WO2021130885A1 - Component mounting system, tape collection device, and tape collection method - Google Patents

Abstract

An endless collection belt 81 that includes a top belt surface 81u and that is extended over a plurality of component mounting machines 1 is provided. Carrier tapes disposed of from the component mounting machines 1 are caught by the top belt surface 81u of the collection belt 81. Subsequently, the carrier tapes are conveyed in a collection direction Dc together with the top belt surface 81u, and is collected in a collection container 89. That is to say, a conveyor is not provided to each of the plurality of component mounting machines 1, but the single collection belt 81 is provided to the plurality of component mounting machines 1. The carrier tapes disposed of from the component mounting machines 1 are collected in the collection container 89 by the single collection belt 81. Therefore, dropping of the carrier tapes associated with a delivery of the carrier tapes between conveyors does not occur. Accordingly, it is possible to collect the carrier tapes in the collection container 89 while suppressing dropping of the carrier tapes disposed of from the plurality of component mounting machines 1.

Description

Component mounting system, tape recovery device and tape recovery method

The present invention relates to a technique of mounting a supplied component on a substrate by sending out a tape containing the component by a feeder, and particularly to a technique of discarding the tape from which the component has been taken out.

Patent Documents 1 and 2 disclose a technique for collecting tape used for component mounting in a component mounting machine. In particular, in Patent Document 1, each of the plurality of component mounting machines is provided with a conveyor for transporting tape, and the plurality of conveyors are lined up in series. Then, the plurality of component mounting machines discard the tape on the conveyors provided therein, and the tape is transferred between the conveyors and collected in the collection container.

Japanese Patent No. 6267216 WO2017 / 026029

By the way, in the configuration in which the tape is delivered by the conveyors provided in each of the plurality of component mounting machines as in Patent Document 1, the tape may fall when the tape is delivered between the conveyors.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a technique capable of collecting tapes while suppressing falling of discarded tapes from each of a plurality of component mounting machines.

The component mounting system according to the present invention circulates a plurality of component mounting machines for mounting components on a substrate to be sequentially transported, an endless belt including a transport surface extended over the plurality of component mounting machines, and a belt. The component mounting machine is provided with a drive unit that drives the transfer surface in the transfer direction, and the component mounting machine transfers a feeder that supplies the component by sending a tape for accommodating the component and a component supplied by the feeder to the substrate. It has a mounting head and a tape disposal section for discarding the tape from which parts have been taken out. The belt receives the tape discarded from the tape disposal section on the transport surface, and the tape received on the transport surface is supported by the transport surface. It is transported in the transport direction and collected.

The tape collecting device according to the present invention transports an endless belt including a transport surface extended over a plurality of component mounting machines for mounting components on a substrate to be sequentially transported, and a transport surface by circulating the belt. The component mounting machine is equipped with a drive unit that drives in a direction, and the component mounting machine has a feeder that supplies components by sending tape for accommodating the components, a mounting head that transfers the components supplied by the feeder to the board, and components are taken out. The belt has a tape disposal section for discarding the scraped tape, and the belt receives the tape discarded from the tape disposal section on the transport surface, and the tape received on the transport surface is transported in the transport direction by the transport surface and collected. Will be done.

The tape collecting method according to the present invention is a transport surface of an endless belt including a transport surface extended over a plurality of component mounting machines for mounting components housed in tape on a substrate to be sequentially transported. It includes a step of receiving the tape discarded from the component mounting machine, a step of driving the transport surface in the transport direction by circulating a belt, and a step of collecting the tape received on the transport surface in the transport direction.

In the present invention (part mounting system, tape collecting device, and tape collecting method) configured in this way, an endless belt including a transport surface extended over a plurality of component mounting machines is provided and discarded from the component mounting machine. The tape is received by the transport surface of the belt. Then, this tape is transported in the transport direction together with the transport surface and collected. That is, instead of providing a conveyor for each of the plurality of component mounting machines, a single belt is provided for each of the plurality of component mounting machines, and the tape discarded from the component mounting machine is collected by the single belt. .. Therefore, the tape does not fall due to the transfer of the tape between the conveyors. In this way, it is possible to collect the tape while suppressing the fall of the discarded tape from each of the plurality of component mounting machines. Further, since it is not necessary to provide a drive source for each component mounting machine in order to drive the conveyors provided for each of the plurality of component mounting machines, cost and space can be saved.

Further, the drive unit may be configured to have first and second end rollers around which belts are wound at both ends in the transport direction. In such a configuration, the circulation of the belt can be stabilized by supporting it with the first and second end rollers.

Further, the component mounting system may be configured so that the length of the transport surface provided between the first end roller and the second end roller can be changed. Such a configuration is suitable because the length of the transport surface can be changed according to the change in the number of component mounting machines.

The drive unit also has first and second intermediate rollers around which the belt is wound around the first and second end rollers on the opposite side of the transport surface, and the spacing between the first and second intermediate rollers. The belt, which variably supports the first and second intermediate rollers and is circulated by the drive unit, passes through the first end roller, the second end roller, the first intermediate roller and the second intermediate roller in order. Then, of the first and second intermediate rollers, one intermediate roller winds the belt from the inside, the other intermediate roller winds the belt from the outside, and in the transport direction, the first intermediate roller is the first. The second intermediate roller is located closer to the first end roller than the second intermediate roller, and the second intermediate roller is located closer to the second end roller than the first intermediate roller, increasing the distance between the first and second end rollers. The component mounting system may be configured so that the spacing between the first and second intermediate rollers can be reduced / increased in response to the reduction. In such a configuration, it is possible to give an appropriate tension to the belt after changing the length of the conveying surface by the work of changing the distance between the first and second intermediate rollers.

Further, the belt has a plurality of slats arranged along the circulation direction of the belt, and two of the plurality of slats are formed by engaging the connecting shaft with two adjacent slats in the circulation direction. The component mounting system may be configured so that the slats are rotatably connected to each other, while the two slats are separated by removing the connecting shaft from the two slats. In such a configuration, the length of the transport surface can be changed by a work such as changing the number of slats constituting the belt.

Further, the slats have a transport plate having a surface that functions as a transport surface, and two wall plates that are erected from the transport plates on both sides in the width direction orthogonal to the transport direction, and the tape on the surface is walled. The component mounting system may be configured so as to be sandwiched between plates. In such a configuration, the fall of the tape from the slats can be suppressed by the wall plate.

Further, the wall plate may be configured so that the wall plate protrudes from the transport plate in the transport direction and the wall plates of the two slats partially overlap each other. In such a configuration, since there is no gap between the wall plates of the two slats, it is possible to prevent the tape from falling through the gap.

Further, a collection container provided at the downstream end in the transport direction of the belt is further provided, and the tape received on the transport surface is mounted on the component so as to be transported in the transport direction by the transport surface and collected in the recovery container. The system may be configured. As a result, the tape can be reliably collected in the collection container.

Further, the belt from one of the first and second end rollers on the collection container side to the most downstream component mounting machine in the transport direction of the plurality of component mounting machines moves while descending. One roller is placed and the component mounting system is configured such that the recovery container is placed under one roller so that one roller and the recovery container overlap at least partially when viewed from the vertical direction. You may. In such a configuration, it is possible to secure a space for arranging the collection container under the end roller (one roller) on the collection container side.

Further, the component mounting system may be configured to further include a control unit that controls the circulation of the belt by the drive unit according to the amount of tape discarded from the tape disposal unit. In such a configuration, the circulation of the belt can be efficiently performed according to the amount of tape discarded.

Further, when the control unit determines that the amount of tape on the transport surface of the stopped belt has reached a predetermined transport start amount, the control unit configures a component mounting system so that the drive unit starts circulation of the belt. May be good. With such a configuration, unnecessary driving of the belt can be suppressed.

