A spool for a 3D printer and a 3D printing system

Abstract

The application discloses a wire material disc for a 3D printer and a 3D printing system. The wire material disc for the 3D printer comprises a material disc main body and a wireless electronic tag. The material disc main body comprises a wire winding drum, a first limiting plate and a second limiting plate. The first limiting plate is connected to a first end of the wire winding drum, and the second limiting plate is connected to a second end of the wire winding drum. The material disc main body is provided with a mounting groove. The mounting groove is arranged in at least one of the wire winding drum, the first limiting plate and the second limiting plate. The wireless electronic tag is mounted in the mounting groove. Thus, the wireless electronic tag has higher installation convenience.

Description

Technical Field

[0001] This application relates to the field of 3D printing technology, and in particular to a filament spool for a 3D printer and a 3D printing system. Background Technology

[0002] 3D printing technology, as a rapid prototyping process, is widely used in mold making, industrial design, and other fields to manufacture models or parts. With the increasing variety of consumables and the refinement of colors, the ability to verify and identify the parameters of these consumables is crucial for achieving diverse functions such as multi-color printing and automatic material replenishment when out of stock, and is essential for print quality. Wireless electronic tags can be placed on the filament reel for storing consumables, and the parameter information of the consumables can be identified by reading these tags during use.

[0003] However, in the process of realizing this application, the inventors discovered at least the following problems in the related technology: the wireless electronic tag of the wire reel in the related technology is positioned by clamping it between the limiting plate at the end of the winding drum and the wire, and the installation of the wireless electronic tag is inconvenient. Utility Model Content

[0004] The purpose of this application is to solve the above problems and provide a filament spool for a 3D printer and a 3D printing system, which makes wireless electronic tags highly convenient to install.

[0005] To solve the above-mentioned technical problems, the technical solution adopted in this application is as follows: In a first aspect, this application provides a filament spool for a 3D printer, comprising: The material tray body includes a winding drum, a first limiting plate and a second limiting plate. The first limiting plate is connected to a first end of the winding drum, and the second limiting plate is connected to a second end of the winding drum. The material tray body is provided with an installation groove, which is provided in at least one of the winding drum, the first limiting plate and the second limiting plate. A wireless electronic tag, which is mounted in the mounting slot.

[0006] Optionally, the mounting groove includes a first groove segment, a second groove segment, and a third groove segment that are interconnected. The first groove segment is formed on the wall surface of the first limiting plate away from the winding drum, the second groove segment is formed on the winding drum, and the third groove segment is formed on the wall surface of the second limiting plate away from the winding drum.

[0007] Optionally, the wireless electronic tag includes: The main body includes a first part, a second part, and a third part that are connected to each other. The first part is installed in the first slot, the second part is installed in the second slot, and the third part is installed in the third slot. A first antenna is mounted on the first part; The second antenna is mounted on the third part.

[0008] Optionally, the wireless electronic tag further includes: A conductive connecting wire, wherein the conductive connecting wire is installed on the main body, one end of the conductive connecting wire is connected to the first antenna, and the other end of the conductive connecting wire is connected to the second antenna; and / or, A chip, which is mounted on the main body, and is connected to at least one of the first antenna and the second antenna.

[0009] Optionally, the wire reel further includes: A first limiting structure is mounted on the wall surface of the first limiting plate away from the winding drum, and the first limiting structure closes at least a portion of the opening of the first slot segment; and / or, A second limiting structure is installed on the wall surface of the second limiting plate away from the winding drum, and the second limiting structure closes at least a portion of the opening of the third groove segment.

[0010] Optionally, the winding spool includes: Inner cylinder, An outer cylinder, disposed outside the inner cylinder, forming an accommodating space between the outer cylinder and the inner cylinder, wherein the second groove segment is formed on the wall surface of the outer cylinder facing the inner cylinder; and, At least one reinforcing rib is disposed in the accommodating space, and the reinforcing rib connects the inner cylinder and the outer cylinder.

[0011] Optionally, the winding spool includes: The first connecting cylinder is fixed to the first limiting plate; A second connecting cylinder, the second connecting cylinder being fixed to the second limiting plate; and... The first mating connection structure enables a detachable connection between the first connecting cylinder and the second connecting cylinder.

