Nozzle maintenance device and inkjet equipment having the same

Abstract

The present application relates to a nozzle maintenance device, including: an ink shell, an ink scraping assembly, a moving assembly, a driving assembly and a nozzle cover tightening assembly; the moving assembly is arranged on the side wall of the ink shell, and the driving end of the moving assembly is suitable for driving the ink shell to move; the ink shell is provided with a cavity with an opening at one end, and the ink scraping assembly, the nozzle cover tightening assembly and the driving assembly are all arranged inside the cavity of the ink shell; the ink scraping side of the ink scraping assembly protrudes from the open end of the ink shell, the driving end of the driving assembly is connected to the ink scraping assembly, and the driving assembly is suitable for driving the ink scraping assembly to move in the ink shell; the ink shell is provided with an ink discharge port. The ink scraping side of the ink scraping assembly protrudes from the ink shell and is suitable for contacting the nozzle to perform ink scraping maintenance on the nozzle, the driving assembly is suitable for driving the ink scraping assembly to move so as to realize the ink scraping process, and the ink shell can collect the ink generated by ink pressing and the ink scraped by the ink scraping assembly while maintaining the internal equipment.

Description

Technical Field

[0001] The present application relates to the technical field of inkjet printers, and in particular to a nozzle maintenance device and an inkjet printer having the same. Background Art

[0002] With the rapid development of my country's economy, barcode printing has been popularized in many industries, especially in the cigarette and medicine packaging printing industries, and 100% product coding has been achieved. The equipment used for product coding is the inkjet printer. At present, DOD (Drop on Demand) inkjet printers almost occupy the inkjet equipment in all industries. When the DOD inkjet printer is not used for a long time, it is inevitable that ink residue will be generated at the nozzle, resulting in nozzle blockage after air drying, which directly affects the quality of subsequent printing. Therefore, when the inkjet printer is not used for a long time, it is necessary to discharge the ink, bubbles and impurities inside the nozzle by pressing the ink, and then clean the nozzle. The current cleaning method is manual cleaning. The manual cleaning method not only takes up labor costs and time costs, but also has many uncertainties, and the probability of error is relatively high. Excessive force may damage the nozzle, thereby affecting the normal printing work. For this reason, this application proposes a nozzle maintenance device for inkjet printers, which is suitable for scraping ink and cleaning the nozzle. Summary of the invention

[0003] In view of this, the present application proposes a nozzle maintenance device.

[0004] According to one aspect of the present application, a nozzle maintenance device is provided, comprising: an ink shell, an ink scraping assembly, a moving assembly, a driving assembly and a nozzle cover tightening assembly;

[0005] The moving component is arranged on the side wall of the ink shell, and the driving end of the moving component is suitable for driving the ink shell to move;

[0006] The ink shell is provided with a cavity with an opening at one end, and the ink scraping assembly, the nozzle cover tightening assembly and the driving assembly are all arranged inside the cavity of the ink shell;

[0007] The ink scraping side of the ink scraping assembly protrudes out of the opening end of the ink shell, and the driving end of the driving assembly is connected to the ink scraping assembly, and the driving assembly is suitable for driving the ink scraping assembly to move in the ink shell;

[0008] The ink shell is provided with an ink discharge port.

[0009] In a possible implementation, the moving assembly includes: a first gear and a matching rack;

[0010] The rack is arranged on one side of the ink shell, and the first gear is meshed and connected with the rack, and is suitable for driving the ink shell to move when the first gear rotates.

[0011] In a possible implementation, the ink scraping assembly includes: a scraper and a connecting member;

[0012] The connecting piece is movably connected to the ink shell, the scraper is arranged on one side of the connecting piece, and the side of the connecting piece provided with the scraper protrudes out of the opening end of the ink shell.

[0013] In a possible implementation, the main body of the ink shell is a rectangular parallelepiped structure;

[0014] Limiting parts are arranged on both sides of the opening end of the ink shell, and the connecting piece is connected to the limiting parts.

[0015] In a possible implementation, the driving assembly includes: a driving motor and a first screw rod;

[0016] The driving end of the driving motor is transmission-connected to the first screw rod and is suitable for driving the first screw rod to rotate;

[0017] The length direction of the first screw rod is parallel to the length direction of the ink shell, and the connecting piece is sleeved on the first screw rod and can move along the length direction of the first screw rod.

[0018] In a possible implementation, the driving assembly further includes: a second gear and a third gear;

[0019] The driving end of the driving motor is connected to the center of the second gear for driving the second gear to rotate. The second gear is meshed with the third gear. The center of the third gear is connected to the first screw for driving the first screw to rotate.

[0020] In a possible implementation, the nozzle cover tightening assembly includes: a tightening portion and a fixing seat:

[0021] The tightening part is arranged on the top surface of the fixing seat, and a rubber ring is arranged on the top surface of the tightening part.

