JPS6138706A - Edging for rolling sheet material - Google Patents

Abstract

PURPOSE:To make a device small in size and to reduce remarkably the initial investment of an installation by making a pair of edging rolls, movable in the sheet width direction, a nondriven type, for the purpose of eliminating the need for a driving device to a located at the upper part of an edging mill. CONSTITUTION:An edging mill for rolling a sheet material is provided with a pair of nondriven type edging rolls 6a, 6b and feed-roll devices 43 located in the vicinities of the outlet and inlet sides of the rolls 6a, 6b. The rolls 6a, 6b are made freely movable in the sheet width direction of the rolling material. Further, the device 43 is formed by a pair of horizontal rolls 45a, 45b, a driving device 46 for rotating these rolls 45a, 45b, and rolling reduction cylinders 49a, 49b for vertically moving at least one side of the rolls 45a, 45b.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an edge mill (width rolling mill) for rolling plate materials.

BACKGROUND ART In hot rolling mills for metal plate materials such as hot strip mills and plate mills, an edger mill is installed upstream or downstream of a horizontal mill in order to process the rolled material to a predetermined width. The edger mill of B rolls the rolled plate material to a predetermined width using edger rolls (vertical rolls) that can move horizontally in the width direction of the plate, but the mechanism for driving and horizontally moving the edger rolls is quite complex and large. However, equipment costs were high and maintenance and inspection were often inconvenient.

The outline of the conventional edge mill will be explained below with reference to the drawings. In addition, here we will mainly talk about edge mills for plate mills (thick plate rolling mills), but the Horatos l-
The general structure is the same for edge mills for other rolling mills such as lip mills.

FIG. 1 is a front view showing an example of a conventional edger mill in a plate mill line, FIG. 2 is a plan view thereof, and FIG. 3 is a sectional view taken along line A-A in FIG.

In this illustrated example, a plate material is horizontally rolled by the work rolls 2 of a horizontal mill 1 indicated by a chain line in the figure, and a reversible edger mill is located behind the horizontal mill 1 in the direction of progress of the plate material (arrow Z in the figure). A table roller 3 is provided on the edger inlet side, and a table roller 4 is provided on the edger outlet side (between the horizontal mill 1). Etziyamil is
Etsuya housing 5 and Etsuya roll (vertical roll)
A pair of edge roll assemblies 7 consisting of 6a and 6b
a, 7b, an edger roll rotation drive fil[s, an edger roll horizontal movement device 9a, 9b, an edger roller, an outlet feed roller 10a, 10b, and other main members.

As shown in the figure, the edger housing 5 is located on the rolling mill drive side (D
) and the work side (W) Shoe plate with IC installed l, lla
, llb, lla, each pair of upper housings 12a, 12b and lower housings 13a, 13 are fixedly mounted on
b, and an intermediate housing 14a connecting these,
14 b, support beam 15 and upper and lower separators 16
a and 1.6b form a rigid frame. The edge roll assemblies 7a and 7b each include a pair of rails 17-- which are arranged in parallel at the stepped portions of the upper housings 12a and 12b, respectively.
1: supported via rollers 18, and upper and lower housings 12a, 12b, 13a.

It is mounted so as to be horizontally movable in the width direction of the rolled material 19 (in the direction of arrow a in the figure) along the inner guide surface of 13b. Further, the edge roll assemblies 7a, 7b are driven by one motor 20, a pair of speed reducers 21a, 21b, and a telescopic drive shaft 22a.

22b and bevel gears 23a, 23b, the edger rolls 6a, 6b are configured to be driven to rotate in forward and reverse directions at synchronous speeds. Note that both reducers 21a and 21b
The input side pinion shaft of is connected by a tie rod 24.

The horizontal movement of the rollers 6a and 6b is achieved by installing a pair of screw shafts 25a for upper and lower hooks on the outside of each roll assembly 7a and 7b.
25b, and a pair of upper and lower nuts 30a in gear boxes 29a, 29b are connected by a pair of motors 26a, 26b via reducers 27a, 27b and drive shafts 28a, 28b.

30b and drives the screw shafts 25a, 25b which are screwed into the nuts 30a, 30b.

6b can move in opposite directions to each other in the board width direction a. Furthermore, a gear box 29a.

