JPH0650439Y2 - Reel device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reel device such as a slitter for cutting a wide sheet into a plurality of narrow sheets and winding them.

[0002]

2. Description of the Related Art Generally, when a wide sheet material such as a synthetic resin film, paper or aluminum sheet is cut into a plurality of narrow sheet materials and wound up, for example, Japanese Patent Laid-Open No. 61-18662.
Using a slitter having a structure in which a winding device for winding a sheet-like material cut into a predetermined narrow width is placed in a state of being opposed to each other with a touch roller for applying surface pressure interposed therebetween as described in Japanese Patent Publication No. ing. Such a winding device includes, for example, a device as described in JP-A-61-18662.
A winding shaft device for tightening a plurality of cores is installed on the shaft body of the book. When tightening the empty core on the winding device, a mark indicating the end face position of each core is clearly marked on the peripheral surface of the shaft body with magic ink or the like, and the operator visually aligns the core end face with the mark. There is. In such a method, the alignment operation takes a long time, and even if the alignment operation is carefully performed, an error of about 1 mm occurs. In addition, it is necessary to clearly indicate a mark indicating a new position so that the sheet width does not change when the sheet width changes. Further, there is a problem that the positioning mark disappears when the core is attached and detached several times.

Therefore, it has been attempted to install a positioning mechanism as shown in FIGS. However, shaft 1
A state in which the rod 11 is rotatably installed parallel to 0, the positioning member 12 is attached to the rod 11 so as to be movable in the longitudinal direction of the shaft center, and the positioning member 12 is in a position separated from the shaft 10. Then, the cores 50 are supplied to the shaft body 10, and the respective cores 50 are inserted to near the positioning positions. Then, the rod 11 is rotated by a fluid cylinder (not shown) or the like to bring the positioning member 12 into contact with the peripheral surface of the shaft 10.
In this state, the core 50 is brought into contact with the positioning member 12 for positioning, and a tightening mechanism (not shown) is operated to tighten each core 50 integrally with the shaft body 10. In such a positioning mechanism, the rod 11 and the positioning member 12,
A space for installing a rotation mechanism (not shown) and the like is required, and the configuration of the winding device and the configuration of the control device become complicated. Further, when the winding diameter of the sheet-like material becomes large, the positioning member 12 becomes long and is deformed unless it has a rigid shape, so that there is a problem that the positioning accuracy deteriorates.

[0004]

The first problem is that the alignment operation takes a long time, and an error occurs even if the alignment operation is performed with caution, so that it will not be mistaken each time the seat width changes. It is necessary to specify a mark indicating a new position, and the positioning mark will disappear if the core is attached and detached several times.

The second problem is that the structure of the positioning mechanism becomes complicated, and the accuracy of positioning deteriorates as the winding diameter of the sheet increases.

[0006]

In order to solve the first and second problems, a core positioning sputter is attached to the outer peripheral portion of the shaft body.

[0007]

1 is a front view showing an embodiment of a winding device of the present invention, FIG. 2 is a view taken along the line ZZ in FIG. 1, and FIG. 3 is an enlarged sectional view of a stopper mounting portion in FIG. 4 is a view taken along the line YY in FIG. In the figure, reference numeral 1 denotes a shaft, to which a tightening mechanism 2 is attached at a predetermined interval in the longitudinal direction of the shaft center. The tightening mechanism 2 has, for example, a hollow shaft body 1 as shown in FIG. 2 and a plurality of elongated holes formed in the circumferential direction, and the rubber tube 3 and a lug are provided in the hollow portion. 4, the rubber tube 3 is expanded in the circumferential direction by supplying compressed air from the end portion of the shaft body 1 to move the lug 4 into the shaft body 1.
Of the core 50 to press and tighten the inner peripheral surface of the core 50, or a hollow member of the shaft body is internally provided with a moving member having a tapered peripheral surface and a lug, and the moving member is moved by compressed air. It is possible to use one in which the lug is caused to protrude from the peripheral surface of the shaft body by the tapered peripheral surface by moving in the longitudinal direction of the axial center and the inner peripheral surface of the core is pressed to tighten the lug. A dovetail groove 1A having inclined surfaces 1a and 1b is formed on the peripheral surface of the shaft body 1 up to the axial end portion in the axial center longitudinal direction. Reference numeral 5 denotes a stopper which is engaged with the dovetail groove 1A and is attached so as to be movable in the longitudinal direction of the shaft center. The stopper 5 has a vertical positioning surface 5a on one side and a sloped surface 5 on the other side.
b on both sides in the width direction, the sloping surfaces 5c and 5d having a flared end.
And a screw hole 5e is formed therein, and a screw body 6 is screwed into the screw hole 5e. Then, when the screw body 6 is screwed in, there is the screw body 6 as shown in FIG. 4, and when the bottom surface 5f of the groove 1A is pressed, the inclined surface 5 of the stopper 5 is pressed.
There are c and 5d, and they are fixed by contacting the inclined surfaces 1a and 1b of the groove 1A. At this time, the upper portion of the stopper 5 projects from the peripheral surface of the shaft body 1. The protrusion dimension (h) is smaller than the dimension difference (S) between the inner diameter dimension (D1) of the core 50 and the outer diameter dimension (D2) of the shaft body 1 so that the core 50 can be attached / detached and positioned. In addition, it must be equal to or greater than 0.5 mm.

