Segmented printing carriage and printer

Abstract

The present invention belongs to the field of inkjet printing technology, solves the problem that the non-working nozzles in the existing printing carriage are easily clogged by dust, and provides a segmented printing carriage and printer. The segmented printing carriage includes a moisturizing mechanism, a first inkjet mechanism, and a second inkjet mechanism; when the first inkjet mechanism is in an inkjet state, the first inkjet mechanism is located at a first position for inkjet printing; when the first inkjet mechanism is in a moisturizing state, the first inkjet mechanism moves from the first position to the second position for moisturizing; when the second inkjet mechanism is in an inkjet state, the second inkjet mechanism is located at a third position for inkjet printing; when the second inkjet mechanism is in a moisturizing state, the second inkjet mechanism moves from the third position to the fourth position for moisturizing. In the present invention, the inkjet mechanism with printing demand performs inkjet printing, and the inkjet mechanism that does not need to participate in printing is moisturized by the moisturizing mechanism, thereby reducing the probability of dust adhering to the nozzles in the inkjet mechanism that does not participate in printing.

Description

Technical Field

[0001] The invention belongs to the technical field of inkjet printing, and in particular relates to a segmented printing carriage and a printer. Background Art

[0002] The print carriage of the existing printing equipment will move to the top of the printing plate for inkjet printing when working. At this time, the nozzles on the print carriage are exposed to the air, and dust in the air is easy to adhere to the surroundings of the nozzles; especially during inkjet printing, not all nozzles on the print carriage are involved in the work in real time, and the nozzles of the nozzles are more likely to adhere to dust when not working, thereby increasing the risk of nozzle clogging and damage, resulting in a reduced service life of the nozzles and an increase in production costs. Summary of the invention

[0003] In view of this, the present invention provides a segmented printing carriage and a printer to solve the problem that the non-working nozzles in the existing printing carriage are easily clogged by dust, resulting in a reduced life of the nozzles.

[0004] The technical solution adopted by the present invention is:

[0005] In a first aspect, the present invention provides a segmented printing carriage, the segmented printing carriage comprising:

[0006] Moisturizing mechanism;

[0007] a first inkjet mechanism, when the first inkjet mechanism is in a first inkjet state, the first inkjet mechanism is located at a first position and performs inkjet printing on a printing medium; when the first inkjet mechanism is in a first moisturizing state, the first inkjet mechanism moves from the first position to a second position and is moisturized by the moisturizing mechanism;

[0008] The second inkjet mechanism, when the second inkjet mechanism is in the second inkjet state, the second inkjet mechanism is located at the third position and performs inkjet printing on the printing medium; when the second inkjet mechanism is in the second moisturizing state, the second inkjet mechanism moves from the third position to the fourth position and is moisturized by the moisturizing mechanism.

[0009] As a preferred embodiment of the above-mentioned printing carriage, the first inkjet mechanism is used for inkjet printing a first ink, and the second inkjet mechanism is used for inkjet printing a second ink different from the first ink.

[0010] As a preferred solution of the above-mentioned printing carriage, the moisturizing mechanism is divided into two groups, namely a first moisturizing mechanism and a second moisturizing mechanism, the first moisturizing mechanism moisturizes the first inkjet mechanism, and the second moisturizing mechanism moisturizes the second inkjet mechanism.

[0011] As a preferred solution of the above-mentioned printing carriage, the first moisturizing mechanism includes a plurality of first moisturizing components, and the projections of the plurality of first moisturizing components on the first plane are located on the first curved surface.

[0012] As a preferred solution of the above-mentioned printing carriage, the segmented printing carriage further includes:

[0013] The first ink scraping mechanism scrapes ink from the first ink jetting mechanism when the first ink jetting mechanism moves from a first position to a second position.

[0014] As a preferred solution of the above-mentioned printing carriage, the segmented printing carriage further includes:

[0015] A first guide mechanism, wherein the first inkjet mechanism reciprocates on the first guide mechanism.

[0016] As a preferred solution of the above-mentioned printing carriage, the first guide mechanism includes a first guide rail and a second guide rail, the first guide rail and the second guide rail are respectively arranged on opposite sides of the first inkjet mechanism, and the first inkjet mechanism reciprocates on the first guide rail and the second guide rail.

[0017] As a preferred solution of the above-mentioned printing carriage, the segmented printing carriage further includes:

[0018] The first driving mechanism drives the first inkjet mechanism to move from a first position to a second position.

[0019] As a preferred embodiment of the above-mentioned printing carriage, the first driving mechanism includes a first screw rod and a second screw rod, and the first screw rod and the second screw rod are respectively arranged on opposite sides of the first inkjet mechanism, a first screw rod nut is threadedly connected to the first screw rod, and a second screw rod nut is threadedly connected to the second screw rod, the first inkjet mechanism is respectively connected to the first screw rod nut and the second screw rod nut, and the first screw rod and the second screw rod rotate synchronously.

[0020] In a second aspect, the present invention provides a printer, comprising any one of the above-mentioned printing carriages.

[0021] In summary, the beneficial effects of the present invention are as follows:

[0022] The segmented printing carriage and printer of the present invention are provided with a first inkjet mechanism and a second inkjet mechanism. The inkjet mechanism with printing demand performs inkjet printing, and the inkjet mechanism that does not need to participate in printing is moisturized by the moisturizing mechanism, thereby reducing the probability of dust adhering to the nozzles in the inkjet mechanism that does not participate in printing, reducing the risk of nozzle clogging and damage, and increasing the service life of the nozzles. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the embodiment of the present invention will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the present invention.