[0022] In a possible implementation, the connecting member is horizontally placed above the nozzle cover tightening assembly, and a clearance groove is provided on a side of the connecting member facing the nozzle cover tightening assembly.

[0023] According to another aspect of the present application, there is provided a coding device, comprising: a nozzle maintenance device, an inkjet printer and a lifting module;

[0024] The nozzle maintenance device is located at one side of the nozzle of the inkjet printer. The inkjet printer is connected to the lifting module. The lifting module is suitable for driving the inkjet printer to move in a direction toward or away from the nozzle maintenance device.

[0025] Beneficial effects: the ink scraping side of the ink scraping assembly protruding out of the ink shell is suitable for contacting the nozzle to perform ink scraping maintenance on the nozzle, the driving assembly is suitable for driving the ink scraping assembly to move so as to realize the ink scraping process, the ink shell can collect the ink produced by ink pressing and the ink scraped by the ink scraping assembly while maintaining the internal equipment, the moving assembly is suitable for driving the overall movement of the ink shell and the internal equipment of the ink shell, in order to adjust the position of the ink scraping assembly in the ink shell according to the position of the inkjet printer, the moving assembly is provided to adjust the position of the ink shell, under the action of the moving assembly, the ink scraping assembly in the ink shell gradually moves from a predetermined position to the bottom of the inkjet printer, and when the ink scraping maintenance is completed, the ink scraping assembly in the ink shell gradually moves back to the predetermined position.

[0026] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and, together with the description, serve to explain the principles of the present application.

[0028] Figure 1 A main structure diagram of a nozzle maintenance device according to an embodiment of the present application is shown;

[0029] Figure 2 A main structure diagram of a nozzle maintenance device according to an embodiment of the present application is shown;

[0030] Figure 3 An assembly diagram of a nozzle maintenance device according to an embodiment of the present application is shown;

[0031] Figure 4 An internal view of an ink shell according to an embodiment of the present application is shown;

[0032] Figure 5 Show Figure 4 A partial enlarged view of

[0033] Figure 6 Show Figure 5 A partial enlarged view of

[0034] Figure 7 A main structural diagram of a connector according to an embodiment of the present application is shown;

[0035] Figure 8 A main structural diagram of a connector according to an embodiment of the present application is shown;

[0036] Fig. 9 A main structural diagram of a drive assembly according to an embodiment of the present application is shown;

[0037] Fig.10 A main structural diagram of the nozzle cover tightening assembly of an embodiment of the present application is shown;

[0038] Fig.11 A main structure diagram of a nozzle maintenance device according to an embodiment of the present application is shown;

[0039] Fig.12 A side view of a coding device according to an embodiment of the present application is shown;

[0040] Fig.13 Show Fig.12 A partial enlarged view of

[0041] Fig.14 A partial enlarged view of the inkjet printing device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0042] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0043] Among them, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model or simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0046] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0047] like Figure 1 As shown, the nozzle maintenance device comprises: an ink shell 110, an ink scraping assembly, a moving assembly, a driving assembly and a nozzle cover tightening assembly 500; the moving assembly is arranged on the side wall of the ink shell 110, and the driving end of the moving assembly is suitable for driving the ink shell 110 to move; the ink shell 110 is provided with a cavity with an opening at one end, and the ink scraping assembly, the nozzle cover tightening assembly 500 and the driving assembly are all arranged inside the cavity of the ink shell 110; the ink scraping side of the ink scraping assembly protrudes out of the open end of the ink shell 110, the driving end of the driving assembly is connected to the ink scraping assembly, and the driving assembly is suitable for driving the ink scraping assembly to move in the ink shell 110; the ink shell 110 is provided with an ink discharge port.

[0048] Here, it should be noted that the ink shell 110 is suitable for providing a working space and installation support for the ink scraping assembly, the driving assembly, and the nozzle cover tightening assembly 500. The ink scraping side of the ink scraping assembly protrudes from the ink shell 110 and is suitable for contacting the nozzle to perform ink scraping maintenance on the nozzle. The driving assembly is suitable for driving the ink scraping assembly to move so as to realize the ink scraping process. The ink shell 110 can collect the ink generated by ink pressing and the ink scraped by the ink scraping assembly while maintaining the internal equipment. The moving assembly is suitable for driving the overall movement of the ink shell 110 and the internal equipment of the ink shell 110. In order to adjust the position of the ink scraping assembly in the ink shell 110 according to the position of the inkjet printer 200, a moving assembly is provided to adjust the position of the ink shell 110. Under the action of the moving assembly, the ink scraping assembly in the ink shell 110 gradually moves from a predetermined position to the bottom of the inkjet printer 200. When the ink scraping maintenance is completed, the ink shell 110 gradually moves back to the predetermined position. The nozzle cover tightening assembly 500 of the present application is suitable for contacting the nozzle surface and the nozzle protection cover, so that the nozzle surface and the nozzle protection cover are in close contact, ensuring that the nozzle protection cover is tightly buckled on the nozzle of the inkjet printer 200, so that when the inkjet printer 200 is not working, the nozzle nozzle hole will not be exposed to the outside, achieving the effect of protection and moisturizing. Compared with the manual cleaning method, the present application has a simple cleaning process, is easy to use, and the ink scraping force is balanced to ensure that the nozzle will not be damaged, effectively saving manpower time, and can directly collect the pressed ink, and has a wide range of applications.

