CN211808446U - Printer with closed-loop drive control - Google Patents

Abstract

The utility model belongs to the technical field of the inkjet printing, the unable accurate inkjet mechanism that drives of actuating mechanism in having solved current printer moves to the position that needs, leads to the inconsistent problem of actual position and target location of inkjet mechanism, provides a closed loop drive control's printer. The printer with the closed-loop driving control detects the position of the ink jet mechanism by arranging the position detection mechanism, generates a position signal corresponding to the position of the ink jet mechanism, and receives the position signal through the control unit to control the driving mechanism to drive the ink jet mechanism to move, so that the ink jet mechanism is driven to move in a closed-loop manner, the ink jet mechanism is guaranteed to accurately move to a target position, and the printing effect is improved.

Description

Printer with closed-loop drive control

Technical Field

The utility model belongs to the technical field of the inkjet printing, concretely relates to closed loop drive control's printer.

Background

The ink jet mechanism in the traditional printer is driven by the driving mechanism to move to the moisturizing mechanism for moisturizing or move to the printing platform for printing, and the driving mechanism in the traditional printer cannot accurately drive the ink jet mechanism to move to a required position due to the manufacturing precision or special conditions and other reasons, so that the actual position and the target position of the ink jet mechanism are inconsistent, and the printing effect of the printer is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a closed loop drive control's printer for solve the unable accurate inkjet mechanism that drives of actuating mechanism among the current printer and move to the position that needs, lead to the inconsistent problem of inkjet mechanism's actual position and target location.

The utility model adopts the technical proposal that:

the utility model provides a closed loop drive control's printer, closed loop drive control's printer includes:

the ink jet mechanism is positioned at a first position and performs ink jet printing on a printing medium when the ink jet mechanism is in an ink jet state; when the ink-jet mechanism is in a moisturizing state, the ink-jet mechanism moves from a first position to a second position for moisturizing;

the driving mechanism drives the ink jetting mechanism to move;

a position detection mechanism for detecting the position of the ink ejection mechanism and generating a position signal corresponding to the position of the ink ejection mechanism;

and the control unit is electrically connected with the driving mechanism and the position detection mechanism and receives the position signal to control the driving mechanism to work.

As a preferable mode of the closed-loop drive controlled printer, the drive mechanism includes a first drive member and a second drive member, and the first drive member and the second drive member drive the ink-jet mechanism to move.

In the printer with the closed-loop driving control, the first driving member and the second driving member are respectively provided on opposite sides of the ink ejecting mechanism.

As a preferable embodiment of the closed-loop driving controlled printer, the position detection mechanism includes a first position detection component and a second position detection component, the first position detection component and the second position detection component are respectively disposed on two opposite sides of the inkjet mechanism, and the first position detection component is configured to detect a position of one side of the inkjet mechanism and generate a first position signal corresponding to the position of one side of the inkjet mechanism; the second position detection component is used for detecting the position of the other side of the ink jetting mechanism and generating a second position signal corresponding to the position of the other side of the ink jetting mechanism.

As a preferable scheme of the printer with the closed-loop driving control, the control unit is electrically connected to the first driving component, the second driving component, the first position detecting assembly and the second position detecting assembly, the control unit receives the first position signal to control the first driving component to operate, and the control unit receives the second position signal to control the second driving component to operate.

As a preferable scheme of the printer under the closed-loop driving control, the first position detecting assembly includes a first grating ruler and a first grating ruler reading head, a length direction of the first grating ruler is parallel to a movement direction of the inkjet mechanism, the first grating ruler reading head is connected to the inkjet mechanism, and the first grating ruler reading head is configured to read a reading on the first grating ruler to generate the first position signal; the second position detection assembly comprises a second grating ruler and a second grating ruler reading head, the length direction of the second grating ruler is parallel to the movement direction of the ink jet mechanism, the second grating ruler reading head is connected with the ink jet mechanism, and the second grating ruler reading head is used for reading the reading on the second grating ruler to generate the second position signal.

As a preferred embodiment of the closed-loop driving controlled printer, the first driving part is a first lead screw, the second driving part is a second lead screw, the first lead screw is connected to a first lead screw nut in a threaded manner, the second lead screw is connected to a second lead screw nut in a threaded manner, and the ink jet mechanism is connected to the first lead screw nut and the second lead screw nut respectively.

As a preferable scheme of the printer with the closed-loop driving control, the driving mechanism further includes a first motor and a second motor, an output shaft of the first motor is coaxially connected with the first lead screw, an output shaft of the second motor is coaxially connected with the second lead screw, and the control unit is electrically connected with the first motor and the second motor respectively.

As a preferable aspect of the printer under closed-loop drive control, the printer under closed-loop drive control further includes:

a first guide mechanism on which the ink ejection mechanism reciprocates.

As a preferable aspect of the closed-loop drive controlled printer, 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 provided on opposite sides of the ink jet mechanism, and the ink jet mechanism reciprocates on the first guide rail and the second guide rail.

To sum up, the utility model has the advantages that:

the utility model discloses a closed loop drive control's printer detects through setting up position detection mechanism the position of ink jet mechanism generates the position signal corresponding with the position of ink jet mechanism to receive through the control unit position signal control the actuating mechanism drive ink jet mechanism moves to realize closed loop drive ink jet mechanism motion, guarantee that ink jet mechanism accurate motion to the target position, improve and print the effect.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings, and these drawings are all within the protection scope of the present invention.