Since the gear shaft 29b is connected by a tie rod 31, both edger wheels 6a and 6b can move horizontally at synchronous speeds. The output feed rollers 10a and 10b are driven to rotate in forward and reverse directions by motors 32a and 32b, respectively.

The edge mill in this illustrated example is constructed as described above, and the rolled material 19 exiting the horizontal mill (not shown) (located on the front side in the Z direction) is rolled to the required width by the edge rollers 6a and 6b. , and is sent to a horizontal mill 1 where it is finished to the required thickness. In the case of the illustrated example of the equipment, the rolled material 19 is normally rolled in multiple passes by reciprocating between the edger mill and the horizontal mill 1.

However, in the edge mill having the structure described above, the upper part of each edge roller 6a, 6b is connected to the bevel gear 23a.
, 23b, and the height of the roll assemblies la and 7b becomes 'K', and the mounting position of the rotary drive device also becomes high, so that the total height of the edger housing 5 and the motor base 33 increases. , it is necessary to increase the strength and rigidity of both of these members, and the equipment cost becomes high. In addition, since there is a single-moving device on the top of the Etsuya mill, the structure is complicated, making maintenance and inspection of the equipment, including reassembly work of the Etsuya rolls 6a and 6b, extremely inconvenient, resulting in increased maintenance costs. .

The present invention is intended to eliminate the above-mentioned drawbacks, and has been made for the purpose of providing an edger mill that has a simpler and more compact structure and can reduce equipment costs.

In order to achieve the above object, the edger mill of the present invention has a pair of edger rolls that are movable in the width direction of a rolled plate material. A feed roller device is provided in close proximity to the edger roll on at least one of the side and the exit side, and includes a pair of upper and lower horizontal rollers, a rotation drive device for the horizontal rollers, and a reduction cylinder that moves at least one of the horizontal rollers up and down. It is something that has been established.

The details of the configuration of the present invention will be explained below based on the embodiment shown in the drawings. The same parts as in the conventional device are denoted by the same reference numerals as in FIGS. 1 to 3 above. The detailed explanation will be omitted.

4 is a front view of an edger mill for a plate mill according to an embodiment of the present invention, FIG. 5 is a plan view thereof, and FIG. 6 is a sectional view taken along line BB in FIG. 4.

As shown in the drawings, an edger roll assembly 40a of the present invention
, 40b, Etsiyaro) I, 6a.

6b is of a non-driving type without a rotational drive device, and is horizontally movable in the direction of arrow a on rails 17 provided at the stepped portions of upper housings 41a and 41b via rollers 18, similar to conventional edger mills. It will be mounted. Also, a horizontal movement device 9a for the edger roll assemblies 40a, 40b.

9b and upper and lower edger housings 41a.

Since it is the same as the conventional device, the explanation will be omitted.

As shown in FIG. 6, a stopper 41c is provided to prevent the edger roll assemblies 1J40a, 40b from jumping up.

Next, in the present invention, the edge roll 6a.

A feed roller device 43 forming a pinch roll is installed close to at least one of the inlet side and the outlet side (the inlet side in the illustrated example) of the roller 6b.

This feed roller device 43 includes a pair of frames 44a and 44b that are erected opposite each other on the inlet side end surface of the Etsujano/Using 41 with the position of the rolled material 19 in between, and a pair of upper and lower horizontal rollers 45a and 45b. Horizontal rollers 45a, 45b
It is composed of main members such as a rotating V-motion device 46.

Among the horizontal rollers 45a and 45b, the upper roller 45a
The bearing boxes 47 and 4 are movable in the vertical direction along the guide surfaces 44c of the frames 44a and 44b, but are restrained from moving back and forth in the traveling direction Z of the rolled material 19. is rotatably supported at both ends. In addition, the lower roller 45
b is a bearing box 4 fixed to the lower part of frames 44a and 44b.
8.48, both ends of which are rotatably supported.

