JPH05254699A - Winding device for slitter - Google Patents

Abstract

PURPOSE:To remove a wound line material easily in a winding device for slitter which winds plural metallic line materials obtained by shearing a wide metallic band with a shearing cutting edge at the same time. CONSTITUTION:An expandable shaft 4 is provided with sawtooth-like protrusions on its peripheral surface. When the expandable shaft 4 is moved in axial direction, push-up pins 8, bearing shaft support 9, bearings 6 and split rings 10 move, so that a recoiler drum vanes 11 are moved in the radial direction of recoiler drum main shafts 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slitter for continuously cutting a wide metal strip such as a cold-rolled steel sheet into a plurality of slit-shaped strips. Regarding the taker

[0002]

2. Description of the Related Art In a slitter, a coil of a wide metal band is unwound, and the metal band is sheared by a shearing blade into a plurality of narrow strips. At the same time, the strip material is wound on the winding device.

FIG. 6 is a schematic view of a slitter. The metal strip 22 is unwound from the wide metal strip coil 21, and the metal strip 22 is cut by the shear slit blade 23 into a plurality of narrow strips 2.
Cut to 4.

The strips 24 are guided to the winding device 26 as they are, separated from each other by the separator 25, and wound on the winding shaft of the winding device 26.

FIG. 7 is a partially cutaway front view showing a conventional slitter winding device. The rotary shaft 30 is rotatably supported by an appropriate supporting device and is rotationally driven by a driving device (neither is shown). Screws are engraved on both ends of the rotary shaft 30, and a holding plate 32 is screwed into the screw.

A cylindrical take-up shaft 31 is attached to the rotary shaft 30.
Are fitted and arranged coaxially, and are held by a holding plate 32 via a circular plate 33. Thereby, the winding shaft 31 is fixed to the rotating shaft 30.

A plurality of circular plate-shaped winding plates 34 are provided on the winding shaft 3.
They are fitted to the outer peripheral surface of No. 1 and are arranged at appropriate intervals. The winding plate 34 is sandwiched between a pair of thin circular ring-shaped friction plates 35 that are similarly fitted to the winding shaft 31.
Further, a slip plate 36 made of stainless steel is arranged outside the friction plate 35. The slip plate 36 has a circular plate shape as a whole, but a part of the inner peripheral edge thereof projects toward the center side, and the projecting portion 36a is fitted into the groove 31a formed on the outer peripheral surface of the winding shaft 31. Slip plate 36
Is fixed to the winding shaft 31. As a result, the winding plate 3
4 is sandwiched and fixed by a slip plate 36 via a friction plate 35.

As shown in the front and side views of FIGS. 8 (a) and 8 (b), the winding plate 34 is in the form of a thin plate having an outer diameter of 200 mm, an inner diameter of 108 mm and a thickness of 5 mm, for example. It is made of stainless steel. A relatively soft circular ring-shaped lubrication member 38 made of metal or the like is fitted on the inner peripheral surface of the winding plate 34. The lubrication member 38 is provided between the winding plate 34 and the winding shaft 31. To intervene. The lubricous member 38 has, for example, an outer diameter of 108 mm and an inner diameter of
It is a narrow ring with a thickness of 100 mm and a thickness of 5 mm.

A thick cylindrical liner 37 is interposed between the slip plates 36 and between the slip plate 36 and the pressing plate 32. In this manner, the winding shaft 31 is sandwiched between the pair of outermost pressing plates 32 on the outer periphery of the winding shaft 31, and the winding plate 34, the friction plate 35, the slip plate 36, and the liner 37 support the winding shaft 31. It is fitted and arranged.

Thus, in the conventional winding device, the lubrication member 38 made of a metal bar or the like has an outer diameter equal to that of the winding plate 34.
Is formed to have a size slightly larger than the inner diameter, and the lubricating member 38 is cooled and thermally contracted, and then fitted into the inner surface of the winding plate 34, and then the lubricating member 38 is returned to room temperature and thermally expanded. Thus, the lubricity member 38 and the winding plate 34 are fixed.

