Scraper and ink-jet printer

Abstract

The scraper comprises a base, a body part and a contact part, the body part is connected with the base, the contact part is located at the top of the scraper and connected with the body part in the height direction of the scraper, and the contact part further comprises a protruding part arranged on at least one side, in the thickness direction of the scraper, of the contact part. The protruding part protrudes in the thickness direction of the scraper relative to the contact part. By arranging the protruding part on the scraper contact part, the to-be-cleaned surface of the spray head can be effectively cleaned when the length of the scraper protruding out of the to-be-cleaned surface of the spray head is long or short, and the risk that dirt on the scraper reversely pollutes the spray head can be reduced. And the lug boss is in linear contact with the to-be-cleaned surface, and the contact area of the lug boss and the to-be-cleaned surface is small, so that the cleaning force of the scraper on the surface of the nozzle can be improved, and the cleaning effect on residual ink on the to-be-cleaned surface of the nozzle can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of office appliances, and in particular to a scraper and an inkjet printer. Background Art

[0002] After the inkjet printer using thermal foaming technology completes the printing work, it is necessary to clean the residual ink on the surface of the nozzle for subsequent printing work. The maintenance area of ​​the inkjet printer is equipped with a scraper, which is installed under the nozzle, and its end exceeds the surface to be cleaned of the nozzle. The scraper moves relative to the nozzle, and contacts the surface to be cleaned of the nozzle during the movement of the scraper, thereby removing the residual ink on the surface to be cleaned. However, the scraper is affected by tolerance, and it is impossible to accurately guarantee the length of the scraper protruding from the surface to be cleaned of the nozzle, which affects the scraper's cleaning effect on the residual ink on the surface to be cleaned of the nozzle. Utility Model Content

[0003] In view of this, an embodiment of the present application provides a scraper and an inkjet printer to solve the technical problem in the prior art that the length of the scraper protruding from the surface to be cleaned by the nozzle cannot be accurately controlled, which affects the cleaning effect of the scraper.

[0004] In the first aspect, an embodiment of the present application provides a scraper, which includes: a base; a main body portion, which is connected to the base; and a contact portion, which is located at the top of the scraper along the height direction of the scraper and is connected to the main body portion; wherein the contact portion also includes a raised portion arranged on at least one side of the contact portion along the thickness direction of the scraper, and the raised portion protrudes relative to the contact portion along the thickness direction of the scraper.

[0005] In this embodiment, when the length of the scraper protruding from the surface to be cleaned of the nozzle is short, the main body of the scraper is slightly bent during the movement of the scraper along the first direction under the drive of the motion component, so that the protrusion located on one side of the contact portion along the first direction can be in close contact with the surface to be cleaned of the nozzle, and the surface to be cleaned of the nozzle is cleaned. When the length of the scraper protruding from the surface to be cleaned of the nozzle is long, the degree of bending of the scraper is large during the movement of the scraper along the first direction under the drive of the motion component. At this time, the protrusion located on one side of the contact portion along the first direction can contact with the surface to be cleaned of the nozzle, and the surface to be cleaned is cleaned, and at the same time, the main body of the scraper is also in contact with the surface to be cleaned of the nozzle. Along the first direction, the protrusion is located downstream of the main body, that is, during the movement of the scraper along the first direction, the contact position of the protrusion with the surface to be cleaned of the nozzle is located downstream of the contact position of the main body with the surface to be cleaned of the nozzle, even if the dirt of the main body is attached to the surface to be cleaned of the nozzle, it can be scraped off by the protrusion.

[0006] In a specific embodiment, along the thickness direction of the scraper, the protrusions are arranged on both sides of the contact portion.

