JP2003188578A - Tape feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tape feeder in which damages to the tape can be prevented at the tape inlet. <P>SOLUTION: The tape feeder for pitch feeding the tape holding electronic components comprises a tape guide for guiding the tape 10 drawn from a supply reel disposed separately in a tape inlet 8c provided at a rear end of a body having a feed mechanism for pitch feeding the tape 10. The tape guide is a member having high flexibility and made a thin plate. The guide is deflection deformed by a load in a downward direction or a lateral direction to be transmitted via the tape 10 to thereby prevent the load of a concentrated weight from being applied to a specific site of the tape 10, thereby preventing the tape 10 from being damaged at the inlet 8c. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape feeder for feeding an electronic component held on a tape at a pitch and supplying the electronic component to a pickup position of an electronic component mounting apparatus. 2. Description of the Related Art In an electronic component mounting apparatus, a method using a tape feeder is known as a method for supplying an electronic component to a pickup position of a nozzle of a transfer head.
In this method, a tape holding an electronic component is pulled out from a supply reel, fed in pitches in synchronization with the mounting timing of the electronic component, and supplied to a nozzle. The tape is generally supplied in a state of being wound on a supply reel, and the tape is introduced into the main body from the rear end of an elongated main body provided with a tape feeding mechanism for feeding the tape at a pitch. As a method of arranging the supply reel, a method of arranging the supply reel separately from the main body is adopted instead of mounting the supply reel on a reel holder provided integrally with the main body. It has become. According to this method, it is not necessary to remove the main body every time the reel is replaced, and the reel can be replaced while continuing the mounting operation by adding the already mounted tape and the newly supplied tape. There are advantages. [0004] However, if the above-described reel-by-reel arrangement method is applied to a conventional tape feeder, there is a risk that the tape may be damaged when the tape is handled during reel replacement work. That is, since the reel is arranged separately from the main body, the tape pulled out from the supply reel is directly introduced into the tape inlet of the main body as it is. At this time, if an external force acts on the tape for some reason, such as when the supply reel is mounted in a fixed position or when the tape is pulled out, the tape may easily be damaged at the tape introduction port, such as bending of the tape. Was. Accordingly, an object of the present invention is to provide a tape feeder capable of preventing a tape from being damaged at a tape inlet. According to a first aspect of the present invention, there is provided a tape feeder for feeding an electronic component to a pickup position of an electronic component mounting apparatus by feeding a tape holding the electronic component at a pitch. A main body provided with a tape feeding mechanism for feeding the tape at a pitch, and the tape supplied from a tape supply unit provided at a rear end of the main body and disposed separately from the main body. A tape introduction port to be introduced, and a flexible guide member provided outside the tape introduction port to guide a tape sent from the tape supply unit, and the downward direction in which the guide member is transmitted via the tape. By causing bending deformation by a load in the lateral direction, a concentrated load is prevented from being applied to a specific portion of the tape. According to the present invention, a flexible guide member for guiding the tape sent from the tape supply unit is provided outside the tape introduction port, and the guide member is moved downward or laterally through the tape. As a result, the concentrated load on a specific portion of the tape can be prevented, and the tape can be prevented from being damaged. Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an electronic component mounting apparatus to which a tape feeder of one embodiment of the present invention is mounted, FIG. 2 is a side view of the tape feeder of one embodiment of the present invention,
FIG. 3 is an explanatory view of a mechanism of a tape feeder according to an embodiment of the present invention, FIG. 4 is an explanatory view of a shape of a tape guide of the tape feeder of an embodiment of the present invention, and FIG. It is a function explanatory view of a tape guide of a tape feeder. First, an electronic component mounting apparatus will be described with reference to FIG. In FIG. 1, an electronic component mounting apparatus 1 includes:
It has two mounting stages 2. On the upstream mounting stage 2, a substrate 4 is inserted through a substrate loading port 3 provided on the side surface.
