JP7319226B2 - Component supply device and component mounting device - Google Patents

Description

The present invention relates to a component supply device mounted on a component mounting device, and a component mounting device equipped with this component supply device.

2. Description of the Related Art A component mounting apparatus for mounting components on a substrate such as a printed wiring board is equipped with a component supply device called a tape feeder for supplying components for mounting. Patent Document 1 discloses an example of a conventional tape feeder.

This tape feeder supplies components to a predetermined component pick-up position by feeding out a ribbon-shaped (strip-shaped) component-supplying tape containing components in its longitudinal direction. The tape is composed of a carrier tape in which component storage portions are formed at regular intervals, and a cover tape that is attached to the carrier tape and closes the storage portions.

The tape feeder is equipped with a tape take-up mechanism. The cover tape is folded back before the component pick-up position and picked up by this tape take-up mechanism. As a result, the cover tape is peeled off from the carrier tape, and the storage section is opened at the component pick-up position. In other words, it is possible to take out the parts stored in the storage section.

A tape storage section (space) is provided adjacently behind the tape take-up mechanism in the tape feeder, and the cover tape is stored in this tape storage section while being taken up by the tape take-up mechanism.

JP 2014-13864 A

The tape take-up mechanism of a conventional tape feeder includes a pair of rollers, each roller being a gear. The cover tape is sandwiched between these rollers and is taken up by rotating the rollers.

However, since the cover tape is usually formed from a film-like sheet and has almost no rigidity, it is difficult to push in the portion that has entered the accommodating portion first with the portion that is fed later. As a result, the cover tape tends to stay in the vicinity of the tape take-up mechanism in the tape accommodating portion, and it is difficult to effectively use the entire tape accommodating portion to recover the cover tape.

The present invention has been made in view of the circumstances as described above, and provides a technology capable of more efficiently accommodating a cover tape taken from a carrier tape in a tape accommodating section in a component supply device (tape feeder). intended to provide

A component supply device according to one aspect of the present invention includes a tape delivery unit for delivering a component supply tape, which has a carrier tape in which components are stored at regular intervals and a cover tape attached to the carrier tape, and the cover tape. a tape take-up portion for separating the cover tape from the carrier tape by taking the cover tape; a first gear member and a second gear member that sandwich the tape from both sides in the thickness direction thereof, are meshed with each other, and are rotationally driven to draw the cover tape toward the tape accommodating portion; The linear distance from the center of rotation to the tip of the tooth varies along the circumferential direction.

In this parts supply device, the cover tape is taken up by the rotation of the first and second gear members. At this time, since the linear distance from the center of rotation of the first gear member to the tip of the tooth differs along the circumferential direction, the size and position of the contact area between the first gear member and the second gear member in the meshing portion changes with the rotation of the first gear member. Due to this change, the momentum of the cover tape fed into the tape accommodating portion via the first gear member and the second gear member changes during one rotation of the first gear member. In other words, the cover tape fed into the tape accommodating portion may be pressed relatively strongly or weakly by the first gear member and the second gear member. This change in momentum of the cover tape causes a kind of peristaltic movement (or inchworm movement) in the cover tape, making it possible to move the cover tape further to the inner side of the tape housing portion. Therefore, according to this component supply device, it is possible to store the cover tape in the tape storage portion more efficiently, that is, to collect the cover tape using the entire tape storage portion without waste.

In this parts supply device, the tape take-up section includes: a support section that supports one of the first and second gear members so as to be displaceable with respect to the other gear member; a biasing member that biases the member to mesh with the gear member on the other side.

According to this configuration, the first and second gear members are stably meshed with each other during the rotation of the first and second gear members. Therefore, it is possible to stably change the momentum of the cover tape fed into the tape accommodating portion through the first and second gear members.

In the above configuration, it is preferable that the maximum diameter of the first gear member is larger than the maximum diameter of the second gear member.

According to this configuration, it is possible to prevent both the first and second gear members from increasing in size, that is, to prevent the entire tape take-up portion from increasing in size. Position can be more variable. As the size and position of the contact area change, the momentum of the cover tape toward the cover receiving portion during one rotation of the first gear member also changes. Thereby, the peristaltic movement of the cover tape can be increased. As a result, it becomes possible to store the cover tape in the tape storage portion more efficiently while suppressing an increase in the size of the component supply device.