[0007] In this embodiment, when the length of the scraper protruding from the surface to be cleaned of the nozzle is short, the main body of the scraper is slightly bent during the movement of the scraper along the first direction under the drive of the motion component, so that the protrusion located on one side of the contact portion along the first direction can be in close contact with the surface to be cleaned of the nozzle, and the surface to be cleaned of the nozzle is cleaned. When the length of the scraper protruding from the surface to be cleaned of the nozzle is long, the degree of bending of the scraper is large during the movement of the scraper along the first direction under the drive of the motion component. At this time, the protrusion located on one side of the contact portion along the first direction can contact the surface to be cleaned of the nozzle, and the surface to be cleaned is cleaned, and at the same time, the main body of the scraper is also in contact with the surface to be cleaned of the nozzle. In this embodiment, since both sides of the contact portion of the scraper have protrusions, the scraper can clean the surface to be cleaned of the nozzle during the movement along the first direction, and the scraper can also clean the surface to be cleaned during the movement along the second direction opposite to the first direction, further improving the cleaning effect. In the process of assembling the inkjet printer, there is no need to fix the installation direction of the scraper, which reduces the difficulty of installation.

[0008] In a specific embodiment, the cross-sectional area of ​​the protrusion gradually decreases along a direction away from the contact portion.

[0009] In this embodiment, the cross-sectional shape of the protrusion may be an inverted triangle along the height direction of the scraper, that is, the cross-sectional area of ​​the protrusion gradually decreases along the direction away from the contact portion, so that the protrusion is in line contact with the surface to be cleaned.

[0010] In a specific embodiment, the cross-sectional shape of the protrusion is triangular, rectangular, or arc-shaped.

[0011] In this embodiment, the cross-sectional shape of the protrusion may be an equilateral triangle along the height direction of the scraper, that is, the cross-sectional area of ​​the protrusion gradually increases along the direction away from the contact portion, so that the protrusion is in linear contact with the surface to be cleaned.

[0012] The cross-sectional shape of the protrusion may also be rectangular, so that the protrusion is in line contact with the surface to be cleaned.

[0013] The cross-sectional shape of the protrusion 131 may also be an arc shape, so that the protrusion is tangent to the surface to be cleaned, and there is a line contact between the two.

[0014] In a specific embodiment, a groove is provided on the top of the contact portion along the height direction of the scraper, and the groove is located between the protrusions along the thickness direction of the scraper.

[0015] In this embodiment, a groove may be provided at the top of the contact portion along the height direction of the scraper, and the groove is located between the two protrusions along the thickness direction of the scraper. The groove can reduce the rigidity of the protrusion and the contact portion, and when the protrusion contacts the surface to be cleaned of the nozzle, the protrusion is easy to bend backward, reducing the reaction force of the protrusion on the surface to be cleaned of the nozzle, thereby reducing the damage caused by the scraper to the surface to be cleaned of the nozzle and extending the service life of the nozzle.

[0016] In a specific embodiment, along the length direction of the scraper, the length of the contact portion is greater than the length of the base.

[0017] In this embodiment, along the length direction of the scraper, the length of the contact portion is greater than the length of the base, which can increase the contact area between the contact portion and the surface to be cleaned by the nozzle, improve the cleaning effect of the scraper, and make the length of the base smaller, which can reduce the overall size of the scraper, reduce the cost of the scraper, and save space for the installation of the scraper.

[0018] In a specific embodiment, the length of the main body portion gradually increases along the direction from the base to the contact portion.

[0019] In the present embodiment, the length of the main body gradually increases along the direction from the base to the contact portion, and the length of the connection between the main body and the base is close to the length of the base, so that the connection between the main body and the base is more stable, the reliability of the scraper is improved, and the service life of the scraper is extended. The length of the connection between the main body and the contact portion is close to the length of the contact portion, so that the main body can provide support for the contact portion and the protrusion. When the scraper is working, the contact between the protrusion and the surface to be cleaned of the nozzle is more stable, thereby improving the cleaning effect of the scraper.

[0020] In a specific embodiment, the scraper is made of rubber or plastic.

