CN216300188U - Three-dimensional printing equipment - Google Patents
Three-dimensional printing equipment Download PDFInfo
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- CN216300188U CN216300188U CN202121750765.9U CN202121750765U CN216300188U CN 216300188 U CN216300188 U CN 216300188U CN 202121750765 U CN202121750765 U CN 202121750765U CN 216300188 U CN216300188 U CN 216300188U
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- limiting member
- limiting
- arm
- supporting arm
- dimensional printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/245—Platforms or substrates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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Abstract
The utility model provides three-dimensional printing equipment which comprises a supporting arm, a leveling assembly and a printing platform, wherein the leveling assembly comprises a first limiting piece and a first connecting piece, the first limiting piece is connected with the supporting arm in a sliding mode, one end of the first connecting piece is a rotating connecting part, the rotating connecting part is connected with the supporting arm, and the other end of the first connecting piece is connected with the printing platform; the first limiting part can move between a first position and a second position, the first limiting part and the supporting arm are matched and fixed at the first position, and the rotating connecting part is rotatably connected with the supporting arm at the second position. The embodiment of the utility model can improve the leveling precision of the printing platform of the three-dimensional printing equipment.
Description
Technical Field
The utility model relates to the technical field of three-dimensional printing, in particular to three-dimensional printing equipment.
Background
A 3D printing apparatus, also called a three-dimensional printing apparatus (3D), is a machine of an accumulative manufacturing technique, i.e., a rapid prototyping technique, which is based on a digital model file, and manufactures a three-dimensional object by sequentially printing a plurality of layers of adhesive materials using a special wax material, a powdered metal, or plastic, etc., which are adhesive materials.
In the process of printing by using the photocuring 3D printer, the printing platform and a Liquid Crystal Display (LCD) screen below the printing platform need to be aligned and attached to print a standard object, so that the printing platform needs to be leveled. At present, a leveling mode for a printing platform is generally that threaded holes are formed in multiple positions on the printing platform, and the heights of the printing platform at all positions are adjusted through the threaded holes and the adjusting nuts, however, the adjusting nuts at multiple positions need to be rotated in the operation process, and the rotating angles of the adjusting nuts are difficult to ensure to be consistent, so that the leveling error is large, and a screen is easily damaged in the operation process. It can be seen that the leveling mode of the existing three-dimensional printing equipment printing platform has lower precision.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides three-dimensional printing equipment, which aims to improve the precision of a leveling mode of a printing platform of the three-dimensional printing equipment.
The embodiment of the utility model provides three-dimensional printing equipment, which comprises a supporting arm, a leveling component and a printing platform, wherein,
the leveling assembly comprises a first limiting part and a first connecting part, the first limiting part is connected with the supporting arm in a sliding mode, one end of the first connecting part is a rotating connecting part, the rotating connecting part is connected with the supporting arm, and the other end of the first connecting part is connected with the printing platform;
the first limiting part can move between a first position and a second position, the first limiting part and the supporting arm are matched and fixed at the first position, and the rotating connecting part is rotatably connected with the supporting arm at the second position.
Optionally, the leveling assembly further includes a displacement transmission element and a second limiting element, the second limiting element is fixedly connected to the support arm, the rotation connection portion is located between the first limiting element and the second limiting element, and the displacement transmission element is connected to the first limiting element to drive the first limiting element to move between a first position and a second position;
in the first position, the first limiting piece and the second limiting piece are both abutted to the rotating connecting part; in the second position, the rotation connecting portion may rotate between the first limiting member and the second limiting member.
Optionally, the first limiting member is a screw, in the first position, one end of the first limiting member passes through the first connecting member and is in threaded connection with the support arm, and in the second position, the first limiting member is separated from the fixation with the support arm.
Optionally, the support arm is provided with a sliding groove, and the first limiting member is located in the sliding groove and can slide in the sliding groove.
Optionally, the displacement transmission piece includes jackscrew and kicking block, first screw hole has been seted up to the support arm, first screw hole with the sliding tray intercommunication, the kicking block is located the sliding tray to with first locating part butt, the jackscrew pass first screw hole, and with kicking block fixed connection.
Optionally, a side of the top block facing the first limiting member is a first guiding inclined surface, a side of the first limiting member facing the top block is a second guiding inclined surface, the first guiding inclined surface is at least partially attached to the second guiding inclined surface, and the first guiding inclined surface is in sliding contact with the second guiding inclined surface.
Optionally, the first limiting member is recessed inwards towards a side surface of the rotating connection portion to form a first curved surface accommodating cavity, and the second limiting member is recessed inwards towards a side surface of the first curved surface accommodating cavity to form a second curved surface accommodating cavity; the rotary connecting part is arranged in a spherical shape and is positioned between the first curved surface accommodating cavity and the second curved surface accommodating cavity;
in the first position, two sides of the rotary connecting part are respectively abutted against the inner wall of the first curved surface accommodating cavity and the inner wall of the second curved surface accommodating cavity; in the second position, the rotating connecting part can rotate in a space formed by the first curved surface accommodating cavity and the second curved surface accommodating cavity in an enclosing mode.
Optionally, the first connecting piece further includes a cylindrical connecting portion, the cylindrical connecting portion is fixedly connected to the rotating connecting portion, the second limiting member is provided with a first through hole, the first through hole is communicated with the second curved surface accommodating cavity, and the cylindrical connecting portion passes through the first through hole and is connected to the printing platform;
the inner diameter of the first through hole is larger than the outer diameter of the cylindrical connecting part.
Optionally, an annular step portion is provided in the first through hole, and an elastic member is provided between the annular step portion and the rotation connecting portion.
Optionally, the three-dimensional printing apparatus further includes a second connecting member, and the second connecting member is detachably connected to the leveling assembly and the printing platform, respectively;
the second connecting piece comprises a connecting block, wherein an accommodating groove is formed in the connecting block, the groove shape of the accommodating groove is matched with the cylindrical connecting part, and at least part of the cylindrical connecting part is accommodated in the accommodating groove.