Further, the control unit may configure a component mounting system so as to control the speed at which the belt is circulated to the drive unit according to the amount of tape on the transport surface. In such a configuration, the belt can be driven at an appropriate speed according to the amount of tape on the transport surface.

Further, when the control unit determines that the amount of tape on the transport surface is less than the high-speed transport amount, the belt is circulated to the drive unit at a normal speed, while the amount of tape on the transport surface is greater than or equal to the high-speed transport amount. If it is determined that the belt is circulated to the drive unit at a high speed higher than the normal speed, the component mounting system may be configured. In such a configuration, when the amount of tape on the transport surface increases to exceed the high-speed transport amount, the belt is transported at a high speed, and the collection of the tape on the transport surface is accelerated. This makes it possible to prevent a large amount of tape from accumulating on the transport surface.

Further, when the control unit determines that the amount of tape on the transport surface has reached the disposal prohibited amount, the control unit prohibits the disposal of the tape from the tape disposal unit and increases the speed of circulating the belt to the drive unit. , A component mounting system may be configured. This makes it possible to urgently collect the tape deposited on the transport surface and prevent the tape from overflowing from the belt.

Further, when the control unit determines that the amount of tape on the transport surface has decreased to less than the disposal prohibited amount, the control unit permits the tape to be discarded from the tape disposal unit and reduces the speed at which the belt is circulated to the drive unit. In addition, a component mounting system may be configured. In such a configuration, after the accumulation of the tape on the transport surface is eliminated, appropriate control such as discarding the tape from the component mounting machine and circulating the belt at an appropriate speed to collect the tape can be executed.

Further, it further has a detection unit that detects the amount of tape on the transport surface, and the control unit configures a component mounting system so as to determine the amount of tape on the transport surface based on the detection result of the detection unit. You may. In such a configuration, the amount of tape on the conveying surface can be accurately determined from the detection result of the detection unit.

Further, the control unit may configure the component mounting system so as to determine the amount of tape on the transport surface from the operating status of the component mounting machine. With such a configuration, the amount of tape on the transport surface can be accurately determined depending on the operating status of the component mounting machine.

Further, the component mounting machine may be configured to have a housing for accommodating the mounting head and a belt support member for supporting the belt passing through the housing. In such a configuration, a long belt having a transport surface over a plurality of component mounting machines can be supported by the belt support member of the component mounting machine, and the belt can be circulated stably.

Further, the component mounting machine further has a housing for accommodating the mounting head and a support leg for supporting the housing with respect to the installation surface of the component mounting machine, and the belt is arranged so as to overlap the feeder when viewed from the vertical direction. The component mounting system may be configured such that the center of the support leg is located on the opposite side of the center of the belt in the direction in which the feeder feeds the tape. In such a configuration, the inside of the housing of the component mounting machine can be efficiently used for arranging the belts, and space can be saved.

Further, openings are provided on both sides of the housing in the transport direction, and the transport surface of the belt is provided so as to penetrate the housing through the openings, and enters the housing through the openings and opens. The component mounting system may be configured to exit the housing via. By providing an opening in the housing of the component mounting machine in this way, it is possible to arrange a belt having a transport surface over a plurality of component mounting machines.

Further, the tape disposal unit may be configured to have a tape guide for guiding the tape to the transport surface of the belt. In such a configuration, the tape discarded from the tape disposal section can be accurately guided to the transport surface of the belt, and the tape can be suppressed from falling.

Further, the component mounting machine further has a reel holding portion for holding the reel around which the tape is wound, and the feeder supplies the parts by feeding the tape pulled out from the reel held in the reel holding portion, and the reel. The retainer may configure the component mounting system to dispose of the used-tape reel on the transport surface of the belt. In such a configuration, it is not necessary for the operator to collect the reels, and the burden on the operator is reduced.

According to the present invention, it is possible to collect the tape in the collection container while suppressing the dropping of the tape discarded from each of the plurality of component mounting machines.

The perspective view which shows the internal structure of the component mounting machine provided in the component mounting system which concerns on this invention. The side view which shows the internal structure of the component mounting machine of FIG. The perspective view which shows the appearance structure of the component mounting system which concerns on this invention. FIG. 3 is a plan view showing an external configuration of the component mounting system of FIG. The front view which shows the appearance structure of the component mounting system of FIG. The plan view which shows the structure of the recovery belt used in the tape recovery device partially. The front view which shows the structure of the recovery belt used in a tape recovery device partially. The block diagram which shows the electrical structure of the component mounting system of FIG. The flowchart which shows an example of tape collection. The figure which shows typically the modification of the structure which changes the length of the upper surface of the belt of a recovery belt.

FIG. 1 is a perspective view showing the internal configuration of the component mounting machine included in the component mounting system according to the present invention, and FIG. 2 is a side view showing the internal configuration of the component mounting machine of FIG. In these figures and the following figures, XYZ Cartesian coordinates consisting of the Z direction parallel to the vertical direction and the X direction and the Y direction parallel to the horizontal direction are appropriately shown. This component mounting machine 1 is a dual lane type provided with two lanes L for transporting a substrate.

The component mounting machine 1 includes a housing 2, and two lanes L are provided so as to penetrate the housing 2 in the X direction (board transport direction). A work position is provided on each lane L in the housing 2, and each of the two lanes L is brought into the work position by a pair of conveyors 12 arranged in parallel in the X direction. And carry out the board from the working position.

Further, the component mounting machine 1 includes an XY drive mechanism 3 and two head units 4 driven by the XY drive mechanism 3 in the housing 2. The XY drive mechanism 3 can independently drive each of the two head units 4 in the X direction and the Y direction. The head unit 4 has a plurality of mounting heads 41 arranged linearly in the X direction. The mounting head 41 has a long shape extending in the Z direction (vertical direction), and parts can be sucked and held by a nozzle detachably attached to the lower end thereof. The head unit 4 is not limited to the in-line type shown here, and may be a rotary type having a plurality of mounting heads 41 arranged in a circumferential shape.

Further, parts supply units 13 are provided on both sides of the two lanes L in the Y direction. A plurality of tape feeders 5 arranged in the X direction are detachably attached to each component supply unit 13, and small pieces such as integrated circuits, transistors, capacitors, etc. are attached to each tape feeder 5. A reel R on which a tape containing (chip electronic components) is stored at predetermined intervals is arranged. The tape feeder 5 has a sprocket that feeds the tape in the feed direction Df parallel to the Y direction, and the tape is moved to the lane L side by intermittently rotating the sprocket to which the tape drawn from the reel R is engaged. Send out at a predetermined pitch. As a result, the parts in the tape are supplied to the parts supply position at the tip of the tape feeder 5. The number of lanes L is not limited to two, and may be one, for example. When one lane L is provided, the component supply unit 13 may be arranged only on one side of the lane L, and the tape collecting device 8 described later may be arranged only on the one side.

On the other hand, the mounting head 41 moves above the tape feeder 5 and attracts the components supplied to the component supply position by the tape feeder 5. Subsequently, the mounting head 41 moves above the substrate held at the working position by the lane L to release the adsorption of the components, thereby mounting the components on the substrate.

Further, the component mounting machine 1 has a reel holding portion 62 provided below the tape feeder 5, and a plurality of reels R arranged in the X direction are held by the reel holding portion 62. In this way, a plurality of reels R are arranged corresponding to the plurality of tape feeders 5, and each tape feeder 5 is loaded with the component supply tape drawn from the corresponding reels R. The reel holding portion 62 includes a mechanism for discarding the reel R from which the component supply tape has been used up along the reel guide 621. Such a disposal mechanism provides parts wound around the axis by, for example, two support members arranged at intervals wider than the axis of the reel R, as shown in the publication of US Publication No. US201803003014. This can be achieved by a configuration that holds the tape. According to this configuration, the axis of the reel R from which the component supply tape has come off comes out from between the two support members, and the reel R falls along the reel guide 621 due to its own weight.

