TWI770170B - Forming method of carrier tape - Google Patents

Abstract

The present invention relates to a forming method of a carrier tape (10), the carrier tape (10) has more than one row of feed holes and a receiving recess (3) for accommodating parts, and the forming method of the carrier tape (10) comprises: conveying a step of conveying the sheet (10A) to a drum-type mold (120); and a forming step of vacuum-forming the sheet (10A) conveyed to the surface of the drum-type mold (120) by suction; In the forming step, while blowing hot air from the hot air heating mechanism (160) to heat the sheet (10A), vacuum forming is performed, and the amount of hot air received by the sheet (10A) is set to 0.125mL/ ^mm2 or more And 3.75mL/ ^mm2 or less. According to the present invention, it is possible to provide a method of forming a carrier tape that ensures the rectangularity of the opening edge of the housing recess.

Description

Forming method of carrier tape

The present invention relates to a method for forming a carrier tape having a accommodating recess for accommodating parts.

Conventionally, carrier tapes having housing recesses for housing components are formed by, for example, a method in which a sheet as a base material tape is heated and softened by a heating roller, and then continuously supplied to a roller die to vacuum-form the housing recesses (refer to Patent Document 1).

In addition, there is also known a method for forming a carrier tape, in which a heating roller is used to directly heat a sheet, and then hot air of 450° C. or higher and 550° C. or lower is pressurized on a roller-type mold to a housing recessed portion being formed, so that the housing is formed. The concave portion is vacuum formed (refer to Patent Document 2).

[Prior Art Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 10-272684

[Patent Document 2] Japanese Patent Laid-Open No. 11-207811

However, as shown in Document 2, even if the heating temperature of the hot air is adjusted, the opening edge of the housing recess has a shape with a large curvature (see FIG. 6 ), and the rectangularity cannot be obtained, so that the molding accuracy of the housing recess cannot be stabilized. .

Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide a method for forming a carrier tape that ensures the rectangularity of the opening edge of the housing recess.

(1) An aspect of the present invention is a method for forming a carrier tape, the carrier tape having one or more rows of storage recesses for accommodating parts, and the method for forming the carrier tape includes a conveying step of conveying a sheet to a A roller type mold; and a forming step of sucking the above-mentioned sheet conveyed to the surface of the above-mentioned roller type mold to vacuum-form it; in the above-mentioned forming step, while blowing hot air from a hot air heating mechanism to heat the above-mentioned sheet material, While being vacuum-formed, the amount of the hot air to which the sheet is subjected is set to 0.125 mL/mm ² or more and 3.75 mL/mm ² or less.

(2) In the molding method of the carrier tape of the above (1), the blowing temperature of the hot air may be set to 300°C or higher and 700°C or lower.

(3) In the forming method of the carrier tape according to the above (1) or (2), the blowing flow rate of the hot air can be set to be 8 mm in width per row, 10 L/min or more and 60 L/min or less.

(4) In the forming method of the carrier tape according to any one of the above (1) to (3), the conveying speed of the sheet may be set to 2 m/min or more and 10 m/min or less.

(5) In the forming method of the carrier tape according to any one of the above (1) to (4), the above-mentioned roller die can be maintained at a temperature of 20°C or higher and 100°C or lower.

According to the present invention, it is possible to provide a method of forming a carrier tape that ensures the rectangularity of the opening edge of the housing recess.

1: carrier tape

1A: carrier tape

2: Feed hole

3: Storage recess

3A: Storage recess

4: Bottom hole

10: Carrier belt

10A: Sheet

100: Forming device

110: Preheating roller

120: Roller mold

130: Accumulation Department

140: Stamping

150: Conveying Mechanism

160: Hot air heating mechanism

310: Open edge

310A: Open edge

MD: conveying direction (longitudinal direction)

P: Parts

S1: Conveying step

S2: Forming step

FIG. 1 is a perspective view of the carrier tape.

Figure 2 is a top view showing a plurality of rows of carrier tapes.

Fig. 3 is a schematic view showing a carrier tape forming apparatus used in the carrier tape forming method according to the embodiment of the present invention.

Fig. 4 is a flow chart showing a method for forming a carrier tape according to an embodiment of the present invention.

5 is a view of a carrier tape formed by the method of forming the carrier tape according to the embodiment of the present invention, (a) is a plan view, (b) is a cross-sectional view A-A, and (c) is a cross-sectional view B-B.