Fig. 1 is a schematic perspective view of a printer according to embodiment 1 of the present invention;

fig. 2 is a schematic perspective view of another perspective view of the printer in embodiment 1 of the present invention;

fig. 3 is a plan view of a printer according to embodiment 1 of the present invention;

FIG. 4 is a schematic view of the first ink-jet mechanism hidden in FIG. 3;

FIG. 5 is a cross-sectional view taken at C-C of FIG. 4;

fig. 6 is a schematic perspective view of a printing cart in embodiment 1 of the present invention;

fig. 7 is a front view of the printing cart according to embodiment 1 of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 6 at A;

fig. 9 is a schematic structural view of the printing cart positioned above the printing platform in embodiment 1 of the present invention;

FIG. 10 is a schematic view of the third support member shown in FIG. 9 with the third support member hidden;

fig. 11 is a schematic structural view of the printing cart located above the cleaning device in embodiment 1 of the present invention;

FIG. 12 is a partial enlarged view of FIG. 11 at B;

FIG. 13 is a schematic view showing the cleaning apparatus of FIG. 11 provided with an ink collecting container;

fig. 14 is a schematic structural view of a printing cart according to embodiment 3 of the present invention;

fig. 15 is a schematic cross-sectional view of the printing cart assembly according to embodiment 4 of the present invention;

fig. 16 is a sectional view of a head module according to embodiment 5 of the present invention;

fig. 17 is a schematic structural view of an auxiliary ink cartridge and an ink cartridge holder according to embodiment 5 of the present invention;

FIG. 18 is a schematic structural view of the sub ink tank of FIG. 17 with a first heat-insulating cover added;

FIG. 19 is a schematic structural view of the sub ink cartridge of FIG. 17 with a second heat-preserving cover, a third heat-preserving cover and a fourth heat-preserving cover added;

fig. 20 is a schematic perspective view of a printer according to embodiment 6 of the present invention;

fig. 21 is a top view of fig. 20.

Parts and numbering in the drawings:

10. printing the trolley; 11. a first support mechanism; 111. a first support member; 112. a second support member; 12. a first ink jetting mechanism; 121. a first showerhead module; 122. a second showerhead module; 123. a third nozzle module; 124. a fourth nozzle module; 125. a fifth showerhead module; 126. a sixth showerhead module; 127. a seventh showerhead module; 128. an eighth showerhead module; 129. a ninth showerhead module; 1201. a housing; 1202. a nozzle control plate; 1203. a sub ink cartridge; 12031. a first heating belt; 12032. a second heating belt; 12033. a third heating zone; 12034. a first heat-insulating cover; 12035. a second heat-insulating cover; 12036, a third heat preservation cover; 12037. a fourth heat-preserving cover; 1204. an ink cartridge holder; 1205. a spray head; 13. a first guide mechanism; 131. a first guide rail; 132. a first slider; 14. a first drive mechanism; 141. a first lead screw; 142. a first motor; 151. A heating lamp; 152. a first pre-cure lamp; 153. a second pre-cure lamp; 154. a third pre-cure lamp; 155. a final curing lamp; 161. a second ink jet mechanism; 162. a third ink jet mechanism; 163. a fourth support mechanism; 164. a fifth support mechanism; 165. A third guide mechanism; 166. a fourth guide mechanism; 167. a third drive mechanism; 168. a fourth drive mechanism; 181. a first grating scale; 182. a first grating scale reading head; 183. a second grating scale; 184. a second grating scale reading head;

20. a printing platform; 21. a second support mechanism; 211. a third support member; 212. a fourth support member; 22. a jet printing station;

30. a cleaning device; 31. a third support mechanism; 311. a fifth support member; 312. a sixth supporting member; 32. an ink collecting box; 33. a second guide mechanism; 331. a third guide rail; 332. a fourth guide rail; 333. a third slider; 334. a fourth slider; 34. a lifting drive mechanism; 341. a third screw rod; 342. a fourth screw rod; 343. a third motor; 344. a fourth motor; 35. D, moisturizing the ancient cooking vessel; 36. a scraper;

40. a frame; 41. a feed roll; 42. a discharging roller;

the direction of the arrow x is the conveying direction of the printing medium, the direction of the arrow z is vertically upward, the direction of the arrow y is a first direction, the first direction is perpendicular to the conveying direction of the printing medium, and the first direction is perpendicular to the vertical direction.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In case of conflict, various features of the embodiments and examples of the present invention may be combined with each other and are within the scope of the present invention.

Example 1:

referring to fig. 1 to 3, the present embodiment discloses a printer, which includes a frame 40, a printing cart 10, a printing platform 20, a cleaning device 30, a feeding roller 41 and a discharging roller 42, wherein the feeding roller 41 and the discharging roller 42 are respectively disposed on two opposite sides of the printing platform 20, a printing medium sequentially passes through the feeding roller 41, the printing platform 20 and the discharging roller 42 to form a conveying path of the printing medium (the conveying direction of the printing medium is shown by an arrow x in the drawing), 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 an arrow y in the drawing, and the vertical direction is shown by an arrow z in the drawing), and the feeding roller 41 and the discharging roller 42 are rotatably mounted on the frame 40. The printing platform 20 and the cleaning device 30 are both mounted on the frame 40, the cleaning device 30 is located on one side of the printing platform 20, when the printing trolley 10 is in an ink-jet state, the printing trolley 10 is located above the printing platform 20, and the printing trolley 10 performs ink-jet printing on the surface of a printing medium conveyed through the surface of the printing platform 20; when the printing trolley 10 is in the moisture-preserving state, the printing trolley 10 moves to the position above the cleaning device 30, and the cleaning device 30 cleans and preserves moisture for the spray heads on the printing trolley 10. For ease of understanding, the printing cart 10, the printing platform 20, and the cleaning apparatus 30 will now be described separately as follows:

structure of the printing carriage 10:

referring to fig. 6 to 8, the printing cart 10 includes a first supporting mechanism 11, a first ink jetting mechanism 12, a first guiding mechanism 13 and a first driving mechanism 14, the first ink jetting mechanism 12 includes a plurality of nozzle modules, each nozzle module includes at least one nozzle, and the surface of the nozzle of each nozzle module is located on a first curved surface. The first support mechanism 11 includes a first support member 111 and a second support member 112 arranged in parallel, and each head module is arranged to span between the first support member 111 and the second support member 112.

