Liquid receiving device and liquid ejecting device

Abstract

To provide a liquid receiving device which enables reduction of a risk of leakage of a liquid from a receiving unit, and to provide a liquid ejecting device.SOLUTION: A liquid receiving device 32 includes: a receiving unit 36 configured to receive a liquid from an ejecting unit configured to eject the liquid, and a joining member 42 joined to the receiving unit. The receiving unit includes: a reception wall 37 configured to receive the liquid, and a circumference wall 38 extending from the reception wall. The circumference wall defines a reception port 39 through which the liquid ejected from the ejecting unit passes, and includes a joining surface joined to the joining member. The joining member extends along the circumference wall, and includes a protruding portion 44 extending inward from the circumference wall.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a liquid receiving device and a liquid ejection device. [Background technology]

[0002] Patent Document 1 describes a liquid ejection device having an ejection part that ejects liquid and a receiving part that receives the liquid from the ejection part. The receiving part has a receiving wall that receives the liquid and a peripheral wall that extends from the receiving wall. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2022-138289 A Summary of the Invention [Problem to be solved by the invention]

[0004] In such a liquid ejection device, the liquid may creep up the peripheral wall due to capillary forces at corners formed in the peripheral wall, which may cause the liquid to leak from the receiving portion. [Means for solving the problem]

[0005] A liquid receiving device that solves the above problem comprises a receiving portion that receives liquid from a discharge portion that discharges liquid, and a joining member that is joined to the receiving portion, wherein the receiving portion has a receiving wall that receives the liquid and a peripheral wall extending from the receiving wall, the peripheral wall defines a receiving opening through which liquid discharged from the discharge portion passes, and has a joining surface that is joined to the joining member, and the joining member extends along the peripheral wall and has a protruding portion that extends inward from the peripheral wall.

[0006] A liquid ejection device that solves the above problem has a nozzle surface through which a nozzle opens, and is equipped with an ejection section that ejects liquid from the nozzle, and a wiping section that wipes the nozzle surface, the wiping section having a blade that contacts the nozzle surface, a receiving section that supports the blade, and a joining member that is joined to the receiving section, the receiving section having a receiving wall that receives liquid and a peripheral wall extending from the receiving wall, the peripheral wall defining a receiving opening through which liquid discharged from the ejection section passes and having a joining surface that is joined to the joining member, the blade extends to protrude from the receiving opening, and the joining member extends along the peripheral wall and has a protruding portion that extends inward from the peripheral wall. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a side view showing an embodiment of a liquid ejection device. [Diagram 2] FIG. 2 is a bottom view of the wiping unit when it is located at the standby position. [Diagram 3] FIG. 3 is a bottom view of the wiping part when it is located at the start position. [Figure 4] FIG. 4 is a top view showing one embodiment of a liquid receiving device. [Diagram 5] FIG. 5 is a top view of the receiver. [Figure 6] FIG. 6 is a cross-sectional view of a liquid receiving device. [Figure 7] FIG. 7 is an enlarged view of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] An embodiment of a liquid ejection device will be described below with reference to the drawings. The liquid ejection device is, for example, an inkjet printer that prints images such as characters and photographs by ejecting ink, which is an example of a liquid, onto a medium such as paper or fabric.

[0009] <Liquid discharge device> As shown in FIG. 1, the liquid ejection device 11 includes a housing 12. The housing 12 is made of a plastic material. The liquid ejection device 11 includes a storage unit 13. The storage unit 13 is configured to store a medium 99. The storage unit 13 is, for example, a cassette that can be pulled out from the housing 12. The storage unit 13 stores a plurality of media 99 that are stacked.

[0010] The liquid ejection device 11 includes a transport path 14. The transport path 14 is a path along which the medium 99 is transported. The transport path 14 extends within the housing 12. The transport path 14 extends, for example, so as to discharge the medium 99 from the storage section 13 to the outside of the housing 12. An image is printed on the medium 99 while the medium 99 is being transported along the transport path 14. The medium 99 is discharged to the outside of the housing 12 by being transported along the transport path 14.

[0011] The liquid ejection device 11 includes a transport unit 15. The transport unit 15 is configured to transport a medium 99. The transport unit 15 transports the medium 99 from the storage unit 13 along a transport path 14. The transport unit 15 has, for example, one or more rollers. The rollers are located at positions along the transport path 14.

[0012] The liquid ejection device 11 includes a stacker 16. Media 99 on which images are printed are stacked on the stacker 16. The stacker 16 is attached to the housing 12. The stacker 16 receives the media 99 that is discharged to the outside of the housing 12 via the transport path 14.

