WO2015147472A1

WO2015147472A1 - Automatic printing apparatus

Info

Publication number: WO2015147472A1
Application number: PCT/KR2015/002588
Authority: WO
Inventors: 박정규
Original assignee: 주식회사 로보프린트
Priority date: 2014-03-28
Filing date: 2015-03-17
Publication date: 2015-10-01
Also published as: KR101588113B1; JP2016539781A; KR20150112502A; JP6239098B2

Abstract

An automatic printing apparatus according to an embodiment of the present invention, which automatically prints an image on the surface of an inner wall or outer wall of a building subject to printing and which requires image printing, may comprise: a frame; an injection unit mounted to be movable on the frame and provided with a first nozzle and a second nozzle; an ink storage unit provided with a first ink storage unit and a second ink storage unit for respectively storing a first ink and a second ink which are respectively supplied to the first nozzle and the second nozzle; a compressed air unit for providing jet force to eject the first ink and the second ink respectively through the first nozzle and the second nozzle; and a control unit for controlling, on the basis of properties of the image, whether to eject a corresponding ink from at least one of the first nozzle and the second nozzle on the surface subject to printing, and for controlling, on the basis of the properties of the surface subject to printing, the separation distance between at least one of the first nozzle and the second nozzle ejecting ink and the surface subject to printing.

Description

Automatic printing device

The present invention relates to an automatic printing apparatus, and more particularly, to an automatic printing apparatus for automatically printing an image on the target surface that needs to print the image of the inner wall or outer wall of the building.

When painting paint on the outer wall of a building or implementing various images such as pictures, letters, symbols, and logos for the image of the building, the worktable is suspended from the roof of the building using a gondola to move up and down on the rope. For example, the paint works or images are performed by the worker on the work platform, or the paint works or images are taken while the worker is fixed on the roof.

In particular, when drawing an image on the exterior wall of a building, the painter draws a sketch on the wall of the building by the same means and method as described above, and then the painter draws the text displayed by using a brush or a paint roller. do.

However, this type of painting or image work requires the operator to work directly at a high position on the outer wall of the building, which always exposes them to the risk of falling and increases the risk of an accident on windy days. There is a disadvantage. In addition, since the worker does the painting work or the image work at a high place, the movement of the worker is not free, of course, this has caused a problem that the work air is long because the painting work or image work is slow. In addition to the risk of industrial accidents, labor costs have been unnecessarily increased due to the nature of painting work performed by workers by workers, which has led to an increase in construction costs.

As such, when painting paint on the outer wall of a building or realizing various images such as pictures, letters, symbols, and logos for the image of the building, it is natural to be made by hand, but it is difficult to expect realistic value. In particular, in the production of pictures, patterns, and photographs by a large output, it is not easy to express such a single large image, and the size of the output object has to be extremely limited.

One object of the present invention is to provide an automatic printing device that can automatically print images on the inner wall or outer wall of a building, and at the same time can print a variety of images more precisely and quickly without error.

In addition, an object of the present invention is to provide a semi-permanent automatic printing device to implement the cleaning of the ink storage unit for storing the ink for image printing and the recovery of the remaining ink by a simple method.

Automatic printing apparatus according to an embodiment of the present invention, the device for automatically printing the image on the target surface that needs to print the image of the inner wall or outer wall of the building, the frame; An injection unit mounted on the frame to move in position and having a first nozzle and a second nozzle; An ink storage unit including a first ink storage unit and a second ink storage unit for storing first ink and second ink respectively supplied to the first nozzle and the second nozzle; Compressed air unit for providing the injection force for the first ink and the second ink is injected through the first nozzle and the second nozzle, respectively; And whether or not ink corresponding to at least one of the first nozzle and the second nozzle is sprayed onto the target surface based on the characteristic of the image, and the first nozzle to which ink is sprayed based on the characteristic of the target surface; And a controller configured to control a separation distance between at least one of the second nozzles and the target surface.

The control unit of the automatic printing apparatus according to an embodiment of the present invention may control the separation distance between the injection unit and the target surface based on the characteristics of the target surface.

Automatic printing apparatus according to an embodiment of the present invention, the bending detection unit is mounted to be movable on the frame to detect whether the target surface is curved;

The control unit may further control the separation distance at which ink corresponding to at least one of the first nozzle and the second nozzle is injected onto the target surface based on a result detected by the bending detection unit. Can be.

