CN114734639B

CN114734639B - Shovel mechanism, 3D printer and 3D printing method

Info

Publication number: CN114734639B
Application number: CN202210450165.3A
Authority: CN
Inventors: 刘军华; 周佳婧; 刘青山; 苏树添
Original assignee: Guangzhou Heygears IMC Inc
Current assignee: Guangzhou Heygears IMC Inc
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2023-10-24
Anticipated expiration: 2042-04-26
Also published as: CN114734639A

Abstract

The application provides a shovel mechanism, a 3D printer and a 3D printing method, and relates to the technical field of printing. The shovel part mechanism is applied to a 3D printer, the 3D printer comprises a forming platform, the forming platform is provided with a forming surface, the shovel part mechanism comprises a shovel part assembly and a receiving part assembly, the shovel part assembly comprises a shovel blade and a shovel part driving assembly, and the shovel blade is used for stripping a printing part from the forming surface; the shovel piece driving assembly is used for driving at least one of the shovel blade and the forming platform so that the shovel blade and the forming platform relatively move to peel the printing piece from the forming surface through the shovel blade; the receiving member assembly comprises a receiving member and a receiving member driving assembly, wherein the receiving member is provided with a receiving position and is used for receiving the printing member peeled from the molding surface at the receiving position; the connector driving assembly is used for driving the connector to move to the material receiving position. The shovel mechanism can realize that the printer can work when no person conservation, reduces the labor cost and improves the printing efficiency.

Description

Shovel mechanism, 3D printer and 3D printing method

Technical Field

The application relates to the technical field of 3D printing, in particular to a shovel mechanism, a 3D printer and a 3D printing method.

Background

After 3D printing is completed, i.e., the printing material is cured on the build platform to form a print, the solid three-dimensional print is held on the build platform and uncured printing material adheres to the cured print. In the existing 3D printing process, a manual shovel mode is mostly adopted to separate a printing piece from a forming platform. When removing the printed matter from the forming table, there is a risk that the operator is contaminated by uncured printing material adhering to the printed matter, or that the apparatus is contaminated when the operator removes the printed matter. In addition, after one-time printing is completed, the machine needs to be suspended to wait for manual use to peel off the printed piece by using the flat spade, and the mode is low in efficiency, consistency cannot be ensured, and the quality of the printed piece is unstable.

Disclosure of Invention

The application aims to provide a shovel mechanism, a 3D printer and a 3D printing method, which can realize that the printer can automatically remove manufactured three-dimensional printed parts in a standardized manner, so that the printing operation efficiency is higher, and the quality of the printed parts is more stable.

Embodiments of the application may be implemented as follows:

in a first aspect, the application provides a scoop mechanism for use in a 3D printer, the 3D printer comprising a forming platform having a forming surface for attaching a print, the scoop mechanism comprising a scoop assembly and a receiver assembly, the scoop assembly comprising a blade and a scoop drive assembly, the blade being adapted to peel the print from the forming surface; the shovel piece driving assembly is used for driving at least one of the shovel blade and the forming platform so that the shovel blade and the forming platform relatively move to peel the printing piece from the forming surface through the shovel blade; the receiving member assembly comprises a receiving member and a receiving member driving assembly, wherein the receiving member is provided with a receiving position and is used for receiving the printing member peeled from the molding surface at the receiving position; the connector driving assembly is used for driving the connector to move to the material receiving position.

In a second aspect, the present application provides a 3D printer, including the shovel mechanism of the second aspect, where the 3D printer further includes a tray and a forming platform, the tray is used for containing printing materials, the forming platform has a forming surface and is used for adhering the printing materials to the forming surface layer by layer to obtain a printed piece, and the shovel mechanism is located between the tray and the forming platform.

In a third aspect, the present application provides a 3D printing method applied to a 3D printer, the 3D printer including a molding platform, a receiving member, and a blade, the molding platform having a molding surface for attaching a printing member, the receiving member having a receiving position, the 3D printing method comprising: controlling the receiving piece to move to the receiving position; controlling the scraper knife to slide on the molding surface so as to peel the printing piece from the molding surface to the bearing piece; the carriage with the print member is controlled to move away from the carriage level.

The beneficial effects of the embodiment of the application include:

the application provides a shovel mechanism which comprises a shovel component and a connector component, wherein the shovel component is used for peeling a printing piece from a molding surface, and the connector component is used for receiving the printing piece at a receiving position and sending the printing piece out from the receiving position. The 3D printer provided by the application comprises a forming platform, a material tray and the shovel mechanism. The 3D printer provided by the application can realize the 3D printing method, so that the 3D printer also has the advantages of high working efficiency, reduced pollution of printing materials to human bodies or equipment, capability of realizing unattended operation of printing operation and the like.

The 3D printing method comprises the steps of controlling the receiving piece to move to the receiving position, controlling the shovel blade to slide on the molding surface so as to strip the printing piece from the molding surface to the receiving piece, and controlling the receiving piece receiving the printing piece to move away from the receiving position. The 3D printing method can automatically realize the operation of stripping the printed piece from the forming platform, and improves the printing efficiency. The method can avoid the pollution of human bodies or equipment caused by manually carrying out the shoveling, and simultaneously, the whole flow of shoveling, receiving and delivering the printing pieces in the 3D printing method is realized through automation, so that the printer can work when no person is on duty, and the labor cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an overall schematic of a 3D printer according to an embodiment of the present application;

FIG. 2 is a schematic diagram illustrating the cooperation between a forming platform and a shovel mechanism according to an embodiment of the present application;

FIG. 3 is a first schematic view of a shovel mechanism according to one embodiment of the present application;

FIG. 4 is a second schematic view of a shovel mechanism according to one embodiment of the present application;

FIG. 5 is a schematic illustration of an assembly of a blade assembly and a drive block in accordance with one embodiment of the present application;

FIG. 6 is a schematic view of a blade mechanism (partially) in contact with a forming table according to one embodiment of the application;

FIG. 7 is a schematic view of a side of a blade facing a forming surface parallel to the forming surface in an embodiment of the application;

FIG. 8 is a schematic view of the blade contacting the forming table when the adjustment assembly includes only the resilient member in one embodiment of the present application;

FIG. 9 is a schematic view of a blade in an embodiment of the application;

FIGS. 10 a-10 c are schematic views of a blade during a blade member according to an embodiment of the present application;

FIG. 11 is a schematic view of a blade member of a blade of the present disclosure having an angled edge;

FIG. 12 is a schematic view of a blade member of a blade having an arcuate blade edge in accordance with one embodiment of the present application;

FIG. 13 is a schematic diagram of a card reader according to an embodiment of the application;

FIG. 14 is a schematic view of a molding platform and related structures according to an embodiment of the present application;

FIG. 15 is a schematic view of a tray and related structures according to an embodiment of the present application;

FIG. 16 is a first schematic view of a connector assembly according to an embodiment of the application;

FIG. 17 is a second schematic view of a connector assembly according to an embodiment of the application;

FIG. 18 is a schematic view of a socket inverted according to another embodiment of the application;

FIG. 19 is a schematic view showing the distribution of the individual sensors of the shovel mechanism according to one embodiment of the present application;

FIG. 20 is a schematic view illustrating an illumination mechanism according to an embodiment of the present application;

FIG. 21 is a schematic view of a second adjustment plate according to an embodiment of the present application;

FIG. 22 is a schematic diagram showing a state before a tray is fixed in an embodiment of the present application;

FIG. 23 is a schematic view showing a fixed tray according to an embodiment of the present application;

FIG. 24 is a schematic view of an automatic liquid feeding mechanism according to one embodiment of the present application at a first viewing angle;

FIG. 25 is a schematic diagram illustrating assembly of a transfer charging assembly of an automatic charging mechanism according to an embodiment of the present application;

FIG. 26 is an exploded view of a relay charging assembly of the automatic charging mechanism in one embodiment of the application;

FIG. 27 is a schematic view of an automatic liquid feeding mechanism according to one embodiment of the present application at a second view angle;

FIG. 28 is a flow chart of a 3D printing method in one embodiment of the application;

FIG. 29 is a flow chart of controlling the forming table and blade to approach each other and to obtain pressure between the blade and forming surface in one embodiment of the application;

FIG. 30 is a schematic view of the different orientations of the shovel mechanism at various nodes of the shovel process in accordance with one embodiment of the present application.

Icon: 010-printer; 020-printing member; 100-a cabinet; 110-an operating mechanism; 200-a forming platform; 210-molding surface; 220-platform tags; 230-a platform card reader; 300-shovel mechanism; 310-shovel assembly; 320-a blade assembly; 321-a shovel blade; 3211-knife edge; 3212-a first surface; 3213-a second surface; 3214-ramp; 322-knife holder; 323 an adjustment assembly; 3231-an elastic member; 3232-an adjustment; 324-liquid blocking piece; 325-knife label; 326-shutter; 330-a shovel drive assembly; 331-a power module; 332-a transmission module; 333-a power receiving unit; 3331—a drive wheel; 3332—driven wheel; 3333-drive belt; 334-a drive shaft; 335-a synchronous transmission unit; 3351-driving wheel; 3352—synchronizing wheel; 3353-synchronous belt; 336-slide rail; 337-a sliding seat; 338-sliders; 339-driving block; 340-a scraper knife card reader; 350-connector assembly; 351—a receiver; 3511-a discharge hole; 3512—a second magnetic part; 352-joint drive assembly; 3521-screw rod; 3522—a connector driver; 353-a receiver track; 354-kick-out piece; 3541—kick-out portion; 3542—a first magnetic portion; 355—a kick-out rail; 360-a first sensor; 361-a second sensor; 362-receiving a level sensor; 363-kick-out completion sensor; 364-socket sensor; 365-print sensor; 400-storage; 500-substrate; 510-a light-transmitting region; 520-a material receiving aperture; 530-a clearance through hole; 540-a support; 541-pallet; 542-scaffold; 543-rolling elements; 544-elastic floats; 545-guiding shaft; 550-guiding pressing blocks; 600-illumination mechanism; 610-ray machine; 620-fixing plate; 630-mounting an assembly; 631-mounting a back plate; 632-a first adjustment plate; 633-a second regulating plate; 6331-adjusting screw holes; 6332-fastening through holes; 6333-locking screw holes; 6334-drive holes; 634-a third adjustment plate; 700-a material tray; 710-tray label; 720-a tray reader; 800-a platform driving mechanism; 900-an automatic liquid adding mechanism; 910-a transfer liquid adding component; 920-charging box; 921-a charging box body; 922-a liquid outlet part; 923-a liquid outlet pipeline; 924-a first fixed bracket; 925-a second fixed bracket; 926—fool-proofing member; 9261-positioning holes; 9262-locating pins; 930-locking structure; 931-blocking piece; 9311-baffle; 9312-connecting plates; 9313-a holding portion; 9314-sealing plug; 932—a slider; 933-bolts; 934-driving rod; 940-a liquid feeding drive assembly; 950-a storage mechanism; 951-a liquid storage bottle; 952-check valve.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present application and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present application.

Furthermore, the terms "first," "second," "third," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

It should be noted that the features of the embodiments of the present application may be combined with each other without conflict.

The 3D printers of the prior art utilize curable printing materials to print three-dimensional prints layer by layer on a modeling platform. After the printing of the printing part is completed, the printing part needs to be removed from the forming platform, but a method of manually shoveling the printing part is adopted at present, and an operator shovels the printing part from the forming platform by holding a shovel blade. This approach has the following disadvantages:

(1) The printer needs personnel on duty, and a shovel part is needed to be manually carried out every time a printing part is printed, so that the next printing part can be printed, the labor cost is high, and the efficiency of a printing job is low;

(2) The consistency of the operation of the shovel is difficult to ensure by the manual shovel, and the operation of the shovel is difficult to standardize, so that the quality of the printing piece is unstable;

(3) The surface of the print immediately after completion remains attached with the uncured print material, and the operator is likely to contact the uncured print material, resulting in contamination of the person with the print material, and there may be a risk of contamination within the printer during the scooping process.

In order to improve at least one defect in the prior art, the embodiment of the application provides a shovel mechanism, a 3D printer and a 3D printing method, which can automatically separate printed parts on a forming platform, avoid manually shoveling the parts, realize standardized shovel operation, and are beneficial to improving efficiency, reducing labor cost and avoiding pollution to personnel and equipment.

In order to facilitate understanding of the 3D printing method provided by the embodiment of the present application, the following description first describes a 3D printer provided by the embodiment of the present application.

FIG. 1 is an overall schematic of a 3D printer 010 according to an embodiment of the present application; fig. 2 is a schematic diagram illustrating the cooperation between the forming platform 200 and the shovel mechanism 300 according to an embodiment of the present application. As shown in fig. 1 and 2, a 3D printer 010 (hereinafter referred to as a printer 010) according to an embodiment of the present application may include a cabinet 100, and a molding platform 200, a shovel mechanism 300, a substrate 500, an illumination mechanism 600 (see fig. 20), a tray 700 (see fig. 19), and a platform driving mechanism 800 disposed in the cabinet 100. The molding platform 200 and the tray 700 may be disposed on one side of the substrate 500, and the illumination mechanism 600 may be disposed on the other side of the substrate 500. In this embodiment, the mechanisms of the 3D printer 010 cooperate with each other to form the printing material into a desired print.

In an embodiment of the present application, the molding platform 200 may have a molding surface 210 (see fig. 10 a), the molding surface 210 may be used for attaching a printing element, and the platform driving mechanism 800 may be used for driving the molding platform 200 to move. In this embodiment, the platform driving mechanism 800 may be used to drive the forming platform 200 to move in the first direction (i.e. the direction indicated by the arrow cd in the figure), and the moving path of the forming platform 200 may be a straight line. Specifically, the first direction may be perpendicular to the plate surface of the substrate 500, and the molding surface 210 of the molding platform 200 may be a lower surface of the molding platform 200 and may be opposite to the plate surface of the substrate 500. During printing, the print can be cured layer by layer on the molding surface 210 and the molding table 200 is gradually raised as the print is formed layer by layer.

Referring further to fig. 19, the substrate 500 may have a transparent region 510, the tray 700 may be disposed at the transparent region 510, and a material of a portion of the tray 700 corresponding to the transparent region 510 may be transparent, and the tray 700 may be used for carrying printing materials. It should be noted that, the printing material used in the printer 010 according to the embodiment of the present application may be a liquid photosensitive material, such as a photosensitive resin. The printing material is curable by irradiation with light of a certain wavelength to form a solid printed article having a certain strength.

The illumination mechanism 600 may be disposed under the substrate 500 corresponding to the light-transmitting region 510, and may emit light capable of curing the printing material. Accordingly, the tray 700 and the molding platform 200 may be located above the substrate 500.

In 3D printing, the platform driving mechanism 800 may drive the forming platform 200 to move close to the tray 700, so that the forming surface 210 is immersed in the printing material carried by the tray 700, and the light of the illumination mechanism 600 can pass through the light-transmitting region 510 and irradiate into the tray 700, so that the printing material located between the bottom of the tray 700 and the forming surface 210 is cured and is cured on the forming surface 210 of the forming platform 200, or is cured on the printing material of the previous layer already cured on the forming surface 210.

With further reference to fig. 1-4 and 19, in one embodiment, the scooping mechanism 300 may be located between the forming platform 200 and the tray 700, and may be used to automatically peel the printed product from the forming surface 210 after printing is completed, so that the forming platform 200 may be used to cooperate with printing a next printed product without the operator having to manually remove the forming platform 200 from the printer 010 for the scooping operation. Specifically, shovel mechanism 300 may include a shovel assembly 310 and a connector assembly 350.

Among other things, the blade assembly 310 may include a blade assembly 320 and a blade drive assembly 330. Wherein the blade assembly 320 may include a blade 321. The blade drive assembly 330 may be used to drive at least one of the blade 321 and the forming table 200 such that relative movement between the blade 321 and the forming table 200 can occur to peel the print from the forming surface 210 via the blade 321. In this embodiment, the blade driving assembly 330 is specifically configured to drive the blade 321 to move, so that the blade 321 slides on the molding surface 210 of the molding platform 200, thereby peeling the printed product from the molding surface 210. Alternatively, the blade drive assembly 330 may drive the blade 321 to move in a straight line, and in this embodiment, the blade 321 may move in a second direction (indicated by arrow ef). Wherein the second direction may be perpendicular to the first direction and may be parallel to the molding surface 210.

In one embodiment, the shovel driving assembly 330 may include a power module 331, a transmission module 332, a sliding rail 336, and a sliding base 337. The blade 321 may be mounted on the sliding base 337, and the sliding base 337 may be slidably coupled to the sliding rail 336. The transmission module 332 is in transmission connection with the power module 331 and the sliding seat 337 respectively, and is configured to receive power output by the power module 331, so as to drive the sliding seat 337 to drive the scraper knife 321 to move along the sliding rail 336. Specifically, the power module 331 may be a motor, such as a stepper motor, or other mechanism capable of providing power.

The number of the sliding rails 336 and the sliding seats 337 may be two, and the two sliding rails 336 and the two sliding seats 337 are in one-to-one correspondence. The two sliding rails 336 may be disposed at a parallel interval, and the two sliding seats 337 may be slidably connected to the corresponding sliding rails 336, respectively.

Further, the blade 321 may be integrally formed in a strip shape, and the length direction thereof may be perpendicular to the first direction and the second direction, and two ends of the blade 321 along the length direction thereof may be respectively mounted on two sliding seats 337 disposed at intervals, so as to be capable of moving smoothly under the driving of the two sliding seats 337.

In one embodiment, the transmission module 332 may include a power receiving unit 333 and a synchronous transmission unit 335. The power receiving unit 333 may be connected to the power module 331 and the synchronous transmission unit 335, respectively, to receive the power output by the power module 331 and transmit the power to the synchronous transmission unit 335; the synchronous transmission unit 335 may be connected to the sliding base 337 in a transmission manner, so as to drive the sliding base 337 to slide on the sliding rail 336, and further drive the scraper knife 321 to move through the transmission base.

Specifically, the power receiving unit 333 may include a driving pulley 3331, a driving belt 3333, and a driven pulley 3332. The driving wheel 3331 can be connected with the output end of the power module 331, and the driven wheel 3332 can be connected with the driving wheel 3331 through the driving belt 3333, so that the power output by the power module 331 can be sequentially transmitted to the driven wheel 3332 through the driving wheel 3331.