In the winding device for slit-shaped strip having the above-described structure, the wide metal strip 22 is attached to the slit blade 23.
After being cut by, the plurality of strips 24 are separated by the separator 25 and sent to the winding device 26. In the winding device 26, the winding shaft 31 is rotationally driven, and each strip is wound around each winding plate 34 arranged on the winding shaft 31. In this case, the wide metal strip 22 such as the cold-rolled steel sheet before cutting has an uneven thickness in the width direction. Therefore, the coil thickness of the strip 24 wound around the winding plate 34 is different for each strip. For this reason, since the coil radii of the strips 24 are different from each other, the winding plate 34 rotates relative to the winding shaft 31 via the soft lubricating member 38, so that the winding plate 34 moves. Keep the same rotating peripheral speed. As a result, the tension of the strip 24 wound around each winding plate 34 is kept constant, and the uniformity of winding is ensured.

However, the winding plate 34 and the winding shaft 3
The soft lubricating member 38, such as a metal, which is interposed between the winding plate 34 and the winding plate 34 to allow the winding plate 34 to slip with respect to the winding shaft 31 is cooled and heat-shrinked, and then the winding plate. It is fitted on the inner surface of the winding member 34, and the lubricating member 38 fixes the winding member 34 to the winding member 34 by thermal expansion when the winding member 34 reaches the same temperature or higher. Therefore, for example, when the side surface of the strip-shaped product is hit with a hammer or the like to separate the coil-shaped strip product from the winding plate 34,
There is a disadvantage that the lubrication member 38 comes off from the winding plate 34 due to the impact. Then, it is necessary to fix the lubricous member 38 to the winding plate 34 again by the above-mentioned cold fitting. Therefore, the work is complicated.

In order to solve such a problem, the inventors of the present application have respectively taken the front view of FIGS. 9A and 9B and its A
As shown in the partial cross-sectional view taken along the line A, a protrusion 41 is provided on the inner surface of the winding plate 40 made of stainless steel or the like, and the protrusion 41 is press-fitted to the outer peripheral surface of the lubrication member 42 made of a metal bar or the like. Proposed (Japanese Patent Application No. 2-149041). As a result, even if a shock is applied when the strip is removed, the lubricative member 4
It is possible to prevent 2 from coming off from the winding plate 40.

[0014]

However, in any of the conventional slitter winding devices described above, when the strip material is tightly wound around the winding plate, even if a shock is applied by a hammer or the like, There is a drawback that the strip material does not easily come off the winding plate.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a slitter winding device in which the strip material wound on the winding plate can be easily removed.

[0016]

SUMMARY OF THE INVENTION A winding device for a slitter according to the present invention comprises a winding shaft and a winding shaft arranged at an appropriate interval in the axial direction of the winding shaft. In a winding device of a slitter, which has a plurality of individually rotatable winding members, and simultaneously winds a plurality of strips cut from a metal strip on the peripheral surfaces of the plurality of winding members, respectively. The winding member is composed of a plurality of divided winding members arranged along the circumferential direction of the winding shaft and movable in the radial direction of the winding shaft, and the center of the winding shaft. The reciprocating movement of the expansion / reduction shaft arranged in the axial direction of the winding shaft causes the split winding member to expand / reduce in the radial direction of the winding shaft via the intermediate member.

[0017]

In the present invention, the winding member is composed of a plurality of divided winding members, and each divided winding member is movable in the radial direction of the winding shaft. Then, by reciprocating the expansion / contraction shaft in the axial direction of the winding shaft, the divided winding member can be expanded / contracted in the radial direction of the winding shaft via the intermediate member. Therefore, by appropriately moving the expansion / contraction shaft, when winding the strip material, each split winding member is moved in a direction away from the center of the winding shaft to set a substantial outer diameter of the winding member, and the winding member is wound in this state. When the strip member is wound around the member in a coil shape, and then the respective divided winding members are moved toward the center of the winding shaft to reduce the substantial outer diameter of the winding member, the winding member and the winding member are wound into a coil shape. A gap is formed between the strip and the inner peripheral surface of the strip, and the strip can be easily removed from the winding member.

[0018]

Embodiments of the present invention will now be described with reference to the accompanying drawings.

FIG. 1 is a partially cutaway front view showing a slitter winding device according to an embodiment of the present invention, and FIG. 2 is a schematic vertical sectional view thereof.