[0021] In this embodiment, rubber or plastic has good deformability and is soft in texture. When the scraper contacts the surface to be cleaned of the nozzle, it is easy to bend, thereby reducing damage to the surface to be cleaned of the nozzle due to forced friction of the scraper with the surface to be cleaned. Rubber and plastic also have good resilience. After completing the cleaning of the surface to be cleaned of the nozzle and no longer contacting the surface to be cleaned of the nozzle, they can automatically and quickly return to their initial state, thereby facilitating subsequent cleaning work and simplifying the work steps. At the same time, rubber and plastic have good machinability and low cost, thereby reducing the production cost and difficulty of the scraper.

[0022] In a second aspect, an embodiment of the present application provides an inkjet printer, comprising: a scraper and a nozzle, wherein the nozzle comprises a surface to be cleaned; the scraper can move in a first direction relative to the nozzle, and the protrusion is used to contact the surface to be cleaned.

[0023] In this embodiment, by providing a protrusion on the scraper contact portion, the scraper can effectively clean the surface to be cleaned of the nozzle when the length of the scraper protruding from the surface to be cleaned of the nozzle is longer or shorter, and the risk of dirt on the scraper contaminating the nozzle in reverse can be reduced, thereby improving the cleaning effect of the scraper.

[0024] In a specific embodiment, the inkjet printer further comprises a motion component, wherein the motion component is connected to the base, and the motion component is used to drive the scraper to move along a first direction relative to the surface to be cleaned.

[0025] In this embodiment, when the scraper is installed on the printer, the scraper is installed below the nozzle along the height direction of the scraper. Driven by the moving component, the scraper can move in a direction parallel to the thickness direction of the scraper to complete the cleaning of the surface to be cleaned of the nozzle.

[0026] In a specific embodiment, the motion component is provided with a connecting portion, the base is provided with a mounting groove, and the connecting portion cooperates with the mounting groove.

[0027] In this embodiment, an inwardly recessed mounting groove is provided at the bottom of the base along the height direction of the scraper, and a through hole is provided on the side wall of the base along the thickness direction of the scraper, and the moving component is provided with a corresponding connecting portion. When the scraper is connected to the moving component, the connecting portion is snap-fitted with the mounting groove, so that the connection between the scraper and the moving component is tighter, the connection reliability is improved, the scraper is prevented from falling off due to repeated bending during the cleaning process, and the service life of the scraper is extended.

[0028] In a specific embodiment, a through hole is provided on the side wall of the installation groove, and when the moving component is connected to the base, the connecting portion is engaged with the through hole.

[0029] In this embodiment, the connecting portion can cooperate with the through hole, which plays a positioning role for the installation of the connecting portion and the installation groove, thereby reducing the difficulty of assembly.

[0030] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of a scraper and a nozzle in a specific embodiment;

[0032] Figure 2 This is a schematic structural diagram of a scraper provided in this application in a specific embodiment;

[0033] Figure 3 This is a schematic structural diagram of a scraper and a nozzle provided in this application in a specific embodiment;

[0034] Figure 4 This is a schematic structural diagram of the scraper and the nozzle provided in the present application in another specific embodiment;

[0035] Figure 5 This is a schematic structural diagram of the scraper provided in the present application in another specific embodiment;

[0036] Figure 6 This is a schematic structural diagram of a scraper and a nozzle provided in the present application in another specific embodiment;

[0037] Figure 7 This is a schematic structural diagram of a scraper and a nozzle provided in the present application in another specific embodiment;

[0038] Figure 8 for Figure 5 A cross-sectional view of

[0039] Fig. 9 This is a schematic structural diagram of a scraper provided in the present application in another specific embodiment;

[0040] Fig.10 This is a schematic structural diagram of a scraper provided in the present application in another specific embodiment;

[0041] Fig.11 This is a schematic structural diagram of a scraper provided in the present application in another specific embodiment;

[0042] Fig.12 This is a schematic structural diagram of a scraper provided in the present application in another specific embodiment;

[0043] Fig.13 for Figure 5 Front view of .

