Tray of 3D printing supplies, wire rod with reel, 3D printer and 3D printing system

Abstract

The utility model discloses a material tray of 3D printing supplies, a wire rod with the tray, a 3D printer and a 3D printing system.Multiple clamping structures are arranged on the inner wall side, facing a winding shaft, of at least one baffle, the multiple clamping structures are arranged in the stacking direction of the 3D printing supplies, and at least one layer of the 3D printing supplies is connected with one clamping structure; and the probability of loosening and collapsing of the 3D printing supplies in the using process is effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of 3D printing, and in particular to a material tray of 3D printing consumables, a reel wire, a 3D printer and a 3D printing system. Background Art

[0002] 3D printer (also known as 3D printer or stereo printer) is a kind of rapid prototyping process equipment. The 3D printing technology that 3D printers can currently use is fused deposition modeling (FDM). FDM is a technology that constructs three-dimensional objects by printing layer by layer using materials such as powdered metal or plastic based on digital models. In the specific implementation, hot-melt filamentary material (also known as consumables) is wound on a material tray to make a consumable roll, and the consumables are transported to the printer. The printer can extrude the molten consumables onto the printing plate while moving along the printing path, and print out three-dimensional objects layer by layer. In the case where the consumables are usually wound on the material tray in the form of a wire roll, the winding management of the consumables is an issue that needs attention. Utility Model Content

[0003] The present application proposes a material tray, a wire reel and related equipment for 3D printing consumables, which can effectively reduce the probability of 3D printing consumables getting tangled in the material tray.

[0004] In the first aspect, the embodiment of the present application provides a material tray for 3D printing consumables, the material tray includes two baffles and at least one winding shaft; the at least one winding shaft is connected between the two baffles; the 3D printing consumables are wound on the at least one winding shaft in a stacked form; at least one of the two baffles is provided with a plurality of clamping structures on the inner wall side facing the winding shaft, and the plurality of clamping structures are arranged along the stacking direction of the 3D printing consumables; wherein at least one layer of the 3D printing consumables is connected to one of the clamping structures. In the present application, the 3D printing consumables may also be referred to as material lines. The implementation of the present application can effectively reduce the probability of loose collapse of 3D printing consumables, prevent the material line from sinking and causing the material line to be wound and knotted, thereby avoiding the material line jamming and causing the material to be unable to be fed to the 3D printer normally. Wherein, the material line sinking refers to the material line wound on the surface sinking into the inner layer, that is, the material lines located in different layers overlap together; or the material line sinking may also refer to the material line sinking between the material tray surface and the consumable roll.

[0005] In combination with the first aspect, in a first possible implementation, the clamping structure includes a wire pressing tooth. When the present application is implemented, the 3D printing consumables are embedded in the gap of the tooth, which can clamp the consumables and maintain the shape of the consumables winding, further reducing the probability of the 3D printing consumables becoming loose.

[0006] In combination with the first aspect or the first possible implementation of the first aspect, in a second possible implementation, the wire pressing tooth is an asymmetric tooth, and the opening direction of the wire pressing tooth is toward the edge of the baffle. In the present application, the consumables are easy to slide out upward, that is, toward the opening direction of the wire pressing tooth, but the asymmetric tooth can prevent the material line from sinking downward, that is, away from the opening direction of the wire pressing tooth, that is, the implementation of the present application can reduce the probability of 3D printing consumables collapsing during use without affecting the feeding of materials into the 3D printer.

[0007] In combination with the first aspect or the first possible implementation of the first aspect, in a third possible implementation, there are multiple wire pressing teeth, and at least one cross-section between the wire pressing teeth includes at least two contour lines. In the direction from the edge of the material tray to the axis of the material tray, the inclination angles of the at least two contour lines change from small to large or the overall inclination changes from slow to fast, so as to prevent the consumables from sliding toward the axis of the material tray. The inclination angle of the contour line refers to the angle between the contour line and the plane of the baffle where the contour line is located, toward the edge of the baffle. A small inclination angle of the contour line makes it easy for the consumables to slide upward, that is, toward the edge of the baffle, and a large inclination angle of the contour line prevents the consumables from sinking downward, that is, away from the edge of the baffle. By implementing the present application, the probability of 3D printing consumables collapsing during use can be reduced without affecting the feeding of materials to the 3D printer.

[0008] In combination with the first aspect or the first possible implementation of the first aspect, in a fourth possible implementation, the projection size of the contour line with a small inclination angle in the direction from the edge of the material tray to the axis of the material tray is greater than 2 times the diameter of the 3D printing consumable, and / or the projection size of the contour line with a small inclination angle in the direction from the edge of the material tray to the axis of the material tray is between 2.6 mm and 7 mm. In the present application, by designing a suitable clamping tooth size, the consumable can be conformed by the clamping teeth, so that the material lines between different layers will not overlap and entangle.

[0009] In combination with the first aspect or any one of the above possible implementations of the first aspect, in a fifth possible implementation, the material tray is provided with an end fixing structure, and the end fixing structure is connected to the end of the 3D printing consumables. The prior art is to stick the thread ends of the 3D printing consumables in the material tray with adhesive tape. When the printing consumables are exhausted, the printing consumables enter the feeding device or the 3D printer with the adhesive tape, causing the feeding device to jam or the 3D printer to clog. The present application sets a fixing structure in the material tray, which can prevent the printing consumables from entering the feeding device or the 3D printer with the adhesive tape. By implementing the present application, the end of the 3D printing consumables can be fixed when winding the 3D printing consumables, thereby improving the stability of the 3D printing consumables.

[0010] In combination with the first aspect or any one of the above possible implementations of the first aspect, in a sixth possible implementation, the feed tray is provided with the end fixing structure on the body of the at least one baffle. By implementing the present application, the structure of the feed tray can be compact, and the end fixing structure can be cleverly arranged on the feed tray.

[0011] In combination with the first aspect or any one of the above possible implementations of the first aspect, in a seventh possible implementation, the end fixing structure includes a fixing groove provided on the body of the at least one baffle, and the opening direction of the fixing groove is provided along the winding direction of the 3D printing consumables. The prior art also adopts the method of bending the end of the printing consumables and inserting them into the hole / groove. When the printing consumables are exhausted, the bent thread ends will also be brought into the feeding device or the 3D printer, causing the feeding device to jam or the 3D printer to be blocked. The implementation of the present application can effectively prevent the 3D printing consumables from bending when being fixed, thereby avoiding the bent 3D printing consumables from jamming the 3D printer.

[0012] In combination with the first aspect or any one of the above possible implementations of the first aspect, in an eighth possible implementation, the groove wall side of the fixing groove is provided with teeth, and the groove wall side fixes the end of the 3D printing consumable. By implementing the present application, after the 3D printing consumable is inserted into the fixing groove, the friction resistance of the inner wall of the fixing groove to the 3D printing consumable can be increased, so that the end of the 3D printing consumable is more stable when inserted into the fixing groove and is not easy to fall off.

