Nozzle cleaning device and ink-jet printer

Abstract

The utility model provides a nozzle cleaning device and an ink-jet printer, and relates to the technical field of printing equipment, the nozzle cleaning device comprises a cleaning tank, a cleaning mechanism and a driving mechanism; the cleaning tank comprises a main tank and two end plates, the main tank comprises a bottom plate and wall plates arranged on the two sides of the bottom plate, the main tank is of an integrated structure, and the two end plates are arranged at two ports of the main tank respectively; the cleaning mechanism is arranged in the cleaning tank and comprises a displacement assembly and a cleaning assembly, the moving direction of the displacement assembly is the same as the extending direction of the cleaning tank, the cleaning assembly is in transmission connection with the displacement assembly, and the highest height of the cleaning assembly is larger than that of the cleaning tank; the driving mechanism is in transmission connection with the displacement assembly. The cleaning tank is composed of the main tank and the end plates at the two ends, the structure is simple, installation is very convenient, and due to the fact that the main tank is of an integrated structure, the sealing performance of the main tank is excellent, and the phenomenon that leakage occurs or external impurities enter the tank body is not prone to occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a nozzle cleaning device and an inkjet printer. Background Art

[0002] Inkjet printers convert colored liquid ink into tiny particles through nozzles and spray them onto printed paper or other printed items. Industrial inkjet printers are larger in size and are often used to print on items such as cardboard and cloth. During the printing process, the guide belt inside the industrial inkjet printer holds and transports the items, and then prints on the items through the nozzles.

[0003] After printing, the nozzle (nozzle) of the inkjet printer needs to be cleaned. The cleaning device usually includes a tank body and a cleaning component, which is used to hold and install the cleaning component, and then the nozzle is cleaned by the cleaning component. Since the cleaning component is installed in the tank body, the impurities and dirt cleaned from the nozzle by the cleaning component are stored in the tank body after cleaning. Therefore, the sealing performance of the tank body is required to be high. If the sealing performance of the tank body is poor, the impurities and dirt cleaned out are easy to leak from the tank body, and dust and other impurities are easy to enter the tank body, resulting in contamination of the cleaning component and failure to effectively clean the nozzle.

[0004] The tank body in the traditional cleaning device is a combined structure formed by connecting multiple plates. It has too many parts, is complicated to install, and is difficult to ensure sealing. Utility Model Content

[0005] The utility model aims to provide a nozzle cleaning device to alleviate the technical problems in the prior art that the tank body is a combined structure formed by connecting multiple plates, the number of parts is too large, the installation is cumbersome and the sealing is difficult to ensure.

[0006] The utility model provides a nozzle cleaning device, comprising: a cleaning tank, a cleaning mechanism and a driving mechanism; the cleaning tank comprises a main tank and an end plate, the main tank comprises a bottom plate and wall plates arranged on both sides of the bottom plate, the main tank is an integrated structure, the end plates are two, and the two end plates are respectively arranged at two ends of the main tank; the cleaning mechanism is arranged in the cleaning tank, the cleaning mechanism comprises a displacement component and a cleaning component, the moving direction of the displacement component is the same as the extending direction of the cleaning tank, the cleaning component is transmission-connected to the displacement component, and the highest height of the cleaning component is greater than the highest height of the cleaning tank; the driving mechanism is transmission-connected to the displacement component.

[0007] Furthermore, a drainage hole is provided on the bottom plate; a sealing plug is installed in the drainage hole.

[0008] Furthermore, an overflow hole is arranged on the wall plate; the highest height of the overflow hole is smaller than the lowest height of the cleaning assembly.

[0009] Furthermore, a sealing ring is provided between the end plate and the main groove; and sealant is filled between the end plate and the main groove.

[0010] Furthermore, the displacement assembly includes a transmission roller and a conveyor belt; there are two transmission rollers, both of which are arranged in the cleaning tank and located at both ends of the cleaning tank; the conveyor belt is connected to the two transmission rollers in a transmission manner, and the cleaning assembly is arranged on the side of the conveyor belt away from the transmission roller.

[0011] Furthermore, the cleaning component includes a mounting seat and an elastic cleaning member; there are multiple mounting seats, the multiple mounting seats are detachable and arranged on the conveyor belt at intervals, and the mounting seat has a mounting groove with a notch perpendicular to the conveyor belt; the elastic cleaning member is detachably arranged in the mounting groove, and the maximum height of the elastic cleaning member is greater than the maximum height of the cleaning groove.

