JP7308384B2 - Parts feeder - Google Patents

Description

The present invention relates to a component supply device that supplies components in a storage section formed in a carrier tape to a component mounting device.

2. Description of the Related Art A tape feeder is widely used as a component supply device that supplies components to a component mounting device that mounts components on a substrate, and that supplies components in a recessed storage portion formed in a carrier tape to a component pick-up position. The carrier tape is supplied in a state in which the upper surface of the storage section storing the components is sealed with a cover tape. In the tape feeder, the cover tape is peeled off in front of the component pick-up position in the process of feeding the carrier tape, thereby opening the storage section and enabling the component pick-up. Then, the cover tape peeled off from the cover tape is fed in a direction opposite to the tape feeding direction by the cover tape feed mechanism and collected in the cover tape storage section (see Patent Documents 1 and 2, for example).

JP 2010-157647 A JP 2012-74749 A

In the configuration in which the cover tape separated from the carrier tape is fed in the tape feeder in the direction opposite to the tape feeding direction, the cover tape is covered with an opening/closing cover that freely opens and closes above the component pickup position, thereby feeding the cover tape. is guided. That is, the carrier tape of the cover tape is peeled off with the opening/closing cover opened, the peeled cover tape is guided to the cover tape feeding mechanism, and then the opening/closing cover is closed. In such a configuration, when the cover tape separated from the carrier tape is guided to the cover tape feeding mechanism and set, the cover tape is likely to be greatly slackened and bent upward. If the cover is closed and the carrier tape is transported while the opening/closing cover is still deformed, it becomes difficult to separate the cover tape normally. I had a problem that I couldn't do it.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a component supply device capable of preventing problems caused by slackness of a cover tape peeled from a carrier tape and capable of peeling off a normal cover tape.

The parts supply apparatus of the present invention is configured to open the storage part by peeling off the cover tape covering the upper surface of the carrier tape, which has the storage part storing the parts and the feeding holes for transportation formed at regular intervals, and to open the parts pick-up position. A component supply device for supplying components to a component mounting device from the storage portion opened in the above, the main body portion provided with a tape transport path for guiding the carrier tape from the insertion port to the discharge port, and the feed hole A first carrier tape conveying unit having a sprocket that engages and rotates to convey the carrier tape to a component pick-up position, and a cover tape peeler that separates the cover tape from the carrier tape upstream of the component pick-up position. a pair of rollers for ejecting the cover tape stripped by the cover tape stripping section; and a cover that covers the upper side of the tape transport path and engages the carrier tape with the sprocket , wherein the pair of A roller was positioned below the cover and an opening was formed in the cover to allow access to at least one of the pair of rollers.

According to the present invention, problems due to slackness of the cover tape peeled from the carrier tape can be prevented, and normal cover tape peeling can be performed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration explanatory diagram showing the overall configuration of a component supply device according to one embodiment of the present invention; 1 is a partial cross-sectional view of a component supply device according to one embodiment of the present invention; FIG. 1 is a plan view of an opening/closing cover of a component feeding device according to an embodiment of the present invention; FIG. 1 is a plan view of an opening/closing cover of a component feeding device according to an embodiment of the present invention; FIG. 1 is a vertical cross-sectional view of an opening/closing cover of a component supply device according to an embodiment of the present invention; 1 is a perspective view of an opening/closing cover of a component feeding device according to an embodiment of the present invention; FIG. 1 is a partial cross-sectional view of a component supply device according to one embodiment of the present invention; FIG. 2 is an explanatory diagram of a driving mechanism of a tape conveying section in a component supply device according to an embodiment of the present invention; Functional explanatory diagram of the component supply device of one embodiment of the present invention Functional explanatory diagram of the component supply device of one embodiment of the present invention FIG. 4 is a procedure explanatory diagram of a short tape loading operation in the component supply device according to the embodiment of the present invention; FIG. 4 is a procedure explanatory diagram of a short tape loading operation in the component supply device according to the embodiment of the present invention; FIG. 4 is a procedure explanatory diagram of a short tape loading operation in the component supply device according to the embodiment of the present invention; 1 is a block diagram showing the configuration of a control system of a component supply device according to an embodiment of the present invention; FIG. FIG. 4 is a flowchart of tape transport processing in autoload mode in the component supply device according to one embodiment of the present invention; FIG. 4 is a flowchart of tape transport processing in a splicing mode in the component supply device according to one embodiment of the present invention; FIG. 5 is a flowchart of tape transport processing in the short tape mode in the component supply device according to the embodiment of the present invention; Explanatory drawing of a modified example of the opening/closing cover used in the component supply device of the embodiment of the present invention Explanatory drawing of a modified example of the opening/closing cover used in the component supply device of the embodiment of the present invention Explanatory drawing of a modified example of the opening/closing cover used in the component supply device of the embodiment of the present invention 1 is a perspective view of a carrier tape to be worked on in a component supply device according to an embodiment of the present invention; FIG. FIG. 4 is an explanatory diagram of a modified example of the attachment position of the connecting portion detection means in the component supply device according to the embodiment of the present invention; FIG. 4 is an explanatory diagram of a modified example of the attachment position of the connecting portion detection means in the component supply device according to the embodiment of the present invention;

Embodiments of the present invention will now be described with reference to the drawings. First, referring to FIG. 1, the overall configuration of a tape feeder 1, which is a component supply device according to this embodiment, will be described. The tape feeder 1 has a function of supplying components stored in a carrier tape 20 for supplying components to a component mounting apparatus (not shown).

As shown in FIG. 21, the carrier tape 20 is formed with storage portions 20b storing components P to be mounted and feed holes 20c for transportation at regular intervals. The carrier tape 20 is conveyed by rotating a sprocket provided with an engagement pin that engages with the feed hole 20c. The upper surface of the carrier tape 20 is covered with a cover tape 20a for sealing the storage portion 20b.

The cover tape 20a is adhered to the carrier tape 20 via an adhesion portion formed by an adhesive at the adhesion interface with the carrier tape 20. As shown in FIG. When the cover tape 20a is peeled off from the carrier tape 20, traces 20d and 20e of the adhesive portions are formed on the adhesion interfaces between the carrier tape 20 and the cover tape 20a (the front surface of the carrier tape 20 and the rear surface of the cover tape 20a), respectively. It remains and adheres.