[0024] Figure 1 is a schematic diagram of the three-dimensional structure of a printer in Embodiment 1 of the present invention;

[0025] Figure 2 is a schematic diagram of the three-dimensional structure of the printer in Embodiment 1 of the present invention from another viewing angle;

[0026] Figure 3 is a top view of the printer in Embodiment 1 of the present invention;

[0027] Figure 4 for Figure 3 A structural schematic diagram when the first inkjet mechanism is hidden;

[0028] Figure 5 for Figure 4 Sectional view at CC;

[0029] Figure 6 This is a schematic diagram of the three-dimensional structure of the printing carriage in Example 1 of the present invention;

[0030] Figure 7 This is a front view of the printing carriage in Example 1 of the present invention;

[0031] Figure 8 for Figure 6 A partial enlarged view of the middle A;

[0032] Fig. 9 This is a schematic diagram of the structure in which the printing carriage is located above the printing platform in Embodiment 1 of the present invention;

[0033] Fig.10 for Fig. 9 A schematic diagram of the structure when the third supporting component is hidden;

[0034] Fig.11 This is a schematic diagram of the structure in which the printing carriage is located above the cleaning device in Embodiment 1 of the present invention;

[0035] Fig.12 for Fig.11 A partial enlarged view of point B in the middle;

[0036] Fig.13 for Fig.11 A schematic diagram of the structure when the cleaning device is provided with an ink collection box;

[0037] Fig.14 This is a schematic diagram of the structure of the printing carriage in Embodiment 3 of the present invention;

[0038] Fig.15 It is a cross-sectional schematic diagram of the assembly of the printing carriage in Embodiment 4 of the present invention;

[0039] Fig.16 is a cross-sectional view of a nozzle module in Example 5 of the present invention;

[0040] Fig.17 This is a schematic diagram of the structure of the auxiliary ink cartridge and the ink cartridge holder in Embodiment 5 of the present invention;

[0041] Fig.18 for Fig.17 A schematic diagram of the structure of the middle auxiliary ink cartridge after the first heat preservation cover is added;

[0042] Fig.19 for Fig.17 Schematic diagram of the structure after the middle auxiliary ink cartridge is additionally provided with a second heat-insulating cover, a third heat-insulating cover, and a fourth heat-insulating cover.

[0043] Parts and numbers in the picture:

[0044] 10. Print carriage; 11. First support mechanism; 111. First support component; 112. Second support component; 12. First inkjet mechanism; 121. First nozzle module; 122. Second nozzle module; 123. Third nozzle module; 124. Fourth nozzle module; 125. Fifth nozzle module; 126. Sixth nozzle module; 127. Seventh nozzle module; 128. Eighth nozzle module; 129. Ninth nozzle module; 1201. Shell; 1202. Nozzle control board; 1203. Auxiliary ink cartridge; 12031. First heating belt; 12032. Second heating belt; 12033. Third heating belt; 12034. First heat preservation cover; 12035. Second heat preservation cover ; 12036, third heat preservation cover; 12037, fourth heat preservation cover; 1204, ink cartridge holder; 1205, nozzle; 13, first guide mechanism; 131, first guide rail; 132, first slider; 14, first drive mechanism; 141, first screw rod; 142, first motor; 151, heating lamp; 152, first pre-curing lamp; 153, second pre-curing lamp; 154, third pre-curing lamp; 155, final curing lamp; 161, second inkjet mechanism; 162, third inkjet mechanism; 163, fourth support mechanism; 164, fifth support mechanism; 165, third guide mechanism; 166, fourth guide mechanism; 167, third drive mechanism; 168, fourth drive mechanism;

[0045] 20. Printing platform; 21. Second supporting mechanism; 211. Third supporting member; 212. Fourth supporting member; 22. Printing station;

[0046] 30. Cleaning device; 31. Third supporting mechanism; 311. Fifth supporting member; 312. Sixth supporting member; 32. Ink collecting box; 33. Second guiding mechanism; 331. Third guide rail; 332. Fourth guide rail; 333. Third slider; 334. Fourth slider; 34. Lifting drive mechanism; 341. Third screw rod; 342. Fourth screw rod; 343. Third motor; 344. Fourth motor; 35. Moisturizing tripod; 36. Scraper;

[0047] 40. Frame; 41. Feed roller; 42. Discharge roller;

[0048] The direction of arrow x is the conveying direction of the printing medium, the direction of arrow z is vertically upward, and the direction of arrow y is a first direction, which is perpendicular to the conveying direction of the printing medium and perpendicular to the vertical direction. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described in conjunction with the drawings in the embodiment of the present invention. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 of the present invention. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In the absence of further restrictions, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements. If there is no conflict, the various features in the embodiments and examples of the present invention can be combined with each other, all within the scope of protection of the present invention.

[0050] Embodiment 1:

[0051] See also Figures 1 to 3The present embodiment discloses a printer, which includes a frame 40, a printing carriage 10, a printing platform 20, a cleaning device 30, a feed roller 41 and a discharge roller 42, wherein the feed roller 41 and the discharge roller 42 are respectively arranged on opposite sides of the printing platform 20, and the printing medium passes through the feed roller 41, the printing platform 20 and the discharge roller 42 in sequence to form a conveying path for the printing medium (the conveying direction of the printing medium is shown by the arrow x in the accompanying drawings), and a direction perpendicular to the conveying direction of the printing medium and perpendicular to the vertical direction is defined as a first direction (the first direction is shown by the arrow y in the accompanying drawings, and the vertical direction is shown by the arrow z in the accompanying drawings), and the feed roller 41 and the discharge roller 42 are rotatably mounted on the frame 40. The above-mentioned printing platform 20 and cleaning device 30 are both installed on the frame 40, and the cleaning device 30 is located on one side of the printing platform 20. When the printing carriage 10 is in the inkjet state, the printing carriage 10 is located above the printing platform 20, and the printing carriage 10 performs inkjet printing on the surface of the printing medium transported through the surface of the printing platform 20; when the printing carriage 10 is in the moisturizing state, the printing carriage 10 moves to the top of the cleaning device 30, and the cleaning device 30 cleans and moisturizes the nozzle on the printing carriage 10. For ease of understanding, the printing carriage 10, the printing platform 20 and the cleaning device 30 are described separately as follows:

[0052] The structure of the printing carriage 10 is as follows:

[0053] See also Figures 6 to 8 The printing carriage 10 includes a first supporting mechanism 11, a first inkjet mechanism 12, a first guiding mechanism 13 and a first driving mechanism 14. The first inkjet mechanism 12 includes a plurality of nozzle modules, each nozzle module includes at least one nozzle, and the nozzle surfaces of all nozzle modules are located on the first curved surface. The first supporting mechanism 11 includes a first supporting component 111 and a second supporting component 112 arranged in parallel, and each nozzle module is arranged between the first supporting component 111 and the second supporting component 112.

