JP2023162719A - Carrier tape transport device and tape feeder - Google Patents

Abstract

To provide a carrier tape transport device that reduces problems caused by foreign matter, and a tape feeder equipped with the same.SOLUTION: A carrier tape transport device stores components and transports a carrier tape provided with feed holes at a predetermined pitch. The carrier tape transport device includes a frame having a transport surface that supports and guides the carrier tape being transported from below, and a sprocket that has multiple pins that protrude radially according to the pitch of the feed holes, and transports the carrier tape by rotating the pin while protruding upward from an opening formed in the transport surface to engage the pin with the feed hole. The length of the portion of the pin that is hidden under the transport surface is longer than the length of the portion that protrudes from the transport surface.SELECTED DRAWING: Figure 7

Description

The present disclosure relates to a carrier tape transport device that transports a carrier tape containing components, and a tape feeder equipped with the same.

2. Description of the Related Art Conventionally, a tape feeder is known as a component mounting device in which a mounting head takes out components stored in a carrier tape and mounts them on a board, and a tape feeder supplies the components to a component supply position by the mounting head. This tape feeder has a built-in carrier tape conveying device that conveys the carrier tape. In the component mounting device, a plurality of tape feeders are prepared for each type of component to be mounted on the board, and these tape feeders are arranged adjacent to each other for use.

Then, when the type of substrate to be produced is changed, unnecessary tape feeders are replaced. The parts handled by the component mounting device vary in size, and include micro parts of 0.4 mm x 0.2 mm or less. An opening is formed in the conveying surface for conveying the carrier tape, and a sprocket pin of the carrier tape conveying device protrudes from this opening. For this reason, parts scattered from the carrier tape during replacement work may fall into the tape feeder from the opening, and a structure that takes such trouble into account is known (Patent Document 1).

JP2014-67848A

In the structure of Patent Document 1, since the size of the opening is large, components tend to fall into the tape feeder. Therefore, it is conceivable to reduce the size of the opening to a size that does not interfere with the rotation of the sprocket pin. However, if the size of the opening is made small, a problem may occur in which foreign objects caught between the pins of the sprocket become caught between the pins and the edge of the opening, stopping the rotation of the sprocket.

Therefore, an object of the present disclosure is to provide a carrier tape conveying device and a tape feeder including the same, which reduce problems caused by foreign objects, in order to solve the above-mentioned conventional problems.

A carrier tape transport device according to the present disclosure transports a carrier tape that accommodates components and is provided with perforations at a predetermined pitch. The carrier tape transport device has a frame having a transport surface that supports and guides the carrier tape to be transported from below, and a plurality of pins that protrude radially in accordance with the pitch of the sprocket holes, and the pins are formed on the transport surface. and a sprocket that rotates while protruding upward from the opening to engage the pin in the feed hole and transport the carrier tape. The length of the portion of the pin that is hidden under the conveying surface is longer than the length of the portion that protrudes from the conveying surface.

The tape feeder of the present disclosure is a tape feeder that conveys a carrier tape provided with feed holes at a predetermined pitch and supplies components stored in the carrier tape to a component supply position. The tape feeder includes the carrier tape transport device described above, and the carrier tape transport device transports the carrier tape to supply components to the component supply position.

According to the present disclosure, it is possible to provide a component transport device that reduces problems caused by foreign objects and a tape feeder equipped with the same.

Schematic diagram of a component mounting device according to an embodiment of the present disclosure Schematic diagram of a tape feeder according to an embodiment of the present disclosure Partial plan view of tape feeder parts supply position and surrounding area An explanatory diagram showing a schematic cross section taken in the direction of arrow V in FIG. 2 Schematic perspective view of carrier tape Partially enlarged perspective view of carrier tape conveyance device YZ plan view of carrier tape transport device Vertical cross-sectional view in the XZ plane of the carrier tape transport device Partial side view of sprocket

According to the first aspect of the present disclosure, the carrier tape transport device transports a carrier tape that stores components and is provided with feed holes at a predetermined pitch. The carrier tape transport device has a frame having a transport surface that supports and guides the carrier tape to be transported from below, and a plurality of pins that protrude radially in accordance with the pitch of the sprocket holes, and the pins are formed on the transport surface. and a sprocket that rotates while protruding upward from the opening to engage the pin in the feed hole and transport the carrier tape. The length of the portion of the pin that is hidden under the conveying surface is longer than the length of the portion that protrudes from the conveying surface.