The control unit of the automatic printing apparatus according to an embodiment of the present invention may control the position of the bending detection unit to be in contact with the target surface so as to detect whether the target surface is curved by the moving distance for the contact.

The control unit of the automatic printing apparatus according to an embodiment of the present invention determines whether the object surface is bent by a time or distance from which the light irradiated from the bend detection unit toward the object surface is reflected back from the object surface. Can be detected.

The control unit of the automatic printing device according to an embodiment of the present invention, the ink corresponding to at least one of the first nozzle and the second nozzle on the target surface

Before spraying, the bending detection unit may be controlled to detect whether the target surface is curved.

The control unit of the automatic printing apparatus according to an embodiment of the present invention controls the jetting unit so that the image to be printed on the target surface is printed at least one section, and is mounted to be movable on the frame. It may further include a print position guide for guiding a position where the printing of the image corresponding to the section starts.

The automatic printing apparatus according to an embodiment of the present invention, the injection force in order to prevent the corresponding ink from at least one of the first nozzle and the second nozzle is sprayed on the target surface after flowing down from the target surface, It may further include a; water removal unit for removing the moisture of the compressed air supplied from the compressed air to provide.

The control unit of the automatic printing apparatus according to an embodiment of the present invention controls the flow of the compressed air so that the compressed air passing through the water removing unit is supplied to the injection unit and the ink storage unit, respectively, and is supplied to the ink storage unit. And a first pressure regulating unit and a second pressure regulating unit for respectively adjusting the pressure of the compressed air and the pressure of the compressed air supplied to the injection unit.

The control unit of the automatic printing apparatus according to an embodiment of the present invention, the injection unit such that the pressure of the compressed air adjusted by the second pressure control unit is greater than the pressure of the compressed air controlled by the first pressure control unit. And the pressure of the compressed air supplied to the ink storage unit, respectively.

The control unit of the automatic printing apparatus according to an embodiment of the present invention, individually controls whether or not to supply the compressed air, the pressure is adjusted by the second pressure control unit to the first nozzle and the second nozzle, It is possible to individually control whether or not the compressed air controlled by the first pressure adjusting unit is supplied to the first ink storage unit and the second ink storage unit.

The control unit of the automatic printing apparatus according to an embodiment of the present invention, when the first ink is ejected from the first nozzle, by the compressed air controlled by the second pressure adjusting unit, the first The first ink supplied to the first nozzle may be injected from the first ink storage unit provided by the compressed air whose pressure is controlled by the pressure adjusting unit.

The automatic printing apparatus according to an embodiment of the present invention may further include a washing unit for washing at least one of the first nozzle and the second nozzle by transporting a cleaning agent to the injection unit.

The automatic printing apparatus according to an embodiment of the present invention further includes a control valve for controlling whether the injection force is provided by the compressed air unit, wherein the compressed air unit is configured to provide the injection force by the control valve. When blocked, air may be sucked toward the recovery unit so that the remaining ink remaining in the ink storage unit may be recovered to the recovery unit.

According to the automatic printing apparatus according to the present invention, since image printing can be performed automatically instead of manually, it is possible not only to actively prevent the occurrence of industrial accidents, but also to reduce the burden of labor costs, and thus work in a relatively short time. This can be completed, which has an excellent effect on work time and efficiency.

In addition, in automatically printing an image on an inner wall or an outer wall of a building, the image printing can be precisely implemented and can be easily managed for repetitive use.

In addition, when printing one image and then printing another image, it is possible to maximize the service life by implementing the recovery of the remaining ink remaining in the ink storage unit by a simple method.

In addition, it is possible to maximize the accuracy of image printing by preventing the clogging of the nozzle by cleaning the nozzle.

1 is a schematic perspective view showing an automatic printing apparatus according to an embodiment of the present invention.

Figure 2 is a block diagram showing an automatic printing apparatus according to an embodiment of the present invention.

Figure 3 is a first flow diagram showing the operation sequence of the automatic printing apparatus according to an embodiment of the present invention.

Figure 4 is a second flow chart showing the operation sequence of the automatic printing apparatus according to an embodiment of the present invention.

