JP3835835B2 - Precision parts storage container - Google Patents

Description

【００１４】
【発明の効果】
本発明によれば、電子部品ホールド性、破断強度及びリール巻きつき性に優れた半導体集積回路装置等の精密部品を収納する精密部品収納容器が得られる。
【図面の簡単な説明】
【図１】本発明の精密部品収納容器の斜視図である。
【図２】本発明の精密部品収納容器の拡大図である。
【図３】図２のＸーＸ’断面の連結部分の概略図である。
【図４】本発明の精密部品収納容器に電子部品を入れたときの断面図である。
【図５】本発明の精密部品収納容器に電子部品を入れたときの平面図である。
【図６】本発明の金型の断面概略図である。
【図７】比較例１の連結部分の概略図である。
【符号の説明】
１ 精密部品収納容器
２ 収納容器
３ 収納容器群
４ 連結部分
５ 中央部孔
６ 位置ずれ防止用突起物
７ 位置決め枠
８Ａ スプロケットホール
８Ｂ スプロケット
９ 電子部品
１０ リード
１１ 金型
１２ 成形部
１３ 固定部
１４ 略長方形の孔
１５ テーパー角度
１６ 樹脂流入路[0001]
[Industrial application fields]
The present invention relates to a strip-shaped precision component storage container for storing precision components such as semiconductor integrated circuit devices. More specifically, the present invention relates to a strip-shaped precision component storage container excellent in holdability, breaking strength, and reel winding property.
[0002]
[Prior art]
In the conventional belt-shaped precision component storage container, the inner dimension of the storage container is formed with a margin more than the outer dimension of the electronic component in order to facilitate the storage and removal of the electronic component in the storage container. For this reason, when the electronic component is stored, an unnecessarily large gap is generated between the electronic component and the inner surface of the storage container, and a phenomenon occurs in which the electronic component moves in the storage container due to vibration during transportation.
Therefore, when such movement of precision parts occurs and the vibration or impact applied to the belt is large, the precision parts also collide violently with the inner surface of the storage part, and the lead from which the precision parts project. Is deformed by this collision, and in the case of remarkable, the lead is broken. In particular, when the electronic component moves rotationally with movement, there is a drawback that the lead is very easily deformed because a force in the lateral direction acts on the protruding direction of the lead.
[0003]
[Problems to be solved by the invention]
As a result of various studies to eliminate the above-mentioned drawbacks, the present inventors have found that at least one substantially rectangular hole is formed between the storage containers in a storage container composed of a reel-wound strip that is linearly connected. The sprocket holes that are installed and attached to the transport mechanism along at least one side edge of the belt-like object reach the belt-shaped precision component storage container provided at regular intervals in the length direction. In addition, it is possible to easily store and take out precision parts by installing protrusions for preventing misalignment of stored items that are projected inward from the inner side surface of the storage container at the inner four corners of the storage container. On the other hand, the present inventors have found that the deformation and breakage of the lead can be prevented and reached the present invention.
[0004]
[Means for Solving the Problems]
That is, the first invention of the present invention is a reel-wound belt-like material in which a plurality of storage container groups each consisting of a plurality of storage containers are linearly connected, and at least one substantially rectangular shape is formed between the storage containers. In a precision component storage container that is used by heat-sealing a cover tape in which holes are installed, along a side edge of at least one of the strips, and sprocket holes that are attached to and detached from the transport mechanism are provided at regular intervals in the length direction. A storage container group consisting of a plurality of storage containers and a storage container group consisting of a plurality of storage containers newly formed next are side portions in the width direction of the strips of the last storage container in the longitudinal direction of the storage container group. And the side part in the width direction of the band-like material of the frontmost storage container in the longitudinal direction of the storage container group to be newly formed next is formed by injection molding so as to be joined in the longitudinal direction of the belt-like object. Precision parts Paid container. It is.
[0005]
A second aspect of the present invention is a reel-wound belt-like object in which a plurality of storage container groups each including a plurality of storage containers are linearly connected, and at least one substantially rectangular hole is formed between the storage containers. Installed at the four inner corners of the storage container, and has protrusions for preventing the misalignment of stored articles projecting so as to be located inward from the inner side surface of the storage container, and at least one side edge of the belt-like object A precision component storage container that is used by heat-sealing a cover tape with sprocket holes that are attached to and removed from the transport mechanism at regular intervals in the length direction. The storage container group consisting of a plurality of storage containers is formed in such a manner that the lateral side portion of the band-like object of the rearmost storage container in the longitudinal direction of the storage container group and the forefront of the next newly formed storage container group in the longitudinal direction. Department storage capacity Precision parts storage container and the side portions in the width direction of the web of which is characterized in that made by injection molding so as to bind in the longitudinal direction of the web. It is.
[0006]
Hereinafter, the present invention will be described in detail.
The precision component storage container of the present invention is preferably manufactured by injection molding, but can also be manufactured by vacuum forming, pressure forming or press forming a plastic sheet.
Hereinafter, although the precision component storage container by an injection molding method is demonstrated, this invention is not limited to this.
FIG. 1 is a perspective view of a strip-shaped precision component storage container of the present invention. For example, when the storage container group is composed of five storage containers shown in FIG. 1, and this storage container group is connected by injection molding to form a belt-like body, specifically, the schematic diagram of FIG. As shown, this is done in a combined manner with overlapping shapes. That is, a plurality of connecting containers 4 connected in a straight line are connected by a connecting portion 4 that connects five storing containers 2 connected in a straight line.