When supplying the components P by the tape feeder 1, the cover tape 20a is peeled from the carrier tape 20 to open the storage portion 20b, and the storage portion opened at the component take-out position set near the downstream end of the tape feeder 1. The component P is taken out from 20b and supplied to the component mounting apparatus. In the present embodiment, the carrier tape 20 supplied by the tape feeder 1 is not limited to the hoop-shaped carrier tape 20 which is a normal supply form, but also has irregular length dimensions as shown in FIG. A short tape 20* cut at TL is also included. For this reason, in the present embodiment described below, consideration is given so that the tape mounting work can be performed with good workability for such a short tape 20*.

The tape feeder 1 is constructed by arranging elements described below in a main body 2 made of a plate-like frame. These elements are covered by side covers (not shown) provided on both sides. As shown in FIG. 1, the main body 2 has a tape transport path 4 that guides the carrier tape 20 from an insertion port 4a opened at the bottom on the upstream side to a discharge port 4b set near the edge of the upper surface on the downstream side. is provided.

The carrier tape 20 introduced (arrow a) into the tape conveying path 4 from the insertion port 4a is conveyed to the upper surface of the main body 2 through the oblique section provided in the middle, and reaches the component extraction position 4c. At the component pick-up position 4c, the nozzle of the component mounting apparatus M (not shown) moves up and down (arrow b) to pick up the component, whereby the component P is taken out from the storage section 20b. The picked component P is transferred to the component mounting apparatus by the mounting head (arrow c) and mounted on the substrate to be worked. Conveyance of the carrier tape 20 in the supply of the components described above is performed by the tape conveying section 3 described below.

The tape transport section 3 has a first motor 5 , a transport sprocket 6 , a positioning sprocket 7 and a discharge sprocket 8 . By driving the transport sprocket 6, the positioning sprocket 7 and the discharge sprocket 8 by the first motor 5, which is a drive source, the carrier tape 20 inserted from the insertion port 4a is transported through the tape feeder 1 to reach the component pick-up position 4c. is positioned at The tape conveying section 3 is covered with an opening/closing cover (cover) 9 that can be opened and closed. This is done by pressing against the sprocket 8 .

In the tape conveying process of conveying the carrier tape 20 along the tape conveying path 4 by the tape conveying section 3, the cover tape 20a peeled off from the carrier tape 20 is folded back toward the upstream side, and the cover tape provided on the main body section 2 is folded back. It is collected into the storage portion 2f. The carrier tape 20 after the components P have been taken out at the component take-out position 4c is discharged to the downstream side of the tape feeder 1 by the discharge sprocket 8 via the front cover 2h arranged on the end surface of the main body 2.

That is, the positioning sprocket 7 is a first sprocket that engages with the feed holes 20c of the carrier tape 20 and rotates to transport the carrier tape 20 to the downstream component extraction position 4c. The ejection sprocket 8 is disposed downstream of the component ejection position 4c, and rotates in engagement with the feed holes 20c of the carrier tape 20 to convey the carrier tape 20 from the component ejection position 4c to the ejection port 4b. sprocket. As described above, in the present embodiment, the component extraction position 4c is arranged between the positioning sprocket 7, which is the first sprocket, and the ejection sprocket 8, which is the second sprocket.

By adopting such a configuration, even when parts are supplied using the short tape 20* shown in FIG. 21, all the storage portions 20b of the carrier tape 20 can be positioned at the part pick-up position 4c. Therefore, there is no storage portion 20b in which parts cannot be taken out at the part take-out position 4c, and the occurrence of parts loss can be prevented.

The positioning sprocket 7 and the first motor 5 are arranged downstream of the tape transport path 4 and constitute a first carrier tape transport section 15 that transports the carrier tape 20 to the component pickup position 4c. Further, in this embodiment, a second carrier tape transport section 16 is provided for transporting the carrier tape 20 introduced from the insertion port 4a from the upstream side of the tape transport path 4 to the first carrier tape transport section 15 . That is, in the vicinity of the downstream side of the insertion port 4a in the tape transport path 4, a second carrier tape transport section 16 configured to rotationally drive the tape loading sprocket 10 by a second motor 11 is arranged.

In the oblique portion of the tape conveying path 4 between the first carrier tape conveying portion 15 and the second carrier tape conveying portion 16 (see the climbing section 4e shown in FIG. 7), both of which use optical sensors. A tape detector 13 and a second tape detector 14 are provided. The first tape detection unit 13 is carrier tape detection means for detecting the carrier tape 20 transported from the upstream side of the tape transport path 4 . Here, presence of the carrier tape 20 at the position of the first tape detection section 13 is detected by optically detecting a predetermined portion of the carrier tape 20 .

The second tape detection unit 14 is a connecting portion detecting means for detecting a connecting portion connecting the preceding carrier tape 20 and the following carrier tape 20 . That is, in the so-called splicing method, in which two carrier tapes 20, which are preceding and succeeding among the carrier tapes 20 to be supplied, are preliminarily connected and continuously supplied, a connecting member (splicing tape) for connecting the two carrier tapes 20 is optically connected. It is detected that the connecting portion has reached the second tape detecting portion 14 by detecting the connecting portion.

Instead of providing both the first tape detection section 13 and the second tape detection section 14, the first tape detection section 13 may detect both the carrier tape 20 and the connecting portion. . That is, in this case, the first tape detecting section 13 is arranged in the tape conveying path 4 between the first carrier tape conveying section 15 and the second carrier tape conveying section 16, and passes through the tape conveying path 4. It is a carrier tape detecting means capable of detecting the carrier tape 20 and the tape conveying path 4 .

A convex portion 2a for connection with a component mounting apparatus M (see FIG. 14) and mounting rails 2b are provided on the lower surface of the main body portion 2. As shown in FIG. By attaching the mounting rail 2b to a feeder base provided in the component supply section of the component mounting apparatus M, the tape feeder 1 is set at a predetermined position in the component supply section. A connector 2c, an air joint 2d, and a hook 2e are provided on the convex portion 2a. When the tape feeder 1 is set on the feeder base, the connector 2c and the air joint 2d are fitted to the other side (component mounting apparatus side). connected state. At this time, the tape feeder 1 is positionally fixed to the feeder base by the hook 2e. In this connected state, it is possible to supply power and air to the tape feeder 1 from the component mounting apparatus, and to exchange signals between the component mounting apparatus and the tape feeder 1 .

