JP2015058552A - Ink jet recording apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ink jet recording apparatus capable of efficient recording of an image.SOLUTION: In an ink jet recording apparatus, a first opening/closing opens and closes a first charge region by moving a first shield part; a second opening/closing part opens and closes a second charge region by moving a second shied part; and a third opening/closing part opens and closes a middle region by moving a third shield part. The first opening/closing part sets the first charge region in a closed state, in a first case where a recording part and an irradiation part are moved to a first mounting surface region and an active energy-curable ink is irradiated with active energy rays and sets the first charge region in an opened state, in a second case where the recording part and the irradiation part are moved to a second mounting surface region and the active energy-curable ink is irradiated with active energy rays. The second opening/closing part sets the second charge region in an opened state in the first case and sets the second charge region in a closed state in the second case. The third opening/closing part sets the middle region in a closed state in the first case, sets the middle region in a closed state in the second case and sets the middle region in an opened state, in a third case where the recording part and the irradiation part are moved between the first mounting surface region and the second mounting surface region.

Description

  The present invention relates to an inkjet recording apparatus that records an image while moving a recording unit including an inkjet head in a main scanning direction.

  A technique related to an ink jet recording apparatus has been proposed. For example, Patent Document 1 discloses a drawing apparatus. The body of this drawing apparatus supports a rail-shaped head guide member extending in the Y-axis direction horizontally with respect to the floor surface. A carriage is movably attached to the head guide member via a Y-axis drive mechanism, and a head portion for mounting a plurality of ink ejection type print heads is connected to the carriage. In the drawing apparatus, the mounting table is formed wide in the Y-axis direction. The mounting table is divided into ½ regions, and a positioning body is provided in each region. According to this mounting table, two media can be set on the mounting table, and printing drawing can be performed simultaneously. Further, a drawing apparatus having two mounting tables is disclosed.

JP 2006-136867 A

  The ink jet recording apparatus can record an image on a recording medium with high quality. Therefore, the ink jet recording apparatus is used not only for home use but also in the industrial field. The inventor enables a smooth recording operation and improves productivity when producing an image formed product using an inkjet recording apparatus that records an image while moving a recording unit including an inkjet head in the main scanning direction. We examined possible configurations. Various inks are used for image recording. For example, an active energy curable ink may be used. The active energy curable ink is cured by irradiation with active energy rays. Examples of the active energy curable ink include ultraviolet curable ink and electron beam curable ink. The ultraviolet curable ink is cured by irradiation with ultraviolet rays, and the electron beam curable ink is cured by irradiation with electron beams.

  An object of the present invention is to provide an ink jet recording apparatus capable of efficiently recording an image.

  One aspect of the present invention is a first placement surface area for placing a first recording medium loaded from a first loading area, and a second placement surface for placing a second recording medium loaded from a second loading area. A recording unit including an inkjet head on which a nozzle that discharges active energy curable ink is formed, an irradiation unit that irradiates active energy rays, the recording unit, and the irradiation unit. A first moving unit configured to move between the first mounting surface region and the second mounting surface region; and the recording unit and the irradiation unit moved to the first mounting surface region by the first moving unit. And a second moving unit that moves the recording unit and the irradiation unit moved in the main scanning direction by the first moving unit in the main scanning direction, and the first moving unit. Active energy provided in the injection area and irradiated from the irradiation unit A first shielding part that shields the progress of the wire from the first feeding area to the outside of the first placement surface area, and a first opening and closing that moves the first shielding part to open and close the first feeding area And a second shielding part that is provided in the second injection region and shields the progress of the active energy rays irradiated from the irradiation unit from the second injection region to the outside of the second placement surface region, A second opening / closing portion that moves the second shielding portion to open and close the second charging region; and the first placement surface region in a direction in which the recording portion and the irradiation portion move by the first moving portion. Provided in an intermediate region between the second placement surface region and above the surface of the placement portion including the first placement surface region and the second placement surface region; Active energy rays irradiated from the irradiation unit moved to the first placement surface area by the moving unit The intermediate region of the active energy ray irradiated from the irradiation unit that shields the progress from the intermediate region to the second placement surface region and is moved to the second placement surface region by the first moving unit. And a third opening / closing portion that moves the third shielding portion and opens / closes the intermediate area, the first opening / closing The active portion cures to the first recording medium placed on the first placement surface area by moving the recording part and the irradiation part to the first placement surface area by the first moving part. In the first case where the active energy curable ink is ejected and the active energy curable ink landed on the first recording medium is irradiated with the active energy ray, the first input region is closed, and the recording is performed by the first moving unit. And the irradiation unit in the second placement surface area The active energy curable ink is ejected onto the second recording medium that has been moved and placed on the second placement surface area, and the active energy curable ink that has landed on the second recording medium is irradiated with active energy rays. In the second case, the first charging area is opened, and in the first case, the second opening / closing part opens the second charging area, and in the second case, the second charging area. In the first case, the third opening / closing part is in the closed state in the intermediate area, and in the second case, the intermediate area is in the closed state. In the third case where the irradiation unit is moved between the first placement surface area and the second placement surface area, the intermediate area is opened.

  According to this, when recording an image on the first recording medium placed on the first placement surface area, the active energy rays emitted from the irradiation unit when the image is recorded on the first placement area from the first placement area. Progression to the outside of the region and progression from the intermediate region to the second placement surface region side can be blocked. When an image is recorded on the first recording medium placed on the first placement surface area, leakage of active energy rays from the first feeding area and the second feeding area can be prevented. When an image is recorded on the first recording medium placed on the first placement surface area, the second recording medium can be placed on the second placement surface area. When recording an image on the second recording medium placed on the second placement surface area, the active energy rays irradiated from the irradiation unit from the second input area to the outside of the second placement surface area It is possible to block the progress and the progress from the intermediate region to the first placement surface region side. When an image is recorded on the second recording medium placed on the second placement surface area, it is possible to prevent leakage of active energy rays from the first feeding area and the second feeding area. When an image is recorded on the second recording medium placed on the second placement surface area, the first recording medium can be placed on the first placement surface area. The recording unit and the irradiation unit are moved between the first placement surface region and the second placement surface region, and placed on the first recording medium and the second placement surface region placed on the first placement surface region. An image can be recorded on the second recording medium. It is possible to efficiently record an image.

  In the ink jet recording apparatus, in the placement unit, the first placement surface region and the second placement surface region are arranged in a sub-scanning direction orthogonal to the main scanning direction, and the first moving unit is The recording unit and the irradiation unit may be moved in the sub-scanning direction. According to this, the recording unit and the irradiation unit can be smoothly moved between the first placement surface region and the second placement surface region.

  The recording unit is attached to the second moving unit, the second moving unit is attached to the first moving unit in a state where the recording unit is attached, and the first moving unit is attached to the second moving unit. The recording unit may be moved in the sub-scanning direction together with the moving unit. According to this, the recording unit can be smoothly moved in the main scanning direction and the sub-scanning direction. A moving device for moving the recording unit can be reduced in size.

  According to the present invention, an ink jet recording apparatus capable of efficiently recording an image can be obtained.