As shown in FIG. 2, at the four inner corners of the storage container 2, there are protrusions 6 for preventing the misalignment of the stored articles projecting so as to be located inward of the inner surface of the storage container, and positioning frames 7 are provided at the bottom of the container. At the same time, a central hole 5 is provided at a substantially central portion of the bottom of the container. A substantially rectangular hole is provided between the storage containers, and along the side edge of the storage container 1, sprocket holes 8A that are attached to and detached from the transport mechanism are provided at regular intervals in the length direction.
[0007]
Therefore, according to the storage container having the above configuration, when the electronic component is stored in the storage container as shown in FIGS. 4 and 5, the electronic component 9 is positioned at the bottom of the storage container by the positioning frame 7. When the cross section of the positioning frame 7 is viewed, the upper side has a shape that is the same as or shorter than the lower side.
In order to reduce the movement amount of the electronic component in the positioning frame 7, it is desirable that the inner taper angle of the cross section of the frame 7 is substantially equal to the taper angle of the lower section of the electronic component body. Further, the inner end of the positioning frame 7 approaches the electronic component 9, and the gaps in the vertical and horizontal directions and in the rotation direction between the misalignment prevention protrusion 6 and the electronic component 9 are reduced. The shape of the misregistration prevention rib is not necessarily limited to the illustrated shape. Accordingly, even if the electronic component 9 moves in the storage container, the amount of movement is extremely small in this storage container, and the lead is hardly deformed even when the lead 10 of the electronic component collides with the inner side surface of the storage container. Absent.
In the container for storing precision parts according to the present invention, a center hole 5 is provided at a substantially central part of the bottom of the container in order to facilitate the insertion and removal of the precision parts from the container for storage.
[0008]
The resin used in the container for storing precision parts of the present invention is preferably a thermoplastic resin, specifically, an olefin resin such as polypropylene and polyethylene, an impact-resistant styrene resin, a styrene-butadiene block copolymer, a polyphenylene ether resin. Polycarbonate, MMA resin, PET resin and the like.
The container for storing precision parts of the present invention preferably has at least a surface having conductivity, and for forming the container, it is usually to use a composition imparted with conductivity by kneading a conductive filler into a resin. preferable. Further, the conductive filler for imparting conductivity is not limited to carbon black, and may be other fillers such as carbon fiber. Further, not only a kneading type resin but also a surface coating type may be used.
In the present invention, it is particularly preferable to use polypropylene containing carbon black.
Although there is no restriction | limiting in particular in the thickness of the container for precision components accommodation, Usually, it is 0.15 mm or more, Preferably it is 0.2 mm or more.
[0009]
There is no restriction | limiting in particular in the manufacturing apparatus used for this invention. In the injection molding, as shown in FIG. 6, the mold 11 is fixed so that the molding unit 12 (part surrounded by a dotted line) for molding the storage container group and the molded storage container group are moved to the upper part of the mold and fixed. It is composed of two parts of a part 13 (a part surrounded by oblique lines). The molded part and the fixed part are preferably positioned linearly in the mold. At the center of the fixed part, a sprocket 8B for transport and a motor for rotating the sprocket are attached.
After the container group is injection-molded in the mold, the sprocket 8B is rotated and transported to the upper part of the mold, and a part of the transported storage container group is fixed to the fixed portion, and is positioned at the lowermost end of the storage container group. After holding only the side portion closest to the molded portion of the storage container to the molded portion, the mold is closed and molded, and the storage container group in the fixed portion and the newly formed storage container group replace the side portion of the storage container. To join through. By continuing this operation, a container for storing precision parts, which is a reel-wound belt-shaped object made of a storage container, is manufactured.
[0010]
The precision component storage container of the present invention is a strip-like belt that can be wound on a reel, and is suitably used as a carrier tape by heat-sealing a cover tape or the like after placing the precision component in the storage container.
[0011]
【Example】
Hereinafter, the present invention will be described in detail based on examples.
Example 1
Using a polypropylene resin composition containing carbon black, a precision part storage container in which a plurality of storage containers shown in FIG. 1 were linearly connected by injection molding was prepared using a mold shown in FIG. The precision component storage container was provided with a substantially rectangular central hole, a sprocket hole, a protrusion for preventing misalignment of the storage object and a positioning frame between the storage containers, and had a width of 24 mm and a storage container distance of 20 mm. The evaluation results are shown in Table 1.
Comparative Example 1
In the same manner as in Example 1, as shown in FIG. 7 by injection molding, coupling is performed in the middle of the storage container, and there is no positioning frame on the substantially rectangular hole, the protrusion for preventing misalignment of the stored object, and the container bottom. A precision parts container was created. The evaluation results are shown in Table 1.
[0012]
(Evaluation methods)
(1) One electronic component of QFP type (10 x 10) with a body thickness of 1.5 mm is stored in each of five electronic component holdability storage containers, and an antistatic type cover tape (ALS- manufactured by Denki Kagaku Kogyo Co., Ltd.) (AS type) was used to heat seal the upper part of the storage container, and then the storage container was rotated at 60 rpm for 5 minutes, and the lead bending state of the electronic components in the container was visually evaluated.
(2) Breaking strength storage container consisting of five containers, and a belt-shaped storage container with a connecting part is pulled and stored at a speed of 200 mm / min at one end with a fulcrum distance of 90 mm at INSTRON MODEL1122. The stress generated when the container broke was measured.
(3) Reel winding property A belt-shaped precision component storage container containing electronic components was wound around a reel, and it was evaluated whether or not the storage container was broken.
[0013]
[Table 1]

