JPS628889Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a steel strip threading device, and more specifically, it obtains multiple strips of narrow steel strip from a wide steel strip by cutting, and winds these strips simultaneously. The present invention relates to a strip steel threading device.

One of the processing lines for strip steel is the slitting line. This line is made by rolling steel strips into wide rolls and slitting them in the middle of the line.
This is the process of cutting the coil into narrow slit coils and winding them onto a tension reel.

In such a slitting line, the distance from the slitting reel to the tension reel is long, and the slitted coils cut into multiple strips may wave, even with appropriate guidance, or the spacing between adjacent ones may not be constant. In particular, the slit coil located at both ends escapes outward, and when the tip of the slit coil reaches the tension reel, the tip positions are scattered, making it impossible to attach it to the tension reel immediately. Nakatsuta. Therefore, in the past, it was necessary to attach each slit coil to the tension reel, which was extremely complicated and reduced productivity.

In addition, especially in the case of relatively thick steel strips, when cut with a slitter, the tips of the slit coils may become twisted or warped due to shear strain and residual stress, and the distribution range of this is limited when viewed from the front of the cut end of the steel strip. It may be about 50 to 60 mm vertically. In such a case, even if you try to bite the tip of the slit coil into the gripper that fixes the tip of the slit coil provided on the tension reel side, it will be extremely difficult because the plate is strong, and it will take a lot of effort to attach it. It requires effort and time.

The present invention was made in order to eliminate the above-mentioned conventional drawbacks, and provides a strip steel threading device configured so that the tip of a slit coil can be attached to a tension reel extremely easily. The purpose is to

In this invention, in order to achieve the above object, a guide frame that is slidable in the sheet threading direction is provided on the fixed guide provided between the bending roll and the tension reel, and the guide frame is perpendicular to the sheet threading direction. A clamp and a plurality of claws arranged below the clamp are arranged on the upper surface of the guide frame so that they can move up and down, and a structure that can be opened laterally is adopted.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

FIG. 1 and the following illustrate one embodiment of the present invention. In the figures, reference numeral 1 indicates a bending roll, and a tension reel 2 is provided at a predetermined distance from this bending roll 1. . A fixed guide 3 is arranged horizontally between the bending roll 1 and the tension reel 2. One end of the fixed guide 3 in the sheet passing direction is fixed to the frame 4 on which the bending roll 1 is mounted, and the other end in the sheet passing direction is placed and fixed on the upper surface of the support column 5.

The bending roll 1 gives a curl to the cut slit coil 6, and is designed to make it easy to wind the slit coil 6 around the tension reel 2. Feed rolls 7 and 8 for advancing the slit coil 6 are provided near the bending roll 1 at positions closer to the fixed guide 3 side.

On the other hand, on both sides of the fixed guide 3 perpendicular to the sheet passing direction, there are guide frames 9 having a U-shaped cross section as shown in FIG.
is fixed, and using this guide frame 9, a guide frame 10 is attached so as to be slidable in the horizontal direction. A part of the guide frame 10 includes a cylinder 1 fixed to the lower side of the fixed guide 3.
The tip of the piston rod 12 of 1 is the bracket 13
The guide frame 10 is connected with a pin through the cylinder 11, and is configured so that the guide frame 10 can freely move forward and backward by the operation of the cylinder 11.

As shown in FIGS. 3 and 5, the guide frame 10
The bracket 10a on one end side of the distal end (in FIG. 1, the back side of the guide frame 10) has a
One end of the rotating frame 15 is rotatably supported via the shaft 14 . The shaft 14 and the rotating frame 15 are fixed. On the other hand, in the coaxial portion with the shaft 14, near the tip of the fixed guide 3, there is a shaft 14a rotatably attached to a bracket 3a fixed to the fixed guide 3, and a bracket 16 fixed to the shaft 14a. The tip of a piston rod 17a of a clevis-shaped cylinder 17 attached to the lower side of the fixed guide 3 is rotatably attached to the tip of the piston rod 17a. Shaft 14 or rotating frame 1 on the guide frame 10 side
5 and the shaft 14a on the fixed guide 3 side are provided with clutch members 28, 2 facing each other.
9 is fixed. And guide frame 1
0 is at the retraction limit and the rotating frame 15 is in the position shown by the two-dot chain line in FIG. 1, the clutch members 28 and 29 engage with each other to operate the cylinder 17, as shown in FIG. As a result, the rotating frame 15 can be rotated 90 degrees about the shaft 14 and lifted upward, as shown by the two-dot chain line in FIG. Of course, when the guide frame 10 is moved forward, the clutch members 28,
29 is uncoupled.

Further, as is clear from FIG. 3, a clamp arm 18 is rotatably supported at the other end of the guide frame 10 through a shaft 19.
The lower end of this clamp arm 18 is rotatably connected to the tip of a piston rod 20a of a clevis-shaped cylinder 20 whose one end is supported by the lower end of the guide frame 10.
The upper end is configured to be able to clamp the free end side of the rotating frame 15.

