Wire extrusion device of 3D printer
By designing a wire extrusion device for 3D printers including base, stepper motor and belt drive, the problems of large size and complex structure of wire inlet mechanism in the prior art are solved, and the high-quality printing requirements of small 3D printers are realized .
Patent Information
- Application Number
- CN202421073610.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-16
AI Technical Summary
The existing 3D printing equipment has a large wire wire insertion mechanism and is not suitable for desktop or small 3D printers.
A 3D printer wire extrusion device including a base, a stepper motor, a main transmission assembly and a slave transmission assembly is designed, and the wire is realized through the clearance transmission connection between the first belt and the second belt, combined with the pulley and gear structure. Accurate transmission and pullback, and speed control is achieved through stepper motors.
A wire extrusion device with small size, simple structure and easy to disassemble is realized, ensuring high-quality printing results and meeting the working needs of small 3D printers.
Smart Images
Figure CN222271301U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of 3D printing, in particular to a wire extrusion device for a 3D printer. Background Art
[0002] At present, 3D printing equipment has developed rapidly, has gradually entered people's field of vision, and has been applied to various industries. Most of the existing wire feeding mechanisms are large in size and complex in structure, which are not suitable for the use of desktop or small 3D printers. Utility Model Content
[0003] The utility model aims to provide a wire extrusion device for a 3D printer.
[0004] The utility model provides a 3D printer wire extrusion device, comprising a base (101), a stepping motor (501), a main transmission component provided with a first belt (301) and a slave transmission component provided with a second belt (305); the first belt (301) and the stepping motor (501) are transmission-connected; the main transmission component and the slave transmission component are both arranged on the base (101), and the main transmission component and the slave transmission component are transmission-connected; there is a gap between the first belt (301) and the second belt (305).
[0005] Preferably, the main transmission assembly includes a first pulley (302); the slave transmission assembly includes a second pulley (303); the first pulley (302) and the second pulley (303) have the same structure; the first pulley (302) includes a first gear body; the first gear body (3021) on the first pulley (302) and the first gear body (3021) on the second pulley (303) are meshed.
[0006] Preferably, the first pulley (302) further includes a second gear body (3022); the second gear body (3022) is fixed to one side of the first gear body (3021); the second gear body (3022) of the first pulley (302) is meshed with the first belt (301); the second gear body (3022) of the second pulley (303) is meshed with the second belt (305).
[0007] Preferably, the base (101) is provided with a first groove (1013) and a second groove (1017); the first groove (1013) and the second groove (1017) are connected; a shaft (1016) matching the first pulley (302) is fixed at the bottom of the first groove (1013) and the second groove (1017); a bearing is connected to the outer sleeve of the shaft (1016); the first pulley (302) is assembled on the shaft (1016) of the first groove (1013); and the second pulley (303) is assembled on the shaft (1016) of the second groove (1017).
[0008] Preferably, the main transmission component also includes a third pulley (307); the slave transmission component also includes a fourth pulley (306); the third pulley (307) and the fourth pulley (306) are both of the same structure as the first pulley (302); the base (101) is also provided with a third groove (1021) and a fourth groove (1018); the third groove (1021) and the fourth groove (1018) are connected; the bottom of the third groove (1021) and the bottom of the fourth groove (1018) are both fixed with the shaft (1016); the third pulley (307) is meshed with the first belt (301); the second belt (305) and the fourth pulley (306) are meshed with each other.
[0009] Preferably, the first belt (301) between the first pulley (302) and the third pulley (307) and the second belt (305) between the second pulley (303) and the second fourth pulley (306) are arranged in parallel and have the gap.
[0010] Preferably, an arc-shaped groove (1012) is provided at one end of the base (101); fixing holes (1020) are provided at both ends of the arc-shaped groove (1012); the stepper motor (501) is located at the arc-shaped groove (1012); and the stepper motor (501) and the base (101) are fixed to each other after the stepper motor (501) is inserted into the fixing hole (1020) by means of screws.
[0011] Preferably, a first synchronous wheel (401) is fixed on the output shaft of the stepping motor (501); the first synchronous wheel (401) and the first belt (301) are meshed.
