JPH06135623A - Tape feeder - Google Patents

Abstract

PURPOSE:To surely prevent jump-out of parts by means of a shutter closing a part takeout opening at other times than part takeout in a mounting apparatus wherein chip parts contained at specific intervals in a tape are automatically mounted on substrate. CONSTITUTION:Tape 8 led out from a reel shaft-fixed in a tape feeder is introduced to a part takeout portion 1, and a cover tape 8b is stripped off at its front end. Then, when the tape proper 8a is taken out forward intermittently along a tape guide groove under a tape protection ember 54, chip part 9 contained in a part containing portion 8c of the tape 8 is taken out at an opening portion 57 by an attraction head, so that it is mounted on a substrate. In this case, until completion of takeout of a part, the part 9 is protected not to jump out from the opening portion 57 by a side peripheral part 61 of a shutter member 60 at the closure position. When a part is to be taken out, this takeout of a part 9 is allowed owing to the shutter member 60 moving to left in a cutout portion 58.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape feeder for successively supplying chip components to a predetermined position using a tape as a carrier for mounting the chip components on a substrate in a mounting machine.

[0002]

2. Description of the Related Art Conventionally, a mounting machine for mounting chip components on a printed circuit board is equipped with a tape feeder, and the tape feeder is used to feed a large number of chip components one after another to a predetermined position. It is generally known that the chip component is taken out from the tape feeder at the predetermined position.

The above tape feeder is disclosed in, for example, Japanese Patent Laid-Open No.
As disclosed in Japanese Patent No. 243563, a tape, which is composed of a tape body and a cover tape and stores a large number of chip components at regular intervals, is wound around a reel in advance, and the reel is attached to a rear portion of a feeder. , The tape led out from this reel is guided to the component take-out part in front of the feeder, and the cover tape is peeled off from the tape body at this part take-out part so that the chip parts can be taken out, and the feeding mechanism causes an intermittent operation. While the tape is being paid out, the chip parts are taken out one after another.

[0004]

In this type of tape feeder, the above-mentioned component take-out portion is usually provided with a tape passage portion in order to prevent the tape from rising and to prevent the component from jumping out until a predetermined position is reached. A tape protection member located above is provided. An opening portion is formed in the tape protection member at a predetermined position, and the opening allows the component to be taken out.

Further, in order to prevent the chip component from unexpectedly jumping out from the opening portion except when the component is taken out,
It is also conceivable to provide a shutter member that is slidable with respect to the tape protection member so that the open portion is closed except when the component is taken out and the open portion is opened when the component is taken out.

By the way, as a guide portion for sliding the shutter member with respect to the tape protection member, a structure in which a long and narrow cutout portion for guiding is provided in the tape protection member and a side edge portion of the shutter member is inserted into this is considered. Has been.

In this structure, the cutout portion cannot be made too narrow in width when formed by pressing or the like. On the other hand, the shutter member is formed thin to reduce the weight. With the side edge of the cutout inserted, a considerable gap is left between this side edge and the side of the cutout. Therefore, if the chip parts stored in the tape are of small size,
There is a concern that the chip component may jump out of the gap or enter the gap due to vibrations when it is fed out.

As a countermeasure against this problem, it is conceivable to increase the wall thickness of the shutter member to reduce the gap between the side edge portion and the cutout portion. The increase in the weight increases the sliding resistance, which is disadvantageous to the smoothness of the sliding operation.

In view of the above circumstances, the present invention has a structure in which a tape protecting member and a shutter member are provided in the component take-out portion, and the sliding operation of the shutter member is performed smoothly while cutting out the tape protecting member. An object of the present invention is to provide a tape feeder that can solve the problem of chip parts jumping out from the gap between the side portion and the side edge portion of the shutter member.

[0010]

In order to achieve the above object, the present invention provides a tape containing a large number of chip parts at regular intervals, a tape lead-out portion for leading out the tape, and a tape lead-out portion. And a feeding mechanism that moves the tape by a fixed amount as the chip component is removed from the tape by the component removing unit. , A tape protecting member having an opening for picking up a component at a predetermined position above the tape passing portion in the component taking-out portion, and at least a part of the opening is closed except when taking out the component to take out the component. A tape feeder provided with a shutter member that sometimes slides to a non-closed position, wherein the tape protection member has a fixed width continuous with the opening portion. A long cutout portion for guiding the shutter member is formed, and a side edge portion of the shutter member having a thickness smaller than the width of the cutout portion is inserted into the cutout portion and is provided outside the shutter member. The auxiliary member is provided with a spacer portion which is inserted into a gap between a side edge portion of the shutter member and a side edge of the cutout portion.

[0011]

According to the above construction, the shutter member at least partially closes the open portion at the component take-out portion except when the component is taken out, so that the chip component is prevented from jumping out from the open portion. At the time of taking out, the shutter member slides to the non-closed position, and the taking out of the parts is permitted.

