Three-dimensional printer

Abstract

The application provides a three-dimensional printer for connecting a feeding device; the three-dimensional printer comprises a machine box and a pneumatic connector; the machine box is provided with a mounting port; a matching part is arranged on the inner side wall of the machine box; the pneumatic connector is detachably mounted on the mounting port of the machine box from the outside of the machine box; one end of the pneumatic connector exposed outside the machine box is connected with the feeding device, and the other end of the pneumatic connector located inside the machine box comprises a mounting part which is detachably connected with the matching part. The pneumatic connector of the three-dimensional printer provided by the application can be mounted and detached outside the machine box, and the pneumatic connector is convenient to disassemble, assemble and maintain.

Description

Technical Field

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

[0002] A 3D printer, also known as a stereo printer, is a rapid prototyping device that typically uses digital technology to print materials. 3D printers are commonly used in mold making, industrial design, and other fields to create models or parts. In recent years, 3D printing technology has shown great promise in fields such as jewelry, footwear, industrial design, architecture, automotive, aerospace, dental and medical industries, education, geographic information systems, and civil engineering.

[0003] The principle of 3D printing is to heat and melt the printing material, then extrude and cool it to form a shape. Therefore, a heat source is needed to continuously heat the printing material inside the nozzle of the 3D printer during this process. The printing unit and the feeding unit of the 3D printer are connected via a pneumatic connector, which is fixedly installed on the chassis of the printing unit to allow communication between the inside and outside of the chassis. In existing 3D printers, repairing the pneumatic connector may result in damage to the connector or the chassis. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a 3D printer whose pneumatic connector can be installed and removed from the outside of the machine casing, facilitating the assembly, disassembly, and maintenance of the pneumatic connector.

[0005] This application provides a 3D printer, which is used to connect to a feeding device; the 3D printer includes: The chassis has a mounting port; the inner side wall of the chassis is provided with a mating part; A pneumatic connector is configured to be detachably installed from the outside of the chassis into the mounting port of the chassis; one end of the pneumatic connector protruding from the outside of the chassis is connected to the feeding device, and the end of the pneumatic connector located inside the chassis includes a mounting portion, which is detachably connected to the mating portion.

[0006] In one possible implementation, the chassis includes a back panel with a first surface and a second surface disposed opposite to each other, the first surface facing the interior of the chassis and the second surface facing away from the interior of the chassis; a mounting opening extends through the first surface and the second surface, and the pneumatic connector is configured to be mounted at an angle relative to the first surface to the mounting opening; a mating portion includes a first mating portion and a second mating portion, the first mating portion and the second mating portion being spaced apart on the first surface and located around the mounting opening; a mounting portion includes a first mounting portion and a second mounting portion, the first mounting portion and the second mounting portion being disposed on opposite sides of the pneumatic connector in the circumferential direction; the first mounting portion and the first mating portion are detachably connected, and the second mounting portion and the second mating portion are detachably connected.

[0007] In one possible implementation, in the first mating portion and the first mounting portion, one includes a first protrusion and the other includes a first groove, and the first mating portion and the first mounting portion are elastically engaged; in the second mating portion and the second mounting portion, one includes a second protrusion and the other includes a second groove, and the second mating portion and the second mounting portion are elastically engaged.

[0008] In one possible implementation, the pneumatic connector further includes a retaining portion that abuts against the second surface.

[0009] In one possible implementation, the first mating portion includes the first protrusion, the first mounting portion includes the first groove, and the first protrusion engages with the first groove; the second mating portion includes the second protrusion, the second mounting portion includes the second groove, and the second protrusion engages with the second groove.

[0010] In one possible implementation, the size of the first groove gradually decreases from the opening to the bottom, and the size of the first protrusion gradually decreases from near the first surface to away from the first surface; the size of the second groove gradually decreases from the opening to the bottom, and the size of the second protrusion gradually decreases from near the first surface to away from the first surface.

[0011] In one possible implementation, the first groove includes a first inner wall surface and a second inner wall surface that are opposite to and spaced apart, both the first inner wall surface and the second inner wall surface being inclined relative to the depth direction of the first groove, and the first inner wall surface being farther away from the second groove relative to the second inner wall surface; the first protrusion includes a first outer wall surface and a second outer wall surface that are opposite to and spaced apart, both the first outer wall surface and the second outer wall surface being inclined relative to the height direction of the first protrusion, and the first outer wall surface being farther away from the second protrusion relative to the second outer wall surface; the first inner wall surface abuts against the first outer wall surface, and the second inner wall surface is opposite to and spaced apart from the second outer wall surface.

