Feeder

A feeder provided with multiple types of tape peeling units, which are based on the type of carrier tape to be fed by the feeder, that are detachably attached to a tip section of the feeder; a cutter member, which is provided on the multiple types of tape peeling units, that peels one edge of cover tape of the carrier tape to reveal a component stored in a storage section; an identification mark provided on the multiple types of tape peeling units; an identification sensor, which is provided on main body of the feeder, that identifies the identification mark; and a comparing device that compares information recognized by the identification sensor and information of the component stored in the carrier tape.

TECHNICAL FIELD

The present application relates to a feeder capable of continuously feeding a first carrier tape and a second carrier tape to a component supply position without splicing.

BACKGROUND ART

A feeder capable of continuously feeding a first carrier tape and a second carrier tape to a component supply position without splicing is disclosed in PTL 1, and by using this feeder, splicing work when component run out becomes unnecessary, thus stoppages of component mounters due to splicing do not occur.

CITATION LIST

Patent Literature

SUMMARY

Problem to be Solved

Cover tape which covers storage sections that store a component is adhered to carrier tape which is fed by the feeder. For this, a cutter which peels the cover tape is provided on the feeder, and by peeling the cover tape using the cutter to reveal the storage sections, a component which has been supplied to a supply position can be picked up by a suction nozzle.

For this type of component mounter, because various types of components of different sizes are mounted on a circuit board, there are different carrier tapes attached to multiple feeders. That is, multiple types of carrier tapes with storage sections which store components of different sizes are attached to feeders, thus, the width of the cover tape which covers the storage sections also changes according to the size of the storage section, therefore the position of the cutting edge of the cutter which peels one edge of the cover tape must be set based on the type of carrier tape.

However, if cutters with cutting edges at different positions are fixedly provided on the feeder, only a certain type of carrier tape can be attached to the feeder. Due to this, it is effective to prepare multiple types of tape peeling units for which the position of the cutting edge of the cutter which peels the cover tape is different, and to detachably attach the tape peeling unit to the feeder based on the type of carrier tape to be attached.

In this case, it is necessary to know which type of tape peeling unit is attached to the feeder, check whether the components stored in the carrier tape attached to the feeder and the type of tape peeling unit are correct, and in the case that there is a mistake, take measures to issue a warning to an operator and so on.

The present application takes account of the above problems and an object thereof is to provide a feeder, which includes multiple types of tape peeling units each provided with an identification mark, that recognizes the identification mark using an identification sensor, and compares the recognized information and information of the components stored in the carrier tape.

Means for Solving the Problem

To solve the above problem, according to one aspect of the disclosure, a feeder capable of continuously feeding a first carrier tape and a second carrier tape to a component supply position without splicing, the feeder comprising: multiple types of tape peeling units, which are based on the type of carrier tape to be fed by the feeder, that are detachably attached to a tip section of the feeder; a cutter member, which is provided on the multiple types of tape peeling units, that peels one edge of cover tape of the carrier tape to reveal a component stored in a storage section of the carrier tape; an identification mark provided on the multiple types of tape peeling units; an identification sensor, which is provided on the main body of the feeder, that identifies the identification mark; and a comparing section that compares information recognized by the identification sensor and information of the component stored in the carrier tape.

According to another aspect of the disclosure, wherein both edge sections of the cover tape are adhered to base tape of the carrier tape, and a cutting edge of the cutter member that peels the cover tape is arranged at a different position in the width direction of the carrier tape for each of the multiple types of tape peeling units.

According to another aspect of the disclosure, wherein the tape peeling unit includes a fold-over member that erects an edge of the cover tape which was peeled by the cutter member and folds over the edge of the cover tape to the other edge side of the cover tape.

Effects

According one aspect of the disclosure, multiple types of tape peeling units, which are based on the type of carrier tape to be fed by the feeder, are detachably attached to a tip section of the feeder; a cutter member that peels one edge of cover tape of the carrier tape to reveal a component stored in a storage section of the carrier tape, and an identification mark are provided on the multiple types of tape peeling units; the identification mark is identified by the identification sensor, and the recognized information is compared with information of a component stored in the carrier tape; thus, it is possible to reliably check whether a tape peeling unit that matches the component stored in the carrier tape is attached to the feeder.

