JPH115120A - Winder of metallic band - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winder of metallic band which allows an efficient shaft changing between the snubber roll and separator in the slitter line, can be constituted at a low cost and can save the installation space. SOLUTION: This winder of metallic band is equipped with a core 1 to wind the metallic band 7 consisting of one line or slit multiple lines into a coil and has a turning arm 3 which allows shaft changing at any time between a snubber roll to prevent springing-up of the tail end of the metallic band and a separator to correct shifting in the width direction of the multiple lines of metallic band after slitting. In this case, the turning arm 3 is equipped with a changing means 15 which supports the snubber roll shaft 5 and separator shaft 4 in a changeable way.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal band winding device, and more particularly to a metal band winding device suitable for use in a line for dividing a metal band such as a steel band into widths.

[0002]

2. Description of the Related Art Generally, a metal strip such as a steel strip is unwound from a coil shape to a band shape, and is subjected to some processing (heat treatment, surface treatment, etc.) while being conveyed, and thereafter is wound up (referred to as a tension reel). However, in the case of winding up with a tension reel, in general, at the end of winding, a metal band presser Snubber roll is provided. As the snubber roll, a flat roll having a body length corresponding to the coil width is usually used.

In addition, in lines (slitter lines) that divide the metal strip into a plurality of pieces in the width direction, in order to prevent the width-divided metal strip from being distorted in a telescopic shape, the edges of the split metal strip are guided to guide each split. A separator is provided for correcting the deviation of the metal strip in the width direction. Figure 2 shows the separator
As shown in FIG.
Arbor shaft 10 whose diameter can be changed by a hydraulic mechanism
(Both ends supported by bearings 12). If the diameter of the hydraulic arbor shaft 10 is reduced / expanded, the separator fins 11
Is in a slidable state / fixed state with respect to the hydraulic arbor shaft 10, so that the position of the separator fin 11 in the separator axial direction can be changed in accordance with the width of the metal band slit.

[0004] In the slitter line, there is a case where the width of the metal band is not divided. However, since it is impossible to substitute the snubber roll with the separator for the metal band which is not divided in width, it is impossible to load the metal band. However, since there is not enough room for installing a tension reel in a normal slitter line, as shown in FIG. 3, conventionally, a winding core for winding a metal band 7 fed from a pinch roll 8 is provided. A pivot arm 3 driven by a hydraulic cylinder 2 is provided at a predetermined position (upward in the case of upper winding) with respect to 1, and a snubber roll (not shown) and a separator 4 are replaced and attached together with a shaft as needed. The shaft exchange method is adopted.

In FIG. 3, reference numeral 9 denotes a rotary changer (shaft exchanging device) separately provided for exchanging a shaft between the snubber roll and the separator 4. The changer 9 has a rotating arm and a shaft to be exchanged (a snubber roll to be exchanged). Of the rotating arm or the shaft of the separator) can be supported at both ends of the rotating arm. In the shaft changing operation, the slitter line is stopped, the turning arm 3 is turned, and the shaft mounting portion at its tip is moved to the position of the shaft to be replaced supported by the changer 9 as shown in the figure, and the shaft to be replaced is moved to the rotating arm 3. It is performed by the procedure of setting the shaft at the tip of the shaft. In FIG. 3, reference numeral 13 denotes a position where the metal band is wound around the coil, 16 denotes fixing of both ends of the shaft,
It is a hydraulic cylinder for opening.

[0006]

The above-mentioned conventional shaft replacing method requires a large capital investment for a changer, cannot be carried out on a line having no storage space for the changer and the shaft to be replaced around the tension reel, and requires a small amount of shaft replacement work. It takes a lot of time and productivity is reduced. Further, with respect to the metal band divided into widths, it is necessary to suppress the rise of the tail end at the end of the winding at the portion between the separator fins of the separator shaft. However, there is a problem that the size becomes large.

The snubber roll is optimally designed to hold the metal band at the coil winding position (13 in FIG. 3). If the metal band is pressed on the near side (before winding) from the coil winding position, the metal band breaks. On the other hand, a sufficient effect cannot be expected unless the position of the separator in the width direction of the metal strip is corrected before the coil winding position. As described above, since the appropriate contact position is slightly different between the snubber roll and the separator, it is more desirable to equip the turning arm and the changer with a mechanism for changing the shaft position according to the type of the shaft.
The equipment becomes more complicated and expensive, and the space is disadvantageous.

The present invention has been made in view of the above-mentioned problems of the prior art,
It is an object of the present invention to provide a metal band winding device that can efficiently exchange a shaft between a snubber roll and a separator in a slitter line, can be configured at a low cost, and can save installation space.

[0009]

According to the present invention, there is provided a winding core for winding one or a plurality of width-divided metal strips into a coil shape, and further, the metal strip is brought into contact with the metal strip at the end of winding. A metal strip having a swivel arm that can be equipped with a snubber roll that prevents the tail end from springing up and a separator that abuts on the same metal strip and corrects the lateral deviation of the multiple metal strips after width division, along with the axis at any time. In the winding device,
A switching device for switching a snubber roll and a separator so as to be switchably mounted on the turning arm is provided.

