A camera module and a 3D printing system

Abstract

The application discloses a camera module and a 3D printing system. The camera module comprises a shell, a camera mechanism and a cutting mechanism. The camera mechanism comprises a light supplement lamp assembly and a lens assembly accommodated in the shell. The light supplement lamp assembly and the lens assembly are respectively installed in the shell through buckling. The cutting mechanism is externally arranged on the shell. The cutting mechanism comprises a material pipe adapter of the shell and a cutter impact rod. The material pipe adapter is configured to adapt the material pipe. The cutter impact rod is arranged close to the material pipe adapter. The material pipe adapter is rotationally connected to the shell. The cutter impact rod is fixedly connected to the shell. The camera module integrates the camera mechanism and the cutting mechanism, which can improve the integration of the whole equipment, the utilization rate of the equipment space and the installation efficiency, and ensures smooth transmission of the material filament.

Description

Technical Field

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

[0002] The 3D printer includes a camera module and a cutting module. The camera module is configured to monitor the printing quality of the model and the feeding status of the filament in real time, and to acquire image data of the printing platform. The cutting module is configured to cut the filament. In use, the visual monitoring of the camera module provides a basis for judgment or execution signals for the actions of the cutting module, improving the automation and reliability of the 3D printing process. However, in the prior art, the camera module and the cutting module are separately and dispersedly set on the frame structure of the 3D printer, resulting in low overall integration, low space utilization, and low installation efficiency. At the same time, the existing 3D printing system suffers from uneven filament feeding during feeding and unloading operations, affecting print quality. Utility Model Content

[0003] The purpose of this application is to solve the above problems and provide a camera module and a 3D printing system. The camera module integrates a camera mechanism and a cutting mechanism, which can improve the overall integration of the equipment, the utilization rate of equipment space, and the installation efficiency. At the same time, the 3D printing system provided can smoothly transmit filament, ensure the smooth feeding and unloading of material during the printing process, and thus ensure the printing quality.

[0004] To solve the above-mentioned technical problems, the technical solution adopted in this application is as follows:

[0005] In a first aspect, this application provides a camera module, which includes:

[0006] case;

[0007] A camera mechanism, comprising a fill light assembly and a lens assembly housed within the housing, wherein the fill light assembly and the lens assembly are respectively mounted within the housing via snap-fit ​​fasteners;

[0008] A cutting mechanism is externally disposed on the housing. The cutting mechanism includes a material tube adapter and a cutting rod on the housing. The material tube adapter is configured to connect to the material tube. The cutting rod is disposed close to the material tube adapter. The material tube adapter is rotatably connected to the housing. The cutting rod is fixedly connected to the housing.

[0009] Optionally, the feed tube adapter includes a tube body, a rotating rod vertically disposed on the tube body, a limiting pin disposed at one end of the rotating rod away from the tube body, and pneumatic connectors disposed at both ends of the tube body; the housing is provided with a first limiting groove recessed into the housing, the rotating rod is partially inserted into the first limiting groove, and the rotating rod is rotatably connected to the first limiting groove through the limiting pin.

[0010] Optionally, the rotating rod includes a rotating rod body and a protrusion on the rotating rod body. The rotating rod body is inserted into the first limiting groove, and the protrusion passes through the bottom of the first limiting groove. The bottom of the first limiting groove has a first mounting hole for the protrusion to pass through. The limiting pin is T-shaped and includes a first part and a second part that are perpendicular to each other. The first part is connected to the protrusion, and the second part is located inside the housing. The outer diameter of the second part is larger than the diameter of the first mounting hole.

[0011] Optionally, a limiting component is provided between the rotating rod and the bottom of the first limiting groove; the limiting component includes a limiting protrusion on the platform formed by the rotating rod body and the protrusion, and a second limiting groove on the bottom of the first limiting groove, wherein the limiting protrusion is slidably connected to the second limiting groove.