Optionally, the outer wall of the cylindrical connecting part is provided with a positioning hole;
the connecting block is provided with a second threaded hole corresponding to the position of the positioning hole, and a first screw penetrates through the second threaded hole and the positioning hole in sequence and is in threaded connection with the second threaded hole.
Optionally, the second connecting piece further comprises a connecting bracket, the connecting bracket comprises a first connecting arm, a second connecting arm and a fixing plate, one end of the first connecting arm is connected with the fixing plate, the other end of the first connecting arm is connected with the printing platform, one end of the second connecting arm is connected with the fixing plate, and the other end of the second connecting arm is connected with the printing platform; the connecting block clamp is located first linking arm with between the second linking arm, just the connecting block with the fixed plate can be dismantled and be connected.
In the embodiment of the utility model, the three-dimensional printing equipment is provided with the leveling component, the leveling component comprises a first connecting piece and a first limiting piece, the first limiting piece can move between a first position and a second position, when the first limiting piece is at the first position, the first limiting piece is matched with the supporting arm to fix the rotating connecting part, the printing platform is fixed with the supporting arm through the leveling component, when the first limiting piece is at the second position, the rotating connecting part is rotatably connected with the supporting arm, and the printing platform is rotatably connected with the supporting arm through the leveling component. Like this, move at primary importance and second position through first locating part to realize or remove the fixed to the swivelling joint portion, can be connected with the rotation in order to realize fixing between print platform and the support arm, and print platform can realize the leveling through the pivoted mode, has promoted the precision of print platform leveling.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
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 an exploded view of a part of the structure of a three-dimensional printing apparatus provided by an embodiment of the present invention;
FIG. 3 is one of schematic cross-sectional views of a three-dimensional printing apparatus provided by an embodiment of the utility model;
FIG. 4 is an enlarged view of a portion of FIG. 3;
fig. 5 is a second schematic cross-sectional view of a three-dimensional printing apparatus according to an embodiment of the utility model;
FIG. 6 is an enlarged partial view of FIG. 5;
FIG. 7 is a second schematic diagram of a partial structure of a three-dimensional printing apparatus according to an embodiment of the present invention;
fig. 8 is a third 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 the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar 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. Without conflict, the embodiments and features of the embodiments described below may be combined with each other. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The features of the terms first and second in the description and in the claims of the utility model 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 "/" generally means that a preceding and succeeding 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 utility model 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 utility model.
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, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of terms in the present invention can be understood in specific instances.
Referring to fig. 1 to 8, an embodiment of the present invention provides a three-dimensional printing apparatus including a support arm 10, a leveling assembly 20, and a printing platform 30, wherein,
the leveling component 20 comprises a first connecting piece 22 and a first limiting piece 23, the first limiting piece 23 is connected with the supporting arm 10 in a sliding manner, one end of the first connecting piece 22 is a rotating connecting part 221, the rotating connecting part is connected with the supporting arm, and the other end of the first connecting piece is connected with the printing platform;
the first limiting member 23 can move between a first position and a second position, in the first position, the first limiting member 23 is matched with the support arm 10 to fix the rotation connecting portion 221, and in the second position, the rotation connecting portion 221 is rotatably connected with the support arm 10.
In the embodiment of the present invention, referring to fig. 1, fig. 1 is a partial structural schematic diagram of a three-dimensional printing apparatus provided in the embodiment of the present invention, wherein a supporting arm 10 can slide on a vertically arranged guide rail 40 through a linear slider, so as to drive a printing platform 30 to approach or move away from an exposure screen 50. In the working process of the three-dimensional printing device, the printing platform 30 is firstly attached to the bottom end of a material containing box arranged on the exposure screen 50, then the printing platform 30 is gradually far away from the exposure screen 50 through the traction of a stepping motor, and materials in the material containing box are gradually molded through the matching of the printing platform 30 and the exposure screen 50 due to the photocuring effect. Therefore, before the three-dimensional printing apparatus starts to work, the printing platform 30 needs to be adjusted to a position where the printing platform is smoothly attached to the bottom end of the material containing box arranged on the exposure screen 50 and fixed, so that deviation in the printing process is avoided.
In order to achieve leveling, in the embodiment of the present invention, the leveling component 20 may be disposed between the supporting arm 10 and the printing platform 30, and two ends of the leveling component are respectively connected to the supporting arm 10 and the printing platform 30, and the printing platform 30 may be connected to the supporting arm 10 through the leveling component 20.
The leveling assembly 20 includes a first connecting member 22 and a first retaining member 23, and it should be understood that, in order to enable the printing platform 30 to rotate relative to the supporting arm 10 through the leveling assembly 20, the rotating connecting portion 221 of the first connecting member 22 can rotate relative to the supporting arm 10, for example, a rotating cavity can be provided on one side of the supporting arm 10, so that the rotating connecting portion 211 can rotate in the rotating cavity. Because the end of the first connecting member 22 opposite to the rotating connecting portion 221 is fixedly connected to the printing platform 30, when the rotating connecting portion 221 rotates, the end of the first connecting member 22 opposite to the rotating connecting portion 221 drives the printing platform 30 to rotate relative to the supporting arm 10, so that the relative position between the printing platform 30 and the supporting arm 10 can be adjusted, and the leveling effect of the printing platform 30 is achieved.
Specifically, in some embodiments, the rotation connecting portion 221 of the first connecting member 22 may be disposed in a spherical shape, and the rotation connecting portion 221 may rotate in a space between the first limiting member 23 and the second limiting member 24. In some embodiments, the rotation connecting portion 221 may also be provided with a rotating shaft, and the rotating shaft of the rotation connecting portion 221 cooperates with the shaft hole provided by the first limiting member 23 and/or the second limiting member 24 to realize the relative rotation between the printing platform 30 and the supporting arm 10, which is not further listed here.