A plurality of first fixing holes are formed at intervals in the first supporting part 111, and a plurality of second fixing holes are formed at intervals in the second supporting part 112; two ends of the nozzle module are detachably and fixedly connected with a first fixing hole of the first supporting component 111 and a second fixing hole of the second supporting component 112, which is arranged corresponding to the first fixing hole. In this embodiment, the detachable fixing connection may be various, for example, a bolt is screwed to the end of the nozzle module after passing through the first fixing hole, so that the nozzle module is detachably fixed to the first supporting member 111.

The first support mechanism 11 reciprocates on the first guide mechanism 13 to realize the reciprocating motion of the first ink jet mechanism 12 on the first guide mechanism 13, the first guide mechanism 13 includes a first guide rail 131 and a second guide rail which are arranged in parallel, the first guide rail 131 and the second guide rail are mounted on the frame 40, and 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 two opposite sides of the first ink jet mechanism 12 along the first direction; and one end of the first guide rail 131 is located above the printing platform, the other end of the first guide rail 131 is located above the cleaning device, 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 member 111 is mounted on the first slider 132, one end of the second supporting member 112 is also mounted on the first slider 132, the other end of the first supporting member 111 is mounted on the second slider, the other end of the second supporting member 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 ink jet mechanism 12 slides on the first guide rail 131 and the second guide rail, and further the first supporting mechanism 11 slides on the first guide mechanism 13, so that the first ink jet mechanism 12 moves from above the printing platform to above the cleaning device or from above the cleaning device to above the printing platform.

The first support mechanism 11 reciprocates on the first guide mechanism 13 under the driving of the first driving mechanism 14 to realize that the first ink-jet mechanism 12 reciprocates on the first guide mechanism 13, the first driving mechanism 14 comprises a first screw rod 141 and a second screw rod which are arranged in parallel, the first screw rod 141 and the second screw rod are respectively arranged at two opposite sides of the first ink-jet mechanism 12, a first screw rod nut is connected on the first screw rod 141 by screw thread, a second screw rod nut is connected on the second screw rod by screw thread, the first screw rod nut is connected with the first slide block 132, and the second screw rod nut is connected with the second slide block; thus, the first support mechanism 11 can be driven to slide on the first guide mechanism 13 by the rotation of the first lead screw 141 and the second lead screw. In this embodiment, a first motor 142 and a second motor are provided to realize the rotation of the first lead screw 141 and the second lead screw, an output shaft of the first motor 142 is coaxially connected to the first lead screw 141, an output shaft of the second motor is coaxially connected to the second lead screw, both the first motor 142 and the second motor are servo motors, the output shaft of the first motor 142 rotates to drive the first lead screw 141 to rotate, and the output shaft of the second motor rotates to drive the second lead screw to rotate.

Structure of the printing platform 20:

referring to fig. 9 and 10, the printing platform 20 includes a second supporting mechanism 21 and a plurality of inkjet stations 22, the number of the inkjet stations 22 matches the number of the nozzle modules in the printing cart 10, and one inkjet station 22 corresponds to one nozzle module, and when the printing cart 10 is located above the printing platform 20, the inkjet station 22 is located below the nozzle module corresponding to the inkjet station 22. The ink jet printing station 22 provides support for the printing medium when the printing medium passes between the printing trolley 10 and the printing platform 20, the surface of the ink jet printing station 22 contacting with the printing medium is a support surface (the support surface can be a plane or a curved surface), all the support surfaces of the ink jet printing station 22 are located on a second curved surface, and the curvature radius of the second curved surface is greater than or equal to that of the first curved surface. In the vertical direction, the feed roller 41 is located below any one of the ink jet print stations 22, and the discharge roller 42 is located below any one of the ink jet print stations 22.

The second support mechanism 21 includes a third support member 211 and a fourth support member 212 arranged in parallel, the third support member 211 and the fourth support member 212 are mounted on the frame 40, and the respective ink jet pads 22 are disposed so as to straddle between the third support member 211 and the fourth support member 212. A plurality of third fixing holes are formed at intervals in the third supporting part 211, and a plurality of fourth fixing holes are formed at intervals in the fourth supporting part 212; two ends of the ink-jet pad 22 are detachably and fixedly connected to the third fixing hole of the third supporting member 211 and the fourth fixing hole of the fourth supporting member 212, which is disposed corresponding to the third fixing hole. The removable fixing connection between the ink pad 22 and the third fixing hole is the same as the removable fixing connection between the head module and the first fixing hole, and will not be described here.

Structure of the cleaning apparatus 30:

referring to fig. 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, wherein 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 the moisturizing components is matched with the number of the spray head modules, one moisturizing component corresponds to one spray head module one by one, and when the printing trolley 10 is positioned above the first moisturizing mechanism, the moisturizing components moisturize the spray heads in the spray head modules corresponding to the moisturizing components. The moisturizing component comprises at least one moisturizing tripod 35 (the surface of the moisturizing tripod 35 contacting with the nozzle of the sprayer is a moisturizing surface, the structure and the working principle of the moisturizing tripod 35 are well known to those skilled in the art and are not described herein), and the moisturizing surfaces of all the moisturizing components are located on a third curved surface, and the radius of curvature of the third curved surface is the same as that of the first curved surface.

The third support mechanism 31 includes a fifth support member 311 and a sixth support member 312 which are arranged in parallel, as shown in fig. 4, the fifth support member 311, the sixth support member 312, the third support member 211 and the fourth support member 212 are arranged in order in the first direction, and the fifth support member 311, the sixth support member 312, the third support member 211 and the fourth support member 212 are parallel to each other. Each moisturizing component is correspondingly provided with a moisturizing bracket, the moisturizing component is mounted on the moisturizing bracket corresponding to the moisturizing component, and each moisturizing bracket is arranged between the fifth supporting component 311 and the sixth supporting component 312 in a spanning manner. A plurality of fifth fixing holes are formed at intervals in the fifth supporting part 311, and a plurality of sixth fixing holes are formed at intervals in the sixth supporting part 312; two ends of the moisture-keeping support are respectively detachably and fixedly connected with the fifth fixing hole of the fifth supporting part 311 and the sixth fixing hole of the sixth supporting part 312, which is arranged corresponding to the fifth fixing hole. The detachable fixed connection manner of the moisturizing bracket and the fifth fixing hole is the same as the detachable fixed connection manner of the spray head module and the first fixing hole, and is not described herein.