[0012] Furthermore, the wall panel has a supporting portion; the supporting portion is located in the groove, and the top surface of the supporting portion is in contact with the bottom surface of the conveyor belt.

[0013] Furthermore, the conveyor belt is provided with an induction key; the wall panel is provided with a detection hole, and the detection hole is used to install a proximity switch.

[0014] Furthermore, a connecting hole is provided on the wall plate; the driving mechanism comprises a driving motor, and a rotating shaft of the driving motor is transmission-connected to the displacement assembly through the connecting hole.

[0015] The utility model also aims to provide an inkjet printer, comprising a nozzle, a lifting mechanism and a nozzle cleaning device; the nozzle faces downward; the lifting mechanism is arranged below the nozzle; the nozzle cleaning device is arranged between the nozzle and the lifting mechanism and is transmission-connected to the lifting mechanism.

[0016] Beneficial effects:

[0017] The nozzle cleaning device provided by the utility model comprises a cleaning tank, a cleaning mechanism and a driving mechanism; the cleaning tank comprises a main tank and end plates, the main tank comprises a bottom plate and wall plates arranged on both sides of the bottom plate, the main tank is an integrated structure, there are two end plates, and the two end plates are respectively arranged at two ends of the main tank; the cleaning mechanism is arranged in the cleaning tank, the cleaning mechanism comprises a displacement component and a cleaning component, the moving direction of the displacement component is the same as the extending direction of the cleaning tank, the cleaning component is transmission-connected to the displacement component, and the highest height of the cleaning component is greater than the highest height of the cleaning tank; the driving mechanism is transmission-connected to the displacement component.

[0018] Specifically, when the utility model is in use, the driving mechanism drives the displacement component of the cleaning mechanism to move, and the cleaning component moves along the extension direction of the cleaning tank to scrape the nozzle, thereby cleaning the nozzle, and the dirt and impurities cleaned fall into the cleaning tank. The cleaning tank is composed of a main tank and end plates at both ends. The structure is simple and the installation is very convenient. Moreover, since the main tank is an integrated structure, the sealing performance of the main tank is excellent, and it is not easy to leak or have foreign impurities enter the tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a nozzle cleaning device provided in an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the top view of the nozzle cleaning device provided in an embodiment of the utility model;

[0022] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at A-A in the middle.

[0023] icon:

[0024] 100 - cleaning tank; 110 - main tank; 111 - bottom plate; 1111 - drainage hole; 112 - wall plate; 1121 - overflow hole; 1122 - detection hole; 120 - end plate;

[0025] 200 - cleaning mechanism; 210 - displacement assembly; 211 - transmission roller; 212 - conveyor belt; 220 - cleaning assembly; 221 - mounting seat; 2120 - induction key; 222 - elastic cleaning part;

[0026] 300 - Driving mechanism. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0034] See also Figures 1 to 3 The nozzle cleaning device provided in this embodiment includes a cleaning tank 100, a cleaning mechanism 200 and a driving mechanism 300.

[0035] The cleaning tank 100 includes a main tank 110 and an end plate 120. The main tank 110 includes a bottom plate 111 and wall plates 112 arranged on both sides of the bottom plate 111. The main tank 110 is an integrated structure. There are two end plates 120. The two end plates 120 are respectively arranged at two ends of the main tank 110. The cleaning mechanism 200 is arranged in the cleaning tank 100. The cleaning mechanism 200 includes a displacement component 210 and a cleaning component 220. The moving direction of the displacement component 210 is the same as the extension direction of the cleaning tank 100. The cleaning component 220 is connected to the displacement component 210 in a transmission manner. The highest height of the cleaning component 220 is greater than the highest height of the cleaning tank 100. The driving mechanism 300 is connected to the displacement component 210 in a transmission manner.

[0036] The driving mechanism 300 drives the displacement component 210 of the cleaning mechanism 200 to move, and the cleaning component 220 moves along the extension direction of the cleaning tank 100 to scrape the nozzle, thereby cleaning the nozzle, and the cleaned dirt and impurities fall into the cleaning tank 100.