The synchronous transmission unit 335 may include a transmission shaft 334, two transmission wheels 3351, two synchronous wheels 3352 and two synchronous belts 3353, and the two transmission wheels 3351, the two synchronous wheels 3352 and the two synchronous belts 3353 are respectively in one-to-one correspondence. The driven wheel 3332 is sleeved on the periphery of the transmission shaft 334, so that the transmission shaft 334 can rotate synchronously with the driven wheel 3332. The two driving wheels 3351 are respectively sleeved on the peripheries of the two ends of the driving shaft 334 and synchronously rotate with the driving shaft 334. Further, the two synchronizing wheels 3352 may be respectively connected to the corresponding driving wheels 3351 through corresponding synchronous belts 3353, so as to realize synchronous rotation.

Further, each sliding seat 337 can be in transmission connection with the corresponding synchronous belt 3353, so that the sliding seat can slide along the direction defined by the sliding rail 336 under the driving of the synchronous belt 3353, thereby realizing the synchronous movement of the shovel 321.

In an embodiment, the transmission mode of the transmission module 332 is transmission between a gear and a gear belt, and the sliding base 337 may include a sliding block 338, where the sliding block 338 may include a toothed engagement portion, and the toothed engagement portion may be engaged with the corresponding saw tooth on the synchronous belt 3353, so as to realize transmission between the synchronous belt 3353 and the sliding block 338. Further, the sliding base 337 may further include a transmission block 339, where one side of the transmission block 339 is connected to the slider 338, and the other side is connected to the blade assembly 320, and disposed on a side of the slider 338 near the engagement portion, and disposed on a side of the timing belt 3353 facing away from the slider 338, such that the timing belt 3353 is sandwiched between the slider 338 and the transmission block 339. Specifically, the slider 338 and the transmission block 339 can be connected by a screw, and pressure is applied to the synchronous belt 3353 clamped between the slider 338 and the transmission block 339 by the connection of the slider and the transmission block, so that the transmission between the meshing part and the synchronous belt 3353 is more reliable and is not easy to loosen.

Of course, in other embodiments, the transmission may not be performed in this manner. For example, in one embodiment, the power module 331 and the transmission module 332 may be a motor and a screw, respectively, and further connected to the blade 321 or a mounting structure of the blade 321 through a nut, so as to implement driving of the blade 321. In this case, a sliding rail may not be provided, and the scraper blade 321 or an installation structure of the scraper blade 321 may be directly connected to the screw rod, so as to drive the scraper blade 321 to move; a slide rail 336 similar to the previous embodiment may also be provided, in which case a screw may be coupled to the slide mount 337 for driving the slide mount 337 along the slide rail 336 to thereby drive the blade 321. Of course, the sliding base 337 may not include the slider 338 and the transmission block 339, but may be formed as a single structure, and the blade 321 or the mounting structure of the blade 321 may be directly mounted on the sliding base 337.

FIG. 5 is a schematic diagram illustrating the assembly of the blade assembly 320 and the drive block 339 according to one embodiment of the present application; fig. 6 is a schematic view of a blade mechanism 300 (partially) in contact with a forming table 200 according to an embodiment of the present application. As shown in fig. 5 and 6, in the present embodiment, the blade assembly 320 may further include a blade holder 322, and the blade 321 may be mounted on the transmission block 339 through the blade holder 322. Specifically, the number of the tool holders 322 may be two, and the tool holders correspond to two ends of the blade 321 and the two transmission blocks 339 one by one, and two ends of the blade 321 are respectively mounted on the two corresponding tool holders 322. Further, the two tool holders 322 are each rotatably connected to a corresponding drive block 339.

In the present embodiment, the extension direction of the two tool holders 322 with respect to the rotation axis of the transmission block 339 coincides with the length direction of the blade 321, i.e., is perpendicular to the moving direction of the blade 321. By setting the rotation direction of the blade holder 322 in this manner, the blade 321 can rotate around the longitudinal direction thereof, thereby providing the blade 321 with a condition for adjusting the elevation angle. The feed angle (the included angle with the molding surface 210) of the shovel blade 321 can be adjusted by adjusting the elevation angle of the shovel blade 321 so as to meet the requirements under different use scenes. It will be appreciated that the blade 3211 of the blade 321 may be attached to the forming surface 210 to provide a better spade effect, and with the forming surface 210 of the forming platform 200 facing downward, the state of the blade 321 may be adjusted by the rotational connection between the blade holder 322 and the driving block 339 so that one side of the blade 3211 of the blade 321 is raised, i.e., one side of the blade 3211 is located at a high point, or at least level, relative to other portions of the blade 321, so that the blade 3211 may better contact the forming surface 210.

In an alternative embodiment, as shown in fig. 5, the blade assembly 320 may further include an adjusting assembly 323, one end of the blade holder 322 may be rotatably connected to the transmission block 339, the other end of the blade holder 322 may be engaged with the adjusting assembly 323, the blade 321 may be fixedly connected to the blade holder 322, and the adjusting assembly 323 may be used to adjust a rotation angle of the blade holder 322 relative to the transmission block 339, so as to adjust an inclination angle of the blade 321 relative to the molding surface 210. The side of the blade 321 facing the molding surface 210 may have a certain angle with the molding surface 210 by the adjusting component 323 as shown in fig. 6, or the side of the blade 321 facing the molding surface 210 may be adjusted to be parallel to the molding surface 210 as shown in fig. 7.

In the present embodiment, the adjusting assembly 323 includes an elastic member 3231, one end of the elastic member 3231 can abut against the tool holder 322, and the other end can abut against the driving block 339. The elastic member 3231 can apply a force to the tool holder 322 toward the molding surface 210, thereby having a tendency to expand the inclination angle of the blade 321 with respect to the molding surface 210. In fig. 6, the elastic member 3231 has a tendency to push the blade holder 322 to rotate counterclockwise, so that when the blade 3211 of the blade 321 contacts the molding surface 210, the elastic member 3231 presses the blade 321 against the molding surface 210 and can maintain a certain pressure, so that the effect of the blade can be ensured. On the other hand, the elastic member 3231 may be deformed, so that the blade 321 has a certain moving space when the blade 321 is pushed against the blade 321, thereby reducing the risk of damage to the blade 321 due to excessive stress when the molding platform 200 is pushed against the blade 321. In this embodiment, the elastic member 3231 may be a compression spring.

It will be appreciated that the angle of inclination between the blade 321 and the forming surface 210 may not be too large to ensure good spade effect, which would otherwise easily result in excessive force between the blade 321 and the print when sliding over the forming surface 210, and damage to the print or the blade edge 3211 of the blade 321. In addition, the too large inclination angle between the blade 321 and the molding surface 210 may cause the blade 3211 of the blade 321 to be damaged (e.g., curled) due to the large stress during the process of approaching and pressing the blade 321 to the molding surface 210. Thus, in some cases, it is desirable that the blade 321 have a reasonable pre-load angle, and the spring 3231 cannot be used to push the blade 321 to an excessive elevation angle. Thus, optionally, the adjusting assembly 323 may further include an adjusting member 3232, wherein the distance between the adjusting member 3232 and the transmission block 339 is adjustable, and the adjusting member 3232 may be used to abut a side of the blade holder 322 away from the elastic member 3231, thereby defining a rotation range of the blade holder 322 to limit an elevation angle of the blade 321, i.e., limit a maximum inclination angle of the blade 321 relative to the molding surface 210.

Specifically, the adjusting member 3232 in this embodiment may be an adjusting bolt, where a screw of the adjusting bolt may be partially disposed through the tool holder 322 and the compression spring and is screwed with the driving block 339, and a head of the adjusting bolt is used to abut against the tool holder 322. It can be seen that with the spring 3231 having a sufficient compressive spring force, the adjusting bolt abuts the blade seat 322, thereby limiting the maximum elevation of the blade 321, i.e., limiting the pre-load angle of the blade 321. By screwing the adjusting bolt, the preassembling angle of the shovel blade 321 can be adjusted. When the forming surface 210 contacts the blade 321, the elastic member 3231 is further compressed, so that the inclination angle between the blade 321 and the forming surface 210 is reduced to an angle favorable for the blade by the rotation of the tool holder 322.

In some alternative embodiments, the adjustment assembly 323 may comprise only the resilient member 3231, in which case the tool holder 322 is not limited by the adjustment member 3232. In the case that the rotation of the blade holder 322 is not limited, the maximum extension of the elastic member 3231 should be limited to a reasonable range, so as to avoid excessive overturning of the blade holder 322 and the blade 321 when not pressed against the forming table 200. In an embodiment, referring to fig. 8, the adjusting component 323 may only include an elastic member 3231, and the tool holder 322 is provided with a hard limit structure relative to the transmission block 339, so that the tool holder 322 can abut against the transmission block 339 and cannot rotate continuously when rotating counterclockwise to a certain angle, thereby defining a maximum rotation angle of the tool holder 322 relative to the transmission block 339, and defining a maximum elevation angle of the blade 321, so that the problem that the blade 321 and the tool holder 322 turn over too much in terms of assembly is avoided. In an application scenario, the structural hard stop allows the tool holder 322 to rotate 7 ° counterclockwise at maximum.

In alternative other embodiments, the elastic member 3231 is not limited to a compression spring, but may be a member having elasticity such as rubber, torsion spring, or the like.

With continued reference to fig. 5, the blade 321 may be strip-shaped and include two ends disposed along a length direction thereof, and the cutting edge 3211 of the blade 321 may extend along the length direction of the blade 321 and be disposed between the two ends of the blade 321. In one embodiment, the blade assembly 320 may further include a liquid blocking member 324, and the liquid blocking member 324 may be disposed on the blade 321 and may be used to block liquid on the blade 321 from flowing toward both ends of the blade 321 during the process of the blade 321. As shown in fig. 5, the number of the liquid blocking members 324 may be two, and a portion of the blade 321 between the two liquid blocking members 324 is used for the blade. Since the surface of the printing member is partially uncured when the printing member is just finished, the liquid printing material can be blocked by the liquid blocking member 324, so that the liquid printing material can be prevented from flowing to two ends of the shovel blade 321 along the shovel blade 321 or dripping out of the bearing member 351 below the shovel blade 321 to cause equipment pollution.

FIG. 9 is a schematic view of a blade 321 according to an embodiment of the application; fig. 10a to 10c are schematic views of a blade 321 during a shovel according to an embodiment of the present application. As shown in fig. 9 and fig. 10a to 10c, in this embodiment, the blade 321 has a first surface 3212 and a second surface 3213 opposite to each other, and a slope surface 3214 connecting the first surface 3212 and the second surface 3213, an included angle between the slope surface 3214 and the first surface 3212 is an acute angle, a junction between the slope surface 3214 and the first surface 3212 forms a cutting edge 3211 of the blade 321, and an included angle between the slope surface 3214 and the first surface 3212 is a cutting edge angle. When the blade 321 slides on the molding surface 210, the blade 3211 contacts the molding surface 210, the first surface 3212 faces toward the molding surface 210, and the second surface 3213 faces away from the molding surface 210. The slope 3214 is inclined downward, and as the blade 321 cuts from the edge of the printing material 020, the printing material 020 is slid onto the slope 3214 on the side that is originally in contact with the molding surface 210, and the slope 3214 of the blade 321 guides the printing material 020 so as to be smoothly peeled from the molding surface 210. The lateral length of the ramp 3214 may be consistent with the length of the blade 321; but may be disposed only on one of the segments of the blade 321 (meaning that the length of the blade 3211 is less than the length of the blade 321), for example, only in the region between the two liquid barriers 324, or may be disposed in a manner as shown in fig. 9 according to actual needs, without limitation. In the process of the shovel, the blade 3211 of the shovel blade 321 contacts the forming surface 210, and the inclination angle between the slope 3214 and the forming surface 210 is the feed angle (angle a in fig. 10a to 10 c). The feed angle needs to be controlled in a reasonable range, and the smaller the feed angle, the smoother the spade piece can be, and the smaller the tearing probability of the printing piece 020 is; however, too small a feed angle requires a relatively small angle of the blade 321, and the small angle is prone to chipping or curling of the blade 3211. In alternative embodiments, the feed angle may be controlled to be 15-20 ° at the time of the blade, so the edge angle of the blade 321 should be less than or equal to the feed angle.

In this embodiment, the cross section of the blade 321 may be a right trapezoid, which refers to a cross section perpendicular to the length direction of the blade 321 and located at the position of the blade 3211. The sloping sides of the right trapezoid in cross section correspond to the sloping sides 3214 of the blades 321, the bottom sides of the right trapezoid correspond to the first surfaces 3212 of the blades 321, and the top sides of the right trapezoid correspond to the second surfaces 3213 of the blades 321.

Improving the service life of the blade 321 can reduce the frequency of replacing the blade 321, thereby improving the production efficiency. Because the acting force between the shovel 321 and the printing part 020 in the shovel process can affect the abrasion rate of the blade 3211 of the shovel 321, and further affect the service life of the shovel 321, the acting force between the shovel 321 and the printing part 020 in the shovel process needs to be reasonably reduced, so that the shovel process is smoother. In the present embodiment, as shown in fig. 9, the blade 3211 of the blade 321 may be a straight blade 3211, which is in line contact with the molding surface 210. If the edge of the contact surface between the printing member 020 to be peeled and the molding surface 210 also has a straight line and is perpendicular to the driving direction of the blade driving assembly 330 (i.e., the moving direction of the blade 321), the line contact may be caused when the blade 3211 of the blade 321 contacts the edge of the printing member 020, and the force between the blade 321 and the printing member 020 is relatively large, so that the blade 3211 of the blade 321 is embedded between the printing member 020 and the molding surface 210 with relatively large resistance. In order to reduce the resistance when the blade 321 starts to cut between the printing material 020 and the molding surface 210, the contact mode of the blade 3211 of the blade 321 at the time of initial contact with the printing material 020 may be point contact. Fig. 11 is a schematic view of a blade member of a blade 321 with a beveled edge 3211 according to an embodiment of the present application. Fig. 11 is a plan view from the side of the modeling platform 200. In order to reduce the resistance of the blade 321 when initially contacting the print 020, as shown in fig. 11, in an alternative embodiment, the straight edge 3211 of the blade 321 may be inclined to the driving direction of the blade drive assembly 330, in which case the edge 3211 of the blade 321 is still in line contact with the forming surface 210, but in the case where the edge of the print 020 is straight and perpendicular to the direction of movement of the blade 321, the blade 321 may start cutting from one of the straight edges of the print 020. This spade mode can make the contact mode be point contact when the blade 3211 and the printing member 020 start to contact, and the interaction force between the printing member 020 and the spade 321 is small. In addition, in the subsequent shoveling process, the shoveling blade 321 has a component in the extending direction of the cutting edge 3211 relative to the moving direction of the printing piece 020, so that the lateral cutting effect is achieved, and the acting force between the printing piece and the shoveling blade 321 is reduced.

Fig. 12 is a schematic view of a blade member of a blade 321 having a curved blade 3211 in accordance with one embodiment of the present application. Fig. 12 is a plan view from the side of the modeling platform 200. As shown in fig. 12, in order to make the contact between the blade 3211 and the print material 020 at the start of contact in a point contact manner, the blade 3211 of the blade 321 may be provided as an arc-shaped blade 3211. The blade 321 of the arc blade 3211 contacts the edge of the printing member 020 first when the blade is shoveled, and the front end of the blade 3211 is gradually cut into by one point, so that the contact force between the blade 321 and the printing member 020 at the initial stage of shoveling can be reduced, and the printing member 020 can be shoveled off more easily.

Of course, the shape of the connection portion between the printing material 020 and the molding surface 210 may be optimized so that the blade 321 can peel off the printing material 020 more easily. For example, the edge profile of the printing member 020 that contacts the molding surface 210 is configured to be circular, or to have an arc shape into which the blade 321 can cut, so that the blade 321 contacts the edge of the printing member 020 in a point contact manner when the blade is used. Alternatively, the data of the printing member 020 may be designed such that, in the initial stage of molding the printing member 020, the contact angle between the printing member 020 and the molding surface 210 is an obtuse angle, that is, the included angle between the molding surface 210 and the outer surface of the printing member 020, which is connected to the bottom surface (i.e., the surface directly contacting the molding surface 210) and is close to the shovel member, is an acute angle. In this way, the edge of the printing member 020 has a wedge-shaped chamfer for the cutting of the blade 321, so that the moment the blade 321 cuts into the printing member 020 can cause the printing member 020 to receive a lever force pried up in a direction away from the forming platform 200, whereas the conventional cutting method must cut into a certain size, and the blade 321 is used to squeeze the printing member 020 into the fracture opening to exert the force.

In this embodiment, the blade assembly 320 may further include a blade tag 325, and the blade tag 325 may be disposed on the blade 321 so as to be movable with the blade 321, and may be disposed at a position of the blade 321 near an end thereof in the length direction, which is not used for the blade member, and may not be contaminated with the printing material under the barrier of the liquid barrier 324. Correspondingly, the printer 010 is also provided with a blade reader 340 for identifying the blade tag 325. The blade reader 340 may be fixedly disposed at a blade initial position near the blade 321, and may be directly or indirectly mounted on the substrate 500 through a bracket, so that when the blade 321 finishes returning the blade to the blade initial position, the blade reader 340 can determine the number of times of use of the blade 321 after identifying the blade tag 325, thereby playing a guiding role in replacing the blade 321.

Further, the blade tag 325 may be an NFC tag, and the number of times of usage of the corresponding blade 321 can be recorded by writing, specifically, when the blade 321 completes a blade and returns to the initial position of the blade, the control mechanism of the 3D printer 010 controls the blade reader 340 to communicate with the blade tag 325, so that the blade tag 325 performs the operation of writing the number of times of usage. The blade reader 340 is an NFC reader, and can communicate with the NFC tag when the blade 321 returns to the blade initial position, and the number of times of use of the blade 321 is taken from the NFC tag and fed back to the control mechanism. When the control mechanism receives that the use times of the shovel blade 321 are full, the shovel blade reaches the service life of the shovel blade, or the shovel blade is about to reach the service life, an alarm or early warning can be carried out by controlling a control screen or other modes such as ringing, light flashing and the like so as to remind the user of timely replacing the corresponding shovel blade 321. In addition, since the NFC tag can automatically record the number of times the blade 321 is used, when the blade 321 is used on a different printer 010, the blade reader 340 can also acquire the number of times the blade 321 is used from the blade tag 325, so as to know the remaining service life of the blade 321.

Of course, in other embodiments, the positions and the communication timing of the blade tag 325 and the blade reader 340 are not limited to the above manner, for example, the blade 321 may be installed to control the blade tag 325 and the blade reader 340 to perform near field communication, so as to realize reading and writing, which may be specifically set according to actual requirements, but is not limited thereto.

FIG. 13 is a schematic diagram of a blade reader 340 in accordance with an embodiment of the present application. As shown in fig. 13, a blade reader 340 may be disposed outside of one of the drive blocks 339 to move with the blade 321. In particular, the blade reader 340 may be disposed on a bracket mounted outside of the drive block 339. In alternative other embodiments, the blade reader 340 may be located elsewhere on the printer 010, so long as near field communication with the NFC tag is enabled. In other embodiments, the blade tag 325 may also be other types of electronic tags, such as at least one of two-dimensional codes, character codes, digital codes, bar codes, specialty patterns, NFC tags, RFID tags, electronic chips, and the like. In addition, the tag itself may not have a recording function, but after the tag is identified by the card reader, the use of the blade 321 may be recorded by a controller connected to the card reader. Of course, the NFC tag is not limited to only record the number of times of use of the corresponding blade 321, but also record other identity information of the corresponding blade 321 as required, such as a number, a shape, a material, a delivery time, a manufacturer, a material capable of shoveling a printed part, a range capable of bearing a shoveling force, and the like, and specifically can be set according to actual use requirements, which is not limited specifically herein.

In an embodiment, referring to fig. 14, a platform tag 220 having a similar function to the scraper tag 325 may be disposed on the forming platform 200 of the 3d printer, and a corresponding platform card reader 230 is installed at a corresponding position of the platform tag 220, such as on a mounting structure of the forming platform 200, so as to cooperate with writing and reading the number of times of use of the forming platform 200, so as to monitor the service life of the forming platform 200. In one application scenario, when the modeling platform 200 is installed and printing is about to begin, the control mechanism may control the platform reader 230 to communicate with the platform tag 220 on the modeling platform 200 and read the number of uses it records, and if the modeling platform has reached its lifetime or if it is predicted that the number of times that the next printed piece needs to be reused to be printed exceeds its lifetime, the printing using the modeling platform 200 is denied, for example, a reminder identifier is displayed on the control screen. For example, the platform reader 230 reads that the build platform 200 has been used 29999 times, and the life of the build platform 200 is 30000 times, and the next printed part to be printed has 1000 layers, and predicts that the build platform 200 is used more than 30000 times after printing the printed part, and therefore will issue a reminder and refuse to print using the build platform 200.

In another application scenario, if the platform tag 220 is not installed on the molding platform 200, when the control mechanism controls the platform card reader 230 to communicate with the platform tag 220 on the molding platform 200, communication cannot be achieved, and thus the molding platform 200 is also rejected.

For the recording function of the NFC tag, the control mechanism may control the platform card reader 230 to communicate with the platform tag 220, so that the platform tag 220 can correspondingly write corresponding usage times, thereby enabling the platform tag 220 to record its service life. For the platform label 220 on the forming platform 200, the writing can be performed once every printing layer, or the corresponding usage times of the printing piece can be written when each printing is completed or started, specifically, the setting can be performed according to the actual requirement, and the method is not limited specifically. In this way, when the molding table 200 is changed from one printer to another, the number of times of use is recorded in the table label 220 attached to the molding table, and thus the reading/writing operations of the table reader 230 and the table label 220 on the other printer are the same as described above.

Further, referring to fig. 15, in another embodiment, a tray label 710 having a function similar to that of the platform label 220 is also provided on the tray 700, and a corresponding tray card reader 720 is installed at a corresponding position of the tray label 710, such as on a mounting structure of the tray 700, so as to cooperate with the number of times of writing and reading the tray 700, so as to monitor the service life of the tray 700. Specifically, when the tray 700 is installed on the printer, the control mechanism controls the tray label 710 to communicate with the tray reader 720, so that writing and reading can be performed. The functions and implementation of the tray label 710 and the tray reader 720 may be the same as those of the platform label 220 and the platform reader 230, and the detailed description thereof will be omitted herein.

Fig. 16 is a schematic view of a connector assembly 350 according to an embodiment of the application. 16-17, in an embodiment of the present application, the connector assembly 350 may include a connector 351 and a connector drive assembly 352, the connector 351 having a connector level and a connector level. The receiving member 351 is movably disposed between the molding table 200 and the tray 700 when the receiving member is at the receiving position, and is capable of receiving the printing member 020 that has fallen from the molding surface 210, and is capable of pouring out the received printing member 020 when the receiving member is at the discharging position. The receiver driving assembly 352 is used for driving the receiver 351 to move between a receiving position and a discharging position, so that the printed matter 020 adhered on the forming platform 200 is automatically shoveled and transferred by the cooperation of the shovel assembly 310, and unmanned full-automatic shovel and receiver of the printer 010 are realized. Further, the arrangement of the connector assembly 350 makes it possible to directly perform the spade at the position where the forming platform 200 is originally located, and the mechanism and the components of the 3D printer for executing the printing work, such as the forming platform 200, do not need to be moved, and do not need to take down the forming platform 200, that is, only the spade 321 and the receiver 351 for executing the spade work need to be moved to the position below the forming platform 200 to perform the spade and the connector, compared with the case that the forming platform 200 needs to be moved to the set position or the forming platform 200 needs to be taken down from the printer to perform the spade in the related art, the scheme in the embodiment can greatly improve the stability of the 3D printer, so as to improve the printing quality of the printer, and reduce the maintenance frequency and the maintenance cost of the printer; on the other hand, due to the receiving function of the receiving member 351, the liquid printing material adhered on the forming platform 200, the printing member 020 and the scraper 321 can directly flow into the receiving space of the receiving member 351, so that the liquid printing material cannot drop to other positions to cause pollution.

In this embodiment, the receiving level and the discharging level may be spaced apart in the second direction, and thus, the movement path of the receiving member 351 may be parallel to the movement path of the blade 321. Specifically, the connector assembly 350 may further include a connector rail 353, two sides of the connector 351 are overlapped on the connector rail 353 and may slide along the connector rail 353 in the second direction under the driving of the connector driving assembly 352, and the connector rail 353 may serve to support the connector 351 and guide the connector 351. Specifically, the connector assembly 350 may further include rollers coupled to the receiver 351 and mounted on both sides of the receiver 351, and the receiver 351 may be overlapped on the receiver track 353 by the rollers, and the sliding of the receiver 351 on the receiver track 353 may be achieved by rolling and/or sliding of the rollers. Further, the number of the rollers may be four, that is, two sides of the receiving member 351 may be respectively mounted, so as to realize stable sliding of the receiving member 351. Here, both sides of the receiver 351 may refer to both sides of the receiver 351 in the length direction of the blade 321.

In this embodiment, the receiving member 351 has a receiving space for receiving the printing member 020, so that the receiving member may be in a basket shape, and a discharge port 3511 communicating with the receiving space is provided at one side of the receiving member 351, and the discharge port 3511 is provided for removing the printing member 020 from the receiving member 351. Of course, in alternative embodiments of the application, the receiving member 351 may have a different configuration, such as a plate shape, so long as it is capable of receiving a print.

Further, the receiver assembly 350 may also include a kick-out member 354, which kick-out member 354 may be used to kick out a print in the receiver 351, thereby freeing up the receiver space so that the receiver 351 may continue to carry other print. The stirring piece 354 can include a stirring portion 3541, and the stirring portion 3541 is configured to stir the printed piece in the receiving space in a stirring stage, so as to stir the printed piece out of the discharge hole 3511. Further, after one printing, the forming platform 200 or the printing piece may have liquid printing materials remained thereon, so that the liquid printing materials may flow into the receiving space of the receiving piece 351 during the shoveling piece, and therefore, in an application scenario, the material stirring portion 3541 may be at least located at one side of the whole structure of the material stirring piece 354 near the bottom of the receiving space of the receiving piece 351, so that the liquid printing materials in the receiving space can be pulled out of the discharge hole 3511 during the stirring piece.

In one application scenario, the material stirring portion 3541 may be made of a rigid material, and it is understood that, especially in a case where the material at the bottom of the material receiving space of the receiving element 351 is also made of a rigid material, a certain gap may exist between the material stirring portion 3541 and the bottom of the material receiving space during material stirring, so that a certain amount of liquid printing material may still remain in the material receiving space of the receiving element 351 even after material stirring is completed.

In another application scenario, the stirring portion 3541 may be at least partially made of a soft material, specifically at least in a bottom area of the stirring portion 3541 near the receiving space of the receiving element 351, for example, the stirring portion 3541 may be a soft stirring portion, so that when the stirring portion 354 stirring material, the stirring portion elastically abuts against the bottom of the receiving space of the receiving element 351 to achieve tight contact, so that both the printing element and the liquid printing material possibly attached to the printing element contained in the receiving space can be pulled out of the receiving element 351 during stirring, and further cleaning of the receiving space where the receiving element 351 is located is maintained. The soft material can be silica gel, rubber or other material with certain elasticity.

Further, the stirring member 354 can further include a first magnetic portion 3542, the first magnetic portion 3542 can be disposed on a side of the stirring member 3541 facing away from the discharge hole 3511, the receiving member 351 can further include a second magnetic portion 3512, and the second magnetic portion 3512 can be disposed at an end of the receiving member 351 facing away from the discharge hole 3511 and facing the discharge hole 3511. In this embodiment, the material shifting member 354 and the receiving member 351 can be magnetically connected by the first magnetic portion 3542 and the second magnetic portion 3512. Optionally, the first magnetic portion 3542 is a magnet, and the second magnetic portion 3512 is a material that can be attracted by the magnet; alternatively, the second magnetic portion 3512 is a magnet, and the first magnetic portion 3542 is a material that can be attracted to the magnet; alternatively, the first magnetic portion 3542 and the second magnetic portion 3512 are both magnets, and the polarities of the opposite sides thereof are opposite, so that the magnets can attract each other; alternatively, when first magnetic portion 3542 and/or second magnetic portion 3512 are magnets, they may be either ordinary magnets or electromagnets, so as to controllably produce or cancel or always have magnetic properties. The portion of the receiving element 351 that can be magnetically connected to the stirring element 354 is located at least on the side of the receiving element 351 that is remote from the outlet 3511 in the second direction.

The connector driving assembly 352 can be in transmission connection with the material stirring piece 354 to drive the material stirring piece 354 to move, and further drive the receiving piece 351 to move in at least part of application scenes. Specifically, the connector driving assembly 352 may include a screw 3521 and a connector driving member 3522, the screw 3521 may be screwed with the stirring member 354, and the connector driving member 3522 is used to drive the screw 3521 to rotate, thereby driving the receiving member 351 to move. Wherein the connector driving member 3522 can be a stepper motor.

Further, the receiver assembly 350 may further include a deflector track 355, which deflector track 355 may extend in a direction consistent with the receiver track 353, and may specifically extend in the second direction, so as to be capable of guiding the deflector 354 to slide in the second direction. In this embodiment, the number of the material-stirring member tracks 355 is two, the number of the screw rods 3521 is one, two ends of the material-stirring member 354 along the first direction can be respectively erected on the corresponding material-stirring member tracks 355, and the material-receiving driving assembly 352 is connected with one end of the material-stirring member 354, so as to drive the material-stirring member 354 to slide along the two material-stirring member tracks 355. Wherein, both ends of the stirring piece 354 can be provided with rollers (such as bearings), so that the stirring piece 354 can move on the stirring piece track 355 through the rolling of the rollers, one end of the stirring piece 354 can be in threaded fit connection with the screw rod 3521, and particularly, the stirring piece 354 and the screw rod 3521 can be respectively connected through trapezoidal nuts. In other embodiments, the number of the material pulling member tracks 355 may be one, one end of the material pulling member 354 is connected with the screw rod 3521, and the other end of the material pulling member 354 may be erected on the material pulling member tracks 355; in addition, the number of the screw rods 3521 may be two, and two ends of the material stirring member 354 may be connected to the two screw rods 3521 in a one-to-one correspondence manner, which may be specifically selected according to actual requirements, and is not limited herein.

Further, the connector assembly 350 may further include a limiting member for abutting the connector 351 to limit the continued movement thereof when the connector 351 is moved to the discharging position, wherein the limiting member may be disposed on the connector track 353. Specifically, the limiting member may be a blocking piece, and may be used to limit the roller connected to the receiving member 351, so as to limit the receiving member 351 by limiting movement of the roller.

It should be noted that, after the receiving element 351 reaches the material outlet position, the receiving element driving assembly 352 may continue to drive the stirring element 354 to move in a direction away from the material outlet position, so that the stirring element 354 overcomes the magnetic attraction with the receiving element 351 and moves away from the magnetic connection area with the receiving element 351, and the printing element 020 in the receiving element 351 is pulled out from the receiving element 351 by the stirring element 354. In this embodiment, the middle of the stirring element 354 is shaped to match the receiving element 351 and can extend into the receiving space of the receiving element 351 for receiving the printing element 020. It should be noted that, when the receiving member 351 initially reaches the material outlet level, the stirring member 354 may be located at a side of the material receiving space of the receiving member 351, which is away from the material outlet 3511. After the receiving element 351 reaches the discharge level and stops moving, the stirring element 354 is further moved towards the discharge port 3511 by the driving of the receiving element driving assembly 352, so that the printing element 020 received by the receiving element 351 can be pulled out of the receiving element 351 from the discharge port 3511.

In one embodiment, the printer 010 may further include a reservoir 400, and the reservoir 400 may be disposed below the outlet 3511 of the receiver 351 for receiving a print 020 that is pulled from the outlet 3511 of the receiver 351 by the pulling member 354. Specifically, the base plate 500 is further provided with a material receiving hole 520 (see fig. 2) therethrough, and the material receiving hole 520 may be specifically located at one end of the shovel mechanism 300 away from the forming platform 200 and the tray 700 and corresponds to the material discharging position, and the storage member 400 may be placed corresponding to the material receiving hole 520, so that when the receiving member 351 moves to the material discharging position for discharging, the printing member 020 can directly enter the storage member 400 through the material receiving hole 520 after being pulled out from the material outlet 3511.

In this embodiment, the kick-out member 354 may have a U-shaped rod shape, but in other alternative embodiments of the present application, the kick-out member 354 may have other shapes, such as a plate shape, so long as the print member 020 can be pulled out of the receiving member 351.

It will be appreciated that in this embodiment, the carriage 351 and the stirring element 354 may be moved by the same driving mechanism, i.e. the carriage driving assembly 352, and in an alternative embodiment, the stirring element 354 may be driven by a separate driving mechanism, only for unloading the printing element carried by the carriage 351, without driving the carriage 351 to move, and the carriage 351 may be directly connected to the shovel driving assembly 330 to be driven. Of course, in other embodiments, the blade 321, the receiving member 351 and the stirring member 354 may be driven independently by independent driving mechanisms, and may be specifically set according to practical requirements, which is not limited herein.

In alternative other embodiments, the function of ejecting the print 020 from the receiver 351 may be accomplished independently of the kick-out 354. Fig. 18 is a schematic diagram showing the overturning of the receiving member 351 according to another embodiment of the present application. As shown in fig. 18, in some embodiments, the receiver 351 may be configured to be reversible, and after the receiver 351 reaches the discharge level, its internal print 020 is poured out by turning the receiver 351. Optionally, the receiver assembly 350 may further include a flip assembly operable to drive the receiver 351 to flip at the outfeed position so that the printing element 020 received in the receiving space is poured out of the outfeed port 3511. The form of the overturning assembly can be set according to the requirement, for example, the overturning assembly is in transmission connection with the carrying piece 351, moves together with the carrying piece 351 and can drive the carrying piece 351 to overturn when the carrying piece 351 reaches the discharging level; or, the turnover component is arranged at the discharging position and does not move along with the receiving piece 351, the receiving piece 351 can rotate under the action of external force, and when the receiving piece 351 reaches the discharging position, the turnover component acts on the receiving piece 351 and applies force to the receiving piece 351 to enable the discharging hole 3511 of the turnover component to incline downwards.

The printer 010 according to the embodiment of the present application further includes a control mechanism, and the platform driving mechanism 800, the shovel driving assembly 330, the connector driving assembly 352, and the optical machine 610 are electrically connected to the control mechanism, so that corresponding operations are completed under the control of the control mechanism. In the present embodiment, the control mechanism needs to perform a corresponding control operation on the information on the acquired state of the specific structure, the position of the movement, and the like. Fig. 19 is a schematic diagram showing the distribution of the individual sensors of the shovel mechanism 300 according to an embodiment of the present application. As shown in fig. 19, specifically, the shovel mechanism 300 is provided with a first sensor 360, a second sensor 361, a receiving level sensor 362, and a kick-out completion sensor 363, each of which can be electrically connected to the control mechanism.

Among them, the first sensor 360 and the second sensor 361 may be used to detect two extreme positions of the blade 321. In this embodiment, the blade 321 moves linearly, and at two ends of the movement path, the blade 321 end position and the blade 321 initial position are respectively, and the first sensor 360 is configured to output a blade 321 end sensing signal to the control mechanism when the blade 321 reaches the blade 321 end position; the second sensor 361 is configured to output a blade 321 initial sensing signal to the control mechanism when the blade 321 reaches an initial position of the blade 321, and the blade 321 end sensing signal and the blade 321 initial sensing signal facilitate the control mechanism to obtain position information of the blade 321, thereby controlling the start and stop of the movement thereof. The end position of the blade 321 is located downstream of the initial position of the blade 321 in the direction in which the blade 3211 of the blade 321 faces, that is, the end position of the blade 321 is located in front of the blade 321 in the direction in which the blade 321 moves in the direction indicated by the arrow e in fig. 3, and the initial position of the blade 321 is located behind the blade 321 in the direction in which the blade 321 moves in which the blade 3211 moves forward in order to peel the printing element 020 from the forming stage 200.

