CN112277312A

CN112277312A - 3D beats printer head system and 3D printer

Info

Publication number: CN112277312A
Application number: CN202011063329.4A
Authority: CN
Inventors: 王军伟; 刘轶; 杜银学; 闫涛; 马利强; 彭凡
Original assignee: Kocel Intelligent Foundry Industry Innovation Center Co Ltd
Current assignee: Kocel Intelligent Foundry Industry Innovation Center Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-01-29

Abstract

The invention discloses a 3D printing head system and a 3D printer, which comprise an installation frame, an ink supply assembly and an ink jet assembly, wherein the ink supply assembly is arranged on the installation frame; the mounting frame is used for mounting the ink supply assembly and the ink jet assembly; the ink supply assembly comprises an ink box and a shunt pipe which are communicated with each other, and the ink box is arranged on the mounting frame; the inkjet subassembly includes shower nozzle and drive integrated circuit board, the shower nozzle with the shunt tubes intercommunication, the drive integrated circuit board connect in on the shower nozzle, be used for control the shower nozzle inkjet. By applying the 3D printing head system and the 3D printer provided by the invention, the shunt pipe can realize the shunt of the ink box to a plurality of spray heads, so that a plurality of independent pipelines are not required to be arranged, the structure is simplified, and the integral layout is convenient. Meanwhile, the ink box is communicated with the plurality of spray heads through the flow dividing pipes, the flow dividing pipes are communicated with each other, and the flow of each spray head is more uniform.

Description

3D beats printer head system and 3D printer

Technical Field

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

Background

The 3D printing technology is similar to the conventional inkjet printing technology, in which a print head is one of the most critical components of a printer, and the print head directly affects the printing efficiency, printing quality, and the like of a product. The nozzle of the 3D printing head system is communicated with the ink box to jet ink. In the field of 3D printing, the liquid material provided by the print head is referred to as ink. In the case of having a plurality of heads, the piping through which each head communicates with the ink cartridge is complicated, is not favorable for layout, and is easily damaged. In addition, the connection between the driving board card for driving the nozzle to move and the nozzle is easy to loose in the using process, and further the ink jet effect of the nozzle is influenced.

Disclosure of Invention

In view of the above, a first object of the present invention is to provide a 3D print head system, the structural design of which can effectively solve the problems that independent pipelines for communicating a nozzle and an ink cartridge are complicated and disadvantageous in layout, and a second object of the present invention is to provide a 3D printer including the above 3D print head system.

In order to achieve the first object, the invention provides the following technical scheme:

A3D printing head system comprises a mounting frame, an ink supply assembly and an ink jet assembly;

the mounting frame is used for mounting the ink supply assembly and the ink jet assembly;

the ink supply assembly comprises an ink box and a shunt pipe which are communicated with each other, and the ink box is arranged on the mounting frame;

the inkjet subassembly includes shower nozzle and drive integrated circuit board, the shower nozzle with the shunt tubes intercommunication, the drive integrated circuit board connect in on the shower nozzle, be used for control the shower nozzle inkjet.

Preferably, in the 3D printhead system, the ink cartridge has a plurality of ink supply tubes, one end of each ink supply tube of the ink cartridge is connected to the ink outlet connector of the ink cartridge, the other end of each ink supply tube of the ink cartridge is connected to the ink supply connector of the shunt tube, the shunt tube has a plurality of ink outlet connectors, and every two ink outlet connectors of the shunt tube are correspondingly connected to two ink supply connectors of one of the nozzles respectively.

Preferably, in the 3D print head system, the inkjet assembly includes a printing bottom plate connected to the mounting frame, the nozzle is installed on the printing bottom plate, the shunt tubes include a main tube and a plurality of parallel branch tubes connected to the main tube, the main tube is provided with the ink supply connector, two ink discharge connectors are respectively provided on each of the branch tubes, and each of the branch tubes is connected to the mounting frame, is located above the printing bottom plate, and is parallel to the printing bottom plate.

Preferably, the 3D print head system further comprises a cleaning assembly, wherein the cleaning assembly comprises a cleaning pool and a scrubbing piece, the cleaning pool is used for placing cleaning liquid, and the scrubbing piece is movably mounted on the cleaning pool and used for scrubbing the spray head.

Preferably, in the above-mentioned 3D printing head system, the scrubbing member includes a roller and a roller driving member, the roller is rotatably installed in the cleaning tank, and a sponge layer is provided at an outer edge of the roller, and the roller driving member is drivingly connected to the roller.

