JPH072057U - Gravure roll cleaning equipment - Google Patents

Abstract

(57) [Summary] [Object] To provide a gravure roll cleaning device having a simple structure and capable of efficiently cleaning a gravure roll. [Structure] Rotating means 6 for freely rotating gravure roll 5, first cleaning means 7 for injecting a cleaning liquid onto the surface of gravure roll 5, and contact with the surface of gravure roll 5 at least in a cleaning state The second state
The cleaning means 8 and the moving means 11 for reciprocating the first cleaning means 7 and the second cleaning means 8 along the surface of the gravure roll 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a gravure roll cleaning device used in a gravure coating device and the like, and more particularly to a gravure roll cleaning device suitable for a gravure roll having a mesh-shaped recess.

[0002]

[Prior art]

 Generally, when a gravure roll used in a gravure coating apparatus is used for a long period of time, the coating agent solidifies and adheres to a concave portion, such as a mesh pattern, formed on the coating surface of the gravure roll, causing clogging. Then, if the gravure roll is clogged, the coating film thickness becomes thin.

Therefore, the gravure roll is cleaned by removing the gravure roll from the gravure coating apparatus immediately before reaching the use limit of the gravure roll or at a predetermined frequency.

When cleaning the gravure roll, a desired cleaning liquid is put in a container such as a container, and the gravure roll is immersed in the cleaning liquid by hand while using a brass brush or the like. I was working.

[0005]

[Problems to be solved by the device]

 However, the conventional gravure roll cleaning described above requires a great deal of labor and can be relatively easily cleaned when the concave portion of the gravure roll has a spiral groove. If the shape of the mesh is large and the number of lines is large, for example, if the number of lines of the mesh is 90 lines / cm or more, the distance between the recesses is narrow, and with a general brass brush with a wire diameter of about 70 μm, There was a problem that it could not be washed thoroughly. Therefore, a gravure roll cleaning device that reliably and easily cleans the gravure roll has been desired.

The present invention has been made in view of these points, and overcomes the problems of the conventional ones described above, and has a simple structure and is capable of efficiently cleaning a gravure roll. An object of the present invention is to provide a cleaning device.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the gravure roll cleaning apparatus of the present invention comprises a rotating means for freely rotating the gravure roll, a first cleaning means for injecting a cleaning liquid onto the surface of the gravure roll, and at least in the cleaning state, A moving means for reciprocating the second cleaning means brought into contact with the surface of the gravure roll, the first cleaning means and the second cleaning means along the surface of the gravure roll. It is characterized by having and.

[0008]

[Action]

 According to the gravure roll cleaning device of the present invention having the above-described configuration, the gravure roll is rotated by the first cleaning means and the second cleaning means that move along the axial direction of the gravure roll. The surface of can be cleaned reliably.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a front view showing a main part of an embodiment of a gravure roll cleaning device according to the present invention, FIG. 2 is a side view showing the main part, and FIG. 3 is a plan view showing the main part. Is.

As shown in FIG. 1 and FIG. 2, a gravure roll cleaning apparatus 1 of the present embodiment is provided with a desired cleaning on an upper part of a pedestal 2 which is formed in a substantially rectangular parallelepiped shape from an appropriate material having rigidity. A boot 3 is provided. As shown in FIG. 2, the cleaning booth 3 has an opening / closing door 4 in which the upper part of the front surface of the work side OS can be opened and closed upward. Further, as shown in FIG. 2, the cleaning booth 3 includes a main room 3a arranged above the pedestal 2 and a sub-room attached to a back side BS of the main room 3a opposite to the working side OS. 3b and.

As shown in FIGS. 1 to 3, in the main chamber 3a of the cleaning booth 3, a gravure roll 5, which is a symmetrical object of cleaning, is attachable / detachable with its axial center horizontal (FIG. 1) in the horizontal direction. Suitable rotating tables 6a, 6a as rotating means 6 for rotating the mounted gravure roll 5, and a first cleaning means 7 for spraying an appropriate cleaning liquid (not shown) on the surface of the gravure roll 5. A desired cleaning liquid spraying nozzle 7a, a rotatable disc-shaped brass brush 8a as a second cleaning means 8 which is brought into contact with the surface of the gravure roll 5 at least in the cleaning state, and a gravure roll. A desired air nozzle 9a (FIGS. 1 and 3) as a cleaning means 9 for removing the cleaning liquid and the like adhering to the surface of 5 with a predetermined air pressure is provided.

