JPH0337764Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of industrial application The present invention relates to a center-to-center adjustment device for a double roller guide.

(B) Prior Art As a means for adjusting the guide roller interval in a double roller guide, as shown in FIG. 23 is rotatably supported on a shaft and is rotatably installed,
Worms 25 with opposite threads screwed onto the worm shaft 24 are engaged with the worm wheel 22, and the support shaft is rotated according to the rotational direction of the worms 25, thereby forming a guide roller pivotally supported by the eccentric shaft portion of the support shaft. This is to adjust the interval of 23.

In addition, as a method of adjusting the center distance of the guide roller by combining a worm and a worm foil,
There is a method shown in No. 55-177908.

(c) Problems to be solved by the invention Although the conventional roller guide shown in FIG. In many cases, it is not possible to secure a space for adjusting the guide because the housing of the rolling mill is located directly above, below, and on the left and right sides of the guide installation position.

For example, when changing the center-to-center adjustment of the roller guide due to a change in rolling size, the following drawbacks occurred.

First, in the center-center adjustment device shown in the fourth figure, since the wormshaft is arranged on the side of the guide, the center-center adjustment must be performed pair by pair.
It is not possible to adjust the center distance of two pairs of guide rollers at the same time.Secondly, since the center distance adjustment must be done from the side of the guide, it is difficult to adjust the center distance of the guide rollers while the guide is fixed to the rest bar. Because work is required in a narrow space inside the rolling mill housing, work efficiency is poor, and it takes time to adjust the center distance of the roller guide when changing the rolling size, which is a factor that reduces the operating efficiency of the rolling equipment. This is what happens.

Furthermore, although the method disclosed in Japanese Utility Model Application No. 55-177908 allows the center spacing of the guide rollers to be adjusted from the rear of the guide, it is not possible to adjust the spacing between the centers of multiple pairs of guide rollers either singly or simultaneously.

From the above, the objectives of the present invention are as follows.

First, the center-to-center adjustment of multiple pairs of guide rollers is
To enable easy adjustment from an open surface at the rear of a guide without having to perform adjustment in a narrow space of a rolling mill housing.

Second, the center distances of the plurality of pairs of guide rollers can be adjusted individually or simultaneously from the rear of the guide.

(d) Means for solving the problem The center-to-center adjustment device for a double roller guide of the present invention has two pairs of support shafts 2 in a guide box 1 that are rotatable by supporting the guide rollers on eccentric shafts. A worm wheel 4 is installed upright and is screwed onto the support shaft 2.
The worms 6 and 7 are meshed with each other through the idle gear 5, and the outer shaft 6a and the inner shaft 7a, on which the worms 6 and 7 are screwed, are coaxially aligned. The inner shaft 7 of the worm 7 is connected to the inner cylinder of a cylindrical outer shaft 6a which is arranged as a double shaft and rotatably supported by a pedestal 8 on the guide box 1 through a bush (not shown).
a is rotatably inserted through the inner shaft 7a.
is provided with a lock nut 10.

(E) Function: Individual center-to-center adjustment of the guide roller due to rolling size change is achieved by rotating the outer shaft 6a and inner shaft 7a, which mesh with the worms 6 and 7 according to the direction of rotation. A worm wheel 4 screwed onto the support shaft 2 is rotated via an idle gear 5, and the width between the centers of the guide rollers 3 is adjusted.

When adjusting the center distances of two pairs of guide rollers at the same time, rotate the lock nut 10 provided on the inner shaft 7a to tighten the outer shaft 6a and inner shaft 7a, and then tighten the outer shaft 6a or the inner shaft 7a. By rotating, the worms 6 and 7 are rotated at the same time, and it is possible to adjust the centers of the two pairs of guide rollers at the same time.

With the above configuration, individual and simultaneous center-to-center adjustment of the guide rollers is possible even when the guide is placed inside the rolling mill housing and the upper, lower, left, and right sides of the guide are close to the rolling mill housing. This can be easily done from the rear.

(f) Example An example of the present invention will be described below with reference to FIGS. 1 to 3.

Two pairs of support shafts 2, which are eccentric shafts, are rotatably erected on the guide box 1, and a guide roller 3 is rotatably supported on the support shafts 2. A worm wheel 4 is screwed onto the support shaft 2, and worms 6 and 7 are meshed with the worm wheel 4 via an idle gear 5.

The worm 6 has a cylindrical shape, and an outer shaft 6a, which also has a cylindrical shape, is rotatably supported by the guide box 1 via a pedestal 8. Inner shaft 7 to which worm 7 is screwed
A has one end rotatably supported on the guide box 1 by a pedestal 9, and the other end is inserted into a bush (not shown) provided in the inner cylinder of the cylindrical outer shaft 6a. Since the outer shaft 6a and the inner shaft 7a are movably supported, the outer shaft 6a and the inner shaft 7a are rotatably supported so as to form double axes on the same axis.

When individually adjusting the center distance between the two pairs of guide rollers, the outer shaft 6a and the inner shaft 7a are each rotated independently, and the worms 6 and 7 are rotated in accordance with the direction of rotation. By rotating the worm wheel 4 via the idle gear 5 that meshes with the worms 6 and 7, the center-to-center dimension of the guide roller 3 supported by the support shaft 2 is independently adjusted.

In addition, when adjusting the center distances of two pairs of guide rollers at the same time, tighten the lock nut 10 provided on the inner shaft 7a to fix the outer shaft 6a and the inner shaft 7a together, and then tighten the outer shaft 6a. Alternatively, when the inner shaft 6a is rotated, the worms 6 and 7 simultaneously rotate the two pairs of worm wheels 4 via the idle gear 5 depending on the direction of rotation, so that the width between the centers of the two pairs of guide rollers can be adjusted. adjusted simultaneously.

R is a rolling roll.

(g) Effects of the invention According to the invention, for example, when adjusting the guide roller center distance of a roller guide fixed in a narrow guide installation space in a triple roll rolling mill housing, the work can be done by entering the rolling mill housing. Since the center-to-center dimension of multiple pairs of guide rollers can be adjusted individually and simultaneously from the rear of the roller guide, which is easy to work with, the center-to-center dimensions of multiple pairs of guide rollers can be adjusted independently and simultaneously from the rear of the roller guide, which is easy to work with. It is possible to change the size quickly, shorten the down time of the rolling equipment, and improve the operating efficiency of the factory equipment.

[Brief explanation of the drawing]

Figure 1 is a side view showing one embodiment of the present invention;
The figure is a plan view of figure 1, figure 3 is a back view of figure 1,
FIG. 4 is a plan view showing a conventional example. R is a rolling roll, 1 is a guide box, 2 is a support shaft, 3 is a guide roller, 4 is a worm wheel,
6 is a worm, 6a is an outer shaft, 7 is a worm, 7a is an inner shaft, and 10 is a lock nut.

Claims (1)

[Scope of utility model registration request] A guide box has multiple pairs of guide rollers, each guide roller is rotatably supported, and a support shaft with a worm foil on the top is installed, and a cylindrical shape is rotatably supported on the guide box. The inner shaft is inserted into the inner cylinder side of the outer shaft and is rotatably fitted, and a worm is screwed to one end of the outer shaft and the inner shaft, and the outer shaft and the inner shaft are locked together. The double roller is rotatable independently and simultaneously by the shaft, and a worm screwed on the shaft is engaged with the pair of worm wheels, thereby making it possible to adjust multiple pairs of guide rollers independently and simultaneously. Roller guide center adjustment device.