Further, in order to realize the fixation of the printing platform 30 after leveling, the first limiting member 23 is slidably connected to the supporting arm 10 and can move between a first position and a second position, and in the first position, a gap may exist between the first limiting member 23 and the rotation connecting portion 211, so that the rotation connecting portion can rotate in a space between the printing platform 30 and the supporting arm 10; at the second position, the first limiting member 23 may abut against the rotation connecting portion 211, and may push the rotation connecting portion 211 to be relatively fixed to the supporting arm, for example, abut against a limiting member disposed at one end of the supporting arm, so as to limit the rotation and displacement of the rotation connecting portion 211, thereby fixing the printing platform 30 and the supporting arm 10.
Specifically, when the first limiting member 23 is located at the first position, referring to fig. 3 to 4, and fig. 3 to 4 are schematic structural diagrams of the first limiting member located at the first position, at this time, the first limiting member 23 abuts against the rotation connecting portion 221, and pushes the rotation connecting portion 221 to abut against a limiting member arranged at one end of the supporting arm, so as to limit the rotation of the rotation connecting portion 221, so that the printing platform 30 is fixed to the supporting arm 10 through the leveling assembly 20.
When the first limiting member 23 is located at the second position, referring to fig. 5 to 6, and fig. 5 to 6 are schematic structural views of the first limiting member located at the second position, at this time, the first limiting member 23 can be used for rotating the rotating connection portion 221, and the rotation of the rotating connection portion 221 drives the printing platform 30 to rotate relative to the support arm 10, so that the angle between the printing platform 30 and the support arm 10 can be adjusted, and the leveling of the printing platform 30 is realized.
The connection mode between the first limiting member 23 and the supporting arm 10 can be set according to actual needs. For example, in some embodiments, the supporting arm 10 may have a sliding slot 11 formed therein, and the first retaining member 23 may be movable between a first position and a second position of the sliding slot 11. In some embodiments, a sliding bracket may be disposed outside the supporting arm 10, and the first retaining member 23 may be movable between a first position and a second position of the sliding bracket.
It is understood that the first position and the second position may be determined according to specific structures, for example, the first position may be two ends of a sliding slot 11 formed in the support arm 10, two ends of a sliding bracket disposed outside the support arm 10, or the like, and is not limited herein.
In an embodiment of the present invention, the three-dimensional printing apparatus is provided with the leveling assembly 20, because the leveling assembly 20 includes the first connecting member 22 and the first limiting member 23, the first limiting member 23 can move between a first position and a second position, when the first limiting member 23 is at the first position, the first limiting member 23 and the supporting arm 10 cooperate to fix the rotating connection portion 221, the printing platform 30 and the supporting arm 10 are fixed by the leveling assembly 20, when the first limiting member 23 is at the second position, the rotating connection portion 221 can be rotatably connected with the supporting arm 10, and the printing platform 30 and the supporting arm 10 are rotatably connected by the leveling assembly 20. In this way, the first limiting member 23 moves between the first position and the second position to fix or release the rotating connection portion 221, that is, the printing platform 30 and the support arm 10 can be fixed and rotatably connected, and the printing platform 30 can be leveled in a rotating manner, so that the leveling convenience of the printing platform 30 is improved.
Optionally, the leveling assembly 20 further includes a displacement transmission member 21 and a second limiting member 24, the second limiting member 24 is fixedly connected to the support arm 10, the rotation connection portion 221 is located between the first limiting member 23 and the second limiting member 24, and the displacement transmission member 21 is connected to the first limiting member 23 to drive the first limiting member 23 to move between the first position and the second position;
in the first position, the first limiting member 23 and the second limiting member 24 are both abutted against the rotation connecting portion 221; in the second position, the rotation connecting portion 221 is rotatable between the first limiting member 23 and the second limiting member 24.
In an embodiment of the present invention, referring to fig. 3 to 6, the leveling assembly 20 may further include a displacement transmission member 21 and a second limiting member 24, wherein the displacement transmission member 21 is configured to transmit a displacement thereof to the first limiting member 23, so as to drive the first limiting member 23 to displace. Specifically, the displacement transmitter 21 may be slidably connected to the support arm 10, and the displacement transmitter 21 may be displaced by a push-pull force, but of course, the displacement transmitter 21 may be threadedly engaged with the support arm 10, so that the displacement transmitter 21 is displaced by rotating the displacement transmitter 21.
The connection manner of the displacement transmission member 21 and the first limiting member 23 includes, but is not limited to, fixed connection and sliding connection. In a specific embodiment, the displacement transmission member 21 may be fixedly connected to the first limiting member 23, so that the displacement of the displacement transmission member 21 can drive the first limiting member 23 to displace integrally; of course, in other alternative embodiments, the displacement transmission member 21 may also be abutted or slidably connected to the first limiting member 23, and the first limiting member is driven to move by the interaction force between the displacement transmission member 21 and the first limiting member 23.
Specifically, referring to fig. 3 to 6, in an embodiment, the displacement transmission member 21 is movable between a third position and a fourth position, when the displacement transmission member 21 is located at the third position, the first limiting member 23 is displaced to the first position, and when the displacement transmission member 21 is located at the fourth position, the first limiting member 23 is displaced to the second position.
It should be understood that the displacement transmission member 21 may be partially disposed outside the support arm 10 and may be connected to a handle, so that the user may rotate or push the handle to displace the displacement transmission member 21.
The second limiting member 24 is used for cooperating with the first limiting member 23 to fix the rotating connection portion 221. Because the second limiting member 24 is fixedly connected to the supporting arm 10, and the rotation connecting portion 221 is displaced between the first limiting member 23 and the second limiting member 24, when the first limiting member 23 is located at the first position, the first limiting member 23 can push the rotation connecting portion 221 to abut against the second limiting member 24, so as to fix the rotation connecting portion 221, and when the first limiting member 23 is located at the second position, the space between the first limiting member 23 and the second limiting member 24 can be used for the rotation connecting portion 221 to rotate, so as to enable the supporting arm 10 and the printing platform to rotate relatively.