Preferably, in the above-mentioned 3D printing head system, the scrubbing member further includes a jacking member and a bracket, the jacking member is disposed at the bottom of the cleaning pool, the bracket is fixedly connected to an output end of the jacking member, and the roller is rotatably connected to the bracket.

Preferably, in the 3D printing head system, a cleaning brush for cleaning the sponge layer is mounted on an inner wall of the cleaning pool.

Preferably, in the 3D printing head system, a scraper for extruding the sponge layer is further disposed on an inner wall of the cleaning pool.

Preferably, in the 3D print head system, a liquid level sensor is further disposed in the cleaning pool.

Preferably, in the 3D print head system, the ink cartridge is mounted in the mounting frame and disposed close to the ejection head.

Preferably, in the 3D print head system, the mounting frame includes a protective cover disposed around the inkjet assembly.

Preferably, among the above-mentioned 3D printer head system, the installation frame includes mounting panel, regulating plate and support frame, the mounting panel is used for connecting the drive module, the support frame with the regulating plate is connected, is used for the installation ink supply assembly with the inkjet subassembly

The 3D printing head system provided by the invention comprises a mounting frame, an ink supply assembly and an ink jet assembly. The mounting frame is used for mounting the ink supply assembly and the ink jet assembly; the ink supply assembly comprises an ink box and a shunt pipe which are communicated with each other, and the ink box is arranged on the mounting frame; the ink jet assembly comprises a nozzle and a driving board card, the nozzle is communicated with the flow dividing pipe, and the driving board card is connected to the nozzle and used for controlling the nozzle to jet ink.

According to the 3D printing head system provided by the invention, the ink supply assembly and the ink jet assembly are arranged on the installation frame, the ink box of the ink supply assembly is communicated with the nozzle of the ink jet assembly through the shunt pipe, and the nozzle performs ink jet under the control of the driving board card. Because the ink horn passes through the shunt tubes and the shower nozzle intercommunication, so under the condition that has a plurality of shower nozzles, the shunt tubes can realize the reposition of redundant personnel of ink horn to a plurality of shower nozzles, therefore need not to set up a plurality of independent pipelines, has simplified the structure, the overall arrangement of being convenient for. Simultaneously, through shunt tubes intercommunication ink horn and a plurality of shower nozzle, the shunt tubes is inside all to be communicate, and difficult emergence is blockked up, has improved the stability of shower nozzle work, and the flow of each shower nozzle is more even.

The invention also provides the following technical scheme:

the ink supply assembly comprises an ink box, and the ink box is arranged on the mounting frame;

the ink jet assembly comprises a nozzle and a driving board card, the nozzle is arranged on the mounting frame and communicated with the ink box, and the driving board card is inserted into the nozzle and used for controlling the nozzle to jet ink.

The 3D printing head is applied, the nozzle is connected with the driving board card in a plugging mode, line connection can be reduced, fault points are reduced, installation space is saved, and maintenance is convenient.

In order to achieve the second object, the invention further provides a 3D printer, wherein the 3D printer comprises any one of the 3D printing head systems. Since the 3D printing head system has the technical effects, the 3D printer having the 3D printing head system should also have corresponding technical effects.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic block diagram of a 3D printhead system according to one embodiment of the present invention;

FIG. 2 is a partial schematic view of FIG. 1;

FIG. 3 is a schematic diagram of an ink jet module;

FIG. 4 is a schematic view of another construction of an ink jet module;

FIG. 5 is a schematic view of a cleaning assembly;

fig. 6 is a schematic cross-sectional structure of fig. 5.

The drawings are numbered as follows:

1. the ink jet printer comprises a drag chain, an ink box, an installation frame, a printing bottom plate, a shunt tube, a driving plate card, an ink supply joint, an installation plate, a parallelism adjusting block, a perpendicularity adjusting block, a micro-distance sensor, an ink outlet joint, a driving module, a regulating plate, a nozzle and a module, wherein the drag chain comprises 2 parts of the ink box, 3 parts of the installation frame, 4 parts of the printing bottom plate, 5 parts of the shunt tube, 6 parts of the driving plate card, 7 parts;

cleaning pool 100, roller 200, sponge layer 300, roller driving piece 400, scraper 500, cleaning brush 600, jacking piece 700, level sensor 800 and bracket 900.

Detailed Description

The embodiment of the invention discloses a 3D printing head system, which is used for simplifying a connection structure of an ink box and a spray head and is convenient for overall layout.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, fig. 1 is a schematic structural diagram of a 3D printhead system according to an embodiment of the invention; fig. 2 is a partial schematic view of fig. 1.

