JPS6138716A - Method and device for guiding passing-sheet in leveler - Google Patents

Abstract

PURPOSE:To prevent a metallic strip from meandering and to pass the strip smoothly by moving >=1 pair of upper and lower rolls, used for holding the strip between them in its thickness direction, in the sheet-width direction. CONSTITUTION:A passing-sheet guiding device 2 is installed on the upstream side of a leveler 1, and a meander sensor 3 and an arithmetic control unit 4 are provided to the same side. The device 2 is formed by providing upper and lower guide rolls 15, 12 to a moving frame 6 capable of moving in the width direction of a metallic strip (s). In case of leveling the shape of strip (s) by the leveler 1, the frame 6 is moved to a required position in conformity with the sheet (s) width to hole both ends, in the width direction of strip (s), between the rolls 12, 15. Then the rolls 12, 15 are rotated through gears 11, 14 by driving a motor 16, to force the strip (s) to pass through the leveler 1. When the meandering of strip (s) is generated, the sensor 3 outputs a signal to the unit 4 to compute the meandering quantity by the unit 4, which outputs a command signal to move the frame 6 to the sheet-width direction. The rolls 12, 15 are moved in the sheet-width direction while holding the strip (s) between them, to correct the meandering of strip (s).

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to roll bending using a leveler.
In addition to correcting the meandering of the metal strip fed to the leveler,
The present invention relates to a method and device for guiding a metal strip in a leveler that improves the threading performance by applying a pushing force to a metal strip.

[Conventional technology]

Roll bending is effective when correcting ear waves and mid-length elongation with a leveler.

[Problem that the invention seeks to solve]

However, when roll bending is performed using a leveler, there are problems in that meandering tends to occur in the metal strip and the threadability is poor.

In view of the above circumstances, the present invention has been made for the purpose of providing a leveler threading guide device that does not cause meandering in a metal band plate and has good threading performance when roll bending is performed using a leveler.1. . 1 Ah.

[Failure to solve the problem]

The present invention includes a frame that can move in the width direction of the metal strip, a guide roller that is disposed on the frame and can hold the metal strip at a desired position from the front and back sides of the metal strip, and a guide roller if necessary. A device is provided for driving the rollers.

[For production]

Therefore, in the present invention, the metal strip is passed through the leveler with its front and back surfaces held between guide rollers, and when the metal strip is meandering, the frame body moves in the width direction of the metal strip, thereby correcting the meandering of the metal strip. be exposed.

〔Example〕

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

FIG. 7 shows an outline of equipment equipped with the sheet threading guide device of the present invention, in which (1) is a leveler and (2) is a leveler (1).
(3) is a meandering sensor, (4) is a meandering calculation and control device, and (8) is a metal strip plate.

The details of the sheet passing guide device (2) will be explained with reference to FIGS. 1 to 6. The metal strip (8)
An arm (8) is pivotally connected via a pin (7) to a movable frame (3) which is movable in the width direction of the arm (8).
is made to be able to swing up and down by a fluid pressure cylinder (9), and is attached to a bracket (10) disposed on the movable frame (3).
A guide roller a2 that can be rotated via a gear αυ
A bracket 03) is attached to the tip of the arm (8) with a pin so that the bracket 03) can be maintained in a substantially horizontal state at all times, and a guide roller is rotatable via a gear 04) to the bracket α3). (Mount 151 so that it is located above the guide roller a.

The motor aO1 reducer (17) is installed at the required position of the moving frame (3).
) α mark is arranged, an intermediate shaft +201 supported by a bearing (10) is connected to the output shaft of the reducer α mark, and a gear (21) fixed to the tip of the intermediate shaft (20) is meshed with the gear αυ. , an arm pivoted to an intermediate shaft (20) so as to be able to swing back and forth (a gear (23) is pivoted to the two upper ends of the arm (the gear e3)).
is engaged with the gear 04), the rear end of the fluid pressure cylinder (24) is pivotally connected to the column (23) protruding from the moving frame (3), and the rond (2) of the fluid pressure cylinder r24) One tip is pivotally connected to the arm (22), and the gear (c) is always connected to the gear (c).
14) to prevent gear (23) from coming off gear α (a).

The sheet passing guide device (2) having the above configuration is provided on both sides of the metal strip (8) in the width direction, and has left and right movable frames (2) that can move in the width direction of the metal strip (8). is a metal strip (
When correcting meandering in step 8), it is possible to move in the same direction at the same speed. In addition, in the figure (2e is the moving frame (3)
The wheels supporting the , (5) are the rails.

When the leveler (1) is used to correct the shape of the metal strip (8), the fluid pressure cylinder (5) is used to correct the shape of the moving frame (3).
to the required position according to the width of the metal strip (8),
The fluid pressure cylinder (9) lowers the guide roller α, the guide rollers (121α) clamp both ends of the metal strip (8) in the width direction, and the motor ao is driven to rotate the guide roller αω. By applying a pushing force to the metal strip (8), the metal strip (8) is passed through the leveler (1).

