JPH09207964A - Separating method for top tape for carrier tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a carrier tape from being cut or delaminated even when the peeling strength of the sealed part is increased, and perform a stable peeling by a method wherein in front of a peeling utensil to peel a top tape, a slit is put at both internal sides of a both-edge sealed part, and only the central part of the top tape being divided into three, is taken up. SOLUTION: Before a top tape 2 is separated from an embossed carrier tape 1, in front of a utensil 12 for peeling, slits are put in parallel with the feeding direction of the carrier tape 1 by a slit blade 13 being provided inside of a sealed part 3 of both edges of the carrier tape 1 to place the top tape 2 under a state wherein the width can be divided into three, and the carrier tape 1 is advanced. By taking up only the central part of the top tape 2 which are divided into three in the feeding direction at the leading end of the utensil 12 for peeling, by a top tape taking up part 6, only the inside of the slits on both edges is peeled, and the sealed part 3 on both edges of the sealed part 3 are carried together with the carrier tape 1 without trouble by a pin roll 5 while not being broken or peeled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of peeling a top tape used as a cover material of an embossed carrier tape for accommodating and transporting surface-mounted parts such as various electronic parts and precision parts from the carrier tape. .

[0002]

2. Description of the Related Art Conventionally, a surface mount component is carried by a carrier tape which is housed in an embossed portion of an embossed carrier tape, sealed with a top tape and wound on a reel. When using surface mount components, the top tape is peeled off from the carrier tape and taken out. As a method of peeling the top tape, as shown in FIG. 3, the sealing portion is generally peeled in the direction opposite to the feeding direction of the carrier tape. Further, the structure of the tape cassette used at this time is as shown in FIG. 4, and the end of the top tape 2 is peeled off while the sprocket hole 4 punched in the embossed carrier tape 1 is fed by a certain amount by the pin roll 5. It is folded back at the tip of the jig 12 and wound on the top tape winding portion 6 while peeling off the sealing portion in the direction opposite to the carrier tape feeding direction.

[0003]

When the top tape is peeled from the embossed carrier tape by such a conventional method, if the peeling strength of the sealing portion is too strong, the top tape will be cut and the carrier tape will be fed by a fixed amount. However, the top tape does not peel off, parts cannot be taken out, the tape cassette stops, or the delamination that causes the inside of the top tape to break while peeling the top tape widens its width. Then, the peeling strength of the sealing part exceeds the peeling strength of the tape cassette and the tape cassette stops, or the delamination occurs and the film that is destroyed in the top tape layer remains on the surface of the embossed carrier tape. The problem that parts cannot be taken out and the tape cassette stops completely There was.

[0004]

In order to solve such a problem, the present inventors have eliminated the work itself of peeling off the entire surface of the top tape, and the top tape is sealed at both edges of the embossed carrier tape. We thought that it is possible to eliminate the breakage of the top tape and the occurrence of delamination by inserting a three-division slit while leaving the part, and we completed the present invention by checking the various conditions, the gist of which is the embossed carrier tape As a method for peeling a top tape that is sealed at both edges, a front side of a peeling jig that peels the top tape with a tape cassette is slit on both insides of the both-edge sealing portion, and a top tape divided into three parts is formed. A method for peeling a top tape for carrier tape is characterized in that only the central portion is wound up.

The present invention will be described in detail below with reference to the drawings. FIG. 1 (a) is an explanatory view showing an embodiment in which a top tape is peeled off by a tape cassette according to the present invention, and FIG. 1 (b) is an enlarged explanatory view of a slit insertion portion of FIG. 1 (a). . The embossed portion of the embossed carrier tape 1 is loaded with an electronic component or the like, the top tape 2 is covered, and both edges of the embossed portion are sealed by heat welding or the like to form a carrier tape. To take out the parts, the carrier tape is hung on the tape cassette. At this time, the method of feeding the embossed carrier tape 1 by a certain amount is to mount the sprocket holes 4 provided on one side or both sides of the embossed carrier tape 1 on the pin roll 5 and rotate the pin roll rotation shaft. When 7 is pushed in the direction of the arrow, the pin roll 5 rotates in the direction of the arrow and the embossed carrier tape 1 is fed. At the same time, the top tape winding section 6 rotates in the direction of the arrow by the shaft 9 connecting the pin roll rotating shaft 7 and the top tape winding rotating shaft 10, and the top tape 2 is wound while peeling the top tape 2 from the carrier tape.

The greatest feature of the present invention is that before the top tape 2 of the carrier tape is peeled from the embossed carrier tape 1, it is installed before the peeling jig 12 and inside the sealing portions on both edges of the carrier tape. A slit is formed by the slit blade 13 in parallel with the carrier tape feeding direction, the width of the top tape can be divided into three parts, the carrier tape is advanced, and the top end of the peeling jig 12 divides the top tape 2 into three parts in the feeding direction. By winding only the center portion formed by the top tape winding portion 6, only the inside of the slit portions on both edges are peeled off, and the sealing portions on both edges of the carrier tape are not broken or peeled off, and the embossed carrier tape is formed. It is sent together with 1 by the pin roll 5. At this time, only the top tape 2 needs to be divided into three parts, and the embossed carrier tape 1 needs to be continuously conveyed through the sprocket hole 4.
Therefore, it is preferable that the top tape 2 is completely cut and the embossed carrier tape 1 is cut by 10% to 50% of its thickness. If it is less than 10%, the top tape may be incompletely divided into three parts, and if it exceeds 50%, the embossed carrier tape may be partially divided into three parts, so that the conveyance does not proceed smoothly. As for the installation position of the slit blade 13 in the width direction, if the slits do not enter the sealing portions 3 at both edges and the embossed portion of the embossed carrier tape 1 is not covered, the parts are damaged. Nonetheless, it is preferable.

