JP7244371B2 - Carrier tape body, carrier tape and electronic component extraction method - Google Patents

Description

The present disclosure relates to carrier tapes.

In an automatic loading feeder, there is a method of taking out electronic components by cutting the top cover tape attached to the upper surface of the carrier tape body with a cutting blade and taking out the electronic components from the embossed portion of the carrier tape body where the top cover tape is cut. known (see, for example, Patent Document 1).

JP-A-2017-33968

However, in the conventional technology as described above, when cutting the top cover tape with a cutting blade, the cutting edge of the cutting blade also contacts the carrier tape body. was likely to wear out.

Therefore, in one aspect, the present disclosure aims to suppress the generation of debris on the carrier tape body and the wear of the cutting blade.

According to one aspect, a carrier tape body for an autoloading feeder in which a top cover tape attached to the upper surface is cut by a cutting blade,
an embossed portion covered with the top cover tape;
flange portions provided on both sides of the embossed portion in the width direction;
A carrier tape body is disclosed, which has a groove formed in a recessed manner on the same side as the embossed portion, continuous in the longitudinal direction, and into which the cutting edge of the cutting blade can be inserted.

In one aspect, according to the present disclosure, it is possible to suppress the generation of debris on the carrier tape body and the wear of the cutting blade.

1 is a perspective view of a carrier tape body according to Embodiment 1. FIG. FIG. 4 is a cross-sectional view showing a step of cutting the top cover tape of the carrier tape having the carrier tape main body according to Embodiment 1; 8 is a perspective view of a carrier tape body according to Embodiment 2. FIG. FIG. 11 is a perspective view of a carrier tape body according to Embodiment 3; FIG. 4 is a perspective view of a carrier tape main body according to a comparative example; FIG. 5 is a cross-sectional view showing a step of cutting a top cover tape of a carrier tape having a carrier tape main body according to a comparative example;

Hereinafter, each embodiment will be described in detail with reference to the accompanying drawings. In addition, in the accompanying drawings, for the sake of clarity, there are cases in which only a part of a plurality of parts having the same attribute are given reference numerals.

[Embodiment 1]
FIG. 1 is a perspective view of a carrier tape body 10 according to Embodiment 1. FIG. In FIG. 1, three mutually orthogonal directions, the X-direction, the Y-direction, and the Z-direction, are defined. In this case, the longitudinal direction of the carrier tape body 10 is indicated by the X direction, and the width direction is indicated by the Y direction. Hereinafter, the Z direction is defined as the vertical direction, the positive side is defined as the upper side, and the negative side is defined as the lower side.

The carrier tape main body 10 is formed by processing a tape-shaped base material having a thickness of 0.2 mm to 0.6 mm. Tape-shaped substrates are made of, for example, synthetic resins such as polyvinyl chloride, polystyrene, amorphous polyethylene terephthalate, polycarbonate, polypropylene, or the like, carbon kneaded into these resins to impart conductivity, or conductive coatings applied to the surface. made up of things. The width of the carrier tape body 10 is generally about 8 mm to 24 mm.

The carrier tape body 10 is provided with embossed portions (pocket portions) 11 for storing electronic components at predetermined intervals in the longitudinal direction. The embossed portion 11 corresponds to the shape and size of the electronic component to be housed, and is rectangular in top view in this embodiment. In addition, the top view means the case of viewing in a direction perpendicular to the XY plane. In addition, the shape of the embossed portion 11 when viewed from above may be an elliptical shape, a circular shape, or the like.

The embossed portion 11 is a non-penetrating concave portion and has a bottom portion. The depth of the embossed portion 11 is arbitrary, but is determined according to the height of the electronic component to be stored. That is, the depth of the embossed portion 11 may be slightly larger than the height of the electronic component to be stored.

The embossed portions 11 are provided at regular intervals in the longitudinal direction at a predetermined pitch. Although the predetermined pitch is arbitrary, it may be, for example, about 1 mm to 8 mm.

The carrier tape body 10 includes flange portions 12 and 13 provided on both sides of the embossed portion 11 in the width direction. One flange portion 12 of the carrier tape body 10 has a plurality of feed holes (sprocket holes) 14 that are used for positioning in an auto loading feeder or the like, and are drilled at predetermined intervals in the longitudinal direction. The shape and spacing of the feed holes 14 are preferably formed in accordance with a feed mechanism such as a sprocket. Incidentally, the diameter of the feed hole 14 is about 0.8 mm to 1.5 mm.

FIG. 2 is a cross-sectional view showing a step of cutting the top cover tape 20 of the carrier tape 1 including the carrier tape main body 10 according to the first embodiment.

As shown in FIG. 2, the carrier tape 1 includes a carrier tape body 10 and a top cover tape 20. As shown in FIG. The top cover tape 20 is attached to the upper surface of the carrier tape body 10 . The top cover tape 20 is attached to the carrier tape main body 10 after placing the electronic component D in the embossed portion 11 (covered on the carrier tape main body 10 so as to cover the embossed portion 11). The carrier tape body 10 to which the top cover tape 20 is attached is called a "carrier tape".