The number of the ink scraping assemblies is matched with that of the spray head modules, one ink scraping assembly corresponds to one spray head module one by one, and the ink scraping assemblies are used for scraping residual ink on the surfaces of spray head nozzles in the spray head modules, which are opposite to the ink scraping assemblies. The ink scraping assembly comprises a scraper 36, the surface of the scraper 36 contacting the nozzle of the nozzle head is an ink scraping surface (the structure and the working principle of the scraper 36 are well known to those skilled in the art and are not described here), and the ink scraping surfaces of all the ink scraping assemblies are located on a fourth curved surface, and the radius of curvature of the fourth curved surface is the same as that of the first curved surface. As shown in fig. 4 and 5, the scraper 36 is detachably mounted on the sixth supporting member 312, specifically, the scraper 36 is mounted on a side surface of the sixth supporting member 312 facing the fifth supporting member 311, and the scraper 36 can be mounted on the sixth supporting member 312 by a screw (in fig. 5, an upward surface of the scraper 36 is an ink scraping surface).

As shown in fig. 13, the ink collecting container 32 is provided directly below each of the wiping units and each of the wiping units, and collects residual ink scraped off from the nozzle surface of the head by the wiping unit.

The third supporting mechanism 31 reciprocates on the second guiding mechanism 33 to realize the reciprocating motion of the moisturizing assembly in the vertical direction, the second guiding 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 mounted on the frame 40, and the guiding directions of the third guide rail 331 and the fourth guide rail 332 are parallel to the vertical direction. The third rail 331 and the fourth rail 332 are provided on opposite sides of the third support mechanism 31, respectively. One end of the fifth support member 311 is attached to the third slider 333, one end of the sixth support member 312 is also attached to the third slider 333, the other end of the fifth support member 311 is attached to the fourth slider 334, the other end of the sixth support member 312 is attached to 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.

The third supporting mechanism 31 reciprocates on the second guiding mechanism 33 under the driving of the lifting driving mechanism 34 to realize the reciprocating motion (up-down lifting) of the moisturizing component on the second guiding mechanism 33, the lifting driving 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 two opposite sides of the third supporting mechanism 31, and the axes of the third screw rod 341 and the fourth screw rod 342 are parallel to the vertical direction. A third screw nut is connected to the third screw 341 through a thread, a fourth screw nut is connected to the fourth screw 342 through a thread, the third screw nut is connected with the third slider 333, and the fourth screw nut is connected with the fourth slider 334; in this way, the third screw 341 and the fourth screw 342 rotate synchronously to drive the third supporting mechanism 31 to slide on the second guiding mechanism 33. In this embodiment, a third motor 343 and a fourth motor 344 are provided to achieve synchronous rotation of the third screw 341 and the fourth screw 342, an output shaft of the third motor 343 is coaxially connected to the third screw 341, an output shaft of the fourth motor 344 is coaxially connected to the fourth screw 342, both the third motor 343 and the fourth motor 344 are servo motors, and the same pulse signals are respectively sent to the third motor 343 and the fourth motor 344 to enable the output shafts of the third motor 343 and the fourth motor 344 to synchronously rotate, so as to achieve synchronous rotation of the third screw 341 and the fourth screw 342 (for example, a plurality of ways of achieving synchronous rotation of the third screw 341 and the fourth screw 342 may be provided, for example, pulleys are respectively installed on the third screw 341 and the fourth screw 342, and a synchronous belt drives the third screw 341 and the fourth screw 342 to rotate).

In this embodiment, the first curved surface, the second curved surface, the third curved surface, and the fourth curved surface may be curved surfaces such as an arc-shaped surface and a wave-shaped surface, and are mainly arc-shaped surfaces.

The working principle of the printer in the embodiment is as follows:

in this embodiment, the printing medium printed by the printer is a label paper tape, and the nozzles in the inkjet modules print labels on the label paper tape. The printer is arranged on the second curved surface by setting the supporting surfaces of all the ink-jet printing tables 22, and the curvature radius of the second curved surface is larger than or equal to that of the first curved surface, so that the flexible label paper tape is tightened when passing through the printing platform 20, and the problem of deformation of a printed image caused by wrinkles on the surface of a flexible printing medium is avoided.

The printer in this embodiment is located the third curved surface through setting up the face of moisturizing of all subassembly of moisturizing, and the radius of curvature of third curved surface is the same with the radius of curvature of first curved surface, makes the face of moisturizing place curved surface of subassembly of moisturizing parallel with the nozzle surface place curved surface of shower nozzle, and the subassembly of moisturizing of being convenient for washs the shower nozzle and moisturizes, has improved the effect of moisturizing.

The first ink jet mechanism 12 of this embodiment can be driven by the first driving mechanism 14 to move on the first guiding mechanism 13, so as to reciprocate above the printing platform 20 and the cleaning device 30, so that the nozzle is located above the printing platform 20 to perform ink jet printing in an ink jet state, and the nozzle is located above each moisture retention component to perform moisture retention in a moisture retention state, thereby reducing the risk of blockage of the nozzle and prolonging the service life of the nozzle. During the movement of the first ink jet mechanism 12 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.

The moisturizing component can be driven by the lifting driving mechanism 34 to lift, when the printing trolley needs to moisturize, the printing trolley moves to the position above the cleaning device, and the moisturizing component rises to the position in the cleaning device under the driving of the lifting driving mechanism and contacts with a nozzle of a spray head in the printing trolley to moisturize the spray head of the printing trolley; when need not to moisturize the shower nozzle of printing the dolly, lift actuating mechanism can drive the subassembly of moisturizing and descend for produce the clearance between subassembly of moisturizing and the shower nozzle module, so set up, one of them is avoided printing the dolly and moves the in-process to the belt cleaning device top from print platform, and the subassembly of moisturizing causes the interference to the motion of printing the dolly.