6 is a view of a carrier tape with poor formability, (a) is a plan view, (b) is a C-C cross-sectional view, and (c) is a D-D cross-sectional view.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, in the embodiment of this specification, the same code|symbol is attached|subjected to the same member throughout the whole.

First, before explaining the forming method of the carrier tape 1 according to the embodiment of the present invention, the carrier tape 1 will be described. FIG. 1 is a perspective view of a carrier tape 1 , and FIG. 2 is a top view of a plurality of rows of carrier tapes 10 .

The carrier tape 1 shown in FIG. 1 accommodates a plurality of parts P for storage or transportation, or The components P are smoothly supplied to the mounter who mounts the components P on the board. Examples of the parts P include electronic parts, precision parts, and the like.

In the carrier tape 1, along the conveyance direction MD (longitudinal direction) of the tape, a plurality of feed holes 2 and housing recesses 3 for housing the components P are formed at predetermined intervals, respectively. Furthermore, in the present embodiment, the feed hole 2 is circular in plan view, but the size, shape and interval of the feed hole 2 should be provided through a feeding mechanism such as a mounting machine. In addition, the feed hole 2 may be provided through both sides of the storage recess 3 along both sides in the longitudinal direction MD of the belt.

The accommodating recessed part 3 is formed according to the size and shape of the component P to be accommodated, and is formed in a substantially rectangular shape in plan view in this embodiment. In addition, the housing recessed part 3 may form the bottom hole 4 for inspection etc. in the bottom surface, or may further form a pedestal in the bottom surface. Furthermore, the size of the receiving recess 3 is usually in the range of 0.1 mm square to 16 mm square, and the width of the carrier tape 1 is in the range of 4 mm to 24 mm.

In addition, the carrier tape 1 is formed of a thermoplastic resin. Examples of thermoplastic resins include synthetic resins such as polycarbonate, polystyrene, polyvinyl chloride, amorphous polyethylene terephthalate, and polypropylene; carbon is kneaded into these resins to impart electrical conductivity. Those formed by conducting conductive coating on the surface, etc.

However, the carrier tape 1 is formed by the following forming apparatus 100 for carrier tapes 10. When forming, the carrier tapes 10 are formed into a plurality of rows of carrier tapes 10 such as 4 rows and 8 rows. Then, the carrier tape 1 is cut and separated into each row to manufacture. Furthermore, it also exists in the plural The case where the positioning recesses used when forming the feed holes 2 or the like are provided between the rows or at both ends of the row carrier tape 10 .

Next, the forming apparatus 100 and the forming method of the carrier tape 10 will be described. 3 is a schematic diagram showing a forming apparatus 100 of the carrier tape 10 used in the forming method of the carrier tape 10 according to the embodiment of the present invention, and FIG. 4 is a flowchart showing the forming method of the carrier tape 10 according to the embodiment of the present invention.

The forming apparatus 100 of the carrier tape 10 shown in FIG. 3 includes at least a preheating roller 110 , a roller die 120 , a storage unit 130 , a stamper 140 , a conveying mechanism 150 , and a hot air heating mechanism 160 .

The preheating roller 110 heats and softens the sheet 10A while conveying the sheet 10A supplied from a feeding mechanism (not shown) to the roll die 120 provided downstream in the conveying direction MD by rotating. 110 is constituted so that the sheet 10A can be heated at a temperature of about 100°C. By preheating the sheet 10A with the preheating roller 110, the winding habit and the waviness of the sheet 10A can be corrected to some extent.

The roller die 120 has a plurality of cavities (not shown) on the outer periphery corresponding to the size, shape and interval of the storage recesses 3 to be formed. The material 10A is vacuum-formed to form the housing recess 3 . In addition, each cavity is connected to a vacuum generator or the like. In addition, the drum-type mold 120 is maintained at a constant temperature in the range of approximately 20° C. to 100° C., for example, by a cooling/heating medium such as water.

The accumulating portion 130 retains the sheet 10A in which the housing recessed portion 3 is formed, and cools it once to remove thermal stress during vacuum forming.

The die 140 punches out the feed hole 2 in the sheet 10A, and also punches out the bottom hole 4 in the bottom surface of the receiving recess 3 as needed.

The conveyance mechanism 150 conveys the sheet 10A from the accumulation unit 130 to the stamper 140 intermittently.

The hot air heating mechanism 160 is for blowing hot air to the sheet 10A and blowing it thereon, and has a plurality of hot air blowing outlets not shown. The hot-air heating mechanism 160 is provided so that the hot-air outlet and the sheet 10A are spaced apart from each other by approximately 1 mm to 10 mm.