In the embodiment of the present invention, the displacement transmission member 21 is arranged to drive the first limiting member 23 to displace, so as to play a role in buffering, thereby avoiding damage to the three-dimensional printing apparatus caused by a large force applied during operation of a user, and meanwhile, the rotation connection portion 221 can be clamped and fixed by the cooperation of the first limiting member 23 and the second limiting member 24, thereby improving stability during fixing.
Optionally, the first limiting member 23 is a screw, in the first position, one end of the first limiting member 23 passes through the first connecting member 22 and is in threaded connection with the support arm 10, and in the second position, one end of the first limiting member 23 is separated from being fixed to the support arm 10.
In an embodiment of the present invention, referring to fig. 7, the first limiting member 23 may be a screw, and the first connecting member 22 may be disposed in a hollow cylinder, that is, the first connecting member 22 may have a through hole for the first limiting member 23 to pass through. When the first limiting member 23 is located at the first position, the first limiting member 23 can pass through the through hole of the first connecting member 22 and be in threaded connection with the screw hole on the support arm 10, so that the rotating connection portion 221 can be fixed with the support arm 10 by a screw. When the first limiting member 23 is located at the second position, the first limiting member 23 can be disengaged from the screw hole of the support arm 10, so that the rotating connection portion 221 is rotatably connected to the support arm 10.
It can be understood that, in the process of using the first limiting member 23, a user can rotate the first limiting member 23 to make the first limiting member 23 move between the first position and the second position, so as to fix and release the rotating connection portion. Thus, since the first position-limiting member 23 is a screw, the screw can be rotated by the through hole to better control the displacement distance of the first position-limiting member 23, thereby avoiding the damage to the device caused by the overlarge displacement distance of the first position-limiting member 23.
Optionally, the supporting arm 10 is provided with a sliding slot 11, and the first limiting member 23 is located in the sliding slot 11 and can slide in the sliding slot 11.
In the embodiment of the present invention, the sliding groove 11 may be opened on the outer surface of the supporting arm 10, that is, the sliding groove may extend along any direction of the outer surface of the supporting arm 10, and of course, the sliding groove 11 may also be opened in the supporting arm 10, for example, the sliding groove 11 is opened inward from one side surface of the supporting arm 10. Referring to fig. 1, in a specific embodiment, in order to reduce the space occupation, the sliding slot 11 may be opened in the supporting arm 10, that is, a channel is formed inside the supporting arm 10, and the first limiting member 23 is located in the sliding slot 11 so as to be movable between the first position and the second position of the sliding slot 11.
Optionally, the displacement transmission member 21 includes a top thread 211 and a top block 212, the support arm 10 is provided with a first threaded hole 12, an opening at one end of the first threaded hole 12 is disposed on one side surface of the support arm 10, an opening at the other end is disposed on an inner wall of the sliding groove 11, so that the first threaded hole 12 can communicate with the sliding groove 11, the top block 212 is located in the sliding groove 11 and abuts against the first limiting member 23, and the top thread 211 passes through the first threaded hole 12 and is fixedly connected to the top block 212.
In an embodiment of the present invention, the displacement transmission member 21 may include a top screw 211 and a top block 212, the top screw 211 and the top block 212 are rotatably connected, the top screw 211 has a screw thread, so that the top screw 211 may be engaged with the first threaded hole 12, and a user may rotate the top screw 211 to screw the top screw 211 into the first threaded hole 12, so as to push the top block 212 to move, and further drive the first limiting member 23 to move.
As can be seen from the above, the displacement transmission member 21 is movable between a third position and a fourth position, and referring to fig. 3, when the displacement transmission member 21 is located at the third position, the first limiting member 23 is displaced to the first position, and referring to fig. 5, when the displacement transmission member 21 is located at the fourth position, the first limiting member 23 is displaced to the second position.
It should be understood that, in the embodiment of the present invention, the position where the displacement transmission member 21 is disposed may be determined according to the actual connection structure, such as the groove type of the sliding groove 11, the length of the jackscrew 211, and the length of the first threaded hole 12. When the displacement transmission member 21 is located at the third position, referring to fig. 3 to 4, the jackscrew 211 is completely screwed into the first threaded hole 12; when the displacement transmission member 21 is located at the fourth position, referring to fig. 5 to 6, the top block 212 may abut against the upper surface of the slide groove 11.
Because jackscrew 211 and first screw hole 12 are screw-thread fit, consequently the user adjusts the position of first locating part 23 through rotatory jackscrew 211, with the linear motion of the rotation conversion kicking block 212 of jackscrew 211, for can promoting the adjustment accuracy, avoid first locating part 23 when contacting first connecting piece 22 simultaneously, the too big damage of atress has prolonged three-dimensional printing apparatus's life.
Further, the top of the jackscrew 211 can also be provided with a fixed cover 213, and when the displacement transmission piece 21 is located the third position, the fixed cover 213 can be screwed with the support arm 10 and be fixed on the top of the jackscrew 211, thereby avoiding the jackscrew 211 to move after being fixed, and further avoiding the printing platform 30 and the support arm 10 to move relatively.
Further, a side surface of the top block 212 facing the first limiting member 23 is a first guiding inclined surface, a side surface of the first limiting member 23 facing the first guiding inclined surface is a second guiding inclined surface, the first guiding inclined surface and the second guiding inclined surface are at least partially attached to each other, and the first guiding inclined surface and the second guiding inclined surface are in sliding contact.