According to another aspect of the disclosure, both edge sections of the cover tape are adhered to base tape of the carrier tape, and a cutting edge of the cutter member that peels the cover tape is arranged at a different position in the width direction of the carrier tape for each of the multiple types of tape peeling units; thus, it is possible to appropriately peel the cover tape using the cutting edge of a cutter that corresponds to the edge section of the cover tape of the carrier tape.

According to another aspect of the disclosure, the tape peeling unit includes a fold-over member that erects an edge of the cover tape which was peeled by the cutter member and folds over the edge of the cover tape to the other edge side of the cover tape; thus, it is possible to fold over an edge of cover tape902to the other edge using the fold-over member while maintaining an adhered state for the other edge of cover tape902, therefore the cover tape is able to be collected together with the carrier tape.

DESCRIPTION OF EMBODIMENTS

Hereinafter, description will be given of component mounting device100which uses feeders21of the present embodiment usingFIG. 1. In the description, a conveyance direction of a printed circuit board will be referred to as an X-axis direction, a direction perpendicular to the X-axis direction in a horizontal plane will be referred to as a Y-axis direction, and a direction which is perpendicular to the X-axis direction and the Y-axis direction will be referred to as a Z-axis direction.

Note that, hereinafter, to facilitate description, in order to distinguish between carrier tape which is being fed and carrier tape which is standing by, there are cases in which the former is referred to as a first carrier tape and the latter is referred to as a second carrier tape. In these cases, since the second carrier tape becomes the first carrier tape after all of the components which are stored in the first carrier tape are used, the terms first carrier tape and second carrier tape do not indicate a specific carrier tape.

Component mounting device100includes board conveyance device10, component supply section20, component mounting device40, reel holding section50, and control device200which controls these.

Component supply section20is formed from multiple slots20aand multiple feeders21which are detachably mounted to each of the slots20a. Slots20aare provided in component supply section20lined up in parallel in the X-axis direction.

Reel holding section50holds, in an exchangeable manner, first reel810and second reel820on which carrier tapes900are wound. First reel810and second reel820are arranged adjacent to each other in the Y direction, and multiple of the reels are arranged in the X direction corresponding to each of the feeders21.

Carrier tape900stores many components such as electronic components in a row. As shown inFIG. 2andFIG. 3, carrier tape900is formed of base tape901, cover tape902, and bottom tape903. Base tape901is formed of a flexible material such as a paper material or a resin. Storage sections901a, which are cavities, are formed as through-holes in a center portion of base tape901in the width direction at a fixed interval in the length direction. Components are stored in storage sections901a. Engagement holes901bare formed as through-holes in a side portion of the base tape901at a fixed interval in the length direction.

Both side portions of cover tape902are adhered to both side portions of the top surface of base tape901using an adhesive902a(refer toFIG. 3). Cover tape902is formed of a transparent polymer film.

As illustrated inFIG. 3, bottom tape903is adhered to the bottom surface of base tape901. Components which are stored in storage sections901aare prevented from falling out by bottom tape903. Bottom tape903is formed of a paper material, a polymer film or the like and is transparent or semi-transparent.

Carrier tape900which is wound on first reels810and second reels820is inserted into each of the corresponding feeders21. Carrier tape (first carrier tape)900which is wound on one of the reels810(820) is sequentially supplied to component supply position21a, which is provided on a tip portion of feeder21, by feeder21. Accordingly, components held in carrier tape900are supplied to component supply position21a. Although carrier tape (second carrier tape)900which is wound on the other reel820(810) is inserted into feeder21, this carrier tape900stands by without being supplied by feeder21. Detailed description of feeder21will be given later.

In board conveyance device10, a pair of guide rails13aand13bare provided respectively on base41of component mounting device40. Also, a pair of conveyor belts which support and convey a printed circuit board B which is guided by both of the guide rails13aand13band which are omitted from the drawings are provided in board conveyance device10. Also, a clamp device which holds up and clamps the printed circuit board B which is conveyed to a predetermined position and which is omitted from the drawings is provided in board conveyance device10.

