JPH09255079A - Carrier tape for taping package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To load a part without being damaged by suppressing bending deformation of a storing part. SOLUTION: A taping package 1 is formed by loading an electronic part 2 in a recessed storing part 6 of a carrier tape 4 and thermowelding a top cover tape 5 on the carrier tape 4 so as to cover the storing part 6 and is stored by winding it on a storing reel while it is formed. Circular hole parts 9 for absorbing bending stress are formed by a definite interval in the width direction of the carrier tape 4 on a connecting part 8 for connecting the storing parts 6 of the carrier tape 4 and bending rigidity of the connecting part 8 is decreased thereby. When the taping package 1 is wound on the storing reel and is stored and carried, bending moment acts on the carrier tape 4 but the connecting part 8 is easily curved or bent at the site where the hole parts 9 for absorbing bending stress are formed to suppress bending deformation of the storing part 6. It is possible thereby to wind, store and carry the taping packaging without damaging the leads 3 of the electronic part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a taping package used for mounting electronic equipment, small precision equipment and the like,
More particularly, it relates to an improvement in a carrier tape having a concave storage part for loading components.

[0002]

2. Description of the Related Art Automatic mounting machines are widely used in mounting technology for electronic devices, small precision devices, etc., and taping packages are heavily used to smoothly supply components to the automatic mounting machines. Taping packages are IC, LSI,
A tape-shaped package that is loaded with electronic parts such as resistors and mechanical parts such as motors, fans, and links at regular intervals.
A carrier tape for loading the parts and a top cover tape for preventing the parts from falling off are provided. The carrier tape is made of a tape-shaped long resin material, and concave storage portions for loading parts at regular intervals in the longitudinal direction of the long resin material are formed by embossing. Feed holes are formed at regular intervals near at least one end parallel to the longitudinal direction. The top cover tape is made of a tape-shaped long resin material, and has both ends parallel to the longitudinal direction fixed to the carrier tape by heat welding so that the storage section is closed after the carrier tape is loaded with components.

A taping package is formed by loading parts into a storage part of a carrier tape and heat-sealing a top cover tape to the carrier tape so as to cover the storage part. The taping package is wound around a storage reel or the like to form a roll. It is stored. When using, attach the storage reel etc. to the automatic mounting machine,
The taping wrapping body is pulled out by the supply sprocket and the parts are sequentially fed to the take-out position. For example, when mounting an electronic device, an IC,
Electronic components such as an LSI and a resistor are mounted. A storage reel of a taping package in which these electronic components are loaded is mounted on an automatic mounting machine, and a feed hole of a carrier tape is engaged with a pin of a supply sprocket. The taping package is pulled out intermittently by driving the supply sprocket,
Peel the top cover tape from the carrier tape. Thereby, the storage parts of the carrier tape are sequentially supplied to the take-out position in a state where the electronic parts can be taken out. And
Electronic parts are taken out from the carrier tape storage part using the parts pick-up member of the automatic mounter and mounted on the circuit board.

[0004]

According to the above-mentioned conventional taping package, when it is wound on a storage reel or the like, it can be stored and stored.
When the carrier tape is transported, the storage part of the carrier tape is bent and deformed, which damages the parts, which may cause mounting failure. In other words, a bending moment acts on the carrier tape during winding on the storage reel or during storage / transportation, and this bending moment causes the carrier tape to bend and deform, so that the carrier tape is wound or wound on the storage reel. Retained. However, the carrier tape is bent and deformed not only in the connecting part between the housing parts but also in the housing part, and the bending deformation of the housing part is larger as the housing part is longer in the longitudinal direction of the carrier tape. As a result, the parts loaded in the storage section are
It will come into contact with the wall of the storage part and be damaged. For example,
Regarding electronic parts, electronic parts such as ICs having terminals (hereinafter referred to as leads) in four directions are used. For this electronic part, the leads in the longitudinal direction of the carrier tape come into contact with the wall of the storage part and are deformed. To do. As a result, this electronic component cannot be properly mounted on the circuit board, resulting in defective mounting of electronic equipment.