In the embodiment of the present invention, in order to further improve the adjustment accuracy and play a role in buffering during adjustment, a side surface of the top block 212 facing the first limiting member 23 may be a first guiding inclined surface, and a side surface of the first limiting member 23 facing the first guiding inclined surface may be a second guiding inclined surface, and through cooperation between the first guiding inclined surface and the second guiding inclined surface, vertical motion of the jackscrew 211 may be converted into horizontal motion of the top block 212, as shown in fig. 3 to 6, the displacement transmission member 21 and the first limiting member 23 may be vertically arranged with respect to each other, so as to facilitate arrangement of the displacement transmission member 21, and when a user rotates the jackscrew 211, through cooperation between the two guiding inclined surfaces of the top block 212 and the first limiting member 23, a buffering effect is further played during adjustment, and a service life of the three-dimensional printing apparatus is prolonged.
Optionally, the first limiting member 23 is recessed inwards towards the side of the rotation connecting portion 221 to form a first curved surface accommodating cavity, and the second limiting member 24 is recessed inwards towards the side of the first curved surface accommodating cavity to form a second curved surface accommodating cavity; the rotating connecting part 221 is arranged in a spherical shape, and the rotating connecting part 221 is positioned between the first curved surface accommodating cavity and the second curved surface accommodating cavity;
in the first position, two sides of the rotary connecting part 221 are respectively abutted against the inner wall of the first curved surface accommodating cavity and the inner wall of the second curved surface accommodating cavity; in the second position, the rotation connecting portion 221 can rotate in the space enclosed by the first curved receiving cavity and the second curved receiving cavity.
In the embodiment of the present invention, the rotation connecting portion 221 may be disposed in a spherical shape, and the positions of the first limiting member 23 and the second limiting member 24 facing the rotation connecting portion 221 are both recessed inwards to form a curved receiving cavity.
In order to prevent the rotation connecting portion 221 from relatively rotating when the first limiting member 23 is located at the first position, referring to fig. 3 to 4, and fig. 3 to 4 are schematic structural diagrams of the first limiting member located at the first position, an inner wall of a first curved surface receiving cavity of the first limiting member 23 is attached to at least a portion of a curved surface of the rotation connecting portion 221, and an inner wall of a second curved surface receiving cavity of the second limiting member 24 is also attached to a portion of a curved surface of the rotation connecting portion 221, so that the rotation connecting portion 221 is clamped between the first limiting member 23 and the second limiting member 24, and the rotation of the rotation connecting portion 221 is limited.
When the first limiting member 23 is located at the second position, referring to fig. 5 to 6, and fig. 5 to 6 are schematic structural views of the first limiting member located at the second position, a gap exists between the rotating connection portion 221 and the inner wall of the first curved surface accommodating cavity and/or the inner wall of the second curved surface accommodating cavity, so that the rotating connection portion 221 can rotate between the first limiting member 23 and the second limiting member 24.
In the embodiment of the present invention, the rotation connecting portion 221 is set to be spherical, and the first limiting member 23 and the second limiting member 24 are respectively provided with the first curved surface accommodating cavity and the second curved surface accommodating cavity, so that when the first limiting member 23 is located at the first position, the rotation connecting portion 221 is fixed more firmly, and when the first limiting member 23 is located at the second position, the rotation connecting portion 221 rotates more smoothly, thereby improving the user experience.
Optionally, the first connecting element 22 further includes a cylindrical connecting portion 222, the cylindrical connecting portion 222 is fixedly connected to the rotating connecting portion 221, the second limiting member 24 is provided with a first through hole 241, the first through hole 241 is communicated with the second curved surface accommodating cavity, and the cylindrical connecting portion 222 passes through the first through hole 241 and is connected to the printing platform 30;
the first through hole 241 has an inner diameter larger than an outer diameter of the cylindrical connection portion 222.
Since the other end of the first connecting member 22 opposite to the rotating connecting portion 221 needs to be fixedly connected to the printing platform 30, so that the rotation of the first connecting member 22 can drive the printing platform 30 to rotate, in the embodiment of the present invention, referring to fig. 1, the first connecting portion may further include a cylindrical connecting portion 222, an opening of one end of the first through hole 241 may be located at the bottom of the second curved surface accommodating cavity, an opening of the other end may be located on a side surface of the second limiting member 24 opposite to the second curved surface accommodating cavity, and the cylindrical connecting portion 222 passes through the first through hole 241 formed in the second limiting member 24 and is fixedly connected to the printing platform 30. The shape of the cylindrical connection portion 222 can be set according to actual needs, including but not limited to prisms and cylinders. Generally, in order to increase the rotation angle, the cylindrical connection portion 222 may be provided in a cylindrical shape, and the outer diameter of the cylindrical connection portion 222 may be smaller than that of the rotation connection portion 221.
It should be understood that, since the rotation of the rotation connecting portion 221 drives the cylindrical connecting portion 222 to rotate, in order to provide a rotation space for the cylindrical connecting portion 222, the inner diameter of the first through hole 241 may be larger than the outer diameter of the cylindrical connecting portion 222.
Further, an annular step 2411 is formed in the first through hole 241, and an elastic member 242 is disposed between the annular step 2411 and the rotation connecting portion 221.
In the embodiment of the present invention, in order to enable the first position-limiting member 23 to automatically return to the second position when the displacement transmission member 21 is located at the fourth position, referring to fig. 6, an annular step 2411 may be disposed in the first through hole 241 of the second position-limiting member 24 to lock the elastic member 242. The elastic member 242 is located between the annular step 2411 and the rotary joint 221, and may abut against the annular step 2411 and the rotary joint 221, respectively. When the displacement transmission member 21 is at the first position and the first limiting member 23 is at the first position, the elastic member 242 may be in a compressed state, and when the displacement transmission member 21 is at the second position, the elastic restoring force of the elastic member 242 may push the rotation connection portion 221 to move, so as to push the first limiting member 23 to move to the second position.
