Material guiding equipment, consumable conveying device and 3D printer

Abstract

The utility model provides material guiding equipment, a consumable conveying device and a 3D printer. The material guiding equipment comprises a material guiding assembly, the material guiding assembly comprises a material guiding pipe and a tubular connector, a consumable channel is formed in the material guiding pipe, and the tubular connector is arranged at the end of the material guiding pipe; the flexible feeding assembly is movably arranged in the tubular joint, and the flexible feeding assembly is arranged in the tubular joint; wherein the flexible feeding assembly is configured to be capable of adaptively swinging relative to the tubular joint along with the feeding angle of the consumables, so that the consumables are guided out from the consumable channel in the first direction when being fed; the flexible feeding assembly comprises a guide feeding port and a guide feeding pipe, and the inner diameter of the guide feeding port is gradually reduced in the first direction and then communicates with the guide feeding pipe. The feeding port can automatically swing along with the feeding angle of the consumables, abrasion between the material guiding equipment and the consumables is reduced, and damage to the printing consumables is avoided.

Description

Technical Field

[0001] The present application belongs to the field of 3D printing technology, and specifically relates to material guiding equipment, consumable material conveying devices and 3D printers. Background Art

[0002] 3D printer, also known as three-dimensional printer, stereo printer, is a kind of rapid prototyping process equipment, usually using digital technology to print materials. In recent years, 3D printing technology has a high application prospect in jewelry, footwear, industrial design, architecture, engineering and construction, automobile, aerospace, dental and medical industries, education, geographic information system, civil engineering, firearms and other fields, and the printing consumables are often transported through material guide equipment.

[0003] In traditional material guide equipment, the feed port is usually made of hard materials, and the printing consumables will bend during the conveying process. Long-term use will cause friction with the feed port, resulting in wear and tear at the contact point between the feed port and the printing consumables, and even damage to the printing consumables, further affecting the 3D printing effect. Therefore, how to reduce the wear between the printing consumables and the feed port and avoid damage to the printing consumables is an urgent problem to be solved. Utility Model Content

[0004] The present application provides a material guiding device, a consumables conveying device and a 3D printer to solve the problem of how to reduce the wear between the printing consumables and the feed port and avoid damage to the printing consumables.

[0005] In order to solve the above technical problems, the present application provides a material guiding device, comprising:

[0006] A material guide assembly, the material guide assembly comprising a material guide tube and a tubular joint, the material guide tube is provided with a consumables channel, and the tubular joint is arranged at the end of the material guide tube;

[0007] a flexible feed assembly, the flexible feed assembly being movably disposed in the tubular joint;

[0008] The flexible feeding assembly is configured to be able to swing adaptively relative to the tubular joint according to the feeding angle of the consumables, so that the consumables are guided out from the consumable channel along the first direction during feeding.

[0009] As a further improvement of the present application, the flexible feed assembly includes a guide feed port and a guide feed pipe, and the inner diameter of the guide feed port gradually shrinks along the first direction and then communicates with the guide feed pipe.

[0010] As a further improvement of the present application, the material guiding device further comprises an extrusion component arranged inside the material guiding component;

[0011] The extrusion assembly includes an active extrusion gear and a driven extrusion gear that are relatively arranged. A gap for conveying consumables is arranged between the active extrusion gear and the driven extrusion gear, so that the consumables entering the consumable channel can be discharged from the discharge port of the material guide assembly after passing through the gap along a first direction.

[0012] As a further improvement of the present application, the driven extrusion gear is rotatably embedded in the material guide tube through a driven extrusion rod, and the outer tooth profile of the active extrusion gear is recessed inward to form the gap with the outer side wall of the driven extrusion gear. When the consumable enters the gap and is discharged along the first direction, the driven extrusion gear is driven to rotate synchronously.

[0013] As a further improvement of the present application, the material guiding assembly further includes an adjusting member for adjusting the gap;

[0014] One end of the adjusting member is fixedly connected to the material guide tube, and the other end of the adjusting member is extended in a direction close to the flexible feeding assembly. The relative distance between the material guide tube and the active extrusion gear is changed by pressing the adjusting member to adjust the gap formed between the active extrusion gear and the driven extrusion gear.

