JP2014210364A - Liquid discharge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid discharge device, in which the quantity of ink mist to reach a suction force generating part for sucking a recording medium to be recorded in an ink jet printing method by a table part is reduced.SOLUTION: A liquid discharge device comprises: a table part 45, in which a recording medium is adsorbed by an adsorption face formed with suction holes; a suction passage for connecting a suction blower 7 to generate a suction force and the table part 45; and a recording processing part for discharging liquid droplets to the recording medium adsorbed by the adsorption face. The suction passage includes a suction branch pipe 61 connected to the table part 45, and a structural member 47 connected to the suction branch 61 and having a larger diameter than that of the suction branch pipe 61.

Description

  The present invention relates to a liquid ejection apparatus that performs recording by an inkjet method on a recording medium adsorbed by a negative pressure suction force.

  Conventionally, a table on which roll paper is adsorbed on an adsorption surface in which a plurality of holes are formed, an air control unit that applies a negative pressure suction force to the plurality of holes so that the roll paper is adsorbed on the adsorption surface, and a table There is known an ink jet printer that includes a communication pipe that connects an air controller and a printing unit that performs recording on an adsorbed roll paper by an ink jet method (for example, see Patent Document 1).

JP 2011-148217 A

  By the way, in a conventional inkjet printer (liquid ejection device), when a roll paper (recording medium) having a size smaller than the suction surface of the table is sucked, there are holes (suction holes) that are not blocked by the roll paper. Will do. In this case, the ink mist generated in the recording processing unit may reach the air control unit (suction force generation unit) through an unblocked hole. The air control unit is provided with a filter that adsorbs ink mist. However, if the amount of ink mist that reaches the air control unit is large, the frequency of replacement of the filter becomes high.

  It is an object of the present invention to provide a liquid ejection apparatus that reduces the amount of ink mist that reaches a suction force generation unit for adsorbing a recording medium recorded by an inkjet method to a table unit.

  The liquid ejection device according to the present invention includes a table portion on which a medium is adsorbed on a suction surface in which a suction hole is formed, a suction flow path connecting the suction force generation portion that generates suction force and the table portion, and a suction surface. A liquid discharge section that discharges liquid to the adsorbed medium, the suction flow path is connected to the table section, the first flow path is connected to the first flow path, and more than the first flow path A second flow path having a large diameter.

  According to this configuration, the suction flow path includes the first flow path and the second flow path connected to the first flow path, so that the airflow in the suction flow path is second from the first flow path. Decelerate when it reaches the flow path. For this reason, even if the ink mist generated in the recording processing section enters the suction flow path through the suction hole, the ink mist falls in the second flow path where the airflow is decelerated. Therefore, the amount of ink mist that reaches the suction force generating portion from the second flow path can be further reduced.

  In this case, it is preferable that a tubular support member is provided, a base portion that supports the table portion is further provided, and the second flow path is constituted by the support member.

  According to this structure, it is not necessary to provide the pipe | tube for comprising a 2nd flow path separately from a base part by utilizing the supporting member which comprises a base part as a 2nd flow path. For this reason, there is no restriction on the piping space for the second flow path, and the total number of parts can be reduced.

  In this case, the electrical equipment box that can accommodate the suction force generator is further provided, the suction flow path further includes a connection pipe that connects the support member and the electrical equipment box, the electrical equipment box is grounded, and the electrical equipment box, It is preferable that the support member and the connecting pipe have conductivity.

Static electricity is likely to be generated in the table portion when the recording medium is installed or removed. When static electricity generated in the table unit is discharged to the recording processing unit, there is a possibility that the recording processing unit may be damaged, and therefore it is preferable to ground the table unit. In order to ensure the grounding of the table part, it is conceivable to connect a grounding wire to the table part. However, in order to connect the ground wire to the table part (for example, steel material), it is necessary to take a technique such as omitting the painting of the connection part and applying conductive plating to the joint part. The former is rust, the latter is Cost increase is an issue.
On the other hand, according to this structure, the supporting member which comprises a table part is electrically connected to the earthed electrical equipment box via the connection pipe. For this reason, it is possible to ensure the grounding of the table part by using the connection pipe constituting the suction channel without connecting the grounding wire to the table part.

  In this case, an operation unit that is provided at one end in the longitudinal direction of the table unit and that receives an input operation by an operator is further provided, and the electrical box is provided at the other end in the longitudinal direction of the table unit. It is preferable.