[0012] Preferably, two sets of second synchronous wheels (304) are fixed on the base (101); the two sets of second synchronous wheels (304) are meshed with the second belt (305).
[0013] Preferably, the base (101) is further provided with two groups of bosses (1011); the two groups of bosses (1011) are respectively located at two ends of the top of the base (101); the two groups of bosses (1011) and the base (101) are an integrally formed structure; the two groups of bosses (1011) are both provided with a first through hole (1019); the two groups of the first through holes (1019) and the gap between the first belt (301) and the second belt (305) are located on the same horizontal line.
[0014] Preferably, the first through hole (1019) is tapered.
[0015] Preferably, pipe joints (701) are fixed on both groups of the first through holes (1019).
[0016] Preferably, the 3D printer wire extrusion device provided by the utility model further comprises a cover plate (601); the tops of the two groups of bosses (1011) are both provided with third through holes (1014); and the cover plate (601) is provided with a plurality of groups of fourth through holes (6011).
[0017] The 3D printer wire extrusion device provided by the utility model has a small size, a simple structure, and is easy to disassemble. At the same time, it can achieve precise speed control, ensure high-quality printing, and meet the working requirements of the 3D printer. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a three-dimensional structural schematic diagram of the 3D printer wire extrusion device provided by the utility model;
[0019] Figure 2 A top view of the 3D printer wire extrusion device provided by the utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the 3D printer wire extrusion device provided by the utility model when the cover plate is not installed;
[0021] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the middle A part;
[0022] Figure 5 A schematic diagram of the structure of a base provided by an embodiment of the utility model from a first perspective;
[0023] Figure 6 A schematic diagram of the structure of the base provided by the embodiment of the utility model from a second viewing angle;
[0024] Figure 7 for Figure 6 A schematic diagram of the cross-sectional structure of the first through hole after being cut along the section line AA;
[0025] Figure 8 A schematic diagram of the structure of the cover plate provided by an embodiment of the utility model;
[0026] Fig. 9 A schematic diagram of the structure of a first pulley provided in an embodiment of the utility model;
[0027] Fig.10 This is a schematic structural diagram of the second synchronous wheel provided in an embodiment of the utility model. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] like Figure 1-Figure 10 As shown, the 3D printer wire extrusion device provided in this embodiment includes a base 101, a stepper motor 501, a main transmission assembly provided with a first belt 301 and a slave transmission assembly provided with a second belt 305; the first belt 301 and the stepper motor 501 are connected in transmission; the main transmission assembly and the slave transmission assembly are both arranged on the base 101, and the main transmission assembly and the slave transmission assembly are connected in transmission; there is a gap between the first belt 301 and the second belt 305. It can be understood by those skilled in the art that the stepper motor 501 and the main transmission assembly are connected by a belt to provide a driving force to the main transmission assembly and the slave transmission assembly, and the wire passes through the gap between the first belt 301 and the second belt 305. The feeding and retraction of the wire are realized by the rotation of the first belt 301 and the second belt 305 and the friction between the wire and the two. The stepper motor 501 can realize precise speed control to ensure high-quality printing. The 3D printer wire extrusion device provided in this embodiment is small in size, simple in structure, and easy to disassemble, which meets the working requirements of the 3D printer.
[0030] Further, the main transmission assembly includes a first pulley 302; the slave transmission assembly includes a second pulley 303; the first pulley 302 and the second pulley 303 have the same structure; the first pulley 302 includes a first gear body; the first gear body 3021 on the first pulley 302 and the first gear body 3021 on the second pulley 303 are meshed. Those skilled in the art can understand that when the first pulley 302 rotates, the second pulley 303 will also rotate synchronously.
[0031] Furthermore, the first pulley 302 further includes a second gear body 3022; the second gear body 3022 is fixed to one side of the first gear body 3021; the second gear body 3022 of the first pulley 302 is meshed with the first belt 301; the second gear body 3022 of the second pulley 303 is meshed with the second belt 305. Those skilled in the art can understand that the rotation of the first belt 301 drives the first pulley 302 to rotate, and through the meshing of the first pulley 302 and the second pulley 303, the second belt 305 can rotate synchronously with the first belt 301.
