CN115742296A

CN115742296A - Three-dimensional printing equipment

Info

Publication number: CN115742296A
Application number: CN202211325105.5A
Authority: CN
Inventors: 周承立; 龙志刚
Original assignee: Shenzhen Anycubic Technology Co Ltd
Current assignee: Shenzhen Anycubic Technology Co Ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2023-03-07
Also published as: WO2022257781A1; CN115503234A

Abstract

The invention relates to the technical field of three-dimensional printing, in particular to three-dimensional printing equipment. The equipment comprises a fixed support, a printing head, a printing platform, a second driving assembly and a lifting assembly, wherein the printing head is connected with the fixed support in a sliding manner; the printing platform is arranged opposite to the printing head and is connected with the fixed support in a sliding manner; the second driving assembly is connected with the printing platform to drive the printing platform to move along a third direction and a fourth direction of the second plane; the lifting assembly is connected with the printing platform to drive the printing platform to move along the height direction, and the height direction is intersected with the second plane. The second drive assembly can drive the printing platform to move along the third direction and the fourth direction of the second plane, the lifting assembly can drive the printing platform to move along the height direction, the printing platform can be driven to move along three different directions through the cooperation of the second drive assembly and the lifting assembly, the problem that the moving direction of the printing platform is single is solved, and the flexibility of the movement of the printing platform is favorably improved.

Description

Three-dimensional printing equipment

The present application is a divisional application, filed on filing No. 202110631254.3, filed on 2021, 06/07, the entire contents of which are incorporated herein by reference.

Technical Field

The invention relates to the technical field of 3D printing, in particular to three-dimensional printing equipment.

Background

3D printing equipment is also called three-dimensional printing equipment (3 dimension printer,3 DP), is an accumulation manufacturing technology, namely a machine of rapid prototyping technology, and is based on a digital model file, and can be used for manufacturing a three-dimensional object by sequentially printing multiple layers of adhesive materials such as special wax materials, powdered metal or plastics and the like. Among the prior art, the 3D printer can only let print platform remove to a direction, and print platform's removal flexibility is less, and print platform's moving direction is comparatively single.

Disclosure of Invention

In view of this, an embodiment of the present invention provides a three-dimensional printing apparatus to solve the problem that a moving direction of a printing platform is relatively single.

In order to achieve the purpose, the invention mainly provides the following technical scheme:

a three-dimensional printing device comprises a fixed support, a printing head, a printing platform, a second driving component and a lifting component, wherein,

the printing head is connected with the fixed bracket in a sliding manner; the printing platform is arranged opposite to the printing head and is connected with the fixed support in a sliding manner; the second driving component is connected with the printing platform to drive the printing platform to move along a third direction and a fourth direction of the second plane;

the lifting assembly is connected with the printing platform to drive the printing platform to move along the height direction; the height direction intersects the second plane.

Optionally, the three-dimensional printing apparatus further includes a second sliding guide rod, the second sliding guide rod extends along the third direction, the second sliding guide rod is connected to the fixed support, and the printing platform is slidably connected to the second sliding guide rod; the second driving component is used for driving the printing platform to move along a third direction.

Optionally, the three-dimensional printing apparatus further comprises a support platform, and the support platform is connected with the fixed support;

the supporting platform comprises a third guide rod and a fourth guide rod which are arranged oppositely and in parallel, and the second sliding guide rod is respectively connected with the third guide rod and the fourth guide rod in a sliding manner; the second sliding guide rod is connected with the printing platform in a sliding mode, and the printing platform is located between the supporting platform and the printing head;

the second driving assembly comprises a third sub driving part and a fourth sub driving part, and the third sub driving part is used for driving the second sliding guide rod to move along a fourth direction so as to drive the printing platform to move along the fourth direction; the fourth sub driving part is used for driving the printing platform to move along a third direction.

Optionally, the number of the second sliding guide rods is two, a first connecting piece and a second connecting piece are respectively sleeved on the third guide rod and the fourth guide rod, the first connecting piece is slidably connected with the third guide rod, and the second connecting piece is slidably connected with the fourth guide rod; two ends of the second sliding guide rod are fixedly connected with the first connecting piece and the second connecting piece respectively;

the printing platform is characterized in that a third connecting piece is sleeved on the second sliding guide rod and is in sliding connection with the second sliding guide rod, and the printing platform is connected with the second sliding guide rod in a sliding manner through the third connecting piece.

Optionally, the second sliding guide bar is located between the third guide bar and the fourth guide bar and is perpendicular to the third guide bar and the fourth guide bar, respectively.

Optionally, the third sub-driving member includes a third driving motor and a fourth conveyor belt, a fourth connecting member is disposed between the first connecting member and the second connecting member, two ends of the fourth connecting member are respectively fixedly connected to the first connecting member and the second connecting member, and the fourth connecting member is fixedly connected to the printing platform;

the fourth conveyor belt is fixedly connected with the fourth connecting piece, the third driving motor is used for driving the fourth conveyor belt to rotate, and the fourth conveyor belt drives the two second sliding guide rods to move along the fourth direction through the fourth connecting piece so as to drive the printing platform to move along the fourth direction.

Optionally, the fourth sub-driving member includes a fourth driving motor and a fifth conveyor belt, the printing platform includes a fifth connecting member, and the fifth conveyor belt is fixedly connected to the fifth connecting member;

the fourth driving motor is used for driving the fifth conveyor belt to rotate, and the fifth conveyor belt drives the printing platform to move along the third direction through the fifth connecting piece.