Further, since the storage portion of the carrier tape is bent and deformed, and the bending deformation is increased as the storage portion is lengthened in the longitudinal direction of the carrier tape, a component having a relatively large size,
For example, a liquid crystal plate or the like cannot be used as a taping package, and is supplied by a tray. As a result, it is difficult to increase the mounting speed of relatively large-sized components.

[0006] Therefore, in order to prevent bending deformation of the storage portion of the carrier tape, a carrier tape is proposed in which an electronic component formed by joining a box-shaped storage portion made of hard resin onto a base tape made of soft resin is proposed. (See, for example, JP-A-4-102559). However, this carrier tape has a complicated manufacturing process and structure, and is expensive. Also, the top cover tape is heat-welded to the opening of the storage part, but since the top cover tape is separated from the base tape by the height of the storage part, the top cover tape stretches abnormally when wound on the storage reel. . As a result, it is difficult to peel off the top cover tape smoothly during use, which is considered to be difficult for practical use.

The present invention has been made in view of the above-mentioned conventional circumstances, and its object is to suppress bending deformation of the storage portion, to load the parts without damaging them, and to mount parts having a relatively large size. An object of the present invention is to provide a carrier tape of a taping package which can be loaded and has a simple structure and is inexpensive.

[0008]

In order to solve the above-mentioned problems, in the present invention, a taping package is formed by forming a low-rigidity portion that lowers the bending rigidity in the connecting portion between the storage portions of the carrier tape. The bending stress due to the bending moment that acts when the tape is wound around the storage reel or the like and stored or transported is concentrated on the low rigidity portion. As a result, the connecting portion is bent or bent by the bending moment acting on the carrier tape, and the bending deformation of the storage portion is suppressed.

That is, according to the present invention, concave storage portions for loading components are formed at regular intervals in the longitudinal direction of the tape-shaped resin-made long material, and the feed holes are parallel to the longitudinal direction of the resin-made long material. In the carrier tape of the taping package formed at a constant interval near at least one of the ends, a low-rigidity portion that reduces the bending rigidity is formed in the connection portion between the storage portions, and a bending moment acts. When doing so, the connecting portion is curved or bent at the portion where the low-rigidity portion is formed.

The low-rigidity portion is a bending stress absorbing hole formed in the connecting portion between the accommodating portions, or a bending portion formed in at least one end portion of the connecting portion parallel to the longitudinal direction of the carrier tape. Notches for stress absorption may be used. Further, it may be a thin portion for bending stress absorption or a bending portion for bending stress absorption formed in the connecting portion between the storage portions. Further, it may be formed by combining two or more kinds of the respective low rigidity portions or other low rigidity portions.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Each embodiment of the present invention will be described with reference to the drawings. 1 to 4 are explanatory views conceptually explaining the first embodiment, and 1 is an IC having leads 3 in four directions.
It is a taping package in which electronic components 2 such as The taping package 1 includes a carrier tape 4 on which the electronic component 2 is loaded, and a top cover tape 5 that prevents the loaded electronic component 2 from falling off. In the carrier tape 4, concave storage portions 6 for loading the electronic components 2 are formed by embossing at regular intervals in the longitudinal direction of the tape-shaped long resin material, and feed holes 7 are formed in the long direction of the long material. It is formed by punching at regular intervals near both parallel ends. Circular bending stress absorbing holes (hereinafter referred to as holes) 9 are formed at a constant interval in the width direction by punching in a connecting portion 8 that connects the respective housing portions 6 of the carrier tape.
As a result, the bending rigidity of the connecting portion 8 is reduced,
The taping package 1 is easily bent and deformed by a bending moment that acts when it is wound on a storage reel (not shown) or stored and transported, and the bending moment hardly acts on the storage section 6. ing. That is, the bending stress generated by the bending moment is concentrated in the hole portion 9, the connecting portion 8 bends or bends in the hole portion 9, and the carrier tape 4 is wound as a whole. The shape of the hole 9 may be any of a shape that is long in the width direction of the carrier tape 4, a rhombus, a star, a composite shape such as a combination of a circular shape and an elongated shape, and a cut of various shapes. Good. The holes 9 may be formed in a single or plural number in both the width direction and the longitudinal direction of the carrier tape 4, and it is preferable that the holes 9 are regularly arranged, but they are not necessarily regularly arranged. You don't have to. The top cover tape 5 is made of a tape-shaped resin long material, and after the electronic component 2 is loaded in the storage portion 6 of the carrier tape, both ends parallel to the longitudinal direction are heat-welded to cover the storage portion 6. Tape 4
It is stuck to.