[0012] Optionally, the first mating connection structure includes: A first latch, wherein the first latch is disposed at one end of the first connecting cylinder near the second connecting cylinder; and The second buckle is located at the end of the second connecting cylinder near the first connecting cylinder.

[0013] Optional, also includes: A limiting block is provided at the end of the first connecting cylinder near the second connecting cylinder; and, The second connecting cylinder has a limiting groove at its end near the end of the first connecting cylinder, and the limiting block extends into at least part of the limiting groove.

[0014] Secondly, this application provides a 3D printing system, which includes: A 3D printer, the 3D printer including a printhead; As described above, the wire reel has a winding spool containing wire, which is connected to the print head.

[0015] One of the above technical solutions has the following advantages or beneficial effects: The wire reel of this application includes the reel body and the wireless electronic tag. In use, the consumable wire is wound onto the winding drum. The first limiting plate and the second limiting plate limit the sides of the cylindrical body formed after the consumable wire is wound. The wireless electronic tag can be used to identify the consumables wound on the reel body. The reel body is provided with a mounting groove for installing the wireless electronic tag. The mounting groove is opened in at least one of the winding drum, the first limiting plate, and the second limiting plate. Placing the wireless electronic tag in the mounting groove allows for installation of the wireless electronic tag, making the wireless electronic tag highly convenient to install. Furthermore, compared to the method of clamping the wireless electronic tag between the limiting plate and the wire at the end of the winding drum, the risk of the wireless electronic tag being damaged by the limiting plate and the wire can be reduced. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the filament spool for 3D printing according to the present application from a first angle.

[0017] Figure 2 This is an exploded view of the filament spool for 3D printing from a first angle according to this application.

[0018] Figure 3 This is a structural schematic diagram of the filament spool for 3D printing of this application from a second angle.

[0019] Figure 4 for Figure 3 The diagram shows a cross-section along AA.

[0020] Figure 5 This is a schematic diagram of the structure of the wireless electronic tag of this application.

[0021] Figure 6 This is a structural schematic diagram of the first angle at which the first limiting plate and the first connecting cylinder are assembled in this application.

[0022] Figure 7 This is a structural schematic diagram of the second angle of the assembly of the first limiting plate and the first connecting cylinder in this application.

[0023] Figure 8 This is a structural schematic diagram of the first angle at which the second limiting plate and the second connecting cylinder are assembled in this application.

[0024] Figure 9 This is a structural schematic diagram of the second angle at which the second limiting plate and the second connecting cylinder are assembled in this application.

[0025] Figure 10 for Figure 3 The diagram shows a cross-sectional view along BB.

[0026] Among them, 1-wireless electronic tag, 11-main body, 111-first part, 112-second part, 113-third part, 12-first antenna, 13-second antenna, 14-conductive connecting wire, 15-chip, 2-material tray body, 21-winding drum, 211-inner cylinder, 212-outer cylinder, 213-accommodating space, 214-first connecting cylinder, 215-second connecting cylinder, 216-first mating connection structure, 2161-first buckle, 2162-second buckle, 2171-limiting block, 2172-limiting groove, 218-reinforcing rib, 22-first limiting plate, 221-first limiting structure, 23-second limiting plate, 231-second limiting structure, 24-mounting groove, 241-first groove segment, 242-second groove segment, 243-third groove segment. Detailed Implementation

[0027] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intervening element present.

[0028] In this application, the use of terms such as "first" and "second" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0029] In a first aspect, embodiments of this application provide a filament reel for a 3D printer, the filament reel being used to wind up filaments and other thread-like objects for 3D printing; see also Figures 1 to 3The wire reel includes a reel body 2 and a wireless electronic tag 1.

[0030] The main body 2 of the tray is configured to wind consumable wire; the main body 2 of the tray includes a winding drum 21, a first limiting plate 22 and a second limiting plate 23, the first limiting plate 22 is connected to the first end of the winding drum 21, the second limiting plate 23 is connected to the second end of the winding drum 21, the main body 2 of the tray is provided with an installation groove 24, the installation groove 24 is provided in at least one of the winding drum 21, the first limiting plate 22 and the second limiting plate 23; the wireless electronic tag 1 is installed in the installation groove 24.

