JPH0240052Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a winding reel, and more specifically, the invention improves the winding operability of the wound material, is easy to carry, and is easy to manufacture. The present invention relates to a take-up reel that is also excellent in strength.

(Prior art and its problems) This type of take-up reel winds up a wire or strip and then rolls it using a circular flange or transports it on a trolley or the like. .

However, in the case of take-up reels for winding narrow metal strips such as lead frame strips for semiconductor devices, the take-up reels themselves are narrow and flat; Since it is a heavy item weighing approximately 50 kg,
It is unstable when rolled and transported, and the flange part is easily deformed and soiled.On the other hand, there is no handhold when placing it on a trolley, etc., making it difficult and dangerous.

Furthermore, when winding this type of metal strip, a winding shaft with a diameter as large as 50 cm is used to minimize curling, deformation, etc. of the metal strip. Preparing a large and narrow winding shaft was troublesome in manufacturing.

Therefore, the present invention was devised to solve the above-mentioned problems.The purpose of this invention is to make it possible to easily transport the rolled material even if the weight becomes large after winding it, and to make it easy to manufacture. To provide a take-up reel that is also excellent in strength.

(Means for Solving the Problems) In the present invention for the above-mentioned purpose, in a take-up reel in which a cylindrical take-up shaft is used as a spacer and large-diameter flange plates are fixed to both ends of the take-up shaft, at least one of the flange plates is fixed. A through hole into which one or more fingers can be inserted is provided on one end of the winding shaft, and a groove is formed on one end of the winding shaft, and a groove is formed on the other end of the winding shaft. A plurality of molded pieces having the same shape and an arcuate cross section each having a protrusion that can fit into the groove are joined and formed by fitting the corresponding protrusion into the groove of an adjacent molded piece, and the molded pieces have at least It is characterized in that it is screwed to the flange plate at positions on both sides of the joint and on both sides of the through hole.

(Function) Since the winding shaft is formed by assembling a plurality of arc-shaped molded pieces of the same shape, even a winding shaft with a large diameter can be easily formed. Also, even if the winding shaft is divided in this way, the adjacent molded pieces engage with each other on their end surfaces, so when winding up,
Even if external force is applied during transportation, the joint will not shift in the radial direction and create a step. In addition, the molded piece is screwed to the flange plate on both sides of the joint and on both sides of the through hole, so even when transporting the reel by inserting your fingers into the through hole and placing your hand on the winding shaft, it is difficult to wind the reel. Coupled with the fact that the shaft is tightly wound around the wound material, there are no problems such as deformation.
Sufficient strength can be secured.

Furthermore, even if the weight of the rolled material increases after it has been wound, it can be easily transported by inserting your fingers through the through hole and placing your hand on the winding shaft.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail based on the accompanying drawings.

FIG. 1 is a front view of the take-up reel 10, and FIG. 2 is a sectional view taken along the line X--X in FIG.

In the figure, reference numeral 12 denotes a flange plate made of FRP and approximately 80 cm in diameter, which is fixed to both ends of a cylindrical winding shaft 14 with screws 16, respectively.
Reference numeral 18 denotes a rotation bearing, which is screwed to the center of the flange plate 12, and a support shaft of a winding device, such as a turntable (not shown), is inserted through the central hole and supported.

The outer surface of the flange plate 12 is formed such that a central portion that comes into contact with a winding device such as a turntable projects outward in a table-like shape to form a protruding portion 20, and a peripheral portion 22 outside this protruding portion 20 is recessed. , the whole is integrally formed with a substantially uniform thickness. Therefore, on the contrary, the inner surface of the flange plate 12 is formed so that the peripheral portion 22 is convex inwardly and the central portion is concave. The winding shaft 14 is located on a convex portion of the inner surface of the flange plate 12 and fixed with screws, and a winding space of a constant width surrounded by both flange plates 12 is secured outside the winding shaft 14.

The reason why the flange plate 12 is formed to have a substantially uniform thickness as described above is to avoid thick portions and reduce the weight of the entire take-up reel 10.

Reinforcement ribs 24a, 24b, and 24c are provided concentrically and integrally on the concave surface of the peripheral portion 22 on the outer surface of the flange plate 12. The outermost reinforcing rib 24a is provided at the edge of the peripheral portion 22 described above. Therefore, even if the flange plate 12 of the take-up reel 10 is placed perpendicular to the floor surface and rolled, the edge of the flange plate 12 will not be deformed. It has sufficient strength without being damaged or broken. Note that the peripheral edge of the inner surface of the flange plate 12 is chamfered so that the wound material can easily enter. 26
are radial ribs, and the above-mentioned reinforcing ribs 24a, 2
4b and 24c are connected. Concentric reinforcing ribs 28a, 28b and radial ribs 30 similar to those described above are integrally provided on the inner surface of the protrusion 20 of the flange plate 12 to reinforce the flange plate 12.

In this way, the flange plate 12 itself is formed into a bent structure with the center portion protruding outward, giving it strength, and the concentric reinforcing ribs and radial ribs prevent the flange plate 12 from being distorted. Although the flange plate 12 is thin, it has great strength.

Reference numeral 32 denotes a through hole provided at a position where the reinforcing rib 24c on the concave surface of the peripheral portion 22 of the flange plate 12 and the radial ribs 26, 30 intersect. It is sized so that it can be inserted. A reinforcing rib 34 is also provided at the periphery of the through hole 32. In this way, the through holes 32 are provided at the intersections of the reinforcing ribs 24c and the radial ribs 26, 30, and the reinforcing ribs 34 are provided on the periphery, so that the strength of the flange plate 12 is not impaired. The through hole 32 may be provided only on one side of the flange plate 12, or may be provided on both sides. Moreover, the number is not particularly limited.