In the above configuration, it is preferable that the first gear member has an elliptical shape.

According to this configuration, it is possible, with a relatively simple gear shape, to greatly change the momentum of the cover tape fed into the tape accommodating portion via the first gear member and the second gear member.

In the above configuration, the first gear member has a groove extending in the entire circumferential direction on its outer peripheral surface, and the tape take-up part is provided so as to partially intervene in the groove. It is preferable that a stripping pawl is provided for stripping the cover tape from the gear member as the first gear member rotates.

With this configuration, it is possible to forcibly separate the cover tape from the first gear member. Therefore, it is possible to prevent the cover tape from corotating and winding around the first gear member.

Moreover, in the above configuration, it is preferable that the meshing portion of the first and second gear members constitutes an entrance portion of the cover tape in the tape accommodating portion.

According to this configuration, the cover tape taken up by the tape take-up section passes through the meshing portion of the first and second gear members and is sent into the tape storage section at the same time. Therefore, the cover tape can be reliably accommodated in the tape accommodating portion.

On the other hand, a component mounting apparatus according to one aspect of the present invention includes a movable component mounting head and a component supply device that supplies components for mounting, and the head picks up components from the component supply device. 1. A component mounting apparatus for mounting a component on a substrate arranged at a predetermined working position, and comprising the component supplying device described above as the component supplying device.

Since this component mounting apparatus is provided with the component supply device as described above, it is possible to collect a larger amount of used cover tape into the component supply device (tape container). Therefore, it is possible to reduce the stoppage period due to the work of discarding the cover tape from the component supply device, in other words, to improve the substantial operating rate of the component mounting device.

According to the component supply device according to the present invention as described above, it is possible to more efficiently store the cover tape taken from the carrier tape in the tape storage unit. Also, according to the component mounting apparatus of the present invention, it is possible to improve the operation rate.

1 is a plan view of a component mounting apparatus of the present invention (a component mounting apparatus equipped with a component supply apparatus of the present invention); FIG. It is a schematic diagram which shows the internal structure of a tape feeder (component supply apparatus). FIG. 2 is a perspective view of a main portion (mainly a front end portion) of the tape feeder; It is a perspective view which shows the tape for component supply with which a tape feeder is mounted|worn. FIG. 3 is a schematic diagram showing a main part of a tape take-up mechanism in the tape feeder; (a) and (b) are schematic diagrams showing movements of a take-up roller and a pinch roller in a tape take-up mechanism. It is a schematic diagram of a take-up roller and a pinch roller according to a modification. It is a schematic diagram of a take-up roller and a pinch roller according to a modification. It is a schematic diagram of a take-up roller and a pinch roller according to a modification.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[Overall Configuration of Component Mounting Device]
FIG. 1 is a plan view of a component mounting apparatus 1 according to the present invention (a component mounting apparatus equipped with a component feeding apparatus according to the present invention). The component mounting apparatus 1 is equipment for producing a component-mounted substrate by mounting components such as electronic components on a substrate P such as a printed wiring board. In FIG. 1, XYZ rectangular coordinate axes are shown for clarification of directional relationships. The X direction is a direction parallel to the horizontal plane, the Y direction is a direction perpendicular to the X direction on the horizontal plane, and the Z direction is a direction (vertical direction) perpendicular to the X and Y directions.

The component mounting apparatus 1 includes a base 2 , a board transport section 3 that transports a board P, a component supply section 5 , and a head unit 7 that moves above the base 2 .

The board transfer section 3 includes a pair of conveyors 4 for transferring the board P in the X direction. Conveyor 4 is a belt conveyor. The board transfer section 3 receives the board P from the right side (X1 side) of FIG. After completing the component mounting work, the board transfer section 3 carries out the board P from the working position to the left side (X2 side) in the figure.

The component supply units 5 are arranged on both sides (Y1 side and Y2 side) of the board transfer unit 3 in the Y direction. A plurality of tape feeders 6 are arranged in parallel along the conveyor 4 in the component supply section 5 . The tape feeder 6 (corresponding to the "component supply device" of the present invention) is a device for supplying chip-like components (electronic components) for mounting such as resistors, transistors, and capacitors. The configuration of this tape feeder 6 will be detailed later.

