JPS6030963Y2 - Combination rolling mill - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a novel proposal for a combination rolling mill, particularly one of a type in which one roll stand can be used in both vertical and horizontal rolling positions.

In a rolling mill, one roll stand supporting a pair of rolls is used, and the roll stand is selectively turned 90 degrees and installed so that the same roll can perform vertical rolling and horizontal rolling. So-called combination rolling mills are known in which rolling mills are arranged in vertical and horizontal positions.

At this time, it is necessary to lock the roll stand to the rolling mill main body in its 90 degree turned position.
At this time, whether the locking device is installed in a horizontal position by turning it 90 degrees or installed in a vertical position,
It is necessary that the locking means can be accurately locked and that it does not cause any trouble in the assembly operation of the roll stand or in the construction of the rolling mill.

The present invention meets these demands and thereby facilitates the common switching of roll stands during horizontal and vertical rolling.The present invention is characterized by a stand that supports a pair of rolling rolls. In a combination rolling mill in which the roll axis selectively incorporates both a horizontal position and a vertical position, a hook having locking claws on both sides is provided at one corner of the stand shared in both the positions. A pressing rod is rotatably supported by a shaft, and a compression spring whose one end is rotatably supported is inserted into the hook of the bracket, and the pressing rod is connected so as to constantly apply rotational force to the hook. The point is that a pin is provided to restrict the rotation of the hook.

The present invention will be described in detail below based on the illustrated embodiment. Figure 1 is a front view of the embodiment of the present invention in a vertical rolling position, Figure 2 is a front view of the same in a horizontal rolling position, and Figure 3 is the same front view. In Figures 1 and 2, 1 is a roll stand, and the stand 1 has a pair of rolling rolls. 2 and 3 are pivotably supported, and the stand 1, like known combination rolling mills, can be pulled out of the rolling mill body, turned 90 degrees at the pulled-out position, and loaded into the rolling mill in the turned position. The device can be installed in either the vertical position as shown in Figure 1 or the horizontal position as shown in Figure 2. Although the details are omitted because they are already known, the pair of rolling rolls 2 and 3 in the roll stand 1 are
When stand 1 in the figure is in a vertical position, its axis is in a horizontal position, and when stand 1 in Figure 2 is in a horizontal position, its axis is in a vertical position. It will be made available for public use.

In both figures, 4 is a device that can commonly support the roll stand 1 in both postures, and is disposed below the rolling mill body, and includes a pair of lifting shafts 4a, 4a that can be raised and lowered freely, and both lifting shafts 4a.

The bridge commonly installed over the bridge 4a is composed of a stand 4b, a lifting mechanism 4c, and the like.

Reference numerals 5 and 5 designate a pair of horizontal spindles that can move forward and backward and rotate freely, and both spindles 5 and 5 are provided with connecting portions 5a, 5a at their tips, and the connecting portions 5a*5a are in a horizontal position in the case of FIG. Shaft ends 2a, 2 of a pair of rolling rolls 2, 3
The horizontal spindles 5, 5 are driven by a drive mechanism 6.

Further, reference numerals 7 and 7 denote a pair of vertical spindles that can be raised and lowered and rotated freely, and these spindles 7.7 are similarly provided with connection parts 7a and 7a at their lower ends, and the pair of rolls 2 and
When the rolls 2 and 3 are in a vertical position as shown in the second figure, they are connected to the shaft ends 2a and 3a of the roller 3, giving rotation to both rolls 2 and 3, and the vertical spindle 7.7 is also driven by the drive. It is designed to be rotated by the mechanism via a clutch or other switching mechanism and a movement mechanism (not shown).

The present invention provides a combination rolling mill in which the pair of rolling rolls 2 and 3 can be used both as horizontal rolling rolls and vertical rolling rolls by turning one roll stand 1 through 90 degrees. As illustrated in FIG. 2, a bracket 8 is attached to one corner of the roll stand 1.
A hook 9 and a pressing rod 10 are provided on the bracket 8.

The details are as shown in FIG.
are formed symmetrically, and the central part of the hook 9 is rotatably supported on a bracket 8 by a pin shaft 11, and one end of the hook 9 is separately supported by a pivot 12 on the same bracket 8, and a compression spring 13 is inserted. The other end of the pressing rod 10 is moved upwardly by the pin shaft 11 at the center position of the hook 9.
A pin 15 is connected to the hook 9 via a pin 4 and is provided so as to give the hook 9 rotation in the direction of the arrow P about the pin shaft 11 as a fulcrum by compression and tension of the spring 13, and for restraining the rotation of the hook 9. A pair of pin holes 16a and 1 are provided with a phase difference of 90 degrees so that the hook can be locked to both the hook 9 in the horizontal position and the hook 9' in the vertical position.
6b so that it can be removably inserted and supported, and can be locked to one end of the hook 9. Reference numeral 18 is a lock pawl that removably engages with the hook 9, and the lock pawl 18 is attached to the rolling machine body. It is attached to the tip of the reciprocating rod 17a of the cylinder 17 provided on the side, and can automatically engage with the locking pawl 9a of the hook 9 through its advancement, and in the case of disengagement, it is locked by rotation of the hook 9. This is done by retracting the claw 9a.

