TWI630155B - Sheet for producing carrier tape, method of producing sheet for producing carrier tape and package - Google Patents

Abstract

The sheet 155 for producing a carrier tape of the present invention is made of a tape-like sheet and is made of resin. A plurality of first recessed portions 12 and a plurality of second recessed portions 16 arranged in parallel to the first recessed portion 12 are formed on the first surface 15 of the carrier tape sheet 155. In addition, a sheet 155 for a carrier tape is produced, and has a portion that can be cut and removed along its longitudinal direction, and a plurality of second recessed portions 16 are formed in the removable portion.

Description

Manufacturing sheet for carrier tape, manufacturing method for manufacturing sheet for carrier tape, and Package

The present invention relates to a sheet for a carrier tape, a manufacturing method for a sheet for a carrier tape, and a package.

In general, a packaging body for storing electronic parts (especially very small chip parts such as chip resistors, chip LEDs, and chip capacitors) uses a carrier tape for storing electronic parts (hereinafter also referred to as "carrier tape") A packaging body which is packaged with a cover tape (hereinafter also referred to simply as "cover tape").

As for the carrier tape, after forming a through-hole by punching a part of the band-shaped sheet, a bottom tape is attached to the bottom surface of the sheet to form a punched carrier for the concave part storage portion (pocket). Tape feeding (refer to, for example, Patent Document 1); a compression carrier tape (refer to, for example, Patent Document 2) to form a pocket by compression processing on a part of the belt-shaped sheet; and forming processing (pressing on a part of the belt-shaped sheet) Forming, vacuum cylinder forming, press forming, etc.) forming an embossed carrier tape (see, for example, Patent Document 3) and the like.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 10-218281

[Patent Document 2] Japanese Patent No. 3751414

[Patent Document 3] Japanese Patent Laid-Open No. 2011-225257

The punched carrier tape and the pressurized carrier tape shown in Figs. 23, 24, and 25 are used as sheet substrates, and paper-made ones are the mainstream. These paper carrier tapes generate paper dust from the sheet itself when feeding electronic parts to a surface mount machine. This paper powder causes problems such as poor solder joints of electronic parts or clogging of the suction nozzles of electronic parts. In addition, changes in the size of the pocket due to fluff and moisture absorption in the pocket, and electrification caused by static electricity generated when the cover tape is peeled off during installation, etc., may easily cause problems such as picking errors of the suction nozzles of electronic parts.

In the punching carrier tape described above, the thickness of the sheet (the same as the depth of the pocket) is generally set in accordance with the height of the electronic components to be stored. Therefore, in order to store electronic components having a low height, it is necessary to make the sheet thinner in the punching carrier tape. At this time, due to the insufficient strength of the sheet, In the step of attaching an electronic component and packaging it with a cover tape (hereinafter also referred to as "adhesive tape") or the installation step of an electronic component, when the punching carrier tape is transported by a sprocket, The feed holes are deformed. Such deformation may cause problems such as poor transportation conditions, reduced storage stability during tape application, or pick-up errors during installation. In addition, since the bottom tape must be attached to the bottom surface of the sheet, there is a problem that costs such as material purchase costs or processing costs increase, and the cost of the carrier tape increases.

On the other hand, in the embossed carrier tape shown in FIGS. 26, 27, and 28, the back side of the pocket of the sheet is formed in a protruding shape. Therefore, in the case where the aforementioned punching carrier tape or the aforementioned pressing carrier tape are used in combination, it is necessary to renovate the device of the tape applicator and the surface mounting machine or to exchange parts, which requires higher costs. When the embossed carrier tape is wound around a reel and conveyed, a load is applied to the protrusion on the back side of the sheet. For this reason, problems such as deformation of the component storage portion, falling off of the winding, or loosening of the winding may occur. Furthermore, when the imprint carrier tape is wound on a reel after the tape is applied, the protrusion on the back side of the sheet wound on the outer layer applies pressure to the cover tape wound on the pocket portion of the inner layer. As a result, problems such as damage to the cover tape or breakage of the electronic components are caused.

We expect a kind of carrier tape that can solve these problems, that is, improve the stability of the tape and the surface mounting, and correspond to the cleaning process. Regarding such a carrier tape, based on a review by the present inventors, a resin carrier tape having a plurality of recessed portions (recessed portions for accommodating electronic parts) and a feeding hole has been proposed.

When using such carrier tapes to feed the electronic components stored in the recesses to the surface mounting machine, in order to mount the electronic components with excellent accuracy, it is required to feed the electronic components with excellent positional accuracy. For this reason, it is required that the feeding hole is formed with excellent positional accuracy with respect to the recess in the carrier tape.

Therefore, an object of the present invention is to provide a carrier tape manufacturing sheet that can form a carrier tape that can form a feed hole with excellent positional accuracy with respect to a recessed portion that can accommodate an electronic component, and can produce such a carrier tape. Method for producing sheet for carrier tape by using sheet material, and packaging body including carrier sheet produced from the sheet for carrier tape.

These objects are achieved by the present invention described in (1) to (29) below.

(1) A resin-made carrier tape sheet made of a band-shaped sheet, comprising a first surface and a second surface located on the opposite side of the first surface; and on the first surface A plurality of first recessed portions arranged along the longitudinal direction of the sheet and a plurality of second recessed portions arranged in parallel with the first recessed portion are formed on the sheet. The removed portion is cut in the side direction, and the plurality of second recessed portions are formed on the removable portion.

(2) The sheet for producing a carrier tape according to the above (1), wherein a region other than the removable portion of the first surface is further formed with a parallel arrangement with the first recessed portion. A plurality of feed holes.

(3) The sheet for producing a carrier tape according to the above (1) or (2), wherein the second surface is almost flat.

(4) The sheet for the carrier tape as described in the above (3), wherein if the depth of the second recess is J (mm), the thickness of the second recess for the sheet for the carrier tape is made. The thickness of the bottom portion is K (mm), and the thickness of the portion other than the first recessed portion and the second recessed portion of the sheet for the carrier tape is C (mm), and J + K = C is approximately established.

(5) The sheet for producing a carrier tape as described in the above (3) or (4), wherein if the depth of the second recessed portion is J (mm), When the thickness of the bottom portion of the second recessed portion is K (mm), and the thickness of the first recessed portion and the portion other than the second recessed portion of the carrier tape sheet is set to C (mm), -0.1 < C- (J + K) <0.1 holds.

(6) The sheet for producing a carrier tape according to any one of the above (3) to (5), wherein if the depth of the second recess is J (mm), and the carrier tape is made If the thickness of the sheet other than the first recessed portion and the second recessed portion is C (mm), then C-0.15 ≦ J ≦ C-0.05 is established.

(7) The sheet for producing a carrier tape according to any one of the above (1) to (6), wherein an inner edge portion of the second recessed portion is bent so that a curvature radius is 0.2 mm or less.

(8) The sheet for producing a carrier tape according to any one of (1) to (7) above, wherein the first surface or the second surface is wound as a core material side, and the The diameter of the core material is 5 ~ 300mm.

(9) A method for producing a sheet for a carrier tape according to any one of the above (1) to (8), which comprises forming the sheet-like sheet into a film by an extrusion molding method. A film step; and a forming step of forming the first concave portion and the second concave portion on the first surface of the band-shaped sheet.

(10) The method for producing a sheet for a carrier tape as described in the above (9), wherein in the forming step, first protrusions each having the first recessed portion and the second recessed portion are used. And a mold for forming the second protrusion.

(11) The method for producing a sheet for a carrier tape according to the above (10), wherein the forming mold includes a roller-shaped first mold portion having one or more first projections on the outer periphery.

(12) The manufacturing method for producing a sheet for a carrier tape according to the above (10) or (11), wherein the forming die includes a roller-shaped first piece having one or more second protrusions on the outer periphery. 2 mold section.

(13) The method for producing a sheet for a carrier tape according to any one of (9) to (12), wherein the second surface of the tape-shaped sheet is flattened in the forming step.

(14) The method for producing a sheet for a carrier tape according to the above (13), wherein in the forming step, a contact roller for flattening the second surface of the belt-shaped sheet is used.

(15) The method for producing a sheet for a carrier tape according to any one of (9) to (14) above, further comprising a cooling step of cooling the tape-shaped sheet after the forming step.

(16) The method for producing a sheet for a carrier tape according to the above (15), wherein a cooling roller is used in the cooling step.

(17) The method for producing a sheet for a carrier tape as described in (15) or (16) above, further comprising processing the sheet-like sheet and the first sheet after the cooling step. Punching step of a plurality of feeding holes arranged in parallel with one recess.

(18) The method for producing a sheet for a carrier tape according to the above (17), wherein, in the punching step, a punching die provided with a punching tool for processing the feeding hole is used.

(19) The method for producing a sheet for a carrier tape according to the above (18), wherein the punching die has a position correction mechanism for ensuring positional accuracy of the first recessed portion and the feeding hole.

(20) The method for manufacturing a sheet for a carrier tape according to the above (19), wherein the position correction mechanism includes a position correction for controlling a position of the second recessed portion arranged in parallel with the first recessed portion. A guide and a position control guide; and a guide pin for controlling the position of the feed hole.

(21) The method for manufacturing a sheet for a carrier tape according to the above (20), wherein the punching die is formed on the entrance side of the sheet in the direction of travel of the punching tool of the punching tool that punches out the feed hole and The position correction guide is provided on each outer side of the exit side.

(22) The method for producing a sheet for a carrier tape as described in the above (20) or (21), wherein the punching die is used to punch the sheet of the punching tool of the punching tool out of the feeding hole. The position control guide is provided on each of the outer side of the entrance side and the exit side in the traveling direction.

(23) The method for producing a sheet for a carrier tape according to any one of the above (20) to (22), wherein the punching die is formed by The guide pin is provided on the exit side of the belt-shaped sheet in the traveling direction.

(24) The method for producing a sheet for a carrier tape according to any one of the above (20) to (23), wherein in the punching step, the band-shaped sheet is pressed by a baffle Prior to the first surface, the position of the second recessed portion is controlled by the position correction guide.

(25) The method for producing a sheet for a carrier tape according to the above (24), wherein in the punching step, the punching tool is used to press the first round of the belt-shaped sheet with the punching tool, Before the position of the second recessed portion is controlled by the position correction guide, the position of the second recessed portion is controlled by the position control guide.

(26) The method for manufacturing a sheet for a carrier tape as described in (25) above, wherein the maximum amount of controlling the position of the second recessed portion with the position correction guide is U (mm), and Let the maximum amount of positional deviation between the central axis of the second recessed portion and the central axis of the position control guide be V (mm), then V ≦ U is established.

(27) The method for producing a sheet for a carrier tape as described in the above (25) or (26), wherein, in the punching step, the first step of pressing the belt-shaped sheet with the punching tool is used for pressing. After 2 rounds, before controlling the position of the second recessed portion with the position correction guide, first control the position of the feed hole with the guide pin.

(28) The method for manufacturing a sheet for a carrier tape as described in (27) above, wherein the maximum amount of controlling the position of the second recessed portion with the position correction guide is U (mm), and Let the maximum amount of positional deviation between the central axis of the feed hole and the central axis of the guide pin be W (mm), then W <U holds.

(29) A package comprising: a sheet for producing a carrier tape according to any one of (1) to (8), which is produced by cutting a predetermined width to include the first recessed portion; A carrier tape for accommodating an electronic component; and an upper cover tape that seals an opening of the first recessed portion in a state where electronic components are stored in the first recessed portion.

According to the present invention, it is possible to provide a carrier tape sheet that can produce a carrier tape that can form a feed hole with excellent positional accuracy with respect to a recessed portion (first recessed portion) that can accommodate an electronic component, a manufacturing method thereof, and A package of the carrier tape.

1‧‧‧ transport belt

10‧‧‧ Sheet

11‧‧‧Feed hole

12‧‧‧ 1st recess

13‧‧‧ second side

14‧‧‧ Margin

15‧‧‧Part 1

16‧‧‧ 2nd recess

17‧‧‧ punch

18‧‧‧ margin

20‧‧‧ Cover tape

40‧‧‧Electronic parts

100‧‧‧ package

110‧‧‧contact roller

120‧‧‧cooling roller

130‧‧‧ rear cooling roller

140‧‧‧ rear cooling roller

150‧‧‧ molten sheet

151‧‧‧sheet

155‧‧‧ making sheet for carrier tape

156‧‧‧Roller

170‧‧‧contact roller

180‧‧‧ contact roller

190‧‧‧tension roller

200‧‧‧The first mold department

201‧‧‧ protrusion

210‧‧‧The second mold department

211‧‧‧ protrusion

220‧‧‧Forming mold

300‧‧‧Seamless Conveyor Belt

310‧‧‧Seamless Conveyor Belt

500‧‧‧ Sheet manufacturing device for making carrier tape

600‧‧‧T-type die

601‧‧‧ opening

700‧‧‧ Nozzle

701‧‧‧ opening

800‧‧‧forming department

900‧‧‧ Punching Die

910‧‧‧punching head

920‧‧‧The first substrate

921‧‧‧Punching tools

922‧‧‧ protrusion

923‧‧‧Position control guide

930‧‧‧ 2nd substrate

931‧‧‧Guide Pin

932‧‧‧Position correction guide

933‧‧‧Spring material

935‧‧‧circle

936‧‧‧circle

940‧‧‧Pressed plate

950‧‧‧Support Desk

951‧‧‧3rd substrate

952‧‧‧bearing board

A-A‧‧‧ hatching

C‧‧‧thickness

E-E‧‧‧ hatching

F1‧‧‧ size

F2‧‧‧ size

F3‧‧‧ size

F4‧‧‧ size

G‧‧‧ size

J‧‧‧ Depth

K‧‧‧ thickness

L‧‧‧Width

M‧‧‧ length

N‧‧‧Width

P‧‧‧length

PC1‧‧‧ Center

pk1‧‧‧circle

PK1‧‧‧center

PK11‧‧‧Coordinates

Coordinates PK12‧‧‧

pk2‧‧‧circle

PK2‧‧‧center

PK21‧‧‧Coordinates

Coordinates PK22‧‧‧

pk3‧‧‧circle

PK3‧‧‧center

PK31‧‧‧Coordinates

Coordinates PK32‧‧‧

pk4‧‧‧circle

PK4‧‧‧center

PK41‧‧‧Coordinates

PK42‧‧‧Coordinates

Coordinates of PP1‧‧‧

Coordinates of PP2‧‧‧

Coordinates PP3‧‧‧

Coordinates of PP4‧‧‧

PP41‧‧‧Intersection

PP42‧‧‧Intersection

PQ1‧‧‧ Coordinates

PQ2‧‧‧ Coordinates

PQ3‧‧‧ Coordinates

PQ4‧‧‧ Coordinates

PR11‧‧‧Coordinates

pr11‧‧‧circle

Coordinates of PR12‧‧‧

pr12‧‧‧circle

pr13‧‧‧circle

Coordinates of PR13‧‧‧

pr14‧‧‧circle

Coordinates of PR14‧‧‧

Coordinates of PR2‧‧‧

Coordinates of PR3‧‧‧

Coordinates of PR4‧‧‧

PS1‧‧‧ Coordinates

PS2‧‧‧ Coordinates

PS3‧‧‧ Coordinates

PS4‧‧‧ Coordinates

Q‧‧‧Width

R‧‧‧ inside diameter

S‧‧‧ outer diameter

T‧‧‧ outer diameter

U‧‧‧Max

V‧‧‧Position deviation

W‧‧‧Position deviation

X‧‧‧axis

Y‧‧‧axis

A‧‧‧ angle

B‧‧‧ angle

Γ‧‧‧ depth

△ ‧‧‧ Depth

E‧‧‧Maximum amount of position control

Θ‧‧‧ angle

Λ‧‧‧ angle

ψk1‧‧‧angle

ψk2‧‧‧angle

ψk3‧‧‧ angle

ψk4‧‧‧ angle

ψp‧‧‧angle

ψr11‧‧‧angle

ψr12‧‧‧angle

ψr13‧‧‧angle

ψr14‧‧‧angle

Ωp‧‧‧rotation angle

ωr11‧‧‧angle

ωr12‧‧‧angle

ωr13‧‧‧angle

ωr14‧‧‧angle

Fig. 1 is a partial perspective view showing a first structural example of a package of the present invention.

[FIG. 2] A sectional view taken along line A-A in FIG. 1. [FIG.

3 is a cross-sectional view taken along a line B-B in FIG. 1.

[Fig. 4] (a) to (c) are plan views showing a carrier tape for electronic component storage provided in the package of Fig. 1. [Fig.