The dovetail groove 1A of the shaft body 1 and the cross-sectional shape of the stopper 5 may be T-shaped as shown in FIG.

When the core 50 is mounted on the above-mentioned winding device, first, the screw body 6 is loosened so that the core 50 can be tightened at the position where the narrow sheet-like material is wound at the outermost end of the shaft 1. Move the stopper 5-1 to the specified position. Then, the screw body 6 is screwed in to fix the first stopper 5-1 to the shaft body 1, and then the second stopper 5-2 is fixed to a predetermined position. And when all the stoppers 5 are fixed,
The core 50 is inserted from the end of the shaft body 1. At this time, when the stocher 5 is positioned downward as shown in FIG. 5, the core 50 can be smoothly inserted without being caught by the stopper 5. With each core 50 in contact with the positioning surface 5a of each stopper 5, compressed air is supplied to the tightening mechanism 2 to cause the lug 4 to project from the peripheral surface to tighten each core 50. The winding device is attached to a winding mechanism of a slitter (not shown), and a wide sheet material is slit into a narrow sheet material and wound. Then, when a predetermined amount of the thin sheet-like material is wound up, the winding shaft device is taken out from the winding mechanism, and the supply of the compressed air to the tightening mechanism 2 is stopped to release the compressed air. The lug 4 is contracted in the axial direction to release the tightening of the core 50. Then, the core 50-1 located at the end of the shaft 1 is sequentially withdrawn. At this time, if the stopper 5 is located above the shaft body 1, the core 50
-2, 50-3 rises along the inclined surface 5b of the stoppers 5-2, 5-3 and climbs over the stopper, and when the stopper 5 is located at the lower part of the shaft body 1, Move around the surface.

When the width of the narrow sheet-like material is changed in the above-described winding device, the screw body 6 is loosened to align the stopper 5.

In the winding device of the present invention, since the core positioning stopper 5 is attached to the outer peripheral portion of the shaft body 1 so as to be movable in the longitudinal direction of the shaft center, the core 50 can be accurately moved in a short time. The positioning operation can be performed and the positioning position can be easily changed.

Further, since the inclined surface 5b is formed in the stopper 5 in the direction of extracting the core 50, the operation of taking out the core 50 can be performed smoothly regardless of the position of the stopper, and the protruding dimension of the stopper 5 from the shaft body 1 can be obtained. (H) and the core 50
The core 50 is inserted because the relationship between the inner diameter (D1) and the outer diameter (D2) of the shaft body 1 is S> h ≧ 0.5 mm. The positioning operation can be performed reliably.

The winding device of the present invention can also be applied to a winding shaft having a plurality of core tightening mechanisms on the shaft body, for example, Japanese Patent Laid-Open Nos. 61-18662 and 57-81046.

[0014]

Since the winding device of the present invention is equipped with the core positioning sputter on the outer peripheral portion of the shaft body, the stopper having a simple structure can accurately and accurately perform the core positioning operation in a short time. And the positioning position can be easily changed. Also, since the stopper is mounted so as to be movable in the longitudinal direction of the shaft center, the position of the stopper can be changed in a short time, and since the stopper has an inclined surface in the core withdrawal direction, the core does not get caught. In this case, the supply and removal operations of the core can be performed smoothly, and the relationship between the protrusion size (h) of the stopper from the peripheral surface of the shaft and the dimensional difference (s) between the inner diameter of the core and the outer diameter of the shaft is s. Since it is formed so that> h ≧ 0.5 mm,
The core can be inserted and positioned reliably.

[Brief description of drawings]

FIG. 1 is a schematic front view showing a first embodiment of a winding device of the present invention.

FIG. 2 is a view taken along the line ZZ in FIG.

FIG. 3 is a schematic sectional view showing details of a stopper portion in FIG.

FIG. 4 is a view as seen in the direction of arrows YY in FIG.

FIG. 5 is a schematic cross-sectional view showing a supply state of cores in the winding device of the present invention.

FIG. 6 is a schematic cross-sectional view showing another embodiment of the stopper in the winding device of the present invention.

FIG. 7 is a schematic front view showing an embodiment of a conventional core positioning mechanism.

FIG. 8 is a view on arrow XX in FIG.

[Explanation of symbols]

 1 Shaft body 2 Tightening mechanism 5 Stopper 6 Screw body

Claims (4)

[Scope of utility model registration request] 1. A winding shaft device in which a plurality of tightening mechanisms are mounted on a shaft so that a plurality of cores can be tightened, wherein a core positioning stopper is mounted on an outer peripheral portion of the shaft. Reel device. 2. The reel device according to claim 1, wherein the stopper is attached so as to be movable in the longitudinal direction of the shaft center. 3. The winding device according to claim 1, wherein the stopper has an inclined surface formed in the core withdrawing direction so as not to be caught. 4. The relationship between the dimension (h) of protrusion of the stopper from the peripheral surface of the shaft and the dimension difference (s) between the inner diameter of the core and the outer diameter of the shaft is s> h ≧ 0.5 mm. The winding device according to any one of claims 1 to 3, wherein the winding device is formed to have the following shape.