In order to guide the shutter member, the side edge portion of the shutter member is inserted into the cutout portion of the tape protection member. At this portion, the side edge portion of the shutter member and the cutout portion are inserted. Since the spacer portion provided on the cover member is inserted into the gap formed between the side of the part and the side, the gap is closed, and the chip component is reliably prevented from popping out.

[0013]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows the entire structure of a tape feeder according to an embodiment of the present invention. In this figure, 1 is a tape feeder main body and a front feeder plate 2
And the reel plate 3 on the rear side. The reel plate 3 is provided with a reel support shaft 4 and a reel retainer 5 as a tape lead-out portion, and a reel 7 is rotatably attached to the reel support shaft 4 and a large number of chip parts are attached to the reel 7. A tape 8 containing the tape is wound around. The reel retainer 5 is capable of swinging around a swing shaft 6, and holds the tape 8 wound around the reel 7 from the outside.

Further, the feeder plate 2 is provided with a component take-out portion 11 at the front end thereof, and the reel 7
The tape 8 derived from the above is guided to the component take-out portion 11 via the guide roller 12 and the like. Further, a tape feeding mechanism 13, a cover tape take-up mechanism 14, a tape body discharge guide portion, and the like, which will be described in detail later, are provided on the feeder plate 2.

The feeder plate 2 is provided with a positioning pin 17 on a base 16 of a feeder installation portion of a mounting machine.
And it is designed to be attached by a mounting bracket 18. Further, the reel plate 3 is detachably coupled to the feeder plate 2, and when the reel 7 is replaced, only the reel plate 3 can be detached with the feeder plate 2 attached to the base 16. There is.

As a connecting structure of both plates 2 and 3, as shown in FIG. 2, hook-shaped cut-and-raised locking pieces 21 provided on the reel plate 3 are respectively provided at the upper two places. The cut groove 23 provided on the reel plate 3 is engaged with the locking shaft 24 provided on the feeder plate 2 at the lower portion while being hooked to the lower side of the cut groove 22 provided on the feeder plate 2. In particular, in the illustrated embodiment, each of the cut grooves 22, 23 is formed in a forward tilted shape with the upper side tilted forward, so that the reel plate 3 can be easily attached and detached by moving the reel plate 3 in the cut groove forming direction. However, the reel plate 3 is prevented from being accidentally separated from the feeder plate 2. That is, when a worker's body or another object comes into contact with the rear end of the reel plate 3 from below, the reel plate 3
2, a force in the direction indicated by an arrow in FIG. 2 acts on the front upper part thereof as a fulcrum, and in this case, in the conventional general plate coupling structure in which the respective cut grooves are formed in the vertical direction, the reel plate 3 However, if each of the cut grooves 22 and 23 is formed to be inclined forward as in the present embodiment, the reel plate 3 does not float even when the force in the arrow direction is applied, and the feeder plate is not lifted. The connection state with 2 is secured.

The tape 8 drawn out from the reel 7 attached to the reel plate 3 is composed of a tape body 8a and a cover tape 8b, as shown in FIGS. The tape main body 8a is provided with a large number of component storage portions 8c opened upward at regular intervals, and the chip components 9 are stored in the respective component storage portions 8c. A large number of engagement holes 8d are arranged at regular intervals. The cover tape 8b is
The tape main body 8a is bonded to the upper surface of the tape main body 8a so as to close each component storage portion 8c from above.

Then, the cover tape 8b is peeled off from the tape body 8a at the component take-out portion 11 and the chip component 9 is removed.
Is taken out, the chip component 9 is taken out by a suction head (not shown), and the tape feeding mechanism 13 feeds the tape by a fixed amount in accordance with the chip component taking-out operation. .

The feeding mechanism 13 includes a sprocket 26 located below the component take-out portion and a ratchet 27 connected to the sprocket 26, and the sprocket 28 is for engaging the tape 8 guided to the component take-out portion 11. It is engaged with the dowel hole 8d. Then, the lever 28 attached to the feeder plate 2 swings as the suction head descends and rises during component removal, and the swing is transmitted to the input side of the ratchet 27 via the links 29a and 29b. Accordingly, the sprocket 28 is intermittently rotated only in a fixed direction, and the tape 8 is intermittently fed out by a fixed amount.

The cover tape 8b separated from the tape body 8a by the component take-out section 11 is taken up by the cover tape take-up mechanism 14 and sent to a processing case (not shown).
By the pulling force of the take-up mechanism 14, the tape body 8
The cover tape 8b is peeled off from a. As shown in FIG. 3, the take-up mechanism 14 includes a pair of tension rollers 31 and 32 attached to the lower rear portion of the feeder plate 2. Then, the cover tape 8b pulled out from the component taking-out portion 11
However, at the intersection of the guide rollers 33 and 34 and the cover tape 8b and the tape 8, the cover tape 8b is rotated 90 °.
A guide plate 35 which is twisted to avoid interference with the tape 8;
Via the guide roller 36, both tension rollers 31,
Guided between 32.