Fig. 5 is a partial perspective view showing the production of a sheet for a carrier tape.

6 is a cross-sectional view taken along a line A-A in FIG. 5.

7 is a cross-sectional view taken along a line B-B in FIG. 5.

[Fig. 8] Fig. 8 is a perspective view showing a first embodiment of a device for manufacturing a carrier tape sheet used in a method for manufacturing a sheet for a carrier tape according to the present invention.

9 is an end view in the direction of C in FIG. 8.

[Fig. 10] (a) to (b) are plan views showing the positional relationship between each member and the sheet provided in the sheet manufacturing apparatus for producing a carrier tape shown in Fig. 8. [Fig.

[Fig. 11] (a) to (c) are plan views illustrating a method for producing a sheet for a carrier tape using the sheet producing device for producing a carrier tape shown in Fig. 8.

[Fig. 12] (a) to (d) are cross-sectional views illustrating a method for manufacturing a sheet for a carrier tape using the sheet manufacturing apparatus for making a carrier tape shown in Fig. 8.

[Fig. 13] (a) to (c) are cross-sectional views illustrating a method for producing a sheet for a carrier tape using the sheet producing apparatus for producing a carrier tape shown in Fig. 8.

[Fig. 14] (a) to (d) are cross-sectional views illustrating a method for producing a sheet for a carrier tape using the sheet producing device for producing a carrier tape shown in Fig. 8.

[Fig. 15] (a) to (b) are cross-sectional views illustrating a method for producing a sheet for a carrier tape using the sheet producing device for producing a carrier tape shown in Fig. 8.

[FIG. 16] (A1) to (A3), (B1) to (B3) are cross-sectional views showing a positional relationship between a position control guide and a second recessed portion.

[FIG. 17] (A1) to (A3), (B1) to (B3) are cross-sectional views showing a positional relationship between a position correction guide and a second recessed portion.

[FIG. 18] (A1) to (A2), (B1) to (B2) are cross-sectional views showing a positional relationship between a guide pin and a feed hole.

19 is a plan view showing a positional relationship between each member and a sheet included in the sheet manufacturing apparatus for producing a carrier tape shown in FIG. 8.

20 is a plan view showing a positional relationship between a guide pin and a feed hole.

21 (a) to (d) are plan views showing the positional relationship between the feed hole and the first recessed portion.

22 is a plan view showing a positional relationship between a position correction guide and a second recessed portion.

23 is a partial perspective view of an embodiment of a conventional punching carrier tape.

24 is a cross-sectional view taken along a line D-D in FIG. 23.

25 is a cross-sectional view taken along a line E-E in FIG. 23.

FIG. 26 is a partial perspective view of an embodiment of a conventional imprint carrier tape.

[FIG. 27] A sectional view along line F-F in FIG. 26. [FIG.

[FIG. 28] A sectional view taken along the line G-G in FIG. 26. [FIG.

FIG. 29 is a partial perspective view showing a second structural example of the package of the present invention.

30 is a cross-sectional view taken along a line H-H in FIG. 29.

[FIG. 31] A sectional view taken along the line J-J in FIG. 29. [FIG.

32 is a partial perspective view showing a third structural example of the package of the present invention.

[Fig. 33] A sectional view taken along the line K-K in Fig. 32. [Fig.

[FIG. 34] A sectional view along line L-L in FIG. 32. [FIG.

[Fig. 35] Fig. 35 is a longitudinal sectional view showing a second embodiment of a sheet manufacturing apparatus for a carrier tape used in a method for manufacturing a sheet for a carrier tape of the present invention.

[Fig. 36] Fig. 36 is a longitudinal sectional view showing a third embodiment of the manufacturing apparatus for manufacturing a carrier tape sheet used in the manufacturing method for manufacturing a carrier tape sheet according to the present invention.

[Fig. 37] Fig. 37 is a longitudinal sectional view showing a fourth embodiment of the apparatus for manufacturing a carrier tape sheet used in the method for manufacturing a carrier tape sheet according to the present invention.

[Fig. 38] Fig. 38 is a longitudinal cross-sectional view showing a fifth embodiment of the manufacturing apparatus for manufacturing a carrier tape sheet used in the manufacturing method for manufacturing a carrier tape sheet according to the present invention.

[Fig. 39] Fig. 39 is a longitudinal sectional view showing a sixth embodiment of a device for producing a sheet for a carrier tape used in a method for producing a sheet for a carrier tape of the present invention.

[Fig. 40] Fig. 40 is a longitudinal sectional view showing a seventh embodiment of a sheet manufacturing apparatus for a carrier tape used in a method for manufacturing a sheet for a carrier tape of the present invention.

[Fig. 41] Fig. 41 is a longitudinal sectional view showing an eighth embodiment of the manufacturing apparatus for manufacturing a carrier tape sheet used in the manufacturing method for manufacturing a carrier tape sheet according to the present invention.

42 is a longitudinal sectional view showing a ninth embodiment of the apparatus for manufacturing a sheet for a carrier tape used in the method for manufacturing a sheet for a carrier tape of the present invention.

[Fig. 43] Fig. 43 is a longitudinal sectional view showing a tenth embodiment of the apparatus for manufacturing a sheet for a carrier tape used in the method for manufacturing a sheet for a carrier tape of the present invention.

[Fig. 44] A longitudinal sectional view showing an eleventh embodiment of a manufacturing apparatus for manufacturing a carrier tape sheet used in the manufacturing method for manufacturing a carrier tape sheet according to the present invention.

[FIG. 45] A longitudinal sectional view showing a twelfth embodiment of the apparatus for manufacturing a sheet for a carrier tape used in the method for manufacturing a sheet for a carrier tape of the present invention.

[Fig. 46] Fig. 46 is a longitudinal sectional view showing a thirteenth embodiment of the manufacturing apparatus for manufacturing a carrier tape sheet used in the manufacturing method for manufacturing a carrier tape sheet according to the present invention.

[Fig. 47] Fig. 47 is a longitudinal sectional view showing a fourteenth embodiment of the manufacturing apparatus for manufacturing a carrier tape sheet used in the manufacturing method for manufacturing a carrier tape sheet according to the present invention.

Hereinafter, a sheet for a carrier tape, a method for producing a sheet for a carrier tape, and a packaging body according to the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.

First, before describing the sheet for the carrier tape and the method for producing the sheet for the carrier tape of the present invention, first, a package of the present invention (a package obtained by using the sheet for the carrier tape of the present invention) Body).

<Package body>

<< First Structure Example >>

FIG. 1 is a partial perspective view showing a first structural example of a package of the present invention. Fig. 2 is a sectional view taken along the line A-A in Fig. 1. Fig. 3 is a sectional view taken along the line B-B in Fig. 1. FIG. 4 is a plan view showing an electronic component storage carrier tape included in the package of FIG. 1. In the following description, the upper side in FIGS. 1 to 3 is referred to as “upper”, the lower side is referred to as “down”, the front side of the paper in FIG. 4 is referred to as “upper”, and the rear side of the paper surface is referred to as "under". In addition, in FIG. 1, in order to show the electronic component accommodated in the 1st recessed part of the carrier tape provided in the package body, any part of the upper cover tape provided in the package body is removed. In addition, in order to show the inside of the first recess more clearly, the electronic component is omitted from the front pocket.

The package 100 includes an electronic component storage carrier tape (hereinafter also simply referred to as a “carrier tape”) 1 including a first recessed portion (recession for electronic component storage; pocket) 12 that stores the electronic component 40; and a packaged carrier tape. The upper cover tape (hereinafter also simply referred to as the “cover tape”) 20 of the opening of the first recessed portion 12 of 1.

The carrier tape 1 shown in FIGS. 1 to 3 is made of a resin sheet, and is made of a belt-shaped sheet 10. The first surface 15 on the upper side of the carrier tape 1 includes a plurality of first recessed portions 12 arranged in a row along the longitudinal direction thereof, and a plurality of first recessed portions 12 arranged in parallel to the plurality of first recessed portions 12. The plurality of feeding holes 11.

In addition, in this embodiment, the second surface 13 on the opposite side (lower side) of the first surface 15 of the carrier tape 1 is formed to be almost flat.

In other words, in this embodiment, the carrier tape 1 includes a bottomed first recessed portion 12 that is open to the first surface 15 side, and a feed hole 11 penetrating the first surface 15 and the second surface 13. The second surface 13 is a flat surface having substantially no height difference with respect to the bottom of the first concave portion 12 and the vicinity of the outer peripheral portion thereof.

As shown in FIG. 1, a plurality of first recesses 12 are provided at regular intervals along the long side direction of the band-shaped sheet 10 so as to be aligned in a row on the first surface 15. The first recessed portions 12 have a structure capable of accommodating each of the electronic components 40.

In addition, in this embodiment, as shown in FIGS. 1 and 2, the overall shape of the electronic component 40 is a rectangular parallelepiped. The shape of the first recessed portion 12 accommodating the electronic component 40 also has a rectangular parallelepiped shape corresponding to the overall shape of the electronic component 40. Therefore, the first recessed portion 12 has a rectangular shape in plan view, but may have a polygonal shape such as a triangle, a pentagon, or a hexagon, or a circular shape according to the shape of the electronic component 40 to be stored.

In addition, in order to improve the pick-up efficiency and the like of the electronic component suction nozzle, a convex strip or a concave strip may be formed on the inner peripheral surface of the first concave portion 12 along the thickness direction of the carrier tape 1.

Furthermore, a step may be provided on the bottom surface of the first recessed portion 12. Accordingly, for example, when a member such as a terminal is formed on the bottom surface of the electronic component 40, the terminal can be prevented from contacting the bottom surface of the first recessed portion 12. Therefore, it is possible to reliably prevent members such as terminals from being damaged when the carrier tape 1 is being conveyed.

As shown in FIGS. 1 and 2, the plurality of feeding holes 11 are arranged side by side at a regular interval so as to form a parallel row with the plurality of first concave portions 12. These feeding holes 11 are used when feeding the electronic components 40 stored in the first recessed portion 12 to the surface mounting machine.

In addition, when the width of the feeding hole 11 in the short-side direction of the carrier tape 1 is 8 mm, the average inner diameter thereof should be set to about Φ 1.5 to 1.6 mm, and more preferably set to Φ 1.5 to 1.55 mm. about. In the case where the width of the short-side direction of the carrier tape 1 is 4 mm, the average inner diameter of the size of the feed hole 11 should be set to about 0.76 to 0.84 mm, and more preferably set to about 0.78 to 0.82 mm. Thereby, the feeding of the package 100 using the feed hole 11 to a surface mounter can be performed reliably.

In addition, the plurality of first recessed portions 12 and the plurality of feed holes 11 are arranged side by side along the longitudinal direction of the sheet 10, but the arrangement intervals of the first recessed portions 12 and the feed holes 11 are not particularly limited. For example, as shown in FIGS. 4 (a) and (b), two or more first recesses 12 may be arranged between the two feeding holes 11 in the long direction, or as shown in FIG. 4 (c). As shown in FIG. 1), a first concave portion 12 is arranged between the two feeding holes 11.

In addition, when the structure shown in FIG. 4 (a) is provided, the width of the short-side direction of the carrier tape 1 is 8 mm, the interval of the long-side direction of each feed hole 11 is 4 mm, and the interval of the first recesses 12 is Structure (a1) of 2 mm; structure (a2) in which the width of the short-side direction of the carrier tape 1 is 8 mm, the interval in the long-side direction of each feed hole 11 is 2 mm, and the interval between the first recesses 12 is 1 mm; A structure in which the width in the short-side direction of the belt 1 is 4 mm, the interval in the long-side direction of each feed hole 11 is 2 mm, and the interval between the first recesses 12 is 1 mm (a3). F1 in each of the structures (a1), (a2), and (a3) should be set to 0 ± 0.05mm, and more preferably 0 ± 0.03mm. F2 in each structure (a1), (a2), and (a3) should be set to 2 ± 0.05mm, 1 ± 0.05mm, and 1 ± 0.05mm, and more preferably 2 ± 0.03mm and 1 ± 0.03mm, respectively. And 1 ± 0.03mm. G in each structure (a1), (a2), and (a3) should be set to 3.5 ± 0.05mm, 3.5 ± 0.05mm and 1.8 ± 0.05mm, more preferably set to 3.5 ± 0.03mm, 3.5 ± 0.03mm and 1.8 ± 0.03mm respectively.

In addition, when the structure shown in FIG. 4 (b) is provided, the width of the short-side direction of the carrier tape 1 is 8 mm, the interval of the long-side direction of each feed hole 11 is 4 mm, and the interval of the first recesses 12 is 1mm construction (b). F1 in the structure (b) should be set to 0 ± 0.05mm, and more preferably set to 0 ± 0.03mm. F2 in structure (b) should be set to 1 ± 0.05mm, more preferably 1 ± 0.03mm. F3 in structure (b) should be set to 2 ± 0.05mm, more preferably 2 ± 0.03mm. F4 in structure (b) should be set to 3 ± 0.05mm, more preferably 3 ± 0.03mm. G in the structure (b) should be set to 3.5 ± 0.05mm, and more preferably set to 3.5 ± 0.03mm.

When the structure shown in FIG. 4 (c) is used, the width of the short-side direction of the carrier tape 1 is 8 mm, the interval between the long-side directions of the feed holes 11 is 4 mm, and the interval between the first recesses 12 can be used. It is a 4mm structure (c). F2 in the structure (c) should preferably be set to 2 ± 0.05mm, and more preferably set to 2 ± 0.03mm. G in the structure (c) should be set to 3.5 ± 0.05mm, and more preferably set to 3.5 ± 0.03mm.

Among these structures, it is preferable to provide the structure (a1) or the structure (a3). This makes it possible to more surely feed the package 100 to the surface mounter using the feed hole 11.

The carrier tape 1 included in the packaging body 100 of the present invention is made of resin. By making the carrier tape 1 made of resin, when the electronic components 40 are fed to the surface mounting machine, fine powder such as paper powder is not generated from the body of the carrier tape 1. Therefore, it is possible to prevent poor solder joints of the electronic component 40 or adsorption of the electronic component. Mouth clogging occurs. Furthermore, it is possible to prevent a change in the size of the first recessed portion 12 due to fluff or moisture absorption in the first recessed portion 12. In addition, it is possible to prevent the charging caused by static electricity from occurring when the cover tape 20 is peeled off during mounting, thereby improving the pickup efficiency of the suction nozzle for electronic parts. Thereby, it can fully respond to cleaning treatment, and at the same time, it can improve the stability of the tape and the surface mounting, and improve the production efficiency.

In addition, when the carrier tape 1 is made of resin, the strength of the sheet 10 is increased compared to the case where it is made of paper or the like. This makes it possible to prevent the carrier tape 1 from being transported to the carrier tape 1 at the time of attaching or mounting the sheet 10 even when the thickness of the sheet 10 is thin in order to accommodate the electronic components 40 having a very low height. Deformation of the feeding hole 11 or breakage of the carrier tape 1 occurs. Thereby, it is possible to fully prevent the occurrence of a defect in the conveyance, and further improve the storage stability at the time of tape application or the pick-up efficiency at the time of installation.

The resin constituting the carrier tape 1 is not particularly limited, but examples thereof include polystyrene, polyethylene, polypropylene, polyester (polyethylene terephthalate), polycarbonate, and polyvinyl chloride. And various resins (such as various thermoplastic resins) such as polyamide, polyacetal, and polyacetal, and one or more of these resins are used in combination. In addition, conductive fillers such as carbon black, graphite, and carbon fiber may be mixed with these resins as needed. This makes it possible to impart conductivity to the carrier tape 1 and prevent electrification, so that static electricity can be prevented from damaging the electronic component 40. In addition, various additives such as a foaming agent and a lubricant may be added as required. Further, a release agent composed of a resin such as a silicone resin, a fluorine resin, or a conductive film may be formed on the surface of the carrier tape 1. The film structure of the sheet 10 of the carrier tape 1 may be a single-layer or multi-layer structure that satisfies these requirements.

In this embodiment, the first recessed portion 12 is formed on the first surface 15 of the carrier tape 1, and the second surface 13 on the opposite side of the first surface 15 of the carrier tape 1 is almost flat. That is, the second surface 13 is a flat surface having substantially no height difference with respect to the bottom of the first concave portion 12 and the vicinity of the outer peripheral portion thereof. Therefore, the carrier tape 1 can be used in the same manner as the punched carrier tape or the pressurized carrier tape even in the case of using an applicator or a mounting machine for the punched carrier tape or the pressurized carrier tape. By doing so, there is no need to invest in new equipment, etc., and price competitiveness can be improved. In addition, when the carrier tape 1 is wound around a reel for conveyance, the second surface 13 is almost flat, so that it is possible to prevent the winding from falling off or being loosened. This prevents deformation of the first recessed portion 12 and damage to the cover tape 20.