According to the carrier tape conveying device of the first aspect, even if a foreign object enters the interior through the opening and remains between the pins of the sprocket, the length of the part of the pin that protrudes from the conveying surface is longer than the length of the foreign object hidden below the conveying surface. Because the length of the conveyor part is long, foreign objects tend to fall to the bottom of the conveyor surface. Thereby, it is possible to reduce the problem that the carrier tape cannot be fed due to a foreign object being caught between the pin and the edge of the opening.

According to a second aspect of the present disclosure, there is provided the component transport device according to the first aspect, in which the total length of the pin is longer than the distance between the pins, which is the distance between the root portions of adjacent pins. As a result, it is possible to further reduce the problem that foreign objects tend to fall below the conveying surface and become caught between the pins and the edge of the opening, making it impossible to feed the carrier tape.

According to the third aspect of the present disclosure, the foreign object receiver is provided below the sprocket to receive foreign objects that enter from the opening and remain on the surface sandwiched between the pins of the sprocket and fall as the sprocket rotates. Provided is a component transport device according to the first aspect or the second aspect, having a part. The foreign matter receiving portion can prevent foreign matter from moving to an unexpected location inside the carrier tape conveying device.

According to a fourth aspect of the present disclosure, there is provided the component transport device according to any one of the first to third aspects, which includes a foreign matter guide section that guides foreign matter to the discharge section. Thereby, foreign matter that has entered the inside of the carrier tape transport device can be reliably discharged.

According to the fifth aspect of the present disclosure, the component transport device according to the fourth aspect, wherein the foreign matter guide section is provided with a downwardly concave portion, and a pocket is formed in the foreign matter guide section to collect fallen foreign matter. I will provide a. Thereby, foreign matter that has entered the carrier tape transport device can be prevented from freely moving inside the device.

According to a sixth aspect of the present disclosure, there is provided the component conveying device according to the fifth aspect, wherein the discharge section is arranged in a portion where the pocket is located. Thereby, foreign matter that has entered the carrier tape transport device can be reliably discharged.

According to a seventh aspect of the present disclosure, there is provided a tape feeder that conveys a carrier tape provided with feed holes at a predetermined pitch and supplies components stored in the carrier tape to a component supply position, the tape feeder according to the first aspect A tape feeder is provided, which includes the carrier tape transport device according to any one of the sixth aspects, and transports a carrier tape by the carrier tape transport device to supply components to a component supply position. This makes it possible to realize a tape feeder that reduces problems caused by foreign objects.

Hereinafter, exemplary embodiments of a component mounting apparatus according to the present disclosure will be described with reference to the accompanying drawings. The present disclosure is not limited to the specific configurations of the embodiments below, and includes configurations based on similar technical ideas.

(Embodiment)
The configuration of a component mounting apparatus 1 according to an embodiment of the present disclosure will be described with reference to FIG. 1. FIG. 1 is a schematic diagram of a component mounting device 1. As shown in FIG. In FIG. 1, two axial directions perpendicular to each other in a horizontal plane are shown: the X direction of the substrate transport direction (direction perpendicular to the paper surface in FIG. 1), and the Y direction (horizontal direction in FIG. 1) perpendicular to the substrate transport direction. Further, the Z direction (vertical direction and vertical direction in FIG. 1) is shown as a height direction perpendicular to the horizontal plane. Furthermore, the radial direction refers to the radial direction of the rotating shaft, and the thrust direction refers to the axial direction of the rotating shaft.

The component mounting apparatus 1 manufactures a mounting board in which components are mounted on a board. A substrate transport mechanism 2 provided on the upper surface of the base 1a transports, positions, and holds the substrate 3 in the X direction. A mounting head 4 is installed above the substrate transport mechanism 2 and is moved in the horizontal direction (X direction, Y direction) by a head moving mechanism (not shown). A plurality of tape feeders 6 are attached to the upper part of a cart 5 connected to the base 1a on the side of the substrate transport mechanism 2 in a line in the X direction. The tape feeder 6 is a component supply device that supplies components to the component mounting device 1 .

On the front side of the cart 5 and below the tape feeder 6, a reel holding part 9 is installed to rotatably support a reel 8 wound with a carrier tape 7 for storing components to be supplied to the component mounting device 1. has been done. The tape feeder 6 transports the carrier tape 7 stored in the reel 8 in the tape feeding direction and supplies the component to the component supply position P1 by the mounting head 4.