It should be noted that, after the shovel is not yet performed, or after the shovel is performed once, the shovel driving assembly 330 may drive the shovel blade 321 to move to the initial position of the shovel blade 321 to wait for the next shovel. The initial position of the blade 321 is outside the area defined by the modeling platform 200 and the tray 700, so as not to affect the printing operation of the printer 010. And after the printer 010 finishes one-time printing, the shovel driving assembly 330 drives the shovel blade 321 to move between the forming platform 200 and the material tray 700 along the second direction close to the forming platform 200, and moves from one end of the forming platform 200 to the other end until the shovel blade 321 stops driving when moving to the end position of the shovel blade 321. When the shovel 321 is positioned at the end position of the shovel 321, the shovel 321 is indicated to be completed, and the control mechanism can control the shovel driving component to stop driving the shovel 321 to move continuously.

In this embodiment, the stirring element 354 has a stirring initial position and a stirring completion position, the stirring element 354 is magnetically connected with the receiving element 351 when located at the stirring initial position, the receiving element 351 is located at the receiving position, and the stirring element 354 can move to the stirring completion position after the printing element in the receiving element 351 is pulled out from the receiving element 351. The receiving level sensor 362 is configured to output a receiving sensing signal to the control mechanism when the kick-out member 354 reaches the kick-out initial position. It will be appreciated that after one printing operation, the material shifting member 354 is driven by the connector driving assembly 352, the connector 351 is driven by the magnetic attraction between the connector driving assembly and the connector 351 to move along the second direction between the forming platform 200 and the tray 700, and when the material shifting member 354 is detected to be in the initial material shifting position by the material receiving sensor 362, the control mechanism controls the connector driving assembly 352 to stop driving the material shifting member 354. When the kick-out member 354 reaches the kick-out initial position, it is indicated that the receiving member 351 is also at the receiving position and can receive the printing member 020 peeled off from the molding table 200. At this time, the control mechanism may further control the shovel driving assembly 330 to drive the shovel blade 321 to perform the shovel operation, and shovel away from the printing part 020 of the forming platform 200 so as to drop into the receiving part 351. It should be further noted that, to ensure that the receiving element 351 can receive the printing element 020 of the entire molding surface 210 of the molding platform 200, when the stirring element 354 is moved to the stirring initial position, i.e., when the receiving element 351 is located at the receiving position, the vertical projection of the space of the receiving element 351 for accommodating the printing element 020 on the molding surface 210 may cover the entire molding surface 210 or the area of the molding surface 210 for adhering the printing element, so that the printing element 020 peeled off from the molding platform 200 does not fall out of the receiving space of the receiving element 351.

The kick-out completion sensor 363 may be operable to output a kick-out completion sensing signal to the control mechanism when the kick-out member 354 reaches a kick-out completion position. Generally, after the shoveling of the shovel 321 and the receiving part 351 is completed, the receiving part driving assembly 352 drives the stirring part 354 to drive the receiving part 351 to move along the second direction towards a direction away from the forming platform 200 and the tray 700 until the receiving part 351 moves to the discharging position, and the stirring part 354 does not reach the stirring completion position at this time. As described above, when the receiving member 351 moves to the discharging position, the moving is stopped due to the limitation of the limiting member, and the ejecting member 354 overcomes the magnetic attraction between the receiving member 351 and continues to move, during the moving process, the ejecting member 354 gradually ejects the printing member 020 received by the receiving member 351 to the discharging hole 3511 until the ejecting member is moved to the ejecting position, and during the moving process, the printing member 020 ejected from the discharging hole 3511 can drop into the storing member 400.

In fig. 19, the kick-out member 354 is in the kick-out completion position, the receiving member 351 is in the discharge position, and the blade 321 is in the blade 321 end position.

In the embodiment of the present application, the first sensor 360, the second sensor 361, the receiving level sensor 362 and the kick-out completion sensor 363 may select a suitable type of sensor to detect whether the corresponding component is in place, for example, the above sensor may be a photoelectric sensor, an opposite-type sensor or a reflective sensor, and determine whether the corresponding component blocks the optical path by receiving the optical signal by the optical receiver, so as to determine whether the corresponding component is in place. Accordingly, the movable components of the connector assembly 350 and the shovel assembly 310 (such as the socket 351, the transmission block 339, or the slider 338) may be provided with a detecting member for blocking the optical path formed by the corresponding sensor after the movable components reach the corresponding positions. In alternative other embodiments, the sensor may also be a proximity switch or other mechanical sensor.

In an embodiment of the application, the carriage 351 also has a waiting position spaced from the receiving position, the waiting position in which the carriage 351 is located outside the printing area of the printer 010. The shovel mechanism 300 may further include a socket sensor 364, the socket sensor 364 for outputting a wait sensing signal when the socket 351 reaches the wait position. The connector drive assembly 352 may be used to drive the connector 351 between the outfeed position and the receiving position. In one embodiment, the waiting position is arranged between the discharge position and the receiving position; in another alternative embodiment, the waiting position coincides with the discharge position; of course, in other embodiments, the waiting position may also be located on the side of the discharge level remote from the receiving level. By setting the waiting position, the receiving member 351 can be made to wait for the receiving member at the waiting position in the printing process of the printing member; when printing of the printing member 020 is completed, the receiving member 351 is moved from the waiting position to the receiving position to receive the printing member 020 peeled off from the modeling stage 200.

In an embodiment of the present application, the storage member 400 may have a large capacity so as to be capable of storing a plurality of printing members 020 at a time. Further, a sensor may be provided in the printer 010 to detect whether the storage 400 is full. In this embodiment, the storage member 400 is provided with a full member sensor, which is electrically connected to the control mechanism, and the full member sensor is configured to output a full member sensing signal to the control mechanism when the storage member 400 is full. Specifically, the full member sensor may be a photo sensor disposed at the opening of the storage member 400, and forms an optical path at the opening of the storage member 400, and if the optical path is blocked for a long time, it is determined that the printed member 020 in the storage member 400 has been stacked at the opening of the storage member 400, so that it is possible to determine that the storage member 400 is full. In alternative embodiments, a gravity sensor may be provided to weigh the printed article 020 in the storage 400, and determine whether the storage 400 is full from the detected weight value.

In one embodiment, printer 010 may also include a pressure sensor, which may be disposed on modeling platform 200 and electrically coupled to the control mechanism. Of course, the pressure sensor may also be disposed on the blade 321, which is not limited herein. Further, a pressure sensor may be used to detect the pressure between the molding surface 210 of the molding table 200 and the blade 321. The pressure value between the molding surface 210 and the shovel blade 321 has guiding significance on shovel work, and equipment damage caused by overlarge pressure between the shovel blade 321 and the molding platform 200 can be avoided while the shovel work effect can be ensured.

With further reference to fig. 2 and 19, in one embodiment, the printer 010 may further include a print sensor 365, where the print sensor 365 may be disposed on the slide 337 and spaced from the blade 321, and may be mounted on the transmission block 339 and located on a side of the blade 321 near the blade 3211 so as to be located in front of a path of movement of the blade 321 during a start of a blade procedure of the blade 321 and movement of the blade 321 from the blade initial position toward the blade end position in the second direction, and to be located behind the path of movement of the blade 321 after completion of the blade 321 and movement of the blade 321 from the blade end position toward the blade initial position in the second direction.

The print sensor 365 may be a laser correlation sensor, and includes a laser emitting portion and a laser receiving portion disposed opposite to each other. Specifically, the laser emitting portion is mounted on a transmission block 339 at one end of the blade 321, and the laser receiving portion is mounted on the transmission block 339 at the other end of the blade 321. Specifically, the print sensor 365 can detect whether a print is on the molding surface 210 of the molding platform 200 or whether a print is on the area of the molding surface 210 corresponding to the path traversed by the print sensor 365 according to the condition of the laser light emitted by the laser light emitting unit received by the laser light receiving unit.

Specifically, after one printing is completed, the printing piece sensor 365 moves along with the sliding base 337 towards the forming platform 200 under the driving of the shovel driving assembly 330, and performs laser correlation detection in the process of moving from the initial position of the shovel 321 to the final position of the shovel 321. In the process, if the position of the printing piece, which is detected in the preset position of the molding surface, is not detected, the printing piece is judged to fall off, and at the moment, the control mechanism can control the printer to stop running and further send out fault reminding so that an operator can check in time. As will be readily appreciated, if a drop of print media occurs, the drop of print media may fall into tray 700, and if not cleaned in time to continue printing after the spade, damage to forming table 200 and/or tray 700 may result from the drop of print media in tray 700 as forming table 200 is pressed against tray 700.

Further, when the blade is finished and the blade 321 returns, the print sensor 365 can move towards the initial position of the blade and perform laser correlation detection in the process of moving to the initial position of the blade under the driving of the blade driving assembly 330. In this process, if it is detected that the molding surface 210 has a print, it is determined that the print is not completely shoveled, and at this time, the control mechanism may also control the printer to stop running, and may further issue a fault alert.

In this embodiment, the shovel assembly 310 further includes a shutter 326 (see fig. 1), wherein the shutter 326 is disposed above the initial position of the shovel (i.e., the side of the initial position of the shovel away from the base plate 500) to block the shovel 321 at the initial position of the shovel. Thus, the operator can be prevented from touching the shovel blade 321 positioned at the initial position of the shovel blade by mistake, and the personal safety of the operator is ensured.

Fig. 20 is a schematic diagram illustrating an arrangement of an illumination mechanism 600 according to an embodiment of the application. In the embodiment of the present application, the printer 010 is provided with the substrate 500 for carrying the printing material, and the illumination mechanism 600 is used for curing the printing material by illumination. Specifically, the substrate 500 may be provided with a light-transmitting area 510, the illumination mechanism 600 may include a mounting assembly 630 and a light machine 610, the molding platform 200 and the light machine 610 are respectively located at two opposite sides of the substrate 500, the light machine 610 is fixed to the substrate 500 through the mounting assembly 630, and the light-emitting direction of the light machine 610 faces the light-transmitting area 510. In this embodiment, the substrate 500 is disposed horizontally, the molding platform 200 is located above the substrate 500, the optical engine 610 is located below the substrate 500, and the light emitting direction is upward. In an embodiment, the number of light machines 610 may be two, the two light machines 610 are arranged side by side in the horizontal direction, and the light emitted by the two light machines 610 can be spliced into a larger width at the light-transmitting area 510. The light emitted by the light machine 610 passes through the transparent area 510 and then acts on the printing material to cure and shape the printing material.

In this embodiment, the position of the light engine 610 relative to the substrate 500 is adjustable, and the mounting assembly 630 of the illumination mechanism 600 includes a fixing plate 620, a mounting back plate 631, a first adjusting plate 632, a second adjusting plate 633 and a third adjusting plate 634. Wherein the fixing plate 620 is connected to the base plate 500 and extends downward. The mounting back plate 631 is attached to the fixing plate 620 and is positionally fixed with respect to the base plate 500. The mounting back plate 631 is provided with a bar-shaped hole extending in a first direction (vertical direction in this embodiment). The first adjustment plate 632 is fixed to the mounting backplate 631 by the engagement of the bolt with the bar-shaped hole, and the bolt is adjustable in position in the direction in which the bar-shaped hole extends within the space defined by the bar-shaped hole, so that the position of the first adjustment plate 632 relative to the mounting backplate 631 in the first direction is adjustable. The first adjustment plate 632 is perpendicular to the extension direction of the mounting back plate 631 and the bar-shaped hole, and in this embodiment, the first adjustment plate 632 is in a substantially parallel state with the base plate 500, and the height of the first adjustment plate 632 can be adjusted through the bar-shaped hole. The second adjusting plate 633 is disposed on the first adjusting plate 632 in a stacked manner, and the second adjusting plate 633 is attached to the first adjusting plate 632 and is adjustable in position on the surface of the first adjusting plate 632, so that the second adjusting plate 633 can be adjusted in position in a horizontal direction and rotated relative to the first adjusting plate 632, so that the optical bench 610 can be adjusted in position in a second direction and/or a third direction and rotated about an axis parallel to the first direction by the second adjusting plate 633. The third adjusting plate 634 is stacked on the second adjusting plate 633, and the optical bench 610 is connected to the third adjusting plate 634. The inclination angle of the third adjusting plate 634 with respect to the second adjusting plate 633 is adjustable to adjust the angle of rotation of the optical bench about an axis parallel to the second direction and/or the third direction. The first direction, the second direction and the third direction are perpendicular to each other.

In the present embodiment, the height position (i.e., the position in the first direction) of the optical machine 610 is adjustable by the first adjusting plate 632, the horizontal position (i.e., the second direction and the third direction) of the optical machine 610 is translationally adjustable by the second adjusting plate 633 and is rotatable about an axis parallel to the first direction, and the inclination angle (i.e., the rotation about an axis parallel to the second direction and the third direction) of the optical machine 610 with respect to the vertical direction is adjustable by the third adjusting plate 634. It can be seen that the illumination mechanism 600 can achieve six degrees of freedom adjustment of the light engine 610.

Specifically, the mounting assembly 630 includes three adjustment screws and at least one fastening screw, and the third adjustment plate 634 is connected to the second adjustment plate 633 by the adjustment screws and the fastening screws; the adjusting screw and the fastening screw serve to provide forces in opposite directions to the third adjusting plate 634 to lock the position of the third adjusting plate 634 with respect to the second adjusting plate 633. It will be appreciated that the three points define a plane, so that the three adjustment screws may be brought to a defined inclination by abutting or pulling the third adjustment plate 634. However, the third adjusting plate 634 cannot be stably limited only by three adjusting screws, for example, the third adjusting plate 634 is lifted by three adjusting screws to have a certain inclination angle, but the third adjusting plate 634 is not limited in the upward direction. Accordingly, a tightening screw is required to provide a tightening force to the third adjustment plate 634, which is opposite to the force provided by the adjustment screw, thereby stabilizing the third adjustment plate 634.

Fig. 21 is a schematic view of a second regulating plate 633 in an embodiment of the present application. Optionally, one of the second adjusting plate 633 and the third adjusting plate 634 is provided with three non-collinear adjusting screw holes 6331, and the adjusting screw is engaged with the adjusting screw hole 6331 and abuts the other of the second adjusting plate 633 and the third adjusting plate 634; one of the second and third adjustment plates 633 and 634 is provided with a fastening screw hole, and the other is provided with a through hole corresponding to the fastening screw hole, and the fastening screw is engaged with the fastening screw hole after passing through the through hole. In particular, in this embodiment, as shown in fig. 20, three non-collinear adjustment screw holes 6331 are provided in the second adjustment plate 633, and adjustment screws pass through the adjustment screw holes 6331 of the second adjustment plate 633 and then abut against the third adjustment plate 634. The third adjusting plate 634 is provided with three non-collinear fastening screw holes (not shown), the second adjusting plate 633 is provided with three fastening through holes 6332 corresponding to the fastening screw holes, the fastening screws are screw-fitted with the fastening screw holes after passing through the fastening through holes 6332, and the three fastening screws and the three adjusting screws define the position of the third adjusting plate 634 together.

Further, a locking screw hole 6333 is provided on the second regulation plate 633, and the second regulation plate 633 is connected to the first regulation plate 632 through the locking screw hole 6333. In this embodiment, the third adjusting plate 634 may be disposed in a mating hole connected to the optical engine 610; the first adjusting plate 632 should also be provided with a hole site connected to the second adjusting plate 633, and the hole site on the first adjusting plate 632 should have a certain adjustment amount so that the second adjusting plate 633 can translate and rotate on the first adjusting plate 632 to a certain extent. In addition, corresponding escape holes should be provided on the first adjustment plate 632 to expose the adjustment screws and the fastening screws, so that the position of the third adjustment plate 634 with respect to the second adjustment plate 633 can be conveniently adjusted.

In this embodiment, the middle portion of the second adjusting plate 633 is further provided with two transmission holes 6334, and the two transmission holes 6334 are inserted by two external adjusting members 3232, and the two adjusting members 3232 can provide torque to the second adjusting plate 633, so that it rotates on the first adjusting plate 632, and rotation about an axis parallel to the first direction is achieved.

In the embodiment of the present application, the 3D printer 010 may further include a human body sensing mechanism and an operating mechanism 110 (see fig. 1) electrically connected to the control mechanism, wherein the human body sensing mechanism is configured to output a human body sensing signal to the control mechanism when detecting that a human body exists in a preset area; the control mechanism is arranged to activate or wake up the operating mechanism 110 upon receipt of a human perception signal. The operating mechanism 110 comprises at least one of an illumination mechanism, a display screen, a touch screen and the like, and when the operating mechanism 110 is the touch screen or the display screen, the user walks in to be detected and can be automatically lightened, so that the operation of the user is facilitated. Of course, it may be set that the user enters sleep after printing is finished for a certain period of time, and the user does not wake up the operating mechanism 110 after approaching, so that false sensing is avoided. Alternatively, the body sensing mechanism may comprise a 5.8GHz microwave radar. Because WIFI, bluetooth, IOT etc. can occupy 2.4GHz, make 2.4GHz easily disturbed, consequently adopt 5.8 GHz's microwave radar, stable and the cost is lower.

FIG. 22 is a schematic diagram showing a state before a tray is fixed in an embodiment of the present application; fig. 23 is a schematic view of a tray according to an embodiment of the application. Referring to fig. 22 and 23, further, the substrate 500 is provided with a clearance through hole 530. The 3D printer further includes a rolling member 543 and an elastic floating member 544. The rolling element 543 is arranged at the position of the avoidance through hole 530 in a lifting manner, the rolling element 543 has a lifting position and a descending position relative to the base plate 500, when the tray 700 is separated from the base plate 500, namely when the tray 700 is not fixed on the base plate 500, the rolling element 543 is in the lifting position, the top of the rolling element 543 is higher than the upper surface of the base plate 500, and when the tray 700 is fixed on the base plate 500, namely when the tray 700 is fixed on the base plate 500, the rolling element 543 is in the descending position, and the top of the rolling element 543 abuts against the tray 700; the resilient float 544 serves to create a tendency for the rolling element 543 to move toward the raised position.