Specifically, the elastic member 242 may be a spring, and the spring may be sleeved on the cylindrical connection portion 222, so that the spring is prevented from falling off during the adjustment process.
Optionally, the three-dimensional printing apparatus further includes a second connector 60, and the second connector 60 is detachably connected to the leveling assembly 20 and the printing platform 30, respectively;
the second connecting member 60 includes a connecting block 61, and the connecting block 61 has a receiving groove, the receiving groove is adapted to the cylindrical connecting portion 222, and at least a portion of the cylindrical connecting portion 222 is received in the receiving groove.
In an embodiment of the present invention, in order to facilitate the detachment of the leveling assembly 20 and the printing platform 30, the three-dimensional printing apparatus may further include a second connecting member 60, and referring to fig. 2 to 6, the second connecting member 60 may include a connecting block 61, and the detachable connection with the leveling assembly 20 is achieved through an accommodating groove provided inside the connecting block 61.
It can be understood that, a side surface of the connecting block 61 facing the cylindrical connecting portion 222 may be provided with an accommodating groove in an extending direction of the cylindrical connecting portion 222, and the cylindrical connecting portion 222 may be partially accommodated in the accommodating groove, so as to further reduce the space occupation of the overall structure.
The connection mode of the cylindrical connection part 222 and the second connection member 60 can be set according to actual needs. For example, in a specific embodiment, the cylindrical connecting portion 222 and the second connecting member 60 can be connected by screw-fitting screw holes, so that the cylindrical connecting portion 222 and the second connecting member 60 can be separated by detaching screws; of course, in other alternative embodiments, the cylindrical connecting portion 222 can be detachably connected to the second connecting member 60 by clipping or bonding.
Similarly, the second connector 60 is connected to the printing platform 30 by a screw, a snap or an adhesive, which are not listed herein.
Further, the outer wall of the cylindrical connecting portion 222 may be provided with a positioning hole 2221;
the connecting block 61 is provided with a second threaded hole 611 corresponding to the position of the positioning hole 2221, and the first screw 612 sequentially passes through the second threaded hole 611 and the positioning hole 2221 and is in threaded connection with the second threaded hole 611.
Referring to fig. 5, in fig. 5, the first screw 612 may pass through the corresponding positioning hole 2221 after passing through the second threaded hole 611, so that the first screw 612 may limit the cylindrical connection portion 222 in the receiving groove. It is understood that, for limiting, the inner diameter of the positioning hole 2221 may be equal to or slightly larger than the outer diameter of the thread of the first screw 612.
The number of positioning holes 2221 can be set according to actual needs. With continued reference to fig. 5, the plurality of positioning holes 2221 in fig. 5 may be distributed along the circumference of the cylindrical connecting portion 222 to limit the cylindrical connecting portion 222 from various directions.
Further, the second connecting member 60 may further include a connecting bracket 62, the connecting bracket 62 includes a first connecting arm 621, a second connecting arm 622 and a fixing plate 623, one end of the first connecting arm 621 is connected to the fixing plate 623, the other end is connected to the printing platform 30, one end of the second connecting arm 622 is connected to the fixing plate 623, and the other end is connected to the printing platform 30; the connecting block 61 is clamped between the first connecting arm 621 and the second connecting arm 622, and the connecting block 61 is detachably connected to the fixing plate 623.
In the embodiment of the present invention, referring to fig. 8, the first connecting arm 621 and the second connecting arm 622 of the connecting bracket 62 may clamp the connecting block 61, and the fixing plate 623 is attached to the connecting block 61. Specifically, an opening may be formed in the fixing plate 623, and a third threaded hole may be formed in the connecting block 61 corresponding to the opening, so that the second screw 63 may be disposed, and the second screw 63 penetrates through the opening of the fixing plate 623 and is in threaded connection with the third threaded hole, so that the fixing plate 623 and the connecting block 61 are fixed.
Specifically, the second screw 63 may be fixedly connected with the handle, and the user may remove the second screw 63 by turning the handle, so that the user may easily release the fixing between the connecting bracket 62 and the second connecting block 61.
The connection manner of the first connecting arm 621 and the second connecting arm 622 to the fixing plate 623 can be set according to actual needs, including but not limited to threaded connection, clamping connection or bonding connection. With continued reference to fig. 7, in fig. 7, one end of the first connecting arm 621 and one end of the second connecting arm 622 can be detachably fixed to the printing platform 30 by means of screws matching with the screw holes.
The implementation of the present invention will be illustrated in a specific embodiment, referring to fig. 1 to 7, in which the three-dimensional printing apparatus comprises a support arm 10, a leveling assembly 20 and a printing platform 30, wherein,
the leveling component 20 comprises a first limiting part 23 and a first connecting part 22, the first limiting part 23 is connected with the supporting arm 10 in a sliding manner, one end of the first connecting part 22 is a rotating connecting part 221, the rotating connecting part is connected with the supporting arm, and the other end of the first connecting part is connected with the printing platform;
the first limiting member 23 can move between a first position and a second position, in the first position, the first limiting member 23 is matched with the support arm 10 to fix the rotation connecting portion 221, and in the second position, the rotation connecting portion 221 is rotatably connected with the support arm 10.
The leveling assembly 20 further includes a displacement transmission member 21 and a second limiting member 24, the second limiting member 24 is fixedly connected to the support arm 10, the rotation connection portion 221 is located between the first limiting member 23 and the second limiting member 24, and the displacement transmission member 21 is connected to the first limiting member 23 to drive the first limiting member 23 to move between a first position and a second position;
in the first position, the first limiting member 23 and the second limiting member 24 are both abutted against the rotation connecting portion 221; in the second position, the rotation connecting portion 221 is rotatable between the first limiting member 23 and the second limiting member 24.
The supporting arm 10 has a sliding slot 11, and the first limiting member 23 is located in the sliding slot 11 and can slide in the sliding slot 11.
Wherein, the displacement transmission piece 21 includes jackscrew 211 and kicking block 212, and first screw hole 12 has been seted up to support arm 10, and the opening of first screw hole 12 one end sets up in a side of support arm 10, and the opening of the other end sets up in the inner wall of sliding tray 11 to first screw hole 12 can communicate with sliding tray 11, and kicking block 212 is located sliding tray 11, and with first locating part 23 butt, jackscrew 211 passes first screw hole 12, and with kicking block 212 fixed connection.
Wherein, the displacement transmission piece 21 includes jackscrew 211 and kicking block 212, and first screw hole 12 has been seted up to support arm 10, and the opening of first screw hole 12 one end sets up in a side of support arm 10, and the opening of the other end sets up in the inner wall of sliding tray 11 to first screw hole 12 can communicate with sliding tray 11, and kicking block 212 is located sliding tray 11, and with first locating part 23 butt, jackscrew 211 passes first screw hole 12, and with kicking block 212 fixed connection.
The first limiting member 23 is recessed inwards towards the side of the rotating connection portion 221 to form a first curved surface accommodating cavity, and the second limiting member 24 is recessed inwards towards the side of the first curved surface accommodating cavity to form a second curved surface accommodating cavity; the rotating connecting part 221 is arranged in a spherical shape, and the rotating connecting part 221 is positioned between the first curved surface accommodating cavity and the second curved surface accommodating cavity;
in the first position, two sides of the rotary connecting part 221 are respectively abutted against the inner wall of the first curved surface accommodating cavity and the inner wall of the second curved surface accommodating cavity; in the second position, the rotation connecting portion 221 can rotate in the space enclosed by the first curved receiving cavity and the second curved receiving cavity.
The first connecting member 22 further includes a cylindrical connecting portion 222, the cylindrical connecting portion 222 is fixedly connected to the rotating connecting portion 221, the second limiting member 24 is provided with a first through hole 241, the first through hole 241 is communicated with the second curved surface accommodating cavity, and the cylindrical connecting portion 222 passes through the first through hole 241 and is connected to the printing platform 30;
the first through hole 241 has an inner diameter larger than an outer diameter of the cylindrical connection portion 222.
An annular step 2411 is formed in the first through hole 241, and an elastic member 242 is disposed between the annular step 2411 and the rotary connection portion 221. The elastic element 242 is used for providing an elastic restoring force to restore the first position-limiting element 23 to the second position.
The three-dimensional printing equipment further comprises a second connecting piece 60, wherein the second connecting piece 60 is detachably connected with the leveling component 20 and the printing platform 30 respectively;
the second connecting member 60 includes a connecting block 61, and the connecting block 61 has a receiving groove, the receiving groove is adapted to the cylindrical connecting portion 222, and at least a portion of the cylindrical connecting portion 222 is received in the receiving groove.
Wherein, the outer wall of the cylindrical connecting portion 222 may be provided with a positioning hole 2221;
the connecting block 61 is provided with a second threaded hole 611 corresponding to the position of the positioning hole 2221, and the first screw 612 sequentially passes through the second threaded hole 611 and the positioning hole 2221 and is in threaded connection with the second threaded hole 611.
The second connecting member 60 may further include a connecting bracket 62, the connecting bracket 62 includes a first connecting arm 621, a second connecting arm 622 and a fixing plate 623, one end of the first connecting arm 621 is connected to the fixing plate 623, the other end of the first connecting arm 621 is connected to the printing platform 30, one end of the second connecting arm 622 is connected to the fixing plate 623, and the other end of the second connecting arm 622 is connected to the printing platform 30; the connecting block 61 is clamped between the first connecting arm 621 and the second connecting arm 622, and the connecting block 61 is detachably connected to the fixing plate 623.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. A three-dimensional printing device is characterized by comprising a supporting arm, a leveling component and a printing platform,
the leveling assembly comprises a first limiting part and a first connecting part, the first limiting part is connected with the supporting arm in a sliding mode, one end of the first connecting part is a rotating connecting part, the rotating connecting part is connected with the supporting arm, and the other end of the first connecting part is connected with the printing platform;
the first limiting part can move between a first position and a second position, the first limiting part and the supporting arm are matched and fixed at the first position, and the rotating connecting part is rotatably connected with the supporting arm at the second position.
2. The three-dimensional printing apparatus according to claim 1, wherein the leveling assembly further comprises a displacement transmission member and a second limiting member, the second limiting member is fixedly connected to the supporting arm, the rotation connection portion is located between the first limiting member and the second limiting member, and the displacement transmission member is connected to the first limiting member to drive the first limiting member to move between a first position and a second position;
in the first position, the first limiting piece and the second limiting piece are both abutted to the rotating connecting part; in the second position, the rotation connecting portion may rotate between the first limiting member and the second limiting member.
3. The three-dimensional printing apparatus according to claim 1, wherein the first limiting member is a screw, and in the first position, one end of the first limiting member passes through the first connecting member and is screwed with the supporting arm, and in the second position, the first limiting member is disengaged from the supporting arm.
4. The three-dimensional printing apparatus according to claim 2, wherein the supporting arm defines a sliding slot, and the first retaining member is located in the sliding slot and can slide in the sliding slot.
5. The three-dimensional printing device according to claim 4, wherein the displacement transmission member includes a jack screw and a jack block, the support arm is provided with a first threaded hole, the first threaded hole is communicated with the sliding groove, the jack block is located in the sliding groove and abuts against the first limiting member, and the jack screw passes through the first threaded hole and is fixedly connected with the jack block.
6. The three-dimensional printing apparatus according to claim 5, wherein a side of the top block facing the first limiting member is a first guiding inclined surface, a side of the first limiting member facing the top block is a second guiding inclined surface, the first guiding inclined surface and the second guiding inclined surface at least partially abut, and the first guiding inclined surface and the second guiding inclined surface are in sliding contact.
