JP2640795B2 - Snout for continuous hot-dip plating - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snout for guiding a steel strip to a plating bath in a continuous galvanizing equipment.

[0002]

2. Description of the Related Art Conventionally, as a countermeasure for a case where a steel strip passing position is changed due to a change in a diameter of a dipping roll, a method has been devised in which a jack is attached to a snout so as to advance and retreat in front and back directions. (JP-A-1-188656)

[0003]

However, the most common cause of the change in the steel strip passing position is to correct the shape at the time of controlling the amount of adhesion of the steel strip or to correct the meandering of the steel strip. This is the case where the position is changed, and the influence of changing the diameter of the immersion roll due to wear or the like is very small. When the position of the immersion roll is changed, the snout position has to be newly adjusted each time the position is changed in the conventional technique. In addition, even when electrically coupled, more than one drive equipment is required, which increases the equipment cost, and when the snout drive device breaks down, only the immersion roll moves and the steel strip may come into contact with the snout. There was also.

[0004]

SUMMARY OF THE INVENTION According to the present invention, in order to eliminate the disadvantages of the prior art, the tip is immersed in a plating bath, and
The snout inclined in the direction of the dip roll and the vertical
Movable plating machine
A flexible portion is provided on the upper portion of the snout, and the flexible portion is provided below the flexible portion.
Snout and plating machine dipping roll frame and
Are mechanically connected by pins, and the plating machine dipping roll
The snout can be moved according to the vertical movement of the
This is a snout for continuous hot-dip plating characterized in that it is made so as to have a structure as described above.

[0005]

Specifically, a fulcrum 7 is provided on either the side surface or the front and back surfaces of the snout, and the frame of the immersion roll is connected to the snout.
And mechanically pin-joined at the joint 8. Joint 8
Is slid in the circumferential direction of the concentric circle centered on the aforementioned fulcrum 7.
And a structure that can be used. As described above, if the frame of the immersion roll and the snout are mechanically pin- joined at the joint , the snout always moves in accordance with the movement of the immersion roll.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.
FIG. 1 is a diagram for explaining an embodiment of the present invention. The zinc pot 1 is a container for storing molten zinc for plating, and the steel strip 2 is an annealed steel strip for plating having a thickness of 0.2 mm to 3.2 mm and a width of 600 mm to 1850 mm, Zinc pot 1 via furnace roll 9 and snout 5
Then, the immersion roll 3 changes the direction toward the top roll 10 and is plated. Immersion roll frame 4
Is a frame supporting the immersion roll 3, and the snout 5 and the immersion roll frame 4 are connected at a joint 8. It is desirable that there are two joint portions 8 in the plate width direction.

The immersion roll frame 4 can be vertically moved in the direction of the arrow to correct the shape of the steel strip at the plated portion of the steel strip or to correct the meandering of the steel strip. The direction is about +100 mm, the movement may be only one side in the plate width direction, and the driving means may be electric or manual. At the time of the vertical movement, the snout 5 is connected at the joining portion 8 with the support portion 7 as a fulcrum, and the snout flexible portion 6 can slide in the circumferential direction without contacting the steel strip 2. It is assumed that. The snout flexible portion can be expanded and contracted, and if it is made of a seal, it can be made of cloth or iron. The tip of snout 5 is zinc pot 1
In order to correct the shape of the steel strip at the plating portion along the traveling direction of the snout 5 and the steel strip 2 whose outgoing side part is inclined in the same direction as the plating machine immersion roll frame 4, the upper and lower sides (arrows in the figure) A flexible part 6 is provided in the vicinity of the snout 5 inlet in a facility comprising a plating machine immersion roll 3 capable of vertical movement in the direction It is characterized in that the dipping roll 3 and the frame 4 are mechanically connected to each other at the joint portion 8 and move in accordance with the vertical movement of the plating machine dipping roll 3.

[0008]

As described above, in the snout of the present invention, the portion below the flexible portion is moved in the circumferential direction from the joint with the dipping roll frame by moving the dipping roll in the plating machine in the vertical direction. It is possible to avoid the contact between the steel strip and the snout due to the wear of the dip roll and the variation in the position of the steel strip inside the snout due to the movement of the dip roll to correct the shape of the steel strip at the plating part. Yes, to prevent scratches on the steel strip surface due to contact and to avoid steel strip breakage.

[Brief description of the drawings]

FIG. 1 is a snout for continuous hot-dip plating according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Zinc pot 2 Steel strip 3 Immersion roll 4 Immersion roll frame 5 Snout 6 Snout (flexible part) 7 Support point 8 Joining part (frame / snout) 9 Furnace roll (fixed) 10 Top roll

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-236251 (JP, A) JP-A-3-104850 (JP, A) JP-A-4-2751 (JP, A) JP-A-3-236 134146 (JP, A) JP-A-6-33209 (JP, A) JP-A-6-33208 (JP, A) JP-A-1-87151 (JP, U)

Claims (1)

(57) [Claims] The tip is immersed in a plating bath and
The snout inclined in the direction of the dip roll and the vertical
Movable plating machine
A flexible portion is provided on the upper portion of the snout, and the flexible portion is provided below the flexible portion.
Snout and plating machine dipping roll frame and
Are mechanically connected by pins, and the plating machine dipping roll
The snout can be moved according to the vertical movement of the
A snout for continuous hot-dip plating , characterized in that: