JP6239098B2 - Automatic printing device - Google Patents

Description

  The present invention relates to an automatic printing apparatus, and more particularly to an automatic printing apparatus that automatically prints an image on a target surface that requires image printing of an inner wall or an outer wall of a building.

  When painting various colors such as painting, letters, symbols, logos, etc. to paint the exterior wall of the building or to create an image of the building, it has traditionally been a work table on a rope using a gondola from the roof of the building. The paint is painted and imaged directly while the operator is on the workbench, or the operator hangs down on a rope fixed on the roof and removes the paint. I was doing painting or image work.

  In particular, when an image is drawn on the outer wall of a building, the designer shows the following figure on the wall surface of the building through the same means and method as described above, and then the paint painter uses a brush or a paint roller. I was drawing a design phrase.

  However, this method of painting or image work always requires the operator to work directly at a high position on the outer wall of the building, so there is always a danger of falling, and there is a risk of accidents on windy days. There is a disadvantage that becomes larger. In addition, since the operator performs the paint color business or image work at a high position, the movement of the worker is not inconvenient, and this causes the problem that the paint color work or image work is delayed and the work period is prolonged. It was. In addition to the dangers of industrial disasters, the labor cost is unnecessarily weighted due to the characteristics of the paint work that is manually performed by the worker, which causes the construction cost to increase.

  In this way, when painting various images such as pictures, characters, symbols, logos, etc. for painting the exterior wall of the building or for building images, etc. However, it is difficult to expect the actual value, especially because it is not easy to express such a large image in the production of pictures, patterns, and photographs with large output objects. The size of was extremely limited.

  An object of the present invention is to provide an automatic printing apparatus that automatically prints an image on an inner wall or an outer wall of a building and prints various images more accurately and quickly without error. is there.

  Another object of the present invention is to provide a semi-permanent automatic printing apparatus that implements cleaning of an ink storage unit storing ink for image printing and recovery of residual ink by a simple method. is there.

  An automatic printing apparatus according to an embodiment of the present invention is an apparatus for automatically printing an image on a target surface that requires image printing of an inner wall or an outer wall of a building, and the position of the image can be moved on the frame. An ejection unit having a first nozzle and a second nozzle, and a first ink storage unit and a first ink storage unit respectively storing a first ink and a second ink supplied to the first nozzle and the second nozzle, respectively. An ink storage unit including two ink storage units, and a compressed air unit that provides an ejection force that causes the first ink and the second ink to be ejected through the first nozzle and the second nozzle, respectively. Based on the characteristics of the image, whether or not to eject ink corresponding to at least one of the first nozzle and the second nozzle on the target surface, and the target Ink is ejected on the basis of the characteristics of the surface and a control unit for controlling the distance between the at least one said target surface of said first nozzle and said second nozzle.

  The control unit of the automatic printing apparatus according to the embodiment of the present invention controls a separation distance between the ejection unit and the target surface based on characteristics of the target surface.

  The automatic printing apparatus according to an embodiment of the present invention may further include a bend sensing unit that is mounted on the frame so as to be movable and senses whether or not the target surface is bendable, and the control unit is configured by the bend sensing unit. Based on the sensed result, the separation distance at which ink corresponding to at least one of the first nozzle and the second nozzle is ejected onto the target surface is controlled.

  The control unit of the automatic printing apparatus according to an embodiment of the present invention controls the position of the bending sensing unit so as to contact the target surface and senses whether the target surface is bent based on a moving distance for the contact. Like that.

  The control unit of the automatic printing apparatus according to an embodiment of the present invention may be configured such that the light irradiated from the bending sensing unit toward the target surface reflects the light from the target surface and returns or the distance of the target surface. Sense the possibility of bending.

  The control unit of the automatic printing apparatus according to an embodiment of the present invention may include the bending sensing unit before ejecting ink corresponding to at least one of the first nozzle and the second nozzle to the target surface. It is controlled to detect whether the object surface is bent.