The head unit 7 is a device that picks up components from the component supply unit 5 and mounts them on the substrate P. FIG. The head unit 7 is provided so as to be movable in the X direction and the Y direction by a head unit drive mechanism 8 . The head unit drive mechanism 8 is a so-called XY robot. Specifically, the head unit drive mechanism 8 includes a pair of fixed rails 10 each fixed to an elevated frame installed on the base 2 and extending in the Y direction. It includes a beam 11 (unit support member) extending in the X direction, and a ball screw shaft 12 screwed into the beam 11 and driven by a Y-axis servomotor 13 . The head unit driving mechanism 8 includes a fixed rail 14 fixed to the beam 11 and supporting the head unit 7 so as to be movable in the X direction, and an X-axis servomotor 16 which is screwed into the head unit 7 and driven. and a ball screw shaft 15. , the head unit driving mechanism 8 moves the head unit 7 in the X direction via the ball screw shaft 15 by driving the X-axis servomotor 16, and moves the head unit 7 via the ball screw shaft 12 by driving the Y-axis servomotor 13. Beam 11 is moved in the Y direction. This allows the head unit drive mechanism 8 to move the head unit 7 in the X and Y directions within a certain range above the base 2 .

The head unit 7 includes a plurality of shaft-shaped heads 7a extending in the Z direction (vertical direction) and a head driving mechanism (not shown) for driving these heads 7a. In this example, the head unit 7 includes a plurality of (five in the figure) heads 7a arranged in a row at regular intervals in the X direction.

The head drive mechanism includes a lift drive mechanism that individually lifts (moves in the Z direction) each head 7a, and a rotation drive mechanism that rotates each head 7a around the head center axis (R direction). The elevation drive mechanism has a plurality of Z-axis servo motors corresponding to each head 7a, and one Z-axis servo motor drives one head 7a. The rotary drive mechanism has one R-axis servomotor common to each head 7a, and the heads 7a are synchronized and driven integrally by this R-axis servomotor.

The tip of each head 7a is provided with a component suction nozzle. Each nozzle communicates with a negative pressure generator via a switching valve. Each nozzle has a negative pressure at its tip through compressed air supplied by the negative pressure generator. As a result, the component is attracted to the tip of the nozzle and held by the nozzle.

Note that the component mounting apparatus 1 includes a control device (not shown). Various operations such as transportation of the substrate P by the substrate transportation unit 3, supply of components by the tape feeder 6, and mounting of components by the head unit 7 are collectively controlled by this controller.

[Configuration of tape feeder 6]
The tape feeder 6 feeds a ribbon-shaped (belt-shaped) tape for supplying components, that is, a tape containing chip-shaped components (electronic components) such as resistors, transistors, capacitors, etc., to the head 7a. It is a device that supplies parts.

FIG. 4 is a perspective view showing an example of a component supply tape. As shown in the figure, the tape 80 is composed of a carrier tape 82 in which components are stored and a cover tape 84 attached thereto. The carrier tape 82 is made of synthetic resin or paper, and the cover tape 84 is made of synthetic resin.

The carrier tape 82 is formed with hollow component storage portions 83a opening upward at regular intervals in the longitudinal direction, and chip-like components such as resistors are stored in each of the component storage portions 83a. On one side of the carrier tape 82, engaging holes 83b are formed at regular intervals in the longitudinal direction along the edge of the carrier tape 82 so as to extend through the carrier tape 82 in the thickness direction.

The cover tape 84 is a film-like sheet, and is attached along the longitudinal direction of the carrier tape 82 so as to cover the opening of the component storage section 83a.

FIG. 2 is a schematic diagram showing the internal structure of the tape feeder 6, and FIG. 3 is a perspective view of the main part (mainly the front end part) of the tape feeder.

The tape feeder 6 has a shape elongated in the Y direction and flat in the X direction in plan view. As described above, a plurality of tape feeders 6 are arranged in parallel along the board transfer section 3 in the component supply section 5 . The side of the tape feeder 6 closer to the substrate transfer section 3 is the "front", and the side opposite to this is the "rear".

The tape feeder 6 is installed on a feeder mounting base (not shown) of the component supply section 5 . The tape feeder 6 has a feeder body 20 corresponding to a frame, a clamp 21 provided on the feeder body 20, a tape feeding mechanism 22, a tape take-up mechanism 24, a tape peeling member 26, and a tape accommodating portion 28.