[0012] In one possible implementation, the second groove includes a third inner wall surface and a fourth inner wall surface that are opposite to and spaced apart, the fourth inner wall surface being inclined relative to the depth direction of the second groove, and the third inner wall surface being closer to the first groove relative to the fourth inner wall surface; the second protrusion includes a third outer wall surface and a fourth outer wall surface that are opposite to and spaced apart, the fourth outer wall surface being inclined relative to the height direction of the second protrusion, and the third outer wall surface being closer to the first protrusion relative to the fourth outer wall surface; the third inner wall surface and the third outer wall surface are opposite to and spaced apart, and the fourth inner wall surface and the fourth outer wall surface abut against each other.

[0013] In one possible implementation, the vertical distance between the portion of the fourth inner wall surface that abuts against the fourth outer wall surface is [0.49, 0.61] mm.

[0014] In one possible implementation, the 3D printer further includes functional components mounted inside the chassis and surrounding the mounting opening, the functional components including at least one of a synchronous belt motor, a filter fan, a heating fan, a cooling fan, and an electronics compartment.

[0015] In one possible implementation, the chassis also has a handle position.

[0016] In one possible implementation, the handle is located on the outer wall of the chassis at the end away from the mounting opening, and the handle is recessed toward the interior of the chassis.

[0017] In one possible implementation, the 3D printer further includes a light strip assembly that is arranged around the inner sidewall of the chassis and is used to illuminate the interior of the chassis.

[0018] In one possible implementation, the inner wall of the chassis includes a first wall, a second wall, and a third wall, the second wall being connected between the first wall and the third wall, and the first wall and the third wall being opposite to and spaced apart from each other; the light strip assembly includes a first light strip, a second light strip, and a third light strip, the first light strip being disposed on the first wall, the second light strip being disposed on the second wall, and the third light strip being disposed on the third wall.

[0019] In one possible implementation, the 3D printer further includes a display screen, a rotating component, and a storage disk, the rotating component being rotatably connected to the chassis and the display screen; the rotating component has a connector, and the storage disk is inserted into the connector.

[0020] In one possible implementation, the interface is configured such that the storage disk is inserted along a direction parallel to the outer side wall of the chassis.

[0021] The 3D printer provided in this application is configured to be detachably installed from the outside of the chassis onto the mounting port of the chassis via a pneumatic connector. The mounting part of the pneumatic connector is detachably connected to the mating part on the inner side wall of the chassis. By operating one end of the pneumatic connector protruding from the outside of the chassis, the pneumatic connector can be installed onto the chassis, or by operating one end of the pneumatic connector protruding from the outside of the chassis, the pneumatic connector can be removed from the chassis. This allows the pneumatic connector to be installed and removed from the outside of the chassis, avoiding the need to install and remove the pneumatic connector from inside the chassis, thus facilitating the installation, removal, and maintenance of the pneumatic connector. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below.

[0023] Figure 1 This application provides an embodiment of an assembly structure for a 3D printer. Figure 1 ; Figure 2 yes Figure 1 The image shown is an enlarged view of the 3D printer at point A. Figure 3 This application provides an embodiment of an assembly structure for a 3D printer. Figure 2 ; Figure 4 yes Figure 3 The image shown is an enlarged view of the 3D printer at point B. Figure 5 This application provides an embodiment of an assembly structure for a 3D printer. Figure 3 ; Figure 6 yes Figure 5 The image shows an enlarged view of the 3D printer at point C. Figure 7 This application provides an embodiment of an assembly structure for a 3D printer. Figure 4 ; Figure 8 yes Figure 7 The image shown is an enlarged view of the 3D printer at point D. Figure 9 This is a structural diagram of a backplate provided in one embodiment of this application; Figure 10 yes Figure 9 The image shows an enlarged view of the back panel at point E. Figure 11 This is a structural diagram of a pneumatic connector provided in one embodiment of this application; Figure 12 This is a schematic diagram illustrating the assembly process between a pneumatic connector and a backplate according to an embodiment of this application.

[0024] Explanation of icon numbers: Feeding device-G, chassis-10, working space-11, first wall surface-111, second wall surface-112, third wall surface-113, mounting port-12, first section-121, second section-122, third section-123, mating part-13, first mating part-131, first protrusion-1310, first outer wall surface-1311, second outer wall surface-1312, second mating part-132, second protrusion-1320, third outer wall surface-1321, fourth outer wall surface-1322, back plate-14, first surface-141, second surface-142, wrench position-15, pneumatic connector -20, Mounting part -21, First mounting part -211, First groove -2110, First inner wall surface -2111, Second inner wall surface -2112, Second mounting part -212, Second groove -2120, Third inner wall surface -2121, Fourth inner wall surface -2122, Supporting part -22, Print head -30, Functional component -31, Synchronous belt motor -31a, Electronic compartment -31b, Light strip assembly -32, First light strip -321, Second light strip -322, Third light strip -323, Display screen -33, Rotating component -34, Plug-in interface -341, Storage disk -35, Guide component -40. Detailed Implementation

[0025] The technical solution of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application.