  According to this configuration, the electrical box is provided apart from the operation unit where the operator is located. For this reason, it can prevent that an operator touches an electrical equipment box unnecessarily. Further, the suction force generation unit housed in the electrical box is also provided apart from the operation unit where the operator is located. For this reason, the noise level of the suction force generation unit felt by the operator can be reduced.

  In this case, it is preferable that the base part is configured to be movable, and the electrical box is supported by the base part.

  According to this structure, when an operator moves a base part, an electrical equipment box will also move with a base part. For this reason, an operator does not need to move an electrical equipment box separately from a base part.

  In this case, the table section is divided into a first section to which the third flow path that is the first flow path is connected and a second section to which the fourth flow path that is the first flow path is connected. The suction flow path includes a first support member that is a support member connected to the third flow path, a second support member that is a support member connected to the fourth flow path, and the first support member and the second support. An intermediate flow path for connecting the member, and the intermediate flow path is provided with a switching valve for switching the second section and the suction force generation unit between a communication state and a non-communication state. preferable.

When the size of the recording medium is smaller than the suction surface, it is necessary to stretch the suction surface around the recording medium with a film material or the like in order to prevent air leakage from the suction holes around the recording medium.
In this regard, according to the present configuration, when the recording medium is not placed in the second section, the switching section is used to place the second section in a state of non-communication with the suction force generation unit, and is formed on the table of the second section. By setting the suction hole so that the negative suction force does not act on the suction hole, it is possible to save time and labor for scoring the suction surface in the second section.

1 is a perspective view of a liquid ejection apparatus according to an embodiment of the present invention. 6 is a perspective view of a recording processing unit in the liquid ejection apparatus. FIG. It is a front view of a recording processing part. It is sectional drawing which looked around the Y-axis moving part in the liquid discharge apparatus from back. It is a partial exploded perspective view of the support stage in a liquid discharge apparatus. It is the perspective view which looked at the support stage from another angle. It is sectional drawing of the table part in a support stage. It is a figure which shows the cross section of the structural profile which comprises a support stage, and the suction branch pipe connected to this.

  Hereinafter, a liquid ejection apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings. This liquid ejecting apparatus records a desired image on a recording medium by ejecting ultraviolet curable ink (UV ink) by an inkjet method. The recording medium is assumed to have various thicknesses such as a sign / display board. In the following description, the longitudinal direction (front-rear direction) of the liquid ejection device in the horizontal plane is defined as the Y-axis direction, and the direction (left-right direction) orthogonal to the Y-axis direction in the horizontal plane is defined as the X-axis direction. (Vertical direction) is defined as the Z-axis direction.

  As shown in FIG. 1, a liquid ejection apparatus 1 includes a support stage 2 that sucks and sets a recording medium placed on the upper surface, and a recording that extends in the X-axis direction and performs recording on the set recording medium. A processing unit 3 and a Y-axis moving unit 4 (see FIG. 4) provided on the back side of the support stage 2 and moving the recording processing unit 3 in the Y-axis direction with respect to the support stage 2 are provided. Furthermore, the liquid ejection apparatus 1 is provided at the operation portion 5 provided at one end portion (front end portion) in the longitudinal direction of the support stage 2 and at the other end portion (rear end portion) in the longitudinal direction of the support stage 2. And the suction blower 7 (see FIG. 6) accommodated in the electrical box 6. FIG. 1 shows a state where the recording processing unit 3 has moved to the rear end of the liquid ejection apparatus 1.

  The liquid ejection apparatus 1 is a so-called flat bed type that performs recording by moving an inkjet head 16 (see FIG. 2) mounted on a recording processing unit 3 with respect to a recording medium that is suction-set on a support stage 2. is there.

  The four legs 8 constituting the support stage 2 are each provided with casters 9 so that the operator can easily move the support stage 2 (liquid ejecting apparatus 1). The operation unit 5 has an operation panel 10 that accepts an input operation by an operator, and the operator usually performs an operation in the vicinity of the operation unit 5. On the operation panel 10, various operation buttons 11, a suction switching lever 12, which will be described later, and the like are arranged. An ink supply unit 13 that supplies ultraviolet curable ink to the inkjet head 16 is housed at the right end of the recording processing unit 3.

