JPH0256962B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a belt-type grinding device for rolling rolls, and in particular, scale of a rolled material generated during rolling adheres to a guide member, making the grinding machine unable to run. It relates to something that is designed to prevent something from happening.

[Technical background of the invention and its problems] Generally, as rolling progresses, the outer peripheral surface of the roll in a rolling mill that comes into contact with the material to be rolled wears and becomes rough, especially at the edges of the material to be rolled. The outer surface of the roll needs to be ground periodically because local wear is significant.

However, in the past, the rolling rolls were removed from the rolling mill body each time and the grinding work was performed off-line, which took a lot of effort and time. In addition, since the above grinding process tends to cause clogging of the rotating grindstone, dressing (removal of clogging) is necessary.
There was a problem in that grinding of the rolling rolls required a long time.

Therefore, in order to solve the problems of the prior art, the present applicant proposed a grinding device as shown in FIG. 1 (Japanese Patent Application No. 58-29230). As shown in the figure, this device has a grinding machine main body 2 which is supported by guide members 6, 6 so as to be movable in parallel in proximity to a rolling roll 1, and a feed reel 4 and a take-up reel 5 of a grinding belt 3 are attached thereto. The folded portion 3a of the grinding belt 3, which is stretched around the reels 4 and 5, is brought into sliding contact with the outer peripheral surface of the mill roll 1, which is the object to be ground. Thereby, the grinding machine main body 2 guided by the guide members 6, 6 performs grinding work online.

However, scale is always scattered from the rolled material 7 to the surroundings, and this scattered scale adheres to the guide member 6 that guides the grinding machine main body 2, hindering the smooth running of the grinding machine main body 2, and finally The drawback was that it became impossible to drive.

In order to eliminate these drawbacks, the grinding machine body 2
It is conceivable to provide a bellows to cover the guide members 6, 6 in the direction of movement, but since the housing of the roll 1 is structurally close to the end of the shaft of the roll 1, it is not sufficient to provide a bellows. If a bellows is intentionally provided, the bellows will restrict the travel distance of the grinding machine main body 2, and even if scale adhesion can be prevented, it cannot be put to practical use.

[Object of the Invention] The present invention has been made in view of the above conventional problems, and its purpose is to prevent the scale of the rolled material generated during rolling from adhering to the guide member without being restricted by space. An object of the present invention is to provide a belt-type grinding device for rolls that can effectively prevent a grinding machine main body from becoming unable to travel.

[Summary of the Invention] The configuration of the present invention in accordance with the above object includes: a grinding machine main body that grinds by sliding a grinding belt on the outer circumferential surface of a rolling roll; and a guide member that guides the main body so as to be movable parallel to the rolling roll. In the belt-type grinding device for rolling rolls, a cooling device is provided at the front and back of the grinding machine body in the moving direction, and is used to cool the rolling roll in order to remove scale that is scattered during rolling and adheres to the guide member. A spray nozzle that introduces water and sprays it onto the outer circumferential surface of the guide member, or is provided before and after the moving direction of the grinding machine body, cools the rolling roll in order to remove scale that is scattered during rolling and adheres to the guide member. The guide member is characterized in that it is equipped with a device that introduces cooling water used in the guide member and rotates and polishes the outer circumferential surface of the guide member using this as a power source. This prevents scale from adhering to the guide member without restricting the moving distance, and prevents the grinding machine from being obstructed or unable to run.

[Embodiments of the Invention] A preferred embodiment of the belt-type grinding device for rolling rolls according to the present invention will be described below with reference to FIGS. 2 to 4.

As shown in FIGS. 2 and 3, spray nozzles 9 for spraying a fluid 8 such as cooling water onto the outer surface of the guide member 6 are provided on the fixed side and the movable side.

The fixed side injection nozzle 9a is disposed on a frame 11 installed between the housings 10, 10 of the rolling roll 1 in parallel with the guide members 6, 6 so as not to interfere with the running of the grinding machine main body 2. The fixed injection nozzles 9a disposed on the frame 11 are disposed at equal intervals over the entire longitudinal length of the frame 11 so as to face the outer peripheral surfaces of the guide members 6, 6 and spray fluid thereon. , attached to fluid piping 12 leading to a fluid source (not shown). One or more nozzle rows arranged at equal intervals are provided for each guide member 6.

The movable side injection nozzle 9b is disposed in annular pipes 13, 13 provided on both sides of the grinding machine main body 2 in the running direction to surround the outer peripheral surface of the guide member 6, as shown in FIG. The movable injection nozzle 9b disposed on the annular pipes 13, 13 faces the outer circumferential surface of the guide member 6 slightly outward in the axial direction and sprays fluid thereon in the circumferential direction of the annular pipe 13. They are arranged at equal intervals along the entire length. In this case, the grinding machine body 2 should be
An annular pipe 3 and a nozzle 9b are provided on both sides of the grinding machine body 2 in order to fill the housing 10 completely.
needs to be as thin as possible in the axial direction.

Now, in the above configuration, when not grinding,
Every time the material to be rolled 7 is rolled by the rolling rolls 1, scales scatter from the material to be rolled 7 in all directions and adhere to the guide member 6 that guides the grinding machine body 2, but the scales are fixed on the frame 11. The fluid 8 is constantly sprayed from the side injection nozzle 9a onto the outer peripheral surface of the guide member 6 over its entire length. By spraying the fluid 8, the scale that is about to adhere to the guide member 6 is washed away, and the scale that has adhered to the guide member 6 is also removed. Therefore, the guide member 6
Prevents scale adhesion.