[0013] The liquid ejection device 11 includes an ejection unit 21. The ejection unit 21 is configured to eject liquid. The ejection unit 21 ejects the liquid onto the medium 99, thereby printing an image on the medium 99. The ejection unit 21 is located at a position along the transport path 14. The ejection unit 21 ejects the liquid onto the medium 99 transported along the transport path 14.

[0014] As shown in FIG. 2, the ejection unit 21 has one or more heads 22. In one example, the ejection unit 21 has a plurality of heads 22. The plurality of heads 22 are aligned in one direction. In one example, the plurality of heads 22 are aligned in the scanning direction D1. The ejection unit 21 can eject liquid across the width of the medium 99 by aligning the plurality of heads 22 in the scanning direction D1. In one example, the ejection unit 21 is a line head that can eject liquid simultaneously across the width of the medium 99. The ejection unit 21 may be a serial head that ejects liquid while moving in the scanning direction D1 relative to the medium 99.

[0015] The head 22 has a nozzle surface 23. One or more nozzles 24 are opened in the nozzle surface 23. In one example, a plurality of nozzles 24 are opened in the nozzle surface 23. A plurality of nozzle rows 25 are formed in the nozzle surface 23. The nozzle row 25 is a row formed by arranging a plurality of nozzles 24 in one direction. In the nozzle surface 23, the plurality of nozzle rows 25 are arranged in the scanning direction D1. The nozzle row 25 extends in a direction different from the scanning direction D1. In other words, the plurality of nozzles 24 constituting one nozzle row 25 are arranged in a direction different from the scanning direction D1.

[0016] The head 22 ejects liquid from the nozzles 24. In one example, the head 22 ejects liquid from the nozzles 24 in a direction in which the nozzle surface 23 is oblique to the horizontal and vertical. In particular, the nozzle surface 23 faces obliquely downward.

[0017] The nozzle surface 23 includes an upper region A1 and a lower region A2. The upper region A1 and the lower region A2 are regions obtained by dividing the nozzle surface 23 in half by a virtual line L1 extending in the scanning direction D1 when viewed from a position facing the nozzle surface 23. The upper region A1 is located above the lower region A2. The nozzle row 25 is located across both the upper region A1 and the lower region A2. The virtual line L1 extends so as to intersect with the nozzle row 25.

[0018] The ejection part 21 may be configured to move in a direction perpendicular to the nozzle surface 23. By moving in this direction, the ejection part 21 approaches or moves away from the maintenance part 31 described below. By approaching the maintenance part 31, the ejection part 21 can come into contact with the maintenance part 31.

[0019] <Maintenance Department> As shown in Fig. 1, the liquid ejection device 11 includes a maintenance unit 31. The maintenance unit 31 is configured to perform maintenance on the ejection unit 21. For example, the maintenance unit 31 performs maintenance on the ejection unit 21 by receiving liquid discharged from the ejection unit 21 by cleaning. Cleaning is an operation for forcibly discharging liquid from the nozzle 24. Viscous liquid, air bubbles, and the like are discharged from the ejection unit 21 by cleaning.

[0020] The cleaning includes pressure cleaning. Pressure cleaning is an operation for forcibly discharging the liquid from the nozzle 24 by pressurizing the inside of the discharge part 21. In one example, the pressure cleaning is performed by pressurizing the inside of the discharge part 21 with a pressure pump (not shown).

[0021] The cleaning includes suction cleaning. Suction cleaning is an operation in which the inside of the discharge part 21 is sucked to forcibly discharge the liquid from the nozzle 24. In one example, the maintenance part 31 sucks the inside of the discharge part 21 to perform suction cleaning.

[0022] The maintenance unit 31 may perform maintenance on the ejection unit 21 by receiving liquid ejected from the ejection unit 21 by flushing. Flushing is maintenance in which the ejection unit 21 ejects liquid from the nozzle 24 as appropriate. Flushing prevents clogging of the nozzle 24. The maintenance unit 31 may have a flushing receiver that receives liquid ejected from the ejection unit 21 by flushing.

[0023] The maintenance unit 31 may maintain the ejection unit 21 by capping the ejection unit 21. Capping is an operation in which the maintenance unit 31 comes into contact with the ejection unit 21 to form a space communicating with the nozzle 24. The nozzle 24 is moisturized by capping. The maintenance unit 31 may have a cap that caps the ejection unit 21. The cap may receive liquid discharged from the ejection unit 21 by cleaning. The cap may receive liquid ejected from the ejection unit 21 by flushing.

[0024] The maintenance unit 31 maintains the ejection unit 21 by wiping the ejection unit 21. Wiping is an operation in which the maintenance unit 31 wipes the nozzle surface 23. Liquid, foreign matter, and the like are removed from the nozzle surface 23 by wiping.

[0025] The maintenance unit 31 has a wiping unit 32. The wiping unit 32 is configured to wipe the nozzle surface 23. In other words, the wiping unit 32 is configured to wipe the ejection unit 21.