Optionally, the lifting assembly is connected to the printing platform, and the printing platform is located between the printing head and the lifting assembly;

the lifting assembly comprises a first adjusting bracket and a second adjusting bracket which are oppositely arranged, the first adjusting bracket comprises a first adjusting rod and a second adjusting rod which are arranged in a staggered manner and are rotatably connected, the second adjusting bracket comprises a third adjusting rod and a fourth adjusting rod which are arranged in a staggered manner and are rotatably connected,

the first end of the first adjusting rod is rotatably connected with the printing platform; the first end of the second adjusting rod is rotatably connected with the printing platform, and the first end of the second adjusting rod is slidably connected with the printing platform; the first end of the third adjusting rod is rotatably connected with the printing platform; the first end of the fourth adjusting rod is rotatably connected with the printing platform, and the first end of the fourth adjusting rod is slidably connected with the printing platform;

or the first ends of the first adjusting rod and the second adjusting rod are both connected with the supporting platform, and the first ends of the third adjusting rod and the fourth adjusting rod are also connected with the supporting platform;

the lifting assembly adjusts the height of the printing platform through mutual rotation of the first adjusting rod and the second adjusting rod and mutual rotation of the third adjusting rod and the fourth adjusting rod.

Optionally, a circular through hole is formed at an intersection point of the first adjusting rod and the second adjusting rod, and a rotating shaft penetrates through the circular through hole, so that the first adjusting rod and the second adjusting rod can rotate along the rotating shaft.

Optionally, a leveling assembly is arranged between the printing platform and the supporting platform, the leveling assembly includes an adjusting plate and at least two adjusting screws, and the adjusting plate is connected with the printing platform through the at least two adjusting screws;

adjusting screw is used for adjusting the regulating plate with print platform is in the interval of adjusting screw department, in order to adjust print platform with the contained angle between the regulating plate.

Three-dimensional printing equipment in this application embodiment includes second drive assembly and lifting unit, and second drive assembly can drive print platform along the planar third direction of second and fourth direction motion, and lifting unit can drive print platform moves along the direction of height, can drive print platform along three not equidirectional motion through second drive assembly and lifting unit's cooperation, has solved print platform's moving direction comparatively single problem, does benefit to the flexibility that promotes print platform and remove.

Drawings

FIG. 1 is a schematic diagram of a part of a three-dimensional printing device according to an embodiment of the present invention;

fig. 2 is a second schematic view of a part of the structure of the three-dimensional printing apparatus according to the embodiment of the present invention;

fig. 3 is a third schematic view of a part of a three-dimensional printing apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a part of a three-dimensional printing apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a three-dimensional printing apparatus provided by an embodiment of the invention;

fig. 6 is a fifth schematic view of a partial structure of a three-dimensional printing apparatus according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention. Further, the embodiments and features of the embodiments described below may be combined with each other without conflict.

The features of the terms first and second in the description and in the claims of the invention may explicitly or implicitly include one or more of these features. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 6, an embodiment of the present invention provides a three-dimensional printing apparatus including a fixing bracket 10, a print head 20, a printing platform 30, a first driving assembly 40, and a second driving assembly 50, wherein,

the printing head 20 is connected with the fixed bracket 10 in a sliding way; the first driving assembly 40 is connected to the print head 20 to drive the print head 20 to move in a first direction;

the printing platform 30 is arranged opposite to the printing head 20, and the printing platform 30 is connected with the fixed support 10 in a sliding manner; the second driving assembly 50 is fixedly connected to the printing platform 30 to drive the printing platform 30 to move along a third direction, and the first direction and the third direction are opposite moving directions. It is understood that the first direction and the third direction may or may not be parallel. When the first direction is not parallel to the third direction, the projections of the first direction and the third direction on the same straight line or plane can move oppositely. In the present application, the first direction and the third direction are taken as parallel opposite movement directions for example.

The specific direction of the first direction is not limited. For example, the three-dimensional printing apparatus includes an x direction corresponding to an x axis, a y direction corresponding to a y axis, and a z direction corresponding to a z axis. Alternatively, the first direction may be an x direction or a y direction. It will be appreciated that the third direction changes with the first direction. Specifically, if the print head 20 moves in the positive x-direction, the print platform 30 can move in the negative x-direction; if the printing head moves towards the positive direction of the y direction, the printing platform can move towards the negative direction of the y direction; if the print head 20 moves in the positive x-direction and the positive y-direction at the same time, the print table 30 moves in the negative x-direction and the negative y-direction at the same time.

Wherein, fixed bolster 10 can be the outer frame structure of three-dimensional printing apparatus, specifically can form the equipment frame of cuboid by aluminium alloy and cold-rolled sheet assembly to guarantee the intensity and the rigidity of three-dimensional printing apparatus frame.

Generally, the print head 20 can be moved in a plane to move the vertical projection of the print head 20 on the print platform 30 of the upper print platform 30, so that the vertical projection of the print head 20 is moved to a predetermined coordinate position and the print material is dispensed by the print head 20.

In an embodiment of the present invention, the print head 20 may be slidably connected to the fixed bracket 10 and driven by the first driving assembly 40, and the first driving assembly 40 may drive the print head 20 to move in the first direction. It will be appreciated that the first drive assembly 40 may also drive the print head 20 in the second direction. I.e., the first drive assembly 40 may drive the print head 20 in two different directions. It will be appreciated that the first drive assembly 40 may drive the print head 20 to move in the first and second directions, i.e. may drive the print head 20 to move in a first plane formed by the first and second directions. It will be appreciated that the first plane may be a closed planar figure that may be shaped and sized according to the stationary bracket 10 in combination with the first drive assembly 40. A point within the print head 20, such as the center of gravity of the print head 20, may be moved within the closed planar pattern such that a vertical projection of the print head 20 onto the print platform 30 may be moved to a predetermined coordinate position. It will be appreciated that if the first drive assembly 40 can drive the print head 20 to move in the second direction, the second drive assembly 50 can drive the print platform 30 to move in a fourth direction, which is the opposite direction of movement to the second direction. It is understood that the fourth direction may or may not be parallel to the second direction. When the fourth direction is not parallel to the second direction, the projections of the fourth direction and the second direction on the same straight line or plane can move oppositely. In the present application, the fourth direction and the second direction are taken as parallel opposite movement directions for example.

The first driving assembly 40 may be fixed to the fixing bracket 10. The manner in which the first drive assembly 40 drives the print head 20 can be set according to actual needs. In some embodiments, the first drive assembly 40 may drive the movement of the print head 20 via a lead screw. In some embodiments, the first drive assembly 40 may also drive the movement of the print head 20 via gears or sliding wheels. Accordingly, the movement of the print head 20 along the first plane may include both linear and curvilinear movements, and is not further limited herein. It will be appreciated that the curved drive is achieved when the print head 20 is moved in both the first and second directions.

The printing platform 30 and the print head 20 may be arranged relative to each other such that the print head 20 is located within the printing platform 30 in a vertical projection during printing. It will be appreciated that the first drive assembly 40 may drive the print head 20 to move in a first direction and a second direction, i.e. may drive the print head 20 to move in a second plane formed by the first direction and the second direction. Wherein the second plane is parallel to the first plane. In the printing process, the common movement of the printing head 20 and the printing platform 30 completes the movement path originally completed by the printing head 20 alone, and compared with the movement of the printing head 20 and the printing platform 30 in the parallel direction which cannot be in different planes in the prior art, the printing head 20 and the printing platform 30 of the present invention can simultaneously make opposite movements in the parallel direction of the parallel planes, thereby shortening the movement time of the projection of the printing head 20 on the printing platform 30 moving to the preset position of the printing platform 30, and improving the printing efficiency.

The second driving assembly 50 may be fixed to the fixing bracket 10. Similar to the printhead 20, the second drive assembly 50 may also drive the print platform 30 to move in a second plane by means including, but not limited to, a screw drive, a gear drive, and a slider wheel drive. Accordingly, the movement manner of the printing platform 30 in the second plane may also include both linear movement and curvilinear movement, and may be specifically set according to actual needs.

According to the embodiment of the invention, the first driving component 40 is arranged to drive the printing head 20, so that the printing head 20 can move along the first direction, and the second driving component 50 is arranged to drive the printing platform 30, so that the printing platform 30 can move along the third direction, and because the first direction and the third direction are opposite movement directions, the printing platform 30 can simultaneously move opposite to the first direction when the printing head 20 moves along the first direction in the printing process, and a plane movement path originally completed by the printing head 20 alone is completed through opposite movement of the printing head 20 and the printing platform 30, so that the movement time of the projection of the printing head 20 on the printing platform 30 moving to the preset position of the printing platform 30 is shortened, and the printing efficiency is further improved.

Alternatively, the fixing bracket 10 includes a first guide bar 11 and a second guide bar 12 that are disposed opposite and in parallel, and both the first guide bar 11 and the second guide bar 12 may be fixed to the fixing bracket 10. The three-dimensional printing apparatus further comprises a first sliding guide rod 60, wherein the first sliding guide rod 60 is slidably connected with the first guide rod 11 and the second guide rod 12 respectively, that is, the first sliding guide rod 60 is connected with the fixed support 10 through the first guide rod 11 and the second guide rod 12, and the printing head 20 is slidably connected with the first sliding guide rod 60. The print head 20 slides on the first sliding guide bar 60, and the print head 20 and the first sliding guide bar 60 slide together relative to the first guide bar 11 and the second guide bar 12, so that the print head 20 moves on the first plane. Alternatively, the first sliding guide bar 60 is perpendicular to both the first guide bar 11 and the second guide bar 12. In this embodiment, the first direction and the second direction are not particularly limited. If the first direction may be the extending direction of the first slide guide bar 60, the second direction is the extending direction of the first guide bar 11 or the second guide bar 12; if the first direction may be an extending direction of the first guide bar 11 or the second guide bar 12, the second direction is an extending direction of the first slide guide bar 60. In the present embodiment, the first direction is the extending direction of the first slide guide bar 60, and the second direction is the extending direction of the first guide bar 11 or the second guide bar 12.

The first driving assembly 40 includes a first sub driving member 41 and a second sub driving member 42, the first sub driving member 41 can be disposed on the fixing bracket 10 and is used for driving the first sliding guide rod 60 to move along the second direction, so as to drive the print head 20 to move along the second direction, i.e. along the extending direction of the first guide rod 11; the second sub driving member 42 may be provided to the first slide guide bar 60 and serves to drive the print head 20 to move in a first direction, i.e., in an extending direction of the first slide guide bar 60.

Since the print head 20 in the three-dimensional printing apparatus generally performs the movement according to the coordinates of the rectangular plane coordinate system established by the printing platform 30, in the embodiment of the present invention, the first driving assembly 40 may include a first sub driving member 41 and a second sub driving member 42. The vertical projection movement of the print head 20 to the target coordinates can be achieved by driving the print head 20 in the second direction by the first sub-driver 41 and driving the print head 20 in the first direction by the second sub-driver 42.

Specifically, the fixing bracket 10 may include a first guide bar 11 and a second guide bar 12 that are disposed opposite and in parallel, and the first sliding guide bar 60 may be located between the first guide bar 11 and the second guide bar 12 and may be perpendicular to both the first guide bar 11 and the second guide bar 12, so that the first direction and the second direction may be maintained perpendicular.

The print head 20 may be slidably connected to the first slide guide bar 60, and specifically, the print head 20 may be slidable in the extending direction of the first slide guide bar 60. In this way, during the printing process, the second sub-driving member 41 can drive the first sliding guide rod 60 to slide along the extending direction of the first guide rod 11, so as to drive the print head 20 to slide along the extending direction of the first guide rod 11, and the first sub-driving member 42 can drive the print head 20 to slide along the extending direction of the first sliding guide rod 60, so as to drive the print head 20 to move along the first direction and the second direction of the first plane, respectively, so that the vertical projection of the print head 20 is moved to the target coordinate, and the printing precision is ensured.

Further, the first sub driving part 41 includes a first driving motor 411, a first conveyor belt 412 and a second conveyor belt 413; the first conveyor belt 412 and the second conveyor belt 413 are arranged on the fixed support 10 along the second direction; one end of the first sliding guide bar 60 is fixedly connected to the first conveyor belt 412, and the other end of the first sliding guide bar 60 is fixedly connected to the second conveyor belt 413.

The first driving motor 411 is connected to the first and

second conveyor belts

412 and 413, respectively, to drive the first sliding guide bar 60 to move in the second direction through the first and

second conveyor belts

412 and 413. It is understood that the first driving motor 411 may be fixed to the fixing bracket 10.

Referring to fig. 2, in the embodiment of the present invention, the first sub driving member 41 may drive the first slide guide bar 60 to move in the second direction by means of the first driving motor 411 in cooperation with the first and

second conveyor belts

412 and 413. Specifically, the first conveyor belt 412 may be disposed around the first guide bar 11 in the second direction, and both ends of the first conveyor belt 412 are fixedly connected to one ends of the first sliding guide bars 60, respectively.

The first driving motor 411 may be coupled to the first conveyor 412 and the second conveyor 413 through coupling and shaft coupling, respectively. When the first driving motor 411 works, the shaft rod rotates along with the rotating shaft of the first driving motor 411, and the friction between the shaft rod and the conveyor belts can drive the first conveyor belt 412 and the second conveyor belt 413 to move so as to drive the first sliding guide rod 60 to move along the second direction, thereby driving the printing head 20 on the first sliding guide rod 60 to move along the second direction.

In the embodiment of the present invention, the first sub driving member 41 can drive the first sliding guide rod 60 to move along the second direction by means of the driving motor cooperating with the conveyor belt, so as to drive the print head 20 to move along the second direction, thereby improving the stability of the print head 20 during the moving process, and further improving the printing precision.

Further, referring to fig. 2, both ends of the first slide guide bar 60 may be slidably coupled with the first guide bar 11 and the second guide bar 12 through sliding wheels. At least two sliding wheels may be respectively disposed at both ends of the first sliding guide bar 60, and the at least two sliding wheels at the end of the first sliding guide bar 60 clamp the first guide bar 11 or the second guide bar 12, so that the first sliding guide bar 60 slides in the second direction through the sliding wheels, thereby reducing resistance in the sliding process of the first sliding guide bar 60.

Correspondingly, the second sub-driving member 42 includes a second driving motor 421 and a third conveyor belt 422, the third conveyor belt 422 is disposed on the first sliding guide bar 60 and is arranged along the first direction, and the third conveyor belt 422 is fixedly connected with the print head 20;

the second driving motor 421 is connected to the third belt 422 to drive the print head 20 to move in the first direction by the third belt 422. It is understood that the second driving motor 421 is provided to the first slide guide bar 60.

In the embodiment of the present invention, the second sub driving member 42 may drive the print head 20 to move in the first direction by means of the second driving motor 421 in cooperation with the third belt 422.

Specifically, referring to fig. 2, the second driving motor 421 may be fixedly connected to the first sliding guide bar 60, the third belt 422 may simultaneously surround the rotating shafts of the first sliding guide bar 60 and the second driving motor 421 in the first direction, and both ends of the third belt 422 may be fixedly connected to the print heads 20, respectively.

Thus, when the second driving motor 421 works, the rotating shaft of the second driving motor 421 rotates, so as to drive the third conveyor belt 422 to move through the friction between the rotating shaft and the third conveyor belt 422, and further drive the printing head 20 fixedly connected with the third conveyor belt 422 to move along the first direction.

In the embodiment of the present invention, the second sub-driving unit 42 can drive the print head 20 to move along the first direction by means of the driving motor in cooperation with the conveyor belt, so as to improve stability of the print head 20 during the moving process, and further improve printing precision.

Further, the print head 20 may also include at least two sliding wheels, and the print head 20 may clamp the first sliding guide bar 60 through the at least two sliding wheels to achieve a sliding connection with the first sliding guide bar 60, so as to reduce resistance when the print head 20 slides in the first direction.

Optionally, the three-dimensional printing apparatus further includes a support platform 70 and a second sliding guide bar 80, the support platform 70 is slidably connected to the fixing support 10 and can slide along the height direction of the fixing support 10, the printing platform 30 is located between the support platform 70 and the print head 20 and is slidably connected to the support platform 70, and the printing platform 30 can slide along a plane parallel to the support platform 70.

The supporting platform 70 comprises a third guide rod 71 and a fourth guide rod 72 which are oppositely and parallelly arranged, the second sliding guide rod 80 is respectively connected with the third guide rod 71 and the fourth guide rod 72 in a sliding manner, namely the second sliding guide rod 80 is connected with the fixed bracket 10 through the third guide rod 71 and the fourth guide rod 72 of the supporting platform 70; the second sliding guide bar 80 is slidably connected to the printing platform 30. The printing platform 30 slides with respect to the second slide guide bar 80; the printing platform 30 and the second sliding guide rod 80 jointly slide relative to the third guide rod 71 and the fourth guide rod 72 on the support platform 70, so that the printing platform 30 slides in the second plane. The first guide rod 11, the second guide rod 12, the third guide rod 71 and the fourth guide rod 72 are parallel to each other. The first slide guide bar 60 is parallel to the second slide guide bar 80. Alternatively, the second slide guide bar 80 is perpendicular to both the third guide bar 71 and the fourth guide bar 72. In this embodiment, the third direction and the fourth direction are not particularly limited. If the third direction may be the extending direction of the second slide guide bar 80, the fourth direction is the extending direction of the third guide bar 71 or the fourth guide bar 72; if the third direction may be the extending direction of the third guide bar 71 or the fourth guide bar 72, the fourth direction is the extending direction of the second slide guide bar 80. In the present embodiment, the third direction is the extending direction of the second slide guide lever 80, and the fourth direction is the extending direction of the third guide lever 71 or the fourth guide lever 72.

The second driving assembly 50 may include a third sub driving element 51 and a fourth sub driving element 52, and the third sub driving element 51 may be fixed on the supporting platform 70 and configured to drive the second sliding guide rod 80 to move along a fourth direction, so as to drive the printing platform 30 to move along the fourth direction, where the fourth direction and the second direction are opposite movement directions; the fourth sub-driving member 52 may be fixed to the second sliding guide bar 80, and is used for driving the printing platform 30 to move along a third direction, which is the opposite moving direction to the first direction.

Similarly to the above embodiments, in the embodiment of the present invention, the second driving assembly 50 may move the printing platform 30 to the preset position coordinates by driving the printing platform 30 to move along the third direction and the fourth direction of the second plane, respectively.

Specifically, referring to fig. 3 to 4, the support platform 70 may include a third guide bar 71 and a fourth guide bar 72 that are disposed opposite and parallel, and the second sliding guide bar 80 may be located between the third guide bar 71 and the fourth guide bar 72 and perpendicular to the third guide bar 71 and the fourth guide bar 72, respectively, so that the third direction and the fourth direction described above are maintained perpendicular. Meanwhile, both ends of the second slide guide bar 80 may be slidably connected with the third guide bar 71 and the fourth guide bar 72, respectively. Thus, the second slide guide lever 80 can move in the extending direction of the third guide lever 71 or the fourth guide lever 72, i.e., the fourth direction.

The printing platform 30 may be slidably connected to the second sliding guide bar 80, specifically, the printing platform 30 may be slidable along the extending direction of the second sliding guide bar 80, and the second driving assembly 50 may include a third sub-driving member 51 and a fourth sub-driving member 52.

In this way, the third sub driving member 51 can drive the second sliding guide rod 80 to move along the fourth direction to drive the printing platform 30 on the second sliding guide rod 80 to move along the fourth direction, and the fourth sub driving member 52 can drive the printing platform 30 to move along the third direction, so that the printing platform 30 is moved to the target position by driving the printing platform 30 to move along the third direction and the fourth direction of the second plane, respectively, and the printing precision is ensured.

It should be understood that the fourth direction and the second direction are opposite movement directions, and the third direction and the first direction are opposite movement directions, so that when the print head 20 moves along the first direction, the print platform 30 can simultaneously move along the third direction and opposite movement directions of the print head 20; and/or when the printing head 20 moves along the second direction, the printing platform 30 can move oppositely to the printing head 20 along the fourth direction at the same time, so as to shorten the movement time of the vertical projection of the printing head 20 moving to the preset position of the printing platform 30, and improve the printing efficiency. It can be understood that if the fourth direction is parallel to the second direction and the third direction is parallel to the first direction, the printing efficiency can be further improved.

Further, the number of the second sliding guide rods 80 is two, the third guide rod 71 and the fourth guide rod 72 are respectively sleeved with a first connecting piece 711 and a second connecting piece 721, the first connecting piece 711 is connected with the third guide rod 71 in a sliding manner, and the second connecting piece 721 is connected with the fourth guide rod 72 in a sliding manner; both ends of the second sliding guide bar 80 are fixedly connected with the first connecting piece 711 and the second connecting piece 721 respectively;

the second sliding guide rod 80 is sleeved with a third connecting piece 81, the third connecting piece 81 is connected with the second sliding guide rod 80 in a sliding mode, and the printing platform 30 is connected with the second sliding guide rod 80 in a sliding mode through the third connecting piece 81.

In the embodiment of the present invention, the number of the second sliding guide rods 80 may be two, and the two second sliding guide rods 80 may be arranged at intervals and are both slidably connected to the printing platform 30, so that the printing platform 30 is prevented from shaking or tilting during the movement process, and the stability of the printing platform 30 during the movement process is improved.

In order to realize that the two second sliding guide rods 80 are slidably connected with the third guide rod 71 and the fourth guide rod 72, referring to fig. 4, the third guide rod 71 and the fourth guide rod 72 can be respectively sleeved with a first connecting piece 711 and a second connecting piece 721, so that two ends of the second sliding guide rod 80 can be fixedly connected with the first connecting piece 711 and the second connecting piece 721 respectively, and the second sliding guide rod 80 is driven to move along the fourth direction by the sliding of the first connecting piece 711 on the third guide rod 71 and the sliding of the second connecting piece 721 on the fourth guide rod 72.

In order to realize the sliding connection between the second sliding guide rod 80 and the printing platform 30, a third connecting member 81 can be sleeved on the second sliding guide rod 80, the third connecting member 81 can have a through hole matched with the second sliding guide rod 80 and a fixing table, the through hole of the third connecting member 81 passes through the second sliding guide rod 80, and the fixing table of the third connecting member 81 is fixedly connected with the printing platform 30, so that the printing platform 30 can slide along the extending direction of the second sliding guide rod 80 through the third connecting member 81.

The connection mode of the third connecting member 81 and the printing platform 30 can be set according to actual needs, including but not limited to, fixing by screws, welding, and fastening by slots.

In order to improve the stability of the printing platform 30 in the moving process, the third connecting members 81 on each second sliding guide rod 80 can be set to be at least two, so that the printing platform 30 and the second sliding guide rods 80 are more firmly connected by increasing the connecting points, and the phenomena of inclination or shaking and the like of the printing platform 30 in the movement along the extending direction of the second sliding guide rods 80 are avoided.

Optionally, the third sub driving element 51 includes a third driving motor 511 and a fourth conveying belt 512, a fourth connecting element 73 is disposed between the first connecting element 711 and the second connecting element 721, two ends of the fourth connecting element are respectively fixedly connected to the first connecting element 711 and the second connecting element 721, and the fourth connecting element is fixedly connected to the printing platform 30;

the fourth conveyor belt 512 is fixedly connected to the fourth connecting member 73, the third driving motor 511 can be fixed to the supporting platform 70, the third driving motor 511 is configured to drive the fourth conveyor belt 512 to rotate, and the fourth conveyor belt 512 drives the two second sliding guide rods 80 to move along the fourth direction through the fourth connecting member 73, so as to drive the printing platform 30 to move along the fourth direction.

In the embodiment of the present invention, the third sub-driving unit 51 may drive the printing platform 30 by means of the third driving motor 511 cooperating with the fourth conveyor belt 512.

Specifically, referring to fig. 4, a fourth connecting member 73 may be further disposed between the first connecting member 711 and the second connecting member 721, two ends of the fourth connecting member 73 are fixedly connected to the first connecting member 711 and the second connecting member 721, respectively, and the fourth connecting member 73 is fixedly connected to the printing platform 30. Sliding wheels may be respectively disposed on two sides of the printing platform 30, a connection line between the two sliding wheels is parallel to the third guide bar 71, the fourth conveyor belt 512 may be disposed around the two sliding wheels, and the fourth conveyor belt 512 may be fixedly connected to the fourth connecting member 73.

Thus, when the third driving motor 511 drives one of the sliding wheels to rotate through the rotating shaft, the fourth conveyor belt 512 can be moved due to the friction between the sliding wheel and the fourth conveyor belt 512, so as to drive the fourth connecting member 73 to move along the fourth direction, and thus drive the printing platform 30 to move along the fourth direction.

In the embodiment of the present invention, the fourth connecting member 73 is driven to move along the fourth direction by the way that the conveyor belt cooperates with the driving motor, and the printing platform 30 is driven to move along the fourth direction by the fourth connecting member 73, so that the stability of the printing platform 30 during movement can be further improved, and the printing precision can be improved.

Optionally, the fourth sub-driving element 52 includes a fourth driving motor 521 and a fifth conveyor belt 522, the printing platform 30 includes a fifth connecting element, and the fifth conveyor belt 522 is fixedly connected to the fifth connecting element;

the fourth driving motor 521 is configured to drive the fifth conveyor belt 522 to rotate, and the fifth conveyor belt 522 drives the printing platform 30 to move along the third direction through the fifth connecting member.

Similarly to the above-described embodiment, in the embodiment of the present invention, in order to realize the movement of the printing platform 30 in the third direction, referring to fig. 4, the fourth driving motor 521 may be disposed on the first link 711, and the first link 711 and the second link 721 may be disposed with a sliding wheel.

Meanwhile, the printing platform 30 may include a fifth link 31, the fifth conveyor belt 522 may be disposed around the two sliding wheels, and the fifth conveyor belt 522 may be fixedly connected with the fifth link 31. In this way, when the fourth driving motor 521 works, the sliding wheel on the first connecting part 711 can be driven to rotate, and the fifth conveyor belt 522 is driven to move due to the friction between the sliding wheel and the fifth conveyor belt 522, so that the printing platform 30 can be driven to move along the third direction by driving the fifth connecting part 31.

According to the embodiment of the invention, the fifth connecting piece 31 is driven to move along the third direction in a mode that the conveyor belt is matched with the driving motor, and the printing platform 30 is driven to move along the third direction through the fifth connecting piece 31, so that the stability of the printing platform 30 during movement can be further improved, and the printing precision is improved.

Optionally, a leveling assembly 90 is arranged between the printing platform 30 and the supporting platform 70, the leveling assembly 90 includes an adjusting plate 91 and at least two adjusting screws 92, and the adjusting plate 91 is connected with the printing platform 30 through the at least two adjusting screws 92;

the adjusting screw 92 is used for adjusting the distance between the adjusting plate 91 and the printing platform 30 at the position of the adjusting screw 92, so as to adjust the included angle between the printing platform 30 and the adjusting plate 91.

Referring to fig. 1, in an embodiment of the present invention, printing deck 30 may be leveled by leveling assembly 90 such that the plane of printing deck 30 is parallel to a second plane.

The leveling assembly 90 may include at least two adjusting screws 92, and when the adjusting plate 91 is rectangular, the at least two adjusting screws 92 may be disposed at corners of the adjusting plate 91, penetrate the adjusting plate 91, and are in threaded engagement with the printing platform 30.