The hot air outlet is arranged along the width direction of the sheet 10A in a manner corresponding to the position where each row of storage recesses 3 is formed. Hot air is uniformly blown out from the positions where the storage recesses 3 are formed in each row. Usually, the amount of hot air received by the sheet 10A is in the range of 0.125 mL/mm ² or more and 3.75 mL/mm ² or less, or the blowing flow rate of the hot air is 10 L/min or more and 60 L/min or less per line width (8 mm). scope.

In addition, the blowing temperature of the hot air is generally in the range of approximately 300°C or higher and 700°C or lower, preferably 600°C or lower, in the vicinity of the hot air outlet. Furthermore, the blowing temperature of the hot air can also be set according to the melting point of the material of the sheet 10A.

Further, the forming apparatus 100 includes, in addition to the above-mentioned various types of mechanisms, a cutting mechanism that cuts and separates the carrier tape 10 formed into a plurality of rows into one row of the carrier tape 1 , and a winding mechanism that The components P are accommodated in the accommodating recesses 3 of the respective carrier tapes 1 and then wound up on a reel.

Next, the forming method of the carrier tape 10 will be described, and the forming method includes at least: a conveying step S1 , which is to convey the sheet 10A to the drum-type mold 120 ; and a forming step S2 , which is to be conveyed to the drum-type mold 120 . The sheet 10A on the surface is sucked and vacuum-formed (refer to FIG. 4 ).

In the conveyance step S1, the sheet 10A is conveyed to the roll die 120 at a constant conveyance speed. At this time, the conveyance speed is approximately 1 m/min to 15 m/min, preferably 2 m/min to 10 m/min. In addition, in the step before the conveyance step S1, the sheet 10A can be preheated by the preheating roller 110.

In the subsequent forming step S2, the sheet 10A is vacuum-adsorbed on the outer periphery of the roller mold 120, and the sheet 10A is vacuum-formed while blowing hot air from the hot-air heating mechanism 160 to heat the sheet 10A. At this time, the roll-type mold 120 is constituted so as to be able to be evacuated at least during the heating process of the sheet 10A.

After that, the carrier tape 10 having the storage recess 3 formed thereon is cooled in the accumulator 130 , and is intermittently conveyed by the conveyance mechanism 150 , and the die 140 is used to penetrate the feed hole 2 and the like. Then, the carrier tape 10 having the feed hole 2 and the storage recess 3 formed thereon is cut and separated by a cutting mechanism. In this way, a single row of carrier tapes 1 is formed.

Here, the effects obtained by the molding method of the carrier tape 10 according to the embodiment of the present invention will be described in detail with reference to Embodiment 1 and Embodiment 2. FIG.

Fig. 5 is a view of the carrier tape 1 formed by the method of forming the carrier tape 1 according to the embodiment of the present invention, (a) is a top view, (b) is a cross-sectional view A-A, (c) is a cross-sectional view B-B, and Fig. 6 is a poor formability In the drawings of the carrier tape 1A, (a) is a top view, (b) is a C-C cross-sectional view, and (c) is a D-D cross-sectional view. In addition, hatching in FIG. 5 and FIG. 6 is added in order to easily confirm the area difference of the opening edges 310 and 310A.

(Example 1)

In this embodiment, a carrier tape 10 comprising four rows of carrier tapes 1 is formed from a sheet 10A made of polycarbonate (melting point about 250° C.). The carrier tape 1 is 8 mm wide. Furthermore, the design dimensions of the storage recess 3 are as follows: the opening edge 310 is a rectangle of 1.0 mm×2.5 mm, the depth is 0.8 mm, and the interval in the conveying direction MD is 2 mm.

The forming conditions of the forming apparatus 100 set the temperature of the preheating roll 110 to 100°C. Moreover, the hot-air blowing outlet of the hot-air heating mechanism 160 was provided at a distance of 1.5 mm from the sheet 10A, and the hot-air temperature was set to 600°C. The temperature of the roller die 120 was set to 60°C.

Then, the blowing flow rate of the hot air was changed from 5 L/min per line width (8 mm) to 65 L/min, and the conveying speed was changed from 1.0 m/min to 11 m/min.