  The control unit of the automatic printing apparatus according to an embodiment of the present invention controls the ejection unit so that the image to be printed on the target surface is printed for at least one section, and moves the position on the frame. It further includes a print position guide portion that is mounted so as to guide a position where printing of an image corresponding to each section is started.

  In an automatic printing apparatus according to an embodiment of the present invention, the ink corresponding to at least one of the first nozzle and the second nozzle is prevented from flowing from the target surface after being ejected onto the target surface. Further, a moisture removing unit that removes moisture from the compressed air supplied from the compressed air unit for providing the injection force is further included.

  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 that has passed through the moisture removing unit is supplied to the ejection unit and the ink storage unit, respectively. It further includes a first pressure adjusting unit and a second pressure adjusting 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 ejection unit, respectively.

  The control unit of the automatic printing apparatus according to an embodiment of the present invention may be configured such that the pressure of the compressed air adjusted by the second pressure adjusting unit is larger than the pressure of the compressed air adjusted by the first pressure adjusting unit. The pressure of the compressed air supplied to the ejection unit and the ink storage unit is controlled.

  The control unit of the automatic printing apparatus according to an embodiment of the present invention individually controls whether the compressed air whose pressure is adjusted by the second pressure adjusting unit is supplied to the first nozzle and the second nozzle. Whether the compressed air whose pressure is adjusted by the first pressure adjusting unit is supplied to the first ink storing unit and the second ink storing unit is individually controlled.

  When the first ink is ejected from the first nozzle, the control unit of the automatic printing apparatus according to an embodiment of the present invention uses the compressed air whose pressure is adjusted by the second pressure adjusting unit to generate the first pressure. The first ink supplied to the first nozzle is ejected from a first ink reservoir provided by compressed air whose pressure is adjusted by the adjusting unit.

  The automatic printing apparatus according to an embodiment of the present invention further includes a cleaning unit that pumps a cleaning agent to the ejection unit to clean at least one of the first nozzle and the second nozzle.

  The automatic printing apparatus according to an embodiment of the present invention may further include an adjustment valve that adjusts whether or not the jet force is provided by the compressed air unit, and the compressed air unit is blocked from providing the jet force by the control valve. Then, the residual ink remaining in the ink storage unit is collected by the collection unit so that air is sucked toward the collection unit.

  According to the automatic printing apparatus according to an embodiment of the present invention, since the image printing operation can be automatically performed instead of the manual operation, not only the occurrence of an industrial disaster is actively prevented, but also the labor cost can be reduced. The burden is reduced and the work is completed in a relatively short time, so there is an excellent effect in terms of work time and efficiency.

  In addition, when an image is automatically printed on an inner wall or an outer wall of a building, it is possible to finely embody the image print and to easily manage for repeated use.

  In addition, when one image is printed and then another image is printed, recovery of the residual ink remaining in the ink storage unit can be realized by a simple method to maximize the service life.

  Further, nozzle clogging can be prevented through nozzle cleaning, and the accuracy of image printing can be maximized.

1 is a schematic perspective view showing an automatic printing apparatus according to an embodiment of the present invention. 1 is a block diagram illustrating an automatic printing apparatus according to an embodiment of the present invention. It is a 1st flowchart which shows the operation | movement procedure of the automatic printing apparatus by one Example of this invention. It is a 2nd flowchart which shows the operation | movement procedure of the automatic printing apparatus by one Example of this invention. FIG. 3 is a block diagram illustrating a cleaning process of an ejection unit provided in an automatic printing apparatus according to an embodiment of the present invention. 4 is a flowchart for explaining a process of collecting residual ink in an ink storage provided in an automatic printing apparatus according to an embodiment of the present invention.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the idea of the present invention is not limited to the embodiments shown, and those skilled in the art who understand the idea of the present invention can make a step by step through addition, change, deletion, etc. of other components within the scope of the same idea. Other embodiments included in the scope of the idea of other inventions and the present invention should be easily proposed, but it can be said that this is also included in the scope of the spirit of the present invention.