The parts supply tape is a conventionally well-known embossed tape, and has a configuration in which a cover tape is attached to the upper surface of the carrier tape. The carrier tape stores the parts in each of a plurality of storage pockets (parts storage parts) arranged in an example at equal pitches, and the cover tape is attached to the upper surface of the carrier tape to cover the parts in the storage pockets. Then, the tape feeder 5 supplies the components in the carrier tape to the component supply position by peeling the cover tape from the carrier tape and then transporting the carrier tape to the component supply position.

Further, the component mounting machine 1 has a tape disposal unit 7 located below the tape feeder 5 and a tape slope 63 extending in the Z direction between the tape feeder 5 and the tape disposal unit 7 in the housing 2. Be prepared. The tape slope 63 guides the carrier tape discharged from the tape feeder 5 to the tape disposal unit 7, and the tape disposal unit 7 cuts and discards the carrier tape guided by the tape slope 63 from the tape feeder 5.

The tape disposal unit 7 has a cutter 72, a receiving member 73 that receives the cutter 72, and an air cylinder 74 that drives the cutter 72 in the Y direction. The cutter 72 and the receiving member 73 are arranged so as to face each other in the Y direction, and the carrier tape from the tape feeder 5 enters between the cutter 72 and the receiving member 73. The air cylinder 74 reciprocates the cutter 72 in the Y direction between a cutting position where the tip of the cutter 72 abuts on the receiving member 73 and a retracted position where the tip of the cutter 72 separates from the receiving member 73. Therefore, when the cutter 72 is in the retracted position, the carrier tape discharged from the tape feeder 5 passes between the cutter 72 and the receiving member 73 and hangs down below the cutter 72. Subsequently, when the cutter 72 moves to the cutting position, the carrier tape sandwiched between the tip of the cutter 72 and the receiving member 73 is cut, and the carrier tape on the lower end side of the cut portion by the cutter 72 falls. Further, the exterior member 71 of the tape disposal unit 7 has a tape guide 75 provided below the cutting position of the cutter 72 in the Z direction, and the carrier tape cut by the cutter 72 falls along the tape guide 75. ..

A tape collecting device 8 to be described in detail later is arranged under the tape disposal unit 7, and the carrier tape cut by the cutter 72 in the tape disposal unit 7 is guided by the tape guide 75 to collect the tape. It falls toward the device 8. The tape recovery device 8 has an endless recovery belt 81 extending in the X direction, and the carrier tape falls on the recovery belt 81. The recovery belt 81 is located below the tape feeder 5 and is arranged so as to fit inside the housing 2 while partially overlapping the tape feeder 5 in a plan view from the Z direction.

The reel R discarded along the reel guide 621 also falls on the recovery belt 81 of the tape recovery device 8. That is, the tape collecting device 8 has a function of collecting not only the carrier tape but also the reel R. In the following, the carrier tape and the reel R collected by the tape collecting device 8 will be appropriately referred to as a carrier tape or the like.

Further, the component mounting machine 1 includes a plurality of support legs 14 that support the bottom plate 21 of the housing 2 with respect to the installation surface of the component mounting machine 1. The bottom plate 21 has a flat plate shape and is horizontally supported by the support legs 14. As shown in FIG. 2 showing the side view from the X direction, the center line C14 of some of the support legs 14 located on the leftmost side in FIG. 2 among the plurality of support legs 14 in the Y direction is the recovery belt 81. It is located on the opposite side of the tape feeder 5 from the center line C81 in the feed direction Df. Here, the center line C14 of the support leg 14 is a line passing through the centers of both ends of the support leg 14 in the Y direction, and the center line C81 of the recovery belt 81 is a line passing through the centers of both ends of the recovery belt 81 in the Y direction. Is.

The component mounting system MS according to the present embodiment is provided with a plurality of component mounting machines 1, and a tape collecting device 8 is commonly provided for the plurality of component mounting machines 1. Next, this point will be described. FIG. 3 is a perspective view showing an external configuration of the component mounting system according to the present invention, FIG. 4 is a plan view showing an external configuration of the component mounting system of FIG. 3, and FIG. 5 is an external view of the component mounting system of FIG. FIG. 6 is a front view showing the configuration, FIG. 6 is a plan view partially showing the configuration of the recovery belt used in the tape recovery device, and FIG. 7 is a front view partially showing the configuration of the recovery belt used in the tape recovery device. FIG. 8 is a block diagram showing an electrical configuration of the component mounting system of FIG.

Incidentally, as shown in FIGS. 2 and 4, two tape collecting devices 8 are arranged in the X direction corresponding to the two component supply units 13 provided on both sides in the Y direction in the component mounting machine 1. ing. However, since the configurations of the two tape collecting devices 8 are common, here, one tape collecting device 8 will be mainly described.

As shown in FIG. 3, in the component mounting system MS, the boards are sequentially carried into a plurality of component mounting machines 1 arranged in series in the X direction (board transfer direction), and each component mounting machine 1 is carried in. Execute component mounting on the board that has arrived. On the other hand, the tape recovery device 8 includes an endless recovery belt 81 commonly provided for the plurality of component mounting machines 1, end rollers 82 and 83 for supporting the recovery belt 81, and end rollers. It is provided with a belt motor Mb for driving 82. The tape collecting device 8 is provided with a roller support 821, the end roller 82 is rotatably supported by the roller support 821, and the belt motor Mb is attached to the roller support 821. The roller support 821 is mounted on the installation surface of the component mounting machine 1, and the position of the roller support 821 can be moved in the X direction by changing the mounting location of the roller support 821.

The recovery belt 81 extends in the X direction across the plurality of component mounting machines 1, and the end rollers 82 and 83 wrap both ends of the recovery belt 81 in the X direction from the inner peripheral surface side of the recovery belt 81. The recovery belt 81 hung on the end rollers 82 and 83 in this way circulates by being driven by the end rollers 82 that are rotated by the drive of the belt motor Mb.

On the other hand, the plurality of component mounting machines 1 are arranged between the upstream end roller 82 and the downstream end roller 83 in the X direction. The bottom plates 21 of the housings 2 of the plurality of component mounting machines 1 are sandwiched vertically by the endless recovery belts 81 and are lined up in a row at the same height inside the recovery belts 81. Orbits the outside of the bottom plate 21 of the. On the other hand, the housing 2 of the component mounting machine 1 has openings 22 in the side plates 2a on both sides in the X direction, and the openings 22 of each component mounting machine 1 are lined up in a row in the X direction. Then, of the recovery belt 81, the portion above the bottom plate 21 (the portion provided with the upper surface 81u of the belt) moves in the X direction on the upper side of the bottom plate 21 while passing through the opening 22, and is a portion below the bottom plate 21. (The portion including the lower surface 81d of the belt) moves on the lower side of the bottom plate 21 in the X direction.

That is, of the outer peripheral surfaces of the recovery belt 81, the upper surface 81u of the belt and the lower surface 81d of the belt located on opposite sides to the end rollers 82 and 83 are conveyed as follows. The upper belt upper surface 81u is supported so as to penetrate the openings 22 of the plurality of component mounting machines 1 in the X direction, and is conveyed in the collection direction Dc from the end roller 82 toward the end roller 83 in the X direction. It passes through the openings 22 of the plurality of component mounting machines 1 in order from the upstream side of the above. On the other hand, the lower belt lower surface 81d passes under the bottom plate 21 of the component mounting machine 1 in order from the downstream side in the X direction while being conveyed in the reverse direction Db opposite to the collection direction Dc.