[0013] In combination with the first aspect or any one of the above possible implementations of the first aspect, in a ninth possible implementation, the groove wall of the fixing groove is deformable in a direction toward or away from the axis of the material tray. When implementing the present application, the groove wall of the fixing groove can be pressed and then the material line can be inserted, so as to facilitate the fixing of the end of the material line.

[0014] In combination with the first aspect or in combination with any one of the above possible implementations of the first aspect, in a tenth possible implementation, the at least one winding shaft includes a first sub-shaft and a second sub-shaft, the first sub-shaft and the second sub-shaft are connected by a buckle, and the pressing portion of the buckle is integrally connected and linked to the groove wall. In the present application, the first sub-shaft and the second sub-shaft are detachably buckled, and the pressing portion of the buckle is integrally formed with the groove wall, and the two have a linkage relationship, so that the material tray has fewer deformed cantilever parts, which can reduce the complexity of the material tray production process. In addition, the fewer deformed cantilever parts of the material tray can also improve the reliability of the material tray, and two pressing operations such as disassembling the material tray and inserting the wire material only require one operating part such as an integrally formed buckle pressing portion and the groove wall, which is convenient for users to remember and operate.

[0015] In combination with the first aspect or any one of the above possible implementations of the first aspect, in an eleventh possible implementation, the end face of the groove wall of the fixed groove facing the 3D printing consumable is flush with the surface of the baffle where the fixed groove is located facing the 3D printing consumable, or, the end face of the groove wall of the fixed groove facing the 3D printing consumable is lower than the surface of the baffle where the fixed groove is located facing the 3D printing consumable. The end face of the groove wall facing the 3D printing consumable is perpendicular to the side of the groove wall. In the present application, the end face of the groove wall of the fixed groove facing the 3D printing consumable does not protrude from the surface of the baffle facing the 3D printing consumable, which can avoid interference between the fixed groove and the consumables in the material tray, and provide the possibility for the material tray to be compatible with pre-wound consumable rolls and directly wound material lines.

[0016] In combination with the first aspect or any one of the above possible implementations of the first aspect, in a twelfth possible implementation, a notch of the fixing groove is provided with a spring sheet, and the spring sheet is placed in contact with the winding shaft.

[0017] In combination with the first aspect or any one of the above possible implementations of the first aspect, in a thirteenth possible implementation, a protrusion is provided on the surface of the at least one winding shaft, and the protrusion can be deformed toward or away from the axis of the winding shaft. The protrusion can be used to position and fix the consumable roll, and a groove is correspondingly provided in the consumable roll. The consumable roll can be positioned and fixed by aligning the groove in the consumable roll with the protrusion, so that the material tray can be suitable for the pre-wound consumable roll. The pre-winding method of 3D printing consumables can include pre-winding on a paper inner shaft for storage, or bundling the 3D printing consumables into a wire roll for storage without an inner shaft. The present application is implemented to increase the friction between the surface of the winding shaft and the inner side of the paper inner shaft or the 3D printing consumable wire roll when assembling the 3D printing consumables, so that when the material guide unit of the print head pulls the 3D printing consumables, the winding shaft rolls, thereby delivering the 3D printing consumables. Furthermore, the protrusion is deformable, so that the material tray can also be used in the scenario of directly winding the material wire, that is, winding the material wire directly on the material tray.

[0018] Optionally, a second protrusion is provided on the surface of at least one baffle, and the second protrusion is deformable in the thickness direction of the baffle. Different from the twelfth possible implementation, the present application provides the protrusion on the surface of the baffle, which can also make the material tray compatible with pre-wound consumable rolls and directly wound material wires.

[0019] In combination with the first aspect or in combination with any one of the above possible implementations of the first aspect, in a thirteenth possible implementation, the at least one winding shaft includes a first sub-shaft and a second sub-shaft; wherein the first sub-shaft is fixedly connected to a baffle, the second sub-shaft is fixedly connected to another baffle, and the first sub-shaft and the second sub-shaft are detachably connected. The implementation of the present application can realize the disassembly, assembly and reorganization of the material tray, so that the material tray can be adapted to various types of consumables, thereby improving the universal applicability of the material tray. In addition, the present application can be applied to consumable rolls, such as paper inner shaft material rolls. The consumable roll is a material line wound on the side of a cylinder. Disassemble the first sub-shaft and the second sub-shaft of the material tray, place the consumable roll on at least one of the first sub-shaft and the second sub-shaft, and assemble the first sub-shaft and the second sub-shaft, so as to complete the winding of the 3D printing consumables on the winding shaft. At this time, the material tray provided in the present application can be used for direct winding, that is, the 3D printing consumables are directly wound on the winding shaft; it can also be used for consumable rolls, that is, the material wire pre-wound on the side of the cylinder is directly loaded on the two sub-axes, so that the material tray can be reused, and new consumables can be obtained by replacing the consumable roll.

[0020] In combination with the first aspect or any one of the above possible implementations of the first aspect, in a fourteenth possible implementation, the first sub-shaft cooperates with the second sub-shaft corrugated groove. By implementing the present application, the first sub-shaft and the second sub-shaft can be aligned with each other through the corrugated groove during the docking process, further improving the installation efficiency and structural stability of the tray. At this time, to install the locking tray, you only need to close the two sub-shafts, and the two sub-shafts have corrugated grooves in the circumferential direction that automatically slide into alignment with each other, which plays a role in fixing the circumferential direction and is easy to install.

[0021] In combination with the first aspect or any one of the above possible implementations of the first aspect, in a fifteenth possible implementation, the first sub-axis is snap-connected with the second sub-axis. By implementing the present application, the first sub-axis and the second sub-axis can be mutually limited when connected to improve the stability of the tray structure. After the two sub-axis slide in and align, the snap connection snaps the two sub-axis together and fixes them.

[0022] In the second aspect, the embodiment of the present application provides a material tray for 3D printing consumables, the material tray includes two baffles and at least one winding shaft; the at least one winding shaft is connected between the two baffles; the 3D printing consumables are wound on the at least one winding shaft in a stacked form; the material tray is provided with an end fixing structure, the end fixing structure is connected to the end of the 3D printing consumables; the end fixing structure includes a fixing groove arranged on the body of the at least one baffle, and the opening direction of the fixing groove is arranged along the winding direction of the 3D printing consumables. The present application can fix the end of the 3D printing consumables, facilitate the winding of the 3D printing consumables, and avoid the 3D printing consumables from tying. The prior art is to stick the thread ends of the 3D printing consumables in the material tray with adhesive tape. When the printing consumables are exhausted, the printing consumables enter the feeding system or 3D printer with the adhesive tape, causing the feeding device to jam or the 3D printer to clog. The present application sets a fixing structure in the material tray to prevent the printing consumables from entering the feeding device or 3D printer with the adhesive tape. In addition, the prior art also uses the method of bending the end of the printing consumables and inserting them into the hole / slot. When the printing consumables are exhausted, the bent thread ends will be brought into the feeding device or the 3D printer, causing the feeding device to jam or the 3D printer to clog. The implementation of this application can achieve the fixation of the end of the 3D printing consumables and improve the stability of the 3D printing consumables, while effectively preventing the 3D printing consumables from bending when being fixed, thereby avoiding the bent 3D printing consumables from jamming the 3D printer.

