JPH0457776A - Parts-containing zone - Google Patents

Abstract

PURPOSE:To prevent the deflection of a carrier tape and to improve reliability by fixing housings each provided with a parts-containing recess at equal spaces in a beltlike body and by fastening the housing in such manner that one fixed fastening part can be moved on the basis of the other fixed fastening part on both sides of the recess. CONSTITUTION:L-shaped fastening parts 3e, 3f of a package 3 are formed in the manner of passing between the end faces of fixed side fastening long hole 2e and moving side fastening notch 2g and the cavity faces of a metal mold and flowing into the metal mold. When the temperature of a composite-molded package 3 returns to an ordinary temperature, the package shrinks in the direction of the arrow D on the basis of the fixed side fastening long hole 2e longitudinally of a carrier tape 2 and like the arrow E from both directions on the basis of locating lugs 2d, 2f in the width direction of the carrier tape. Thus, the deflection of the carrier tape 2 by the shrinkage at the time of molding is prevented and the pitch of feed holes 2a are maintained accurately so that parts can be supplied in a constant posture, with good accuracy and in a supply position.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a component storage band for storing components such as electronic components and mechanical components.

(Prior Art) Figures 7 to 12 show conventional parts storage bands of this type.
This will be explained using figures.

7 and 8 are a perspective view and a side sectional view showing the main parts of the conventional component storage band 1. FIG.

In FIG. 7, the conventional component storage band 1 has feed holes 2a arranged at equal intervals near the left edge at a pitch shown by dimension line P in the drawing.
, a flexible synthetic resin carrier tape 2 with rectangular window holes 2b formed at equal intervals approximately in the center of the feed hole 2a and the right edge, and an opening 3a that fits the window hole 2b.
The above-mentioned carrier tape 2 is provided with a storage chamber 3b having a flange portion 3c formed around the above-mentioned opening 3a, and the above-mentioned carrier tape 2
It consists of a package 3 made of hard synthetic resin fixed to the storage chamber 3b, and a cover tape 4 that is pasted avoiding the feed hole 2a to prevent the electronic components (not shown) stored in the storage chamber 3b from falling off. has been done.

8, when the above component storage band 1 is molded simultaneously by composite molding of the carrier tape 2 and the package 3, the fastening portion 3d of the package 3 is placed before and after the window hole 2b of the carrier tape 2. It is formed by flowing out through the small fastening hole 2c provided, and fixes both.

FIG. 9 is a plan view of the above-mentioned carrier tape 2, in which feed holes 2a are provided at equal intervals at a pitch P on the edge of one side,
Window holes 2b, which are also provided at equal intervals, and window holes 2a, which are provided at equal intervals, so as to always have a similar relative position to the above-mentioned feed holes 2a.
Two small fastening holes 2c are provided at the front and rear of b.

A component supply device using the component storage band 1 configured as described above will be explained with reference to FIGS. 11 and 12.

FIG. 11 is a perspective view of the one-component supply device, and FIG. 12 is a plan view schematically showing the movement of the component storage belt l.

In FIG. 11, the component supply device is a supply device that winds up and stocks a component storage band 1 in which each package 3 containing electronic components is covered with a cover tape 4, which is rotatably supported on the rear end of the main body. The sprocket wheel 6 that engages with the feed hole 2a and the ratchet wheel 7 arranged at the front end of the main body and fixed to its right end are rotated up and down as shown by arrow A. It consists of a swinging lever 8 that moves, a connecting bar 9, and a ratchet 10 attached to its tip, and is rotated intermittently in the counterclockwise direction shown by the arrow, so that each package 3 of the parts storage band 1 is wound around the sprocket wheel 6. An intermittent drive device is used to stop the parts at the parts supplying position before the parts are supplied, and the cover tape 4 peeled off from the parts storage band 1 is collected. As shown in FIG. 12, the cover tape collection reel 11 is connected to the above-mentioned swing lever 8 by a one-way rotary joint (not shown), and the carrier tape 2 after supplying the electronic components is placed at the rear end. Returning to FIG. 11, the retrieval reel 13 is comprised of a guide roller 12 that guides the reel 12, and a retrieval reel 13 that is coaxially supported with the supply reel 5 and driven in the counterclockwise direction as shown by arrow C.

(Problem to be Solved by the Invention) However, in the above configuration, the carrier tape 2 and the package 3 are completely fixed during composite molding, so as shown in FIG. When the temperature drops to room temperature, the package 3 shrinks due to the difference in shrinkage rate inherent to the resin, and the carrier tape 2 bends, so the feed hole 2
There was a problem that the pitch of a was distorted and wrinkles were formed along the width.

The present invention solves the above problems and provides a highly reliable component storage band in which the carrier tape 2 does not bend.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a fastening hole of a carrier tape as a long hole having a positioning projection protruding forward and backward respectively in the center, and that is movable. It is integrated with the long hole on the side and the window hole.

(Function) With the above configuration, even if the package contracts during composite molding, the carrier tape will not bend because the fastening portion of the movable side long hole can escape freely with the fixed side long hole as a reference.

In addition, the fixed side elongated hole of the package has a position in the longitudinal direction.
Since the positioning protrusions in the center each regulate the center position, the position of the storage chamber at the component removal position can be maintained with high precision.

(Example) Two examples of the present invention will be described with reference to FIGS. 1 to 6.

1 and 2 are a perspective view and a side sectional view showing the main parts of a component storage band 1 showing a first embodiment of the present invention, and this embodiment is shown in FIGS. 7 and 8. The difference from the conventional example is that at the rear of the window hole 2b provided in the carrier tape 2, there is a fixed side fastening elongated hole 2e with a positioning protrusion 2d at the center, and at the front there is also a positioning hole 2e at the center. By forming the movable side fastening notch 2g continuous to the window hole 2b with the protrusion 2f, and by the composite molding mold,
A fastening portion 3e having a cross section formed by flowing through the long hole 2e for fastening on the fixed side and a fastening portion 3f having a cross section symmetrical to the front end of the movable fastening notch 2g. This is the point formed. Since the rest is the same as the conventional example, the same components are given the same reference numerals and their explanations will be omitted.