[0026] The following descriptions of the embodiments are based on the accompanying drawings and are used to illustrate specific embodiments in which this application can be implemented. Directional terms used in the description of this application, such as "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "top surface," "side surface," "bottom surface," "top wall," "side wall," "bottom wall," "inner side wall," "outer side wall," "length direction," "width direction," and "height direction," are merely for reference to the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of this application, and do not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In the description of this application, terms such as "first," "second," "third," and "fourth" are only used to distinguish the described objects and do not have any sequential or technical meaning. In the description of this application, the terms "connection" and "linkage," unless otherwise specified, include both direct connection (linkage) and indirect connection (linkage).

[0027] Please see Figures 1 to 6 , Figure 1 This application provides an embodiment of an assembly structure for a 3D printer. Figure 1 , Figure 2 yes Figure 1 The image shown is an enlarged view of the 3D printer at point A. Figure 3 This application provides an embodiment of an assembly structure for a 3D printer. Figure 2 , Figure 4 yes Figure 3 The image shown is an enlarged view of the 3D printer at point B. Figure 5 This application provides an embodiment of an assembly structure for a 3D printer. Figure 3 , Figure 6 yes Figure 5 The image shows an enlarged view of the 3D printer at point C.

[0028] This application provides a 3D printer for connecting to a feeding device G to achieve 3D printing. The 3D printer includes a chassis 10, a pneumatic connector 20, and a print head 30. The chassis 10 encloses a working space 11. The pneumatic connector 20 is installed in the chassis 10 and connects to the working space 11, i.e., the pneumatic connector 20 connects the interior and exterior of the chassis 10. The print head 30 is disposed within the working space 11 of the chassis 10. The print head 30 is connected to the feeding device G via the pneumatic connector 20, allowing printing material in the feeding device G to enter the print head 30 through the pneumatic connector 20, thereby achieving the 3D printing function. The 3D printer also includes a guide 40, with the print head 30 slidably connected to the guide 40 and movable along the guide 40 within the working space 11.

[0029] In this embodiment, the chassis 10 has a mounting port 12, which connects to the working space 11 of the chassis 10, i.e., the mounting port 12 connects the interior and exterior of the chassis 10. A pneumatic connector 20 is configured to be detachably mounted to the mounting port 12 from the exterior of the chassis 10. One end of the pneumatic connector 20 protruding from the working space 11 of the chassis 10 is connected to the feeding device G, and the end of the pneumatic connector 20 located in the working space 11 of the chassis 10 is connected to the print head 30. A mating part 13 is provided on the inner sidewall of the chassis 10. The end of the pneumatic connector 20 located in the working space 11 of the chassis 10 includes a mounting part 21, and the mounting part 21 and the mating part 13 are detachably connected.

[0030] The 3D printer provided in this embodiment is configured via a pneumatic connector 20 to be detachably mounted from the outside of the housing 10 to the mounting port 12 of the housing 10, so that the working space 11 enclosed by the housing 10 can communicate with the outside of the housing 10 through the pneumatic connector 20. Furthermore, the mounting portion 21 of the pneumatic connector 20 is detachably connected to the mating portion 13 on the inner side wall of the housing 10. Operating the end of the pneumatic connector 20 protruding from the outside of the housing 10 allows the pneumatic connector 20 to be installed on the housing 10, or to be detached from the housing 10 by operating the end of the pneumatic connector 20 protruding from the housing 10. This allows the pneumatic connector 20 to be installed and removed from the outside of the housing 10, avoiding installation and removal of the pneumatic connector 20 from inside the housing 10, thus facilitating the installation, removal, and maintenance of the pneumatic connector 20.

[0031] In one implementation, please refer to Figure 1 and Figure 6 The chassis 10 includes a back plate 14, which includes a first surface 141 and a second surface 142 disposed opposite to each other. The first surface 141 faces the interior of the chassis 10, and the second surface 142 faces away from the interior of the chassis 10. A mounting port 12 extends through the first surface 141 and the second surface 142. A pneumatic connector 20 is configured to be installed at an angle relative to the first surface 141 in the mounting port 12. That is, the pneumatic connector 20 passes from the second surface 142 of the back plate 14 through the mounting port 12 at an angle relative to the back plate 14 to the first surface 141 of the back plate 14. Thus, the 3D printer provided in this embodiment can achieve a detachable connection between the mating part 13 and the mounting part 21, so that the pneumatic connector 20 can be installed on the back plate 14 of the chassis 10.

[0032] Please see Figures 7 to 11 , Figure 7 This application provides an embodiment of an assembly structure for a 3D printer. Figure 4 , Figure 8 yes Figure 7 The image shown is an enlarged view of the 3D printer at point D. Figure 9 This is a structural diagram of a backplate provided in one embodiment of this application. Figure 10 yes Figure 9 The image shown is an enlarged view of the back panel at point E. Figure 11 This is a structural diagram of a pneumatic connector provided in one embodiment of this application.