Printed circuit board B on which components are mounted is conveyed in the X-axis direction to a component mounting position by the conveyor belts while being guided by guide rails13aand13bof board conveyance device10. Printed circuit board B which is conveyed to the component mounting position is positioned and clamped in the component mounting position by the clamp device.

As illustrated inFIG. 1, component mounting device40includes guide rail42, Y-axis slide43, X-axis slide45, and component mounting head48which holds a suction nozzle which is not depicted in the drawings. The movement of Y-axis slide43and X-axis slide45in the Y-axis direction and the X-axis direction is controlled by a Y-axis servo motor and an X-axis servo motor which are omitted from the drawings.

A Y-axis robot is formed by guide rail42and Y-axis slide43. Guide rail42is mounted in the Y-axis direction above the base41and is arranged to be above board conveyance device10. Y-axis slide43is provided to be capable of moving in the Y-axis direction along guide rail42. Y-axis slide43is moved in the Y-axis direction via a ball screw mechanism by the Y-axis servo motor which is omitted from the drawings.

An X-axis robot is formed by X-axis slide45. X-axis slide45is provided to be capable of moving in the X-axis direction on Y-axis slide43. The X-axis servomotor which is omitted from the drawings is provided in Y-axis slide43. X-axis slide45is moved in the X-axis direction via a ball screw mechanism by the X-axis servo motor. X-axis slide45forms a moving body capable of moving in the X-axis direction and the Y-axis direction.

Component mounting head48is provided on X-axis slide45. Component mounting head48holds multiple suction nozzles (not illustrated in the drawings) in a detachable manner. The suction nozzle picks up a component which is supplied to component supply position21aand mounts the component on the printed circuit board B which is positioned in the component mounting position by board conveyance device10.

Board camera46is attached onto X-axis slide45, and board camera46images fiducial marks which are provided on the printed circuit board B which is positioned in a board mounting position, or a component or the like which is supplied to the component supply position21a, from above, and acquires board position fiducial information, component position information, and the like.

Component camera47capable of imaging a component which has been picked up by the suction nozzle from beneath is provided on base41.

Hereinafter, description will be given of feeder21of the present embodiment usingFIGS. 4 to 6. Note that, in the description hereinafter, the term “conveyance direction” indicates the conveyance direction of carrier tape900. InFIGS. 4 to 6, the right side of the paper surface is set to the front (the downstream side in the conveyance direction) and the left side of the paper surface is set to the rear (the upstream side in the conveyance direction). InFIGS. 4 to 6, upward on the paper surface is set to upward, and downward on the paper surface is set to downward.

Feeder21is mounted by being inserted into slot20afrom the front. Main body21bis a flat box shape. Note that,FIGS. 4 to 6are diagrams with a side wall of main body21bremoved to show the internal structure of feeder21.

Rail38is provided from insertion section21dat the rear section of main body21bto supply position21aat the front portion of main body21b. The top surface of rail38forms the conveying path of carrier tape900. Front section38aof rail38is formed horizontally. In the present embodiment, rail38is inclined to gradually increase in height from the rear section to before front section38a. Note that, although not depicted in the drawings, guide members which are separated by a dimension which is slightly greater than the width dimension of carrier tape900are provided on both sides of rail38.

Each of first sprocket61and second sprocket62is provided, to be capable of rotating, from the front toward the rear (from the downstream side to the upstream side in the conveyance direction) in main body21bbeneath front section38aof rail38, that is, in positions adjacent to the supply position21aof main body21b. Each of third sprocket63and fourth sprocket64is provided, to be capable of rotating, from the front toward the rear in main body21bbeneath the rear section of rail38. First engaging protrusions61a, second engaging protrusions62a, and third engaging protrusions63aare formed at a fixed angle on the outer circumferences of first sprocket61, second sprocket62, and third sprocket63, respectively. Fourth engaging protrusions64aare formed at a fixed angle on a portion of the outer circumference of fourth sprocket64. Each of the engaging protrusions61ato64aengages with engagement holes901bof carrier tape900.