A feeder control section 12 (control section) for controlling the operation of the tape feeder 1 is incorporated in the convex portion 2a. When the tape feeder 1 is connected to the component mounting apparatus M, the feeder control section 12 is electrically connected to the device control section of the component mounting apparatus M via the connector 2c. As a result, the operation command from the device control section of the component mounting apparatus M is transmitted to the tape feeder 1, and the operation feedback signal of the component feeding operation by the tape feeder 1 is transmitted to the component mounting apparatus M.

An operation panel 2g is provided on the upper surface of the main body 2 so as to be positioned on the upstream side. The operation panel 2g is provided with a button 41 connected to the feeder control section 12, a display section 42, and a lamp 43 (see FIG. 14). By operating the button 41, a predetermined operation input to the tape feeder 1 is performed. The display unit 42 is a small display panel, a segment type display unit, or the like, and displays the operating state of the tape feeder 1 and the like. A lamp 43 is an indicator light for notification, and notifies an abnormality warning or the like by lighting.

Next, with reference to FIGS. 2 to 6, detailed constructions of the tape conveying section 3 and the opening/closing cover 9 will be described. As shown in FIG. 2, an opening/closing cover 9 is attached to the upper end surface of the main body 2 so as to cover the downstream side of the tape transport path 4 and can be opened and closed. As shown in FIG. 6, the opening/closing cover 9 is an elongated member having a substantially gate-shaped cross section (see FIG. 5) with an open bottom side.

The opening/closing cover 9 is provided with a pair of side portions 9g extending downward from both side ends of the top surface forming a gate shape. A locking pin 9i is provided at the upstream end of the opening/closing cover 9 to connect the pair of side surfaces 9g. Further, a pair of hanging portions 9j extending downward from the side portion 9g is provided at the downstream end portion of the opening/closing cover 9, and the hanging portions 9j are connected by a fixing pin 9h.

In FIG. 2, an opening/closing cover holding portion 17 for holding the opening/closing cover 9 is provided at the downstream end portion of the main body portion 2 . An opening/closing cover locking portion 18 for locking the upstream end of the opening/closing cover 9 is provided upstream of the opening/closing cover holding portion 17 in the main body portion 2 . When the opening/closing cover 9 is attached to the main body 2, the fixing pin 9h at the downstream end of the opening/closing cover 9 is rotatably supported in a vertically elongated hole provided in the opening/closing cover holding portion 17, and the opening/closing cover holding portion 17 is biased downward by a biasing spring 17a.

When the opening/closing cover 9 is closed with respect to the main body 2 , the locking pin 9 i provided at the upstream end of the opening/closing cover 9 is locked by the opening/closing cover locking portion 18 . The opening/closing cover locking portion 18 includes a locking block 18a provided with a locking member 18c capable of locking the locking pin 9i and pivotally supported by a pivot pin 18b. A biasing spring 18d is connected to the locking block 18a to push down the locking member 18c. When the opening/closing cover 9 is closed, the locking pin 9i is pushed down by the locking member 18c and is locked. be stopped.

FIG. 3 shows the upper surface of the opening/closing cover 9 attached to the main body 2 in this way. 4 shows the arrangement of openings on the upper surface of the opening/closing cover 9. As shown in FIG. As shown in FIG. 4, the upper surface of the opening/closing cover 9 is provided with a planar first cover portion 9a and a planar second cover portion 9b. The first cover portion 9 a and the second cover portion 9 b cover the upper side of the tape conveying path 4 when the opening/closing cover 9 is attached to the main body portion 2 . That is, the opening/closing cover 9 has a cover portion that covers the upper side of the tape conveying path 4 .

Further, on the upper surface of the opening/closing cover 9, a first opening 9c, a second opening 9d, a first relief portion 9e, and a second relief portion 9f are provided. The first opening 9c is an opening for taking out a component, and the downstream end region of the first opening 9c coincides with the component taking-out position 4c in the tape transport path 4. As shown in FIG. A downstream portion of the tape guide 23 described below is fitted into the first opening 9c on the upstream side of the component pick-up position 4c. As will be described later, the downstream end of the tape guide 23 is used for peeling the cover tape 20a from the carrier tape 20 by folding back the cover tape 20a at the end when the carrier tape 20 is set manually. It functions as the part 23a.

The second opening 9d is formed at a position corresponding to the driven roller 22, which will be described below, so that the driven roller 22 can be accessed from above when the opening/closing cover 9 is closed. When the opening/closing cover 9 is lowered with respect to the main body 2 and closed, the first escape portion 9e and the second escape portion 9f are arranged so that the engagement pin 7a of the positioning sprocket 7 and the engagement pin of the ejection sprocket 8 are respectively engaged. It is provided to escape 8a.

FIG. 5 shows cross sections AA to EE of the opening/closing cover 9 shown in FIG. That is, in each cross-section shown in FIG. 5, the upper surface, the side surface 9g, and the locking pin 9i, which constitute the gate-shaped cross-section of the opening/closing cover 9, appear. The first cover portion 9a, the first relief portion 9e, and the driven roller 22 on the upper surface appear in the AA cross section shown in FIG. 5(a). The first opening 9c provided on the upper surface and the driven roller 22 appear in the BB section shown in FIG. 5(b). The first opening 9c, the second relief portion 9f and the driven roller 22 provided on the upper surface appear in the CC cross section shown in FIG. 5(c). The second opening 9d provided on the upper surface and the driven roller 22 appear in the DD cross section shown in FIG. 5(d). In the EE section shown in FIG. 5(e), the second cover portion 9b and locking pin 9i on the upper surface appear.

A plate-shaped tape guide 23 is provided in the tape conveying section 3 along the upper surface of the tape conveying path 4 so as to cover the conveying sprocket 6 and the positioning sprocket 7 above. The tape guide 23 has a function of guiding the upper surface of the carrier tape 20 conveyed along the tape conveying path 4 . The tape guide 23 is provided with an opening 23b that allows the tape transport path 4 to communicate upward. Above the opening 23b, a pair of rollers are arranged in which a driving roller 21 and a driven roller 22 for peeling and discharging the cover tape 20a are meshed.