[0033] Specifically, the mating part 13 includes a first mating part 131 and a second mating part 132, which are spaced apart on the first surface 141 and located around the mounting port 12. The mounting part 21 includes a first mounting part 211 and a second mounting part 212, which are located on opposite sides of the pneumatic connector 20 in the circumferential direction. After the pneumatic connector 20 passes obliquely from the second surface 142 of the back plate 14 through the mounting port 12 relative to the back plate 14 to the first surface 141 of the back plate 14, the first mounting part 211 and the first mating part 131 are detachably connected, and the second mounting part 212 and the second mating part 132 are detachably connected. Therefore, the 3D printer provided in this embodiment has a double-fit connection structure between the pneumatic connector 20 and the back plate 14 through the first mounting part 211 and the first mating part 131, and the second mounting part 212 and the second mating part 132, which is beneficial to improving the stability of the pneumatic connector 20 installed at the mounting port 12 of the back plate 14.

[0034] For more details, please refer to Figures 7 to 11 The mounting port 12 includes a first segment 121, a second segment 122, and a third segment 123 arranged sequentially along a first direction, with the second segment 122 located between the first segment 121 and the third segment 123. In a second direction perpendicular to the first direction, the size of the second segment 122 is smaller than the size of the first segment 121, and the size of the second segment 122 is smaller than the size of the third segment 123. During the process of the pneumatic connector 20 passing obliquely from the second surface 142 of the back plate 14 through the mounting port 12 relative to the back plate 14 to the first surface 141 of the back plate 14, a first mating part 131 passes through the third segment 123, and a second mating part 132 passes through the first segment 121. The first mating part 131 is located on the side of the third segment 123 away from the second segment 122, and the first mating part 131 is spaced apart from the third segment 123. The second mating part 132 and the second segment 122 are arranged along the second direction. The second mating part 132 is located between the first segment 121 and the third segment 123, and the edge of the second mating part 132 contacts the edge of the second segment 122. Thus, in the 3D printer provided in this embodiment, after the pneumatic connector 20 obliquely passes through the mounting port 12 from the second surface 142 of the back plate 14, it is convenient for the first mounting part 211 of the pneumatic connector 20 to mate with the first mating part 131, and for the second mounting part 212 of the pneumatic connector 20 to mate with the second mating part 132.

[0035] Please see Figure 1 and Figures 8 to 12, Figure 12 This is a schematic diagram illustrating the assembly process between a pneumatic connector and a backplate according to an embodiment of this application.

[0036] Furthermore, in the first mating part 131 and the first mounting part 211, one includes a first protrusion 1310 and the other includes a first groove 2110. The first protrusion 1310 has the ability to elastically deform. When the pneumatic connector 20 obliquely passes through the mounting opening 12 from the second surface 142 of the back plate 14, the first mating part 131 and the first mounting part 211 are elastically engaged. In the second mating part 132 and the second mounting part 212, one includes a second protrusion 1320 and the other includes a second groove 2120. The second protrusion 1320 has the ability to elastically deform. When the pneumatic connector 20 obliquely passes through the mounting opening 12 from the second surface 142 of the back plate 14, the second mating part 132 and the second mounting part 212 are elastically engaged. Therefore, the 3D printer provided in this embodiment uses the first mounting part 211 and the first mating part 131 to be elastically engaged, and the second mounting part 212 and the second mating part 132 to be elastically engaged, so as to facilitate the assembly and disassembly between the first mounting part 211 and the first mating part 131 of the pneumatic connector 20, and to facilitate the installation and disassembly between the second mounting part 212 and the second mating part 132 of the pneumatic connector 20, thereby improving the installation and disassembly between the pneumatic connector 20 and the back plate 14 of the chassis 10.

[0037] In one implementation, please refer to Figure 1 and Figures 8 to 11The pneumatic connector 20 also includes a supporting portion 22, which is spaced apart from the first mounting portion 211 and spaced apart from the second mounting portion 212. When the pneumatic connector 20 is installed in the mounting port 12, the first mounting portion 211 and the second mounting portion 212 are located on one side of the first surface 141 of the back plate 14, so that the first mounting portion 211 can be connected with the first mating portion 131 and the second mounting portion 212 can be connected with the second mating portion 132. The supporting portion 22 is located on one side of the second surface 142 of the back plate 14, and the supporting portion 22 is arranged opposite to the mounting port 12 of the back plate 14 in a first direction. The supporting portion 22 can cover at least a portion of the second surface 142 of the back plate 14 so that the supporting portion 22 abuts against the second surface 142 of the back plate 14. Therefore, in this embodiment of the 3D printer, when the pneumatic connector 20 is installed in the mounting port 12 of the back plate 14, the abutment part 22 can abut against the second surface 142 of the back plate 14, thereby restricting the pneumatic connector 20 from moving further toward the interior of the chassis 10 after being installed in the mounting port 12. The first mounting part 211 is connected to the first mating part 131, and the second mounting part 212 is connected to the second mating part 132, thereby restricting the pneumatic connector 20 from moving further toward the exterior of the chassis 10 after being installed in the mounting port 12. When the pneumatic connector 20 is installed in the mounting port 12 of the back plate 14, without external force, the pneumatic connector 20 is fixedly engaged on the back plate 14 and will not move toward or away from the interior of the chassis 10, which helps to improve the stability of the pneumatic connector 20 installed in the mounting port 12 of the back plate 14.