[0032] Further, the base 101 is provided with a first groove 1013 and a second groove 1017; the first groove 1013 and the second groove 1017 are connected; the bottom of the first groove 1013 and the second groove 1017 are fixed with a shaft 1016 matching the first pulley 302; the shaft 1016 is connected with a bearing; the first pulley 302 is assembled on the shaft 1016 of the first groove 1013; the second pulley 303 is assembled on the shaft 1016 of the second groove 1017. Those skilled in the art can understand that the shaft 1016 is used to assemble the first pulley 302 and the second pulley 303, and the first groove 1013 and the second groove 1017 are respectively equipped with pulleys, and the power is transmitted by the meshing of the two pulleys to synchronize the speed.
[0033] Further, the main transmission assembly further includes a third pulley 307; the slave transmission assembly further includes a fourth pulley 306; the third pulley 307 and the fourth pulley 306 are both of the same structure as the first pulley 302; the base 101 is further provided with a third groove 1021 and a fourth groove 1018; the third groove 1021 and the fourth groove 1018 are connected; the bottom of the third groove 1021 and the fourth groove 1018 are both fixed with the shaft 1016; the third pulley 307 is meshed with the first belt 301; the second belt 305 is meshed with the fourth pulley 306. Those skilled in the art can understand that by adding the third pulley 307 and the fourth pulley 306, the contact surface between the wire and the belt can be increased; thereby, the transmission efficiency of the wire can be improved.
[0034] Those skilled in the art can understand that the first pulley and the second pulley form a group; the third pulley and the fourth pulley form a group, and the transmission efficiency and wire transmission efficiency can be improved by increasing the number of pulley groups on the base.
[0035] Further, the first belt 301 between the first pulley 302 and the third pulley 307 and the second belt 305 between the second pulley 303 and the second fourth pulley 306 are arranged in parallel and have the gap. Those skilled in the art can understand that by changing the assembly position of the stepper motor, the gap between the first belt 301 and the second belt 305 is adjusted, and the contact area between the fiber and the belt is adjusted, thereby improving the feeding efficiency.
[0036] Furthermore, an arc-shaped groove 1012 is provided at one end of the base 101; fixing holes 1020 are provided at both ends of the arc-shaped groove 1012; the stepper motor 501 is located at the arc-shaped groove 1012; the stepper motor 501 is fixed to the base 101 by inserting screws into the fixing holes 1020. Those skilled in the art can understand that the arc-shaped groove 1012 is provided at one end of the base 101, and the motor is assembled at the arc-shaped groove 1012, so that the 3D printer wire extrusion device provided in this embodiment has a more compact structure. In addition, the tension of the first belt 301 can be adjusted by adjusting the distance between the stepper motor 501 and the first pulley 302.
[0037] Furthermore, a first synchronous wheel 401 is fixed on the output shaft of the stepping motor 501 ; the first synchronous wheel 401 is meshed with the first belt 301 .
[0038] Furthermore, two sets of second synchronous wheels 304 are fixed on the base 101 ; both sets of the second synchronous wheels 304 are meshed with the second belt 305 .
[0039] Furthermore, two groups of bosses 1011 are provided on the base 101; the two groups of bosses 1011 are respectively located at the two ends of the top of the base 101; the two groups of bosses (1011) and the base (101) are an integrally formed structure; the two groups of bosses 1011 are both provided with a first through hole 1019; the two groups of the first through holes 1019 and the gap between the first belt 301 and the second belt 305 are located on the same horizontal line.
[0040] Furthermore, the first through hole 1019 is tapered. Those skilled in the art will appreciate that the tapered structure allows the first through hole to have a larger opening at one end close to the belt, which helps the wire to quickly pass through the first through hole after being transmitted by the belt, thus playing a guiding role.
[0041] Furthermore, pipe joints 701 are fixed on both groups of the first through holes 1019 .