The taping package 1 is formed by loading the electronic parts 2 into the storage part 6 of the carrier tape and heat-sealing the top cover tape 5 to the carrier tape 4 so as to cover each storage part 6. While being formed, it is wound around a storage reel (not shown) or the like and stored in a roll shape. A bending moment acts on the carrier tape 4 when wound on a storage reel or the like, but since the connecting portion 8 has a structure with low bending rigidity, for example, a hole formed in the connecting portion 8 as shown in FIG. The portion 9 is curved or bent, and the storage portion 6 and the formation region of the feed hole 7 along the storage portion 6 are hardly subjected to bending deformation. That is, the taping package 1 is wound around the storage reel or the like by bending or bending the connecting portion 8. A bending moment may act on the carrier tape 4 even when the taping package 1 is stored and transported in a state where it is stored in a storage reel or the like, but the connecting portion 8 bends or bends in the same manner as described above. The bending stress due to the bending moment is absorbed. As a result, the storage portion 6 and the feed hole 7 along the storage portion 6
Almost no bending deformation is applied to the formation region of.

As described above, the electronic component 2 loaded in the carrier tape housing 6 has the leads 3 in four directions, but the leads 3 oriented in the longitudinal direction of the carrier tape 4 are also damaged. And is stored in the proper state. Further, since the region where the feed hole 7 is formed along the storage portion 6 is not subjected to bending deformation, the pitch of the feed hole 7 does not change. As a result, when the taping package 1 is mounted on the automatic mounting machine (not shown), the pins (not shown) of the supply sprocket are properly engaged with the feed holes 7, and the storage part 6 of the carrier tape is held. Since the electronic component 2 loaded in the electronic component 2 is accurately positioned at the take-out position, the electronic component 2 can be taken out smoothly and surely by the component taking-out member of the automatic mounting machine. Therefore, the electronic component 2 can be accurately mounted on the circuit board, and the mounting failure due to the bending deformation of the storage portion 6 of the carrier tape can be prevented.

5 and 6 are explanatory views conceptually explaining the second embodiment. The taping package 1 shown in FIGS. 5 and 6 has a connecting portion 8 between the storage portions 6 of the carrier tape.
1 has the same structure as the taping package 1 shown in FIGS. 1 to 4, except that bending stress absorbing notches (hereinafter referred to as notches) 10 are formed by punching at both ends. . Note that the same reference numerals as those in FIGS. 1 to 4 mean the same functional members. The notch 10 may be formed at one end of the connecting portion 8. The shape may be any shape such as an arc shape or a square shape, and may be cuts of various shapes.

Taping package 1 shown in FIGS. 5 and 6.
Since it is configured as described above, the bending stress due to the bending moment acting on the carrier tape 4 is concentrated in the notch portion 10 at the time of winding on the storage reel or the like, storage / transportation, etc. The connecting portion 8 is curved or bent at the portion where the portion 10 is formed. As a result, as in the case of FIGS. 1 to 4, the taping package 1 is wound and stored in a roll shape without bending and deforming the storage portion 6 and the formation region of the feed hole 7 along the storage portion 6. -Can be transported.