[0012] Optionally, the housing includes a first housing and a second housing connected to each other by a snap-fit ​​assembly; the lens assembly is fixed to the first housing by the snap-fit, and the feed tube adapter is disposed on the outer wall of the first housing; the snap-fit ​​assembly includes a snap-fit ​​and a locking block that engages with the snap-fit, wherein one of the first housing and the second housing is provided with the snap-fit, and the other is provided with the locking block.

[0013] Optionally, the fill light assembly includes a filter and a fill light PCBA. The filter is disposed between the fill light PCBA and the second housing and is attached to the fill light PCBA. The second housing has a second mounting hole for mounting the filter. The clip is engaged with the edge area of ​​the fill light PCBA. The middle area of ​​the filter is located in the second mounting hole and the edge area contacts the inner wall of the second housing.

[0014] Optionally, the lens assembly includes a lens, a camera PCBA connected to the lens on the side away from the inner wall of the second housing, and a cover plate slidably connected to the second housing. The second housing has a third mounting hole for mounting the lens. The buckle is engaged with the edge area of ​​the camera PCBA, and the cover plate is configured to move on the second housing to cover or expose the lens.

[0015] Optionally, the outer wall of the second housing is provided with an inwardly recessed third limiting groove, the third mounting hole is provided at the bottom of the third limiting groove, and the cover plate is slidably connected in the third limiting groove; the inner side of the cover plate is provided with a second buckle, and the bottom of the third limiting groove is provided with a sliding groove that cooperates with the second buckle, and the second buckle is engaged in the sliding groove.

[0016] Optionally, the cutting impact rod is integrally formed on the housing, and a reinforcing rib is provided between the cutting impact rod and the housing.

[0017] Secondly, this application provides a 3D printing system, including a 3D printer and a material supply hopper configured to supply material to the 3D printer; the 3D printing system further includes a feed tube adapter rotatably connected to the 3D printer; the 3D printer includes a print head, one end of the feed tube adapter is connected to the material supply hopper via a feed tube, and the other end is connected to the print head via a feed tube. Optionally, the 3D printer includes a camera module as described above;

[0018] Optionally, the rotatable angle range of the feed tube adapter is 25°-85°, where the angle is the angle between the feed tube adapter and the horizontal plane.

[0019] The beneficial effects of this application include at least the following:

[0020] The camera module provided in this application includes a camera mechanism housed within the housing and a cutting mechanism externally mounted on the housing. Integrating the camera mechanism and the cutting mechanism onto the camera module reduces the number of components in the 3D printer, improves the integration of the equipment, increases the utilization of equipment space, and enhances installation efficiency. Furthermore, the fill light assembly and the lens assembly are respectively mounted on the inner wall of the housing via clips, enabling quick assembly and disassembly of the fill light assembly and lens assembly, facilitating assembly and disassembly, and improving production efficiency. The feed tube adapter positions the feed tube, preventing feed tube wobbling during operation from affecting print quality or cutting action. The feed tube adapter is rotatably connected to the housing, rotating at different angles under different forces to adaptively adjust the angle for different Z-axis heights of the 3D printer, preventing excessive bending angles during feed tube delivery that could cause feeding difficulties, and ensuring smooth filament transmission and feeding / retraction during the printing process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the camera module of this application from a first angle.

[0022] Figure 2 This is a schematic diagram of the overall structure of the camera module of this application from a second angle.

[0023] Figure 3 This is a schematic diagram of the overall structure of the camera module from the third angle of this application.

[0024] Figure 4 for Figure 3 The schematic diagram shown is a cross-sectional view along AA.

[0025] Figure 5 This is a schematic diagram of the overall structure of the camera module from the fourth angle of this application.

[0026] Figure 6 for Figure 5 The schematic diagram shown is a cross-sectional view along BB.

[0027] Figure 7 This is an assembly diagram of the camera mechanism of this application.

[0028] Figure 8 This is a schematic diagram of the material tube adapter of this application.

[0029] Figure 9 This is a schematic diagram of the structure of the first shell of this application.

[0030] Figure 10 This is a structural schematic diagram of the second housing of this application at a first angle.

[0031] Figure 11 This is a structural schematic diagram of the second angle of the second housing in this application.

