JP2003267441A - Carrier tape for electronic component, and electronic component feeding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carrier tape and an electronic component-feeding device by which a feeding location can be stabilized by always aligning electronic components in one direction when the feeding of electronic components is stopped, and at the same time, the inversion of the front and rear surfaces of the electronic components can be reduced at the time of the opening motion of a shutter. <P>SOLUTION: When this carrier tape C is intermittently fed by a tape-feeding mechanism 22, a cover tape-taking up mechanism 23 synchronously takes up a cover tape Ca while peeling it. Then, when the tape-feeding mechanism 22 and the cove tape- taking up mechanism 23 stop, the shutter 61 is opened to the component A which is fed into a picking up location. In this case, a part-housing section D is formed in a manner to be diagonally tilted to the feeding direction, and therefore, by a moment of inertia at the time when the feeding of the component A is stopped, the component A can be neared to a corner part at the feeding distal end section. Since the opening-movement direction of the shutter 61 does not cross the longitudinal direction or the lateral direction of the component A, the inversion of the front and rear surfaces of the component A can be reduced at the time of the opening of the shutter. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carrier tape for an electronic component in which component storage units for storing electronic components are arranged at a predetermined interval, and a carrier tape having the electronic component mounted in the storage unit. The present invention relates to an electronic component supply device that intermittently feeds to a pickup position by a tape feeding mechanism.

[0002]

2. Description of the Related Art Conventionally, as this type of electronic component supply device, one described in Japanese Patent Laid-Open No. 5-335785 is known. This electronic component feeding device feeds electronic components mounted on a carrier tape to the mounting device body one by one, and a tape feeding mechanism for intermittently feeding the carrier tape to feed the electronic components to a pickup position, and this feeding device. Prior to the above, a cover tape take-up mechanism for peeling off the cover tape of the carrier tape, and a shutter mechanism for opening the upper side of the electronic component sent to the pickup position to enable the electronic component to be picked up. Then, these mechanisms operate by interlocking with each other by inputting power from the mounting apparatus main body.

That is, when the carrier tape is intermittently fed once by the tape feeding mechanism, in synchronization with this, the cover tape winding mechanism peels (peeles) the cover tape for one intermittent feeding. When the tape feeding mechanism and the cover tape winding mechanism stop, the shutter mechanism operates,
The shutter is opened for the electronic component sent to the pickup position. When the shutter is opened, electronic components are picked up (adsorbed), and then the shutter is closed.

In such a conventional electronic component supplying apparatus,
One side in the longitudinal direction of the component storage portion having a rectangular shape in plan view of the carrier tape is formed to be vertical to the supply direction, and the tip of the shutter is also formed to be vertical.

[0005]

Therefore, since the component storage section is formed to have a large size for accommodating the electronic components, the supply position of the electronic components sent to the pickup position varies accordingly. In addition, since the moving direction of the shutter and the lateral direction of the electronic component are orthogonal to each other during the opening operation of the shutter, the electronic component may be turned upside down.

Therefore, the present invention provides a carrier tape for an electronic component, which can be always moved in one direction when the supply of the electronic component is stopped to stabilize the supply position and reduce the reverse of the electronic component when the shutter is opened. It is an object to provide an electronic component supply device.

[0007]

Therefore, according to the present invention, in a carrier tape of an electronic component in which component storage portions for storing electronic components are arranged at a predetermined interval, the storage portion is provided in the supply direction. It is characterized by being formed at an angle.

A second aspect of the present invention is an electronic component supply device for intermittently feeding a carrier tape having an electronic component mounted in its storage portion to a pickup position by a tape feeding mechanism, in which the component storage portion of the carrier tape is arranged in a supply direction. A shutter mechanism is provided which is formed to be inclined with respect to the above, and a shutter which is provided at the pickup position so as to be able to move forward and backward is operated to open so that the upper portion of the component storage portion of the carrier tape is opened to pick up electronic components. It is characterized by

Further, a third aspect of the present invention comprises a tape feeding mechanism for intermittently feeding a carrier tape having an electronic component mounted in its storage portion to a pickup position, and a shutter provided for advancing and retreating at the pickup position to perform an withdrawing operation, and the carrier tape. In an electronic component supply device having a shutter mechanism that opens the upper part of the component storage part to enable picking up of electronic components, the component storage part of the carrier tape is formed to be inclined with respect to the supply direction. At the same time, a notch is formed at the front end of the shutter of the shutter mechanism so that the shutter can be opened while avoiding the rear end corner of the housing for housing electronic components to be picked up.