In addition, with these structures, it is possible to provide a carrier tape corresponding to a thinner electronic component. The depth of the first recessed portion 12 is appropriately set in accordance with the size of the electronic component 40 to be packaged. That is, since the electronic component 40 is housed in the internal space formed between the carrier tape 1 and the cover tape 20, in order to protect the electronic component 40 from being washed away or contaminated during storage or transportation, it is preferable to The first recessed portion 12 is designed so as to provide a slight clearance (for example, 0 to 0.3 mm) with respect to the height of the electronic component 40. If so, with the thinning of today's electronic parts, the sheet body also needs to be thinned. Therefore, there may be problems such as insufficient strength of the punched carrier tape and breakage. On the other hand, the carrier tape 1 does not need to reduce the thickness of the sheet 10 itself even if the depth of the first recessed portion 12 is reduced in accordance with the packaged electronic components 40. Therefore, the carrier tape 1 can be used with sufficient strength. In the case, it corresponds to a thin electronic part.

In addition, when the depth of the first recessed portion 12 is A (mm), the thickness of the bottom of the first recessed portion 12 of the carrier tape 1 is B (mm), and the thickness of the portion other than the recessed portion of the carrier tape 1 is C (mm) ), The first concave portion 12 starts with And the carrier belt 1 should be formed in a manner that almost meets A + B = C. The so-called almost satisfies A + B = C, for example, satisfies -0.1 <C- (A + B) <0.1, and more preferably satisfies -0.05 <C- (A + B) <0.05. By forming the first recessed portion 12 and the carrier tape 1 so as to satisfy these mathematical formulas, the second surface 13 can be made flatter, and it can be prevented from occurring when the carrier tape 1 is wound around a reel for storage or transportation. When the winding is loose or loose.

The depth A of the first recessed portion 12 is set in accordance with the height of the electronic component 40 to be packaged. When the height of the electronic component 40 is Z (mm), the depth A of the first concave portion 12 should satisfy 0 ≦ A-Z ≦ 0.3, and more preferably satisfy 0.05 ≦ A-Z ≦ 0.15. The relationship between the depth A of the first recessed portion 12 and the height Z of the electronic component 40 is within this preferred range, which can improve the storage stability during tape application or the pick-up efficiency during installation, and prevent the electronic component 40 from being damaged by the carrier tape 1. Damaged due to shock, contamination, etc. during storage or transportation. The thickness C of the portion other than the first recessed portion 12 of the carrier tape 1 and the thickness of the sheet 10 of the carrier tape 1 are almost unchanged. Here, the thickness of C is preferably 0.1 mm to 1.0 mm, and more preferably 0.2 mm to 0.5 mm. The thickness C is within this preferred range, which can improve the production efficiency of the carrier tape 1 and prevent problems such as deformation of the feed holes 11 of the carrier tape 1 or breakage of the carrier tape 1.

The size of the first recessed portion 12 is set in accordance with the size of the electronic component 40 to be packaged. When the size of the first recessed portion 12 is D (mm) × E (mm), and D ≦ E, the size of the electronic component 40 is X (mm) × Y (mm), and X ≦ Y, the The size and the size of the electronic component 40 should satisfy 0 <DX ≦ 0.3, 0 <EY ≦ 0.3, and more preferably 0.05 ≦ DX ≦ 0.15, 0.05 ≦ EY ≦ 0.15. The size of the first recessed portion 12 and the size of the electronic component 40 are within this preferable range, which can improve the storage during tape application. Stability or pick-up efficiency during installation can prevent the electronic component 40 from being damaged due to impact, contamination, and the like during storage or transportation of the carrier tape 1.

In addition, the carrier tape 1 has the second surface 13 as a reel (core material) side, and is stored and transported in a wound state. The diameter of the reel used at this time should be about 5 ~ 300mm, more preferably about 30 ~ 250mm.

Here, when the electronic component 40 accommodated in the first recessed portion 12 is a rectangular member as shown in FIG. 2, if the plan view size of the electronic component 40 is described in the aforementioned Y (mm) × X (mm) method, it is usually Electronic components 40 having dimensions of 0.6 mm × 0.5 mm, 0.6 mm × 0.3 mm, and 0.4 mm × 0.2 mm were used. Then, it is said that the size of 0.3mm × 0.15mm and 0.2mm × 0.1mm will be used in the future. Therefore, the first recessed portion 12 stores electronic components 40 having a size of Y (mm) of about 0.2 to 0.6 mm and X (mm) of about 0.1 to 0.5 mm.

In addition, the height Z (mm) of the electronic components 40 is usually set to about 0.1 to 0.35 mm.

When the diameter φ of the reel wound by the carrier tape 1 is F (mm), and at the time of winding, it is assumed that the opening portion side of the first recessed portion 12 (that is, the cover tape 20 side) is flat. The change amount G (mm) of the depth A of the recessed portion 12 was found by the present inventors to find that it can be expressed by the following formula (1). At this time, since the amount of change G (mm) acts to reduce the depth A of the first recessed portion 12, the substantial depth of the first recessed portion 12 is A-G (mm).

When the bottom side of the first recessed portion 12 is assumed to be flat during winding, the change amount H (mm) of the depth A of the first recessed portion 12 can be expressed by the following formula (2). At this time, since the amount of change H (mm) acts to increase the depth A of the first recessed portion 12, the substantial depth of the first recessed portion 12 is A + H (mm).

Then, if the above-mentioned formulas (1) and (2) are used, in a state where the electronic components 40 of these sizes are housed in the first recessed portion 12, the carrier tape 1 is wound around a diameter of 5 to 300 mm. The amount of change G and the amount of change H during reeling, the amount of change G and the amount of change H are in the range of 2.0 × 10 ^-5 to 1.33 × 10 ^-2 mm and 2.0 × 10 ^-5 to 1.46 × 10 ^-2 mm .

In addition, the plan view size of the first recessed portion 12 is 0.05 mm larger than the plan view size of the electronic component 40, and the thickness of the bottom of the first recessed portion 12 is 0.1 mm. The difference between the depth of the first recessed portion 12 and the height of the electronic component 40 A case where (AZ) is 0.15 mm is a representative example, and the change amount G and the change amount H are obtained.

Therefore, if the difference (AZ) between the depth of the first recessed portion 12 and the height of the electronic component 40 is set to a preferable range of 0.05 ≦ AZ ≦ 0.15 as described above, the change amount G and the change amount H are both worse than A -Z) is smaller. Therefore, even if the carrier tape 1 is wound on a reel having the diameters as described above, it is possible to reliably suppress or prevent the electronic component 40 from breaking through the cover tape 20 or causing the cover tape 20 to generate a wrinkle. Furthermore, since the winding of the carrier tape 1 with respect to the reel can be performed more strongly and stably, it is possible to reliably prevent the occurrence of the winding off or the slack.

The inner edge portion 14 of the first recessed portion 12 is preferably bent so that the radius of curvature is 0.2 mm or less, and more preferably 0.1 mm or less. By bending the first recessed portion 12 in such a manner, the linear portion of the side wall surface orthogonal to the bottom surface of the first recessed portion 12 can be enlarged even when the thin electronic component 40 is packaged. Thereby, the side wall surface of the recessed portion can be prevented from expanding from the bottom to the edge portion, so the storage stability of the electronic component 40 can be improved.

The cover tape 20 shown in FIGS. 1 and 2 is formed in a band shape. The cover tape 20 is bonded to the first surface 15 of the carrier tape 1 in a state where the electronic component 40 is housed in the first recessed portion 12.

By providing the above structure, the opening of the first recessed portion 12 can be sealed by the cover tape 20. In this case, the electronic component 40 can be stored in the first recessed portion 12 by using the package 100 including the carrier tape 1 and the cover tape 20.

This cover tape 20 can be made of resin similarly to the carrier tape 1. The resin constituting the cover tape 20 can be the same as those listed for the carrier tape 1.

The carrier tape 1 and the cover tape 20 can be joined by, for example, heat sealing. Heat sealing is performed along each edge of the long side of the cover tape 20 using a sealer. In addition, the carrier tape 1 and the cover tape 20 may be bonded using an adhesive instead of heat sealing.

In these packages 100, the cover tape 20 can be peeled from the carrier tape 1 by pulling the cover tape 20 along the longitudinal direction of the package 100, whereby the electronic component 40 can be taken out.

The package 100 is wound, stored, and transported with the second surface 13 as the reel (core material) side. This can save space during storage and transportation of the package 100.

<Making Sheet for Carrier Tape>

The packaging body 100 having the above structure can be produced by bonding the carrier tape 1 and the cover tape 20 as described above. The carrier tape 1 including the first recessed portion 12 and the feed hole 11 constituting the package 100 will be formed into a carrier tape sheet 155 including a plurality of first recessed portions 12 and a plurality of The feed holes 11 are made by cutting (cutting) a predetermined width.

Hereinafter, the sheet for manufacturing a carrier tape (sheet for manufacturing a carrier tape of the present invention) 155 will be described.

Fig. 5 is a partial perspective view showing the production of a sheet for a carrier tape. Fig. 6 is a sectional view taken along the line A-A in Fig. 5. Fig. 7 is a sectional view taken along the line B-B in Fig. 5. In the following description, the upper side in FIGS. 5 to 7 is referred to as “upper”, and the lower side is referred to as “lower”.

The sheet for producing a carrier tape shown in FIGS. 5 to 7 (hereinafter also simply referred to as a “sheet for production”) 155 is composed of a sheet-like sheet 151 and is made of resin. The sheet 155 for producing a carrier tape has a plurality of first recessed portions 12 formed on the first surface 15 side and arranged along the longitudinal direction thereof, and a plurality of feed holes 11 arranged in parallel with the plurality of first recessed portions 12; And a plurality of second recessed portions (position correction recessed portions) 16 arranged in parallel with the plurality of first recessed portions 12. That is, the manufacturing method of the sheet for the carrier tape of the present invention is characterized by having a plurality of second recesses 12 and a plurality of feeding holes 11 arranged along the longitudinal direction of the sheet 151, and a plurality of second holes Concave portion (concave portion for position correction) 16.

In addition, in this embodiment, the second surface 13 opposite to the first surface 15 of the carrier tape sheet 155 is produced to be almost flat.

As shown in FIG. 5, the plurality of first concave portions 12 are provided at regular intervals so as to be aligned in two rows on the first surface 15 along the long-side direction of the band-shaped sheet 151. In addition, two rows of the plurality of first concave portions 12 are provided along the longitudinal direction so as to be parallel to each other. In addition, as shown in FIG. 5, the plurality of feeding holes 11 are provided at regular intervals so as to be parallel to the arrangement of the plurality of first recessed portions 12 and arranged in two rows on the first surface 15. In addition, a plurality of feed holes 11 in two rows are provided along the long side direction in parallel to each other. Further, as shown in FIG. 5, the plurality of second recessed portions 16 are arranged at regular intervals so as to be parallel to the arrangement of the plurality of first recessed portions 12 and arranged in two rows on the first surface 15. In addition, a plurality of second recessed portions 16 in two rows are provided along the longitudinal direction so as to be parallel to each other.

Further, the arrangement of the plurality of first recesses 12 side by side along the long side direction and the arrangement of the plurality of feed holes 11 side by side along the long side direction are parallel to each other along the production carrier tape. The short sides of the sheets 155 are alternately arranged. Then, the arrangement of the plurality of second recesses 16 side by side along the long side direction is to sandwich the arrangement of the plurality of first recesses 12 side by side along the long side direction and the plurality of feeds side by side along the long side direction. The arrangement of the holes 11 is arranged parallel to the arrangement of the plurality of first recessed portions 12 side by side in the longitudinal direction on the end side in the short-side direction of the production sheet 155.

Forming the carrier tape sheet 155 having the above-mentioned structure so that the plurality of first recesses 12 in one row and the plurality of feed holes 11 in one row are a pair, and the arrangement of the plurality of second recesses 16 is eliminated, The production sheet 155 is cut to a predetermined width along the longitudinal direction of the production sheet 155. Thereby, two carrier tapes 1 were obtained. More specifically, the production sheet 155 has two portions (removed portions) that can be removed by cutting along the longitudinal direction of the production sheet 155 at both end portions in the short-side direction, 2 A plurality of second concave portions 16 in a row are formed in each removed portion (cut portion). By cutting (cutting) the production sheets 155 along the three imaginary lines shown in FIG. 5, two pieces of the first recesses 12 and one piece of the plurality of pieces having one line can be manufactured. The feed holes 11 are a pair of carrier tapes 1.

The present invention is characterized in that the sheet 155 for producing a carrier tape includes a second recessed portion (a recessed portion for position correction) 16. Specifically, the second recessed portion 16 is used to provide a plurality of feed holes 11 in parallel to the plurality of first recessed portions 12 in a manufacturing method of a carrier tape sheet 155 described later. That is, the second recessed portion 16 is used to provide the feeding hole 11 with excellent position accuracy with respect to the first recessed portion 12.

When the depth of the second recessed portion 16 is J (mm), the thickness of the bottom of the second recessed portion 16 of the carrier sheet 155 is K (mm), and the first recessed portion and the second of the manufacturing sheet 155 are formed. When the thickness of the portion other than the recessed portion is C (mm), the second recessed portion 16 is preferably formed so as to almost satisfy J + K = C. The so-called almost satisfies J + K = C, for example, satisfies -0.1 <C- (J + K) <0.1, and more preferably satisfies -0.05 <C- (J + K) <0.05. By satisfying this formula, the second surface 13 can be made flatter, and it is possible to prevent the roll-off or slack from occurring when the production sheet 155 is wound on a reel for storage or transportation.

The depth J of the second recessed portion 16 is changed by the thickness C of the portion other than the first recessed portion 12 and the second recessed portion 16 in which the sheet 155 for a carrier tape is produced. The depth J of the second concave portion 16 should satisfy C-0.15 ≦ J ≦ C-0.05, and more preferably satisfy C-0.13 ≦ J ≦ C-0.07. By setting the depth J of the second recessed portion 16 to be within this preferable range, the position correction guide and the position control guide can be stored in the second recessed portion 16 in the manufacturing method of the manufacturing sheet 155, and It is possible to reliably prevent the second recessed portion 16 from being broken and broken when the members are stored.

The inner edge portion 18 of the second recessed portion 16 is preferably bent so that the radius of curvature is 0.2 mm or less, and more preferably 0.1 mm or less. The second recessed portion 16 is provided with such a structure, and the linear portion of the side wall surface orthogonal to the bottom surface of the second recessed portion 16 can be enlarged. Thereby, since the side wall surface of the second recessed portion 16 can be prevented from expanding from the bottom to the edge portion, the position correction guide and the position control guide can be reliably housed in the second recessed portion 16.

In addition, by making the sheet 155 for the carrier tape to be wound, stored, and conveyed with the first surface 15 or the second surface 13 as the reel (core material) side, the production sheet 155 can be saved during storage. Time and space during transportation. In addition, the diameter of the reel used at this time should be about 5 ~ 300mm, more preferably 30 ~ 250mm about. Thereby, the space for the production sheet 155 during storage and transportation can be saved, and the winding can be used to reliably suppress or prevent the first recessed portion 12, the second recessed portion 16, and the feeding hole 11 from being deformed accidentally.

In addition, in the present embodiment, in the production of the carrier tape sheet 155, the plurality of first recesses 12 in two rows are provided along the longitudinal direction so as to be parallel to each other. Then, a plurality of feeding holes 11 in two rows are provided along the longitudinal direction in a parallel manner. Here, the manufacturing sheet 155 which can manufacture two carrier tapes 1 from this manufacturing sheet 155 is demonstrated as an example, However, the manufacturing sheet 155 is not limited to these structures. For example, two rows of the first recessed portions 12 may be arranged, and then one row of the plurality of feed holes 11 may be arranged, and one carrier tape 1 may be manufactured from the production sheet 155. Furthermore, the arrangement of the plurality of first recesses 12 may be arranged in parallel with each other in three or more rows along the longitudinal direction, and then the arrangement of the plurality of feed holes 11 may be arranged in parallel with each other along the longitudinal direction. Three or more rows, and three or more carrier tapes 1 are manufactured from the production sheet 155.