[0054] The first support component 111 is provided with a plurality of first fixing holes at intervals, and the second support component 112 is provided with a plurality of second fixing holes at intervals; the two ends of the nozzle module are detachably fixedly connected to the first fixing holes of the first support component 111 and the second fixing holes of the second support component 112 corresponding to the first fixing holes. In this embodiment, the detachable fixed connection can be various, for example, a bolt is passed through the first fixing hole and then threadedly connected to the end of the nozzle module, so that the nozzle module is detachably fixedly connected to the first support component 111.

[0055] The first support mechanism 11 reciprocates on the first guide mechanism 13 to realize the reciprocating movement of the first inkjet mechanism 12 on the first guide mechanism 13. The first guide mechanism 13 includes a first guide rail 131 and a second guide rail arranged in parallel. The first guide rail 131 and the second guide rail are installed on the frame 40. The guiding directions of the first guide rail 131 and the second guide rail are parallel to the first direction. The first guide rail 131 and the second guide rail are respectively arranged on opposite sides of the first inkjet mechanism 12 along the first direction; and one end of the first guide rail 131 is located above the printing platform, and the other end of the first guide rail 131 is located above the cleaning device, and one end of the second guide rail is located above the printing platform, and the other end of the second guide rail is located above the cleaning device. One end of the first supporting component 111 is mounted on the first slider 132, one end of the second supporting component 112 is also mounted on the first slider 132, the other end of the first supporting component 111 is mounted on the second slider, the other end of the second supporting component 112 is mounted on the second slider, the first slider 132 is slidably connected to the first guide rail 131, and the second slider is slidably connected to the second guide rail, so that the first inkjet mechanism 12 slides on the first guide rail 131 and the second guide rail, and then the first supporting mechanism 11 slides on the first guide mechanism 13, so as to realize the first inkjet mechanism 12 moving from above the printing platform to above the cleaning device or from above the cleaning device to above the printing platform.

[0056] The first supporting mechanism 11 reciprocates on the first guiding mechanism 13 driven by the first driving mechanism 14 to realize the reciprocating motion of the first inkjet mechanism 12 on the first guiding mechanism 13. The first driving mechanism 14 includes a first screw rod 141 and a second screw rod arranged in parallel. The first screw rod 141 and the second screw rod are respectively arranged on opposite sides of the first inkjet mechanism 12. A first screw rod nut is threadedly connected to the first screw rod 141, and a second screw rod nut is threadedly connected to the second screw rod. The first screw rod nut is connected to the first slider 132, and the second screw rod nut is connected to the second slider. In this way, the first supporting mechanism 11 can be driven to slide on the first guiding mechanism 13 by the synchronous rotation of the first screw rod 141 and the second screw rod. In this embodiment, the first screw rod 141 and the second screw rod are synchronously rotated by providing a first motor 142 and a second motor, the output shaft of the first motor 142 is coaxially connected to the first screw rod 141, the output shaft of the second motor is coaxially connected to the second screw rod, the first motor 142 and the second motor are both servo motors, and the same pulse signal is sent to the first motor 142 and the second motor respectively so that the output shafts of the first motor 142 and the second motor rotate synchronously, thereby realizing the synchronous rotation of the first screw rod 141 and the second screw rod (there are many ways to realize the synchronous rotation of the first screw rod 141 and the second screw rod, for example, pulleys are respectively installed on the first screw rod 141 and the second screw rod, and the first screw rod 141 and the second screw rod are driven to rotate by a synchronous belt).

[0057] The structure of the printing platform 20:

[0058] See also Fig. 9 and Fig.10 The printing platform 20 includes a second support mechanism 21 and a plurality of printing stations 22. The number of the printing stations 22 matches the number of the nozzle modules in the printing carriage 10, and one printing station 22 corresponds to one nozzle module. When the printing carriage 10 is located above the printing platform 20, the printing station 22 is located below the nozzle module corresponding to the printing station 22. The printing station 22 provides support for the printing medium when the printing medium passes between the printing carriage 10 and the printing platform 20. The surface of the printing station 22 in contact with the printing medium is the supporting surface (the supporting surface can be a plane or a curved surface). The supporting surfaces of all the printing stations 22 are located on the second curved surface, and the curvature radius of the second curved surface is greater than or equal to the curvature radius of the first curved surface. In the vertical direction, the feed roller 41 is located below any one of the printing stations 22, and the discharge roller 42 is located below any one of the printing stations 22.

[0059] The second support mechanism 21 includes a third support component 211 and a fourth support component 212 arranged in parallel. The third support component 211 and the fourth support component 212 are installed on the frame 40, and each printing station 22 is arranged between the third support component 211 and the fourth support component 212. The third support component 211 is provided with a plurality of third fixing holes at intervals, and the fourth support component 212 is provided with a plurality of fourth fixing holes at intervals; the two ends of the printing station 22 are respectively detachably fixedly connected with the third fixing hole of the third support component 211 and the fourth fixing hole of the fourth support component 212 corresponding to the third fixing hole. The detachable fixed connection method between the printing station 22 and the third fixing hole is the same as the detachable fixed connection method between the nozzle module and the first fixing hole, which will not be described here.

[0060] The structure of the cleaning device 30:

[0061] See also Figures 11 to 13 The cleaning device 30 includes a third supporting mechanism 31, an ink collecting box 32, a second guiding mechanism 33, a lifting driving mechanism 34, a first moisturizing mechanism and a first ink scraping mechanism. The first moisturizing mechanism includes a plurality of moisturizing components, and the first ink scraping mechanism includes a plurality of ink scraping components. The number of moisturizing components matches the number of nozzle modules, and one moisturizing component corresponds to one nozzle module. When the printing carriage 10 is located above the first moisturizing mechanism, the moisturizing component moisturizes the nozzle in the nozzle module corresponding to the moisturizing component. The moisturizing component includes at least one moisturizing tripod 35 (the surface of the moisturizing tripod 35 in contact with the nozzle nozzle is the moisturizing surface, and the structure and working principle of the moisturizing tripod 35 are well known to those skilled in the art and will not be described here). The moisturizing surfaces of all moisturizing components are located on the third curved surface, and the curvature radius of the third curved surface is the same as the curvature radius of the first curved surface.

