices, component mounting systems, and the like.

Explanation of Signs

[0047] 10 Component mounting system, 12 Printing machine, 20 Component mounter, 21 Housing, 22 Feeder table, 23 Substrate conveyor, 24 Head, 25 Head moving mechanism, 26 Feeder, 27 Reel, 30 Waste tape discharging device, 31 Introduction duct, 32 Tape cutter, 33 Discharge duct, 40 Waste tape conveyor, 41 Conveyor device, 48 Control device, 50 Waste tape collection unit, 51 Suction part, 52 Vacuum pump, 53 Storage part, 53a Handle, 54 Display operation part, 58 Control device, S Substrate, T Tape, P Component.

Claims

1. a waste tape transport device that transports waste tape discharged from each component mounter to a waste tape recovery section provided at the transport end of the waste tape, the waste tape transport device comprising: a feeder that feeds out a tape containing a plurality of components to supply the components; a board transporting device that transports a board; a mounting head that removes the components from the tape fed out by the feeder and mounts them on the board transported by the board transporting device; and a cutting device that cuts the tape fed out by the feeder after the components have been removed and discharges it as waste tape; a plurality of conveyor devices provided independently for at least each of the component mounters, each of which is configured to be capable of transferring the waste tape to another adjacent conveyor device on the downstream side in a waste tape transport direction or to the waste tape recovery unit; When a predetermined waste tape generation condition for discharging the waste tape from a corresponding component mounter is satisfied or an operation request is input from another adjacent conveyor device on the upstream side of the waste tape transport direction, the conveyor device among the plurality of conveyor devices outputs an operation request to the other adjacent conveyor device on the downstream side of the waste tape transport direction, and when the operation of the other adjacent conveyor device on the downstream side of the waste tape transport direction is confirmed, the conveyor device starts operation, and when the waste tape generation condition is not satisfied during operation and an operation request is not input from the other adjacent conveyor device on the upstream side of the waste tape transport direction, the conveyor device stops operation and cancels the operation request to the other adjacent conveyor device on the downstream side of the waste tape transport direction, Among the plurality of conveyor devices, a conveyor device having the waste tape recovery unit adjacent to it on the downstream side in the waste tape transport direction starts operation when the waste tape generation condition is satisfied or an operation request is input from another conveyor device adjacent to it on the upstream side in the waste tape transport direction, and when the waste tape recovery unit is in a recoverable state in which it can recover the waste tape, and stops operation when the waste tape generation condition is not satisfied during operation and an operation request is not input from another conveyor device adjacent to it on the upstream side in the waste tape transport direction. Waste tape transport device.

2. 2. The waste tape conveying device according to claim 1, a conveyor device among the plurality of conveyor devices, the conveyor device having the waste tape recovery unit adjacent thereto on the downstream side in the waste tape transport direction, stops operating when the waste tape recovery unit reaches an unrecoverable state in which the waste tape cannot be recovered during operation; Waste tape transport device.

3. 3. The waste tape conveying device according to claim 1, a conveyor device among the plurality of conveyor devices that is adjacent to another conveyor device on the downstream side in the waste tape transport direction stops operating when the other conveyor device adjacent to the downstream side in the waste tape transport direction stops operating during operation; Waste tape transport device.

4. 4. The waste tape conveying device according to claim 1, The waste tape generation condition is established based on the board being carried in, and is released from being established based on the board being carried out and a state in which no new board is carried in continues for a predetermined period of time. Waste tape transport device.

5. a feeder that feeds out a tape containing a plurality of components to supply the components; a board transport device that transports a board; a mounting head that removes the components from the tape fed out by the feeder and mounts them on the board transported by the board transport device; and a cutting device that cuts the tape fed out by the feeder after the components have been removed and discharges it as waste tape. a component mounting line in which a plurality of component mounters having the same are arranged in series; A waste tape conveying device according to any one of claims 1 to 5, A component mounting system comprising: When the waste tape recovery unit becomes unable to recover the waste tape during a component mounting operation or when the operation of any one of the plurality of conveyor devices stops, the component mounting line continues the component mounting operation until a predetermined time has elapsed, and stops the component mounting operation when the predetermined time has elapsed. Component mounting system.

6. a component mounting line in which a plurality of component mounters are arranged in series, the component mounter including a feeder that feeds out a tape containing a plurality of components to supply the components, a board transporting device that transports a board, a mounting head that removes the components from the tape fed out by the feeder and mounts them on the board transported by the board transporting device, and a cutting device that cuts the tape fed out by the feeder after the components have been removed and discharges it as waste tape; A waste tape conveying device according to any one of claims 1 to 5, A component mounting system comprising: When the waste tape recovery unit becomes unable to recover the waste tape during a component mounting operation or when operation of any of the plurality of conveyor devices stops, the component mounting line continues the component mounting operation until an amount of the waste tape discharged from any of the plurality of component mounters reaches a predetermined amount, and stops the component mounting operation when the amount of the waste tape discharged reaches the predetermined amount. Component mounting system.

Images