Like this, as long as through rotating adjusting screw 92, can change adjusting screw 92 department, adjusting plate 91 and print platform 30's interval to can change the contained angle between print platform 30 and the adjusting plate 91, finally make print platform 30's plane be the horizontal plane, and then guaranteed the precision of printing.

Optionally, the three-dimensional printing apparatus further comprises a lifting assembly 100, the lifting assembly 100 is connected with the printing platform 30, and the printing platform 30 is located between the printing head 20 and the lifting assembly 100;

the lifting assembly comprises a first adjusting bracket 101 and a second adjusting bracket 102 which are oppositely arranged, and the first adjusting bracket 101 comprises a first adjusting rod 1011 and a second adjusting rod 1012 which are arranged in a staggered manner and are rotatably connected. The first end of the first adjusting rod 1011 is rotatably connected with the printing platform 30, the second end of the first adjusting rod 1011 is slidably connected with the fixed bracket 10, and the second end of the first adjusting rod 1011 is slidably connected with the fixed bracket 10; a first end of the second adjusting lever 1012 is rotatably connected to the printing platform 30, a first end of the second adjusting lever 1012 is slidably connected to the printing platform, and a second end of the second adjusting lever is rotatably connected to the fixing bracket 10.

The second adjusting bracket 102 includes a third adjusting lever 1021 and a fourth adjusting lever 1022 which are alternately disposed and rotatably connected. A first end of the third adjusting rod 1021 is rotatably connected with the printing platform 30, a second end of the third adjusting rod 1021 is rotatably connected with the fixed bracket 10, and a second end of the third adjusting rod 1021 is slidably connected with the fixed bracket 10; the first end of the fourth adjusting lever 1022 is rotatably connected to the printing platform 30, the first end of the fourth adjusting lever 1022 is slidably connected to the printing platform 30, and the second end of the fourth adjusting lever 1022 is rotatably connected to the fixing bracket 10.

When the first adjustment lever 1011 and the second adjustment lever 1012 rotate with each other and the third adjustment lever 1021 and the fourth adjustment lever 1022 rotate with each other, the vertical distance between the printing platform 30 and the printing head 20 is adjusted.

It can be understood that, in the present application, the first adjusting rod 1011 and the second adjusting rod 1012 are disposed in a staggered manner and are rotatably connected, that is, the staggered portions of the first adjusting rod 1011 and the second adjusting rod 1012 include intersection points, and the intersection points between the first adjusting rod 1011 and the second adjusting rod 101 are rotational connection points.

The third adjustment lever 1021 and the fourth adjustment lever 1022 are arranged in a staggered manner and are rotatably connected, that is, the staggered portion of the third adjustment lever 1021 and the fourth adjustment lever 1022 includes an intersection point, and the intersection point between the third adjustment lever 1021 and the fourth adjustment lever 1022 is a rotation connection point.

Generally, since the printing model has a three-dimensional structure, multi-layer printing is required in the printing process. In the embodiment of the present invention, the lifting assembly 100 is provided to change the height between the printing platform 30 and the printing head 20 by changing the height of the printing platform 30, so that the printing head 20 can perform material spraying at different heights of the printing platform 30.

Specifically, the lifting assembly 100 may include a first adjusting bracket 101 and a second adjusting bracket 102, the first adjusting bracket 101 includes a first adjusting rod 1011 and a second adjusting rod 1012 which are arranged in a staggered manner, as shown in fig. 6, the first adjusting rod 1011 and the second adjusting rod 1012 may be arranged in a substantially X-shape, and the first adjusting rod 1011 and the second adjusting rod 1012 may be rotatably connected along an intersection point therebetween, so that the height of the first adjusting bracket 101 may be adjusted by the rotation between the first adjusting rod 1011 and the second adjusting rod 1012.

It should be noted that the second adjustment lever 1012 is rotatably connected to the printing platform 30 and is also slidably connected to the printing platform 30, that is, when the second adjustment lever 1012 rotates along the intersection point between the first adjustment lever 1011 and the second adjustment lever 1012, the first end of the second adjustment lever 1012 can slide relative to the printing platform 30.

For example, in an alternative embodiment, a circular through hole may be opened at an intersection point of the first adjustment lever 1011 and the second adjustment lever 1012, and a rotation shaft passes through the circular through holes of the first adjustment lever 1011 and the second adjustment lever 1012, so that the first adjustment lever 1011 and the second adjustment lever 1012 can rotate along the rotation shaft.

Similarly, the second adjustment bracket 102 includes a third adjustment lever 1021 and a fourth adjustment lever 1022 which are alternately arranged, as shown in fig. 6, the third adjustment lever 1021 and the fourth adjustment lever 1022 may be arranged substantially in an "X" shape, and the third adjustment lever 1021 and the fourth adjustment lever 1022 may be rotatably connected along a crossing point therebetween, so that the height of the second adjustment bracket 102 is adjusted by the rotation between the third adjustment lever 1021 and the fourth adjustment lever 1022.

The fourth adjustment lever 1022 may be slidably connected to the printing platform 30 while being rotatably connected to the printing platform 30, that is, when the fourth adjustment lever 1022 is rotated along an intersection point between the third adjustment lever 1021 and the fourth adjustment lever 1022, a first end of the fourth adjustment lever 1022 may slide relative to the printing platform 30.

In an optional embodiment, circular through holes may be formed at intersections of the third adjusting lever 1021 and the fourth adjusting lever 1022, roller bearings are disposed in the circular through holes, and the rotating shaft passes through the circular through holes of the third adjusting lever 1021 and the fourth adjusting lever 1022, so that the third adjusting lever 1021 and the fourth adjusting lever 1022 may rotate along the rotating shaft.