The forming evaluation of the carrier tape 1 was carried out by: with respect to the storage recess 3, along the conveyance The opening edge 310 in the cross section cut at the center of the width direction was observed with a microscope in the feeding direction MD, and the radius R (mm) was measured. The evaluation criteria were as follows: when the radius R was 0.3 mm or less, it was regarded as good (○); when the radius R was larger than 0.3 mm, or when the carrier tape 1 was broken, it was regarded as poor (x). These results are shown in Table 1.

As shown in Table 1, when the blowing flow rate exceeds 60 L/min, the sheet 10A is in a high temperature state and may be melted, and as a result, the sheet 10A is broken and cannot be continuously formed. Similarly, when the conveyance speed is less than 2 m/min, the sheet 10A is broken and cannot be continuously formed.

In addition, when the blowing flow rate is less than 10 L/min, since the sheet 10A is not sufficiently heated, it cannot be extended so as to follow the cavity of the roller die 120, so the opening of the concave portion 3A is accommodated. The radius R of the lip 310A becomes larger (see FIG. 6 ). Similarly, when the conveyance speed exceeds 10 m/min, since the sheet 10A cannot be extended to follow, the radius R of the opening edge 310A becomes large.

On the other hand, when the blowing flow rate is 10 L/min to 60 L/min, and the conveying speed is in the range of 2 m/min or more and 10 m/min or less (if converted into the amount of hot air per unit area 1 mm ² of the sheet 10A, then 0.125 mL/mm ² or more and 3.75 mL/mm ² or less), the radius R of the opening edge 310 did not increase (see FIG. 5 ), and many favorable evaluations (◯) were obtained.

Therefore, from this Table 1, it can be seen that a favorable evaluation (○) cannot be obtained unless the blowing flow rate of the hot air heating mechanism 160 reaches 10 L/min or exceeds 60 L/min regardless of the conveying speed. On the contrary, it turned out that a favorable evaluation (○) was not obtained unless the conveyance speed was 2 m/min or more than 10 m/min regardless of the blowing flow rate. Moreover, when the conveyance speed exceeds 6 m/min, it turns out that a favorable evaluation ((circle)) may not be obtained at a low blow-out flow rate.

Then, the conveying speed was set to 6.0 m/min, the blowing flow rate of the hot air was changed from 5 L/min to 65 L/min, the temperature of the roller die 120 was changed from 10° C. to 110° C., and the radius R of the opening edge 310 was measured ( mm), and evaluated in the same manner as above. These results are shown in Table 2.

As shown in Table 2, when the blowing flow rate exceeds 60 L/min, the sheet 10A is in a high temperature state and may be melted. As a result, the sheet 10A is broken and cannot be continuously formed. When the blowing flow rate is less than 10 L/min, since the sheet 10A is not sufficiently heated and cannot be extended to follow the cavity of the roller mold 120, the radius R of the opening edge 310A of the receiving recess 3A becomes large.

In addition, when the heating temperature of the drum mold 120 exceeds 100° C., the sheet 10A is in a high temperature state and may be melted, and when the drum mold 120 is demolded, the housing recess 3A is greatly deformed and formed. Therefore, a winding failure occurred, and continuous forming was not possible. In addition, when the heating temperature of the drum mold 120 is lower than 20° C., since the sheet 10A is not sufficiently heated, it cannot extend so as to follow the cavity of the drum mold 120 , so the opening of the concave portion 3A is accommodated. The radius R of the lip 310A becomes larger.

On the other hand, at a blowing flow rate of 10 L/min to 60 L/min (when converted into the amount of hot air received by the sheet 10A per unit area of 1 mm ² , it is 0.2 mL/mm ² or more and 1.25 mL/mm ² or less), In addition, when the heating temperature of the roller mold 120 was in the range of 20° C. or higher and 100° C. or lower, the radius R of the opening edge 310 did not increase, and many favorable evaluations (◯) were obtained.

Therefore, it can be seen from this table 2: if regardless of the temperature of the drum type mold 120, the blowing flow rate of the hot air heating mechanism 160 does not reach 10 L/min (if it is converted into the amount of hot air received by the sheet 10A per unit area of 1 mm ² , then 0.2 mL/mm ² ) or more than 60 L/min (1.25 mL/mm ^{2 in terms of the amount of hot air received by the sheet 10A per unit area of 1 mm 2 )} , a favorable evaluation (○) was not obtained. On the contrary, it turns out that a favorable evaluation (○) cannot be obtained unless the temperature of the roller die 120 reaches 20° C. or exceeds 100° C. regardless of the blowing flow rate. Moreover, when the temperature of the roller type|mold 120 is less than 60 degreeC, it turns out that a favorable evaluation ((circle)) may not be obtained at a low blow-out flow rate.