[0032] Figure 12 This is a schematic diagram of the material tube adapter of this application at the minimum rotation angle.

[0033] Figure 13 This is a schematic diagram of the material tube adapter of this application at its maximum rotation angle.

[0034] Among them, 1-housing, 11-first limiting groove, 12-first mounting hole, 13-snap assembly, 132-snap block, 14-second mounting hole, 15-third mounting hole, 16-first housing, 17-second housing, 18-third limiting groove, 19-sliding groove, 2-camera mechanism, 21-fill light assembly, 211-filter, 212-fill light PCBA, 22-lens assembly, 221-lens, 222-camera PCBA 223-Cover plate, 224-Second buckle, 23-Buckling, 3-Cutting mechanism, 31-Pipe adapter, 311-Pipe body, 312-Rotating rod, 3121-Rotating rod body, 3122-Protrusion, 313-Limiting pin, 3131-First part, 3132-Second part, 314-Pneumatic connector, 32-Cutter impact rod, 321-Reinforcing rib, 33-Limiting assembly, 331-Limiting protrusion, 332-Second limiting groove. Detailed Implementation

[0035] 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.

[0036] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0037] 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.

[0038] Example 1:

[0039] This application provides a camera module, see [link]. Figures 1 to 7 As shown, the camera module includes:

[0040] Casing 1;

[0041] Camera assembly 2 is configured to monitor printing status and consumable delivery status; camera assembly 2 includes a fill light assembly 21 and a lens assembly 22 housed within the housing 1, the fill light assembly 21 and the lens assembly 22 being respectively mounted within the housing 1 via clips 23; the fill light assembly 21 provides light compensation to the lens assembly 22, improving the quality of the captured image by the lens assembly 22;

[0042] A cutting mechanism 3 is configured to cut consumables. The cutting mechanism 3 is externally disposed on the housing 1. The cutting mechanism 3 includes a material tube adapter 31 and a cutting rod 32 disposed on the housing 1. The material tube adapter 31 is configured to connect the material tube. In use, the material tube is at least partially inserted into the consumable adapter. The cutting rod 32 is disposed close to the material tube adapter 31. The material tube adapter 31 is rotatably connected to the housing 1, and the cutting rod 32 is fixedly connected to the housing 1.

[0043] The camera module provided in this application includes a camera mechanism 2 housed within the housing 1 and a cutting mechanism 3 externally mounted on the housing 1. Integrating the camera mechanism 2 and the cutting mechanism 3 onto the camera module reduces the number of components in the 3D printer, improves the integration of the equipment, increases the utilization of equipment space, and improves installation efficiency. In addition, the fill light assembly 21 and the lens assembly 22 are respectively mounted on the inner wall of the housing 1 via the clips 23, enabling quick assembly and disassembly of the fill light assembly and the lens assembly 22, facilitating assembly and disassembly, and improving production efficiency. The feed tube adapter 31 positions the feed tube, preventing the feed tube from shaking during operation and affecting the printing quality or cutting action. The feed tube adapter 31 is rotatably connected to the housing 1 and rotates at different angles under different forces to adaptively adjust the angle for different Z-axis heights of the 3D printer, avoiding excessive bending angles during feed tube delivery that could lead to uneven feeding.

[0044] It is understood that the camera mechanism 2 and the cutting mechanism 3 are arranged to avoid interference between the components within the space of the housing 1 during installation. The material tube is a Teflon delivery tube. The cutting mechanism 3 also includes a cutter, and the cutter impact rod 32 cooperates with the cutter to cut the consumable; wherein, the cutter can be mounted on the 3D printer frame structure or on the print head.

[0045] Optional, see Figure 8 As shown, the material tube adapter 31 includes a tube body 311, a rotating rod 312 vertically disposed on the tube body 311, a limiting pin 313 disposed at one end of the rotating rod 312 away from the tube body 311, and pneumatic connectors 314 respectively disposed at both ends of the tube body 311; the housing 1 is provided with an inwardly recessed first limiting groove 11, the rotating rod 312 is partially inserted into the first limiting groove 11, and the rotating rod 312 is rotatably connected to the first limiting groove 11 through the limiting pin 313.

