阅读说明：本技术 3d打印头及3d打印机 (3D beats printer head and 3D printer ) 是由 闫涛 马玺 王军伟 于 2020-07-27 设计创作，主要内容包括：本发明涉及一种3D打印头及3D打印机。3D打印机包括3D打印头。所述的3D打印头包括：安装框架、供墨组件以及喷墨组件；所述安装框架包括连接板、三点调节板以及盖板,所述连接板用于连接驱动模组并带动所述3D打印头运动,所述三点调节板设置于所述连接板上,所述盖板活动安装于所述三点调节板上；所述供墨组件包括相互连通的墨盒与分流管,所述墨盒安装于所述三点调节板上,所述分流管设置于所述盖板上；所述喷墨组件包括打印底板、喷头以及驱动板卡,所述打印底板与所述盖板连接,所述喷头安装于所述打印底板上,且与所述分流管连通,所述驱动板卡插接于所述喷头上。所述3D打印头及3D打印机,可便于控制墨盒温度,且安装维护成本较低。(The invention relates to a 3D printing head and a 3D printer. The 3D printer includes a 3D print head. The 3D print head includes: the ink supply device comprises a mounting frame, an ink supply assembly and an ink jet assembly; the mounting frame comprises a connecting plate, a three-point adjusting plate and a cover plate, the connecting plate is used for connecting a driving module and driving the 3D printing head to move, the three-point adjusting plate is arranged on the connecting plate, and the cover plate is movably mounted on the three-point adjusting plate; the ink supply assembly comprises an ink box and a shunt pipe which are communicated with each other, the ink box is arranged on the three-point adjusting plate, and the shunt pipe is arranged on the cover plate; the ink jet assembly comprises a printing bottom plate, a spray head and a driving board card, the printing bottom plate is connected with the cover plate, the spray head is installed on the printing bottom plate and communicated with the flow dividing pipe, and the driving board card is inserted into the spray head. 3D beats printer head and 3D printer, the control ink horn temperature of can being convenient for, and the installation maintenance cost is lower.)

1. A3D print head, the 3D print head comprising: the ink supply device comprises a mounting frame, an ink supply assembly and an ink jet assembly;

the mounting frame comprises a connecting plate, a three-point adjusting plate and a cover plate, the connecting plate is used for connecting a driving module and driving the 3D printing head to move, the three-point adjusting plate is arranged on the connecting plate, and the cover plate is movably mounted on the three-point adjusting plate;

the ink supply assembly comprises an ink box and a shunt pipe which are communicated with each other, the ink box is arranged on the three-point adjusting plate, and the shunt pipe is arranged on the cover plate;

the ink jet assembly comprises a printing bottom plate, a spray head and a driving board card, the printing bottom plate is connected with the cover plate, the spray head is installed on the printing bottom plate and communicated with the flow dividing pipe, and the driving board card is inserted into the spray head and used for controlling the spray head to spray ink.

2. The 3D printhead of claim 1, wherein the shunt tube comprises a plurality of branches, the branches communicating with each other.

3. The 3D printhead according to claim 2, wherein the plurality of nozzles are arranged in an array on the printing substrate, and each row of the nozzles is arranged corresponding to one of the branch pipes.

4. The 3D printhead of claim 1, wherein the cover plate is provided with positioning seats corresponding to three-point positions of the three-point adjusting plate, and the positioning seats are provided with differential heads for adjusting horizontal straightness of the three-point adjusting plate.

5. The 3D print head of claim 4, wherein the differential head has a knob at one end and a push rod at the other end, the push rod abutting the three-point adjustment plate in a horizontal direction.

6. The 3D print head of claim 1, wherein a mounting distance between the three-point adjustment plate and the cover plate is adjusted by a bolt.

7. The 3D printhead of claim 6, wherein the mounting distance is adjusted in a range of 3mm to 3.5 mm.

8. The 3D printing head according to claim 1, wherein fixing ribs are connected to two ends of the cover plate, and the fixing ribs are connected with the driving board in an insulating mode and used for limiting displacement of the driving board.

9. The 3D printing head according to claim 8, wherein the fixing rib and the driving plate card are correspondingly provided with threaded holes, and an insulating bolt penetrates through the correspondingly arranged threaded holes.

10. The 3D printhead of claim 1, wherein the cartridge is a cartridge body made of a non-metallic material.

11. The 3D printhead of claim 1, wherein the cover plate is provided with a power plug and a fiber optic protective case.