Figure 5 is a block diagram showing a washing process of the injection unit provided in the automatic printing apparatus according to an embodiment of the present invention.

6 is a flowchart illustrating a process of recovering residual ink of an ink storage unit provided in an automatic printing apparatus according to an embodiment of the present invention.

Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention may further degenerate other inventions or the present invention by adding, changing, or deleting other elements within the scope of the same idea. Other embodiments that fall within the scope of the inventive concept may be readily proposed, but they will also be included within the scope of the inventive concept.

In addition, the components with the same functions within the scope of the same idea shown in the drawings of each embodiment will be described using the same reference numerals.

1 is a schematic perspective view showing an automatic printing apparatus according to an embodiment of the present invention, Figure 2 is a block diagram showing an automatic printing apparatus according to an embodiment of the present invention.

1 and 2, the automatic printing apparatus 100 according to an embodiment of the present invention automatically prints the image on the target surface that needs to print various images such as pictures, characters, symbols, and logos of the inner or outer walls of the building. A printing apparatus for printing with a frame, the frame 110 which functions as an entire support, the injection unit 120 is mounted so as to be movable on the frame 110 and having at least one nozzle, the ink in the at least one nozzle It includes an ink storage unit 130 for supplying a compressed air unit 140 for providing an injection force for the injection of the ink through the at least one or more nozzles and a control unit 150 for controlling the injection unit 120 Can be.

Here, the injection unit 120 may include at least one or more nozzles, but for the convenience of description, hereinafter, the injection unit 120 will be described with an example including the first nozzle 122 and the second nozzle 124.

The ink storage unit 130 may also include at least one ink storage unit 130 in the same manner as the injection unit, but for convenience of description, the first ink storage unit 132 and the first ink storage unit 130 may be provided. It will be described with an example having a second ink storage unit 134 in which two inks are stored.

The first ink stored in the first ink storage unit 132 may be injected through the first nozzle 122, and stored in the second ink storage unit 134 through the second nozzle 124. The second ink may be ejected, and the first nozzle 122, the first ink storage unit 132, the second nozzle 124, and the second ink storage unit 134 correspond to each other. Can be.

The automatic printing apparatus 100 may be moved to a position of the target surface by a winch drum installed on a roof or the like of a crane when the image printing is required on the outer wall of the building, and when the image printing is required on the inner wall of the building, As shown in FIG. 1, the wheel 200 in contact with the ground may be automatically or manually moved to a desired position.

The frame 110 may provide an appearance of the automatic printing apparatus 100 according to an embodiment of the present invention, and the vertical support frame 112, the horizontal support frame 114, and the front and rear support frames 112 to be described later will be described. And the like can be supported to be positioned at a predetermined position.

The vertical support frame 112 is controlled by the controller 150 may be moved in the vertical direction (A) on the frame 110, which causes the injection unit 120 to the target surface that needs image printing The horizontal support frame 114 may be moved in the vertical direction A to move the position.

Here, the power for the position movement of the vertical support frame 112 in the vertical direction (A) may be provided by the vertical power supply unit (F1), after all, the controller 150 is the motor and the rotation of the motor The vertical support frame 112 may be controlled by controlling the vertical force providing unit F1 including a rack gear and a pinion gear interlocked with each other.

Then, when the vertical support frame 112 is moved in the vertical direction (A) by the vertical power providing unit (F1), the horizontal support frame 114 also moves in the vertical direction (A) accordingly Then, the injection unit 120 may be moved in the left and right directions (B) on the left and right support frame 114 by the power by the left and right direction power providing unit (F2).

On the other hand, the injection unit 120 may be moved in the front and rear direction (C) toward the target surface, for this purpose, the frame 110 may be equipped with a front and rear support frame and a front and rear direction power providing unit.

As described above, the injection unit 120 is required to print the image of the inner wall or the outer wall of the building by the vertical support frame 112, the horizontal support frame 114 and the front and rear support frame controlled by the controller 150. It can be moved in the area of the target surface, and the desired image can be printed on the target surface by spraying ink with the movement of the position.

An image printing process by the injection unit 120 will be described in detail with reference to FIGS. 3 and 4.

Injection of the first ink and the second ink from the first nozzle 122 and the second nozzle 124 of the injection unit 120 may be implemented by the compressed air unit 140 that provides the injection force, A series of jetting of the first ink and the second ink may be controlled by the controller 150.