[0046] In use, the material tube is placed inside the tube body 311 and fixed by the pneumatic connector 314. The rotating rod 312 is rotatably mounted in the first limiting groove 11 via the limiting pin 313. When the tube body 311 rotates under the drive of the material tube, it drives the rotating rod 312 to rotate. The limiting pin 313 connects the rotating rod 312 to the housing 1, preventing the rotating rod 312 from detaching from the housing 1. This allows the material tube adapter 31 to adaptively adjust its rotation angle according to the state of the connected material tube, avoiding defects such as bending of the material tube or poor material conveying due to different states of the material tube during operation. The first limiting groove 11 guides the end of the rotating rod 312, ensuring the stability of the rotation of the rotating rod 312, preventing deflection during rotation, and improving the stability of the rotation of the rotating rod 312, thereby improving the stability of the rotation of the material tube adapter 31.

[0047] Specifically, in some embodiments, the rotating rod 312 includes a rotating rod body 3121 and a protrusion 3122 disposed on the rotating rod body 3121. The rotating rod body 3121 is partially inserted into the first limiting groove 11, and the protrusion 3122 passes through the bottom of the first limiting groove 11. The bottom of the first limiting groove 11 has a first mounting hole 12 for the protrusion 3122 to pass through. The limiting pin 313 is generally T-shaped, including a first part 3131 and a second part 3132 arranged perpendicularly to each other. The first part 3131 is connected to the protrusion 3122, and the second part 3132 is disposed inside the housing 1. The outer diameter of the second part 3132 is larger than the diameter of the first mounting hole 12.

[0048] In use, the tube body 311 rotates, causing the rotating rod body 3121 to rotate within the first limiting groove 11, and causing the protrusion 3122 to rotate within the first mounting hole 12. The limiting pin 313 movably connects the rotating rod 312 to the housing 1, preventing the material tube adapter 31 from rotating away from the housing 1. In this embodiment, the material tube adapter 31 can be used not only in the camera module described in this application, but also in the feeding box or filament management device of a 3D printer, to adapt to the state of the Teflon tube conveying the filament, prevent excessive bending of the Teflon tube during material feeding, and ensure smooth feeding; as long as it can perform the same function as the material tube adapter 31 described in this application, it is acceptable.

[0049] Furthermore, in some other embodiments, a transmission bearing is provided between the rotating rod body 3121 and the first limiting groove 11. The transmission bearing can be installed on the rotating rod body 3121, and the outer ring of the transmission bearing is connected to the inner wall of the first limiting groove. The transmission bearing is provided to improve the smoothness of the rotation of the rotating rod 312 and prevent the rotating rod 312 from getting stuck in the first limiting groove 11.

[0050] Further, see Figure 4 , Figure 5 , Figure 8 and Figure 9 As shown, a limiting component 33 is provided between the rotating rod 312 and the bottom of the first limiting groove 11. The limiting component 33 includes a limiting protrusion 331 on the platform formed by the rotating rod body 3121 and the protrusion 3122, and a second limiting groove 332 on the bottom of the first limiting groove 11. The limiting protrusion 331 is slidably connected to the second limiting groove 332. The limiting component 33 limits the rotation angle of the rotating rod 312, preventing the material tube adapter 31 from bending or jamming due to excessive rotation angle. In some embodiments, the second limiting groove 332 is an arc-shaped groove, and the relative central angle of the second limiting groove 332 is 25°-85°. The setting of the second limiting groove 332 allows the rotation angle of the rotating rod 312 to be between 25°-85°, thereby allowing the material tube adapter 31 to rotate within the angle range of 25°-85°. The schematic diagram of the state of the material tube adapter 31 when it rotates to the two extreme positions is shown in the figure. Figure 12 and Figure 13 As shown. The platform is an annular platform, and the limiting protrusions 331 are distributed along the circumference of the platform; for example, the number of limiting protrusions 331 can be two, and the corresponding number of second limiting grooves 332 can be two. The limiting protrusions 331 are symmetrically arranged on the platform, and the second limiting grooves 332 are symmetrically arranged along the bottom of the first limiting groove 11. The symmetrical structure improves the stability of the rotation of the rotating rod 312.