[0037] The cleaning tank 100 in this embodiment is composed of a main tank 110 and end plates 120 at both ends. It has a simple structure and is very convenient to install. In addition, since the main tank 110 is an integrated structure, the main tank 110 has excellent sealing performance and is not prone to leakage or foreign impurities entering the tank body.

[0038] The main slot 110 in this embodiment uses an extruded profile as a blank, specifically an aluminum alloy, and produces a long C-shaped slot body by extrusion. When targeting nozzles with different arrangement forms, the C-shaped slot can be cut according to the distribution area and length of the nozzles, so as to obtain a main slot 110 that meets the use requirements, which is very convenient to use.

[0039] Furthermore, in this embodiment, the connection between the main tank 110 and the wall plate 112 is sealed to ensure the sealing of the cleaning tank 100 .

[0040] In this embodiment, a drainage hole 1111 is provided on the bottom plate 111. A sealing plug is installed in the drainage hole 1111.

[0041] The drain hole 1111 is used to drain the accumulated liquid in the cleaning tank 100. After the nozzle cleaning device is used for cleaning multiple times, the sealing plug can be removed to drain the accumulated liquid and debris in the tank so that the nozzle cleaning device can be used continuously in the future.

[0042] In this embodiment, an overflow hole 1121 is provided on the wall plate 112. The highest height of the overflow hole 1121 is smaller than the lowest height of the cleaning assembly 220.

[0043] The overflow hole 1121 can discharge part of the accumulated liquid when there is too much accumulated liquid in the cleaning tank 100, so as to avoid the accumulated liquid not being discharged in time when there is too much accumulated liquid, causing the accumulated liquid to contaminate the cleaning component 220, causing the cleaning component 220 to be contaminated and the nozzle cannot be effectively cleaned.

[0044] In this embodiment, a sealing ring is provided between the end plate 120 and the main groove 110. The space between the end plate 120 and the main groove 110 is filled with sealant.

[0045] Specifically, the sealing ring in this embodiment is a plastic ring with stable chemical properties and good elasticity. The end plate 120 and the main groove 110 are respectively fitted with the two end surfaces of the sealing ring. The end plate 120, the sealing ring and the main groove 110 are connected in sequence by bolts, and pressure is applied to clamp the sealing ring, thereby achieving the seal between the end plate 120 and the main groove 110. The end plate 120 and the sealing ring, and the sealing ring and the main groove 110 are both secondary sealed by sealant, thereby further enhancing the sealing performance.

[0046] In this embodiment, the displacement assembly 210 includes a transmission roller 211 and a conveyor belt 212. There are two transmission rollers 211, and the two transmission rollers 211 are both arranged in the cleaning tank 100 and at both ends of the cleaning tank 100. The conveyor belt 212 is in transmission connection with the two transmission rollers 211, and the cleaning assembly 220 is arranged on the side of the conveyor belt 212 away from the transmission roller 211.

[0047] Specifically, the two transmission rollers 211 in this embodiment are respectively an active roller and a driven roller, and the two ends of the transmission belt are respectively connected to the active roller and the driven roller. The active roller is connected to the driving mechanism 300 to drive the conveyor belt 212 to rotate, and the driven roller rotates with the transmission belt, thereby realizing the movement of the conveyor belt 212.

[0048] In this embodiment, the cleaning assembly 220 includes a mounting seat 221 and an elastic cleaning member 222. There are multiple mounting seats 221, and the multiple mounting seats 221 are detachably and spaced apart on the conveyor belt 212. The mounting seats 221 have mounting grooves with notches perpendicular to the conveyor belt 212. The elastic cleaning member 222 is detachably disposed in the mounting groove, and the highest height of the elastic cleaning member 222 is greater than the highest height of the cleaning groove 100.

[0049] The elastic cleaning member 222 in this embodiment is an elastic scraper made of polyurethane, which has good elasticity and stable chemical properties. The elastic scraper is inserted into the mounting groove, and the bottom of the elastic scraper is locked with the mounting seat 221 by screws. When cleaning, the driving mechanism 300 drives the conveyor belt 212 to move, so that the elastic scraper can move along the extension direction of the cleaning tank 100, thereby scraping the nozzle above the cleaning tank 100.