At the lower left part in the main chamber 3a of the cleaning booth 3, an appropriate drain 10 (FIG. 1) for discharging the cleaning liquid after the gravure roll 5 and the discharged substances such as the coating agent is provided. is set up. In the sub-chamber 3b of the cleaning booth 3, an appropriate moving means 11 for reciprocating the cleaning liquid spray nozzle 7a, the brass brush 8a, and the air nozzle 9a along the axial direction of the gravure roll 5 is provided. Is provided. An appropriate exhaust device (not shown) may be provided above the main chamber 3a of the cleaning booth 3.

As shown in FIG. 1, the turntables 6a, 6a are provided on the left and right sides of the bottom 12 in the main chamber 3a of the cleaning booth 3 so as to horizontally support both shaft ends of the gravure roll 5. The rotary bases 6a are arranged at a distance from each other, and each rotary base 6a is provided with an appropriate supporting member 13 erected on the bottom portion 12 and two rotatable roll portions arranged above the supporting member 13. And the material 14 (FIG. 2). As shown in FIG. 2, the roll members 14 have their axes extending parallel to each other, and their outer peripheries face each other with a desired clearance therebetween, so that the roll members 14 are rotatably supported by the support member 13. It is supported. Further, each roll member 14 of the one turntable shown on the right side of FIG. 1 is provided with an appropriate drive motor 16 such as a speed change motor arranged in the gantry 2 via an appropriate intermediate rotor 15. Is transmitted by the desired belt 17 and pulley 18, and the gravure roll 5 is rotationally driven in the clockwise direction (FIG. 2).

The rotating means 6 may have a structure in which one end in the axial direction of the gravure roll 5 is held by a scroll chuck (not shown) and the other end is supported by a tailstock (not shown). The structure is not particularly limited as long as it is detachable and rotatable.

The moving means 11 has a moving table 19 which is reciprocally movable along the axial direction of the gravure roll 5. The movable table 19 is slidably mounted on a guide shaft 21 (FIGS. 2 and 3) provided on a desired support 20 (FIG. 3) standing upright at an appropriate position in the sub chamber 3b. ing. As shown in FIG. 2, an appropriate lower support member 22 arranged downward is provided at the lower part of the moving table, and the lower support member 22 is rotatable. Two wheels 23 are arranged vertically with a proper distance. Then, each wheel 23 is brought into contact with a desired guide rail 24, 24 having a substantially L-shaped cross section disposed in the sub chamber 3b. The lower support member 22 is wound between two pulleys 25 arranged at desired positions in the sub chamber 3b, and is fixed to an appropriate belt 26 extending in parallel with the guide shaft 21. (Fig. 1). Then, to one pulley 25 shown on the right side of FIG. 1, a driving force from an appropriate driving motor 16 arranged in the gantry 2 is transmitted by a transmission belt 28 via a desired speed reducer 27.

Further, as shown in FIG. 3, an appropriate air nozzle fixing member 29 for fixing the air nozzle 9a is arranged at a position on the right side of the upper surface of the moving table 19, and the air nozzle 9a is provided. Is piped to supply air of desired pressure. An appropriate cleaning liquid injection nozzle fixing member 30 for fixing the cleaning liquid injection nozzle 7a is arranged at the center of the upper surface of the movable table 19, and the cleaning liquid injection nozzle 7a has a structure shown in FIG. As shown in, the pipe is arranged so as to supply the cleaning liquid through a pump 32 having an appropriate filter installed in the gantry 2. Further, at a position on the left side of the upper surface of the moving table 19, an appropriate brass brush supporting member 33 that allows the brass brush 8a to contact the surface of the gravure roll 5 at least in a cleaning state, For example, an air motor 34 is provided as an appropriate drive source for rotating the brass brush 8a. The rotational driving force of the air motor 34 is transmitted to one end of the rotary shaft 35 of the brass brush 8a rotatably attached to one end of the brass brush support member 33 through a desired belt member 36. Further, in the washing state, the contact angle θ (FIG. 1) between the brass brush 8a and the gravure roll 5 is set to be adjustable.

Further, inside the gantry 2, an appropriate control unit 37 (FIG. 1) for controlling the operations of the various types of equipment is provided.

The moving means 11 is configured to allow the first cleaning means 7, the second cleaning means 8 and the cleaning means 9 to travel reciprocally along the surface of the gravure roll 5. However, the structure is not limited to the structure of this embodiment.