In an alternative embodiment, the first ends of the first adjustment lever 1011 and the second adjustment lever 1012 may also be connected to the support platform 70 to enable connection to the printing platform 30, and the first ends of the third adjustment lever 1021 and the fourth adjustment lever 1022 may also be connected to the support platform 70 to enable connection to the printing platform 30.

Thus, when the first adjustment lever 1011 and the second adjustment lever 1012 rotate along the intersection point, the first end of the first adjustment lever 1011 and the first end of the second adjustment lever 1012 also rotate simultaneously, and the first end of the second adjustment lever 1012 slides relative to the print platform 30, while the third adjustment lever 1021 and the fourth adjustment lever 1022 rotate along the intersection point, the first end of the third adjustment lever 1021 and the first end of the fourth adjustment lever 1022 also rotate simultaneously, and the first end of the fourth adjustment lever 1022 slides relative to the print platform 30. In this way, the printing platform 30 can adjust the height of the printing platform 30 along with the expansion or contraction of the first adjusting bracket 101 and the second adjusting bracket 102, that is, the vertical distance between the printing platform 30 and the printing head 20 is adjusted, so that the lifting adjustment of the printing platform 30 is realized.

In the embodiment of the present invention, the first adjusting bracket 101 of the lifting assembly 100 is configured to include the first adjusting lever 1011 and the second adjusting lever 1012 which are arranged in a staggered manner, and the second adjusting bracket 102 is configured to include the third adjusting lever 1021 and the fourth adjusting lever 1022 which are arranged in a staggered manner, so that the lifting assembly 100 can adjust the height of the lifting assembly 100 according to the rotation between the first adjusting lever 1011 and the second adjusting lever 1012 and the rotation between the third adjusting lever 1021 and the fourth adjusting lever 1022, thereby adjusting the vertical distance between the printing platform 30 and the printing head 20. Like this, through the design of the regulation support of cutting the fork, first regulation pole 1011, second regulation pole 1012, third regulation pole 1021 and fourth regulation pole 1022 can support print platform 30 simultaneously, and print platform 30 can bear bigger power for can print bigger model, and can make print platform 30 atress at the lift in-process more balanced, promoted print platform 30 stability at the lift in-process.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of terms does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The three-dimensional printing equipment is characterized by comprising a fixed bracket, a printing head, a printing platform, a second driving component and a lifting component, wherein,

the lifting assembly is connected with the printing platform to drive the printing platform to move along the height direction, and the height direction is intersected with the second plane.

2. The three-dimensional printing apparatus according to claim 1,

the three-dimensional printing equipment further comprises a second sliding guide rod, the second sliding guide rod extends along the third direction, the second sliding guide rod is connected with the fixed support, and the printing platform is connected with the second sliding guide rod in a sliding mode; the second driving component is used for driving the printing platform to move along a third direction.

3. The three-dimensional printing apparatus according to claim 2,

the three-dimensional printing equipment further comprises a supporting platform, and the supporting platform is connected with the fixed support;

the supporting platform comprises a third guide rod and a fourth guide rod which are oppositely and parallelly arranged, and the second sliding guide rod is respectively connected with the third guide rod and the fourth guide rod in a sliding manner; the second sliding guide rod is connected with the printing platform in a sliding mode, and the printing platform is located between the supporting platform and the printing head;

the second driving assembly comprises a third sub-driving piece and a fourth sub-driving piece, and the third sub-driving piece is used for driving the second sliding guide rod to move along a fourth direction so as to drive the printing platform to move along the fourth direction; the fourth sub-driving part is used for driving the printing platform to move along a third direction.

4. The three-dimensional printing device according to claim 3, wherein the number of the second sliding guide rods is two, a first connecting piece and a second connecting piece are respectively sleeved on the third guide rod and the fourth guide rod, the first connecting piece is connected with the third guide rod in a sliding manner, and the second connecting piece is connected with the fourth guide rod in a sliding manner; two ends of the second sliding guide rod are fixedly connected with the first connecting piece and the second connecting piece respectively;

5. The three-dimensional printing apparatus according to claim 3, wherein the second sliding guide bar is located between the third guide bar and the fourth guide bar and is perpendicular to the third guide bar and the fourth guide bar, respectively.

6. The three-dimensional printing device according to claim 3, wherein the third sub-driving member comprises a third driving motor and a fourth conveyor belt, a fourth connecting member is arranged between the first connecting member and the second connecting member, two ends of the fourth connecting member are respectively fixedly connected with the first connecting member and the second connecting member, and the fourth connecting member is fixedly connected with the printing platform;

7. The three-dimensional printing apparatus according to claim 3, wherein the fourth sub-driver comprises a fourth driving motor and a fifth conveyor belt, and the printing platform comprises a fifth connecting member, and the fifth conveyor belt is fixedly connected with the fifth connecting member;

8. The three-dimensional printing apparatus of claim 1, wherein the lift assembly is coupled to the printing platform, the printing platform being positioned between the print head and the lift assembly;

9. The three-dimensional printing apparatus according to claim 8, wherein a circular through hole is formed at an intersection of the first adjusting lever and the second adjusting lever, and a rotating shaft penetrates through the circular through hole, so that the first adjusting lever and the second adjusting lever can rotate along the rotating shaft.

10. The three-dimensional printing apparatus according to claim 3, wherein a leveling assembly is disposed between the printing platform and the supporting platform, the leveling assembly includes an adjusting plate and at least two adjusting screws, and the adjusting plate is connected with the printing platform through at least two adjusting screws;

adjusting screw is used for adjusting the regulating plate with print platform is in the interval of adjusting screw department, in order to adjust print platform with contained angle between the regulating plate.