JP2002166342A - Lengthy metal sheet polishing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate production of noticeable stripes on a polishing surface by improving the polishing direction of a polishing means by uniformly attaching an abrasive material on a metal sheet surface on a polishing device to continuously polish a lengthy metal sheet. SOLUTION: This polishing device is furnished with an unwinding roll 1 to continuously unwind the lengthy metal sheet 13, a winding roll 2 to wind up the unwound lengthy metal sheet 13, a flat surface plate 6 to support the unwound lengthy metal sheet 13, a plural number of polishing means 4 furnished with polishing plates to horizontally rotate or to move to rise and fall which are alternately arranged in multiple rows of more than two rows orthogonal with the unwinding direction against an upper part of the flat surface plate 6, an auxiliary belt 7 interposed between the flat surface plate 6 and the wound- out lengthy metal sheet 13 and a lubricant applying means 10 to apply a lubricant between the flat surface plate 6 and the auxiliary belt 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a long metal sheet polishing apparatus for polishing the surface of a long metal sheet used for various applications.

[0002]

2. Description of the Related Art As a conventional polishing apparatus, for example, FIG.
As shown in the figure, an unwinding roll 21 for unwinding a long metal sheet 23, a winding roll 22 for driving and rotating the long metal sheet 23, and a length unwound between the rolls 21 and 22. A roll-shaped polishing means 24 that is driven to rotate about a rotating shaft parallel to the width direction of the long metal sheet 23, and is pressed in opposition to the long metal sheet 23 in parallel with the roll-shaped polishing means 24. The long metal sheet 23 is continuously unwound, and the roll-shaped polishing means 24 is rotated in a direction opposite to the unwinding direction of the long metal sheet 23 while continuously unwinding the long metal sheet 23. The peripheral speed is rotated in the same direction as the unwinding direction at a rotational peripheral speed different from the unwinding speed. And in the same direction, or in opposite directions, there is a continuous polishing apparatus for continuously polished by rotating its unwinding speed the same or at different predetermined peripheral speed.

As shown in FIG. 4, a lower peripheral surface abuts a predetermined length on the surface of a flat long metal sheet 23 that is unwound between an unwind roll 21 and a take-up roll 22. Drive rotation (or free rotation) about a rotation axis parallel to the sheet width direction that guides the sheet 23 in a V-shape.
Backup roll 25 and backup roll 2
5 abuts on the unrolled elongate metal sheet 23 having a shape conforming to the shape of the unwinded elongate metal sheet 2
And a peripheral polishing means 26 which reciprocally slides in a width direction orthogonal to the unwinding (feeding) direction of the third metal sheet 3 while continuously unwinding the long metal sheet 23. There is a continuous polishing apparatus in which the polishing is performed by reciprocating sliding in a direction orthogonal to the unwinding (feeding) direction of the 23.

Further, a long metal sheet to be polished is fixed on a platen, a predetermined area of the sheet is polished, and then the long metal sheet is unwound and sent to be fixed to the platen again. In addition, there is an intermittent polishing apparatus of a feeding batch type in which an unpolished portion of a sheet is polished.

[0005]

In the case of a continuous polishing apparatus comprising the roller-shaped polishing means 24 shown in FIG. 3 and a backup roll 25 for receiving the same, the polishing direction is always the rotation direction of the polishing means 24 and is constant. Therefore, streaks tend to be conspicuously generated. In addition, when the abrasive is used, the polishing surface of the long metal sheet is not flattened, and the abrasive accumulates under the polishing means 24 or the abrasive escapes to a low place around the polishing means 24. Yes.

[0006] Further, a peripheral polishing means 26 which slides in a direction perpendicular to the moving direction of the long metal sheet 23 shown in FIG.
In the case of a continuous polishing apparatus including the backup roll 25 receiving the same, polishing from multiple directions is possible, but the polishing state is insufficient or the streaks are easily generated, and when the polishing agent is used, the polishing is long. Metal sheet 23 and peripheral polishing means 26
There is a drawback that the abrasive supplied between the peripheral polishing means 26 and the polishing agent supplied between the peripheral polishing means 26 is accumulated at a low position.

In the case of an intermittent polishing apparatus of a batch type in which polishing and feeding of the long metal sheet 23 are repeated, the sheet 2 is used.
The polishing surface of No. 3 has a defect that polishing boundaries are formed, the boundaries are not uniform, polishing unevenness is likely to occur, and productivity is poor because sheet feeding is intermittent.