[0015] As a further improvement of the present application, the material guide assembly further includes a material guide frame for mounting the material guide pipe, and the material guide pipe is rotatably mounted inside the material guide frame through a supporting connecting rod;

[0016] The outer side wall of the material guide frame is provided with a driving gear for driving the active extrusion gear to rotate, and the driving gear is connected to the active extrusion gear through an active extrusion rod.

[0017] As a further improvement of the present application, an elastic member is arranged between the material guide rack and the material guide tube, one end of the elastic member is in contact with the outer wall of the material guide tube, and the other end of the elastic member is arranged to penetrate the side wall of the material guide rack, and a force in the opposite direction of the material guide rack is applied to the material guide tube through the elastic member to maintain the gap formed between the active extrusion gear and the driven extrusion gear.

[0018] As a further improvement of the present application, the material guiding device further includes a consumables detection component for detecting the conveying status of the consumables, and the consumables detection component includes a fixed plate mounted on the side wall of the material guiding component, and a detection push rod arranged through the fixed plate;

[0019] One end of the detection push rod passes through the side wall of the material guiding assembly and extends into the consumable channel, and the other end of the detection push rod passes through the fixed plate. A photoelectric sensing mechanism is provided at a position of the fixed plate corresponding to the end of the detection push rod. When the consumable enters the consumable channel, the detection push rod is pushed to move on the fixed plate to block the photoelectric sensing mechanism.

[0020] As a further improvement of the present application, the material guiding assembly further includes a light emitting member, and the light emitting member is configured to provide light to the feeding angle.

[0021] The present application also provides a consumable material conveying device, comprising a consumable material installation device, a driving device, and any of the above-mentioned material guiding devices;

[0022] Wherein, the consumables installation device is configured to load consumables, and the driving device is connected to and drives the material guiding device to work so as to realize the feeding and / or withdrawing of the consumables.

[0023] The present application also provides a 3D printer, comprising any one of the material guiding devices described above, or comprising the above-mentioned consumable material conveying device.

[0024] Compared with the prior art, the material guiding device, consumables conveying device and 3D printer provided in the embodiments of the present application are configured as a flexible feeding component that can adaptively swing following the feeding angle of the consumables, so that the consumables can be discharged from the consumables channel along the first direction during feeding, thereby reducing the wear on the feed port of the material guiding device, avoiding damage to the printing consumables, and effectively improving the quality of 3D printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 is a three-dimensional assembly diagram of a material guiding device provided in an embodiment of the present application;

[0027] Figure 2 It is a schematic diagram of the structure of the elastic member in the material guiding device provided in the embodiment of the present application;

[0028] Figure 3 It is a structural schematic diagram of an adjusting member in a material guiding device provided in an embodiment of the present application;

[0029] Figure 4 It is a structural schematic diagram of a consumables detection component in a material guiding device provided in an embodiment of the present application;

[0030] Figure 5 It is a structural schematic diagram of a flexible feeding assembly in a material guiding device provided in an embodiment of the present application;

[0031] Figure 6 It is a structural schematic diagram of the induction plate in the material guiding device provided in the embodiment of the present application;

[0032] Figure 7 It is a structural schematic diagram of a material guide frame in a material guide device provided in an embodiment of the present application;

[0033] Figure 8 It is a structural schematic diagram of the material guiding device provided in the embodiment of the present application;

[0034] Description of reference numerals:

[0035] 10-material guide assembly; 11-material guide pipe; 111-support connecting rod; 12-pipe joint; 13-discharging port; 14-adjusting member; 15-material guide rack; 16-driving gear; 17-elastic member;

[0036] 20-flexible feed assembly; 21-guide feed port; 22-guide feed pipe;

[0037] 30-extrusion assembly; 31-active extrusion gear; 311-active extrusion rod; 32-driven extrusion gear; 321-driven extrusion rod;

