JPH06106221A - Material turning gear for roughly lined rolling mill - Google Patents

Abstract

PURPOSE:To shift the material turning gear of a roughly lined rolling mill to an arbitrary caliber position of a rolling roll at each stand. CONSTITUTION:A traveling member 10 which can travel freely on traveling rails 5, 6 mounted on the front of the roughly lined rolling mill in the axial directions of rolling rolls 7, 8, 9 is provided. The traveling member 10 is provided with a material passage. On supporting members 17, 18 fixed to the traveling member are provided with a turning member 25 supported rotatably round the axis of the material, an air cylinder 41 to turn the turning member, a pair of upper and lower feed rollers 26, 27 which are provided on the turning member so that they can attach or detach to or from the material passage to open or shut it, grip the material passing the material passage at the attaching time and release the grip at the detaching time, a hydraulic cylinder 31 to attach or detach to or from the feed rollers and a return guide 43 to receive the material which is mounted on the supporting member and returns from the rolling roll.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material rolling device provided on the front surface of a rough rolling mill.

[0002]

2. Description of the Related Art In a conventional rough row rolling mill, for example, a material guide dropping device 71 as shown in FIG. 10 is fixed to the front surface of a first stand, and a material rolling device 81 as shown in FIG. It is fixed to the front of the 3 stand. In such an apparatus, for example, the material that has passed through the 1-pass caliber of the first stand is then sent through the 2-pass caliber onto the rotating roller 72 of the material guide and drop device 71, and when it is on the roller, the cylinder.
By the operation of 73, it is dropped along the oblique plate member 75 by the falling member 74 that is laterally moved as shown by the arrow. The dropped material is then carried to the front surface of the second stand by a carrying member (not shown), passed between the rollers 82 and 83 of the material turning device 81, and turned about 45 ° by the operation of the cylinder 84, and then the second stand. Threaded through any of the Calibers. In this way, the material is rolled into a predetermined shape through the second stand, the third stand and the material.

[0003]

By the way, in the material guiding and dropping device 71 of the conventional device, since the pass schedule is fixed, the rolling rolls 76, 77 of the first stand,
There is no freedom of caliber formation for 78. Caliber pitch is constrained by equipment space. When the material is twisted, there is a problem that the material is clogged in the material guide and drop device 71. Further, in the material turning device 81, the caliber pitch is restricted by the device space. The gap between the rollers 82 and 83 in the turning device cannot be adjusted freely. There was a problem that the turning device and exit toy had to be moved each time the pass schedule changed. Further, as a whole, since there is no pushing force for pushing the material into the caliber of the rolling roll of each stand in addition to the table roller, there is a problem that biting trouble occurs when pushing the material such as HSS or titanium alloy.

Therefore, an object of the present invention is to provide a device capable of solving the above-mentioned conventional problems by making it possible to shift the turning device to an arbitrary caliber position of the rolling roll of each stand.

[0005]

In order to achieve the above-mentioned object, the invention of claim 1 is a travel provided on a travel rail provided on the front surface of a rough rolling mill so as to be able to travel in the axial direction of a rolling roll. A turning member supported by a supporting member fixed to the running member so as to be able to turn about the axis of the material; and a first actuating member for turning the turning member. And a pair of upper and lower feed rollers which are provided on the turning member so as to be capable of contacting and separating so as to open and close the material passage, grip the material passing through the material passage when approaching, and release the grip when separating, and the feed rollers. A second actuating member for bringing the roller into and out of contact with the supporting member,
A return guide is provided for receiving the material that returns through the rolling rolls. According to a second aspect of the present invention, in the first aspect of the invention, a pair of feed rollers is
A drive member for rotating the lower feed roller is provided on the turning member.

