JP3413538B2 - Side guide device on the entrance side of the finishing mill - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side guide device on the entry side of a finishing mill.

[0002]

2. Description of the Related Art As a conventional side guide device on the entry side of a finishing mill, for example, an electric screw type side guide device or a rack and pinion tuning type hydraulic guide device is known. Among these, the electric screw type side guide device has a slow opening / closing speed of the side guide, and therefore,
Since it is a preset type and the short stroke at the rear end of the plate is slow, it is necessary to have an extra opening and closing width relative to the plate width, and there is a drawback that the meandering and camber become large.

A rack and pinion tuning type hydraulic guide device is described, for example, in Japanese Utility Model Laid-Open No. 2-87503, which has a structure as shown in FIG.
In FIG. 7, 71 is a side guide head, 72 is a side guide roller, 73 is a rack beam, 74 is a pinion meshing with the rack of the rack beam 73, 75 is a pinion shaft, 76 is a bearing, and 77 is a hydraulic cylinder. Reference numeral 78 is its piston rod, 79 is a pin pivotally attaching the side guide head 71 and the rack beam 73, 80 is a pin pivotally attaching the side guide head 71 and the piston rod 78, 81 is a rolled material, 82 Is an arrow indicating the traveling direction of the rolled material 81.

That is, the rack beam 73 and the piston rod 78 of the hydraulic cylinder 77 are synchronized with each other to make the rolled material 8
The position of the material 81 is controlled while pressing 1 in the width direction.

[0005]

However, the conventional rack and pinion tuning type hydraulic guide device shown in FIG.
Since the structure is complicated and various equipments are placed under the rolled material 81, stable operation is difficult and maintenance is difficult, and moreover, the transmission of force between the rack of the rack beam 73 and the pinion 74 is complicated. There is a problem that the friction is large, the load (reaction force) cannot be measured accurately, and it cannot be used for control.

The present invention is intended to solve the above problems. That is, the present invention has a high opening / closing speed, a simple structure, and stable operation, maintenance,
An object of the present invention is to provide a side guide device on the entry side of a finishing mill, which can easily measure the reaction force of a rolled material.

[0007]

In order to achieve the above-mentioned object, the present invention has a guide surface which is parallel to a rolling line and is opened / closed at right angles to the rolling line.
In the side guide device on the finishing mill entrance side having a pair of side guide heads, the both side guide heads include:
Each of the opening / closing guide portions has an opening / closing guide portion that is mounted outward at a right angle to the rolling line, and a hydraulic cylinder that drives the side guide head to open and close. It has a guide roller adapted to be received by the downstream surface side and the upstream surface side, and the guide roller and the hydraulic cylinder are arranged on the inlet side of the housing post.

[0008]

According to the present invention, there is provided a side guide device on the entry side of a finishing mill, which has a pair of left and right side guide heads whose guide surfaces are parallel to the rolling line and which are opened and closed at right angles to the rolling line. Each of the side guide heads has an opening / closing guide portion that is mounted outward at a right angle to the rolling line, and a hydraulic cylinder that drives the side guide heads to open and close. A guide roller adapted to receive the load on the downstream surface side and the upstream surface side of each of the opening and closing guide portions,
Moreover, since the guide roller and the hydraulic cylinder are arranged on the entrance side of the housing post, since the side guide head is opened and closed by the hydraulic cylinder,
Since the opening / closing speed is fast and the load from the rolled material is received by the guide roller via the opening / closing guide portion, stable operation is always possible.

[0009]

