JP4511995B2 - reel - Google Patents

Description

The present invention relates to a film carrier tape for mounting electronic components (TAB (Tape Automated Bonding) tape, COF (Chip On Film) tape, T-BGA (Tape Ball Grid Array) tape,
CSP (Chip Size Package) tape, ASIC (Application Specific Integrated Circuit) tape, 2 metal (double-sided wiring) tape, multilayer wiring tape, etc.) (hereinafter simply referred to as “film carrier tape for mounting electronic components” or “film carrier tape”) In relation to various reeling processes such as manufacturing, inspection, and IC chip mounting, a reel that can be accommodated in a state where the tape used for unwinding and winding up the electronic component mounting film carrier tape is protected. .

  With the development of the electronics industry, the demand for printed wiring boards for mounting electronic components such as IC (Integrated Circuit) chips and LSI (Large Scale Integrated Circuit) chips is increasing rapidly. As a mounting method for these electronic components, film carrier tapes for mounting electronic components such as TAB tape, COF tape, BGA tape and ASIC tape, 2 metal (double-sided wiring) tape, and FPC are recently used. The mounting method used is adopted. In particular, in the electronic industry that uses liquid crystal display elements (LCDs), such as personal computers, televisions, and mobile phones, where high definition, thinning, and narrowing of the frame area of liquid crystal screens are desired. ing.

In addition, the demand for film carrier tapes has increased remarkably in the field of print control in printers connected to personal computers.
Such a film carrier tape for mounting electronic components is generally manufactured through various processing steps such as an exposure step, an etching / resist peeling step, a solder resist processing step, an electrical inspection step, and an appearance inspection step. It is.

  By the way, especially in various processing steps at the time of manufacturing, after unwinding the electronic component mounting film carrier tape wound around the reel, the predetermined processing step is performed, and the electronic component mounting is completed. Usually, the film carrier tape is taken up by a take-up reel and conveyed to the next step together with the reel.

  As a reel of an electronic component mounting film carrier tape used for such a purpose, an aluminum reel is preferably used particularly from the viewpoint of strength, dimensional accuracy, and weight reduction in the manufacturing process.

  However, in the case of an aluminum reel, the aluminum metal powder is generated due to the rubbing contact of the reel, and the aluminum metal powder adheres to the tape, possibly causing a fatal short-circuit event. was there.

  Therefore, as disclosed in Patent Document 1, it is also proposed that the surface of an aluminum reel is plated with a magnetic metal such as nickel or a magnetic alloy, and the magnetic metal powder generated by rubbing contact is adsorbed by a magnet. . However, even when the magnetic metal powder is adsorbed by the magnet, it is difficult to completely adsorb the magnetic metal powder, and a part of the magnetic metal powder may remain on the tape surface.

On the other hand, dust generation of metal powder is also avoided by using a resin reel.
However, in the case of a resin reel, for example, in the case of a large reel used at the time of manufacturing a film carrier tape, the length of the tape wound around the reel is as long as 80 m or longer, for example, 120 m. There was a problem that the mold cost was high because the large reel made of resin tended to have insufficient strength. In addition, some side plates may be damaged due to collisions between multiple reels around which the tape is wound. If damage occurs, maintenance cannot be performed due to partial repairs. There was also a problem that the nature was bad.

In addition, in the reel made of resin, the side plate portion of the reel bends during transportation and the distance between the reel side plate portions changes, and as a result, the left and right end portions of the film carrier tape for mounting electronic components move. May cause damage or damage to the wiring pattern of the electronic component mounting portion.
JP 2002-274758 A

  In view of such circumstances, the present invention can maintain substantially the same strength and dimensional accuracy as in the case of a metal reel, without causing problems to the product due to dusting of metal powder, Even if a part of the reel may be damaged, it is possible to replace only the damaged part, and it can be manufactured at a low cost by downsizing the mold structure. It is an object of the present invention to provide a reel capable of preventing damage damage, wiring pattern damage, and the like as much as possible.

The reel according to the present invention is
A resin-made core member around which a long tape is wound;
A spoke member made of resin that is radially arranged at both ends of the core member and restricts movement in the width direction of the tape wound around the core member;
A reel body comprising a ring-shaped member arranged to connect the spoke members,
The ring-shaped member is an annular core member formed in a substantially L-shaped cross section made of metal as a core material;
The annular core member has covered the outside of, and is composed of a substantially L-shaped cross-section to form a synthetic resin cover member to which the inner shape corresponds to the shape of the outer surface of the annular core member,,
The cover member made of synthetic resin is constituted by a divided body having a substantially L-shaped cross-section divided into a plurality in the circumferential direction .

  According to the present invention having such a configuration, the metal annular core member is interposed in the outer peripheral portion of the reel body, and the core member and the annular core member are connected by the plurality of spoke members, so that the predetermined strength is obtained. Thus, damage due to impact or the like can be prevented. Moreover, since all the parts which a tape contacts are resin, there is no possibility that metal dust will generate | occur | produce and this can prevent adhesion to the tape of metal powder.