First sprocket gear61b, second sprocket gear62b, third sprocket gear63b, and fourth sprocket gear64bare formed closer to the inside than the outer circumference of the first sprocket61to the fourth sprocket64, respectively. Note that, window hole38b(refer toFIG. 5) is provided above each of the sprockets61to64of rail38. Each of the engaging protrusions61ato64aprotrudes from the top of rail38through window hole38b.

First servo motor22is a servo motor which rotates the first sprocket61and the second sprocket62. First drive gear22bis provided on rotating shaft22aof the first servo motor22. First gear24is rotatably provided on main body21bbeneath first sprocket61and second sprocket62. First outside gear24awhich meshes with first drive gear22bis formed on the outer circumference of first gear24. First inside gear24bis formed closer to the inside than the outer circumference of first gear24.

Second gear25is rotatably provided on main body21bbetween first sprocket61and second sprocket62, and first gear24. Second gear25meshes with first sprocket gear61b, second sprocket gear62b, and first inside gear24b. According to this configuration, the rotation speed of first servo motor22is reduced and transmitted to first sprocket61and second sprocket62, and, first sprocket61and second sprocket62rotate in synchronization.

Second servo motor23is a servo motor which rotates third sprocket63and fourth sprocket64. Second drive gear23bis provided on rotating shaft23aof second servo motor23. Third gear26is rotatably provided on main body21bbeneath third sprocket63and fourth sprocket64. Third outside gear26awhich meshes with second drive gear23bis formed on the outer circumference of third gear26. Third inside gear26bis formed closer to the inside than the outer circumference of third gear26.

Fourth gear27is rotatably provided on main body21bbetween third sprocket63and fourth sprocket64, and third gear26. Fourth gear27meshes with third sprocket gear63b, fourth sprocket gear64b, and third inside gear26b. According to this configuration, the rotation speed of second servo motor23is reduced and transmitted to third sprocket63and fourth sprocket64, and, third sprocket63and fourth sprocket64rotate in synchronization.

Downstream side retaining member33is block-shaped and is provided on insertion section21dof main body21babove the rear section of rail38. Downstream side retaining member33is attached to first support member30-1and second support member30-2, which are attached to main body21b, via shaft34-1so as to be capable of moving in the vertical direction. Coil spring35-1which biases downstream side retaining member33downward is attached to shaft34-1. Retaining section33dwhich abuts rail38on third sprocket63is formed in front of the downstream side retaining member33. According to this configuration, retaining section33dmoves toward and away from the rail38. As illustrated inFIG. 5, penetrating section33bis formed as a cutout on the bottom portion of the rear end of retaining section33d.

Upstream side retaining member32is block-shaped and is provided along the top surface of the rear section of rail38. Upstream side retaining member32is attached beneath the rear section of downstream side retaining member33via shaft34-2to be capable of moving in the vertical direction. Upstream side retaining member32is adjacent to the rear of retaining section33d. Coil spring35-2which biases upstream side retaining member32downward is attached to shaft34-2. According to this configuration, upstream side retaining member32moves toward and away from rail38. Insertion recessed section32ais formed as a cutout on the bottom portion of the rear end of upstream side retaining member32.

As illustrated inFIG. 5, stopper member31is block-shaped and is provided adjacent on the downstream side of upstream side retaining member32. Stopper member31is capable of rocking due to shaft support section31bwhich is formed in a middle portion of stopper member31being axially supported by downstream side retaining member33. Abutting section31awhich is formed to protrude downward is formed on the bottom portion of stopper member31which is closer to the front than the shaft support portion31b. The rear end of the bottom section of stopper member31is stopping section31c.

Spring36which biases stopper member31in a direction in which abutting section31aapproaches rail38is attached to downstream side retaining member33. As illustrated inFIG. 5, in relation to the conveyance direction, the apex section of fourth sprocket64is positioned between the front end of downstream side retaining member33and the rear end of stopper member31.