Example 2:

the printer in embodiment 2 is improved on the basis of embodiment 1. Specifically, the printing cart 10 of the printer in embodiment 2 further includes a pre-curing mechanism, a final-curing mechanism, and a heating mechanism. As shown in fig. 7, the number of the head modules in the present embodiment is 9 in total, and the first head module 121, the second head module 122, the third head module 123, the fourth head module 124, the fifth head module 125, the sixth head module 126, the seventh head module 127, the eighth head module 128, and the ninth head module 129 are sequentially arranged from left to right. The nozzles in the first nozzle module 121 and the second nozzle module 122 are used for printing white ink by inkjet, the nozzles in the third nozzle module 123 and the fourth nozzle module 124 are used for printing color ink by inkjet, the nozzles in the fifth nozzle module 125 and the sixth nozzle module 126 are used for printing gloss oil by inkjet, and the nozzles in the seventh nozzle module 127, the eighth nozzle module 128 and the ninth nozzle module 129 are used for printing other types of ink by inkjet, such as hand feeling oil.

In one aspect of this embodiment: the pre-curing mechanism is used for pre-curing the ink ejected 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 for performing final curing on the ink sprayed by the spray heads in all the spray head modules; the heating mechanism is used for heating the printing medium before the printing medium is subjected to ink jet printing. Wherein, the pre-curing mechanism comprises a first pre-curing lamp 152, a second pre-curing lamp 153 and a third pre-curing lamp 154, the final curing mechanism comprises a final curing lamp 155, the power of the final curing lamp 155 is greater than that of the pre-curing lamp, and the heating mechanism comprises a heating lamp 151. In this embodiment, the heating lamp 151, the first nozzle module 121, the second nozzle module 122, the first precuring lamp 152, the third nozzle module 123, the fourth nozzle module 124, the second precuring lamp 153, the fifth nozzle module 125, the sixth nozzle module 126, the third precuring lamp 154, the seventh nozzle module 127, the eighth nozzle module 128, the ninth nozzle module 129, and the final curing lamp 155 are sequentially disposed along a conveying direction of the printing medium, that is, the first precuring lamp 152 is used to precure white ink ejected from the nozzles of the first nozzle module 121 and the second nozzle module 122, the second precuring lamp 153 is used to precure color ink ejected from the nozzles of the third nozzle module 123 and the fourth nozzle module 124, and the third precuring lamp 154 is used to precure gloss ink ejected from the nozzles of the fifth nozzle module 125 and the sixth nozzle module 126.

The precuring lamp, the final curing lamp 155 and the heating lamp 151 are arranged between the first supporting part 111 and the second supporting part 112 in a spanning manner, the first supporting part 111 is provided with a seventh fixing hole corresponding to each precuring lamp, the second supporting part 112 is provided with an eighth fixing hole corresponding to each precuring lamp, two ends of the precuring lamp are respectively detachably and fixedly connected with the seventh fixing hole and the eighth fixing hole, and the detachable fixed connection manner of the precuring lamp and the seventh fixing hole is the same as that of the nozzle module and the first fixing hole, which is not described again. The first supporting member 111 is provided with a ninth fixing hole corresponding to the final curing lamp 155, the second supporting member 112 is provided with a tenth fixing hole corresponding to the final curing lamp 155, two ends of the final curing lamp 155 are respectively detachably and fixedly connected with the ninth fixing hole and the tenth fixing hole, and the detachable and fixed connection manner of the final curing lamp 155 and the ninth fixing hole is the same as the detachable and fixed connection manner of the nozzle module and the first fixing hole, which will not be described again. The first supporting member 111 is provided with an eleventh fixing hole corresponding to the heating lamp 151, the second supporting member 112 is provided with a twelfth fixing hole corresponding to the heating lamp 151, two ends of the heating lamp 151 are detachably and fixedly connected with the eleventh fixing hole and the twelfth fixing hole, respectively, and the detachable and fixed connection manner of the heating lamp 151 and the eleventh fixing hole is the same as the detachable and fixed connection manner of the showerhead module and the first fixing hole, which will not be described again.

In another aspect of this embodiment: the scheme is different from the previous scheme in that: a precuring lamp is arranged between every two adjacent nozzle modules, namely, the precuring lamp precures the ink after the nozzle in each nozzle module sprays the ink; this arrangement provides a better pre-cure of the ink.

The working principle of the printer in the embodiment is as follows:

the printing trolley 10 in the embodiment is characterized in that the pre-curing lamps and the final curing lamps 155 are arranged on the fixing frame, ink drops on a printing medium are pre-cured while ink jet printing is performed, the printing medium is immediately finally cured after printing is completed, pre-curing is beneficial to leveling, the condition that the ink drops on the printing medium flow abnormally is avoided, and the quality of a final printing product is improved in the pre-curing and reinforced curing modes. Meanwhile, in the present embodiment, the heating lamp 151 is used to heat the printing medium before the nozzle prints, so as to increase the adhesion of the ink on the printing medium.

Example 3:

referring to fig. 14, the printer according to embodiment 3 of the present invention is improved based on embodiment 1. Specifically, the printing cart 10 in the printer according to embodiment 3 further includes a second ink jet mechanism 161, a third ink jet 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 ink ejection mechanism 12, the second ink ejection mechanism 161, and the third ink ejection mechanism 162 are provided in this order along the conveyance direction of the printing medium.