[0042] Furthermore, the 3D printer wire extrusion device provided in this embodiment further includes a cover plate 601; the tops of the two groups of bosses 1011 are both provided with third through holes 1014; and the cover plate 601 is provided with multiple groups of fourth through holes 6011. Those skilled in the art can understand that the cover plate 601 is locked with the base 101 by screws, which is convenient for disassembly and can also protect the parts on the base 101.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A 3D printer wire extrusion device, characterized in that: The invention comprises a base (101), a stepper motor (501), a main transmission component provided with a first belt (301), and a slave transmission component provided with a second belt (305); the first belt (301) and the stepper motor (501) are transmission-connected; the main transmission component and the slave transmission component are both arranged on the base (101), and the main transmission component and the slave transmission component are transmission-connected; there is a gap between the first belt (301) and the second belt (305).
2. The 3D printer wire extrusion device according to claim 1, characterized in that: The main transmission component includes a first pulley (302); the slave transmission component includes a second pulley (303); the first pulley (302) and the second pulley (303) have the same structure; the first pulley (302) includes a first gear body; the first gear body (3021) on the first pulley (302) and the first gear body (3021) on the second pulley (303) are meshed.
3. The 3D printer wire extrusion device according to claim 2, characterized in that: The first pulley (302) also includes a second gear body (3022); the second gear body (3022) is fixed to one side of the first gear body (3021); the second gear body (3022) of the first pulley (302) is meshed with the first belt (301); the second gear body (3022) of the second pulley (303) is meshed with the second belt (305).
4. The 3D printer wire extrusion device according to claim 3, characterized in that: The base (101) is provided with a first groove (1013) and a second groove (1017); the first groove (1013) and the second groove (1017) are connected; a shaft (1016) matching the first pulley (302) is fixed at the bottom of the first groove (1013) and the second groove (1017); a bearing is connected to the outer sleeve of the shaft (1016); the first pulley (302) is assembled on the shaft (1016) of the first groove (1013); and the second pulley (303) is assembled on the shaft (1016) of the second groove (1017).
5. The 3D printer wire extrusion device according to claim 4, characterized in that: The main transmission component also includes a third pulley (307); the slave transmission component also includes a fourth pulley (306); the third pulley (307) and the fourth pulley (306) are both of the same structure as the first pulley (302); the base (101) is also provided with a third groove (1021) and a fourth groove (1018); the third groove (1021) and the fourth groove (1018) are connected; the bottom of the third groove (1021) and the bottom of the fourth groove (1018) are both fixed with the shaft (1016); the third pulley (307) is meshed with the first belt (301); the second belt (305) and the fourth pulley (306) are meshed with each other.
6. The 3D printer wire extrusion device according to claim 5, characterized in that: The first belt (301) between the first pulley (302) and the third pulley (307) and the second belt (305) between the second pulley (303) and the second fourth pulley (306) are arranged in parallel and have the gap.
7. The 3D printer wire extrusion device according to claim 6, characterized in that: An arc-shaped groove (1012) is provided at one end of the base (101); fixing holes (1020) are provided at both ends of the arc-shaped groove (1012); the stepper motor (501) is located at the arc-shaped groove (1012); and the stepper motor (501) and the base (101) are fixed to each other after the stepper motor (501) is inserted into the fixing hole (1020) by means of screws.
8. The 3D printer wire extrusion device according to claim 7, characterized in that: A first synchronous wheel (401) is fixed on the output shaft of the stepping motor (501); the first synchronous wheel (401) is meshed with the first belt (301); Two groups of second synchronous wheels (304) are also fixed on the base (101); the two groups of the second synchronous wheels (304) are both meshed with the second belt (305).
9. The 3D printer wire extrusion device according to claim 8, characterized in that: The base (101) is also provided with two groups of bosses (1011); the two groups of bosses (1011) are respectively located at two ends of the top of the base (101); the two groups of bosses (1011) and the base (101) are an integrally formed structure; the two groups of bosses (1011) are both provided with a first through hole (1019); The first through hole (1019) is tapered; Pipe joints (701) are fixed on both groups of the first through holes (1019).
10. The 3D printer wire extrusion device according to claim 9, characterized in that: It also includes a cover plate (601); the tops of the two groups of bosses (1011) are each provided with a third through hole (1014); and the cover plate (601) is provided with a plurality of groups of fourth through holes (6011).