JPS60228263A - Article package - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an article package in which an article is housed between a carrier tape and a cover tape that are integrated by heat sealing.

[Background technology]

As one of the devices for packaging articles such as electronic parts, for example, Sem1 conductor World special edition, B
uyersGuide &Directory, 198
As introduced in October 20, 2003, page 206, a carrier tape sealing device is known. This device has a mechanism in which a carrier tape and a cover tape made of plastic strips are stacked one on top of the other, and both sides of the tape are heated with a heat block to partially melt the tape, thereby sequentially sealing the tape. The carrier tape has article storage portions (pockets) recessed at regular intervals in its longitudinal direction, and articles such as electronic components are stored in the article storage portions.

The article is thus packaged between the carrier tape and the cover tape by said sealing.

By the way, as shown in Figure 1, the present applicant has
An electronic component 1 whose package dimensions are as small as 1 to several digits in length, width, and height is taped between the carrier tape 2 and the cover tape 4. In this case, electronic component 1
is packaged in a recessed article storage section (pocket) 3 provided in the carrier tape 2. For sealing between the carrier tape 2 and the cover tape 4, a heat block 6 having a pair of thin band-shaped sealing ridges 5 provided along both sides of the lower surface is used. The heat block 6 descends in synchronization with the intermittent movement of the carrier tape 2 and the cover tape 4, and presses its pair of sealing protrusions 5 against the cover tape 4 to seal both sides of the article storage section 30. The seal protrusion 5 is heated to a predetermined temperature by a cartridge heater (not shown) built into the heat block 6, and during sealing, the hot-melt adhesive applied to the cover tape 4 is partially melted, and the cover tape 4 and carrier tape 2 are bonded together. Sealing is done. Incidentally, the intermittent movement of the carrier tape 2 is performed using sprocket holes 7 provided at regular intervals on the side of the carrier tape 2.
This is done by rotating a sprocket wheel (not shown) that meshes with the sprocket wheel.

Therefore, sealing is performed for each of the three article storage sections. As a result, the roll portions 8 extend parallel to both sides of the article accommodating portion 3 and discontinuously extend along the longitudinal direction of the carrier tape 2.

However, in such a sealing device, the end of the sealing part 8 may overlap with the end of the adjacent sealing part 8, and the adhesion strength of the cover tape 4 to the carrier tape 2 may vary, causing the taping The inventor of the present invention has revealed that when an article is loaded onto a wiring board or the like using an automatic loading machine, it may be difficult to load the article smoothly.

That is, as described above, sealing is performed discontinuously by the intermittent movement of the carrier tape 2 and the like and the downward movement of the heat block 6 in synchronization with this movement. but,
The sealing should be performed longer to ensure sufficient sealing effect on the two short sides of the article storage section 30, which are several angles apart, and the intermittent transfer of the carrier tape 2, etc. should be carried out between the sprocket hole and the sprocket hole 7. Due to the meshing margin, subtle changes occur, resulting in uneven tape feeding, and as shown in Figure 2, the tape overlaps the adjacent sealing part 8 (the cross-hunted part in the figure is the double sealing part 9). ), or the discontinuity length b becomes wider than the designed discontinuity length α, and the force for peeling off the cover tape 4 from the carrier tape 2 fluctuates. As a result, when the cover tape 4 is peeled off using a tension roller or the like when taking out the electronic component 1 in the loader section of an automatic loading machine, the double sealing section 9 is replaced by the single sealing section 8.
For example, the peeling force is about twice as large as that of . And when this package is torn off,
Since there are parts with no sealing at all, parts with heavy sealing, and parts with double sealing, if the cooling strength of the heavy sealing parts (this strength is also the peeling strength) is F, then the peeling force is It has been found that the electronic component 1 fluctuates from 0 to 2F, and the vibration of the carrier tape 2 due to this fluctuation can cause the electronic component 1 to jump out of the article storage section 3, making it impossible to mount the electronic component 1.

[Purpose of the invention]

An object of the present invention is to provide an article packaging body with high packaging reliability.