7 and 8 are explanatory views conceptually explaining the third embodiment. The taping package 1 shown in FIGS. 7 and 8 has a connecting portion 8 between the storage portions 6 of the carrier tape.
It has the same structure as the taping package shown in FIGS. 1 to 4, except that a thin portion for bending stress absorption (hereinafter, referred to as a thin portion) 11 is formed in. Note that the same reference numerals as those in FIGS. 1 to 4 mean the same functional members. The thin portion 11 is formed by forming a concave portion or a streak in the central portion in the longitudinal direction of the connecting portion 8 over the entire width direction by molding, but may be formed at a portion other than the central portion in the longitudinal direction. Alternatively, it may be formed by providing a plurality of rows of concave portions or streaks. Further, it may be formed in a part of the width direction, and in that case, it may be formed in a plurality of places. The shape of the thin portion 11 is based on the shape of the recess or the line, but the shape of the recess or the line may be linear, curved or the like in the width direction, and the thickness of the recess or the line may be changed. The width in the longitudinal direction may be non-uniform. The thickness of the thin portion 11 may be non-uniform, and may be, for example, a state in which the cross-sectional shape of the concave portion or the streak in the longitudinal direction corresponds to a conical shape or a pyramidal shape. The thin portion 11 is provided on the front surface side of the carrier tape 4, that is, on the side where the storage portion 6 is open, but may be provided on the back surface side or the middle of the carrier tape 4.

Taping package 1 shown in FIGS. 7 and 8.
Since it is configured as described above, the bending stress due to the bending moment acting on the carrier tape 4 is concentrated on the thin portion 11 at the time of winding on a storage reel or the like, storage and transportation, etc. The connecting portion 8 bends or bends at the portion where the portion 11 is formed. As a result, as in the case of FIGS. 1 to 4, the taping package 1 is wound and stored in a roll shape without bending and deforming the storage portion 6 and the formation region of the feed hole 7 along the storage portion 6. -Can be transported.

9 and 10 are explanatory views for conceptually explaining the fourth embodiment. The taping package 1 shown in FIGS. 9 and 10 has a bending portion for bending stress absorption (hereinafter referred to as a bending portion) 1 at a connecting portion 8 between the storage portions 6 of the carrier tape.
It has the same structure as the taping package 1 shown in FIGS. 1 to 4 except that 2 is formed. In addition, FIG.
The same reference numerals as those in 4 mean the same functional members. The bent portion 12 is formed by forming a groove portion in the central portion of the connecting portion 8 in the longitudinal direction over the entire width direction by molding, but it may be formed at a portion other than the central portion in the longitudinal direction. It may be formed in a bellows shape by providing a plurality of rows. Further, it may be formed in a part of the width direction, and in that case, it may be formed in a plurality of places. The shape of the bent portion 12 is based on the shape of the groove portion, but the shape of the groove portion may be linear, curved, or the like when oriented in the width direction. It may be non-uniform.

A taping package 1 shown in FIGS. 9 and 10.
Since it is configured as described above, the bending stress due to the bending moment acting on the carrier tape 4 concentrates on the bending portion 12 during winding on a storage reel or the like, storage / transportation, etc. The connecting portion 8 is curved or bent at the portion where the portion 12 is formed. As a result, as in the case of FIGS. 1 to 4, the taping package 1 is wound and stored in a roll shape without bending and deforming the storage portion 6 and the formation region of the feed hole 7 along the storage portion 6. -Can be transported.

Needless to say, the present invention is not limited to the above-described embodiments. For example, a carrier tape is provided with a feed hole only near one end in the longitudinal direction. May be. As the low-rigidity portion, those in each of the embodiments may be combined, and for example, notches are provided at both ends of the connecting portion between the storage portions parallel to the longitudinal direction of the carrier tape, and the intermediate portion in the width direction of the connecting portion is formed. An elongated hole extending in the width direction may be provided in the.