[0044] Description of reference numerals:

[0045] 1- Scraper;

[0046] 11- base;

[0047] 111-installation slot;

[0048] 112-through hole;

[0049] 12-The body part;

[0050] 13-Contact part;

[0051] 131- raised portion;

[0052] 132-groove;

[0053] 14-head;

[0054] 2-Sprinkler;

[0055] 21-Surface to be cleaned.

[0056] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0057] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0058] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0059] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0060] Inkjet printers can achieve printing through thermal foaming technology. The nozzles of inkjet printers using thermal foaming technology are mainly composed of resin shells, sponges, filters, ink chambers, chips and other components. The ink flows in from the continuous supply port on the nozzle cover, passes through the sponge ink storage area and enters the ink chamber. The ink in the ink chamber is affected by gravity and fills the chip flow channel at the bottom of the nozzle. In the working state, the inkjet printer transmits instructions to the nozzle, and the nozzle chip uses a heating resistor to instantly heat the ink, so that bubbles are generated in the nozzle chip flow channel, and the ink is squeezed out of the nozzle hole to form ink droplets, which are finally deposited on the paper to form a pattern. The inkjet printer using thermal foaming technology is equipped with a maintenance component, which includes a scraper and a motion component. After the nozzle completes the printing task and returns to the corresponding area of ​​the maintenance component, the maintenance component located in the area starts to work. The scraper contacts the nozzle surface under the drive of the motion component and performs a periodic reciprocating motion, so that the scraper scrapes off the residual ink on the nozzle surface to achieve the purpose of cleaning the nozzle.

[0061] like Figure 1 As shown, Figure 1The schematic diagram of the structure of the scraper 1 and the nozzle 2 in a specific embodiment is shown, wherein the scraper 1 is generally a blade structure with a blade edge, that is, the scraper 1 has a head 14 with a smaller thickness, and the thickness of the body 12 of the scraper 1 is greater than the thickness of the head 14. When the maintenance component is working, the scraper 1 can move along the first direction X1 driven by the motion component, and during the movement, the scraper 1 contacts the surface 21 to be cleaned of the nozzle 2 to clean the surface 21 to be cleaned of the nozzle 2. In order to make the scraper 1 contact the surface 21 to be cleaned of the nozzle 2, the head 14 of the scraper 1 usually exceeds the surface 21 to be cleaned of the nozzle 2.

[0062] However, when the length of the scraper 1 protruding from the nozzle 2 to be cleaned surface 21 is too long, Figure 1 As shown, during the cleaning process, the scraper 1 moves along the first direction X1, causing the scraper 1 to bend excessively. After the scraper 1 bends, its head 14 cannot contact the surface to be cleaned 21 of the nozzle 2, but the main body 12 of the scraper 1 contacts the surface to be cleaned 21 of the nozzle 2. Normally, when the head 14 of the scraper 1 contacts the surface 21 to be cleaned of the nozzle 2, the contact area between the two is small, which is a line contact. However, the area of ​​the main body 12 of the scraper 1 is larger. When it contacts the surface 21 to be cleaned of the nozzle 2, the contact area between the two is larger, which is a surface contact. The residual ink on the surface 21 to be cleaned of the nozzle 2 cannot be cleaned. Moreover, the area of ​​the main body 12 of the scraper 1 is larger, and it carries more dirt. When the main body 12 contacts the surface 21 to be cleaned of the nozzle 2, the dirt carried by the main body 12 of the scraper 1 is easily attached to the surface 21 to be cleaned of the nozzle 2, thereby contaminating the surface 21 to be cleaned of the nozzle 2, and causing the dried dirt to be blocked on the surface 21 to be cleaned of the nozzle 2, causing the nozzle 2 to be blocked. In addition, when the scraper 1 is excessively bent during movement along the first direction X1, the force exerted by the main body 12 of the scraper 1 on the surface to be cleaned 21 of the nozzle 2 is too large, resulting in a large friction between the nozzle 2 and the scraper 1, which can easily damage the nozzle 2.