Further, even if the metal portion is partially included as a core material, the side plate portion that holds both end portions of the tape is constituted by a spoke member, and most of the face plate is secured as a gap, so that the overall weight can be kept small. .
In the present invention, it is preferable that the spoke member and the core member are detachably attached by a screw member.
With such a configuration, the spoke member and the core member can be formed separately, and these can be assembled together, and if damage occurs, only that part can be replaced. it can.

Further, in the present invention, the divided body is composed of an inner divided body arranged on the inner surface side of the reel body and an outer divided body arranged on the outer surface side of the reel body. preferable.

  With such a structure, it is easy to attach and remove the cover member, the mold structure is not complicated, partial replacement is possible, and the manufacturing cost can be reduced.

  According to the present invention, since all the parts that come into contact with the tape can be made of synthetic resin, the metal powder is not generated, and the tape is not short-circuited due to the adhesion of the metal powder. Moreover, since the annular core member is interposed inside the ring-shaped member, a predetermined strength can be ensured. Furthermore, if the spoke member is attached to the core member with a screw, the attachment and detachment can be facilitated and predetermined strength and dimensional accuracy can be ensured.

  Further, since the cover member made of synthetic resin is composed of a divided body, it can be easily attached and detached and can be partially replaced, and the manufacturing cost is reduced due to the simplification of the mold structure.

  Furthermore, since a metal annular core member is interposed inside as a ring-shaped member, even if an external pressure or impact is applied during reel conveyance, the reel side plate portion is prevented from being bent or deformed. Can do. Thereby, the damage damage of the side edge part of the film carrier tape for electronic component mounting, and the damage of a wiring pattern can be prevented.

Embodiments of the present invention will be described below with reference to the drawings.
1 to 3 show a reel 10 according to an embodiment of the present invention.
The reel 10 is used to manufacture and mount a film carrier tape for mounting an electronic component, to mount an electronic component such as an IC chip on the film carrier tape, and to transfer and store a film carrier tape or a film carrier tape mounted with an IC chip. It is a particularly large reel used for winding film carrier tapes, tape-like insulating films, spacer tapes, etc. (hereinafter simply referred to as “long tapes”). .

In the reel 10 shown in FIG. 1, a portion where a long tape (not shown) is wound and brought into contact is all formed of a synthetic resin as described later.
That is, the main body 10a of the reel 10 includes a core member 2 around which a long tape having a length of about 80 to 200 m is wound, and a pair of wheel-shaped side plate forming members disposed on both sides of the core member 2. The side plate forming members on both sides have the same structure.

  The side plate forming members arranged on both sides are composed of a plurality of (six in the embodiment) spoke members 4 arranged in a radial manner and a ring-shaped member 6 that connects these spoke members 4.

The spoke member 4 is formed of a synthetic resin and has a large number of ribs 4a formed on the outer surface. In particular, both end portions of the spoke member 4 serving as attachment portions to the core member 2 and the ring-shaped member 6 are ribs. It is strengthened by reducing the distance between 4a. Moreover, as shown in FIG. 3, the inner surface 4b side of the spoke member 4 is formed flat. As shown in FIG. 2, the width H of the spoke member 4 is set to be relatively wide, so that high strength is maintained even in the spoke member 4 made of resin.

  The core member 2 around which the long tape is wound is formed in a substantially cylindrical shape, and a bearing portion 8 for locking the reel 10 is formed on the shaft core portion. A notch groove 8a is formed on the inner peripheral surface of the bearing portion 8, and the shaft is positioned by the notch groove 8a.

  Furthermore, the rib 2 for attaching the base end side of the spoke member 4 is formed in the core member 2 radially. The number and shape of the ribs 12 are not limited to the examples.

  The ring-shaped member 6 constituting the outer peripheral portion of the reel body 10a may be insert-molded with a metal core material such as an aluminum alloy, a titanium alloy, or a magnesium alloy with a resin such as ABS. As shown, it is composed of an annular core member 14 made of metal and having a substantially L-shaped cross section as a core, and a cover member 15 that is detachably attached to the outside of the annular core member 14.

  It is preferable that the metallic annular core member 14 is made of aluminum or an alloy thereof. Thus, if it is formed from aluminum or its alloy, it is lightweight and can exhibit appropriate strength. On the other hand, the cover member 15 that is detachably attached to the outer side of the annular core member 14 is made of synthetic resin.

  Although it does not specifically limit as resin which forms the cover member 15, For example, ABS, polystyrene, a polypropylene, polyphenylene ether, a polycarbonate, a polyethylene terephthalate etc. can be used.

  On the other hand, the cover member 15 is not a single body, but is constituted by a divided body divided in the circumferential direction. That is, as shown in FIGS. 4A and 4B, one divided body 18 constituting the cover member 15 includes an inner divided body 18a and an outer divided body 18b. And the cover member 15 is comprised by arranging six division bodies 18 which consist of inner and outer division bodies 18a and 18b in this way in the circumferential direction of the annular core member 14.