  2 and 3, the recording processing unit 3 includes a recording unit 18 having an inkjet head 16 and an ultraviolet irradiation unit 17 (irradiation unit), and an X-axis moving unit that reciprocates the recording unit 18 in the X-axis direction. 19 and a maintenance unit 21 provided at the right end and designed to maintain and restore the function of the inkjet head 16.

  Furthermore, the recording processing unit 3 extends in the X-axis direction so as to cross over the support stage 2, and extends to the horizontal frame 22 that supports the X-axis moving unit 19, and below the support stage 2, respectively. A pair of left and right side frames 23 that support the horizontal frame 22 on both the left and right sides, and a connecting frame 24 that connects the side frames 23 on the lower side of the support stage 2 are provided. That is, the horizontal frame 22, the pair of side frames 23, and the connecting frame 24 constitute a “mouth” -shaped (square shape) frame portion that surrounds the support stage 2. Further, between each side frame 23 and the connecting frame 24, an up-and-down moving unit 25 that moves the recording unit 18 in the Z-axis direction with respect to the support stage 2 is incorporated.

  The recording unit 18 includes two inkjet heads 16, a carriage 26 on which the two inkjet heads 16 are arranged and mounted in the X-axis direction, and two ultraviolet irradiation units 17 provided so as to sandwich the two inkjet heads 16 in the X-axis direction. And have.

  Each inkjet head 16 is driven to be ejected by a piezoelectric element, for example, and has a plurality of nozzle rows (not shown) for each color extending in the Y-axis direction. That is, it is configured such that a plurality of colors of ultraviolet curable ink can be ejected. Further, the two inkjet heads 16 are arranged so as to be displaced from each other in the Y-axis direction (nozzle row direction).

  Each ultraviolet irradiation unit 17 has an ultraviolet irradiation lamp, and irradiates ultraviolet rays toward the upper surface of the support stage 2. As a result, the ultraviolet curable ink discharged and landed on the recording medium from the inkjet head 16 is cured (fixed).

  The X-axis moving unit 19 includes an X-axis moving mechanism 27 that reciprocates the recording unit 18 in the X-axis direction, and a pair of upper and lower guide shafts 28 that guide the reciprocating movement of the recording unit 18. The X-axis moving mechanism 27 is configured by a belt mechanism, and includes a timing belt 29 to which the carriage 26 and the respective ultraviolet irradiation units 17 are connected, a driving pulley 31 and a driven pulley 32 on which the timing belt 29 is bridged, and driving. And an X-axis motor 33 that drives the pulley 31 and can rotate forward and backward. As the X-axis motor 33 rotates forward and backward, the timing belt 29 travels forward and backward, and the recording unit 18 reciprocates along the guide shaft 28 in the X-axis direction. Further, along with this reciprocation, the inkjet head 16 ejects ultraviolet curable ink and the ultraviolet irradiation unit 17 irradiates ultraviolet rays.

  Each raising / lowering movement part 25 has the raising / lowering drive mechanism 34 which drives the side frame 23 to a Z-axis direction with respect to the connection frame 24, and the raising / lowering guide 35 which hold | maintains the side frame 23 so that raising / lowering is possible. Although details are omitted, the elevating drive mechanism 34 is configured by a ball screw mechanism, and the elevating guide 35 is configured by a linear guide such as an LM guide (registered trademark). By raising and lowering each side frame 23 by each raising and lowering moving unit 25, the inkjet head 16 is raised and lowered via the horizontal frame 22 and the X-axis moving unit 19. As a result, the inkjet head 16 is moved away from the support stage 2, and the gap between the recording medium supported by the support stage 2 and the inkjet head 16 is adjusted.

  As shown in FIG. 4, the Y-axis moving unit 4 includes a pair of left and right Y-axis moving mechanisms 36 provided at the lower left and right middle of the support stage 2 and left and right ends of the lower side of the support stage 2. And a Y-axis guide 37.

  The Y-axis moving mechanism 36 is configured by a ball screw mechanism, and moves the recording processing unit 3 in the Y-axis direction. The Y-axis moving mechanism 36 includes a ball screw 38 that is fixed to the lower side of the support stage 2 so as to extend in the Y-axis direction, a nut member 39 that is screwed to the ball screw 38, and forward / reverse rotation that drives the nut member 39. And a rotatable Y-axis motor 41. The nut member 39 is rotatably connected to the connection frame 24 via the connection member 42.