1 is a perspective view illustrating a schematic configuration of an inkjet recording apparatus with a part thereof omitted. FIG. 1 is a perspective view illustrating a schematic configuration of an inkjet recording apparatus in a standby state. FIG. 6 is a perspective view showing a schematic configuration of an ink jet recording apparatus in which a recording unit and an irradiation unit are moved to a first placement surface area and an image is recorded on a first recording medium placed on the first placement surface area. is there. FIG. 4 is a perspective view showing a schematic configuration of an ink jet recording apparatus in which a recording unit and an irradiation unit are moved to a second placement surface area and an image is recorded on a second recording medium placed on the second placement surface area. is there. It is a flowchart which shows the 1st part of the recording process performed with an inkjet recording device. It is a flowchart which shows the 2nd part of the recording process performed with an inkjet recording device.

  Embodiments for carrying out the present invention will be described with reference to the drawings. The present invention is not limited to the configurations described below, and various configurations can be employed in the same technical idea. For example, some of the configurations shown below may be omitted or replaced with other configurations. Other configurations may be included.

<Inkjet recording apparatus>
The ink jet recording apparatus 10 will be described with reference to FIGS. The inkjet recording apparatus 10 includes a placement unit 20, a recording unit 30, an irradiation unit 40, a first moving unit 50, a second moving unit 70, a first shielding unit 80, a first opening / closing unit 81, A second shielding part 82, a second opening / closing part 83, a third shielding part 84, a third opening / closing part 85, and a control device 90 are provided. The ink jet recording apparatus 10 is a serial type recording apparatus, and moves a recording unit 30 and an irradiation unit 40 in the sub scanning direction while reciprocating in the main scanning direction, and records a predetermined image on the recording medium 12. The sub-scanning direction is a direction orthogonal to the main scanning direction. The movement in the sub-scanning direction is intermittently performed according to the movement in the main scanning direction. Examples of the recording medium 12 include various industrial materials. The industrial material to be the recording medium 12 is, for example, each base material used as an inner wall material, outer wall material, or door of a building, an outer plate of a product installed on a building, or an outer plate of various furniture. Each base material is mentioned. 1, the 1st shielding part 80, the 1st opening / closing part 81, the 2nd shielding part 82, the 2nd opening / closing part 83, the 3rd shielding part 84, and the 3rd opening / closing part 85 are abbreviate | omitting illustration.

  For recording an image, an active energy curable ink of a predetermined color is used. For example, active energy curable inks of black, magenta, yellow, and cyan are used. Examples of the active energy curable ink include ultraviolet curable ink and electron beam curable ink. The active energy curable ink contains a pigment, a reactive monomer and / or a reactive oligomer, a photopolymerization initiator, and further contains an additive as necessary. An active energy curable ink such as an ultraviolet curable ink or an electron beam curable ink has already been put into practical use. In the ink jet recording apparatus 10, a known active energy curable ink is used for image recording. Therefore, the other description regarding the active energy curable ink is omitted. In the present embodiment, an ultraviolet curable ink will be described as an example of the active energy curable ink, and four colors of black, magenta, yellow, and cyan will be described as examples of ink colors used for image recording.

  The placement unit 20 is a table on which the recording medium 12 is placed. The placement unit 20 includes a first placement surface region R1 and a second placement surface region R2 as regions on which the recording medium 12 is placed (see FIG. 3). The first placement surface region R1 is a region disposed on the first side in the sub-scanning direction on the surface of the placement unit 20. The second placement surface region R2 is a region disposed on the second side in the sub-scanning direction on the surface of the placement unit 20. A plurality of suction holes 21 are formed on the surface of the placement portion 20 including the first placement surface region R1 and the second placement surface region R2. The plurality of suction holes 21 are formed in an aligned state in the main scanning direction and the sub-scanning direction. The plurality of suction holes 21 communicate with each other inside the placement unit 20 and are connected to a suction device (not shown). The suction device is configured by, for example, a vacuum pump or a suction blower. In this embodiment, the recording medium 12 placed on the first placement surface area R1 is referred to as “first recording medium 12A”, and the recording medium 12 placed on the second placement surface area R2 is referred to as “second recording medium 12A”. Recording medium 12B ". When the first recording medium 12 </ b> A and the second recording medium 12 </ b> B are not distinguished or collectively referred to as “recording medium 12”.

  The operator loads the first recording medium 12A from the first loading area R3 and places it on the first placement surface area R1 (see FIGS. 4, 1 and 2). 12 A of 1st recording media are mounted in the state positioned in the predetermined position of 1st mounting surface area | region R1. The first recording medium 12A placed on the first placement surface region R1 covers some of the suction holes 21. Accordingly, the first recording medium 12A is sucked and fixed to the first placement surface region R1. The operator loads the second recording medium 12B from the second loading area R4 and places it on the second placement surface area R2 (see FIGS. 3, 1 and 2). The second recording medium 12B is placed in a state of being positioned at a predetermined position in the second placement surface region R2. The second recording medium 12B placed on the second placement surface region R2 covers some of the suction holes 21. Accordingly, the second recording medium 12B is sucked and fixed to the second placement surface region R2. The fixing of the first recording medium 12A in the first placement surface region R1 and the fixation of the second recording medium 12B in the second placement surface region R2 may be performed by a method different from suction. 3 and 4, the recording medium 12 indicated by a two-dot chain line (imaginary line) is loaded from the first loading area R3 or the second loading area R4 and the first placement surface area R1. Or after recording on the recording medium after being placed on each area of the second placement surface area R2 or on each area of the first placement surface area R1 or the second placement surface area R2. The recording medium before being taken out is shown.

  1 to 4 illustrate a mode in which one first recording medium 12A is placed on the first placement surface region R1, and one second recording medium 12B is placed on the second placement surface region R2. However, the number and arrangement of the first recording medium 12A and the second recording medium 12B placed on each area may be different from this. The number and arrangement of the first recording medium 12A and the second recording medium 12B placed in each region are determined by the size of the first recording medium 12A with respect to the first placement surface region R1 and the second recording with respect to the second placement surface region R2. The size is appropriately determined based on the size of the medium 12B and / or image data of images recorded on the first recording medium 12A and the second recording medium 12B, respectively. For example, the plurality of first recording media 12A are placed on the first placement surface region R1 while being aligned in the main scanning direction and / or the sub-scanning direction, and the plurality of second recording media 12B are placed on the second placement surface region R2. You may make it mount in alignment with the main scanning direction and / or a subscanning direction.

  The recording unit 30 includes an inkjet head 31K, an inkjet head 31M, an inkjet head 31Y, an inkjet head 31C, and a carriage 32. The inkjet head 31K is an inkjet head that discharges black ultraviolet curable ink. The inkjet head 31M is an inkjet head that ejects magenta ultraviolet curable ink. The inkjet head 31Y is an inkjet head that discharges yellow ultraviolet curable ink. The ink jet head 31C is an ink jet head that discharges cyan ultraviolet curable ink. Ink jet heads 31K, 31M, 31Y, and 31C are formed with nozzles that discharge ultraviolet curable ink of each color. The inkjet heads 31K, 31M, 31Y, and 31C have the same configuration. The ultraviolet curable ink of each color is stored in an ink tank (not shown) for each color, flows through the ink flow path (not shown) of each color, and is supplied to the corresponding inkjet heads 31K, 31M, 31Y, and 31C. Is done.