An object of the present invention is to provide a polishing apparatus for continuously polishing a long metal sheet, in which a polishing agent is uniformly applied to the surface of the long metal sheet and the polishing direction of the polishing means is improved, so that the polishing surface is improved. The purpose is to eliminate the occurrence of conspicuous streaks.

[0009]

According to a first aspect of the present invention, there is provided an unwinding roll 1 for continuously unwinding a long metal sheet 3, and a winding-up for winding the unwinded long metal sheet 3. The roll 2, a flat platen 6 that supports the unrolled long metal sheet 3, and two or more rows arranged alternately in a direction perpendicular to the unwinding direction facing above the flat platen 6. A plurality of polishing means 4 provided with a polishing plate which can be rotated and raised and lowered; an auxiliary belt 7 interposed between the flat platen 6 and the unrolled long metal sheet 3; A long metal sheet polishing apparatus comprising a lubricant applying means 10 for applying a lubricant between the auxiliary belt 7 and the auxiliary belt 7.

Next, according to a second aspect of the present invention, in the long metal sheet polishing apparatus according to the first aspect, the auxiliary belt 7 has at least a smooth surface in contact with the flat surface plate 6. This is a long metal sheet polishing apparatus that is a long belt.

Next, according to a third aspect of the present invention, in the long metal sheet polishing apparatus according to the first aspect, the auxiliary belt 7 has an endless surface having at least a contact surface with the flat platen 6. This is a long metal sheet polishing apparatus that is a belt.

Next, according to a fourth aspect of the present invention, in the long metal sheet polishing apparatus according to any one of the first to third aspects, the plurality of polishing means 4 are provided for each row. This is a long metal sheet polishing apparatus that reciprocates in the width direction.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to FIG. 1. In order to prevent the polishing surface of the long metal sheet 3 from being polished, the polishing direction must be changed. It is necessary not to be constant.

The most suitable method is to place the long metal sheet 3 on the flat platen 6 and feed the metal sheet 3 in the feeding direction, while supporting the metal sheet 3 on the rotating shaft 4a perpendicular to the surface of the metal sheet 3 and horizontally. Disc-shaped polishing plate 5 of rotating polishing means 4
(Buff) is brought into contact with the surface of the sheet 3 and rotated.

The polishing direction of the rotating polishing plate 5 changes with the moving movement of the long metal sheet 3 in the feeding direction, so that the polishing surface does not have noticeable streaks.

The number of rows of the buffing by the polishing plate 5 of the polishing means 4 may be more preferably multi-row.

For example, as shown in the top view of FIG.
The polishing plates 5 of the plurality of polishing means 4 are arranged in two or more rows in the width direction orthogonal to the unwinding direction of the long metal sheet 3 and are moved in the arrangement of the polishing plates 5 in each row. The polishing plates 5 in the next row are alternately arranged so as to fill gaps generated in the transport direction.

In order to obtain a uniform polished surface by uniformly applying the abrasive to the polished surface of the metal sheet 3,
Polishing is performed on a flat surface (horizontal surface) platen 6.

For continuous polishing, polishing is performed while moving the long metal sheet 3 on the surface plate 6.

However, if so, the metal sheet 3 and the platen 6
Abrasion occurs on the back surface of the metal sheet 3, which affects the polished state of the surface and makes it impossible to obtain a uniform flat surface. Therefore, a lubricant is required between the metal sheet 3 and the surface plate 16.

However, when a lubricant is applied between the metal sheet 3 and the surface plate 6, the lubricant adheres to the back surface of the long metal sheet 3, so that a step of removing the lubricant from the sheet 3 is required.

In addition, a problem arises in that the lubricant and the abrasive wrap around each other on the front and back of the long metal sheet 3. In order to solve these problems, an auxiliary belt 7 wider than the long metal sheet 3 is interposed between the lubricant and the long metal sheet 3 so that the metal sheet 3 has the same unwinding speed as that of the auxiliary belt 7. Is to move on the surface plate 6.

The auxiliary belt 7 has a smooth surface at least on the surface of the surface plate 6. When the auxiliary belt 7 slides on the flat surface of the upper surface of the surface plate 6, the flat surface of the surface plate 6 has smoothness. A metal or resin belt which is not damaged is suitable.

As the auxiliary belt 7, a method of unwinding and winding by using a long sheet-shaped belt, or a method of repeatedly rotating and using an endless belt can be adopted.