At a position facing the opening 23b on the bottom surface of the tape transport path 4, an air ejection hole (not shown) having a function of ejecting air at a predetermined timing is opened. The cover tape 20a can be introduced between the drive roller 21 and the driven roller 22 by blowing up the tip of the cover tape 20a stuck to the carrier tape 20 by the air jetted from the air ejection holes. By rotating the drive roller 21 and the driven roller 22 in this state, the cover tape 20a is separated from the carrier tape 20, and the separated cover tape 20a is transported through the cover tape discharge path 24 to the cover tape storage portion 2f. can be discharged to

Therefore, the driving roller 21 and the driven roller 22 have a function as a peeling section for peeling the cover tape 20a from the carrier tape 20 upstream of the component picking position 4c, and the cover tape 20a peeled by this peeling section is removed as a cover tape. It has a function of discharging to the storage section 2f. That is, in this case, the peeling section including the driving roller 21 and the driven roller 22 has an automatic peeling function for automatically peeling off the cover tape 20a. This automatic peeling function is used in an autoload mode in which the carrier tape 20 is automatically loaded.

One driving roller 21 of the pair of rollers is fixedly arranged on the main body 2 and is rotationally driven by a driving mechanism (see FIG. 8) having a first motor 5 as a driving source. Of the pair of rollers, the other driven roller 22 is pivotally supported by the side surface 9g of the opening/closing cover 9, and is rotated by meshing with the drive roller 21. As shown in FIG. That is, in the present embodiment, the opening/closing cover 9 has a driven roller 22 , so that the driven roller 22 can be attached and detached together with the opening/closing cover 9 . setting of the cover tape 20a is facilitated.

A positioning sprocket 7 as a first sprocket, a discharge sprocket 8 as a second sprocket, and a pair of rollers, a driving roller 21 and a driven roller 22, are arranged below the opening/closing cover 9. As shown in FIG. With such a configuration, the driving roller 21 and the driven roller 22 can be arranged at positions close to the component pickup position 4c, and the configuration is suitable for the short tape 20*.

FIG. 7 shows a state in which the opening/closing cover 9 is opened to expose the tape conveying section 3 and the tape conveying path 4. As shown in FIG. That is, first, the locking block 18a in the opening/closing cover locking portion 18 is rotated around the pivot pin 18b (arrow d) to release the locking of the locking pin 9i by the locking member 18c. As a result, the opening/closing cover 9 with the fixing pin 9h on the downstream side supported by the opening/closing cover holding portion 17 can be opened (arrow e). At this time, the driven roller 22 is disengaged from the driving roller 21 and moves together with the opening/closing cover 9 . In this state, the tape transport path 4 and the tape guide 23 covering the tape transport path 4 are exposed.

As shown here, in the tape transport path 4, the downstream range from the apex of the positioning sprocket 7 is a flat section 4d where the tape transport path 4 is flat, and the upstream range of the flat section 4d extends from the bottom to the top of the main body 2. It is an uphill section 4e. A component pick-up position 4c for picking up the component P is arranged in the flat section 4d. A driving roller 21 and a driven roller 22, which are a pair of rollers, are arranged in a space sandwiched between the upstream climbing section 4e and the opening/closing cover 9. As shown in FIG.

A tape guide 23 that covers the tape transport path 4 is provided separately from the opening/closing cover 9 and fixed to the main body 2 above the tape transport path 4 upstream of the component pick-up position 4c from the ascending section 4e. . An opening 23b provided in the tape guide 23 is positioned at the meshing portion between the driving roller 21 and the driven roller 22. As shown in FIG. As a result, the cover tape 20a separated from the carrier tape 20 conveyed along the tape conveying path 4 can be sandwiched between the drive roller 21 and the driven roller 22 and discharged.

When the carrier tape 20 is loaded without using the auto-loading function of the tape feeder 1, the cover tape 20a is turned around the edge of the tape guide 23 on the downstream side and folded back so that the cover tape 20a is attached to the carrier tape 20. peel from. That is, in this case, the downstream edge of the tape guide 23 functions as a peeling portion for peeling the cover tape 20a from the carrier tape 20 upstream of the component pickup position 4c (see FIG. 10). Further, the downstream edge of the tape guide 23 functions as a guide when loading the short tape 20* that has been cut short into the tape transport path 4 (see FIG. 11).

Here, with reference to FIG. 8, the configuration of the driving mechanism in the first carrier tape conveying section 15 will be described. In FIG. 8, a first transmission gear 51 is meshed with a drive gear 50 coupled to the rotating shaft of the first motor 5, and a second transmission gear 52 provided coaxially with the first transmission gear 51 is connected with a second transmission gear 52. The third transmission gear 35 is meshed. The third transmission gear 35 includes a positioning sprocket gear 31 coaxial with the positioning sprocket 7 for positioning the carrier tape 20, and a conveying sprocket gear 34 coaxial with the conveying sprocket 6 conveying the carrier tape 20 to the positioning sprocket 7 (fourth gear) are engaged.

The positioning sprocket gear 31 is meshed with a fourth transmission gear 33 for transmitting torque to a discharge sprocket gear 32 coaxial with the discharge sprocket 8 for discharging the carrier tape 20 . A fifth transmission gear 37 is meshed with the conveying sprocket gear 34 . Further, the fifth transmission gear 37 is meshed with a sixth transmission gear 38 that transmits torque to a peeling roller gear 36 that is coaxial with the driving roller 21 . Therefore, the torque of the positioning sprocket gear 31 is applied to the drive roller 21, which is a pair of rollers for feeding the cover tape 20a peeled from the carrier tape 20 by the fifth transmission gear 37, the sixth transmission gear 38, and the peeling roller gear 36. and are transmitted to the driven roller 22 .

In the above configuration, by driving the first motor 5 to generate torque, the torque is transmitted to the positioning sprocket gear 31, the discharge sprocket gear 32, the transfer sprocket gear 34, and the separation roller gear 36 via a plurality of gears. . As a result, torque is transmitted to the positioning sprocket 7, the discharge sprocket 8, the transfer sprocket 6, and the drive roller 21, which are provided coaxially with the positioning sprocket gear 31, the discharge sprocket gear 32, the transfer sprocket gear 34, and the separation roller gear .