[0006]

When the traveling member travels on the traveling rail and is positioned in front of the predetermined rough rolling mill, and when the material is fed into the rolling member of the traveling member, the second actuating member is actuated to move the material. It is gripped between both feed rollers. The first actuating member is actuated after gripping, and the turning member is turned with respect to the support member. After the completion of turning, the material is sent to the rolling roll side by the feed roller and rolled. After rolling, the traveling member travels on the traveling rail up to the front of the next rough row rolling mill, and the return guide provided on the traveling member and simultaneously traveling receives the material conveyed from the rear surface to the front surface of the rolling roll. To be

[0007]

FIG. 1 is a partially cutaway front view of an embodiment of the present invention, and FIG. 2 is a left side view of FIG. In FIG. 1, reference numeral 1 is a first stand of a three-stage rough rolling mill, and a machine frame 2 for a rolling device is provided on the front surface of the first stand 1 so as to be located between the front table rollers 3 and 3. . Traveling rails 5 and 6 are arranged on the machine frame 2 at different levels along the axial direction of the rolling rolls 7, 8 and 9 of the first to third stands of the rough rolling mill. , 6 is provided with a traveling member 10 so as to be freely movable. The traveling member 10 includes a main body 13 having traveling portions 11 and 12 mounted on the traveling rails 5 and 6, and the main body 13 has an AC body.
A servo motor 14 is mounted, and a pinion 15 mounted on the motor shaft is driven by the motor 14 to rotate on a rack 16 arranged on the machine frame 2 near the traveling rail 6 to move the traveling member 10. It is said that it can run freely.

As shown in FIGS. 3 and 4, a pair of ring-shaped supporting members 17 and 18 are fixed to the upper surface of the main body 13 with bolts 19 and 20 at predetermined intervals in the material passing direction, and the supporting members are supported. Member 1
As shown in FIG. 5, between 7 and 18, a rectangular solid member 21 having four columns, a top plate, and a bottom plate, and a hollow member fixed on both sides of the frame member 21 and having a material passage on the inner peripheral side. Cylindrical part 22, 23
The turning member 25, which is composed of
The other cylindrical portion 23 is rotatably fitted in and supported by the supporting member 18. As shown in FIGS. 6 to 9, a pair of upper and lower feed rollers 26 and 27 for gripping the material passing through the material passage when approaching and releasing the grip when separated are provided in the frame-shaped member 21 of the turning member 25, respectively. Both ends are supported by bearings. 28 and 29 are bearing retainers that are integrated with the bearing, and the portions that project to both sides are frame-shaped members 21
, The lower feed roller 27 is immovable, and the upper feed roller 26 opens and closes the material passage with respect to the lower feed roller 27 by a hydraulic cylinder 31 provided above the frame-shaped member 21. It is possible to approach and separate. Reference numeral 32 denotes a drive motor connected to the shaft of the lower feed roller 27 via a coupling 33. The drive of this motor 32 drives the lower feed roller 27 to rotate, and the material gripped by both rollers 26, 27 is rolled by a rolling roll 8 It can be pushed toward the caliber 9

In FIG. 9, 35 and 36 are cylindrical portions 22 and 23 of the turning member 25.
Material guides 37 and 38, which are respectively fitted and disposed in the material passages, are bearing metals. In FIGS. 7 and 8, reference numeral 40 denotes a bifurcated mounting portion projecting from the large diameter portion of the cylindrical portion 23.
A rod tip portion of an air cylinder 41 attached to the main body 13 is attached to the body 40, and the turning member 25 is actuated by the operation of the air cylinder 41 to form a predetermined angle about the axes of the support members 17 and 18, approximately 90 ° in this example. It is designed to be turned. 1 and 2, reference numeral 43 denotes a toy-shaped return guide having an upper opening for returning and receiving the material coming through the caliber of the rolling rolls 7 and 8, and the support members 18 and 19 of the supporting members 18 and 19 via the lower brackets 44 and 45. It is attached to the upper flat surfaces 18a, 19a (see FIGS. 3 and 4) with bolts or the like. An inlet guide 46 is attached to the lower bracket 44 and an outlet guide 47 is attached to the lower bracket 45 to guide the material fed into the turning member 25. 48 is an inlet guide 46 and a supporting member
It is a rectangular frame-shaped member that is fixedly installed on the front surface of the main body 13 between 17 and the frame-shaped member 48 has a pair of upper and lower material guide guides.
50 and 51 are provided.