In one particular embodiment, the present invention provides a 3D printhead system including a mounting frame, an ink supply assembly, and an inkjet assembly.

Wherein the mounting frame 3 is used for mounting the ink supply assembly and the ink jet assembly. The specific structure of the mounting frame 3 may be set as required, and is not particularly limited herein, so as to mount the ink supply module and the ink jet module.

The ink supply assembly comprises an ink box 2 and a shunt pipe 5 which are communicated with each other, and the ink box 2 is arranged on the mounting frame 3. That is, the mounting frame 3 supports the ink cartridge 2, and the ink cartridge 2 may be installed inside the mounting frame 3 or outside the mounting frame 3 according to actual needs. The shunt tube 5 communicates with the ink cartridge 2 for inking.

The ink jet assembly comprises a spray head 15 and a driving board card 6, the spray head 15 is communicated with the shunt pipe 5, and the driving board card 6 is connected onto the spray head 15 and used for controlling the spray head 15 to spray ink. The driving board 6 is connected to the nozzle 15 for controlling the nozzle 15 to jet ink, and for the specific structure and the working principle, reference is made to the corresponding arrangement of the existing driving board 6, which is not described herein again. The spray heads 15 are communicated with the shunt pipes 5, namely the ink box 2 is communicated with the spray heads 15 through the shunt pipes 5, the shunt pipes 5 are arranged, the communication between the ink box 2 and the plurality of spray heads 15 can be realized, and the communication between the spray heads 15 is also realized due to the arrangement of the shunt pipes 5. The specific ink jet module includes a printing substrate 4 connected to the mounting frame 3, the printing substrate 4 is used for mounting the nozzles 15, and the specific structure thereof is not specifically limited herein, and reference may be made to the conventional nozzle 15 mounting structure. The printing substrate 4 is connected to the mounting frame 3, thereby mounting the heads 15 on the mounting frame 3. The printing bottom plate 4 and the mounting frame 3 can be an integrated structure or a connected split structure.

By applying the 3D printing head system provided by the invention, the ink supply assembly and the ink jet assembly are arranged on the installation frame 3, the ink box 2 of the ink supply assembly is communicated with the nozzle 15 of the ink jet assembly through the shunt pipe 5, and the nozzle 15 jets ink under the control of the driving board card 6. Because the ink box 2 is communicated with the spray heads 15 through the shunt pipes 5, under the condition that a plurality of spray heads 15 are arranged, the shunt pipes 5 can realize the shunt of the ink box 2 to the plurality of spray heads 15, so that a plurality of independent pipelines are not required to be arranged, the structure is simplified, and the integral layout is convenient. Meanwhile, the ink box 2 and the plurality of spray heads 15 are communicated through the shunt tubes 5, the shunt tubes 5 are communicated inside, so that blockage is not easy to occur, the working stability of the spray heads 15 is improved, and the flow of each spray head 15 is more uniform.

In one embodiment, the printing substrate 4 is provided with a plurality of nozzles 15, each of the nozzles 15 has a plurality of nozzles, and the driving board 6 controls each of the nozzles to eject ink according to an electrical signal of data of a printed image. Here, the plurality of heads 15 means two or more. Each nozzle 15 is connected with the driving board card 6, each driving board card 6 is connected through a communication cable, and each nozzle is controlled by the driving board card 6 to drive the nozzle to jet ink. The number of the nozzles 15 may be 1 or more, when only 1 nozzle 15 is provided, the nozzle 15 is correspondingly provided with 1 driving board card 6, and when a plurality of nozzles 15 are provided, each nozzle 15 may be respectively corresponding to one driving board card 6, as shown in fig. 3, and fig. 3 is a schematic structural diagram of the inkjet assembly. Or N nozzles 15 may be integrated into one module 16, and each module 16 corresponds to one driving board card 6, where N is a positive integer greater than or equal to 2. Specifically, referring to fig. 4, fig. 4 is another schematic structural diagram of the inkjet assembly. The plurality of nozzles 15 are integrated into a plurality of modules 16, and each module 16 is correspondingly connected with a driving board card 6. That is, the N nozzles 15 are integrated into the module 16, and then the module 16 is mounted on the printing substrate 4. Preferably, three nozzles 15 can be provided to form a module 16, each module 16 corresponding to one drive plate 6. By modularly installing the nozzle 15, the control of the installation precision of the nozzle 15 and the guarantee of the processing precision of the printing head bottom plate are facilitated.