Compressed air for providing the injection force from the compressed air unit 140 may be moisture is removed by the moisture removal unit 160, so that the ink injected from the injection unit 120 flows from the target surface It can prevent falling.

Then, the pressure of each of the compressed air supplied to the ink reservoir 130 and the injection unit 120 through the water removal unit 160 is the first pressure control unit 170 and the second pressure control unit ( 180). Here, when the first ink is injected from the first nozzle 122,

From the first ink storage unit 132 provided by the compressed air, the pressure is adjusted by the second pressure control unit 180, the compressed air by the pressure is controlled by the first pressure control unit 170. The first ink supplied to the first nozzle 122 may be injected.

In addition, when the second ink is injected from the second nozzle 124,

From the second ink storage unit 134 provided by the compressed air, the pressure is controlled by the second pressure control unit 180, the compressed air by the pressure is controlled by the first pressure control unit 170. The second ink supplied to the second nozzle 124 may be injected.

The print position guide unit 192 and the bending detection unit 194 may be mounted on the frame 110 to move the position, and the print position guide unit 192 may include at least one image to be printed on the target surface. When partitioned and printed by one or more sections may guide the position where the printing of the image corresponding to each section is started, the bending detection unit 194 may detect whether the target surface is curved.

Specifically, when the image to be printed on the target surface needs to be divided into a plurality of sections for printing due to size, etc., the controller 150 controls this, and the image corresponding to one section is printed and the image of the next section is printed. By controlling the print position guide unit 192 to guide the print start position of the next section at the time, it is possible to improve the accuracy of the overall image printing by implementing the continuity of the image between the sections.

That is, the control unit 150 controls the print position guide unit 192 such that the print position guide unit 192 coincides with the print start position for each section of the target surface shown on the display (not shown), thereby discharging the spray unit. The ink injection start position for each section from the 130 can be precisely controlled.

Here, the printing position guide unit 192 may be a light source or a mechanical part for irradiating light, but is not necessarily limited thereto.

On the other hand, an imaging device such as a camera may be mounted on the frame 110 to determine whether the print position guide unit 192 exactly matches the print start position for each section of the target surface shown on the display (not shown). have.

The bending detection unit 194 may detect the curvature of the target surface to enable the distance between the printing surface and the injection unit 120 to be adjusted.

The controller 150 may position the curvature detecting unit 194 to be in contact with the target surface to detect the curvature of the target surface by a moving distance for the contact, and the curvature detecting unit 194 may be The injection unit 120 may be mounted to be detachable.

In addition, the controller 150 may detect whether the target surface is curved by a time or a distance from which the light irradiated from the bending detecting unit 194 toward the target surface is reflected back from the target surface. In this case, the bending detection unit 194 may be a light source such as an ultrasonic sensor.

On the other hand, the bending detection unit 194 is a curved state of the target surface by a contact method or a non-contact method continuously or discontinuously to the target surface by the controller 150 before ink is injected by the injection unit 120 in advance After sensing, the ink may be sprayed by controlling the sprayer 120 based on the detected result.

That is, the controller 150 controls the front and rear direction supporting frame based on the result detected by the bending detection unit 194 to control the position of the injection unit 120 in the front and rear directions, so that the most ideal injection distance is achieved. Can be.

As a result, the control unit 150 may control the positional movement of the injection unit 120 based on the result detected by the bending detection unit 194 and the printing position guide unit 192.

Hereinafter will be described in detail the operating sequence of the automatic printing apparatus 100 according to an embodiment of the present invention.

3 is a first flowchart illustrating an operation sequence of an automatic printing apparatus according to an embodiment of the present invention.

Referring to FIG. 3, when an image is automatically printed on a target surface requiring image printing of an inner wall or an outer wall of a building, the automatic printing apparatus 100 according to the present invention is manually operated using a wheel 200 contacting the ground. Or move it to the desired position automatically.

Then, when power is applied to the automatic printing apparatus 100 (S110), power for operating each component of the automatic printing apparatus 100 is supplied.