When the tray 700 is not fixed on the base plate 500, the rolling member 543 is at a raised position under the action of the elastic floating member 544, and is in a free state; when the tray 700 is fixed on the base plate 500, the rolling element 543 is at a lowered position under the pressing action of the tray 700, meanwhile, the elastic floating element 544 is compressed, and the reaction force of the elastic floating element 544 can enable the rolling element 543 to abut against the bottom plate of the tray 700, so as to fix the tray 700. Because the rolling piece 543 is used for supporting the material tray 700, rolling friction is adopted between the rolling piece 543 and the material tray 700, so that abrasion of the rolling piece 543 can be effectively reduced, and the service life of the rolling piece 543 is prolonged.

Specifically, the lower side of the substrate 500 is provided with a supporting member 540 and a guiding shaft 545, the guiding shaft 545 is connected to the substrate 500 and penetrates through the supporting member 540, so that the supporting member 540 can be lifted along the guiding shaft 545, and the rolling member 543 is disposed on the supporting member 540. The support 540 includes a support plate 541 and a plurality of brackets 542 provided on the support plate 541, and a guide shaft 545 is penetrated through the support plate 541 so that the support plate 541 can be lifted and lowered along the guide shaft 545. The rolling member 543 may be a roller, and is mounted on the bracket 542 through a rotation shaft. In other embodiments, the rolling element 543 may be a bearing or a universal ball.

In the present embodiment, a guide pressing block 550 is provided at the upper side of the base plate 500, and the guide pressing block 550 is used to guide the movement of the tray 700 on the base plate 500 and to clamp the tray 700 together with the rolling member 543.

When the tray 700 needs to be fixed on the substrate 500, the tray 700 is pushed between the guide pressing block 550 and the plurality of rolling members 543 from left to right, the rolling members 543 move downward under the pressure of the tray 700, gradually move from the ascending position to the descending position, and after the tray 700 is pressed onto all the rolling members 543, the entire tray 700 is clamped between the guide pressing block 550 and the corresponding rolling members 543. When the tray 700 moves in place, the plurality of rolling members 543 are all at the lowered position and abut against the bottom of the tray 700, and the tray 700 is fixed. The plurality of resilient float members 544 are now all compressed by the carrier 541.

In the related art, the cam is adopted to make the tray in contact with the tray, that is, the contact point between the cam and the tray is sliding friction, in contrast, in the embodiment, the rolling element 543 is adopted to make the tray 700 in contact with the tray 700, that is, the contact point between the cam and the tray 700 is changed from sliding friction to rolling friction, so that the wear speed of the rolling element 543 can be effectively reduced, the service life of the rolling element 543 is prolonged, and the maintenance cost of equipment is reduced. In addition, the rolling member 543 may also serve as a guide to effectively guide the moving direction of the tray 700, so that the tray 700 may be stably moved to a predetermined position on the substrate 500 for fixing.

Fig. 24 is a schematic view of an automatic liquid feeding mechanism according to an embodiment of the present application at a first view angle. Referring to fig. 24, the printer 010 according to the embodiment of the present application further includes an automatic feeding mechanism 900, and the automatic feeding mechanism 900 is used for implementing a function of automatically feeding printing material into the tray 700. The automatic charging mechanism 900 includes a transfer charging assembly 910, a charging drive assembly 940, and a storage mechanism 950. FIG. 25 is a schematic diagram illustrating assembly of a transfer charging assembly of an automatic charging mechanism according to an embodiment of the present application; fig. 26 is an exploded view of a relay charging assembly of an automatic charging mechanism in accordance with one embodiment of the present application. Referring to fig. 25 and 26, the transfer liquid feeding assembly 910 includes a feeding box 920 and a locking structure 930, the feeding box 920 includes a feeding box body 921 and a liquid outlet portion 922 for feeding the tray 700, the liquid outlet portion 922 is communicated with the feeding box body 921, the feeding box body 921 is used for storing the printing material poured in by the storage mechanism 950, and the printing material stored in the feeding box body 921 can flow to the tray 700 through the liquid outlet portion 922. The locking structure 930 is used for opening or blocking the liquid outlet of the liquid outlet 922, and the liquid feeding driving assembly 940 can drive the locking structure 930 to open or block the liquid outlet 922 according to the actual liquid level of the tray 700. Under the condition that the printing material in the feeding box body 921 is guaranteed to be in a full-load state, the printing material is firstly added into the feeding box 920 of the transfer liquid adding assembly 910 through the storage mechanism 950, the printing material is led to the material tray 700 through the liquid outlet 922, the feeding speed of the feeding box 920 in the material tray 700 can be guaranteed to be in a stable state, and further the stability of controlling the feeding speed is realized.

It can be appreciated that after the transfer liquid feeding assembly 910 is applied to the 3D printer 010, the printing material in the storage mechanism 950 flows into the feeding box body 921 first and is not directly led to the tray 700, so that the problem that the feeding speed of the printing material in the storage mechanism 950 cannot be stably controlled due to gradual change of the feeding speed after consumption is avoided, and thus the problem that the printing material in the tray 700 is insufficient or too much due to unstable feeding speed can be avoided, and further the problem that 3D printing fails or the printing material is wasted can be caused.

In one embodiment, the locking structure 930 comprises a blocking member 931 and a resilient member (not shown in the drawings); the blocking member 931 is movable along the axial direction of the liquid outlet portion 922; the elastic member acts on the blocking member 931 to make the blocking member 931 abut against the liquid outlet of the liquid ejection portion 922 according to the elastic force of the elastic member.

The blocking member 931 may be any structure capable of blocking the liquid outlet, such as a baffle, a cork, etc. The relative positional relationship and the connection relationship of the blocking piece 931 and the charging box 920 may be any as long as it is possible to realize that the blocking piece 931 can move in the axial direction of the liquid outlet 922. For example, a guide passage may be provided in the axial direction of the liquid outlet 922, and the blocking piece 931 may move in the guide passage so as to be movable in the axial direction of the liquid outlet 922. The blocking piece 931 is under the elastic force of the elastic piece, so that the blocking piece 931 is propped against the liquid outlet, and the liquid outlet is blocked. The arrangement positions and the number of the elastic members are not particularly limited, as long as elastic force toward the liquid outlet can be applied to the blocking member 931. Further, the spring force may be generated by compression of the spring or by extension of the spring.

In one particular example, the locking structure 930 further includes a slider 932. The blocking member 931 is slidably coupled to the slider 932, and the slider 932 is fixedly coupled to an outer surface of the liquid outlet 922.

Specifically, the axial direction of the slider 932 is parallel to the axial direction of the liquid outlet 922. The slider 932 is fixed to an outer surface of the liquid outlet 922. For example, the slider 932 may be connected to the outer surface of the liquid outlet 922 through two fixing brackets, so as to be fixed to the outer surface of the liquid outlet 922. Further, the blocking member 931 may be sleeved on the sliding member 932 to move along the axial direction of the liquid outlet 922.

The liquid feeding driving assembly 940 is configured to drive the blocking member 931 to slide relative to the sliding member 932, and the elastic member is connected to both the feeding box 920 and the blocking member 931, in other words, the feeding box 920 and the blocking member 931 are connected to the elastic member, and the blocking member 931 blocks the liquid outlet 922 through a preset elastic force of the elastic member, which is understood that in this embodiment, the blocking member 931 blocks the liquid outlet 922 through a preset elastic force of the elastic member, that is, a liquid outlet of the liquid outlet 922 is in a normally closed state.

The liquid feeding driving assembly 940 can open or close the liquid outlet of the liquid outlet 922 according to the actual liquid level driving locking structure 930 of the tray 700, for example, when the automatic liquid feeding mechanism 900 in this embodiment is applied to the 3D printer 010, the printer 010 detects that the liquid level of the printing material on the tray 700 is lower than the preset liquid level, and then the liquid feeding driving assembly 940 can drive the sealing member 931 to keep away from the liquid outlet 922, so that the printing material passes through the liquid outlet 922 to the tray 700, and when the liquid level of the printing material in the tray 700 is higher than or equal to the preset liquid level, the liquid feeding driving assembly 940 acts to make the sealing member 931 approach the liquid outlet 922 and close the liquid outlet of the liquid outlet 922 under the action of the elastic member.

In this embodiment, the liquid feeding driving assembly 940 is an electromagnet push rod, and specifically, when the electromagnet push rod is energized, the push rod of the electromagnet push rod can extend or retract to make the blocking member 931 far away from or close to the liquid outlet portion 922, so as to open or block the liquid outlet portion 922. When the electromagnet push rod is in the power-off state, the push rod of the electromagnet push rod is in the retraction state, so that the blocking piece 931 blocks the liquid outlet 922 under the action of the preset elastic force of the elastic piece. Therefore, when the automatic liquid adding mechanism 900 is applied to the 3D printer 010, in the power-off state, the push rod of the electromagnet push rod is retracted, and the liquid outlet portion 922 is in the blocking state, so that liquid is prevented from being added to the tray 700 in the power-off state, and waste of printing materials is avoided.

Of course, in other embodiments, the liquid feeding driving assembly 940 is not limited to the electromagnet push rod, and the liquid feeding driving assembly 940 is not limited to the liquid feeding driving assembly 940 as long as the liquid feeding driving assembly 940 can drive the blocking member 931 away from or close to the liquid outlet portion 922 in the power-on state to open or block the liquid outlet portion 922, and can ensure the liquid outlet portion 922 to be in the blocking state in the power-off state.

The liquid outlet portion 922 includes a liquid outlet pipe 923 connected to the feeding box body 921, and a first fixing bracket 924 disposed on a side wall of the liquid outlet pipe 923, the sliding element 932 is fixedly connected to the first fixing bracket 924, the blocking element 931 includes a supporting portion 9313 and a baffle 9311 connected to the supporting portion 9313, the baffle 9311 is used for blocking the liquid outlet pipe 923, and the supporting portion 9313 and the baffle 9311 are disposed on two sides of the first fixing bracket 924 respectively; in a specific example, the first fixing bracket 924 is disposed on an outer sidewall of the liquid outlet pipe 923. The two sides of the first fixing bracket 924 refer to two sides along the axial direction of the liquid outlet portion 922 along the first fixing bracket 924. The transfer liquid feeding component 910 further includes a fastener, in this embodiment, the fastener is a bolt 933, the supporting portion 9313 is connected with the first fixing support 924 through the fastener (i.e. the bolt 933), and the elastic member is sleeved on the fastener, and two ends of the elastic member are respectively supported on the first fixing support 924 and the supporting portion 9313, and when the elastic member is in a compressed state, the baffle 9311 is under the elastic force of the elastic member to block the liquid outlet of the liquid outlet pipe 923.

In this embodiment, a sealing plug 9314 is further disposed on a side of the baffle 9311 near the liquid outlet pipe 923, and the sealing plug is used for sealing the liquid outlet pipe 923, so as to further enhance the reliability of the sealing plug 931 for sealing the liquid outlet pipe 923.

With continued reference to fig. 24, the above-mentioned transfer liquid feeding assembly 910 further includes a transmission rod 934, where the transmission rod 934 is used for pushing the supporting portion 9313 according to an external force, so as to keep the baffle away from the liquid outlet. The transmission rod 934 may be any transmission rod in any structure in the art. In a specific example, the transmission rod 934 is a rotation rod, the rotation center of the rotation rod is used for being rotationally connected with a frame (not shown in the drawing) of the 3D printer 010, one end of the rotation rod is used for receiving an external driving force, so that the other end of the rotation rod rotates to push the abutting portion 9313, so that the baffle 9311 is far away from the liquid outlet pipe 923, it can be appreciated that in this embodiment, the electromagnet push rod can drive one end of the transmission rod 934 to rotate, and then drive the other end to rotate, so as to push the abutting portion 9313, so that the baffle 9311 is far away from the liquid outlet of the liquid outlet pipe 923.

Specifically, when the liquid feeding driving assembly 940, that is, the push rod of the electromagnet push rod in this embodiment is pushed out, one end of the transmission rod 934 is pushed to rotate, the other end of the transmission rod 934 rotates along with the end, and then the abutting part 931 is pushed to slide the blocking piece 931 on the sliding piece 932 to move the blocking piece 931 away from the liquid outlet pipe 923, so as to open the liquid outlet pipe 923, when the push rod of the electromagnet push rod is retracted, one end of the transmission rod 934 rotates reversely, the other end rotates along with the other end, and under the action of the preset elastic force of the elastic piece, the blocking piece 931 moves towards the direction close to the liquid outlet pipe 923 until the liquid outlet of the liquid outlet pipe 923 is blocked.

In other embodiments, the liquid outlet pipe 923 is further provided with a rotating shaft and a connecting rotating plate, the axis of the rotating shaft is perpendicular to the axis of the liquid outlet pipe 923, the rotating shaft is disposed on the first fixing support 924 and is rotationally connected with the connecting rotating plate, and the connecting rotating plate is used for rotating according to external acting force so as to push the blocking piece to be away from the liquid outlet. Further, the connection rotating plate is provided with a first connection portion and a second connection portion, and the first connection portion is used for receiving external driving force, namely receiving driving force of the liquid adding driving assembly 940, so as to drive the second connection portion to move to push the baffle 9311 away from the liquid outlet pipeline 923. It can be appreciated that the liquid feeding driving assembly 940 can make the second connection portion drive the connection swivel plate to rotate through the rotation shaft, and then make the baffle 9311 far away from or near to the liquid outlet pipe 923 through the first connection portion, so as to open or block the liquid outlet pipe 923.

In still other embodiments, the liquid feeding driving assembly 940 may further move the baffle 9311 away from or close to the liquid outlet channel 923 by other mechanical structures, which are not limited to the above-mentioned arrangement, as long as the mechanical structure can convert the driving force of the liquid feeding driving assembly 940 into the force of the baffle 9311 away from or close to the liquid outlet channel 923, and is not limited herein.

Further, the side wall of the liquid outlet pipe 923 further includes a second fixing bracket 925, the second fixing bracket 925 is disposed on the side wall of the liquid outlet pipe 923, and the first fixing bracket 924 and the second fixing bracket 925 are disposed on two sides of the supporting portion 9313 respectively, specifically on two sides of the supporting portion 9313 along the axial direction of the liquid outlet portion respectively. The blocking piece 931 further includes a connection plate 9312; the connecting plate 9312 is connected with the abutting part 9313 in an included angle, the connecting plate 9312 is connected with the baffle 9311 in an included angle, and the first fixing bracket 924 and the second fixing bracket 925 are fixedly connected with the sliding piece 932; the abutment 9313 is slidably coupled to the slider 932. The second fixing support 925 is matched with the first fixing support 924, so that the sliding piece 932 and the liquid outlet pipe 923 are more stable. In a specific example, the second fixing bracket 925 is disposed on an outer sidewall of the liquid outlet pipe 923.

In the present embodiment, the sliding member 932 is a sliding rod, the elastic member is a spring (not shown), the fastening member is a bolt 933, the bolt 933 and the sliding rod are all disposed through the first fixing bracket 924, the supporting portion 9313 and the second fixing bracket 925, and the spring is sleeved on the bolt 933. It can be understood that the first fixing support 924 and the second fixing support 925 are fixedly connected with the sliding rod, the supporting portion 9313 is located between the first fixing support 924 and the second fixing support 925, the baffle plate 9311 seals the liquid outlet pipe 923, the supporting portion 9313 and the baffle plate 9311 are slidably matched with the sliding rod, the bolt 933 is simultaneously inserted into the baffle plate 9311, the second fixing support 925, the supporting portion 9313 and the first fixing support 924 to achieve connection of the bolt 933, and two ends of the spring are respectively supported by the first fixing support 924 and the supporting portion 9313. Thereby realizing that the baffle 9311 blocks the liquid outlet pipe 923 so that the liquid outlet pipe 923 is in a normally closed state. The number of the elastic members and the bolts is not particularly limited, and may be two or more.

In some other embodiments, the locking structure 930 further includes a second baffle and a second elastic member connected to each other, where one end of the second elastic member abuts against the second baffle and the other end abuts against the blocking member. And the second elastic piece is propped against the blocking piece with preset elastic force, the second baffle is positioned on one side of the blocking piece far away from the liquid outlet part, and the second baffle is connected with the liquid outlet part. The second elastic member in this embodiment is used for distinguishing from the elastic members in the other embodiments, and the second baffle is used for distinguishing from the baffles in the other embodiments.

Specifically, one end of the second elastic member abuts against the second baffle, the other end abuts against the baffle, the second elastic member abuts against the baffle with a preset elastic force, so that the baffle is given to a force of the liquid outlet pipeline 923, the second baffle is located on one side of the baffle away from the liquid outlet pipeline 923, and the second baffle is connected with the liquid outlet pipeline 923. It can be understood that the baffle 9311 not only makes the baffle 9311 block the liquid outlet pipe 923 by the preset elastic force applied by the elastic member, but also presses the baffle 9311 to the nozzle of the liquid outlet pipe 923 by the preset elastic force of the second elastic member so that the tightness between the baffle 9311 and the liquid outlet pipe 923 is better.

The liquid feeding driving assembly 940 is electrically connected with a controller and at least one of a liquid level sensor, a position sensor and a gravity sensor, wherein the controller is used for controlling the liquid feeding driving assembly 940 to act. Alternatively, the controller may be the aforementioned control mechanism, may be integrated into the control mechanism of the printer 010, or may be a structure specifically for controlling the liquid charging drive assembly 940.

The level sensor is used to detect the actual level of the tray 700 of the 3D printer 010 and transmit it to the controller, and in one specific example, the priming drive assembly 940 drives the baffle 9311 away from the tapping channel 923 when the level sensor detects that the actual level of the tray 700 is below a preset level. The liquid level sensor can specifically comprise any one of the following sensors: impedance sensors, capacitive sensors, and laser sensors. The gravity sensor is used to detect the actual weight of the storage mechanism 950.