During grinding, in addition to the fluid ejected from the fixed side injection nozzle 9a, the fluid 8 is also sprayed onto the outer peripheral surface of the guide member 6 from the movable side injection nozzles 9b provided on both sides of the grinding machine main body 2. Since the movable injection nozzle 9b moves integrally with the grinding machine main body 2, the fluid 8 is sprayed over the entire length of the guide member 6. By this spraying, scale that is about to adhere to or has adhered to the guide member 6 is reliably removed. Therefore, scale adhesion to the guide member 6 can be reliably prevented.

In this way, according to the above embodiment, the injection nozzles 9a and 9b are provided in locations where there is no space restriction or where the restriction is loose, so that the grinding machine main body 2 itself is not restricted in its running, and , it is possible to effectively prevent running obstruction or inability to run due to scale adhesion. In addition, in particular, if cooling water is used as the fluid 8 injected from the injection nozzle 9, the abundant cooling water used for the rolled material 7, the rolling roll 1, etc. can be used as is, simplifying the equipment and saving energy. You can also try to make it more effective.

In the above embodiment, the fixed injection nozzle 9a and the movable injection nozzle 9b are used in parallel, but only one of them may be used. However, when the movable side injection nozzle 9b is used alone, it is necessary to always move the grinding machine main body 2 back and forth regardless of whether it is being ground or being ground.

5 and 6 show modifications of the embodiment shown in FIG. 4, and the difference from FIG. 4 is that the fluid 8 injected from the movable injection nozzle 9c is not directly sprayed onto the guide member 6. , turbine blade 15
This is because the scale was indirectly removed by spraying the scale on the turbine rotor 16 and rotating the turbine rotor 16. That is, turbine rotors 16 loosely fitted around the outer periphery of the guide member 6 are disposed on both sides of the grinding machine main body 2 in the running direction.
This turbine rotor 16 has a sliding contact material 17 such as an oil-based cloth or felt that is in sliding contact with the outer peripheral surface of the guide member 6 on its inner periphery, and rotates the turbine rotor 16 by receiving the jet fluid from the injection nozzle 9c on the outer periphery. A large number of turbine blades 15 are provided and housed in a casing 17 that is integrally attached to the grinding machine main body 2. This casing 17 and one side of the axially outer side of the turbine rotor 16 are connected to a sealing material 18.
The fluid a that has collided with the turbine blade 15 is detoured from the other side of the turbine rotor 16, flows axially outward through the sliding surface, and is discharged.

Therefore, compared to a method in which scale is removed by directly spraying fluid from the movable injection nozzle 9b onto the guide member 6 at equal intervals, the entire outer peripheral surface of the guide member 6 is polished while the sliding contact member 17 rotates. This allows for more reliable scale removal. Moreover, since the scale removed from the surface of the guide member 6 is discharged axially outward together with the detouring fluid a, there is an advantage that the rotation of the turbine rotor 16 is not inhibited. In this embodiment, [Effects of the Invention] In summary, according to the present invention, the following excellent effects are exhibited.

By providing the injection nozzle, it is possible to effectively prevent the scale of the rolled material generated during rolling from adhering to the guide member, ensuring smooth running of the grinding machine body, and making continuous grinding possible.

Since the injection nozzle can be provided without being restricted by space, the movement of the grinding machine body is not hindered by providing the injection nozzle.

Since a device is provided that rotates and polishes the outer peripheral surface of the guide member, the entire outer peripheral surface of the guide member is polished while rotating, making it possible to remove scale more reliably.

The power source of the device that rotates and cleans the jet fluid of the jet nozzle or the outer peripheral surface of the guide member.
Since cooling water is used to cool the rolling rolls,
It is possible to simplify the device and save energy.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of the previously proposed belt-type grinding device for rolls, Fig. 2 is a side sectional view showing an embodiment of the present invention, Fig. 3 is a plan view of the same, and Fig. 4 is the same diagram. FIG. 5 is an enlarged side sectional view of a main part showing another embodiment, and FIG. 6 is an enlarged plan sectional view of the same. In addition, in the figure, 1 is a rolling roll, 2 is a grinding machine body,
3 is a grinding belt, 6 is a guide member, 8 is a fluid, 9
1 is an injection nozzle, and 16 is a turbine rotor, which is an example of a device for cleaning while rotating.

Claims (1)

[Scope of Claims] 1. A belt-type milling roll comprising: a grinding machine body that grinds by sliding a grinding belt on the outer peripheral surface of the mill roll; and a guide member that guides the body so as to be movable parallel to the mill roll. In the grinding device, cooling water is provided before and after the moving direction of the grinding machine main body, and cooling water used for cooling the rolling roll is introduced to remove scale that is scattered during rolling and adheres to the guide member. 1. A belt-type grinding device for rolling rolls, comprising a spray nozzle that sprays spray onto the outer circumferential surface of a member. 2. In a belt-type grinding device for a roll roll, which is equipped with a grinder main body that grinds by sliding a grinding belt on the outer circumferential surface of the roll, and a guide member that guides the main body so as to be able to move in parallel to the roll, the above-mentioned grinding Cooling water is installed at the front and rear of the machine body in the direction of movement, and is used to cool the rolling rolls in order to remove scale that is scattered during rolling and adheres to the guide members. 1. A belt-type grinding device for rolling rolls, comprising a device for grinding while rotating a surface.