12. A 3D printer, characterized in that the 3D printer comprises a 3D print head according to any one of claims 1 to 11.

Technical Field

The invention relates to the technical field of 3D printing, in particular to a 3D printing head and a 3D printer.

Background

The printing mechanism of 3D printer has multiple problem and risk at present. Firstly, as a piezoelectric type nozzle is used in 3D printing, the problem of ink spraying effect of the nozzle directly influences the printing quality, one of important factors influencing the ink spraying effect is the ink viscosity, the ink viscosity is greatly influenced by the temperature, a driving board card releases heat in the printing process, an ink box or an ink tube is arranged in a printing mechanism, the ink temperature is changed to reach 40 ℃ at the highest, and the poor ink spraying effect of the nozzle is caused, even printing scrapping is caused; secondly, the installation and maintenance of the ink tube and the ink box are very inconvenient, so that the installation and maintenance cost is high; in addition, the height and the straightness of the printing mechanism are adjusted in the current positioning mode of the printing mechanism, the number of adjusting points is large, the number of adjusting bolts is large, the bolt adjusting graduation is rough and not fine enough, inconvenience is brought to precision adjustment of the printing mechanism installed on equipment, and the adjusting difficulty is increased.

Disclosure of Invention

Therefore, it is necessary to provide a 3D printing head and a 3D printer with good ink jetting effect, convenient height and linearity adjustment, and low installation and maintenance costs, aiming at the problems of the existing printing mechanism such as the above problems and risks.

A 3D printhead, said 3D printhead comprising: the ink supply device comprises a mounting frame, an ink supply assembly and an ink jet assembly; the mounting frame comprises a connecting plate, a three-point adjusting plate and a cover plate, the connecting plate is used for connecting a driving module and driving the 3D printing head to move, the three-point adjusting plate is arranged on the connecting plate, and the cover plate is movably mounted on the three-point adjusting plate; the ink supply assembly comprises an ink box and a shunt pipe which are communicated with each other, the ink box is arranged on the three-point adjusting plate, and the shunt pipe is arranged on the cover plate; the ink jet assembly comprises a printing bottom plate, a spray head and a driving board card, the printing bottom plate is connected with the cover plate, the spray head is installed on the printing bottom plate and communicated with the flow dividing pipe, and the driving board card is inserted into the spray head and used for controlling the spray head to spray ink.

In one embodiment, the shunt tube includes a plurality of legs, each of which communicates with each other.

In one embodiment, the number of the nozzles is several, each of the nozzles is arranged on the printing bottom plate in an array, and each row of the nozzles is arranged corresponding to one of the branch pipes.

In one embodiment, the cover plate is provided with a positioning seat corresponding to three-point positions of the three-point adjusting plate, and the positioning seat is provided with a differential head for adjusting horizontal straightness of the three-point adjusting plate.

In one embodiment, one end of the differential head is provided with a knob, and the other end of the differential head is provided with a push rod which is abutted against the three-point adjusting plate along the horizontal direction.

In one embodiment, the mounting distance between the three-point adjusting plate and the cover plate is adjusted through bolts.

In one embodiment, the adjustment range of the installation distance is 3 mm-3.5 mm.

In one embodiment, two ends of the cover plate are connected with fixing ribs, and the fixing ribs are connected with the driving board card in an insulating mode and used for limiting the displacement of the driving board card.

In one embodiment, the fixing rib and the driving board card are correspondingly provided with threaded holes, and an insulating bolt penetrates through the correspondingly arranged threaded holes.

In one embodiment, the ink cartridge is a cartridge body made of a non-metal material.

In one embodiment, the cover plate is provided with a power plug and a fiber protection box.

A 3D printer, the 3D printer comprising the 3D printhead of any of the above embodiments.

According to the 3D printing head and the 3D printer, the ink box of the printing mechanism is externally arranged on the three-point adjusting plate, so that the problem that the ink-jet quality is reduced due to the fact that the ink box is heated due to the fact that the driving board card generates heat is effectively solved, and the ink temperature is changed, and then the ink viscosity is changed; meanwhile, the ink box is externally arranged, so that the ink box can be simply and effectively cooled by natural wind in the printing process; the three-point adjusting plate is movably arranged on the cover plate, so that the height and the straightness of the printing mechanism can be stably and efficiently adjusted; furthermore, the shunt pipes are arranged on the cover plate, so that a plurality of liquid inlet pipes connected between the ink box and the spray head are effectively replaced, the installation complexity of the printing mechanism is greatly simplified, and the installation and maintenance cost is favorably reduced.

