JP7069482B2 - How to connect splicing tape and transport tape - Google Patents

Description

The present invention relates to a splicing tape used for connecting transport tapes such as carrier tapes in which electronic components for surface mounting are enclosed, and a method for connecting the transport tapes.

Conventionally, in order to continuously supply electronic components for surface mounting to an electronic component mounting machine, a carrier tape in which electronic components are enclosed has been used.
As shown in FIG. 9, the carrier tape 100 has an electronic component encapsulation recess 116 in which the electronic component 114 is enclosed, and covers the electronic component encapsulation recess 116 so that the electronic component 114 does not spill during transportation. Top tape 118 is attached to. (Hereinafter, the surface to which the top tape 118 of the carrier tape 100 is attached is referred to as "front surface", and the surface to which the top tape 118 is not attached is referred to as "back surface".)

Further, the carrier tape 100 is provided with sprocket holes 120 at regular intervals, and the carrier tape 100 is conveyed to the electronic component mounting machine at a constant speed by the sprocket of the tape feeder.

In order to continuously supply such a carrier tape 100 to an electronic component mounting machine without stopping, the ends of the carrier tape 100 are mutually connected by a splicing tape 110 using a connection jig such as a hand splicer or an auto splicer. A work called splicing is performed to connect to.

For splicing, for example, as shown in FIGS. 10 and 11, the tip of each carrier tape 100 is cut with a cutter or the like so that the distances between the sprocket holes 120 of the two carrier tapes 100 match. This is done by sticking the splicing tape 110 so that at least the top tape 118 is connected with the cut ends of the carrier tape 100 abutted against each other. (Patent Document 1, Patent Document 2, Patent Document 3, etc.)

Since such a splicing operation is complicated for an unfamiliar worker, for example, in Patent Document 4 (Japanese Unexamined Patent Publication No. 2004-161355), as shown in FIG. 12, one of the carrier tapes 100 is used. A method has also been proposed in which a notch portion 122 is provided at the end portion 100a and a cutout portion 124 is provided at the other end portion 100b so that the carrier tapes 100 can be spliced together without using a connecting jig.

However, if the splicing tape 110 is simply attached so that the top tape 118 is connected, the carrier tapes may be disconnected from each other when the carrier tape 100 is twisted, and the tape feeder may be clogged. ..

Therefore, in order to prevent the connection between the carrier tapes from being displaced, as shown in FIG. 13, a splicing tape 110 having a width substantially the same as the width of the carrier tape 100 is also attached.

However, when the splicing tape 110 is attached so as to close the sprocket hole 120 in this way, the splicing tape 110 is pushed up when the sprocket boss is inserted into the sprocket hole 120, and the splicing tape 110 and the top tape 118 are pressed. It sometimes came off.

Further, when the splicing tape 110 is pushed up by the sprocket boss, the sprocket hole 120 and the boss do not engage with each other, which may cause a transfer failure (idle) of the carrier tape 100.

Further, the vibration from the sprocket may be transmitted to the carrier tape 100, and even the electronic components enclosed in the carrier tape 100 may vibrate. When the electronic component vibrates in this way, the electronic component mounting machine causes poor adsorption of the electronic component, which leads to a decrease in productivity.

Therefore, in Patent Document 5, it is proposed to provide a slit in the adhesive tape (splicing tape) to be attached so as to close the sprocket hole. By providing the slit in this way, when the sprocket boss is inserted into the sprocket hole, the boss can protrude upward through the slit, so that the tape feeding is not hindered.

Japanese Unexamined Patent Publication No. 2010-87390 Japanese Unexamined Patent Publication No. 2005-244056 Japanese Unexamined Patent Publication No. 6-332146 Japanese Unexamined Patent Publication No. 2004-161355 Japanese Unexamined Patent Publication No. 2005-123302

However, in the slit as in Patent Document 5, since the force from the boss of the sprocket is applied to the splicing tape, the problem that the vibration is transmitted to the carrier tape cannot be solved.

In addition, there is a concern that a force will be applied to the splicing tape and the slit will tear in the longitudinal direction. In some cases, the splicing tape attached to the sprocket hole will come off, leading to a decrease in the connection strength of the carrier tape. It ends up.

On the other hand, in order to solve such a problem, if the opening of the slit is widened in the width direction, the sprocket hole is detected by the sprocket hole detection by the optical sensor as disclosed in Patent Document 5, and the sprocket hole is detected. It will not be detected as a part.