Fig. 27 is a schematic view of an automatic liquid feeding mechanism according to an embodiment of the present application at a second view angle. Referring to fig. 27, in this embodiment, the feeding cassette 920 further includes a fool-proof member 926, and the fool-proof member 926 is disposed in the receiving cavity of the feeding cassette body 921. Reservoir 950 includes a check valve 952 and a reservoir 951 in communication with a fluid inlet of check valve 952. When the transfer liquid feeding assembly 910 is assembled to the printer 010, the first height of the lower bottom surface of the storage mechanism 950 of the printer 010 is smaller than the second height of the end of the fool-proof member 926 away from the feeding box body 921, and the end of the fool-proof member 926 away from the feeding box body 921 is located in the check valve 952. Specifically, one end of the fool-proof member 926 may extend into the storage mechanism 950, which may be any result that can achieve the above-described effects. In this embodiment, the fool-proof member 926 includes a positioning hole 9261 and a positioning pin 9262, the positioning hole 9261 is connected with the positioning pin 9262, and the positioning hole 9261 is disposed in the accommodating cavity of the charging box body 921; the positioning pin 9262 has a first end disposed in the positioning hole 9261 and a second end extending from the liquid outlet of the check valve 952 into the inner space of the check valve 952. The bottom of the check valve 952 of the printer 010 is lower than the end of the fool-proof member 926 far from the feeding box 920, that is, the end of the positioning pin 9262 far from the feeding box 920 is higher than the bottom of the check valve 952, so that the transfer liquid feeding assembly 910 is prevented from being taken out without removing the storage mechanism 950, in other words, when the storage mechanism 950 is mounted to the printer 010, the storage mechanism 950 is connected with the check valve 952, the bottom of the check valve 952 is lower than the end of the positioning pin 9262 far from the feeding box 920, the transfer liquid feeding assembly 910 is limited to be moved out of the printer 010, that is, when the transfer liquid feeding assembly 910 is horizontally loaded into the 3D printer 010, the end of the check valve 952 is lower than the end of the positioning pin 9262 far from the feeding box 920, and therefore, when the storage mechanism 950 is not moved out of the 3D printer 010, the operator cannot move out of the transfer liquid feeding assembly 910, and the printer can play a fool-proof role.

It can be appreciated that, in order to install the check valve 952 and the liquid storage bottle 951,3D, the printer 010 is further provided with an installation seat for installing the check valve 952, in this embodiment, after the check valve 952 is assembled with the liquid storage bottle 951, when the check valve 952 is assembled on the installation seat, the positioning pin 9262 can push up the valve body of the check valve 952, so as to open the passage of the storage mechanism 950 to the feeding box 920, and after the storage mechanism 950 is removed, the valve body is closed, so as to prevent liquid leakage. Further, after the positioning pin 9262 pushes the valve body, when the liquid level in the feeding box body 921 passes through the check valve 952, the printing material in the liquid storage bottle 951 will not continuously flow downwards into the feeding box body 921 due to gravity.

FIG. 28 is a flow chart of a 3D printing method according to an embodiment of the present application; fig. 30 is a schematic diagram of a shovel mechanism 300 according to an embodiment of the present application in different orientations at each node of the shovel process. Referring to fig. 28 and fig. 30 together, the embodiment of the present application further provides a 3D printing method, which can be applied to the 3D printer 010 provided by the embodiment of the present application. The 3D printing method may include:

step S100, the control adapting piece moves to the receiving position.

In an embodiment of the present application, the receiver 351 may be in a waiting position, as shown in the first step of fig. 30, when the printer 020 has not been finished printing. At this time, the receiver 351, the kick-out member 354, and the blade 321 are located outside the printing area of the printer 010, so that the printing work is not affected. After printing is completed, the control mechanism may control the blade drive assembly 330 to drive the carriage 351 to a receiving position (as shown in the second step of fig. 30) to receive the print member 020 that has fallen from the forming surface 210. In this embodiment, the receiving member 351 may be moved to the receiving position as a precondition for starting the shovel, and whether the receiving member 351 is moved to the receiving position may be judged by the receiving position sensor 362 detecting whether the stirring member 354 reaches the initial position of the stirring member 354.

And step S200, controlling the forming platform and the shovel blade to approach each other, and acquiring the pressure between the shovel blade and the forming surface.

Before the spade, in addition to moving the receiving element 351 to the receiving position ready for receiving, the spade blade 321 needs to be attached to the molding surface 210 in preparation for the spade blade 321 to slide on the molding surface 210. Taking the printer 010 provided by the embodiment of the application as an example, the control mechanism can control the platform driving mechanism 800 and the shovel driving assembly 330 to respectively drive the forming platform 200 and the shovel 321 to move so as to achieve mutual approaching. In some other embodiments, one of them may be controlled to move and the other to rest, such as controlling the blade 321 to approach the forming table 200. In this embodiment, since the forming stage 200 moves in the first direction, the blade 321 moves in the second direction, and the first direction is perpendicular to the second direction, and the first direction is the vertical direction, the forming stage 200 and the blade 321 approach each other in such a way that the blade 321 moves downward of the forming stage 200, and the forming stage 200 moves downward.

As shown in fig. 29, in order to make the forming table 200 more securely contact and press with the blade 321, the step S200 may optionally include the steps of:

Step S210, controlling the forming platform and the shovel blade to approach each other in a first movement mode;

step S220, before the shovel blade is contacted with the molding surface, the molding platform and the shovel blade are controlled to approach each other in a second movement mode, and the pressure between the shovel blade and the molding surface is continuously acquired.

Wherein, the approaching speed of the forming platform 200 and the shovel blade 321 in the second movement mode is smaller than that of the forming platform 200 and the shovel blade 321 in the first movement mode. Therefore, the first movement modes are close to each other, so that the first movement modes have higher speed, rapid movement in place can be realized, and the working efficiency is improved. However, too fast approach can easily cause the blade 321 to strike the forming platform 200, resulting in equipment damage, so before the blade 321 contacts the forming surface 210, the forming platform 200 and the blade 321 are controlled to approach each other in a second movement mode, at this time, a smaller approach speed is provided, under the second movement mode, the pressure between the blade 321 and the forming surface 210 is continuously obtained, the slower approach speed can ensure that the pressure detection is more accurate, and after the pressure reaches a threshold value, the relative movement of the blade 321 and the platform can be stopped in time, so as to prevent the blade 321 from being damaged due to too high pressure between the two.

Further, the step of controlling the forming platform 200 and the blade 321 to approach each other in the first movement mode may specifically include:

the blade 321 is controlled to move from the initial position of the blade 321 to the blade pressing position, and the forming platform 200 is controlled to move towards the blade 321 at a first speed along a first direction. Wherein the pressing blade is located at one side of the molding platform 200 in the first direction and facing the tray 700.

In this embodiment, since the initial position of the blade is not located below the forming stage 200, it is necessary to move the blade 321 to the blade pressing position, i.e., below the stage, and then wait for the forming stage 200 to descend. Alternatively, the printer 010 may include a sensor for detecting whether the blade 321 reaches the pressing position, which may be a photo sensor, and the blade driving assembly 330 is controlled to stop driving when the movement of the blade 321 to the pressing position is detected by the sensor. After the blade 321 is moved to the blade pressing position, the modeling platform 200 is controlled to descend in a first direction (i.e., a vertical direction in this embodiment), or the modeling platform 200 is controlled to descend during the movement of the blade 321 to the blade pressing position. Further, the step of controlling the forming platform 200 and the blade 321 to approach each other in the second movement mode may specifically include: the modeling platform 200 is controlled to move in a first direction toward the blade 321 at a second speed, where the second speed is less than the first speed.

In an alternative embodiment of the present application, before the step of controlling the modeling platform 200 and the blade 321 to approach each other in the first motion mode, the 3D printing method may further include: the forming platform 200 is controlled to move to a platform initial position, wherein the platform initial position is an extreme position of the forming platform 200, which is farthest from the shovel 321 in the first direction. In this embodiment, the initial position of the platform is the upper limit position of the molding platform 200. This position is the position where the modeling platform 200 is lifted from the tray 700 after a single print is completed.

In one embodiment, the step of controlling the forming table 200 to move toward the blade 321 at a first speed along a first direction may specifically include: the forming platform 200 is controlled to move towards the shovel blade 321 at a first speed along a first direction, wherein the first distance is smaller than the distance between the forming platform 200 and the shovel blade 321 in the first direction when the forming platform is located at the initial platform position, namely smaller than the distance between the initial platform position and the pressing blade position in the first direction. The first distance is a preset distance, and when the platform driving mechanism 800 drives the forming platform 200 to descend from the initial position of the platform by the first distance, it means that the platform reaches a position where the platform needs to be switched to the second speed, and at this time, the descending speed is switched, that is, the platform is switched to the second movement mode.

In another embodiment, the step of controlling the forming table 200 to move toward the blade 321 at a first speed along a first direction specifically includes: controlling the forming platform 200 to move towards the shovel 321 at a first speed along a first direction, and detecting whether the forming platform 200 reaches a speed change position, wherein the speed change position is positioned between the shovel 321 and a platform initial position; when it is determined that the modeling platform 200 has reached the speed change position, the modeling platform 200 is controlled to end moving toward the blade 321 at the first speed. Alternatively, the printer 010 may include a sensor for outputting a corresponding sensing signal to the control mechanism after the modeling platform 200 is moved to the variable speed position, and the control mechanism may control the modeling platform 200 to end moving toward the blade 321 at the first speed based on the sensing signal. Controlling the forming table 200 to end moving toward the blade 321 at a first speed may include controlling the forming table 200 to pause moving waiting for the next stage to move toward the blade 321 at a second, slower speed; or directly control the moving speed of the modeling platform 200 to switch to the second speed. The speed change position may be a position where the molding table 200 moves a predetermined distance at a first speed.

And step S300, stopping the forming platform and the shovel blade from approaching each other when the pressure between the shovel blade and the forming surface reaches a pressure threshold value.

In the process of descending the forming platform 200, the pressure sensor continuously detects the pressure between the shovel blade 321 and the forming surface 210, if the pressure is detected to reach the pressure threshold value, the pressure sensor means that enough pressure is provided between the shovel blade 321 forming platform 200 and the shovel blade 321 to enable the shovel to be carried out, so that the movement of the forming platform 200 can be controlled to be stopped, the forming platform 200 and the shovel blade 321 are stopped to be mutually close, and the shovel blade 321 or the forming platform 200 is prevented from being damaged due to overlarge pressure. The pressure threshold may be a predetermined pressure value.

Optionally, in the step of controlling the forming platform 200 to move toward the blade 321 at the second speed along the first direction, if the pressure between the blade 321 and the forming surface 210 does not reach the pressure threshold after the forming platform 200 descends by the second distance, the forming platform 200 is controlled to stop moving. The process in which the forming table 200 moves toward the blade 321 at the second speed in the first direction may be regarded as a blade pressing process, and if the pressure between the blade 321 and the forming surface 210 does not reach the pressure threshold after the forming table 200 descends a sufficient distance (such as the second distance in the present embodiment) during the blade pressing process, an abnormality may exist: such as the blade 321 not moving to the hold down position, or the blade 321 has been damaged, or the pressure sensor has failed. In order to avoid further damage to the equipment, the molding platform 200 can be controlled to stop moving, and abnormal conditions can be checked.

It should be understood that, in the embodiment of the present application, step S100 may be performed before or after step S200 and step S300, or may be performed simultaneously with step S200 and step S300.

In step S400, the scraper knife is controlled to slide on the molding surface so as to peel the printing piece from the molding surface to the receiving piece.

In step S400, when the pressure between the molding surface 210 and the blade 321 reaches the pressure threshold, the blade 321 is controlled to advance in the second direction (forward direction of the blade 3211) to peel the print material 020 from the molding surface 210. Further, the step S400 specifically includes: controlling the shovel blade 321 to slide on the molding surface 210 and detecting whether the shovel blade 321 reaches the end position of the shovel blade 321; in the case where it is detected that the blade 321 reaches the blade 321 end position, the blade 321 is controlled to stop moving. It can be seen that after the blade 321 slides on the forming surface 210 along the second direction, the blade 321 reaches the end position of the blade 321, at this time, the control mechanism receives the in-place signal of the first sensor 360, and the control mechanism controls the blade driving assembly 330 to stop driving, so that the blade 321 reaches the position shown in the second step in fig. 30. Alternatively, if the blade 321 is not detected to reach the blade 321 end position after the first period of time has elapsed since the timing of controlling the blade 321 to slide on the molding surface 210, the blade 321 may be controlled to stop moving. The first duration may be set as desired, such as 10s, 15s, or 20s. If the blade 321 has not been detected to reach the blade 321 end position after a first period of time has elapsed since the timing of controlling the blade 321 to slide on the molding surface 210 of the molding surface 210, an abnormality such as a failure of the first sensor 360 or a damage of the blade driving assembly 330 may occur, and thus the driving may be stopped and the abnormality may be detected.

In the present embodiment, after the printer 020 is separated from the molding surface 210, the blade 321 is controlled to move to the blade 321 initial position. Specifically, the control mechanism controls the movement of the blade 321 to the initial position of the blade 321 after the shovel step is completed, and stops the movement of the blade 321 when receiving the initial sensing signal of the blade 321 output from the second sensor 361. Meanwhile, the molding platform 200 can be controlled to retract to the initial platform position; specifically, the molding platform 200 is controlled to move to the initial platform position, and the movement of the molding platform 200 is stopped when the in-place signal output by the sensor is received.

In step S500, the receiving member receiving the printing member is controlled to leave from the receiving position.

In the embodiment of the present application, after the receiving member 351 receives the print member, the print member needs to be removed to avoid interference with the next print job. In this embodiment, the receiving member 351 has a material outlet level, and the step S500 specifically includes: the receiving member 351 receiving the printing member is controlled to move from the receiving position to the discharging position. In this embodiment, the stirring member 354 is connected to the receiving member 351 through magnetic attraction, and in the step of controlling the receiving member 351 with the printing member 020 to move from the receiving position to the discharging position, the receiving member driving assembly 352 can be controlled to drive the stirring member 354 to move, and under the action of magnetic attraction with the receiving member 351, the stirring member 354 drives the receiving member 351 to move from the receiving position to the discharging position. In this embodiment, when the receiving member 351 moves to the discharging position, it stays at the discharging position due to the blocking of the limiting member, as shown in the third step in fig. 30.

After the carriage 351 is moved to the outfeed position, the 3D printing method may further include:

and S600, unloading the printing piece received by the receiving piece at the discharging position.

According to the printer 010 provided by the embodiment of the application, when the receiving member 351 reaches the material outlet level, the receiving member driving assembly 352 can drive the material stirring member 354 to move from one side of the receiving member 351 far away from the material outlet 3511 towards the material outlet 3511, so as to stir out the printing member 020 accommodated in the material receiving space from the material outlet 3511. In this embodiment, after the receiving member 351 abuts against the limiting member, the driving stirring member 354 overcomes the magnetic attraction between the receiving member 351 and moves towards the discharge port 3511, so as to stir the printing member 020 out of the discharge port 3511. When the stirring part 3541 of the stirring part 354 is a soft stirring part, the liquid printing material in the receiving space can be pulled out from the discharge hole while the printing part 020 is pulled out from the discharge hole. Further, the kick-out member 354 can reach the kick-out completion position after the printing member 020 is pulled out from the discharge hole 3511, and the 3D printing method of the embodiment further includes: when it is determined that the stirring member 354 reaches the stirring completion position, the stirring member 354 is controlled to stop moving. Specifically, when the stirring member 354 moves to the stirring completion position, the stirring completion sensor 363 outputs a stirring completion sensing signal to the control mechanism so that the control mechanism controls the stirring member 354 to stop moving, and the stirring member 354 and the receiving member 351 reach the position shown in the fourth step in fig. 30.

Step S700, the material stirring piece is driven to move so as to drive the receiving piece to move to the waiting position and then stop moving.

In this embodiment, the receiver 351 also has a waiting position spaced from the receiving position, which is located outside the printing area of the 3D printer 010. After discharging the printer 020 received by the receiver 351 at the discharge position, the printer 010 according to the present embodiment controls the receiver 351 to move to the waiting position, including: the control receiving member driving assembly 352 drives the material shifting member 354 to move from the material shifting completion position to one end of the receiving member 351 far away from the material outlet 3511 of the receiving member 351, contacts the receiving member 351, brings the receiving member 351 to the waiting position and stops moving. The waiting position is the position where the receiving element 351 waits for receiving a printing element, the efficiency of receiving the printing element is higher when the receiving element 351 moves from the waiting position to the receiving position, and the position is positioned outside the printing area, so that the printing operation cannot be affected, and the receiving element 351 moves to the receiving position after the printing is finished. Thus, the step of controlling the carriage 351 to move to the receiving position is specifically: the control receiver 351 moves from the waiting position to the receiving position.

In one embodiment, the waiting position of the receptacle 351 is located between the receiving position and the discharging position; in another alternative embodiment, the waiting position coincides with the discharge position. After the material shifting member 354 is shifted, the material shifting member 354 needs to move along the second direction towards the direction away from the material outlet 3511 of the receiving member 351, so as to contact with one end of the receiving member 351 away from the material outlet 3511, so as to prepare for the next time the receiving member assembly 350 receives a material, the receiving member 351 is driven to move towards the material receiving position. It should be noted that when the kick-out member 354 moves into contact with the receiving member 351, there may be a possibility that the receiving member 351 moves a distance in the direction of the receiving material position into the printing area due to the magnetic attraction and the abutment action of the kick-out member 354, which may affect the printing work of the printer 010, as shown in the fifth step in fig. 30. In this case, therefore, after contacting the receiving member 351, the stirring member 354 is further required to move the receiving member 351 away from the receiving member 351 by a distance in the second direction by the driving of the receiving member driving assembly 352 to reach the waiting position and take the posture shown in the sixth step in fig. 30. In the sixth step of fig. 30, the shovel mechanism 300 has the same posture as in the first step, and the socket 351 is in the waiting position, so far, the socket 351 completes a complete socket flow.

In this embodiment, the socket sensor 364 is configured to output a wait sensing signal to the control mechanism when the socket 351 reaches the wait position, and the control mechanism controls the socket driving assembly 352 to stop driving according to the wait sensing signal.

In this embodiment, the reservoir 400 may be used to receive a print element 020 that is removed from the receiver 351. Further, in order to prompt an operator to take away the printing member 020 in time after the storage member 400 is full, the 3D printing method further includes: detecting whether the storage 400 is full; and under the condition that the storage piece 400 is detected to be full, controlling and outputting full prompt information. The full-piece prompt information may be a voice prompt information, and/or a picture or text prompt information, and correspondingly, the printer 010 may contain a speaker, a display screen, or an interaction mechanism for outputting the full-piece prompt information.