As described above, in the tape recovery device 8, a single recovery belt 81 is commonly provided for the plurality of component mounting machines 1. The belt upper surface 81u of the recovery belt 81 extends in the X direction (or recovery direction Dc) across the plurality of component mounting machines 1. And. Of the two openings 22 opened in the housing 2 of the component mounting machine 1, the belt upper surface 81u has a plurality of passing operations of entering through the opening 22 on the upstream side in the collection direction Dc and exiting from the opening 22 on the downstream side. This is executed in order for the component mounting machine 1 of. On the other hand, each of the plurality of component mounting machines 1 discards the carrier tape or the like with respect to the upper surface 81u of the belt moving between the two openings 22. Then, the carrier tape or the like discarded on the upper surface 81u of the belt is conveyed in the collection direction Dc as the upper surface 81u of the belt moves.

In this way, in each of the plurality of component mounting machines 1, the plurality of tape feeders 5 arranged in the collection direction Dc (in other words, the X direction) intermittently convey the tape in the feed direction Df orthogonal to the collection direction Dc. To do. Then, the tape discarded from the tape feeder 5 is collected in the collection direction Dc.

The tape recovery device 8 is provided with a support rail 84 for supporting the belt upper surface 81u of the recovery belt 81 from the inner peripheral surface side of the recovery belt 81 for each of the plurality of component mounting machines 1. Each support rail 84 is fixed to the housing 2 of the corresponding component mounting machine 1 and is in contact with the inner peripheral surface of the recovery belt 81 on the belt upper surface 81u side. In other words, the plurality of component mounting machines 1 include support rails 84 that support the belt upper surface 81u of the recovery belt 81 passing through the respective housings 2 from below. The support rails 84 of each of the plurality of component mounting machines 1 are extended horizontally, and the upper surface 81u of the belt passing through the plurality of component mounting machines 1 is horizontally supported.

Further, the tape collecting device 8 has an inclined unit 85 that tilts the collecting belt 81 upward on the downstream side of the collecting direction Dc of the plurality of component mounting machines 1. The tilting unit 85 is mounted on the installation surface of the component mounting machine 1. For example, the recovery belt 81 is tilted by supporting the recovery belt 81 by a slope rail that is tilted in the horizontal direction. By the tilting unit 85, the upper surface 81u of the belt carried out from the opening 22 of the most downstream component mounting machine 1 among the plurality of component mounting machines 1 heads toward the end roller 83 while rising in the collecting direction Dc. That is, the belt upper surface 81u conveyed in the collection direction Dc horizontally passes through the plurality of component mounting machines 1 and then rises toward the end roller 83. On the other hand, the belt lower surface 81d conveyed in the reverse direction Db descends from the end roller 83 toward the component mounting machine 1, and then passes horizontally through the plurality of component mounting machines 1.

Further, the end roller 83 is rotatably supported by the tilting unit 85. The tilting unit 85 is mounted on the installation surface of the component mounting machine 1, and the position of the tilting unit 85 can be moved in the X direction by changing the mounting location of the tilting unit 85. Therefore, by moving at least one of the tilting unit 85 and the roller support 821 according to the change in the peripheral length of the recovery belt 81 as described later, the end roller 82 and the end roller 83 in the X direction can be moved. You can adjust the distance between them.

That is, the end roller 83 is offset upward. In particular, in this example, the end roller 83 is arranged above the bottom plates 21 of the plurality of component mounting machines 1. As a result, the recovery belt 81 (downward inclined portion 81l in FIG. 5) from the end roller 83 toward the most downstream component mounting machine 1 in the collecting direction Dc among the plurality of component mounting machines 1 moves while descending. As a result, a space is secured under the end roller 83.

Then, the tape collection device 8 includes a collection container 89 arranged in this space. The collection container 89 is a box having an opening 891 that is open upward, and in a plan view from the Z direction, the downstream end of the end roller 83 in the collection direction Dc and the opening 891 of the collection container 89 overlap. Therefore, when the carrier tape or the like discarded on the upper surface 81u of the belt and conveyed in the collection direction Dc reaches the end roller 83, it falls from the end roller 83 into the opening 891 of the collection container 89 and is collected in the collection container 89. Ru.

The collection container 89 does not need to be provided for each of the two collection belts 81, and can be provided in common for the two collection belts 81. For example, a relay conveyor extending in the Y direction may be provided on the downstream side (outside) of the most downstream component mounting machine 1 in the collection direction Dc among the plurality of component mounting machines 1. In such a configuration, of the two recovery belts 81, the other recovery belt 81 is shorter than one recovery belt 81, and one recovery belt 81 projects from the most downstream component mounting machine 1 in the recovery direction Dc. The distance from the most downstream component mounting machine 1 to the recovery direction Dc is shorter than the distance from the other recovery belt 81. Then, the carrier tape delivered to the relay conveyor from the end of the collection direction Dc of the other collection belt 81 is raised and conveyed to one collection belt 81 by the relay conveyor. Subsequently, one of the collection belts 81 conveys the carrier tape received from the relay conveyor to the collection container 89.

Alternatively, a collection conveyor extending in the Y direction may be arranged so as to overlap the downstream ends of the collection directions Dc of the two collection belts 81 in a plan view from the Z direction. In the collection direction Dc, the collection conveyor is provided below the downstream end of each collection belt 81, and the carrier tape dropped on the collection conveyor from the downstream end of each collection belt 81 is conveyed in the Y direction by the collection conveyor to the collection container. Collected at 89.

Furthermore, the collection container 89 can be commonly used without providing such a conveyor. That is, by extending the collection container 89 in the Y direction so as to straddle each collection belt 81 in the Y direction, the collection container 89 may be provided in common for the two collection belts 81.

By the way, as shown in FIGS. 6 and 7, the recovery belt 81 has a configuration in which its peripheral length can be changed. Next, this point will be described. Note that, in FIGS. 6 and 7, the portion of the recovery belt 81 above the bottom plate 21 is shown, but the portion below the bottom plate 21 is also configured in the same manner.

The recovery belt 81 has a plurality of slats 811 arranged in the circulation direction (collection direction Dc in FIGS. 6 and 7), and a plurality of connecting shafts 819 provided corresponding to the plurality of slats 811. The slats 811 and the connecting shaft 819 are alternately arranged in the circulation direction of the recovery belt 81, and each connecting shaft 819 rotatably connects two adjacent slats 811 on both sides. More specifically, the slats 811 have a transport flat plate 812 having a long rectangular shape in the Y direction, a projecting piece 813 projecting downward at the downstream end of the transport flat plate 812 in the circulation direction, and a projecting piece 813 in the Y direction. It has an insertion hole (not shown in the figure) that penetrates.

Then, the connecting shaft 819 inserted into the insertion hole of the protruding piece 813 of one slat 811 engages with the upstream end of the other slat 811 adjacent in the circulation direction on the downstream side in the circulation direction of one slat 811. As a result, one slat 811 and the other slat 811 are rotatably connected to each other. Engagement of the connecting shaft 819 with the slats 811 can be performed, for example, by fastening with screws or the like. In such a configuration, one slat 811 and the other slat 811 can be separated by removing the connecting shaft 819 from the other slat 811 and pulling it out from the insertion hole of one slat 811. Therefore, the number of slats 811 constituting the recovery belt 81 can be increased or decreased to change the peripheral length of the recovery belt 81, and as a result, the length of the upper surface 81u of the belt can be changed.

The flat plate upper surface 812u of the transport flat plate 812 constitutes the belt upper surface 81u of the recovery belt 81, and the slats 811 are formed from both ends of the flat plate upper surface 812u of the transport flat plate 812 on both sides in the Y direction (width direction) orthogonal to the circulation direction. It further has a pair of (ie, two) wallboards 815 that stand on the outside. Therefore, the carrier tape that has fallen on the upper surface of the flat plate 812u is sandwiched by the pair of wall plates 815 from the Y direction.