7. The three-dimensional printing apparatus according to claim 2, wherein the first limiting member is recessed inwardly toward a side of the rotation connecting portion to form a first curved surface accommodating chamber, and the second limiting member is recessed inwardly toward a side of the first curved surface accommodating chamber to form a second curved surface accommodating chamber; the rotary connecting part is arranged in a spherical shape and is positioned between the first curved surface accommodating cavity and the second curved surface accommodating cavity;
in the first position, two sides of the rotary connecting part are respectively abutted against the inner wall of the first curved surface accommodating cavity and the inner wall of the second curved surface accommodating cavity; in the second position, the rotating connecting part can rotate in a space formed by the first curved surface accommodating cavity and the second curved surface accommodating cavity in an enclosing mode.
8. The three-dimensional printing apparatus according to claim 7, wherein the first connecting member further comprises a cylindrical connecting portion, the cylindrical connecting portion is fixedly connected to the rotating connecting portion, the second limiting member is provided with a first through hole, the first through hole is communicated with the second curved surface accommodating cavity, and the cylindrical connecting portion passes through the first through hole and is connected to the printing platform;
the inner diameter of the first through hole is larger than the outer diameter of the cylindrical connecting part.
9. The three-dimensional printing apparatus according to claim 8, wherein an annular step portion is provided in the first through hole, and an elastic member is provided between the annular step portion and the rotation connecting portion.
10. The three-dimensional printing apparatus of claim 8, further comprising a second connector removably connected to the leveling assembly and the printing platform, respectively;
the second connecting piece comprises a connecting block, wherein an accommodating groove is formed in the connecting block, the accommodating groove is matched with the cylindrical connecting part, and at least part of the cylindrical connecting part is accommodated in the accommodating groove.
11. The three-dimensional printing apparatus according to claim 10, wherein the outer wall of the cylindrical connecting portion is provided with a positioning hole;
the connecting block is provided with a second threaded hole corresponding to the position of the positioning hole, and a first screw penetrates through the second threaded hole and the positioning hole in sequence and is in threaded connection with the second threaded hole.
12. The three-dimensional printing apparatus according to claim 10, wherein the second connecting member further comprises a connecting bracket, the connecting bracket comprises a first connecting arm, a second connecting arm and a fixing plate, one end of the first connecting arm is connected with the fixing plate, the other end of the first connecting arm is connected with the printing platform, one end of the second connecting arm is connected with the fixing plate, and the other end of the second connecting arm is connected with the printing platform; the connecting block clamp is located first linking arm with between the second linking arm, just the connecting block with the fixed plate can be dismantled and be connected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121750765.9U CN216300188U (en) | 2021-07-28 | 2021-07-28 | Three-dimensional printing equipment |
| PCT/CN2022/095549 WO2023005397A1 (en) | 2021-07-28 | 2022-05-27 | 3d printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121750765.9U CN216300188U (en) | 2021-07-28 | 2021-07-28 | Three-dimensional printing equipment |
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| Publication Number | Publication Date |
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| CN216300188U true CN216300188U (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121750765.9U Active CN216300188U (en) | 2021-07-28 | 2021-07-28 | Three-dimensional printing equipment |
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| Country | Link |
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| CN (1) | CN216300188U (en) |
| WO (1) | WO2023005397A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005397A1 (en) * | 2021-07-28 | 2023-02-02 | 深圳市纵维立方科技有限公司 | 3d printing device |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205685748U (en) * | 2016-06-08 | 2016-11-16 | 浙江迅实科技有限公司 | A kind of 3D printer |
| CN207432785U (en) * | 2017-11-23 | 2018-06-01 | 深圳市纵维立方科技有限公司 | The bindiny mechanism of photocuring 3D printer |
| CN207579102U (en) * | 2017-12-07 | 2018-07-06 | 上海云匙科技有限公司 | Connection structure, construction platform component and photocuring 3 D-printing device |
| CN207874880U (en) * | 2018-02-05 | 2018-09-18 | 深圳市诺瓦机器人技术有限公司 | A kind of photocuring 3D printer and its levelling device |
| WO2020071933A1 (en) * | 2018-10-02 | 2020-04-09 | 3 Digital Edge Srl | 3d printer and a method of operating the same |
| CN209079225U (en) * | 2018-11-12 | 2019-07-09 | 深圳市富源盛电子科技有限公司 | Photocuring 3D printer |
| KR102200868B1 (en) * | 2018-12-05 | 2021-01-12 | 주식회사 레이젠 | 3d printer for education and method for coding training and 3d printing |
| CN211467503U (en) * | 2019-11-22 | 2020-09-11 | 深圳市诺瓦机器人技术有限公司 | Photocuring 3D printer |
| CN211942125U (en) * | 2019-12-23 | 2020-11-17 | 深圳市智能派科技有限公司 | Platform adjustment mechanism and 3D printer of photocuring 3D printer |
| CN111497232A (en) * | 2020-04-29 | 2020-08-07 | 深圳市纵维立方科技有限公司 | 3D printer jumbo size shaping platform levelling device |
| CN212331851U (en) * | 2020-05-18 | 2021-01-12 | 深圳市诺瓦机器人技术有限公司 | Photocuring 3D printer |
| CN212352922U (en) * | 2020-07-29 | 2021-01-15 | 深圳市纵维立方科技有限公司 | 3D printer forming platform and 3D printer |
| CN216300188U (en) * | 2021-07-28 | 2022-04-15 | 深圳市纵维立方科技有限公司 | Three-dimensional printing equipment |
-
2021
- 2021-07-28 CN CN202121750765.9U patent/CN216300188U/en active Active
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2022
- 2022-05-27 WO PCT/CN2022/095549 patent/WO2023005397A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005397A1 (en) * | 2021-07-28 | 2023-02-02 | 深圳市纵维立方科技有限公司 | 3d printing device |
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| WO2023005397A1 (en) | 2023-02-02 |
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