[0010]

DETAILED DESCRIPTION OF THE INVENTION An electronic component mounting apparatus to which an electronic component supply apparatus according to an embodiment of the present invention is applied will be described below with reference to the accompanying drawings. This electronic component mounting apparatus is a so-called multifunctional chip mounter and can mount various electronic components A on the printed circuit board P.

FIG. 1 is a plan view of the electronic component mounting apparatus,
As shown in the figure, the electronic component mounting apparatus 1 includes a machine base 2 and
A conveyor section 3 extending in the left-right direction at the center of the machine base 2.
And two sets of component mounting parts 4 and 4 and two sets of component supply parts 5 and 5 respectively arranged at the front part (lower side in the figure) and the rear part (upper side in the figure) of the machine base 2. . A plurality of component supply units 6, which are electronic component supply devices, are detachably incorporated in the component supply unit 5.

The conveyor section 3 has a central set table 8, a left supply conveyor 9 and a right discharge conveyor 10. The substrate P is supplied from the supply conveyor 9 to the set table 8 and is set immovably and at a predetermined height so as to receive mounting of electronic components on the set table 8. Then, the board P on which the electronic components have been mounted is discharged from the set table 8 to the downstream side device via the discharge conveyor 10.

A head unit 13 is provided in each component mounting portion 4.
A component recognition camera 14 and a nozzle stocker 15 are provided as well as an XY stage 12 in which is mounted movably. The head unit 13 has two mounting heads 16, 16 for sucking and mounting electronic components.
And one board recognition camera 17 for recognizing the board P.
And are installed. In addition, normally, both component mounting parts 4, 4
The XY stages 12 and 12 are alternately operated.

In each of the XY stages 12, the beam moves in the Y direction by the Y axis motor, the head unit 13 moves in the X direction by the X axis motor, and as a result, the head unit 13 moves in the XY direction. .

Each component supply unit 5 has a large number of component supply units (electronic component supply devices) 6 on a unit base 19.
Equipped horizontally and detachably. Each component supply unit 6 is loaded with a carrier tape C, which will be described later, that accommodates a large number of electronic components at regular intervals. By intermittently feeding the carrier tape C, the component mounting unit 6 is attached to the component mounting portion. The electronic parts are supplied to 4 one by one. In the electronic component mounting apparatus 1, relatively small electronic components such as surface mount components are mainly used in the component supply unit 6
The relatively large electronic components are supplied mainly from a tray type component supply device (not shown).

In operation based on NC data of the electronic component mounting apparatus 1, first, the XY stage 12 is driven to expose the head unit 13 to the component supply unit 6, then the mounting head 16 is lowered, and the suction nozzle 18 is used. Adsorb (pick up) desired electronic components. Subsequently, after the mounting head 16 is lifted, the XY stage 12 is driven to move the electronic component to a position directly above the component recognition camera 14, and the suction posture and the positional deviation with respect to the suction nozzle 18 are recognized. Next, the mounting head 16 is moved to the position of the substrate P on the set table 8, and the substrate recognition camera 17 is used to move the substrate P.
After recognizing the position of the electronic component A, the X-axis motor and the Y-axis motor of the XY stage 12 and the θ-axis motor of the suction nozzle 18 are corrected and moved based on the recognition results by the component recognition camera 14 and the board recognition camera 17. Is mounted on the substrate P.

The XY stage 12 of the embodiment includes
Two mounting heads (suction nozzles 18) 16 and 16 are mounted, and it is also possible to continuously suck two electronic components and sequentially mount them on the substrate P. Although not shown, when a mounting head having a plurality of suction nozzles is mounted, it is also possible to successively suck and mount a plurality of electronic components.