[0038] Please see Figure 10 and Figure 12 In the 3D printer provided in this embodiment, the first mating part 131 includes a first protrusion 1310, which protrudes from the first surface 141 of the back plate 14. The first mounting part 211 includes a first body and a first groove 2110 disposed on the first body, with the first protrusion 1310 engaging with the first groove 2110. The first body is an elastic body, capable of deformation during the engagement of the first protrusion 1310 and the first groove 2110, facilitating the assembly and disassembly of the first protrusion 1310 and the first groove 2110. The second mating part 132 includes a second protrusion 1320, which protrudes from the first surface 141 of the back plate 14. The second mounting part 212 includes a second body and a second groove 2120 disposed on the second body, with the second protrusion 1320 engaging with the second groove 2120. The second body is an elastic body, which can deform during the engagement of the second protrusion 1320 and the second groove 2120 to facilitate the assembly and disassembly of the second protrusion 1320 and the second groove 2120. The engagement of the second protrusion 1320 and the second groove 2120 provides the user with a sense of proper positioning during the installation of the pneumatic connector 20.

[0039] It is understood that in some other embodiments, the first mating part 131 may include a first groove 2110, and the first mounting part 211 may include a first protrusion 1310; the second mating part 132 may include a second groove 2120, and the second mounting part 212 may include a second protrusion 1320. This application does not limit this.

[0040] Please see Figure 8 and Figures 10 to 12 In the 3D printer provided in this embodiment, the first mating part 131 includes a first protrusion 1310, the first mounting part 211 includes a first groove 2110, the second mating part 132 includes a second protrusion 1320, and the second mounting part 212 includes a second groove 2120. The size of the first groove 2110 gradually decreases from its opening to its bottom, that is, the opening of the first groove 2110 is wider than the bottom of the first groove 2110, and the first groove 2110 is an inverted trapezoid with an flared opening. The size of the first protrusion 1310 gradually decreases from its proximity to the first surface 141 to its distance from the first surface 141, that is, the portion of the first protrusion 1310 near the first surface 141 is wider than the portion of the first protrusion 1310 away from the first surface 141. The size of the second groove 2120 gradually decreases from its opening to its bottom, that is, the opening of the second groove 2120 is wider than the bottom of the second groove 2120, and the second groove 2120 is an inverted trapezoid with a flared opening. The second protrusion 1320 gradually decreases in size from near the first surface 141 to far away from the first surface 141, meaning the second protrusion 1320 is wider near the first surface 141 than it is far away from the first surface 141. Therefore, the 3D printer provided in this embodiment, by using the flared inverted trapezoidal shape of the first groove 2110, facilitates smoother assembly and disassembly between the first protrusion 1310 and the first groove 2110. Similarly, the flared inverted trapezoidal shape of the second groove 2120 further facilitates smoother assembly and disassembly between the second protrusion 1320 and the second groove 2120, which improves the smoothness of assembly and disassembly between the pneumatic connector 20 and the back plate 14, thus making it easier to assemble the pneumatic connector 20 and the back plate 14.

[0041] Specifically, please refer to Figure 8 and Figures 10 to 12The 3D printer provided in this embodiment includes a first groove 2110 comprising a first inner wall surface 2111 and a second inner wall surface 2112 disposed opposite to and spaced apart from each other. The first inner wall surface 2111 is located away from the second groove 2120 relative to the second inner wall surface 2112. The first groove 2110 extends along a first direction. Both the first inner wall surface 2111 and the second inner wall surface 2112 are inclined relative to the depth direction of the first groove 2110, and both the first inner wall and the second inner wall are inclined towards the outside of the first groove 2110 along the direction from the bottom to the opening of the first groove 2110. The first protrusion 1310 includes a first outer wall surface 1311 and a second outer wall surface 1312 disposed opposite to and spaced apart from each other. The first outer wall surface 1311 is located away from the second protrusion 1320 relative to the second outer wall surface 1312. The first protrusion 1310 extends along a first direction. The first outer wall surface 1311 and the second outer wall surface 1312 are both inclined relative to the height direction of the first protrusion 1310, and both the first outer wall surface 1311 and the second outer wall surface 1312 are inclined towards the center of the first protrusion 1310 in the direction from the first surface 141 to away from the first surface 141. When the pneumatic connector 20 is installed into the mounting port 12 of the back plate 14, the first inner wall surface 2111 abuts against the first outer wall surface 1311, and the second inner wall surface 2112 is opposite to and spaced apart from the second outer wall surface 1312. Therefore, the 3D printer provided in this embodiment, with the first inner wall surface 2111 and the second inner wall surface 2112 of the first groove 2110 inclined relative to the first direction, and the first outer wall surface 1311 and the second outer wall surface 1312 of the first protrusion 1310 inclined relative to the first direction, facilitates the engagement and connection between the first protrusion 1310 and the first groove 2110, and facilitates the removal of the first protrusion 1310 from the first groove 2110. When the first inner wall surface 2111 abuts against the first outer wall surface 1311, the second inner wall surface 2112 and the second outer wall surface 1312 are spaced apart along the second direction, so that when the pneumatic connector 20 is installed in the mounting port 12 of the back plate 14, a sense of engagement is formed.