[0031] The wire reel of this application includes a reel body 2 and a wireless electronic tag 1. In use, consumable wire is wound onto a winding drum 21. A first limiting plate 22 and a second limiting plate 23 limit the sides of the cylindrical body formed after the wire is wound. The wireless electronic tag 1 can be used to identify the consumables wound on the reel body 2. The reel body 2 is provided with a mounting groove 24 for installing the wireless electronic tag 1. The mounting groove 24 is formed in at least one of the winding drum 21, the first limiting plate 22, and the second limiting plate 23. Placing the wireless electronic tag in the mounting groove allows for installation, making the wireless electronic tag highly convenient to install. Furthermore, compared to the method of clamping the wireless electronic tag between the limiting plate and the wire at the end of the winding drum, the risk of the wireless electronic tag being damaged by the limiting plate and the wire is reduced.

[0032] See Figure 4 As shown, the mounting groove 24 includes a first groove segment 241, a second groove segment 242, and a third groove segment 243 that are interconnected. The first groove segment 241 is formed on the wall of the first limiting plate 22 away from the winding drum 21, the second groove segment 242 is formed on the winding drum 21, and the third groove segment 243 is formed on the wall of the second limiting plate 23 away from the winding drum 21.

[0033] See Figure 2 and Figure 5 As shown, the wireless electronic tag 1 includes a main body 11, a first antenna 12, and a second antenna 13; the main body 11 includes a first part 111, a second part 112, and a third part 113 connected to each other, the first part 111 is installed in a first slot 241, the second part 112 is installed in a second slot 242, and the third part 113 is installed in a third slot 243; the first antenna 12 is installed in the first part 111; and the second antenna 13 is installed in the third part 113.

[0034] The first antenna 12 and the second antenna 13 are respectively disposed in the first part 111 and the second part 112, so that the first antenna 12 and the second antenna 13 are respectively disposed on both sides of the main body 2 of the material tray. The dual-antenna structure eliminates the need for orientation adjustment of the material tray during the identification operation, allowing the wireless electronic tag 1 and the wireless electronic tag 1 reading module to be aligned, which facilitates operation and improves identification efficiency and reliability. The structural arrangement of the wireless electronic tag 1 and the mounting slot 24 allows the wireless electronic tag 1 to be disposed on both sides of the main body 2 of the material tray. The dual-antenna structure eliminates the need for orientation adjustment of the material tray during the identification operation, allowing the wireless electronic tag 1 and the wireless electronic tag 1 reading module to be aligned, which facilitates operation and improves identification efficiency and reliability.

[0035] The existing filament reels in related technologies only have a wireless electronic tag in a single position. During operation, the reel needs to be rotated multiple times to locate the tag for identification, which is inconvenient. Furthermore, the alignment of the wireless electronic tag with the printer antenna is critical, and blind spots or recognition failures are prone to occur in actual operation. Therefore, it is essential to provide a filament reel that is easy to operate and improves recognition efficiency and reliability. The filament reel for 3D printers provided in this embodiment, through the arrangement of the first antenna 12 and the second antenna 13, not only makes the filament reel easier to operate but also improves recognition efficiency and reliability.

[0036] The wireless electronic tag 1 also includes a conductive connecting line 14 and / or a chip 15. The conductive connecting line 14 is mounted on the body 11, with one end connected to a first antenna 12 and the other end connected to a second antenna 13. The chip 15 is mounted on the body and is connected to at least one of the first antenna 12 and the second antenna 13.