1 is a partially cutaway plan view showing a first embodiment of the present invention, and FIG. 2 is a front view of the same. In FIG. 1, 1 is a finishing mill, 2 is a housing post, 3 is a rolled material, 4 is an arrow indicating a rolling line, 5 is a right side guide head, 6 is a left side guide head, and 7 is parallel to the rolling line 4. A right side guide surface, 8 is a left side guide surface parallel to the rolling line 4, and 9 is a right side guide head 5 so as to face outward at a right angle to the rolling line 4.
The right opening / closing guide section 10 is attached to the left side guide head 6 so that the right opening / closing guide section 10 is at a right angle outward with respect to the rolling line 4, and 11 is the right opening / closing guide section 9. A downstream surface, 12 is an upstream surface of the right opening / closing guide portion 9, 13 is a downstream surface of the left opening / closing guide portion 10, 14 is an upstream surface of the left opening / closing guide portion 10, and 15 and 16 are of the right opening / closing guide portion 9. The right downstream guide rollers 17, 18 which are erected in contact with the downstream surface 11 are the right upstream guide rollers 17, 18 which are erected in contact with the upstream surface 12 of the right opening / closing guide portion 9. Is the downstream surface 13 of the left opening / closing guide portion 10.
Left downstream guide roller, which is erected in contact with
Reference numerals 1 and 22 denote a left upstream guide roller which is erected in contact with the upstream surface 14 of the left opening / closing guide portion 10, 23 is an upper right plate, 24 is a right bottom plate, 25 is an upper left plate, 26 is a left bottom plate, 2
7 and 27 are laid on the right bottom plate 24 to form the right opening / closing guide portion 9
Right sliding guide rails 28, 2 which slidably receive
Reference numeral 8 denotes a left sliding guide rail which is laid on the left bottom plate 26 and slidably receives the left opening / closing guide portion 10, and 29 is positioned between the right sliding guide rails 27, 27 and is provided on the right bottom plate 24. A fixed right hydraulic cylinder, 30 is a piston rod of the cylinder 29, 31 is the left sliding guide rails 28, 28.
The left hydraulic cylinder fixed between the left bottom plate 26 and the left hydraulic cylinder 32 is a piston rod of the cylinder 31.

Then, as shown in FIG. 2, the tip of the right piston rod 30 and the right opening / closing guide portion 9 are connected to the right connecting fitting 3
3, the tip of the left piston rod 32 and the left opening / closing guide portion 10 are connected by a left connecting fitting 34. The right downstream guide rollers 15 and 16 and the right upstream guide rollers 17 and 18 are the upper right plate 23 and the right bottom plate 2.
4 is rotatably supported and has the left downstream guide rollers 19 and 20 and the left upstream guide rollers 21 and 22.
Is rotatably supported by an upper left plate 25 and a left bottom plate 26.

Further, as shown in FIG. 1, the right opening / closing guide portion 9, the left opening / closing guide portion 10, the right guide rollers 15, 16,
17, 18, left guide rollers 19, 20, 21, 22,
A right hydraulic cylinder 29, a left hydraulic cylinder 31 and the like are installed on the entrance sides of the housing posts 2 and 2.

In the side guide device on the entry side of the finishing mill constructed as shown in FIGS. 1 and 2, the rolled material 3 is used.
Can be guided by both side guide surfaces 7, 8.
And to open and close both side guide heads 5, 6,
By driving the hydraulic cylinders 29 and 31 separately.
That is, when the piston rod 30 of the right hydraulic cylinder 29 is contracted, the right opening / closing guide portion 9 moves in that direction to the right downstream guide rollers 15 and 16, and the right upstream guide rollers 17 and 18.
The right side guide head 5 opens by sliding on the right sliding guide rails 27, 27 while being guided by, and conversely, when the piston rod 30 is extended, the right side guide head 5 closes.

Similarly, when the piston rod 32 of the left hydraulic cylinder 31 is contracted, the left opening / closing guide portion 10 is guided in that direction by the left downstream guide rollers 19, 20 and the left upstream guide rollers 21, 22 to the left. Sliding guide rail 2
8, the left side guide head 6 opens by sliding on
On the contrary, when the left piston rod 32 is extended, the left side guide head 6 is closed.

The switching control of the pressure liquid to the hydraulic cylinders 29 and 31 for expanding and contracting the piston rods 30 and 32 is performed by a servo valve or solenoid valve (not shown). The open / close positions of the hydraulic cylinders 29 and 31 are measured by position sensors inside or outside the cylinders. Further, the reaction force of the rolled material 3 is measured by the pressure of a load cell (not shown) or the hydraulic cylinders 29, 31 and used for monitor control.