[0049] In a possible implementation, the main body of the ink housing 110 is a rectangular parallelepiped structure, and the ink housing 110 is provided with a cavity with one end open, and a driving component, an ink scraping component and a nozzle cover tightening component 500 are placed inside the cavity of the ink housing 110. Figure 4 As shown, the nozzle cover tightening assembly 500 is arranged in the middle of the ink shell 110, the driving assembly is arranged adjacent to the nozzle cover tightening assembly 500, the ink scraping assembly is movably arranged at the open end of the ink shell 110, and the ink scraping assembly is located above the nozzle cover tightening assembly 500.

[0050] In a possible implementation, the moving assembly includes: a first gear 130 and a matching rack 120; the rack 120 is disposed on one side of the ink housing 110, and the first gear 130 is meshed and connected with the rack 120, and is suitable for driving the ink housing 110 to move when the first gear 130 rotates. Figure 1 As shown, the rack 120 is fixedly arranged at the top of one side of the ink shell 110, and one end of the rack 120 is fixed to the ink shell 110 by a screw, the teeth of the first gear 130 match the rack 120, and the first gear 130 is meshed and connected to the rack 120. When the first gear 130 rotates clockwise, the first rack 120 drives the ink shell 110 to move to the left, and when the second gear 640 rotates counterclockwise, the second rack 120 drives the ink shell 110 to move to the right.

[0051] In one possible implementation, the moving component also includes: a second drive motor 140, the output shaft of the second drive motor 140 is transmission-connected to the first gear 130, and when the second drive motor 140 is running, it can drive the first gear 130 to rotate with the center point of the first gear 130 as the center of the circle, thereby driving the movement of the rack 120.

[0052] In one possible implementation, Figure 1 As shown, it also includes a rack bracket 121, the main body of the rack bracket 121 is an L-shaped structure, a portion of the rack 120 is fixedly arranged on the top of one side of the ink shell 110, and the portion of the rack 120 protruding from the ink shell 110 is arranged on the rack bracket 121.

[0053] In a possible implementation, the ink scraping assembly includes: a scraper 400 and a connecting member 410; the connecting member 410 is movably connected to the ink shell 110, the scraper 400 is arranged on one side of the connecting member 410, and the connecting member 410 is provided with an open end of one side of the scraper 400 protruding from the ink shell 110. Here, it should be noted that the connecting member 410 is suitable for supporting and placing the scraper 400, so that the scraper 400 protrudes from the ink shell 110 and can be placed horizontally above the opening of the ink shell 110. At the same time, the connecting member 410 serves as a connecting bridge between the driving assembly and the scraper 400, and the connecting member 410 can stably drive the scraper 400 to perform linear motion. Figure 5 and Figure 7 , Figure 8 As shown, the main structure of the connecting member 410 is a "Π"-shaped structure, and the two ends of the opening of the "Π"-shaped structure are respectively connected to the inner side walls on both sides of the body length of the ink shell 110. The top of the "Π"-shaped structure is suitable for installing the scraper 400, and the connecting member 410 is provided with a clearance groove (the opening of the "Π"-shaped structure) on the side facing the nozzle cover tightening assembly 500. The clearance groove is suitable for making way for the nozzle cover tightening assembly 500 below the connecting member 410 to avoid obstruction of the connecting member 410 by the nozzle cover tightening assembly 500 during the movement of the connecting member 410.

[0054] Furthermore, the main body of the scraper 400 is a rectangular plate-like structure, and a scraper clearance groove 440 is provided on one side of the connector 410 where the scraper 400 is installed. The scraper 400 is embedded in the scraper clearance groove 440, and the scraper 400 is clamped between the connector 410 and the clamping plate, and then the clamping plate, the scraper 400 and the connector 410 are fixed by bolts. Furthermore, the scraper 400 is made of rubber, and the rubber material can produce a certain amount of deformation. When it contacts the nozzle, it produces a deformation of 1-2mm under the action of extrusion, which can ensure that the scraper 400 will not hit and wear the nozzle, and ensure the contact stability between the nozzle and the scraper 400. When the scraper 400 moves, it can effectively scrape away and clean the residual ink on the nozzle.

[0055] In a possible implementation, the main body of the ink shell 110 is a rectangular parallelepiped structure; both sides of the opening end of the ink shell 110 are provided with a limiting portion, and the connecting member 410 is connected to the limiting portion. Here, it should be noted that the setting of the limiting portion is suitable for limiting the connecting member 410 to prevent the connecting member 410 from rotating with the first screw rod 610, so that the connecting member 410 moves along the body length direction of the first screw rod 610 when the first screw rod 610 rotates.