Next, the component supply unit 6 will be described with reference to FIG. The component supply unit 6 is the device frame 2
1, a carrier tape reel (not shown) rotatably mounted on the apparatus frame 21, a tape feeding mechanism 22 for intermittently feeding the carrier tape C fed from the carrier tape reel to the pickup position of the electronic component A, and the pickup position The cover tape Ca of the carrier tape C is peeled off and the cover tape winding mechanism 23 for winding the carrier tape C and the upper side of the electronic component A sent to the pickup position are opened to enable the electronic component A to be picked up. The shutter mechanism 24 includes a tape feed mechanism 22, a cover tape winding mechanism 23, a drive cylinder 25 that is a drive source of the shutter mechanism 24, and a controller 26 that controls the drive cylinder 25. The controller 26 is incorporated in a control system that controls the entire electronic component mounting apparatus 1.

Carrier tape C carrying electronic component A
Is provided in a state of being wound around a carrier tape reel. The carrier tape C fed from the carrier tape reel is fed to the pickup position so as to go under the suppressor 27 arranged on the tape path before the pickup position. A portion of the suppressor 27 around the pickup position is notched, and a shutter 61 of the shutter mechanism 24 described later is incorporated in this portion. A slit 28 is formed in the suppressor 27 in front of the shutter 61, and the cover tape Ca of the carrier tape C is peeled off from the slit 28,
It is wound on a cover tape reel 51 of a cover tape winding mechanism 23 described later. That is, the carrier tape C
The electronic component A mounted on the shutter 61 is mounted on the shutter 61 at the pickup position with the cover tape Ca peeled off.
To face.

The drive cylinder 25 has its cylinder body 3
The tail end of the device 1 is swingably supported by the apparatus frame 21, and the piston rod 32 has a tip end thereof with a transmission plate for transmitting power to the tape feeding mechanism 22, the cover tape winding mechanism 23, and the shutter mechanism 24. 33 is fixed. As the piston rod 32 moves forward and backward, the transmission plate 33 moves forward and backward while swinging, and its backward movement (pulling movement).
Then, the carrier tape C is fed by the tape feeding mechanism 22 and the cover tape C by the cover tape winding mechanism 23.
and the shutter 61 by the shutter mechanism 24.
The closing operation of the shutter mechanism 24 is performed in the forward movement.
Then, the shutter 61 is opened.

The tape feeding mechanism 22 is a carrier tape C.
And a sprocket 41 that meshes with and feeds the feed hole Cb formed in the above, a ratchet wheel 42 that is fixed so as to overlap with the sprocket 41 and is coaxially disposed, and that meshes with the ratchet wheel 42 and intermittently rotates the ratchet wheel 42. And a feed lever 44 that rotatably supports the feed claw 43 via a support shaft 46 and that is swingably provided coaxially with the ratchet wheel 42.
And have. The transmission plate 33 is rotatably connected to the end of the feed lever 44 via a support shaft 45, and the transmission plate 33 is formed by extending the rod 32.
, The feed lever 44 swings, the feed claw 43 passes over the teeth of the ratchet wheel 42, and conversely, the feed lever 44 swings as the transmission plate 33 moves due to the contraction of the rod 32.
The feed claw 43 intermittently rotates the ratchet wheel 42 clockwise in FIG. When the ratchet wheel 42 rotates intermittently, the sprocket 41 also rotates intermittently at the same time to intermittently feed the carrier tape C through the feed hole Cb.

The cover tape take-up mechanism 23 includes a cover tape reel 51 rotatably attached to the apparatus frame 21, a one-way clutch 53 incorporated in a shaft portion 52 of the cover tape reel 51, and a one-way clutch 53. It has a feed lever 54 that intermittently rotates the cover tape reel 51 in one direction, and a connecting arm 55 that connects the feed lever 54 and the transmission plate 33. The connecting arm 55 has one end fixed to the transmission plate 33, extends rearward in parallel with the drive cylinder 25, and is rotatably attached to the feed lever 54 via a support shaft 56. When the feed lever 54 swings through the connecting arm 55 as the transmission plate 33 moves back and forth, the cover tape reel 51 intermittently rotates in one direction (winding direction) due to the interaction between the feed stopper (not shown) and the one-way clutch 53. To do. As a result, the cover tape Ca peeled off from the carrier tape C is wound around the cover tape reel 51 without slack.

