JPH0747403Y2 - Strip support device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a strip supporting device when a strip is looped by a loop car.

[Problems to be Solved by Conventional Techniques and Inventions] For example, in the case of continuously treating strips in a pickling equipment or the like, a change in the transfer speed of the strips of the strip does not give a bearing to the working process of the line. A loop car is provided in the line to stably feed (transfer) the strip.

This loop car is, for example, a strip rewound from a strip coil (shown by an arrow A) as shown in FIG.
Through the loop curd ram 2 mounted on the loop car 1 (indicated by arrow B) when transferred to pickling equipment or the like, due to a temporary stop of the work process or a change in the processing speed,
When it is necessary to adjust the supply amount of the strip, the loop car 1 is moved in the direction of arrow A or arrow B so that the strip is looped with a constant tension so that the supply of the strip is not excessive or insufficient. Has become.

At this time, for example, when the processing of the strip in the processing step is delayed and the strip becomes slack, the strip is sagged between the points C and D, and thus a support roller which is a strip supporting device is required. .

The applicant has previously created the running strip support device shown in Japanese Utility Model Publication No. 60-11865 as this strip support device.

However, when the drum diameter of the loop car was small and the strip width was wide, the support roller interfered with the lower strip or the rail of the loop car, and there was a region where it could not be used.

This invention was made in view of the above-mentioned circumstances, and its purpose is to prevent the support roller from interfering with the lower strip or the rail of the loop car when the drum diameter of the loop car is small and the strip width is wide. It is to provide a strip support device.

[Means for Solving the Problems] In the present invention, a rotatably supported cam shaft having a drum cam provided with a spiral cam groove is arranged outside the movement path of the loop car along the movement direction thereof, A transmission shaft arranged along the vertical direction of the loop car at a substantially right angle to the cam shaft is connected to the cam shaft through a bevel gear portion, and an arm is extended to the transmission shaft in a direction perpendicular to the shaft. The arm supports a support roller that is rotatable substantially orthogonally to the transmission shaft, and a drum cam is moved along with the movement of the loop car through a cam follower that engages with and slides in the cam groove attached to the loop car. By rotating the support roller supported on the transmission shaft via the arm in the horizontal plane including the movement path of the loop car, the arm (support) is rotated. The support arm does not interfere with the lower strip or the rail of the loop car even when the upper and lower strip intervals during looping are small.

[Embodiment] The strip supporting device of the present invention will be described below with reference to the illustrated embodiment.

Reference numeral 1 denotes a loop car, a loop car ram 2 is mounted on the loop car 1, and a driving device (not shown) is mounted on a rail 4 laid along the moving direction of the loop car 1.
Allows the strip 3 to move according to the loop.

And, on both sides of the gantry 7 which constitutes the loop car 1,
A rotatable cam follower 5 and a kicker 6 are provided.

A frame 8 is provided in parallel with the rail 4 and bearings 9, 10, 11 are provided in the frame 8, and the bearings 9, 10, 11 are arranged substantially parallel to the moving direction of the loop car 1. The cam shaft 12 is rotatably supported.

Then, at a substantially right angle to the cam shaft 12, the loop car 1
A transmission shaft 14 is provided along the vertical direction. The cam shaft 12 and the transmission shaft 14 are connected by a bevel gear portion 13, and the rotation of the cam shaft 12 is transmitted to the transmission shaft 14. A drum cam 16 having a cam groove 15 on its surface is integrally provided on the cam shaft 12. Also, this camshaft
A cam 17 having two notched circles at a predetermined position at 90 ° intervals is keyed to the end of the 12 opposite transmission shaft 14 side. Needless to say, the drum cam 16 is not limited to the fan-shaped configuration as shown in FIGS. 3 and 4, and may be a cylindrical configuration.

The transmission shaft 14 is rotatably supported by bearings 27, 27, and an arm 20 is attached to the transmission shaft 14 to support the transmission shaft 14.
It is provided so as to extend in the direction perpendicular to the axis of. Then, on the upper surface of this arm 20, a support roller is formed substantially orthogonal to the transmission shaft 14.
A vertical roller 19 is rotatably supported on the base end side of the arm 20 and substantially parallel to the transmission shaft 14. The transmission shaft 14 may be provided with a plurality of upper and lower arms that support the support roller 18.

Therefore, by rotating the drum cam 16 with the movement of the loop car 1, the bevel gear unit 13 is moved by the cam shaft 12.
When the transmission shaft 14 rotates via the support shaft 18, the support roller 18 and the vertical roller 19 supported by the arm 20 rotate in the horizontal plane including the movement path of the loop car 1.

Further, a support rod 21 and a support shaft 22 are attached to the frame 8. A lever 23 is rotatably attached to the support rod 21 by a pin, and a pin roller 24 engaging with the cam 17 is attached to the upper portion of the lever 23. By engaging the pin roller 24 with the missing circle portion of the cam 17,
The camshaft 12 is designed to be held in a fixed position.

Further, a roller 25 that comes into contact with the kicker 6 is pin-attached to the lower portion of the lever 23, and a spring 26 is interposed so that the pin roller 24 always operates in the direction of fitting into the cutout portion of the cam 17. The support shaft 22 is pinned.