[0051] Optionally, in some embodiments, the rotating rod 312 includes a first rotating rod and a second rotating rod sleeved outside the first rotating rod. A portion of the first rotating rod away from the tube body 311 protrudes from the second rotating rod to form the protrusion 3122. The second rotating rod serves as the rotating rod body 3121, and its end forms the platform. The limiting protrusion 331 is disposed at the end of the second rotating rod. The limiting pin 313 is mounted on the first rotating rod, and the first and second rotating rods are coaxially arranged. In use, in other embodiments, the first rotating rod passes through the first mounting hole 12, the second rotating rod is inserted into the first limiting groove 11, and the limiting protrusion 331 is inserted into the second limiting groove 332. The rotating rod 312 adopts a sleeve structure between the first and second rotating rods, so that the limiting protrusion 331 can be integrally formed on the second rotating rod, ensuring the stability of the connection between the limiting protrusion 331 and the second rotating rod, and ensuring the structural stability of the material tube adapter 31.

[0052] See Figure 9 and Figure 11 As shown, the housing 1 includes a first housing 16 and a second housing 17 connected to each other via a snap-fit ​​assembly 13; the lens assembly 22 is fixed to the first housing 16 via snap-fit ​​23, and the feed tube adapter 31 is disposed on the outer wall of the first housing 16; the snap-fit ​​assembly 13 includes a snap-fit ​​23 and a locking block 132 that engages with the snap-fit ​​23, wherein one of the first housing 16 and the second housing 17 is provided with the snap-fit ​​23, and the other is provided with the locking block 132. The first housing 16 and the second housing 17 are connected by the snap-fit ​​assembly 13, ensuring a firm connection between the first housing 16 and the second housing 17 while ensuring that the housing 1 can be quickly assembled and disassembled, improving assembly efficiency. It is understood that the snap-fit ​​23 for installing the fill light assembly 21 and the snap-fit ​​23 for installing the lens assembly 22 in this application can be adjusted according to the specific structure of the fill light assembly 21 and the lens assembly 22.

[0053] See Figure 7 As shown, the supplementary lighting assembly 21 includes a filter 211 and a supplementary lighting PCBA 212. The filter 211 is disposed between the supplementary lighting PCBA 212 and the second housing 17, and the filter 211 is attached to the supplementary lighting PCBA 212. (See Figure 17) Figure 10As shown, the second housing 17 has a second mounting hole 14 for mounting the filter 211; the buckle 23 is engaged with the edge area of ​​the supplementary light PCBA 212, and the middle area of ​​the filter 211 is located within the second mounting hole 14, with its edge area contacting the inner wall of the second housing 17. Here, PCBA stands for Printed Circuit Board Assembly, referring to an assembled circuit board. In use, the edge area of ​​the filter 211 is bonded to the supplementary light PCBA 212, achieving mutual fixation between the filter 211 and the supplementary light PCBA 212. This stable structure avoids unnecessary structural space, further reduces the volume of the camera module, and lowers the overall space occupancy of the camera module on the 3D printer. Furthermore, the latch 23 applies force to the edge area of ​​the supplementary light PCBA 212. The supplementary light PCBA 212 and the second housing 17 jointly exert force on the filter 211, ensuring a tight and fixed connection between the supplementary light PCBA 212 and the filter 211. Even if the bonding structure between the filter 211 and the supplementary light PCBA 212 fails during long-term use, the installation remains stable, extending the service life.

[0054] See Figure 7 As shown, the lens assembly 22 includes a lens 221, a camera PCBA 222 connected to the lens 221 on the side away from the inner wall of the second housing 17, and a cover plate 223 slidably connected to the second housing 17. (See also...) Figure 10 As shown, the second housing 17 has a third mounting hole 15 for mounting the lens 221; the buckle 23 is engaged with the edge area of ​​the camera PCBA 222 to fix the lens assembly 22; the cover plate 223 is configured to move on the second housing 17 to cover or expose the lens 221.