[0026] The wiping part 32 may be configured to move in a direction perpendicular to the nozzle surface 23. By moving in this direction, the wiping part 32 approaches or moves away from the ejection part 21. By approaching the ejection part 21, the wiping part 32 can come into contact with the nozzle surface 23.

[0027] The wiping unit 32 is configured to move in the scanning direction D1. More specifically, the wiping unit 32 is configured to move in the scanning direction D1 and the opposite direction. The wiping unit 32 wipes the discharge unit 21 by moving in the scanning direction D1 while contacting the nozzle surface 23. The wiping unit 32 may wipe the discharge unit 21 by moving the discharge unit 21 in the scanning direction D1 relative to the wiping unit 32.

[0028] As shown in FIG. 2 and FIG. 3, the wiping unit 32 is displaced between a standby position P1 and a start position P2 in the scanning direction D1. The standby position P1 is a position where the wiping unit 32 waits. For example, when the wiping unit 32 does not wipe the discharge unit 21, the wiping unit 32 waits at the standby position P1. In one example, the standby position P1 is a position shifted from the start position P2 in the scanning direction D1. The start position P2 is a position when the wiping unit 32 starts wiping. When starting wiping, the wiping unit 32 moves from the standby position P1 to the start position P2. The wiping unit 32 wipes the discharge unit 21 by moving from the start position P2. In one example, the wiping unit 32 wipes the discharge unit 21 by moving from the start position P2 in the scanning direction D1.

[0029] The wiping unit 32 has a blade 33. The blade 33 comes into contact with the nozzle face 23. The blade 33 wipes the nozzle face 23. The blade 33 is, for example, a rubber wiper. The blade 33 extends parallel to the nozzle row 25. As the wiping unit 32 moves in the scanning direction D1, the blade 33 sequentially wipes the multiple heads 22.

[0030] The wiping unit 32 may have a sub-blade 34. The sub-blade 34 comes into contact with a side surface of the head 22. The sub-blade 34 wipes the side surface of the head 22. In one example, the sub-blade 34 comes into contact with a downward-facing side surface among a plurality of side surfaces of the head 22. This is because the liquid tends to flow from the nozzle surface 23 to the downward-facing side surface due to the action of gravity.

[0031] The wiping portion 32 has a liquid receiving device 35. The liquid receiving device 35 is configured to receive liquid from the discharge portion 21. The liquid receiving device 35 accommodates the liquid received from the discharge portion 21. In one example, the liquid receiving device 35 receives the liquid wiped by the blade 33. The liquid receiving device 35 receives the liquid that flows down the blade 33. The liquid receiving device 35 receives the liquid wiped by the sub-blade 34. The liquid receiving device 35 receives the liquid that flows down the sub-blade 34.

[0032] 4 and 5, the liquid receiving device 35 has a receiving portion 36. The receiving portion 36 is configured to receive liquid from the discharge portion 21. The receiving portion 36 supports the blade 33. The receiving portion 36 supports the sub-blade 34.

[0033] The receiving portion 36 has a receiving wall 37. The receiving wall 37 is a wall that receives liquid. The receiving wall 37 constitutes a bottom wall of the receiving portion 36. The blade 33 is attached to the receiving wall 37. The blade 33 extends perpendicularly from the receiving wall 37. The sub-blade 34 is attached to the receiving wall 37. The sub-blade 34 extends perpendicularly from the receiving wall 37.

[0034] The receiver 36 has a peripheral wall 38. The peripheral wall 38 extends from the receiver wall 37. More specifically, the peripheral wall 38 extends perpendicularly from the receiver wall 37. In one example, the peripheral wall 38 extends from the periphery of the receiver wall 37. The peripheral wall 38 constitutes a side wall of the receiver 36. The peripheral wall 38 extends to surround the blade 33. The peripheral wall 38 extends to surround the sub-blade 34.

[0035] The receiving portion 36 has an opening 39 through which the liquid discharged from the ejection portion 21 passes. The opening 39 is defined by a peripheral wall 38. The opening 39 faces the ejection portion 21. The opening 39 faces the nozzle surface 23. In one example, the opening 39 opens in an inclined direction D2. The inclined direction D2 is a direction inclined with respect to the horizontal and vertical. The inclined direction D2 is a direction perpendicular to the nozzle surface 23. The blade 33 and the sub-blade 34 extend so as to protrude from the opening 39.

[0036] The peripheral wall 38 extends annularly on the receiving wall 37. This forms a receiving space S1 in the receiving portion 36. The receiving space S1 is a space in which liquid is received. The receiving space S1 communicates with a receiving opening 39. The liquid enters the receiving space S1 through the receiving opening 39. Annular refers to any structure that forms a loop, i.e., a continuous shape with no ends. Annular shapes include, but are not limited to, circles, ellipses, and polygons with sharp or rounded corners.