[0050] Furthermore, in the present embodiment, the top thickness of the scraper blade is relatively small and is an inclined structure, which can reduce damage to the nozzle when it contacts and scrapes the nozzle, thereby preventing the nozzle from being damaged due to the scraping action.

[0051] In this embodiment, the wall plate 112 has a supporting portion. The supporting portion is located in the groove, and the top surface of the supporting portion is in contact with the bottom surface of the conveyor belt 212.

[0052] Specifically, the support portion in this embodiment extends in the horizontal direction, and the extension direction is the same as the extension direction of the transmission belt. When the conveyor belt 212 carried by the cleaning component 220 moves to the slot, the top surface of the support portion abuts against the side of the conveyor belt 212 facing away from the cleaning component 220, thereby supporting the middle section of the conveyor belt 212 and preventing the middle section of the conveyor belt 212 from being deformed due to pressure when the cleaning component 220 is scraping, causing the middle section of the conveyor belt 212 to fall, resulting in the top end of the scraper being unable to scrape off dirt and impurities on the nozzle surface.

[0053] In this embodiment, a sensing key 2120 is provided on the conveyor belt 212. A detection hole 1122 is provided on the wall plate 112, and the detection hole 1122 is used to install a proximity switch.

[0054] In this embodiment, the scraper blade and the mounting seat 221 follow the conveyor belt 212 under the rotation of the active roller. After one scraping, the active roller continues to rotate, so that the scraper blade and the mounting seat 221 follow the conveyor belt 212 to move into the cleaning tank 100, and the active roller stops rotating. When scraping is required again, the active roller rotates again, so that the scraper blade and the mounting seat 221 follow the transmission belt from the cleaning tank 100 to the top of the cleaning tank 100 for scraping. The induction key 2120 can trigger the proximity switch installed at the detection hole 1122, so as to determine whether the scraper blade and the mounting seat 221 need to be moved outside the cleaning tank 100 for scraping, and when scraping is required, the driving device is promptly controlled to drive the active roller to rotate to drive the conveyor belt 212 to move, so that the scraper blade and the mounting seat 221 move to perform the scraping action.

[0055] In this embodiment, a connection hole is provided on the wall plate 112. The driving mechanism 300 includes a driving motor, and the rotating shaft of the driving motor is transmission-connected to the displacement assembly 210 through the connection hole.

[0056] The rotating shaft of the driving motor can be directly inserted into the connecting hole and connected to the driving roller, or can be connected to the driving roller by gear transmission to achieve transmission, thereby driving the conveyor belt 212 to move. Among them, the driving motor can be selected from a variety of motors such as stepper motors, servo motors, three-phase asynchronous motors, etc. according to the needs of the municipal bureau. In this embodiment, the driving motor is a servo motor.

[0057] In addition, shaft holes are provided on the two wall plates 112 of the main groove 110 in this embodiment, and the rotating shafts of the active roller and the driven roller are connected to the bearings and inserted into the shaft holes.

[0058] Furthermore, the shaft hole of the active roller is the connecting hole. The driving motor in this embodiment is disposed on the outer wall of the cleaning tank 100 , and the rotating shaft of the driving motor is connected to the driving shaft through gear transmission.

[0059] In addition, a sealing cover is provided on the outer wall of the cleaning tank 100 to cover and seal the shaft hole. The number of the sealing covers is the same as the number of the exposed shaft holes, and the sealing cover is fastened to the wall plate 112 by screws to prevent the shaft hole from having gaps and affecting the sealing of the cleaning tank 100.

[0060] The inkjet printer provided in this embodiment includes a nozzle, a lifting mechanism and a nozzle cleaning device. The nozzle faces downward. The lifting mechanism is arranged below the nozzle. The nozzle cleaning device is arranged between the nozzle and the lifting mechanism and is transmission-connected to the lifting mechanism.

[0061] Specifically, after the inkjet printer finishes printing, there are stains and a small amount of impurities remaining on the nozzle, and the lifting mechanism operates to drive the nozzle cleaning device to move up until the top of the scraper of the nozzle cleaning device can touch the nozzle. At this time, the scraper and the mounting seat 221 are located in the cleaning tank 100, and the drive motor operates to drive the active roller to move. The scraper and the mounting seat 221 follow the conveyor belt 212 to move to the top of the cleaning tank 100 under the rotation of the active roller, and the conveyor belt 212 continues to move to drive the scraper to scrape the nozzle once. After scraping, the active roller continues to rotate, so that the scraper and the mounting seat 221 follow the conveyor belt 212 to move into the cleaning tank 100, and the active roller stops rotating. When scraping is required again, the active roller rotates again, so that the scraper and the mounting seat 221 follow the transmission belt from the cleaning tank 100 to the top of the cleaning tank 100 for scraping.