Is carried in. The electronic components picked up from the component supply unit 5 are mounted on the substrate 4 positioned on a transport path (not shown). A plurality of tape feeders 8 are mounted on the component supply unit 5. The tape feeder 8 includes the component supply unit 5
A large number of units are arranged in parallel on a feeder base 6 provided on the carriage 7, and a tape holding electronic components is pulled out from a supply reel 9 (tape supply unit) mounted on a carriage 7 and pitch-fed. Thus, the electronic components are supplied to the electronic component pickup positions of the respective mounting stages 2. Next, the overall structure of the tape feeder 8 will be described with reference to FIG. As shown in FIG. 2, the tape feeder 8 is mounted on the upper surface of the feeder base 6 with the lower surface of the main body 8 a along the lower surface thereof. The tape feeder 8 is fixed by being locked to the end. Locking part 8b
Has a built-in connector for connecting electric wiring such as a power supply and a control signal of the tape feeder 8 to an electric circuit of the electronic component mounting apparatus 1. Connection is completed. In FIG. 2, a sprocket 11 is provided at the front end (right side in FIG. 2) of the tape feeder 8. The teeth of the sprocket 11 are tape feed holes 10d provided at a constant pitch in the tape 10 (see FIG. 3).
And the sprocket 1 by the tape feed mechanism 12
The pitch rotation of 1 causes the tape 10 having the configuration in which the top tape 10a is stuck on the base tape 10b to be pitch-fed. By this tape feeding, the tape 10 is pulled out from the supply reel 9. Tape 10 pulled out
Is guided by a tape guide 16 provided at the rear end of the tape feeder 8, guided from the tape inlet 8c into the main body 8a, and sent forward along the tape feed path 8d. The tip of the tape feeder 8 is the transfer head 1
The electronic component is picked up by the electronic component 7, and the sent tape 10 is pitch-fed below the pressing member 13 provided on the upper surface of the tip. During the pitch feeding, the electronic component 18 held in the concave portion 10c of the base tape 10b is picked up by the transfer head 17 through the opening 13a provided in the pressing member 13. Prior to picking up the electronic component 18, the top tape 10a is peeled off from the upper surface of the base tape 10b, folded back, and stored in the tape storage container 15 by the top tape feed mechanism 14. Next, the tape feed mechanism 12 and the top tape feed mechanism 14 will be described with reference to FIG.
In FIG. 3, a sprocket 11 for feeding the tape 10 at a pitch is rotationally driven by a motor 20. The sprocket 11 performs an intermittent rotation operation corresponding to the pitch feed operation, and the rotation stop position at the time of the intermittent rotation is mechanically positioned by the positioning mechanism 23. Pins 11a are provided on the outer periphery of the sprocket 11 at a constant pitch, and the tape is fed by rotating the sprocket 11 with the pins 11a fitted into holes 10d provided in the tape 10. A peeling member 13b is provided in front of the pickup position of the transfer head 17, and the top tape 10a is peeled by the peeling member 13b from the upper surface of the tape 10 sent forward (to the right in the drawing). It is folded back. The folded top tape 10a is
The tape is fed into the tape storage container 15 by the rotary feed members 33 and 34 of the top tape feed mechanism 14. The rotation of the rotation feed members 33 and 34 is performed by rotating the motor 30 through the bevel gear 31 and the transmission gear member 32.
4 is transmitted. A tension mechanism 35 having a movable tension roller 36 is provided in front of the rotary feed members 33 and 34.
Are arranged. The tension roller 36 is held by a lever member 38a having a fulcrum coaxial with the guide roller 37, and the peeled top tape 10a goes around the upper side of the guide roller 37 and the lower side of the tension roller 36 and is guided rearward. . A spring 39 is connected to an arm 38b integral with the lever member 38a, and the lever member 38a and the arm 38b are constantly urged downward by the spring 39. Thus, tension is applied to the top tape 10a by the tension roller 36. When the top tape 10a becomes slack at the position of the tension mechanism 35, the tension roller 36 moves downward. At the same time, the arm member 38b is rotated by the urging force of the spring 39, and the dog 38c provided at the tip is displaced downward. By detecting this displacement by the photo switch 40, the top tape 1
A slack of 0a is detected. When the slack is detected, the motor 30 is immediately driven to rotate, whereby the slack top tape 10a is fed into the tape storage container 15, and
A predetermined tape tension is maintained. Next, the tape guide (guide member) 16 provided at the tape inlet 8c of the tape feeder 8 will be described with reference to FIGS. The tape guide 16
The tape 10 pulled out from the supply reel 9 is attached to the main body 8.