<A sheet manufacturing apparatus for producing a carrier tape>

<< First Implementation Aspect >>

The carrier tape sheet 155 structured as described above can be produced by applying the manufacturing method for producing a carrier tape sheet of the present invention. Hereinafter, a sheet manufacturing apparatus for manufacturing a carrier tape used in the manufacturing method of manufacturing the carrier tape sheet 155 will be described first.

Hereinafter, a first embodiment of the sheet manufacturing apparatus for manufacturing a carrier tape will be described. FIG. 8 is a perspective view showing a first embodiment of the manufacturing apparatus for manufacturing a carrier tape sheet used in the manufacturing method for manufacturing a carrier tape sheet according to the present invention. FIG. 9 is an end view in the C direction of FIG. 8. In the following description, The upper side in FIG. 8 is called "upper", and the lower side is called "lower". In addition, in FIG. 9, for convenience of explanation, a punching die included in the sheet manufacturing apparatus for producing a carrier tape is shown as a cross-sectional view taken along a line D-D in FIG. 8.

The sheet manufacturing apparatus 500 for manufacturing a carrier tape shown in FIGS. 8 and 9 includes a sheet supply section (T-die) 600, a forming section 800, and a punching section including a punching die 900.

The sheet supply unit in this embodiment is formed of a T-die 600 connected to an extruder (not shown) and a molten resin ejection unit of the extruder. With this T-die 600, a molten sheet or sheet-shaped molten sheet (sheet) can be supplied to the forming section 800.

The T-die 600 is an extrusion-molded part (feed-out forming part) that extrudes the molten sheet 150 in a molten state or a softened state by a press-forming method (extruder) to form a band-shaped sheet. The T-die 600 is filled with a molten resin in which the resin constituting the carrier tape 1 (making the carrier tape sheet 155) is in a molten state, and the molten resin is removed from the opening provided in the T-die 600. The portion 601 is extruded, and the molten sheet 150 in a molten state or a softened state that forms a band-shaped sheet is continuously fed out. With the structure in which the molten sheet 150 is produced by the extrusion molding method as described above, the thickness of the sheet of the carrier tape 1 formed can be stabilized.

The forming section 800 includes a contact roller 110, a cooling roller 120, and rear-stage cooling rollers 130 and 140. These rollers are each configured to be individually rotated by a motor (drive mechanism) not shown in the figure. By rotating the rollers, the sheet 151 is continuously fed out. By continuously melting the sheet 150 After being fed into the forming portion 800, the first recessed portion 12 and the second recessed portion 16 can be formed on the first surface 15 side of the molten sheet 150, and the second surface 13 of the molten sheet 150 can be planarized.

The cooling roller (first roller) 120 includes a cooling mechanism that cools the molten sheet 150 supplied from the T-die 600 in a molten state, and a forming die 220 that includes a first die portion 200 on the outer peripheral surface, It has a protrusion 201 for forming the first recessed portion 12, and a second mold part 210 with a protrusion 211 for forming the second recessed portion 16.

In this embodiment, the first mold part 200 included in the molding die 220 has a plurality of protrusions 201 provided at regular intervals in the peripheral direction of the outer peripheral surface of the cooling roller 120. The second mold portion 210 included in the molding die 220 includes a plurality of protrusions 211 provided at regular intervals in the peripheral direction of the outer peripheral surface of the cooling roller 120. The first mold part 200 and the second mold part 210 having such structures are provided in pairs on the outer peripheral surface of the cooling roller 120, respectively. In addition, the first mold portion 200 and the second mold portion 210 are arranged such that two first mold portions 200 are on the center portion side, and two second mold portions 210 are on the edge portion side and sandwiched by two second mold portions 210. The two first mold sections 200 are held. When the molten sheet 150 is pressed against the cooling rollers 120, the first recessed portion 12 and the second recessed portion 16 can be formed on the first surface 15, and the molten sheet 150 can be cooled at the same time.

The contact roller (second roller) 110 is a roller having a smooth outer peripheral surface, and is opposed to the cooling roller (first roller) 120. By supplying the molten sheet 150 between the contact rollers 110 and the cooling rollers 120, the second surface 13 of the molten sheet 150 can be flattened. In addition, by uniformizing the gap width between the contact roller 110 and the cooling roller 120, the thickness of the molten sheet 150 can be uniformed, and the first concave portion 12 and the second concave portion on the first surface 15 can be increased. Formability of 16.

Each of the rear-stage cooling rollers 130 and 140 is provided with a cooling mechanism for cooling the molten sheet 150 and is disposed at the rear stage of the contact roller 110 and the cooling roller 120. In addition, in this embodiment, the rear-stage cooling roller 140 is disposed at a later stage than the rear-stage cooling roller 130. More specifically, the rear-stage cooling roller 130 and the cooling-roll 120 are arranged to face each other, and then the rear-stage cooling roller 140 and the rear-stage cooling roll 130 are arranged to face each other. By supplying the molten sheet 150 to the subsequent-stage cooling rollers 130 and 140, the molten sheet 150 can be cooled more reliably.

In addition, in this embodiment, the contact roller 110, the cooling roller 120, and the rear-stage cooling rollers 130 and 140 are arranged such that the centers of the rollers are positioned on a straight line. By arranging the rollers in this manner, the cooling roller 120 can be brought into contact with the first surface 15 of the molten sheet 150 until the cooling roller 120 rotates 180 °, and the rear cooling roller 130 and the second surface 13 of the molten sheet 150 can be made to abut. The abutment is performed until the rear-stage cooling roller 130 rotates 180 °, and then the rear-stage cooling roller 140 abuts against the first surface 15 of the molten sheet 150 until the rear-stage cooling roller 140 rotates 90 °. Thereby, since the cooling sheet 120, 130, 140 and the first surface 15 and the second surface 13 of the molten sheet 150 are alternately abutted, the molten sheet 150 is cooled, so that it can be reliably prevented The molten sheet 150 is cooled in a state where warpage occurs on the first surface 15 or the second surface 13 side.

By supplying the molten sheet 150 between the cooling roller 120 and the contact roller 110 in the forming portion 800, the first concave portion 12 and the second concave portion 16 can be formed on the first surface 15 side, and the second surface 13 can be formed. flattened.

In addition, by supplying the molten sheet 150 passing between the cooling roller 120 and the contact roller 110 between the cooling roller 120 and the rear cooling roller 130, and then between the rear cooling roller 130 and the rear cooling roller 140, The molten sheet 150 may be cooled.

In addition, in this embodiment, the case where the cooling roller 120 has a cooling mechanism and the contact roller 110 does not have a cooling mechanism is described, but it is not limited to these cases, as long as at least one of the cooling roller 120 and the contact roller 110 is provided. One side may have a cooling mechanism, and the contact roller 110 may have a cooling mechanism, while the cooling roller 120 does not have a cooling mechanism, or both the cooling roller 120 and the contact roller 110 may have a cooling mechanism.

The punching section is composed of a punch (not shown), a sheet conveying device (not shown), and a punching die 900. This punching die 900 has a support table 950 that supports (places) the sheet 151 supplied from the forming section 800, and a punching head 910 that penetrates the sheet 151 to form a feed on the sheet 151 Hole 11. The sheet material 151 is fed into the punching die 900, whereby the feed holes 11 penetrating the first surface 15 and the second surface 13 of the sheet material 151 are formed with excellent positional accuracy.

The punching head 910 includes: a first base body 920; a second base body 930 arranged on the upper side of the first base body 920; a pressing plate (baffle plate) 940 arranged on the lower side of the first base body 920; The position control guide 923 and the position correction guide 932 of the second recessed portion 16 are provided; the guide pin 931 that controls the position of the feed hole 11 formed by the sheet 151 with the front end portion; and is formed on the sheet 151 The punching tool 921 of the feed hole 11.

The first base body 920 has a rectangular parallelepiped shape as a whole. A through hole penetrating in the vertical direction (thickness direction) is provided at a central portion thereof, and a through hole penetrating in the vertical direction is provided at both ends in the longitudinal direction. The first substrate 920 is arranged such that the longitudinal direction of the first substrate 920 coincides with the conveyance direction (traveling direction) of the sheet 151. Then, among the plurality of through holes, a punching tool 921 is arranged in the through hole in the central portion, and a position control guide 923 is inserted into each of the through holes at both ends.

The second base body 930 is disposed above the first base body 920 and has a rectangular parallelepiped shape as a whole. In addition, a plurality of holes are formed in the bottom surface of the second base 930 to form openings. The guide pin 931 and the position correction guide 932 are inserted through the hole portions so that their tip portions protrude. In addition, the guide pin 931 and the position correction guide 932 are inserted into the hole portions in a state where the base end portion is pressed by the spring material 933, respectively.

The punching tool 921 has a plurality of protrusions 922 and a plurality of through holes penetrating in the up-down direction. The plurality of protrusions 922 are arranged in a grid shape so as to protrude from the bottom surface of the punching tool 921 (in this embodiment, two in the vertical direction and six in the horizontal direction). The front ends of the position correction guide 932 and the guide pin 931 are respectively inserted into a plurality of through holes. The punching tools 921 penetrate the sheet 151 with the protrusions 922 to form the feed holes 11 penetrating the first surface 15 and the second surface 13.

The pressing plate 940 is disposed on the lower side of the first base body 920 and is composed of a plate-like plate material as a whole. Further, the pressing plate 940 has a plurality of through holes penetrating in the vertical direction. The position correction guide 932, the guide pin 931, and the protrusion 922 are respectively inserted into the through holes so that the front end portions thereof can protrude. By By pressing the sheet 151 supplied to the support table 950 with the pressing plates 940, it is possible to reliably prevent the positional deviation of the sheet 151 when the sheet 151 is penetrated by the punching tool 921.

The position control guide 923 is composed of a rod-shaped body having a quadrangular columnar shape as a whole. In addition, the position control guide 923 penetrates through holes provided at both end portions of the first base body 920, and a front end portion thereof protrudes from a bottom surface of the first base body 920. By using the position control guide 923 and inserting the front end of the position control guide 923 into the second recess 16 of the sheet 151 supplied to the support table 950, the position correction guide 932 can be used to control the sheet. Before the position of the second recessed portion 16 included in the material 151, the position of the sheet 151 is controlled, and the position accuracy of the feed hole 11 provided in the sheet 151 is surely improved.

The guide pin 931 is composed of a rod-shaped body having a radius reduced from the base end side to the front end side. In addition, the guide pin 931 is inserted into the hole portion of the second base body 930, the through hole of the punching tool 921, and the through hole of the pressing plate 940 in a state where the base end portion is pressed by the spring material 933. A front end portion of the guide pin 931 protrudes from a bottom surface of the pressing plate 940. By using the guide pin 931 and the front end portion thereof, the feed hole 11 formed by the sheet 151 supplied to the support table 950 can be inserted to control the position of the sheet 151, and the setting on the sheet can be reliably increased. Position accuracy of the feed hole 11 of the material 151.

The position correction guide 932 is formed of a rod-shaped body having a radius reduced from the base end side to the front end side. In addition, the position correction guide 932 is inserted into the hole portion of the second base body 930, the through hole of the punching tool 921, and the through hole of the pressing plate 940 in a state where the base end portion is pressed by the spring material 933. The front end portion of the position correction guide 932 protrudes from the bottom surface of the pressing plate 940. By using the position correction guide 932, the front end portion is inserted into the second recessed portion 16 provided in the sheet 151 supplied to the support table 950, and the Before the plate 940 presses the first surface 15 of the sheet 151, the position of the sheet 151 is controlled, and the position accuracy of the feed hole 11 provided in the sheet 151 is surely improved.

Among the position control guide 923, the guide pin 931, and the position correction guide 932, the guide pin 931 is located in the conveying direction of the sheet 151 with respect to the protrusion 922 of the punching tool 921 (traveling) Direction) (downstream side). In this embodiment, two sets of guide pins (that is, a total of four guide pins) are provided in such a manner that the two guide pins 931 are respectively inserted into the feeding holes 11 facing each other in the short-side direction of the sheet 151. 931.

In addition, the position correction guide 932 is located on the outside of both the downstream side and the upstream side of the conveyance direction of the sheet 151 with respect to the projection 922 included in the punching tool 921. In this embodiment, on the upstream side, two position correction guides 932 are provided so as to be inserted into the second recessed portions 16 facing each other in the short-side direction of the sheet 151, and on the downstream side, The two position correction guides 932 are provided so as to be respectively inserted into the second recessed portions 16 facing each other in the short-side direction of the sheet 151.

In addition, the position control guide 923 is located outside both the downstream side and the upstream side of the sheet 151 in the conveying direction with respect to the guide pin 931 and the position correction guide 932, that is, relative to the punching tool 921. The protrusions 922 are located outside both the downstream side and the upstream side in the conveyance direction of the sheet 151. In this embodiment, on the upstream side, two position control guides 923 are provided so as to be respectively inserted into the second recessed portions 16 facing each other in the short-side direction of the sheet 151, and on the downstream side, 2 The position control guides 923 are provided so as to be respectively inserted into the second recessed portions 16 facing each other in the short-side direction of the sheet 151.

In this embodiment, the position control guide 923, the guide pin 931, and the position correction guide 932 are used to form the first recess 12 for holding the carrier tape sheet 155. Position correction mechanism with position accuracy of the feeding hole 11.

The support base 950 includes a third base body 951 including a recessed portion, and a receiving plate 952 disposed in the recessed portion.

The third base 951 has a rectangular parallelepiped shape as a whole. A concave portion communicating with a through hole penetrating in the up-down direction (thickness direction) is provided in the center portion of the third base 951. A receiving plate 952 is arranged in the recess.

The receiving plate 952 has a plurality of through holes penetrating in the vertical direction. A plurality of through holes are respectively provided at positions corresponding to the protrusions 922 and the guide pin 931 of the punching tool 921 located on the upper side. When the sheet 151 is penetrated, the protrusions 922 and the guide pin 931 may be Insert the plurality of through holes.

In addition, in this embodiment, an embodiment in which protrusions 922 protruding in a grid shape from the bottom surface of the punching tool 921 are provided in two vertical and six horizontal directions is described. However, the number of the protrusions is not limited to this. Isomorphism. The number of the protrusions can be set to an arbitrary number in accordance with the number of rows of the plurality of feeding holes 11 provided for forming the carrier tape sheet 155 and the like.

<Manufacturing method for manufacturing sheet for carrier tape>

The aforementioned method for manufacturing a carrier tape sheet (the manufacturing method for manufacturing a carrier tape sheet according to the present invention) using the sheet manufacturing apparatus 500 for manufacturing a carrier tape described above can be used to produce the aforementioned A sheet 155 for a carrier tape is produced.

FIG. 10 is a plan view showing a positional relationship between each member and a sheet included in the sheet manufacturing apparatus for producing a carrier tape shown in FIG. 8. FIG. 11 is a plan view illustrating a method for manufacturing a sheet for a carrier tape using the sheet manufacturing device for a carrier tape shown in FIG. 8. 12 to 15 are cross-sectional views illustrating a method for manufacturing a sheet for a carrier tape using the sheet manufacturing apparatus for a carrier tape shown in FIG. 8. 16 is a cross-sectional view showing a positional relationship between a position control guide and a second recessed portion. 17 is a cross-sectional view showing a positional relationship between a position correction guide and a second recessed portion. 18 is a cross-sectional view showing a positional relationship between a guide pin and a feed hole. FIG. 19 is a plan view showing a positional relationship between each member and a sheet included in the sheet manufacturing apparatus for producing a carrier tape shown in FIG. 8. 20 is a plan view showing a positional relationship between a guide pin and a feed hole. FIG. 21 is a plan view showing a positional relationship between the feed hole and the first recessed portion. 22 is a plan view showing a positional relationship between a position correction guide and a second recessed portion. In the following description, the upper side in FIGS. 12 to 15 is referred to as "upper", and the lower side is referred to as "lower". 12 to 15 are cross-sectional views taken along the line AA in FIG. 10, and FIG. 12 (b) shows the vicinity of the front end portion of the position control guide 923 in an enlarged manner. The vicinity of the front end portion of the protrusion 922 included in the punching tool 921 is enlarged.

In this aspect, the manufacturing method of the carrier tape for storage of electronic parts includes: an extrusion step, which extrudes the molten sheet 150 in a molten state or a softened state forming a band-shaped sheet, and a forming step, which is performed in A first recessed portion 12 and a second recessed portion 16 are formed on the first surface 15 of the sheet 151; a cooling step that cools the sheet 151; and a punching step that processes the feed hole 11 on the sheet 151.

Hereinafter, each step will be described in detail.