As illustrated inFIG. 4, lifting prevention member28is plate-shaped and is provided along the top of rail38between the third sprocket63and the second sprocket62. Shaft support portion28ais formed on the front end of lifting prevention member28, and shaft support portion28ais axially supported on shaft portion21cwhich is provided in main body21b, and, lifting prevention member28is attached to main body21bto be capable of rocking. Guide section28bwhich is bent upward is formed on the rear end of lifting prevention member28. Torsion spring29is attached to main body21babove lifting prevention member28and biases lifting prevention member28downward. The bottom surface of lifting prevention member28comes into close contact with the top surface of rail38due to torsion spring29.

Control section39controls feeder21and controls the rotation of first servo motor22and second servo motor23. Control section39includes a microprocessor and a driver which supplies the drive currents to servo motors22and23.

First sensor65which detects the presence or absence of carrier tape900and outputs that detection signal to control section39is provided in main body21bon the downstream side of third sprocket63. First sensor65is a sensor which detects a boundary portion between conveyance tape910and standby tape920which are described later. Second sensor66which detects the presence or absence of carrier tape900and outputs that detection signal to control section39is provided in main body21bon the upstream side of second sprocket62. Description will be given of the role of second sensor66later.

Hereinafter, description will be given of operations of feeder21. A worker inserts carrier tape900between the insertion recessed section32aand the rear end of rail38which are illustrated inFIG. 4. When this is done, fourth engaging protrusions64aengage with engagement holes901bwhich are formed in the leading end of the inserted carrier tape900, and the carrier tape900is conveyed to third sprocket63by fourth sprocket64. Since fourth engaging protrusions64aare only formed in a portion of the outer circumference of fourth sprocket64, when fourth engaging protrusions64aengage with engagement holes901bwhich are formed in the leading end of the inserted carrier tape900, carrier tape900moves to the third sprocket63side intermittently. Therefore, since carrier tape900is not suddenly pulled to the third sprocket63side, this is safe.

The leading end of carrier tape900which is supplied to the downstream side by fourth sprocket64enters below retaining section33dfrom penetrating section33b. When engagement holes901bwhich are formed in the leading portion of carrier tape900are engaged with third engaging protrusions63a, carrier tape900is conveyed to second sprocket62by third sprocket63. Since third engaging protrusions63aare formed along the entire circumference of the outer circumference of third sprocket63, carrier tape900is conveyed to second sprocket62side in a short time. Note that, conveyance tape910is pushed from above by retaining section33dand the engagement between the engagement holes901band third engaging protrusions63ais not released.

The leading end of carrier tape900enters beneath lifting prevention member28from between guide section28band rail38. The leading end of carrier tape900is suppressed from lifting up from rail38by lifting prevention member28and is conveyed to second sprocket62.

When second sensor66detects the leading end of carrier tape900which is conveyed thereto by third sprocket63, first servo motor22and second servo motor23intermittently rotate sprockets61to64by component pitch P1(illustrated in FIG.2). When engagement holes901bwhich are formed on the leading end section of carrier tape900engage with second engaging protrusions62a, carrier tape900is fed to tape peeling unit70by second sprocket62and cover tape902is peeled from carrier tape900by tape peeling unit70. When engagement holes901bwhich are formed on the leading end section of carrier tape900engage with first engaging protrusions61a, components which are stored in carrier tape900are sequentially positioned in supply position21aso as to be supplied by first sprocket61.

While conveyance tape910which is carrier tape900being conveyed is being conveyed by the feeder21, as illustrated inFIG. 5, conveyance tape910presses abutting section31a, stopper member31crocks in a direction acting against the biasing force of spring36such that stopping section31capproaches rail38, thus the rear-bottom end of stopper member31contacts the top surface of conveyance tape910.

The worker inserts standby tape920, which is the carrier tape900that stands by, between insertion recessed section32aand conveyance tape910. When this is done, since the rear-bottom end of stopper member31contacts the top surface of conveyance tape910, the tip of standby tape920abuts stopping section31cof stopper member31, conveyance to the downstream of standby tape920is prevented, and standby tape920stands by above conveyance tape910.

Standby tape920is pushed into conveyance tape910by upstream side retaining member32. Therefore, lifting of the tip of standby tape920from conveyance tape910is prevented, and the entering of the tip of standby tape920between the front end of upstream side retaining member32and the rear end of stopper member31is prevented.

