JPH0737357U - Metal roll surface processing equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a metal roll surface processing device that is less expensive than conventional ones, occupies less space than before, and can form a coating film of uniform thickness on the surface of metal rolls. To do. A structure 20 for reciprocating a resin coating nozzle 12 in the width direction of a metal roll 14 in a metal roll surface processing apparatus 10, and a two-fluid spray nozzle row 16 for etching.
Is provided with a mechanism 30 for moving the metal roll 14 in the width direction of the metal roll 14. When the resin is applied, the driving force of the nozzle reciprocating motor 42 is transmitted to the screw screw 32 via the gear box,
Screw screw 32 on the side opposite to the nozzle reciprocating motor 42
It is transmitted to the power transmission pulley 34 by a detachable joint 56 provided at the end of the.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a metal roll surface processing apparatus for forming a myriad of accurate uneven patterns on a metal roll surface.

[0002]

[Prior art]

 A metal that is applied with a thin film of acid-resistant resin on the surface of a metal roll for rolling, and then the YAG laser evaporates the acid-resistant resin film so that it has a predetermined pattern, followed by etching with a corrosive liquid. Roll surface processing technology is known. Among the series of techniques, as a technique for applying an acid-resistant resin to the surface of a metal roll, a direct coating method using a dipping method or a roll coater method and a coating method using a spray are known. In addition to these techniques, as disclosed in Japanese Utility Model Publication No. 58-29471, as a technique for coating a resin on the surface of a cylindrical object, the cylindrical object is erected vertically and a special A technique of providing a container and moving the container from the bottom to the top is known.

[0003]

[Problems to be solved by the device]

 In the direct coating method such as the dipping method or the roll coater method, a "joint portion" is generated when the coating is finished, and the resin thickness becomes uneven. Even in the spray coating method, it is very difficult to achieve the desired resin film thickness on the entire surface of the roll, and it is necessary to meet appropriate conditions such as the spray injection state, roll rotation speed, and spray movement speed. Equipment is needed. In the method disclosed in Japanese Utility Model Publication No. 58-29471, when the target material is a heavy material such as a rolling roll, a large-scale dedicated device is required even if it is erected vertically.

Therefore, conventionally, the surface of the metal roll is processed by using an acid-resistant resin coating device, a laser device, and an etching treatment device which are separately prepared. Therefore, there are problems that at least three devices are required, the manufacturing cost of the devices is high, and the devices occupy a large space. In view of the above circumstances, the present invention provides a metal roll surface processing apparatus which is lower in cost than conventional ones, occupies less space than conventional ones, and can form a coating film having a uniform thickness on a metal roll surface. The purpose is to provide.

[0005]

[Means for Solving the Problems]

 MEANS TO SOLVE THE PROBLEM The metal roll surface processing apparatus of this invention for achieving the said objective is a base, the rotation holding mechanism which hold | maintains and rotates a metal roll on the upper surface of this base, and the side of said metal roll is said metal roll. A first reciprocating motion table that reciprocates in the width direction, a two-fluid spray nozzle row for etching, which is detachably attached to the first reciprocating motion table and is located above the metal roll; A guide, which is attached to the side opposite to the first reciprocating table across the metal roll and extends in the width direction of the metal roll, and a second guide which is guided by the guide and reciprocates in the width direction of the metal roll. And a nozzle for resin application which is detachably attached to the second reciprocating table.

Here, it is preferable that the second reciprocating motion table is reciprocated by using a drive source for reciprocating the first reciprocating motion table.

[0007]

[Action]

 The metal roll surface processing apparatus of the present invention is equipped with a first reciprocating table and a second reciprocating table. A two-fluid spray nozzle row for etching is attached to the first reciprocating table, while a nozzle for resin coating is attached to the second reciprocating table. Therefore, the resin film formation and the etching can be performed using one metal roll surface processing apparatus.

Further, since the resin coating nozzle is guided by a guide extending in the width direction of the metal roll and reciprocates in the width direction of the metal roll to coat the metal roll surface with the resin, the metal roll surface is uniformly coated. A coating film having various thickness can be formed. Here, if the drive source for reciprocating the first reciprocating table is used to reciprocate the second reciprocating table, the price is further reduced.

[0009]

【Example】

 An embodiment of the metal roll surface processing apparatus of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a schematic configuration of a metal roll surface processing apparatus, FIG. 2 is a perspective view showing a state in which a coating film is formed on a metal roll surface by a resin coating nozzle, and FIG. 3 is a two-fluid spray nozzle row. It is a side view showing a mechanism for moving the width direction.

The metal roll surface processing apparatus 10 includes a mechanism 20 for reciprocating the resin coating nozzle 12 in the width direction of the metal roll 14, and a two-fluid spray nozzle row 16 for etching in the width direction of the metal roll 14. The mechanism 30 is provided. The total length of the cast iron metal roll 14 is 1400 mm, the roll diameter is 60 mmφ, and the final etching width is 1260 mm. The rotation speed of the metal roll 14 is 150 rpm. A general rolling roll has a smaller chock when it is attached to a rolling mill than the center, but the rolling roll of the present invention has a roll width of almost the same diameter. Further, in order to etch the metal roll 14 to the very limit of the roll width, the resin coating range needs to be equal to or larger than the etching treatment width, and the uniformity of the coating film thickness within the etching treatment width is important.