By interposing an auxiliary belt 7 and a lubricant between the long metal sheet 3 and the surface plate 6 to be polished in this way, the surface plate 6 can be an auxiliary belt wider than the long metal sheet 3. 7, the abrasive supplied to the polishing surface of the long metal sheet 3 is blocked by the auxiliary belt 7 and does not adhere to the surface of the platen 6.

Further, since a lubricant intervenes at the relative sliding interface between the auxiliary belt 7 that moves on the surface plate 6 at the same speed as the long metal sheet 3 and the surface plate 6, the lubricant is interposed. The sliding surface of the upper surface of the board 6 and the lower surface of the auxiliary belt 7 has no streaks such as scratches due to sliding, and is supported by the intact upper surface of the auxiliary belt 7, and is unrolled, fed and polished. Sheet 3
A uniform polished surface is obtained on the polished surface, and continuous polishing becomes possible.

[0027]

Embodiments of the present invention will be described with reference to the drawings. 1 and 2 are schematic views showing a long metal sheet polishing apparatus according to the present invention.

FIG. 1A is a side view of an apparatus in which the auxiliary belt 7 is unwound as a long sheet-shaped belt and is moved in a winding manner, and FIG. 1B is a top view thereof. 1 (c) is a front view thereof.

FIG. 2 is a side view of an apparatus of a system in which the auxiliary belt 7 is made to be an endless belt and is repeatedly moved by rotation.

The long metal sheet 3 travels on the platen 6 at a constant unwinding speed from the unwind roll 1 to the take-up roll 2.

Slightly above the polished surface of the long metal sheet 3 on the surface plate 6, it is supported on a rotating shaft 4 a perpendicular to the polished surface of the metal sheet 3, away from the polished surface. Disk-shaped polishing plate 5 of a plurality of polishing means 4 rotating horizontally
(Buffing disk) is waiting.

The plurality of polishing means 4 (polishing plates 5) can be moved up and down by means of elevating means by an appropriate actuator such as an air cylinder so that they can be separated from and brought into contact with the polishing surface of the metal sheet 3. For each row, it is appropriately attached to and supported by a widthwise reciprocating means by an actuator, so that it can reciprocate in the widthwise direction for each row.

When the polishing operation is started, the lowering operation of the polishing means 4 moves the polishing plate 5 (buffing plate) on the horizontal flat surface plate 6 while keeping the horizontal surface of the metal sheet 3 moving continuously. Abrasive (for example, silicon carbide fine powder, alumina fine powder, diamond fine powder, etc.) is supplied to the horizontal polishing surface of the metal sheet 3 while being horizontally rotated while being pressed against the polishing surface of Polish continuously. After the polishing is completed, the polishing means 4 is raised.

An auxiliary belt 7 wider than the long metal sheet 3 is interposed between the long metal sheet 3 and the surface plate 6.

1A to 1C, the auxiliary belt 7 in the form of a long sheet is driven or freely rotated in the direction from the unwinding roll 8 to the take-up roll 9 in the unwinding and feeding direction. The lower nip roll 11,
The guide plate 11 is moved along the flat surface of the platen 6 in synchronization with (same speed as) the unwinding speed of the long metal sheet 3 while being guided.

In FIG. 2, the endless auxiliary belt 7 has its lower end nip rolls 11 and 1 which unwind at both ends and rotate or rotate freely in the front and rear direction in the transport direction.
1 and rotates endlessly in synchronization with the long metal sheet 3 (at the same speed), and moves on the flat surface of the surface plate 6 on the upper belt 7a of the endless auxiliary belt 7.
Will move and send.

On the upper side of the lower nip rolls 11, 11, the upper nip rolls 1 are pressed by opposing each other.
2 and 12 are provided, and the long metal sheet 3 is unwound from the unwinding roll 1 side and wound up on the winding roll 2 side.
And the auxiliary belt 7 interposed on the lower surface thereof are respectively provided with lower and upper nip rolls 11 and 12 (the unwinding upstream side is opposed to the opposing constant-speed driving in-feed rolls 11 and 12,
On the downstream side, rolls 11 and 12 for constant-speed drive outfeed
And may be moved in the unwinding direction at the same speed.

Further, at one end side of the platen 6 on the upstream side of the unwinding and feeding, a lubricant is applied at a position close to the back surface (lower surface) of the auxiliary belt 7 in contact with the upper surface of the platen 6. Means 10 are provided.