  Each Y-axis guide 37 is configured by an LM guide, and supports the recording processing unit 3 to be slidable in the Y-axis direction with respect to the support stage 2. Each Y-axis guide 37 is fixed to the support stage 2 (the lower surface of a structural profile 47 described later) so as to extend in the Y-axis direction, and the connection frame 24 is fixed to the Y-axis guide 37 on the guide rail 43. And a slider 44 for sliding.

  As the Y-axis motor 41 rotates forward and backward, the nut member 39 reciprocates in the Y-axis direction along the ball screw 38 while rotating, and the recording processing unit 3 connected to the nut member 39 in the connecting frame 24 It is guided by the shaft guide 37 and reciprocates in the Y-axis direction.

  When recording on a recording medium by the liquid ejection apparatus 1 configured as described above, first, the recording medium is sucked and set on a support stage so that the recording medium is not warped. Subsequently, the gap between the recording medium and the inkjet head 16 is adjusted by the up-and-down moving unit 25 according to the thickness of the recording medium. In this state, the recording processing unit 3 is moved and stopped in the Y-axis direction, and the recording unit 18 is moved in the X-axis direction while the recording processing unit 3 is stopped, so that the recording unit 18 moves in the X-axis direction. In synchronization with the movement, the ejection drive of the inkjet head 16 and the ultraviolet irradiation of the ultraviolet irradiation unit 17 are performed. Thereby, a desired image is recorded on the recording medium.

  As shown in FIG. 5, the support stage 2 includes, in the Y-axis direction, a standby area A where the recording processing unit 3 moved to the rear end of the liquid ejection apparatus 1 faces, and an adsorption area B where the recording medium is adsorbed and set. It is divided into.

  As shown in FIGS. 5 and 6, the support stage 2 includes a table unit 45 on which a recording medium is sucked and set, and a base unit 46 that horizontally supports the table unit 45.

  The base portion 46 is a pair of left and right structural profiles 47 extending in a beam shape in the Y-axis direction, and an intermediate profile extending in the Y-axis direction and located slightly to the right of the pair of structural profiles 47 48, a fixed frame 49 provided so as to connect the two at the front ends of the pair of structural members 47, and the pair of structural members 47 extending in the X-axis direction and aligned in the Y-axis direction. A plurality of X-axis extending members 51 and the four leg members 8 for supporting them are provided.

  Each structural profile 47 and intermediate profile 48 are made of a steel pipe having a square cross section, and constitute a suction flow path to be described later. The front ends of the pair of structural members 47 are supported by the legs 8 via the fixed frame 49. On the other hand, the rear ends of the pair of structural members 47 are supported by the legs 8, respectively.

  The plurality of X-axis extending members 51 includes a plurality of support blocks 52 formed in a rectangular cross section and a plurality of L-shaped members 53 formed in a “L” cross section. And L-shaped members 53 are alternately arranged in the Y-axis direction. That is, in the Y-axis direction, support blocks 52 are provided at positions corresponding to the front and rear end portions of each plate-like member 55 described later, and at positions corresponding to the front-rear intermediate portions of the plate-like members 55, L A character member 53 is provided. The support block 52 and the L-shaped member 53 are joined to the inner side surfaces of the left and right structural members 47 at both left and right ends. Then, the table portion 45 is placed on the upper surfaces of the support block 52, the L-shaped member 53, and the structural shape member 47.

  As shown in FIGS. 5 and 7, the table unit 45 includes a box unit 54 mounted on the base unit 46, five plate-like members 55 on which recording media are placed, and a box unit 54. A plurality of Y-axis extending members 56 that extend in the Y-axis direction between each plate-like member 55 and support the plate-like member 55, and a grid provided between the box portion 54 and the plate-like member 55. And a sealing material 57 having a shape.

  The box portion 54 is formed in a shallow box shape with an open top surface. The five plate-like members 55 are arranged side by side in the front-rear direction (Y-axis direction). Each plate-like member 55 is made of, for example, a punching metal, and a plurality of suction holes (not shown) are formed vertically therethrough. Note that the upper surface of each plate-like member 55, that is, the suction surface 55a on which the recording medium is sucked, is formed in a color with a low reflectance of ultraviolet rays such as black. Thereby, the ultraviolet rays irradiated from the ultraviolet irradiation unit 17 toward the upper surface of the plate-like member 55 are prevented from being reflected by the upper surface of the plate-like member 55 and entering the nozzles of the inkjet head 16.