As for the processing procedure of the surface processing of the metal roll 14, first, the metal roll 14 is set on the chuck portion 18 of the metal roll surface processing apparatus 10, the surface of the metal roll 14 is degreased, and then the acid resistant resin is spray-coated. Then, an acid resistant resin film is formed on the surface of the metal roll 14. After that, the metal roll 14 is moved to a laser marking device (not shown), and the acid resistant resin film on the surface of the metal roll 14 is marked with an arbitrary pattern. After that, the metal roll 14 is moved to the metal roll surface processing apparatus 10 again, a dedicated etching case is set and etching treatment is performed, and finally the acid resistant resin film is peeled off.

By the way, it may be considered that the resin coating step is performed by a laser marking device. However, in order to prevent the laser condensing lens from being contaminated by the scattered resin particles and to prevent the diffusion of the solvent odor generated when applying the resin, a device that combines the resin application device and the etching device is used. did. In addition, this allows only one local exhaust system to be installed.

In the mechanism for applying the acid resistant resin, in order to uniformly apply the acid resistant resin to the surface of the metal roll 14 by spraying, the resin application nozzle 12 is applied to the rotating metal roll 14. It is necessary to move the metal roll 14 in the width direction at a constant speed. The moving speed of the resin coating nozzle 12 during resin coating is in the range of 30 to 200 mm / sec, while the reciprocating speed of the two-fluid spray nozzle row 16 during etching treatment is 3.3 mm / sec. It was found in the experiments of the inventors that the conditions such as the speed and the moving distance of the mechanism for moving the two-fluid spray nozzle row 16 for etching are different from the resin coating conditions. . Therefore, the moving speed of the resin coating nozzle 12 is increased, and the distance for parallel movement with respect to the metal roll 14 is also increased.

Regarding the movement distance, since a plurality of two-fluid spray nozzle rows 16 are used during the etching process, the distance between the nozzles is reciprocated, while the movement distance is more uniform during resin coating. It has been found that one resin coating nozzle 12 is preferable to obtain the resin film thickness. Further, the moving distance of the resin coating nozzle 12 needs to be larger than the entire length of the roll. Moreover, since the acid resistant resin is applied during the etching process, it is necessary to take care so that the resin application nozzle 12 or the like does not become an obstacle.

Therefore, regarding the shortage of the moving distance and the moving speed at the time of coating, the length of the guide rail 22 is set to 1800 mm, and the screw of the mechanism 30 for moving the two-fluid spray nozzle row 16 in the width direction of the metal roll 14 is used. The rotational power of the screw 32 was transmitted to a pulley 34, a wire 36 was hung on the pulley 34, and the resin coating nozzle 12 was moved by the movement of the wire 36 via a corner pulley 38. Further, the moving speed of the resin coating nozzle 12 was increased by making the diameter of the pulley 34 larger than the diameter of the screw screw 32. The pitch of the thread of the screw screw 32 was 5 mm per rotation, but the diameter of the pulley 34 was 40 mmφ, and the circumference length was about 120 mm. When the wire 36 was wound around the pulley 34, it was about 24 mm. It will double the speed and increase the moving distance.

In order to move the two-fluid spray nozzle row 16 in the width direction, the mechanism shown in FIG. 3 was adopted. This mechanism is composed of a device for reciprocating the two-fluid spray nozzle array 16 and a device for controlling them. The reciprocating motion of the two-fluid spray nozzle row 16 transmits the driving force of the forward / reverse nozzle reciprocating motor 42 to the screw screw 32 through the gear box, and the reciprocating motion table 46 screwed to the screw screw 32 is moved. The two-fluid spray nozzle row 16 is attached to the reciprocating table 46 to perform the forward and backward movements. The movement of the reciprocating table 46 is restricted by bringing the reciprocating distance adjusting shaft 50 into contact with the limiter 48. For example, the reciprocating distance 52 is adjusted to 1/2 of the nozzle pitch 54 of the two-fluid spray nozzle row 16.

At the time of resin application, the driving force of the nozzle reciprocating motor 42 is transmitted to the screw screw 32 via the gear box, and the detachable joint provided at the end of the screw screw 32 opposite to the nozzle reciprocating motor 42. 56 (see FIG. 1) is transmitted to the power transmission pulley 34 (see FIG. 1). As described above, the diameter of the power transmission pulley 34 is set to 40 mmφ in order to increase the moving speed of the spray nozzle fixing base 58 for fixing the resin coating nozzle 12. As a result, when the screw screw 32 makes one rotation, the spray nozzle fixing base 58 moves about 120 mm. The power transmission pulley 34 and the spray nozzle fixing base 58 are connected by a spray nozzle moving wire 36, and the spray nozzle fixing base 58 is moved via a corner pulley 38.