That is, the positioning sprocket 7 as the first sprocket, the ejection sprocket 8 as the second sprocket, the transport sprocket 6 as the third sprocket, and the driving roller 21 for ejecting the cover tape 20a share a common drive source. is driven by a first motor 5 which is By sharing the drive source in this way, the drive roller 21 and the driven roller 22 for discharging the cover tape 20a can be arranged at positions close to the component pick-up position 4c, making it suitable for using the short tape 20*. A configuration can be realized.

FIG. 9 shows a state in which the carrier tape 20 is set in an autoload mode in which the carrier tape 20 is automatically loaded. That is, the leading end of the cover tape 20a is introduced between the drive roller 21 and the driven roller 22 through the opening 23b by air jet, and these rollers are rotated in this state to sandwich the cover tape 20a and the carrier tape. peel from 20; Then, the peeled cover tape 20a is discharged through the cover tape discharge path 24 into the cover tape storage portion 2f (see FIG. 1).

Next, FIG. 10 shows a state in which the carrier tape 20 is manually set. This embodiment is applied to setting the leading carrier tape 20 in a splicing mode in which a plurality of carrier tapes 20 connected by splicing are continuously supplied. In this case, with the opening/closing cover 9 opened (see FIG. 7), the leading carrier tape 20 is conveyed along the tape conveying path 4, and the leading edge is moved to the downstream side of the peeling portion 23a of the tape guide 23. reach.

Next, in this state, the cover tape 20a is manually peeled off from the carrier tape 20, and the peeled portion 23a is folded back and guided to the cover tape discharge path 24. As shown in FIG. By closing the opening/closing cover 9 in this state, the cover tape 20a is sandwiched between the drive roller 21 and the driven roller 22. As shown in FIG. As a result, the cover tape 20a can be peeled off from the carrier tape 20 and discharged into the cover tape storage portion 2f by these rollers.

11, 12, and 13 show the operation of loading the short tape 20*, which is obtained by cutting the carrier tape 20 into short pieces, into the tape feeder 1. As shown in FIG. As shown in FIG. 21, the short tape 20* to be worked on here is a short tape cut to an irregular tape length TL. Prior to the loading operation, the short tape 20* is pretreated for peeling off the cover tape 20a.

Here, only the base tape portion at the leading end of the short tape 20* is cut off so that the leading end of the peeled cover tape 20a can be guided upstream and sandwiched between the driving roller 21 and the driven roller 22. (See FIG. 11), or an additional dummy tape 20a* is spliced to the tip of the cover tape 20a (See FIG. 21) to ensure the required length for guiding the cover tape 20a upstream. In the loading operation of the short tape 20*, as shown in FIG. It is inserted upstream from the gap between the peeling portion 23a, which is an edge, and the tape transport path 4 (arrow f). That is, in the present embodiment, the opening portion of the tape transport path 4 where the peeling portion 23a is positioned serves as a short tape loading opening into which the short tape 20* is inserted.

After that, as shown in FIG. 12, the short tape 20* is inserted further upstream (arrow g), and the tip portion of the short tape 20* from which the cover tape 20a has been peeled off is substantially aligned with the position of the peeled portion 23a. . When the short tape 20* is loaded, the feed holes 20c are engaged with the positioning sprocket 7 and the engagement pins 7a and 8a of the ejection sprocket 8, respectively. Next, the leading end of the folded cover tape 20a is inserted into the cover tape discharge path 24. As shown in FIG.

Next, as shown in FIG. 13, the opening/closing cover 9 is closed and the driven roller 22 pushes down the cover tape 20a. As a result, the cover tape 20a is sandwiched between the drive roller 21 and the driven roller 22, and the cover tape 20a can be discharged into the cover tape discharge path 24. As shown in FIG. At this time, the position of the short tape 20* is manually adjusted, and the top of the short tape 20* is indexed so that the feed hole 20c in the leading portion coincides with the component pick-up position 4c.

At the same time, slack is removed from the cover tape 20a. Since the cover tape 20a is a tape that lacks rigidity and is easily bent, it is likely to become slack downstream of the driven roller 22 when the opening/closing cover 9 is closed. In such a case, the driven roller 22 is manually rotated in the slack removing direction by a finger or a work tool through the second opening 9d provided in the opening/closing cover 9, and the slack state of the cover tape 20a is removed. fix it.

That is, in this embodiment, a driving roller 21 and a driven roller 22, which are a pair of rollers, are arranged below the opening/closing cover 9, and the opening/closing cover 9 is allowed to access at least one of the driving roller 21 and the driven roller 22. It has a configuration in which a second opening 9d is formed. With this configuration, even when the opening/closing cover 9 is closed, slack in the cover tape 20a can be easily removed by adjusting the driving roller 21 and the driven roller 22 arranged below the opening/closing cover 9.例文帳に追加

Now, with reference to FIG. 14, the configuration of the control system of the tape feeder 1 will be described. 14, the feeder control section 12 is connected to the device control section of the component mounting apparatus M in a state where the tape feeder 1 is set in the component mounting apparatus M. As shown in FIG. As a result, the feeder control section 12 can exchange control signals with the tape feeder 1 . The feeder control unit 12 is connected to the first motor 5 and the second motor 11 to control them. Thereby, the operations of the first carrier tape conveying section 15 and the second carrier tape conveying section 16 are controlled.

The feeder control section 12 is connected to the first tape detection section 13 and the second tape detection section 14 to receive these detection signals. The operation control of the first carrier tape conveying section 15 and the second carrier tape conveying section 16 is executed based on these detection signals. The feeder control section 12 is also connected to the buttons 41, the display section 42, and the lamps 43 provided on the operation panel 2g.

By operating the button 41 and inputting a predetermined operation to the feeder control section 12, an operation command is issued to the first carrier tape transport section 15 and the second carrier tape transport section 16 in the tape feeder 1. FIG. The display unit 42 displays the operating state of the tape feeder 1 and the like in accordance with commands from the feeder control unit 12 . The lamp 43 lights up in accordance with a command from the feeder control section 12 to notify an abnormality warning or the like.