When the power is supplied, the controller 150 operates the bend detection unit 194 mounted to the frame 110 so as to be movable in position so as to detect whether the object surface needs to be printed or not (S120). When the bending detection unit 194 is mounted on the injection unit 120, the bending detection unit 194 may detect whether the target surface is curved by moving the injection unit 120 along the target surface. have.

At this time, the controller 150 controls each power source to move the vertical support frame 112, the horizontal support frame 114 and the front and rear support frame to move the position of the bending detection unit 194. Finally, based on the result detected by the bending detection unit 194, the injection unit 120 for ink injection is controlled.

That is, before the ink for image printing is ejected from the jetting unit 120, the positional movement of the jetting unit 120, that is, the curvature of the target surface requiring image printing by the positional shifting of the bend detecting unit 194. The degree of curvature of the target surface detected by the curvature detecting unit 194 is stored in a data storage unit (not shown).

The bending information of the target surface stored in the data storage unit as described above may be used by the controller 150 to control the positional movement of the jet unit 120 for jetting the ink, and finally, the controller 150. Is to precisely control the injection unit 120 based on the information.

Here, the bending detection of the target surface by the bending detection unit 194 is a position movement of the injection unit 120 by the control unit 150, that is, the control unit 150 causes the bending detection unit 194 to the target surface. It can be implemented by the movement distance for the contact by controlling the position so as to contact with.

In addition, the controller 150 may detect whether the target surface is curved by a time or a distance at which the light irradiated from the bending detecting unit 194 toward the target surface is reflected back from the target surface.

As described above, the bending detection unit 194 detects whether the object surface is bent before spraying a corresponding ink from at least one of the first nozzle 122 and the second nozzle 124 into the object surface. When the control unit 150 is completed, the control unit 150 controls the compressed air unit 140 for ink injection by the injection unit 120.

The control unit 150 provides a compression force for providing the injection force to eject the first ink and the second ink from the compressed air unit 140 through the first nozzle 122 and the second nozzle 124, respectively. When the compressed air unit 140 is controlled to supply air (S130), the compressed air supplied from the compressed air unit 140 passes through the water removing unit 160 and the water is removed by the water removing unit 160. The ink may be removed (S140), thereby preventing the ink sprayed from at least one of the first nozzle 122 and the second nozzle 124 from flowing down from the target surface.

Compressed air from which moisture is removed by the moisture removing unit 160 may be supplied to the ink storage unit 130 and the injection unit 120 (S150), and the compressed air supplied to the ink storage unit 130 may be supplied. The pressure is adjusted by the first pressure adjusting unit 170 (S162), the compressed air supplied to the injection unit 120 may be adjusted by the second pressure adjusting unit 180 (S164). .

In other words, the controller 150 may control the flow of the compressed air so that the compressed air passing through the water removing unit 160 is supplied to the injection unit 120 and the ink storage unit 130, respectively. Finally, ink may be injected from the jetting unit 120.

Here, the control unit 150 is the injection unit 120 such that the pressure of the compressed air controlled by the second pressure control unit 180 is greater than the pressure of the compressed air controlled by the first pressure control unit 170. ) And the pressure of the compressed air supplied to the ink storage 130, respectively.

When the first ink is to be injected through the first nozzle 122 of the first nozzle 122 and the second nozzle 124 provided in the injection unit 120, the first nozzle 122 from the first nozzle 122 The jetting force from which ink is injected may be realized by the pressure of the first ink flowing into the first nozzle 122 from the first ink storage unit 132 and the pressure of the compressed air supplied to the first nozzle 122. have.

In other words, the pressure of the first ink flowing into the first nozzle 122 from the first ink storage unit 132 is supplied to the first ink storage unit 132. Pressure may be provided by the compressed air, and when the first ink is supplied to the first nozzle 122, the compressed air may be controlled by the second pressure controller 180. The first ink is jetted to the target surface from the first nozzle 122 (S170).

On the other hand, the control unit 150 when the ink is ejected from the jetting unit, the ink corresponding to at least one of the first nozzle 122 and the second nozzle 124 on the target surface based on the characteristics of the image The separation distance between at least one of the first nozzle 122 and the second nozzle 124 from which ink is injected and the target surface may be controlled based on whether the target is sprayed and the characteristics of the target surface.

The controller 150 may control the separation distance between the injection unit 120 and the target surface based on the characteristics of the first surface 122 and the second nozzle 124 at the same time. Can be.