This is a member for guiding to the tape introduction port 8c of FIG. FIG.
As shown in FIG. 5, the tape guide 16 is manufactured by bending a thin metal plate, and a flange 16b bent at a right angle is formed on a curved strip 16a provided downward from the tape inlet 8c. The configuration is partially provided. As shown in FIG. 5, the strip 16a is guided from below by contacting the lower surface of the tape 10 guided to the tape inlet 8c.
From the strip 16a. The strip 16a is thin and highly flexible, and a load is applied to the tape 10 downward (in the direction of arrow a) or laterally to the tape surface (in the direction of arrow b) as shown in FIG. When a load acts on the strip 16a via the tape 10, the strip 16a undergoes bending deformation. At this time, the strip 16a is
To bend and deform according to the load applied to the tape.
0 is in a state of contacting the entire surface of the upper surface of the strip 16a irrespective of the magnitude and direction of the load. Therefore, the specific portion of the tape 10 is partially
No concentrated load is applied to the tape 10 by being pressed against the tape 10 or other fixed parts. Further, as shown in FIG.
When a lateral load is applied to the tape 10 in a direction parallel to the tape surface (the direction of arrow c), the tape 10 moves in the load direction, and the side surface of the tape 10 has a flange 16b in the direction in which the load is applied.
Abut. At this time, the strip 16a
Is deformed in the load direction, so that a concentrated load is not applied to the tape 10 at the tape inlet 8c. As described above, by providing the tape guide 16 having the above-described configuration at the rear end of the tape feeder 8, when the supply reel 9 is arranged separately from the main body 8a of the tape feeder 8, When an external force acts on the tape 10 when the supply reel 9 is connected to the tape feeder 8 via the
There is no breakage such as bending. According to the present invention, a flexible guide member for guiding the tape sent from the tape supply unit is provided outside the tape inlet, and the guide member is transmitted through the tape. The bending deformation caused by the load in the direction or the lateral direction can prevent a concentrated load from being applied to a specific portion of the tape and prevent the tape from being damaged.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an electronic component mounting apparatus to which a tape feeder according to one embodiment of the present invention is mounted. FIG. 2 is a side view of the tape feeder according to one embodiment of the present invention. FIG. 3 is an explanatory view of a mechanism of a tape feeder according to an embodiment of the present invention. FIG. 4 is an explanatory view of a shape of a tape guide of the tape feeder of an embodiment of the present invention. Functional description of the tape guide of the tape feeder [Description of symbols] 1 Electronic component mounting device 6 Feeder base 8 Tape feeder 8a Main body 8c Tape introduction port 9 Supply reel 10 Tape 11 Sprocket 12 Tape feed mechanism 14 Top tape feed mechanism 15 Tape Storage container 16 Tape guide 16a Strip 16b Flange 17 Transfer head

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Hidehiro Saho             Matsushita Electric, 1006 Kadoma, Kazuma, Osaka             Sangyo Co., Ltd. F term (reference) 5E313 AA15 DD01 DD02 DD31

Claims (1)

Claims 1. A tape feeder for feeding an electronic component to a pickup position of an electronic component mounting apparatus by feeding a tape holding an electronic component at a pitch, wherein the tape feed feeds the tape at a pitch. A main unit having a mechanism, a tape inlet provided at a rear end of the main unit, and a tape introduction port for introducing the tape supplied from a tape supply unit separately disposed from the main unit to the main unit; A flexible guide member provided outside the mouth for guiding the tape sent from the tape supply unit, wherein the guide member is bent and deformed by a downward and / or lateral load transmitted through the tape. The tape feeder is characterized in that a concentrated load is prevented from being applied to a specific portion of the tape.