An elevating frame 22 that is raised and lowered by a cylinder 21 is provided on the tension reel 2 side of the rotation frame 15, and is movable up and down by guides 23, 23.
A large number of claws 24 are protruded from the lower surface of the elevating frame 22 at predetermined pitches. These claws 24 are constructed so that the spacing between them can be easily adjusted according to the width of the slit roll by arranging a predetermined spacer between each claw 24.

On the other hand, a clamp 25 is housed in the rotating frame 15 so as to be able to rise and fall freely, and a pair of left and right cylinders 2
6 and 26, it can be freely raised and lowered.

Next, the operation of this embodiment configured as above will be explained.

First, the cylinder 11 is operated and the guide frame 10 is moved backward. At this time, the rotating frame 15 is rotated on the guide frame 10, and its free end is fixed by the clamp arm 18 so as not to open. Then, the cylinder 21 is operated to lower the elevating frame 22 and keep the pawl 24 in contact with the guide frame 10. In this state,
The feed reel 7 is rotated, and the slit coil 6 cut by the slitter is moved forward, passed between the claws 24, and kept projecting a predetermined distance from the tip of the guide frame 10.

Next, actuate the cylinder 26 to
5 is lowered and each slit coil 6 is pressed onto the guide frame 10 to correct deformation, warpage, etc.

In this state, the cylinder 11 is operated to move the guide frame 10 forward, and the tip of the guide frame 10 is positioned near the gripper 2a of the tension reel 2. Next, after raising the clamp 25, each slit coil 6 is moved forward a little so that the tip of each slit coil 6 is fitted into the gripper 2a and clamped by the gripper 2a. Next, the guide frame 10 is moved backward, and the clutch members 28, 29 are at the backward limit position shown by the chain line in FIG.
Once connected, the cylinder 20 is actuated to remove the clamp arm 18, and then the cylinder 17 is actuated to move the piston rod 17a backward, thereby moving the rotating frame 15 laterally as shown by the chain line in FIG. Even if the winding diameter of the slit coil 6 by the tension reel 2 increases,
The state is such that it does not interfere with the passage of the slit coil 6. Thereafter, the tension reel 2 is rotated to start winding the slit coil 6.

During this winding, the finger roll 27, which has claws provided at predetermined intervals according to the width of the slit coil 6, is always in contact with the upper side of the tension reel 2, ensuring that the slit coil 6 does not shift. We will guide you through how to wrap it.
The finger roll 27 is attached to the tip of a rotating arm (not shown), and its position changes depending on the winding diameter of the slit coil 6.

In addition, in this example, the lower claw of the clamp was fixed directly to the clamp on the underside of the clamp, but it may be fixed to the lower part of the clamp via another member instead of being attached directly to the clamp. , it is also possible to have a structure in which an arm protrudes from the clamp and is attached to it.

As is clear from the above description, according to the present invention, the guide frame is provided between the tension reel and the bending roll so as to be slidable in the sheet threading direction with respect to the fixed guide, and A clamp and a plurality of claws arranged below the clamp are arranged perpendicularly to the upper surface of the guide frame so as to be able to rise and fall freely.
The clamp and claws are configured to be able to escape laterally at the retraction limit of the guide frame, so even if the slit coil is deformed or misaligned, pass it through between each claw and attach it to the guide frame with the tip clamped. Since the tension reel is moved forward, it can be securely attached to the tension reel. Of course, it is easy to grip thick plates, and it is also easy to grip a large number of slit coils arranged at equal intervals, so these can be wound reliably and easily, which has the excellent effect of significantly increasing work efficiency. is obtained.

[Brief explanation of the drawing]

The figure is for explaining one embodiment of the present invention.
The figure is a front view, Figure 2 is a sectional view taken along the - line in Figure 1,
Figure 3 is a sectional view taken along the - line in Figure 1, and Figure 4 is a cross-sectional view of Figure 1.
FIG. 5 is a side view taken from the line - in FIG. 3 when the guide frame is at the retraction limit. 1...Bending roll, 2...Tension reel, 3...Fixed guide, 6...Slit coil, 7...
Feeding reel, 10... Guide frame, 11, 1
7, 20, 21, 26...Cylinder, 15...Rotating frame, 18...Clamp arm, 22...Elevating frame, 24
...Claw, 25...Clamp, 27...Finger roll, 28, 29...Clutch member.

Claims (1)

[Scope of utility model registration request] A fixed guide installed between the bending roll and tension reel of the slitting line is provided with a guide frame that can slide in the threading direction, and the guide frame is arranged perpendicular to the threading direction below the clamps. A strip steel threading device in which a plurality of claws are arranged on the upper surface of a guide frame so as to be able to move up and down, and can also be opened laterally.