[0023] In combination with the second aspect, in a first possible implementation, the groove wall side of the fixing groove is toothed, and the groove wall side fixes the end of the 3D printing consumable. By implementing the embodiment of the present application, after the 3D printing consumable is inserted into the fixing groove, the friction resistance of the inner wall of the fixing groove to the 3D printing consumable is increased, so that the end of the 3D printing consumable is more stable when inserted into the fixing groove and is not easy to fall off.

[0024] In combination with the second aspect or the first possible implementation of the second aspect, in the second possible implementation, the groove wall of the fixing groove is deformable in a direction toward or away from the axis of the material tray. When implementing the present application, the groove wall of the fixing groove can be pressed and then the material line can be inserted, so as to facilitate the fixing of the end of the material line.

[0025] In combination with the second aspect or in combination with the first possible implementation of the second aspect, in a third possible implementation, the first sub-axis and the second sub-axis are connected by a buckle, and the pressing portion of the buckle is integrally connected and linked to the groove wall. In the present application, the first sub-axis and the second sub-axis are connected by a detachable buckle, and the pressing portion of the buckle is integrally formed with the groove wall, and the two have a linkage relationship, so that the material tray has fewer deformed cantilever parts, which can reduce the complexity of the material tray production process. In addition, the fewer deformed cantilever parts of the material tray can also improve the reliability of the material tray. Two pressing operations, such as disassembling the material tray and inserting the wire material, only require one operating part, such as the integrally formed buckle pressing portion and the groove wall, which is convenient for users to remember and operate.

[0026] In combination with the second aspect or the first possible implementation of the second aspect, in a fourth possible implementation, the end face of the groove wall of the fixed groove facing the 3D printing consumable is flush with the surface of the baffle where the fixed groove is located facing the 3D printing consumable, or the end face of the groove wall of the fixed groove facing the 3D printing consumable is lower than the surface of the baffle where the fixed groove is located facing the 3D printing consumable. In the present application, the end face of the groove wall of the fixed groove facing the 3D printing consumable does not protrude from the surface of the baffle facing the 3D printing consumable, which can avoid interference between the fixed groove and the consumable in the material tray, making it possible for the material tray to be compatible with pre-wound consumable rolls and directly wound material lines.

[0027] In combination with the second aspect or the first possible implementation of the second aspect, in a fifth possible implementation, at least one of the two baffles is provided with a plurality of clamping structures on the inner wall side facing the winding shaft, and the plurality of clamping structures are arranged along the stacking direction of the 3D printing consumables; wherein at least one layer of the 3D printing consumables is connected to one of the clamping structures. The implementation of the embodiment of the present application can effectively reduce the probability of the 3D printing consumables becoming loose and collapsing during use, prevent the material line from sinking and causing the material line to be wound and knotted, thereby avoiding the material line being stuck and causing the material to be unable to be fed to the 3D printer normally.

[0028] In combination with the second aspect or any one of the above possible implementations of the second aspect, in a sixth possible implementation, the clamping structure includes a wire pressing tooth. By implementing the embodiment of the present application, the 3D printing consumables can be embedded in the gap of the tooth to clamp the consumables and maintain the shape of the consumables being wound, thereby further reducing the probability of the 3D printing consumables becoming loose.

[0029] In combination with the second aspect or any one of the above possible implementations of the second aspect, in a seventh possible implementation, the wire pressing tooth is an asymmetric tooth, and the opening direction of the wire pressing tooth is toward the edge of the baffle. In the present application, the consumables are easy to slide out upward, that is, toward the opening direction of the wire pressing tooth, but the asymmetric tooth can prevent the material line from sinking downward, that is, away from the opening direction of the wire pressing tooth, that is, the implementation of the present application can reduce the probability of 3D printing consumables collapsing during use without affecting the feeding of materials to the 3D printer.

[0030] In combination with the second aspect or any one of the above-mentioned possible implementations of the second aspect, in an eighth possible implementation, the wire pressing teeth have a plurality of teeth, and at least one cross-section between the wire pressing teeth includes at least two contour lines. In the direction from the edge of the material tray to the axis of the material tray, the inclination angles of the at least two contour lines change from small to large or the overall inclination changes from slow to fast, so as to prevent the consumables from sliding toward the axis. The inclination angle of the contour line refers to the angle between the contour line and the plane of the baffle where the contour line is located, toward the edge of the baffle. A small inclination angle of the contour line makes it easy for the consumables to slide upward, i.e., toward the edge of the baffle, and a large inclination angle of the contour line prevents the consumables from sinking downward, i.e., away from the edge of the baffle. By implementing the present application, the probability of 3D printing consumables collapsing during use can be reduced without affecting the feeding of materials to the 3D printer.

[0031] In combination with the second aspect or any one of the above possible implementations of the second aspect, in a ninth possible implementation, the projection size of the contour line with a small inclination angle along the edge of the material tray to the axis of the material tray is greater than 2 times the diameter of the 3D printing consumable, and / or the projection size of the contour line with a small inclination angle along the edge of the material tray to the axis of the material tray is between 2.6 mm and 7 mm. In the present application, by designing a suitable clamping tooth size, the consumable can be conformed by the clamping teeth, so that the material lines between different layers will not overlap and entangle.

[0032] In combination with the second aspect or any one of the above possible implementations of the second aspect, in a tenth possible implementation, a first protrusion is provided on the surface of the at least one winding shaft, and the first protrusion is deformable toward the axis of the winding shaft. The protrusion can be used to position and fix the consumable roll, and a groove is correspondingly provided in the consumable roll. The consumable roll can be positioned and fixed by aligning the groove in the consumable roll with the protrusion, so that the material tray can be suitable for the pre-wound consumable roll. The pre-winding method of 3D printing consumables can include pre-winding on a paper inner shaft for storage, or bundling the 3D printing consumables into a wire roll for storage without an inner shaft. The present application is implemented to increase the friction between the surface of the winding shaft and the inner side of the paper inner shaft or the 3D printing consumable wire roll when assembling the 3D printing consumables, so that when the material guide unit of the print head pulls the 3D printing consumables, the winding shaft rolls, thereby delivering the 3D printing consumables. Furthermore, the protrusion is deformable, so that the material tray can also be used in the scenario of directly winding the material wire, that is, winding the material wire directly on the material tray.