Note that, conveyance tape910is wound on reel810which is on the front side. Standby tape920is wound on reel820which is on the rear side.

As shown inFIG. 6, when the tail end of conveyance tape910is conveyed closer to the downstream side than the leading end of standby tape920, standby tape920assumes a state of being on rail38, and engagement holes901bwhich are formed in the leading section of standby tape920are engaged with fourth engaging protrusions64a. The leading end of carrier tape900which is supplied by fourth sprocket64enters below retaining section33dfrom penetrating section33b. When engagement holes901bwhich are formed in the leading section of carrier tape900are engaged with third engaging protrusions63a, carrier tape900is conveyed to second sprocket62by third sprocket63and is conveyed to supply position21aas described above.

When the leading end of carrier tape900which was standby tape920presses the abutting portion31a, stopper member31rocks in a direction against the biasing force of spring36, such that stopping portion31capproaches the top surface of rail38, and the rear-bottom end of stopper member31comes into contact with the new conveyance tape910(the old standby tape920).

The worker removes the used reel810for which all of the conveyance tape910has been supplied from reel holding section50and causes the reel holding section50to hold the reel820on which new standby tape920is wound. The worker sets the new standby tape920by inserting the leading end of the new standby tape920between insertion recessed portion32aand conveyance tape910. As described above, since the rear-bottom end of stopper member31contacts the new conveyance tape910, the tip of the new standby tape920abuts stopping portion31cof stopper member31, conveyance to the downstream of the standby tape920is prevented, and standby tape920stands by above conveyance tape910.

Next, tape peeling unit70of the present embodiment will be described usingFIGS. 7 to 14. As illustrated inFIG. 7, at the tip of feeder21, tape peeling unit70for peeling cover tape902of carrier tape900which is fed to the component supply position21ais fixed to feeder main body21bin a detachable manner.

Multiple types of tape peeling unit70are prepared corresponding to the types of carrier tapes900, and a tape peeling unit70corresponding to the type of carrier tape900which is mounted in feeder21is attached to feeder main body21b. In the embodiment, as illustrated inFIG. 12, three types of tape peeling units70A,70B, and70C are prepared.

As illustrated inFIGS. 8 to 11, tape peeling unit70includes unit main body71having a U-shaped cross section with a downward facing opening, the front and rear of both side walls71aand71bof unit main body71are fixed to both side surfaces of feeder main body21busing a fastening device such as a screw, and carrier tape900is guided between both of the side walls71aand71b. Cutout71c1which includes component supply position21ais formed in a predetermined position in upper wall71cof unit main body71, such that it is possible to remove a component from storage section901aof carrier tape900.

Plate-shaped cutter member72, which has a cutting edge72awith a sharp tip which peels the cover tape902of the carrier tape900, is fixed to upper wall71cof unit main body71in a position above carrier tape900so as to cover cutout71c1. Both edges of cover tape902are adhered to the carrier tape900and cutting edge72aof cutter member72is provided in a position corresponding to one edge (the edge at the engagement hole901bside) of cover tape902. Cutting edge72aof cutter member72is interposed between base tape901and cover tape902as carrier tape900is fed so as to peel one edge of cover tape902while maintaining the adhered state of the other edge of cover tape902.

Here, as illustrated inFIG. 13, although the multiple types of carrier tapes900have engagement holes901bof the same pitch, the sizes of storage sections901aand the components which are stored therein are different. Therefore, the width dimensions of cover tapes902which cover storage sections901aalso differ from each other according to the size of storage sections901a, and the position of the one edge (the adherence position) of cover tape902which is peeled by cutting edge72aof cutter member72differs for each type of carrier tape900.

With the above configuration, as illustrated inFIG. 13, cutting edge72aof cutter member72is positioned separated from the center of carrier tape900by an amount d1, d2, or d3corresponding to one edge of cover tape902. In this manner, the cutting edge of cutter member72is positioned in a different position in the width direction of each of the carrier tapes900based on the type of the multiple types of tape peeling units70A,70B, and70C.