[0056] Furthermore, the limiting part includes: a first slide rail 620 and a first slider 630; Figure 4 and Figure 5 As shown, the first slider 630 is slidably disposed on the first slide rail 620, and the first slide rail 620 is embedded in one side of the first slider 630, and the first slide rail 620 is fixed to the inner wall of the ink shell 110 by two or more bolts, and the length direction of the first slide rail 620 is parallel to the length direction of the ink shell 110, as shown in FIG. Figure 5 and Figure 7 As shown, bolt holes 430 are provided at both ends of the connecting member 410 , and bolts are inserted into the bolt holes 430 to be fixedly connected with the two first sliders 630 , thereby stably enabling the two ends of the connecting member 410 to move inside the ink shell 110 .

[0057] In one possible implementation, Figure 4 As shown, a magnetic switch 170 and a magnetic switch 160 are provided on the outer wall of the ink housing 110, and the magnetic switch 170 and the magnetic switch 160 are arranged at both ends of one side of the body length of the ink housing 110, and the magnetic switch 170 and the magnetic switch 160 protrude from the top surface of the ink housing 110. It should be noted that the magnetic switch 160 and the magnetic switch 170 are suitable for checking the position of the scraper 400 moving on the first slide rail 620, so as to limit the position.

[0058] Furthermore, the connecting member 410 is provided with a sensing bracket 411; the sensing bracket 411 is arranged on one side of the connecting member 410, and the sensing bracket 411 can move along with the connecting member 410. Figure 5 As shown, the main body of the sensing bracket 411 is an "L"-shaped plate structure, one end of the sensing bracket 411 is fixedly connected to the connecting member 410 by bolts, and the other end of the sensing bracket 411 protrudes out of the connecting member 410 and is opposite to the magnetic switch 170. The sensing bracket 411 is suitable for passing through the magnetic switch 170 or the magnetic switch 160 when moving, thereby triggering the magnetic switch 160 or the magnetic switch 170. Once triggered, it indicates that the connecting member 410 has reached the position, and the control unit stops the first drive motor 661 to avoid excessive movement and the ink shell 110 being hit and worn.

[0059] In a possible implementation, the driving assembly includes: a first driving motor 661 and a first screw rod 610; Figure 6 and Fig. 9 As shown, the driving end of the first driving motor 661 is transmission-connected with the first screw rod 610 and is suitable for driving the first screw rod 610 to rotate; the length direction of the first screw rod 610 is parallel to the length direction of the ink shell 110, and the connecting member 410 is sleeved on the first screw rod 610 and the connecting member 410 can move along the length direction of the first screw rod 610. Here, it should be noted that the first driving motor 661 can drive the first screw rod 610 to rotate, and when the first screw rod 610 rotates, the connecting member 410 can move on the first screw rod 610 along the length direction of the first screw rod 610.

[0060] Further, such as Figure 7 As shown, one end of the connecting member 410 is provided with a through hole 420, and a locking hole 421 is provided in the through hole 420; Figure 6 As shown, a sleeve 611 is sleeved on the outer side of the first screw rod 610, and a locking block 612 is protruding from the outer wall of the sleeve 611. The locking block 612 matches the locking hole 421. The connecting member 410 is sleeved on the outer side of the sleeve 611 through the through hole 420, and the locking block 612 is inserted into the locking hole 421 to achieve a fixed connection between the connecting member 410 and the sleeve 611. The sleeve 611 is rotatably sleeved on the outer side of the first screw rod 610, so when the first screw rod 610 rotates, the sleeve 611 can drive the connecting member 410 to move.

[0061] In a possible implementation, the drive assembly also includes: a second gear 640 and a third gear 650; the driving end of the first drive motor 661 is connected to the center of the second gear 640 in a transmission manner and is suitable for driving the second gear 640 to rotate, the second gear 640 is meshedly connected to the third gear 650, and the center of the third gear 650 is connected to the first screw rod 610 in a transmission manner and is suitable for driving the first screw rod 610 to rotate. Here, it should be noted that due to the limited internal space of the ink shell 110, if the first drive motor 661 is directly connected to the first screw rod 610 in a transmission manner, the two must be arranged on the same straight line, which will increase the overall volume and is not conducive to miniaturization and compactness of the structure. Therefore, the second gear 640 and the third gear 650 are set as transition devices between the first drive motor 661 and the first screw rod 610, which can reduce the overall volume while adjusting the rotation speed of the first screw rod 610. Further, as Fig. 9 As shown, the first drive motor 661 is fixedly arranged on the bottom inner wall of the ink shell 110, and the output shaft of the first drive motor 661 is fixedly connected to the center of the second gear 640. When the output shaft of the first drive motor 661 rotates, the second gear 640 can be driven to rotate; the third gear 650 is located above the second gear 640 and the third gear 650 is meshed with the second gear 640. The rotation of the second gear 640 drives the third gear 650 to rotate, and the center of the third gear 650 is fixedly connected to one end of the first screw rod 610, and the rotation of the third gear 650 drives the first screw rod 610 to rotate.