[0063] To solve this technical problem, the present application provides a scraper 1 and an inkjet printer including the scraper 1, such as Figure 2 As shown, Figure 2 This is a schematic structural diagram of the scraper 1 provided in the present application in a specific embodiment, wherein the scraper 1 comprises: a base 11, a main body 12 and a contact portion 13, wherein the base 11 is used to be connected to a moving component on an inkjet printer, and the moving component is used to drive the scraper 1 to move; the main body 12 is connected to the base 11; along the height direction Z of the scraper 1, the contact portion 13 is located at the top of the scraper 1, and is used to contact with a surface 21 to be cleaned of a nozzle 2 when the scraper 1 moves, thereby completing the cleaning work of the surface 21 to be cleaned of the nozzle 2.

[0064] The thickness direction X, length direction Y and height direction Z of the scraper 1 are Figure 2The thickness direction X of the scraper 1 can be Figure 2 The X direction shown, the length direction Y of the scraper 1 can be Figure 2 The Y direction shown, the height direction Z of the scraper 1 can be Figure 2 When the scraper 1 is installed in the printer, refer to Figure 3 , Figure 3 This is a schematic structural diagram of the scraper 1 and the nozzle 2 provided in the present application in a specific embodiment. The scraper 1 is installed below the nozzle 2 along the height direction Z of the scraper 1. Driven by the motion component, the scraper 1 can move in a direction parallel to the thickness direction X of the scraper 1 to complete the cleaning of the surface 21 to be cleaned of the nozzle 2.

[0065] In the embodiment of the present application, the first direction X1 is a direction parallel to the thickness direction X of the scraper 1 .

[0066] In the present application embodiment, Figure 2 As shown, the contact portion 13 is provided with a protrusion 131 along one side of the scraper 1, and the protrusion 131 is protruded relative to the contact portion 13 along the thickness direction X of the scraper 1. Figure 3 As shown, in the inkjet printer, the protrusion 131 is located at one side of the contact portion 13 along the first direction X1, and the scraper 1 moves along the first direction X1 driven by the moving assembly to complete the cleaning of the surface to be cleaned 21. That is, during the assembly process, the protrusion 131 of the assembled scraper 1 is located at one end of the contact portion 13 along the first direction X1.

[0067] In this embodiment, refer to Figure 3 When the length of the scraper 1 protruding from the surface 21 to be cleaned by the nozzle 2 is short, the main body 12 of the scraper 1 is slightly bent during the movement of the scraper 1 along the first direction X1 under the drive of the motion assembly, so that the protrusion 131 located on one side of the contact portion 13 along the first direction X1 can be in close contact with the surface 21 to be cleaned by the nozzle 2, and the surface 21 to be cleaned by the nozzle 2 is cleaned. Figure 4 , Figure 4This is a schematic diagram of the structure of the scraper 1 and the nozzle 2 provided in the present application in another specific embodiment. When the length of the scraper 1 protruding from the surface 21 to be cleaned of the nozzle 2 is long, the scraper 1 bends to a greater extent during the movement of the scraper 1 along the first direction X1 driven by the motion component. At this time, the protrusion 131 located on one side of the contact portion 13 along the first direction X1 can contact the surface 21 to be cleaned of the nozzle 2 to clean the surface 21 to be cleaned, and at the same time, the body 12 of the scraper 1 is also in contact with the surface 21 to be cleaned of the nozzle 2. Along the first direction X1, the protrusion 131 is located downstream of the body 12, that is, during the movement of the scraper 1 along the first direction X1, the contact position of the protrusion 131 with the surface 21 to be cleaned of the nozzle 2 is located downstream of the contact position of the body 12 with the surface 21 to be cleaned of the nozzle 2, even if the dirt of the body 12 is attached to the surface 21 to be cleaned of the nozzle 2, it can be scraped off by the protrusion 131.