[A] First, the molten sheet 150 in a molten state or a softened state forming a band-shaped sheet is extruded (extrusion step).

In this extrusion step, the molten resin in which the resin constituting the carrier tape 1 (making the carrier sheet 155) is in a molten state is connected from a molten resin ejection portion of an extruder (not shown). The opening portion 601 included in the T-die 600 is extruded, thereby continuously feeding the molten sheet 150 in a molten state or a softened state forming a band-shaped sheet.

In other words, the molten sheet 150 in a molten state or a softened state is extruded from the opening 601, and a film layer is formed by an extrusion molding method.

[B] Next, the first recessed portion 12 and the second recessed portion 16 are formed on the first surface 15 of the sheet 151 (forming step).

This forming step is performed by supplying the molten sheet 150 between the contact roller 110 and the cooling roller 120.

An outer peripheral surface (outer periphery) of the cooling roller 120 is provided with a forming die 220 having a first die portion 200 formed in a roller shape having a plurality of protrusions 201 and a second die portion 210 formed having a plurality of protrusions 211 Roller-shaped. A plurality of protrusions 201 are arranged at regular intervals along the peripheral direction of the cooling roller 120 Then, the plurality of protrusions 211 are arranged side by side so as to be parallel to the plurality of protrusions 201 in the short-side direction of the sheet 151 so as to be parallel to each other along the peripheral direction of the cooling roller 120. Therefore, on the first surface 15 of the molten sheet 150, the first recessed portions 12 corresponding to the shape of the protrusion 201 are formed plurally at regular intervals along the feeding direction of the sheet 151 (that is, the long side direction of the sheet 151). Then, the second recessed portions 16 corresponding to the shape of the protrusion 211 are parallel to the plurality of first recessed portions 12 in the short-side direction of the sheet 151, and are plurally spaced at regular intervals along the long-side direction of the sheet 151. form.

As described above, in this step [B], the first mold portion 200 having the protrusion 201 provided in the cooling roller 120 is used to form the first recessed portion 12; and the second mold portion 210 having the protrusion 211 is used to To form a second recessed portion 16.

Furthermore, since the outer peripheral surface of the contact roller 110 is formed into a roller shape having smoothness, the second surface 13 of the molten sheet 150 is flattened by pressing against the outer peripheral surface having smoothness.

In this manner, in this step [B], the contact roller 110 is used to flatten the second surface 13.

[C] Next, the sheet 151 is cooled (cooling step). This cooling step is performed by supplying the molten sheet 150 between the cooling roller 120 and the rear cooling roller 130 and then supplying the molten sheet 150 between the rear cooling roller 130 and the rear cooling roller 140.

Thereby, in the molten sheet 150, the first surface 15 of the molten sheet 150 abuts on the cooling roller 120 until the cooling roller 120 rotates 180 °, and the second surface 13 of the molten sheet 150 abuts on the subsequent cooling roller 130. ,straight Until the rear-stage cooling roller 130 rotates 180 °, the first surface 15 of the molten sheet 150 abuts on the rear-stage cooling roller 140 until the rear-stage cooling roller 140 rotates 90 °.

Here, in this embodiment, since the cooling roller 120, the rear cooling roller 130, and the rear cooling roller 140 are all provided with a cooling mechanism, as described above, the molten sheet 150 and each of the rollers 120, 130, and 140 The molten sheet 150 in contact (contact) with the first recessed portion 12 and the second recessed portion 16 formed on the first surface 15 is cooled. As a result, a sheet 151 in which the first concave portion 12 and the second concave portion 16 are formed on the first surface 15 can be obtained.

In addition, in this embodiment, the molten sheet 150 is cooled in a state where the first surface 15 and the second surface 13 of the molten sheet 150 alternately abut each of the cooling rollers 120, 130, and 140. Therefore, the molten sheet 150 can be reliably prevented from being cooled in a state where warpage occurs on the first surface 15 or the second surface 13 side.

As described above, in this step [C], each of the cooling rollers 120, 130, and 140 provided with a cooling mechanism is used to cool the molten sheet 150.

[D] Next, the sheet 151 on which the first recessed portion 12 and the second recessed portion 16 are formed is processed to form a feed hole 11 (punching step).

The sheet 151 is processed (punched) to produce the feeding hole 11 by using a punching die 900 included in the sheet manufacturing apparatus 500 for producing a carrier tape.

At this time, in the first punching and the second punching of the feed hole 11 of the sheet 151 by the punching die 900, the parts of the punching die 900 have different uses. Therefore, hereinafter, the first punching of the punching die 900 will be described first, and then the second punching will be described.

<< The first punching >>

First, the first punching of the feeding hole 11 of the sheet 151 by the punching die 900 is performed, that is, the first first shot of the sheet 151 is pressed with the punching tool 921. In the first punching, each part provided in the punching die 900 is arranged in the following manner corresponding to each part of the sheet 151 in which the first recessed part 12 and the second recessed part 16 are formed.

That is, as shown in FIG. 10 (a), when the sheet 151 is viewed from the upper side, the position correction guide 932 is positioned on the entrance side of the sheet 151 in the traveling direction of the projection 922 included in the punching tool 921. In a manner corresponding to each outer side on the exit side, the front end portion is inserted into the second recessed portion 16 so as to correspond to the second recessed portion 16.

In addition, the position control guide 923 is the outer side of the inlet side and the exit side of the sheet 151 of the position correction guide 932 in the traveling direction, that is, the sheet 151 of the protrusion 922 included in the punching tool 921. Each of the outer sides of the inlet side and the outlet side of the traveling direction is inserted into the second concave portion 16 in a manner corresponding to the second concave portion 16.

In addition, the guide pin 931 is positioned at the exit side of the sheet 151 in the traveling direction of the projection 922 included in the punching tool 921 and the position of the feed hole 11 formed by the second and subsequent punching of the sheet 151. In a corresponding manner, the front end portion thereof is brought into contact with the sheet 151.

Hereinafter, a method of forming the feed holes 11 using the punching die 900 in which the parts are arranged will be described in order.

[D-1a] First, as shown in FIG. 11 (a), the sheet 151 having the first recessed portion 12 and the second recessed portion 16 is formed from the entrance side (upstream side) of the sheet 151 in the traveling direction (conveying direction). ) Is conveyed to the exit side (downstream side), and the sheet 151 is further conveyed (supplied) to the support table 950, that is, between the support table 950 and the punching head 910 [see FIG. 12 (a)].

[D-2a] Next, the punching head 910 is moved downward with respect to the thickness direction of the sheet 151, that is, the position control guide 923 is moved downward with respect to the thickness direction of the sheet 151, whereby The tip portion of the position control guide 923 is inserted into the second recessed portion 16 [see FIG. 12 (b)]. Thereby, the position of the second recessed portion 16 is controlled by the position control guide 923.

Here, in this step, the front end portion of the position control guide 923 is inserted into the second recessed portion 16, and the shape of the front end portion of the position control guide 923 and the shape of the second recessed portion 16 have the following relationship, for example.

That is, first, for example, as shown in FIG. 16 (A1), when the length of the front end portion of the position control guide 923 is P (mm) and the width of the front end portion is Q (mm), the front end portion forms the front end portion. The width Q is a certain shape from the base end to the front end. In accordance with the shape, when the depth of the second recess 16 is J (mm), the thickness at the bottom is K (mm), and the width is L (mm). When the thickness of the recessed portion and portions other than the second recessed portion is C (mm), the width L of the second recessed portion 16 forming the second recessed portion 16 is constant in the depth (thickness) direction.

At this time, the shape of the front end portion of the position control guide 923 and the shape of the second recessed portion 16 should be formed to satisfy J <P, 0 <LQ ≦ 0.06, and more preferably to satisfy 0 <LQ ≦ 0.03. .

Then, when V = (LQ) / 2, as described later, the maximum amount of the position of the second recessed portion 16 controlled by the position correction guide 932 is U (mm), and the width of the front end portion of the position correction guide 932 When N (mm) and U = (LN) / 2, it should be formed by satisfying V <U and (LQ) / 2 <(LN) / 2, and then satisfying Q> N.

By forming the shape of the front end portion of the position control guide 923 and the shape of the second recessed portion 16 so as to satisfy the relationship, as shown in FIGS. 16 (A2) and (A3), the The front end portion of the position control guide 923 corresponding to its shape is inserted into the recessed portion 16, and the front end portion of the position correction guide 932 corresponding to its shape is housed in the second recessed portion 16 with better accuracy as described later. No position deviation occurs.

In addition, for example, as shown in FIG. 16 (B1), when the length of the front end portion of the position control guide 923 is P (mm) and the width of the front end portion is Q (mm), the width of the front end portion forming the front end portion Q is from A shape in which the base end becomes shorter (smaller) toward the front end. In a manner corresponding to the shape, when the depth of the second recess 16 is J (mm), the thickness of the bottom is K (mm), and the width is L (mm), When the thickness of the portion other than the first recessed portion and the second recessed portion is C (mm), the second recessed portion 16 has a shape in which the width L of the second recessed portion 16 becomes shorter toward the bottom side in the depth (thickness) direction.

At this time, when the angle formed by the central axis of the front end portion and the side surface of the front end portion is β (°), and the angle formed by the thickness direction of the sheet 151 and the inner peripheral surface of the second concave portion 16 is θ (°), The shape of the front end portion of the position control guide 923 and the shape of the second recessed portion 16 are preferably formed so as to satisfy β = θ, 10 ° ≦ θ ≦ 30 °, and satisfy L ≦ Q.

In addition, as shown in FIG. 16 (B2), when the front end portion of the position control guide 923 coincides with the first surface 15 of the sheet 151 in the thickness direction of the sheet 151, the center axis of the front end portion and the first When the positional deviation of the front end portion of the two recessed portions 16 is V (mm), V can be expressed by V = L / 2 + J × Tanθ-Q / 2 = J × Tanθ- (QL) / 2. At this time, the shape of the front end portion of the position control guide 923 and the shape of the second recessed portion 16 should preferably be formed so as to satisfy 0.03 <V <0.5.

Furthermore, as shown in FIG. 16 (B3), when the front end portion of the position control guide 923 is inserted into the second recessed portion 16 correspondingly, the depth (size) of the front end portion inserted into the second recessed portion 16 is δ (mm ), Δ can be expressed by δ = J- (QL) / (2 × Tanθ). At this time, the shape of the front end portion of the position control guide 923 and the shape of the second recessed portion 16 should preferably be formed so as to satisfy δ ≧ 0.15. In this case, when the magnitude of the positional deviation between the central axis of the second recessed portion 16 and the central axis of the position control guide 923 is V (mm), V can be expressed by V = 0.

By satisfying these relationships, as shown in FIGS. 16 (B2) and (B3), the front end portion of the position control guide 923 corresponding to the shape is inserted into the second recessed portion 16 as described later. The front end portion of the position correction guide 932 corresponding to its shape is accommodated in the second recessed portion 16 with better accuracy without positional deviation.

[D-3a] Next, the punching head 910 is moved further downward with respect to the thickness direction of the sheet 151, that is, the guide pin 931 is moved downward with respect to the thickness direction of the sheet 151, thereby The front end portion of the guide pin 931 is brought into contact with the first surface 15 of the sheet 151 [see FIG. 12 (c)].

At this time, since the guide pin 931 pushes the spring material 933 at the base end side portion, the guide pin 931 can be prevented from breaking through the first surface 15 of the sheet 151.

[D-4a] Next, the punching head 910 is further moved downward with respect to the thickness direction of the sheet 151, that is, the position correction guide 932 is moved downward with respect to the thickness direction of the sheet 151, Thereby, the front-end | tip part of the position correction guide 932 is inserted in the 2nd recessed part 16 [refer FIG. 12 (d)]. If so, the position of the second recessed portion 16 is controlled by the position correction guide 932.

In addition, in the position control of the position control guide 923 and the position correction guide 932 carried out in this order, the maximum amount of the position of the second recessed portion 16 is controlled by the position correction guide 932, that is, in In the thickness direction of the sheet 151, the positional deviation between the central axis of the front end portion and the front end portion of the second recessed portion 16 when the front end portion of the position correction guide 932 coincides with the first surface 15 of the sheet 151 is U ( mm), and when the maximum positional deviation between the central axis of the second recessed portion 16 and the central axis of the position control guide 923 is V (mm), V ≦ U and 0 ≦ UV ≦ 0.5 should be satisfied. By satisfying these relationships, and by implementing the position control of the position correction guide 932 after the position control of the position control guide 923, a better position can be achieved in the subsequent step [D-6a]. The feeding hole 11 is formed in the sheet 151 with accuracy.

Here, in this step, the front end portion of the position correction guide 932 is inserted into the second recessed portion 16, and the shape of the front end portion of the position correction guide 932 and the shape of the second recessed portion 16 have the following relationship, for example.

That is, first, for example, as shown in FIG. 17 (A1), when the length of the front end portion of the position correction guide 932 is M (mm) and the width of the front end side of the front end portion is N (mm), the front end portion is formed. A shape in which the width N of the front end portion becomes shorter (smaller) from the base end to the front end. In contrast, when the depth of the second recessed portion 16 is J (mm), the thickness of the bottom portion is K (mm), and the width is L (mm ), When the thickness of the portion other than the first recessed portion and the second recessed portion is C (mm), the width L of the second recessed portion 16 forming the second recessed portion 16 is constant in the depth (thickness) direction. At this time, the shape of the front end portion of the position correction guide 932 and the shape of the second recessed portion 16 should be formed such that M = J and N <L are satisfied.

In addition, when U = (LN) / 2, the magnitude of the positional deviation between the central axis of the guide pin 931 and the central axis of the feed hole 11 as described later is W (mm), and the inner diameter of the feed hole 11 is R ( mm) and the outer diameter of the proximal end portion side of the guide pin 931 is S (mm), W = (RS) / 2, the shape of the front end portion of the position correction guide 932 and the shape of the second recessed portion 16 should be adjusted. To satisfy U> W, (LN) / 2> (RS) / 2, and LN> RS.

When the angle formed by the central axis of the front end portion and the side surface of the front end portion is α (°), the width at the base end side of the front end portion can be expressed by N + 2 × M × Tanα. At this time, the shape of the front end portion of the position correction guide 932 and the shape of the second recessed portion 16 are preferably formed so as to satisfy L + 0.04 ≦ N + 2 × M × Tanα ≦ L + 0.1.

By satisfying these relationships, as shown in FIGS. 17 (A2) and (A3), the front end portion of the corresponding position correction guide 932 can be accommodated in the second recessed portion 16 with better accuracy, without Position deviation will occur.

In addition, for example, as shown in FIG. 17 (B1), when the length of the front end portion of the position correction guide 932 is M (mm) and the width of the front end portion is N (mm), the width N of the front end portion forming the front end portion is from A shape in which the base end becomes shorter (smaller) toward the front end, corresponding to the shape. When the depth of the second recess 16 is J (mm), the thickness at the bottom is K (mm), and the width is L (mm). When the thickness of the portion other than the first recessed portion and the second recessed portion is C (mm), the second recessed portion 16 has a shape in which the width L of the second recessed portion 16 becomes shorter toward the bottom side in the depth (thickness) direction.

At this time, when the angle formed by the central axis of the front end portion and the side surface of the front end portion is α (°), and the angle formed by the thickness direction of the sheet 151 and the inner peripheral surface of the second concave portion 16 is θ (°), The shape of the front end portion of the position correction guide 932 and the shape of the second recessed portion 16 are preferably formed so as to satisfy α = θ, 10 ° ≦ θ ≦ 30 °, and satisfy L ≦ N.

In addition, as shown in FIG. 17 (B2), when the front end portion of the position correction guide 932 matches the first surface 15 of the sheet 151 in the thickness direction of the sheet 151, the central axis of the front end portion and The magnitude of the positional deviation of the front end portion of the second recessed portion 16, that is, when the maximum amount of the position of the second recessed portion 16 controlled by the position correction guide 932 is U (mm), U can be U = L / 2 + J × Tanθ-N / 2 = J × Tanθ- (NL) / 2. At this time, the shape of the tip portion of the position correction guide 932 and the shape of the second recessed portion 16 should preferably be formed so as to satisfy 0.03 <U <0.5.

Furthermore, as shown in FIG. 17 (B3), when the front end portion of the position correction guide 932 is inserted into the second recessed portion 16 correspondingly, the depth (size) of the front end portion inserted into the second recessed portion 16 is γ (mm ), Γ can be expressed by γ = J- (NL) / (2 × Tanθ). At this time, the shape of the tip portion of the position correction guide 932 and the shape of the second recessed portion 16 should preferably be formed so that γ ≧ 0.15. In this case, when the magnitude of the positional deviation between the central axis of the second recessed portion 16 and the central axis of the position correction guide 932 is U (mm), U can be expressed by U = 0.

