JPS6032115Y2 - Threading table in strip processing equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a threading table in strip processing equipment.

In strip processing equipment in which strips are subjected to processes such as pickling, side trimming, and cutting, a threading table is provided between pinch rolls and processing equipment to maintain the running path line of the strip.

This threading table has a large number of rolls on its upper surface, and during line operation, these rolls make noise due to contact with the strip running at high speed, 1 causing problems in the working environment.

To avoid this, conventionally the threading table 3 was installed at a position slightly lower than the pass line during line operation, as shown in Figure 1, to avoid contact between the roll 4 on the threading table 3 and the strip 7. However, if the added tension of the strip 7 is small, even during line operation, the strip 7
A large amount of slack is generated in the plate and comes into contact with the threading table roll 4.

Although this sag can be avoided by increasing the applied tension of the strip, the power of the equipment will be increased more than necessary, and this will be an economic disadvantage.

Also, a method has been proposed in which the pass line has a large height difference to avoid slack in the strip and contact with the roll 4, but the tip of the strip that is fed intermittently
There is a limit to the height difference of the pass line because it hits the roll of the sheet passing table and impairs work efficiency.

For the reasons mentioned above, contact between the roll 4 of the threading table 3 and the strip 7 cannot be avoided, which is currently a source of noise.

Therefore, as shown in Figure 2, some rolls 4' are placed only at support positions that maintain the pass line.
Although the number of rolls is only slightly reduced, the noise due to contact due to the increase in line speed is reduced at line speed 600m//
The minimum value is 90 or more, which is not a suitable countermeasure.

Although this noise can be reduced by providing the roll with a non-metallic lining made of rubber or resin, this is economically disadvantageous as it causes severe wear and frequent replacement.

This invention aims to eliminate the above problems by simple means.

The explanation will be given below based on the actual situation shown in FIG.

1 is a pinch roll, 2 is a shaft, 3 is a threading table, 4 is a roll arranged on this threading table, 5 is each roll 4
These devices themselves are exactly the same as conventional strip processing equipment.

In such strip processing equipment, this invention provides a lifting device 6, such as a fluid pressure cylinder or a jack, that can move up and down on the threading table 3, and moves the threading table 3 up and down according to changes in the pass line of the strip 7. It was designed so that

Since this device is constructed as described above, when feeding the strip 7 to the processing equipment at low speed, the pushing up device 6 is operated to move the threading table 3 upward as shown by the broken line in the figure, so that the strip 7 is fed onto the roll 4. The strip 7 is held, and as the speed of the strip 7 increases, the threading table 3 is moved downward as shown by the solid line in the figure using the push-up device 6 to retreat from the pass line.
The strip 7 does not come into contact with the threading table roll 4.

Therefore, according to this invention, it is possible to reliably eliminate noise sources caused by contact between the strip and the threading table roll, and there is no need for lining, which is extremely effective in terms of the working environment and economically.

[Brief explanation of the drawing]

1 and 2 are front views of a conventional device, and FIG. 3 is a front view showing an embodiment of the present invention. 1... Pinch roll, 3... Threading table, 4... Roll, 6... Push-up device, 7... Strip.

Claims (1)

[Scope of utility model registration request] The threading table that holds the running pass line of the low-tension strip is equipped with a push-up device that moves the threading table up and down, so that when the strip is running at high speed, the threading table moves downward to move it away from the high-speed pass line. A threading table for strip processing equipment, characterized by the following configuration.