[0062] The third supporting mechanism 31 includes a fifth supporting member 311 and a sixth supporting member 312 arranged in parallel. Figure 4 As shown, the fifth support component 311, the sixth support component 312, the third support component 211 and the fourth support component 212 are sequentially arranged along the first direction, and the fifth support component 311, the sixth support component 312, the third support component 211 and the fourth support component 212 are parallel to each other. Each moisturizing component is correspondingly provided with a moisturizing bracket, and the moisturizing component is installed on the moisturizing bracket corresponding to the moisturizing component, and each moisturizing bracket is arranged between the fifth support component 311 and the sixth support component 312. The fifth support component 311 is provided with a plurality of fifth fixing holes at intervals, and the sixth support component 312 is provided with a plurality of sixth fixing holes at intervals; the two ends of the moisturizing bracket are respectively detachably fixedly connected with the fifth fixing hole of the fifth support component 311 and the sixth fixing hole of the sixth support component 312 corresponding to the fifth fixing hole. The detachable fixed connection method of the moisturizing bracket and the fifth fixing hole is the same as the detachable fixed connection method of the nozzle module and the first fixing hole, which will not be described here.

[0063] The number of ink scraping assemblies matches the number of nozzle modules, and one ink scraping assembly corresponds to one nozzle module. The ink scraping assembly is used to scrape off the residual ink on the nozzle surface of the nozzle in the nozzle module opposite to the ink scraping assembly. The ink scraping assembly includes a scraper 36. The surface of the scraper 36 that contacts the nozzle is the ink scraping surface (the structure and working principle of the scraper 36 are well known to those skilled in the art and will not be described here). The ink scraping surfaces of all ink scraping assemblies are located on the fourth curved surface, and the curvature radius of the fourth curved surface is the same as the curvature radius of the first curved surface. Figure 4 and Figure 5 As shown, the scraper 36 is detachably mounted on the sixth support member 312. Specifically, the scraper 36 is mounted on a side surface of the sixth support member 312 facing the fifth support member 311. The scraper 36 can be mounted on the sixth support member 312 by screws (at Figure 5 The upward surface of the middle scraper 36 is the ink scraping surface).

[0064] like Fig.13 As shown, the ink collecting box 32 is arranged at each ink scraping assembly and directly below each ink scraping assembly, and is used to collect the residual ink scraped from the surface of the nozzle of the nozzle by the ink scraping assembly.

[0065] The third support mechanism 31 reciprocates on the second guide mechanism 33 to realize the reciprocating motion of the moisturizing component in the vertical direction. The second guide mechanism 33 includes a third guide rail 331 and a fourth guide rail 332. The third guide rail 331 and the fourth guide rail 332 are installed on the frame 40. The guiding directions of the third guide rail 331 and the fourth guide rail 332 are parallel to the vertical direction. The third guide rail 331 and the fourth guide rail 332 are respectively arranged on opposite sides of the third support mechanism 31. One end of the fifth support component 311 is installed on the third slider 333, one end of the sixth support component 312 is also installed on the third slider 333, the other end of the fifth support component 311 is installed on the fourth slider 334, and the other end of the sixth support component 312 is installed on the fourth slider 334. The third slider 333 is slidably connected to the third guide rail 331, and the fourth slider 334 is slidably connected to the fourth guide rail 332, so that the third support mechanism 31 slides on the third guide rail 331 and the fourth guide rail 332.

[0066] The third support mechanism 31 reciprocates on the second guide mechanism 33 under the drive of the lifting drive mechanism 34, so as to realize the reciprocating motion (up and down lifting) of the moisturizing component on the second guide mechanism 33. The lifting drive mechanism 34 includes a third screw rod 341 and a fourth screw rod 342. The third screw rod 341 and the fourth screw rod 342 are respectively arranged on opposite sides of the third support mechanism 31, and the axes of the third screw rod 341 and the fourth screw rod 342 are parallel to the vertical direction. The third screw rod 341 is threadedly connected with a third screw rod nut, and the fourth screw rod nut is threadedly connected with the fourth screw rod 342. The third screw rod nut is connected with the third slider 333, and the fourth screw rod nut is connected with the fourth slider 334; in this way, the third support mechanism 31 can be driven to slide on the second guide mechanism 33 by the synchronous rotation of the third screw rod 341 and the fourth screw rod 342. In this embodiment, a third motor 343 and a fourth motor 344 are provided to realize synchronous rotation of the third screw rod 341 and the fourth screw rod 342, the output shaft of the third motor 343 is coaxially connected to the third screw rod 341, the output shaft of the fourth motor 344 is coaxially connected to the fourth screw rod 342, the third motor 343 and the fourth motor 344 are both servo motors, and the same pulse signal is sent to the third motor 343 and the fourth motor 344 respectively so that the output shafts of the third motor 343 and the fourth motor 344 rotate synchronously, thereby realizing synchronous rotation of the third screw rod 341 and the fourth screw rod 342 (there are many ways to realize synchronous rotation of the third screw rod 341 and the fourth screw rod 342, for example, pulleys are respectively installed on the third screw rod 341 and the fourth screw rod 342, and the third screw rod 341 and the fourth screw rod 342 are driven to rotate by a synchronous belt).

[0067] In this embodiment, the first curved surface, the second curved surface, the third curved surface and the fourth curved surface may be curved surfaces, wavy surfaces and the like, and are mainly curved surfaces.

[0068] The working principle of the printer in this embodiment is:

[0069] In this embodiment, the printing medium used by the printer is a label paper tape, and the nozzles in each inkjet module print labels on the label paper tape. The printer sets the support surface of all printing platforms 22 on the second curved surface, and the curvature radius of the second curved surface is greater than or equal to the curvature radius of the first curved surface, so that the flexible label paper tape is tightened when passing through the printing platform 20, avoiding wrinkles on the surface of the flexible printing medium, resulting in deformation of the printed image.