Similarly, the blade 321, the material-shifting member 354, the receiving member 351 and the forming platform 200 are determined to be abnormal during the operation, for example, the pressure between the blade 321 and the forming surface 210 after the forming platform 200 descends for the second distance still does not reach the pressure threshold, and the blade 321 does not detect that the blade 321 reaches the end position of the blade 321 after the forming surface 210 slides for the first time, and may also send a prompt message so that an operator can find the abnormality and check the abnormality.

Further, the 3D printing method of the present application may further include an automatic liquid feeding method, and specifically, the printing material may be automatically added to the tray 700 by controlling the automatic liquid feeding mechanism under a certain condition. The automatic liquid feeding mechanism may be the same as or different from the automatic liquid feeding mechanism in the foregoing embodiment, and the liquid feeding manner may be gravity liquid feeding, pumping liquid feeding, or the like, and is not limited herein, as long as automatic liquid feeding can be achieved.

In one embodiment, the printing material may be added to the tray 700 by an automatic priming mechanism prior to the beginning of a print of the printer 010. Of course, the present embodiment is not limited to performing the priming operation before each start of printing, and it may be determined whether priming is required, for example, based on at least the amount of printing material in the tray 700, or the like.

Specifically, under the condition that liquid adding is needed, if the shovel part operation is not needed before one-time printing starts, the liquid is directly added, and the 3D printing work can be performed after the liquid adding is finished; if the shovel operation is required to be performed before the printing is started, the automatic liquid adding can be performed synchronously with the shovel operation, or the automatic liquid adding can be performed before or after the shovel operation is completed, which is not limited herein.

In the case where the shovel operation is required, the automatic liquid adding mechanism may be controlled to add liquid after the previous printing is finished (when the light illuminating mechanism 600 stops exposing). Specifically, the liquid feeding may be started when the forming platform 200 starts to rise, or the liquid feeding may be started when the forming platform 200 rises and reaches the platform initial position, or the automatic liquid feeding may be started when the shovel blade 321 starts to move from the shovel blade initial position, the shovel blade 321 moves to the pressing position, the pressing is completed, the shovel blade 321 starts to shovel the piece, the shovel blade 321 moves to the shovel blade end position, the receiving piece 351 moves to the discharging position, and other nodes, so long as the automatic liquid feeding can be completed before or simultaneously completing the shovel piece operation, which is not limited specifically herein.

In this embodiment, the automatic liquid feeding start may be further determined according to the liquid level of the printing material in the tray 700, that is, after the time node is reached, the liquid level is further detected, and the liquid level meets the liquid feeding requirement, for example, when the liquid level reaches and/or is lower than the preset liquid level, the liquid feeding is performed; the automatic filling may be determined according to at least one of the level of the printing material in the tray 700, the estimated amount of the printing material required for the printing piece to be printed, etc., for example, the filling may be stopped when the level reaches and/or is higher than another preset level, or when the amount of the printing material to be added is equal to or greater than the estimated amount of the printing material required for the printing piece to be printed.

In an application scenario, before printing starts, an initial liquid level of printing material in the tray 700 can be detected by a liquid level sensor and fed back to a control mechanism, when the initial liquid level of the printing material in the tray 700 is detected to be lower than a first target liquid level, an automatic liquid adding mechanism is controlled to add the printing material into the tray 700, in the process of adding the printing material into the tray, the liquid level of the printing material in the tray 700 is detected by the liquid level sensor in real time or at preset time intervals and fed back to the control mechanism, and when the liquid level of the printing material in the tray 700 is detected to reach a second target liquid level, the automatic liquid adding mechanism is controlled to stop adding the printing material into the tray 700, so that automatic liquid adding is completed. Wherein the first target level may be lower than the second target level.

In addition, the first target level may also coincide with the second target level, in which case the filling is controlled when it is detected that the level is below the preset low/high level and stopped when the level rises to the preset low/high level.

In another application scenario, the automatic printing mechanism is the automatic liquid feeding mechanism 900 in the foregoing embodiment, and the step of performing automatic liquid feeding before the start of printing may include:

S20: acquiring printing piece information and a first liquid level of printing materials in the tray 700;

specifically, the print information may include parameters of the print, such as the number of print layers, print time, slice data, process parameters, and the like. The print information may be retrieved directly from the memory of the printer 010 or may be obtained by other means. In addition, the first liquid level may be obtained by the liquid level sensor described above, or may be obtained by other means.

S30: under the condition that the first liquid adding condition is met currently, determining the type of the printing material according to the printing piece information, and determining liquid adding parameters according to the type of the printing material; the liquid adding parameters comprise liquid adding time; the first liquid adding condition comprises that the first liquid level is smaller than a first preset value;

specifically, if the first liquid level is smaller than the first preset value, the need of liquid filling is indicated. At this time, the type of the printing material is determined according to the printing piece information, and the filling parameters are selected according to the type of the printing material. It should be noted that, a one-to-one correspondence relationship between the type of the printing material and the liquid adding parameter may be preset, and the liquid adding parameter may be determined after the type of the printing material is determined.

S40: the priming drive assembly 940 is controlled to drive the blocking member 931 such that the liquid outlet is in an open state for a duration of time to add printing material to the tray 700 and maintain the open state for a priming duration.

Specifically, the current position of the molding platform 200 may be obtained first, and when the molding platform 200 is detected to reach the initial position of the platform, the liquid adding driving assembly 940 is controlled to drive the blocking member 931, so that the liquid outlet is in an open state; and after the duration of maintaining the opening state of the liquid outlet reaches the above-mentioned liquid adding duration, the liquid adding driving assembly 940 is controlled to drive the blocking member 931 so as to make the liquid outlet in the blocking state.

Of course, in the present application scenario, before determining the type of the printing material according to the printing information, step S10 may further include: acquiring the current weight of a storage mechanism 950 of the 3D printer; the first charging condition further includes the current weight being greater than a second preset value.

Wherein, when the current weight of the storage mechanism 950 is lower than the second preset value, a replacement prompt can be sent out, so that an operator can replace the storage mechanism 950 in time to ensure the amount of printing materials in the feeding box 920. The current weight of the storage mechanism 950 can be obtained by receiving the weight information transmitted by the gravity sensor.

In addition, in a specific example, after the step of controlling the liquid adding driving assembly 940 to drive the blocking member 931 to open the liquid outlet and maintain the open state for the duration of the liquid adding duration, the method further includes step S50:

A second level of pick-up tray 700; and sending out a prompt signal under the condition that the second liquid level is lower than the preset liquid level.

It can be appreciated that, by sending the prompt message for error reporting in this step, it is convenient for the operator to check the fault information of the printer 010, for example, when the first liquid level information is lower than the preset liquid level, the liquid outlet 922 may be blocked.

It should be noted that, through the automatic liquid feeding method in this application scenario, the liquid feeding demand when printing can be adapted to different materials. In addition, under the condition that the flow rate of the printing material of the feeding box 920 leading to the tray 700 is stable, the accurate control of the printing material in the tray 700 can be realized, the success rate of printing is further improved, and the waste of the printing material is avoided.

In another embodiment, the printing material may be added to the tray 700 by an automatic priming mechanism during printing by the printer 010. It will be appreciated that the present embodiment is not limited to performing the priming operation during each printing, but may be determined based on the level of printing material in the tray 700, the printing requirements, etc.

In this embodiment, when the liquid adding operation is performed, printing can be paused first, including that the platform driving mechanism 800 pauses to drive the forming platform 200 to move, the illumination mechanism 600 pauses to expose, and the like, then the automatic liquid adding mechanism is controlled to add liquid, and after the liquid adding is finished, or after the printing material in the tray 700 is further stabilized, printing is started again, so that even if liquid adding is performed in the printing process, adverse effects on printing quality due to disturbance of the printing material in the tray 700 can be avoided.

Further, the start of automatic filling may be determined according to the level of the printing material in the tray 700, the printing data, etc., for example, when reaching and/or falling below a preset level, or after the previous filling, the printing data such as the consumption of the printing material consumed by the printing job, the number of layers printed, the height of the printed print, the volume of the printed print, etc. are determined; the termination of the automatic filling may be determined according to at least one of a level of the printing material in the tray 700, an estimated amount of the printing material required for the printing piece to be printed, etc., and for example, the filling may be stopped when the level reaches and/or is higher than another preset level, or when the amount of the printing material to be added is equal to or greater than the estimated amount of the printing material required for the printing piece to be printed.

In an application scenario, during printing, the liquid level of the printing material in the tray 700 can be detected in real time or at predetermined time intervals through a liquid level sensor, and fed back to the control mechanism, when the initial liquid level of the printing material in the tray 700 is detected to be lower than the first target liquid level, printing can be suspended, then the automatic liquid adding mechanism is controlled to add the printing material into the tray 700, during the process of adding the printing material into the tray, the liquid level of the printing material in the tray 700 is detected through the liquid level sensor in real time or at predetermined time intervals, and fed back to the control mechanism, when the liquid level of the printing material in the tray 700 is detected to reach the second target liquid level, the automatic liquid adding mechanism is controlled to stop adding the printing material into the tray 700, so that automatic liquid adding is completed, and printing is then continued to start. Wherein the first target level may be lower than the second target level.

In another application scenario, a target liquid level of the tray 700 may be preset, during printing, at least one of printing data including a printing layer number, a printing height, a printing volume (i.e. a volume of a printed print piece), a consumption amount of a printing material, etc. may be acquired, when a value corresponding to the printing data reaches a preset value, for example, when the printing machine prints a predetermined layer number or a predetermined height of a print piece or consumes a preset amount of the printing material, or when the volume of the printed print piece reaches a maximum consumption amount of the printing material consumed once (the maximum consumption amount may be preset so as not to exhaust the printing material in the tray 700 during printing), printing may be temporarily set, then the automatic liquid adding mechanism may be controlled to add the printing material into the tray 700, and during adding the printing material into the tray 700 by the automatic liquid adding mechanism, the liquid level of the printing material in the tray 700 may be detected by the liquid level sensor in real time or at predetermined time intervals, and fed back to the control mechanism, when the liquid level of the printing material in the tray 700 reaches the target liquid level is detected, the automatic liquid adding mechanism may be controlled to stop adding the printing material into the tray 700, and printing may be completed after the printing is completed.

In the application scene, the number of printing layers, the printing height, the printing volume and the consumption of printing materials refer to the number of printing layers, the printing height of a printing piece, the printing volume of the printing piece, the consumption of the printing materials and the like in the process of one printing from the last automatic liquid adding after the beginning of the printing; or when automatic liquid adding is not performed after the start of the printing, the number of layers printed, the printed height of the printing piece, the printed volume of the printing piece, the consumed consumption of the printing material and the like are counted from the start of the printing. Of course, in other application scenarios, the number of accumulated print layers, accumulated print height, accumulated print volume, accumulated consumption of printing material, and the like may also be referred to, which is not limited herein. In addition, the print volume can be estimated according to slice data corresponding to the printed print piece, for example, the corresponding volume can be obtained according to the area of each slice and the corresponding layer thickness.

It should be noted that, in the application scenario, the preset target liquid level may be a lower liquid level. Specifically, the specific position of the preset target liquid level is not limited in the present application scenario, and the target liquid level may be set together according to the shape and size of the tray 700 and the influence of other relevant components of the printer 010. In this application scenario, the amount of the printing material corresponding to the target liquid level may be smaller than the total consumption of the printing material in the secondary printing process, that is, the required amount of the printer 010 for completing one-time printing cannot be satisfied, so automatic liquid adding is required in the printing process. In addition, in other application scenarios, the amount of the printing material corresponding to the liquid level may also be capable of meeting the consumption corresponding to one-time printing or several times of printing, for example, when the consumption of one-time printing can be just met, the printing material may be added before the next printing, and the addition at this time may be added according to the monitoring of the liquid level.

It will be appreciated that if the liquid level of the printing material in the tray 700 is high, the printing material needs to be consumed for a long time, so that a part of the printing material has a long time and a probability of contacting with external light before being printed and consumed, and unnecessary solidification and deterioration can occur more easily to a certain extent, so that residues are generated in the printing material of the tray 700, and the printing quality is further affected. In this application scenario, because the liquid level is lower liquid level, through control mechanism to automatic liquid feeding mechanism's control for the printing material in the charging tray 700 remains in lower liquid level all the time, can reduce the printing material in the charging tray 700 and external light contact, thereby greatly reduced printing material leads to the probability of unnecessary solidification because of contacting with external light, reduce the possibility of producing the residue in the charging tray 700, and then reduce its risk that produces adverse effect to the printing quality.

In addition, the automatic liquid adding method in this embodiment may further perform liquid adding by referring to the manner of determining the liquid adding time according to the information of the printed matter in the previous embodiment, and only the time node of liquid adding is different, and the detailed description is omitted herein.

Among the above-mentioned various liquid feeding modes, control mechanism all accessible level sensor obtains the liquid level of printing material in tray 700, and wherein, level sensor specifically can include any one of the following sensors: impedance sensors, capacitive sensors, and laser sensors.

In summary, the 3D printing method provided by the present application may include controlling the forming platform 200 and the blade 321 to approach each other, and obtaining the pressure between the blade 321 and the forming surface 210; in the case where the pressure between the blade 321 and the molding surface 210 reaches the pressure threshold, the molding stage 200 and the blade 321 are stopped from approaching each other; the blade 321 is controlled to slide on the molding surface 210 to peel the print from the molding surface 210. The 3D printing method can automatically implement the operations of peeling the printed matter from the modeling platform 200, receiving the printed matter, and discharging the printed matter at the discharging position, and storing the printed matter in the storage 400. Based on the automatic realization of the whole flow of operations such as shoveling, receiving and storing after printing, the printing efficiency can be improved, the unattended printing operation can be realized, and the labor cost is reduced. And through detecting the pressure between the shovel 321 and the molding surface 210, carry out the shovel when reaching pressure threshold, can guarantee the shovel effect of preferred, avoid equipment damage simultaneously. In addition, the method can avoid the pollution of human bodies or equipment caused by manually carrying out the shovel.

The scoop mechanism 300 provided by the present application includes a scoop assembly 310 for stripping a print from the forming surface 210 and a connector assembly 350 for receiving the print stripped from the forming surface 210 at a receiving location and removing the print from the receiving location. The 3D printer 010 provided by the present application includes the molding platform 200, the platform driving mechanism 800, and the shovel mechanism 300 described above; the molding platform 200 has a molding surface 210, the molding surface 210 is used for attaching printing pieces, and the platform driving mechanism 800 is used for driving the molding platform 200 to move; the pressure sensor is used to acquire the pressure between the blade 321 and the molding surface 210. The 3D printer 010 provided by the application can realize the 3D printing method, so that the 3D printing method has the advantages of high operation efficiency, stable quality of printed products, reduction of pollution of printing materials to human bodies or equipment and the like. Meanwhile, printing operation can be performed under the unattended condition, and labor cost is saved.

The present application is not limited to the above embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present application are intended to be included in the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims

1. Shovel spare mechanism is applied to 3D printer, 3D printer includes shaping platform and charging tray, shaping platform has the molding surface, the molding surface is used for attaching the printing piece, its characterized in that, shovel spare mechanism includes:

a shovel assembly, comprising:

a blade for peeling the print member from the molding surface;

a blade drive assembly for driving at least one of the blade and forming table such that the blade and forming table move relative to each other to peel the print from the forming surface by the blade;

a connector assembly, comprising:

a receiving member having a receiving portion for receiving the printing member peeled from the molding surface at the receiving portion;

the receiving piece driving assembly is used for driving the receiving piece to move to the receiving material position;

the receiving piece is also provided with a discharging position, and the receiving piece assembly is also used for discharging the printing piece at the discharging position;

the receiving piece is further provided with a waiting position which is spaced from the receiving position, and the receiving piece is used for waiting at the waiting position in the printing process of the 3D printer;

when the receiving piece is positioned at the receiving position, the receiving piece is positioned between the forming platform and the material tray.

2. The shovel mechanism according to claim 1, wherein the socket drive assembly is further configured to drive the socket to move to the discharge position.

3. The scoop mechanism of claim 2, wherein the receptacle has a receiving space for receiving the print and a discharge port in communication with the receiving space, the receptacle assembly further comprising a deflector disposed at least partially within the receiving space;

the receiving piece driving assembly is further used for driving the stirring piece to move towards the discharge hole when the receiving piece reaches the discharge position, so that the printing piece accommodated in the receiving space is pulled out from the discharge hole.

4. A shovel mechanism according to claim 3, wherein the kicker is capable of reaching a kicker complete position after kicking the print out of the discharge port, the shovel mechanism further comprising a kicker complete sensor;

the material stirring completion sensing device is used for outputting a material stirring completion sensing signal when the material stirring piece reaches the material stirring completion position.

5. A shovel mechanism according to claim 3, wherein the material-shifting member comprises a soft material-shifting portion for sliding and elastically abutting against the bottom of the material-receiving space of the receiving member when the material-shifting member shifts the material so as to shift the material in the material-receiving space from the material outlet.

6. A shovel mechanism according to claim 3, wherein the stirring element comprises a first magnetic part, the receiving element comprises a second magnetic part, the stirring element and the receiving element are connected through magnetic attraction between the first magnetic part and the second magnetic part, and the receiving element driving assembly is further used for driving the stirring element to drive the receiving element to move from the receiving position towards the discharging position under the magnetic attraction after the receiving element is received.

7. The shovel mechanism according to claim 6, wherein the second magnetic portion is provided at an end of the receiving piece away from the discharge port, the shovel mechanism further comprising a stopper for abutting the receiving piece to restrict continued movement thereof when the receiving piece moves to the discharge position;

the receiving piece driving assembly is further used for driving the stirring piece to overcome the magnetic attraction effect between the stirring piece and the receiving piece and move towards the discharge hole after the receiving piece is abutted to the limiting piece.

8. A shovel mechanism according to claim 3 wherein the connector assembly further comprises a kicker rail, one end of the kicker being drivingly connected to the connector drive assembly and the other end of the kicker being overlapped with and movable along the kicker rail.

9. The shovel mechanism of claim 2, further comprising a socket sensor for outputting a wait sensing signal when the socket reaches the wait position.

10. The shovel mechanism according to claim 9, wherein the socket drive assembly is configured to drive the socket to move between the discharge position and the socket position, the waiting position being disposed between the discharge position and the socket position; or alternatively, the first and second heat exchangers may be,

and the waiting position coincides with the discharging position.