[0037] When both the first antenna 12 and the second antenna 13 in the wireless electronic tag 1 are electrically connected to the chip 15, a closed electrical signal structure is formed through the dual antenna units of the first antenna 12 and the second antenna 13. This allows for collaborative identification, data verification, and redundant communication during reading using the dual wireless electronic tags 1, improving identification stability and security. The chip 15 is configured to record production and usage information of the consumables. The chip 15 enables the wireless electronic tag 1 to have an information processing unit. By recording information such as the unique code, production batch, and number of uses of the consumables, it achieves digital identification and full lifecycle management of the consumables, enabling digital management and cloud tracking of printing consumables. Furthermore, it allows for dual wireless electronic tag 1 verification, information synchronization, or anti-tampering identification during reading or burning, enhancing the anti-counterfeiting and traceability capabilities of the consumables and reducing the risk of counterfeit consumables entering the market. In some embodiments, the wireless electronic tag 1 further includes a flexible substrate; the conductive connecting line 14, the first antenna 12, and the second antenna 13 are all disposed on the flexible substrate; the conductive connecting line 14 is disposed in the middle region of the flexible substrate, and the first antenna 12 and the second antenna 13 are respectively disposed at both ends of the flexible substrate. The flexible substrate facilitates the installation of the wireless electronic tag 1 on the tray body 2. The chip 15 is integrated into the conductive connecting line 14.

[0038] Optionally, the first part 111 and the third part 113 of the wireless electronic tag 1 are respectively installed in the first groove section 241 and the third groove section 243 via adhesive layers. The adhesive layer enhances the connection strength between the wireless electronic tag 1 and the tray body 2, improving the installation's firmness and durability. During installation, the wireless electronic tag 1 is simply attached to the mounting groove 24 via the adhesive layer, simplifying installation and increasing efficiency. The wireless electronic tag 1 is positioned by the mounting groove 24 and fixed to the surface of the tray body 2 by adhesive, ensuring that the wireless electronic tag 1 is flat and stable, preventing damage to the wireless electronic tag 1 due to vibration or transportation during printer use. Optionally, the adhesive layer is a pressure-sensitive adhesive layer or a hot melt adhesive layer.

[0039] Optional, see Figures 6 to 9 As shown, the wire reel also includes a first limiting structure 221 and / or a second limiting structure 231; the first limiting structure 221 is installed on the wall of the first limiting plate 22 away from the winding drum 21, and the first limiting structure 221 closes at least a portion of the opening of the first slot section 241; the second limiting structure 231 is installed on the wall of the second limiting plate 23 away from the winding drum 21, and the second limiting structure 231 closes at least a portion of the opening of the third slot section 243.

[0040] The first limiting structure 221 and the second limiting structure 231 respectively block parts of the first slot segment 241 and the third slot segment 243. When the wireless electronic tag 1 is placed in the mounting slot 24, the first antenna 12 is installed in the first part 111. The first limiting structure 221 limits the plane of the first antenna 12 away from the bottom of the first slot segment 241. The second antenna 13 is installed in the third part 113. The second limiting structure 231 limits the plane of the third part 113 away from the bottom of the third slot segment 243. This prevents the edge area of ​​the wireless electronic tag 1 from lifting up when it is installed in the mounting slot 24, causing the wireless electronic tag 1 to fall out of the mounting slot 24, thus improving the stability of the installation of the wireless electronic tag 1.

[0041] The winding drum 21 includes an inner drum 211, an outer drum 212, and at least one reinforcing rib 218; the outer drum 212 is disposed outside the inner drum 211, and an accommodating space 213 is formed between the inner drum 211 and the outer drum 212; a second groove section 242 is formed on the wall surface of the outer drum 212 facing the inner drum 211; the reinforcing rib 218 is disposed in the accommodating space 213, and the reinforcing rib 218 connects the inner drum 211 and the outer drum 212.

[0042] In some embodiments, the reinforcing ribs 218 are radially distributed within the accommodating space 213 along the central axis of the winding drum 21. The arrangement of the reinforcing ribs 218 ensures the connection strength between the inner drum 211 and the outer drum 212, and ensures the structural stability of the winding drum 21; the radial arrangement of the reinforcing ribs 218 ensures the uniform distribution of structural forces in the winding drum 21, ensures the stability of the rotation of the wire reel, and prevents the deflection of the winding drum 21 from affecting the rotational stability of the wire reel.

[0043] See Figure 3 and Figure 10 As shown, the winding drum 21 includes a first connecting drum 214, a second connecting drum 215, and a first mating connection structure 216; the first connecting drum 214 is fixed to the first limiting plate 22; the second connecting drum 215 is fixed to the second limiting plate 23; the first mating connection structure 216 realizes the detachable connection between the first connecting drum 214 and the second connecting drum 215.