The feeder body 20 is made of die-cast aluminum, for example, and a clamp 21 is provided on its lower surface. The clamp 21 detachably locks the tape feeder 6 to the feeder mount.

A tape guide portion 32 extending in the front-rear direction is formed in the feeder main body 20 . The tape guide portion 32 is a passage extending from the lower rear end of the feeder body 20 toward the upper front end thereof, and the inner bottom surface thereof is continuous with the upper surface of the front end portion of the feeder body 20 . Behind the tape feeder 6, a reel (not shown) around which the tape 80 is wound is arranged. The tape 80 is pulled out from this reel and guided to the upper front end of the feeder body 20 through the tape guide portion 32 .

A tape peeling member 26 extending in the front-rear direction (Y direction) is provided on the front upper portion of the feeder body 20 . A tape 80 is guided between this tape peeling member 26 and the upper surface of the feeder body 20 .

A slit 26 a extending in the width direction (X direction) of the feeder body 20 is formed in the tape peeling member 26 . The cover tape 84 of the tape 80 is folded back at the edge of the slit 26a and taken by the tape take-up mechanism 24 (corresponding to the "tape take-up part" of the present invention). As a result, the cover tape 84 is peeled off from the tape 80, and the component storage section 83a is opened upward at the component pick-up position PP in front of the slit 26a. That is, in the component mounting apparatus 1 (tape feeder 6), it is possible to pick up the component (stored component) by the head 7a at the component picking position PP.

The tape feeding mechanism 22 (corresponding to the “tape feeding portion” of the present invention) is a portion of the tape feeder 6 that feeds the tape 80 along the tape guide portion 32 while pulling it out from the reel. The tape delivery mechanism 22 is arranged on the front end side of the feeder body 20 .

The tape delivery mechanism 22 includes a delivery motor 40 , a sprocket 42 , and a gear train 44 that transmits the rotational driving force of the delivery motor 40 to the sprocket 42 . The sprocket 42 is arranged below the component pickup position PP. The teeth of the sprocket 42 are engaged with the engaging holes 83b of the tape 80. As shown in FIG. With this configuration, when the sprocket 42 is rotationally driven by the delivery motor 40, the tape 80 is pulled out from the reel and delivered to the component pick-up position PP.

The tape take-up mechanism 24 is a part of the tape feeder 6 for peeling off the cover tape 84 from the tape 80 (carrier tape 82). The tape take-up mechanism 24 is arranged above the tape guide portion 32 in the central portion of the feeder body 20 in the front-rear direction.

The tape take-up mechanism 24 includes a take-up motor 50 , a take-up roller 52 , a pinch roller 54 , and a gear train 56 that transmits the rotational driving force of the take-up motor 50 to the take-up roller 52 .

Both the take-up roller 52 and the pinch roller 54 are gears having teeth on the outer periphery. In this example, the take-up roller 52 corresponds to the "first gear member" of the invention, and the pinch roller 54 corresponds to the "second gear member" of the invention.

The take-up roller 52 and the pinch roller 54 are arranged to mesh with each other at the entrance of the tape storage section 28 . The cover tape 84 peeled from the carrier tape 82 and folded back by the tape peeling member 26 is caught between the take-up roller 52 and the pinch roller 54 . In other words, the take-up roller 52 and the pinch roller 54 sandwich the cover tape 84 from both sides in the thickness direction and mesh with each other. With this configuration, when the take-up roller 52 is rotationally driven by the take-up motor 50 , the cover tape 84 is taken up toward the tape accommodating portion 28 .

The take-up roller 52 is rotatably supported at a fixed position of the feeder body 20 . On the other hand, the pinch roller 54 is supported by the feeder body 20 so as to be displaceable with respect to the take-up roller 52 . Specifically, a lever 58 (corresponding to a “support portion” of the present invention) extending in the front-rear direction is provided on the upper portion of the feeder body 20 , and the pinch roller 54 is rotatably supported at the tip of the lever 58 . It is An intermediate portion of the lever 58 is rotatably supported by the feeder body 20 via a support shaft 58a. With this configuration, the pinch roller 54 can be displaced with respect to the take-up roller 52 along an arc-shaped track centered on the support shaft 58a.