Drawings

Fig. 1 is a schematic perspective view of a 3D printhead according to an embodiment.

Fig. 2 is a perspective view of the 3D printhead shown in fig. 1 from another perspective.

Fig. 3 is a partial structural schematic diagram of a 3D print head according to an embodiment.

Fig. 4 is a schematic perspective view of a 3D printhead according to another embodiment.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In one embodiment, a 3D printhead, the 3D printhead comprising: the ink supply device comprises a mounting frame, an ink supply assembly and an ink jet assembly; the mounting frame comprises a connecting plate, a three-point adjusting plate and a cover plate, the connecting plate is used for connecting a driving module and driving the 3D printing head to move, the three-point adjusting plate is arranged on the connecting plate, and the cover plate is movably mounted on the three-point adjusting plate; the ink supply assembly comprises an ink box and a shunt pipe which are communicated with each other, the ink box is arranged on the three-point adjusting plate, and the shunt pipe is arranged on the cover plate; the ink jet assembly comprises a printing bottom plate, a spray head and a driving board card, the printing bottom plate is connected with the cover plate, the spray head is installed on the printing bottom plate and communicated with the flow dividing pipe, and the driving board card is inserted into the spray head and used for controlling the spray head to spray ink.

In one embodiment, a 3D printer, the 3D printer including a 3D print head, the 3D print head comprising: the ink supply device comprises a mounting frame, an ink supply assembly and an ink jet assembly; the mounting frame comprises a connecting plate, a three-point adjusting plate and a cover plate, the connecting plate is used for connecting a driving module and driving the 3D printing head to move, the three-point adjusting plate is arranged on the connecting plate, and the cover plate is movably mounted on the three-point adjusting plate; the ink supply assembly comprises an ink box and a shunt pipe which are communicated with each other, the ink box is arranged on the three-point adjusting plate, and the shunt pipe is arranged on the cover plate; the ink jet assembly comprises a printing bottom plate, a spray head and a driving board card, the printing bottom plate is connected with the cover plate, the spray head is installed on the printing bottom plate and communicated with the flow dividing pipe, and the driving board card is inserted into the spray head and used for controlling the spray head to spray ink.

According to the 3D printing head and the 3D printer, the ink box of the printing mechanism is externally arranged on the three-point adjusting plate, so that the problem that the ink-jet quality is reduced due to the fact that the ink box is heated due to the fact that the driving board card generates heat is effectively solved, and the ink temperature is changed, and then the ink viscosity is changed; meanwhile, the ink box is externally arranged, so that the ink box can be simply and effectively cooled by natural wind in the printing process; the three-point adjusting plate is movably arranged on the cover plate, so that the height and the straightness of the printing mechanism can be stably and efficiently adjusted; furthermore, the shunt pipes are arranged on the cover plate, so that a plurality of liquid inlet pipes connected between the ink box and the spray head are effectively replaced, the installation complexity of the printing mechanism is greatly simplified, and the installation and maintenance cost is favorably reduced.

The 3D print head is described below with reference to specific embodiments to further understand the inventive concept of the 3D print head. Referring to fig. 1, a 3D print head, the 3D print head includes: mounting frame 100, ink supply assembly 200 and inkjet assembly 300; the ink supply assembly 200 and the inkjet assembly 300 are both disposed on the mounting frame 100, the ink supply assembly 200 provides printing liquid to the inkjet assembly 300, and the inkjet assembly 300 ejects ink to a printing surface to realize printing.

