JPS6219369Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a coil opening device that is compact in its entirety.

A conventional coil opening device will be explained with reference to FIG. 1. In the figure, a shows a cradle roll that can be driven freely, b shows an arm that moves up and down by a fluid pressure cylinder c,
Reference numeral d designates a presser roll pivotally attached to the tip of arm b for pressing down the outer periphery of the coil e, and f a coil opening knife (wedge) which can be moved toward and away from the outer periphery of the coil e by means of a fluid pressure cylinder g.

When working with such a coil opening device, the coil e is placed on a cradle roll a, the surface of the coil e is pressed down with a presser roll d, and the cradle roll a is driven to move the coil e as shown in FIG. When the tip x of the coil is at the required position between the presser roll d and the tip of the coil opening knife f, reverse the cradle roll a and rotate the coil e clockwise. Open the coil with the knife f, and when the tip of the coil rests on the back of the knife f to some extent, operate the fluid pressure cylinder g to rotate the knife f upwards.
The tip of the coil was bent upward using the contact portion of the presser roll d against the coil as a fulcrum to prevent the tip of the coil from getting caught on equipment in the line when the coil was unwound and fed to a subsequent process.

However, in the conventional device described above, the frame to which the arm b to which the presser roll d is pivotally attached and the frame to which the coil opening knife f is attached are each installed independently, so the installation space becomes large. When installing other equipment, various problems arise, such as a complicated structure and high equipment costs.

This invention saves installation space by compactly combining the presser roll and the coil opening knife.
This was created with the aim of providing a coil opening device that has a simple structure and low equipment cost, and includes an upright member and a horizontal member that is integrally connected to the upper end of the upright member and extends in a direction perpendicular to the coil axis. The lower end of the upright member of the arm is pivotally mounted on a required frame so that the arm can swing in a direction perpendicular to the coil axis, and the end of the horizontal member of the arm on the opposite side of the upright member, A roll for bending the tip of the coil is pivoted above the coil parallel to the coil, a knife for opening the coil whose tip extends toward the upright member is pivoted coaxially with the axis of the roll, and A spring for biasing the knife toward the coil is disposed between the member and the knife, and the spring is disposed at a predetermined position on the upright member side of the horizontal member relative to the spring in a direction parallel to the swinging direction of the arm. A link capable of swinging is pivotally mounted to the link, and a presser roll parallel to the roll for pressing the outer periphery of the coil is pivotally mounted to the link so as to be located closer to the upright member than the tip of the knife. It is something to do.

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

The upright member 2 is attached to the frame 1 installed at the required position.
a and the horizontal member 2 fixed to the upper end of the upright member 2a.
The lower end of the upright member 2a of the arm 2, which is comprised of a letter B and has a substantially square-shaped side surface, is pivotally connected, and the rod tip of a hydraulic cylinder 3 whose lower end is connected to the frame 1 is connected to the midway portion of the upright member 2a of the arm 2. A roll 5 for bending the tip of the coil 4 is pivotally attached to the tip of the horizontal member 2b of the arm 2 in parallel with the coil 4, and the tip of the coil is opened to open the coil. Roll the tip of the coil 5
A coil opening knife 6 with a triangular side surface shape that guides the coil to the top end is pivoted coaxially with the shaft on which the roll 5 is attached so that its tip extends toward the upright member 2b,
A spring 7 that presses the coil opening knife 6 against the coil 4 is disposed between the upper surface of the knife 6 and the horizontal member 2b of the arm 2.

A link 8 is pivotally attached to the upright member 2a side of the horizontal member 2b of the arm 2 than the spring 7 attachment position, and the link 8 is attached to the upright member 2a of the arm 2 at a midway point.
The rod end of the hydraulic cylinder 9 whose lower end is connected to the upper end of the link 8 is connected to the upper end of the link 8 so that the link 8 can swing in a direction parallel to the arm 2.
A presser roll 10 that presses the outer circumference of the coil 4 is placed at the lower end of the
, parallel to the roll 5 and with a knife 6 for opening the coil.
It is pivoted so as to be located closer to the upright member 2a than the tip, and the presser roll 10 can be driven by a motor 11 and a chain 12 attached to the link 8. In the figure, 13 is a cradle roll arranged on a frame 14 and driven by a motor 15 and a chain 16, and the cradle roll 13 may be installed in a coil car.

Next, the operation of the present invention will be explained.

Place the coil 4 on the cradle roll 13,
The hydraulic cylinder 3 is operated to rotate the arm 2 toward the coil 4, and the outer periphery of the coil 4 is pressed by the roll 5, and the tip of the coil opening knife 6 is brought close to the outer periphery of the coil 4, and the hydraulic cylinder 9 is rotated. The presser roll 10 is activated to press the outer periphery of the coil 4, the motor 15 rotates the cradle roll 13, and the motor 11 rotates the presser roll 10.
, and rotate the coil 4 counterclockwise as shown by the arrow in Fig. 2, so that the tip of the coil
As shown in the figure, when the presser roll 10 and the coil opening knife 6 come to the required position, the motors 11 and 1
5 to stop coil 4, then motor 1
1 and 15 to rotate the coil 4 clockwise.

When the coil 4 is rotated clockwise, the tip of the coil is opened by the coil opening knife 6.
The coil is guided by the back surface of the coil opening knife 6 and sent to the upper side of the roll 5.

When the tip of the coil protrudes somewhat from the roll 5 toward the side opposite to the presser roll, the hydraulic cylinder 9 is operated in the direction in which the rod retreats as shown in FIG. is activated to move the arm 2 away from the coil 4. Therefore, the tip of the coil is placed at the third position using the part pressed by the presser roll 10 as a fulcrum.
It is folded upward as shown in the figure.

In the embodiment of the present invention, the case where the coil is rotated by a cradle roll has been explained, but it can also be carried out even if it is set in an unwinding machine, and the coil end opening device can be installed in a line such as a shear line or a pickling treatment line. It goes without saying that it may be provided outside the line or may be provided outside the line, and that various other changes may be made without departing from the gist of the present invention.

According to the coil opening device of the present invention, since the entire device can be compactly assembled into one frame, the installation space is small, and the structure is simple and equipment costs are low. obtain.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of a conventional coil opening device, Figure 2
3 and 3 are explanatory diagrams of the coil opening device of the present invention. In the figure, 2 is an arm, 2a is an upright member, 2b is a horizontal member, 4 is a coil, 5 is a roll, 6 is a knife for opening the coil, 8 is a link, 10 is a presser roll, 13
indicates a cradle roll.

Claims (1)

[Scope of utility model registration request] The lower end of the upright member of an arm consisting of an upright member and a horizontal member integrally connected to the upper end of the upright member and extending in a direction perpendicular to the coil axis is swung in a direction perpendicular to the coil axis. A roll for bending the tip of the coil is pivoted on the end of the horizontal member of the arm opposite to the upright member in parallel with the coil, and Coaxially with the axis of
A knife for opening the coil, the tip of which extends toward the upright member, is pivotally mounted, and a spring for biasing the knife toward the coil is disposed between the upright member and the knife, and the spring of the horizontal member is biased toward the coil. A link capable of swinging in a direction parallel to the swinging direction of the arm is pivotally attached to a predetermined position on the upright member side;
A coil opening end device characterized in that a presser roll parallel to the roll for pressing the outer periphery of the coil is pivotally mounted so as to be positioned closer to the upright member than the tip of the knife.