Between the rear end of the lever 58 and the upper surface of the feeder body 20, a coil spring 60 (corresponding to the "biasing member" of the present invention) is interposed in a compressed state. As a result, the pinch roller 54 is urged in the direction of meshing with the take-up roller 52 (downward in this example). That is, the cover tape 84 can be inserted between the take-up roller 52 and the pinch roller 54 by separating the pinch roller 54 from the take-up roller 52 against the elastic force of the coil spring 60 . After that, the take-up roller 52 and the pinch roller 54 are reliably engaged with each other by the elastic force (biasing force) of the coil spring 60, and the cover tape 84 is stably engaged therebetween.

FIG. 5 is a schematic diagram showing a main part of the tape take-up mechanism 24. As shown in FIG. As shown in the figure, the pinch roller 54 has a perfect circular shape. On the other hand, the take-up roller 52 has a shape in which the linear distance from its rotation center 52a to the tip of the tooth (apex of the tooth) varies along the circumferential direction. In this example, take-up roller 52 is oval. Reference symbol Ld in FIG. 5 indicates the major axis (major diameter) of the take-up roller 52, and Sd indicates the minor axis (minor diameter). In this example, the long axis Ld and the short axis Sd of the take-up roller 52 generally satisfy the relationship of Sd<Ld<1.2×Sd. A difference (Ld-Sd) between the long axis Ld and the short axis Sd is about 0.5 mm to 0.3 mm. Further, as shown in FIG. 5, the major axis Ld of the take-up roller 52 is set larger than the diameter of the pinch roller 54 . That is, it can be said that the maximum diameter of the take-up roller 52 is larger than the maximum diameter of the pinch roller 54 . 5 indicates the center of rotation of the pinch roller 54. As shown in FIG.

In this example, by applying the elliptical take-up roller 52 in this way, the ability to accommodate the cover tape 84 in the tape accommodation section 28 described later is improved. This point will be described later.

Reference numeral 62 in FIG. 5 denotes a peeling claw. The peeling claw 62 is a portion of the tape feeder 6 that peels off the cover tape 84 from the take-up roller 52 . The peeling claw 62 is a plate-shaped member made of synthetic resin and having a substantially triangular shape when viewed from the side (viewed in the X direction). The stripping claw 62 is arranged behind the take-up roller 52 and fixed to the feeder body 20 . A slit-shaped groove portion 52b extending over the entire circumferential direction is formed on the outer peripheral surface of the take-up roller 52 and at the center portion in the width direction thereof. The peeling claw 62 is arranged such that the tip 62a (pointed angle portion) thereof faces upward, and only this tip 62a intervenes in the groove 52b. With this configuration, the cover tape 84 that has passed through the meshing portion Ep between the take-up roller 52 and the pinch roller 54 is forcibly peeled off from the surface of the pinch roller 54 by the peeling claw 62 .

Note that the take-up roller 52 is oval as described above. Therefore, the stripping claw 62 is arranged so that the tip 62a is always positioned between the inner bottom surface 521 of the groove 52b and the bottom circle 522 of the take-up roller 52 while the take-up roller 52 is rotating.

The tape housing portion 28 is provided in the rear portion of the feeder body 20 and above the tape guide portion 32 . The tape accommodation portion 28 is a space for accommodating the cover tape 84 taken by the tape take-up mechanism 24 . In this example, as shown in FIG. 2, the tape accommodating portion 28 has a substantially rectangular shape elongated in the front-rear direction when viewed from the side (viewed in the X direction).

An entrance portion for introducing the cover tape 84 is provided at the upper front end portion (corner portion) of the tape accommodating portion 28 . As described above, the take-up roller 52 and the pinch roller 54 are arranged at the inlet portion in a state of meshing with each other. Therefore, it can be said that the meshing portion Ep between the take-up roller 52 and the pinch roller 54 substantially constitutes the entrance portion of the cover tape 84 in the tape accommodating portion 28 .

An opening 28a is formed at the rear end of the tape accommodating portion 28. As shown in FIG. This opening 28 a is closed by a cover 34 . By removing the cover 34 to open the opening 28a, the cover tape 84 accumulated in the tape housing portion 28 can be discarded.

[Effect]
In the tape feeder 6 described above, the feeding operation of the tape 80 by the operation of the tape feeding mechanism 22 and the take-up operation of the cover tape 84 by the tape take-up mechanism 24 are executed in synchronization. As a result, the component storage portion 83a of the carrier tape 82 is opened upward at the component pick-up position PP, and the component can be picked up by the head 7a.