As shown in FIG. 6, the wall plate 815 is inclined with respect to the collection direction Dc, and is upstream in the circulation direction of the pair of wall plates 815 with respect to the width of the downstream end in the circulation direction of the pair of wall plates 815. The edges are wide. Further, the wall plate 815 is provided so as to project from the transport flat plate 812 on both sides in the collection direction Dc. Then, the downstream end of the pair of wall plates 815 of one slat 811 in the circulation direction is the upstream end of the pair of wall plates 815 of the other slat 811 on the downstream side of the circulation direction of one slat 811. Located between (inside). Thus, in the front view from the Y direction, the wall plate 815 of one slat 811 and the wall plate 815 of the other slat 811 partially overlap each other.

Further, as shown in FIG. 8, the component mounting system MS includes a control device 9. The control device 9 is, for example, a personal computer equipped with a processor, and controls a plurality of component mounting machines 1 to execute component mounting on a board, or controls a belt motor Mb to execute a plurality of component mounting machines. 1 It is possible to control the collection of carrier tapes and the like from each.

That is, each component mounting machine 1 includes a control unit 19 having a calculation function composed of a processor or the like. The control unit 19 controls intermittent transfer of tape by the tape feeder 5 and suction and mounting of parts by the mounting head 41. Further, the control unit 19 controls the cutting of the carrier tape by the cutter 72.

Further, the tape collecting device 8 is provided with a tape sensor St for detecting a carrier tape or the like for each of the plurality of component mounting machines 1. That is, in the component mounting machine 1, the tape sensor St faces the belt upper surface 81u, and the tape sensor St transmits a detection signal indicating the amount of carrier tape or the like on the belt upper surface 81u to the control device 9. Then, the control device 9 controls the belt motor Mb based on the detection signal received from the tape sensor St to execute the tape collection for collecting the carrier tape or the like from each component mounting machine 1.

FIG. 9 is a flowchart showing an example of tape collection. Such a flowchart is executed under the control of the control device 9. In step S101, the control device 9 obtains the amount (estimated waste amount) of the carrier tape or the like on the belt upper surface 81u in each component mounting machine 1 based on the detection signals from the tape sensors St of each of the plurality of component mounting machines 1. Therefore, it is determined whether or not the component mounting machine 1 whose estimated waste amount is equal to or larger than the transfer start amount exists among the plurality of component mounting machines 1. Then, while the control device 9 determines that the estimated waste amount is less than the transfer start amount in each of the plurality of component mounting machines 1 (during "NO" in step S101), the recovery belt 81 is stopped. Make it wait at.

On the other hand, when the control device 9 determines that there is a component mounting machine 1 whose estimated waste amount is equal to or greater than the transfer start amount (“YES” in step S101), the control device 9 starts driving the recovery belt 81 by the belt motor Mb, and normally Transport is executed (step S102). In this normal transfer, the control device 9 circulates the recovery belt 81 at a normal speed. As a result, the upper surface 81u of the belt is conveyed in the collection direction Dc at a normal speed, and the carrier tape or the like on the upper surface 81u of the belt is collected in the collection container 89 at a normal pace.

In step S103, the control device 9 determines whether or not to finish the tape collection. For example, when the component mounting of each of the plurality of component mounting machines 1 is completed and the carrier tape or the like is not discarded, the amount of the carrier tape or the like on the upper surface 81u of the belt decreases with the collection of the carrier tape or the like. As a result, when it is confirmed that the estimated waste amount is less than the transfer start amount in each of the plurality of component mounting machines 1, it is determined that the tape collection is completed (YES) in step S103.

On the other hand, if it is determined in step S103 that the tape collection is continued (NO), the control device 9 mounts a plurality of components in the component mounting machine 1 in which the estimated disposal amount is equal to or greater than the disposal prohibited amount (amount larger than the transfer start amount). It is determined whether or not it exists in the machine 1 (step S104). When the control device 9 determines that the estimated waste amount is less than the disposal prohibited amount in each of the plurality of component mounting machines 1 (“NO” in step S104), the estimated waste amount is larger than the high-speed transport amount (transport start amount). It is determined whether or not the component mounting machine 1 having the amount equal to or more than the disposal prohibited amount) exists in the plurality of component mounting machines 1 (step S105). When the control device 9 determines that the estimated waste amount is less than the high-speed transport amount in each of the plurality of component mounting machines 1 (“NO” in step S105), the control device 9 returns to step S102.

On the other hand, when the control device 9 determines that there is a component mounting machine 1 whose estimated waste amount is equal to or higher than the high-speed transport amount (“YES” in step S105), the control device 9 accelerates the drive of the recovery belt 81 by the belt motor Mb to achieve high speed. Transport is executed (step S106). In this high-speed transfer, the control device 9 circulates the recovery belt 81 at a high speed higher than the normal speed. As a result, the upper surface 81u of the belt is conveyed in the collection direction Dc at a high speed, and the carrier tape or the like on the upper surface 81u of the belt is collected in the collection container 89 at a high speed faster than the normal pace.

In step S107, the control device 9 determines whether or not the estimated waste amount of each of the plurality of component mounting machines 1 is less than the high-speed transport amount. Then, while the control device 9 determines that the estimated waste amount is equal to or greater than the high-speed transfer amount in any of the plurality of component mounting machines 1 (between "NO" in step S107), the recovery belt 81 is conveyed at high speed. To continue. On the other hand, when the control device 9 determines that the estimated waste amount is less than the high-speed transport amount in each of the plurality of component mounting machines 1, the process returns to step S102.

In step S104 above, when the control device 9 determines that the component mounting machine 1 whose estimated disposal amount is equal to or greater than the disposal prohibited amount exists in the plurality of component mounting machines 1 (YES), the control device 9 executes step S108. .. In step S108, the control device 9 transmits a disposal prohibition command to the control unit 19 of the corresponding component mounting machine 1 whose estimated disposal amount is equal to or greater than the disposal prohibition amount. Upon receiving the disposal prohibition command, the control unit 19 stops the intermittent transfer of the tape by the tape feeder 5 and stops the cutting of the tape by the cutter 72. As a result, the disposal of the carrier tape or the like from the component mounting machine 1 to the recovery belt 81 is interrupted.

Further, the control device 9 accelerates the drive of the recovery belt 81 by the belt motor Mb and executes ultra-high speed transfer (step S109). In this ultra-high speed transfer, the control device 9 circulates the recovery belt 81 at an ultra-high speed faster than the high speed. As a result, the upper surface 81u of the belt is conveyed in the collection direction Dc at an ultra-high speed, and the carrier tape or the like on the upper surface 81u of the belt is collected in the collection container 89 at an ultra-high speed pace faster than the high speed pace.

In step S110, the control device 9 determines whether or not the estimated waste amount of each of the plurality of component mounting machines 1 is less than the waste prohibition amount. Then, while it is determined in either the control device 9 or the plurality of component mounting machines 1 that the estimated disposal amount is equal to or greater than the disposal prohibition amount (between "NO" in step S110), the collection belt 81 is conveyed at ultra-high speed. To continue. On the other hand, when the control device 9 determines that the estimated waste amount of each of the plurality of component mounting machines 1 is less than the waste prohibition amount, the control device 9 executes step S111 and then proceeds to step S105. In this step S111, the control device 9 transmits a disposal permission command to the component mounting machine 1 which has prohibited the disposal of the carrier tape or the like from the tape disposal unit 7. Upon receiving the disposal permission command, the control unit 19 starts intermittently conveying the tape by the tape feeder 5 and starts cutting the tape by the cutter 72. As a result, the disposal of the carrier tape and the like from the corresponding component mounting machine 1 to the recovery belt 81 is restarted.