In one embodiment, the ink box 2 has a plurality of ink supply tubes, one end of each ink supply tube of the ink box 2 is connected with the ink outlet joint 12 of the ink box 2, the other end is connected with the ink supply joint of the shunt tube 5, the shunt tube 5 has a plurality of ink outlet joints 7, and every two ink outlet joints 7 of the shunt tube 5 are correspondingly connected with two ink supply joints of one spray head 15 respectively. For example, an ink box 2 is respectively arranged at the left end and the right end of the mounting frame 3, the shunt tube 5 is provided with an ink supply connector and a plurality of ink outlet connectors 7, the ink supply connector of the shunt tube 5 is connected with the ink outlet connector 12 of the ink box 2, and every two ink outlet connectors 7 of the shunt tube 5 correspond to two ink supply connectors of one spray head 15 so as to supply ink for the corresponding spray head 15.

The ink cartridge 2 may be mounted outside the mounting frame 3, and ink may be supplied to the ink chambers of the respective heads 15 in the mounting frame 3 through the ink supply tube and the bypass tube 5. The ink cartridge 2 may be installed in the mounting frame 3 as needed, and preferably, the ink cartridge 2 is installed in the mounting frame 3 and disposed adjacent to the head 15. If the ink cartridge 2 is mounted above the head 15, ink can vertically enter the ink chamber of the head 15. The plurality of heads 15 share one ink cartridge 2, so that ink supply from the heads 15 and stabilization of negative pressure in the ink cartridge 2 are facilitated.

Specifically, shunt tubes 5 are provided with the ink supply joint including being responsible for and being responsible for a plurality of parallel arrangement's of being connected branch pipe, being responsible for, are provided with two on each branch pipe and go out the black joint respectively, and each branch pipe is connected with installation frame 3, and is located printing bottom plate 4 top and parallel with printing bottom plate 4. The liquid material of the ink box 2 enters the corresponding spray heads 15 through the main pipe and the shunting action of the branch pipes, and the branch pipes are all parallel to the printing bottom plate 4 so as to supply ink to the spray heads 15 on the printing bottom plate 4. Specifically, both ends of each branch pipe are fixedly connected with a connecting bracket respectively, and the connecting bracket is fixedly connected with the mounting frame 3, such as a screw connection. The connecting support can be an L-shaped plate, one side of the L-shaped plate is fixedly connected with the branch pipe, and the other end of the L-shaped plate is fixedly connected with the mounting frame 3.

In the above embodiments, the cleaning assembly is further included, and the cleaning assembly includes a cleaning tank 100 and a scrubbing element, the cleaning tank 100 is used for placing the cleaning liquid, and the scrubbing element is movably installed on the cleaning tank 100 and used for scrubbing the spray head 15. During printing, the nozzle plate part of the nozzle 15 will be contaminated with a lot of fine dust and resin droplets, which affects the ink-jet effect. Therefore, through the arrangement of the cleaning assembly, cleaning liquid is placed in the cleaning pool 100, the scrubbing piece is arranged in the cleaning pool 100, and the spray head 15 is effectively cleaned through the scrubbing piece, so that the ink jet quality is ensured. The soiled scrubbing element may be cleaned with cleaning fluid and the spray head 15 may be cleaned again. The specific shape of the cleaning tank 100 is not limited herein, and may be set as needed.

Specifically, referring to fig. 5, fig. 5 is a schematic structural diagram of a cleaning assembly, and fig. 6 is a schematic cross-sectional structural diagram of fig. 5. The scrubbing piece comprises a roller 200 and a roller driving piece 400, the roller 200 is rotatably installed in the cleaning pool 100, a sponge layer 300 is arranged at the outer edge of the roller 200, and the roller driving piece 400 is in driving connection with the roller 200. That is, the roller 200 is rotatably installed in the cleaning tank 100, and the roller 200 is rotated by the roller driving member 400. The roller driving member 400 may be a driving device such as a motor capable of outputting torque. The output shaft of the motor is coaxially connected with the shaft of the roller 200 to drive the roller 200 to rotate. The outer edge of the roller 200 is provided with a sponge layer 300, and preferably, the outer peripheral surface of the roller 200 is wrapped with a circle of sponge layer 300, so that the roller 200 rotates and the printhead moves at the same time, and the printhead 15 is cleaned through the sponge layer 300. Due to the fact that the sponge layer 300 is soft, in the nozzle cleaning process, liquid drops such as dust particles and resin on the nozzle plate portion can be effectively cleaned, the nozzle plate cannot be damaged, and the nozzle plate cannot be scraped off due to overlarge acting force applied to the nozzle plate. According to the requirement, the sponge layer 300 can be replaced by a wiper plate, namely the wiper plate is fixedly connected to the roller 200, and the nozzle 15 is cleaned by the wiper plate along with the rotation of the roller 200. The wiper blade is hard in material, not easy to wear and long in service life. The scrubbing element can also adopt a structure such as a linear motion type scrubbing cloth and the like according to requirements.