[0042] Moreover, please see Figure 8 and Figures 10 to 12The 3D printer provided in this embodiment includes a second groove 2120 comprising a third inner wall surface 2121 and a fourth inner wall surface 2122 disposed opposite to and spaced apart from each other. The third inner wall surface 2121 is closer to the first groove 2110 relative to the fourth inner wall surface 2122. The second groove 2120 extends along a first direction, and the fourth inner wall surface 2122 is inclined relative to the depth direction of the second groove 2120, and the fourth wall surface is inclined towards the outside of the second groove 2120 along the direction from the bottom to the opening of the second groove 2120. The second protrusion 1320 includes a third outer wall surface 1321 and a fourth outer wall surface 1322 disposed opposite to and spaced apart from each other. The third outer wall surface 1321 is closer to the first protrusion 1310 relative to the fourth outer wall surface 1322. The second protrusion 1320 extends along the first direction, and the fourth outer wall surface 1322 is inclined relative to the extension height direction of the second protrusion 1320. The fourth wall surface is inclined towards the center of the second protrusion 1320 along the direction from the first surface 141 to away from the first surface 141. When the pneumatic connector 20 is installed into the mounting port 12 of the back plate 14, the third inner wall surface 2121 and the third outer wall surface 1321 are opposite to and spaced apart, and the fourth inner wall surface 2122 and the fourth outer wall surface 1322 abut against each other. Thus, the 3D printer provided in this embodiment, by having the fourth inner wall surface 2122 of the second groove 2120 inclined relative to the first direction and the fourth outer wall surface 1322 of the second protrusion 1320 inclined relative to the first direction, facilitates the engagement and connection of the second protrusion 1320 with the second groove 2120, and facilitates the removal of the second protrusion 1320 from the second groove 2120. When the first inner wall surface 2111 abuts against the first outer wall surface 1311, the second inner wall surface 2112 and the second outer wall surface 1312 are spaced apart along the second direction, and the fourth inner wall surface 2122 and the fourth outer wall surface 1322 abut against each other, so that the pneumatic connector 20 is installed in the mounting port 12 of the back plate 14 to form a sense of engagement. At the same time, as the second outer wall surface 1312 moves toward the second inner wall surface 2112, the fourth outer wall surface 1322 gradually disengages from the fourth inner wall surface 2122, making it easier to disengage the second protrusion 1320 from the second groove 2120.

[0043] For more details, please refer to Figure 8 and Figures 10 to 12In the 3D printer provided in this embodiment, the vertical distance L between the portion of the fourth inner wall surface 2122 of the second groove 2120 that abuts against the portion of the fourth outer wall surface 1322 of the second protrusion 1320 is [0.49, 0.61] mm, that is, the width L along the first direction of the portion of the portion of the second groove 2120 that abuts against the portion of the second protrusion 1320 is [0.49, 0.61] mm. Therefore, by limiting the width along the first direction of the portion of the second groove 2120 that abuts against the portion of the second protrusion 1320, the risk of the second protrusion 1320 slipping out of the second groove 2120 can be reduced, thereby improving the stability of the engagement between the second protrusion 1320 and the second groove 2120.

[0044] In this embodiment, the width L along the first direction of the portion where the fourth inner wall surface 2122 of the second groove 2120 abuts against the fourth outer wall surface 1322 of the second protrusion 1320 is preferably 0.5 mm. In other embodiments, the width L along the first direction of the portion where the fourth inner wall surface 2122 of the second groove 2120 abuts against the fourth outer wall surface 1322 of the second protrusion 1320 is 0.49 mm, 0.52 mm, 0.57 mm, etc.