The component mounting apparatus 1 includes a substrate transport mechanism 2, a mounting head 4, and a mounting control section 10 that controls a head moving mechanism. The mounting control section 10 sends a component supply command to the unit control section 17 of the tape feeder 6, controls the mounting head 4 and the head movement mechanism, and the mounting head 4 supplies the tape feeder 6 to the component supply position P1. A component mounting operation is performed in which a component is taken out and transferred and mounted on a mounting point on the board 3 held by the board transport mechanism 2. In this way, the tape feeder 6 is a tape feeder that supplies the components stored on the carrier tape 7 to the component mounting device 1. The components housed in the carrier tape 7 are, for example, chip-type electronic components. A main body cover 11 that can be opened and closed is installed above the base 1a and the trolley 5 to prevent the operator from touching the movable mechanism such as the mounting head 4 during work.

The mounting control section 10 includes a storage section. The mounting control unit 10 is configured of, for example, a processor or a circuit such as an FPGA, and a memory or an SSD.

In FIG. 1, a collection box 12 is installed at the bottom of the truck 5 to collect empty carrier tapes 7 from which components are taken out by the mounting head 4 and discharged from the rear of the tape feeder 6. A discharge chute 13 is installed on the rear side of the truck 5 to guide the empty carrier tape 7 discharged from the tape feeder 6 to a collection box 12. The discharge chute 13 is provided with a cutting section 14 that cuts the empty carrier tape 7 to a predetermined length. The empty carrier tape 7 discharged from the tape feeder 6 is cut by the cutting section 14 and collected into the collection box 12.

《Tape feeder》
Next, the configuration of the tape feeder 6 will be explained with reference to FIGS. 2 to 4. FIG. 2 is a schematic diagram of the tape feeder 6 of the embodiment. FIG. 3 is a partial plan view of the vicinity of the component supply position P1 of the tape feeder 6. FIG. 4 is an explanatory diagram showing a schematic cross section taken along arrow V in FIG.

The tape feeder 6 includes a tape conveyance path 20, an exposed portion 80, and a carrier tape conveyance device 21 inside the main body portion 60. A discharge port 20b from which the tape 7 is discharged is provided. The main body 60 of the tape feeder 6 is composed of a plurality of members such as a base 61, a main frame 62, and a sub-frame 63. The base 61 is a part fixed to the truck 5, and a main frame 62 and a sub-frame 63 are fixed in parallel thereon. The main frame 62 and the sub-frame 63 are plate-shaped members with a vertically elongated cross section when viewed from the Y direction (see FIG. 4), and the tape transport path 20 is formed in the space sandwiched between the main frame 62 and the sub-frame 63. . The main frame 62 is a frame that constitutes the carrier tape conveying device 21 that conveys the carrier tape 7 along the tape conveying path 20, and includes a plurality of first to third sprockets 26, 28, and 30 and a frame for driving them. A motor 25 is assembled.

The tape transport path 20 guides the carrier tape 7 inserted into the tape transport path 20 from the insertion port 20a to the component supply position P1, and further guides it to the discharge port 20b. The exposed portion 80 is formed by peeling off the top tape 7b of the carrier tape 7 (see FIG. 5) from the carrier tape 7 to expose the component 16 packed in the carrier tape 7. Although the exposed portion 80 of this embodiment employs a method in which the top tape 7b is peeled off from the carrier tape 7, the component 16 may be exposed by cutting the top tape 7b with a cutter or the like.

The insertion port 20a opens on the upstream side (left side in FIG. 2) of the tape transport path 20 in the tape transport direction. The discharge port 20b opens on the downstream side (the right side in FIG. 2) in the tape feeding direction. The tape transport path 20 communicates from the insertion port 20a to the discharge port 20b. The tape conveyance path 20 is an open section where the section from the second sprocket 28 to the third sprocket 30 is open upward. A tape cover 90 is attached to the main body part 60 to cover the upper part of this open section. As shown in FIG. 3, the tape cover 90 is arranged so as to straddle the upper part of the main frame 62 and the upper part of the sub-frame 63, and a component ejection port 90a is formed at a position corresponding to the component supply position P1. The main frame 62 has a cover mounting part 62k on the upper outer surface thereof, into which a tape cover 90 is mounted. The cover mounting portion 62k is, for example, in the shape of a recess or a step.