  Inkjet heads 31K, 31M, 31Y, and 31C are mounted on the carriage 32. The inkjet heads 31K, 31M, 31Y, and 31C are mounted on the carriage 32 in a state of being adjacent to each other in the main scanning direction. The arrangement order of the inkjet heads 31K, 31M, 31Y, and 31C in the carriage 32 may be different from the order shown in FIGS. These arrangement orders are appropriately determined in consideration of various conditions.

  The irradiation unit 40 irradiates ultraviolet rays as active energy rays. The ultraviolet rays irradiated from the irradiation unit 40 are irradiated to the ultraviolet curable ink of each color landed on the recording medium 12. More specifically, the ultraviolet rays irradiated from the irradiation unit 40 are applied to ink dots made of ultraviolet curable ink of each color landed on the recording medium 12. The ultraviolet curable ink that forms the ink dots of each color is cured by irradiation with ultraviolet rays. The irradiation unit 40 is attached to the carriage 32 in a state adjacent to the inkjet head 31C on the third side in the main scanning direction.

  The first moving unit 50 and the second moving unit 70 constitute a moving device that moves the recording unit 30 and the irradiation unit 40. First, the second moving unit 70 will be described. The second moving unit 70 moves the recording unit 30 and the irradiation unit 40 in the main scanning direction. The second moving unit 70 includes two pulleys 71 and 72, a motor 73, and a timing belt 74. The two pulleys 71 and 72 are provided on both sides in the main scanning direction, respectively. A pulley 71 provided on the third side in the main scanning direction is rotatably supported in a direction corresponding to the main scanning direction via a rotation shaft 77 attached to a support portion 75 via a bearing 76. A pulley 72 provided on the fourth side in the main scanning direction is connected to a rotation shaft of a motor 73 attached to a support portion 78. The pulley 72 and the rotation shaft of the motor 73 are connected directly or via a speed reducer or the like. The motor 73 rotates the pulley 72 in a direction corresponding to the main scanning direction. As the motor 73, a motor capable of controlling the rotation with high accuracy is employed. For example, a servo motor with an encoder is employed. The timing belt 74 is stretched over pulleys 71 and 72 in a state where tension is applied. The recording unit 30 and the irradiation unit 40 are attached to the timing belt 74 via a support unit 79 fixed to the carriage 32.

  When an image is recorded by the ink jet recording apparatus 10 (see FIGS. 3 and 4), the motor 73 reciprocally rotates in the clockwise and counterclockwise directions. As the motor 73 rotates, the pulley 72 reciprocates in both the left and right sides (for the rotation direction of the pulley 72, see “arc-shaped arrow” shown in the vicinity of the pulley 72 in FIG. 1). When the pulley 73 rotates counterclockwise as the motor 73 rotates in a predetermined direction, the timing belt 74 also rotates counterclockwise. The pulley 71 rotates following the timing belt 74 that rotates counterclockwise. Accordingly, the recording unit 30 and the irradiation unit 40 move from the third side in the main scanning direction to the fourth side. When the recording unit 30 and the irradiation unit 40 reach the fourth moving end in the main scanning direction, the rotation direction of the motor 73 is reversed, and the pulley 72 rotates to the right. When the pulley 72 rotates to the right, the timing belt 74 also rotates to the right. The pulley 71 rotates following the timing belt 74 that rotates clockwise. Accordingly, the recording unit 30 and the irradiation unit 40 move from the fourth side in the main scanning direction to the third side. When the recording unit 30 and the irradiation unit 40 reach the third moving end in the main scanning direction, the rotation direction of the motor 73 is reversed again, and the pulley 72 rotates counterclockwise again. The reciprocating movement of the recording unit 30 and the irradiation unit 40 in the main scanning direction by the second moving unit 70 is repeated until the image recording is completed.

  In the inkjet recording apparatus 10 in which the irradiation unit 40 is attached to the third side in the main scanning direction with respect to the recording unit 30, the recording unit 30 and the irradiation unit 40 move from the third side in the main scanning direction to the fourth side. Ink of each color ultraviolet curable ink ejected from the nozzle 40 formed in each of the inkjet heads 31K, 31M, 31Y, and 31C and the ultraviolet rays from the irradiation unit 40 landed on the recording medium 12 is ejected. Irradiate the dots. When the inkjet recording apparatus 10 is configured to discharge ultraviolet curable ink even while the recording unit 30 and the irradiation unit 40 are moving from the fourth side to the third side in the main scanning direction, the irradiation unit 40 has the main scanning direction. Are provided on both sides of the recording unit 30.

  The first moving unit 50 moves the recording unit 30 and the irradiation unit 40 between the first placement surface region R1 and the second placement surface region R2. The recording unit 30 and the irradiation unit 40 are moved by the first moving unit 50 by moving the second moving unit 70 to which the recording unit 30 and the irradiation unit 40 are attached. In the inkjet recording apparatus 10, the first placement surface region R <b> 1 and the second placement surface region R <b> 2 are arranged in the sub-scanning direction in the placement unit 20. It becomes. The first moving unit 50 includes moving mechanism units 51 and 61. With the mounting unit 20 as a reference, the moving mechanism unit 51 is provided on the third side in the main scanning direction, and the moving mechanism unit 61 is provided on the fourth side in the main scanning direction. The moving mechanism parts 51 and 61 have the same configuration. That is, the moving mechanism unit 51 includes a ball screw 52 and a motor 55, and the moving mechanism unit 61 includes a ball screw 62 and a motor 65.

  In the moving mechanism portion 51, a support portion 75 provided on the third side of the second moving portion 70 in the main scanning direction is attached to the nut portion 53 of the ball screw 52. The screw shaft 54 of the ball screw 52 is connected to the rotation shaft of the motor 55. The screw shaft 54 and the rotation shaft of the motor 55 are connected directly or via a speed reducer or the like. The motor 55 rotates the screw shaft 54 in a direction corresponding to the moving direction in which the recording unit 30 and the irradiation unit 40 are moved. As the motor 55, a motor capable of controlling the rotation with high accuracy is employed. For example, a servo motor with an encoder is employed. In the moving mechanism portion 61, a support portion 78 provided on the fourth side of the second moving portion 70 in the main scanning direction is attached to the nut portion 63 of the ball screw 62. The screw shaft 64 of the ball screw 62 is connected to the rotation shaft of the motor 65. The screw shaft 64 and the rotation shaft of the motor 65 are connected directly or via a speed reducer or the like. The motor 65 rotates the screw shaft 64 in a direction corresponding to the moving direction in which the recording unit 30 and the irradiation unit 40 are moved. As the motor 65, similarly to the motor 55, a motor capable of controlling the rotation with high accuracy is employed. For example, a servo motor with an encoder is employed.