FIG. 3 is a plan view showing a part of a second embodiment of the present invention corresponding to FIG. 1 described above. That is, most of the illustrations are omitted, and only the right half is shown. In the second embodiment, the guide rollers 15, 16, 1 described above are used.
7 and 18 are attached to the opening / closing guide portion 9, and instead, a fixed guide rail 35 is provided horizontally, and when the opening / closing guide portion 9 is opened / closed when the side guide head 5 is opened / closed, the guide roller 15 is provided. , 16, 17 and 18 make contact with the fixed guide rail 35 and roll.

The part of the left half of FIG. 3 which is not shown is symmetrical with the right half.

FIG. 4 is a plan view showing a third embodiment of the present invention, and FIG. 5 is a front view of the same. In FIG. 4, 4
1 is the right edge of the strip width of the rolled material 3 described above, 42 is the left edge of the strip width, and in FIGS. 4 and 5, 43 is provided on the right side guide head 5 and the right edge 41 of the strip width is A plate width guide roller which directly guides, 44 is a plate width guide roller which is provided on the left side guide head 6 and directly guides the plate width left edge portion 42, and 45 is provided on the right side guide head 5 described above. Book opening and closing drive hydraulic cylinder, 4
6 is a receiving beam, 47 is an upper rack, 48 is the rack 4
7 is an intermediate pinion meshed with 7, 49 is a lower tuning rack with which the pinion 48 is meshed, 50 is a connecting member for coupling the lower tuning rack 49 with the tuning beam 51 under the side guide head 6, 52, 53 Is a receiving roller and 54 is a supporting roller.

In the third embodiment, the side guide heads 5 and 6 are made of a plate type to a roller type to stabilize the insertion. Although there are two side guide heads 5 and 6, they are used as guide cylinders. Is an opening / closing drive hydraulic cylinder 4
In order to simplify the hydraulic system and reduce the mechanical loss, only one of them is used. Loads in the longitudinal direction of the side guides are received by the 2 × 4 plate width guide rollers 43 and 44 so as to maintain parallelism.

FIG. 6 is a perspective view showing only a part of the fourth embodiment of the present invention. If the front view of this 4th Example is shown,
5 is the same as that of FIG. 5, but this fourth embodiment is different only in that the plate width guide rollers 43 and 44 of FIG. 5 are not provided, and therefore the illustration of the front view is omitted. In FIG. 6, 55 and 56 are side guide mounts laid under the side guide head 5 in the opening / closing direction, and 57 is a shaft provided in the lower longitudinal direction of the side guide head 5 and acting as a torsion bar. Reference numerals 58 and 58 are bearings of the shaft 57, 59 and 59 are swing levers whose bases are pivotally attached to the shaft 57, 60 and 60 are brackets which are suspended from the side guide head 5, and 61 and 61 are pivots. Wearing pin, 62, 62
Is a link member, and 63 and 63 are pivot pins.

That is, the side guide head 5 and the shaft 57
The rocking levers 59, 59 form a four-bar parallel link mechanism. A similar four-bar parallel link mechanism is also formed under the other left side guide head 6 (not shown). Therefore, the load in the longitudinal direction of the side guide can be received by the swing levers 59, 59 and the shaft 57, and can be kept parallel. By doing so, control accuracy is improved, simplification is made, and economic efficiency is improved.

[0021]

As described above, according to the present invention,
In a side guide device on the finishing mill entrance side, which has a pair of left and right side guide heads whose guide surfaces are parallel to the rolling line and which opens and closes in a direction perpendicular to the rolling line, both side guide heads include: Each of the opening / closing guide portions has an opening / closing guide portion that is mounted outward at a right angle to the rolling line, and a hydraulic cylinder that drives the side guide head to open and close. Since the guide roller and the hydraulic cylinder are arranged on the inlet side of the housing post, the side guide head can be opened and closed. Since it is performed by a hydraulic cylinder, the opening and closing speed is fast, and the load from the rolled material is guided by the guide rollers through the downstream and upstream surfaces of the opening and closing guide section. Kicking Therefore, always enabling stable operation, moreover, the structure is simple, since it is no entering of equipment at the bottom of the rolled material, maintenance becomes easy, thereby facilitating the measurement of the load of the rolling material.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view showing a first embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a plan view showing a part of a second embodiment of the present invention.