Further, the scrubbing element further comprises a jacking element 700 and a bracket 900, the jacking element 700 is arranged at the bottom of the cleaning pool 100, the bracket 900 is fixedly connected to the output end of the jacking element 700, and the roller 200 is rotatably connected with the bracket 900. That is, the rotation installation of the roller 200 is realized through the bracket 900, and the output end of the jacking piece 700 is fixedly connected with the bracket 900, so that the bracket 900 is driven to move up and down, and the cleaning requirements of different heights are met. The specific structure of the bracket 900 can be configured as desired, such as by including a transverse support member to which the roller 200 is rotatably coupled. Longitudinal guides are respectively provided at both ends of the lateral support member so that the lateral support member is moved up and down along the longitudinal guides by the jacking member 700. The longitudinal guide part can be a longitudinal guide rail arranged along the up-down direction, and two ends of the transverse support part are provided with sliding blocks in sliding fit with the longitudinal guide rail. Specifically, the mounting shaft of the roller 200 extends out of the sponge layer 300 and is rotatably connected to the bracket 900. The jacking member 700 may be a jacking cylinder fixed to the bottom of the cleaning tank 100, or may be a bottom surface of the cleaning tank 100, and the telescopic rod thereof is fixed to the bracket 900. Other driving means such as a hydraulic cylinder may be used for the jack 700 as required.

According to the requirement, in another embodiment, the cleaning assembly further comprises an integral jacking mechanism, which comprises a supporting seat and an integral jacking assembly, wherein the supporting seat is arranged on the edge of the cleaning pool 100, and the integral jacking assembly is arranged on the supporting seat and used for lifting or lowering the cleaning assembly integrally. The concrete integral jacking assembly can be a telescopic driving piece such as a cylinder, and one end of the telescopic driving piece is fixedly installed to provide supporting force. The other end is fixedly connected with the supporting seat to drive the supporting seat to ascend or descend, and then the cleaning assembly fixedly connected with the supporting seat is driven to ascend or descend integrally, so that the printing head and the cleaning assembly are more favorably abraded in cleaning.

Further, a cleaning brush 600 for cleaning the sponge layer 300 is installed on the inner wall of the cleaning bath 100. Through the setting of cleaning brush 600, can clear up sponge layer 300. The cleaning brush 600 is installed in such a position that the head of the cleaning brush 600 is in contact with the sponge layer 300 to clean it. If the cleaning brush 600 is horizontally disposed, the tail end thereof, i.e., the brush handle, is fixedly connected to the side wall of the cleaning tank 100, and the head thereof, i.e., the brush portion, is in contact with the sponge layer 300. The bristles of the cleaning brush 600 may be soft bristles such as silica gel and plastic.

A scraper 500 for pressing the sponge layer 300 is further provided on the inner wall of the washing tub 100 as needed. The cleaning liquid absorbed by the sponge layer 300 is squeezed by the scraper 500, and the head of the scraper 500 is pressed against the sponge layer 300 to apply pressure to the sponge layer 300 and squeeze the same to better absorb the droplets of the dust particles, the resin, and the like on the surface of the nozzle 15.

Specifically, the scraper 500 is located above the cleaning brush 600, and the liquid level of the cleaning liquid is located between the scraper 500 and the cleaning brush 600. Then, along with the rotation of the roller 200, the sponge layer 300 is washed by the cleaning liquid in the cleaning liquid, and the sponge layer 300 is washed by the cleaning brush 600, so that the washed sponge layer 300 rotates to the position of the scraper 500, and the cleaning liquid absorbed by the sponge layer is squeezed out under the pressurizing action of the scraper 500, and then the sponge layer rotates along with the cleaning liquid to contact with the spray head 15, so as to clean the spray head 15.

Through the setting of clearance brush 600 and scraper 500, can be convenient wash and scrape dry sponge layer 300 to better wash shower nozzle 15. If necessary, the sponge layer 300 may be replaced with a new one after the sponge layer 300 is used for a certain period of time, and the cleaning brush 600 and the scraper 500 are not required to be provided.