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

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

  Referring to FIGS. 1 and 2, an automatic printing apparatus 100 according to an embodiment of the present invention automatically applies the image to a target surface on which various images such as pictures, characters, symbols, and logos on the inner or outer wall of a building need to be printed. A frame 110 that functions as an overall support, an ejection unit 120 that is mounted on the frame 110 so as to be movable and includes at least one nozzle, and the at least one An ink storage unit 130 that supplies ink to the nozzles of the nozzle, a compressed air unit 140 that provides an ejection force that causes the ink to be ejected through the at least one nozzle, and a control unit that controls the ejection unit 120. 150.

  Here, the injection unit 120 includes at least one or more nozzles, but for the sake of convenience, the following description will be given by taking the first nozzle 122 and the second nozzle 124 as an example.

  In addition, at least one ink storage unit 130 is provided in the same manner as the ejecting unit of the ink storage unit 130. For convenience of explanation, the first ink storage unit 132 storing the first ink and the second ink are stored. The second ink storage unit 134 will be described as an example.

  The first ink stored in the first ink storage unit 132 is ejected through the first nozzle 122 and the second ink stored in the second ink storage unit 134 through the second nozzle 124. However, the first nozzle 122 and the first ink storage part 132, and the second nozzle 124 and the second ink storage part 134 are in a mutually corresponding relationship.

  When the image printing is required on the outer wall of the building, the automatic printing apparatus 100 is moved to the position of the target surface by a winch drum or the like installed on a crane or the roof of the building, but the image printing is required on the inner wall of the building. In this case, as shown in FIG. 1, it is automatically or manually moved to a desired position by a ring 200 that is in contact with the ground.

  The frame 110 provides an overview of the automatic printing apparatus 100 according to an embodiment of the present invention, and supports a vertical support frame 112, a horizontal support frame 114, and a front / rear support frame, which will be described later, at predetermined positions. To do.

  The vertical support frame 112 is controlled by the control unit 150 and moved in the vertical direction A on the frame 110, so that the ejection unit 120 is moved to the target surface where image printing is required. The direction support frame 114 is moved in the gradual downward direction A.

  Here, the power for moving the vertical support frame 112 in the vertical direction A is provided by the vertical power supply unit F1, but after all, the control unit 150 includes a rack gear that is interlocked with the rotation of the motor and the motor. The vertical support frame 112 including the pinion gear is controlled to control the position of the vertical support frame 112.

  When the vertical support frame 112 is moved in the vertical direction A by the vertical power supply unit F1, the horizontal support frame 114 is also moved in the vertical direction A. Next, the horizontal power supply unit F2 The injection unit 120 is moved in the left-right direction B on the left-right support frame 114 by the power of

  On the other hand, the injection unit 120 is moved in the front-rear direction C toward the target surface. For this purpose, the frame 110 is equipped with a front-rear support frame and a front-rear power supply unit.

  As described above, the ejection unit 120 is positioned in a target surface area where an image print of an inner wall or an outer wall of a building is required by the vertical support frame 112, the horizontal support frame 114, and the front / rear support frame controlled by the controller 150. The desired image is printed on the target surface by ejecting ink along with the movement of the position.

  The image printing process by the ejection unit 120 will be described in detail later with reference to FIGS.

  The ejection of the first ink and the second ink from the first nozzle 122 and the second nozzle 124 of the ejection unit 120 is implemented by a compressed air unit 140 that provides ejection force. A series of injection processes is controlled by the control unit 150.

  The compressed air for providing the ejection force from the compressed air part 140 is removed by the moisture removing unit 160, thereby preventing the ink ejected from the ejection unit 120 from flowing down from the target surface.

  The pressures of the compressed air supplied to the ink storage unit 130 and the ejection unit 120 through the moisture removing unit 160 are adjusted by the first pressure adjusting unit 170 and the second pressure adjusting unit 180. Here, when ejecting the first ink from the first nozzle 122,

  The compressed air whose pressure is adjusted by the second pressure adjusting unit 180 is supplied to the first nozzle 122 from the first ink storage unit 132 provided by the compressed air whose pressure is adjusted by the first pressure adjusting unit 170. The first ink to be ejected is ejected.