[0055] See Figure 10 and Figure 11As shown, the outer wall of the second housing 17 is provided with an inwardly recessed third limiting groove 18, and the third mounting hole 15 is provided at the bottom of the third limiting groove 18. The cover plate 223 is slidably connected within the third limiting groove 18. The inner side of the cover plate 223 is provided with a second buckle 224, and the bottom of the third limiting groove 18 is provided with a sliding groove 19 that cooperates with the second buckle 224. The second buckle 224 is engaged within the sliding groove 19. The second buckle 224 engages within the sliding groove 19, which serves two purposes: firstly, the sliding groove 19 guides the movement of the cover plate 223; secondly, the interaction between the second buckle 224 and the sliding groove 19 provides pre-tightening force, consistent force distribution, and ensures the stability of the cover plate 223's movement. In some embodiments, the third mounting hole 15 and the sliding groove 19 are interconnected for easy molding and processing.

[0056] The cutting impact rod 32 is integrally formed on the housing 1, and a reinforcing rib 321 is provided between the cutting impact rod 32 and the housing 1; specifically, the cutting impact rod 32 can be integrally formed on the second housing 17. The integral forming of the cutting impact rod 32 and the housing 1 saves assembly time and cost, and the setting of the reinforcing rib 321 improves the connection strength between the cutting impact rod 32 and the housing 17, ensuring the force requirements of the cutting mechanism 3 during the cutting operation.

[0057] Furthermore, in some other embodiments, the first housing 16 is provided with limiting posts for connecting to the fill light PCBA 212 and the camera PCBA 222 respectively, the limiting posts passing through the fill light PCBA 212 and the camera PCBA 222 respectively. Correspondingly, the fill light PCBA 212 and the camera PCBA 222 are respectively provided with through holes through which the limiting posts pass.

[0058] The supplementary lighting assembly 21 includes a lamp board interface disposed on the supplementary lighting PCBA 212. The lamp board interface is externally disposed on the housing 1, and the housing 1 has a fourth limiting groove for mounting the lamp board interface. The fourth limiting groove is provided so that the lamp board interface is embedded in the housing 1, avoiding structural damage caused by collision due to the lamp board interface protruding from the housing 1.

[0059] Example 2:

[0060] This application provides a 3D printing system, which includes a 3D printer and a material supply cassette configured to supply material to the 3D printer. The 3D printing system also includes a feed tube adapter rotatably connected to the 3D printer. The 3D printer includes a print head and a camera module as described above. One end of the feed tube adapter is connected to the material supply cassette via a feed tube, and the other end is connected to the print head via a feed tube. The structure of the feed tube adapter is the same as that of the feed tube adapter 31 described above. Correspondingly, when the feed tube adapter 31 is installed on the 3D printer, a limiting component 33 as described above is provided on the 3D printer. The feed tube adapter 31 can be located at any connection point of the feed tube in the 3D printing system. The print head is equipped with the camera module as described above. The feed tube, located between the print head and the feed tube adapter, has one end connected to the feed tube adapter and the other end connected to the camera module. The feed tube is used to convey consumable filaments, and the feed tube includes a Teflon tube. The feed tube adapter also includes the tube body 311 and the rotating rod 312 perpendicularly disposed on the tube body 311. The rotation angle of the feed tube adapter refers to the range of angles by which the tube body 311 rotates around the rotating rod 312. Specifically, in conjunction with... Figure 12 and Figure 13 The rotation angle is explained as follows: when the rotating rod 312 is set along the horizontal direction x, the rotation angle α is the angle between the central axis of the tube body 311 and the horizontal plane when the tube body 311 rotates around the rotating rod 312. Figure 12 This is a schematic diagram showing the state of the feed tube adapter when it is at its minimum rotation angle. Figure 13 This is a schematic diagram showing the state of the material tube fitting at its maximum rotation angle.

[0061] 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.