By satisfying these relationships, as shown in FIGS. 17 (B2) and (B3), the front end portion of the position correction guide 932 corresponding to its shape can be accommodated in the second recessed portion 16 with better accuracy, and No position deviation occurs.

[D-5a] Next, the punching head 910 is further moved downward with respect to the thickness direction of the sheet 151, that is, the position control of the position control guide 923 and the position correction guide 932 is continued. In the state, the pressing plate (baffle plate) 940 is moved downward with respect to the thickness direction of the sheet 151, thereby bringing the bottom surface of the pressing plate 940 into contact with the first surface 15 of the sheet 151 [see FIG. 13 (a). ].

Thereby, the first surface 15 of the sheet 151 is pressed by the bottom surface of the pressing plate 940, and as a result, the position of the sheet 151 is controlled by the pressing plate 940.

[D-6a] Next, the punching head 910 is moved further downward with respect to the thickness direction of the sheet 151, that is, the position control guide 923, the position correction guide 932, and the pressing plate 940 are maintained. of In the position-controlled state, the punching tool 921 is moved downward with respect to the thickness direction of the sheet 151 until the protrusion 922 reaches the through hole provided in the receiving plate 952 [see FIG. 13 (b)].

Thereby, the portion corresponding to the abutment position of the protrusion 922 in the sheet 151 is punched into the punched object 17, and as a result, the feed hole 11 can be formed in the sheet 151 as shown in FIG. 11 (b). .

Since the position of the sheet 151 is controlled by the position control guide 923, the position correction guide 932, and the pressing plate 940 when the sheet 151 is penetrated by the punching tool 921 like this, the sheet 151 can be reliably prevented Position deviation occurs. Therefore, the feeding hole 11 can be formed with respect to the first recessed portion 12 with excellent positional accuracy.

[D-7a] Next, the punching head 910 is moved upward with respect to the thickness direction of the sheet 151, that is, the position control guide 923, the guide pin 931, the position correction guide 932, and the pressing plate 940 are moved. Moving upward with respect to the thickness direction of the sheet 151, the position control of the sheet 151 by these members is released [see FIG. 13 (c)].

Then, the sheet 151 is conveyed from the entrance side to the exit side of the sheet 151 in the traveling direction, thereby supplying the sheet 151 to the punching of the second feeding hole 11. With these steps, the first punching of the feed hole 11 can be performed.

<< Second punching >>

Next, the second punching of the feed hole 11 of the sheet 151 by the punching die 900 is performed, that is, the second shot of the sheet 151 is pressed with the punching tool 921. In the second punching, each part included in the punching die 900, Each portion of the sheet 151 corresponding to the first recessed portion 12, the second recessed portion 16, and the feed hole 11 of the first hair is formed in the following manner.

That is, as shown in FIG. 10 (b), when the sheet 151 is viewed from the upper side, the position correction guide 932 is positioned at the entrance side of the sheet 151 in the traveling direction of the projection 922 included in the punching tool 921 and Each outer side of the exit side is inserted into the second recessed portion 16 so as to correspond to the second recessed portion 16.

In addition, the guide pin 931 is inserted into the leading end of the sheet 151 of the protrusion 922 of the punching tool 921 in the direction of travel of the punching tool so as to correspond to the feed hole 11 formed by the first punching. Feed hole 11.

Hereinafter, a method of forming the feed holes 11 using the punching die 900 in which the parts are arranged in this manner will be described in order.

[D-1b] First, the sheet 151 formed with the first recessed portion 12, the second recessed portion 16, and the first punched feed hole 11 shown in FIG. 11 (b) is moved from the direction of travel of the sheet 151. The inlet side is conveyed toward the outlet side, whereby the sheet 151 is carried on the support table 950 [see FIG. 14 (a)].

[D-2b] Next, the punching head 910 is moved downward with respect to the thickness direction of the sheet 151, that is, the guide pin 931 is moved downward with respect to the thickness direction of the sheet 151, thereby moving the guide The tip end of the pin 931 is inserted into the feed hole 11 formed by the first punching [see FIG. 14 (b)].

Thereby, the feed hole 11 formed by the first punching is controlled by the guide pin 931.

Here, in this step, the front end portion of the guide pin 931 is inserted into the feed hole 11, and the shape of the front end portion of the guide pin 931 has, for example, a structure as described below.

That is, first, for example, as shown in FIG. 18 (A1), when the outer diameter of the base end portion side of the guide pin 931 is S (mm), and the outer diameter of the front end side is T (mm), When the diameter is R (mm), the guide pin 931 has a shape in which the radius is reduced halfway from the base end to the front end and the front end portion forms a flat surface.

At this time, as shown in FIG. 18 (A1), when the flat surface of the front end of the guide pin 931 coincides with the first surface 15 of the sheet 151 in the thickness direction of the sheet 151, the guide pin 931 The magnitude of the positional deviation between the central axis of the feed hole 11 and the central axis of the feed hole 11, that is, when the maximum amount of the position of the feed hole 11 controlled by the guide pin 931 is ε (mm), ε can be expressed by ε = (RT) / 2 Of it. At this time, the shape of the tip portion of the guide pin 931 is preferably formed so as to satisfy ε ≧ 0.2.

In addition, as shown in FIG. 18 (A2), in the thickness direction of the sheet 151, the guide is made to protrude from the second surface 13 of the sheet 151 so that the radius of the tip of the guide pin 931 decreases. When the pin 931 is inserted through the sheet 151, when the positional deviation between the central axis of the guide pin 931 and the central axis of the feed hole 11 is W (mm), W can be expressed by W = (RS) / 2. At this time, the shape of the front end portion of the guide pin 931 should satisfy 0 <W ≦ 0.015.

In this way, as shown in FIGS. 18 (A1) and (A2), the guide pin 931 is inserted into the feed hole 11. At this time, when the central axis of the guide pin 931 and the front end portion (reduced diameter portion) of the guide pin 931 When the angle formed by the side of) is λ (°), the shape of the front end portion of the guide pin 931 should satisfy 0 <RS ≦ 0.03, 0 ≦ T ≦ S-0.4 and 10 ° ≦ λ ≦ 30 °. Way to form.

By satisfying these relationships, as shown in FIGS. 18 (A1) and (A2), as the corresponding guide pin 931 is inserted into the feed hole 11, the second recess 16 is formed as described later. The front end portion of the position correction guide 932 corresponding to its shape is housed in the inside with a higher accuracy without positional deviation.

In addition, for example, as shown in FIG. 18 (B1), when the outer diameter of the proximal end portion side of the guide pin 931 is S (mm) and the inner diameter of the feed hole 11 is R (mm), the guide pin 931 is constituted, The radius starts to decrease from the base end to the front end, and the front end portion has a needle-like structure.

At this time, as shown in FIG. 18 (B1), when the tip of the needle-shaped guide pin 931 coincides with the first surface 15 of the sheet 151 in the thickness direction of the sheet 151, the guide pin The magnitude of the positional deviation between the central axis of 931 and the central axis of the feed hole 11, that is, when the maximum amount of the position of the feed hole 11 controlled by the guide pin 931 is ε (mm), ε can be expressed by ε = R / 2 .

In addition, as shown in FIG. 18 (B2), when the sheet 151 is inserted in the guide pin 931 in the thickness direction of the sheet 151, the radius of the leading end of the guide pin 931 is reduced from that of the sheet 151. When the second surface 13 protrudes, when the positional deviation between the central axis of the guide pin 931 and the central axis of the feed hole 11 is W (mm), W can be expressed as W = (R-S) / 2. At this time, the shape of the front end portion of the guide pin 931 should be formed so as to satisfy 0 <W ≦ 0.015.

In this way, as shown in FIGS. 18 (B1) and (B2), the guide pin 931 is inserted into the feed hole 11. At this time, the shape of the front end portion of the guide pin 931 should be 0 <RS ≦ 0.03. Way to form.

By satisfying these relationships, as shown in FIGS. 18 (B1) and (B2), as the corresponding guide pin 931 is inserted into the feed hole 11, the second recess 16 is formed as described later. The front end portion of the position correction guide 932 corresponding to its shape is housed in the inside with a higher accuracy without positional deviation.

[D-3b] Next, the punching head 910 is moved further downward with respect to the thickness direction of the sheet 151, that is, the position correction guide 932 is moved downward with respect to the thickness direction of the sheet 151. Thereby, the front-end | tip part of the position correction guide 932 is inserted in the 2nd recessed part 16 [refer FIG. 14 (c)]. Thereby, the position of the second recessed portion 16 is controlled by the position correction guide 932.

Here, in this step, the position correction guide 932 is used to control the position of the second recessed portion 16. To implement the position control with excellent position accuracy, the use in this step [D-2b] is required. The position control of the guide pin 931 in the feed hole 11 formed by the first punching is performed at the same time as described below.

First, as shown in FIG. 19, when the sheet material 151 is viewed from the upper side, the four position correction guides 932 move the entry side and the exit side of the sheet material 151 of the projection 922 of the punching tool 921 in the traveling direction. Each The front end portion is inserted into the second recessed portion 16 so as to correspond to the four second recessed portions 16. At this time, if the four position correction guides 932 are PR1, PR2, PR3, and PR4, respectively, the center coordinates in the X and Y directions are available (Xr1, Yr1), (Xr2, Yr2), (Xr3, Yr3) (Xr4, Yr4) represents it.

In addition, the four guide pins 931 are provided on the exit side of the sheet 151 of the protrusion 922 included in the punching tool 921 so as to correspond to the four feed holes 11 formed by the first punching. The front end portion is inserted through the feed hole 11. At this time, if the four guide pin 931 are respectively PP1, PP2, PP3, and PP4, the center coordinates of the respective X and Y directions are available (Xp1, Yp1), (Xp2, Yp2), (Xp3, Yp3), ( Xp4, Yp4).

In addition, the second punching is performed by using the punching tool 921 provided with the grid-like protrusions 922 to punch the feeding hole 11 into a corresponding grid-like shape (in this embodiment, two vertical holes at a time). , Horizontal 6). At this time, if the feed holes 11 in the four corners of the grid-shaped feed holes 11 are PS1, PS2, PS3, and PS4, respectively, the center coordinates of the respective X and Y directions are available (Xs1, Ys1), (Xs2 , Ys2), (Xs3, Ys3), (Xs4, Ys4) represent them.

In addition, the four position control guides 923 correspond to the four second recesses 16 on the outside of the entrance side and the exit side of the sheet 151 of the protrusion 922 included in the punching tool 921 in the traveling direction. The front end portion is inserted into the second recessed portion 16. At this time, if the four position control guides 923 are PQ1, PQ2, PQ3, and PQ4, respectively, the center coordinates of the respective X and Y directions are available (Xq1, Yq1), (Xq2, Yq2), (Xq3, Yq3) (Xq4, Yq4).

When defined in the above manner, first, if the center is PC1 and the circle passing the four guide pin 931 (PP1, PP2, PP3, PP4) is circle 935, and the coordinates of center PC1 are (Xc1, Yc1), then the circle The radius R1 of 935 can be expressed by the following formula (3), and the angle ψp formed by the line segment connecting the center PC1 and PP4 with respect to the X direction can be expressed by the following formula (4).

Then, as shown in FIG. 20, when the center is the central axis of the guide pin 931, and the magnitude of the positional deviation between the central axis of the guide pin 931 and the central axis of the feed hole 11 is taken as a circle with a radius R2 as a circle 936 In this case, the radius R2 can be expressed by R2 = W = (RS) / 2. At this time, assuming that the sheet 151 is rotated around the center PC1, the rotation angle ωp of the feed hole 11 can be expressed by the following formulas (5-1) and (5-2). In addition, when the intersections of circles 935 and 936 are PP41 and PP42, and the coordinates of their intersections are (Xp41, Yp41), (Xp42, Yp42), the coordinates of these intersections can be expressed by the following formulas (6), ( 7) Show it.

[Mathematical formula 3]

In addition, when the carrier tape 1 to be formed has the structure shown in FIG. 4 (a), as shown in FIG. 21 (a), when the point PC1 is centered, it passes through the center of the first recessed portion 12 The circle of point PK1 is circle pk1, the coordinates of center PC1 of circle pk1 is (Xc1, Yc1), and the coordinates of center PK1 of first recessed portion 12 is (Xk1, Yk1). The radius Rk1 of circle pk1 can be expressed as follows (8 ), The angle ψk1 of the center PK1 with respect to the X direction can be expressed by the following formula (9).

Then, at this time, if it is assumed that the sheet 151 rotates ωp ° around the point PC1, the center coordinate of the first concave portion 12 will be shifted to the coordinates PK11 (Xk11, Yk11) or PK12 (Xk12, Yk12). The iso-coordinates can be expressed by the following formulas (10) and (11), respectively.

Therefore, the magnitude of the positional deviation (Xt11, Yt11, Xt12, Yt12) of the first concave portion 12 can be expressed by the following formula (12).

The magnitudes of the positional deviations of the first recesses 12 (Xt11, Yt11, Xt12, Yt12) should preferably satisfy -0.05 ~ 0.05mm, more preferably -0.03 ~ 0.03mm. At this time, by increasing R1 and reducing R2, that is, increasing the distance between the diagonals of the four guide pin 931, the position deviation between the central axis of the guide pin 931 and the central axis of the feed hole 11 is caused. By reducing the size W, the magnitude of the positional deviation of the first recessed portion 12 can be set within the preferred range.

In addition, in the case where the carrier tape 1 to be formed has the structure shown in FIG. 4 (a), as shown in FIG. 21 (b), when the center of the point PC1 passes through the first concave portion 12, the The circle of the center point PK2 is the circle pk2, the coordinates of the center PC1 of the circle pk2 are (Xc1, Yc1), and the coordinates of the center PK2 of the first recess 12 are (Xk2, Yk2). In this case, the radius Rk2 of the circle pk2 can be expressed by the following formula (13), and the angle ψk2 of the center PK2 with respect to the X direction can be expressed by the following formula (14).

Then, at this time, if it is assumed that the sheet 151 rotates ωp ° around the point PC1, the center coordinate of the first concave portion 12 will be shifted to the coordinates PK21 (Xk21, Yk21) or PK22 (Xk22, Yk22), etc. The coordinates can be expressed by the following formulas (15) and (16), respectively.

Therefore, the magnitude of the positional deviation (Xt21, Yt21, Xt22, Yt22) of the first recessed portion 12 can be expressed by the following formula (17).

The magnitudes of the positional deviations of the first recesses 12 (Xt21, Yt21, Xt22, Yt22) should preferably satisfy -0.05 ~ 0.05mm, more preferably -0.03 ~ 0.03mm. At this time, by increasing R1 and reducing R2, that is, increasing the distance between the diagonals of the four guide pin 931, the position deviation between the central axis of the guide pin 931 and the central axis of the feed hole 11 is caused. By reducing the size W, the positional deviation of the first recessed portion 12 can be set within the preferred range.

In addition, in the case where the carrier tape 1 to be formed has the structure shown in FIG. 4 (a), as shown in FIG. 21 (c), when the point PC1 is centered, it passes through the center of the first recessed portion 12 The circle of point PK3 is circle pk3, the coordinates of center PC1 of circle pk3 is (Xc1, Yc1), and the coordinates of center PK3 of first recessed portion 12 is (Xk3, Yk3). The radius Rk3 of circle pk3 can be expressed by the following formula (18 ), The angle ψk3 of the center PK3 with respect to the X direction can be expressed by the following formula (19).

Then, at this time, if it is assumed that the sheet 151 rotates ωp ° around the point PC1, the center coordinate of the first concave portion 12 will be shifted to the coordinates PK31 (Xk31, Yk31) or PK32 (Xk32, Yk32). The iso-coordinates can be expressed by the following formulas (20) and (21), respectively.

Therefore, the magnitude of the positional deviation (Xt31, Yt31, Xt32, Yt32) of the first recessed portion 12 can be expressed by the following formula (22).

[Mathematical formula 6]

The magnitudes of the positional deviations (Xt31, Yt31, Xt32, Yt32) of the first recesses 12 should satisfy -0.05 to 0.05 mm, and more preferably -0.03 to 0.03 mm. At this time, by increasing R1 and reducing R2, that is, increasing the distance between the diagonals of the four guide pin 931, the position deviation between the central axis of the guide pin 931 and the central axis of the feed hole 11 is caused. By reducing the size W, the positional deviation of the first recessed portion 12 can be set within the preferred range.