  Further, when the second ink is ejected from the second nozzle 124, the compressed air whose pressure is adjusted by the second pressure adjusting unit 180 and the compressed air whose pressure is adjusted by the first pressure adjusting unit 170 are used. The second ink supplied from the provided second ink storage unit 134 to the second nozzle 124 is ejected.

  Meanwhile, the print position guide unit 192 and the bending detection unit 194 are mounted on the frame 110 so as to be movable. The print position guide unit 192 has one image printed on the target surface for at least one section. If the image is divided and printed, the position where image printing corresponding to each section starts to be printed is guided, and the bending sensing unit 194 senses whether or not the object surface is bent.

  Specifically, if the image to be printed on the target surface needs to be divided into a plurality of sections for reasons such as size, the control unit 150 controls this, and the image corresponding to one section is printed. By controlling the print position guide unit 192 so as to guide the print start position of the next section when printing the image of the next section, the continuity of the image between the sections is realized and the accuracy of the overall image printing is improved. Can be improved.

  That is, the control unit 150 controls the print position guide unit 192 so that the print position guide unit 192 matches the print start position for each section of the target surface illustrated on the display (not shown). The section-specific ink ejection start position from the ejection unit 130 is precisely controlled.

  Here, the print position guide 192 is a light source or a mechanical component that emits light, but is not limited thereto.

  On the other hand, in order to grasp 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), an imaging device such as a camera is used for the frame 110. It may be mounted on top.

  The bending sensing unit 194 grasps the bending of the target surface and enables the distance between the print surface and the ejection unit 120 to be adjusted.

  The controller 150 may control the position of the bending sensing unit 194 so as to contact the target surface and detect the bending of the target surface according to the movement distance for the contact, and the bending sensing unit 194 may detect the ejection. The unit 129 may be detachably attached.

  In addition, the control unit 150 may detect whether the target surface is bent based on a time or a distance at which the light irradiated from the bending detection unit 194 is reflected from the target surface and returned. However, in this case, the bending sensing unit 194 is a light source such as an ultrasonic sensor.

  On the other hand, before the ink is ejected by the ejecting unit 120, the bend sensing unit 194 senses the target surface flexed by the control unit 150 in a continuous or non-contact manner in a continuous or non-contact manner. Based on the sensed result, the ejecting unit 120 is controlled to eject ink.

  That is, the control unit 150 controls the longitudinal support frame based on the result sensed by the bending sensing unit 194 to control the position of the ejection unit 120 in the longitudinal direction so that the most ideal ejection distance is obtained. To do.

  Eventually, the controller 150 controls the position movement of the ejection unit 120 based on the result sensed by the bending sensing unit 194 and the print position guide unit 192.

  Hereinafter, an operation procedure of the automatic printing apparatus 100 according to an embodiment of the present invention will be described in detail.

  FIG. 3 is a first flowchart showing an operation procedure of the automatic printing apparatus according to the embodiment of the present invention.

  Referring to FIG. 3, when an image is automatically printed on a target surface that requires 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 or automatically performed using a ring 200 that contacts the ground. Move to the desired position.

  Next, 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 control unit 150 operates the bend detection unit 194 that is mounted on the frame 110 so as to be movable, and detects whether the target surface that needs image printing is bent (S120). For example, if the bending sensing unit 194 is attached to the ejection unit 120, the bending sensing unit 194 senses whether or not the target surface can be bent by moving the ejection unit 120 along the target surface.

  At this time, the control unit 150 controls each power source so as to move the vertical support frame 112, the horizontal support frame 114, and the front / rear support frame to move the position of the bending sensing unit 194. Finally, the ejection unit 120 for ejecting ink is controlled based on the result sensed by the bending sensing unit 194.