[0038] 40-consumables detection component; 41-fixed plate; 42-detection push rod; 43-photoelectric sensing mechanism; 431-photoelectric transmitter; 432-photoelectric receiver; 44-sensing plate; 50-consumables. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise clearly and specifically limited. All directional indications in the embodiments of the present application (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0041] In order to make the description of the disclosed content more detailed and complete, the following is an illustrative description of the implementation methods and specific embodiments of the present application; however, this is not the only form of implementing or using the specific embodiments of the present application. The implementation methods cover the features of multiple specific embodiments and the method steps and sequences used to construct and operate these specific embodiments. However, other specific embodiments can also be used to achieve the same or equivalent functions and step sequences.

[0042] Please refer to Figure 1-Figure 8 In order to solve the problem of how to reduce the wear between the printing consumables and the feed port and avoid damage to the printing consumables in the prior art, the present application embodiment provides a material guiding device, a consumables conveying device and a 3D printer. Please refer to Figure 1 , which is a three-dimensional assembly diagram of a material guiding device provided in an embodiment of the present application, wherein the material guiding device comprises a material guiding component 10 and a flexible material feeding component 20, wherein the material guiding component 10 comprises a material guiding tube 11 and a tubular joint 12, and the present application provides a consumable channel in the material guiding tube 11, and the tubular joint 12 is provided at the end of the material guiding tube 11, and the flexible material feeding component 20 is movably provided in the tubular joint 12, wherein the flexible material feeding component 20 is configured to be able to adaptively swing relative to the tubular joint 12 following the feeding angle of the consumable 50, so that the consumable 50 can enter the consumable channel and be discharged along the first direction during feeding.

[0043] As an optional embodiment, the present application configures the flexible feed assembly 20 to be a deformable flexible material such as Teflon that can swing following the feeding angle of the consumable 50, so that the flexible feed assembly 20 can adaptively swing relative to the tubular joint 12 following the feeding angle of the consumable 50, thereby reducing the wear on the end of the guide tube 11 and the damage to the consumable 50.

[0044] For further information, please refer to Figure 5 , is a structural schematic diagram of a flexible feed component 20 in a material guiding device provided in an embodiment of the present application. The flexible feed component 20 provided in the present application includes a guide feed port 21 and a guide feed pipe 22, wherein the guide feed port 21 is a trumpet-shaped structure with a larger upper portion and a smaller lower portion, and the guide feed pipe 22 is a tubular structure. The inner diameter of the guide feed port 21 gradually shrinks along a first direction and then communicates with the guide feed pipe 22. The present application fixes the flexible feed component 20 as a whole at the end of the guide pipe 11 by setting the above-mentioned guide feed pipe 22 through the tubular joint 12. With this arrangement, the consumable 50 entering from the guide feed port 21 will pass through the guide feed pipe 22 and further enter the consumable channel set in the guide pipe 11, thereby being led out along the first direction under the action of the extrusion component 30.

[0045] As an optional implementation, please refer to Figure 3, is a structural schematic diagram of the adjusting member 14 in the material guiding device provided in an embodiment of the present application. The material guiding device provided in the present application also includes an extrusion assembly 30 arranged inside the material guiding assembly 10, wherein the extrusion assembly 30 includes an active extrusion gear 31 and a driven extrusion gear 32 arranged relatively to each other. It can be observed that a gap for conveying the consumable 50 is formed between the active extrusion gear 31 and the driven extrusion gear 32, so that the consumable 50 entering the material guiding channel can pass through the gap along the first direction and then be discharged from the discharge port 13 arranged at the other end of the material guiding tube 11.

[0046] In a specific embodiment provided in this application, please continue to refer to Figure 3 It can be observed that the above-mentioned driven extrusion gear 32 is rotatably embedded in the guide tube 11 through the driven extrusion rod 321, and the outer tooth profile of the active extrusion gear 31 is recessed inward to form a gap with the outer side wall of the driven extrusion gear 32. When the consumable 50 enters the gap through the flexible feeding assembly 20 and is discharged along the first direction, it will drive the driven extrusion gear 32 to rotate synchronously.