  In the first moving unit 50, the motors 55 and 65 are driven in synchronization. The motors 55 and 65 rotate by the same amount in the same direction at the same rotational speed. The screw shafts 54 and 64 rotate by the same amount in the same direction, and the nut portions 53 and 63 move by the same amount in the same direction along the screw shafts 54 and 64, respectively. When an image is recorded by the inkjet recording apparatus 10 in which the irradiation unit 40 is provided only on the third side in the main scanning direction (see FIGS. 3 and 4), the first moving unit 50 moves in the sub-scanning direction. The recording unit 30 and the irradiation unit 40 are intermittently performed in response to the movement from the fourth side to the third side in the main scanning direction.

  The 1st shielding part 80 is provided in 1st injection | throwing-in area | region R3 (refer FIGS. 2-4). The first shielding part 80 is formed of a material capable of suppressing transmission of ultraviolet rays. 2 to 4, the “halftone dot pattern” attached to the first shielding part 80 indicates that the first shielding part 80 is formed of a material capable of suppressing the transmission of ultraviolet rays (FIGS. 2 to 4). The same applies to the “halftone dot pattern” attached to the “second shielding part 82” and the “third shielding part 84”). The 1st shielding part 80 shields the ultraviolet-ray irradiated from the irradiation part 40 which moved to 1st mounting surface area | region R1 by 1st injection | throwing-in area | region R3. The shielding target of the first shielding unit 80 is ultraviolet light that travels from the second side in the sub-scanning direction to the first side and leaks from the first injection region R3 to the outside of the first placement surface region R1. The first opening / closing part 81 moves the first shielding part 80 in a predetermined direction to open / close the first charging area R3. The first opening / closing part 81 is configured by a device such as an air cylinder, for example (see FIGS. 2 to 4). In the present embodiment, the first opening / closing part 81 opens and closes the first input region R3 by moving the first shielding part 80 in the vertical direction. When the first opening / closing part 81 is formed of an air cylinder, the number of air cylinders is appropriately determined in consideration of various conditions.

  The 2nd shielding part 82 is provided in 2nd injection | throwing-in area | region R4 (refer FIGS. 2-4). The 2nd shielding part 82 is formed with the material which can suppress permeation | transmission of an ultraviolet-ray. The 2nd shielding part 82 shields the ultraviolet-ray irradiated from the irradiation part 40 which moved to 2nd mounting surface area | region R2 by 2nd injection | throwing-in area | region R4. The shielding target of the second shielding part 82 is ultraviolet rays that travel in the sub-scanning direction from the first side to the second side and leak from the second injection region R4 to the outside of the second placement surface region R2. The second opening / closing part 83 moves the second shielding part 82 in a predetermined direction to open / close the second charging area R4. The 2nd opening-and-closing part 83 is comprised by apparatuses, such as an air cylinder, for example (refer FIGS. 2-4). In the present embodiment, the second opening / closing part 83 opens and closes the second charging region R4 by moving the second shielding part 82 in the vertical direction. When the second opening / closing part 83 is formed of an air cylinder, the number of air cylinders is appropriately determined in consideration of various conditions.

  The 3rd shielding part 84 is provided in intermediate | middle area | region R5 (refer FIGS. 2-4). The intermediate region R5 is a region between the first placement surface region R1 and the second placement surface region R2 in the sub-scanning direction and above the surface of the placement unit 20 (see FIGS. 1 and 2). . The intermediate region R5 is a region perpendicular to the surface of the mounting portion 20, like the first charging region R3 and the second charging region R4. In the present embodiment, the intermediate region R5 is parallel to the first charging region R3 and the second charging region R4. This is an important area. In the inkjet recording apparatus 10 that includes the placement unit 20 in which the first placement surface region R1 and the second placement surface region R2 are adjacent in the sub-scanning direction, the intermediate region R5 is the first placement surface region R1 in the sub-scanning direction. And a region above the boundary portion between the second placement surface region R2. The 3rd shielding part 84 is formed with the material which can suppress permeation | transmission of an ultraviolet-ray. When the recording unit 30 and the irradiation unit 40 are moved to the first placement surface region R1 by the first moving unit 50, the third shielding unit 84 shields the ultraviolet rays irradiated from the irradiation unit 40 in the intermediate region R5. In this case, the shielding object of the third shielding portion 84 advances in the sub-scanning direction from the first side to the second side, and leaks from the first placement surface region R1 side to the second placement surface region R2 side. UV light. When the recording unit 30 and the irradiation unit 40 are moved to the second placement surface region R2 by the first moving unit 50, the third shielding unit 84 shields the ultraviolet rays irradiated from the irradiation unit 40 in the intermediate region R5. In this case, the shielding target of the third shielding portion 84 advances in the sub-scanning direction from the second side to the first side, and leaks from the second placement surface region R2 side to the first placement surface region R1 side. UV light. The third opening / closing part 85 moves the third shielding part 84 in a predetermined direction to open / close the intermediate region R5. The 3rd opening-and-closing part 85 is comprised by apparatuses, such as an air cylinder, for example (refer FIGS. 2-4). In the present embodiment, the third opening / closing part 85 opens and closes the intermediate region R5 by moving the third shielding part 84 in the vertical direction. When the third opening / closing part 85 is formed of an air cylinder, the number of air cylinders is appropriately determined in consideration of various conditions.

  The control device 90 includes a control unit 91, an operation unit 92, and a display unit 93. The control unit 91 includes, for example, a CPU, a ROM, a RAM, and a storage device. The control unit 91 (CPU) controls the inkjet recording apparatus 10 by executing computer programs for various processes executed by the inkjet recording apparatus 10. The computer program is stored in the storage device. The controller 91 executes a recording process that will be described later. In the recording process, the control unit 91 controls the discharge of each color of ultraviolet curable ink from the nozzles formed on the inkjet heads 31K, 31M, 31Y, and 31C. The ejection of the ultraviolet curable ink of each color by the inkjet heads 31K, 31M, 31Y, and 31C is controlled according to image data corresponding to the image recorded by the recording unit 30. Further, the control unit 91 controls the irradiation of ultraviolet rays from the irradiation unit 40 and the stop thereof. Further, the control unit 91 controls driving of the first moving unit 50, the second moving unit 70, the first opening / closing unit 81, the second opening / closing unit 83, and the third opening / closing unit 85.

  The operation unit 92 is a user interface for inputting a predetermined command to the inkjet recording apparatus 10. The operation unit 92 includes, for example, a keyboard and a mouse. As the operation unit 92, a predetermined operation switch different from the keyboard may be provided. The display unit 93 displays predetermined information.

  The ink jet recording apparatus 10 includes, for example, six detection sensors 94 (not shown in FIG. 1) in addition to the above-described configuration. Of the six detection sensors 94, two detection sensors 94 detect the closing and opening of the first input region R3 accompanying the movement of the first shielding portion 80. The other two detection sensors 94 detect the closing and opening of the second input region R4 accompanying the movement of the second shielding part 82. Further, the other two detection sensors 94 detect the closing and opening of the intermediate region R5 accompanying the movement of the third shielding portion 84. The detection sensor 94 is configured by, for example, a proximity sensor or a photoelectric sensor. The detection sensors 94 detect the first shielding part 80, the second shielding part 82, or the third shielding part 84 at the positions where they are provided. Detection signals from the six detection sensors 94 are input to the control device 90, and the control unit 91 opens and closes the first input region R3, the second input region R4, and the intermediate region R5 according to the input detection signals. Respectively.