The top cover tape 20 is, for example, a tape-shaped base material formed using a synthetic resin such as polyethylene, polystyrene, polyethylene terephthalate (PET), or polycarbonate. It should be noted that these synthetic resins may be kneaded with carbon to impart conductivity, may be subjected to a conductive coating on the surface of the tape-shaped base material, or may be used to impart antistatic properties. .

The top cover tape 20 has an adhesive layer formed of an adhesive or pressure-sensitive adhesive on the joint portion 21 (the width of the joint portion 21 is indicated in FIG. 2) on the surface of the carrier tape body 10 side. Note that the heat-sealing adhesive layer may be formed on the joint portion 21 as well as on a portion other than the joint portion 21 . However, the adhesive layer is formed only on one side of the top cover tape 20 (the carrier tape side surface). As the adhesive, acrylic resin-based, natural rubber-based, urethane-based, epoxy-based, polyvinyl alcohol-based, and the like can be used. The joints 21 are separated by a predetermined distance in the Y direction and extend parallel to the X direction. Although the joints 21 are continuous in the X direction, they may be set discontinuously in the X direction.

Basically, the top cover tape 20 is continuously sealed to the carrier tape body 10 along the X direction at the positions on both sides of the embossed portion 11 in the Y direction by the above-described joining portions 21 .

As shown in FIG. 2, in an auto-loading feeder, as one method of taking out the electronic components D from the carrier tape 1, the carrier tape 1 is stretched along the longitudinal direction with the electronic components D in the embossed portions 11. The top cover tape 20 attached to the upper surface of the carrier tape body 10 is cut by the cutting blade 30 of the machine, and the carrier tape body 10 with the top cover tape 20 cut off is supplied to the machine while being unwound. A method of taking out the electronic component D from the embossed portion 11 is used.

However, in the above electronic component extraction method, when the top cover tape 20 is cut by the cutting blade 30, the cutting edge of the cutting blade 30 comes into contact with the carrier tape body 10, resulting in scraps of the carrier tape body 10. In addition, there is a risk that the cutting blade 30 will be worn.

Therefore, the carrier tape body 10 of the present embodiment has grooves 15 which are formed in a recessed manner on the same side as the embossed portions 11 and which are continuous in the longitudinal direction and into which the cutting edges of the cutting blades 30 can be inserted. According to the carrier tape body 10, the top cover tape 20 can be cut by the cutting blade 30 in such a manner that the cutting edge of the cutting blade 30 is inserted into the groove 15 of the carrier tape body 10. Excessive contact with the carrier tape body 10 can be avoided, and as a result, generation of shavings on the carrier tape body 10 and abrasion of the cutting blade 30 can be suppressed. In addition, it is possible to prevent the carrier tape body 10 from becoming violent due to the contact resistance with the cutting blade 30 and the cutting position of the top cover tape 20 from being shifted.

In the carrier tape main body 10 of this embodiment, the groove portion 15 is provided in the flange portion 12 . More specifically, a groove portion 15 is provided between the feed hole 14 and the embossed portion 11 in the width direction. According to such a carrier tape body 10, the top cover tape 20 can be cut at a position close to the positioning feed hole 14, so the cutting position accuracy in the width direction of the top cover tape 20 can be improved.

Also, the sealing position (joint portion 21) of the top cover tape 20 with respect to the carrier tape body 10 is set outside the groove portion 15 in the width direction. According to such a carrier tape body 10, by cutting the top cover tape 20 at the position of the groove portion 15, the top cover tape 20 is peeled off from the upper surface of the carrier tape body 10, and the electronic component D in the embossed portion 11 is removed. can be taken out.

[Embodiment 2]
Next, Embodiment 2 will be described. In the present embodiment, constituent elements that may be the same as those of the above-described first embodiment may be given the same reference numerals and descriptions thereof may be omitted.

FIG. 3 is a perspective view showing a carrier tape body 10A according to Embodiment 2. FIG.

A carrier tape body 10A of the present embodiment differs from the carrier tape body 10 of the first embodiment described above in that a groove portion 15A is provided in the flange portion 13 on the other side of the embossed portion 11 in the width direction. In the case of the carrier tape main body 10A of the present embodiment as well, by forming a similar carrier tape using the above-described top cover tape 20, the same effect as in the above-described first embodiment can be obtained.

[Embodiment 3]
Next, Embodiment 3 will be described. In the present embodiment, constituent elements that may be the same as those of the above-described first embodiment may be given the same reference numerals and descriptions thereof may be omitted.

FIG. 4 is a perspective view showing a carrier tape body 10B according to Embodiment 3. FIG.