In this embodiment, the structure of the second ink jet mechanism 161 is the same as that of the first ink jet mechanism 12, the structure of the third ink jet mechanism 162 is the same as that of the first ink jet mechanism 12, the structure of the fourth support mechanism 163 is the same as that of the first support mechanism 11, 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 for supporting each head module in the second ink jet mechanism 161, and the connection structure of each head module in the second ink jet mechanism 161 on the fourth support mechanism 163 is the same as that of each head module in the first ink jet mechanism 12 on the first support mechanism 11; the fifth supporting mechanism 164 is used for supporting each head module in the third ink jet mechanism 162, and the connection structure of each head module in the third ink jet mechanism 162 on the fifth supporting mechanism 164 is the same as the connection structure of each head module in the first ink jet mechanism 12 on the first supporting mechanism 11. The third guide mechanism 165 has the same structure as the first guide mechanism 13, and the fourth guide mechanism 166 has the same structure as the first guide mechanism 13; the fourth supporting mechanism 163 and the third guiding mechanism 165 are connected in the same way as the first supporting mechanism 11 and the first guiding mechanism 13, so that the nozzle module of the second ink jetting mechanism 161 can reciprocate on the third guiding mechanism 165; the fifth supporting mechanism 164 and the fourth guiding mechanism 166 are connected in the same manner as the first supporting mechanism 11 and the first guiding mechanism 13, so that the head module of the third ink jetting mechanism 162 can reciprocate on the fourth guiding mechanism 166. The fourth drive mechanism 168 has the same structure as the first drive mechanism 14, and the fifth drive mechanism has the same structure as the first drive mechanism 14; the connection mode of the fourth supporting mechanism 163 and the third driving mechanism 167 is the same as the connection mode of the first supporting mechanism 11 and the first driving mechanism 14, so that the nozzle module of the second ink jetting mechanism 161 can be driven by the third driving mechanism 167 to slide in a reciprocating manner; the connection between the fifth supporting mechanism 164 and the fourth driving mechanism 168 is the same as the connection between the first supporting mechanism 11 and the first driving mechanism 14, so that the head module of the third ink-jet mechanism 162 can be driven by the fourth driving mechanism 168 to slide back and forth.

The first ink jet mechanism 12 has 5 sets of nozzle modules, the second ink jet mechanism 161 has 5 sets of nozzle modules, and the third ink jet mechanism 162 has 5 sets of nozzle modules (the number of nozzle modules in the first ink jet mechanism 12, the second ink jet mechanism 161, and the third ink jet mechanism 162 may be multiple sets, such as two sets, three sets, and four sets … …, but the number of nozzle modules in each ink jet mechanism is not limited, and the number of nozzle modules in each ink jet mechanism may be different because the nozzle modules are detachable). The nozzles of the nozzle modules in the first ink jet mechanism 12 are used for jetting white ink, the nozzles of the nozzle modules in the second ink jet mechanism 161 are used for jetting color ink, and the nozzles of the nozzle modules in the third ink jet mechanism 162 are used for jetting ink and printing gloss oil.

Meanwhile, the cleaning device 30 of the printer in this embodiment further includes a second moisturizing mechanism, a third moisturizing mechanism, a second ink scraping mechanism, and a third ink scraping mechanism (not shown in the second moisturizing mechanism, the third moisturizing mechanism, the second ink scraping mechanism, and the third ink scraping mechanism), 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, each of the first moisturizing mechanism, the second moisturizing mechanism and the third moisturizing mechanism includes five groups of moisturizing assemblies, the five groups of moisturizing assemblies in the second moisturizing mechanism correspond to the nozzle modules in the second ink jet mechanism 161 one by one, and when the second ink jet mechanism 161 is located above the second moisturizing mechanism, the moisturizing assemblies in the second moisturizing mechanism moisturize the nozzles of the nozzle modules in the second ink jet mechanism 161 corresponding to the moisturizing assemblies. Five groups of moisturizing components in the third moisturizing mechanism correspond to the nozzle modules in the third ink jet mechanism 162 one by one, and when the third ink jet mechanism 162 is located above the third moisturizing mechanism, the moisturizing components in the third moisturizing mechanism moisturize the nozzles of the nozzle modules in the third ink jet mechanism 162 corresponding to the moisturizing components. The moisturizing components in the first moisturizing mechanism, the second moisturizing mechanism and the third moisturizing mechanism have the same structure, and the moisturizing components in the first moisturizing mechanism, the second moisturizing mechanism and the third moisturizing mechanism are connected with the third supporting mechanism 31 in the same manner.

In this embodiment, the first ink-jet mechanism 12 is located above the printing platform 20, that is, the first ink-jet mechanism 12 is located at the first position, and at this time, the first ink-jet mechanism 12 is in the first ink-jet state, and the first ink-jet mechanism 12 is located above the first humidity maintaining mechanism, that is, the first ink-jet mechanism 12 is located at the second position, and at this time, the first ink-jet mechanism 12 is in the first humidity maintaining state. The second ink jetting mechanism 161 is located above the printing platform 20, i.e., the second ink jetting mechanism 161 is located at the third position, when the second ink jetting mechanism 161 is in the second ink jetting state, the second ink jetting mechanism 161 is located above the second moisture preserving mechanism, i.e., the second ink jetting mechanism 161 is located at the fourth position, when the second ink jetting mechanism 161 is in the second moisture preserving state. The third ink jet mechanism 162 is located above the printing platform 20, that is, the third ink jet mechanism 162 is located at the fifth position, at this time, the third ink jet mechanism 162 is in the third ink jet state, the third ink jet mechanism 162 is located above the third moisture retention mechanism, that is, the third ink jet mechanism 162 is located at the sixth position, at this time, the third ink jet mechanism 162 is in the third moisture retention state.