[0037] The peripheral wall 38 extends while bending on the receiving wall 37. Therefore, the peripheral wall 38 forms a corner portion 40. In one example, the peripheral wall 38 extends to form a polygonal shape when viewed from a position facing the receiving opening 39. The corner portion 40 is a corner portion of the storage space S1. The liquid may wet and spread along the corner portion 40 due to capillary force. That is, in the corner portion 40, the liquid may creep up the peripheral wall 38 toward the receiving opening 39. If the liquid climbs over the peripheral wall 38, there is a risk that the liquid will leak out of the receiving section 36. In the liquid receiving device 35, the risk of climbing over the peripheral wall 38 is reduced by a joining member 42 described later.

[0038] The peripheral wall 38 has a joint surface 41. The joint surface 41 is a surface that is joined to a joining member 42. The joint surface 41 constitutes a top surface of the peripheral wall 38. The joint surface 41 faces the nozzle surface 23. In one example, the joint surface 41 faces the inclined direction D2.

[0039] The liquid receiving device 35 has a joining member 42. The joining member 42 is joined to the receiving portion 36. More specifically, the joining member 42 is joined to the peripheral wall 38. In one example, the joining member 42 is joined to a joining surface 41. That is, the joining member 42 is located on the peripheral wall 38. The joining member 42 is located on the joining surface 41.

[0040] The joining member 42 is joined to the receiving portion 36 by being welded to the receiving portion 36. In one example, the joining member 42 is laser welded to the receiving portion 36. The joining member 42 may be heat welded or ultrasonically welded to the receiving portion 36. The joining member 42 may be joined to the receiving portion 36 by means of an adhesive, without being limited to welding.

[0041] The joining member 42 is joined to the receiving section 36 by irradiating the joining surface 41 with laser light while the joining member 42 is in contact with the joining surface 41. The portion of the joining member 42 that is in contact with the joining surface 41 is made of, for example, a material that is transparent to laser light. In one example, the entire joining member 42 is made of a material that is transparent to laser light. The joining surface 41 is made of, for example, a material that is absorbent to laser light. The joining surface 41 is melted by the laser light, so that the joining member 42 is welded to the receiving section 36. In one example, the entire peripheral wall 38 is made of a material that is absorbent to laser light. The entire receiving section 36 may be made of a material that is absorbent to laser light.

[0042] The portion of the joining member 42 that comes into contact with the joining surface 41 may be made of the same material as the material that constitutes the joining surface 41. In one example, the entire joining member 42 is made of the same material as the peripheral wall 38. The joining member 42 may be made of the same resin material as the peripheral wall 38. The joining member 42 and the peripheral wall 38 may be made of, for example, polypropylene. By making the joining member 42 and the peripheral wall 38 of the same material, the joining strength between the joining member 42 and the receiving portion 36 is improved.

[0043] The joint member 42 extends along the peripheral wall 38. That is, the joint member 42 extends in an annular shape. A joint opening 43 opens in the joint member 42. The joint opening 43 communicates with the receiving opening 39. The receiving section 36 receives liquid through the joint opening 43. The joint opening 43 opens to be slightly smaller than the receiving opening 39. That is, the joint member 42 overlaps with the periphery of the receiving opening 39 when viewed from a position facing the receiving opening 39. When viewed from a position facing the receiving opening 39, the area of ​​the portion of the receiving opening 39 that overlaps with the joint member 42 is smaller than the area that does not overlap with the joint member 42. In this case, the joint opening 43 opens wide, so that the liquid contained in the receiving section 36 is likely to evaporate.

[0044] The joint member 42 has a protruding portion 44. The protruding portion 44 is a portion that extends inward from the peripheral wall 38. More specifically, the protruding portion 44 is a portion that extends inward from the peripheral wall 38 when viewed from a position facing the receiving opening 39. The protruding portion 44 extends inward from the entire circumference of the joint surface 41. The protruding portion 44 may extend a uniform length around the entire circumference of the peripheral wall 38, or may extend a different length depending on the position of the peripheral wall 38. The protruding portion 44 makes the joint opening 43 one size smaller than the receiving opening 39. The protruding portion 44 blocks the liquid that creeps up the peripheral wall 38. This reduces the risk that the liquid that creeps up the peripheral wall 38 will leak out of the receiving portion 36. In addition, the protruding portion 44 allows the receiving portion 36 to contain the liquid even when the receiving opening 39 opens in the inclined direction D2.