11. The scoop mechanism of claim 1, wherein the receptacle has a receiving space for receiving the print and a discharge port in communication with the receiving space, the receptacle assembly further comprising a flip assembly for flipping the receptacle at the discharge location to discharge the print received in the receiving space.

12. The shovel mechanism according to claim 1, wherein the socket assembly further comprises a socket rail, and wherein the socket is overlapped on both sides of the socket rail and is movable along the socket rail.

13. The shovel mechanism of claim 1, further comprising a level sensor; the receiving position sensor is used for outputting a receiving sensing signal when the receiving piece reaches the receiving position.

14. A blade mechanism according to claim 1, wherein the blade drive assembly is adapted to drive the blade between a blade end position and a blade home position, the blade end position being downstream of the blade edge of the blade relative to the blade home position; the shovel mechanism further includes:

a first sensor for outputting a blade termination sensing signal when the blade reaches the blade termination position; and/or the number of the groups of groups,

and the second sensor is used for outputting a shovel blade initial sensing signal when the shovel blade reaches the shovel blade initial position.

15. The blade mechanism of claim 14, wherein the blade assembly further comprises a shutter disposed above the blade home position to block the blade when the blade is in the blade home position.

16. The blade mechanism of claim 1, wherein the blade has a first surface and a second surface disposed opposite one another, and a slope connecting the first surface and the second surface, the slope being at an acute angle to the first surface, the junction of the slope and the first surface forming a blade edge of the blade for contacting the forming surface when the blade slides over the forming surface, the first surface for facing the forming surface when the blade slides over the forming surface, and the second surface for facing away from the forming surface when the blade slides over the forming surface.

17. The blade mechanism of claim 1, wherein the blade includes two ends disposed along a length, the blade edge of the blade being disposed between the two ends;

the shovel component further comprises a liquid blocking piece, wherein the liquid blocking piece is arranged on the shovel blade and used for blocking liquid printing materials on the shovel blade from flowing to the two end parts.

18. The blade mechanism of claim 1, wherein the blade drive assembly comprises a power module, a transmission module, a slide rail, and a slide base, the blade is mounted on the slide base, and the slide base is slidably connected to the slide rail, and the blade drive assembly is in transmission connection with the slide base and is configured to drive the slide base to drive the blade to move along the slide rail.

19. The blade mechanism of claim 18, wherein the blade drive assembly comprises two slide rails and two slide seats, the two slide rails are arranged in parallel and spaced apart, the two slide seats are respectively slidably connected to the two slide rails, and two ends of the blade are respectively mounted on the two slide seats.

20. The shovel mechanism according to claim 19, wherein the transmission module comprises a power receiving unit, a transmission shaft, and two synchronous transmission units;

The power receiving unit is respectively connected with the power module and the transmission shaft, each synchronous transmission unit is respectively connected with the transmission shaft and the corresponding sliding seat, and the power receiving unit is used for receiving power provided by the power module and transmitting the power to the transmission shaft so as to drive the synchronous transmission units to synchronously move and drive the corresponding sliding seats to synchronously move.

21. The blade mechanism of claim 18, wherein the blade assembly further comprises a blade holder and an adjustment assembly, the blade being mounted to the blade holder, the blade holder being coupled to the slide, the adjustment assembly being configured to adjust the angle of inclination of the blade relative to the molding surface in cooperation with the blade holder.

22. The blade mechanism of claim 21, wherein the adjustment assembly includes an elastic member having one end abutting the blade seat and the other end abutting the slide seat, the elastic member having a tendency to expand the angle of inclination of the blade relative to the molding surface.

23. The blade mechanism of claim 22, wherein the adjustment assembly further comprises an adjustment member, the adjustment member being adjustable in position relative to the slide seat, the adjustment member for abutting a side of the blade holder facing away from the slide seat to limit a maximum angle of inclination of the blade relative to the forming surface.

24. The shovel mechanism according to claim 23, wherein the elastic member is a compression spring, the adjustment member is an adjustment bolt, the adjustment bolt includes a head portion and a threaded rod that are connected to each other, the threaded rod of the adjustment bolt is threaded through the tool holder and the compression spring and is screwed to the sliding seat, and the head portion of the adjustment bolt is configured to abut against a side of the tool holder facing away from the compression spring.

25. The blade mechanism of claim 1, wherein the blade assembly further comprises a blade tag disposed on the blade, the blade mechanism further comprising a blade reader for identifying the blade tag.

26. The blade mechanism of claim 25, wherein the blade tag is an NFC tag, the blade tag is configured to record a number of blades of the blade, and the blade reader is configured to read the number of blades of the blade from the blade tag.

27. The blade mechanism of claim 1, wherein the blade of the blade is an arcuate blade, or,

the cutting edge of the shovel blade is a straight cutting edge and is inclined to the moving direction of the shovel blade.

28. The scoop mechanism of claim 18, further comprising a print sensor disposed on the slide for detecting a print on the molding surface of the molding platform.

29. A 3D printer comprising the scoop mechanism of any of claims 1-28, the 3D printer further comprising:

the tray is used for containing printing materials;

a forming platform having a forming surface and for adhering the printing material layer by layer to the forming surface to obtain a printed article;

wherein, shovel spare mechanism is located between charging tray and the shaping platform.

30. The 3D printer of claim 29, further comprising:

the platform driving mechanism is used for driving the forming platform to move;

and the pressure sensor is used for detecting the pressure between the shovel blade and the molding surface.

31. The 3D printer of claim 30, wherein the platform drive mechanism is configured to drive the modeling platform to move in a first direction and the blade drive assembly is configured to drive the blade to move in a second direction, wherein the first direction is perpendicular to the second direction.

32. The 3D printer of claim 29, further comprising a storage member having a receiving space for receiving the printing member, the storage member for receiving the printing member unloaded from the receiving member.

33. The 3D printer of claim 32, further comprising a base plate having a material receiving aperture, wherein the scoop mechanism is positioned on one side of the base plate and the storage element is positioned on the other side of the base plate and positioned in correspondence with the material receiving aperture, wherein the printing element removed from the receptacle enters the storage element from the material receiving aperture.

34. The 3D printer of claim 29, further comprising a substrate and an illumination mechanism, wherein the illumination mechanism is configured to cure the printing material by illumination, a light-transmitting area is disposed on the substrate, the illumination mechanism comprises a mounting assembly and a light machine, the molding platform and the light machine are respectively disposed on two opposite sides of the substrate, the light machine is fixed on the substrate through the mounting assembly, and the position of the light machine relative to the substrate is adjustable, and the light-emitting direction of the light machine faces the light-transmitting area.

35. The 3D printer of claim 34, wherein the mounting assembly comprises a mounting back plate and a first adjustment plate, the optical machine is connected to the first adjustment plate, the mounting back plate is fixed relative to the substrate, a bar-shaped hole is arranged on the mounting back plate, the bar-shaped hole extends along a first direction, the first adjustment plate is fixed on the mounting back plate through cooperation of a bolt and the bar-shaped hole, and the position of the bolt can be adjusted along the extending direction of the bar-shaped hole in a space defined by the bar-shaped hole, so that the position of the first adjustment plate relative to the mounting back plate in the first direction can be adjusted; the mounting assembly further comprises a second adjusting plate, the optical machine is connected to the second adjusting plate, the second adjusting plate is arranged on the first adjusting plate in a laminated mode, the second adjusting plate is attached to the first adjusting plate and can be adjusted to the position of the surface of the first adjusting plate, and therefore the optical machine can be adjusted to the position in the second direction and/or the third direction through the second adjusting plate and can rotate around an axis parallel to the first direction;

the mounting assembly further comprises a third adjusting plate, the third adjusting plate is arranged on the second adjusting plate in a laminated mode, the optical machine is connected to the third adjusting plate, and the inclination angle of the third adjusting plate relative to the second adjusting plate is adjustable so as to adjust the angle of rotation of the optical machine around an axis parallel to the second direction and/or the third direction;

The first direction, the second direction and the third direction are perpendicular to each other.

36. The 3D printer of claim 29, further comprising a human body sensing mechanism and an operating mechanism, the human body sensing mechanism configured to output a human body sensing signal when a human body is detected in a predetermined area and to activate or wake up the operating mechanism.

37. The 3D printer of claim 36, wherein the operating mechanism comprises at least one of an illumination mechanism and a display screen, and the body sensing mechanism comprises a 5.8GHz microwave radar.

38. The 3D printer of claim 34, wherein the substrate is provided with a clearance through hole; the 3D printer further comprises a rolling element and an elastic floating element, wherein the rolling element is arranged at the position of the avoidance through hole in a lifting manner, the rolling element is provided with a lifting position and a descending position relative to the base plate, when the material tray is separated from the fixation of the base plate, the rolling element is positioned at the lifting position, the top of the rolling element is higher than the upper surface of the base plate, and when the material tray is fixed on the base plate, the rolling element is positioned at the descending position, and the top of the rolling element is propped against the material tray; the elastic floating member is used for enabling the rolling member to generate a trend of moving towards the ascending position.

39. The 3D printer of claim 29, wherein the 3D printer further comprises an automatic priming mechanism and a storage mechanism, the automatic priming mechanism comprising:

transfer liquid feeding subassembly includes:

the charging box comprises a charging box body and a liquid outlet part; the liquid outlet part is communicated with the charging box body; the feeding box body is used for receiving printing materials flowing out of the storage mechanism;

the locking structure comprises a blocking piece and an elastic piece; the plugging piece moves along the axial direction of the liquid outlet part; the elastic piece acts on the blocking piece so that the blocking piece abuts against the liquid outlet of the liquid outlet part according to the elastic force of the elastic piece;

and the liquid adding driving assembly is used for driving the plugging piece to open or plug the liquid outlet.

40. The 3D printer of claim 39, wherein the printer is configured to,

the storage mechanism comprises a liquid storage bottle and a check valve; the liquid storage bottle is communicated with a liquid inlet of the check valve;

the transfer liquid adding component further comprises a fool-proof piece, and the fool-proof piece is arranged in the accommodating cavity of the charging box body; the height of the lower bottom surface of the check valve is smaller than the height of one end of the fool-proof piece, which is far away from the charging box body, and one end of the fool-proof piece, which is far away from the charging box body, is positioned in the check valve.

41. The 3D printer of claim 39, wherein the locking structure further comprises a slider; the plugging piece is in sliding connection with the sliding piece, and the sliding piece is fixedly connected with the outer surface of the liquid outlet part.

42. The 3D printer of claim 41, wherein the liquid outlet portion comprises a liquid outlet pipe communicated with the charging box body, and a first fixing bracket arranged on the side wall of the liquid outlet pipe, the sliding piece is fixedly connected with the first fixing bracket, the blocking piece comprises a supporting portion and a baffle plate connected with the supporting portion, and the baffle plate is used for blocking the liquid outlet pipe; the supporting part and the baffle are respectively arranged at two sides of the first fixed bracket;

the transfer liquid adding assembly further comprises a fastener, and the supporting part is connected with the first fixing bracket through the fastener; the elastic piece is sleeved on the fastener; one end of the elastic piece is propped against the first fixed support, the other end of the elastic piece is propped against the propping part, and when the elastic piece is in a compressed state, the baffle is propped against the liquid outlet of the liquid outlet part according to the elasticity of the elastic piece.

43. The 3D printer of claim 29, further comprising a platform reader and a platform tag disposed on the shaping platform, the platform tag for recording a number of uses of the shaping platform, the platform reader for reading the number of uses of the shaping platform from the platform tag; and/or the number of the groups of groups,

the 3D printer further comprises a tray card reader and tray labels arranged on the tray, wherein the tray labels are used for recording the use times of the tray, and the tray card reader is used for reading the use times of the tray from the tray labels.

44. A 3D printing method applied to the 3D printer of any one of claims 29 to 43, wherein the 3D printing method comprises:

controlling the receiving piece to move to the receiving position;

controlling the scraper knife to slide on the molding surface so as to peel the printing piece from the molding surface to the bearing piece;

and controlling the receiving piece which receives the printing piece to move away from the receiving position.

45. The 3D printing method as defined in claim 44 wherein prior to the step of controlling the blade to slide over the forming surface to peel the print member from the forming surface to the receiver, the 3D printing method further comprises:

Controlling the forming platform and the shovel blade to approach each other, and acquiring the pressure between the shovel blade and the forming surface;

and stopping the forming platform and the shovel blade from approaching each other when the pressure reaches a pressure threshold.

46. The 3D printing method as defined in claim 45, wherein the step of controlling the forming table and the blade to approach each other and acquiring the pressure between the blade and the forming surface comprises:

controlling the shovel blade to move from a shovel blade initial position to a blade pressing position, wherein the blade pressing position is positioned at one side of the forming platform in a first direction;

controlling the forming platform to move from a platform initial position to a cutter pressing position of the shovel cutter at a first speed along the first direction;

when the forming platform moves for a preset distance at the first speed, controlling the forming platform to move towards the shovel blade along the first direction at the second speed, and continuously acquiring the pressure between the shovel blade and the forming surface;

when the pressure reaches a pressure threshold value, controlling the forming platform to stop moving;

the preset distance is smaller than the distance between the initial position of the platform and the position of the pressing knife in the first direction, and the second speed is smaller than the first speed.

47. The 3D printing method as defined in claim 46, further comprising:

and after the printing piece is separated from the molding surface, controlling the shovel blade to move to the initial position of the shovel blade.

48. The 3D printing method as defined in claim 44 wherein the step of controlling movement of the carriage carrying the print member away from the carriage level comprises:

controlling the receiving piece receiving the printing piece to move from the receiving position to the discharging position;

the 3D printing method further includes:

and unloading the printing piece carried by the carrying piece at the discharging position.

49. The method of 3D printing according to claim 48, wherein the receiver has a discharge port, the 3D printer further comprising a kicker, the step of discharging the print received by the receiver at the discharge port comprising:

after the receiving piece reaches the material outlet level, the material stirring piece is driven to stir the printing piece received by the receiving piece out of the material outlet.

50. The 3D printing method as defined in claim 49 wherein the step of controlling the movement of the receiving member receiving the printing member from the receiving position to the discharging position by a magnetic attraction connection between the ejecting member and the receiving member comprises:

The stirring piece is driven to move so as to drive the receiving piece to move from the receiving position to the discharging position under the action of magnetic attraction;

after the receiving piece reaches the material outlet level, driving the material stirring piece to stir out the printing piece received by the receiving piece from the material outlet, wherein the step comprises the following steps:

after the receiving piece reaches the material outlet level and pauses the movement, the stirring piece is driven to overcome the magnetic attraction effect between the stirring piece and the receiving piece and move towards the material outlet so as to stir the printing piece received by the receiving piece out of the material outlet.

51. The 3D printing method of claim 49 wherein the waiting position is outside a printing area of the 3D printer;

after the step of discharging the printing piece carried by the carrying piece at the discharging position, the 3D printing method further includes: driving the stirring piece to move so as to drive the receiving piece to move to the waiting position and then stop moving;

the step of controlling the movement of the susceptor to the receiving level comprises: and driving the material stirring piece to move so as to drive the receiving piece to move from the waiting position to the receiving position.

52. The 3D printing method as defined in claim 48 wherein the 3D printer further comprises a storage and full sensor, the storage for receiving the print of the socket unloaded at the discharge location, the 3D printing method further comprising:

detecting whether the storage piece is full or not by the full piece sensor;

and when the storage piece is detected to be full, controlling and outputting full prompt information.

53. The 3D printing method of claim 44 wherein the 3D printer further comprises an automatic priming mechanism, the 3D printing method further comprising:

acquiring an initial liquid level of printing materials in the material tray, and controlling the automatic liquid adding mechanism to add the printing materials into the material tray when the initial liquid level is lower than a first target liquid level;

acquiring the liquid level of the printing material in the material tray in the process of adding the printing material into the material tray by the automatic liquid adding mechanism, and controlling the automatic liquid adding mechanism to stop adding the printing material into the material tray when the liquid level reaches a second target liquid level;

wherein the first target level coincides with the second target level or the first target level is lower than the second target level.

54. The 3D printing method of claim 44 wherein the 3D printer further comprises an automatic priming mechanism, the 3D printing method further comprising:

acquiring printing data, wherein the printing data comprises at least one of printing layer number, printing height, printing volume and consumption of printing materials;

when the value corresponding to the printing data reaches a preset value, controlling the automatic liquid adding mechanism to add printing materials into the material tray;

and in the process of adding printing materials into the material tray by the automatic liquid adding mechanism, acquiring the liquid level of the printing materials in the material tray, and controlling the automatic liquid adding mechanism to stop adding the printing materials into the material tray when the liquid level reaches a target liquid level.

55. The 3D printing method of claim 54, wherein the amount of printing material corresponding to the target level is less than a total consumption of printing material during one printing process;

the step of acquiring print data includes: and acquiring the printing data in the printing process of the 3D printer.

56. The 3D printing method as defined in claim 46 wherein the 3D printer further comprises an automatic liquid feeding mechanism defining a liquid outlet and including a blocking member and a driving mechanism, the 3D printing method further comprising:

Acquiring printing piece information and a first liquid level of printing materials in the material tray;

under the condition that the first liquid adding condition is met currently, determining the type of the printing material according to the printing piece information, and determining liquid adding parameters according to the type of the printing material; the liquid adding parameters comprise liquid adding time; the first liquid adding condition comprises that the first liquid level is smaller than a first preset value;

and controlling the driving mechanism to drive the blocking piece so that the liquid outlet is in an opening state to add printing materials into the tray, and maintaining the opening state for a period of time reaching the liquid adding period of time.

57. The 3D printing method as defined in claim 56 wherein the step of controlling the drive mechanism to drive the closure comprises:

acquiring the current position of the forming platform, and controlling the driving mechanism to drive the plugging piece when the forming platform reaches the initial position of the platform so as to enable the liquid outlet to be in an open state;

the 3D printing method further includes:

and after the liquid outlet maintains the opening state for a period of time reaching the liquid adding period, controlling the driving mechanism to drive the plugging piece so as to enable the liquid outlet to be in a plugging state.

58. The 3D printing method as defined in claim 56 wherein the 3D printer further comprises a storage mechanism for providing printing material, the 3D printing method further comprising, prior to the step of determining the type of printing material from the printing information:

acquiring the current weight of a storage mechanism of the 3D printer; the first charging condition further includes the current weight being greater than a second preset value.