[0021]

According to the present invention, since the low rigidity portion is formed in the connecting portion between the storage portions of the carrier tape, the following effects, which cannot be expected by the conventional one, can be obtained. The bending stress due to the bending moment that acts when the taping package is rolled up, stored, or transported is absorbed at the portion where the low-stiffness portion is formed, and the connecting portion of the carrier tape easily bends or bends. Bending deformation of the tape storage portion is suppressed. As a result, the components loaded in the storage unit can be wound, stored, and transported without damaging them. As a result, the parts can be supplied without damage during use and can be mounted much better than before. Since the bending deformation of the feed hole forming region along the storage portion of the carrier tape is also suppressed, the pitch of the feed hole does not change. This allows the feed hole to properly engage the pin of the supply sprocket when in use, so that the component can be accurately supplied to the take-out position. As a result, it is possible to surely take out the component from the storage portion of the carrier tape without causing the component take-out defect by the component taking-out member of the automatic mounter, and to mount the component much better than in the past. As described above, since the parts can be loaded without damaging the parts and the pitch of the feed hole does not change, mounting defects can be reduced and the mounting speed can be increased as compared with the conventional case. By suppressing the bending deformation of the storage portion of the carrier tape, it is possible to make a relatively large-sized component as a taping package. In particular, for electronic parts, even ICs having leads on four sides, liquid crystal plates having a relatively large size, etc. can be replaced with trays to form a taping package, and the mounting speed of these parts can be increased. It has become possible. A low-stiffness part is formed in the connecting part between the storage parts of the carrier tape, and the manufacturing process and structure are much simpler than the conventional base tape joined with the box-shaped storage part. It has become possible to provide it at low cost.

[Brief description of drawings]

FIG. 1 is an explanatory view conceptually illustrating a first embodiment of the present invention, and is a plan view in a state where components are loaded.

FIG. 2 is an enlarged sectional view taken along the line AA of FIG.

FIG. 3 is an enlarged sectional view taken along the line BB of FIG. 1;

FIG. 4 is an explanatory view conceptually explaining the operation of the first embodiment of the present invention, and is a front view showing a part of the taping package in the wound state.

FIG. 5 is an explanatory view conceptually explaining the second embodiment of the present invention, and is a plan view in a state where components are loaded.

6 is an enlarged cross-sectional view taken along the line CC of FIG.

FIG. 7 is an explanatory view conceptually explaining the third embodiment of the present invention, and is a plan view in a state where components are loaded.

8 is an enlarged cross-sectional view taken along the line DD of FIG.

FIG. 9 is an explanatory view conceptually explaining the fourth embodiment of the present invention, and is a plan view in a state where components are loaded.

10 is an enlarged cross-sectional view taken along the line EE of FIG.

[Explanation of symbols]

1 Taping Package 2 Electronic Component 3 Electronic Component Terminal (Lead) 4 Carrier Tape 5 Top Cover Tape 6 Storage Part 7 Feeding Hole 8 Connection between Storage Parts 9 Bending Stress Absorption Hole (Hole) 10 Bending Stress Absorption Notch part (notch part) 11 Thin part for bending stress absorption (thin part) 12 Bending part for bending stress absorption (bending part)

Claims (5)

[Claims] 1. A recess for accommodating a component is formed at regular intervals in a longitudinal direction of a tape-shaped long resin material, and at least one feed hole is parallel to the long direction of the long resin material. In the carrier tape of the taping package, which is formed at regular intervals near the ends, a low-stiffness portion that reduces the bending rigidity is formed at the connecting portion between the storage parts, and when the bending moment acts, the low rigidity A carrier tape for a taping package, wherein the connecting portion is curved or bent at a portion where the oxidization portion is formed. 2. The carrier tape for a taping package according to claim 1, wherein the low-rigidity portion is a bending stress absorbing hole formed in a connecting portion between the accommodating portions. 3. The carrier for a taping package according to claim 1, wherein the low-rigidity portion is a bending stress absorbing notch formed in an end portion of the connecting portion between the storage portions that is parallel to the longitudinal direction. tape. 4. The carrier tape for a taping package according to claim 1, wherein the low-rigidity portion is a thin portion for absorbing bending stress formed in a connecting portion between the accommodating portions. 5. The carrier tape for a taping package according to claim 1, wherein the low-rigidity portion is a bending stress absorbing bent portion formed at a connecting portion between the accommodating portions.