Furthermore, the bearing boxes 47, 47 for the upper rollers 45a are connected to hydraulic pressure-operated reduction cylinders 49a, 49b fixed to the tops of the frames 44a, 44b, respectively, and the beam 5
0, the cylinders 49a,
The structure is such that it can be moved up and down integrally with the beam 50 by the operation of 49b. In addition, the upper and lower horizontal rollers 4
5a and 45b are spindles 51 with universal joints, respectively.
a and 51b to the output shaft of the binion stand 52, and are driven by a motor 53 to rotate forward and backward in mutually opposite directions at synchronous speeds. The binion stand 52 and motor 53 are installed on a base 54.

When rolling a plate material to a required width dimension using the edger mill of the present invention configured as described above, the rolled material 19 entering in the direction of arrow Z is placed on the feed roller device 43. Rolling can be easily carried out by applying pressure with the lower horizontal rollers 45a and 45b and forcibly passing the sheet through the edge rolls 6a and 6b and the work roll 2 of the downstream horizontal mill 1. In this case, the Etsuya roll 6a
, 6b are not driven, but the horizontal rollers 45a, 4
Edger rolling (width rolling) is possible by feeding the rolled material 19 using the roller 5b and moving the edger rolls 6a and 6bie according to the required sheet width using the horizontal moving devices 9a and 9b to apply horizontal rolling. In addition, rolled material 19
The tlEfl pass rolling between the edger mill and the horizontal mill 1 can be performed by reversible rolling of the horizontal rollers 45a and 45b.

The apparatus of the above-mentioned embodiment has the center of the horizontal rollers 45a, 45b of the feed roller device 43 and the work roll 2 of the horizontal mill 1.
If the distance between the centers is shorter than the minimum length of the rolled material 19 (
For example, an attached edger for a horizontal mill, etc.), and in this case, it is possible to thread the sheet with one feed roller device 43 on the edger entrance side as shown in the figure, but the center spacing is the minimum length of the rolled material 19. If the diameter is larger than that, a feed roller device similar to that on the input side may be installed on the outlet side of the edger mill.

As explained above, in the device of the present invention, the edger roll is of a non-driving type, so there is no need for a driving device on the upper part of the edger, so the structures of the edger roll assembly and edger housing are extremely simple and compact, and the structure is sturdy. There is no need for a motor base, which greatly reduces equipment costs, and also makes it easier to reassemble the edge roll and maintain the equipment.
This has the advantage that inspection work becomes extremely easy and maintenance costs can be reduced.

On the other hand, in the present invention, a feed roller device is added compared to the conventional device, but the feed roller device is
Compared to conventional edge roller drive devices, the drive device can be installed on a lower base, and the upper and lower rollers can be rotated with a single pinion stand. ), it is possible to make the structure of each component simple and compact. Therefore, the equipment cost of the entire apparatus of the present invention can be significantly reduced compared to the conventional roll-driven edger mill.

Although one embodiment of the present invention has been described in the above description, the device of the present invention is not limited to this embodiment, and various design changes can be made without departing from the gist of the invention. It is possible to implement it.

[Brief explanation of the drawing]

Figure 1 is a front view showing an example of a conventional edge mill, Figure 2
The figure is a plan view, and Figure 3 is a plan view of section A-A in Figure 1.
4 is a front view showing one embodiment of the edge mill of the present invention, FIG. 5 is a plan view thereof, and FIG. 6 is a sectional view taken along line BB in FIG. 4. In the drawing, 1 is a horizontal mill, 5 is an edger housing, 6a and 6b are edger rolls, 7a and 7b are edger roll assemblies, 8 is an edger roll rotation drive device, 9a and 9b are edger roll horizontal movement devices, and 19 is a rolled material , 26a, 26b are motors, 40a, 401) are edger roll assemblies, 41.41a, 41b, 42a, 42b are edger housings, 43 is a feed roller device, 44a, 44b are frames, 45a, 45b are horizontal rollers, 46 is a rotary drive device, 47 and 48 are bearing boxes, 49a and 49b are rollers, 50 is a beam, 51a and 51b are spindles, 52 is a binion stand, 53 is a motor, and 54 is a base.

Claims (1)

[Claims] In an edger mill consisting of a pair of edger rolls movable in the width direction of a rolled plate material, the edger roll is non-driven, and upper and lower 1 An edger mill for rolled plate material, which is provided with a feed roller device consisting of a pair of horizontal rollers, a rotation drive device for the horizontal rollers, and a reduction cylinder that moves at least one of the horizontal rollers up and down.