The lubricant applying means 10 may be a spray nozzle for applying a liquid lubricant, a roll coater, a bar coater, a die coater or the like for applying a liquid or viscous lubricant. In addition, as a lubricant,
For example, there are liquid petroleum oil, viscous petrolatum, glycerin, and grease.

By the lubricant applying means 10, the back surface (lower surface) of the auxiliary belt 7 on the upstream side of the unwinding transport, or the back surface (lower surface) of the auxiliary belt 7 on the upstream side of the unwinding transport, and the platen 6
The lubricant is applied to the sliding interface between the upper surface of the surface plate 6 and the lower surface of the auxiliary belt 7 so that the flat upper surface of the surface plate 6 is scratched by sliding with the lower surface of the auxiliary belt 7. Avoid the occurrence of

[0041]

According to the long metal sheet polishing apparatus of the present invention, a long metal sheet is placed on a surface plate and moved and moved, and a disk-shaped polishing plate (disk) having a rotation axis perpendicular to the metal sheet surface is formed. With the rotation, the polishing direction due to the rotation of the disk can be continuously changed with the moving and feeding of the long metal sheet, and the long metal sheet is mirror-finished without noticeable streaks as in the one-way polishing operation. Can be finished.

In addition, since the long metal sheet is polished while being moved on the surface plate, a continuous and uniform polished surface can be obtained.
Further, since the continuous polishing method is used as compared with the batch type intermittent polishing method, the processing capacity per time is increased, and the productivity is improved.

Further, since the long metal sheet polishing apparatus of the present invention performs polishing on a horizontal surface on the surface plate, the abrasive supplied to the metal sheet surface to be buffed by the polishing means is in a horizontal state on the surface plate. Is supplied to the surface of the metal sheet, so that it is uniformly adhered and a uniform polished surface is obtained.Therefore, there is an effect that a long metal sheet can be finished to a mirror surface without undulation, for example, a color filter for a liquid crystal display is provided. Various optical color filters and various optical image patterns and resin layers such as pattern image layers, a smooth surface for forming a resin layer such as a transfer pattern layer used for forming by a transfer method on the surface. It is effective for polishing the surface of a long metal sheet for various uses such as the surface polishing of a long metal sheet for transfer that is less affected by expansion and contraction due to environmental conditions such as temperature and humidity.

[Brief description of the drawings]

1A is a side view illustrating an example of an embodiment of a long metal sheet polishing apparatus according to the present invention, FIG. 1B is a top view thereof, and FIG. 1C is a front view thereof.

FIG. 2 is a side view illustrating another example of the embodiment of the long metal sheet polishing apparatus of the present invention.

FIG. 3 is a schematic side view illustrating an example of a conventional long metal sheet polishing apparatus.

FIG. 4 is a schematic side view illustrating another example of a conventional long metal sheet polishing apparatus.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Unwind roll 2 ... Take-up roll 3 ... Long metal sheet 4 ... Polishing means 5 ... Polishing plate (buff disk) 6 ... Flat surface plate 7 ... Auxiliary belt 8 ... Belt unwind roll 9 ... Belt take-up roll 10 ... Lubricant applying means 11 ... Nip roll 12 ... Nip roll 21 ... Unwind roll 22 ... Winding roll 23 ...
Long metal sheet 24: Roll-shaped polishing means 25: Backup roll
26 ... Circumferential polishing means

Claims (4)

[Claims] 1. An unwinding roll 1 for continuously unwinding a long metal sheet 3, a winding roll 2 for winding the unwinded long metal sheet 3, and supporting the unwinded long metal sheet 3. A plurality of polishing means, comprising: a flat platen 6; and a polishing plate which is disposed above and at a position perpendicular to the unwinding direction in a direction perpendicular to the unwinding direction and which is alternately arranged in two or more rows so as to be able to perform horizontal rotation and elevating operation. 4, an auxiliary belt 7 interposed between the flat surface plate 6 and the unrolled long metal sheet 3, and a lubricant application for applying a lubricant between the flat surface plate 6 and the auxiliary belt 7 A long metal sheet polishing apparatus, comprising: means (10). 2. A long metal sheet polishing apparatus according to claim 1, wherein said auxiliary belt is a long belt having a smooth contact surface with at least said flat platen. 3. A long metal sheet polishing apparatus according to claim 1, wherein said auxiliary belt is an endless belt having at least a contact surface with said flat platen. 4. A long metal sheet polishing apparatus according to claim 1, wherein said plurality of polishing means reciprocate in the width direction for each row.