Further, the cleaning liquid can be selected from water or various solvents depending on the clogging state of the gravure roll 5 or the kind of coating material. In consideration of the case where a solvent is used as the cleaning liquid, it is desirable that the above-mentioned equipment be made of a chemically resistant material and have an explosion-proof specification.

Further, in the present embodiment, the rotatable disc-shaped brass brush 8a is used as the second cleaning means 8, but a buff using soft wire may be used instead of the brass brush 8a, In particular, it is not limited to this embodiment.

Next, the operation of this embodiment having the above-mentioned configuration will be described.

First, when cleaning the gravure roll 5 using the gravure roll cleaning apparatus 1 of this embodiment, the opening / closing door 4 of the main chamber 3 a of the cleaning booth 3 is opened and the gravure roll 5 to be cleaned is opened. Is mounted on the turntable 6a, and then the brass brush 8a is brought into contact with the surface of the gravure roll 5 at a desired angle θ. Then, the opening / closing door 4 is closed and the drain 10 is opened to complete the preparation for cleaning, and then the cleaning work is started.

That is, while operating various devices to rotate the gravure roll 5, a desired cleaning liquid is sprayed from the cleaning liquid spray nozzle 7a toward a surface of the gravure roll 5 at a desired pressure, for example, about 180 kg / cm 2. At the same time, air is jetted from the air nozzle 9a at a desired pressure toward the surface of the gravure roll 5, and the brass brush 8a brought into contact with the surface of the gravure roll 5 is rotated. Then, in this state, the moving means 11 is driven to move the moving table 19 in the axial direction along the surface of the gravure roll 5, thereby performing the cleaning work.

Further, when the cleaning work is completed, each device is stopped, the opening / closing door 4 of the main room 3a of the cleaning booth 3 is opened, and the cleaned gravure roll 5 is removed from the rotary table 6a.

As described above, according to this embodiment, when the number of lines (not shown) of the mesh of the gravure roll 5 is 90 lines / cm or more, the coating adhered in the mesh and to be cleaned is formed. The coating agent (not shown) is surely removed by the pressure of the high-pressure cleaning liquid jetted from the cleaning liquid jet nozzle 7a, and the removed coating agent is gravureed by the air of the desired pressure jetted from the air nozzle 9a. It can be reliably removed from the surface of the roll 5. Further, when the number of mesh lines (not shown) of the gravure roll 5 is 90 lines / cm or less, the pressure of the high-pressure cleaning liquid and the mechanical force of the brass brush 8a combine to cause The surface can be reliably cleaned. Further, since the gravure roll 5 can be automatically cleaned in the main room 3a of the cleaning booth 3, it is possible to prevent the volatile components and odors of the cleaning liquid from being diffused and adversely affecting the worker, and to prevent the gravure roll It is possible to efficiently clean the rule 5.

An appropriate grinding fluid injection nozzle (not shown) is provided in place of the cleaning fluid injection nozzle 7a, and an appropriate grinding fluid is ejected instead of the cleaning fluid at a desired pressure, for example, about 450 Kg / cm2. By doing so, the gravure roll cleaning apparatus 1 of the present embodiment can be used as a gravure roll recycling polishing apparatus.

It should be noted that the present invention is not limited to the above-described embodiment, and various modifications can be made as necessary.

[0029]

[Effect of device]

 As described above, the gravure roll cleaning device of the present invention has a practical effect of efficiently cleaning the gravure roll with a simple structure.

[Brief description of drawings]

FIG. 1 is a front view showing a main part of an embodiment of a gravure roll cleaning device according to the present invention.

FIG. 2 is a side view showing a main part of a gravure roll cleaning device according to the present invention.

FIG. 3 is a plan view showing a main part of a gravure roll cleaning device according to the present invention.

[Explanation of symbols]

 1 Gravure roll cleaning device 2 Frame 3 Cleaning booth 4 Opening / closing door 5 Gravure roll 6 Rotating means 6a Rotating table 7 First cleaning means 7a Cleaning liquid injection nozzle 8 Second cleaning means 8a Brass brush 9 Cleaning means 9a Air nozzle 10 Drain 11 moving means 16 drive motor 19 moving table 32 pump

Claims (1)

[Scope of utility model registration request] 1. A rotating means for freely rotating the gravure roll, a first cleaning means for injecting a cleaning liquid onto the surface of the gravure roll, and a contact state with the surface of the gravure roll at least in a cleaning state. Cleaning of the gravure roll, comprising: a second cleaning means for moving the first cleaning means and the second cleaning means for reciprocating along the surface of the gravure roll. apparatus.