At this time, in the tape take-up mechanism 24, the take-up roller 52 is rotationally driven, so that the cover tape 84 caught (sandwiched) between the take-up roller 52 and the pinch roller 54 is pulled backward to store the tape. It is introduced into section 28 . Here, the take-up roller 52 is oval as described above. Therefore, when the take-up roller 52 rotates, the major axis Ld portion and the minor axis Sd portion of the take-up roller 52 change as shown in FIGS. ) alternately meshes with the pinch rollers 54, whereby the size and position of the contact area between the take-up roller 52 and the pinch roller 54 at the meshing portion Ep changes regularly as the take-up roller 52 rotates. do. Due to this change, the momentum of the cover tape 84 fed into the tape accommodating section 28 via the take-up roller 52 and the pinch roller 54 changes while the take-up roller 52 rotates once. In other words, the cover tape 84 fed into the tape accommodating portion 28 may be pressed relatively strongly or pressed relatively weakly.

Specifically, as shown in FIG. 6(a), the short axis Sd of the take-up roller 52 is engaged with the pinch roller 54, and as shown in FIG. When the portions come into engagement with the pinch roller 54, the cover tape 84 is pressed relatively hard. On the other hand, when the state where the long axis Ld of the take-up roller 52 meshes with the pinch roller 54 (FIG. 6B) changes to the state where the short axis Sd meshes with the pinch roller 54 (FIG. 6A). , the cover tape 84 is pressed relatively weakly.

In this way, the force of the cover tape 84 fed into the tape accommodating portion 28 through the engaging portion Ep changes, and the change in force of the cover tape 84 becomes a kind of peristaltic motion (or inchworm motion). As a result, the movement of the cover tape 84 toward the inner side of the tape accommodating portion 28 is promoted. Therefore, the cover tape 84 stays immediately behind the inlet of the tape accommodation portion 28, that is, in an area immediately behind the meshing portion Ep between the take-up roller 52 and the pinch roller 54 (the area indicated by the symbol Ar in FIG. 2). is effectively suppressed.

Therefore, according to the tape feeder 6, the cover tape 84 taken from the carrier tape 82 by the tape take-up mechanism 24 can be accommodated in the tape accommodating portion 28 more efficiently, that is, the entire tape accommodating portion 28 can be used more efficiently. It is possible to accommodate a larger number of cover tapes 84 by Further, according to the component mounting apparatus 1 equipped with this tape feeder 6, it is possible to reduce the work of discarding the cover tape 84 accumulated in each tape feeder 6 (tape accommodating portion 28). Therefore, it is possible to reduce the stoppage period for the disposal work, in other words, to improve the substantial operating rate of the component mounting apparatus 1 .

Again, FIG. 6 shows a schematic elliptical take-up roller 52 . The actual take-up roller 52 may be more circular in shape than the elliptical shape shown in FIG. The take-up roller 52 can be said to be "elliptical" if its length in the longitudinal direction (major axis Ld) is slightly larger than the length in the lateral direction (minor axis Sd). For example, the take-up roller 52 may have an elliptical shape with a longitudinal length (major axis Ld) of 30 mm and a lateral length (minor axis Sd) of 29 mm. The take-up roller 52 may have an elliptical shape with a difference of about 1.0 mm between the length in the longitudinal direction (major axis Ld) and the length in the lateral direction (minor axis Sd).

[Modification]
The component mounting apparatus 1 described above is an example of a preferred embodiment of a component mounting apparatus equipped with a tape feeder according to the present invention, and specific configurations of the component mounting apparatus 1 and the tape feeder 6 mounted thereon can be changed as appropriate without departing from the gist of the present invention. For example, it is possible to employ the following configuration.

(1) In the embodiment, the take-up roller 52 is elliptical and the pinch roller 54 is circular. However, the invention is not limited to this configuration. For example, take-up roller 52 may be circular and pinch roller 54 elliptical, or both take-up roller 52 and pinch roller 54 may be elliptical.

Further, although the take-up roller 52 is driven by the take-up motor 50 in the embodiment, the pinch roller 54 may be driven by the take-up motor 50 . With these configurations as well, it is possible to obtain the same effects as those of the embodiment.