[0062] Furthermore, the diameter of the second gear 640 is equal to the diameter of the third gear 650. Here, it should be noted that the diameter ratio of the second gear 640 and the third gear 650 can be adjusted according to the rotation speed of the first screw rod 610. If the rotation speed of the first screw rod 610 is to be increased, the diameter of the second gear 640 can be made larger than the diameter of the third gear 650. If the rotation speed of the first screw rod 610 is to be reduced, the diameter of the third gear 650 can be made larger than the diameter of the second gear 640.

[0063] It should be noted that one end of the first screw rod 610 is transmission-connected to the third gear 650 , and the other end of the first screw rod 610 passes through the side wall of the ink shell 110 through a screw rod sleeve.

[0064] In a possible implementation, the first drive motor 661 is fixedly disposed on the bottom inner wall of the ink housing 110 through the motor seat 600; Fig. 9As shown, the motor seat 600 is sleeved on the outside of the first drive motor 661, and the two ends of the motor seat 600 are fixedly arranged between the motor seat bracket 660 and the motor seat bracket 663. One side of the motor seat bracket 660 is connected to the motor seat 600, and one side of the motor seat bracket 660 connected to the ink shell 110 is provided with more than two vacuum suction cups 662; one side of the motor seat bracket 663 is also connected to the motor seat 600, and the other side of the motor seat bracket 663 is connected to the bottom plate 664 by two bolts, and the bottom plate 664 is finally fixedly connected to the bottom inner wall of the ink shell 110; under the reinforcement of the suction cup 662 and the bottom plate 664, the first drive motor 661 can be stably installed inside the ink shell 110.

[0065] In a possible implementation, the nozzle cover tightening assembly 500 includes: a tightening portion 520 and a fixing seat 530: two rubber rings 510 are provided on the top surface of the tightening portion 520, and the tightening portion 520 is arranged inside the cavity of the ink shell 110 through the fixing seat 530. It should be noted here that the fixing seat 530 is suitable for supporting and raising the two tightening portions 520, such as Fig.10 As shown, the main body of the fixing seat 530 is a rectangular parallelepiped structure, the top surface of the fixing seat 530 is connected to the tightening portion 520 by bolt connection, the bottom surface of the fixing seat 530 is movably connected to the bottom inner wall of the ink shell 110 through the elastic portion, the tightening portion 520 is a rectangular plate-like structure, and two oblong rubber rings 510 are provided on the upper surface of the tightening portion 520. It should be noted here that the rubber ring 510 is suitable for contacting the nozzle cover and tightening the nozzle cover, and the rubber ring 510 is made of a relatively soft material to avoid contact with the nozzle cover during work to cause wear.

[0066] In a possible implementation, the elastic part includes: two connecting rods 550 and two springs 540; Fig.10 As shown, two connecting rods 550 are vertically arranged on the bottom inner wall of the ink shell 110, one end of the two connecting rods 550 passes through the fixing seat 530, two springs 540 are sleeved on the two connecting rods 550, and the two ends of the two springs 540 are respectively in contact with the ink shell 110 and the fixing seat 530. When the spring 540 is relaxed, the spring 540 pushes the fixing seat 530 upward, and when the fixing seat 530 contacts the nozzle cover and is subjected to pressure, the spring 540 is compressed, and when the fixing seat 530 leaves the nozzle cover, the spring 540 recovers and pushes the fixing seat 530 upward again.

[0067] In a possible implementation, the ink housing 110 is provided with a retaining wall 190, such as Figure 4 As shown, the retaining wall 190 is located between the motor base 600 and the fixing base 530 . It should be noted that the setting of the retaining wall 190 divides the ink shell 110 into two spaces, isolating the first driving motor 661 from the fixing base 530 .

[0068] In a possible implementation, the side wall of the ink housing 110 is provided with an ink discharge port, and the ink can be discharged from the ink housing 110 through the ink discharge port. The ink discharge port is provided with a quick-tightening joint 111, which has the functions of quick insertion, convenient installation, reliable sealing, and firm connection. An ink discharge pump can be installed on the ink discharge pipeline to actively extract the waste ink from the ink housing 110.

[0069] In a possible implementation, a float switch 180 is provided in the ink housing 110; once the float switch 180 floats, it indicates that there is a lot of waste ink in the ink housing 110, and the control unit will give an alarm and control the ink discharge pump to discharge the waste ink to prevent the internal ink from overflowing and affecting the operation of other components. Figure 4 As shown, the float switch 180 is disposed inside the cavity of the ink housing 110 through a float frame 181 .