According to the combination rolling mill of the present invention, the roll stand 1 is pulled out of the rolling mill, turned 90 degrees at the pulled-out position, and the stand 1 in the turned position is loaded into the rolling mill again, as shown in FIGS. When performing horizontal rolling and vertical rolling as shown in Figure 1, when used as a horizontal rolling mill as shown in Figure 1, the hooks 9 on the brackets 8 of the incorporated roll stand 1 are placed in the horizontal position as shown in Figures 1 and 3. (pin 15 is inserted into pin hole 16a position),
The rotation of the hook 9 in the direction of arrow P is restricted by the pin 15,
By engaging the locking pawl 18 with one of the locking pawls 9a projecting outside the bracket 8, the roll stand 1 is stably and securely held together with the support in the device 4.

Next, when using it as a vertical rolling mill as shown in FIG. 2, from the locked position shown in FIG. When the hook 9 is rotated in the direction of arrow P against the pressing force of the spring 10, when the pin shaft 14 crosses the straight line connecting the pivot shaft 12 and the pin shaft 11, the hook 9 is moved to the third position by the urging force of the spring 10. As shown by the imaginary line 9' in the figure, it is in a vertical position and the lock with the lock claw 18 is released, so the roll stand 1 is pulled out of the rolling mill and the 90
When the roll stand 1 is turned around once and charged into the rolling mill again, and the roll stand 1 is installed in the horizontal rolling position as shown in FIG.
The hook 9, which has changed to the 9' position in the figure, assumes a horizontal position as shown in FIG. 2 by turning the stand 1 90 degrees. It will be in the locked position as shown.

That is, it becomes the rotating hook posture of the present invention.

That is, according to the rotary hook 9 of the present invention, only the necessary locking claws 9a of the hook 9 can be protruded, and unnecessary locking claws 9a can be retracted into the bracket 8, so that the roll stand 1 can be kept stable at all times. In addition, the hooks 9 do not become a nuisance as an obstructive protruding part during construction of the rolling mill, drawing out and loading the stand 1, and so on.

This can be seen from the roll stand 1 as shown in the reference diagram in Figure 4.
A right-angled hook 19 is fixed at one corner via a pin shaft 20, and a pair of locking claws 19a, 1 projecting in the direction perpendicular to the hook 19.
9b, if one claw 19a is for horizontal use and the other claw 19b is for vertical use, when used as a horizontal rolling mill, the other claw 19b part, and when used as a vertical rolling mill, one part In the part of the claw 19a, the hatched parts are unnecessary parts, and the existence of these unnecessary protruding parts is such that the protruding parts get in the way of the rolling mill configuration when handling the roll stand 1 in and out, turning, etc. However, by using the rotatable hook 9 of the present invention, which can be restrained and released by the pin 15, these obstacles are eliminated, resulting in safe and smooth handling and easy rolling mill configuration. This is advantageous in that it supports the roll stand 1 stably and reliably at all times.

[Brief explanation of drawings]

Fig. 1 is a front view of the embodiment of the present invention in a horizontally rolled state, Fig. 2 is a front view of the same in a vertically rolled state, Fig. 3 is a detailed structural view of the main part of the hook, and Fig. 4 is a reference side of the hook structure. It is a diagram. 1... Roll stand, 2, 3... ◆... Rolling 0
-Role, 8... Bracket, 9... Hook, 9a... Locking claw, 10... Pressing rod, 13... Compression Spring, 15...Zen, 1
6a* 16b... Zen insertion hole, 1 end...
・Hook claw.

Claims (1)

[Scope of utility model registration request] In a combination rolling mill comprising a stand supporting a pair of rolling rolls, the roll axis of which is selectively installed in both horizontal and vertical positions, in one corner of the stand that is shared in both positions, A hook having locking claws on both sides is rotatably supported, and a compression spring whose one end is rotatably supported is inserted into the hook, so that a pressing rod is used to constantly apply rotational force to the hook. A combination rolling mill characterized in that it is provided with a bin that restrains the rotation of the hook by the press rod.