JPH0544041Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an apparatus for polishing the surface of a roller installed on a roller table for conveying rolled material.

BACKGROUND ART A roller table is generally used as a means for conveying rolled material in rolling equipment. Since the rollers of such a roller table support a large weight of rolled material and rotate to convey it, scratches and foreign matter are likely to stick to the roller surface. In addition, when conveying high-temperature rolled materials, the thermal effect is large, promoting rust and the sticking of foreign matter. It is often required to clean and polish the roller surface.

Conventionally, a worker manually cleans and polishes the roller surface by pressing sandpaper or cloth against the surface of the rotating roller and moving it laterally.

Another method proposed is to use a polishing device. As a polishing apparatus of this type that has been proposed so far, for example, the apparatus described in Japanese Patent Application Laid-Open No. 131991/1983 is known. To briefly explain the basic structure of this device, a polisher is assigned to each roller part on both sides of the roller, and while the roller is rotating, both polishers are moved in the roller axis direction. The structure is such that the surface of the roller part is cleaned and polished with a corresponding polisher.

This polishing device divided the roller into two parts in the longitudinal direction.
The reason why polishers are provided for each of the two roller portions is that these rollers are generally so-called hourglass-shaped rollers with an outer diameter larger at both ends than at the center. Therefore, both polishers are not arranged to be driven back and forth on the same straight line, but each polisher is moved parallel to the ridgeline of its respective roller section. The possible carrying common frame is bent into a shallow angled "V" shape. Further, each polisher has an arcuate polishing surface corresponding to the curvature of the roller portion at a certain position, and is formed to have a relatively narrow width in the axial direction of the roller.

Problems to be Solved by the Present Invention The method of cleaning and polishing by having workers directly handle the abrasive web requires a great deal of time and labor, is inefficient, and is dangerous. Moreover, the downtime of the equipment becomes longer, and even an experienced person cannot avoid polishing unevenness.

The polishing device described above cannot be applied to rollers with different taper angles in the shape of an hourglass unless the bending angle of the frame is made adjustable. As a practical matter, it is impossible to obtain versatility for rollers having different angles due to the structure of the drive system of the polisher, etc., because the apparatus becomes complicated. Furthermore, the frame, the movable attachment structure of the polisher, the drive system of the polisher, etc. make the apparatus larger and the cost inevitably increases.
Furthermore, as the polisher's arcuate polishing surface differs from the curvature of the roller surface as it moves, this device is designed to follow the polishing surface via a flexible member, but The contact pressure with the roller surface changes accordingly. This change is disadvantageous for uniform polishing. The surface of the roller does not always have deposits, etc. evenly distributed, and even if there is a particular area that you want to polish, it is not possible to skip to that location, so you are forced to polish parts that are not needed in the middle. I don't get it. This itself also becomes a cause of inhibiting uniform polishing on the roller surface. In any case, this device cannot be expected to have a self-adjusting function, for example, by sufficiently polishing areas that are protruding due to deposits, while refraining from polishing areas that do not require polishing. Therefore, even, efficient, and satisfactory polishing cannot be carried out unless the operator is on hand to supervise the process.

Solution according to the present invention The present invention provides a roller polishing device that enables highly efficient work with an extremely simple structure and has a self-adjusting function for uniform polishing. This eliminates the drawbacks of the conventional technology.

The polishing device according to the present invention has a pair of flat plates having a width that is adapted to the tapered roller portions on each side of the drum-shaped roller and a length that is placed on the plurality of rollers. and a hinge that connects the pair of polishing bodies so that the angle can be changed to each other so as to follow the taper angle of the drum-shaped roller, and each of the polishing bodies has a metal plate and a hinge. It is characterized by comprising an elastic material attached to almost the entire lower surface, and an abrasive web material such as sandpaper attached to the lower surface of the elastic material.

Function The polishing device of the present invention is used by placing it on a roller table and moving the roller in a direction opposite to the conveyance direction by means of traction or the like while rotating the roller. In addition, as described above, this polishing device has a pair of flat polishing members connected by a hinge so that the angle can be changed freely, so that a plurality of drums arranged in parallel at a distance from each other on the roller table can be used. When placed on the shaping roller, the hinge angle is self-adjusted so that it is closely supported on the ridgeline of the roller.
This is done by its own weight, and if the roller is placed on another roller table with a different taper angle, the hinge angle will be self-adjusted to match the taper angle. In this way, the polishing device according to the present invention provides versatility that can be applied to various roller tables without being limited to the taper angle of the roller, and also allows the polishing device itself to obtain the best condition for the difference in taper angle. It has the ability to self-regulate.