[0070] In a possible implementation, the nozzle maintenance device is further provided with a mounting assembly, which is arranged on the outer wall of the ink shell 110. It should be noted that the mounting assembly is suitable for mounting the nozzle maintenance device at the position to be installed during operation. The mounting assembly includes: a mounting frame, a fixing plate 700 and a sliding portion; the fixing plate 700 is suitable for fixed installation at the position to be installed, one side of the mounting frame is fixedly connected to the ink shell 110, and the other side of the mounting frame is slidably connected to the fixing plate 700 through the sliding portion, and the movable direction of the mounting frame is parallel to the moving direction of the rack 120.

[0071] Further Fig.11 As shown, the mounting frame includes: a mounting plate 151, a mounting plate 152 and two reinforcing tripods 150; the top surface of the fixing plate 700 is suitable for fixed installation at the position to be installed, one side of the mounting plate 151 is fixedly connected to the ink shell 110, one side of the mounting plate 152 is slidably connected to the bottom surface of the fixing plate 700 through a sliding portion, the mounting plate 151 and the mounting plate 152 are vertically connected to each other, and the two reinforcing tripods 150 are arranged between the mounting plate 151 and the mounting plate 152; the reinforcing tripod 150 is suitable for supporting and reinforcing the mounting frame to prevent the mounting frame from being broken and deformed due to the excessive weight of the ink shell 110.

[0072] In a possible implementation, the sliding part includes: a second slider 720 and a second slide rail 710; the second slider 720 is slidably arranged on the second slide rail 710, and the second slide rail 710 is embedded in one side of the second slider 720, the second slide rail 710 is fixed to one side of the fixed plate 700 by two or more bolts, and the length direction of the second slide rail 710 is parallel to the length direction of the rack 120, and one side of the mounting frame is fixedly connected to the second slider 720 by bolts. Further, two sliding parts are provided, and one side of the mounting frame is movably connected to the fixed plate 700 through two sliding parts.

[0073] In a possible implementation, a magnetic switch 730 and a magnetic switch 740 are further provided; Fig.11 As shown, the magnetic switch 730 and the magnetic switch 740 are respectively arranged at the two ends of the fixed plate 700, and are suitable for detecting whether the mounting frame has moved into place to prevent the mounting frame from moving excessively. The sensor 731 is fixedly arranged on the mounting frame and the sensor 731 protrudes out of the mounting frame and is arranged corresponding to the magnetic switch 730. When the sensor 731 triggers the magnetic switch 730, it means that the mounting frame has moved into place, and at this time, the control unit controls the second drive motor 140 to stop running; the sensor 741 is fixedly arranged on the mounting frame and the sensor 741 protrudes out of the mounting frame and is arranged corresponding to the magnetic switch 740. When the sensor 741 triggers the magnetic switch 740, it means that the mounting frame has moved into place, and at this time, the control unit controls the second drive motor 140 to stop running.

[0074] like Figure 1 As shown, the second drive motor 140 is fixedly arranged on the fixed plate 700 through the fixing member 141. When the second drive motor 140 drives the first gear 130 to rotate, the rack 120 drives the ink shell 110 to move, and the mounting frame of the ink shell 110 moves along with the ink shell 110 on the second slide rail 710, thereby achieving the fixed-point installation of the entire device and ensuring that the ink shell 110 can be moved at any time. Further, the fixing member 141 is sleeved on the outside of the second drive motor 140, and the outside of the fixing member 141 is fixedly connected to the fixed plate 700 by bolts.

[0075] A coding device includes: a nozzle maintenance device 100, an inkjet printer 200 and a lifting module 300; the nozzle maintenance device 100 is arranged on one side of the nozzle of the inkjet printer 200, the inkjet printer 200 is connected to the lifting module 300, and the lifting module 300 is suitable for driving the inkjet printer 200 to move in a direction toward or away from the nozzle maintenance device 100. It should be noted that the inkjet printer 200 is suitable for inkjet printing on a workpiece to be processed, the nozzle maintenance device 100 is suitable for scraping ink maintenance on the nozzle of the inkjet printer 200 after inkjet is completed, and the lifting module 300 is suitable for driving the inkjet printer 200 to move close to or away from the nozzle maintenance device.

[0076] In a possible implementation, the lifting module 300 includes: a support base 310, a second screw rod 350, a third drive motor 320, and a moving block 340; the support base 310 is vertically arranged above the fixed plate 700 through a connecting plate 380, the third drive motor 320 is installed on a motor mounting plate, and the motor mounting plate is arranged on the top surface of the support base 310, the output shaft of the third drive motor 320 passes through the motor mounting plate, and is transmission-connected to the second screw rod 350 through a coupling 330, and the second screw rod 3 One end of 50 is connected to the third driving motor 320, and the other end of the second screw rod 350 is rotatably connected to the support base 310; the shell of the inkjet printer 200 is fixedly connected to the moving block 340, and the moving block 340 is provided with a threaded hole, which matches the second screw rod 350. The moving block 340 is sleeved on the outer side of the second screw rod 350. When the second screw rod 350 rotates, the moving block 340 can move along the body length direction of the second screw rod 350, and the moving block 340 can move with the inkjet printer 200.