The first ink scraping mechanism, the second ink scraping mechanism and the third ink scraping mechanism are arranged in sequence along the conveying direction of the printing medium. In this embodiment, each of the first ink scraping mechanism, the second ink scraping mechanism, and the third ink scraping mechanism includes five groups of ink scraping assemblies, five groups of ink scraping assemblies in the second ink scraping mechanism correspond to one head module in the second ink jet mechanism 161 one by one, and in the process that the second ink jet mechanism 161 moves from above the printing platform 20 to above the second moisturizing device, the ink scraping assemblies in the second ink scraping mechanism scrape the heads of the head module in the second ink jet mechanism 161 corresponding to the ink scraping assemblies. Five groups of ink scraping components in the third ink scraping mechanism correspond to the nozzle modules in the third ink jet mechanism 162 one by one, and in the process that the third ink jet mechanism 162 moves from the upper part of the printing platform 20 to the upper part of the third moisturizing device, the ink scraping components in the third ink scraping mechanism scrape the nozzles of the nozzle modules in the third ink jet mechanism 162 corresponding to the ink scraping components. The ink scraping assemblies in the first ink scraping mechanism, the second ink scraping mechanism and the third ink scraping mechanism have the same structure, and are connected with the third supporting mechanism 31 in the same way.

The working principle of the printer in the embodiment is as follows:

the printing trolley 10 comprises a first ink jet mechanism 12, a second ink jet mechanism 161 and a third ink jet mechanism 162, wherein the ink jet mechanism with a printing requirement moves to the position above the printing platform 20 for ink jet printing, and the ink jet mechanism without printing is moisturized in the moisturizing mechanism, so that the probability of dust adhesion to a nozzle in the ink jet mechanism without printing is reduced, the risk of nozzle blockage and damage is reduced, and the service life of the nozzle is prolonged (for example, in some special printing occasions, white ink is not required to be printed, and only color ink and gloss oil are required to be printed, the second ink jet mechanism 161 and the third ink jet mechanism 162 move to the position above the printing platform 20 for ink jet printing, and the first ink jet mechanism 12 is moisturized by the first moisturizing mechanism, so that the probability of dust adhesion to the nozzle in the first ink jet mechanism 12 is reduced).

Example 4:

referring to fig. 15, the printer according to embodiment 4 of the present invention is improved based on embodiment 3. Specifically, in the printer of embodiment 4, the surfaces of the head nozzles in each head module of the first ink ejection mechanism 12, the second ink ejection mechanism 161, and the third ink ejection mechanism 162 are all located on the first curved surface.

Example 5:

the printer in embodiment 5 is improved on the basis of embodiment 1. Specifically, embodiment 5 optimizes the structure of the head modules in the printer, as shown in fig. 16, one head module includes a housing 1201, a temperature detector, a sub-cartridge 1203, a display, a first controller, three head control boards 1202, and three heads 1205, and one head control board 1202 is connected to one head 1205 one to one. The sub tank 1203 stores ink therein to supply the three heads 1205, and the head control board 1202 controls the heads to operate (the operation principle of the head control board 1202 controlling the heads is well known to those skilled in the art and will not be described in detail here). The temperature detector is used to detect the temperature of the sub cartridge 1203 (the temperature detector may be a contact type temperature detector or a non-contact type temperature detector; the operation principle of the temperature detector is well known to those skilled in the art and will not be described in detail here).

As shown in fig. 17, the sub cartridge 1203 is mounted on a cartridge holder 1204, the cartridge holder 1204 is fixedly connected with the housing 1201, three ring-shaped heating tapes are arranged on the outer wall of the sub cartridge 1203, each heating tape is wound on the outer wall of the sub cartridge 1203, the inner wall of each heating tape is attached to the outer wall of the sub cartridge 1203 to heat the ink in the sub cartridge 1203 by heating of the heating tape, the three heating tapes are respectively a first heating tape 12031, a second heating tape 12032 and a third heating tape 12033, the first heating tape 12031, the second heating tape 12032 and the third heating tape 12033 are respectively arranged in sequence from top to bottom in the vertical direction, the height difference between the first heating tape 12031 and the second heating tape 12032 is equal to the height difference between the second heating tape 12032 and the third heating tape 12033 to ensure that the first heating tape 12031, the second heating tape 12032 and the third heating tape 12033 are uniformly arranged on the outer wall of the sub cartridge 1203, the ink is heated uniformly.

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

Meanwhile, the spray head is positioned below the sub ink box 1203 in the vertical direction, and the distance between the spray head and the sub ink box 1203 is smaller than or equal to a first preset distance, so that the sub ink box 1203 supplies ink to the spray head (the first preset distance is 150mm in the embodiment); the head control board 1202 is located above the sub ink cartridge 1203 in the vertical direction, thereby preventing ink from dropping on the head control board 1202.

The working principle of the spray head module is as follows: the temperature detector detects the temperature of the sub ink box 1203 to generate a first temperature signal, and transmits the first temperature signal to the first controller, the first controller compares the first temperature signal with a first preset temperature and a second preset temperature respectively, and the first preset temperature is lower than the second preset temperature. When the first temperature signal is lower than a first preset temperature, the first controller controls the first heating belt 12031, the second heating belt 12032 and the third heating belt 12033 to operate, and when the first temperature signal is higher than a second preset temperature, the first heating belt 12031, the second heating belt 12032 and the third heating belt 12033 are controlled not to operate. When the first heating belt 12031, the second heating belt 12032 and the third heating belt 12033 work, heat is transferred into the auxiliary ink box 1203 from the outer wall of the auxiliary ink box 1203, ink in the auxiliary ink box 1203 is heated, and the ink is heated to a first preset temperature and a second preset temperature, so that the ink smoothness is improved, and the printing effect is improved.

Example 6:

as shown in fig. 20 and 21, the printer according to embodiment 6 of the present invention is modified from that of embodiment 1. Specifically, the printer in embodiment 6 further includes a first grating scale 181, a first grating scale reading head 182, a second grating scale 183, a second grating scale reading head 184, and a controller, where the first grating scale 181 and the second grating scale 183 are respectively disposed on two opposite sides of the first ink jet mechanism along the first direction, the first grating scale reading head 182 and the second grating scale reading head 184 are respectively disposed on two opposite sides of the first ink jet mechanism along the first direction, the first grating scale reading head 182 correspondingly reads a reading on the first grating scale 181, and the second grating scale reading head 184 correspondingly reads a reading on the second grating scale 183.