As shown in FIG. 4, the resin application nozzle 12 starts spray application of resin by a spray start jig 60 mounted on the spray nozzle fixing base 58 and above the resin application nozzle 12. . Further, since the resin coating nozzle 12 is connected to the spray nozzle moving wire 36 via the spray nozzle fixing base 58, it is guided by the guide rail 22 as the spray nozzle moving wire 36 moves. Make a reciprocating motion.

The guide rail 22 is fixed to the side surface of the base 70 as shown in FIG. Therefore, during the etching process, the spray nozzle fixing base 58 can be moved to the end of the guide rail 22, and the two-fluid spray nozzle row 16 and the resin coating nozzle 12 can be prevented from interfering with each other. The spray nozzle moving wire 36 is “red-wound” on the power transmission pulley 38 via the corner pulley 10 to prevent slippage. Further, the power transmission pulley 38 is connected to the screw screw 32 by a detachable joint 56 only when the resin coating process is performed. Further, the movement of the reciprocating table 46 is restricted by bringing the reciprocating distance adjusting shaft 50 into contact with the limiter 48.

Next, with reference to FIG. 4 and FIG. 5, a description will be given of the usage state of the metal roll surface processing apparatus 10 during the resin application and the etching treatment. FIG. 4 is a side view when used as a resin coating device, and FIG. 5 is a side view when used as an etching device. When used as a resin coating device, the metal roll 14 is held by the chuck portion 18 as shown in FIG. 4, and the two-fluid spray nozzle row 16 reciprocates during the etching process. The fixing jig 74 for reciprocating the fixing plate 72 is removed, and the resin application nozzle 12 is configured to be movable 1600 mm with respect to the metal roll length 1400 mm while spraying an acid resistant resin. An air gun can also be used as the resin coating nozzle 12.

When used as an etching device, as shown in FIG. 5, a local exhaust device 76 is installed above and a vinyl curtain 78 enhances its effect. The same local exhaust device 76 is used when the resin is applied to prevent the diffusion of the solvent odor. FIG. 6 shows a coating film forming range when the metal roll surface processing apparatus 10 is used as a resin coating apparatus. Although the coating thickness is set to 6 to 10 μm in the metal roll processing method of this embodiment, any coating thickness can be set. Further, in the figure, the range indicated by A is the film thickness when the diameter of the metal roll is 50 mm, and the range indicated by B is the film thickness when the diameter of the metal roll is 60 mm.

FIG. 7 shows the accuracy of the coating thickness in the roll width direction. This is the result of coating with a target film thickness of 8 μm and measuring the film thickness after drying with an electromagnetic film thickness meter. According to FIG. 7, it can be seen that the coating film is formed within an error of ± 0.3 μm with respect to the target film thickness.

[0023]

[Effect of device]

 As described above, according to the metal roll surface processing apparatus of the present invention, the first reciprocating table is equipped with the two-fluid spray nozzle row for etching, while the second reciprocating table is coated with the resin. Is attached to the nozzle. Therefore, the resin film can be formed and etched on the metal roll surface by using one metal roll surface processing apparatus. For this reason, the production cost is lower than before and the occupied space is smaller than before. Further, the resin coating nozzle is guided by a guide extending in the width direction of the metal roll and reciprocates in the width direction of the metal roll to coat the metal roll surface with the resin, so that the metal roll surface has a uniform thickness. The coating film can be formed.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of a metal roll surface processing apparatus.

FIG. 2 is a perspective view showing a state in which a coating film is formed on the surface of a metal roll with a resin coating nozzle.

FIG. 3 is a side view showing a mechanism for moving the two-fluid spray nozzle row in the width direction.

4 is a side view when the metal roll surface processing apparatus shown in FIG. 1 is used as a resin coating apparatus.

FIG. 5 is a side view when the metal roll surface processing apparatus shown in FIG. 1 is used as an etching apparatus.

FIG. 6 is a graph showing a coating film formation range when the metal roll surface processing apparatus shown in FIG. 1 is used as a resin coating apparatus.

7 is a graph showing the roll width direction accuracy of the coating film thickness when the metal roll surface processing apparatus shown in FIG. 1 is used as a resin coating apparatus.

[Explanation of symbols]

 10 Metal Roll Surface Processing Device 12 Resin Coating Nozzle 14 Metal Roll 16 Two-fluid Spray Nozzle Row 18 Chuck Part 22 Guide Rail 32 Screw Screw 34 Pulley 36 Wire 38 Corner Pulley 42 Nozzle Reciprocating Motor 46 Reciprocating Motion Table 56 Removable Joint 58 Spray nozzle fixing base 70 base

Claims (1)

[Scope of utility model registration request] 1. A base, a rotation holding mechanism for holding and rotating a metal roll on an upper surface of the base, and a first reciprocating motion that reciprocates a side of the metal roll in a width direction of the metal roll. A table, a two-fluid spray nozzle row for etching, which is detachably attached to the first reciprocating table and which is located above the metal roll, and which opposes the first reciprocating table with the metal roll interposed therebetween. A guide extending in the width direction of the metal roll, attached to the side of the metal roll, a second reciprocating table that reciprocates in the width direction of the metal roll guided by the guide, and a second reciprocating table. A metal roll surface processing apparatus comprising a resin coating nozzle that is detachably attached.