(Example 2)

In this example, the molding conditions were the same as those of Example 1 except that the sheet 10A made of polystyrene (melting point of about 240° C.) was used instead of the sheet 10A made of carbonate. The results are shown in Tables 3 and 4.

As shown in Table 3, when the blowing flow rate exceeds 60 L/min, the sheet 10A is in a high temperature state and may be melted, and as a result, the sheet 10A is broken and cannot be continuously formed. Similarly, when the conveyance speed is less than 2 m/min, the sheet 10A is broken and cannot be continuously formed.

Furthermore, when the blowing flow rate is less than 10 L/min, since the sheet 10A is not sufficiently heated, it cannot extend so as to follow the cavity of the roller die 120, so the radius R of the opening edge 310A of the receiving recess 3A becomes larger. big. Similarly, when the conveyance speed exceeds 10 m/min, since the sheet 10A cannot be extended to follow, the radius R of the opening edge 310A becomes large.

On the other hand, the radius R of the opening edge 310 did not become larger in the range of the blowing flow rate of 10 L/min to 60 L/min and the conveying speed of 2 m/min or more and 10 m/min or less, and a favorable evaluation (○) was obtained.

Therefore, from this Table 3, it turns out that a favorable evaluation (○) cannot be obtained unless the blowing flow rate of the hot-air heating mechanism 160 reaches 10 L/min or exceeds 60 L/min irrespective of the conveying speed. On the contrary, it turned out that a favorable evaluation (○) was not obtained unless the conveyance speed was 2 m/min or more than 10 m/min regardless of the blowing flow rate.

In addition, it can be seen from the comparison between Table 1 and Table 3 that the radius R of the opening edge 310 does not become larger even in the low flow rate, high speed area, or low flow rate and temperature area of the sheet 10A made of polystyrene. , compared with the polycarbonate sheet 10A, the formability is good.

As shown in Table 4, when the blowing flow rate exceeds 60 L/min, the sheet 10A is in a high temperature state and may be melted, and as a result, the sheet 10A is broken and cannot be continuously formed. When the blowing flow rate is less than 10 L/min, since the sheet 10A is not sufficiently heated and cannot be extended to follow the cavity of the roller mold 120, the radius R of the opening edge 310A of the accommodating recess 3A becomes larger.

In addition, when the heating temperature of the drum mold 120 exceeds 100° C., the sheet 10A is in a high temperature state and may be melted, and when the drum mold 120 is demolded, the housing recess 3A is greatly deformed and formed. Therefore, a winding failure occurred, and continuous forming was not possible. In addition, when the heating temperature of the drum mold 120 is lower than 20° C., the sheet 10A is not sufficiently heated and cannot be extended so as to follow the cavity of the drum mold 120 , so the opening edge 310A of the concave portion 3A is accommodated. The radius R becomes larger.

In addition, when the blowing flow rate is 10L/min to 60L/min, and the heating temperature of the roller mold 120 is in the range of 20°C or more and 100°C or less, the radius R of the opening edge 310 does not become larger, and many favorable evaluations are obtained ( ○).

Therefore, it can be seen from this table 4: if regardless of the temperature of the drum type mold 120, the blowing flow rate of the hot air heating mechanism 160 does not reach 10 L/min (if it is converted into the amount of hot air received by the sheet 10A per unit area of 1 mm ² , then 0.2 mL/mm ² ) or more than 60 L/min (1.25 mL/mm ^{2 in terms of the amount of hot air received by the sheet 10A per unit area of 1 mm 2 )} , a favorable evaluation (○) was not obtained. On the contrary, it turns out that a favorable evaluation (○) cannot be obtained unless the temperature of the roller die 120 reaches 20° C. or exceeds 100° C. regardless of the blowing flow rate. Moreover, when the temperature of the drum type mold 120 is less than 60 degreeC, it turns out that a favorable evaluation ((circle)) may not be obtained at a low blow-out flow rate.

In addition, it can be seen from the comparison between Table 2 and Table 4 that the radius R of the opening edge 310 of the polystyrene sheet 10A does not become larger even in the region of low flow rate and high speed, or in the region of low flow rate and temperature. , compared with the polycarbonate sheet 10A, the formability is good.

According to Embodiment 1 and Embodiment 2 above, it is preferable to set the blowing flow rate of the hot air blown from the hot air heating mechanism 160 to 10 L/min or more and 60 L/min or less per line width (8 mm). In other words, it is preferable to set the amount of the hot air to which the sheet 10A is subjected to 0.125 mL/mm ² or more and 3.75 mL/mm ² or less.