[0033] In combination with the second aspect or any one of the above possible implementations of the second aspect, in an eleventh possible implementation, a second protrusion is provided on the surface of the at least one baffle, and the second protrusion is deformable in a thickness direction of the baffle. Different from the tenth possible implementation, the present application provides the protrusion on the surface of the baffle, which can also make the material tray compatible with pre-wound consumable rolls and directly wound material wires.

[0034] In combination with the second aspect or in combination with any one of the above possible implementations of the second aspect, in a twelfth possible implementation, the at least one winding shaft includes a first sub-shaft and a second sub-shaft; wherein the first sub-shaft is fixedly connected to a baffle, the second sub-shaft is fixedly connected to another baffle, and the first sub-shaft and the second sub-shaft are detachably connected. The implementation of the present application can realize the disassembly, assembly and reorganization of the material tray, so that the material tray can be adapted to various types of consumables, thereby improving the universal applicability of the material tray. In addition, the present application can be applied to consumable rolls, such as paper inner shaft material rolls. The consumable roll is a material line wound on the side of a cylinder. Disassemble the first sub-shaft and the second sub-shaft of the material tray, place the consumable roll on at least one of the first sub-shaft and the second sub-shaft, and assemble the first sub-shaft and the second sub-shaft, so as to complete the winding of the 3D printing consumables on the winding shaft. At this time, the material tray provided in the present application can be used for direct winding, that is, the 3D printing consumables are directly wound on the winding shaft; it can also be used for consumable rolls, that is, the material wire pre-wound on the side of the cylinder is directly loaded on the two sub-axes, so that the material tray can be reused, and new consumables can be obtained by replacing the consumable roll.

[0035] In combination with the second aspect or any one of the above possible implementations of the second aspect, in a thirteenth possible implementation, the first sub-shaft cooperates with the second sub-shaft corrugated groove. By implementing the present application, the first sub-shaft and the second sub-shaft can be aligned with each other through the corrugated groove during the docking process, further improving the installation efficiency and structural stability of the tray. At this time, to install the locking tray, you only need to close the two sub-shafts, and the two sub-shafts have corrugated grooves in the circumferential direction that automatically slide into alignment with each other, which plays a role in fixing the circumferential direction and is easy to install.

[0036] In combination with the second aspect or any one of the above possible implementations of the second aspect, in a fourteenth possible implementation, the first sub-axis is snap-connected with the second sub-axis. By implementing the present application, the first sub-axis and the second sub-axis can be mutually limited when connected to improve the stability of the tray structure. After the two sub-axis slide in and align, the snap connection snaps the two sub-axis together and fixes them.

[0037] In a third aspect, an embodiment of the present application provides a reel of wire, wherein the reel of wire includes 3D printing consumables, a material reel described in combination with the first aspect or in combination with any one of the above possible implementations of the first aspect, and a material reel described in combination with the second aspect or in combination with any one of the above possible implementations of the second aspect, wherein the 3D printing consumables are wound on at least one winding shaft of the material reel in a stacked form.

[0038] In a fourth aspect, an embodiment of the present application provides a 3D printer, comprising: a support frame connected to the 3D printer, a material tray described in combination with the first aspect or in combination with any one of the above possible implementations of the first aspect, and a material tray described in combination with the second aspect or in combination with any one of the above possible implementations of the second aspect, wherein the support frame is used to place the material tray.

[0039] In a fifth aspect, an embodiment of the present application provides a 3D printing system, comprising a 3D printer and a feeding device, the feeding device being provided with a material tray as described in combination with the first aspect or any one of the above possible implementations of the first aspect, and a material tray as described in combination with the second aspect or any one of the above possible implementations of the second aspect, the 3D printing consumables used by the 3D printer being wound in a stacked form on at least one winding shaft of the material tray, and the feeding device being used to transport the 3D printing consumables to the 3D printer.

[0040] This application includes the following advantages:

[0041] The embodiments of the present application disclose a material tray for 3D printing consumables and a 3D printer. By providing a plurality of clamping structures on the inner wall side of at least one baffle facing the winding shaft, and arranging the plurality of clamping structures along the stacking direction of the 3D printing consumables, and at least one layer of the 3D printing consumables is connected to one of the clamping structures, the probability of the 3D printing consumables becoming loose and collapsed during use is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of an application scenario of a 3D printer provided in an embodiment of the present application;

[0043] Figure 2 It is a schematic diagram of the structure of the feeding device provided in the embodiment of the present application;

[0044] Figure 3A It is a schematic diagram of the structure of the material tray provided in the embodiment of the present application;

[0045] Figure 3B is a cross-sectional view of a material tray baffle provided in an embodiment of the present application;

[0046] Figure 4 It is a schematic diagram of the structure of another material tray provided in an embodiment of the present application;

[0047] Figure 5 is a structural schematic diagram A of a winding shaft provided in an embodiment of the present application;

[0048] Figure 6 is a structural schematic diagram B of a winding shaft provided in an embodiment of the present application;

[0049] Figure 7 It is a schematic diagram of the structure of the buckle and slot provided in the embodiment of the present application;

[0050] Figure 8 It is a schematic diagram of the structure of the button release port provided in an embodiment of the present application;

[0051] Fig. 9 It is a structural schematic diagram of the inspection hole provided in an embodiment of the present application;

[0052] Fig.10 is a schematic structural diagram of a material tray provided in another embodiment of the present application;

[0053] Fig.11 It is a schematic diagram of the structure of the fixing groove provided in the embodiment of the present application.

[0054] Figure numerals: feeding device 101, 3D printer 102, print head 1021, nozzle 10212, material tray 300, baffle 301, winding shaft 302, clamping structure 303, fixing groove 304, spring piece 305, first sub-axis 3021, second sub-axis 3022, first baffle 3021c, second baffle 3022c, first axis opening 3021a, second axis opening 3022a, slot 3021b, buckle 3022b, unfastening structure 3021d, first inspection hole 3021e, second inspection hole 3022e, unfastening mouth 3021f, material tray 400, baffle 401, winding shaft 402, end fixing structure 403, fixing groove 404. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0056] In some possible implementations, see Figure 1 , Figure 1 A schematic diagram of an application scenario of a 3D printer provided in an embodiment of the present application. Figure 1 As shown, the feeding device 101 provides 3D printing consumables to the 3D printer 102 .

[0057] Exemplary, reference Figure 2 , Figure 2 A schematic diagram of the structure of a feeding device provided in an embodiment of the present application;

[0058] The feeding device 101 can suspend a material tray, for example, a claw in the feeding device 101 can suspend a material tray. The material tray is wound with consumables. The feeding device 101 can provide the consumables to the 3D printer 102, or the consumables can be rewound to the material tray through the feeding device. That is, the feeding device can feed or return materials. Exemplarily, the feeding device 101 can also identify material information of the consumables and send the material information of the consumables to the 3D printer 102.

