JPH1133462A - Steel sheet cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve removing efficiency of a cleaning oil by setting the position of the boundary line of each wringer roll higher than the position of the boundary line of each brush roll at the time of cleaning a steel sheet with the brush roll and a cleaning oil and passing the steel sheet between the wringer rolls to remove the cleaning oil. SOLUTION: In the case of cleaning the steel sheet 8, the steel sheet 8 charged from a transporting port 1 is transferred with a pinch rolls 3, 3' and passed between each brush roll 4, 4'. In such a case, the surface of the steel sheet 8 is cleaned with the cleaning oil discharged from a nozzle 7 and the brush rolls 4, 4'. After that, the steel sheet 8 is introduced between the wringer rolls 5, 5' through a guide roll 6 and in such a case, since the position of the boundary line of each ginger roll 5, 5' is higher than the position of the boundary line of each brush roll, 4, 4' by Δh, the steel sheet 8 is graded upward and the cleaning oil on the surface of the steel sheet 8 flows down toward the brush roll 4, 4' side to be sufficiently removed with the wringer rolls 5, 5'.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel sheet cleaning apparatus for removing foreign matter such as dust adhering to the surface of a steel sheet to be pressed, and more particularly to a shearing machine for cutting a steel sheet having uncoiled coil material before pressing. The present invention relates to a steel sheet cleaning apparatus suitable as a means for cleaning a steel sheet in a line or a blanking line.

[0002]

2. Description of the Related Art A coil material of a thin steel sheet to be subjected to press working is uncoiled at the uppermost stream of the above-mentioned shear line or blanking line, and then carried into a steel sheet cleaning device, and then carried into a curl removing device. You.

[0003] The above-mentioned steel sheet cleaning apparatus has a pair of upper and lower pinch rolls, brush rolls and ringer rolls which are sequentially arranged in the feeding direction of the steel sheet. In this cleaning device, the border of each pinch roll, the border of each brush roll and the border of each ringer roll are located at the same height,
Therefore, the steel plate to be cleaned moves sequentially between the brush rolls and between the ringer rolls in a horizontal posture by the transfer force of the pinch rolls.

The uncoiled steel sheet removes foreign substances such as dust adhering to the surface thereof while passing between the brush rolls. At this time, a cleaning oil is used in combination to enhance the cleaning action.

[0005] The oil used for washing is collected in an oil tank. And this used oil is
After the foreign matter is removed by the filter, the filter is again cleaned.

[0006]

In the above steel sheet cleaning apparatus, since the steel sheet in which the coil material is uncoiled continuously passes, the cleaning oil is constantly applied to the upper surface of the cleaned steel sheet located between the brush roll and the ringer roll. It becomes a state of accumulation.

[0007] The ringer roll is provided for removing the cleaning oil adhering to the surface of the steel plate, that is, for cutting off the oil, but as described above, a large amount of the cleaning oil accumulated on the surface of the steel plate. Is difficult to remove sufficiently with this ringer roll,
Conventionally, the following inconvenience has occurred.

A) Since the cleaning oil is continuously taken out together with the steel sheet, the frequency of replenishment of the cleaning oil increases, which causes an increase in operating costs.

B) The steel sheet carried out of the steel sheet cleaning device is carried into equipment provided on the downstream side of the cleaning device. At this time, the cleaning oil taken out together with the steel sheet is transferred to the downstream equipment. Adhere to. The downstream equipment to which the cleaning oil is attached is very slippery due to the oil, which reduces the efficiency of maintenance work and the like performed in the equipment.

C) The washed steel sheet is cut by a cutting device, then piled up by a piler provided at the most downstream of the line, and then transferred to a storage for press production waiting. Cleaning oil adheres to the steel plates stacked in the storage, respectively, and the adhered oil exudes from between the steel plates due to its own weight and flows out onto the work floor. Then, the spilled oil makes the work floor very slippery, thereby reducing workability on the floor.

D) When press working, especially drawing, on the steel sheets stacked on the storage, more oil than necessary is accumulated between the metal mold and the steel sheet. This is a factor that causes poor quality.

In order to solve the above-mentioned problem, the ringer roll pairs are arranged in multiple stages in the feed direction of the steel sheet.
Although it is conceivable to enhance the action of removing the cleaning oil,
In this case, the cost of the apparatus is increased, and the length of the apparatus in the longitudinal direction, that is, the length of the shear line or the blanking line is increased.

Since the surface of the ringer roll needs to be periodically polished and needs to be replaced, the running cost increases as the number of arrangements increases.

An object of the present invention is to provide a steel sheet cleaning apparatus capable of sufficiently removing the cleaning oil adhering to the surface of a steel sheet without adding a ringer roll in view of such a situation.

[0015]

According to the present invention, a steel plate to be cleaned is transferred between a pair of upper and lower brush rolls, and the steel plate is cleaned by the brush rolls and the cleaning oil. Transfer between the ringer rolls, in the steel plate cleaning device that removes the cleaning oil attached to the steel plate, the position of the boundary line of each ringer roll is higher than the position of the boundary line of each brush roll You have set.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A steel plate cleaning apparatus according to the present invention has a carry-in port 1 and a carry-out port 2 as shown in FIG.
A pair of upper and lower pinch rolls 3, which are sequentially arranged in between
3 ', brush rolls 4, 4' and ringer roll 5,
5 ', brush roll 4, 4' and ringer roll 5,
It has a guide roll 6 disposed between 5 'and a plurality of cleaning oil injection nozzles 7 disposed around each brush roll 4, 4'.