Specifically, the mounting frame 100 includes a connecting plate 110, a three-point adjusting plate 120 and a cover plate 130, the connecting plate 110 is used for connecting a driving module and driving the 3D printing head to move, the three-point adjusting plate 120 is disposed on the connecting plate 110, and the cover plate 130 is movably mounted on the three-point adjusting plate 120. In one embodiment, the connecting plate 110 is integrally connected to the three-point adjustment plate 120. In yet another embodiment, the connecting plate 110 is threadedly engaged with the three-point adjustment plate 120. That is, the fixed connection between the connecting plate 110 and the three-point adjusting plate 120 includes various ways such as an integral type or a detachable connection, and this embodiment is not particularly limited thereto. In one embodiment, the connecting plate 110 includes a connecting portion and a mounting portion, the connecting portion and the mounting portion are perpendicular to each other, the bottom end of the connecting portion is connected to the three-point adjusting plate 120, and the mounting portion is connected to the driving module of the 3D printhead. Thus, the ink supply assembly 200 and the ink jet assembly 300 supported on the three-point adjusting plate 120 can be printed synchronously with the movement of the driving module by the connecting plate 110. In one embodiment, the cover plate 130 is a rectangular plate, and the three-point adjusting plate 120 is a triangular plate. It should be noted that the cross-sectional area of the three-point adjustment plate 120 is smaller than that of the cover plate 130, so that the cover plate 130 can support the three-point adjustment plate 120 and other components.

In order to realize the vertical distance and the levelness between the printing bottom plate and the printing working surface, the mounting distance and the mounting angle between the three-point adjusting plate 120 and the cover plate 130 need to be adjusted at any time according to the working condition, and then the distance and the angle between the printing bottom plate connected with the cover plate and the printing working surface are adjusted. It is emphasized that the cover plate 130 is movably connected to the three-point adjusting plate 120. In one embodiment, the mounting distance between the three-point adjusting plate 120 and the cover plate 130 is adjusted by bolts. That is, the three-point adjusting plate 120 is connected to the cover plate 130 by bolts with adjustable distances. In one embodiment, the adjustment range of the installation distance is 3 mm-3.5 mm. Preferably, the mounting distance is 3.2 mm. Specifically, the triangular positions of the lower end surface of the three-point adjusting plate 120 are respectively provided with a thread clearance hole, so that the bolt connection is realized through the bolt and the threaded hole of the cover plate 130 corresponding to the three-point positions, and the distance between the printing bottom plate connected with the cover plate and the printing working surface is adjustable. According to practical experience and test results, the ink jet effect is best when the adjusting distance is correspondingly controlled to be between 3mm and 3.5 mm.

Referring to fig. 2, in order to achieve more precise adjustment of the horizontal straightness between the printing substrate and the printing working surface, in one embodiment, a positioning seat 131 corresponding to three points of the three-point adjusting plate 120 is disposed on the cover plate 130, and a differential head 132 is mounted on the positioning seat 131 for adjusting the horizontal straightness of the three-point adjusting plate 120. That is, the three-point positions of the three-point adjusting plate 120 may be respectively and correspondingly provided with a positioning seat 131, and each positioning seat 131 is correspondingly provided with a differential head 132; or two positioning seats 131 may be correspondingly disposed at two positions, and a differential head 132 is correspondingly mounted on each positioning seat 131. Preferably, the positioning seat 131 and the differential head 132 are respectively disposed at two points of the short side of the three-point adjusting plate 120, and the other point of the three-point adjusting plate 120 is fixedly disposed on the cover plate. That is, the other point is set as a fixed rotation point, and the other two points are abutted to the three-point adjusting plate 120 by using the corresponding differential head 132 and the positioning seat 131, so that when the rotational lengths of the differential heads 132 at the two sides of the three-point adjusting plate 120 are consistent, and the three-point adjusting plate 120 is fastened and abutted, the whole 3D printing head is automatically calibrated to form a stable triangular structure. Thus, compared with the conventional adjustment mode with 4 points or more adjustment points, the method has the following advantages: firstly, adjustment points and operation points are reduced, which is beneficial to reducing the labor force of debugging personnel; secondly, the precision adjustment principle is optimized, and a triangular stable structure is formed by three-point adjustment, so that the structure is firm and stable; most importantly, the three-point adjustment can be automatically calibrated and quickly positioned, so that the straightness adjustment difficulty is greatly reduced, the personnel level requirement is reduced, the working hours are reduced, and the labor cost is reduced.