Furthermore, in the case where the carrier tape 1 to be formed has a structure as shown in FIG. 4 (a), as shown in FIG. 21 (d), when the center of the point PC1 passes through the first concave portion 12, the The circle of the center point PK4 is the circle pk4, the coordinates of the center PC1 of the circle pk4 is (Xc1, Yc1), and the coordinates of the center PK4 of the first recess 12 is (Xk4, Yk4). The radius Rk4 of the circle pk4 can be expressed by the following formula ( 23). The angle ψk4 of the center PK4 with respect to the X direction can be expressed by the following formula (24).

Then, at this time, if it is assumed that the sheet 151 rotates ωp ° around the point PC1, the center coordinate of the first concave portion 12 will be shifted to the coordinates PK41 (Xk41, Yk41) or coordinates PK42 (Xk42, Yk42), etc. The coordinates can be expressed by the following formulas (25) and (26), respectively.

Therefore, the magnitude of the positional deviation (Xt41, Yt41, Xt42, Yt42) of the first concave portion 12 can be expressed by the following formula (27).

The magnitudes of the positional deviations of the first recesses 12 (Xt41, Yt41, Xt42, Yt42) should preferably satisfy -0.05 ~ 0.05mm, more preferably -0.03 ~ 0.03mm. At this time, by increasing R1 and reducing R2, that is, the distance between the diagonals of the four guide pin 931 is enlarged, and the central axis of the guide pin 931 and the feed hole 11 are increased. By reducing the magnitude W of the positional deviation of the central axis of the central axis, the positional deviation of the first recessed portion 12 can be set within the preferable range.

Further, as shown in FIG. 22, when the point PC1 is centered, the circles passing through the corner portions (points PR11 to 14) of the position correction guide 932 (PR1) are circles pr11 to 14, and circles pr11 to 14 The coordinates of the center PC1 are (Xc1, Yc1), and the coordinates PR11, PR12, PR13, PR14 of the corners of the position correction guide 932 are (Xr11, Yr11), (Xr12, Yr12), (Xr12, Yr12), For (Xr12, Yr12), the radius Rr11 ~ 14 of the circle pr11 ~ 14 can be expressed by the following formula (28), and the angles ψr11 ~ 14 of the coordinates PR11 ~ 14 of the corners with respect to the X direction can be used respectively Equation (29) shows this.

Then, at this time, if the sheet 151 is rotated around the point PC1, the second recessed portion 16 can be rotated to an angle ωr11 ~ 14 ° at which the corner portion of the position correction guide 932 abuts against the side wall surface of the second recessed portion 16. So far, if the intersections of the circles pr11 to 14 and the side wall surface of the second recessed portion 16 at this time are the coordinates PR11 '(Xr11', Yr11 '), the coordinates PR12' (Xr12 ', Yr12'), and the coordinates PR13 '(Xr13 ', Yr13') and coordinates PR14 '(Xr14', Yr14 '), these coordinates can be expressed by the following formulas (30) to (33), respectively.

Therefore, when the width (length) of the second recessed portion 16 is L (mm) and the width (length) of the front end side of the front end portion of the position correction guide 932 is N (mm), the position correction guide 932 controls The maximum amount U (mm) of the position of the second recessed portion 16 can be expressed by the following formulas (34) to (37).

[Mathematical formula 8]

Therefore, when the relationship of ωr11 ~ 14 ≧ ωp is satisfied, the position of the second concave portion 16 can be controlled by the position correction guide 932. When the relationship of ωr11 ~ 14 <ωp is formed, the position correction guide 932 cannot be used to control The position of the second recessed portion 16.

In addition, in the position control of the guide pin 931 and the position correction guide 932 implemented in the above order, the maximum amount when the position correction guide 932 controls the position of the second recessed portion 16 is U (mm), and The central axis of the guide pin 931 when the guide pin 931 is inserted into the sheet 151 in a thickness direction of the sheet 151 such that the reduced radius of the front end of the guide pin 931 protrudes from the second surface 13 of the sheet 151 When the magnitude of the position deviation from the central axis of the feed hole 11 is W (mm), it is desirable to satisfy W ≦ U and 0.015 ≦ UW ≦ 0.5. By satisfying these relationships, it is possible to use a structure in which position control of the position correction guide 932 is performed after the position control of the guide pin 931, and in the subsequent step [D-5b], the position is corrected with better position accuracy. A feed hole 11 is formed on the material 151.

[D-4b] Next, the punching head 910 is moved further downward with respect to the thickness direction of the sheet 151, that is, while the position control of the guide pin 931 and the position correction guide 932 is maintained. The pressing plate (baffle plate) 940 is moved downward with respect to the thickness direction of the sheet 151, thereby bringing the bottom surface of the pressing plate 940 into contact with the first surface 15 of the sheet 151 [see FIG. 14 (d)].

Thereby, the first surface 15 of the sheet 151 is pressed by the bottom surface of the pressing plate 940, and as a result, the position of the sheet 151 is controlled by the pressing plate 940.

[D-5b] Next, the punching head 910 is moved further downward with respect to the thickness direction of the sheet 151, that is, while maintaining the positions of the guide pin 931, the position correction guide 932, and the pressing plate 940 In the controlled state, the punching tool 921 is moved downward with respect to the thickness direction of the sheet 151 until the projection 922 reaches the through hole provided in the receiving plate 952 [see FIG. 15 (a)].

Thereby, a portion of the sheet 151 corresponding to the abutting position of the protrusion 922 is punched as the punched object 17. As a result, as shown in FIG. 11 (c), the feeding hole 11 can be formed in the sheet 151.

When the sheet 151 is penetrated by the punching tool 921 like this, the position of the sheet 151 is controlled by the guide pin 931, the position correction guide 932, and the pressing plate 940, so that the position of the sheet 151 can be reliably prevented deviation. Therefore, the feeding hole 11 can be formed with respect to the first recessed portion 12 with excellent positional accuracy.

[D-6b] Next, the punching head 910 is moved further upward with respect to the thickness direction of the sheet 151, that is, the guide pin 931, the position correction guide 932, and the pressing plate 940 are moved relative to the sheet 151. By moving the thickness direction upward, the position control of the sheet 151 by these members is released [see FIG. 15 (b)].

Then, the sheet 151 is conveyed from the entrance side to the exit side of the sheet 151 in the traveling direction, thereby supplying the sheet 151 to the punching holes of the third feeding hole 11.

With the above steps, the second punching of the feed hole 11 is performed. Then, by repeatedly implementing the second punching, that is, sequentially performing the second and subsequent punching, a plurality of feeding holes 11 can be formed. As a result, the sheet 151 for manufacturing a carrier tape including the first recessed portion 12, the second recessed portion 16, and the feed hole 11 can be manufactured.

[E] Next, the prepared sheet 155 for a carrier tape is wound with the first surface 15 or the second surface 13 as a reel (core material) side (winding step).

Wrapping the production sheet 155 on the reel in this manner helps to save space during storage and transportation of the production sheet 155.

In addition, the aspect of the production sheet 155 during storage and transport is not limited to the case where it is wound on a reel, and for example, the sheet 155 for production carrier tape formed in a belt shape may be formed along the middle portion thereof. The long strip-shaped sheet is cut in the width direction, and stored and transported in a state where the long strip-shaped production sheet 155 is overlapped. In addition, the production sheet 155 may be cut (cut) with a predetermined width along the longitudinal direction of the production sheet 155 before being wound on a reel, thereby producing one pair of side-by-side The plurality of first recessed portions 12 in a row and the carrier tapes 1 of the plurality of feed holes 11 aligned in a row. As described above, the carrier sheet 155 can be manufactured in a state of being wound on the reel.

<Other structure examples of package body>

The package 100 may have the following structure in addition to the first structure example described above.

<< Second Structure Example >>

First, a second structural example of the package will be described.

Fig. 29 is a partial perspective view showing a second structural example of the package of the present invention. Fig. 30 is a sectional view taken along the line H-H in Fig. 29; Fig. 31 is a sectional view taken along the line J-J of Fig. 29; In the following description, the upper side in FIGS. 29 to 31 is referred to as “upper”, and the lower side is referred to as “lower”. In addition, in FIG. 29, in order to show the electronic components contained in the pocket of the carrier tape, any part of the cover tape is removed. In order to show the inside of the exit pocket more clearly, the electronic parts are omitted from the front pocket.

The carrier tape 1 included in the package 100 according to the second structural example is a carrier tape for resin electronic component storage having a plurality of first recesses 12 arranged along the longitudinal direction of the strip-shaped sheet. The first recessed portion 12 is formed on the first surface 15 of the carrier tape 1. The second surface 13 on the opposite side of the first surface 15 of the carrier tape 1 is almost flat. However, as in the second structural example, the second surface 13 may be slightly near the bottom of the first concave portion 12 and its outer peripheral portion. Sunken.

<< Third Structure Example >>

Next, a third structural example of the carrier tape will be described. Fig. 32 is a partial perspective view showing a third structural example of the package of the present invention. Fig. 33 is a sectional view taken along the line K-K of Fig. 32; Fig. 34 is a sectional view taken along the line L-L in Fig. 32; In the following description, the upper side in FIGS. 32 to 34 will be referred to as “upper”, and the lower side will be referred to as “lower”. In addition, in FIG. 32, in order to show the electronic components contained in the pocket of the carrier tape, any part of the cover tape is removed. In order to show the inside of the exit pocket more clearly, the electronic parts are omitted from the front pocket.

The carrier tape 1 included in the package 100 according to the third structural example is a carrier tape for resin electronic component storage having a plurality of first recesses 12 arranged along the longitudinal direction of the strip-shaped sheet. The first recessed portion 12 is formed on the carrier. 送 带 1 的 第一 面 15。 15 of the first surface. The second surface 13 on the opposite side of the first surface 15 of the carrier tape 1 is almost flat. However, as in the third structural example, the second surface 13 may be slightly near the bottom of the first recessed portion 12 and its outer peripheral portion. Swell.

<A sheet manufacturing apparatus for producing a carrier tape>

The sheet manufacturing apparatus for a carrier tape used in the method for manufacturing a sheet for a carrier tape of the present invention is not limited to the first embodiment described above, and may have the following structure, for example.

<< 2nd implementation aspect >>

First, a sheet manufacturing apparatus 500 for producing a carrier tape according to a second embodiment will be described. 35 is a longitudinal cross-sectional view showing a second embodiment of the manufacturing apparatus for manufacturing a carrier tape sheet used in the manufacturing method for manufacturing a carrier tape sheet according to the present invention.

Hereinafter, differences from the first embodiment of the sheet manufacturing apparatus 500 for producing a carrier tape will be described, and description of the same matters will be omitted.

In the sheet manufacturing apparatus 500 for producing a carrier tape in the second embodiment, the arrangement of the rear-stage cooling roller 130 and the rear-stage cooling roller 140 in the forming section 800 is omitted, and the forming section 800 is constituted by the contact roller 110 and the cooling roller 120.

In the sheet manufacturing apparatus 500 for producing a carrier tape having such a structure, the first surface 15 of the molten sheet 150 abuts on the cooling roller 120 until the cooling roller 120 rotates 90 °.

<< Third Implementation Aspect >>

Next, a sheet manufacturing apparatus 500 for producing a carrier tape according to a third embodiment will be described. FIG. 36 is a longitudinal sectional view showing a third embodiment of the sheet manufacturing apparatus for a carrier tape used in the method for manufacturing a sheet for a carrier tape of the present invention.

Hereinafter, differences from the first embodiment of the sheet manufacturing apparatus 500 for producing a carrier tape will be described, and description of the same matters will be omitted.

In the sheet manufacturing apparatus 500 for producing a carrier tape according to the third embodiment, in the forming section 800, the arrangement of the rear-stage cooling roller 140 is omitted, and the forming section 800 is constituted by the contact roller 110, the cooling roller 120, and the rear-stage cooling roller 130.

In the sheet manufacturing apparatus 500 for producing a carrier tape having such a structure, the first surface 15 of the molten sheet 150 abuts on the cooling roller 120 until the cooling roller 120 rotates 180 °, and the second surface of the molten sheet 150 13 abuts on the rear-stage cooling roller 130 until the rear-stage cooling roller 130 rotates 90 °.

<< 4th implementation aspect >>

Next, a sheet manufacturing apparatus 500 for producing a carrier tape according to a fourth embodiment will be described. Fig. 37 is a longitudinal sectional view showing a fourth embodiment of a manufacturing apparatus for manufacturing a carrier tape sheet used in the manufacturing method for manufacturing a carrier tape sheet according to the present invention.

Hereinafter, differences from the first embodiment of the sheet manufacturing apparatus 500 for producing a carrier tape will be described, and description of the same matters will be omitted.

In the sheet manufacturing apparatus 500 for producing a carrier tape according to the fourth embodiment, the forming section 800 has different positions where the rear-stage cooling rollers 130 and 140 are arranged, and the rear-stage cooling roller 130 is positioned below the cooling roller 120.

That is, the connecting line segment between the center of the contact roller 110 and the center of the cooling roller 120, and the connecting line segment between the center of the rear cooling roller 130 and the center of the rear cooling roller 140 are respectively different from the center of the cooling roller 120 and the rear cooling roller 130. The connecting line segments at the center are orthogonal.

In the sheet manufacturing apparatus 500 for producing a carrier tape having such a structure, the first surface 15 of the molten sheet 150 abuts on the cooling roller 120 and the second surface of the molten sheet 150 is rotated until the cooling roller 120 rotates 90 °. 13 abuts on the rear-stage cooling roller 130 until the rear-stage cooling roller 130 rotates 90 °, and the first surface 15 of the molten sheet 150 abuts on the rear-stage cooling roller 140 until the rear-stage cooling roller 140 rotates 90 °.

<< 5th implementation aspect >>

Next, a sheet manufacturing apparatus 500 for producing a carrier tape according to a fifth embodiment will be described. FIG. 38 is a longitudinal sectional view showing a fifth embodiment of the manufacturing apparatus for manufacturing a carrier tape sheet used in the manufacturing method for manufacturing a carrier tape sheet according to the present invention. FIG.

Hereinafter, the differences from the apparatus for manufacturing a carrier sheet 500 according to the fourth embodiment will be described, and the description of the same matters will be omitted.

In the sheet manufacturing apparatus 500 for producing a carrier tape according to the fifth embodiment, in the forming section 800, the cooling roll 120 does not include the forming die 220, and the rear cooling roll 130 includes the forming die 220.

That is, in this embodiment, the forming die 220 provided on the cooling roll 120 is omitted, and the forming die 220 is provided on the outer peripheral surface of the rear cooling roll 130 so as to arrange protrusions.

The sheet manufacturing apparatus 500 for producing a carrier tape having such a structure supplies the molten sheet 150 to the cooling roller 120 and the rear cooling roller 130 after supplying the molten sheet 150 between the cooling roller 120 and the contact roller 110. Therefore, when supplied between the contact roller 110 and the cooling roller 120, both the first surface 15 and the second surface 13 become flat, and thereafter, when supplied between the cooling roller 120 and the rear cooling roller 130, The first concave portion 12 and the second concave portion 16 are formed on the first surface 15.

<< 6th implementation aspect >>

Next, a sheet manufacturing apparatus 500 for producing a carrier tape according to a sixth embodiment will be described. FIG. 39 is a longitudinal sectional view showing a sixth embodiment of the manufacturing apparatus for manufacturing a carrier tape sheet used in the manufacturing method for manufacturing a carrier tape sheet according to the present invention.

Hereinafter, differences from the first embodiment of the sheet manufacturing apparatus 500 for producing a carrier tape will be described, and description of the same matters will be omitted.

In the sheet manufacturing apparatus 500 for producing a carrier tape according to the sixth embodiment, in the forming section 800, the cooling roller 120 does not include the forming die 220, and the contact roller 110 includes the forming die 220.

<< Seventh to tenth implementation aspects >>

Next, a sheet manufacturing apparatus 500 for producing a carrier tape according to the seventh to tenth embodiments will be described. Figs. 40 to 43 are longitudinal sectional views showing the seventh to tenth embodiments of the apparatus for producing a sheet for a carrier tape used in the method for producing a sheet for a carrier tape of the present invention.