In the embodiment described above, the endless recovery belt 81 including the belt upper surface 81u (conveying surface) extending over the plurality of component mounting machines 1 is provided, and the carrier tape (tape) discarded from the component mounting machine 1 is provided. ) Is received by the belt upper surface 81u of the recovery belt 81. Then, this carrier tape is conveyed together with the belt upper surface 81u in the collection direction Dc (conveyance direction), and is collected in the collection container 89. That is, instead of providing a conveyor for each of the plurality of component mounting machines 1, a single collection belt 81 is provided for each of the plurality of component mounting machines 1, and the carrier tape discarded from the component mounting machine 1 is provided. It is collected in the collection container 89 by a single collection belt 81. Therefore, the carrier tape does not fall due to the transfer of the carrier tape between the conveyors. In this way, it is possible to collect the carrier tape in the collection container 89 while suppressing the drop of the carrier tape discarded from each of the plurality of component mounting machines 1. Further, in order to drive the conveyors provided in each of the plurality of component mounting machines 1, it is not necessary to provide a drive source such as a motor in each component mounting machine 1, so that cost and space can be saved.

As described above, the carrier tape may be collected in the collection container 89 directly from the collection belt 81 to the collection container 89, or may be performed via a relay conveyor or a collection conveyor. That is, the carrier tape dropped from each of the plurality of component mounting machines 1 arranged in the recovery direction Dc onto the belt upper surface 81u of the recovery belt 81 is removed from the most downstream component mounting machine 1 in the recovery direction Dc among the plurality of component mounting machines 1. It may be collected by a single collection belt 81 outside the collection direction Dc. As a result, it is possible to prevent the carrier tape from falling due to delivery between the component mounting machines 1.

Further, the tape recovery device 8 has an end roller 82 (first end roller) and an end roller 83 (second end roller) around which the recovery belt 81 is wound at both ends in the collection direction Dc. By supporting the end rollers 82 and 83 in this way, it is possible to stabilize the circulation of the recovery belt 81.

Further, the end roller 83 moves from the end roller 83 (one roller) so that the recovery belt 81 toward the most downstream component mounting machine 1 in the collecting direction Dc among the plurality of component mounting machines 1 moves while descending. Is placed. The collection container 89 is arranged below the end roller 83 so that the end roller 83 and the collection container 89 (opening 891) overlap at least partially in a plan view from the Z direction. .. In such a configuration, the collection container 89 can be arranged in the space secured under the end roller 83, and the carrier tape falling from the collection belt 81 wound around the end roller 83 is surely placed in the collection container 89. Can be collected in.

Further, a control device 9 for controlling the circulation of the recovery belt 81 by the belt motor Mb (drive unit) according to the amount of carrier tape discarded from the tape disposal unit 7 is provided. Therefore, it is possible to efficiently circulate the belt according to the amount of the carrier tape discarded.

Further, when the control device 9 determines that the amount of carrier tape on the belt upper surface 81u of the stopped recovery belt 81 has reached a predetermined transfer start amount (“YES” in step S101), the control device 9 circulates the recovery belt 81. The belt motor Mb is started (step S102). Therefore, it is possible to suppress unnecessary driving of the recovery belt 81.

Further, the control device 9 controls the speed at which the recovery belt 81 is circulated to the belt motor Mb according to the amount of the carrier tape on the upper surface 81u of the belt (steps S102, S106, S109). In such a configuration, the recovery belt 81 can be driven at an appropriate speed according to the amount of carrier tape on the upper surface 81u of the belt. This makes it possible to prevent the carrier tape on the upper surface 81u of the belt from falling out from the upper surface 81u of the belt.

Further, when the control device 9 determines that the amount of carrier tape on the upper surface 81u of the belt is less than the high-speed transport amount (“NO” in step S105), the recovery belt 81 is circulated to the belt motor Mb at a normal speed (step). S102), when it is determined that the amount of carrier tape on the upper surface 81u of the belt is equal to or greater than the high-speed transport amount (“YES” in step S105), the recovery belt 81 is circulated to the belt motor Mb at a high speed faster than the normal speed (step). S106). In such a configuration, when the amount of the carrier tape on the upper surface 81u of the belt increases to exceed the high-speed transport amount, the upper surface 81u of the belt is conveyed at a high speed, and the collection of the carrier tape on the upper surface 81u of the belt is accelerated. As a result, it is possible to prevent a large amount of carrier tape from accumulating on the upper surface 81u of the belt.

Further, when the control device 9 determines that the amount of the carrier tape on the upper surface 81u of the belt has reached the disposal prohibited amount (“YES” in step S104), the control device 9 prohibits the disposal of the carrier tape from the tape disposal unit 7 (“YES” in step S104). Step S108), the speed at which the carrier tape is circulated through the belt motor Mb is increased (step S109). As a result, the carrier tape deposited on the upper surface 81u of the belt can be urgently collected, and the carrier tape can be prevented from overflowing from the collection belt 81.

Further, when the control device 9 determines that the amount of the carrier tape on the upper surface 81u of the belt has decreased to less than the disposal prohibited amount (“YES” in step S110), the control device 9 permits the disposal of the carrier tape from the tape disposal unit 7. (Step S111), the speed at which the recovery belt 81 is circulated through the belt motor Mb is reduced (steps S012 and S106). In such a configuration, after the accumulation of the carrier tape on the upper surface 81u of the belt is eliminated, the carrier tape is discarded from each component mounting machine 1 and the recovery belt 81 is circulated at an appropriate speed to collect the tape. Control can be performed.

Further, a tape sensor St for detecting the amount of carrier tape on the upper surface 81u of the belt is provided, and the control device 9 determines the amount of carrier tape on the upper surface 81u of the belt based on the detection result of the tape sensor St. In such a configuration, the amount of carrier tape on the upper surface 81u of the belt can be accurately determined from the detection result of the tape sensor St.

Further, the component mounting machine 1 has a housing 2 for accommodating the mounting head 41 and a support rail 84 (belt support member) for supporting the recovery belt 81 passing through the housing 2. In such a configuration, a long recovery belt 81 having a belt upper surface 81u over a plurality of component mounting machines 1 can be supported by a support rail 84 provided on the component mounting machine 1 to stably circulate the recovery belt 81. ..

Further, the component mounting machine 1 further includes a housing 2 for accommodating the mounting head 41 and support legs 14 for supporting the housing 2 with respect to the installation surface. Then, in a plan view from the Z direction, the recovery belt 81 is arranged so as to overlap the tape feeder 5, and the center line C14 of the support leg 14 is such that the tape feeder 5 feeds the tape from the center line C81 of the recovery belt 81. It is located on the opposite side of the feed direction Df. In such a configuration, the inside of the housing 2 of the component mounting machine 1 can be efficiently used for arranging the recovery belt 81, and space can be saved.

Further, openings 22 are provided on both sides of the housing 2 in the collection direction Dc. On the other hand, the belt upper surface 81u of the recovery belt 81 is provided so as to penetrate the housing 2 through the opening 22, enters the housing 2 through the opening 22, and exits from the housing 2 through the opening 22. To do. By providing the opening 22 in the housing 2 of the component mounting machine 1 in this way, the recovery belt 81 having the belt upper surface 81u over the plurality of component mounting machines 1 can be arranged.

Further, the tape disposal unit 7 has a tape guide 75 that guides the carrier tape to the belt upper surface 81u of the recovery belt 81. In such a configuration, the carrier tape discarded from the tape disposal unit 7 can be accurately guided to the upper surface 81u of the belt of the recovery belt 81, and the carrier tape can be suppressed from falling from the recovery belt 81.

Further, the component mounting machine 1 includes a reel holding portion 62 for holding the reel R, and the reel holding portion 62 discards the used reel R on the belt upper surface 81u of the collection belt 81. In such a configuration, the used reel R is conveyed in the collection direction Dc along with the collection belt 81 and collected in the collection container 89. Therefore, it is not necessary for the operator to collect the reel R, and the burden on the operator is reduced.