[0070] The printer in this embodiment arranges the moisturizing surfaces of all moisturizing components on the third curved surface, and the curvature radius of the third curved surface is the same as the curvature radius of the first curved surface, so that the curved surface where the moisturizing surfaces of the moisturizing components are located is parallel to the curved surface where the nozzle surface of the nozzle is located, which facilitates the moisturizing components to clean and moisturize the nozzle, thereby improving the moisturizing effect.

[0071] The first inkjet mechanism 12 of this embodiment can be driven by the first drive mechanism 14 on the first guide mechanism 13 to reciprocate above the printing platform 20 and the cleaning device 30, so that the nozzle is located above the printing platform 20 for inkjet printing when in the inkjet state, and the nozzle is located above each moisturizing component for moisturizing when in the moisturizing state, thereby reducing the risk of nozzle blockage and increasing the life of the nozzle. In the process of the first inkjet mechanism 12 moving from above the printing platform 20 to above the cleaning device 30, the nozzles in each nozzle module will contact the scraper 36, and the scraper 36 will scrape off the residual ink at the nozzle of the nozzle.

[0072] The moisturizing component can be raised and lowered under the drive of the lifting drive mechanism 34. When the printing carriage needs to be moisturized, the printing carriage moves to the top of the cleaning device, and the moisturizing component rises to the cleaning device under the drive of the lifting drive mechanism. The moisturizing component contacts the nozzle of the print head in the printing carriage to moisturize the print head of the printing carriage. When there is no need to moisturize the print head of the printing carriage, the lifting drive mechanism can drive the moisturizing component to descend, so that a gap is generated between the moisturizing component and the nozzle module. This arrangement is used to prevent the moisturizing component from interfering with the movement of the printing carriage during the process of the printing carriage moving from the printing platform to the top of the cleaning device.

[0073] Embodiment 2:

[0074] The printer in the second embodiment of the present invention is improved on the basis of the first embodiment. Specifically, the printing carriage 10 of the printer in the second embodiment further includes a pre-curing mechanism, a final curing mechanism and a heating mechanism. Figure 7As shown, in this embodiment, the number of nozzle modules is 9 in total, which are, from left to right, the first nozzle module 121, the second nozzle module 122, the third nozzle module 123, the fourth nozzle module 124, the fifth nozzle module 125, the sixth nozzle module 126, the seventh nozzle module 127, the eighth nozzle module 128 and the ninth nozzle module 129. Among them, the nozzles in the first nozzle module 121 and the second nozzle module 122 are used for inkjet printing of white ink, the nozzles in the third nozzle module 123 and the fourth nozzle module 124 are used for inkjet printing of color ink, the nozzles in the fifth nozzle module 125 and the sixth nozzle module 126 are used for inkjet printing of varnish, and the nozzles in the seventh nozzle module 127, the eighth nozzle module 128 and the ninth nozzle module 129 are used for inkjet printing of other types of inks, such as hand-feeling oil.

[0075] In one solution of the present embodiment: the pre-curing mechanism is used to pre-curing the ink sprayed by the nozzles in the first nozzle module 121, the second nozzle module 122, the third nozzle module 123, the fourth nozzle module 124, the fifth nozzle module 125, and the sixth nozzle module 126; the final curing mechanism is used to final cure the ink sprayed by the nozzles in all the nozzle modules; the heating mechanism is used to heat the printing medium before inkjet printing. Among them, the pre-curing mechanism includes a first pre-curing lamp 152, a second pre-curing lamp 153, and a third pre-curing lamp 154, the final curing mechanism includes a final curing lamp 155, the power of the final curing lamp 155 is greater than the power of the pre-curing lamp, and the heating mechanism includes a heating lamp 151. In the present solution, the heating lamp 151, the first nozzle module 121, the second nozzle module 122, the first pre-curing lamp 152, the third nozzle module 123, the fourth nozzle module 124, the second pre-curing lamp 153, the fifth nozzle module 125, the sixth nozzle module 126, the third pre-curing lamp 154, the seventh nozzle module 127, the eighth nozzle module 128, the ninth nozzle module 129 and the final curing lamp 155 are arranged in sequence along the conveying direction of the printing medium, that is, the first pre-curing lamp 152 is used for pre-curing the white ink sprayed by the nozzles in the first nozzle module 121 and the second nozzle module 122, the second pre-curing lamp 153 is used for pre-curing the color ink sprayed by the nozzles in the third nozzle module 123 and the fourth nozzle module 124, and the third pre-curing lamp 154 ​​is used for pre-curing the optical ink sprayed by the nozzles in the fifth nozzle module 125 and the sixth nozzle module 126.

[0076] The pre-curing lamp, the final curing lamp 155 and the heating lamp 151 are all arranged across the first supporting member 111 and the second supporting member 112. The first supporting member 111 is provided with a seventh fixing hole for each pre-curing lamp, and the second supporting member 112 is provided with an eighth fixing hole for each pre-curing lamp. The two ends of the pre-curing lamp are respectively detachably fixedly connected with the seventh fixing hole and the eighth fixing hole. The detachable fixing connection method between the pre-curing lamp and the seventh fixing hole is the same as the detachable fixing connection method between the nozzle module and the first fixing hole, which will not be described here. The first supporting member 111 is provided with a ninth fixing hole for the final curing lamp 155, and the second supporting member 112 is provided with a tenth fixing hole for the final curing lamp 155. The two ends of the final curing lamp 155 are respectively detachably fixedly connected with the ninth fixing hole and the tenth fixing hole. The detachable fixing connection method between the final curing lamp 155 and the ninth fixing hole is the same as the detachable fixing connection method between the nozzle module and the first fixing hole, which will not be described here. The first supporting component 111 is provided with an eleventh fixing hole relative to the heating lamp 151, and the second supporting component 112 is provided with a twelfth fixing hole relative to the heating lamp 151. Both ends of the heating lamp 151 are respectively detachably fixedly connected to the eleventh fixing hole and the twelfth fixing hole. The detachable fixed connection method between the heating lamp 151 and the eleventh fixing hole is the same as the detachable fixed connection method between the nozzle module and the first fixing hole, and will not be described here.