[0062] Among them, the cleaning tank 100 of the nozzle cleaning device is composed of a main tank 110 and end plates 120 at both ends. It has a simple structure and is very convenient to install. Moreover, since the main tank 110 is an integrated structure, the main tank 110 has excellent sealing performance and is not prone to leakage or external impurities entering the tank body.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A nozzle cleaning device, characterized in that: include: A cleaning tank (100), a cleaning mechanism (200) and a driving mechanism (300); The cleaning tank (100) comprises a main tank (110) and an end plate (120); the main tank (110) comprises a bottom plate (111) and wall plates (112) arranged on both sides of the bottom plate (111); the main tank (110) is an integrated structure; there are two end plates (120), and the two end plates (120) are respectively arranged at two ends of the main tank (110); The cleaning mechanism (200) is arranged in the cleaning tank (100), and comprises a displacement component (210) and a cleaning component (220); the movement direction of the displacement component (210) is the same as the extension direction of the cleaning tank (100); the cleaning component (220) is transmission-connected to the displacement component (210); and the highest height of the cleaning component (220) is greater than the highest height of the cleaning tank (100); The driving mechanism (300) is in transmission connection with the displacement assembly (210).

2. The nozzle cleaning device according to claim 1, characterized in that: The bottom plate (111) is provided with a drainage hole (1111); A sealing plug is installed in the drainage hole (1111).

3. The nozzle cleaning device according to claim 2, characterized in that: The wall plate (112) is provided with an overflow hole (1121); The highest height of the overflow hole (1121) is smaller than the lowest height of the cleaning assembly (220).

4. The nozzle cleaning device according to any one of claims 1 to 3, characterized in that: A sealing ring is provided between the end plate (120) and the main groove (110); The space between the end plate (120) and the main groove (110) is filled with sealant.

5. The nozzle cleaning device according to claim 1, characterized in that: The displacement assembly (210) comprises a transmission roller (211) and a conveyor belt (212); There are two transmission rollers (211), and the two transmission rollers (211) are both arranged in the cleaning tank (100) and located at two ends of the cleaning tank (100); The conveyor belt (212) is in driving connection with the two driving rollers (211), and the cleaning component (220) is arranged on a side of the conveyor belt (212) that is away from the driving rollers (211).

6. The nozzle cleaning device according to claim 5, characterized in that: The cleaning component (220) comprises a mounting seat (221) and an elastic cleaning member (222); There are a plurality of mounting seats (221), and the plurality of mounting seats (221) are detachably and spaced apart on the conveyor belt (212), and the mounting seats (221) have mounting grooves with notches perpendicular to the conveyor belt (212); The elastic cleaning member (222) is detachably disposed in the installation groove, and the highest height of the elastic cleaning member (222) is greater than the highest height of the cleaning groove (100).

7. The nozzle cleaning device according to claim 5, characterized in that: The wall panel (112) has a supporting portion; The support portion is located in the groove, and the top surface of the support portion is in contact with the bottom surface of the conveyor belt (212).

8. The nozzle cleaning device according to claim 5, characterized in that: The conveyor belt (212) is provided with a sensing key (2120); The wall plate (112) is provided with a detection hole (1122), and the detection hole (1122) is used for installing a proximity switch.

9. The nozzle cleaning device according to claim 1, characterized in that: The wall plate (112) is provided with a connection hole; The driving mechanism (300) comprises a driving motor, and the rotating shaft of the driving motor is drivingly connected to the displacement assembly (210) through the connecting hole.

10. An inkjet printer, characterized in that: It comprises a nozzle, a lifting mechanism and a nozzle cleaning device as claimed in any one of claims 1 to 9; The nozzle is directed downward; The lifting mechanism is arranged below the nozzle; The nozzle cleaning device is arranged between the nozzle and the lifting mechanism and is transmission-connected to the lifting mechanism.

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