[0068] Therefore, in the embodiment of the present application, a protrusion 131 is provided on the contact portion 13 of the scraper 1 so that when the length of the scraper 1 protruding from the surface to be cleaned 21 of the nozzle 2 is longer or shorter, the surface to be cleaned 21 of the nozzle 2 can be effectively cleaned, and the risk of reverse contamination of the nozzle 2 by dirt on the scraper 1 can be reduced, thereby improving the cleaning effect of the scraper 1.

[0069] In a specific embodiment, Figure 5 As shown, Figure 5 The schematic structural diagram of the scraper 1 provided in the present application in another specific embodiment shows that along the thickness direction X of the scraper 1 , the protrusions 131 are arranged on both sides of the contact portion 13 .

[0070] In a specific embodiment, Figure 5 As shown, along the direction from the base 11 to the contact portion 13, the length of the main body 12 gradually increases, and the length of the connection between the main body 12 and the base 11 is close to the length of the base 11, so that the connection between the main body 12 and the base 11 is more stable, the reliability of the scraper 1 is improved, and the service life of the scraper 1 is extended. The length of the connection between the main body 12 and the contact portion 13 is close to the length of the contact portion 13, so that the main body 12 can provide support for the contact portion 13 and the protrusion 131. When the scraper 1 is working, the contact between the protrusion 131 and the surface to be cleaned 21 of the nozzle 2 is more stable, thereby improving the cleaning effect of the scraper 1.

[0071] Please refer to Figure 6 , Figure 6This is a schematic diagram of the structure of the scraper 1 and the nozzle 2 provided in the present application in another specific embodiment. When the length of the scraper 1 protruding from the surface 21 to be cleaned by the nozzle 2 is short, the main body 12 of the scraper 1 is slightly bent during the movement of the scraper 1 along the first direction X1 under the drive of the motion component, so that the protrusion 131 located on the side of the contact portion 13 along the first direction X1 can be in close contact with the surface 21 to be cleaned by the nozzle 2, and the surface 21 to be cleaned by the nozzle 2 is cleaned. Figure 7 , Figure 7 This is a schematic diagram of the structure of the scraper 1 and the nozzle 2 provided in the present application in another specific embodiment. When the length of the scraper 1 protruding from the surface 21 to be cleaned of the nozzle 2 is long, the scraper 1 bends to a greater extent during the movement of the scraper 1 along the first direction X1 under the drive of the motion component. At this time, the protrusion 131 located on one side of the contact portion 13 along the first direction X1 can contact the surface 21 to be cleaned of the nozzle 2 to clean the surface 21 to be cleaned, and at the same time, the body 12 of the scraper 1 is also in contact with the surface 21 to be cleaned of the nozzle 2. In this embodiment, since both sides of the contact portion 13 of the scraper 1 have protrusions 131, the scraper 1 can clean the surface 21 to be cleaned of the nozzle 2 during the movement along the first direction X1, and can also clean the surface 21 to be cleaned during the movement of the scraper 1 along the second direction opposite to the first direction X1, further improving the cleaning effect. In the process of assembling the inkjet printer, there is no need to fix the installation direction of the scraper 1, which reduces the difficulty of installation.

[0072] In a specific embodiment, the raised portion 131 is in line contact with the surface to be cleaned 21, so that the contact area between the two is smaller, which can enhance the cleaning force of the scraper 1 on the surface of the nozzle 2. When the contact area between the two is smaller, the risk of dirt of the scraper 1 adhering to the surface to be cleaned 21 of the nozzle 2 can also be reduced, thereby enhancing the cleaning effect of the surface to be cleaned 21 of the nozzle 2.

[0073] In order to make the protrusion in line contact with the surface to be cleaned of the nozzle, the protrusion may be a structure in the following embodiments.

[0074] like Figure 8 In the embodiment shown, Figure 8 for Figure 5 In the cross-sectional view, the cross-sectional shape of the raised portion 131 can be an inverted triangle along the height direction Z of the scraper 1, that is, the cross-sectional area of ​​the raised portion 131 gradually decreases along the direction away from the contact portion 13, so that the raised portion 131 is in linear contact with the surface to be cleaned 21.