[0077] In another scheme of the present embodiment: the difference between this scheme and the previous scheme is that: a pre-curing lamp is arranged between every two adjacent nozzle modules, that is, after the nozzle in each nozzle module sprays out the ink, there is a pre-curing lamp to pre-cure the ink; such a setting has a better effect of pre-curing the ink.

[0078] The working principle of the printer in this embodiment is:

[0079] The printing carriage 10 in this embodiment is provided with various pre-curing lamps and final curing lamps 155 on the fixed frame, so that the ink droplets on the printing medium are pre-cured while the inkjet printing is being performed, and the printing medium is immediately subjected to final curing after the printing is completed. The pre-curing is conducive to leveling, ensuring that the ink droplets on the printing medium will not flow abnormally, and the pre-curing and enhanced curing method improves the quality of the final printed product. At the same time, in this embodiment, the heating lamp 151 is used to heat the printing medium before the nozzle prints, thereby increasing the adhesion of the ink to the printing medium.

[0080] Embodiment 3:

[0081] See also Fig.14The printer in the third embodiment of the present invention is improved on the basis of the first embodiment. Specifically, the printing carriage 10 in the printer in the third embodiment further includes a second inkjet mechanism 161, a third inkjet mechanism 162, a fourth support mechanism 163, a fifth support mechanism 164, a third guide mechanism 165, a fourth guide mechanism 166, a third drive mechanism 167 and a fourth drive mechanism 168. The first inkjet mechanism 12, the second inkjet mechanism 161 and the third inkjet mechanism 162 are sequentially arranged along the conveying direction of the printing medium.

[0082] In this embodiment, the structure of the second inkjet mechanism 161 is the same as that of the first inkjet mechanism 12, the structure of the third inkjet mechanism 162 is the same as that of the first inkjet mechanism 12, the structure of the fourth support mechanism 163 is the same as that of the first support mechanism 11, and the structure of the fifth support mechanism 164 is the same as that of the first support mechanism 11. The fourth support mechanism 163 is used to support each nozzle module in the second inkjet mechanism 161, and the connection structure of each nozzle module in the second inkjet mechanism 161 on the fourth support mechanism 163 is the same as the connection structure of each nozzle module in the first inkjet mechanism 12 on the first support mechanism 11; the fifth support mechanism 164 is used to support each nozzle module in the third inkjet mechanism 162, and the connection structure of each nozzle module in the third inkjet mechanism 162 on the fifth support mechanism 164 is the same as the connection structure of each nozzle module in the first inkjet mechanism 12 on the first support mechanism 11. The structure of the third guide mechanism 165 is the same as that of the first guide mechanism 13, and the structure of the fourth guide mechanism 166 is the same as that of the first guide mechanism 13; the connection method between the fourth support mechanism 163 and the third guide mechanism 165 is the same as the connection method between the first support mechanism 11 and the first guide mechanism 13, so that the nozzle module of the second inkjet mechanism 161 can reciprocate on the third guide mechanism 165; the connection method between the fifth support mechanism 164 and the fourth guide mechanism 166 is the same as the connection method between the first support mechanism 11 and the first guide mechanism 13, so that the nozzle module of the third inkjet mechanism 162 can reciprocate on the fourth guide mechanism 166. The structure of the fourth driving mechanism 168 is the same as that of the first driving mechanism 14, and the structure of the fifth driving mechanism is the same as that of the first driving mechanism 14; the connection method between the fourth supporting mechanism 163 and the third driving mechanism 167 is the same as the connection method between the first supporting mechanism 11 and the first driving mechanism 14, so that the nozzle module of the second inkjet mechanism 161 can be driven to slide back and forth by the third driving mechanism 167; the connection method between the fifth supporting mechanism 164 and the fourth driving mechanism 168 is the same as the connection method between the first supporting mechanism 11 and the first driving mechanism 14, so that the nozzle module of the third inkjet mechanism 162 can be driven to slide back and forth by the fourth driving mechanism 168.

[0083] The first inkjet mechanism 12 has 5 groups of nozzle modules, the second inkjet mechanism 161 has 5 groups of nozzle modules, and the third inkjet mechanism 162 has 5 groups of nozzle modules (the number of nozzle modules in the first inkjet mechanism 12, the second inkjet mechanism 161, and the third inkjet mechanism 162 can be multiple groups, such as two groups, three groups, four groups..., and the number of nozzle modules in each inkjet mechanism is not limited here, and since the nozzle modules are detachable, the number of nozzle modules in each inkjet mechanism can be different). Among them, the nozzles of each nozzle module in the first inkjet mechanism 12 are used for inkjet printing of white ink, the nozzles of each nozzle module in the second inkjet mechanism 161 are used for inkjet printing of color ink, and the nozzles of each nozzle module in the third inkjet mechanism 162 are used for inkjet printing of varnish.

[0084] At the same time, the cleaning device 30 of the printer in this embodiment also includes a second moisturizing mechanism, a third moisturizing mechanism, a second ink scraping mechanism and a third ink scraping mechanism (the second moisturizing mechanism, the third moisturizing mechanism, the second ink scraping mechanism and the third ink scraping mechanism are not shown in the figure), and the first moisturizing mechanism, the second moisturizing mechanism and the third moisturizing mechanism are sequentially arranged along the conveying direction of the printing medium. In this embodiment, the first moisturizing mechanism, the second moisturizing mechanism and the third moisturizing mechanism each include five groups of moisturizing components, and the five groups of moisturizing components in the second moisturizing mechanism correspond to one nozzle module in the second inkjet mechanism 161 one by one. When the second inkjet mechanism 161 is located above the second moisturizing mechanism, the moisturizing components in the second moisturizing mechanism moisturize the nozzle of the nozzle module in the second inkjet mechanism 161 corresponding to the moisturizing component. The five groups of moisturizing components in the third moisturizing mechanism correspond to one nozzle module in the third inkjet mechanism 162 one by one. When the third inkjet mechanism 162 is located above the third moisturizing mechanism, the moisturizing components in the third moisturizing mechanism moisturize the nozzle of the nozzle module in the third inkjet mechanism 162 corresponding to the moisturizing component. The moisturizing components in the first moisturizing mechanism, the second moisturizing mechanism and the third moisturizing mechanism have the same structure, and are connected to the third supporting mechanism 31 in the same manner.