[0059] The 3D printer 102 includes a print head 1021, wherein the print head 1021 includes a nozzle 10212 and an extrusion assembly. When the feeding device 101 is feeding, the consumable material enters the extrusion assembly, and the extrusion assembly provides the consumable material to the nozzle 10212; when the feeding device 101 is withdrawing the material, the extrusion assembly conveys the consumable material to the feeding device 101.

[0060] Optionally, the feeding device may also have other product forms, such as a consumable box, the consumables may be sealed to prevent the consumables from getting wet. A plurality of material troughs may be provided in the consumable box, and the material trays provided in the present application may be placed in the material troughs.

[0061] Optionally, in some feasible implementations, the 3D printer may be connected to a support frame, which is fixed to the housing of the 3D printer. The support frame may be used to place the material tray provided in the present application.

[0062] refer to Figure 3A , Figure 3A It is a schematic diagram of the structure of the material tray provided in the embodiment of the present application;

[0063] The material tray 300 may include two baffles 301 and at least one winding shaft 302 ; the at least one winding shaft 302 is connected between the two baffles 301 .

[0064] In a specific implementation, the winding shaft 302 may be a cylinder, and the 3D printing consumables may be wound on at least one winding shaft 302 in a stacked form. It should be noted that winding includes direct winding or indirect winding. For example, the 3D printing consumables are directly wound on the surface of the winding shaft, which can be referred to as the 3D printing consumables being wound on the winding shaft in a stacked form. Alternatively, the 3D printing consumables may be pre-wound on the side of a cylinder, and then the cylinder wound with the consumables is placed on the winding shaft, which can also be referred to as the 3D printing consumables being wound on the winding shaft in a stacked form. Thus, the storage of 3D printing consumables is achieved. During operation, the 3D printer can pull the 3D printing consumables through the print head, so that the edges of the winding shaft 302 or the two baffles 301 roll, thereby delivering the 3D printing consumables.

[0065] At least one of the two baffles 301 is provided with a plurality of clamping structures 303 on the inner wall side facing the winding shaft 302 , and the plurality of clamping structures 303 can be arranged along the stacking direction of the 3D printing consumables; wherein at least one layer of 3D printing consumables is connected to one clamping structure 303 .

[0066] Exemplarily, the 3D printing consumables are wound onto the winding shaft layer by layer, and a multi-layer wire pressing tooth can be set on the inner wall side of the baffle on either side, or a multi-layer threaded guide groove can be used as a clamping structure, and at least one layer of 3D printing consumables is fitted with the clamping structure.

[0067] Those skilled in the art may set a clamping structure on the inner wall of any side baffle or both side baffles, and the embodiments of the present application are not limited to this.

[0068] The present application provides a plurality of clamping structures on the inner wall side of at least one baffle facing the winding shaft, and arranges the plurality of clamping structures along the stacking direction of the 3D printing consumables, and at least one layer of the 3D printing consumables is connected to one of the clamping structures, thereby effectively reducing the probability of the 3D printing consumables becoming loose and collapsed during use.

[0069] In an optional embodiment of the present application, the clamping structure may include a plurality of layers of crimping teeth arranged on the inner wall side, and the distance between the two layers of crimping teeth may be equal to the cross-sectional diameter of the 3D printing consumables, thereby better clamping the 3D printing consumables and further reducing the probability of the 3D printing consumables becoming loose and collapsed during use.

[0070] Optional, see Figure 3B , Figure 3B is a cross-sectional view of a material tray baffle provided in an embodiment of the present application;

[0071] There may be multiple wire pressing teeth, and at least one cross-section between the wire pressing teeth includes at least two contour lines, such as contour line A and contour line B. In the direction from the edge of the material tray to the axis of the material tray, the inclination of contour line A is gentler than that of contour line B, which can prevent the consumables from sliding toward the axis of the material tray. In some feasible embodiments, in the direction from the edge of the material tray to the axis of the material tray, the inclination angle of the contour line changes from small to large (not shown in the figure), and the small inclination angle of the contour line makes it easy for the consumables to slide upward, that is, toward the edge of the baffle, and the large inclination angle of the contour line makes it possible to prevent the consumables from sinking downward, that is, away from the edge of the baffle. The implementation of the present application can reduce the probability of 3D printing consumables collapsing during use without affecting the feeding of materials to the 3D printer.

[0072] In some feasible implementations, the projection size of the contour line with a small inclination angle or a relatively gentle inclination along the edge of the material tray to the axis of the material tray is greater than 2 times the diameter of the 3D printing consumable, and / or the projection size of the contour line with a small inclination angle or a relatively gentle inclination along the edge of the material tray to the axis of the material tray is between 2.6mm and 7mm. In the present application, by designing a suitable clamping tooth size, the consumable can be kept in shape by the clamping teeth, so that the material lines between different layers will not overlap and entangle.

[0073] If the 3D printing consumables are unevenly arranged when they are wound around the winding spool, the 3D printing consumables may become loose and sink during use. Therefore, in an optional embodiment of the present application, the wire pressing teeth may be asymmetric teeth to better clamp the 3D printing consumables and prevent the 3D printing consumables from becoming loosely wound during use. At the same time, the opening direction of the wire pressing teeth may be configured to face the edge of the baffle to prevent the 3D printing consumables from sliding downward.

[0074] When winding 3D printing consumables, one end of the 3D printing consumables must be fixed on the material tray first. Therefore, in an optional embodiment of the present application, the material tray is provided with an end fixing structure, and the end fixing structure 304 can be connected to the end of the 3D printing consumables to fix the end of the 3D printing consumables when winding the 3D printing consumables.

[0075] In some possible implementations, reference Figure 4 , Figure 4 Schematic diagram of another material tray provided in the embodiment of the present application. Figure 4 As shown, the material tray is provided with an end fixing structure on the body of at least one baffle. At this time, the end fixing structure includes a fixing groove 304, and the opening direction of the fixing groove 304 is set along the winding direction of the 3D printing consumables. For example, the fixing groove 304 can be parallel to the baffle 301 and is arranged in contact with the surface of the winding shaft. At this time, it can be ensured that when the 3D printing consumables are inserted into the fixing groove 304, the opening direction of the fixing groove 305 is set along the winding direction of the 3D printing consumables, effectively preventing the 3D printing consumables from bending when being fixed, thereby avoiding the 3D printing consumables from bending and causing the 3D printer to jam.