[0045] In one implementation, please refer to Figures 1 to 4 The 3D printer also includes functional components 31, which are installed inside the chassis 10 and located around the mounting port 12. Functional components 31 include at least one of a synchronous belt motor 31a, a filter fan, a heating fan, a cooling fan, and an electronics compartment 31b. Thus, the 3D printer provided in this embodiment, by incorporating functional components 31 such as a synchronous belt motor 31a, a filter fan, a heating fan, a cooling fan, and an electronics compartment 31b, with the electronics compartment 31b housing the electronic circuitry or power supply circuitry required for the 3D printer's operation, allows the functional components 31 to be fixed within the 3D printer. Through the aforementioned mounting structure design between the pneumatic connector 20 and the backplate 14, the pneumatic connector 20 can be installed and removed from the chassis 10 from the outside, avoiding the influence of the functional components 31 around the mounting port 12 inside the chassis 10 on installation and removal. This improves the ease of installation and removal between the pneumatic connector 20 and the backplate 14, facilitating the maintenance of the pneumatic connector 20.

[0046] In one implementation, please refer to Figure 1 and Figure 3 The 3D printer's chassis 10 is equipped with a handle 15 to facilitate the movement of the chassis 10 and the entire 3D printer, making the 3D printer's workplace more flexible.

[0047] Specifically, the handle 15 is located on the outer wall of the end of the chassis 10 away from the mounting opening 12, that is, on the outer wall of the bottom of the chassis 10. The handle 15 is recessed towards the inside of the chassis 10, and the recessed handle 15 penetrates the bottom wall and the peripheral side walls of the chassis 10. By placing the handle 15 at the bottom of the chassis 10, the 3D printer is more stable during handling, and the handle 15 is not easily visible, resulting in a better appearance for the 3D printer. Moreover, the recessed handle 15 towards the inside of the chassis 10 helps to reduce the circumferential dimensions of the chassis 10 and the overall structure of the 3D printer.

[0048] It is understood that in some other embodiments, the wrench position may be a structure protruding from the outer surface of the chassis 10 or other structures, and this application does not limit this.

[0049] In one implementation, please refer to Figures 1 to 4 The 3D printer also includes a light strip assembly 32, which is arranged around the inner wall of the chassis 10. The light strip assembly 32 is used to illuminate the interior of the chassis 10. By arranging the light strip assembly 32 around the inner wall of the chassis 10, the brightness inside the chassis 10 is improved, making it easier to observe the processing inside the chassis 10.

[0050] Specifically, the inner wall of the chassis 10 includes a first wall surface 111, a second wall surface 112, and a third wall surface 113. The second wall surface 112 connects the first wall surface 111 and the third wall surface 113. The first wall surface 111 and the third wall surface 113 are opposite to each other and spaced apart. The second wall surface 112 is the first surface 141 of the back panel 14 of the chassis 10. The light strip assembly 32 includes a first light strip 321, a second light strip 322, and a third light strip 323. The first light strip 321 is disposed on the first wall surface 111, the second light strip 322 is disposed on the second wall surface 112, and the third light strip 323 is disposed on the third wall surface 113. By distributing the three light strips on the three inner walls of the chassis 10, the brightness inside the chassis 10 is further improved, thus facilitating observation of the internal processing conditions.

[0051] It is understood that in some other implementations, the number of light strips can be one, two, or four, and this application does not limit this.

[0052] In one implementation, please refer to Figures 1 to 4The 3D printer also includes a display screen 33, a rotating component 34, and a storage disk 35. The rotating component 34 is rotatably connected to the housing 10 and the display screen 33. The rotating component 34 has a connector 341, into which the storage disk 35 is inserted. The display screen 33 completely covers the rotating component 34 in the rotation direction perpendicular to the rotating component, and at least a portion of the storage disk 35 is covered by the display screen 33 in the rotation direction perpendicular to the rotating component 34. By positioning the storage disk 35 on the rotating component 34, and ensuring that at least a portion of the storage disk 35 is covered by the display screen 33 in the rotation direction of the rotating component 34, the possibility of the storage disk 35 being accidentally knocked off can be reduced.

[0053] Specifically, the connector 341 is configured such that the storage disk 35 is inserted along a direction parallel to the outer wall of the chassis 10; in other words, the connector 341 is configured such that the storage disk 35 is inserted along a direction parallel to the rotation axis of the rotating member 34. Thus, unlike the insertion direction of the storage disk 35 which is perpendicular to the outer wall of the chassis 10, this application can reduce the height of the storage disk 35 protruding from the outer wall of the chassis 10, thereby reducing the probability of the storage disk 35 being accidentally knocked off.

[0054] The above are some embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. A 3D printer, characterized in that, The 3D printer is used to connect to the feeding device; the 3D printer includes: The chassis has a mounting port; the inner side wall of the chassis is provided with a mating part; A pneumatic connector is configured to be detachably installed from the outside of the chassis into the mounting port of the chassis; one end of the pneumatic connector protruding from the outside of the chassis is connected to the feeding device, and the end of the pneumatic connector located inside the chassis includes a mounting portion, which is detachably connected to the mating portion.