Since the present invention is configured as described above, in a strip processing process such as pickling equipment, for example, when the processing speed becomes high and the supply of the strip 3 becomes insufficient, the loop car 1 shortens the loop length. When the processing speed becomes slower, the loop car 1 moves in the opposite direction to the length of the loop when the strip 3 stored in the loop is moved out from the point D position shown in FIG. Lengthen,
Store the strip 3 in the loop once. At this time, when the loop car 1 moves in the direction of the arrow a in FIG. 2, the kicker 6 first presses the roller 25 to move the pin roller 24.
Is released from the missing part of the cam 17.

Then, the cam follower 5 moves along the cam groove 15 while being fitted into the cam groove 15 of the drum cam 16. At this time, the cam groove
Since 15 is formed in a spiral shape sequentially from a straight line, the drum cam 16 rotates as the cam follower 5 moves. Therefore, the cam shaft 12 and the transmission shaft 14 connected to the shaft 12 via the bevel gear portion 13 also rotate. When the transmission shaft 14 rotates, the support roller 18 that has supported the strip 3 up to now rotates via the arm 15 in the horizontal plane including the movement path of the loop car 1 with the transmission shaft 14 as the rotation shaft to rotate the loop car. Retreat to the side of 1.

Further, when the drum cam 16 rotates 90 °, that is, when the cam follower moves from the spiral portion of the cam groove 15 to the straight line portion and passes through the straight line portion, the retreat operation ends, and the cam follower 5 leaves the drum cam 16 as it is. . Also, cam 17 is 90
° Because it will rotate, the broken circle a at which the pin roller 24 is opened at the beginning is located below, the broken circle b becomes the new holding position for the pin roller 24, and the lower roller 25 is also released from the kicker 6. It

Therefore, the support roller 18 is reliably locked in a state where the support roller 18 pivots to the side of the loop car 1 and is retracted,
Can move in the direction of arrow a without any trouble. Also,
Since the support roller 18 rotates in the horizontal plane, the support roller 18 (arm 15) does not interfere with the lower strip 3 or the rail 4 of the loop car 1.

The movement of the loop car in the direction of the arrow a has been described above. However, when the loop car 1 is moved in the direction opposite to the direction of the arrow a, the support roller 18 is rotated in the horizontal plane by the same operation after the passage of the loop car 1. The strip 3 can be reliably held at the support position.

The vertical roller 19 is provided to prevent the strip 3 from meandering.

In the above embodiment, the drum cam 16 and the cam shaft 12 are arranged in the upper part on both sides of the loop car along the loop car moving direction,
Although the transmission shaft 14 that is interlocked via the bevel gear portion 13 is provided downward, the drum cam and the cam shaft are provided at the lower portions on both sides of the loop car, and the transmission shaft 14 that is interlocked via the bevel gear portion 13 is directed upward. It may be provided.

[Effect of the Invention] According to the present invention, the cam followers attached to the loop car rotate the drum cams provided on both sides of the movement path of the loop car, and rotate the support rollers in the horizontal plane including the movement path of the loop car via the drum cam. By moving the strip, the support of the strip and the withdrawal of the support roller to the side of the loop car due to the movement of the loop car can be reliably performed by a simple device.

In addition, since the support roller is retracted along with the movement of the loop car by rotating it in a horizontal plane that includes the movement path of the loop car, the support roller and the support roller can be removed even when the upper and lower strip intervals during looping are narrow. The rotatably supporting arm does not interfere with the rails of the strip or loop car installed below the arm.

[Brief description of drawings]

1 and 2 are a side view and a plan view showing the strip supporting device of the present invention, FIG. 3 is a view taken along the line III-III in FIG. 1, and FIG. 4 is a front view showing a drum cam. The figure is a conceptual diagram of this embodiment. 1 …… Loop Car, 2 …… Loop Card Ram 3 …… Strip, 4 …… Rail 5 …… Cam follower, 6 …… Kicker 7 …… Stand, 8 …… Frame 9,10,11 …… Bearing 12 …… Cam Shaft 13 …… Bevel gear part, 14 …… Transmission shaft 15 …… Cam groove, 16 …… Drum cam 17 …… Cam, 18 …… Support roller 19 …… Vertical roller, 20 …… Arm 21 …… Supporting rod, 22… Support shaft 23 …… Lever, 24 …… Pin roller 25 …… Roller, 26 …… Spring 27 …… Bearing

Claims (1)

[Scope of utility model registration request] 1. A rotatably supported cam shaft having a drum cam provided with a spiral cam groove is arranged outside the moving path of the loop car along the moving direction thereof, and the cam shaft is mounted on the shaft. A transmission shaft arranged along the vertical direction of the loop car at a substantially right angle to it is connected through a bevel gear portion, and an arm is extended to the transmission shaft in a direction perpendicular to the shaft. The transmission is performed by rotating a drum cam along with the movement of the loop car via a cam follower that supports a support roller that is rotatable substantially orthogonally and that is engaged with and slides in the cam groove attached to the loop car. A strip supporting device, characterized in that a support roller supported on a shaft via an arm is configured to rotate in a horizontal plane including a movement path of a loop car.