Further, one end of the differential head 132 has a knob, and the other end is a push rod, and the push rod is horizontally abutted against the three-point adjusting plate 120. Specifically, the differential head 132 has an external thread, which is screwed into the internal thread of the positioning seat 131 correspondingly to form a fixed fitting structure; the knob that one end of differential head 132 set up, thereby the feed amount of cooperation positioning seat of adjustable differential head through rotating the knob, the other end of differential head 132 sets up the push rod and can carry out the flexible of graduation, when adjusting the horizontal straightness accuracy of whole printing mechanism, the terminal surface of push rod and the corresponding terminal surface contact of three-point adjustment board 120 form and push away and support the effect. Like this, to the adjustment mode that the tradition relied on the jackscrew to carry out screw pitch screw in or screw out, it is because self screw thread precision exists the not problem of refining up inadequately, so in the actual accommodation process, often adjust many or adjust less easily when appearing the spinning, lead to hardly finding the equilibrium point, print mechanism in this embodiment is adjusted through adopting differential head to replace the jackscrew, can realize being close to 0.01mm accurate regulation, has greatly improved the regulation precision of straightness accuracy to and the refinement of operation, it becomes possible to adjust with high accuracy.

Referring to fig. 3, the ink supply assembly 200 includes an ink cartridge 210 and a shunt 220, the ink cartridge 210 is mounted on the three-point adjusting plate 120, and the shunt 220 is disposed on the cover plate 130. Like this, through installing ink horn 210 on three point adjustment board 120, realize the external effect of ink horn 210 to can avoid the ink horn to set up and heat the ink horn because the drive integrated circuit board generates heat when printing mechanism is inside, thereby change the temperature of ink, cause the change of ink viscosity to influence inkjet quality then. In one embodiment, the ink box is provided with a temperature sensor for detecting the temperature of the ink in the ink box in real time. Therefore, the temperature of the ink box can be monitored by an operator in time to perform corresponding operation adjustment. In one embodiment, the ink cartridge is a cartridge body made of a non-metal material. Preferably, the ink cartridge 210 is a plastic cartridge. Like this, make its heat conductivility reduce through setting the ink horn into non-metallic material, the ink horn reduces to ambient temperature sensitivity like this to ensure that the ink temperature keeps at relatively stable user state in the ink horn. In one embodiment, the ink cartridge 210 is provided with a negative pressure connector and a negative pressure sensor, the negative pressure connector is connected to the air source system, and the negative pressure sensor detects the negative pressure value of the ink cartridge 210. Therefore, the pressure in the ink box is detected in real time, so that the ink can be lifted when the spray head connected with the ink box stops printing. In an embodiment, the ink cartridge 210 further includes a liquid inlet connector externally connected to the ink system, a liquid supply connector connected to the nozzle, and a liquid level sensor for detecting a liquid level of the ink cartridge to ensure real-time detection and timely ink supply. In one embodiment, the shunt tube 220 includes a plurality of branches, and the branches are in communication with each other. Particularly, adjacent branch pipes are detachably communicated through connecting pipes, so that each branch pipe of the flow dividing pipes can maintain balanced liquid supply. Further, referring to fig. 4, a sealing plug 230 is disposed at an end of each branch pipe. Thus, when the liquid supply needs to be adjusted, the sealing plug 230 can be installed after the connecting pipe at the end of the branch pipe is detached. Compared with the prior art in which a plurality of connecting pipes are inserted between the ink box and the spray head, the installation and maintenance cost of the equipment is greatly reduced by arranging the shunt pipes.

Referring to fig. 1 and fig. 2 again, in particular, the inkjet assembly 300 includes a printing base plate 310, a nozzle 320 and a driving board 330, the printing base plate 310 is connected to the cover plate 130, the nozzle 320 is mounted on the printing base plate 310 and is communicated with the shunt tube 220, and the driving board 330 is inserted into the nozzle 320 for controlling the nozzle to eject ink. The printing bottom plate 310 is provided with a plurality of nozzles, that is, a plurality of nozzles correspond to a nozzle. The driving board 330 is an electrical component for detecting and extracting nozzle ejection data, and the specific model and the data transmission principle can be found in technical documents related to the printing mechanism control system in the prior art, and are not detailed in this embodiment. The printing substrate 310 is connected to the cover plate 130, so that the printing substrate 310 carrying the ejection head 320 and the driving board 330 is mounted on the cover plate.

Referring to fig. 4, in one embodiment, the cover plate 130 is provided with a power plug 140 and a fiber protection box 150. Like this, power plug and optic fibre protection box are through installing on apron 130, and apron 130 and three-point adjusting plate 120 do not separate all the time, when dismantling like this, only need to break off the system, directly dismantle the following part of apron 130, and the cable still keeps pegging graft on the corresponding socket on apron 130, then can avoid repeated precision to follow-up secondary installation to adjust the flow, can fully reduce personnel's the operation degree of difficulty and work load again simultaneously.