The sheet manufacturing device 500 for producing a carrier tape according to the seventh to tenth embodiments is arranged in the forming section 800 so as to pair the sheets for producing a carrier tape according to the first to third and sixth embodiments. The manufacturing apparatus 500 further has a structure in which the contact roller 170 is brought into contact with the second surface 13. That is, the sheet manufacturing apparatus 500 for producing a carrier tape according to the seventh to tenth embodiments constitutes forming the sheet manufacturing apparatus 500 for producing a carrier tape according to the first to third and sixth embodiments. The part 800 is further provided with the structure of the contact roller 170.

Since the sheet manufacturing apparatus 500 for producing a carrier tape having such a structure flattens the second surface 13 by using both the contact roller 110 and the contact roller 170, the flatness of the second surface 13 can be further improved.

<< 11th implementation aspect >>

Next, a sheet manufacturing apparatus 500 for producing a carrier tape according to an eleventh embodiment will be described.

FIG. 44 is a longitudinal sectional view showing an eleventh embodiment of the apparatus for manufacturing a sheet for a carrier tape used in the method for manufacturing a sheet for a carrier tape of the present invention.

Hereinafter, differences from the first embodiment of the sheet manufacturing apparatus 500 for producing a carrier tape will be described, and description of the same matters will be omitted.

In the eleventh embodiment, the sheet manufacturing apparatus 500 for producing a carrier belt has a structure in which a flat seamless conveyor belt 300 is mounted on a plurality of contact rollers 110 and 170 and a tension roller 190 in the forming section 800.

In the sheet manufacturing apparatus 500 for producing a carrier tape having such a structure, the distance to contact the flat seamless conveyor belt 300 is longer than the distance to the contact roller 110, so that the second surface can be achieved. 13 for the purpose of flatter.

<< 12th implementation aspect >>

Next, a sheet manufacturing apparatus 500 for producing a carrier tape according to a twelfth embodiment will be described. FIG. 45 is a longitudinal sectional view showing a twelfth embodiment of the apparatus for manufacturing a sheet for a carrier tape used in the method for manufacturing a sheet for a carrier tape of the present invention.

Hereinafter, the differences from the apparatus for manufacturing a carrier sheet 500 according to the sixth embodiment will be described, and the description of the same matters will be omitted.

In the twelfth embodiment, a sheet manufacturing apparatus 500 for producing a carrier tape is formed in a forming section 800 with a plurality of contact rollers 110 and 170 and a tension roller 190. A forming mold having a plurality of protrusions 201 is formed. The structure of the 220 seamless conveyor 310.

In the sheet manufacturing apparatus 500 for producing a carrier tape having such a structure, the distance to contact the seamless conveyor belt 310 having a mold formed thereon is longer than the distance to contact the contact roller 110 provided with the mold. The degree of molding of the first recessed portion 12 and the second recessed portion 16 can be reliably increased.

<< 13th implementation aspect >>

Next, a sheet manufacturing apparatus 500 for producing a carrier tape according to a thirteenth embodiment will be described. FIG. 46 is a longitudinal sectional view showing a thirteenth embodiment of the apparatus for manufacturing a sheet for a carrier tape used in the method for manufacturing a sheet for a carrier tape of the present invention.

In the sheet manufacturing apparatus 500 for producing a carrier tape according to the thirteenth aspect, in the forming section 800, a flat seamless conveyor belt 300 is mounted on a plurality of contact rollers 110, 170, 180 and tension rollers 190. A structure in which a seamless conveyor belt 310 having a forming die 220 is mounted on a plurality of cooling rollers 120 and 130 without a die.

In the sheet manufacturing apparatus 500 for producing a carrier tape having such a structure, since the contact distance with each of the seamless conveyor belts 300 and 310 is long, the purpose of flattening the second surface 13 can be achieved, and at the same time, the second surface 13 can be made flat. The degree of molding of the first recessed portion 12 and the second recessed portion 16 is reliably increased.

In addition, in addition to the contact rollers or cooling rollers of each embodiment, in addition to being located at a position of 90 degrees or 180 degrees with respect to the adjacent contact rollers or cooling rollers, etc., they can also be set to be movable and relative to the adjacent contact rollers Or the cooling rollers are arranged at various angles.

<< 14th implementation aspect >>

Next, a sheet manufacturing apparatus 500 for producing a carrier tape according to a fourteenth embodiment will be described. FIG. 47 is a longitudinal sectional view showing a fourteenth embodiment of the manufacturing apparatus for manufacturing a carrier tape sheet used in the manufacturing method for manufacturing a carrier tape sheet according to the present invention.

Hereinafter, differences from the first embodiment of the sheet manufacturing apparatus 500 for producing a carrier tape will be described, and description of the same matters will be omitted.

In the sheet manufacturing apparatus 500 for producing a carrier tape in the fourteenth aspect, the sheet supply section 600 replaces the press-forming section by heating the strip-shaped sheet so that at least the first side of the sheet The 15 side is configured by a heating section that supplies a molten state or a softened state.

That is, in the sheet manufacturing apparatus 500 for producing a carrier tape according to this embodiment, the sheet supply unit 600 includes a roller 156 and a nozzle 700 instead of the T-die.

The roller 156 is a feeding mechanism for feeding the sheet-like sheet 151. The sheet 151 is wound around the drum 156. The drum 156 is configured to be rotated by a motor (drive mechanism) not shown in the figure, and the sheet 151 is continuously sent out from the drum 156 by the rotation of the drum 156.

The shower head 700 is a heating mechanism that blows out heated hot air from its opening 701. The shower head 700 has a structure that is disposed between the drum 156 and the cooling roller 120, and blows heated hot air to the first surface 15 of the sheet 151 sent out from the drum 156, thereby causing at least the first surface 15 side of the sheet 151 Melt or soften.

The shower head 700 is not limited to a structure in which heated hot air is blown from the opening 701 to the first surface 15 as shown in FIG. 47. For example, it may have a structure in which the heated hot plate is in contact with the first surface 15. That is, the heating mechanism may be any structure as long as it can heat the sheet 151 and melt or soften at least the first surface 15 side.

In addition, the degree to which the hot air is blown to the sheet 151, that is, the degree of heating of the sheet 151, as long as the first surface 15 side is softened when pressed against the forming die 220, can form a first The degree of the first recessed portion 12 and the second recessed portion 16 is sufficient, and the first surface 15 side does not necessarily have to be melted. Then, it is not necessary to soften or melt the whole including the second surface 13 side.

In the sheet manufacturing apparatus 500 for producing a carrier tape according to this aspect, the heating unit is constituted by the drum 156 and the shower head 700. The heating unit constitutes a sheet feeding unit 600 that supplies a strip-shaped sheet in a molten state or a softened state on at least the first surface 15 side.

The sheet manufacturing apparatus 500 for producing a carrier tape according to this embodiment of the structure described above first rotates the drum 156 by driving a motor (not shown), and continuously rolls the sheet 151 wound on the drum 156 continuously. It is sent out (supplied) between the contact roller 110 and the cooling roller 120.

Next, the heated hot air is blown from the opening 701 of the shower head 700 to the first surface 15 of the sheet 151 in the middle of the drum 156 and the cooling roller 120. As a result, at least the first surface 15 side of the sheet 151 is melted or softened. As a result, the sheet 151 becomes a molten sheet 150 in which at least the first surface 15 side is melted or softened, and is sent to the contact roller 110 and Between the cooling rollers 120.

In addition, in this embodiment, the strip-shaped (rectangular) sheet 151 wound around the drum 156 is sent out between the contact roller 110 and the cooling roller 120, but the sent-out sheet 151 is not limited to Such structures. For example, the strip-shaped sheet 151 may be cut into a strip shape in advance, and the strip-shaped sheet 151 may be sent out between the contact roller 110 and the cooling roller 120. In this case, in the sheet manufacturing apparatus 500 for producing a carrier tape, the arrangement of the rollers 156 may be omitted, and the heating section is constituted by the shower head 700.

In this way, the same effect as that described in the first embodiment can be obtained when the sheet feeding section is configured by the heating section instead of the press-forming section.

However, as in the first to thirteenth embodiments, if the sheet feeding portion is formed by the press-forming portion, the sheet material 151 can be manufactured together with the first concave portion 12 on the sheet material 151 by a series of operations. . Therefore, there is no need to store and prepare to cut the strip-shaped sheet with necessary thickness, width, and length in advance. Therefore, it can solve the problem that the cost increases due to the increase in the cost of materials purchase or processing.

In the above, the manufacturing method of the sheet for carrying tapes, the manufacturing method of the sheet for carrying tapes, and the packaging body of the present invention have been described based on the embodiments shown in the drawings, but the present invention is not limited to these aspects.

For example, in the sheet manufacturing apparatus for producing a carrier tape, the structure of each part may be replaced with an arbitrary structure that can perform the same function, or an arbitrary structure may be added. The structures of the first to fourteenth embodiments may be arbitrarily combined.

Furthermore, in this embodiment, in the sheet manufacturing apparatus for producing a carrier tape, the forming die includes a plurality of protrusions, but the number of the protrusions can be determined according to the first concave portion and the first concave portion that are to be formed by the carrier tape. The number of 2 recesses is appropriately set, and may be two depending on the number of the first recesses and the second recesses. That is, the forming mold only needs to have two or more protrusions.

In addition, this embodiment is described in the case where the feeding holes provided in the electronic component storage carrier tape are through holes penetrating the first surface and the second surface thereof, but the feeding holes are not limited to such structures, and It may be a hole portion having a bottom on the second surface side and formed on the first surface side.

[Industrial availability]

According to the present invention, it is possible to provide a carrier tape sheet that can produce a carrier tape that can form a feed hole with excellent positional accuracy with respect to a recessed portion (first recessed portion) that can accommodate an electronic component, a manufacturing method thereof, and A package of the carrier tape. Therefore, the present invention has industrial applicability.

Claims (29)

A sheet for producing a carrier tape, which is composed of a strip-shaped sheet and made of resin, and has a first surface and a second surface located on the opposite side of the first surface; and on the first surface A row formed by a plurality of first recessed portions arranged along the longitudinal direction of the sheet and two rows formed by a plurality of second recessed portions arranged in parallel with the first recessed portion are formed. The two rows formed by the recessed portions are arranged so as to sandwich the plurality of first recessed portions. The sheet for the carrier tape is formed on the end side in the short side direction and can be cut along the long side direction. The two parts removed by cutting are formed in the two rows formed by the plurality of second recesses in the two parts that can be removed. For example, the sheet for producing a carrier tape in the scope of the first patent application, wherein a plurality of areas other than the two removable portions of the first surface are formed in parallel with the first recess. Feed holes. For example, if the sheet for the carrier tape is produced in the first patent application, the second surface is almost flat. For example, if a sheet for a carrier tape is made in the scope of application for item 3, if the depth of the second recess is J (mm), the thickness of the bottom of the second recess for the sheet for carrier tape is made. Is K (mm), and the thickness of the portion other than the first recessed portion and the second recessed portion of the sheet for the carrier tape is C (mm), J + K = C is substantially established. For example, if a sheet for a carrier tape is made in the scope of application for item 3, if the depth of the second recess is J (mm), the thickness of the bottom of the second recess for the sheet for carrier tape is made. Is K (mm), and the thickness of the portion other than the first recessed portion and the second recessed portion of the sheet for the carrier tape is C (mm), then -0.1 <C- (J + K) <0.1 Established. For example, if a sheet for a carrier tape is made in the third scope of the patent application, if the depth of the second recessed part is J (mm), the first recessed part of the sheet for the carrier strap and the first recessed part are made. 2 When the thickness of the portion other than the recess is C (mm), C-0.15 ≦ J ≦ C-0.05 is established. For example, if a sheet for a carrier tape is produced in the scope of the patent application, the inner edge of the second recessed portion is bent to have a curvature radius of 0.2 mm or less. For example, if the sheet for the carrier tape is produced in the first patent application, the first surface or the second surface is wound as the core material side, and the diameter of the core material is 5 to 300 mm. A manufacturing method for manufacturing a sheet for a carrier tape is a manufacturing method for manufacturing a sheet for a carrier tape as described in any one of claims 1 to 8 of the scope of application for a patent, and is characterized by including a film forming step, Forming the strip-shaped sheet into a film by an extrusion molding method; and a forming step of forming a row of the plurality of first recesses and a plurality of second recesses on the first surface of the strip-shaped sheet 2 columns. For example, in the method for manufacturing a sheet for a carrier tape according to item 9 of the patent application, a forming mold is used in the forming step, and the forming mold has first and second recesses for forming the first and second recesses, respectively. A protrusion and a second protrusion. For example, the manufacturing method of a sheet for a carrier tape according to item 10 of the patent application, wherein the forming mold includes a roller-shaped first mold portion, and the first mold portion has at least one first protrusion on the outer periphery. Thing. For example, the method for manufacturing a sheet for a carrier tape according to item 10 of the patent application, wherein the forming mold includes a roller-shaped second mold portion, and the second mold portion has one or more second protrusions on the outer periphery. Thing. For example, in the method for manufacturing a sheet for a carrier tape according to item 9 of the patent application scope, in the forming step, the second surface of the band-shaped sheet is flattened. For example, in the method for manufacturing a sheet for a carrier tape according to item 13 of the patent application, in the forming step, a contact roller for flattening the second surface of the band-shaped sheet is used. For example, the method for manufacturing a sheet for a carrier tape according to item 9 of the patent application, further comprising a cooling step of cooling the band-shaped sheet after the forming step. For example, the manufacturing method of the sheet | seat for carrier tapes of Claim 15 of a patent application range WHEREIN: In this cooling process, a cooling roller is used. For example, the method for manufacturing a sheet for a carrier tape according to item 15 of the application, wherein after the cooling step, a plurality of feeds arranged in parallel with the first recessed portion are processed on the band-shaped sheet. Hole punching step. For example, a method for manufacturing a sheet for a carrier tape according to item 17 of the application, wherein, in the punching step, a punching die is used, and the punching die is provided with a punching tool for processing the feeding hole. . For example, the method for manufacturing a sheet for a carrier tape according to item 18 of the patent application, wherein the punching die has a position correction mechanism for ensuring the position accuracy of the first recess and the feeding hole. For example, the method for manufacturing a sheet for a carrier tape according to item 19 of the patent application, wherein the position correction mechanism includes a position correction guide and a position control guide for controlling a parallel arrangement with the first recess. The position of the second recess; and a guide pin for controlling the position of the feeding hole. For example, the manufacturing method of a sheet for a carrier tape according to the scope of application for patent No. 20, wherein the punching die is at the entrance side of the strip-shaped sheet in the direction of travel of the punching tool for punching the punching tool and The position correction guide is provided on each outer side of the exit side. For example, in the method for manufacturing a sheet for a carrier tape according to item 20 of the application, wherein the punching die has an entrance side and an exit side of the strip-shaped sheet in the direction of travel of the punching tool for punching the feed hole Each side outer side has the position control guide. For example, the method for manufacturing a sheet for a carrier tape as claimed in claim 20, wherein the punching die has the exit side of the belt-shaped sheet of the punching tool of the punching tool that has the feeding hole. Guide pin. For example, in the method for manufacturing a sheet for a carrier tape in the scope of application for a patent, in the punching step, before pressing the first surface of the band-shaped sheet with a baffle, the position The correction guide controls the position of the second recessed portion. For example, in the method for manufacturing a sheet for a carrier tape in the scope of application for patent No. 24, in the punching step, the punching tool is used to press the first round of the tape-shaped sheet in the first round. Before the position correction guide controls the position of the second recessed portion, the position control guide controls the position of the second recessed portion. For example, if the method for manufacturing a sheet for a carrier tape is applied for item 25 of the scope of patent application, if the maximum amount for controlling the position of the second recessed portion by the position correction guide is U (mm), and the first The maximum amount of positional deviation between the central axis of the recessed portion and the central axis of the position control guide is V (mm), and V ≦ U is established. For example, in the method for manufacturing a sheet for a carrier tape in the scope of application for a patent, in the punching step, the punching tool is used to press the belt-shaped sheet in the second round after the second round. Before the position correction guide controls the position of the second recess, the position of the feed hole is controlled by the guide pin. For example, the manufacturing method of a sheet for a carrier tape according to item 27 of the patent application, wherein if the maximum amount of the position of the second recessed portion controlled by the position correction guide is U (mm), and the feeding If the maximum amount of positional deviation between the central axis of the hole and the central axis of the guide pin is W (mm), then W <U holds. A packaging body comprising: a carrier tape for storing electronic parts, wherein the sheet for producing a carrier tape described in any one of claims 1 to 8 of the scope of patent application is made in such a manner as to include the first recess It is obtained by cutting a predetermined width; and an upper cover tape which seals the opening of the first recessed portion in a state where electronic components are stored in the first recessed portion.