The height of the boundary between the pinch rolls 3 and 3 'and the height of the boundary between the brush rolls 4 and 4' match. Each of the pinch rolls 3 and 3 'can press the peripheral surface thereof against the surface of the steel plate 8, and each of the brush rolls 4 and 4' has a tip of a radially implanted brush (not shown). The parts are arranged so that they can be brought into contact with the surface of the steel plate 8.

On the other hand, the respective ringer rolls 5, 5 'are arranged so that their peripheral surfaces can be brought into contact with the surface of the steel plate 8, and the positions of their boundaries are defined by the respective pinch rolls 3, 5'.
The arrangement height is set to be higher by Δh than the position of the boundary between 3 ′ and each of the brush rolls 4 and 4 ′.

The guide roll 6 includes brush rolls 4 and 4 '.
Is arranged so as to be in contact with the upper surface of the steel plate 8 at the height of the boundary line. The guide roll 6 rotates freely.

The washing oil injection nozzle 7 is located in front of and behind the brush roll 4 and in front of and behind the brush roll 4 ', and is connected to the washing oil supply pipe 9 so as to face the boundary between the brush rolls 4 and 4'. It is attached.

In FIG. 1, the pinch roll 3 and the ringer roll 5 are driven to rotate counterclockwise, and the pinch roll 3 'and the ringer roll 5' are driven to rotate clockwise, respectively. The brush rolls 4 and 4 'are driven to rotate in directions opposite to the directions of the pinch rolls 3 and 3', respectively.

The steel plate cleaning apparatus having the above configuration is used, for example, for cleaning the steel sheet 8 whose coil material is uncoiled.

In the apparatus for cleaning a steel sheet, the steel sheet 8 inserted from the carry-in port 1 is transported rightward in FIG.
Pass between 4 '.

At this time, the surface of the steel plate 8 is cleaned by the cleaning oil discharged from the nozzle 7 and the rotating brush rolls 4 and 4 ', and foreign matters such as dust adhered to the surface are removed.

The cleaned steel plate 8 that has passed between the brush rolls 4 and 4 ′ is introduced between the ringer rolls 5 and 5 ′ serving as oil cutting means via a guide roll 6. 5 'is the position of the brush roll 4,
Since it is higher by Δh than the same position of 4 ′, the steel sheet 8 is provided with an ascending gradient at a portion from the guide roll 6 to the boundary between the ringer rolls 5 and 5 ′.

For this reason, most of the cleaning oil adhering to the surface of the steel plate 8 flows down to the brush rolls 4 and 4 'before the steel plate 8 is introduced between the ringer rolls 5 and 5'. .

As described above, since the above-mentioned gradient prevents the accumulation of the cleaning oil on the surface of the steel plate 8, the steel plate 8 reaching the ringer rolls 5, 5 'is removed by the rolls 5, 5'. Only a small amount of cleaning oil is deposited.

Accordingly, the steel sheet 8 having passed through the ringer rolls 5, 5 'is carried out from the carry-out port 2 with the cleaning oil sufficiently removed, whereby the carry-out of the cleaning oil is suppressed as much as possible. You.

The washing oil used for the washing is as follows:
Drops are collected in a tank (not shown). The recovered oil is filtered by a filter (not shown) and reused.

Here, the reason why the guide roll 6 is provided will be described. If the guide roll 6 is not provided, the brush rolls 4 and 4 'and the ringer rolls 5 and 5' have a height difference Δh.
The washed steel plate 8 having passed through 4 'is immediately transferred obliquely upward.

Therefore, in this case, the contact balance of the brush rolls 4 and 4 'with the steel plate 8 is lost, and there is a possibility that the cleaning action by the brush roll 4 and the cleaning action by the brush roll 4' may be different.

On the other hand, when the guide roll 6 is provided, the steel plate 8 that has passed through the brush rolls 4 and 4 'maintains a horizontal posture up to the position where the guide roll 6 is disposed. On the other hand, the brush rolls 4 and 4 'come into contact with a good balance, and as a result, the imbalance of the cleaning action by each of the bra rolls 4 and 4' is prevented.

The guide roll 6 also has a function as an auxiliary oil cutting means for removing a part of the cleaning oil attached to the upper surface of the steel plate 8 prior to the ringer roll 5.

[0034]

According to the present invention, the taking out of the cleaning oil is suppressed, so that the consumption of the cleaning oil can be reduced and the operating cost can be reduced. Further, since the cleaning oil brought into the downstream equipment together with the steel plate is significantly reduced, it is possible to avoid a situation in which the cleaning oil flows out onto the equipment and the surrounding floor and becomes slippery. The workability of the maintenance work performed in the downstream equipment and the workability of various works performed on the floor surface are improved.

[Brief description of the drawings]

FIG.

[Explanation of symbols]

 Reference Signs List 1 carry-in 2 carry-out 3,3 'pinch roll 4,4' brush roll 5,5 'ringer roll 6 guide roll 7 injection nozzle 8 steel plate 9 cleaning oil supply pipe

Claims (2)

[Claims] 1. A steel sheet to be washed is transferred between a pair of upper and lower brush rolls, and the steel sheet is washed by each of the brush rolls and a cleaning oil, and the washed steel sheet is transferred between a pair of upper and lower ringer rolls. A steel sheet cleaning apparatus configured to remove the cleaning oil attached to the steel sheet, wherein a position of a boundary line of each of the ringer rolls is set higher than a position of a boundary line of each of the brush rolls. Cleaning equipment. 2. A guide roll, which is in contact with an upper surface of the cleaned steel plate, is disposed between each of the brush rolls and each of the ringer rolls, and the brush roll removes the cleaned steel plate from each of the brush rolls. The steel sheet cleaning apparatus according to claim 1, wherein the steel sheet cleaning apparatus is positioned on a boundary line of the steel sheet.