  The plurality of Y-axis extending members 56 are arranged in the X-axis direction so that the mutual intervals are alternately wide and narrow. A fixing screw 58 that fastens each plate-like member 55 to the support block 52 or the box portion 54 passes through a gap between the Y-axis extending members 56 with a narrow interval. That is, the plurality of Y-axis extending members 56 are provided so as to support each plate-like member 55 in the vicinity of both the left and right sides of the fixing screw 58.

  The seal material 57 is made of, for example, a hard sponge material having a square cross section, and is formed in a lattice shape corresponding to the five plate-like members 55. The sealing material 57 seals the gap between the box portion 54 and each plate-like member 55. The seal material 57 constitutes a suction chamber 60 that is divided into five front and rear sections corresponding to the five plate members 55 between the box portion 54 and the plate member 55.

  As shown in FIG. 6, the suction flow path connecting the suction chamber 60 and the suction blower 7 includes five suction branch pipes 61 connected to the bottom surface of the box portion 54, and left and right structural shapes 47. The left structural member 47 (first support member), the intermediate member 48 (second support member), the intermediate member 62 connecting the structural member 47 and the intermediate member 48, the structural member 47 and the electrical equipment. The connection pipe 63 is connected to the box 6.

  Each suction branch pipe 61 is made of an aluminum flexible duct, and has a smaller diameter than the structural profile 47 (see FIG. 8). The five suction branch pipes 61 are connected to the box portion 54 in one-to-one correspondence with the suction chamber 60 divided into five. Among them, the suction branch pipe 61 (third flow path) whose upstream end is connected to the three front suction chambers 60 is connected to the structural member 47 on the left side at the downstream end. On the other hand, the suction branch pipe 61 (fourth flow path) whose upstream end is connected to the two rear suction chambers 60 is connected to the intermediate shape member 48 at the downstream end.

  The intermediate pipe 62 has an upstream end connected to the front end of the intermediate profile 48 and a downstream end connected to the front end of the left structural profile 47. The intermediate pipe 62 passes below the operation panel 10, and a switching valve (not shown) that opens and closes the intermediate pipe 62 by the operation of the adsorption switching lever 12 provided on the operation panel 10 is interposed in the intermediate pipe 62. Has been.

  The connection pipe 63 is made of an aluminum flexible duct similar to the suction branch pipes 61, and has an upstream end connected to the rear end portion of the left structural member 47 and a downstream end connected to the electrical box 6.

  As described above, among the three suction chambers 60 divided into the five, the suction channel 60 leading to the suction blower 7 is sequentially connected to the suction branch pipe 61 (first channel, first channel, The third flow path), the left structural member 47 (second flow path), and the connecting pipe 63 are included. On the other hand, among the two suction chambers 60 divided into five, the suction channel 60 leading to the suction blower 7 is connected to the suction branch pipe 61 (first channel, first flow channel) in order from the upstream side. 4 flow paths), an intermediate profile 48, an intermediate pipe 62 (intermediate flow path), a left structural profile 47, and a connection pipe 63.

  The two rear suction chambers 60 can be switched between a communication state and a non-communication state with the suction blower 7 by opening and closing the intermediate pipe 62 by operating the suction switching lever 12. For this reason, in the adsorption area B, the area corresponding to the two rear suction chambers 60 is switched between the state where the negative pressure suction force is applied and the state where the negative pressure suction force is not operated by the operation of the suction switching lever 12. (Second section). On the other hand, the three front suction chambers 60 are always in communication with the suction blower 7. For this reason, the area corresponding to the three suction chambers 60 on the front side in the suction area B is always the suction area B1 (first section) where the negative pressure suction force acts when the suction blower 7 is driven.

When the print medium is smaller than the suction area B, the operator needs to stretch the periphery of the print medium with a film material or the like in order to prevent air leakage from the suction hole. In this regard, when the print medium is not placed in the suction switching area B2, the suction switching lever 12 is operated so that the negative pressure suction force does not act on the suction switching area B2. This saves time and effort. Specifically, when the size of the print medium corresponds to two sheets of the plate-like member 55, the first and second plate-like members 55 from the front of the regular suction area B1 are used as the print medium. It is only necessary to place a strain on the third plate-like member 55 from the front by placing it on the top and setting the suction switching area B2 so that no negative pressure suction force acts on it.
In the present embodiment, among the five suction chambers 60, the three front suction chambers 60 are always used as the suction area B1, and the two rear suction chambers 60 are used as the suction switching area B2. The connection destination of each suction branch pipe is not limited, and can be changed as appropriate depending on whether the structural profile 47 or the intermediate profile 48 is used.