One tension roller 31 of the cover tape take-up mechanism 14 is connected to a drive member 37 provided coaxially therewith via a one-way clutch that transmits only rotation in the forward direction. The swing of the lever 28 is transmitted to the drive member 37 via the feeding mechanism arrangement portion and the links 38, 39, 40. Further, one end of the tension applying spring 41 is connected to the drive member 37, and the other end of the spring 41 is connected to the tension adjusting member 42. Then, when the lever 28 is pushed down, the drive member 37 operates in the reverse direction (clockwise direction in the figure) in response to the operation of the links 38, 39, 40 in the direction of the broken line arrow in FIG. At the time of the return, the driving member 37 is rotated in the forward rotation direction (counterclockwise direction in the figure) by the restoring force of the spring 41 as indicated by the solid arrow, and only this rotation is the tension roller 3.
The cover tape 8b is intermittently taken over by being transmitted to Nos. 1 and 32.

The pulling force acting on the cover tape 8b from the tension rollers 31 and 32 is the tape body 8a.
The cover tape 8b can be peeled from the cover tape 8b, and the cover tape 8b needs to be adjusted appropriately so as not to break. However, in the illustrated embodiment, this pulling force can be easily adjusted. The tension adjusting member 42 is configured. That is, the tension adjusting member 42 has the screw portion 42a, and the feeder plate 2
It is screwed into a support portion 43 formed at the one end, one end side thereof is coupled to the spring 41, and a rotation operation portion 42b is provided at the other end side. Overhangs. Then, the operation unit 42
When b is rotated, the length of the spring 41 that gives the pulling force can be changed by the movement of the adjusting member 42 in response to this. Therefore, the pulling force can be adjusted steplessly, and the pulling force can be easily adjusted according to the usage situation and the like even when the tape feeder is assembled to the mounting machine.

The used tape main body 8a, which has passed through the component take-out section 11, is sent from the front of the feeder plate 2 through the lower portion to a processing case (not shown) or the like. In this case, a tube 45 through which the tape main body 8a passes is integrally provided in a portion extending from the front of the feeder plate 2 to a predetermined lower portion so that the used tape main body 8a is not caught during movement.

4 to 7 show the structure of the component take-out portion 11. In these drawings, the component take-out portion 11 includes a base portion 51 formed on the upper end portion of the feeder plate 2, a tape protecting member 54, a shutter member 60 and a cover member (auxiliary member) 65 provided above the base portion 51. ing. A tape guide groove 52 is formed in the base portion 51, and the tape 8 moves along the tape guide groove 52.

The tape protection member 54 has the guide groove 5
A mounting portion 55, which is located above the tape passage portion along 2 and faces the base portion 51, is attached to the feeder plate 2 continuously to the side portion of the member 54. The tape protection member 54 has an engagement portion 5 at one end thereof for determining the peeling start position of the cover tape 8b.
6 is formed, and an open part 57 for taking out parts is provided at a predetermined position in the middle part. Then, after the cover tape 8b is peeled off at the position of the engaging portion 56 and the storage portion 8c of the tape body 8a reaches the position of the opening portion 57, the storage portion 8c is opened upward, and the suction head is used. The chip component 9 can be taken out from above. Further, in this member 54, a cutout portion 5 for guiding an elongated shutter member having a constant width, which is continuous with the opening portion 57.
8 is formed. The tape protection member 54 is formed by pressing including the cutout portion 58.

The shutter member 60 is arranged on the upper surface side of the tape protection member 54, is slidable back and forth, and operates in conjunction with the swing of the lever 28 and the operation of the feeding mechanism 13, It is set to a closed position that closes at least a part of the open portion 57 except when parts are taken out, and slides to a non-closed position where the open parts 57 are fully opened when parts are taken out. An edge portion 61 bent downward is provided on one side of the shutter member 60, and the edge portion 61 is provided with the cutout portion 58.
Is engaged with. Further, the shutter member 60 is formed with an elongated hole 62 for inserting the connecting shaft 61 described later, and the convex portion 6 inserted into the elongated hole described later of the cover member 65.
3 is provided.

The cover member 65 is the shutter member 6.
0 is arranged on the upper surface side, is connected to the tape protection member 54 by a connecting pin 66, and is fixed, and the long hole 67 for inserting the convex portion 63 and guiding it in the front-back direction.
Is provided. On one side of the cover member 65, a spacer portion 68 composed of an edge bent downward.
However, it is provided integrally. Then, this spacer portion 68 is inserted into the gap between the side edge portion 61 of the shutter member 60 and the side edge of the cutout portion 58 to fill this gap.