[0045] The portion of the protruding portion 44 that corresponds to the corner portion 40 may extend a longer distance inward from the peripheral wall 38 than the other portions. In this case, the risk of liquid leakage is further reduced. The distance that the protruding portion 44 extends inward from the peripheral wall 38 should be long enough so that the product of the joining does not reach the joining opening 43. For example, when the joining member 42 is welded to the receiving portion 36, the distance should be long enough so that the molten material of the peripheral wall 38 does not reach the joining opening 43. When the joining member 42 is bonded to the receiving portion 36, the adhesive applied to the joining surface 41 should be long enough so that it does not reach the joining opening 43.

[0046] As shown in FIG. 6, the joining member 42 forms a boundary portion 45. The boundary portion 45 is a portion that is a boundary between the joining member 42 and the peripheral wall 38 in the storage space S1. The boundary portion 45 is connected to the corner portion 40. In the boundary portion 45, as in the corner portion 40, the liquid is likely to spread due to capillary force. Therefore, the liquid may spread along the boundary portion 45 by creeping up the peripheral wall 38 at the corner portion 40. In contrast, the joining member 42 is welded over the entire circumference of the peripheral wall 38. Therefore, the boundary portion 45 extends in an annular shape. In this case, even if the liquid spreads along the boundary portion 45, there is no risk that the liquid will creep up the protruding portion 44 toward the joint opening 43. This reduces the risk that the liquid will leak out of the receiving portion 36.

[0047] As shown in FIG. 4, the protruding portion 44 includes a first portion 46 and a second portion 47. The first portion 46 is a portion of the protruding portion 44 that protrudes upward from the peripheral wall 38. The second portion 47 is a portion of the protruding portion 44 that protrudes downward from the peripheral wall 38. The first portion 46 is a portion located at the bottom of the protruding portion 44. The second portion 47 is a portion located at the top of the protruding portion 44. In one example, the first portion 46 is longer than the second portion 47. This makes it easier for the first portion 46 and the peripheral wall 38 to store liquid when the receiving opening 39 opens in the inclined direction D2.

[0048] As shown in FIG. 7, the joint member 42 has an extension portion 48. The extension portion 48 is a portion that extends between the nozzle rows 25 when the wiping part 32 is located at the start position P2. More specifically, when viewed from the inclination direction D2, the extension portion 48 extends between the nozzle rows 25 at the start position P2. More specifically, the extension portion 48 extends so as to pass through a portion between the nozzle rows 25 that is located in the lower region A2. The extension portion 48 extends parallel to the nozzle rows 25. This reduces the risk of liquid adhering to the joint member 42 at the start position P2. The peripheral wall 38 has an avoidance portion 49 that extends so as to pass between the nozzle rows 25 in accordance with the extension portion 48. The avoidance portion 49 extends parallel to the nozzle rows 25.

[0049] When viewed from the inclination direction D2, the wiping portion 32 overlaps with the nozzle surface 23 at the start position P2. In one example, when viewed from the inclination direction D2, the receiving portion 36 and the joint member 42 overlap with the nozzle surface 23 at the start position P2. This reduces the moving distance in the scanning direction D1 required for wiping. On the other hand, when the wiping portion 32 and the nozzle surface 23 overlap at the start position P2, there is a risk that liquid will adhere to the joint member 42. In particular, since the nozzle surface 23 is inclined, liquid is likely to accumulate in the portion of the nozzle row 25 located in the lower region A2. Therefore, if the portion of the joint member 42 that overlaps with the nozzle row 25 located in the lower region A2 is large, there is a high risk that liquid will adhere to the joint member 42. In contrast, the extension portion 48 reduces the portion of the joint member 42 that overlaps with the nozzle row 25 located in the lower region A2, so that the risk of liquid adhering to the joint member 42 is reduced.

[0050] The liquid receiving device 35 may have an outlet portion 51. The outlet portion 51 is configured to outlet the liquid from the receiving portion 36. The outlet portion 51 is attached to the receiving portion 36. The outlet portion 51 is located at the lower portion of the receiving portion 36. For example, the outlet portion 51 is located so as to overlap with the first portion 46 when viewed from a position facing the receiving port 39. By being located at the lower portion of the receiving portion 36, the outlet portion 51 makes it easier to outlet the liquid. The outlet portion 51 is configured to be connected to, for example, a connection portion 53 described later. The outlet portion 51 communicates with the inside of the receiving portion 36, i.e., the storage space S1. An insertion port 52 opens in the outlet portion 51. The insertion port 52 opens, for example, toward the scanning direction D1. The outlet portion 51 is connected to the connection portion 53 by inserting the connection portion 53 into the insertion port 52.

[0051] 2 and 3, the maintenance unit 31 has a connection unit 53. The connection unit 53 is configured to be connected to the liquid receiving device 35. More specifically, the connection unit 53 is connected to the outlet unit 51. The connection unit 53 is connected to the outlet unit 51 when the wiping unit 32 is located at a predetermined position. In one example, the connection unit 53 is connected to the outlet unit 51 when the wiping unit 32 is located at the standby position P1. The connection unit 53 is located at a position shifted from the discharge unit 21 in the scanning direction D1.