[0047] Furthermore, the material guide assembly 10 provided in the present application also includes a material guide frame 15 for setting up the material guide pipe 11, please refer to Figure 7 , is a structural schematic diagram of the material guide frame 15 in the material guide device provided in an embodiment of the present application. It can be observed that the material guide tube 11 is rotatably mounted inside the material guide frame 15 through a supporting connecting rod 111, and the supporting connecting rod 111 sequentially penetrates the material guide frame 15 and the material guide tube 11 so as to mount the material guide tube 11 inside the material guide frame 15. The outer wall of the material guide frame 15 is provided with an active gear 16 for driving the active extrusion gear 31 to rotate, and the above-mentioned active gear 16 and the active extrusion gear 31 are transmission connected through the active extrusion rod 311.

[0048] Of course, the material guiding tube 11 provided in the present application is also relatively recessed inwardly relative to the active extrusion gear 31 so as to better realize the relative positional relationship between the active extrusion gear 31 and the driven extrusion gear 32, thereby improving the utilization rate of the internal space of the material guiding device.

[0049] It should be noted that the present application can drive the active gear 16 to rotate through a driving component (not shown in the figure), and further drive the active extrusion gear 31 to rotate through the active extrusion rod 311, so as to realize that the driving component drives the active extrusion gear 31 to rotate so that the consumable 50 is discharged in the first direction, and when the consumable 50 is transported from top to bottom, the consumable 50 can be fed, and when the consumable 50 is extruded from bottom to top, the consumable 50 can be withdrawn, thereby realizing the feeding and withdrawing of the consumable 50 through the rotation direction of the active extrusion gear 31; of course, the relative distance of the gap can also be adjusted manually, and then the manual withdrawal can be realized by extracting the consumable 50 from bottom to top, and the above methods are all feasible.

[0050] For further information, please refer to Figure 3 The material guide assembly 10 provided in the present application also includes an adjusting member 14 for adjusting the gap. When the automatic feeding and withdrawing of the consumable 50 fails, the gap between the active extrusion gear 31 and the driven extrusion gear 32 can be adjusted by the adjusting member 14 to achieve manual withdrawal.

[0051] Specifically, it can be observed that one end of the adjustment member 14 provided in the present application is fixedly connected to the material guide tube 11, and the other end of the adjustment member 14 is extended in the direction close to the flexible feed assembly 20, so that the adjustment member 14 can be pressed at a position close to the flexible feed assembly 20. Since the material guide tube 11 is rotatably mounted inside the material guide frame 15 through the support connecting rod 111, and the active extrusion gear 31 is transmission-connected to the active gear 16 arranged on the outer wall of the material guide frame 15 through the active extrusion rod 311, the relative distance between the material guide tube 11 and the active extrusion gear 31 can be changed by pressing the adjustment member 14, thereby adjusting the gap formed between the active extrusion gear 31 and the driven extrusion gear 32, so as to reduce or increase the gap according to the conveying requirements of the consumable 50, avoid the preset gap not matching the diameter of the consumable 50, and avoid the situation of material running and breaking, and the consumable 50 can be manually returned by adjusting the relative distance of the gap.

[0052] It should be noted that the above-mentioned adjustment member 14 is preferably fixed to one end of the guide frame 15 close to the flexible feed assembly 20, and its shape and location should not affect the relative position relationship between the active extrusion gear 31 and the driven extrusion gear 32.

[0053] In the embodiment of the present application, in order to better maintain the gap formed between the active extrusion gear 31 and the driven extrusion gear 32 and prevent the consumable 50 from slipping during the feeding and withdrawing process, the present application further provides an elastic member 17 between the guide frame 15 and the guide tube 11, please refer to Figure 2 , is a schematic diagram of the structure of the elastic member 17 in the material guiding device provided in an embodiment of the present application. It can be observed that one end of the elastic member 17 is in contact with the outer wall of the material guiding tube 11, and the other end of the elastic member 17 is arranged to penetrate the side wall of the material guiding frame 15. The elastic member 17 applies a force in the opposite direction to the material guiding frame 15 to the material guiding tube 11 to maintain the gap formed between the active extrusion gear 31 and the driven extrusion gear 32, thereby pressing the consumable 50 to ensure that the consumable 50 does not slip during the 3D printing process.