- Another object of the present invention is to provide an article package with stable heat sealing strength and less variation in peeling force of the cover tape.

The above and other objects and novel features of the present invention are:
It will become clear from the description of this specification and the accompanying drawings.

[Summary of the invention]

A brief overview of typical inventions disclosed in this application is as follows.

That is, in the article package of the present invention, the discontinuous sealing parts connecting the carrier tape and the cover tape are arranged in a staggered manner on both sides of the tape, with some parts facing each other. The negative side of the tape is always sealed at any position in the longitudinal direction of the tape.

In addition, even if the product package has a double sealing part, the double sealing part is arranged in a staggered manner, so
At each location along the length of the tape, the double sealing portions do not coincide and are present on one side and absent on the other side.

As a result, the sealing strength at each position of the tape is
- Sealing strength due to K only on one side of the heavy sealing part (0
, 5F), - Sealing strength due to both sides of the heavy sealing part (F), - Sealing strength due to the heavy sealing part and double sealing part (1, 5F), and the sealing strength becomes stable, and the packaging In addition, when removing the cover tape when removing electronic components, the peeling force is stable without large fluctuations, so electronic components can be removed from the carrier tape due to vibrations, etc. It is less likely that the parts will pop out, and the automatic mounting of electronic parts can be carried out more stably.

〔Example〕

FIG. 3 is a schematic diagram showing a heat-sealed state of an electronic component according to an embodiment of the present invention, FIG. 4 is a perspective view similarly showing a heat-sealed state, and FIG. 5 is a plan view similarly showing a double-sealed state. .

As shown in FIGS. 4 and 5, the product package of this embodiment has an electronic component 1 with a lid 11 protruding from both sides of a package 100 enclosed between a carrier tape 2 and a cover tape 4. It is a package. In addition, the sealing of this package has a structure in which both sides of the tape are sealed respectively, and the two sealing parts 8 are discontinuous, and each sealing part 8 has a part facing each other and the other part not facing each other. condition, that is, sealed in a staggered manner.

Next, a method for manufacturing such a package will be explained.

FIG. 3 is a schematic diagram showing an outline of the sealing device. As shown in the figure, the carrier tape 2 having the article storage parts 3 at regular intervals is moved intermittently on the guide table 13 by one pitch ω) by the rotation of the sprocket wheel 12, and is transferred to the collection reel 14. It is wound up. Since the sprocket holes 7 of the carrier tape 2 mesh with teeth (not shown) of the tin rocket wheel 12, the carrier tape 2 is moved intermittently by the intermittent rotation of the sprocket wheel 12.

The carrier tape 2 is made of plastic and is spaced at regular intervals (pitch:
p) has an article storage section 3 consisting of a recess. Also,
On one side of the carrier tape 2, sprocket holes 7 with a pitch of p are provided corresponding to the article storage portions 3. The article accommodating portion 3 is a small recess that is sufficient to accommodate the electronic component 1 whose length, width, and height of the package 10 is one to several times. Further, the carrier tape 2 slides on a guide table 13 as shown in FIG. The guide tape /I/13 has a concave central portion, and both sides thereof serve as support portions 15 for supporting both side portions of the carrier tape 20. On the other hand, as shown in FIG. 3, the cover tape 4 made of plastic is unwound from the unwinding reel 46, guided by the guide roller 17, and superimposed on the carrier tape 2, with its tip end on the carrier tape 2. It is sealed with tape 2 and wound around the collection reel 14.

On the other hand, one station of the guide table 13 serves as a sealing station, and a heat block 6 is disposed above the guide table 43. As shown in FIG. 4, this heat block 6 has a rectangular parallelepiped shape, and has a cartridge heater (not shown) built therein. Further, this heat block 6 is attached to the tip of an arm 18 of an elevating mechanism (not shown).
8 is lowered to press a pair of heated seal protrusions 5 provided on the lower surface of the heat block 6 against the cover tape 4.

Although the pair of seal protrusions 5 are provided in parallel, they are offset from each other, with some parts facing each other and other parts not facing each other.