The shutter mechanism 24 is a shutter 6 slidably provided at the end of the pressing piece 27a of the suppressor 27.
1 and a connecting link 62 extending from the tail end of the shutter 61.
A rotating link 63 whose upper end is rotatably connected to the tail end of the connecting link 62, and an operating pin 64 which is attached to the lower end of the connecting arm 55 and abuts on the rotating link 63.
And a coil spring 65 for urging the rotation link 63 in the direction of opening the shutter 61. In this case, the rotary link 63 is rotatably attached to the device frame 21 at an intermediate position in the longitudinal direction, and the coil spring 65 is stretched between the lower end of the rotary link 63 and the device frame 21. ing.

The shutter 61 advances and retracts (opens and closes) by using the pin 29 as a guide by engaging a pair of pins 29, 29 provided on the side surface of the suppressor 27 with a long hole 61a.
The upper part of the carrier tape C facing the pickup position is opened and closed. That is, the shutter 61 moves to the closed position, and the electronic component A sent to the pickup position.
Is held so as not to jump out from the storage portion D of the carrier tape C, and in the state where the carrier tape C is moved to the open position, it is retracted from the upper side of the electronic component A so as to be picked up.
In addition, the storage portion D is formed to be large with a little room for storing electronic components.

As shown in FIGS. 3 to 5, the carrier tape C is provided with a component storage portion D having a rectangular shape in plan view, which is inclined and recessed obliquely with respect to the supply direction, and the tip of the shutter 61. In order to make the movement amount of the shutter 61 as small as possible and to cope with the speedup of suction, a notch is formed in the portion so that the electronic component A to be picked up can be opened while avoiding the rear end corner portion of the storage portion D. The part 61b is formed.

When the connecting arm 55 moves rearward with the winding operation of the cover tape winding mechanism 23, the operating pin 64 rotates the rotating link 63 against the coil spring 65, and the connecting link 62 is inserted. To move the shutter 61 forward (close operation). On the contrary, when the connecting arm 55 moves forward, the coil spring 65 rotates the rotating link 63 in the opposite direction, and the shutter 61 is retracted (opening operation) via the connecting link 62.

On the other hand, a stroke adjusting mechanism 30 for adjusting the forward / backward stroke of the shutter 61 is provided near the upper end of the rotary link 63. The stroke adjusting mechanism 30 is composed of a long hole 71 formed in the side surface of the suppressor 27 and extending in the horizontal direction (the direction in which the shutter advances and retracts), and a stopper screw 72 screwed into the long hole 71.
By fastening the stopper screw 72 to an appropriate position in the extending direction of the elongated hole 71, the open end position of the shutter 61 is regulated and the forward / backward stroke of the shutter 61 is adjusted.

The mutual timings of feeding the carrier tape C, winding the cover tape Ca, and opening and closing the shutter 61 will be described. When the carrier tape C is intermittently fed once by the tape feeding mechanism 22, the cover tape winding mechanism 23, in synchronization with this, winds the cover tape Ca while peeling (peeling) one intermittent feeding. Subsequently, when the tape feeding mechanism 22 and the cover tape winding mechanism 23 are stopped (idling operation), the shutter mechanism 2
4 opens to open the shutter 61 for the electronic component A sent to the pickup position.

In this case, the carrier tape C has a rectangular shape in plan view, and is formed with a component storage portion D which is formed with a slight margin to accommodate electronic components and is inclined with respect to the supply direction. Tape feeding mechanism 2
When the feeding of the electronic component by (2) is stopped, the electronic component can always be brought closer to the corner of the supply tip portion by the moment of inertia when the feeding is stopped (see FIG. 4), so that the suction position does not vary and stable suction can be performed. Also, the feeding stops,
When the shutter mechanism 24 performs the opening operation (see FIG. 5), since the moving direction of the shutter 61 and the longitudinal direction or the lateral direction of the electronic component A are not orthogonal to each other, the electronic component A faces the front and back when the shutter 61 opens. You can reduce flipping.

When the shutter 61 opens,
The electronic head A is picked up (adsorbed) by the mounting head 16 and then the shutter 61 is closed. At the same time, the carrier tape C is intermittently fed and the cover tape Ca is wound.