[0054] It should be noted that the elastic member 17 preferably uses a spring that can undergo elastic deformation. Of course, as long as it can be arranged between the material guide frame 15 and the material guide tube 11, and apply a force in the opposite direction of the material guide tube 11 to the material guide frame 15, so as to maintain the relative gap between the active extrusion gear 31 and the driven extrusion gear 32, any form of elastic member 17 that can undergo deformation is feasible, and the present application does not impose further restrictions on the specific implementation of the elastic member 17.

[0055] In addition, since the other end of the elastic member 17 passes through the side wall of the guide frame 15, when the adjustment member 14 is pressed to change the gap formed between the active extrusion gear 31 and the driven extrusion gear 32, the guide tube 11 can be moved along the extension direction of the elastic member 17 to guide the guide tube 11.

[0056] Furthermore, the material guiding assembly 10 provided in the present application also includes a light-emitting component (not shown in the figure), which can be specifically arranged at a position of the material guiding tube 11 close to the flexible feeding assembly 20, so as to provide light to the feeding angle of the consumable 50 through the light-emitting component, so as to timely know the feeding status of the consumable 50; it should be noted that as long as the feeding status of the consumable 50 can be illuminated by the light-emitting component, any selected light-emitting component form and any setting position are feasible, and the present application does not impose further restrictions on this.

[0057] To prevent the filament 50 from breaking during the extrusion process and affecting the 3D printing effect, please refer to Figure 4 , which is a schematic diagram of the structure of the consumables detection component 40 in the material guiding device provided in the embodiment of the present application. The present application also provides a consumables detection component 40 for detecting the material guiding status of the consumables 50. Please refer to Figure 6 , which is a structural schematic diagram of the sensing plate 44 in the material guiding device provided in an embodiment of the present application. The present application preferably sets the consumable detection component 40 on the side wall of the material guiding component 10 above the active extrusion gear 31 and the driven extrusion gear 32. It can be observed that the consumable detection component 40 includes a fixed plate 41 set on the side wall of the material guiding component 10, and a detection push rod 42 arranged transversely through the fixed plate 41.

[0058] In a specific embodiment provided in this application, please refer to Figure 8, is a structural schematic diagram of the material guiding device provided in an embodiment of the present application, wherein the first direction is the direction extending from the flexible feeding component 20 to the discharge port 13, the direction in which the detection push rod 42 transversely penetrates the fixed plate 41 is a positional relationship relatively perpendicular to the first direction, one end of the detection push rod 42 penetrates the side wall of the material guiding component 10 and extends into the consumable channel inside the material guiding component 10, the other end of the detection push rod 42 penetrates the fixed plate 41 and is capable of moving on the fixed plate 41 along the second direction, where the second direction is perpendicular to the first direction, and the present application is provided with a photoelectric sensing mechanism 43 at a position on the fixed plate 41 corresponding to the end of the detection push rod 42, when the consumable 50 enters the consumable channel, it will push the detection push rod 42 to move on the fixed plate 41 along the second direction to block the photoelectric sensing mechanism 43.

[0059] Furthermore, the fixed plate 41 can be set on the outer wall of the material guide tube 11, and the detection push rod 42 can be extended to the consumable channel inside the material guide tube 11 after passing through the fixed plate 41 and the side wall of the material guide tube 11 horizontally, and the detection push rod 42 needs to block part of the consumables 50 along the consumable channel in the first direction. At this time, the consumables 50 entering the consumable channel will squeeze the detection push rod 42, causing the detection push rod 42 to move along the second direction, and the end of the detection push rod 42 will block the sensing area formed between the photoelectric sensing mechanisms 43. When the photoelectric sensing mechanism 43 recognizes the blocked state, it is considered that the material guiding device is guiding normally at the current moment; when the material guiding is stopped or the material is cut off, the detection push rod 42 extends to the inside of the material guide tube 11 according to the preset position, and the end of the detection push rod 42 cannot block the photoelectric sensing mechanism 43, then it is considered that the material guiding device is guiding abnormally at the current moment, and corresponding maintenance measures are required.