Also, plate-shaped fold-over member73which erects and folds over one of the edges of peeled cover tape902is fixed on upper wall71cof unit main body71such that a small gap is formed between fold-over member73and the top surface of carrier tape900. Inclined surface73awhich is inclined in the width direction of cover tape902is formed on fold-over member73across a predetermined length along the feeding direction of carrier tape900. Inclined surface73aof fold-over member73protrudes in the width direction of cover tape902in relation to cutter member72.

Fold-over member73folds over one of the edges of cover tape902which is peeled by cutting edge72aof cutter member72such that the edge of cover tape902is gradually erected by inclined surface73a, thus opening (exposing) the top surface of storage section901ain which the component which is supplied to the component supply position21ais stored. As illustrated inFIG. 14, cover tape902which is folded over by inclined surface73aof fold-over member73is forcefully inserted into the gap between fold-over member73, a partition of the main body71extending in the width direction of the carrier tape900, and the top surface of carrier tape900(base tape901) such that the open state of the top surface of storage section901ais maintained.

By adopting this configuration, as with conventional art, individual collection mechanisms which fold over and collect cover tape902become unnecessary, and cover tape902becomes capable of being collected together with base tape901of carrier tape900. Note that,74inFIG. 7is a guide for collecting cover tape902and carrier tape900, and is fixed to the tip portion of feeder main body21b.

In tape peeling unit70, identification mark75corresponding to the type of carrier tape900is formed on the inside of one of the side walls71aof unit main body71, and identification sensor76which identifies identification mark75is attached to the side surface of feeder main body21bwhich faces the inside of the side wall71a.

In the embodiment, for example, as illustrated inFIGS. 12(A) to (C), codes with black and white coloring are lined up in two rows in the feeding direction of carrier tape900to form identification mark75, and identification mark75is identified using two identification sensors76aand76bwhich are formed of two reflection sensors. The two-row code which is identified by identification sensors76aand76bidentifies the type of the three types of tape peeling units70according to the combinations “white-white”, “white-black”, and “black-white”.

Tape peeling unit70of the configuration described above which matches the type of carrier tape900to be mounted in feeder21is attached to feeder main body21bby an operator outside of the device.

Feeder21to which tape peeling unit70(70A,70B, or70C) is attached is set in component supply section20, power is supplied to the feeder21side from the main body side of component mounting device100via communication connector80(refer toFIG. 7), and necessary information such as the feeder ID is transmitted from the feeder21side to the main body side of component mounting device100. Accordingly, the information of the component which is fed by carrier tape900which is mounted in feeder21is acquired based on the serial ID of feeder21and stored in control device200of component mounting device100. At the same time, the information of the type of tape peeling unit70which is identified by identification sensor76(76aand76b) which is provided in feeder21is stored in control device200of component mounting device100.

Note that, feeder mark77indicating a reference position of feeder21is formed on feeder main body21b. For example, feeder mark77is formed on the top surface of the tip of feeder21, and hole78is formed in upper wall71cand fold-over member73of unit main body71which is attached to the tip portion of feeder21such that it is possible to image feeder mark77from above using board camera46.

When feeder21of component supply section20is set, control device200compares the information of the component which is acquired based on the serial ID and the information which is identified by identification sensor76(76aand76b) using comparison section200aof control device200, and, when the information does not match, that is, when it is determined that a tape peeling unit70which does not correspond to the carrier tape (the component)900which is fed by feeder21is attached, a warning is issued to the operator and the operator is urged to exchange the tape peeling unit70.

Note that, in this case, a display section may be provided on the top surface of feeder main body21b, and the comparison result obtained by comparison section200amay be displayed on this display section. Accordingly, the operator can identify the comparison result using the display of the display section.

Next, based onFIG. 15, description will be given of the image processing performed by control device200when the carrier tape which supplies the components is switched from a first carrier tape to a second carrier tape. When the carrier tape is switched, in order to correct the individual differences between carrier tapes and shifting of components caused by the meshing of sprockets and the carrier tape, image processing is performed before picking up the first component of the second carrier tape, and the suction nozzle can pick up the component at the center of the component regardless of the individual differences between the carrier tapes and the like.