[0076] In an optional embodiment of the present application, the inner wall of the fixing groove 304 may be provided with teeth for preventing the 3D printing consumables from falling off, that is, the groove wall side D of the fixing groove is provided with teeth, and the groove wall side D fixes the end of the 3D printing consumables. The tooth tip of the tooth may be arranged toward the bottom direction of the fixing groove 304, so that the 3D printing consumables can be smoothly inserted into the fixing groove 304, and when the 3D printing consumables are subjected to a force opposite to the insertion direction, the friction resistance of the inner wall of the fixing groove 304 to the 3D printing consumables is increased, so that the end of the 3D printing consumables is more stable when inserted into the fixing groove 304 and is not easy to fall off.

[0077] Exemplarily, the end fixing structure may further include a fixing protrusion disposed on the body of at least one baffle, and in this case, the end of the 3D printing consumable may be connected to the fixing protrusion.

[0078] Optionally, the end fixing structure may include other fixing structures in addition to the fixing groove 304, for example, it may include, but is not limited to, a notch provided in the fixing groove 304 and a spring sheet 305 attached to the surface of the winding shaft, the spring sheet 305 may be an elastic metal sheet or plastic sheet fixedly connected to the surface of the winding shaft, and the spring sheet may press the 3D printing consumable exposed outside the fixing groove 304 when the 3D printing consumable is inserted into the fixing groove 304, so as to further prevent the 3D printing consumable from falling off the fixing groove 304. In addition, when winding the consumable, the spring sheet may be pressed to clamp the material line into the fixing groove, so as to facilitate the fixing of the end of the material line.

[0079] Optionally, in some feasible implementations, the groove wall of the fixing groove 304 can be deformed in a direction toward or away from the axis of the material tray. In the implementation of the present application, the groove wall of the fixing groove can be pressed and then the material line can be inserted to facilitate the fixing of the end of the material line.

[0080] Furthermore, at least one winding shaft includes a first sub-shaft and a second sub-shaft, and the first sub-shaft and the second sub-shaft are connected by a buckle, and the pressing portion of the buckle is integrally connected and linked to the groove wall. In the present application, the first sub-shaft and the second sub-shaft are connected by a detachable buckle, and the pressing portion of the buckle is integrally formed with the groove wall, and the two have a linkage relationship, so that the material tray has fewer deformed cantilever parts, which can reduce the complexity of the material tray production process. In addition, the fewer deformed cantilever parts of the material tray can also improve the reliability of the material tray. Two pressing operations, such as disassembling the material tray and inserting the wire, only require one operating part, such as the integrally formed buckle pressing portion and the groove wall, which is convenient for users to remember and operate.

[0081] Optionally, in some feasible implementations, the end face of the groove wall of the fixed groove facing the 3D printing consumable is flush with the surface of the baffle where the fixed groove is located facing the 3D printing consumable, or, the end face of the groove wall of the fixed groove facing the 3D printing consumable is lower than the surface of the baffle where the fixed groove is located facing the 3D printing consumable. The end face of the groove wall facing the 3D printing consumable is perpendicular to the side of the groove wall. In the present application, the end face of the groove wall of the fixed groove facing the 3D printing consumable does not protrude from the surface of the baffle facing the 3D printing consumable, which can avoid interference between the fixed groove and the consumables in the material tray, and provide the possibility for the material tray to be compatible with pre-wound consumable rolls and directly wound material lines.

[0082] 3D printing consumables can also be pre-wound on the paper inner shaft for storage. Therefore, in an optional embodiment of the present application, a deformable protrusion structure can be provided on the surface of at least one winding shaft, and the protrusion can be deformed toward the axis of the winding shaft to increase the friction between the surface of the winding shaft and the inner side of the paper inner shaft when the 3D printing consumables stored on the paper inner shaft are placed on the winding shaft, so that when the material guide unit of the print head pulls the 3D printing consumables, the winding shaft rolls, thereby delivering the 3D printing consumables.

[0083] In an optional embodiment of the present application, the winding shaft may be composed of a first sub-shaft and a second sub-shaft. The first sub-shaft may be fixedly connected to one baffle, and the second sub-shaft may be fixedly connected to another baffle. Figure 5 , Figure 5 It is a structural schematic diagram A of the winding shaft provided in an embodiment of the present application. By way of example, the winding shaft 302 includes a first sub-shaft 3021 and a second sub-shaft 3022. The first sub-shaft 3021 is fixedly connected to the first baffle 3021c, and the second sub-shaft 3021 is fixedly connected to the second baffle 3022c. The first sub-shaft 3021 and the second sub-shaft 3022 are detachably connected so that the winding shaft 302 can be disassembled and reassembled, thereby allowing the material tray to adapt to a variety of consumables, thereby improving the universal applicability of the material tray.

[0084] Optionally, the first sub-shaft is connected to the second sub-shaft slot, exemplarily, referring to Figure 6 , Figure 6 Schematic diagram B of the structure of the winding shaft provided in the embodiment of the present application, the first shaft opening 3021a of the first sub-shaft 3021 can be provided with a first wave-shaped structure of the sliding groove, and the second shaft opening 3022a of the second sub-shaft 3022 can be provided with a second wave-shaped structure of the sliding groove, the first wave structure corresponds to the second wave structure. By providing sliding grooves at the two shaft openings, the first shaft opening 3021a of the first sub-shaft 3021 and the second shaft opening 3022a of the second sub-shaft 3022 can be quickly and accurately docked in place under the guidance of the first wave-shaped structure and the second wave-shaped structure, thereby improving the installation efficiency of the first sub-shaft 3021 and the second sub-shaft 3022 for the material tray.

[0085] Optionally, the first sub-axis and the second sub-axis can be connected by snap-fit ​​connection. For example, refer to Figure 7 It is a structural schematic diagram of the buckle slot provided in an embodiment of the present application; in an optional embodiment of the present application, the first sub-axis 3021 can be provided with a plurality of slots 3021b, and the second sub-axis 3022 can be provided with a plurality of buckles 3022b for the slots 3021b. The plurality of slots 3021b and the plurality of buckles 3022b can correspond one to one. By setting the slots 3021b and the buckles 3022b, the first sub-axis 3021 and the second sub-axis 3022 can be quickly buckled and connected through the slots 3021b and the buckles 3022b, thereby further improving the installation efficiency and structural stability of the material tray.

[0086] refer to Figure 8 , Figure 8 3021d, and the first baffle plate may be provided with a release opening 3021f for the release structure 3021d, and the release structure 3021d extends along the release opening 3021f to the outside of the first baffle plate. By way of example, when the first sub-shaft and the second sub-shaft are fastened and the material tray is provided with a consumable roll, and it is inconvenient to perform disassembly operation from the space between the first sub-shaft and the second sub-shaft, the user can press the release opening 3021f to expose the release structure 3021d, so that the release structure 3021d drives the buckle 3022b to be displaced, so that the buckle 3022b is disengaged from the slot 3021b, and the disassembly of the first sub-shaft and the second sub-shaft is completed, thereby realizing the rapid disassembly of the first sub-shaft and the second sub-shaft and improving the disassembly and assembly efficiency.