<Recording process>
A recording process executed by the inkjet recording apparatus 10 will be described with reference to FIGS. 5 and 6. For example, at least two workers respectively perform the operations of putting the first recording medium 12A into and out of the first placement surface area R1 and putting the second recording medium 12B into and out of the second placement surface area R2. . That is, one of the two workers (hereinafter referred to as “first worker” not shown) moves to the first placement surface region R1 on the first side in the sub-scanning direction with respect to the placement portion 20. The first recording medium 12A is taken in and out. The operation of the operation unit 92 to be described later may be performed by the first worker. In the present embodiment, it is assumed that the first worker operates the operation unit 92. The other one of the two workers (not shown, hereinafter referred to as “second worker”) moves to the second placement surface region R2 on the second side in the sub-scanning direction with respect to the placement portion 20. The second recording medium 12B is taken in and out. The recording process is started when the first worker selects a placement surface area on which an image is recorded via the operation unit 92. The ink jet recording apparatus 10 is in a standby state shown in FIG. 2 as an initial state.

  The controller 91 that has started the recording process determines whether or not a selection command for selecting either the first placement surface region R1 or the second placement surface region R2 has been acquired (S1). When the selection command has not been acquired (S1: No), the control unit 91 repeatedly executes the determination of S1. When the selection command is acquired (S1: Yes), the control unit 91 determines whether the acquired selection command is the first placement surface region R1 or the second placement surface region R2 (S3). . For example, it is assumed that a new first recording medium 12A is placed on the first placement surface area R1, and the first operator operates the operation unit 92 to input a selection command indicating the first placement surface area R1. . In this case, the control unit 91 determines that the first placement surface region R1 has been selected (S3: first placement surface region), and the process proceeds to S5. On the other hand, a new second recording medium 12B is placed on the second placement surface area R2, and the first operator operates the operation unit 92 to input a selection command indicating the second placement surface area R2. . In this case, the control unit 91 determines that the second placement surface area R2 has been selected (S3: second placement surface area), and the process proceeds to S15 in FIG.

  In S5, the control unit 91 controls the movement of the recording unit 30 and the irradiation unit 40 toward the first placement surface region R1 by the first moving unit 50. In the first moving unit 50, the motors 55 and 65 start to rotate. As the motors 55 and 65 rotate, the recording unit 30 and the irradiation unit 40 attached to the second moving unit 70 arranged at the position of the intermediate region R5 in the ink jet recording apparatus 10 in the standby state are the first in the sub-scanning direction. Move to the side. The control unit 91 controls the movement of the recording unit 30 and the irradiation unit 40 to a predetermined position in the main scanning direction by the second moving unit 70. In the second moving unit 70, the timing belt 74 rotates with the rotation of the motor 73, and the recording unit 30 and the irradiation unit 40 move to predetermined positions in the main scanning direction. In this way, the recording unit 30 and the irradiation unit 40 are arranged at positions predetermined as image recording start positions on the first placement surface region R1 side. The control unit 91 detects that the recording unit 30 and the irradiation unit 40 have moved to the above-described recording start position in accordance with signals from predetermined sensors (for example, encoders provided in the motors 55, 65, and 73, respectively) (S7). .

  Next, the controller 91 controls the lowering of the first shielding part 80 by the first opening / closing part 81 and the lowering of the third shielding part 84 by the third opening / closing part 85 (S9). The first opening / closing part 81 lowers the first shielding part 80, and the first input region R3 is changed from the open state to the closed state (see FIG. 3). The third opening / closing part 85 lowers the third shielding part 84, and the intermediate region R5 changes from the open state to the closed state (see FIG. 3). The transition to the closed state of the first input region R3 is a detection signal from the detection sensor 94 provided on the lower side in the vertical direction among the two detection sensors 94 provided corresponding to the first shielding portion 80. Detected according to The transition of the intermediate region R5 to the closed state is detected according to the detection signal from the detection sensor 94 provided on the lower side in the vertical direction among the two detection sensors 94 provided corresponding to the third shielding portion 84. Is done. At this time, the second opening / closing part 83 does not operate, the second shielding part 82 remains raised, and the second charging region R4 is continuously opened (see FIG. 3).

  Thereafter, the control unit 91 controls recording of an image in the recording unit 30 and irradiation of ultraviolet rays from the irradiation unit 40 (see FIG. 3 in S11). In S <b> 11, the control unit 91 controls the reciprocating movement of the recording unit 30 and the irradiation unit 40 in the main scanning direction by the second moving unit 70. At that time, the control unit 91 controls the ejection of the ultraviolet curable ink of each color corresponding to the image data and the irradiation of the ultraviolet rays from the irradiation unit 40. Further, the control unit 91 controls intermittent movement of the recording unit 30 and the irradiation unit 40 in the sub-scanning direction by the first moving unit 50. The ultraviolet curable inks of the respective colors ejected from the nozzles formed on the inkjet heads 31K, 31M, 31Y, and 31C land on the first recording medium 12A. Ultraviolet rays are irradiated to the ink dots of the landed ultraviolet curable inks of the respective colors, and accordingly, the ultraviolet curable inks forming the ink dots are cured. In this way, an image corresponding to the image data is recorded on the first recording medium 12A. The control unit 91 continues the above-described controls for all parts of the image data to be processed until the ejection of the ultraviolet curable ink is completed.

  During the execution of S11, the second operator loads the second recording medium 12B from the second loading area R4 and places it on the second placement surface area R2 (see FIG. 3). After S11 ends, the control unit 91 controls the rise of the first shielding unit 80 by the first opening / closing unit 81 and the raising of the third shielding unit 84 by the third opening / closing unit 85 (S13). The 1st opening-and-closing part 81 raises the 1st shielding part 80, and 1st throwing area | region R3 changes from a closed state to an open state. The 3rd opening-and-closing part 85 raises the 3rd shielding part 84, and intermediate region R5 will be in an open state from a closed state. The transition to the open state of the first input region R3 follows the detection signal from the detection sensor 94 provided on the upper side in the vertical direction among the two detection sensors 94 provided corresponding to the first shielding part 80. Detected. The transition to the open state of the intermediate region R5 is detected according to the detection signal from the detection sensor 94 provided on the upper side in the vertical direction among the two detection sensors 94 provided corresponding to the third shielding portion 84. The At this time, the second opening / closing part 83 does not operate, the second shielding part 82 remains raised, and the second charging region R4 continues to remain open. After executing S13, the controller 91 proceeds to S25.