The rotary shaft 1 is rotatably supported by an appropriate supporting device and is rotatably driven by a driving device (neither is shown). Screws are formed on both ends of the rotary shaft 1, and a fixing plate 2 is screwed and fixed to the screws. The pressing plate 3 is fixed by the fixing plate 2.

A cylindrical expansion / contraction shaft 4 is fitted on the rotary shaft 1 so as to be coaxial with it and slightly movable in the axial direction. The peripheral surface of the expansion / contraction shaft 4 is provided with sawtooth-shaped irregularities in cross section.

A cylindrical recoiling drum main shaft (winding shaft) 5 is coaxially arranged outside the expansion / contraction shaft 4. The recoiler drum main shaft 5 has a hole 7a for arranging the bearing 6 at a position that divides the circumference into six equal parts, and a penetration that reaches the inner peripheral surface of the recoiler drum main shaft 5 from the bottom of the hole 7a. A hole 7b is provided. This hole 7a,
7b are provided at appropriate intervals along the axial direction of the recoiler drum main shaft 5.

The push-up pin 8 is loosely fitted in the hole 7b. A taper is provided at the bottom of the push-up pin 8 in a conical shape. The tapered surface slides on the uneven surface of the expansion / contraction shaft 4, and the push-up pin 8 moves in the axial direction as the expansion / contraction shaft 4 moves in the axial direction. It is adapted to move in the radial direction of the iller drum main shaft 5. Further, the bottom of the bearing bearing 9 fitted in the hole 7a contacts the top of the push-up pin 8. A bearing 6 is arranged on the bearing bearing 9 so as to be axially supported by a bearing shaft 6a.

On the outer peripheral surface of the recoiler drum main shaft 5, 4
A ring-shaped member formed by combining the individual split rings 10 is arranged. Each split ring 10 is shown in FIG.
As shown in the front view and the side view, respectively, in (b), both ends thereof are cut to a thickness half that of the other parts. Then, the cutting surfaces of the end portions are combined so as to contact each other. The ring-shaped member including the four split rings 10 is arranged such that the inner peripheral surface thereof contacts the bearing 6. Therefore, this ring-shaped member is rotatable along the outer peripheral surface of the recoiler drum main shaft 5.

On the outside of the ring-shaped member composed of the split ring 10, a decoiler drum blade (split-up winding member) 11 having an arcuate peripheral surface is arranged. As shown in the partial sectional view of FIG. 4, both edges of the recoiler drum blade 11 on the center side project toward the center, and the split ring 10 is fitted between the projecting portions. ing.

Four recoiler drum blades 11 are arranged along the circumferential direction of the recoiler drum main shaft 5 to form a winding member. A bolt 11a is screwed into the end of each recoiler drum blade 11, and the bolt 1a
A spring 12 is stretched between 1a. Also,
The split ring 10 and the recoiler drum blade 11 are provided with holes at predetermined positions respectively, and by inserting the pin 15 into these holes, the split ring 10 and the recoiler drum blade 11 do not shift in the circumferential direction. I am trying.

Further, the recoiler drum blade 11 is sandwiched between a pair of friction plates 13 as shown in the schematic partial sectional view of FIG. 5, and a stainless steel slip plate is provided outside the friction plates 13. 14 are provided.

In the present embodiment, the attachment (auxiliary drum) 20 can be attached to the outer peripheral surface of the recoiler drum blade 11 if necessary. That is, the recoiler drum blade 11 is provided with the bolt hole 16, and the metal member 17 is arranged at the position of the bolt hole 16, and the metal member 17 positions the recoiler drum blade 11 and the attachment 20. Then, the attachment 20 is fixed to the recoiler drum blade 11 with the bolt 18. By disposing the metal member 17 between the recoiler drum blade 11 and the attachment 20, positioning of the recoiler drum blade 11 and the attachment 20 is facilitated, and the diameter of the bolt insertion hole provided in the attachment 20 is increased. It is possible to prevent the attachment 20 from shaking due to the fact that is larger than the diameter of the bolt 18. Attachment 20 to recoiling drum feather 1
By arranging it on the outer peripheral surface of No. 1, the winding inner diameter of the strip can be increased.