  Such a divided body 18 is assembled such that the opening end faces of the inner divided body 18a and the outer divided body 18b coincide with each other. It should be noted that an adhesive may be interposed between the opening end faces, or may be assembled by concavo-convex fitting or may be assembled by a screw member or the like.

The reel 10 according to the present embodiment is configured as described above, and the assembly will be described below. This assembly is not limited to the embodiment.
First, the resin core member 2, the resin spoke member 4, and the metal annular core member 14 are formed separately.

  Next, a predetermined number of spoke members 4 are attached to both sides of the core member 2 with screw members 20. The screw member 20 may be a long screw member penetrating on both sides, or may be a separate short screw member 20 for each side.

  In addition, a metal annular core member 14 is attached to the distal end side of the spoke member 4 with a screw member 22. When the annular core member 14 is attached, six divided bodies 18 made of synthetic resin can be simultaneously incorporated on the outer periphery thereof. That is, the spoke member 4 and the annular core member 14 can be assembled while assembling the inner divided other 18a and the outer divided body 18b. In this way, the assembly of the reel 10 is completed.

The annular core member 14 and the six divided bodies 18 can be assembled in advance, and the assembled outer peripheral unit portion can be attached to the spoke member 4.
The position where the divided bodies 18 are connected is preferably the central portion of the spoke member 4. If it does in this way, the both ends of one division 18 can be attached with screw members 22 and 22. In addition, it is necessary to make the front-end | tip part of this screw member 22 not project to a tape accommodating part. Further, when the inner divided body 18a and the outer divided body 18b are attached, an adhesive may be interposed between the end faces of each other.

  According to the reel 10 of the present embodiment configured as described above, the portion in contact with the tape is entirely formed of resin. Therefore, metal powder is not generated by contact or the like. Moreover, metal powder does not adhere to the wound tape. Furthermore, even if it is a large reel, predetermined | prescribed intensity | strength can be exhibited with the metal cyclic | annular core material member 14. FIG. Therefore, the distance between the reel side plates does not change due to bending or the like.

  Furthermore, since the resin cover member 15 is composed of a plurality of divided bodies 18, even if one divided body 18 is damaged or destroyed by an impact or the like, only that portion can be replaced. Therefore, maintainability is good.

  Moreover, since the spoke member 4 is flat and small, and the spoke member 4 and the outer ring-shaped member 6 are separate, the mold structure can be reduced. Therefore, it can be manufactured at low cost. Moreover, even if the spoke member 4 is damaged, only that portion can be replaced.

As mentioned above, although one Example of this invention was described, this invention is not limited to the said Example at all.
For example, in the above embodiment, a large reel used for manufacturing a film carrier tape has been described. Of course, the present invention can be preferably applied to a medium reel such as a customer shipping reel.

Further, the outer surface shape of the core member 2, such as the outer surface shape and the number of spoke members 4, is not particularly limited.
Furthermore, the core member 2 can also be comprised by a division body, and is not limited to the said Example.

  In some cases, a metal core may be interposed inside the spoke member 4.

FIG. 1 is a perspective view of a reel according to an embodiment of the present invention. FIG. 2 is a front view of the reel shown in FIG. 3 is a cross-sectional view taken along the line AA of FIG. FIG. 4 shows a divided member constituting the cover member employed in one embodiment of the present invention, and FIG. 4 (A) is an exploded perspective view of the inner divided member and the outer divided member constituting the divided member. 4 (B) is a perspective view when the inner divided body and the outer divided body shown in FIG. 4 (A) are combined.

Explanation of symbols

2 Core member 4 Spoke member 4a Rib 4b Inner surface 6 Ring-shaped member 8 Bearing portion 8a Notch groove 10 Reel 10a Reel body 12 Rib 14 Annular core member 15 Cover member 18 Split body 18a Inner split body 18b Outer split body

Claims (3)

A resin-made core member around which a long tape is wound;
A spoke member made of resin that is radially arranged at both ends of the core member and restricts movement in the width direction of the tape wound around the core member;
A reel body comprising a ring-shaped member arranged to connect the spoke members,
The ring-shaped member is an annular core member formed in a substantially L-shaped cross section made of metal as a core material;
The annular core member has covered the outside of, and is composed of a substantially L-shaped cross-section to form a synthetic resin cover member to which the inner shape corresponds to the shape of the outer surface of the annular core member,,
The synthetic resin cover member is composed of a divided body having a substantially L-shaped cross section divided into a plurality of parts in the circumferential direction .   The reel according to claim 1, wherein the spoke member and the core member are detachably attached by a screw member. 2. The split body is composed of an inner split body disposed on the inner surface side of the reel body and an outer split body disposed on the outer surface side of the reel body. Reel described in .

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