FIG. 4 is a partially cutaway plan view showing a third embodiment of the present invention.

FIG. 5 is a front view of FIG.

FIG. 6 is a perspective view showing a part of a fourth embodiment of the present invention.

FIG. 7 is a partially cutaway plan view showing an example of a conventional technique.

[Explanation of symbols]

1 finishing mill 2 housing posts 3 Rolled material 4 Arrow showing the rolling line 5 Right side guide head 6 Left side guide head 7 Right side guide surface 8 Left side guide surface 9 Right opening / closing guide section 10 Left opening guide 11 Downstream of the right opening guide 12 Upstream surface of right opening / closing guide section 13 Downstream of the left opening guide 14 Left side opening / closing guide upstream surface 15 Right front guide roller 16 Right front guide roller 17 Right rear guide roller 18 Right rear guide roller 19 Left front guide roller 20 Left front guide roller 21 Left rear guide roller 22 Left rear guide roller 29 Right hydraulic cylinder 30 Left hydraulic cylinder 35 Fixed guide rail 41 Board width right edge 42 Board width left edge 43 Plate width guide roller 44 Plate width guide roller 45 Open / close drive hydraulic cylinder 47 upper rack 48 Intermediate pinion 49 Lower tuning rack 50 connecting members 55 Side guide stand 56 Side guide stand 57 axes 59 Swing lever

Continuation of front page (56) Reference JP-A-57-68211 (JP, A) JP-A-62-127104 (JP, A) JP-A-62-81228 (JP, A) JP-A-3-291102 (JP , A) Actual development Sho 62-46101 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B21B 39/14 B65H 23/038

Claims (5)

(57) [Claims] 1. A left / right 1 whose guide surface is parallel to a rolling line and which is opened / closed in a direction perpendicular to the rolling line.
In the side guide device on the finishing mill entrance side having a pair of side guide heads, the both side guide heads include:
Each of the opening / closing guide portions has an opening / closing guide portion that is mounted outward at a right angle to the rolling line, and a hydraulic cylinder that drives the side guide head to open and close. Has a guide roller adapted to be received by the downstream surface side and the upstream surface side, and the guide roller and the hydraulic cylinder are arranged on the inlet side of the housing post. Side guide device on the side. 2. The finishing mill insert according to claim 1, wherein the guide roller for receiving a load from the rolled material is provided on the fixed side and is in contact with each of the downstream surface and the upstream surface of the opening / closing guide portion. Side guide device on the side. 3. A guide roller that receives a load from the rolled material is provided on each of the downstream surface side and the upstream surface side of both opening and closing guide portions and is in contact with a horizontally fixed guide rail. The side guide device on the entry side of the finishing mill according to 1. 4. A pair of left and right side guide heads each having a plurality of plate width guide rollers for directly guiding the plate width edge portions of the side of the rolled material, and the pair of side guide heads. One opening / closing drive hydraulic cylinder provided on either side, an upper rack provided directly below the side guide head on which the opening / closing drive hydraulic cylinder is provided, and an intermediate pinion meshing with the upper rack. 2. A lower tuning rack that meshes with the intermediate pinion, and a connecting member that connects the lower portion of the side guide head not provided with the opening / closing drive hydraulic cylinder and the lower tuning rack. Side guide device for the finishing mill entry side. 5. An open / close drive hydraulic cylinder provided on either of the pair of left and right side guide heads, and an upper rack provided directly below the side guide head on which the open / close drive hydraulic cylinder is provided. And a connecting member that connects the lower tuning rack that meshes with the intermediate pinion that meshes with the upper rack, and the lower tuning rack that couples the lower portion of the side guide head where the opening / closing hydraulic cylinder is not provided. And a pair of left and right side guide heads, each having a side guide mounting base laid in the opening / closing direction at the lower part thereof, and a shaft as a torsion bar provided in the direction of the rolling line, 2. A finishing mill entry side according to claim 1, further comprising a swing lever having a four-bar parallel link mechanism in which a base is pivotally attached to the shaft and a tip is pivotally attached to the side guide head. Side guide device.