[0010] The switching means is preferably mounted such that the metal strip contact position of the snubber roll is located downstream of the separator. The switching means, the both ends rotatably mounted on the pivot arm, one end of the snubber roll, the other arm capable of supporting the separator,
It can be constituted by rotation driving means for rotating this sub arm. In order for the metal band contact position of the snubber roll to be on the downstream side of that of the separator, the separator may be provided at one end of the sub-arm on the upstream side of the metal band, and the snubber roll may be supported at the other end of the downstream side. .

[0011]

FIG. 1 is an explanatory view of an embodiment of the present invention. FIG. 1 (a) shows the entirety, and FIGS. 1 (b) and 1 (c) show the tip of a swing arm. In FIG. 1, 5 is a snubber roll, 14 is a sub arm, and 15 is a switching means, and the same or corresponding parts as those in the conventional example of FIG.

As shown in FIG. 1, for example, a sub-arm 14 which is rotatably mounted on both ends and is capable of supporting a snubber roll 5 on one end and a separator 4 on the other end, and a rotation driving means for rotating the sub-arm 14 (In this example, a hydraulic cylinder) 6, a switching means 15 for switchingably supporting the snubber roll 5 and the separator 4 is mounted on the swing arm 3,
The snubber roll shaft 5 and the separator shaft 4 can be switched on the revolving arm 3 by operating the hydraulic cylinder 6 to rotate the sub arm 14 (FIGS. 1B and 1C).

Therefore, it is not necessary to provide a separate changer, which has been required in the past, so that not only is the space and installation cost much more advantageous than in the past, but also the swing arm is slightly retracted from the position where the metal band is pressed. Since the switching is completed only by rotating the sub arm, the time required for replacement can be greatly reduced, and the productivity of the slitter line is improved.

Further, by placing the separator 4 in front of the sub arm (upstream of the metal band) and the snubber roll 5 on the other side, the separator 4 comes into contact with the metal band (FIG. 1).
(B)) can be set to be closer to the metal band contact position of the snubber roll 5 (FIG. 1 (c)), so that the separator 4 and the snubber roll 5 are set at their appropriate contact positions. It becomes extremely easy to do so.

Further, since the tail end of the plurality of metal strips after the width division can be pressed by the snubber roll without pressing the tail end by the separator, the separator can be made relatively compact.

[0016]

EXAMPLE The apparatus shown in FIG. 1 was used as a winding apparatus for a steel strip slitter line. Metal strip (steel strip) divided in width
When winding up 7, the separator 4 in which the number of separator fins (11 in FIG. 2) and the fixing position are adjusted in accordance with the slit width is brought into contact with the steel strip 7 just before the winding position, and the winding is thickening. By guiding the steel strip 7 edge while controlling the contact position with the hydraulic cylinder 2 according to the coil diameter,
The widthwise deviation was corrected.

The separator 4 and the snubber roll 5 are switched just before the tail end of the width-divided steel strip 7 from the pinch roll 8 is removed. It is also possible to hold down. On the other hand, when the width division was not performed, the steel strip 7 was pressed using the snubber roll 5 only when the tail end of the pinch roll 8 was pulled out. The timing of the trailing edge of the tail end was calculated and set based on the remaining length of the steel strip measured from the upstream shear cut and the winding speed.

Thus, the time required for switching between the separator and the snubber roll in accordance with the presence or absence of the width division can be reduced by the conventional two times.
The time was greatly reduced from about 3 minutes to about 5 seconds.

[0019]

As described above, according to the present invention, since the axes of the snubber roll for holding the tail end of the metal strip and the separator for correcting the deviation of the split metal strip are switchably disposed on one swivel arm, the width dividing member is provided. In the winding line for the metal band including the above, there is an excellent effect that both the reduction of the setup time due to the presence or absence of the width division and the reduction of the equipment cost and the installation space can be achieved.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of one embodiment of the present invention.

FIG. 2 is an explanatory diagram of a separator.

FIG. 3 is an explanatory view of a conventional method for exchanging a shaft between a snubber roll and a separator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Winding core 2, 16 Hydraulic cylinder 3 Revolving arm 4 Separator (including shaft) 5 Snubber roll (including shaft) 6 Rotation driving means (hydraulic cylinder) 7 Metal strip (steel strip) 8 Pinch roll 9 Changer (shaft changing device) 10 Hydraulic arbor shaft 11 Separator fin 12 Bearing 13 Coil winding position 14 Secondary arm 15 Switching means

Claims (2)

[Claims] 1. A metal strip winding device having a swivel arm capable of exchanging a snubber roll and a separator,
A metal band winding device, wherein a switching means for switchingably supporting a snubber roll and a separator is mounted on the swing arm. 2. The apparatus according to claim 1, wherein said switching means is mounted such that a contact position of the metal strip of the snubber roll is downstream of that of the separator.