[0087] refer to Fig. 9 , Fig. 9 It is a structural schematic diagram of the inspection hole provided in an embodiment of the present application;

[0088] Optionally, the first baffle plate may be provided with a plurality of first inspection holes 3021e, and the clamping structure may be provided between the first inspection holes 3021e; the second baffle plate may be provided with a plurality of second inspection holes 3022e, and the clamping structure may be provided between the second inspection holes 3022e. Exemplarily, the user may inspect the remaining 3D printing consumables arranged between the first baffle plate and the second baffle plate through the first inspection hole 3021e and / or the second inspection hole 3022e, thereby knowing the remaining consumables in the material tray and managing the material tray according to the remaining consumables. At the same time, configuring the clamping structure between the first inspection hole 3021e and / or the second inspection hole 3022e can make the material tray lighter and reduce the amount of material required to make the first baffle plate 3021c and the second baffle plate 3022c, thereby saving production costs.

[0089] refer to Fig.10 , Fig.10 It is a schematic diagram of the structure of a material tray provided in another embodiment of the present application.

[0090] The material tray 400 may include two baffles 401 and at least one winding shaft 402; the at least one winding shaft 402 is connected between the two baffles 401;

[0091] In a specific implementation, the winding shaft 402 may be a cylinder, and the 3D printing consumables may be wound on at least one winding shaft 402 in a stacked form to store the 3D printing consumables. During operation, the 3D printer may draw the 3D printing consumables through the material guide unit of the print head, so that the winding shaft 402 rolls, thereby delivering the 3D printing consumables.

[0092] The material tray 400 may be provided with an end fixing structure 403, and the end fixing structure 403 is connected to the end of the 3D printing consumables;

[0093] The end fixing structure 403 may include a fixing groove 404 disposed on the body of at least one baffle, and the opening direction of the fixing groove is arranged along the winding direction of the 3D printing consumables. Fig.11 , Fig.11 4 is a schematic diagram of the structure of the fixing groove provided in an embodiment of the present application. By way of example, the fixing groove 404 can be parallel to the baffle 401 and arranged in contact with the surface of the winding shaft 402. At this time, it can be ensured that when the 3D printing consumables are inserted into the fixing groove 404, the opening direction of the fixing groove 404 is arranged along the winding direction of the 3D printing consumables, thereby effectively preventing the 3D printing consumables from bending when being fixed, thereby avoiding the bent 3D printing consumables from causing material jams in the 3D printer.

[0094] By implementing the embodiments of the present application, the ends of the 3D printing consumables can be fixed and the stability of the 3D printing consumables can be improved. At the same time, the 3D printing consumables can be effectively prevented from bending when being fixed, thereby avoiding the bent 3D printing consumables from causing material jams in the 3D printer.

[0095] Those skilled in the art may set a clamping structure on the inner wall of any side baffle or both side baffles, and the embodiments of the present application are not limited to this.

[0096] Optionally, in addition to the fixing groove 404, the end fixing structure 403 may also include other fixing structures, for example, it may include but is not limited to a notch set in the fixing groove 404 and a fixing spring sheet attached to the surface of the winding shaft 402. The fixing spring sheet may be an elastic metal sheet or plastic sheet with one end fixedly connected to the surface of the winding shaft 402. When the 3D printing consumable is inserted into the fixing groove 404, the fixing spring sheet can press the 3D printing consumable exposed outside the fixing groove 404 to further prevent the 3D printing consumable from falling off the fixing groove 404.

[0097] Optionally, the fixing groove has teeth, and the teeth of the fixing groove fix the end of the 3D printing consumable.

[0098] Optionally, at least one of the two baffles is provided with a plurality of clamping structures on the inner wall side facing the winding shaft, and the plurality of clamping structures are arranged along the stacking direction of the 3D printing consumables;

[0099] Wherein, at least one layer of the 3D printing consumables is connected to one of the clamping structures.

[0100] Optionally, the clamping structure includes wire pressing teeth.

[0101] Optionally, the wire pressing tooth is an asymmetric tooth, and the opening direction of the wire pressing tooth is toward the edge of the baffle.

[0102] Optionally, a deformable protrusion is provided on the surface of the at least one winding shaft.

[0103] Optionally, the at least one winding shaft includes a first sub-shaft and a second sub-shaft; wherein the first sub-shaft is fixedly connected to a baffle, the second sub-shaft is fixedly connected to another baffle, and the first sub-shaft and the second sub-shaft are detachably connected.

[0104] Optionally, the first sub-shaft cooperates with the corrugated groove of the second sub-shaft.

[0105] Optionally, the first sub-shaft is snap-connected to the second sub-shaft.

[0106] The embodiment of the present application provides a reel wire, the reel wire comprises 3D printing consumables and the material reel as described above, the 3D printing consumables are wound on at least one winding shaft of the material reel in a stacked form. That is, the reel wire is a material reel wound with a material wire.

[0107] An embodiment of the present application provides a 3D printer, comprising: a support frame connected to the 3D printer, and a material tray as described above, wherein the support frame is used to place the material tray.

[0108] An embodiment of the present application provides a 3D printing system, which includes a 3D printer and a feeding device, wherein the feeding device is provided with a material tray as described above, and the 3D printing consumables used by the 3D printer are wound in a stacked form on at least one winding shaft of the material tray, and the feeding device is used to transport the 3D printing consumables to the 3D printer.

[0109] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0110] The above is a detailed introduction to a material tray, a reel wire and related equipment for 3D printing consumables provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technicians in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A tray of 3D printing consumables, characterized in that: The material tray includes two baffles and at least one winding shaft; the at least one winding shaft is connected between the two baffles; The 3D printing consumables are wound around the at least one winding shaft in a stacked form; At least one of the two baffles is provided with a plurality of clamping structures on the inner wall side facing the winding shaft, and the plurality of clamping structures are arranged along the stacking direction of the 3D printing consumables; Wherein, at least one layer of the 3D printing consumables is connected to one of the clamping structures.

2. The tray according to claim 1, characterized in that: The clamping structure comprises wire pressing teeth.

3. The tray according to claim 2, characterized in that: The wire pressing teeth are asymmetric teeth, and the opening direction of the wire pressing teeth faces the edge of the baffle.

4. The tray according to claim 2, characterized in that: There are multiple wire pressing teeth, and a cross-section between at least one of the wire pressing teeth includes at least two contour lines. In the direction from the edge of the material tray to the axis of the material tray, the inclination angle of the at least two contour lines changes from small to large or the overall inclination degree changes from slow to fast.

5. The tray according to claim 4, characterized in that: The projection size of the contour line with a small inclination angle or a relatively gentle inclination along the edge of the material tray toward the axis of the material tray is greater than twice the diameter of the 3D printing consumable, and / or, The projection size of the contour line with a small inclination angle or a gentle inclination degree in the direction from the edge of the material tray to the axis of the material tray is between 2.6 mm and 7 mm.