In the present invention, in view of such a situation, the carrier tapes can be firmly connected to each other, and even when the sprocket boss is inserted into the sprocket hole, the influence of the boss pushing up the splicing tape is suppressed, and further, the optical It is an object of the present invention to provide a method for connecting a splicing tape and a transport tape capable of detecting a splice portion by an optical sensor.

The present invention has been invented in order to solve the above-mentioned problems in the prior art, and the splicing tape of the present invention is used.
A transport tape having an electronic component encapsulation portion having a plurality of electronic component encapsulation recesses for encapsulating electronic components and a sprocket hole portion having a plurality of sprocket holes. In the encapsulation portion, the electronic component encapsulation portion cutting portion provided between the electronic component encapsulation recesses in the lateral direction of the transport tape and the sprocket hole portion provided between the sprocket holes in the lateral direction of the transport tape. The transport tape is formed at the boundary portion cut portion provided in the longitudinal direction of the transport tape at the boundary portion between the electronic component encapsulation portion and the sprocket hole portion, and the boundary portion cut portion. The transport tapes provided along the longitudinal direction of the above and having a connecting fitting portion formed of a plurality of dovetail grooves or dovetails into which the transport tape cannot be fitted and removed in the longitudinal direction and the lateral direction are connected to each other. A splicing tape that is attached over a plurality of transport tapes with the fitting portions connected to each other .
The splicing tape includes an electronic component encapsulation portion sticking portion to be attached to the electronic component encapsulation portion of the transport tape, and a sprocket hole attachment portion to be attached to the sprocket hole portion of the transport tape. A sprocket hole reinforcing portion to be attached to the sprocket hole portion of the transport tape is provided.
A plurality of notches provided at the same intervals as the plurality of sprocket holes are provided.
The notch is a convex notch that is convex to the upstream side in the traveling direction of the transport tape.
It is characterized in that it is attached so as to cover the cut portion of the electronic component encapsulation portion, the cut portion of the sprocket hole portion, and the cut portion of the boundary portion .

Further, the splicing tape has an electronic component encapsulation portion sticking portion to be attached to the electronic component encapsulation portion of the transport tape and a sprocket hole attachment portion to be attached to the sprocket hole portion of the transport tape. Can be prepared.

Further, it is preferable that the splicing tape further includes a sprocket hole reinforcing portion to be attached to the sprocket hole.

Further, the method for connecting the transport tape of the present invention is a transport tape having an electronic component encapsulation portion in which a plurality of electronic component encapsulation recesses in which electronic components are encapsulated and a sprocket hole portion in which a plurality of sprocket holes are present. At the end of the transport tape, in the electronic component encapsulation portion, the electronic component encapsulation portion cutting portion provided between the electronic component encapsulation recesses in the lateral direction of the transport tape, and in the sprocket hole portion, the sprocket. A sprocket hole cutting portion provided between the holes in the lateral direction of the transport tape, and a boundary cutting portion provided in the longitudinal direction of the transport tape at the boundary between the electronic component encapsulation portion and the sprocket hole portion. A connection fitting made of a plurality of dovetail grooves or dovetails, which are provided at the boundary cut portion along the longitudinal direction of the conveying tape and cannot be fitted and removed in the longitudinal direction and the lateral direction. It is a method of connecting transport tapes that connects transport tapes with joints .
A splicing tape provided with a plurality of notches provided at the same intervals as the plurality of sprocket holes, and the splicing tape having a convex shape that is convex toward the upstream side in the traveling direction of the conveying tape. , The sprocket hole of the transport tape and the notch of the splicing tape are aligned with each other over a plurality of transport tapes , and the electronic component encapsulation portion cutting portion, the sprocket hole portion cutting portion, and the boundary portion are cut. It is characterized in that it is attached to at least one side of the transport tape so as to cover the portion .

When the transport tape has a connecting fitting portion at the end of the transport tape, the transport tape has a fitting portion for connection.
The splicing tape can be attached over the plurality of transport tapes in a state where the connection fitting portions of the plurality of transport tapes are fitted and connected to each other.

On the other hand, when the transport tape does not have a connecting fitting portion at the end of the transport tape,
A fitting part for connection is formed at each end of the plurality of transport tapes, and at the same time, a fitting part for connection is formed.
The splicing tape can be attached over the plurality of transport tapes in a state where the connection fitting portions are fitted and connected to each other.