  That is, before the ink for printing an image is ejected from the ejection unit 120, the position movement of the ejection unit 120, that is, the position movement of the bending sensing unit 194 determines the degree of bending of the target surface that requires the image printing. As will be understood, information on the bending of the target surface detected by the bending detection 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 is used to control the position movement of the ejection unit 120 that ejects ink by the control unit 150. The injection unit 120 is precisely controlled based on the information.

  Here, the bend sensing of the target surface by the bend sensing unit 194 is performed by controlling the position of the ejecting unit 120 by the control unit 150, that is, the position of the control unit 150 so that the bend sensing unit 194 contacts the target surface. This is realized by a moving distance for contact.

  In addition, the controller 150 may detect whether the target surface is bent based on a time or a distance at which light irradiated from the bend detection unit 194 toward the target surface is reflected from the target surface and returned.

  As described above, before the ink corresponding to at least one of the first nozzle 122 and the second nozzle 124 is ejected into the target surface, the bend detection unit 194 completes the detection of whether the target surface is bent. The controller 150 controls the compressed air unit 140 for ejecting ink by the ejecting unit 120.

  The controller 150 supplies compressed air for providing an ejection force for ejecting 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 be supplied (S130), the moisture removed from the compressed air supplied from the compressed air unit 140 is removed by the moisture removing unit 160 while passing through the moisture removing unit 160 (S140). Accordingly, the ink ejected from at least one of the first nozzle 122 and the second nozzle 124 can be prevented from flowing down from the target surface.

  The compressed air from which moisture has been removed by the moisture removing unit 160 is supplied to the ink storing unit 130 and the ejecting unit 120 (S150). The compressed air supplied to the ink storing unit 130 is the first pressure adjusting unit 170. The pressure of the compressed air supplied to the injection unit 120 is adjusted by the second pressure adjustment unit 180 (S164).

  That is, the control unit 150 controls the flow of the compressed air so that the compressed air that has passed through the moisture removing unit 160 is supplied to the ejection unit 120 and the ink storage unit 130, respectively. Ink is ejected.

  Here, the control unit 150 includes the ejecting unit 120 and the ink so that the pressure of the compressed air adjusted by the second pressure adjusting unit 180 is larger than the pressure of the compressed air adjusted by the first pressure adjusting unit 170. The pressure of the compressed air supplied to each storage unit 130 is controlled.

  When the first ink is ejected through the first nozzle 122 among the first nozzle 122 and the second nozzle 124 provided in the ejection unit 120, the ejection force by which the first ink is ejected from the first nozzle 122 is This is realized by the pressure of the first ink flowing from the first ink storage unit 132 to the first nozzle 122 and the pressure of the compressed air supplied to the first nozzle 122.

  That is, the pressure of the first ink flowing into the first nozzle 122 from the first ink storage unit 132 is compressed by the first pressure adjusting unit 170 supplied to the first ink storage unit 132. When the first ink is supplied to the first nozzle 122 by the air, the first ink is discharged from the first nozzle 122 by the compressed air whose pressure is adjusted by the second pressure adjusting unit 180. Injected onto the target surface (S170).

  On the other hand, when the control unit 150 ejects ink from the ejection unit, whether or not to eject ink corresponding to at least one of the first nozzle 122 and the second nozzle 124 on the target surface is determined based on image characteristics. And a separation distance between at least one of the first nozzle 122 and the second nozzle 124 from which ink is ejected and the target surface is controlled based on characteristics of the target surface.

  The control unit 150 controls the separation distance between the injection unit 120 and the target surface of the first nozzle 122 and the second nozzle 124 simultaneously, that is, based on the characteristics of the target surface.

  Specifically, ink corresponding to at least one of the first nozzle 122 and the second nozzle 124 is ejected onto the target surface within the region of the target surface based on the result sensed by the bending sensing unit 194. The separation distance is controlled.

  Therefore, the ejecting unit 120 is automatically moved in the vertical and horizontal directions and the front and rear direction by the control unit 150 to print a desired image on the target surface.