[0052] The connection portion 53 has a connection needle 54. The connection needle 54 extends toward the wiping portion 32. In one example, the connection needle 54 extends in the opposite direction to the scanning direction D1. The connection needle 54 is inserted into the insertion port 52. In one example, the connection needle 54 is inserted into the insertion port 52 by the wiping portion 32 moving in the scanning direction D1. This allows the liquid to be drawn out from the receiving portion 36.

[0053] 1, the maintenance unit 31 has a suction unit 55. The suction unit 55 includes, for example, a suction pump. The suction unit 55 is connected to the connection unit 53. The suction unit 55 is configured to suck the liquid in the receiving unit 36 ​​through the connection unit 53. The suction unit 55 effectively draws the liquid out of the receiving unit 36.

[0054] The maintenance unit 31 may have a waste liquid storage unit 56. The waste liquid storage unit 56 is connected to the suction unit 55. The waste liquid storage unit 56 stores the liquid sucked from the receiving unit 36 ​​by the suction unit 55. That is, the waste liquid storage unit 56 stores the liquid recovered from the discharge unit 21 by maintenance.

[0055] <Action and Effects> Next, the operation and effects of the above embodiment will be described. (1) The joint member 42 has a protruding portion 44 extending inward from the peripheral wall 38. According to the above configuration, the protruding portion 44 reduces the risk of liquid creeping up the joint member 42. Therefore, the risk of liquid leaking from the receiving portion 36 is reduced.

[0056] (2) The receiving opening 39 opens in the inclined direction D2 that is inclined with respect to the horizontal and vertical. According to the above-described configuration, it becomes easier to collect liquid in the lower part of the receiving portion . (3) The outlet portion 51 is located in the lower portion of the receiving portion 36. According to the above-described configuration, the liquid that has accumulated in the lower portion of the receiving portion 36 can be efficiently discharged through the outlet portion 51.

[0057] (4) The portion of the joint member 42 that comes into contact with the joint surface 41 is made of the same material as the material that constitutes the joint surface 41. According to the above configuration, the joint strength between the receiving portion 36 and the joint member 42 can be ensured.

[0058] (5) The joining surface 41 is absorptive to laser light. The joining member 42 is transparent to laser light. With the above configuration, the receiving portion 36 and the joining member 42 can be joined by laser welding. This ensures the joining strength between the receiving portion 36 and the joining member 42.

[0059] (6) In the receiving opening 39, the area of ​​the portion that does not overlap with the joining member 42 is larger than the area of ​​the portion that overlaps with the joining member 42. According to the above-described configuration, the liquid contained in the receiving portion 36 easily evaporates.

[0060] (7) When viewed from the inclination direction D2, at the start position P2, the joint member 42 has an extension portion 48 that extends between the nozzle rows 25. When the nozzle rows 25 and the joint member 42 overlap, the risk of liquid adhering to the joint member 42 increases. According to the above configuration, the portion of the joint member 42 that overlaps with the nozzle rows 25 is reduced, so the risk of liquid adhering to the joint member 42 is reduced. In particular, in the above example, since the nozzle surface 23 is inclined, liquid is likely to accumulate at the lower part of the nozzle rows 25. Therefore, by extending the extension portion 48 to the portion located in the lower region A2 between the nozzle rows 25, the risk of liquid adhering to the joint member 42 is further reduced.

[0061] (8) The maintenance unit 31 includes a connection unit 53 that is connected to the discharge unit 51 when the wiping unit 32 is located at the standby position P1, and a suction unit 55 that sucks the liquid in the receiving unit 36 ​​through the connection unit 53. According to the above configuration, the liquid received in the receiving unit 36 ​​can be effectively discharged by the suction unit 55.

[0062] <Example of change> The above embodiment can be modified as follows: The above embodiment and the following modified examples can be combined with each other to the extent that there is no technical contradiction.

[0063] The liquid receiving device 35 is not limited to being applied to the wiping section 32, but may also be applied to a flushing receiver, waste liquid storage section 56, etc. The liquid receiving device 35 may also be applied to a borderless liquid receiver used during borderless printing.

[0064] The outlet portion 51 is not limited to a configuration in which it directly communicates with the inside of the receiving portion 36. For example, in the liquid receiving device 35, the receiving portion 36 and the joint member 42 may be joined to form a flow path that communicates the inside of the receiving portion 36 with the outlet portion 51. In this case, the flow path communicates the outlet portion 51 with the inside of the receiving portion 36.