Further, within this open section, an opening 622 for exposing the pin 28a of the second sprocket 28 is provided in the main frame 62 (see FIG. 6). The pin 28a exposed from the opening 622 engages with the feed hole 7d of the carrier tape 7, and the carrier tape 7 is positioned as the second sprocket 28 rotates. The carrier tape 7 travels along the lower conveyance surface 62g of the tape cover 90 by the second sprocket 28, and the component 16 accommodated in the pocket 7c of the carrier tape 7 is conveyed to the component supply position P1.

The mounting head 4 takes out the component 16 stored in the carrier tape 7 from the component take-out port 90a. Escape holes 90b and 90c are formed in the tape cover 90 to avoid interference with the second sprocket 28 and the third sprocket 30.

《Carrier tape》
Next, the carrier tape 7 will be explained in detail with reference to FIG. FIG. 5 is a schematic perspective view of the carrier tape 7.

The carrier tape 7 has a base tape 7a and a top tape 7b. The base tape 7a has storage portions 7e formed in a row and at equal intervals in the longitudinal direction by embossing. Pockets 7c that open upward are formed inside this storage portion 7e, and components 16 are stored in each pocket 7c. The top tape 7b is attached to the upper surface of the base tape 7a, and the component 16 is enclosed in the pocket 7c. A plurality of feed holes 7d are provided in a row at equal pitches Pt1 at positions parallel to the rows of pockets 7c of the base tape 7a. The depth Hb of the pocket 7c that stores the component 16 is determined according to the size of the component to be stored. Further, the width Wa of the carrier tape 7 is also selected to be an appropriate size depending on the dimensions of the component.

《Carrier tape conveyance device》
Next, the carrier tape transport device 21 will be explained with reference to FIGS. 2 and 7. FIG. 7 is a YZ plan view of the carrier tape transport device 21. As shown in FIG.

The carrier tape transport device 21 transports the carrier tape 7 to the component supply position P1 on the downstream side of the tape transport path 20. The carrier tape transport device 21 includes a main frame 62, at least one sprocket, a motor 25, and a plurality of drive gears that transmit the power of the motor 25 to the sprocket to rotate it. The carrier tape transport device 21 of this embodiment includes three sprockets: a first sprocket 26, a second sprocket 28, and a third sprocket 30.

The first sprocket 26 is attached to the main frame 62 so as to be rotatable about a horizontal axis of rotation parallel to the X direction. The second sprocket 28 is attached to the main frame 62 so as to be rotatable about a horizontal rotation axis J (see FIG. 4) parallel to the X direction. The third sprocket 30 is attached to the main frame 62 so as to be rotatable about a horizontal axis of rotation parallel to the X direction.

The carrier tape conveying device 21 further includes a plurality of drive gears that transmit the driving force of the motor 25, and the output of the motor 25 is transmitted to the first sprocket 26, the second sprocket 28, and the second sprocket 28 through these gears. It is transmitted to three sprockets 30, respectively.

Next, with reference to FIG. 8, the main frame 62 of the carrier tape transport device 21 will be described. FIG. 8 is a longitudinal sectional view of the carrier tape transport device 21 in the XZ plane.

As shown in FIG. 8, the main frame 62 has a first surface 62L and a second surface 62R as side surfaces that extend vertically and horizontally (parallel to the YZ plane) along the transport direction of the carrier tape 7 by the tape transport path 20. have The main frame 62 is a plate-like member sandwiched between a first surface 62L and a second surface 62R and having a small thickness T. Therefore, the cross section (XZ cross section) of the main frame 62 perpendicular to the transport direction of the carrier tape 7 is vertically long.

The main frame 62 has a flat conveyance surface 62g formed on its upper portion for guiding the carrier tape 7 along the tape conveyance path 20. A plurality of openings from which the pins of each sprocket protrude are formed in the conveyance surface 62g. For example, in the opening 622, the pin 28a of the second sprocket 28 protrudes beyond the conveying surface 62g. Further, in the downstream opening 623, the pin 30a of the third sprocket 30 protrudes beyond the conveyance surface 62g.