  On the other hand, the control unit 150 individually controls the first nozzle 122 and the second nozzle 124 according to the type of ink to be ejected. That is, the control unit 150 controls the compressed air whose pressure is adjusted by the second pressure adjustment unit 180. Whether to supply to the first nozzle 122 and the second nozzle 124 individually is controlled, and the compressed air whose pressure is adjusted by the first pressure adjusting unit is supplied to the first ink storing unit and the second ink storing unit. Is controlled individually so that ink is ejected only from the desired nozzles.

  In addition, when the image to be printed on the target surface needs to be divided into a plurality of sections for reasons such as the size, the control unit 150 controls the print position guide unit 192 in step S170 to provide one section. When the image corresponding to is printed, the print start position of the next section is guided when printing the image of the next section, thereby realizing the continuity of the image between sections and improving the accuracy of the overall image print. improves.

  FIG. 4 is a second flowchart showing an operation procedure of the automatic printing apparatus according to the embodiment of the present invention.

  The second flowchart according to FIG. 4 is different from the first flowchart according to FIG. 3 except that the step of detecting whether the object surface is bent by the bending detection unit 194 is performed simultaneously with the step of ejecting ink from the ejection unit 120. Since all the steps are the same, the description other than the steps having differences will be omitted below.

  When power is applied to the automatic printing apparatus 100 (S210), compressed air is supplied from the compressed air unit 140 (S220), and moisture is removed from the supplied compressed air by the moisture removing unit 160 (S230). The pressure of the removed compressed air is adjusted by the first pressure adjusting unit 170 and supplied to the ink storing unit 130 (S242), and the pressure is adjusted by the second pressure adjusting unit 180 and supplied to the ejecting unit 120. (S244).

  Next, the control unit 150 controls the position movement of the ejection unit 120 corresponding to the image to be printed on the target surface, and the ejection unit 120 controlled by the control unit 150 ejects ink onto the target surface (S252). ).

  At this time, in order to precisely control the position of the ejection unit 120, the control unit 150 causes the bend detection unit 194 to detect whether the target surface is bent (S254), but eventually, the automatic printing apparatus 100 according to the present invention. In order to improve the accuracy of ejection while ink is ejected from the ejection unit 120, the ejection operation is performed while sensing the characteristics of the target surface.

  FIG. 5 is a block diagram illustrating a cleaning process of an ejection 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 periodically cleans the ejecting unit 120 to prevent nozzle clogging. A cleaning unit 210 is included.

  The cleaning unit 210 pressure-feeds alcohol, which is a type of cleaning water, to the spray unit 120. The alcohol is pumped to at least one of the first nozzle 122 and the second nozzle 124 of the spray unit 120. At least one of the first nozzle 122 and the second nozzle 124 is washed to print another image or to prevent clogging.

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

  Referring to FIG. 6, when the automatic printing apparatus 100 according to the present invention prints one image and then prints another image, the remaining ink remaining in the ink storage unit 130 in which the ink for printing the image is stored. An adjustment valve 300 is included to allow the ink to be collected by the collection unit 220.

  The adjustment valve 300 adjusts whether or not the compressed air is supplied from the compressed air unit 140 to the ink storage unit 130 and the ejection unit 130. When the residual ink remaining in the ink storage unit 130 is collected, The regulating valve 300 blocks the supply of compressed air from the compressed air unit 140 to the ink storage unit 130 and the ejection unit 120.

  In this case, the compressed air unit 140 does not supply compressed air to the ink storage unit 130 and the ejection unit 120, but allows air to be sucked toward the recovery unit 220. The residual ink flows into the recovery unit 220 through a suction hose communicating with the recovery unit 220.

  In the above description, the configuration and characteristics of the present invention have been described based on the embodiments according to the present invention. However, 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 to which this invention pertains, and thus such changes or modifications fall within the scope of the appended claims.