In this embodiment, the feeder control section 12 configured as described above controls each section of the tape feeder 1, thereby realizing three different operation modes as described below. First, the first operation mode is an autoload mode in which a plurality of carrier tapes 20 are sequentially supplied to the tape feeder 1 without splicing. In this autoload mode, the detection result of the first tape detection unit 13 is used to control the first carrier tape transport unit 15 and the second carrier tape transport unit 16 to load the subsequent carrier tape 20. It follows the preceding carrier tape 20 and conveys it to the component pick-up position 4c.

In this case, the connecting portion detection function of the second tape detecting portion 14, which is the connecting portion detecting means, is disabled. While the carrier tape 20 is being detected by the first tape detection unit 13 serving as carrier tape detection means, the carrier tape 20 is conveyed by pitch feeding by the first carrier tape conveying unit 15 to feed the carrier tape 20. The holes 20c are sequentially stopped at the part picking position 4c. When the first tape detection unit 13 no longer detects the preceding carrier tape 20, the second carrier tape conveying unit 16 follows the conveyance of the preceding carrier tape 20 by the first carrier tape conveying unit 15, and the second carrier tape conveying unit 16 detects the preceding carrier tape 20. of carrier tape 20 is conveyed.

That is, in the autoload mode, the preceding carrier tape 20 and the subsequent carrier tape 20 are not connected, and the subsequent carrier tape 20 follows the preceding carrier tape 20 to the component pick-up position 4c. The components stored on the tape 20 can be supplied to the component mounting apparatus M.

The second operation mode is a splicing mode in which the preceding and succeeding carrier tapes 20 are connected by splicing and continuously supplied to the tape feeder 1 . In this splicing mode, the carrier tape 20 is conveyed by the first carrier tape conveying section 15 to the component extraction position 4c by pitch feeding. In this splicing mode, the joint detection function of the second tape detector 14 is enabled, and if a joint is detected during the process of conveying the carrier tape 20, the component mounting apparatus M is notified to that effect.

Note that the second carrier tape conveying unit 16 may be enabled or disabled. When enabled, it is operated only when the leading carrier tape 20 is inserted into the insertion slot 4a. In the process of pitch-feeding the carrier tape 20 by the first carrier tape conveying unit 15, when the first tape detecting unit 13 no longer detects the carrier tape 20, the conveying is stopped, and the component mounting apparatus M detects that the tape has run out. to notify.

The third operation mode is a short tape mode in which the short tape 20* shown in FIG. 21 is supplied. In the short tape mode, the short tape 20* is conveyed by the first carrier tape conveying unit 15 by pitch feeding. In this short tape mode, both the carrier tape detection function by the first tape detection section 13 and the connecting portion detection function by the second tape detection section 14 are disabled. The first carrier tape conveying unit 15 feeds the short tape 20* by pitch regardless of whether the carrier tape 20 is detected by the first tape detecting unit 13 or not.

Next, the processing flow in the aforementioned autoload mode will be described with reference to FIG. First, the tape feeder 1 is in a standby state waiting for an operation command from the component mounting apparatus M (ST1), and in this state, the presence or absence of a command is monitored (ST2). If there is no command here, it returns to (ST1) and continues waiting. In (ST2), when there is a tape feed command from the component mounting apparatus M, the first carrier tape transport section 15 is operated to transport the carrier tape 20 by one pitch (ST3).

Next, the presence or absence of the carrier tape 20 is determined from the detection result of the first tape detection section 13 (ST4). If the carrier tape 20 is present, the process returns to (ST1) and waits for the next command. Also, if the carrier tape 20 is not available, the fact is notified to the component mounting apparatus M (ST5). Upon receiving this notification, the component mounting apparatus M executes the following processing.

First, the component mounting apparatus M starts counting down the tape feed amount of the carrier tape 20 by the first carrier tape transport section 15 . Here, the counter is set so that the count value becomes zero at the timing when the trailing end of the carrier tape 20 passes the component pickup position 4c. Then, when the trailing end of the carrier tape 20 passes the component pick-up position 4c and the count value becomes zero before running out of components, a tape replacement command is issued to the tape feeder 1.例文帳に追加The same processing is performed when parts run out before the count value reaches zero. It should be noted that occurrence of component shortage is determined by the component mounting apparatus M side. That is, when the pick-up of components by the suction nozzle fails continuously, it is determined that there is no component, and the out-of-component determination is performed.

Also, when there is a tape replacement command from the component mounting apparatus M in (ST2), the tape discharge operation is started (ST6). That is, the carrier tape 20, which is being conveyed by the first carrier tape conveying section 15 at that time, is continuously conveyed and discharged from the discharge port 4b. Then, the presence or absence of the carrier tape 20 is monitored by the first tape detection section 13, and after it is confirmed that the carrier tape 20 is not present, it is further monitored whether or not a predetermined time has passed (ST8).

Here, the carrier tape 20 is reliably ejected from the tape transport path 4 by waiting for a predetermined time after the first tape detection unit 13 stops detecting the carrier tape 20 . Then, after confirming that the predetermined time has passed in (ST8), the tape discharge operation by the first carrier tape conveying section 15 is stopped, and loading of the next carrier tape 20 is started (ST9). That is, the next carrier tape 20 is inserted from the insertion port 4a, and the second carrier tape conveying section 16 continuously conveys the tape along the tape conveying path 4 to the downstream side.

Next, in this tape feeding, it is monitored whether or not the carrier tape 20 is detected (ST10). This tape detection is performed by detecting the leading edge of the next carrier tape 20 by the first tape detection section 13 . If the detection of the carrier tape 20 is confirmed in (ST10), a cueing process is performed (ST11). That is, the position of the carrier tape 20 is adjusted so that the leading feed hole 20c of the carrier tape 20 stops at the component pickup position 4c.

After that, the completion of component supply preparation is notified to the component mounting apparatus M (ST12). Upon receiving this notification, the component mounting apparatus M updates the data regarding the component, and issues a tape feed command to the tape feeder 1 at the timing instructed by the mounting program. The data to be updated here includes, in addition to the remaining number of parts of the carrier tape 20, identification information of parts used as production history information, lot information, manufacturer information, and the like.