These pins 28a, 30a are inserted into the feed holes 7d of the carrier tape 7 located on the conveyance surface 62g. Therefore, when the first to third sprockets 26, 28, and 30 rotate, the carrier tape 7 is sent out to the pins of each sprocket and moves along the conveying surface 62g. A foreign matter receiving portion 59 is arranged below the first to third sprockets 26, 28, and 30 to guide foreign matter that has entered between the pins of each sprocket to the foreign matter discharge hole 62h and the foreign matter discharge port 62m.

Next, with reference to FIGS. 7 and 8, recovery of the foreign matter 93 that has fallen between the pins 28a will be described. The foreign matter 93 is, for example, dust, parts 16 scattered from the carrier tape 7 during the replacement work of the tape feeder 6, and the like.

The foreign matter receiving portion 59 receives foreign matter 93 that enters through each opening and remains on the surface of the sprocket after being caught between the pins of each sprocket and falls as the sprocket rotates. For example, inside the main frame 62, the tip of the pin 28a of the second sprocket 28 is surrounded by a foreign object receiving portion 59. The foreign object receiving part 59 is arranged between the main frame 62 and the inner cover 38.

The foreign matter receiving section 59 has a first foreign matter guide section 59b and a second foreign matter guide section 59c that guide the foreign matter 93 to a foreign matter discharge hole 62h and a foreign matter discharge port 62m, respectively. The first foreign matter guide portion 59b guides, for example, a foreign matter 93 that has entered the main frame 62 with the rotation of the second sprocket 28 to a pocket 59a arranged below the second sprocket 28. The first foreign matter guide portion 59b is a part of the upper surface of the foreign matter receiving portion 59, and is formed along a circle connecting the tips of the respective pins 28a of the second sprocket 28.

The pocket 59a is a concave portion recessed downward from the first foreign matter guide portion 59b, and is connected to a foreign matter discharge hole 62h formed in the main frame 62 and communicating with the outside. The foreign matter 93 that has fallen between the pins 28a rotates together with the second sprocket 28, falls onto the first foreign matter guide portion 59b, and is collected in the pocket 59a. The foreign matter discharge hole 62h is arranged at a portion where the pocket 59a is located, for example, at the bottom of the pocket 59a. The operator can collect the foreign matter 93 collected in the pocket 59a through the foreign matter discharge hole 62h.

A second foreign matter guide portion 59c is formed below the third sprocket 30 by the foreign matter receiving portion 59. The second foreign matter guide portion 59c guides foreign matter 93 that has fallen into the main frame 62 as the third sprocket 30 rotates to the foreign matter discharge port 62m. The second foreign matter guide portion 59c is a part of the upper surface of the foreign matter receiving portion 59, and is inclined downward. The foreign matter 93 that has fallen from the third sprocket 30 onto the second foreign matter guide portion 59c moves along the second foreign matter guide portion 59c due to its own weight, and is discharged to the outside of the main frame 62 from the foreign matter discharge port 62m.

Next, referring to FIG. 9, the length of the sprocket pin will be explained. FIG. 9 is a partial side view of the sprocket. Here, the length of the pin 28a of the second sprocket 28 will be explained, but the pin of the first sprocket 26 and the pin 30a of the third sprocket 30 may have a similar configuration.

The upper part of the pin 28a of the second sprocket 28 protrudes above the conveyance surface 62g of the carrier tape 7. The length Lp1 of the portion of the pin 28a that protrudes upward from the conveyance surface 62g of the carrier tape 7 is longer than the length Lp2 of the portion that does not protrude from the conveyance surface 62g. In other words, the length Lp2 from the pin bottom 28d of the second sprocket 28 to the conveying surface 62g of the carrier tape 7 is longer than the length Lp1 of the pin 28a of the second sprocket 28 protruding from the conveying surface 62g of the carrier tape 7. It's longer. As a result, even if the foreign object 93 falls between the two pins 28a, since the length Lp2 of the pin 28a is long, the foreign object 93 will enter below the conveyance surface 62g and the edge of the opening 622 and the pin 28a It is possible to reduce the possibility of being caught in between.

Further, the total length Lp3 of the pin 28a of the second sprocket 28 is larger than the maximum dimension of the component 16. In other words, Lp3, which is also the difference between the radius Rt to the pin tip 28e of the second sprocket 28 and the radius Rb of the pin bottom 28d of the second sprocket 28, is larger than the maximum dimension of the component 16. Thereby, even if the component 16 falls as a foreign object 93 between the two pins 28a, it is possible to further reduce the possibility of the component 16 being caught between the edge of the opening 622 and the pin 28a.