[0062] 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 camera module, characterized in that, include: case; A camera mechanism, comprising a fill light assembly and a lens assembly housed within the housing, wherein the fill light assembly and the lens assembly are respectively mounted within the housing via snap-fit ​​fasteners; A cutting mechanism is externally disposed on the housing. The cutting mechanism includes a material tube adapter and a cutting rod. The material tube adapter is configured to connect to the material tube. The cutting rod is disposed close to the material tube adapter. The material tube adapter is rotatably connected to the housing. The cutting rod is fixedly connected to the housing.

2. The camera module according to claim 1, characterized in that, The feed tube adapter includes a tube body, a rotating rod vertically disposed on the tube body, a limiting pin disposed at one end of the rotating rod away from the tube body, and pneumatic connectors disposed at both ends of the tube body; the housing is provided with an inwardly recessed first limiting groove, the rotating rod is partially inserted into the first limiting groove, and the rotating rod is rotatably connected to the first limiting groove through the limiting pin.

3. The camera module according to claim 2, characterized in that, The rotating rod includes a rotating rod body and a protrusion on the rotating rod body. The rotating rod body is inserted into the first limiting groove, and the protrusion passes through the bottom of the first limiting groove. The bottom of the first limiting groove has a first mounting hole for the protrusion to pass through. The limiting pin is T-shaped and includes a first part and a second part that are perpendicular to each other. The first part is connected to the protrusion, and the second part is located inside the housing. The outer diameter of the second part is larger than the diameter of the first mounting hole.

4. The camera module according to claim 3, characterized in that, A limiting component is provided between the rotating rod and the bottom of the first limiting groove; the limiting component includes a limiting protrusion on the platform formed by the rotating rod body and the protrusion, and a second limiting groove on the bottom of the first limiting groove, wherein the limiting protrusion is slidably connected to the second limiting groove.

5. The camera module according to claim 1, characterized in that, The housing includes a first housing and a second housing connected to each other by a snap-fit ​​assembly; the lens assembly is fixed to the first housing by the snap-fit ​​assembly, and the feed tube adapter is located on the outer wall of the first housing; the snap-fit ​​assembly includes a snap-fit ​​and a locking block that engages with the snap-fit, and one of the first housing and the second housing is provided with the snap-fit, while the other is provided with the locking block.

6. The camera module according to claim 5, characterized in that, The fill light assembly includes a filter and a fill light PCBA. The filter is disposed between the fill light PCBA and the second housing and is attached to the fill light PCBA. The second housing has a second mounting hole for mounting the filter. The buckle is engaged with the edge area of ​​the fill light PCBA, and the middle area of ​​the filter is located in the second mounting hole.

7. The camera module according to claim 5, characterized in that, The lens assembly includes a lens, a camera PCBA connected to the lens on the side away from the inner wall of the second housing, and a cover plate slidably connected to the second housing. The second housing has a third mounting hole for mounting the lens. The buckle is engaged with the edge area of ​​the camera PCBA, and the cover plate is configured to move on the second housing to cover or expose the lens.

8. The camera module according to claim 7, characterized in that, The outer wall of the second housing is provided with an inwardly recessed third limiting groove, the third mounting hole is provided at the bottom of the third limiting groove, and the cover plate is slidably connected in the third limiting groove; the inner side of the cover plate is provided with a second buckle, and the bottom of the third limiting groove is provided with a sliding groove that cooperates with the second buckle, and the second buckle is engaged in the sliding groove.

9. The camera module according to claim 1, characterized in that, The cutting blade is integrally formed on the housing, and a reinforcing rib is provided between the cutting blade and the housing.

10. A 3D printing system, characterized in that, It includes a 3D printer and a material feed hopper configured to feed material to the 3D printer; A feed tube adapter is rotatably connected to the 3D printer; the 3D printer also includes a print head, one end of the feed tube adapter is connected to the feed hopper via a feed tube, and the other end is connected to the print head via a feed tube.

11. The 3D printing system according to claim 10, characterized in that: The rotatable angle range of the feed tube adapter is 25°-85°.

Images