[0077] In a possible implementation, the lifting module 300 further includes: a third sliding block 390 and a third sliding rail 391; Fig.14 As shown, the third slide rail 391 is arranged on the side of the support seat 310 facing the second screw rod 350, the third slider 390 can be movably arranged on the third slide rail 391, the third slider 390 can move along the body length direction of the third slide rail 391, one side of the third slider 390 is fixedly connected to the moving block 340, and when the moving block 340 moves up and down, it can drive the third slider 390 to slide together. Under the action of the third slider 390 and the third slide rail 391, it can be ensured that the moving block 340 does not rotate but only produces linear displacement.

[0078] Furthermore, the second screw rod 350 is also provided with two screw rod fixing seats 331; the two screw rod fixing seats 331 are respectively sleeved on the two ends of the second screw rod 350, and the outer sides of the two screw rod fixing seats 331 are fixedly connected to the support seat 310, so that the second screw rod 350 is stably installed on one side of the support seat 310, and effectively ensures that the second screw rod 350 can only rotate around the center. Since the third drive motor 320 is connected to the second screw rod 350 through the coupling 330, when the third drive motor 320 rotates, it drives the coupling 330 to rotate, and the coupling 330 drives the second screw rod 350 to rotate. Even if the coupling 330 and the second screw rod 350 are not concentric, under the limit of the two screw rod fixing seats 331, the rotation of the second screw rod 350 is not affected.

[0079] In a possible implementation, the lifting module 300 further includes: a first photoelectric sensor 360, a second photoelectric sensor 370, a first light shielding baffle 361 and a second light shielding baffle 362. Fig.13As shown, the first photoelectric sensor 360 and the second photoelectric sensor 370 are sequentially arranged on the moving block 340 from top to bottom, and the first light shielding baffle 361 and the second light shielding baffle 362 are sequentially arranged on the support seat 310 from top to bottom; when the first photoelectric sensor 360 moves to the position of the first light shielding baffle 361, the inkjet printer 200 is located at the ink pressing position, and the nozzle of the inkjet printer 200 contacts the scraper 400, and the scraper 400 is located on one side of the nozzle; when the second photoelectric sensor 370 moves to the position of the second light shielding baffle 362, the nozzle cover of the inkjet printer 200 contacts the nozzle cover pressing assembly 500. The first light shielding baffle 361 and the second light shielding baffle 362 trigger each photoelectric sensor in turn, so that the controller can obtain the current position of the inkjet printer 200, that is, the current position of the nozzle. The controller can control the start and stop of the third driving motor 320 according to the specific positions to which the first photoelectric sensor 360 and the second photoelectric sensor 370 move.

[0080] Here, it should be noted that the protruding height of the second photoelectric sensor 370 relative to the moving block 340 needs to be greater than the protruding height of the first photoelectric sensor 360 relative to the moving block 340. Similarly, the protruding height of the second light-shielding baffle 362 relative to the support seat 310 is greater than the protruding height of the first light-shielding baffle 361 relative to the support seat 310. This can ensure that the second light-shielding baffle 362 can only trigger the second photoelectric sensor 370 to prevent the second light-shielding baffle 362 from accidentally touching the first photoelectric sensor 360; the first light-shielding baffle 361 can only trigger the first photoelectric sensor 360 to prevent the first light-shielding baffle 361 from accidentally touching the second photoelectric sensor 370.

[0081] The inkjet printer 200 generally needs to press ink first to remove residual ink, and then perform ink scraping maintenance after inkjet is completed. Further, the working process of this application is as follows:

[0082] 1. The control unit controls the third driving motor 320 to work, the second screw rod 350 rotates, the moving block 340 on the second screw rod 350 starts to move, and the inkjet printer 200 first returns to the origin position (highest position);

[0083] 2. The control unit controls the second driving motor 140 to work, and the first gear 130 rotates to move the ink shell 110 from the preset position to directly below the inkjet printer 200, so that the opening end of the ink shell 110 faces the nozzle of the inkjet printer 200;

[0084] 3. The control unit controls the third drive motor 320 to work, the second screw rod 350 rotates, the moving block 340 on the second screw rod 350 starts to move, and the inkjet printer 200 descends. When the first light shielding plate 361 triggers the first photoelectric sensor 360, the control unit controls the third drive motor 320 to stop working; the inkjet printer 200 moves to the ink pressing station, the scraper 400 of the nozzle maintenance device 100 contacts the nozzle, and the scraper 400 produces a deformation of 1-2 mm;

[0085] 4. The control unit controls the inkjet printer 200 to start pressing ink; the ink flows into the ink housing 110 below;

[0086] 5. After the ink pressing is completed, wait for 3-5 seconds; then the control unit controls the first drive motor 661 to move, driving the first screw rod 610 of the nozzle maintenance device to rotate, and the connecting member 410 on the first screw rod 610 moves, thereby driving the scraper 400 to move linearly. It should be noted that the movement speed of the scraper 400 is generally 50-100 mm / s;

[0087] 6. After the scraper 400 moves from the origin to the other side of the nozzle, the ink scraping is completed, and the control unit controls the inkjet printer 200 to rise to the origin (highest position), the scraper 400 returns to the origin, and the nozzle maintenance device 100 retracts to the preset position;

[0088] 7. The waste ink flowing out of the ink press is discharged through the ink discharge port of the ink shell 110; the nozzle maintenance is completed.