According to the present invention, since a plurality of notches provided at the same intervals as the sprocket holes of the transport tape are provided, the influence of pushing up by the sprocket boss can be suppressed, and the splicing tape and the top tape are peeled off. There is no such thing.

FIG. 1 is a plan view of the splicing tape in this embodiment. FIG. 2 is a right side view of the splicing tape of FIG. FIG. 3 is an end view taken along the line AA'of the splicing tape of FIG. FIG. 4 is a schematic configuration diagram for explaining a method of connecting carrier tapes in this embodiment. FIG. 5 is a schematic configuration diagram for explaining a state in which the carrier tape of FIG. 4 is fitted and connected. FIG. 6 is a schematic diagram for explaining a state in which the splicing tape of FIG. 1 is attached to the carrier tape of FIG. FIG. 7 is a plan view of the splicing tape in another embodiment. FIG. 8 is a rear view of the carrier tape connected by the splicing tape of FIG. 7. FIG. 9 is a schematic configuration diagram for explaining a conventional carrier tape. FIG. 10 is a schematic configuration diagram for explaining a conventional carrier tape connection method. FIG. 11 is a schematic configuration diagram for explaining a state in which conventional carrier tapes are connected to each other. FIG. 12 is a schematic configuration diagram for explaining another connection method of the conventional carrier tape. FIG. 13 is a schematic configuration diagram for explaining still another connection method of the conventional carrier tape.

Hereinafter, embodiments (examples) of the present invention will be described in more detail with reference to the drawings.
1 is a plan view of the splicing tape according to one aspect of the present invention, FIG. 2 is a right side view of the splicing tape of FIG. 1, and FIG. 3 is an end view of the splicing tape of FIG.

As shown in FIGS. 1 to 3, the splicing tape 10 of this embodiment is formed in a state of being sandwiched between the support sheets 24 and 26.
Further, as shown in FIG. 1, the splicing tape 10 of the present embodiment has an electronic component encapsulation portion sticking portion 12 to be attached to the electronic component encapsulation portion 46 of the carrier tape 30 described later, and a sprocket hole portion of the carrier tape. It is provided with a sprocket hole attachment portion 14 to be attached to the 48.

The sprocket hole attachment portion 14 is provided with a plurality of notches 16 provided at the same intervals as the sprocket holes 120 of the carrier tape 30 described later.
As shown in FIG. 1, the cut portion 16 is preferably a notch having a convex shape in a predetermined direction. More preferably, as shown in FIG. 6 described later, the notch may have a convex shape in the direction opposite to the transport direction X of the carrier tape 30. By forming the notch portion 16 having such a shape, even when the sprocket boss is inserted into the sprocket hole 120 of the carrier tape 30, only the notch portion 16 of the splicing tape 10 is pushed up, and the entire splicing tape 10 or the top is pushed up. Since the tape 118 is not affected, the splicing tape 10 and the top tape 118 are not peeled off, and the carrier tape 30 does not vibrate.

The cut portion 16 is not particularly limited as long as the boss of the sprocket can penetrate in the thickness direction of the splicing tape 10 and a load is not generated from the boss to the splicing tape 10. For example, a notch having a convex shape in the width direction of the splicing tape 10 may be used. Further, the notch may be one that is continuously cut into a constant shape, or may be a perforation that is an intermittent notch.

Further, it is preferable that the splicing tape 10 is provided with a positioning hole 18. By providing such a positioning hole 18, for example, when performing a splicing operation using a splicing jig having a positioning pin, the splicing tape 10 is attached so as to insert the positioning pin into the positioning hole 18. As a result, the sprocket holes of the carrier tape and the plurality of cut portions 16 of the splicing tape 10 can be attached without being displaced.

Further, the splicing tape 10 may be provided with a gap portion 20 for dividing the electronic component encapsulation portion attaching portion 12 and the sprocket hole portion attaching portion 14. By providing the gap portion 20 in this way, when the splicing tape 10 is attached to the carrier tape 30, the electronic component encapsulation portion attachment portion 12 and the sprocket hole attachment portion 14 can be completely separated. Even when the sprocket boss is inserted into the sprocket hole 120 of the carrier tape 30, it does not affect the electronic component encapsulation portion sticking portion 12, and the electronic component encapsulation portion sticking portion 12 and the top tape of the splicing tape 10 are not affected. 118 will not come off.

