JPS6118490B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a gripping device for a tension reel drum that simultaneously winds up multiple strips on a slitter line.

[Background of the invention]

Conventionally, this type of tension reel drum grip device has been indispensable for winding strip, and it is no exaggeration to say that all slitter line equipment is equipped with it. However, the gripper bar in the above-mentioned gripping device that grips the slit coil in which the strip is divided into multiple parts is formed of a single piece with a flat thickness along the axial direction. Due to the roll crown in the strip rolling equipment and the deformation resistance of the material, the central part of the strip plate width is thick, and as a result, when the strip is slit into multiple strips, the divided strip corresponding to the central part of the strip width is is gripped, but the divided strips corresponding to both ends in the board width direction are not gripped, and the strip often comes off when being wound onto the tension reel, and the strip must be rewound each time. Afterwards, the process of inserting the kasemono and rewinding the strip is repeated. Therefore, the work efficiency of simultaneous winding of multiple strips is reduced, and the sharply cut ends of the strips have to be handled more frequently, resulting in an increase in dangerous work.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a gripping device for a tension reel drum that can simultaneously and reliably grip and wind a strip divided into multiple strips having thickness variations in the width direction during a rolling process. be.

[Summary of the invention]

The present invention is characterized by gripper segments that constitute the drum of the tension reel;
a gripper guide installed along the axial direction of the gripper segment and forming a gap therebetween for guiding the strip end; and a drive device disposed within the gap and provided on the gripper segment. a wedge having a plurality of inclined surfaces that are moved along the axial direction of the gripper segment by a wedge; and a plurality of other inclined surfaces disposed within the gap and in contact with the inclined surfaces of the wedge; In a strip gripping device comprising a gripper bar that is operated to move in the radial direction of the gripper segment in response to the movement of the wedge, one of the gripper bar or the gripper guide that faces the gap. The holding member is divided into a plurality of pieces along the axial direction of the gripper segment via an elastic body, and is configured to respectively hold the ends of the plurality of strips guided into the gap.

In other words, in the present invention, since a plurality of holding members are provided via an elastic body on the surface that actually grips each of the strips divided into a plurality of strips, even if there is a difference in thickness in the width direction of the strip, At least by the spring force of the elastic body, the difference in thickness of the strip is absorbed and the divided strips are reliably gripped over the entire width direction of the board, so that the divided strip corresponding to the width edge of the board is There will be no sagging when it comes off the gripper, which can greatly contribute to improving the efficiency of the winding operation.

[Embodiments of the invention]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A tension reel drum grip device according to an embodiment of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, a gripper guide 2 is attached to the gripper segment 1, which serves as the strip winding axis, along the axial direction of the gripper segment 1 with bolts, and the strip end is connected between the two. An opening H for guiding the strip is formed with a gap equal to the thickness of the strip plate + α, into which the end of the strip is inserted and gripped. A cylinder 11 is built into the other end of the gripper segment 1, and by driving the cylinder 11, the piston 6 reciprocates along the axial direction of the gripper segment 1. Further, the wedge 4 having a plurality of inclined surfaces along the axial direction of the gripper segment 1 is similarly reciprocated in the axial direction by the rod 7 connected to the piston 6. The wedge 4 comes into contact with a gripper bar 3 which also has a plurality of inclined surfaces formed corresponding to each inclined surface of the wedge 4, and the reciprocating motion of the wedge 4 is caused by changing the relative position of both inclined surfaces. The gap size between the gripper bar 3 and the gripper guide 2 is changed by changing the movement, and the slip end is gripped between them. However, as mentioned above, there is a difference in the thickness of the strip in the width direction, and the difference in the thickness of each divided strip is not constant, so it is difficult to grip the strip divided into multiple strips in the width direction. In order to do this, in the present invention, as shown in FIGS. 3, 4 and 5, the surface of the gripper bar 3 facing the opening H,
Alternatively, a holding plate 8 divided into a plurality of pieces in the axial direction is attached to either side of the gripper guide 2 by bolts 9 via an elastic body 10 in correspondence with each strip of the divided strip. . With this configuration, the holding plate 8 that presses down the strip follows the thickness difference in the width direction of the strip and changes its position by deforming the elastic body 10 so that the gap value corresponds to the thickness of the strip. Since the gap value is secured according to the thickness of each divided strip, it is possible to simultaneously and reliably grip the strip ends of each strip.
Strip ends are prevented from coming off.

〔Effect of the invention〕

As described above, according to the present invention, even if there are differences in thickness in the width direction of multiple divided strips, it is possible to simultaneously and reliably grip the end of each strip while winding the strip onto the tension reel drum. This has the effect that there is no need to worry about it coming off.

[Brief explanation of the drawing]

1 and 2 are partial sectional views showing a grip mechanism of a conventional tension reel drum;
1, FIG. 3 is a partial axial sectional view showing a grip mechanism of a tension reel drum according to an embodiment of the present invention, and FIGS. 4 and 5 are in FIG. FIG. 3 is a partial cross-sectional view (in the direction perpendicular to the axis) showing details of the grip portion in the grip mechanism shown. DESCRIPTION OF SYMBOLS 1... Gripper segment, 2... Gripper guide, 3... Gripper bar, 4... Wedge, 5... Cover, 6... Piston, 7... Rod, 8... Holding plate, 9... Bolt, 10...elastic body, 11...cylinder.

Claims (1)

[Claims] 1. A gripper segment constituting the drum of a tension reel, a gripper guide installed along the axial direction of this gripper segment and forming a gap between them for guiding the strip end, and a gripper guide installed in the gap between the gripper segment and the gripper guide. a wedge having a plurality of inclined surfaces arranged in the gap and operated to move along the axial direction of the gripper segment by a drive device provided in the gripper segment; A gripping device for a strip comprising a gripper bar having a plurality of other inclined surfaces in contact with the inclined surface of the wedge and which is operated to move in the radial direction of the gripper segment in response to the movement of the wedge. A holding member divided into a plurality of pieces along the axial direction of the gripper segment is provided on one of the gripper bar or the gripper guide existing facing the gap via an elastic body, and the gripper segment is guided into the gap. A gripping device for a tension reel drum characterized by gripping the ends of a plurality of strips.