[0044] The first connecting cylinder 214 and the second connecting cylinder 215 are respectively perpendicular to the planes of the first limiting plate 22 and the second limiting plate 23, and are positioned opposite each other. In use, the wireless electronic tag 1 passes through the receiving space 213. The first connecting cylinder 214 and the second connecting cylinder 215 are connected by a first mating connection structure 216, allowing the tray body 2 to be detachable via a snap-fit ​​structure, ensuring the structural stability of the tray body 2 while improving installation efficiency.

[0045] The first mating connection structure 216 includes a first buckle 2161 and a second buckle 2162; the first buckle 2161 is located at one end of the first connecting cylinder 214 near the second connecting cylinder 215, and the second buckle 2162 is located at one end of the second connecting cylinder 215 near the first connecting cylinder 214.

[0046] The first mating connection structure 216 is a snap-fit ​​structure. The first snap-fit ​​2161 and the second snap-fit ​​2162 engage with each other to achieve a mating connection between the first connecting cylinder 214 and the second connecting cylinder 215. It is understood that in some embodiments, the positions of the first snap-fit ​​2161 and the second snap-fit ​​2162 can be interchanged between the first connecting cylinder 214 and the second connecting cylinder 215. That is, when one of the first connecting cylinder 214 and the second connecting cylinder 215 has the first snap-fit ​​2161, the second snap-fit ​​2162 is located on the other of the first connecting cylinder 214 and the second connecting cylinder 215. In other embodiments, the first connecting cylinder 214 can simultaneously have the first snap-fit ​​2161 and the second snap-fit ​​2162, and the second connecting cylinder 215 has the second snap-fit ​​2162 and the first snap-fit ​​2161 respectively engaging with the first snap-fit ​​2161 and the second snap-fit ​​2162. In some embodiments, the first buckle 2161 is an I-shaped buckle block vertically disposed on the outer wall of the inner cylinder 211, and the second buckle 2162 is an L-shaped buckle block vertically disposed on the outer wall of the inner cylinder 211. The I-shaped buckle block and the L-shaped buckle block are engaged with each other by rotating the first connecting cylinder 214 and / or the second connecting cylinder 215 to realize the mutual connection between the first connecting cylinder 214 and the second connecting cylinder 215.

[0047] See Figure 2 and Figures 6 to 9 As shown, the wire reel also includes a limiting block 2171, which is located at the end of the first connecting cylinder 214 near the second connecting cylinder 215; and the end of the second connecting cylinder 215 near the first connecting cylinder 214 has a limiting groove 2172, with the limiting block 2171 extending into at least part of the limiting groove.

[0048] Optionally, in a direction parallel to the central axis of the winding drum 21, the height at which the limiting block 2171 protrudes relative to the end face of the first connecting drum 214 is equal to or less than the depth at which the limiting groove 2172 is recessed towards the second limiting plate 23. The limiting block 2171 is inserted into the limiting groove 2172 simultaneously with the first connecting drum 214 and the second connecting drum 215 connected by the first mating connection structure 216. The first connecting drum 214 and the second connecting drum 215 each include an inner drum 211 and an outer drum 212; optionally, the limiting block 2171 and the limiting groove 2172 may be located at opposite ends of the inner drum 211; and / or, the limiting block 2171 and the limiting groove 2172 may be located at opposite ends of the outer drum 212. The mutual cooperation of the limiting block 2171 and the limiting groove 2172 prevents relative rotation of the first connecting cylinder 214 and the second connecting cylinder 215 in the axial direction, thereby improving the assembly stability between the first connecting cylinder 214 and the second connecting cylinder 215. The cooperation of the limiting block 2171 and the limiting groove 2172, together with the first mating connection structure 216, jointly assembles and limits the first connecting cylinder 214 and the second connecting cylinder 215, ensuring a stable connection between the first connecting cylinder 214 and the second connecting cylinder 215, and thus improving the reliability of the wire reel assembly.

[0049] Secondly, embodiments of this application provide a 3D printing system, which includes a 3D printer and a filament spool as described above; the 3D printer includes a print head; the filament spool has filament installed on its winding drum, and the filament is connected to the print head.