  As shown in FIG. 6, the electrical box 6 has a substantially rectangular parallelepiped shape, and houses a suction blower 7 together with electrical components not shown. The left and right ends of the electrical box 6 are placed on support plates 64 attached to the lower end surfaces of the two left and right legs 8 of the four legs 8. That is, the electrical box 6 is supported by the left and right legs 8 via the left and right support plates 64. The electrical box 6 is fixed to the left and right legs 8 via L-shaped metal fittings 65 attached to the left and right side surfaces. Thus, since the electrical box 6 is supported by the legs 8 constituting the base portion 46, when the operator moves the base portion 46 (support stage 2) using the casters 9, the electrical box 6 also It moves with the base part 46. Therefore, it is not necessary for the operator to move the electrical equipment box 6 separately from the base portion 46.

The electrical box 6 is made of a conductive material such as steel. A grounding wire (not shown) is connected to the electrical box 6 and is grounded. Further, as described above, the structural profile 47 is made of a conductive material (steel material), and the electrical box 6 and the left structural profile 47 are made of a conductive material (made of aluminum). The connection pipe 63 is connected. In other words, the electrical box 6 and the left structural member 47 are electrically connected via the connection pipe 63. For this reason, the grounding of the support stage 2 can be ensured without connecting a grounding wire to the support stage 2.
The conductive material is not particularly limited as long as the support stage 2 can be grounded, and may be conductive plastic, conductive silicon, or the like in addition to metal. The conductive material preferably has a volume resistivity of 10 ³ μΩ · cm or less, and more preferably 10 ² μΩ · cm or less.

  The suction blower 7 evacuates the inside of the suction chamber 60 through the suction flow path described above, thereby causing a negative pressure suction force to act on the plurality of suction holes formed in the plate-like member 55, and this negative pressure suction force The recording medium is sucked and held on the suction surface 55a. A filter that traps foreign matter is provided at an air inlet (a connection port of the connection pipe 63) formed in the electrical box 6. Note that a suction pump or the like may be used as the suction force generation unit instead of the suction blower 7.

  Further, as described above, the operation unit 5 is provided at the front end portion of the support stage 2, whereas the electrical box 6 is provided at the rear end portion of the support stage 2. That is, the electrical box 6 is provided apart from the operation unit 5 where the worker is located. For this reason, it can prevent that an operator touches the electrical equipment box 6 unnecessarily. The suction blower 7 accommodated in the electrical box 6 is also provided apart from the operation unit 5 where the operator is located. For this reason, the noise level of the suction blower 7 felt by the operator can be reduced.

  As described above, according to the liquid ejection apparatus 1 of the present embodiment, the suction flow path includes the suction branch pipe 61 and the structural member 47 having a diameter larger than that of the suction branch pipe 61, so that the suction flow path The internal airflow decelerates when it reaches the structural profile 47 from the suction branch pipe 61. For this reason, even if the ink mist generated in the recording processing unit 3 enters the suction flow path through the suction hole, the ink mist falls in the structural member 47 in which the airflow is decelerated. Therefore, the amount of ink mist that reaches the suction blower 7 from the structural profile 47 can be further reduced. Therefore, the replacement frequency of the filter provided at the air inlet does not increase. Furthermore, by using the structural shape member 47 constituting the base portion 46 as a large-diameter suction channel, it is not necessary to provide a tube for constituting the large-diameter suction channel separately from the base portion 46. For this reason, there is no restriction on the piping space for the large-diameter suction channel, and the total number of parts can be reduced. Furthermore, since the structural shape member 47 extends over the entire table portion 45 in the Y-axis direction, the ink mist collection area can be widened.

  In the present embodiment, the liquid ejecting apparatus 1 has been described by taking an example of ejecting ultraviolet curable ink by an inkjet method, but is not limited to this, and ejects other ink. There may be.

  In the present embodiment, the present invention is applied to the liquid ejecting apparatus 1 that performs recording by moving the recording unit 18 in the XY directions. However, the recording unit 18 having a line head is moved only in the Y-axis direction. The present invention may be applied to a liquid discharge apparatus 1 (so-called line printer) that performs recording.