DESCRIPTION OF SYMBOLS 100: Automatic printing apparatus 110: Frame 120: Ejection part 130: Ink storage part 140: Compressed air part 150: Control part 160: Water | moisture-content removal part 170: 1st pressure adjustment part 180: 2nd pressure adjustment part

Claims (12)

In an automatic printing apparatus that automatically prints the image on a target surface that requires image printing of an inner wall or an outer wall of a building,
Frame,
An injection unit which is mounted on the frame so as to be movable and includes 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 the first ink and the second ink respectively supplied to the first nozzle and the second nozzle;
A compressed air portion that provides an ejection force that causes the first ink and the second ink to be ejected through the first nozzle and the second nozzle, respectively;
Whether or not to eject ink corresponding to at least one of the first nozzle and the second nozzle on the target surface based on the characteristics of the image, and the first ink that is ejected based on the characteristics of the target surface. A control unit for controlling a separation distance between at least one of the one nozzle and the second nozzle and the target surface;
The compression for providing the ejection force in order to prevent ink corresponding to at least one of the first nozzle and the second nozzle from being ejected from the target surface after being ejected from the target surface. A moisture removing unit for removing moisture from the compressed air supplied from the air unit;
A first pressure adjusting unit and a second pressure adjusting 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 ejection unit, respectively.
Including
The automatic printing apparatus that controls the flow of the compressed air so that the compressed air that has passed through the moisture removing unit is supplied to the ejection unit and the ink storage unit, respectively . The controller is
The automatic printing apparatus according to claim 1, wherein a separation distance between the ejection unit and the target surface is controlled based on characteristics of the target surface. A bending sensing unit that is mounted on the frame so as to be movable and senses the degree of bending of the target surface;
The control unit controls the separation distance at which ink corresponding to at least one of the first nozzle and the second nozzle is ejected to the target surface based on a result sensed by the bending sensing unit. The automatic printing apparatus according to claim 1 or 2. The controller is
4. The automatic printing apparatus according to claim 3, wherein the position of the bending sensing unit is controlled so as to contact the target surface, and the degree of bending of the target surface is detected based on a moving distance for the contact. The controller is
The automatic according to claim 3, wherein the degree of bending of the target surface is detected according to a time or a distance at which light irradiated from the bending detection unit toward the target surface is reflected and returned from the target surface. Printing device. The controller is
Before the ink corresponding to at least one of the first nozzle and the second nozzle is ejected onto the target surface, the bending sensing unit is controlled to sense the degree of bending of the target surface. The automatic printing apparatus according to any one of claims 3 to 5. The control unit controls the ejection unit so that the image printed on the target surface is printed for each at least one section,
The automatic according to any one of claims 1 to 6, further comprising a print position guide unit that is mounted on the frame so as to be movable and guides a position at which printing of an image corresponding to each section is started. Printing device. The controller is
The pressure of the compressed air supplied to the ejection unit and the ink storage unit so that the pressure of the compressed air adjusted by the second pressure adjusting unit is larger than the pressure of the compressed air adjusted by the first pressure adjusting unit. The automatic printing apparatus according to claim 1 , wherein the automatic printing apparatus is controlled. The controller is
Individually controlling whether or not the compressed air whose pressure is adjusted by the second pressure adjusting unit is supplied to the first nozzle and the second nozzle;
According to any one of claims 1 to 8 to individually control whether to supply to the first ink reservoir of compressed air by the first pressure by the pressure adjustment unit has been adjusted and the second ink reservoir Automatic printing device. The controller is
When ejecting the first ink from the first nozzle,
The first ink supplied from the first ink storage unit to the first nozzle by the compressed air whose pressure is adjusted by the first pressure adjusting unit by the compressed air whose pressure is adjusted by the second pressure adjusting unit. automatic printing apparatus as claimed in any one of claims 1 9, 1 ink to be ejected. The automatic printing apparatus according to any one of claims 1 to 10 , further comprising a cleaning unit that pumps a cleaning agent to the ejection unit to clean at least one of the first nozzle and the second nozzle. A regulating valve for regulating the supply of compressed air to provide the injection force by the compressed air section;
When the supply of the ejection force is interrupted by the adjustment valve, the compressed air unit collects residual ink remaining in the ink storage unit so that air is sucked toward the recovery unit. automatic printing apparatus as claimed in any one of claims 1 to 11, to be.

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