FIG. 3 shows the configuration of the winding shaft 14, which is formed by joining a plurality of molded pieces of the same shape divided into arc shapes as shown in the figure.

The one shown in the figure is molded using ABS resin into a 1/4 arc shape and thicker in the center, and has a protrusion 36 on one end and a protrusion 36 on the other end. A recessed groove 38 into which it can be fitted is formed.
40 is a screw hole. However, the above molded piece was
The winding shaft can be constructed by joining the protrusions 36 so as to fit into the grooves 38 of the adjacent ones and fixing them to the flange plate 12 with screws. In this case, the central thick part 42 of the molded piece is positioned so as to cross the through hole 32 of the flange plate 12, as will be described later. 42 is advantageous in terms of strength when lifting it by hand. Further, the joint between the protrusion 36 and the groove 38 is set to almost match the position of the radial rib 26 of the flange plate 12, and each end of the molded piece is screwed to the flange plate 12 at both sides of the radial rib 26. is preferable in order to supplement the strength of the joint.

The molded pieces are also screwed to the flange plate 12 on both sides of the through hole 32 of the flange plate 12. The inner surface of the molded piece within this through hole 32 is formed into a handhold portion of the reel conveying portion.

By dividing and molding the winding shaft in this way, even large-diameter products can be easily molded using a simple mold.

This embodiment is configured as described above.

For example, when winding a lead frame strip, the take-up reel 10 is set on a winding device such as a turntable, the starting end of the lead frame strip is inserted between the flange plates 12, and the through hole 32 is inserted.
position, insert a finger through the through hole 32, fix the starting end onto the winding shaft 14 using an appropriate adhesive tape, and automatically wind the lead frame strip. In this case, a turntable or the like is provided with one or more protruding shafts (not shown), and the protruding shafts are inserted into the central halves of the corresponding one or more through holes 32 so as to fit around the edges of the through holes 32. By locking, the take-up reel 10 can be rotated in synchronization with a turntable or the like. During winding, the winding state can be confirmed through the through hole 32.

After winding the lead frame strip, insert your finger into the through hole 32 inside the winding shaft 14 where the lead frame strip is not wound.
You can carry it by holding your hand on the inside.

The load at this time is mainly borne by the screws fixing the molded piece to the flange plate 12 at positions immediately adjacent to both sides of the through hole 32.

Furthermore, since the molded pieces are screwed on both sides of the joint, there is no possibility that the joint will shift and create a step.

Note that when the take-up reel 10 is empty, the through hole 3
Needless to say, it is also possible to carry the outer half of 2 by hand.

Furthermore, in the above embodiment, the flange plate 12 is
Since it is made of FRP, it is easy to form and lightweight, and even if the wound material is a metal strip such as a lead frame strip, the inner surface of the flange plate 12 is scraped off at the edge, and the shavings are removed. There is no risk of adhesion to the surface of the lead frame strip due to static electricity, etc.

Various preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-mentioned embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. It is.

(Effects of the invention) As described above, the take-up reel according to the invention provides the following effects.

Since the winding shaft is formed by assembling a plurality of arc-shaped molded pieces of the same shape, even a winding shaft with a large diameter can be easily formed. Also, even if the winding shaft is divided in this way, the adjacent molded pieces engage with each other on their end surfaces, so when winding up,
Even if external force is applied during transportation, the joint will not shift in the radial direction and create a step. In addition, the molded piece is screwed to the flange plate on both sides of the joint and on both sides of the through hole, so even when transporting the reel by inserting your fingers into the through hole and placing your hand on the winding shaft, it is difficult to wind the reel. Coupled with the fact that the shaft is tightly wound around the wound material, there are no problems such as deformation.
Sufficient strength can be secured.

Furthermore, even if the weight of the rolled material increases after it has been wound, it can be easily transported by inserting your fingers through the through hole and placing your hand on the winding shaft.

[Brief explanation of the drawing]

The drawings show a preferred embodiment of the present invention, with FIG. 1 showing its front view and FIG. 2 showing its sectional view taken along the line X--X. FIG. 3 is an explanatory diagram showing divided pieces of the winding shaft. 10... Take-up reel, 12... Flange plate,
14... Winding shaft, 16... Screw, 18... Bearing,
20...Protrusion part, 22...Peripheral part, 24a, 24
b, 24c...Reinforcement rib, 26...Radial rib,
28a, 28b...Reinforcement ribs, 30...Radial ribs, 32...Through holes, 34...Reinforcement ribs, 36...
Protrusion, 38...concave groove, 40...screw hole, 42...
Thick part.

Claims (1)

[Claims for Utility Model Registration] In a take-up reel in which a cylindrical take-up shaft is used as a spacer and large-diameter flange plates are fixed to both ends of the take-up shaft, an end face of the take-up shaft is attached to at least one of the flange plates. A through hole into which one or more fingers can be inserted is provided across a part of the winding shaft, and the winding shaft has a concave groove formed on one end surface and a protrusion that fits into the concave groove on the other end surface. A plurality of molded pieces having the same shape and having an arcuate cross section are joined and formed by fitting protrusions corresponding to grooves of adjacent ones, and the molded pieces are attached to at least both sides of the joint part and A take-up reel characterized in that the take-up reel is screwed to a flange plate at positions on both sides of the through hole.