The shutter 61 is formed with a notch 61b in order to minimize the amount of movement thereof and to cope with the speedup of suction. As shown by the one-dot chain line in FIG. Even in an electronic component supply device having a shutter in which a notch portion is not formed, the carrier tape C has a rectangular shape in a plan view, and the component storage portion D is provided in a larger size with a little margin for storing electronic components. When the tape feeding mechanism 22 stops feeding the electronic component, the tape can be always brought closer to the corner of the supply tip portion due to the moment of inertia when the tape feeding mechanism 22 stops feeding (see FIG. 4). There is no variation in the suction position, stable suction can be performed, and when the feeding is stopped and the shutter mechanism 24 performs the opening operation, the moving direction of the shutter and the electronic component A are similar to those in the above-described embodiment. Because it is not perpendicular to the longitudinal direction or lateral direction it can be reduced that the electronic component A is reversed at the time of opening operation of the shutter.

Although a so-called multifunctional chip mounter has been described as an example of the electronic component mounting device, the electronic component mounting device is not limited to this, and may be applied to a rotary table type high-speed chip mounter.

Although the embodiments of the present invention have been described above, various alternatives, modifications or variations can be made by those skilled in the art based on the above description, and the present invention is described above without departing from the spirit thereof. Various alternatives, modifications or variations of.

[0034]

As described above, according to the present invention, when the supply of electronic components is stopped, the electronic components can always be moved in one direction to stabilize the supply position and the electronic components are prevented from being turned upside down when the shutter is opened. It is possible to provide a carrier tape for electronic components and an electronic component supply device that can be used.

[Brief description of drawings]

FIG. 1 is a plan view of an electronic component mounting device equipped with an electronic component supply device according to the present invention.

FIG. 2 is an enlarged side view of a front portion of the component supply unit.

FIG. 3 is an explanatory diagram showing a relationship between a shutter and a carrier tape when an electronic component is on standby for feeding.

FIG. 4 is an explanatory diagram showing a relationship between a shutter and a carrier tape during feeding of electronic components.

FIG. 5 is an explanatory diagram showing a relationship between a shutter and a carrier tape when feeding of electronic components is stopped.

[Explanation of symbols]

1 Electronic component mounting device 5 Parts supply department 6 parts supply unit 16 mounting head 18 Suction nozzle 22 Tape feeding mechanism 23 Cover tape winding mechanism 24 Shutter mechanism 25 drive cylinder 61 shutter 61b Notch A electronic parts C carrier tape Ca cover tape D storage

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yoshinori Kano             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. F term (reference) 3E067 AA11 AB47 AC04 AC18 BA34A                       EA29 EA32 EB27 EC08 EE46                       FA01 FC01 GD10                 3E096 AA06 BA09 BB08 CA15 CC01                       DA04 DB06 DC01 FA09 FA31                       FA40 GA01                 5E313 AA18 DD34

Claims (3)

[Claims] 1. A carrier tape for electronic components, wherein component storage units for storing electronic components are arranged at a predetermined interval, wherein the storage units are formed to be inclined with respect to the supply direction. Carrier tape for electronic components. 2. An electronic component supply device for intermittently feeding a carrier tape having an electronic component mounted in its storage portion to a pickup position by a tape feed mechanism, wherein the component storage portion of the carrier tape is inclined with respect to the supply direction. And a shutter mechanism that allows the electronic component to be picked up by opening and closing a shutter provided at the pickup position so that the shutter can move forward and backward to open the upper part of the component storage portion of the carrier tape. Electronic component supply device. 3. A tape feeding mechanism for intermittently feeding a carrier tape having electronic parts mounted in its storage portion to a pickup position, and a shutter provided for advancing and retreating at the pickup position to move out to move the carrier tape component storage portion. In an electronic component supply device including a shutter mechanism that opens an upper part to enable picking up of electronic components, the component storage portion of the carrier tape is formed to be inclined with respect to a supply direction, and the shutter mechanism is also provided. An electronic component supply device, characterized in that a notch is formed at a front end portion of the shutter so as to avoid opening a rear end corner portion of a storage portion capable of storing an electronic component to be picked up.