InFIG. 15, when the tail end of the first carrier tape is detected by first sensor65which serves as the detection sensor (step S100), and the leading end of the following second carrier tape is subsequently detected by first sensor65(step S102), in the next step S104, the sprocket which engages with the second carrier tape is rotated rapidly by a predetermined amount, such that the leading end of the second carrier tape is fed to a point before engaging with the sprocket.

Next, in step S106, a meshing operation which causes the sprocket to mesh with engagement holes901bof the second carrier tape is performed, the sprocket meshes with engagement holes901bof the second carrier tape, and the sprocket is positioned at an origin point. Next, in step S108, the sprocket is rotated by a fixed amount such that the first component is supplied to component supply position21a.

At this time, due to the sprocket being rotated by a fixed amount from the origin point position, the center position of the first component which is stored in storage section901aof the second carrier tape should be positioned to the defined target position of component supply position21a; however, due to the individual differences between feeders21or the like, a case in which the center position of the component shifts in relation to the target position can occur.

In step S110, moving body45is moved, board camera46is positioned in a position above component supply position21a, the first component is imaged by board camera46, the center position of the component is identified using image processing, and the shift amount (ΔX and ΔY) of the center position of the component in relation to the target position is acquired and stored in the memory of control device200. In this case, it is possible to move moving body45such that the board camera46is positioned above component supply position21ain advance in the time before step S108.

In step S112, moving body45is moved based on the offset amount between the center of board camera46and the center of the suction nozzle, and moving body45is subjected to positional correction control by the positional shift amount (ΔX and ΔY) which is stored in the memory of control device200. Accordingly, the center of the first component is positioned in a position which matches the target position.

In this state, the suction nozzle is lowered and the suction nozzle picks up the first component. At this time, due to the correction of the positional shift amount (ΔX and ΔY) described above, the suction nozzle reliably picks up the component at the center of the component. Subsequently, the component picked up by the suction nozzle is mounted to a predetermined position of printed circuit board B. Note that, since it is possible to resolve the individual differences between the first carrier tape and the second carrier tape by subjecting the center of the first component to positional correction in relation to component supply position21a, it is possible to substantially accurately supply the second component onward to component supply position21abased on the feeding pitch of carrier tape900using the sprockets. Therefore, even if image processing of the second component onward is omitted, there is no problem.

In this manner, since the center position of the component is identified by performing image processing before picking up the first component when the carrier tape is switched, even if the carrier tape is switched, it is possible for the suction nozzle to accurately pick up the component at the center of the component. Accordingly, it becomes possible to reduce pickup errors of the components regardless of the individual differences between carrier tapes.

Note that, identification of the center position of the component by board camera46may be performed once or twice while components are being supplied by the carrier tape. This is because the load of pulling out the carrier tape changes as the remaining amount of components in the carrier tape decreases, which causes shifting in the feeding direction of the carrier tape.

In this manner, since the center position of the component is identified by performing image processing once or twice during feeding of the carrier tape before picking up the first component when the carrier tape is switched, it is possible for the suction nozzle to always accurately pick up the component at the center of the component. Further, compared to a case in which each component to be picked up is vision processed, there is no lengthening of the cycle time.

In the embodiments described above, description is given of an example in which feeding the first carrier tape and the second carrier tape to component supply position21ais performed continuously without splicing by using feeder21which is provided with sprocket61(62) which feeds the component which is stored in the first carrier tape to component supply position21aby engaging with the first carrier tape, and sprocket63(64) which engages the second carrier tape which is standing by and feeds the second carrier tape to a position which engages with the sprocket61. However, for the present disclosure, the configuration of feeder21is not particularly limited, and any configuration may be adopted as long as feeder21is capable of continuously feeding the first carrier tape and the second carrier tape to component supply position21awithout splicing, such as a configuration without providing sprockets.

In this manner, the disclosure is not limited to the configuration described in the embodiments described above, and various embodiments may be adopted within a scope that does not depart from the gist of the present disclosure described in the claims.

INDUSTRIAL APPLICABILITY

The present disclosure of a feeder is suitable for use as an item capable of continuously feeding a first carrier tape and a second carrier tape to a component supply position without splicing.

REFERENCE SIGNS LIST