[0089] When the protective cover needs to be tightened, the inkjet printer 200 is first raised to the origin position, and then the nozzle maintenance device 100 is extended, and the inkjet printer 200 is lowered to the position where the protective cover is tightened. At this position, the nozzle cover tightening assembly 500 contacts and tightens the protective cover of the inkjet printer 200, ensuring that the protective cover is tightly closed and the nozzle orifice of the protective nozzle is not exposed to the outside, thereby achieving the effect of protection and moisturizing. It should be noted that because the scraper 400 is higher than the nozzle cover tightening assembly 500, in order to avoid the scraper 400 from blocking when tightening the protective cover, the length of the ink shell 110 is set to be greater than the length of the inkjet side of the inkjet printer 200. When the protective cover is tightened, the scraper 400 moves to the origin position and stops (the end of the first slide rail 620), thereby making way for the nozzle cover tightening assembly 500 and ensuring that the scraper 400 and the inkjet printer 200 do not interfere with each other.

[0090] It should be noted that the control unit of the present application adopts a PLC, the PLC is connected to the motor controller, and the motor controller is connected to the motor; the PLC can control the motor controller through command communication or pulse control, thereby controlling the movement of the motor.

[0091] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A nozzle maintenance device, characterized in that: include: Ink shell, ink scraping assembly, moving assembly, driving assembly and nozzle cover tightening assembly; The moving component is arranged on the side wall of the ink shell, and the driving end of the moving component is suitable for driving the ink shell to move; The ink shell is provided with a cavity with an opening at one end, and the ink scraping assembly, the nozzle cover tightening assembly and the driving assembly are all arranged inside the cavity of the ink shell; The ink scraping side of the ink scraping assembly protrudes out of the open end of the ink shell, the driving end of the driving assembly is connected to the ink scraping assembly, and the driving assembly is suitable for driving the ink scraping assembly to move in the ink shell; The ink shell is provided with an ink discharge port.

2. The nozzle maintenance device according to claim 1, characterized in that: The moving assembly includes: a first gear and a matching rack; The rack is arranged on one side of the ink shell, and the first gear is meshedly connected with the rack, and is suitable for driving the ink shell to move when the first gear rotates.

3. The nozzle maintenance device according to claim 1, characterized in that: The ink scraping assembly comprises: a scraper and a connecting piece; The connecting member is movably connected to the ink shell, the scraper is arranged on one side of the connecting member, and the side of the connecting member provided with the scraper protrudes out of the opening end of the ink shell.

4. The nozzle maintenance device according to claim 3, characterized in that: The main body of the ink shell is a rectangular parallelepiped structure; Limiting parts are arranged on both sides of the opening end of the ink shell, and the connecting piece is connected to the limiting parts.

5. The nozzle maintenance device according to claim 4, characterized in that: The driving assembly comprises: a driving motor and a first screw rod; The driving end of the driving motor is transmission-connected to the first screw rod and is suitable for driving the first screw rod to rotate; The length direction of the first screw rod is parallel to the length direction of the ink shell, and the connecting piece is sleeved on the first screw rod and can move along the length direction of the first screw rod.

6. The nozzle maintenance device according to claim 5, characterized in that: The driving assembly further includes: a second gear and a third gear; The driving end of the driving motor is transmission-connected to the center of the second gear and is suitable for driving the second gear to rotate. The second gear is meshingly connected to the third gear. The center of the third gear is transmission-connected to the first screw rod and is suitable for driving the first screw rod to rotate.

7. The nozzle maintenance device according to claim 4, characterized in that: The nozzle cover tightening assembly comprises: a tightening part and a fixing seat: The tightening portion is arranged on the top surface of the fixing seat, and a rubber ring is arranged on the top surface of the tightening portion.

8. The nozzle maintenance device according to claim 7, characterized in that: The connecting piece is horizontally placed above the nozzle cover tightening assembly, and a clearance groove is provided on one side of the connecting piece facing the nozzle cover tightening assembly.

9. A coding device, characterized in that: include: The nozzle maintenance device, inkjet printer and lifting module according to any one of claims 1 to 8; The nozzle maintenance device is located at one side of the nozzle of the inkjet printer. The inkjet printer is connected to the lifting module. The lifting module is suitable for driving the inkjet printer to move in a direction toward or away from the nozzle maintenance device.

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