Specifically, the ink corresponding to at least one of the first nozzle 122 and the second nozzle 124 in the region of the target surface is based on the result detected by the bending detecting unit 194. The separation distance sprayed on the surface can be controlled.

Therefore, the injection unit 120 is automatically moved by the control unit 150 in the vertical, horizontal, left and right directions to print a desired image on the target surface.

On the other hand, the controller 150 may individually control the first nozzle 122 and the second nozzle 124 according to the type of ink to be sprayed, that is, the controller 150 is a second pressure control unit ( 180 separately control whether or not the compressed air controlled by the pressure is supplied to the first nozzle 122 and the second nozzle 124, and the pressure of the compressed air controlled by the first pressure controller By separately controlling whether the first ink storage unit and the second ink storage unit are supplied, ink may be ejected only from a desired nozzle.

In addition, when the image to be printed on the target surface needs to be divided into a plurality of sections for printing due to size, etc., the controller 150 controls the print position guide unit 192 in step S170 to correspond to one section. When the image is printed and the image of the next section is printed, the printing start position of the next section can be guided, which can improve the accuracy of the overall image printing by implementing the continuity of the image between the sections.

4 is a second flowchart illustrating an operation sequence of an automatic printing apparatus according to an embodiment of the present invention.

In the second flowchart of FIG. 4, the step of detecting whether the object surface is curved by the bending detection unit 194 is performed simultaneously with the step of injecting ink from the jetting unit 120 in comparison with the first flowchart of FIG. 3. All steps are the same except that the description will be omitted.

When power is applied to the automatic printing apparatus 100 (S210), compressed air is supplied from the compressed air unit 140 (S220), and the supplied compressed air is removed from the water by the moisture removing unit 160 (S230). The compressed air from which moisture is removed is controlled by the first pressure controller 170 to be supplied to the ink reservoir 130 (S242) and at the same time the pressure is controlled by the second pressure controller 180. The injection unit 120 is supplied (S244).

Thereafter, the controller 150 controls the movement of the position of the sprayer 120 to correspond to the image to be printed on the target surface, and the sprayer 120 controlled by the controller 150 sprays ink onto the target surface. (S252).

At this time, for precise position control of the injection unit 120, the control unit 150 may allow the bending detection unit 194 to detect whether the target surface is curved (S254), and eventually, automatic printing according to the present invention. The apparatus 100 performs the jetting operation while sensing the characteristics of the target surface in order to improve the accuracy of the jetting while the ink is jetted from the jetting unit 120.

FIG. 5 is a block diagram illustrating a cleaning process of an injection unit provided in an automatic printing apparatus according to an embodiment of the present invention.

Referring to FIG. 5, the automatic printing apparatus 100 according to the present invention prints one image and then prints another image, or to clean the spray unit 120 periodically to prevent clogging of the nozzle. It may include a portion 210.

The washing unit 210 may pressurize alcohol, which is a kind of washing water, to the spray unit 120, and at least one of the first nozzle 122 and the second nozzle 124 of the spray unit 120. With the alcohol, at least one of the first nozzle 122 and the second nozzle 124 may be cleaned for other image printing or to prevent clogging.

Referring to FIG. 6, when the automatic printing apparatus 100 according to the present invention prints one image and then prints another image, the automatic printing apparatus 100 stores the remaining ink remaining in the ink storage unit 130 in which the ink for image printing is stored. It may include a control valve 300 for the recovery unit 220 to recover.

The control valve 300 may control whether or not the compressed air is supplied from the compressed air unit 140 to the ink storage unit 130 and the injection unit 120, and remains in the ink storage unit 130. When the residual ink is to be recovered, the supply of compressed air from the compressed air unit 140 to the ink storage unit 130 and the injection unit 120 may be blocked by the control valve 300.

In this case, the compressed air unit 140 does not supply compressed air to the ink storage unit 130 and the jetting unit 120, but allows the air to be sucked toward the recovery unit 220. The residual ink is introduced into the recovery part 220 through the cushion hose communicating the 130 and the recovery part 220.

In the above description of the configuration and features of the present invention based on the embodiment according to the present invention, the present invention is not limited thereto, and various changes or modifications can be made within the spirit and scope of the present invention. It will be apparent to those skilled in the art that such changes or modifications fall within the scope of the appended claims.