6. The material tray according to any one of claims 1 to 5, characterized in that: The material tray is provided with an end fixing structure, and the end fixing structure is connected to the end of the 3D printing consumables.

7. The material tray according to claim 6, characterized in that: The material tray is provided with the end fixing structure on the body of the at least one baffle.

8. The material tray according to claim 7, characterized in that: The end fixing structure comprises a fixing groove, and the opening direction of the fixing groove is arranged along the winding direction of the 3D printing consumables.

9. The material tray according to claim 8, characterized in that: The side surface of the groove wall of the fixing groove is provided with teeth, and the side surface of the groove wall fixes the end of the 3D printing consumable material.

10. The material tray according to claim 8 or 9, characterized in that: The groove wall of the fixing groove can be deformed in a direction toward or away from the axis of the material tray.

11. The material tray according to claim 10, characterized in that: The at least one winding shaft comprises a first sub-shaft and a second sub-shaft, wherein the first sub-shaft is connected to the second sub-shaft by a snap-fit ​​connection; The pressing portion of the buckle is integrally connected with the groove wall and linked with each other.

12. The material tray according to any one of claims 9 to 11, characterized in that: The end surface of the groove wall of the fixing groove facing the 3D printing consumable is flush with the surface of the baffle where the fixing groove is located facing the 3D printing consumable, or, The end surface of the groove wall of the fixing groove facing the 3D printing consumable is lower than the surface of the baffle where the fixing groove is located facing the 3D printing consumable.

13. The material tray according to claim 8 or 9, characterized in that: The notch of the fixing slot is provided with an elastic sheet, and the elastic sheet is placed in close contact with the winding shaft.

14. The material tray according to any one of claims 1 to 13, characterized in that: A protrusion is provided on the surface of the at least one winding shaft, and the protrusion can be deformed toward or away from the axis of the winding shaft.

15. The material tray according to any one of claims 1 to 14, characterized in that: The at least one winding shaft includes a first sub-shaft and a second sub-shaft; wherein the first sub-shaft is fixedly connected to a baffle, the second sub-shaft is fixedly connected to another baffle, and the first sub-shaft and the second sub-shaft are detachably connected.

16. The tray according to claim 15, characterized in that: The first sub-shaft is matched with the corrugated groove of the second sub-shaft.

17. The material tray according to claim 16, characterized in that The first sub-shaft is snap-connected with the second sub-shaft.

18. A tray of 3D printing consumables, characterized in that: The material tray includes two baffles and at least one winding shaft; the at least one winding shaft is connected between the two baffles; The 3D printing consumables are wound around the at least one winding shaft in a stacked form; The material tray is provided with an end fixing structure, and the end fixing structure is connected to the end of the 3D printing consumables; The end fixing structure comprises a fixing groove arranged on the body of the at least one baffle, and the opening direction of the fixing groove is arranged along the winding direction of the 3D printing consumables.

19. The tray according to claim 18, characterized in that The side surface of the groove wall of the fixing groove is provided with teeth, and the side surface of the groove wall fixes the end of the 3D printing consumable material.

20. The tray according to claim 18 or 19, characterized in that: The groove wall of the fixing groove can be deformed in a direction toward or away from the axis of the material tray.

21. The tray according to claim 20, characterized in that The at least one winding shaft comprises a first sub-shaft and a second sub-shaft, the first sub-shaft and the second sub-shaft are connected via a buckle, and a pressing portion of the buckle is integrally connected and linked to the groove wall.

22. The material tray according to any one of claims 18 to 21, characterized in that: The end surface of the groove wall of the fixing groove facing the 3D printing consumable is flush with the surface of the baffle where the fixing groove is located facing the 3D printing consumable, or, The end surface of the groove wall of the fixing groove facing the 3D printing consumable is lower than the surface of the baffle where the fixing groove is located facing the 3D printing consumable.

23. The tray according to claim 18 or 19, characterized in that: The notch of the fixing slot is provided with an elastic sheet, and the elastic sheet is placed in close contact with the winding shaft.

24. A material tray according to any one of claims 18 to 23, characterized in that: At least one of the two baffles is provided with a plurality of clamping structures on the inner wall side facing the winding shaft, and the plurality of clamping structures are arranged along the stacking direction of the 3D printing consumables; Wherein, at least one layer of the 3D printing consumables is connected to one of the clamping structures.

25. The tray according to claim 24, characterized in that The clamping structure comprises wire pressing teeth.

26. The tray according to claim 25, characterized in that The wire pressing teeth are asymmetric teeth, and the opening direction of the wire pressing teeth faces the edge of the baffle.

27. The tray according to claim 25, characterized in that There are multiple wire pressing teeth, and a cross-section between at least one of the wire pressing teeth includes at least two contour lines. In the direction from the edge of the material tray to the axis of the material tray, the inclination angle of the at least two contour lines changes from small to large or the overall inclination degree changes from slow to fast.

28. The tray according to claim 27, characterized in that The projection size of the contour line with a small inclination angle in the direction from the edge of the material tray to the axis of the material tray is greater than twice the diameter of the 3D printing consumable, and / or, The projection size of the contour line with a small inclination angle in the direction from the edge of the material tray to the axis of the material tray is between 2.6 mm and 7 mm.

29. A tray according to any one of claims 18 to 28, characterized in that: A protrusion is provided on the surface of the at least one winding shaft, and the protrusion can be deformed toward the axis of the winding shaft.

30. A material tray according to any one of claims 18 to 29, characterized in that: The at least one winding shaft includes a first sub-shaft and a second sub-shaft; wherein the first sub-shaft is fixedly connected to a baffle, the second sub-shaft is fixedly connected to another baffle, and the first sub-shaft and the second sub-shaft are detachably connected.

31. The tray according to claim 30, characterized in that The first sub-shaft is matched with the corrugated groove of the second sub-shaft.

32. The tray according to claim 31, characterized in that The first sub-shaft is snap-connected with the second sub-shaft.

33. A reel wire, characterized in that: The reel wire comprises 3D printing consumables and a material tray as described in any one of claims 1-17 or any one of claims 18-32, wherein the 3D printing consumables are wound on at least one winding shaft of the material tray in a stacked form.

34. A 3D printer, characterized in that: include: A support frame connected to the 3D printer and a material tray as described in any one of claims 1-17 or any one of claims 18-32, wherein the support frame is used to place the material tray.

35. A 3D printing system, characterized in that: The 3D printing system includes a 3D printer and a feeding device, wherein the feeding device is provided with a material tray as described in any one of claims 1-17 or any one of claims 18-32, and the 3D printing consumables used by the 3D printer are wound in a stacked form on at least one winding shaft of the material tray, and the feeding device is used to transport the 3D printing consumables to the 3D printer.

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