2. The 3D printer as described in claim 1, characterized in that, The chassis includes a back panel, the back panel including a first surface and a second surface disposed opposite to each other, the first surface facing the interior of the chassis, and the second surface facing away from the interior of the chassis; The mounting port extends through the first surface and the second surface, and the pneumatic connector is configured to be mounted at an angle relative to the first surface in the mounting port; The mating part includes a first mating part and a second mating part, which are disposed at intervals on the first surface and located around the mounting opening; The mounting portion includes a first mounting portion and a second mounting portion, which are disposed on opposite sides of the pneumatic connector in the circumferential direction; the first mounting portion and the first mating portion are detachably connected, and the second mounting portion and the second mating portion are detachably connected.

3. The 3D printer as described in claim 2, characterized in that, In the first mating part and the first mounting part, one includes a first protrusion and the other includes a first groove, and the first mating part and the first mounting part are elastically engaged; In the second mating part and the second mounting part, one includes a second protrusion and the other includes a second groove, and the second mating part and the second mounting part are elastically engaged.

4. The 3D printer as described in claim 3, characterized in that, The pneumatic connector further includes a supporting portion that abuts against the second surface.

5. The 3D printer as described in claim 3, characterized in that, The first mating part includes the first protrusion, the first mounting part includes the first groove, and the first protrusion engages with the first groove; The second mating part includes the second protrusion, and the second mounting part includes the second groove, wherein the second protrusion engages with the second groove.

6. The 3D printer as described in claim 5, characterized in that, The size of the first groove gradually decreases from the opening to the bottom, and the size of the first protrusion gradually decreases from near the first surface to far away from the first surface. The second groove gradually decreases in size from the opening to the bottom, and the second protrusion gradually decreases in size from near the first surface to far away from the first surface.

7. The 3D printer as described in claim 6, characterized in that, The first groove includes a first inner wall surface and a second inner wall surface that are opposite to and spaced apart. Both the first inner wall surface and the second inner wall surface are inclined relative to the depth direction of the first groove. The first inner wall surface is farther away from the second groove relative to the second inner wall surface. The first protrusion includes a first outer wall surface and a second outer wall surface that are opposite to and spaced apart. Both the first outer wall surface and the second outer wall surface are inclined relative to the height direction of the first protrusion. The first outer wall surface is farther away from the second protrusion relative to the second outer wall surface. The first inner wall surface abuts against the first outer wall surface, and the second inner wall surface is opposite to and spaced apart from the second outer wall surface.

8. The 3D printer as described in claim 7, characterized in that, The second groove includes a third inner wall surface and a fourth inner wall surface that are opposite to and spaced apart. The fourth inner wall surface is inclined relative to the depth direction of the second groove, and the third inner wall surface is closer to the first groove relative to the fourth inner wall surface. The second protrusion includes a third outer wall surface and a fourth outer wall surface that are opposite to and spaced apart. The fourth outer wall surface is inclined relative to the height direction of the second protrusion, and the third outer wall surface is closer to the first protrusion relative to the fourth outer wall surface. The third inner wall surface is opposite to and spaced apart from the third outer wall surface, and the fourth inner wall surface abuts against the fourth outer wall surface.

9. The three-dimensional printer as described in claim 8, characterized in that, The vertical distance between the portion of the fourth inner wall surface that abuts against the fourth outer wall surface is [0.49, 0.61] mm.

10. The 3D printer as described in claim 1, characterized in that, The 3D printer also includes functional components installed inside the chassis and around the mounting port. The functional components include at least one of a synchronous belt motor, a filter fan, a heating fan, a cooling fan, and an electronics compartment.

11. The three-dimensional printer as described in claim 1, characterized in that, The chassis also has a handle.

12. The three-dimensional printer as described in claim 11, characterized in that, The handle is located on the outer wall of the chassis at the end away from the mounting opening, and the handle is recessed towards the interior of the chassis.

13. The three-dimensional printer as described in claim 1, characterized in that, The 3D printer also includes a light strip assembly, which is arranged around the inner side wall of the chassis and is used to illuminate the interior of the chassis.

14. The three-dimensional printer as described in claim 13, characterized in that, The inner wall of the chassis includes a first wall surface, a second wall surface, and a third wall surface. The second wall surface is connected between the first wall surface and the third wall surface. The first wall surface and the third wall surface are opposite to each other and spaced apart. The light strip assembly includes a first light strip, a second light strip, and a third light strip. The first light strip is disposed on the first wall surface, the second light strip is disposed on the second wall surface, and the third light strip is disposed on the third wall surface.

15. The three-dimensional printer as described in claim 1, characterized in that, The 3D printer also includes a display screen, a rotating component, and a storage disk. The rotating component is rotatably connected to the chassis and the display screen. The rotating component has an interface, and the storage disk is inserted into the interface.

16. The three-dimensional printer as described in claim 15, characterized in that, The interface is configured so that the storage disk is inserted in a direction parallel to the outer side wall of the chassis.

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