The first raster reading head 182 and the second raster reading head 184 are mounted on the first supporting mechanism 11 (specifically, fixedly mounted on the lower portion of the first supporting member 111), and the first raster reading head 182 and the second raster reading head 184 move together with the first ink jet mechanism; the first and second linear scales 181 and 183 are mounted on the frame 40, and the length directions of the first and second linear scales 181 and 183 are parallel to the first direction (in this embodiment, the moving direction of the first ink jet device is parallel to the first direction). In this embodiment, the first raster ruler 181 is located right below the first raster ruler reading head 182, the first raster ruler reading head 182 faces the first raster ruler 181 vertically downward, and the first raster ruler reading head 182 correspondingly reads the reading on the first raster ruler 181 to detect the position of one side of the first ink jet mechanism (the position of the right side of the first ink jet mechanism in the first direction in fig. B) and generate the first position signal. The second grating scale 183 is located right below the second grating scale reading head 184, the second grating scale reading head 184 faces the second grating scale 183 vertically downward, and the second grating scale reading head 184 correspondingly reads the reading on the second grating scale 183 to detect the position of the other side of the first ink jet mechanism (the position of the left side of the first ink jet mechanism in the first direction in fig. B) and generate a second position signal.

The first input end of the controller is electrically connected with the output end of the first grating scale reading head 182, the second input end of the controller is electrically connected with the output end of the second grating scale reading head 184, the first output end of the controller is electrically connected with the input end of the first motor, and the second output end of the controller is electrically connected with the input end of the second motor. The controller receives the first position signal for processing and controls the first motor to work so as to realize that the right side of the first ink-jet mechanism moves to a target position; the controller receives the second position signal for processing and controls the second motor to work so as to realize that the right side of the first ink-jet mechanism moves to a target position (the first position signal is actually a value read by the first grating ruler reading head 182 on the first grating ruler 181, the target position is also a value, and the controller receives the first position signal for processing actually, the value received by the controller from the first position signal is smaller than the value compared with the target value, and the controller controls the first motor to rotate forwards or reversely according to the comparison result so as to enable the right side of the first ink-jet mechanism to move to the target position). The first grating scale reading head 182, the second grating scale reading head 184, the first motor, the second motor and the controller jointly realize the closed-loop driving of the ink-jet mechanism to move, so that the two sides of the first ink-jet machine accurately move to a target position, and the effect of spraying and printing of the first ink-jet machine is not affected.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A closed-loop drive controlled printer, comprising:

the ink jet mechanism is positioned at a first position and performs ink jet printing on a printing medium when the ink jet mechanism is in an ink jet state; when the ink-jet mechanism is in a moisturizing state, the ink-jet mechanism moves from a first position to a second position for moisturizing;

the driving mechanism drives the ink jetting mechanism to move;

a position detection mechanism for detecting the position of the ink ejection mechanism and generating a position signal corresponding to the position of the ink ejection mechanism;

and the control unit is electrically connected with the driving mechanism and the position detection mechanism and receives the position signal to control the driving mechanism to work.

2. The closed loop drive controlled printer of claim 1 wherein the drive mechanism includes a first drive member and a second drive member, the first and second drive members driving movement of the ink ejection mechanism.

3. A closed loop drive controlled printer according to claim 2 wherein the first drive member and the second drive member are provided on opposite sides of the ink ejection mechanism.

4. The closed loop drive controlled printer of claim 3 wherein the position detection mechanism includes a first position detection assembly and a second position detection assembly, the first position detection assembly and the second position detection assembly being disposed on opposite sides of the ink ejection mechanism, respectively, the first position detection assembly being configured to detect a position of one side of the ink ejection mechanism and generate a first position signal corresponding to the position of the one side of the ink ejection mechanism; the second position detection component is used for detecting the position of the other side of the ink jetting mechanism and generating a second position signal corresponding to the position of the other side of the ink jetting mechanism.

5. The closed-loop drive controlled printer of claim 4, wherein the control unit is electrically connected to the first drive component, the second drive component, the first position detection assembly, and the second position detection assembly, respectively, the control unit receiving the first position signal to control operation of the first drive component, the control unit receiving the second position signal to control operation of the second drive component.

6. The closed loop drive controlled printer of claim 4 wherein the first position sensing assembly includes a first linear scale having a length direction parallel to the direction of movement of the ink ejection mechanism and a first linear scale reading head coupled to the ink ejection mechanism for reading a first linear scale reading to generate the first position signal; the second position detection assembly comprises a second grating ruler and a second grating ruler reading head, the length direction of the second grating ruler is parallel to the movement direction of the ink jet mechanism, the second grating ruler reading head is connected with the ink jet mechanism, and the second grating ruler reading head is used for reading the reading on the second grating ruler to generate the second position signal.

7. The closed loop drive controlled printer of any one of claims 2 to 6, wherein the first drive member is a first lead screw, the second drive member is a second lead screw, a first lead screw nut is threadedly connected to the first lead screw, a second lead screw nut is threadedly connected to the second lead screw, and the ink ejection mechanism is connected to the first lead screw nut and the second lead screw nut, respectively.

8. The closed-loop drive controlled printer of claim 7, wherein the drive mechanism further comprises a first motor and a second motor, an output shaft of the first motor is coaxially connected to the first lead screw, an output shaft of the second motor is coaxially connected to the second lead screw, and the control unit is electrically connected to the first motor and the second motor, respectively.

9. The closed-loop drive controlled printer of any one of claims 1 to 6, further comprising:

a first guide mechanism on which the ink ejection mechanism reciprocates.

10. The closed loop drive controlled printer of claim 9 wherein the first guide mechanism includes a first rail and a second rail, the first rail and the second rail being disposed on opposite sides of the ink jetting mechanism, respectively, the ink jetting mechanism reciprocating on the first rail and the second rail.

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