(2) In an embodiment, as noted above, take-up roller 52 is oval. However, if the linear distance from the center of rotation 52a to the tip of the tooth of the take-up roller 52 varies along the circumferential direction, the same effects as in the embodiment can be obtained. Therefore, it is conceivable to adopt the configuration as shown in FIGS.

The take-up roller 52 shown in FIGS. 7 and 8 is an example having a profile in which a plurality of mountain-shaped portions 53 of the same shape are provided at equal intervals in the circumferential direction. Specifically, the take-up roller 52 in FIG. 7 has a profile with four peaks 53 , and the take-up roller 52 in FIG. 8 has six peaks 53 . It has a contoured shape. These take-up rollers 52 may have, for example, a difference of about 1.0 mm between the long axis Ld and the short axis Sd.

The take-up roller 52 shown in FIG. 9 itself has a perfect circular shape, but the rotation center 52 a of the take-up roller 52 is eccentric from the center O of the take-up roller 52 . For example, the rotation center 52a of the take-up roller 52 is eccentric from the center O of the take-up roller 52 by about 1.0 mm. It can be said that the linear distance from the center of rotation 52a to the tip of the tooth varies in the circumferential direction also in such a configuration. Therefore, it is possible to enjoy the same effect as the embodiment.

7 to 9, the take-up roller 52 and the pinch roller 54 can be exchanged as in the modified example (1).

(3) In the embodiment, the major axis Ld of the take-up roller 52 is set larger than the diameter of the pinch roller 54 . That is, the maximum diameter of the take-up roller 52 is larger than the maximum diameter of the pinch roller 54 , and the take-up roller 52 can be said to be larger in size than the pinch roller 54 . However, the invention is not limited to this configuration. For example, the diameter of the pinch roller 54 may be larger than the major axis Ld of the take-up roller 52, or the diameter of the pinch roller 54 and the major axis Ld of the take-up roller 52 may be the same. This point is the same when adopting the configurations of the modified examples (1) and (2) described above.

1 component mounting device 6 tape feeder (component supply device)
7 head unit 7a head 20 feeder body 22 tape delivery mechanism (tape delivery section)
24 tape take-up mechanism (tape take-up unit)
28 tape storage unit 50 take-up motor 52 take-up roller (first gear member)
52a rotation center 54 pinch roller (second gear member)
58 lever (supporting part)
60 coil spring (biasing member)
80 tape 82 carrier tape 84 cover tape Ld major axis Sd minor axis L distance Ep meshing part

Claims (7)

a tape sending unit for sending out a tape for supplying components, having a carrier tape in which components are stored at regular intervals and a cover tape attached to the carrier tape;
a tape take-up unit for taking back the cover tape to separate the cover tape from the carrier tape;
a tape storage unit that stores the cover tape taken by the tape take-up unit;
The tape take-up section includes a first gear member and a second gear member that sandwich the cover tape from both sides in the thickness direction thereof, are meshed with each other, and are rotationally driven to take the cover tape toward the tape storage section. ,
A parts feeding device, wherein the first gear member has different straight-line distances from its center of rotation to its tooth tip along the circumferential direction. In the component supply device according to claim 1,
The tape take-up portion includes a support portion that supports one of the first and second gear members so as to be displaceable with respect to the other gear member;
and an urging member that urges the gear member on the one side to mesh with the gear member on the other side. In the component supply device according to claim 1 or 2,
A component supply device, wherein the maximum diameter of the first gear member is larger than the maximum diameter of the second gear member. In the component supply device according to any one of claims 1 to 3,
The component supply device, wherein the first gear member is elliptical. In the component supply device according to any one of claims 1 to 4,
The first gear member has a groove portion extending over the entire circumferential direction on its outer peripheral surface,
The tape take-up part is provided so as to partially intervene in the groove part, and is provided with a peeling pawl for peeling the cover tape from the gear member as the first gear member rotates. Parts supply device. In the component supply device according to any one of claims 1 to 5,
A component supply device, wherein the meshing portion of the first and second gear members constitutes an entrance portion of the cover tape in the tape accommodating portion. Equipped with a movable component mounting head and a component supply device for supplying components to be mounted, wherein the head picks up a component from the component supply device and places the component on a substrate arranged at a predetermined working position. A component mounting device for mounting,
A component mounting apparatus comprising the component supply device according to any one of claims 1 to 6 as the component supply device.

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