Further, the length of the upper surface 81u of the belt provided between the end roller 82 and the end roller 83 can be changed. Such a configuration is suitable because the length of the upper surface 81u of the belt can be changed according to the change in the number of component mounting machines 1 constituting the component mounting system MS.

Further, the recovery belt 81 has a plurality of slats 811 arranged along the circulation direction of the recovery belt 81. Then, by engaging the connecting shaft 819 with two slats 811 adjacent to each other in the circulation direction among the plurality of slats 811, the two slats 811 are rotatably connected to each other, while the two slats 811 are connected to each other. By removing the connecting shaft 819 from the slats 811, the two slats 811 are separated. In such a configuration, the length of the upper surface 81u of the belt can be changed by changing the number of slats 811 constituting the recovery belt 81.

Further, the slats 811 are erected from the transport flat plate 812 (conveyor plate) having the flat plate upper surface 812u (surface) functioning as the belt upper surface 81u and from the transport flat plate 812 on both sides in the Y direction (width direction) orthogonal to the collection direction Dc. It has two wall plates 815 and the carrier tape on the upper surface 812u of the flat plate is sandwiched between the two wall plates 815. In such a configuration, the fall of the carrier tape from the slats 811 can be suppressed by the wall plate 815.

Further, the wall plate 815 protrudes from both ends of the transport flat plate 812 in the collection direction Dc, and the wall plates 815 of each of the two slats 811 partially overlap each other. In such a configuration, since there is no gap between the wall plates 815 of each of the two slats 811 it is possible to prevent the carrier tape from falling through the gap.

As described above, in the present embodiment, the component mounting machine 1 corresponds to an example of the "component mounting machine" of the present invention, the support leg 14 corresponds to an example of the "support leg" of the present invention, and the housing 2 corresponds to the present invention. The opening 22 corresponds to an example of the "opening" of the present invention, the mounting head 41 corresponds to an example of the "mounting head" of the present invention, and the tape feeder 5 corresponds to the "feeder" of the present invention. The tape slope 63 corresponds to an example of the "tape guide" of the present invention, the tape disposal unit 7 corresponds to an example of the "tape disposal unit" of the present invention, and the tape recovery device 8 corresponds to the present invention. The recovery belt 81 corresponds to an example of the "belt" of the present invention, the upper surface 81u of the belt corresponds to an example of the "conveyance surface" of the present invention, and the slats 811 correspond to the present invention. The transport flat plate 812 corresponds to an example of the "conveyor plate" of the present invention, the upper surface of the flat plate 812u corresponds to an example of the "surface" of the present invention, and the wall plate 815 corresponds to the example of the "surface" of the present invention. Corresponding to an example of a "wall plate", the connecting shaft 819 corresponds to an example of the "connecting shaft" of the present invention, and the end roller 82, the end roller 83 and the belt motor Mb cooperate with each other to drive the "drive" of the present invention. The end rollers 82 and 83 correspond to an example of the "first and second end rollers" of the present invention, and the support rail 84 corresponds to an example of the "belt support member" of the present invention. The recovery container 89 corresponds to an example of the "recovery container" of the present invention, the control device 9 corresponds to an example of the "control unit" of the present invention, and the center line C14 corresponds to the "center of the support leg" of the present invention. The center line C81 corresponds to the "center of the belt" of the present invention, the collection direction Dc corresponds to an example of the "transport direction" of the present invention, and the component mounting system MS corresponds to the "component mounting system" of the present invention. The carrier tape corresponds to an example of the "tape" of the present invention, the Y direction corresponds to an example of the "width direction" of the present invention, and the Z direction corresponds to an example of the "vertical direction" of the present invention. Equivalent to.

The present invention is not limited to the above-described embodiment, and various modifications can be made to the above-described one without departing from the spirit of the present invention. For example, the specific configuration for changing the length of the belt upper surface 81u (conveying surface) is not limited to the configuration of increasing or decreasing the number of slats 811 constituting the recovery belt 81, and may be, for example, the configuration shown in FIG.

FIG. 10 is a diagram schematically showing a modified example of a configuration in which the length of the upper surface of the recovery belt is changed. In this modification, the tape recovery device 8 has two intermediate rollers 86, 87 and a roller support member 88 that rotatably supports the end rollers 82, 83 and the intermediate rollers 86, 87. The roller support member 88 supports at least one of the end rollers 82 and 83 so as to be movable in the X direction, and supports at least one of the intermediate rollers 86 and 87 so as to be movable in the X direction.

The intermediate rollers 86 and 87 wind the recovery belt 81 around the end rollers 82 and 83 on the opposite side of the belt upper surface 81u. Of these, the intermediate roller 86 wraps the outer peripheral surface of the collection belt 81 between the end roller 83 and the end roller 82, and the intermediate roller 87 collects between the intermediate roller 86 and the end roller 82. The inner peripheral surface of the belt 81 is wrapped around it. Further, in the recovery direction Dc, the intermediate roller 86 is located closer to the end roller 82 than the intermediate roller 87, and the intermediate roller 87 is located closer to the end roller 83 than the intermediate roller 86. That is, in a plan view from the Z direction, the end roller 82, the intermediate roller 86, the intermediate roller 87, and the end roller 83 are arranged in this order in the collection direction Dc.

In this way, the recovery belt 81 supported by the end rollers 82, 83 and the intermediate rollers 86, 87 is circulated and driven by the belt motor Mb, so that the end roller 82 (first end roller) and the end roller 83 (Second end roller), intermediate roller 86 (first intermediate roller) and intermediate roller 87 (second intermediate roller) are passed in this order. As described above, in this modification, the end rollers 82, 83, the intermediate rollers 86, 87, the roller support member 88, and the belt motor Mb cooperate to function as an example of the "driving unit" of the present invention.

Then, as can be seen from the comparison between the "contracted state" and the "extended state" in FIG. 10, the length of the belt upper surface 81u can be changed in the collection direction Dc. That is, in the recovery direction Dc, by increasing the distance between the intermediate roller 86 and the intermediate roller 87 and decreasing the distance between the end roller 82 and the end roller 83, the upper surface 81u of the belt is stretched while the recovery belt 81 is stretched. Can be shortened. On the other hand, in the recovery direction Dc, by increasing the distance between the end roller 82 and the end roller 83 while reducing the distance between the intermediate roller 86 and the intermediate roller 87, the upper surface 81u of the belt is stretched while the recovery belt 81 is stretched. You can make it longer. That is, the length of the upper surface 81u of the belt can be changed by changing the distance between the end rollers 82 and 83, and the length of the upper surface 81u of the belt can be changed by changing the distance between the intermediate rollers 86 and 87. Regardless, an appropriate tension can be given to the upper surface 81u of the belt.

In addition to the configuration related to changing the length of the belt upper surface 81u of the recovery belt 81, changes can be made as appropriate. For example, in the above embodiment, the amount of tape on the upper surface 81u of the belt of the recovery belt 81 is determined based on the detection result of the tape sensor St. However, the amount of tape on the belt upper surface 81u of the recovery belt 81 may be determined from the operating conditions of each of the plurality of component mounting machines 1.

Specifically, for example, the amount of tape can be determined based on the number of times the tape is cut. At this time, the length of the cut tape can be estimated from the pitch at which the tape feeder 5 feeds the tape to the lane L side and the number of times the tape feeder 5 feeds the tape while the tape is cut twice. , The amount of tape may be determined by referring to the estimated length of this tape. Furthermore, the amount of tape may be determined with reference to the thickness of the tape. In such a configuration, the amount of tape on the upper surface 81u of the belt can be accurately determined from the operating status of the component mounting machine 1 (in other words, the disposal status of the tape).

Further, the present invention is not limited to the end roller 82 driven by the belt motor Mb, and other rollers such as the end roller 83 may be used.