The sealing portion 16 of the top tape 2 thus slit is sent as it is attached to the sealing portion of the embossed carrier tape 1, and only the central portion divided into three parts is used for the top tape peeling jig 12. Top tape winding section 6 via
Will be wound up. Further, the top tape peeling / peeling jig 12 is a plate-shaped tool provided on the carrier tape to be conveyed, and the clearance 14 between the slit blade 13 and the top tape peeling / peeling jig 12 (see FIG. 1A). After slitting, the central portion is free, so it is preferable that the central portion be as small as possible, and it is preferably 3 mm or less depending on the pitch of the embossed portion. In this way, the slit blade 13 can be installed in the currently used tape cassette, and the top tape winding section 6 can be used as it is.

As for the sectional shape of the slit blade used in the present invention, the single-edged blade shown in FIG.
Either of the two blades shown in (b) may be used, and the blade material is
Examples include steel, ceramics and hard plastics.
The shape of the cutting edge may be linear or circular. Further, as a method of cutting without directly contacting the top tape, it is also possible to cut only the top tape as the surface layer by adjusting the output using a laser.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The function of the present invention is to use a method in which the top tape of a carrier tape is slit into three parts at the sealing part and other parts and then peeled off. The lower limit is almost irrelevant, and the lower limit only needs to specify the limit at which the top tape is not peeled off due to the weight of the parts, and the upper limit can be set to any number. In this way, the top tape break and delamination that currently cause the tape cassette to stop can be eliminated.

[0010]

EXAMPLES Hereinafter, embodiments of the present invention will be specifically described with reference to examples, but the present invention is not limited thereto. (Example) Tape cassette (width of embossed carrier tape 24 mm x embossed carrier tape pitch 20)
mm) and attach the NT cutter blade (product name of NT Co., Ltd.) at an angle of 45 ° with the top tape, and the blade edge is 40% of the thickness 0.3 mm of the embossed carrier tape, that is, 0.
It was installed so that it could enter up to 18 mm. The installation width was 19 mm, and two blades were connected with a metal rod so that the width was constant. The clearance 14 between the top tape peeling jig and the NT cutter blade was 2 mm. The top tape used is
Total thickness of product number SP82 (trade name of Shin-Etsu Polymer Co., Ltd.) 0.04
6 mm and a total thickness of 0.061 mm of product number SP825A (trade name of Shin-Etsu Polymer Co., Ltd.) were used. The tape cassette was fed at a feed rate of 10 mm, and the top tape was heat-welded to the embossed carrier tape, and the peel strength was set to a central value of 30 gr. This is 0.12,
0.48, 1.20, 2.40, 3.20, 4.80, 6.40, 9.60, 12.80, 14.40, 19.
The top tape was peeled off using the above tape cassette at a speed of 20 m / sec. For comparison, peeling was performed at the above speed by a conventional method without using a slit blade. Table 1 shows the test conditions and the results. In addition, the central value of peel strength is 1
Adjusting to 0, 20, 30, 50, 80, 100 gr, peeling speed 12m
/ Sec was compared with the conventional method. Table 2 shows the test conditions and the results. According to the present invention, the peeling rate can be improved as compared with the conventional method, and there is no cutting or delamination.

[0011]

[Table 1]

[0012]

[Table 2]

[0013]

EFFECTS OF THE INVENTION According to the present invention, faster peeling is possible as compared with the conventional method, and even if the peeling strength of the sealing portion is increased, the carrier tape is not cut or delaminated, and stable peeling is achieved. Became possible.

[Brief description of drawings]

FIG. 1 is an explanatory view showing one embodiment of a method for peeling a top tape of the present invention. (A) Schematic side view, (b) Perspective view showing the installation state of the slit blade

FIG. 2 is a drawing showing an example of a sectional shape of a slit blade. (A) Single-edged, (b) Double-edged

FIG. 3 is an explanatory perspective view showing a conventional top tape peeling method.

FIG. 4 is a schematic side view of a conventional peeling method.

[Explanation of symbols]

1 embossed carrier tape, 2 top tape 3 sealing part, 4 sprocket hole 5 pin roll, 6 top tape winding part 7 pin roll rotating shaft, 8 parts picking part 9 connecting shaft, 10 top tape winding rotating shaft 11 tension roll, 12 Top tape peeling jig 13 Slit blade, 14 Clearance between slit blade and top tape peeling jig 15 Top tape peeled part 16 Top tape sealing part, 17 Slit part

Claims (1)

[Claims] 1. A method of peeling a top tape in which an embossed carrier tape is sealed at both edges, which comprises slitting both insides of the both-edge sealing portion before a peeling jig for peeling the top tape with a tape cassette. A method for peeling a top tape for carrier tape, which comprises winding only a central portion of the top tape divided into three parts.