* Description of the sign *

100: automatic printing device

110: frame

120: injection unit

130: ink storage unit

140: compressed air

150: control unit

160: water removal unit

170: first pressure control unit

180: second pressure control unit

Claims

In the automatic printing device for automatically printing the image on the target surface that needs to print the image of the inner wall or outer wall of the building,

frame;

An injection unit mounted on the frame to move in position and having a first nozzle and a second nozzle;

An ink storage unit including a first ink storage unit and a second ink storage unit for storing first ink and second ink respectively supplied to the first nozzle and the second nozzle;

Compressed air unit for providing the injection force for the first ink and the second ink is injected through the first nozzle and the second nozzle, respectively; And

Whether or not the ink corresponding to at least one of the first nozzle and the second nozzle is sprayed onto the target surface based on the characteristics of the image, and the first nozzle and ink sprayed on the basis of the characteristics of the target surface; And a controller for controlling a separation distance between at least one of the second nozzles and the target surface.
The method of claim 1, wherein the control unit,

And an automatic printing device for controlling a separation distance between the jetting part and the target surface based on the characteristics of the target surface.
The method of claim 1,

It is further mounted on the frame so as to move the position detecting portion for detecting whether the curved surface of the target;

And the control unit controls the separation distance at which ink corresponding to at least one of the first nozzle and the second nozzle is sprayed onto the target surface based on a result detected by the bending detecting unit.
The method of claim 3, wherein the control unit,

And position control of the bending detection unit to be in contact with the target surface so as to detect whether the target surface is curved by a moving distance for the contact.
The method of claim 3, wherein the control unit,

And an automatic printing device configured to detect whether the object surface is bent by a time or distance from which the light irradiated from the bend detection unit toward the object surface is reflected from the object surface and returned.
The method of claim 3, wherein the control unit,

And a control unit of the bending detection unit to detect whether the target surface is curved before spraying a corresponding ink from at least one of the first nozzle and the second nozzle onto the target surface.
The method of claim 1,

The control unit controls the jetting unit to print the image to be printed on the target surface for at least one section,

And a printing position guide unit mounted on the frame to move the position and guiding a position at which printing of the image corresponding to each section starts.
The method of claim 1,

In order to prevent corresponding ink from at least one of the first nozzle and the second nozzle from flowing down from the target surface after being sprayed onto the target surface,

And a water removing unit for removing water from the compressed air supplied from the compressed air unit to provide the injection force.
The method of claim 8,

The control unit controls the flow of the compressed air so that the compressed air passing through the water removal unit is supplied to the injection unit and the ink storage unit, respectively,

And a first pressure regulating unit and a second pressure regulating unit for adjusting the pressure of the compressed air supplied to the ink storage unit and the pressure of the compressed air supplied to the injection unit, respectively.
The method of claim 9, wherein the control unit,

Automatically controlling the pressure of the compressed air supplied to the injection unit and the ink storage unit so that the pressure of the compressed air adjusted by the second pressure adjusting unit is greater than the pressure of the compressed air controlled by the first pressure adjusting unit. Printing device.
The method of claim 9, wherein the control unit,

Individually controlling whether the compressed air whose pressure is adjusted by the second pressure adjusting unit is supplied to the first nozzle and the second nozzle, and wherein the compressed air whose pressure is controlled by the first pressure adjusting unit is controlled. An automatic printing apparatus for individually controlling whether the first ink storage unit and the second ink storage unit are supplied.
The method of claim 9, wherein the control unit,

When spraying the first ink from the first nozzle,

The first supply to the first nozzle from a first ink reservoir provided by the compressed air whose pressure is controlled by the second pressure regulating unit, and by the compressed air whose pressure is controlled by the first pressure regulating unit; 1 Automatic printing device for ejecting ink.
The method of claim 1,

And a washing unit for washing at least one of the first nozzle and the second nozzle by feeding a cleaning agent to the spraying unit.
The method of claim 1,

A control valve for controlling whether the compressed air is provided by the compressed air unit;

More,

The compressed air unit, when the supply of the injection force is blocked by the control valve,

An automatic printing device for allowing the air to be sucked toward the recovery unit to recover the remaining ink remaining in the ink storage unit to the recovery unit.