  In S15 of FIG. 6, the control unit 91 controls the movement of the recording unit 30 and the irradiation unit 40 toward the second placement surface region R2 by the first moving unit 50. In the first moving unit 50, the motors 55 and 65 start to rotate. As the motors 55 and 65 rotate, the recording unit 30 and the irradiation unit 40 attached to the second moving unit 70 disposed at the position of the intermediate region R5 in the inkjet recording apparatus 10 in the standby state are second in the sub-scanning direction. Move to the side. The control unit 91 controls the movement of the recording unit 30 and the irradiation unit 40 to a predetermined position in the main scanning direction by the second moving unit 70. In the second moving unit 70, the timing belt 74 rotates with the rotation of the motor 73, and the recording unit 30 and the irradiation unit 40 move to predetermined positions in the main scanning direction. In this manner, the recording unit 30 and the irradiation unit 40 are arranged at positions predetermined as image recording start positions on the second placement surface area R2 side. The control unit 91 detects that the recording unit 30 and the irradiation unit 40 have moved to the above-described recording start position in accordance with signals from predetermined sensors (for example, encoders provided in the motors 55, 65, and 73, respectively) (S17). .

  Next, the controller 91 controls the lowering of the second shielding part 82 by the second opening / closing part 83 and the lowering of the third shielding part 84 by the third opening / closing part 85 (S19). The 2nd opening-and-closing part 83 lowers the 2nd shielding part 82, and 2nd throwing area | region R4 changes from an open state to a closed state (refer FIG. 4). The third opening / closing part 85 lowers the third shielding part 84, and the intermediate region R5 changes from the open state to the closed state (see FIG. 4). The transition to the closed state of the second input region R4 is a detection signal from the detection sensor 94 provided on the lower side in the vertical direction among the two detection sensors 94 provided corresponding to the second shielding part 82. Detected according to The transition of the intermediate region R5 to the closed state is detected in the same manner as in S9 of FIG. At this time, the first opening / closing part 81 does not operate, the first shielding part 80 is kept raised, and the first input region R3 is continuously opened (see FIG. 4).

  Thereafter, the control unit 91 controls image recording in the recording unit 30 and ultraviolet irradiation from the irradiation unit 40 (see FIG. 4 in S21). In S <b> 21, the control unit 91 controls the reciprocation of the recording unit 30 and the irradiation unit 40 in the main scanning direction by the second moving unit 70. At that time, the control unit 91 controls the ejection of the ultraviolet curable ink of each color corresponding to the image data and the irradiation of the ultraviolet rays from the irradiation unit 40. Further, the control unit 91 controls intermittent movement of the recording unit 30 and the irradiation unit 40 in the sub-scanning direction by the first moving unit 50. The ultraviolet curable ink of each color discharged from the nozzles formed on the inkjet heads 31K, 31M, 31Y, and 31C land on the second recording medium 12B. Ultraviolet rays are irradiated to the ink dots of the landed ultraviolet curable inks of the respective colors, and accordingly, the ultraviolet curable inks forming the ink dots are cured. In this way, an image corresponding to the image data is recorded on the second recording medium 12B. The control unit 91 continues the above-described controls for all parts of the image data to be processed until the ejection of the ultraviolet curable ink is completed.

  During the execution of S21, the first operator loads the first recording medium 12A from the first loading area R3 and places it on the first placement surface area R1 (see FIG. 4). After S21 ends, the control unit 91 controls the rise of the second shielding unit 82 by the second opening / closing unit 83 and the raising of the third shielding unit 84 by the third opening / closing unit 85 (S23). The 2nd opening-and-closing part 83 raises the 2nd shielding part 82, and 2nd throwing area | region R4 changes from a closed state to an open state. The 3rd opening-and-closing part 85 raises the 3rd shielding part 84, and intermediate region R5 will be in an open state from a closed state. The transition to the open state of the second input region R4 follows the detection signal from the detection sensor 94 provided on the upper side in the vertical direction among the two detection sensors 94 provided corresponding to the second shielding portion 82. Detected. The transition to the open state of the intermediate region R5 is detected in the same manner as in S13 of FIG. At this time, the first opening / closing part 81 does not operate, the first shielding part 80 remains raised, and the first input region R3 continues to be opened. After executing S23, the controller 91 shifts the process to S25 of FIG.

  In S25, the control unit 91 controls the movement of the recording unit 30 and the irradiation unit 40 to the standby position. In the second moving unit 70, the motor 73 starts to rotate. The timing belt 74 rotates with the rotation of the motor 73, and the recording unit 30 and the irradiation unit 40 move to a predetermined position on the third side in the main scanning direction corresponding to the standby position. The control unit 91 detects that the recording unit 30 and the irradiation unit 40 have moved to the positions described above in accordance with a signal from a predetermined sensor (for example, an encoder provided in the motor 73). When S25 is performed after execution of S13, in the first moving unit 50, the motors 55 and 65 start to rotate, and the recording unit located in the first placement surface region R1 as the motors 55 and 65 rotate. 30 and the irradiation unit 40 move to the position of the intermediate region R5 toward the second side in the sub-scanning direction. On the other hand, when S25 is performed after the execution of S23, in the first moving unit 50, the motors 55 and 65 start to rotate, and are within the second placement surface region R2 as the motors 55 and 65 rotate. The recording unit 30 and the irradiation unit 40 move to the position of the intermediate region R5 toward the first side in the sub-scanning direction. The control unit 91 detects that the recording unit 30 and the irradiation unit 40 have moved to the position of the intermediate region R5 according to signals from predetermined sensors (for example, encoders provided in the motors 55 and 65, respectively). By executing S13 or S23 and S25, the inkjet recording apparatus 10 enters a standby state (see FIG. 2).

  Subsequently, the control unit 91 determines whether or not an end command indicating the end of the recording process has been acquired (S27). The end command is input by the first operator operating the operation unit 92. When the end command has not been acquired (S27: No), the control unit 91 returns the process to S1, and executes the processes after S1 in the same manner as described above. When the end command is acquired (S27: Yes), the control unit 91 ends the recording process.

<Effect of this embodiment>
According to this embodiment, the following effects can be obtained.

  (1) The placement unit 20 is provided with a first placement surface region R1 and a second placement surface region R2, and the first moving unit 50 moves the recording unit 30 and the irradiation unit 40 between the first placement surface region R1 and the second placement surface region R1. It was decided to move between the placement surface regions R2 (see FIGS. 2 to 4). Then, the recording unit 30 and the irradiation unit 40 are intermittently moved in the sub-scanning direction by the first moving unit 50 while being reciprocated in the main scanning direction by the second moving unit 70, and placed on the first placement surface region R1. Images are recorded on the first recording medium 12A and the second recording medium 12B placed on the second placement surface area R2 (see S11 in FIG. 5 and S21 in FIG. 6). The moving device that moves the recording unit 30 and the irradiation unit 40 is configured by attaching the second moving unit 70 to which the recording unit 30 and the irradiation unit 40 are attached to the first moving unit 50 (FIGS. 1 to 4). reference).

  Therefore, the recording unit 30 and the irradiation unit 40 can be smoothly moved between the first placement surface region R1 and the second placement surface region R2, and the image can be recorded efficiently. The moving device that moves the recording unit 30 and the irradiation unit 40 can be downsized. By arranging the first placement surface region R1 and the second placement surface region R2 in the sub-scanning direction, the movement between the first placement surface region R1 and the second placement surface region R2 and the time of image recording are performed. The first moving unit 50 can perform intermittent movement in the sub-scanning direction. Miniaturization of the inkjet recording apparatus 10 can be realized.