[0060] In a specific embodiment provided in the present application, the above-mentioned photoelectric sensing mechanism 43 can be configured in the form of a photoelectric transmitter 431 and a photoelectric receiver 432. By setting two sensing plates 44 on the side of the fixed plate 41 away from the material guide tube 11, the above-mentioned photoelectric transmitter 431 and the photoelectric receiver 432 are correspondingly set on the two sensing plates 44 to form a sensing area. Of course, the two sensing plates 44 need to be set corresponding to the lateral movement trajectory of the detection push rod 42. When the detection push rod 42 is pushed away by the consumable 50 and enters between the two sensing plates 44, it will block the photoelectric transmitter 431 and the photoelectric receiver 432 respectively set on the two sensing plates 44. In this case, it is considered that the material guiding device is guiding normally at the current moment. When the detection push rod 42 is not pushed away by the consumable 50, it will not enter between the two sensing plates 44, nor will it block the photoelectric transmitter 431 and the photoelectric receiver 432 respectively set on the two sensing plates 44. In this case, it is considered that the material guiding device is guiding abnormally at the current moment.

[0061] Of course, the above-mentioned photoelectric sensing mechanism 43 can also be set as a sensor form of a forward-beaming laser sensor, a diffuse reflection photoelectric sensor, etc. As long as it can be set between the two sensing plates 44 and identify whether the space between the two sensing plates 44 is blocked by the detection push rod 42, any form of the photoelectric sensing mechanism 43 selected is feasible, and the present application does not impose further restrictions on this.

[0062] Based on the above-mentioned material guiding device, the present application also provides a consumable material conveying device, which includes a consumable material installation device, a driving device and the above-mentioned material guiding device, wherein the consumable material installation device is used to load consumables, and the driving device is used to connect and drive the material guiding device to work, so as to realize the feeding and / or returning of consumables.

[0063] The present application also provides a 3D printer, including the material guiding device provided in the above embodiment or the consumable conveying device provided in the above embodiment, by which the consumable 50 used in the 3D printing process enters the consumable channel in the material guide tube 11 through the flexible feeding component 20, enters the gap formed between the active extrusion gear 31 and the driven extrusion gear 32, and is then discharged, thereby realizing the output of the consumable 50 from the discharge port 13 to cooperate with the 3D printer to realize the printing operation.

[0064] For other details about the above-mentioned consumable material conveying device and 3D printer to implement the above-mentioned technical solution, please refer to the description of the material guiding device provided in the above-mentioned application embodiment, which will not be repeated here.

[0065] The material guiding device, consumable material conveying device and 3D printer provided in the embodiments of the present application are provided with an adjusting part to adjust the gap formed between the active extrusion gear and the driven extrusion gear, and the relative distance of the gap is adjusted by pressing the adjusting part to facilitate the manual return of the consumable material; a consumable material detection component is provided to detect whether the consumable material is guided normally to avoid the consumable material from being broken during the conveying process; by inferring whether the baffle plate provided on the push rod enters the sensing area formed between the two sensing plates and whether it blocks the photoelectric sensing mechanism provided between the two sensing plates, the consumable material is fed normally to detect; a light-emitting part is provided to provide light for the feeding angle of the consumable material, so as to know the feeding status of the consumable material in time; a flexible feeding component that can adaptively swing following the feeding angle of the consumable material is provided, thereby reducing the wear on the material guiding tube and the damage to the consumable material, and can effectively improve the quality of 3D printing.

[0066] It can be understood that the technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, 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.

[0067] The above embodiments are merely exemplary embodiments used to illustrate the principles of the present application, but the present application is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of the present application, and these modifications and improvements are also considered to be within the scope of protection of the present application.