Therefore, when the heat block 6 moves downward once,
One side of one article storage section 3 is sealed, and a portion extending from the second half of the other side of this article storage section 3 to the front half of the subsequent article storage section 3 is sealed. In other words, the parts corresponding to the tips of the sealing part 8 on the negative side are located at the center of the sealing part 8 on the other side, and at which position in the longitudinal direction of the tape. The sealing portion 8 will also exist.

Let us now consider a case where the carrier tape 2 and the like are not fed uniformly. Even with the heat sealing in this embodiment, double sealing may occur. FIG. 5 shows a state in which double sealing occurs. Unlike the technique shown in FIGS. 1 and 2, the double sealing portion 9 occurs at the left and right sides in the longitudinal direction of the tape (carrier tape 2 and cover tape 4 are sealed). The double sealing portion 9 occurs out of alignment. Therefore, the sealing strength (i.e., peel strength) of the tape is as follows: - The sealing strength (0,5F
), - Sealing strength on both sides of the heavy sealing part 80 (
F), one side of the double sealing part 9 and the single sealing part 8
The sealing strength (1,5F) will vary depending on the sum of the single layer and the single layer. This variation in sealing strength is F
The sealing strength is ±0.5F, which is smaller than the sealing strength O~2F of the package shown in FIG. 2 described above, and the sealing strength is stable.

〔effect〕

1. In the package of the present invention, since the sealing portion 8 is present at any position in the longitudinal direction of the tape, the sealing property of the cover tape 4 to the carrier tape 2 is improved, and the sealing property of the cover tape 4 to the carrier tape 2 is improved, and the sealing property of the cover tape 4 is improved during transportation of the package. The electronic component 1 does not fly out due to peeling of the cover tape 4, and the reliability of the packaging is improved.

2. In the package of the present invention, the sealing part 8 is present at any position in the longitudinal direction of the tape, and even if double sealing occurs, the double seam and -IJ sealing parts are not covered by the tape. Since the pressure at each position in the longitudinal direction exists only on one side, the sealing strength, in other words, the peel strength is 0.5F to 1.5F, and the variation is small and stable, so the cover When the tape 4 is peeled off, the peeling strength is stable, and large vibrations of the carrier tape 2 do not occur, and the electronic component 1 is removed from the article storage section 3.

The effect of this is that the automatic mounting of the electronic components 1 can be carried out smoothly.

3. From 1 and 2 above, the present invention has a synergistic effect in that it can provide a package with good packaging performance and excellent performance in taking out electronic components from the package.

Although the invention made by the present inventor has been specifically explained above based on Examples, it goes without saying that the present invention is not limited to the above Examples and can be modified in various ways without departing from the gist thereof. Nor. For example, the discontinuous positions of the sealing are not limited to the above embodiments, and may be freely selected as necessary.

[Application field]

In the above description, the invention made by the present inventor was mainly applied to the packaging technology for electronic parts, which is the background field of application, but the invention is not limited thereto.

The present invention can be applied at least to techniques for wrapping articles with plastic tape.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the main parts of the heat seal adopted by the present applicant, Fig. 2 is a plan view showing the double sealing state, and Fig. 3 is an electronic component according to an embodiment of the present invention. FIG. 4 is a schematic view showing the heat-sealed state, FIG. 4 is a perspective view similarly showing the heat-sealed state, and FIG. 5 is a plan view similarly showing the double-sealed state. 1...Electronic components, 2...Carrier tape, 3...
Article storage part, 4...Cover tape, 5...Seal protrusion, 6...Heat block, 7...Sprocket hole, 8...Sealing part, 9...Double cooling part, 10 ...Package, 11...Lead, 12.
... Sprocket wheel, 13... Guide table, 14... Collection reel, 15... Support part, 16...
... Unwinding reel, 17... Guide roller, 18.
··arm. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. Consisting of a plastic carrier tape containing articles in an article storage section provided on its main surface, and a plastic cover tape overlaid on the main surface of the carrier tape, both sides of which are heated. 1. An article packaging body that is bonded by discontinuous sealing portions formed by seals, wherein the sealing portions on both sides are arranged in a staggered manner so that some of the sealing portions face each other.