Further, since the polishing body is closely supported by the ridgeline of the roller portion over almost the entire length, uniform polishing can be achieved in the axial direction of the roller. The polishing body itself is constructed as a rigid structure, but the elastic material provided on its lower surface
It sufficiently absorbs errors in the parallelism of the rollers to ensure close contact with the ridgeline over the entire length of the rollers.Furthermore, since the polishing body is constructed in a flat plate shape, it is possible to prevent the protruding area of deposits, for example. On the other hand, the load is large due to the weight of the polishing body, but on the other hand, the load is smaller on the areas on both sides of this area that do not require as much polishing.
If polishing is performed strongly on the area where polishing is desired, and that area is polished and smoothed, the load that was on that area will be applied to the entire area that does not require polishing. This reduces the amount of polishing in areas that do not require polishing, and also provides the function of self-selectivity of the polishing area.

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a preferred polishing apparatus according to the present invention. This polishing apparatus has a pair of polishing members indicated by symbols A and B. These polishing bodies A and B have the same structure and are connected to each other by an appropriate number of hinges 1 so that the angle can be changed.

Each of the polishing bodies A and B has a rigid structural part 2 assembled into a frame, and a steel plate 3 is attached to the lower surface of this structural part 2.
These iron plates 3, to which are fixed, each have a width approximately equal to the length of the tapered left and right roller portions 4a, 4b of the drum-shaped roller 4, and are arranged in parallel. The length is such that it can be placed on the roller 4. iron plate 3
The thickness of the material itself has been selected to provide sufficient rigidity. Further, the front and rear edges of the iron plate 3 are curved upward when viewed in the conveying direction of the roller table, so that they do not hit the rollers 4 when the polishing device is moved.

The lower surface of the iron plate 3 is covered with an elastic material 5. Here, both front and rear ends of the elastic member 5 are wound around the front and rear edges of the iron plate 3, and fixed on the upper surface thereof with a suitable fixing bar 6. Of course, this fixing method may be any suitable method.

Further, a pair of stands 7 are fixed to the upper surface of the structure 2, and a sandpaper roll 8 is rotatably supported on the stands 7. The web-shaped sandpaper 9 let out from the sandpaper roll 8 is rotated around the front edge of the iron plate 3 so as to be aligned with the lower surface of the elastic material 5, and further rotated around the rear edge to come over the structure 2 again. It is wound in such a manner that it is fixed onto the structure 2 by fixing bars 10 on the feeding side and the distal end side. Of course, this fixing may be done by any suitable method.

A polishing device with such a configuration is placed on a roll table to be polished, the rollers are driven to rotate, and the mooring wire is paid out little by little so that the polishing device itself is moved slightly by the rotation of the rollers, or It is used by winding up the wire with a winch and pulling it in the opposite direction to the conveying direction (see Fig. 3). In this use, as shown in FIG. 2, the hinge 1 is attached to both the polishing devices A,
Self-adjust the angle formed by B. Therefore, the present invention can be applied without restriction to roller tables having different taper angles of the hourglass-shaped rollers.

In addition, while polishing almost the entire length of each roller 4 at the same time, for example, if the roller surface has deposits and protrudes, the weight of the polishing body of this protruding portion acts greatly to perform polishing, but if there are any abnormalities, Adjacent areas that are not present are polished with a small load, so it also has a self-selection function that automatically selects the polishing area.

The embodiment shown in FIG. 3 has a configuration in which a wiping means 20 is further connected to the polishing device described above. Here, a main body 22 having a wiping mat 21 at its lower part whose front and rear edges are similarly curved upward is connected to the stand 7. It is preferable that this main body 22 is provided with an oil reservoir (not shown) inside, for example, so that the wiping mat 21 is impregnated with oil.

Effects of the Invention The roller polishing device for a roller table according to the present invention has an extremely simple structure, can be manufactured at low cost, and is extremely simple and easy to use. In addition to the self-adjustment function according to the roller's taper angle, it also has a self-selection function that applies a heavy load to areas with deposits that need to be polished in particular, making polishing work extremely efficient. This eliminates the need for the operator to recognize the polishing area and control the device to carefully polish that area. In other words, it becomes possible to perform the process fully automatically. It is clear that such a highly versatile device with a simple structure and high polishing efficiency would have a great industrial effect.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing the overall structure of a roller polishing device according to an embodiment of the present invention. FIG. 2 is an end view of the roller polishing device shown in FIG. 1. FIG. 3 is an elevational view showing another embodiment of the roller polishing state. A, B... Polishing body, 1... Hinge, 2... Frame structure part, 3... Iron plate, 4... Roller, 5
...Elastic material, 6...Fixed bar, 7...Stand,
8... Sandpaper roll, 9... Sandpaper, 10... Fixed bar, 20... Wiping means, 21... Mat, 22... Main body.

Claims (1)

[Scope of utility model registration request] A pair of flat abrasive members having a width that is adapted to the tapered roller portion on each side of the drum-shaped roller and a length that is placed on the plurality of rollers, and a drum-shaped roller. and a hinge that connects the pair of polishing bodies so that the angle can be changed to each other so as to follow the taper angle in What is claimed is: 1. A roller polishing device for a roller table, characterized in that the roller table comprises a polishing web material such as sandpaper attached to the lower surface of the elastic material.