  (2) When the recording unit 30 and the irradiation unit 40 are moved to the first placement surface region R1 and an image is recorded on the first recording medium 12A placed on the first placement surface region R1 (FIG. 5). S3: first mounting surface area, see S5, S11), the first opening / closing part 81 lowers the first shielding part 80, the third opening / closing part 85 lowers the third shielding part 84, and the first input area R3 and the intermediate region R5 are respectively closed (see S9 in FIGS. 3 and 5). At that time, the second opening / closing part 83 does not operate, the second shielding part 82 remains raised, and the second input region R4 is continuously opened (see FIG. 3). Therefore, when the image is recorded on the first recording medium 12A placed on the first placement surface region R1, the ultraviolet light irradiated from the irradiation unit 40 is changed from the first input region R3 to the first placement surface region. The progression of R1 to the outside and the progression from the intermediate region R5 to the second placement surface region R2 can be blocked. When an image is recorded on the first recording medium 12A placed on the first placement surface area R1, leakage of ultraviolet rays from the first introduction area R3 and the second introduction area R4 can be prevented. The first worker on the first side in the sub-scanning direction is protected from ultraviolet rays by the first shielding portion 80, and the second worker on the second side in the sub-scanning direction is protected from ultraviolet rays by the third shielding portion 84. Can do. When an image is recorded on the first recording medium 12A placed on the first placement surface region R1, the second recording medium 12B can be placed on the second placement surface region R2.

  When the recording unit 30 and the irradiation unit 40 are moved to the second placement surface region R2 and an image is recorded on the second recording medium 12B placed on the second placement surface region R2 (S3 in FIG. 5: The second placement surface area, see S15 and S21 in FIG. 6), the second opening / closing part 83 lowers the second shielding part 82, the third opening / closing part 85 lowers the third shielding part 84, and the second charging area. R4 and the intermediate region R5 are closed (see S19 in FIGS. 4 and 6). At that time, the first opening / closing part 81 does not operate, the first shielding part 80 is kept raised, and the first charging region R3 is continuously opened (see FIG. 4). Therefore, when the image is recorded on the second recording medium 12B placed on the second placement surface region R2, the ultraviolet light emitted from the irradiation unit 40 when the image is recorded on the second placement surface region R4 to the second placement surface region. Progression of R2 to the outside and progression from the intermediate region R5 to the first placement surface region R1 can be blocked. When an image is recorded on the second recording medium 12B placed on the second placement surface area R2, it is possible to prevent leakage of ultraviolet rays from the first input area R3 and the second input area R4. The second worker on the second side in the sub-scanning direction is protected from ultraviolet rays by the second shielding portion 82, and the first worker on the first side in the sub-scanning direction is protected from ultraviolet rays by the third shielding portion 84. Can do. When an image is recorded on the second recording medium 12B placed on the second placement surface area R2, the first recording medium 12A can be placed on the first placement surface area R1. The image recording on the first recording medium 12A placed on the first placement surface area R1 and the image recording on the second recording medium 12B placed on the second placement surface area R2 are repeated alternately. Can be done.

<Modification>
This embodiment can also be performed as follows. Some configurations of the modifications shown below can be appropriately combined and employed. Effects similar to those described above can also be obtained by an ink jet recording apparatus employing the following configuration. Hereinafter, points different from the above will be described, and description of similar points will be omitted as appropriate.

  (1) In the above, the ultraviolet curable ink which is one of the active energy curable inks has been described as an example. For image recording, an electron beam curable ink may be used. When the electron beam curable ink is used, the irradiation unit 40 irradiates an electron beam as an active energy ray. The 1st shielding part 80, the 2nd shielding part 82, and the 3rd shielding part 84 are formed with the material which can suppress transmission of an electron beam. Which ink is to be used for image recording may be appropriately determined in consideration of the environment in which the image formation formed by recording the image on the recording medium 12 is installed or the use of the image formation. .

  (2) In the above description, the control device 90 is provided on the first side in the sub-scanning direction, and the first operator on the first side in the sub-scanning direction operates the operation unit 92 to input the selection command and the end command. (See S1, S27: Yes in FIG. 5). An operation switch connected to the control device 90 may be provided on the second side in the sub-scanning direction so that the second operator can also input a selection command and / or an end command. The operation switch provided on the second side in the sub-scanning direction constitutes the operation unit 92.

  (3) In the above, the moving direction of the first shielding part 80 by the first opening / closing part 81, the moving direction of the second shielding part 82 by the second opening / closing part 83, and the third shielding part 84 by the third opening / closing part 85. The configuration in which the moving direction is the vertical direction has been described as an example (see FIGS. 2 to 4). The opening and closing of the first input region R3 by the first opening / closing unit may be performed by moving the first shielding unit 80 in the horizontal direction. The opening and closing of the second input region R4 by the second opening / closing part may be performed by moving the second shielding part 82 in the horizontal direction. The opening / closing of the intermediate region R5 by the third opening / closing portion may be performed by moving the third shielding portion 84 in the horizontal direction. In which direction the first shielding part 80, the second shielding part 82, and the third shielding part 84 are moved to open and close each region is appropriately determined in consideration of various conditions.

  (4) In the above description, the inkjet recording apparatus 10 including the placement unit 20 in which the first placement surface region R1 and the second placement surface region R2 are disposed in the sub-scanning direction has been described as an example (see FIGS. 1 to 4). ). The placement unit may have a configuration in which the first placement surface area and the second placement surface area are arranged in the main scanning direction. In this case, when an image is recorded on the first recording medium placed on the first placement surface area, the recording unit and the irradiation unit are moved in the main scanning direction corresponding to the first recording medium, and the second placement medium is moved. When an image is recorded on the second recording medium placed on the surface area, a moving unit that moves the recording unit and the irradiation unit in the main scanning direction corresponding to the second recording medium (based on the above, the “second moving unit” 70 ”) includes a moving unit (corresponding to“ first moving unit 50 ”based on the above) that moves the recording unit and the irradiation unit between the first mounting surface region and the second mounting surface region. . That is, the movement in the main scanning direction at the time of image recording and the movement between the first placement surface area and the second placement surface area are a single movement section (hereinafter referred to as “third movement section” in terms of hardware). ").

  The third moving part includes the same parts as the second moving part 70 described above, and has the same configuration as this. Therefore, the description regarding the third moving unit is omitted. An inkjet recording apparatus including a placement unit in which the first placement surface region and the second placement surface region are arranged in the main scanning direction and a third moving unit is further sub-scanned in the recording unit and the irradiation unit during image recording. A fourth moving unit that intermittently moves in the direction is provided. The fourth moving unit includes the same units as the first moving unit 50 and has the same configuration as this. Therefore, the description regarding the fourth moving unit is omitted. As in the case of the second moving unit 70 described above, a recording unit and an irradiation unit are attached to the third moving unit via a support unit fixed to the carriage. The third moving unit is attached to the fourth moving unit as in the case of the first moving unit 50 and the second moving unit 70 described above. The fourth moving unit moves the recording unit and the irradiation unit in the sub-scanning direction together with the third moving unit. In the ink jet recording apparatus including the first placement surface area and the second placement surface area in the main scanning direction, the third movement section, and the fourth movement section, the first placement surface area And the second placement surface area, and an intermediate area that is above the surface of the placement section is an area along the sub-scanning direction. Therefore, the third shielding portion that shields such an intermediate region is provided along the sub-scanning direction. The third opening / closing part is provided corresponding to the third shielding part.