[0085] In this embodiment, the first inkjet mechanism 12 is located above the printing platform 20, that is, the first inkjet mechanism 12 is located in the first position, at which time the first inkjet mechanism 12 is in the first inkjet state, the first inkjet mechanism 12 is located above the first moisturizing mechanism, that is, the first inkjet mechanism 12 is located in the second position, at which time the first inkjet mechanism 12 is in the first moisturizing state. The second inkjet mechanism 161 is located above the printing platform 20, that is, the second inkjet mechanism 161 is located in the third position, at which time the second inkjet mechanism 161 is in the second inkjet state, the second inkjet mechanism 161 is located above the second moisturizing mechanism, that is, the second inkjet mechanism 161 is located in the fourth position, at which time the second inkjet mechanism 161 is in the second moisturizing state. The third inkjet mechanism 162 is located above the printing platform 20, that is, the third inkjet mechanism 162 is located in the fifth position, at which time the third inkjet mechanism 162 is in the third inkjet state, the third inkjet mechanism 162 is located above the third moisturizing mechanism, that is, the third inkjet mechanism 162 is located in the sixth position, at which time the third inkjet mechanism 162 is in the third moisturizing state.

[0086] The first scraping mechanism, the second scraping mechanism, and the third scraping mechanism are sequentially arranged along the conveying direction of the printing medium. In this embodiment, the first scraping mechanism, the second scraping mechanism, and the third scraping mechanism each include five scraping components. The five scraping components in the second scraping mechanism correspond to one nozzle module in the second inkjet mechanism 161. In the process of the second inkjet mechanism 161 moving from above the printing platform 20 to above the second moisturizing device, the scraping components in the second scraping mechanism scrape ink from the nozzle of the nozzle module in the second inkjet mechanism 161 corresponding to the scraping component. The five scraping components in the third scraping mechanism correspond to one nozzle module in the third inkjet mechanism 162. In the process of the third inkjet mechanism 162 moving from above the printing platform 20 to above the third moisturizing device, the scraping components in the third scraping mechanism scrape ink from the nozzle of the nozzle module in the third inkjet mechanism 162 corresponding to the scraping component. The structures of the ink scraping components in the first ink scraping mechanism, the second ink scraping mechanism and the third ink scraping mechanism are the same, and the ink scraping components in the first ink scraping mechanism, the second ink scraping mechanism and the third ink scraping mechanism are connected to the third supporting mechanism 31 in the same way.

[0087] The working principle of the printer in this embodiment is:

[0088] The printing carriage 10 includes a first inkjet mechanism 12, a second inkjet mechanism 161 and a third inkjet mechanism 162. The inkjet mechanism with printing needs moves to the top of the printing platform 20 for inkjet printing, while the inkjet mechanism that does not need to participate in printing is moisturized in the moisturizing mechanism, thereby reducing the probability of dust adhering to the nozzles in the inkjet mechanisms that do not participate in printing, reducing the risk of nozzle clogging and damage, and increasing the service life of the nozzles (for example, in some special printing occasions, there is no need to print white ink, only color ink and varnish need to be printed, then the second inkjet mechanism 161 and the third inkjet mechanism 162 are moved to the top of the printing platform 20 for inkjet printing, and the first inkjet mechanism 12 is moisturized by the first moisturizing mechanism, thereby reducing the probability of dust adhering to the nozzles in the first inkjet mechanism 12).

[0089] Embodiment 4:

[0090] See also Fig.15 The printer in Example 4 of the present invention is improved on the basis of Example 3. Specifically, in the printer in Example 4, the surfaces of the nozzles in each nozzle module of the first inkjet mechanism 12, the second inkjet mechanism 161 and the third inkjet mechanism 162 are all located on the first curved surface.

[0091] Embodiment 5:

[0092] The printer in the fifth embodiment of the present invention is improved on the basis of the first embodiment. Specifically, the structure of the nozzle module in the printer is optimized in the fifth embodiment, such as Fig.16 As shown, a nozzle module includes a housing 1201, a temperature detector, an auxiliary ink cartridge 1203, a display, a first controller, three nozzle control boards 1202 and three nozzles 1205, and one nozzle control board 1202 is connected to one nozzle 1205 in a one-to-one correspondence. The auxiliary ink cartridge 1203 stores ink to supply ink to the three nozzles 1205, and the nozzle control board 1202 controls the nozzle to work (the working principle of the nozzle control board 1202 controlling the nozzle is well known to those skilled in the art and is not described in detail here). The temperature detector is used to detect the temperature of the auxiliary ink cartridge 1203 (the temperature detector can be a contact temperature detector or a non-contact temperature detector; the working principle of the temperature detector is well known to those skilled in the art and is not described in detail here).

[0093] like Fig.17As shown, the auxiliary ink cartridge 1203 is installed on the ink cartridge holder 1204, and the ink cartridge holder 1204 is fixedly connected to the housing 1201. Three annular heating belts are provided on the outer wall of the auxiliary ink cartridge 1203. Each heating belt is wound around the outer wall of the auxiliary ink cartridge 1203, and the inner wall of each heating belt is in contact with the outer wall of the auxiliary ink cartridge 1203, so that the ink in the auxiliary ink cartridge 1203 is heated by the heating belt. The three heating belts are respectively a first heating belt 12031, a second heating belt 12032 and a third heating belt 12033. 033, in the vertical direction, the first heating belt 12031, the second heating belt 12032 and the third heating belt 12033 are respectively arranged in sequence from top to bottom, and the height difference between the first heating belt 12031 and the second heating belt 12032 is equal to the height difference between the second heating belt 12032 and the third heating belt 12033, so as to ensure that the first heating belt 12031, the second heating belt 12032 and the third heating belt 12033 are evenly arranged on the outer wall of the auxiliary ink cartridge 1203 to evenly heat the ink.

