JP2597459Y2 - Meandering prevention device for take-up - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a meandering preventing device for take-up, and more particularly to a meandering preventing device for a belt in a take-up pulley of a take-up device such as a belt conveyor.

[0002]

2. Description of the Related Art A conventional weight take-up device for a belt has a structure as shown in FIGS. 6 and 7, for example. 6 and 7, 1 is a belt, 2 is a take-up pulley, and 3 is a weight box. The take-up pulley 2 is a pulley with a crown to prevent the belt 1 from meandering.

[0003]

However, as described above, in the prior art, the take-up pulley 2 is provided with a crown. However, since the take-up pulley 2 is provided with a crown, the processing cost is high, and recently, the belt is used. Since the speed is so high that abnormal noise is generated, no meandering prevention measures have been taken in the take-up pulley portion.

[0004] For this reason, as shown in FIG. 8, the belt 1 is likely to be shifted, and when the belt 1 is shifted, the take-up frame 5 is inclined with respect to the guide 4, and Via weight box 3
And there is a problem that a long time is wasted in correcting the inclination.

The present invention is intended to solve the above problems. That is, the present invention is inexpensive,
It is an object of the present invention to provide a take-up meandering prevention device capable of preventing the belt from being shifted more than an allowable range in a take-up pulley portion and preventing meandering.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to a position near a take-up pulley for taking up a running belt, which is close to one edge and the other edge of the belt. Guide rollers are provided separately to prevent the belt from shifting.

[0007]

According to the present invention, guide rollers are provided separately at positions near one edge side and the other edge side of the belt near the take-up pulley for taking up the running belt. Deviation of the belt in the up-and-down pulley portion in both the left and right directions is prevented, and thus the belt is prevented from meandering.

[0008]

FIG. 1 is a front view showing a first embodiment of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a plan view thereof. In FIG. 1, 1 is a belt, 2 is a straight cylindrical take-up pulley without a crown, 3 is a weight box, 4 is a guide, 5 is a take-up frame, 6 is a bend pulley, and 7 is a guide roller described later. .

That is, the guide roller 7 is attached to the take-up frame 5 so as to prevent the belt 1 from being offset, and is located at a position close to each of the one edge 1a and the other edge 1b of the belt 1, and Take-up pulley 2
It is provided near.

In addition, the rotation center shaft 7a of the guide roller 7
Are perpendicular to the running direction of the belt 1. Accordingly, when the belt 1 shifts, the belt 1 hits the guide roller 7 on the shift side. For example, as shown in FIG. 4, when the belt 1 shifts to the left side, the other edge of the belt 1 moves. 1b hits the guide roller 7 on the left side, and further prevents the belt 1 from shifting. Conversely, when the belt 1 is shifted to the right, the one edge side 1a of the belt 1 contacts the guide roller 7 on the right, and the belt 1 is prevented from shifting further. For this reason, the operation can be performed within the allowable range of the deviation of the belt 1.

Even when the take-up pulley 2 moves, the guide roller 7 is always provided in synchronization with the take-up frame 5 because the guide roller 7 is provided on the take-up frame 5.

FIG. 5 shows a second embodiment of the present invention.
In the second embodiment, the take-up pulley 2 is attached to a horizontally moving trolley 8, which is pulled to the right by a wire rope 9. A guide roller 7 is provided on the carriage 8 at a position close to one edge side and the other edge side of the belt 1.

Also in the case of the second embodiment, the operation can be performed within the allowable range of the deviation of the belt 1 as in the first embodiment.

In the above embodiment, the guide roller 7
Is manufactured for this purpose. As another embodiment of the present invention, a known V-shaped roller (FIG. 9) used as a return roller for supporting a lower belt or an upper roller is used. A roller having the same shape as a known inverted V-shaped roller (FIG. 10) used as a return roller for supporting a belt may be used as the guide roller. FIGS. 9 and 10 are side views of the belt return portion similar to FIG. 5, and FIG. 9B is a partial cross-sectional view of each AA. As shown in these figures, as a guide roller of a belt conveyor, a V-type roller in which two rollers 7a are arranged in a VV shape is provided on a lower belt, or a reverse roller in which two rollers 7b are arranged in an inverted V shape. It is also possible to use a V-shaped roller for the upper belt. In this case, the roller 7
a and 7b are attached to the take-up frame 5 in the same manner as in the above embodiment, and when the belt 1 is shifted to the left, for example, the balance of the belt pressing force of the left and right rollers is lost, and Since the returning force acts, the meandering adjustment is performed.

[0015]

[Effects of the Invention] As described above, according to the present invention,
Guide rollers are provided separately in the vicinity of the take-up pulley for taking up the running belt and near one edge side and the other edge side of the belt, respectively. Deviation is prevented in either direction, thus preventing the belt from meandering. In addition, the structure is simple, the installation cost is low, and no noise is generated.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a front view showing a state in which the belt of FIG. 1 is prevented from being biased;

FIG. 5 is a side view showing a second embodiment of the present invention.

FIG. 6 is a front view showing an example of a conventional technique.

FIG. 7 is a side view of the same.

FIG. 8 is a front view showing a state in which the belt of the apparatus of FIG. 6 is offset.

FIG. 9 is an explanatory diagram of a V-shaped roller.

FIG. 10 is an explanatory diagram of an inverted V-shaped roller.

[Explanation of symbols]

 Reference Signs List 1 belt 1a one edge side of belt 1b other edge side of belt 2 take-up pulley 5 take-up frame 7 guide roller 7a center axis of rotation of guide roller

Claims (4)

(57) [Scope of request for utility model registration] 1. A guide roller is provided near a take-up pulley for taking up a running belt, at a position close to one edge side and another edge side of the belt, and a guide roller for preventing a deviation of the belt. A meandering prevention device for take-up, comprising: 2. The meandering prevention device for take-up according to claim 1, wherein the guide roller is mounted on a take-up frame supporting the take-up pulley. 3. The take-up meandering prevention device according to claim 1, wherein the rotation center axis of the guide roller is perpendicular to the running direction of the belt. 4. A belt supporting V-shaped guide roller.
3. The meandering prevention device for take-up according to claim 1, wherein a roller having the same shape as the mold return roller or the inverted V-shaped return roller is used.