Further, the total length Lp3 of the pin 28a of the second sprocket 28 is longer than the inter-pin distance Dp, which is the interval between the root portions of adjacent pins 28a. As a result, even if the foreign object 93 enters the opening 622 and remains between the pins 28a of the second sprocket 28, the foreign object 93 gets caught between the pin 28a and the edge of the opening 622, causing problems such as the carrier tape 7 not being able to be fed. can be better avoided. Further, the ability to capture the foreign matter 93 between the pins 28a of the second sprocket 28 is increased, and the possibility that the foreign matter 93 goes missing inside the carrier tape conveyance device 21 can be reduced.

The carrier tape transport device 21 of this embodiment accommodates the components 16 and transports the carrier tape 7 provided with the feed holes 7d at a predetermined pitch Pt1. The carrier tape transport device 21 includes a main frame 62 and a second sprocket 28. The main frame 62 has a conveying surface 62g that supports and guides the carrier tape 7 being conveyed from below. The second sprocket 28 has a plurality of pins 28a that protrude radially in accordance with the pitch Pt1 of the feed holes 7d. 28a is engaged with the feed hole 7d to transport the carrier tape 7. The length Lp2 of the portion of the pin 28a that is hidden under the conveyance surface 62g is longer than the length LP1 of the portion of the pin 28a that protrudes from the conveyance surface 62g.

Even if a foreign object 93 enters the interior through the opening 622 and remains between the pins 28a of the second sprocket 28, the length Lp2 of the pin 28a is longer than the length Lp1, so the foreign object 93 does not reach the conveyance surface. Easy to fall to the bottom. This makes it possible to avoid a problem in which the carrier tape 7 cannot be fed due to the foreign object 93 being caught between the pin 28a and the edge of the opening 622.

Furthermore, in the carrier tape conveying device 21 of the present embodiment, the total length Lp3 of the pin 28a is longer than the inter-pin distance Dp, which is the interval between the root portions of adjacent pins 28a. Thereby, it is possible to further reduce the possibility that the foreign object 93 is caught between the pin 28a and the edge of the opening 622. Furthermore, the ability to capture the foreign matter 93 between the pins 28a of the second sprocket 28 is increased, and the possibility that the foreign matter 93 goes missing inside the carrier tape conveying device 21 is reduced.

Further, in the carrier tape conveying device 21 of the present embodiment, the foreign matter 93 that entered the lower part of the second sprocket 28 from the opening 622 and remained on the surface sandwiched between the pins 28a of the second sprocket 28 is removed from the second sprocket 28. It has a foreign matter receiving part 59 that receives foreign matter falling as the body 28 rotates.

In the structure of Patent Document 1, foreign objects such as parts that have fallen into the tape feeder may move freely in the gaps inside the tape feeder, and the missing foreign objects may cause a malfunction. In the carrier tape transport device 21 of this embodiment, the foreign object receiving portion 59 can prevent the foreign object 93 from moving to an unexpected location inside the carrier tape transport device 21.

Further, the carrier tape conveying device 21 of the present embodiment includes first and second foreign matter guide portions 59b and 59c in the foreign matter receiving portion 59, which guide the foreign matter 93 to the foreign matter discharge hole 62h and the foreign matter discharge port 62m. In Patent Document 1, it is troublesome to take out the foreign matter that has entered the inside of the tape feeder to the outside of the tape feeder, but the first and second foreign matter guide parts 59b and 59c prevent the foreign matter from entering the inside of the carrier tape conveying device 21. The foreign matter 93 can be reliably and easily discharged.

In addition, in the carrier tape conveying device 21 of the present embodiment, a downwardly concave portion is provided in the first foreign material guide portion 59b, and a pocket 59a is formed in the first foreign material guide portion 59b to collect fallen foreign materials 93. ing. Thereby, it is possible to further suppress foreign matter 93 that has entered the carrier tape transport device 21 from freely moving inside the device.

Furthermore, in the carrier tape conveying device 21 of this embodiment, the foreign matter discharge hole 62h is arranged in a portion where the pocket 59a is located. Thereby, the foreign matter 93 that has entered the inside of the carrier tape transport device 21 can be reliably discharged.