[0014]
【The invention's effect】
According to the present invention, it is possible to obtain a precision component storage container that stores precision components such as a semiconductor integrated circuit device having excellent electronic component holdability, breaking strength, and reel winding property.
[Brief description of the drawings]
FIG. 1 is a perspective view of a precision component storage container according to the present invention.
FIG. 2 is an enlarged view of the precision component storage container of the present invention.
FIG. 3 is a schematic view of a connecting portion of the XX ′ cross section of FIG. 2;
FIG. 4 is a cross-sectional view of an electronic component placed in the precision component storage container of the present invention.
FIG. 5 is a plan view when an electronic component is placed in the precision component storage container of the present invention.
FIG. 6 is a schematic sectional view of a mold according to the present invention.
7 is a schematic view of a connecting portion of Comparative Example 1. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Precision component storage container 2 Storage container 3 Storage container group 4 Connection part 5 Center part hole 6 Protrusion 7 for position shift Positioning frame 8A Sprocket hole 8B Sprocket 9 Electronic component 10 Lead 11 Mold 12 Molding part 13 Fixing part 14 Approximate Rectangular hole 15 Taper angle 16 Resin inflow channel

Claims (2)

It is made of a reel-wound belt-like object in which a plurality of storage container groups consisting of a plurality of storage containers are linearly connected, and at least one substantially rectangular hole is provided between the storage containers, and at least one of the belt-like objects A precision component storage container that is used by heat-sealing a cover tape in which sprocket holes that are attached to and detached from the transport mechanism are provided at regular intervals in the length direction along the side edges of the storage container group. Next, a storage container group composed of a plurality of newly formed storage containers includes a side surface portion in the width direction of the strip of the last storage container in the longitudinal direction of the storage container group and a storage container group to be newly formed next. A precision component storage container, which is formed by injection molding so that a side surface portion in the width direction of a band-like object of a front-most storage container in the longitudinal direction is joined in the longitudinal direction of the band-like object. It consists of a strip-wound belt-like object in which a plurality of storage container groups consisting of a plurality of storage containers are linearly connected, and at least one substantially rectangular hole is installed between the storage containers. A sprocket hole having protrusions for preventing misalignment of the stored articles projecting so as to be located inward of the inner side surface of the storage container, and being attached to and detached from the transport mechanism along at least one side edge of the belt-like object Is a precision component storage container that is used by heat-sealing a cover tape provided at regular intervals in the length direction, and is composed of a storage container group consisting of a plurality of storage containers and a plurality of newly formed storage containers. The width of the side of the storage container group in the longitudinal direction of the storage container group in the longitudinal direction of the storage container group and the width of the band of the storage container group in the longitudinal direction of the storage container group to be newly formed next Direction side Precision parts storage container parts and which is characterized in that made by injection molding so as to bind in the longitudinal direction of the web.

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