When a meandering occurs in the metal strip (8), the meandering is detected by the meandering sensor (3) and a signal is sent to the meandering calculation control device (4).
), signal processing is performed to calculate the amount of meandering, and the signal is output as a command signal to the control valve of the fluid pressure cylinder (5). The movable frame body (3) moves in the same direction in the width direction of the metal strip (8).

Therefore, the guide rollers 2α are moved in the width direction of the metal strip (8) while holding the metal strip (8), and the meandering of the metal strip (8) is therefore corrected. Guide roller (1
3 (Li2 is a horizontal roller that clamps both ends of the metal strip (8) in the width direction from above and below, so even if the metal strip (8) is a thin plate, the width edges of the strip are fixed when correcting meandering. There is no possibility of bent parts or buckling.

FIG. 4 shows another embodiment of the present invention. In this embodiment, a pull pack cylinder (
A nut (c) was fixed to the upper part of the moving frame (3), a vertical screw shaft (to) was screwed onto the nut, and the nut (c) was arranged on the moving frame (3). The spline portion of the screw shaft (to) is fitted into the rotatable worm wheel (01), and the worm (to), which can be rotated by the motor G2, is meshed with the worm wheel (0). Even with such a configuration, the guide roller (Li1
The metal strip plate (8) can be held between the metal strip plates 9 and the metal strip plate (8) can be threaded and the meandering can be corrected.

FIG. 5 shows still another embodiment of the present invention, in which a guide roller (15
) is raised and lowered by a fluid pressure cylinder (34), and a guide rod C35) is attached to the bracket (I3). In this case as well, the same effect as in the embodiment described above can be achieved.

FIG. 6 shows yet another embodiment of the present invention, in which both the upper and lower guide rollers (15) (121) move up and down. In this case, the gear (11) and (2υ) Connect with link (36i) and connect gears α (a) and (c) with link (3
gear α1 in synchronization with the guide roller α5)Q.
) (21), α4) A fluid pressure cylinder (2) 00 is connected to the link (g) C37) so that the (23) can be raised and lowered,
Gear (2]) (c) and geared motor (4f) (4υ
Concatenate. With such a configuration, operation can be performed without any problem even when either of the guide rollers α or α moves up or down.

In addition, in the embodiments of the present invention, a case has been described in which the guide rollers are provided separately on the left and right sides of the metal strip, but it is also possible to provide one guide roller on the upper and lower sides without separating them on the left and right sides, and the gist of the invention is that Of course, various changes can be made without departing from the above.

〔Effect of the invention〕

According to the method and device for guiding a metal strip in a leveler of the present invention, meandering of the metal strip can be easily prevented even when roll bending is applied to the leveler to correct the wave or mid-elongation of the metal strip. It is possible to achieve various excellent effects such as being able to improve sheet threadability.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the sheet passing guide method and device in a leveler of the present invention, Fig. 2 is a view taken in the direction of the ■ arrow in Fig. 1, and Fig.
The figure is an explanatory diagram of a driving device used in the method and device for guiding a sheet in a leveler of the present invention, FIG. 4 is an explanatory diagram of another embodiment of the method and device for guiding a sheet in a leveler of the present invention, and FIG. FIG. 6 is an explanatory diagram of still another embodiment of the sheet passing guide method and device in a leveler of the present invention, and FIG. 7 is an explanatory diagram of still another embodiment of the sheet passing guide method and device in a leveler of the present invention. FIG. 2 is an explanatory diagram of the entire sheet passing guide method and device in the leveler of the present invention. In the figure, (1) is a leveler, (2) is a threading guide device, and (3) is a leveler.
) is a meandering sensor, (4) is a meandering calculation control device, (3)
is a moving frame, (11) is a gear, α is a guide roller, α station is a gear, a is a guide roller, αe is a motor, (17)
as indicates the reducer, (A) indicates the intermediate shaft, 01) indicates the gear, (2 indicates the arm, and Gl! ■ indicates the gear.

Claims (1)

[Claims] 1) At least one pair of upper and lower rollers that clamp the metal strip in the thickness direction are moved in the width direction of the strip to place the metal strip at a predetermined threading position. Guide method for sheet threading in a leveler. 2) A sheet passing guide device for a leveler, characterized in that a frame body movable in the width direction of the metal strip is provided with guide rollers capable of holding the metal strip at a desired position from the front and back sides of the metal strip. 3) A guide roller capable of holding the metal strip at a desired position from the front and back sides of the metal strip is disposed on a frame that can move in the width direction of the metal strip, and a roller driving means is connected to the guide roller. Features: A threading guide device in a leveler.