In the winding device thus constructed,
Due to the contracting force of the spring 12 stretched between the recoiler drum blades 11, the ring-shaped member composed of the four split rings 10 receives stress in the direction in which the diameter thereof is reduced. Therefore, stress is applied to the bearing 6 in the direction toward the axis center. On the other hand, since the bearing 6 is supported by the bearing bearing 9, and the bearing bearing 9 is in contact with the push-up pin 8, the position of the bearing 6 is determined by the position where the push-up pin 8 contacts the uneven surface of the expansion / contraction shaft 4. To be done.

When winding the strip material, first, a paper tube (not shown) is inserted at a position aligned with each winding member, and the push-up pin 8 comes into contact with the vicinity of the top of the unevenness on the peripheral surface of the expansion / contraction shaft 4. The expansion / contraction shaft 4 is moved as described above. Thereby, the substantial outer diameter of the winding member constituted by the four recoiler drum blades 11 is set to be large, and the winding member presses the inner peripheral surface of the paper tube to fix the paper tube to the winding member. To be done. In this state, the recoiler drum main shaft 5 is rotated to wind the strip material on the peripheral surface of the paper tube. In this case, if the coil thickness of the coiled strip is different due to the difference in the thickness of the cut strips, the four strips are divided in order to keep the tension during winding of the strip constant. Ring 1
A ring-shaped member composed of 0 rotates while contacting the outer peripheral surface of the bearing 6. As a result, the tension of the strip material wound around the paper tube is kept constant, and the uniformity of the winding is ensured.

After the winding of each strip is completed, the expansion / contraction shaft 4 is moved in the axial direction so that the push-up pin 8 contacts the trough side of the uneven surface of the expansion / contraction shaft 4. As a result, the recoiler drum blade 11 moves to the center side, and the substantial outer diameter of the winding member decreases. Therefore, a gap is formed between the inner peripheral surface of the paper tube and the outer peripheral surface of the recoiler drum blade 11, and the strip can be easily removed from the recoiler drum blade 11.

In this embodiment, by moving the expansion / contraction shaft 4 in the axial direction, the substantial outer diameter of the winding member constituted by the four recoiler drum blades 11 for winding the strip is changed. Can be made Therefore, the strip can be easily removed from the winding member.

[0033]

As described above, according to the present invention, the winding member is composed of a plurality of divided winding members, and when the expansion / contraction shaft is reciprocated in the axial direction of the winding shaft, each divided winding member. Expands and contracts in the radial direction of the winding member, so that the metal strip wound around the winding member can be easily removed.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing a slitter winding device according to an embodiment of the present invention.

FIG. 2 is a schematic vertical sectional view of the same.

3 (a) and 3 (b) are a front view and a side view showing a split ring, respectively.

FIG. 4 is a partial sectional view showing a recoiler drum blade.

FIG. 5 is a schematic partial cross-sectional view showing a slitter winding device according to an embodiment of the present invention.

FIG. 6 is a schematic view of a slitter.

FIG. 7 is a partially cutaway front view showing a conventional slitter winding device.

8A and 8B are respectively a front view and a side view showing a winding plate.

9 (a) and 9 (b) are respectively a front view and a partial cross-sectional view showing a winding plate that can prevent the lubricous member from being separated from the winding plate when the strip is removed.

[Explanation of symbols]

 1,30; Rotating shaft 4; Expansion / contraction shaft 5; Recoiler drum main shaft 6; Bearing 8; Push-up pin 10; Split ring 11; Recoiler drum blade 12; Spring 13, 35; Friction plate 14, 36; Slip plate 22; Metal strip 23; Slit blade 24; Strip 25; Separator 26; Winding device 31; Winding shaft 34, 40; Winding plate

Claims (1)

[Claims] 1. A winding shaft, and a plurality of winding members arranged at appropriate intervals in the axial direction of the winding shaft and individually rotatable in the circumferential direction of the winding shaft. In a winding device of a slitter that simultaneously winds a plurality of strips cut from a metal strip on the circumferential surfaces of the plurality of winding members, respectively, the winding member is arranged in a circumferential direction of the winding shaft. A plurality of divided winding members arranged along the winding shaft are movable in the radial direction of the winding shaft, and an expansion / contraction shaft arranged at the center of the winding shaft is arranged in the axial direction of the winding shaft. A slitter winding device characterized in that the split winding member is expanded and contracted in the radial direction of the winding shaft via an intermediate member by reciprocating.