The scrubbing member is not limited to the roller 200 mechanism described above, and in another embodiment, the scrubbing member includes a cleaning mounting plate rotatably installed in the cleaning tank 100, a driving member connected to the cleaning mounting plate to drive the cleaning mounting plate to rotate, and a cleaning block disposed on a surface of the cleaning mounting plate, as needed. The cleaning mounting plate is driven by the driving member to rotate the cleaning block so as to scrub the nozzle 15. The rotation angle of the specific cleaning block can be set according to the scrubbing requirement and the size of the cleaning block. The cleaning block wipes the spray head 15 when rotated into contact with the spray head 15 and cleans accordingly when rotated into immersion in the cleaning fluid. Further, the cleaning block is arranged on the cleaning installation plate through a pressing plate. If the pressing plates are respectively arranged at the two opposite ends of the cleaning block, the pressing plates are fixedly connected with the cleaning installation plate and press the two ends of the cleaning block between the two ends, so that the cleaning block is fixed. The cleaning block can be sponge or flexible material such as rubber.

In another embodiment, a spraying mechanism is further disposed in the cleaning tank 100, and the spraying mechanism includes a connecting pipe and a plurality of sprayers, the connecting pipe is disposed at a side of the cleaning mounting plate, and each sprayer is disposed on the connecting pipe in a spaced and communicated manner. That is, set up the connecting pipe in the side of wasing the mounting panel, with being provided with a plurality of atomizers of connecting pipe intercommunication, a plurality of atomizers interval sets up, preferred even interval sets up. The cleaning block is sprayed by a sprayer to clean the cleaning block and better perform scrubbing by the spray head 15. If necessary, the spray mechanism may be provided at another position in the cleaning tank 100, and the nozzle of the sprayer may be directed to the cleaning block. In the case where the scrubbing element comprises a roller 200, then the spray mechanism may be attached to the cleaning bath 100 with the spray nozzles of the sprayers directed toward the roller 200.

In another embodiment, the bottom of the washing tank 100 is provided with a waste liquid box. Specifically, a valve is disposed at the bottom of the cleaning tank 100, and the valve is closed during cleaning. When the cleaning liquid needs to be replaced, the valve is opened, and the waste liquid cleaned in the cleaning tank 100 flows into the waste liquid box to be collected, so that the cleaning liquid in the cleaning tank 100 is kept clean. The waste liquid in the waste liquid box can be recycled through subsequent purification treatment and the like. The cleaning tank 100 and the waste liquid box may be connected by a pipeline as required, and the valve may be specifically disposed in the pipeline.

In order to facilitate the liquid level control of the cleaning liquid in the cleaning tank 100, a liquid level sensor 800 is further provided in the cleaning tank 100. The amount of the cleaning liquid is controlled according to the feedback of the liquid level sensor 800, and the accurate control of the liquid level can be realized. For the structure and the operation principle of the liquid level sensor 800, reference is made to the prior art, and the detailed description thereof is omitted here.

In one embodiment, the mounting frame 3 comprises a protective cover arranged around the inkjet assembly. The safety cover sets up around the inkjet subassembly, that is all have protection architecture around the inkjet subassembly, plays the guard action to the inkjet subassembly through the safety cover. The structure of the specific protective cover can be set according to the needs, and is not particularly limited here. When the ink box 2 is arranged in the mounting frame 3, the ink box is accommodated in the protective cover, and the length of the liquid conveying line is reduced when the ink box 2 is arranged close to the spray head 15, so that efficient ink jet is facilitated; when the ink box 2 is installed outside the installation frame 3, namely the ink box 2 is arranged outside the protection cover, the ink box 2 can be specifically arranged on the adjusting plate 14, and the external arrangement mode is favorable for heat dissipation of the ink box 2 and is more favorable for ensuring the ink supply quality. It should be noted that, the 3D printing head system selects an appropriate 3D printer model as needed, and selects a 3D printing head system that is applicable to the two structures.

In the above embodiments, the mounting frame 3 includes the mounting plate 8, the adjusting plate 14, and the support frame, the mounting plate 8 is used for connecting the driving module 13, and the support frame is connected with the adjusting plate 14 for mounting the ink supply assembly and the ink jet assembly. The support frame is a main body frame structure and is used for installing the ink supply assembly and the ink jet assembly. The mounting plate 8 is connected to the support frame, and specifically can be connected to the top end of the support frame to connect the driving module 13, and the driving module 13 controls and drives the movement of the whole structure of the printing head. The adjusting plate 14 specifically includes a rectangular plate, and may further include other structures matched with the rectangular plate as required, and is mainly used for adjusting the horizontal straightness of the printing bottom plate 4 from the printing working surface. Specifically, a parallelism adjusting block 9 and a perpendicularity adjusting block 10 are mounted on two sides of an adjusting plate 14, the parallelism adjusting blocks 9 are mounted on two sides of the adjusting plate 14, and when the printing head is integrally mounted and is not parallel to the printing head stepping direction module 16, the parallelism adjusting blocks 9 on the two sides can be tensioned or loosened to enable the printing head to be parallel to the stepping direction module 16; when the printing bottom plate 4 is not parallel to the sand surface, i.e. the printing head is not perpendicular to the sand surface, the perpendicularity adjusting block 10 mounted on the adjusting plate 14 can be adjusted to adjust the perpendicularity.