[0075] like Fig. 9 In the embodiment shown, Fig. 9This is a schematic structural diagram of the scraper 1 provided in the present application in another specific embodiment. The cross-sectional shape of the protrusion 131 can be an equilateral triangle along the height direction Z of the scraper 1, that is, the cross-sectional area of ​​the protrusion 131 gradually increases in the direction away from the contact portion 13, so that the protrusion 131 is in line contact with the surface 21 to be cleaned.

[0076] like Fig.10 In the embodiment shown, Fig.10 This is a schematic structural diagram of another specific embodiment of the scraper 1 provided in the present application. The cross-sectional shape of the protrusion 131 can be rectangular, so that the protrusion 131 is in line contact with the surface 21 to be cleaned.

[0077] like Fig.11 In the embodiment shown, Fig.11 This is a schematic structural diagram of another specific embodiment of the scraper 1 provided in the present application. The cross-sectional shape of the protrusion 131 can be arc-shaped, so that the protrusion 131 is tangent to the surface to be cleaned 21, and there is a line contact between the two.

[0078] like Fig.12 In the embodiment shown, Fig.12 This is a schematic diagram of the structure of the scraper 1 provided in the present application in another specific embodiment. A groove 132 may be provided at the top of the contact portion 13 along the height direction Z of the scraper 1. The groove 132 is located between the two protrusions 131 along the height direction Z of the scraper 1. The groove 132 can reduce the rigidity of the protrusion 131 and the contact portion 13. When the protrusion 131 contacts the surface 21 to be cleaned of the nozzle 2, the protrusion 131 is easy to bend backward, reducing the reaction force of the protrusion 131 on the surface 21 to be cleaned of the nozzle 2, thereby reducing the damage caused by the scraper 1 to the surface 21 to be cleaned of the nozzle 2 and extending the service life of the nozzle 2.

[0079] In a specific embodiment, Fig.13 As shown, Fig.13 for Figure 5 In the front view, along the length direction Y of the scraper 1, the length of the contact portion 13 is greater than the length of the base 11, which can increase the contact area between the contact portion 13 and the surface 21 to be cleaned of the nozzle 2, improve the cleaning effect of the scraper 1, and make the length of the base 11 smaller, which can reduce the overall size of the scraper 1, reduce the cost of the scraper 1, and save space for the installation of the scraper 1.

[0080] In a specific embodiment, Fig.12 As shown, the base 11 may be provided with a mounting groove 111 , and the moving component may be provided with a connecting portion corresponding to the mounting groove 111 .

[0081] In this embodiment, along the height direction Z of the scraper 1, the bottom of the base 11 is provided with an inwardly recessed mounting groove 111, and along the thickness direction X of the scraper 1, a through hole 112 is provided on the side wall of the base 11, and the moving assembly (not shown in the figure) is provided with a corresponding connecting portion. When the scraper 1 is connected to the moving assembly, the connecting portion and the mounting groove 111 are engaged and matched, so that the connection between the scraper 1 and the moving assembly is tighter, the connection reliability is improved, and the scraper 1 is prevented from falling off due to repeated bending during the cleaning process, thereby extending the service life of the scraper 1. The connecting portion can cooperate with the through hole 112 to play a positioning role for the installation of the connecting portion and the mounting groove 111, thereby reducing the difficulty of assembly. At the same time, the mounting groove 111 is set to be a groove 132 inside the base 11, which can save space while improving the connection reliability, reduce the overall size of the scraper 1 after being connected to the moving assembly, and save costs.

[0082] In a specific embodiment, Fig.12 As shown, through holes 112 can be provided on both side walls of the base 11 along the thickness direction X of the scraper 1, so as to further improve the reliability of the connection between the scraper 1 and the moving component, so that when the scraper 1 is driven by the moving component to reciprocate relative to the surface 21 to be cleaned by the nozzle 2, the scraper 1 can be prevented from falling off, thereby improving the reliability and safety of the scraper 1.