[0065] The liquid ejected by the ejection unit 21 is not limited to ink, and may be, for example, a liquid in which particles of a functional material are dispersed or mixed in a liquid. For example, the ejection unit 21 may eject a liquid containing, in a dispersed or dissolved form, a material such as an electrode material or a pixel material used in the manufacture of liquid crystal displays, electroluminescence displays, and surface-emitting displays.

[0066] <Technical philosophy> The technical ideas and effects obtained from the above-mentioned embodiment and modified examples will be described below.

[0067] (A) A liquid receiving device includes a receiving portion that receives liquid from a discharge portion that discharges the liquid, and a joint member that is joined to the receiving portion, the receiving portion having a receiving wall that receives the liquid and a peripheral wall extending from the receiving wall, the peripheral wall defining a receiving port through which the liquid discharged from the discharge portion passes, and having a joint surface that is joined to the joint member, the joint member extending along the peripheral wall and having a protruding portion that extends inward from the peripheral wall. According to the above configuration, the protruding portion reduces the risk of the liquid creeping up the joint member. Therefore, the risk of the liquid leaking from the receiving portion is reduced.

[0068] (B) In the liquid receiving device, the receiving port may open in an inclined direction inclined with respect to the horizontal and vertical. With this configuration, it becomes easier to collect liquid in the lower part of the receiving portion.

[0069] (C) The liquid receiving device may include an outlet portion that outputs the liquid from the receiving portion, and the outlet portion may be located below the receiving portion. With the above configuration, the liquid accumulated in the lower portion of the receiving portion can be efficiently output through the outlet portion.

[0070] (D) In ​​the liquid receiving device, the portion of the joint member that comes into contact with the joint surface may be made of the same material as the material that constitutes the joint surface. With this configuration, the joining strength between the receiving portion and the joint member can be ensured.

[0071] (E) In the above liquid ejection device, the bonding surface has absorptivity for laser light, The joining member may be transparent to laser light. According to the above-mentioned configuration, the receiving portion and the joining member can be joined by laser welding, thereby ensuring the joining strength between the receiving portion and the joining member.

[0072] (F) In the liquid receiving device, an area of ​​the receiving port that does not overlap with the joining member may be larger than an area of ​​the receiving port that overlaps with the joining member. With the above configuration, the liquid received in the receiving portion is likely to evaporate.

[0073] (G) A liquid ejection device has a nozzle surface where a nozzle is opened, and includes an ejection part that ejects liquid from the nozzle, and a wiping part that wipes the nozzle surface, the wiping part having a blade that contacts the nozzle surface, a receiving part that supports the blade, and a joining member that is joined to the receiving part, the receiving part has a receiving wall that receives the liquid and a peripheral wall that extends from the receiving wall, the peripheral wall defines a receiving port through which the liquid discharged from the ejection part passes, and has a joining surface that is joined to the joining member, the blade extends so as to protrude from the receiving port, and the joining member has a protruding portion that extends along the peripheral wall and extends inward from the peripheral wall. According to the above configuration, the protruding portion reduces the risk of the liquid creeping up the joining member. Therefore, the risk of the liquid leaking from the receiving part is reduced.

[0074] In the liquid ejection device, the receiving port may open in an inclined direction inclined with respect to the horizontal and vertical, and the nozzle surface may face the receiving port. With the above configuration, it is easy to collect liquid in the lower part of the receiving portion.

[0075] (I) In the above liquid ejection device, the nozzle is one of a plurality of nozzles, a plurality of nozzle rows are formed on the nozzle surface by arranging the plurality of nozzles, the wiping section is positioned so as to overlap the nozzle surface at a position where the wiping section starts wiping when viewed from the inclined direction, and the joining member may have an extension portion extending between the nozzle rows at a position where the wiping section starts wiping when viewed from the inclined direction. If the joining member overlaps with the nozzle rows, there is a high possibility that liquid will adhere to the joining member. According to the above configuration, the extension portion reduces the portion of the joining member that overlaps with the nozzle rows, thereby reducing the possibility that liquid will adhere to the joining member.

[0076] In the liquid ejection device, the portion of the joint member that comes into contact with the joint surface may be made of the same material as the material that constitutes the joint surface. With this configuration, it is possible to ensure the bonding strength between the receiving portion and the joint member.

[0077] (K) In the liquid ejection device, the bonding surface may be absorptive to laser light, and the bonding member may be transparent to laser light. With the above configuration, the receiving portion and the bonding member can be bonded by laser welding. This ensures a bonding strength between the receiving portion and the bonding member.

[0078] (L) In the liquid ejection device, an area of ​​the receiving port that does not overlap with the joining member may be larger than an area of ​​the receiving port that overlaps with the joining member. With the above configuration, the liquid contained in the receiving port is likely to evaporate.