According to the apparatus of this embodiment as described above, the tape 8 taken out from the reel 7 is guided to the component take-out section 11, and the cover tape 8 is provided at the starting end side of the component take-out section 11.
After b is peeled off, the tape body 8a is guided forward along the tape guide groove 52 below the tape protection member 54,
While being intermittently fed by the feeding mechanism 13, the component housing portion 8c of the tape body 8a is located at the position of the opening portion 57.
The chip component 9 housed in is picked up by the suction head. Until the taking-out operation is performed, the shutter member 60 in the closed position protects the chip component 9 from popping out of the opening 57, and when the component is taken out, the shutter member 60 moves to the non-closed position. The part 9 is allowed to slide out and the removal of the part 9 is allowed.

By the way, the shutter member 6 as described above is used.
The tape protection member 54 is provided with an elongated cutout portion 58, and the side edge portion 61 of the shutter member 60 is inserted into the elongated cutout portion 58, as a guide portion for smoothly performing the 0 slide. In this portion, the cutout portion 58 is formed by a press work that is simple and has high production efficiency. According to this press work, the cutout portion 5 is formed.
The width of 8 cannot be made too thin, while the shutter member 60
Is formed thin to reduce the weight, and the side edge portion 61 is formed.
Is considerably smaller than the width of the cutout 58. Therefore, as described above, the cutout portion 5
If only the side edge 61 of the shutter member 60 is inserted into the chip 8, a gap is left between the side edge 61 and the side of the cutout portion 58, and the chip component in the tape storage portion 8c. If the size of 9 is small, there is a concern that the chip component 9 may pop out of the gap or enter the gap due to vibrations at the time of feeding. On the other hand, when the spacer portion 68 provided on the cover member 65 is inserted into the gap, the gap is closed and the chip component 9 is reliably prevented from popping out. Moreover, the increase in the weight of the shutter member 60 and the accompanying increase in the sliding resistance do not occur.

[0031]

As described above, the tape feeder of the present invention has a tape protecting member having an opening for picking up a component at a predetermined position in the component picking-up portion, and a position for closing at least a part of the opening. A shutter member slidable in a non-closed position is provided, and a side edge portion of the shutter member is inserted into a cutout portion for a shutter member guide provided in the tape protection member, and the auxiliary member is provided with a shutter member. Since a spacer portion inserted in the gap between the side edge of the shutter member and the side of the cutout portion is provided, the shutter member is guided by the cutout portion to operate the shutter member smoothly, and The side edge portion is thin to reduce the weight, while the cutout portion has a relatively large width to facilitate processing, while the side edge portion of the shutter member is In which it is possible to reliably prevent the from the gap between the sides of the cutout portion pops out chip components.

[Brief description of drawings]

FIG. 1 is an overall view of a tape feeder according to an embodiment of the present invention.

FIG. 2 is an enlarged view showing a structure of a reel plate connecting portion with respect to a feeder plate.

FIG. 3 is an enlarged view showing a main part of a cover tape take-up mechanism.

FIG. 4 is an enlarged vertical cross-sectional view of a component take-out portion.

FIG. 5 is an enlarged plan view of a component take-out portion.

6 is a cross-sectional view taken along line VI-VI of FIG.

FIG. 7 is an enlarged plan view showing a state where a cover member of a component take-out portion is removed.

[Explanation of symbols]

 1 Tape Feeder Main Body 2 Feeder Plate 3 Reel Plate 7 Reel 8 Tape 11 Parts Extraction Part 54 Tape Protection Member 57 Opening Part 58 Cutout Part 60 Shutter Member 61 Side Edge 65 Cover Member 68 Spacer Part

Claims (1)

[Claims] 1. A tape containing a large number of chip components at regular intervals, a tape lead-out portion for leading out the tape, and a tape led out from the tape lead-out portion in a state in which the chip components can be taken out. The component take-out portion for holding and a feeding mechanism for moving the tape by a constant amount as the chip parts are taken out from the tape by the component take-out portion are provided in the component take-out portion, which is located above the tape passing portion. A tape provided with a tape protection member having an opening for taking out a component at a predetermined location, and a shutter member that closes at least a part of the opening except when the component is taken out and slides to a non-closed position when taking out the component. In the feeder, the tape protection member is provided with a cutout portion for guiding the elongated shutter member having a constant width, which is continuous with the opening portion, A side edge portion of the shutter member having a thickness smaller than the width of the cutout portion is inserted into the cutout portion, and a side edge portion of the shutter member is provided in an auxiliary member provided outside the shutter member. A tape feeder characterized in that a spacer portion to be inserted into a gap between the side of the cutout portion is provided.