Claims

1. A material guiding device, characterized in that: include: A material guide assembly, the material guide assembly comprising a material guide tube and a tubular joint, the material guide tube is provided with a consumables channel, and the tubular joint is arranged at the end of the material guide tube; a flexible feed assembly, the flexible feed assembly being movably disposed in the tubular joint; The flexible feeding assembly is configured to be able to swing adaptively relative to the tubular joint according to the feeding angle of the consumables, so that the consumables are guided out from the consumable channel along the first direction during feeding.

2. The material guiding device according to claim 1, characterized in that: The flexible feed assembly comprises a guide feed port and a guide feed pipe. The inner diameter of the guide feed port gradually shrinks along the first direction and then communicates with the guide feed pipe.

3. The material guiding device according to claim 1, characterized in that: The material guiding device also includes an extrusion component arranged inside the material guiding component; The extrusion assembly includes an active extrusion gear and a driven extrusion gear that are relatively arranged. A gap for conveying consumables is arranged between the active extrusion gear and the driven extrusion gear, so that the consumables entering the consumable channel can be discharged from the discharge port of the guide tube after passing through the gap along a first direction.

4. The material guiding device according to claim 3, characterized in that: The driven extrusion gear is rotatably embedded in the material guide tube through a driven extrusion rod, and the outer tooth profile of the active extrusion gear is recessed inward to form the gap with the outer side wall of the driven extrusion gear. When the consumable enters the gap and is discharged along the first direction, the driven extrusion gear is driven to rotate synchronously.

5. The material guiding device according to claim 4, characterized in that: The material guiding assembly further comprises an adjusting member for adjusting the gap; One end of the adjusting member is fixedly connected to the material guide tube, and the other end of the adjusting member is extended in a direction close to the flexible feeding assembly. The relative distance between the material guide tube and the active extrusion gear is changed by pressing the adjusting member to adjust the gap formed between the active extrusion gear and the driven extrusion gear.

6. The material guiding device according to claim 3, characterized in that: The material guide assembly further comprises a material guide frame for mounting the material guide pipe, wherein the material guide pipe is rotatably mounted inside the material guide frame via a supporting connecting rod; The outer side wall of the material guide frame is provided with a driving gear for driving the active extrusion gear to rotate, and the driving gear is connected to the active extrusion gear through an active extrusion rod.

7. The material guiding device according to claim 6, characterized in that: An elastic member is arranged between the material guide frame and the material guide tube, one end of the elastic member is in contact with the outer wall of the material guide tube, and the other end of the elastic member is arranged to penetrate the side wall of the material guide frame, and a force in the opposite direction of the material guide frame is applied to the material guide tube through the elastic member to maintain the gap formed between the active extrusion gear and the driven extrusion gear.

8. The material guiding device according to claim 1, characterized in that: The material guiding device further comprises a consumable material detection assembly for detecting the conveying status of the consumable material, wherein the consumable material detection assembly comprises a fixing plate mounted on the side wall of the material guiding assembly, and a detection push rod arranged through the fixing plate; One end of the detection push rod passes through the side wall of the material guiding assembly and extends into the consumable channel, and the other end of the detection push rod passes through the fixed plate. A photoelectric sensing mechanism is provided at a position of the fixed plate corresponding to the end of the detection push rod. When the consumable enters the consumable channel, the detection push rod is pushed to move on the fixed plate to block the photoelectric sensing mechanism.

9. The material guiding device according to claim 1, characterized in that: The material guiding assembly further comprises a light emitting member, and the light emitting member is configured to provide light to the feeding angle.

10. A consumable material conveying device, characterized in that: It comprises a consumables installation device, a driving device and a material guiding device as claimed in any one of claims 1 to 9; Wherein, the consumables installation device is configured to load consumables, and the driving device is connected to and drives the material guiding device to work so as to realize the feeding and / or withdrawing of the consumables.

11. A 3D printer, characterized in that: The 3D printer includes the material guiding device according to any one of claims 1 to 9, or includes the consumable material conveying device according to claim 10.

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