Also, the method of exposing the parts in the parts supply tape is not limited to the method of peeling the cover tape from the carrier tape. That is, the parts may be exposed by a method in which one end of the cover tape is torn and the cover tape is rolled up to the other end side.

Further, the number of component mounting machines 1 included in the component mounting system MS may be two or four or more.

Further, the collection of the reel R does not necessarily have to be executed by the tape collection device 8.

1 ... Parts mounting machine 14 ... Support legs 2 ... Housing 22 ... Opening 41 ... Mounting head 5 ... Tape feeder (feeder)
63 ... Tape slope (tape guide)
7 ... Tape disposal unit 8 ... Tape recovery device 81 ... Recovery belt (belt)
81u ... Upper surface of belt (conveyed surface)
811 ... Slat 812 ... Conveying flat plate (conveying plate)
812u ... Upper surface (surface) of flat plate
815 ... Wall plate 819 ... Connecting shaft 82 ... End roller (driving part)
83 ... End roller (drive unit)
84 ... Support rail (belt support member)
89 ... Recovery container 9 ... Control device (control unit)
C14 ... Center line (center of support leg)
C81 ... Center line (center of belt)
Dc ... Collection direction (transportation direction)
Mb ... Belt motor (drive unit)
MS ... Component mounting system Y ... Y direction (width direction)
Z ... Z direction (vertical direction)

Claims (24)

Multiple component mounting machines that mount components on boards that are transported in order,
An endless belt including a transport surface extended over the plurality of component mounting machines,
A drive unit that drives the transport surface in the transport direction by circulating the belt is provided.
The component mounting machine has a feeder that supplies components by sending a tape for accommodating the components, a mounting head that transfers the components supplied by the feeder to a board, and tape disposal that discards the tape from which the components have been taken out. Has a part and
The belt receives the tape discarded from the tape disposal section on the transport surface, and receives the tape.
A component mounting system in which the tape received on the transport surface is transported by the transport surface in the transport direction and collected. The component mounting system according to claim 1, wherein the drive unit has first and second end rollers around which the belt is wound at both ends in the transport direction. The component mounting system according to claim 2, wherein the length of the transport surface provided between the first end roller and the second end roller can be changed. The drive unit has first and second intermediate rollers around which the belt is wound on the opposite side of the transport surface with respect to the first and second end rollers, and is between the first and second ends. The first and second intermediate rollers are supported by varying the distance between the rollers.
The belt circulated by the drive unit passes through the first end roller, the second end roller, the first intermediate roller, and the second intermediate roller in order.
Of the first and second intermediate rollers, one intermediate roller winds the belt from the inside, and the other intermediate roller winds the belt from the outside.
In the transport direction, the first intermediate roller is located closer to the first end roller than the second intermediate roller, and the second intermediate roller is located closer to the second end roller than the first intermediate roller. Located on the side,
The component mounting system according to claim 3, wherein the distance between the first and second intermediate rollers can be reduced / increased in accordance with the increase / decrease in the distance between the first and second end rollers. The belt has a plurality of slats arranged along the circulation direction of the belt.
By engaging the connecting shaft with two adjacent slats in the circulation direction among the plurality of slats, the two slats are rotatably connected to each other, while the two slats are connected to each other. The component mounting system according to claim 3, wherein the two slats are separated by removing the connecting shaft. The slats have a transport plate having a surface that functions as the transport surface, and two wall plates erected from the transport plates on both sides in the width direction orthogonal to the transport direction, and are on the surface. The component mounting system according to claim 5, wherein the tape is sandwiched between the wall plates. The wall plate projects from the transport plate in the transport direction and
The component mounting system according to claim 6, wherein the wall plates of the two slats partially overlap each other. A collection container provided for the downstream end of the belt in the transport direction is further provided.
The component mounting system according to any one of claims 2 to 7, wherein the tape received on the transport surface is transported in the transport direction by the transport surface and collected in the collection container. The belt from one of the first and second end rollers on the collection container side to the most downstream component mounting machine in the transport direction of the plurality of component mounting machines moves while descending. One of the rollers is arranged so that
The component mounting system according to claim 8, wherein the collection container is arranged under the one roller so that the one roller and the collection container overlap at least partially when viewed from the vertical direction. The component mounting system according to any one of claims 1 to 9, further comprising a control unit that controls circulation of the belt by the drive unit according to the amount of tape discarded from the tape disposal unit. The component according to claim 10, wherein when the control unit determines that the amount of tape on the transport surface of the belt that is stopped has reached a predetermined transport start amount, the drive unit starts circulation of the belt. Mounting system. The component mounting system according to claim 10 or 11, wherein the control unit controls the speed at which the belt is circulated to the drive unit according to the amount of tape on the transport surface. When the control unit determines that the amount of tape on the transport surface is less than the high-speed transport amount, the belt is circulated to the drive unit at a normal speed, while the amount of tape on the transport surface is the high-speed transport. The component mounting system according to claim 12, wherein when it is determined that the amount is equal to or more than the amount, the belt is circulated to the drive unit at a high speed higher than the normal speed. When the control unit determines that the amount of tape on the transport surface has reached the disposal prohibited amount, the control unit prohibits the disposal of the tape from the tape disposal unit and increases the speed at which the belt is circulated to the drive unit. The component mounting system according to claim 12 or 13. When the control unit determines that the amount of tape on the transport surface has decreased to less than the disposal prohibited amount, the control unit permits the disposal of the tape from the tape disposal unit and determines the speed at which the belt is circulated to the drive unit. The component mounting system according to claim 14. It also has a detector that detects the amount of tape on the transport surface.
The component mounting system according to any one of claims 10 to 15, wherein the control unit determines the amount of tape on the transport surface based on the detection result of the detection unit. The component mounting system according to any one of claims 10 to 15, wherein the control unit determines the amount of tape on the transport surface from the operating status of the component mounting machine. The component mounting system according to any one of claims 1 to 17, wherein the component mounting machine further includes a housing for accommodating the mounting head and a belt support member for supporting the belt passing through the housing. The component mounting machine further includes a housing for accommodating the mounting head and support legs for supporting the housing with respect to the installation surface of the component mounting machine.
The belt is arranged so as to overlap the feeder when viewed from the vertical direction.
The component mounting system according to any one of claims 1 to 17, wherein the center of the support leg is located on the side opposite to the center of the belt in the direction in which the feeder feeds the tape. An opening is provided on each of both sides of the housing in the transport direction.
Claim 18 or 19 that the transport surface of the belt is provided so as to penetrate the housing through the opening, enters the housing through the opening, and exits the housing through the opening. The component mounting system described in. The component mounting system according to any one of claims 1 to 20, wherein the tape disposal unit has a tape guide for guiding the tape to the transport surface of the belt. The component mounting machine further has a reel holding portion for holding a reel around which the tape is wound.
The feeder supplies parts by feeding tape drawn from a reel held by the reel holder.
The component mounting system according to any one of claims 1 to 21, wherein the reel holding portion discards a reel whose tape has been used up on the transport surface of the belt. An endless belt that includes a transport surface that extends across multiple component mounters that mount components on sequentially transported boards.
A drive unit that drives the transport surface in the transport direction by circulating the belt is provided.
The component mounting machine has a feeder that supplies components by sending a tape for accommodating the components, a mounting head that transfers the components supplied by the feeder to a board, and tape disposal that discards the tape from which the components have been taken out. Has a part and
The belt receives the tape discarded from the tape disposal section on the transport surface, and receives the tape.
A tape collecting device in which the tape received on the transport surface is transported and collected in the transport direction by the transport surface. An endless belt transport surface including a transport surface extended over a plurality of component mounting machines for mounting components housed in tape on a substrate to be sequentially transported, and was discarded from the component mounting machine. The process of receiving the tape and
A process of driving the transport surface in the transport direction by circulating the belt, and
A tape collecting method including a step of collecting the tape received on the transport surface in the transport direction.

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