JPH0312969B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a coil for opening a strip coil at the entrance side of a strip supply line such as an ERW pipe production line, a pickling line, a shear line, a rolling line, etc. It's about the opener.

[Conventional technology]

Figure 3 shows a conventional coil opener, in which the cylinder a is connected to the input side of the strip supply line.
A guide frame b is provided which is rotated by the expansion and contraction movement of the guide frame b, and by rotating the guide frame b in accordance with the coil diameter, the peeler c at the upper end of the guide frame b is brought into contact with the outer peripheral surface of the strip coil d, The strip coil d has an open end.

[Problem that the invention seeks to solve]

However, since the strip coil d is not exactly a perfect circle and is distorted, in the conventional method of simply setting the position of the peeler c using the cylinder a, the peeler c may bite into the strip coil d. Alternatively, a gap may be created between the outer peripheral surface of the strip coil d and the peeler c, making it impossible to follow the change in curvature of the outer diameter of the strip coil d.

In view of the above circumstances, the present invention is designed to allow a peeler to come into contact with the outer peripheral surface of the strip coil in response to changes in the curvature of the outer diameter of the strip coil.

[Means for solving problems]

The present invention provides a guide roller for contacting the outer peripheral surface of the coil at a predetermined position on the side facing the strip coil of a rotatably erected guide frame, and a support shaft of the guide roller, It has a configuration in which a support frame equipped with an open end peeler is swingably mounted, and a spring-type pressing device is installed on the guide frame to constantly apply swing force to the coil side to the support frame. .

[Effect]

Therefore, the peeler is always in contact with the outer peripheral surface of the coil and can follow changes in the curvature of the outer diameter of the coil.

〔Example〕

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

On the entry side of the strip supply line, as shown in FIGS. 1 and 2, a guide frame is provided on a base frame 1 that can be rotated in the front-rear direction (left-right direction in FIG. 1) about a hinge pin 2 as a fulcrum. 3 is erected, and a rotating cylinder 4 for rotating the guide frame 3 is also installed to guide the strip 5' unwound from the strip coil 5 at the upper end of the guide frame 3. A guide plate 6 is provided,
A guide roller 7 for abutting against the outer circumferential surface of the strip coil 5 is rotatably mounted at a predetermined position on the front side of the guide frame 3 using a support shaft 8, and furthermore, a guide roller 7 is rotatably attached to the support shaft 8 at an upper end thereof. The lower end of a support frame 10 provided with a coil open end peeler 9 is supported, and the support frame 10 is configured to be swingable in the front and rear directions about a support shaft 8 as a fulcrum.

Further, a pressing device 12 is provided on the upper part of the guide frame 3 to press against the support frame 10 from the rear through a seat 11 to apply a forward swinging force to the support frame 10 at all times. , the pressing device 1 is installed at the bottom of the support frame 10.
An arm 13 extending from the lower surface of the support frame 10 is provided, and an adjustment bolt 14 is provided on the arm 13 for regulating the amount of forward swing of the support frame 10.
Screw it through. 20 is a pinch roll.

The pressing device 12 includes a hollow case 15 fixed to the guide frame 3, a fixed block 16 fixed to the rear part of the case 15, a block 17 slidably fitted to the front part of the case 15, and a rear end. It consists of a rod 21 which has a stopper part 18 at its end and whose tip movably passes through the fixed block 16 and is fixed to the sliding block 17, and a compression spring 19 disposed between the blocks 16 and 17.

With this configuration, when the guide frame 3 is rotated by operating the cylinder 4 and the guide roller 7 is brought into contact with the outer peripheral surface of the coil 5, the support frame 10 is pushed forward by the force of the spring 19 of the pressing device 12. Since the swinging force (rotating force) is applied to the peeler 9, the peeler 9 automatically comes into contact with the outer peripheral surface of the coil 5.

Therefore, even if the coil 5 is distorted, the peeler 9 is always in contact with the outer peripheral surface of the coil 5 when the coil 5 rotates, and can follow the change in the curvature of the outer diameter of the coil 5. The opening operation is reliably performed without any gaps being formed between the ends.

This is done in the same way even if the outer diameter of the coil 5 changes as shown by the two-dot chain line. That is, even if the outer diameter of the coil 5 changes, the amount of swing of the support frame 10 changes so that the peeler 9 always properly contacts the outer peripheral surface of the coil 5. Further, in the present invention, the coil 5
Since the guide roller 7 is provided so as to come into contact with the outer peripheral surface, the cylinder 4 can be easily operated when rotating the guide frame 3 in response to changes in the outer diameter of the coil. In other words, the presence of the guide roller 7 makes it easier to obtain timing compared to the conventional case where the peeler 9 itself is brought into contact with the coil 5.

In the above, the forward swing of the support frame 10 is achieved by adjusting the position of the adjustment bolt 14, so for example, when on standby, the guide frame 3 can be moved further rearward (to the right) from the position indicated by the two-dot chain line. However, the support frame 10 does not tilt forward beyond the position where the adjustment bolt 14 abuts the lower part of the pressing device 12.

It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

〔Effect of the invention〕

As explained above, according to the coil opener of the present invention, the frame supporting the peeler is always given a forward swinging force by the spring force of the pressing device, so that the peeler can be moved by changing the curvature of the outer diameter of the coil. This has the excellent effect of being able to always contact the outer circumferential surface of the coil by following the flow.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of the coil opener of the present invention, FIG. 2 is a view taken along the - arrow in FIG. 1, and FIG. 3 is an explanatory diagram of a conventional example. 2 is a hinge, 3 is a guide frame, 4 is a rotating cylinder, 5 is a strip coil, 7 is a guide roller, 8
is a pin, 9 is a peeler, 10 is a support frame, 1
2 is a pressing device, and 19 is a spring.

Claims (1)

[Claims] 1. A guide roller is provided at a predetermined position on the side facing the strip coil of a rotatably erected guide frame to be brought into contact with the outer circumferential surface of the coil, and an open end peeler is attached to the support shaft of the guide roller. A coil characterized in that a support frame is swingably attached to the support frame, and a spring-type pressing device is installed on the guide frame to constantly apply swing force to the coil side to the support frame. opener.