[0094] The input end of the first controller is connected to the output end of the temperature detector, the first output end of the first controller is connected to the input end of the first heating belt 12031, the second output end of the first controller is connected to the input end of the second heating belt 12032, the third output end of the first controller is connected to the input end of the third heating belt 12033, and the fourth output end of the first controller is connected to the input end of the display.

[0095] At the same time, in the vertical direction, the nozzle is located below the auxiliary ink cartridge 1203, and the distance between the nozzle and the auxiliary ink cartridge 1203 is less than or equal to the first preset distance, so that the auxiliary ink cartridge 1203 can supply ink to the nozzle (in this embodiment, the first preset distance is 150 mm); in the vertical direction, the nozzle control board 1202 is located above the auxiliary ink cartridge 1203, thereby preventing ink from dripping onto the nozzle control board 1202.

[0096] The working principle of the above-mentioned nozzle module is as follows: the temperature detector detects the temperature of the auxiliary ink cartridge 1203 to generate a first temperature signal, and transmits the first temperature signal to the first controller, and the first controller compares the first temperature signal with the first preset temperature and the second preset temperature respectively, and the first preset temperature is lower than the second preset temperature. When the first temperature signal is lower than the first preset temperature, the first controller controls the first heating belt 12031, the second heating belt 12032 and the third heating belt 12033 to work, and when the first temperature signal is higher than the second preset temperature, the first heating belt 12031, the second heating belt 12032 and the third heating belt 12033 are controlled not to work. When the first heating belt 12031, the second heating belt 12032 and the third heating belt 12033 are working, the heat is transferred from the outer wall of the auxiliary ink cartridge 1203 into the auxiliary ink cartridge 1203, and the ink in the auxiliary ink cartridge 1203 is heated to ensure that the temperature of the ink is heated to between the first preset temperature and the second preset temperature, thereby improving the fluidity of the ink and improving the printing effect.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A segmented printing carriage, characterized in that: The segmented printing carriage comprises: Moisturizing mechanism; a first inkjet mechanism, when the first inkjet mechanism is in a first inkjet state, the first inkjet mechanism is located at a first position and performs inkjet printing on a printing medium; when the first inkjet mechanism is in a first moisturizing state, the first inkjet mechanism moves from the first position to a second position and is moisturized by the moisturizing mechanism; a second inkjet mechanism, when the second inkjet mechanism is in the second inkjet state, the second inkjet mechanism is located at the third position and performs inkjet printing on the printing medium; when the second inkjet mechanism is in the second moisturizing state, the second inkjet mechanism moves from the third position to the fourth position and is moisturized by the moisturizing mechanism; The moisturizing mechanism is divided into two groups, namely a first moisturizing mechanism and a second moisturizing mechanism, wherein the first moisturizing mechanism moisturizes the first inkjet mechanism, and the second moisturizing mechanism moisturizes the second inkjet mechanism; The first moisturizing mechanism includes a plurality of first moisturizing components, and projections of the plurality of first moisturizing components on the first plane are located on the first curved surface; The first inkjet mechanism includes a plurality of nozzle modules, each nozzle module includes at least one nozzle, and the surfaces of the nozzles of all nozzle modules are located on the first curved surface; The moisturizing component includes at least one moisturizing tripod, the surface of the moisturizing tripod in contact with the nozzle of the spray head is a moisturizing surface, and the moisturizing surfaces of all moisturizing components are located on the third curved surface, and the curvature radius of the third curved surface is the same as that of the first curved surface. The curvature radius of the surfaces is the same, so that the curved surface where the moisturizing surface of the moisturizing component is located is parallel to the curved surface where the nozzle surface of the spray head is located, which facilitates the moisturizing component to clean and moisturize the spray head; wherein the first curved surface and the third curved surface are arc-shaped surfaces or wavy curved surfaces; The segmented printing carriage further includes: a pre-curing mechanism, a final curing mechanism and a heating mechanism; wherein the pre-curing mechanism is used to pre-curing the ink ejected by the nozzles in each nozzle module, the final curing mechanism is used to final cure the ink ejected by the nozzles in each nozzle module, and the heating mechanism is used to heat the printing medium before inkjet printing is performed on the printing medium; The pre-curing mechanism also includes a plurality of pre-curing lamps, and one pre-curing lamp is arranged between every two adjacent nozzle modules.

2. The segmented printing carriage according to claim 1, characterized in that: The first inkjet mechanism is used for inkjet printing a first ink, and the second inkjet mechanism is used for inkjet printing a second ink different from the first ink.

3. The segmented printing carriage according to claim 1, characterized in that: The segmented printing carriage also includes: The first ink scraping mechanism scrapes ink from the first ink jetting mechanism when the first ink jetting mechanism moves from a first position to a second position.

4. The segmented printing carriage according to any one of claims 1 to 3, characterized in that: The segmented printing carriage also includes: A first guide mechanism, wherein the first inkjet mechanism reciprocates on the first guide mechanism.

5. The segmented printing carriage according to claim 4, characterized in that: The first guide mechanism includes a first guide rail and a second guide rail. The first guide rail and the second guide rail are respectively arranged on two opposite sides of the first inkjet mechanism. The first inkjet mechanism reciprocates on the first guide rail and the second guide rail.

6. The segmented printing carriage according to any one of claims 1 to 3, characterized in that: The segmented printing carriage also includes: The first driving mechanism drives the first inkjet mechanism to move from a first position to a second position.

7. The segmented printing carriage according to claim 6, characterized in that: The first driving mechanism includes a first screw rod and a second screw rod, which are respectively arranged on opposite sides of the first inkjet mechanism. A first screw rod nut is threadedly connected to the first screw rod, and a second screw rod nut is threadedly connected to the second screw rod. The first inkjet mechanism is respectively connected to the first screw rod nut and the second screw rod nut, and the first screw rod rotates synchronously with the second screw rod.

8. A printer, characterized in that: The printer comprises a segmented printing carriage as described in any one of claims 1 to 7.

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