Moreover, it is preferable to set the conveyance speed of 10 A of sheets to 2 m/min or more and 10 m/min or less. Furthermore, it can be said that it is preferable to maintain the heating temperature of the drum type mold 120 at the temperature of 20 degreeC or more and 100 degrees C or less.

As described above, the method of forming the carrier tape 10 of the embodiment is a method of forming the carrier tape 10 having the feed holes 2 in one row or more and the housing recesses 3 for housing the components P, and the molding method of the carrier tape 10 includes: conveying In step S1, the sheet material 10A is transported to the roller mold 120; and the forming step S2 is for vacuum forming by suctioning the sheet 10A transferred to the surface of the roller mold 120; in the forming step S2, The amount of hot air received by the sheet 10A is 0.125 mL/mm ² or more and 3.75 mL/mm ² or less while vacuum forming the sheet 10A while blowing hot air from the hot air heating mechanism 160 to heat the sheet 10A. Thereby, by spraying hot air under pressure to the sheet 10A (or the housing recess 3 ) being formed by the roller die 120 , the sheet 10A can be heated and softened to fit into the cavity, so that the opening edge of the housing recess 3 can be secured. 310 is rectangular. In other words, the opening edge 310 of the receiving recess 3 can be suppressed to a small radius R.

In the embodiment, the blowing temperature of the hot air is set to 300°C or higher and 700°C or lower. Thereby, the sheet 10A can be heated and softened by injecting hot air under pressure to the sheet 10A (or the housing recess 3 ) being formed by the roll die 120 .

In the embodiment, the blowing flow rate of the hot air is set to be 8 mm in width per line, 10 L/min or more and 60 L/min or less. Thereby, the sheet 10A can be heated and softened with an appropriate blowing flow rate.

In the embodiment, the conveyance speed of the sheet 10A is set to 2 m/min or more and 10 m/min or less. Thereby, the sheet 10A can be heated and softened by an appropriate blowing flow rate (heating amount).

In the embodiment, the temperature of the drum-type mold 120 is maintained at a temperature of 20° C. or higher and 100° C. or lower. Thereby, the sheet 10A can be heated and softened by appropriate heating heat.

(Variation example)

In the above-mentioned embodiment, the hot air outlet of the hot air heating mechanism 160 is provided in plural corresponding to each row, but only one wide slit opening corresponding to the width of 4 rows may be provided.

In the above-described embodiment, the roller die 120 is capable of at least heating the sheet 10A. It is constructed by vacuuming, but it can also be constructed by vacuuming immediately before heating or vacuuming after heating.

The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited to the above-described embodiments, and various changes and modifications can be made within the scope of the gist of the present invention described in the scope of the claims.

1: carrier tape

2: Feed hole

3: Storage recess

4: Inspection hole

310: Open edge

MD: conveying direction (longitudinal direction)

P: Parts

Claims (7)

A method for forming a carrier tape, the carrier tape having more than one row of storage recesses for housing parts, the forming method for the carrier tape is characterized by comprising: a conveying step of conveying a sheet to a roller die; and a forming step, In the above-mentioned forming step, while blowing hot air from a hot-air heating mechanism to heat the above-mentioned sheet, vacuum forming is performed, and the The amount of the above-mentioned hot air to which the above-mentioned sheet is subjected is set to 0.125 mL/mm ² or more and 3.75 mL/mm ² or less. The method for forming a carrier tape according to claim 1, wherein the blowing temperature of the hot air is set to 300°C or higher and 700°C or lower. The method for forming a carrier tape according to claim 1, wherein the blowing flow rate of the hot air is set to a width of 8 mm per row, 10 L/min or more and 60 L/min or less. The method for forming a carrier tape according to claim 2, wherein the blowing flow rate of the hot air is set to a width of 8 mm per row, 10 L/min or more and 60 L/min or less. The forming method of a carrier tape according to any one of claims 1 to 4, wherein The conveyance speed of the said sheet material shall be 2 m/min or more and 10 m/min or less. The method for forming a carrier tape according to any one of Claims 1 to 4, wherein the above-mentioned roller mold is maintained at a temperature of 20°C or higher and 100°C or lower. The method for forming a carrier tape according to claim 5, wherein the drum-type mold is maintained at a temperature of 20°C or higher and 100°C or lower.

Images