[0083] In another specific embodiment, a card slot (not shown in the figure) can be provided on the side wall of the base 11. When the moving component is connected to the base 11, the connecting part can be engaged with the card slot, which plays a positioning role for the installation of the connecting part and the installation slot 111. At the same time, when the scraper 1 reciprocates relative to the surface 21 to be cleaned by the nozzle 2, the scraper 1 is prevented from falling off, thereby improving the connection reliability and use safety of the scraper 1 and the moving component.

[0084] In the above embodiments, the scraper 1 can be made of rubber or plastic. Rubber or plastic has good deformability and is soft in texture. When the scraper 1 contacts the surface 21 to be cleaned of the nozzle 2, it is easy to bend, which reduces the damage to the surface 21 to be cleaned of the nozzle 2 caused by the forced friction of the scraper 1 on the surface 21 to be cleaned of the nozzle 2. Rubber and plastic also have good resilience. After the surface 21 to be cleaned of the nozzle 2 is cleaned and no longer in contact with the surface 21 to be cleaned of the nozzle 2, it can automatically and quickly return to its initial state, which is convenient for subsequent cleaning work and simplifies the work steps. At the same time, rubber and plastic have good processability and low cost, which reduces the production cost and difficulty of the scraper 1.

[0085] The above is only a specific implementation of the embodiment of the present application, but the protection scope of the embodiment of the present application is not limited thereto, and any changes or replacements within the technical scope disclosed in the embodiment of the present application should be included in the protection scope of the embodiment of the present application. Therefore, the protection scope of the embodiment of the present application should be based on the protection scope of the claims.

Claims

1. A scraper, characterized in that: The scraper comprises: Base; A main body portion, the main body portion being connected to the base; A contact portion, along the height direction of the scraper, the contact portion is located at the top of the scraper and connected to the main body; Wherein, the contact portion further includes a protrusion provided on at least one side of the contact portion along the thickness direction of the scraper, and the protrusion protrudes relative to the contact portion along the thickness direction of the scraper.

2. The scraper according to claim 1, characterized in that: The protrusions are arranged on both sides of the contact portion along the thickness direction of the scraper.

3. The scraper according to claim 2, characterized in that: Along the direction away from the contact portion, the cross-sectional area of ​​the protrusion gradually decreases.

4. The scraper according to claim 2, characterized in that: The cross-sectional shape of the protrusion is triangular, rectangular or arc-shaped.

5. The scraper according to claim 2, characterized in that: A groove is arranged on the top of the contact portion along the height direction of the scraper, and the groove is located between the protrusions along the thickness direction of the scraper.

6. The scraper according to any one of claims 1 to 5, characterized in that: Along the length direction of the scraper, the length of the contact portion is greater than the length of the base.

7. The scraper according to claim 6, characterized in that: Along the direction from the base to the contact portion, the length of the main body portion gradually increases.

8. The scraper according to any one of claims 1 to 5, characterized in that: The scraper is made of rubber or plastic.

9. An inkjet printer, characterized in that: The inkjet printer comprises: A scraper, wherein the scraper is the scraper according to any one of claims 1 to 8; a spray head, the spray head including a surface to be cleaned; The scraper can move along a first direction relative to the nozzle, and the protrusion is used to contact the surface to be cleaned.

10. The inkjet printer according to claim 9, characterized in that: The inkjet printer further comprises a moving component, wherein the moving component is connected to the base and is used for driving the scraper to move along a first direction relative to the surface to be cleaned.

11. The inkjet printer according to claim 10, characterized in that: The motion component is provided with a connecting portion, the base is provided with a mounting groove, and the connecting portion cooperates with the mounting groove.

12. The inkjet printer according to claim 11, characterized in that: The side wall of the installation groove is provided with a through hole, and when the moving component is connected to the base, the connecting part is engaged with the through hole.

Images