Next, the operation of the above embodiment will be described. By driving the AC servomotor 14, the traveling member 10 moves the traveling rail 5,
No. 1 when you run over 6 and are in front of the first stand 1.
The front table roller 3 and the rear table roller (not shown) of the stand 1 rotate normally. The material is conveyed by the table roller 3 by the normal rotation of the both table rollers, and is fed into the turning member 25 through the inlet guide 46 and the guide guides 50 and 51. With respect to the material fed into the turning member 25, a control circuit (not shown) issues a command as to whether the material should be turned or not need to be turned. The material is detected by an inlet sensor (not shown) provided in, the hydraulic cylinder 31 is activated after a predetermined time by the timer, the upper feed roller 26 moves downward,
The material is gripped between the lower feed roller 27. Almost at the same time, the air cylinder 41 is operated and the turning member 25 is turned about 90 ° with respect to the supporting members 17 and 18. After the rotation is completed, the motor 32 is driven and the lower feed roller 27 is normally rotated. At the same time, the front table roller 3 and the rear table roller rotate in the forward direction, which causes the material outlet guide 47.
After that, it is fed to the rolling rolls 8 and 9 of the first stand 1 and rolled by the caliber of the rolling rolls. After rolling, the material is transported to the rear surface side of the second stand by a transport member (not shown).

In the case of a material that does not need to be turned in the above, the turning member 25 is not turned by the air cylinder 41 at approximately 90 °, and the grip and feed for the other materials are the same.

Next, the AC servomotor 14 is driven again, and by this driving, the traveling member 10 travels on the traveling rails 5 and 6, and when it is positioned in front of the second stand, the rear tilting table (not shown) is raised. After that, the front table roller and the rear table roller of the second stand reversely rotate, and the material is conveyed from the rear surface to the rolling rolls 7 and 8 of the second stand by the reverse rotation of the table roller, and the material is rolled by the caliber of the rolling roll. To be done. After rolling, the material is sent to and received by the return guide 43, further guided to the front side by the rotating roller provided in the guide, and dropped onto the front table roller 3. Thus, in this embodiment, rolling is further performed from the second stand to the third stand, but the rolling of the third stand may not be performed according to the pass schedule.

The traveling member 10 and the supporting members 17 and 1 of this embodiment
8. The turning member 25 and the like are shown as preferable examples by way of example, and other shapes and structures are not excluded.

[0014]

Since the invention of claim 1 has the above-mentioned structure, the turning device can be shifted to an arbitrary caliber position of the rolling roll. Therefore, the caliber can be formed at any position on the rolling roll, and the cylinder length of the rolling roll can be utilized to the maximum. Further, the gap between both feed rollers can be arbitrarily adjusted by the operation of the second operating member, and the return guide can be moved by the traveling member together with the turning device. There is no need to move the return guide each time. According to the invention of claim 2, the lower feed roller is driven to rotate by the driving member, so that the force of pushing the gripped material becomes strong, and the problem of biting into the rolling roll which has been conventionally caused is eliminated, and high speed steel, titanium alloy, etc. It has an excellent effect that it can be surely pushed in even with the above material.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of an embodiment of the present invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is a front view of a support member.

FIG. 4 is a front view of a support member.

FIG. 5 is a vertical sectional front view of a turning member.

FIG. 6 is a front view of a main part.

FIG. 7 is a left side view of a main part.

FIG. 8 is a right side view of a main part.

9 is a cross-sectional plan view taken along the line AA of FIG.

FIG. 10 is a side sectional view showing a conventional device.

FIG. 11 is a front cross-sectional view showing a conventional device.

[Explanation of symbols]

 1 1st stand 2 Machine frame 3 Front table roller 5,6 Traveling rail 7,8,9 Rolling roll 10 Traveling member 17,18 Supporting member 25 Rolling member 26,27 Feed roller 31 Hydraulic cylinder 32 Drive motor 41 Air cylinder 43 Return guide

Claims (2)

[Claims] 1. A traveling member provided so as to be able to travel in the axial direction of a rolling roll on a traveling rail provided on the front surface of a rough rolling mill, the traveling member having a material passage, and the traveling member. A slewing member supported by a supporting member fixed to the slab so that the slewing member is rotatable around the axis of the material;
An operating member and a turning member which are provided so as to be able to come into contact with and separate from each other so as to open and close the material passage, grip the material passing through the material passage when approaching, and release the grip when separating 1
A pair of feed rollers, a second actuating member for bringing the feed rollers into and out of contact with each other, and a return guide provided on the support member for receiving a material that returns through a rolling roll and passes therethrough. Material rolling device for rough row rolling mill. 2. The material rolling device for the rough rolling mill according to claim 1, wherein a driving member for rotating the lower feed roller of the pair of feed rollers is provided in the rolling member.