Further, the support sheets 24 and 26 in this embodiment are not particularly limited as long as they are sheets that can be easily peeled off from the splicing tape 10, and for example, a release paper or a release film can be used.

The support sheet 24 is preferably provided with a positioning hole 25 at the same position as the splicing tape 10. By providing the positioning hole 25 in this way, the splicing tape 10 is attached with the positioning pin inserted into the positioning hole 18, and then the support sheet 24 is peeled off from the splicing tape 10 to the carrier tape 30. The splicing tape 10 can be easily attached without any deviation.

Hereinafter, a method of connecting the carrier tape 30 which is a transport tape by using the splicing tape 10 of this embodiment will be described.
FIG. 4 is a schematic configuration diagram for explaining a method of connecting carrier tapes in this embodiment, and FIG. 5 is a schematic configuration diagram for explaining a state in which the carrier tapes of FIG. 4 are fitted and connected.

As shown in FIG. 4, in this embodiment, the carrier tape 30 has a connecting fitting portion 32 at each end thereof. Since the carrier tape 30 in this embodiment is basically the same as the conventional carrier tape shown in FIG. 9, the same components are designated by the same reference numerals and detailed description thereof will be given. Is omitted.

Here, the connecting fitting portion 32 is not particularly limited as long as it has a shape capable of fitting and connecting to each other, and may have a conventionally known shape, for example, as shown in FIG. not.

In this embodiment, as shown in FIG. 4, a plurality of dovetail molds 34 are provided in the longitudinal direction of the first carrier tape 30a, and a recess 36 is provided in the lateral direction of the sprocket hole portion 48. On the other hand, in the longitudinal direction of the second carrier tape 30b, there are a plurality of dovetail grooves 40 having a shape that fits with the dovetail mold 34 of the first carrier tape 30a, and the first is in the lateral direction of the sprocket hole portion 48. It has a convex portion 42 having a shape that fits with the concave portion 36 of the carrier tape 30a.

Further, the ends of the electronic component encapsulation portion 46 of the first carrier tape 30a and the second carrier tape 30b have a concavo-convex shape that fits each other.

The dovetail groove 40 and the dovetail mold 34 can be fitted and removed only in the thickness direction of the carrier tape 30, and cannot be fitted and removed in the longitudinal direction and the lateral direction of the carrier tape 30.

Such a connecting fitting portion 32 may be provided on the carrier tape 30 in advance, or during splicing work, for example, by using a cutting means having a shape corresponding to the connecting fitting portion 32, the connecting fitting portion 32 may be provided. The end portion of the carrier tape 30 may be cut to form a connecting fitting portion 32 at the end portion of the carrier tape 30.

The number of dovetail grooves 40 and dovetail molds 34 provided in the connecting fitting portion 32 can be appropriately changed in consideration of the type, thickness, strength, and the like of the carrier tape 30.
Further, it is not necessary to have the uneven portions 36, 40, 42 provided in the lateral direction of the sprocket hole portion 48, and the dovetail groove type may be used instead of the uneven portion.

Then, the connection fitting portions 32 thus formed are fitted and connected to each other as shown in FIG. In this state, as shown in FIG. 6, the splicing tape extends over the first carrier tape 30a and the second carrier tape 30b so that the sprocket hole 120 of the carrier tape 30 and the positioning hole 18 of the splicing tape 10 coincide with each other. Stick 10 on.

By attaching the splicing tape 10 over the plurality of carrier tapes 30a and 30b in this way, the splicing of the carrier tape 30 is completed.

7 is a plan view of the splicing tape in another embodiment, and FIG. 8 is a rear view of the carrier tape connected by the splicing tape of FIG. 7.
Since the splicing tape 10 of this embodiment basically has the same configuration as the splicing tape 10 shown in FIGS. 1 to 6, the same components are designated by the same reference numerals and detailed description thereof will be given. Omit.

The splicing tape 10 of this embodiment further includes a sprocket hole reinforcing portion 22 attached to the sprocket hole portion 48 of the carrier tape 30.
As shown in FIG. 8, the sprocket hole reinforcing portion 22 is attached to the surface of the carrier tape 30 opposite to the surface to which the sprocket hole attaching portion 14 of the splicing tape 10 is attached. The fitting connection portion of the carrier tape 30 in the sprocket hole portion 48 can be reinforced, and the connection strength of the carrier tape 30 can be increased.

