JPS649890B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coil opener that can handle upper and lower coils.

In the electric resistance welding pipe entrance equipment, a wide strip coil is slit into strips b and c of the required width using a slitter a as shown in Fig. 5, and then recoiled to form a narrow strip coil (hereinafter referred to as a coil). We will deal with each narrow coil individually from now on, but when a wide strip is slit as shown in Figure 5, the flow of the material at the width end of the narrow strip after slitting is upward. It is divided into two types: those that are angled (front material b) and those that are slanted downward (backing material c). When both materials are formed into tubes and the width ends are butt welded, the welded parts will be as shown in Fig. 6 (b) and Fig. 7 (b), and will be finished as shown in Fig. 6 (c) and Fig. 7 (c), respectively, but in terms of strength. It has been found that fabrication using surface materials is superior. Therefore, in order to manufacture high-quality electric resistance welded pipes, it is necessary to feed the strip so that the feeding orientation of the strip is always in the facing direction. For this reason, the coil opener that opens the coil in the ERW pipe entrance equipment handles the upper and lower coils.

However, conventional coil openers that can be used for both upper and lower extraction have a large number of parts, such as a peeler for upper and lower extraction, and are not designed to straighten the coil tip to pull it out, so it is difficult to pinch the coil tip. There were problems such as not being able to thread the sheet through the rollers smoothly.

The present invention has been made to solve the above problems, and includes a peeler that releases the tip of the coil from the outer circumferential surface of the coil and guides it to the pass line, and is provided with a peeler that can swing vertically and freely move toward and away from the coil. This device is characterized in that a snubber roll that rotates the coil in contact with the outer surface of the coil and a nose bending roll that corrects the tip of the coil are provided on the rotatably supported upper and lower arms.

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

Figures 1 to 3 explain the present invention, in which 1 is a payoff reel, 2 is an upper or lower coil set on the payoff reel 1, and 3 is a payoff reel.
2 shows a pinch roll that guides the strip fed from the coil 2 to a pipe manufacturing device, a frame 4 is provided between the payoff reel 1 and the pinch roll 3, and a pointed peeler 5 is attached to the frame 4 in the vertical direction. A shaft 8 is connected to the ends of an upper arm 6 and a lower arm 7 which face each other vertically with an interval between them, with the peeler 5 in between. The shaft 8 is supported by the frame 4 so that the upper arm 6 and the lower arm 7 can each rotate in the radial direction of the coil 2 around the shaft 8. Snubber rolls 9 and 10 in contact with the surface and nose bending rolls 11 and 12 are rotatably provided on the intermediate side, and motors 13 and 14 for driving the snubber rolls 9 and 10 are provided on each arm.
3, 14 can be transmitted to the snubber rolls 9, 10 via the sprocket and chain, and cylinder devices 15, 16 are connected to the upper arm 6 and lower arm 7, and the cylinder devices 15, 16 are connected to the frame 4. The upper arm and the lower arm can be rotated to desired positions by supporting the cylinder device.

Next, details of a mechanism for vertically swinging the peeler 5 and a mechanism for moving the peeler 5 toward and away from the coil will be explained.
The end of the peeler 5 with the tip facing the coil 2 is attached to the shaft 17
, both ends of the shaft 17 are rotatably attached to a movable plate 18, and the movable plate 18 is guided by a guide member 19 fixed to the frame 4 so as to be able to slide toward and away from the coil 2, A cylinder device 21 is pivotally connected to each of links 20 fixed to both ends of the shaft 17.
1 is pivotally supported on a frame 4 so that the peeler 5 can swing vertically about a shaft 17 by the cylinder device, and a bracket 22 provided on a movable plate 18 is connected to a cylinder device 23 to connect the cylinder device 23. The peeler 5 is supported by the frame 4 so that it can be moved toward and away from the coil 2 by the operation of the cylinder device, and the shaft 26 has a pinion 25 fixed at both ends that meshes with a rack 24 fixed to the frame 4 side. By rotatably attaching the movable member 18 to the guide member 1
I try to move smoothly along Route 9.

In the figure, 27 and 28 are guide plates fixed to the arm to guide the tip of the coil to the nose bending rolls 11 and 12, 29 is a guide plate that guides the tip of the coil that has passed through the peeler 5 to the pinch roller 3, and 30 is a band plate. It shows the path line.

Next, the operation when the payoff reel 1 is provided with an upwardly extending coil will be explained.

The peeler 5 is removed by the operation of the cylinder devices 21 and 23.
is moved forward in an upwardly inclined state and held in the state shown by A, and the upper arm 6 is rotated to a predetermined position by the operation of the cylinder device 15 to bring the snubber roll 9 into contact with the outer peripheral surface of the coil 2. When the motor 13 is driven to rotate the coil 2 in the direction of arrow
After being released from the outer peripheral surface of the nose bending roll 11
Due to the action of , back is given in the opposite direction,
Proceed as B, H, D, H to smoothly pass the sheet through pinch roll 3. After the tip of the coil passes through the pinch roll 3, the peeler 5 is returned to its original position.

When handling a coil that is coming out from below, move the peeler 5 forward while tilting it downward and hold it at the position shown by B, and rotate the lower arm 7 to a predetermined position to bring the snubber roll 10 into contact with the coil 2. , coil 2
Rotate in the direction of arrow Y. The tip of the coil released from the outer circumferential surface of the coil by the peeler 5 is straightened by a nose bending roll 12 and sent to the pinch roll 3 in the same manner as in the case of lifting the coil.

It should be noted that the present invention is not limited to the coil opening work for electric resistance welded pipes, but can be used for various coil opening operations that involve raising and lowering, and other changes may be made without changing the gist of the present invention. Of course, it can be implemented by

Since the present invention has the above-described configuration, it can achieve the following excellent effects.

(i) It is possible to handle upper and lower coils, and in both cases, the deflection of the coil tip can be corrected, so the coil tip can be smoothly passed through the pinch rolls.

(ii) Since the peeler can be used for both upper and lower removal, the number of parts can be reduced.

(iii) Since the entire system can be compacted, the exclusive area can be reduced.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a front view, FIG. 2 is a view taken in the direction of the − arrow in FIG. 1, and FIG. 3 is a view taken in the − direction of FIG. 1. , FIG. 4 is a view in the direction of the − arrow in FIG. 1, FIG. 5 is an explanatory diagram of the state of cutting the strip, FIG. C is an explanatory diagram of the state of the welded portion in the backing material of the strip. 1...Payoff reel, 2...Coil, 2a...
... Coil tip, 3 ... Pinch roll, 4 ... Frame, 5 ... Peeler, 6 ... Upper arm, 7 ... Lower arm, 8, 17 ... Shaft, 9, 10 ... Snubber roll, 11, 12 ... ...Nose bending roll, 15,1
6, 21, 23... Cylinder device, 18... Movable plate, 19... Guide member.

Claims (1)

[Claims] 1 A peeler that releases the tip of the coil from the outer circumferential surface of the coil and guides it to the pass line is provided so as to be able to swing vertically and move toward and away from the coil. A coil opener characterized by having a snubber roll that rotates the coil in contact with the coil and a nose bending roll that corrects the tip of the coil.