The mounting frame 3 in the above embodiment includes the mounting plate 8, the adjusting plate 14 and the support frame, and for more convenient adjustment of the height and the straightness of the printing head, the present application also provides a mounting frame 3 structure different from the above structure. In this embodiment, the mounting frame 3 includes a connecting plate, a three-point adjusting plate and a cover plate, the connecting plate is used for connecting the driving module 13 and driving the 3D printing head system to move, the three-point adjusting plate is disposed on the connecting plate, and the cover plate is movably mounted on the three-point adjusting plate; the ink box 2 is arranged on the three-point adjusting plate, and the shunt pipe 5 is arranged on the cover plate; the ink jet assembly further comprises a printing bottom plate 4, the printing bottom plate 4 is connected with the cover plate, and the spray head 15 is installed on the printing bottom plate 4.

According to the 3D printing head system, the ink box 2 is externally arranged on the three-point adjusting plate, so that the problem that the ink-jetting quality is reduced due to the fact that the ink box 2 is heated due to the fact that the driving board card 6 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 2 is externally arranged, so that the ink box 2 can be simply and effectively cooled by natural wind in the printing process; and 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.

Specifically, the ink box 2 is mounted on a three-point adjusting plate, and the shunt pipe 5 is arranged on the cover plate. Like this, through installing ink horn 2 on three point adjustment board, realize the external effect of ink horn 2 to can avoid ink horn 2 to set up and heat ink horn 2 because drive integrated circuit board 6 generates heat when printing mechanism is inside, thereby change the temperature of ink, cause the ink viscosity to change then and influence the inkjet quality.

According to the 3D printing head system, the ink box 2 is mounted on the three-point adjusting plate, so that the external effect of the ink box 2 is achieved, and the problem that the ink-jet quality is reduced due to the fact that the ink box 2 is heated due to the fact that the driving board card 6 generates heat is effectively solved, and therefore the ink temperature is changed and ink viscosity changes are caused; meanwhile, the ink box 2 is externally arranged, so that the ink box 2 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; further, through setting up shunt tubes 5 on the apron to effectively replace a plurality of feed liquor pipes of being connected between 2 and the shower nozzle 15 of ink horn, greatly simplified the installation complexity of printing mechanism, be favorable to reducing installation and maintenance cost.

On the basis of the above embodiments, the 3D printing head system further comprises an air source device cooperating with the ink supply assembly. The ink box 2 of the ink supply assembly is provided with at least two air inlets, the air source device comprises a first negative pressure generator and a second negative pressure generator, and an air outlet of the first negative pressure generator and an air outlet of the second negative pressure generator are respectively connected with the at least two air inlets of the ink box 2 and used for introducing negative pressure with different pressures into the ink box 2. Through the setting of first negative pressure generator and second negative pressure generator to add the negative pressure simultaneously to two air inlets of ink horn 2, adjust the negative pressure value of two air inlets this moment, make it produce the pressure differential, the china ink alright circulation in the ink horn 2 flows, the pile up of having avoided small impurity and the printer head 15 that beats that from this causes blocks up, and avoided china ink because long-time static and gassing, the inkjet precision has been improved, when reducing the rejection rate, and the cost is saved, the guarantee quality guarantor volume.

In one embodiment, the ink supply assembly further comprises a negative pressure cartridge connected to the ink cartridge, the ink cartridge having an ink supply chamber and an ink return chamber, the negative pressure cartridge having an ink supply negative pressure chamber and an ink return negative pressure chamber, the ink supply chamber being in communication with the ink supply negative pressure chamber, the ink return chamber being in communication with the ink return negative pressure chamber. The ink supply cavity is used for supplying liquid materials to the spray head, and the ink return cavity is used for collecting the liquid materials from the spray head, so that the uninterrupted circulating flow of the liquid materials in the spray head is realized. From another perspective, the liquid material is divided into two parts in the spray head, one part is used for spraying, and the other part is used for backflow, so that the circular flow of the liquid material in the spray head is realized, and the liquid material is prevented from being blocked in the spray head due to the static liquid material. And two independent negative pressures are arranged in the spray head, so that the spraying and the circulation of the liquid material in the spray head are relatively independent, the circulation of the liquid material is realized under the condition that the normal work of the spray head is not influenced, and the problem that the static liquid material easily blocks the spray head is avoided.