Next, the processing flow in the splicing mode described above will be described with reference to FIG. First, the tape feeder 1 is in a standby state waiting for an operation command from the component mounting apparatus M (ST20), and in this state, the presence or absence of a command is monitored (ST21). If there is no command here, the process returns to (ST20) to continue waiting. In (ST21), when there is a tape feed command from the component mounting apparatus M, the first carrier tape transport section 15 is operated to transport the carrier tape 20 by one pitch (ST22).

Next, the presence or absence of the carrier tape 20 is determined from the detection result of the first tape detection section 13 (ST23). If the carrier tape 20 is not present, it is notified to the component mounting apparatus M (ST24), and then returns to (ST20) to wait for the next command. The component mounting apparatus M receiving this notification in (ST24) judges that the component has run out, and notifies the worker of this fact by using the notification means of the component mounting apparatus M. Issue an out-of-stock notification command. As a result, on the operation panel 2g of the tape feeder 1, the lack of parts is notified by the display on the display section 42 or the lighting of the lamp 43. FIG. In the splicing mode, if the carrier tape 20 is replenished normally, parts will not run out, but if splicing is not normal due to human error, parts may run out. have a nature.

If it is determined in (ST23) that the carrier tape 20 is present, the second tape detection section 14 determines whether or not the connecting portion is detected (ST25). If the connecting portion is not detected here, the process returns to (ST20) to continue waiting.

Upon receiving this notification, the component mounting apparatus M executes the following processing. First, the component mounting apparatus M starts counting down the tape feed amount of the carrier tape 20 by the first carrier tape transport section 15 . Here, the counter is set so that the count value becomes zero at the timing when the detected connecting portion passes the component extraction position 4c. Then, when the connecting portion passes the component pick-up position 4c and the count value becomes zero, it is determined that the carrier tape 20 has been switched, and the data regarding the component is updated. In addition, when there is a part shortage notification command in (ST21), the display unit 42 displays or lights the lamp 43 (ST27) to notify the operator of the parts shortage, and then (ST20 ) and wait.

Next, the processing flow in the short tape mode described above will be described with reference to FIG. First, the tape feeder 1 is in a standby state waiting for an operation command from the component mounting apparatus M (ST30), and in this state, the presence or absence of a command is monitored (ST31). If there is no command here, the process returns to (ST30) to continue waiting. In (ST31), when there is a tape feed command from the component mounting apparatus M, the first carrier tape transport section 15 is operated to transport the carrier tape 20 by one pitch (ST32), and thereafter (ST30). to continue waiting. In addition, when there is a part shortage notification command in (ST31), the display section 42 displays or lights the lamp 43 (ST33) to notify the operator of the parts shortage, and then (ST30 ) and wait.

The tape feeder 1 according to the present embodiment can selectively execute any of the first operation mode, the second operation mode, and the third operation mode. That is, in the case of the autoload mode (first operation mode) in which the preceding carrier tape 20 and the succeeding carrier tape 20 are sent to the component pick-up position 4c without being connected, the feeder control unit 12 is the carrier tape detecting means. The first carrier tape conveying unit 15 and the second carrier tape conveying unit 16 are controlled using the detection result of the one tape detecting unit 13 .

In the splicing mode (second operation mode) in which the preceding carrier tape 20 and the succeeding carrier tape 20 are connected and sent, the feeder control unit 12 controls the first carrier tape conveying unit 15 and also controls the first carrier tape transport unit 15. When the second tape detection section 14, which is part detection means, detects the connection part between the preceding carrier tape 20 and the subsequent carrier tape 20, it notifies the component mounting apparatus M to that effect.

In the above-described embodiment, an example in which the second tape detecting section 14 is provided as connecting section detection means is shown, but the connecting section may be detected by the first tape detecting section 13 . That is, in this case, the first tape detection unit 13, which is the carrier tape detection means, can detect the carrier tape 20 passing through the tape transport path 4 and the connecting portion between the preceding carrier tape 20 and the succeeding carrier tape 20. It has become. Then, when the first tape detecting section 13 detects the connecting portion between the preceding carrier tape 20 and the succeeding carrier tape 20, it notifies the component mounting apparatus M to that effect.

Next, a modification of the opening/closing cover 9A will be described with reference to FIGS. 18 to 20. FIG. Note that FIG. 20 shows the FF section in FIG. As shown in FIG. 18, the opening/closing cover 9A has a configuration in which fins 9k are arranged on the lower surface side of the second cover portion 9b in the opening/closing cover 9 shown in FIGS. The fin 9k is a cover tape guide, and has a shape that guides the cover tape 20a separated from the carrier tape 20 and sent out by a pair of rollers, that is, a drive roller 21 and a driven roller 22, in the discharge direction to the cover tape discharge path 24. is provided. By providing such fins 9k, the cover tape 20a separated from the carrier tape 20 and sent out can be smoothly discharged.

As shown in FIG. 19, two fins 9k are arranged side by side on the lower surface of the second cover portion 9b at a position corresponding to the position of the driven roller 22 in plan view. As shown in the FF cross section of FIG. 20, the two fins 9k extending downward from the lower surface of the second cover portion 9b adhere to and remain on the back surface of the cover tape 20a separated from the carrier tape 20. It is arranged at a position to avoid the mark 20e of the bonded portion. By arranging the fins 9k in this way, it is possible to prevent the traces 20e of the adhesive portion remaining on the peeled cover tape 20a from adhering to the fins 9k. Therefore, the cover tape 20a can be smoothly discharged to the cover tape discharge path 24 while being stably guided.

In the tape feeder 1 whose overall structure is shown in FIG. 1, the second tape detection section 14, which is a connecting section detection means, guides the carrier tape 20 from the insertion opening 4a to the discharge opening 4b in the main body section 2. An embodiment arranged in the tape transport path 4 is shown. The present embodiment is not limited to such examples, and for example, the configurations shown in FIGS. 22 and 23 may be employed.

In the tape feeder 1A shown in FIG. 22, as in the case of the tape feeder 1, the main body 2 is provided with the tape transport path 4 for guiding the carrier tape 20 from the insertion port 4a to the discharge port 4b. A configuration example is shown in which a second tape detection unit 14A having a function of detecting a connecting portion like the detection unit 14 is arranged on the moving path of the carrier tape 20 before the carrier tape 20 is carried into the tape transport path 4. ing. That is, in this configuration example, a holding member 2i extending upstream from the main body 2 is provided with a second tape detecting portion 14A disposed at a position separated from the insertion opening 4a in the moving path of the carrier tape 20. I am holding it.