[0079] (M) The liquid ejection device may further include a discharge section that discharges the liquid from the receiving section, the discharge section being located below the receiving section. With the above configuration, the liquid that has accumulated below the receiving section can be efficiently discharged through the discharge section.

[0080] (N) The liquid ejection device may include a connection part that is connected to the outlet part when the wiping part is located at a predetermined position, and a suction part that sucks the liquid in the receiving part through the connection part. According to the above configuration, the liquid received in the receiving part can be effectively discharged by the suction part. [Explanation of symbols]

[0081] 11...liquid ejection device, 12...housing, 13...storage section, 14...transport path, 15...transport section, 16...stacker, 21...ejection section, 22...head, 23...nozzle surface, 24...nozzle, 25...nozzle row, 31...maintenance section, 32...wiping section, 33...blade, 34...sub-blade, 35...liquid receiving device, 36...receiving section, 37...receiving wall, 38...circumferential wall, 39...receiving port, 40...corner portion, 41...joint surface, 42 ...Joint member, 43...Joint port, 44...Protruding portion, 45...Boundary portion, 46...First portion, 47...Second portion, 48...Extension portion, 49...Avoidance portion, 51...Outlet portion, 52...Insertion port, 53...Connection portion, 54...Connection needle, 55...Suction portion, 56...Waste liquid storage portion, 99...Medium, A1...Upper region, A2...Lower region, D1...Scanning direction, D2...Inclination direction, L1...Virtual line, P1...Waiting position, P2...Starting position, S1...Storage space.

Claims

1. a receiving portion that receives liquid from a discharge portion that discharges the liquid; a joining member joined to the receiving portion, The receiving portion has a receiving wall that receives a liquid and a peripheral wall that extends from the receiving wall, The peripheral wall is defining a receiving port through which liquid is discharged from the outlet; a joining surface to be joined with the joining member; The joining member is Extending along the peripheral wall, A liquid receiving device comprising a protruding portion extending inwardly from said peripheral wall.

2. 2. The liquid receiving device according to claim 1, wherein the receiving port opens in a direction inclined with respect to the horizontal and vertical directions.

3. A discharge portion for discharging liquid from the receiving portion is provided, 3. The liquid receiving device according to claim 2, wherein the outlet portion is located below the receiving portion.

4. 2. The liquid receiving device according to claim 1, wherein the portion of the joining member that comes into contact with the joining surface is made of the same material as that constituting the joining surface.

5. the bonding surface is absorptive to laser light, 5. The liquid receiving device according to claim 4, wherein the joining member is transparent to laser light.

6. 6. The liquid receiving device according to claim 1, wherein an area of ​​the receiving opening that does not overlap with the joining member is larger than an area of ​​the receiving opening that overlaps with the joining member.

7. a discharge section having a nozzle surface on which nozzles are opened and configured to discharge liquid from the nozzles; a wiping unit that wipes the nozzle surface, The wiping unit includes: a blade in contact with the nozzle face; a receiving portion for supporting the blade; a joining member joined to the receiving portion, The receiving portion has a receiving wall that receives a liquid and a peripheral wall that extends from the receiving wall, The peripheral wall is defining a receiving port through which liquid is discharged from the outlet; a joining surface to be joined with the joining member; The blade extends from the receiving opening, The joining member is Extending along the peripheral wall, A liquid ejection device comprising: a protruding portion extending inward from said peripheral wall.

8. The receiving port opens in a direction inclined with respect to the horizontal and vertical, The liquid ejection device according to claim 7 , wherein the nozzle surface faces the receiving port.

9. the nozzle is one of a plurality of nozzles; a plurality of nozzle rows each including a plurality of nozzles arranged in a row are formed on the nozzle surface; when viewed from the inclination direction, the wiping portion is positioned so as to overlap the nozzle surface at a position where the wiping portion starts wiping; The liquid ejection device according to claim 8 , wherein, when viewed from the inclined direction, the joint member has an extending portion that extends between the nozzle rows at a position where the wiping portion starts wiping.

10. The liquid ejection device according to claim 7 , wherein the portion of the joining member that comes into contact with the joining surface is made of the same material as the material that constitutes the joining surface.

11. the bonding surface is absorptive to laser light, The liquid ejection device according to claim 10 , wherein the joining member is transparent to laser light.

12. 8. The liquid ejection device according to claim 7, wherein an area of ​​the receiving port that does not overlap with the joint member is larger than an area of ​​the receiving port that overlaps with the joint member.

13. A discharge portion for discharging liquid from the receiving portion is provided, The liquid ejection device according to claim 7 , wherein the outlet portion is located below the receiving portion.

14. a connection portion that is connected to the outlet portion when the wiping portion is located at a predetermined position; The liquid ejection device according to claim 13 , further comprising: a suction portion that sucks the liquid in the receiving portion through the connection portion.

Images