The invention also provides a 3D printing head, which comprises a mounting frame, an ink supply assembly and an ink jet assembly; the ink supply assembly comprises an ink box, and the ink box is arranged on the mounting frame; the ink jet component comprises a nozzle and a drive board card which are arranged on the installation frame, the nozzle is communicated with the ink box, and the drive board card is inserted in the nozzle and used for controlling the nozzle to jet ink.

That is, in this embodiment, unlike the above embodiments, the communication between the head and the ink cartridge may be directly performed between the head and the ink cartridge without a flow dividing function of the flow dividing pipe, for example, each head may be directly connected to the ink cartridge through a separate connection pipe, or each head may be directly connected to the ink cartridge through a joint. For other structures of the mounting frame, the ink supply assembly and the ink jet assembly, reference may be made to the related arrangements in the above embodiments, and details are not repeated here. In this embodiment, the driver board card is inserted into the nozzle. And the insertion mode is adopted, so that the installation of the board card and the spray head is convenient to drive, and the maintenance is convenient. Specifically, the drive board card is inserted on the spray head and realizes signal connection through insertion, and then the spray head and the drive board card do not need to be separately provided with circuit connection, so that the circuit connection is reduced, the occurrence of fault points is reduced, and the installation space is saved.

Based on the 3D printing head system provided in the above embodiment, the invention also provides a 3D printer, and the 3D printer includes any one of the 3D printing head systems in the above embodiments. Since the 3D printer employs the 3D print head system in the above embodiment, please refer to the above embodiment for the beneficial effects of the 3D printer.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A3D printing head system is characterized by comprising a mounting frame, an ink supply assembly and an ink jet assembly;

2. The 3D printhead system according to claim 1, wherein said ink container has a plurality of ink supply tubes, each of said ink supply tubes has one end connected to an ink outlet of said ink container and the other end connected to an ink supply connector of said manifold, said manifold has a plurality of ink outlet connectors, and each two of said ink outlet connectors of said manifold are respectively connected to two ink supply connectors of one of said nozzles.

3. The 3D printhead system according to claim 2, wherein the inkjet assembly includes a printing substrate connected to a mounting frame, the nozzles are mounted on the printing substrate, the manifold includes a main pipe and a plurality of parallel branch pipes connected to the main pipe, the main pipe is provided with the ink supply connector, two ink discharge connectors are respectively provided on each of the branch pipes, and each of the branch pipes is connected to the mounting frame and is located above the printing substrate and parallel to the printing substrate.

4. The 3D printhead system of any of claims 1-3, further comprising a cleaning assembly, the cleaning assembly comprising a cleaning basin for holding a cleaning fluid and a scrubbing element movably mounted to the cleaning basin for scrubbing the nozzles.

5. The 3D printhead system of claim 4, wherein the scrubbing element comprises a roller rotatably mounted in the cleaning bath and a roller driving element having a sponge layer disposed on an outer edge of the roller, the roller driving element drivingly coupled to the roller.

6. The 3D print head system of claim 5, wherein the wiper further comprises a lift-up piece and a bracket, the lift-up piece is disposed at the bottom of the cleaning tank, the bracket is fixedly connected to an output end of the lift-up piece, and the roller is rotatably connected to the bracket.

7. The 3D print head system of claim 4, wherein a cleaning brush for cleaning the sponge layer is mounted on an inner wall of the cleaning tank.

8. The 3D print head system according to claim 4, wherein a scraper for pressing the sponge layer is further provided on an inner wall of the cleaning tank.

9. The 3D printhead system of claim 4, wherein a liquid level sensor is further disposed within the purge pool.

10. The 3D printhead system of claim 1, wherein the ink cartridge is mounted within the mounting frame and disposed proximate to the ejection head.

11. The 3D printhead system of claim 1, wherein the mounting frame includes a protective cover disposed around the inkjet assembly.

12. The 3D printhead system of claim 1, wherein the mounting frame includes a mounting plate for connecting a drive module, a regulating plate, and a support frame connected with the regulating plate for mounting the ink supply assembly and the ink ejection assembly.

13. A3D printing head system is characterized by comprising a mounting frame, an ink supply assembly and an ink jet assembly;

14. A 3D printer comprising a 3D print head system according to any of claims 1 to 13.