Also, in the tape feeder 1B shown in FIG. 23, similar to the tape feeder 1, in the configuration provided with the main body 2 provided with the tape transport path 4 for guiding the carrier tape 20 from the insertion port 4a to the discharge port 4b, the second A configuration example is shown in which a second tape detection section 14B having a function of detecting a connecting portion like the tape detection section 14 is arranged in an insertion port 4a for inserting the carrier tape 20 into the tape transport path 4. FIG. That is, in this configuration example, the second tape detecting portion 14B is arranged at a position coinciding with the insertion opening 4a on the upstream end face of the main body portion 2. As shown in FIG.

As described above, the tape feeder 1 according to the present embodiment includes a carrier tape 20 in which a storage portion 20b storing parts P and feed holes 20c for transport are formed at regular intervals, and a cover tape 20a covering the top surface of the carrier tape 20. is released to open the storage portion 20b, and supplies the components P from the opened storage portion 20b to the component mounting apparatus M at the component extraction position 4c. A positioning sprocket as a first sprocket that conveys the carrier tape 20 to the downstream component pick-up position 4c by engaging with the feed hole 20c and rotating. 7, and a discharge sprocket 8 as a second sprocket that is disposed downstream of the component removal position 4c and rotates in engagement with the feed hole 20c to convey the carrier tape 20 from the component removal position 4c to the discharge port 4b. , a stripping portion that strips the cover tape 20a from the carrier tape 20 upstream of the component pick-up position 4c; The positioning sprocket 7, the ejection sprocket 8, the driving roller 21, and the driven roller 22 are arranged below the opening/closing cover 9 in the configuration provided with the opening/closing cover 9 having a cover portion that covers the upper side of the tape transport path 4. ing. With this configuration, the drive roller 21 and the driven roller 22, which have the function of peeling off the cover tape 20a, can be provided at positions close to the component pick-up position 4c, making it easy to deal with the short tape 20* with the cover tape 20a. , the short tape 20* can be easily attached.

Further, the tape feeder 1 shown in the present embodiment is a component supply device having the above-described configuration, and includes a body portion 2 provided with a tape transport path 4 for guiding the carrier tape 20 from the insertion port 4a to the discharge port 4b, A first carrier tape conveying unit 15 having a positioning sprocket 7 for conveying the carrier tape 20 to the component pick-up position 4c by engaging with the feed hole 20c and rotating, and a carrier tape 20 upstream of the component pick-up position 4c. An opening/closing cover having a peeling portion for peeling the cover tape 20a, a driving roller 21 and a driven roller 22, which are a pair of rollers for discharging the cover tape 20a peeled by the peeling portion, and a cover portion covering the top of the tape transport path 4. 9 , the driving roller 21 and the driven roller 22 are arranged below the opening/closing cover 9 , and the opening/closing cover 9 is allowed to access at least one of the driving roller 21 and the driven roller 22 . forming With this configuration, when the cover tape 20a separated from the carrier tape 20 is guided to the drive roller 21 and the driven roller 22 and set, even if the cover tape 20a is greatly slackened, the cover tape 20a can be removed from the second opening 9d. It is possible to easily access the driving roller 21 and the driven roller 22 and correct looseness. Therefore, deformation due to loosening of the cover tape peeled from the carrier tape can be prevented, and normal cover tape peeling can be performed.

In this specification, the tape feeder 1 capable of selectively executing any one of the first operation mode, the second operation mode and the third operation mode has been described as an example. , i.e., an autoload feeder having an automatic peeling function for automatically peeling off the cover tape 20a, and a normal tape feeder having no automatic peeling function.

The component supply device of the present invention has the effect of preventing troubles due to slackness of the cover tape peeled off from the carrier tape and enabling normal peeling of the cover tape. It is useful in the technical field of supplying components to mounting equipment.

Reference Signs List 1, 1A, 1B tape feeder 2 main body 3 tape conveying section 4 tape conveying path 4a insertion port 4b discharge port 4c parts extraction position 4d flat section 4e climbing section 6 conveying sprocket 7 positioning sprocket 8 discharge sprocket 9, 9A open/close cover 15 No. 1 Carrier Tape Conveying Section 16 Second Carrier Tape Conveying Section 20 Carrier Tape 20* Short Tape 20a Cover Tape 20b Storage Section 20e Mark of Adhering Section 21 Driving Roller 22 Driven Roller 23 Tape Guide 23a Peeling Section

Claims (5)

The cover tape covering the upper surface of the carrier tape is peeled off from the carrier tape in which the storage section containing the parts and the feeding holes for transportation are formed at regular intervals to open the storage section, and the storage section opened at the component pick-up position is removed. A component supply device for supplying components to a component mounting device,
a main body provided with a tape transport path for guiding the carrier tape from an insertion port to an ejection port;
a first carrier tape conveying unit having a sprocket that conveys the carrier tape to a component pickup position by engaging with the feed hole and rotating;
a cover tape peeling unit for peeling the cover tape from the carrier tape upstream of the component extraction position;
a pair of rollers for discharging the cover tape peeled by the cover tape peeling unit;
a cover that covers the upper side of the tape transport path and engages the carrier tape with the sprocket ;
A component feeding device, wherein the pair of rollers are arranged below the cover , and an opening is formed in the cover to allow access to at least one of the pair of rollers. one of the pair of rollers is a drive roller driven by a drive source;
The other of the pair of rollers is a driven roller rotated by the drive roller,
2. The component supply device according to claim 1, wherein said cover has said driven roller. 2. The component feeding apparatus according to claim 1, wherein a cover tape guide is arranged on said cover for guiding the cover tape sent out by said pair of rollers in a discharge direction. The cover tape is adhered to the carrier tape via an adhesive portion formed at the adhesion interface with the carrier tape,
2. The component supply device according to claim 1, wherein said cover tape guide is arranged at a position to avoid a trace of said adhesive portion of the peeled cover tape. 2. The component supply device according to claim 1, wherein said cover is an opening/closing cover that covers said tape conveying path in an openable/closable state.

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