In contrast to the carrier tape body 10 according to the first embodiment, the carrier tape body 10B of the present embodiment has grooves 15B that communicate with the embossed portions 11 between the plurality of embossed portions 11 arranged along the longitudinal direction. The difference is that they are formed. In the case of the carrier tape main body 10B of this embodiment as well, by forming a similar carrier tape using the above-described top cover tape 20, the same effects as those of the above-described first embodiment can be obtained.

Examples of carrier tape bodies 10, 10A, and 10B according to the present disclosure will be described below together with comparative examples.

The inventor of the present application conducted the following comparative tests.

Groove portions 15, 15A, and 15B continuous in the longitudinal direction and into which the cutting edge of the cutting blade 30 can be inserted are formed in the carrier tape bodies 10, 10A, and 10B. The grooves 15, 15A, and 15B were V-shaped with a groove opening width of 0.3 mm and a groove depth of 0.3 mm. In the carrier tape body 10 of Example 1, a groove portion 15 was provided between the flange portion 12 on one side of the embossed portion 11 and between the feed hole 14 and the embossed portion 11 in the width direction. Further, in the carrier tape main body 10A of Example 2, the flange portion 13 on the other side of the embossed portion 11 is provided with the groove portion 15A. Further, in the carrier tape body 10B of Example 3, the groove portions 15B were provided between the plurality of embossed portions 11 arranged along the longitudinal direction so as to communicate with the embossed portions 11 . The cutting blade 30 was a razor blade with a thickness of 0.1 mm and a blade depth of 0.2 mm.

After the top cover tape 20 is adhered to the upper surfaces of the carrier tape bodies 10, 10A, and 10B, the top cover tape is cut with a cutting blade 30 aligned with the grooves 15, 15A, and 15B while feeding the carrier tape bodies 10, 10A, and 10B. 20 was cut 100m. After that, the states of the carrier tape bodies 10, 10A and 10B, the top cover tape 20 and the cutting blade 30 were visually confirmed.

As a comparative example, as shown in FIG. 5, a carrier tape body 10C having no grooves 15, 15A, and 15B was prepared. As shown in FIG. 6, after the top cover tape 20 is adhered to the upper surface of the carrier tape body 10C, the top cover is cut with a cutting blade 30 installed between the feed hole 14 and the embossed portion 11 while feeding the carrier tape body 10C. 100 m of the tape 20 was cut. After that, the states of the carrier tape main body 10C, the top cover tape 20 and the cutting blade 30 were visually confirmed.

When the top cover tape 20 was cut, in Examples 1, 2, and 3, the cutting position was stable, and no abnormality was found in the appearance of the carrier tape bodies 10, 10A, and 10B and the top cover tape 20. Also, the cutting edge of the cutting blade 30 was not worn.

On the other hand, in the comparative example, the cutting position was unstable, and the carrier tape main body 10C was cut due to contact with the cutting blade 30 . Moreover, the residue of the carrier tape main body 10C adhered to the carrier tape main body 10C and the top cover tape 20 . Also, the cutting edge of the cutting blade 30 was worn.

Although each embodiment has been described in detail above, it is not limited to a specific embodiment, and various modifications and changes are possible within the scope described in the claims. It is also possible to combine all or more of the constituent elements of the above-described embodiments.

1 Carrier tape 10, 10A, 10B Carrier tape body 11 Embossed part 12 Flange part 13 Flange part 14 Feed hole 15, 15A, 15B Groove part 20 Top cover tape 21 Joint part 30 Cutting blade

Claims (6)

A carrier tape body for an auto-loading feeder in which a top cover tape attached to the upper surface is cut by a cutting blade,
an embossed portion covered with the top cover tape;
flange portions provided on both sides of the embossed portion in the width direction;
a groove portion formed in a recessed manner on the same side as the embossed portion, continuous in the longitudinal direction, and into which the cutting edge of the cutting blade can be inserted ;
The carrier tape main body, wherein the groove portion is provided in the flange portion . Having a feed hole in the flange,
2. The carrier tape body according to claim 1 , wherein said groove portion is provided between said feed hole and said embossed portion in the width direction. Having a feed hole on one side with respect to the embossed portion in the width direction,
2. The carrier tape body according to claim 1 , wherein said groove is provided on the other side of said embossed portion in the width direction. 4. The carrier tape body according to any one of claims 1 to 3 , wherein the sealing position of said top cover tape can be set outside said groove in the width direction. A carrier tape body according to any one of claims 1 to 4 ;
and a top cover tape attached to the carrier tape body. The carrier tape according to claim 5 is supplied to a machine while being unwound along the longitudinal direction with the electronic parts contained in the embossed portions,
cutting the top cover tape with the cutting blade in such a manner that the cutting edge of the cutting blade of the machine is inserted into the groove of the carrier tape body;
A method for taking out an electronic component, comprising taking out the electronic component from the embossed portion of the carrier tape body in a state where the top cover tape is cut.

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