[0050] The 3D printer may also include a frame, a forming platform, and displacement components in the X, Y, and Z directions. The X direction can be a horizontal direction, the Y direction can be a horizontal forward-backward direction, and the Z direction can be a vertical direction or a vertical direction.

[0051] The printhead and forming platform move relative to each other in a controlled manner, driven by displacement components. For example, the forming platform can be displaced relative to the frame in the Y direction by a displacement component in the Y direction, and the printhead can be displaced in the X and / or Z directions by displacement components in the X and Z directions, heating and melting the filament along a set path and printing it onto the forming platform to form a printed part. The X, Y, and Z displacement components can be driven by lead screws and nuts, belts, or other mechanisms, and are not limited here.

[0052] In this embodiment, optionally, the frame includes a base and a gantry, with the gantry connected to the base. The forming platform is movably disposed on the base along the Y-axis. The gantry includes two columns spaced apart along the X-axis and a crossbeam connecting the ends of the two columns away from the base, wherein the columns extend along the Z-axis. The crossbeam and columns can be integrally formed or a separate structure connected by bolts or other connecting components. An optical axis movable along the Z-axis is connected between the two columns, and the print head is movably disposed on the optical axis along the X-axis. Thus, the print head can be displaced along the X-axis on the optical axis, and / or displaced along the Z-axis together with the optical axis.

[0053] In other embodiments, the rack may also take other forms of structure, which are not limited here.

[0054] In other embodiments, the movement of the printhead and the forming platform can also take other forms. For example, the forming platform may remain stationary, while the printhead may be displaced relative to the forming platform along the X, Y, and Z directions, respectively. Alternatively, the forming platform may be displaced along the X and Y directions, and the printhead may be displaced along the Z direction.

[0055] In some embodiments, the 3D printer may further include a housing that defines a receiving cavity in which the print head and forming platform are both disposed. The housing separates the internal and external spaces of the 3D printer, ensuring a stable printing environment. The housing may have a door that can be opened or closed to facilitate the removal of the printed parts.

[0056] In this embodiment, the printhead includes a printhead body and a hot end device. The printhead body is movable relative to the forming platform. For example, the printhead body is slidably disposed on the optical axis along the X-direction, so that the printhead body can move along the X-direction relative to the optical axis, or move along the Z-direction together with the optical axis. The forming platform is slidably disposed along the Y-direction. Thus, the printhead body and the forming platform are movable relative to each other.

[0057] The hot end device may include a heat sink, a heat conductor, a throat, and a nozzle. The heat conductor and the heat sink are spaced apart. A part of the throat is in contact with the heat conductor, and another part of the throat is in contact with the heat sink. The nozzle is connected to the heat conductor and communicates with the throat.

[0058] Optionally, the printhead body may include a substrate and a front shell, the substrate being slidably connected to the optical axis, the front shell being connected to the substrate, and a hot-end device being installed between the front shell and the substrate. The hot-end device can move synchronously with the printhead body.

[0059] The printhead may also include an extrusion assembly. The extrusion assembly is fixed relative to the hot end device, for example, the extrusion assembly and the hot end device are respectively fixedly mounted on the printhead body so that the two can move synchronously. The extrusion assembly is used to feed consumables to the hot end device, which is located below the extrusion assembly in the Z direction. The hot end device is used to receive the consumables fed by the extrusion assembly, heat and melt the consumables and print them onto the forming platform to form a printed part.

[0060] The consumables can be linear polymer materials, also known as filaments. Examples of consumables include PLA (Polylactic Acid), PETG (Polyethylene Terephthalate Glycol), TPU (Thermoplastic Polyurethane), PVA (Polyvinyl Alcohol), BVOH (Butylene Vinyl Alcohol Copolymer), ABS (Acrylonitrile Butadiene Styrene), ASA (Acrylonitrile Styrene Acrylate), PC (Polycarbonate), PA (Polyamide), PET (Polyethylene Terephthalate), and PPS (Polyphenylene Powder). Sulfide (polyphenylene sulfide), carbon fiber reinforced materials (referring to a mixture of PLA and other base materials with carbon fiber), or glass fiber reinforced materials (referring to a mixture of PLA and other base materials with glass fiber), etc.