Further, the tape feeder 6 of this embodiment conveys the carrier tape 7 provided with the feed holes 7d at a predetermined pitch Pt1, and supplies the components 16 stored in the carrier tape 7 to the component supply position P1. The tape feeder 6 includes the carrier tape transport device 21 described above, and the carrier tape transport device 21 transports the carrier tape 7 to supply the components 16 to the component supply position P1.

By providing the tape feeder 6 with the carrier tape transport device 21, problems caused by foreign matter can be similarly reduced.

Although this disclosure has been fully described with reference to preferred embodiments and with reference to the accompanying drawings, various changes and modifications will become apparent to those skilled in the art. It is to be understood that such variations and modifications are included insofar as they do not depart from the scope of the disclosure as defined by the appended claims. Furthermore, changes in the combination and order of elements in each embodiment can be realized without departing from the scope and spirit of the present disclosure.

In the above embodiment, the second sprocket 28 has a structure in which the length Lp2 of the portion of the pin 28a that is hidden under the conveyance surface 62g is longer than the length Lp1 of the portion of the pin 28a that protrudes from the conveyance surface 62g. Not limited. The first sprocket 26 and the third sprocket 30 can also have the same configuration as the second sprocket 28.

Note that by appropriately combining any of the various embodiments and modifications described above, the effects of each can be achieved.

The component transport device according to the present disclosure is applicable to a component transport device that transports components toward a component supply position and a tape feeder equipped with the same.

1 Component mounting device 1a Base
2 Substrate transport mechanism 3 Substrate 4 Mounting head 5 Cart 6 Tape feeder 7 Carrier tape 7a Base tape 7b Top tape 7c Pocket 7d Spout hole 7e Storage section 8 Reel 9 Reel holding section 10 Mounting control section 11 Main body cover 12 Collection box 13 Ejection chute 14 Cutting section 15 Reader device 16 Parts 17 Unit control section 20 Tape transport path 20a Insertion port 20b Discharge port 21 Carrier tape transport device 25 Motor 26 First sprocket 28 Second sprocket 28a Pin 28d Pin bottom 28e Pin tip 30 Third sprocket 30a Pin 38 Inner cover 59 Foreign matter receiving section 59a Pocket 59b First foreign matter guide section 59c Second foreign matter guide section 60 Main body section 61 Base 62 Main frame 62g Conveying surface 62h Foreign matter discharge hole 62k Cover attachment section 62m Foreign matter discharge port 62L First surface 62R 2nd surface 63 Sub-frame 80 Exposed part 90 Tape cover 90a Parts removal port 90b, 90c Escape hole 93 Foreign object 622, 623 Opening Hb Depth J Rotation axis P1 Parts supply position Pt1 Pitch

Claims (7)

A carrier tape transport device that stores parts and transports a carrier tape provided with perforations at a predetermined pitch,
a frame having a conveyance surface that supports and guides the carrier tape being conveyed from below;
It has a plurality of pins that protrude radially in accordance with the pitch of the feed holes, and the pins are engaged with the feed holes by rotating while protruding the pins upward from the openings formed in the conveying surface. a sprocket for conveying the carrier tape;
The length of the portion of the pin that is hidden under the conveyance surface is longer than the length of the portion that protrudes from the conveyance surface.
Carrier tape conveyance device. The total length of the pin is longer than the distance between the pins, which is the distance between the root portions of the adjacent pins.
The carrier tape transport device according to claim 1. A foreign matter receiving part is provided below the sprocket to receive foreign matter that enters through the opening and remains on the surface sandwiched between the pins of the sprocket and falls as the sprocket rotates.
The carrier tape transport device according to claim 1. The foreign matter receiving section has a foreign matter guide section that guides the foreign matter to the discharge section.
The carrier tape transport device according to claim 3. The foreign matter guide portion is provided with a downwardly concave portion, and a pocket is formed in the foreign matter guide portion to collect fallen foreign matter.
The carrier tape transport device according to claim 4. The ejection part is arranged in a part where the pocket is located.
The carrier tape transport device according to claim 5. A tape feeder that conveys a carrier tape provided with feed holes at a predetermined pitch and supplies components stored in the carrier tape to a component supply position,
A carrier tape conveying device according to any one of claims 1 to 6,
transporting the carrier tape by the carrier tape transporting device to supply the component to the component supply position;
tape feeder.

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