  In the present embodiment, the present invention is applied to the liquid ejecting apparatus 1 that uses ultraviolet curable ink. However, as the liquid ejecting apparatus 1 that uses electromagnetic wave curable ink, ink that is cured by irradiation with infrared rays or microwaves is used. The present invention may be applied to the liquid ejection apparatus 1. As a result, the present invention may be applied not only to the liquid ejecting apparatus 1 that uses the electromagnetic wave curable ink but also to the liquid ejecting apparatus 1 that uses general water-based ink, oil-based ink, gel ink, hot melt ink, and the like as the ink. .

  In the present embodiment, the present invention is applied to the liquid ejecting apparatus 1 that ejects ink. However, the present invention is applied to a liquid ejecting apparatus that ejects (or ejects) liquid (droplets) other than ink. May be. For example, a liquid (functional liquid) containing materials such as electrode materials and color materials used in the production of liquid crystal displays, organic EL (electroluminescence) displays, surface-emitting displays, and color filters in a dispersed or dissolved form is discharged. A configuration in which the present invention is applied to a liquid ejection apparatus may be employed.

  Further, the present invention may be applied to a liquid ejecting apparatus that ejects bioorganic matter used for biochip manufacturing, a liquid ejecting apparatus that ejects a liquid that is used as a precision pipette, a sample, a printing apparatus, a microdispenser, and the like.

  In addition, transparent resins such as UV curable resins are used to form liquid ejection devices that eject lubricants to precision machines such as watches and cameras, and micro hemispherical lenses (optical lenses) used in optical communication elements. The present invention may be applied to a liquid discharge apparatus that discharges a liquid onto a substrate and a liquid discharge apparatus that discharges an etching solution such as an acid or an alkali to etch the substrate.

  In addition, as a configuration for discharging the liquid, a configuration for discharging the liquid so that the liquid flies in a granular state, a configuration for discharging the liquid so that the liquid flies in a tear-like state, and the liquid has a tail like a string The structure etc. which discharge a liquid so that it may fly in the state which was in the state are assumed.

  The liquid may be any liquid material that can be discharged by the liquid discharge device. For example, liquid materials with high or low viscosity, sol, gel water, other inorganic solvents, organic solvents, solutions, liquid resins, liquid metals (metal melts), and one state of matter It is assumed that particles of functional materials made of solid materials such as pigments and metal particles are dissolved, dispersed or mixed in a solvent as well as liquids.

  1: liquid ejection device, 3: recording processing unit, 5: operation unit, 45: table unit, 46: base unit, 47: structural profile, 48: intermediate profile, 55a: adsorption surface, 61: adsorption branch pipe, 62: Intermediate pipe, 63: Connection pipe

Claims (6)

A table portion on which a medium is adsorbed on an adsorption surface on which a suction hole is formed;
A suction flow path that connects the suction force generating section that generates the suction force and the table section;
A liquid ejection unit that ejects liquid to the medium adsorbed on the adsorption surface;
The suction channel is
A first flow path connected to the table portion;
A second flow path connected to the first flow path and having a larger diameter than the first flow path;
A liquid ejecting apparatus comprising: A tubular support member, further comprising a base portion for supporting the table portion;
The liquid ejection apparatus according to claim 1, wherein the second flow path is configured by the support member. An electrical box capable of accommodating the suction force generation unit,
The suction flow path further includes a connection pipe that connects the support member and the electrical equipment box,
The liquid ejection apparatus according to claim 2, wherein the electrical box is grounded, and the electrical box, the support member, and the connection pipe have conductivity. An operation unit that is provided at one end in the longitudinal direction of the table unit and receives an input operation by an operator;
The liquid ejection apparatus according to claim 3, wherein the electrical box is provided at the other end of the table portion in the longitudinal direction. The base portion is configured to be movable,
The liquid ejection apparatus according to claim 3, wherein the electrical box is supported by the base portion. The table section is divided into a first section to which a third flow path that is the first flow path is connected and a second section to which a fourth flow path that is the first flow path is connected. ,
The suction channel is
A first support member that is the support member to which the third flow path is connected;
A second support member that is the support member to which the fourth flow path is connected;
An intermediate flow path connecting the first support member and the second support member;
The switching valve for switching the second section and the suction force generation unit between a communication state and a non-communication state is provided in the intermediate flow path. The liquid discharge apparatus as described.

Images