As shown in FIG. 2, the L-shaped fastening portion 3e of the package 3
and 3f are respectively formed by flowing through the fixed side fastening slot 2e or between the end face of the movable side fastening notch 2g and the cavity surface (not shown) of the mold.

Next, the behavior of the component storage belt 1 of this embodiment during composite molding will be explained with reference to FIGS. 3 to 5.

FIG. 3 is a plan view of the carrier tape 2 of this embodiment, and the hollow arrows and E shown in the figure indicate composite molding j,
This shows the direction of contraction when the package 3 (not shown) returns to room temperature, and in the longitudinal direction of the carrier tape 2, it contracts in the direction of the arrow with the fixed side fastening slot 2e as a reference.
In the width direction, it contracts from both directions as shown by arrow E with reference to the positioning protrusions 2d and 2f.

FIGS. 4(a) and 4(b) are cross-sectional views showing a state in which the package 3 has shrunk in the longitudinal and width directions of the carrier tape 2. In FIG. 4(a), the L-shaped fastening portion 3f
moves freely in the movable side fastening notch 2g, and in FIG. 4(b), the L-shaped fastening part 3e.

It contracts from both sides centering on the positioning protrusion 2d.

This shows a state in which the center position of the package 3 remains unchanged.

Although the behavior of the L-shaped fastening portion 3e has been explained on the fixed side, it is the same on the movable side.

FIGS. 5(3) and 5(b) are plan views of the main parts of the component storage zone 1 showing the states of the package 3 at high temperature and at room temperature, respectively.
The L-shaped fastening part 3e on the fixed side determines the longitudinal position, and the positioning protrusions 2d and 2f determine the center line position, and the shrinkage does not affect the carrier tape 2, so the carrier tape 2 is not bent. Therefore, the pitch of the feed hole 2a does not go out of order, and the pitch of the feed hole 2a does not change to medium or high.

In addition, since the width of the fixed side fastening elongated hole 2e is narrow, the amount of contraction in the longitudinal direction is small, so that the positioning accuracy is not significantly reduced.
Since the width of f is also narrow, the error in the center position is extremely small. Therefore, the package 3 does not wobble in the longitudinal direction and the width direction of the carrier tape 2.

FIG. 6 is a plan view of a carrier tape 2 showing a second embodiment. The difference between this embodiment and the first embodiment shown in FIG. 3 is that the direction of the bag 3 (not shown) is This is a point rotated 90 degrees and fixed. Since the rest is the same as the first embodiment, the same components are given the same reference numerals and their explanations will be omitted. In this embodiment, the longitudinal position of the package 3 is regulated by the positioning protrusions 2d and 2f, but the center line position is moved in the width direction by 172 degrees of shrinkage.

The first and second embodiments may be selected depending on the direction of the electronic component accommodated in the package 3.

(Effects of the Invention) As explained above, according to the present invention, the carrier tape is prevented from being bent due to shrinkage during molding, and the pitch of the feed holes is accurately maintained, so that Parts can be fed at the feeding position.

[Brief explanation of the drawing]

1 and 2 are a perspective view of a parts storage band showing a first embodiment of the present invention, a sectional view of its essential parts, and FIGS. 3 and 4.
5 and 5 are a plan view, an enlarged sectional view and a plan view of the main part for explaining the behavior, FIG. 6 is a plan view of the carrier tape showing the second embodiment, and FIGS. 7 and 8 The figures are a perspective view of a conventional parts storage band and a sectional view of its main parts, FIG. 9 is a plan view of a conventional carrier tape, and FIG. 10 (a)
and (b) are cross-sectional views showing the high temperature and room temperature conditions during composite molding of the parts storage band, Fig. 11 is a perspective view of a parts feeding device using the parts storage band, and Fig. 12 shows its operation. FIG. 2 is a schematic plan view. 1... Parts storage belt, 2... Carrier tape,
2a... feed hole, 2b... window hole. 2c...Small hole for fastening, 2d, 2f...Protrusion for positioning, 2e...Long hole for fastening on fixed side. 2g...Movable side fastening notch, 3...Package, 3a...Opening, 3b...Storage chamber, 3c
...flange part, 3d...tack-shaped fastening part, 3e
, 3f... L-shaped fastening part, 4... Cover tape,
5... Supply reel, 6... Sprocket wheel, 7... Ratchet wheel, 8...
- Swinging lever, 9... Connection bar, 10... Ratchet, 11... Cover tape collection reel, 12...
...Guide roller, 13...Recovery reel. Patent applicant Matsushita Electric Industrial Co., Ltd. Agent Koji Hoshino Fig. 29 Movable (ll'1 to ^ notch Fig. 30 Fuller, Shina Fig. Fig. Fig. 13 UgJII and small reel) Uri..., 1 small il figure Roz〉 Kuko x 2] 1] figure

Claims (3)

[Claims] (1) A component in which a housing with recesses for storing components is fixed at equal intervals to a flexible band-shaped body with equally pitched feed holes on one edge, and the top surface is covered with cover tape. 1. A parts storage band characterized in that the fastening portions for fixing the two on both sides of the recess are fastened such that the other is movable relative to the other. (2) The component storage band according to claim (1), wherein the fastening portion is inserted through a long hole parallel to the side surface of the recess. (3) The component storage band according to claim (2), characterized in that a positioning projection is provided at the center of the elongated hole.