The sprocket hole reinforcing portion 22 is provided with through holes 23 provided at the same intervals as the sprocket holes 120 of the carrier tape 30.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to this. For example, in the above embodiment, the carrier tapes provided with the fitting fitting portions for connection are fitted and connected to each other. Although the splicing tape of the present invention is attached, the splicing tape of the present invention may be used for connecting carrier tapes having no fitting fitting portion for connection as shown in FIG. , Various changes can be made without departing from the object of the present invention.

10 Splicing tape 12 Electronic component encapsulation part Affixing part 14 Sprocket hole part Affixing part 16 Notch part 18 Positioning hole 20 Gap part 22 Sprocket hole part Reinforcing part 23 Through hole 24 Support sheet 25 Positioning hole 26 Support sheet 30 Carrier tape 30a No. 1 Carrier tape 30b 2nd carrier tape 32 Fitting part for connection 34 Dovetail type 36 Concave part 40 Dovetail groove 42 Convex part 46 Electronic component encapsulation part 48 Sprocket hole part 100 Carrier tape 100a End part 100b End part 110 Splicing tape 114 Electronic component 116 Electronic component encapsulation recess 118 Top tape 120 Sprocket hole 122 Notch 124 Cutout

Claims (2)

A transport tape having an electronic component encapsulation portion having a plurality of electronic component encapsulation recesses for encapsulating electronic components and a sprocket hole portion having a plurality of sprocket holes. In the encapsulation portion, the electronic component encapsulation portion cutting portion provided between the electronic component encapsulation recesses in the lateral direction of the transport tape and the sprocket hole portion provided between the sprocket holes in the lateral direction of the transport tape. The transport tape is formed at the boundary portion cut portion provided in the longitudinal direction of the transport tape at the boundary portion between the electronic component encapsulation portion and the sprocket hole portion, and the boundary portion cut portion. The transport tapes having a connecting fitting portion composed of a plurality of dovetail grooves or dovetails, which are provided along the longitudinal direction of the above and cannot be fitted and detached in the longitudinal direction and the lateral direction, are connected to each other. It is a splicing tape that is attached over a plurality of transport tapes in a state where the fitting parts are fitted and connected to each other .
The splicing tape includes an electronic component encapsulation portion sticking portion to be attached to the electronic component encapsulation portion of the transport tape, and a sprocket hole attachment portion to be attached to the sprocket hole portion of the transport tape. A sprocket hole reinforcing portion to be attached to the sprocket hole portion of the transport tape is provided.
A plurality of notches provided at the same intervals as the plurality of sprocket holes are provided.
The notch is a convex notch that is convex to the upstream side in the traveling direction of the transport tape.
The sprocket hole of the transport tape and the notch of the splicing tape are aligned with each other over a plurality of transport tapes, and the electronic component encapsulation portion cutting portion, the sprocket hole portion cutting portion, and the boundary portion cutting portion. A splicing tape characterized by being affixed so as to cover the . A transport tape having an electronic component encapsulation portion having a plurality of electronic component encapsulation recesses for encapsulating electronic components and a sprocket hole portion having a plurality of sprocket holes. In the encapsulation portion, the electronic component encapsulation portion cutting portion provided between the electronic component encapsulation recesses in the lateral direction of the transport tape and the sprocket hole portion provided between the sprocket holes in the lateral direction of the transport tape. The transport tape is formed at the boundary portion cut portion provided in the longitudinal direction of the transport tape at the boundary portion between the electronic component encapsulation portion and the sprocket hole portion, and the boundary portion cut portion. A transport tape having a connecting fitting portion composed of a plurality of dovetail grooves or dovetails, which are provided along the longitudinal direction of the above and cannot be fitted and removed in the longitudinal direction and the lateral direction, and the conveyor tapes are connected to each other. It ’s a tape connection method.
A splicing tape provided with a plurality of notches provided at the same intervals as the plurality of sprocket holes, and the splicing tape having a convex shape that is convex toward the upstream side in the traveling direction of the conveying tape. , The sprocket hole of the transport tape and the notch of the splicing tape are aligned with each other over a plurality of transport tapes , and the electronic component encapsulation portion cutting portion, the sprocket hole portion cutting portion, and the boundary portion are cut. A method for connecting a transport tape, which comprises attaching the transport tape to at least one side of the transport tape so as to cover the portion .

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