In one embodiment, the cover plate 130 has side plates 160 mounted on both sides thereof, and the printing substrate 310 is mounted between the side plates. Thus, a mounting frame structure is formed among the cover plate, the two side plates and the printing bottom plate, and the spray head and the driving board are integrated in the mounting frame. Further, the driving board 330 is inserted into the nozzle 320 to effectively reduce the overall structure of the printing mechanism, and the insertion mode is more favorable for stably transmitting data. The nozzle 320 is connected to the shunt tube 220 through a connecting tube, specifically, two ends of the nozzle are respectively provided with a joint, the shunt tube is correspondingly provided with a liquid outlet joint, and the liquid outlet joint is connected to the joints through the connecting tube. In one embodiment, the nozzles 320 are provided in a plurality, each of the nozzles 320 is disposed on the printing substrate 310 in an array, and each row of the nozzles 320 corresponds to one of the branch pipes. In this embodiment, two of the four nozzles are arranged in parallel, two branch pipes are correspondingly arranged on the cover plate, each branch pipe corresponds to one row of nozzles, each row of nozzles has four connectors, and then four liquid outlet connectors are correspondingly arranged on the branch pipes. Therefore, the branch pipes with the plurality of branch pipes are arranged, and each branch pipe is arranged corresponding to one row of nozzles on the printing bottom plate, so that the arrangement of the branch pipes is reduced, and the ink supply efficiency is improved.

In order to avoid the problem that data loss occurs due to shaking of the driving board card during printing, in one embodiment, the two ends of the cover plate 130 are connected with fixing ribs 340, and the fixing ribs 340 are connected with the driving board card 330 in an insulating manner and used for limiting the displacement of the driving board card 330. Further, the fixing rib 340 and the driving board 330 are correspondingly provided with threaded holes, and an insulating bolt penetrates through the correspondingly arranged threaded holes. That is, the fixing rib 340 is provided with a threaded hole, the driving board 330 is correspondingly provided with a threaded hole, and an insulating bolt penetrates through the threaded hole between the two components. That is to say, drive integrated circuit board 330 passes through insulating bolt and is connected with the fixed muscle 340 of installing on the apron to be favorable to reducing the drive integrated circuit board 330 and printing the wobbling range of in-process, prevent to appear losing data, damage stitch scheduling problem. In one embodiment, the fixing ribs 340 are made of teflon. Namely, under the insulating prerequisite of assurance, utilize the drive integrated circuit board of fixed muscle auxiliary stay shower nozzle, guarantee that the drive plate card can not produce along with printing mechanism motion in-process and rock by a wide margin, prevent to appear losing data, damage stitch scheduling problem.

According to the 3D printing head, the ink box is mounted on the three-point adjusting plate, the external effect of the ink box is achieved, and the problem that the ink-jet quality is reduced due to the fact that the ink box is heated due to the fact that the driving board card generates heat is effectively solved, so that the temperature of ink is changed, and the viscosity of the ink is changed; meanwhile, the ink box is externally arranged, so that the ink box can be simply and effectively cooled by natural wind in the printing process; the three-point adjusting plate is movably arranged on the cover plate, so that the height and the straightness of the printing mechanism can be stably and efficiently adjusted; furthermore, the shunt pipes are arranged on the cover plate, so that a plurality of liquid inlet pipes connected between the ink box and the spray head are effectively replaced, the installation complexity of the printing mechanism is greatly simplified, and the installation and maintenance cost is favorably reduced.

In one embodiment, a 3D printer includes the 3D printhead of any of the above embodiments.

According to the 3D printer, the ink box of the printing mechanism is externally arranged on the three-point adjusting plate, so that the problem that the ink-jet quality is reduced due to the fact that the ink box is heated due to the fact that the driving board card generates heat is effectively solved, and therefore the temperature of ink is changed and the viscosity of the ink is changed; meanwhile, the ink box is externally arranged, so that the ink box can be simply and effectively cooled by natural wind in the printing process; the three-point adjusting plate is movably arranged on the cover plate, so that the height and the straightness of the printing mechanism can be stably and efficiently adjusted; furthermore, the shunt pipes are arranged on the cover plate, so that a plurality of liquid inlet pipes connected between the ink box and the spray head are effectively replaced, the installation complexity of the printing mechanism is greatly simplified, and the installation and maintenance cost is favorably reduced.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.