[0061] The extrusion assembly may include a driving extrusion wheel and a driven extrusion wheel, defining a consumable channel between them. In use, consumables (such as linear consumables) are placed into the consumable channel and clamped by the driving and driven extrusion wheels. The driving extrusion wheel is then driven (e.g., by a motor) to rotate, thereby conveying the consumable to the hot end device.

[0062] The consumables can be wound on a wire reel, and the consumables are conveyed to the consumable channel by the rolling of the wire reel. The wire reel can be set in a material box or on a material rack. Understandably, multiple material reels can be set in the material box or on the material rack, and the material and / or color of the consumables wound on different material reels can be the same or different.

[0063] In other embodiments, the printhead may not include an extrusion assembly. In this case, the extrusion assembly may be arranged distally, for example, fixedly mounted to the frame, fixed to the end of the optical axis, or fixed to the hopper or feed rack.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above embodiments merely illustrate preferred implementations of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A filament spool for a 3D printer, characterized in that, include: The material tray body includes a winding drum, a first limiting plate and a second limiting plate. The first limiting plate is connected to a first end of the winding drum, and the second limiting plate is connected to a second end of the winding drum. The material tray body is provided with an installation groove, which is provided in at least one of the winding drum, the first limiting plate and the second limiting plate. A wireless electronic tag, which is mounted in the mounting slot.

2. The wire reel according to claim 1, characterized in that, The mounting groove includes a first groove segment, a second groove segment, and a third groove segment that are interconnected. The first groove segment is formed on the wall surface of the first limiting plate away from the winding drum, the second groove segment is formed on the winding drum, and the third groove segment is formed on the wall surface of the second limiting plate away from the winding drum.

3. The wire reel according to claim 2, characterized in that, The wireless electronic tag includes: The main body includes a first part, a second part, and a third part that are connected to each other. The first part is installed in the first slot, the second part is installed in the second slot, and the third part is installed in the third slot. A first antenna is mounted on the first part; The second antenna is mounted on the third part.

4. The wire reel according to claim 3, characterized in that, The wireless electronic tag also includes: A conductive connecting wire, wherein the conductive connecting wire is installed on the main body, one end of the conductive connecting wire is connected to the first antenna, and the other end of the conductive connecting wire is connected to the second antenna; and / or, A chip, which is mounted on the main body, and is connected to at least one of the first antenna and the second antenna.

5. The wire reel according to claim 2, characterized in that, Also includes: A first limiting structure is mounted on the wall surface of the first limiting plate away from the winding drum, and the first limiting structure closes at least a portion of the opening of the first slot segment; and / or, A second limiting structure is installed on the wall surface of the second limiting plate away from the winding drum, and the second limiting structure closes at least a portion of the opening of the third groove segment.

6. The wire reel according to claim 2, characterized in that, The winding drum includes: Inner cylinder, An outer cylinder, disposed outside the inner cylinder, forming an accommodating space between the outer cylinder and the inner cylinder, wherein the second groove segment is formed on the wall surface of the outer cylinder facing the inner cylinder; and, At least one reinforcing rib is disposed in the accommodating space, and the reinforcing rib connects the inner cylinder and the outer cylinder.

7. The wire reel according to claim 1, characterized in that, The winding drum includes: The first connecting cylinder is fixed to the first limiting plate; A second connecting cylinder, the second connecting cylinder being fixed to the second limiting plate; and... The first mating connection structure enables a detachable connection between the first connecting cylinder and the second connecting cylinder.

8. The wire reel according to claim 7, characterized in that, The first mating connection structure includes: A first latch, wherein the first latch is disposed at one end of the first connecting cylinder near the second connecting cylinder; and The second buckle is located at the end of the second connecting cylinder near the first connecting cylinder.

9. The wire reel according to claim 7, characterized in that, Also includes: A limiting block is provided at the end of the first connecting cylinder near the second connecting cylinder; and, The second connecting cylinder has a limiting groove at its end near the end of the first connecting cylinder, and the limiting block extends into at least part of the limiting groove.

10. A 3D printing system, characterized in that, include: A 3D printer, the 3D printer including a printhead; The wire reel as described in any one of claims 1 to 9, wherein the wire reel has a winding drum on which wire is mounted, and the wire is connected to the print head.

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