  (5) In the above description, the inkjet recording apparatus 10 includes the placement unit 20 in which the first placement surface region R1 and the second placement surface region R2 are adjacent in the sub-scanning direction, and the first placement surface region in the sub-scanning direction. The configuration in which the third shielding portion 84 provided in the intermediate region R5 above the boundary portion between the R1 and the second placement surface region R2 is moved by the third opening / closing portion 85 and the intermediate region R5 is opened and closed has been described as an example ( 2 to 4). A region in the sub-scanning direction (hereinafter referred to as “standby surface region”) in which the recording unit and the irradiation unit are arranged in the standby inkjet recording apparatus between the first placement surface region and the second placement surface region in the sub-scanning direction. ”), The third shielding part may be constituted by two shielding members, and the third opening / closing part may be constituted by two sets of devices corresponding to the two shielding members, respectively. Each device constituting the third opening / closing part is constituted by, for example, two air cylinders as described above. The arrangement of the recording unit and the irradiation unit in the standby state is the same as that in FIG.

  In this case, one of the two shielding members serving as the third shielding portion is the first placement on the first side in the sub-scanning direction with respect to the recording portion and the irradiation portion in the standby state. It is provided in a region above the boundary portion between the surface region and the standby surface region (hereinafter referred to as “first intermediate region”). One device of the third opening / closing portions by the two sets of devices moves the shielding member provided in the first intermediate region to open and close the first intermediate region. The other one of the two shielding members as the third shielding portion is the second placement surface that is on the second side in the sub-scanning direction with respect to the recording portion and the irradiation portion in the standby state. It is provided in a region above the boundary between the region and the standby surface region (hereinafter referred to as “second intermediate region”). The other one of the third opening / closing portions of the two sets of devices moves the shielding member provided in the second intermediate region to open and close the second intermediate region.

  When the inkjet recording apparatus is in a standby state, the two shielding members constituting the third shielding part are raised by the two sets of apparatuses constituting the third opening / closing part, and the first intermediate region and the first The two intermediate areas are both open. In S9 of FIG. 5, one of the two shielding members is lowered, and in S13 of FIG. 5, the shielding member lowered in S9 is raised. For example, in S9 of FIG. 5, the shielding member provided in the second intermediate region is lowered, and in S13 of FIG. 5, the shielding member is raised. In S19 of FIG. 6, of the two shielding members, a shielding member different from S9 of FIG. 5 is lowered, and in S23 of FIG. 6, the shielding member lowered in S19 is raised. For example, in S19 of FIG. 6, the shielding member provided in the first intermediate region is lowered, and in S23 of FIG. 6, this shielding member is raised.

DESCRIPTION OF SYMBOLS 10 Inkjet recording device 12 Recording medium 12A First recording medium 12B Second recording medium 20 Placement part 21 Suction hole 30 Recording part 31K, 31M, 31Y, 31C Inkjet head 32 Carriage 40 Irradiation part 50 First movement part 51, 61 Movement Mechanism part 52, 62 Ball screw 53, 63 Nut part 54, 64 Screw shaft 55, 65 Motor 70 Second moving part 71, 72 Pulley 73 Motor 74 Timing belt 75, 78, 79 Support part 76 Bearing 77 Rotary shaft 80 First Shielding part 81 First opening / closing part 82 Second shielding part 83 Second opening / closing part 84 Third shielding part 85 Third opening / closing part 90 Control device 91 Control part 92 Operation part 93 Display part 94 Detection sensor R1 First placement surface area R2 Second loading surface area R3 First charging area R4 Second charging area R5 Intermediate area

Claims (3)

A placement including a first placement surface area for placing the first recording medium placed from the first placement area, and a second placement surface area for placing the second recording medium placed from the second placement area. And
A recording unit including an inkjet head in which nozzles for discharging active energy curable ink are formed;
An irradiation unit for irradiating active energy rays;
A first moving unit that moves the recording unit and the irradiation unit between the first placement surface region and the second placement surface region;
The recording unit moved to the first placement surface area by the first movement unit and the irradiation unit moved in the main scanning direction, and the recording moved to the second placement surface area by the first movement unit A second moving unit that moves the unit and the irradiation unit in the main scanning direction;
A first shielding portion that is provided in the first throwing region and shields the progress of the active energy rays irradiated from the irradiation unit from the first throwing region to the outside of the first placement surface region;
A first opening / closing part for moving the first shielding part and opening / closing the first charging area;
A second shielding part that is provided in the second injection region and shields the progress of the active energy rays irradiated from the irradiation unit from the second injection region to the outside of the second placement surface region;
A second opening / closing part for moving the second shielding part and opening / closing the second charging area;
The first placement surface region and the first placement surface region between the first placement surface region and the second placement surface region in a direction in which the recording unit and the irradiation unit move by the first moving unit. Active energy rays irradiated from the irradiation unit provided in the intermediate region above the surface of the mounting unit including the two mounting surface regions and moved to the first mounting surface region by the first moving unit The middle of the active energy rays irradiated from the irradiation unit moved to the second mounting surface region by the first moving unit is shielded from traveling from the intermediate region to the second mounting surface region side A third shielding portion that shields the progression from the region toward the first placement surface region;
A third opening / closing part that moves the third shielding part and opens / closes the intermediate region,
The first opening / closing part is
The recording unit and the irradiation unit are moved to the first placement surface region by the first moving unit, and active energy curable ink is applied to the first recording medium placed on the first placement surface region. In the first case where the active energy curable ink that is ejected and landed on the first recording medium is irradiated with active energy rays, the first input region is in a closed state,
The recording unit and the irradiation unit are moved to the second placement surface region by the first moving unit, and active energy curable ink is applied to the second recording medium placed on the second placement surface region. In the second case where the active energy curable ink that is ejected and landed on the second recording medium is irradiated with active energy rays, the first input region is in an open state,
The second opening / closing part is
In the first case, the second charging area is opened,
In the second case, the second input area is closed,
The third opening / closing part is
In the first case, the intermediate region is closed,
In the second case, the intermediate region is closed,
In the third case where the recording unit and the irradiation unit are moved between the first placement surface region and the second placement surface region by the first moving unit, the intermediate region is opened. Inkjet recording apparatus. In the mounting section, the first placement surface area and the second placement surface area are arranged in a sub-scanning direction orthogonal to the main scanning direction,
The inkjet recording apparatus according to claim 1, wherein the first moving unit moves the recording unit and the irradiation unit in the sub-scanning direction. The recording unit is attached to the second moving unit,
The second moving part is attached to the first moving part in a state where the recording part is attached,
The inkjet recording apparatus according to claim 2, wherein the first moving unit moves the recording unit in the sub-scanning direction together with the second moving unit.

Images