A 3D printing device and printing method for bicycle seat cushion

Abstract

The present invention belongs to the technical field of 3D printing devices, and discloses a 3D printing device for a bicycle seat and a printing processing method, comprising a base, a load-bearing plate and a gantry are installed on the top of the base, a cross frame is installed on one side of the gantry, a side wall of the cross frame is connected to a printing seat, the printing seat is arranged above the load-bearing plate, a reel frame is installed on the top of the gantry, raw materials are arranged inside the reel frame, one end of the raw materials away from the reel frame is embedded in the printing seat, a feeding structure, a throat and a nozzle are arranged inside the printing seat, a filtering component is arranged inside the throat, and a heating module is arranged outside the throat. When the raw materials enter the throat, the raw materials are filtered through a filter screen to remove impurities, unreacted powder or solidified large particles contained in the melted material, thereby ensuring that the printed products have higher precision and better surface quality.

Description

Technical Field

[0001] The present invention belongs to the technical field of 3D printing devices, and specifically relates to a 3D printing device and a printing processing method for a bicycle seat. Background Art

[0002] The bicycle seat is an important part of the bicycle and has a vital impact on the rider's comfort and riding experience;

[0003] In recent years, with the development of 3D printing technology, more and more bicycle seat cushions have begun to be manufactured using 3D printing technology. Bicycle seat cushion products using 3D printing technology not only have the advantages of personalized customization, lightweight design, and improved breathability, but also focus on durability and environmental protection, bringing riders a more comfortable and personalized riding experience.

[0004] In the application process of 3D printing technology, the melted material may contain impurities, unreacted powder or solidified large particles. If these impurities are directly used in printing without being filtered, the accuracy and quality of the printed parts will be seriously affected. Therefore, a 3D printing device and a printing processing method for a bicycle seat are proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a 3D printing device and a printing method for a bicycle seat to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a 3D printing device for a bicycle seat, comprising a base, a bearing plate and a gantry are installed on the top of the base, a cross frame is installed on one side of the gantry, a side wall of the cross frame is connected to a printing seat, the printing seat is arranged above the bearing plate, a reel frame is installed on the top of the gantry, a raw material is arranged inside the reel frame, one end of the raw material away from the reel frame is embedded in the printing seat, a feeding structure, a throat and a nozzle are arranged inside the printing seat, a filter assembly is arranged inside the throat, and a heating module is arranged outside the throat;

[0007] Wherein, the filtering component comprises a filter screen arranged inside the throat, a stirring component is arranged at the top end of the filter screen, and a top material component is arranged at the bottom end of the filter screen.

[0008] As a further technical solution of the present invention, the stirring assembly includes a scraper arranged at the top of the filter, a grinding assembly is arranged at the top of the scraper, the scraper is fixedly mounted inside the ring gear, the ring gear is rotatably mounted inside the throat, one side of the ring gear is meshed with a gear, a rotating shaft is fixedly mounted on the inner wall of the gear, and a motor is mounted on the top of the rotating shaft.

[0009] As a further technical solution of the present invention, the side wall of the scraper is inclined.

[0010] As a further technical solution of the present invention, the grinding assembly includes a movable plate arranged at the top of the scraper, one end of the movable plate is fixedly connected to a movable shaft, the outer wall of the movable shaft is fixedly connected to a limiting plate, the limiting plate is slidably installed inside the ring gear, a first spring is arranged between the limiting plate and the ring gear, a guide ring is arranged on the top of the ring gear, the guide ring is fixedly installed inside the throat, and the inner wall of the guide ring is slidably connected to the movable shaft.

[0011] As a further technical solution of the present invention, the movable plate is slidably installed inside the ring gear.

[0012] As a further technical solution of the present invention, both the inner wall of the movable plate and the outer wall of the scraper are provided with bumps, and the bumps are evenly distributed.

[0013] As a further technical solution of the present invention, the protrusion is fixedly connected to the ring gear, the protrusion is slidably connected to the scraper, and a second spring is installed between the protrusion and the scraper.

[0014] As a further technical solution of the present invention, the top material assembly includes a top material plate arranged at the bottom end of the filter screen, a bottom plate is arranged at the bottom of the top material plate, the bottom plate and the top material plate are connected by a connecting shaft, a fixed shaft is fixedly installed on one side of the bottom plate, and the fixed shaft passes through the inner wall of the filter screen and is fixedly installed at the bottom end of the scraper.

[0015] As a further technical solution of the present invention, a third spring is arranged between the bottom plate and the top plate, and the third spring is evenly distributed.

[0016] A printing method of a 3D printing device for a bicycle seat cushion comprises the following steps:

[0017] S1: When printing a bicycle seat, the feeding structure and the heating module are started, the raw material is pulled downward into the throat through the feeding structure, and the material is melted through the heating module;

[0018] S2: The melted material is filtered through the filter to remove impurities contained therein, and the motor is started at the same time. The motor drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the rotation of the gear, and the rotation of the gear drives the rotation of the ring gear. The rotation of the ring gear drives the rotation of the scraper and the moving plate, so that the scraper stirs the material above the filter screen to improve the filtering efficiency;

[0019] S3: When the scraper rotates, it drives the fixed shaft to rotate inside the filter screen. The rotation of the fixed shaft drives the rotation of the bottom plate. The rotation of the bottom plate drives the rotation of the top plate, so that the top plate pushes the filter screen upward, assisting the scraper to scoop up the material, so that part of the material is guided to the inside of the moving plate through the scraper;

[0020] S4: When the moving plate rotates, it drives the moving shaft to move, so that the moving shaft slides on the inner wall of the guide ring, and the moving plate slides on the top of the scraper through the guidance of the guide ring. When the moving shaft moves, it drives the limit plate to move, so that the first spring deforms to store elastic potential energy, and the elastic potential energy is released by the first spring to make the moving shaft reciprocate, so that the moving plate reciprocates relatively at the top of the scraper, grinding the material between the scraper and the moving plate, and the material is ground and filtered again by the filter screen for reuse;

[0021] S5: The material after filtering and impurity removal is discharged from the nozzle for printing.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1. The present invention sets a filtering component. When printing a bicycle seat cushion, the feeding structure and the heating module are started, and the raw material is pulled downward into the throat through the feeding structure. After the raw material is melted, it is discharged from the nozzle for printing. When the raw material enters the throat, the raw material passes through the filter screen to filter impurities, unreacted powder or solidified large particles contained in the melted material, thereby ensuring that the printed product has higher precision and better surface quality.

[0024] 2. The present invention sets a stirring component. When printing, the motor is started, the motor drives the rotating shaft to rotate, the rotation of the rotating shaft drives the rotation of the gear, the rotation of the gear drives the rotation of the ring gear, and the rotation of the ring gear drives the rotation of the scraper, so that the scraper stirs the material above the filter screen, which helps to speed up the flow speed of the material in the filter screen, which can not only increase the melting speed of the material, but also improve the filtration efficiency, thereby ensuring the continuity and stability of the printing process.

[0025] 3. The present invention arranges the grinding assembly. When stirring materials, the rotation of the ring gear drives the scraper and the movable plate to rotate. The rotation of the movable plate drives the movable shaft to move, so that the movable shaft slides on the inner wall of the guide ring. The movable plate slides on the top of the scraper through the guidance of the guide ring. When the movable shaft moves, it drives the limit plate to move, so that the first spring deforms to store elastic potential energy, and the elastic potential energy is released by the first spring to make the movable shaft move back and forth, so that the movable plate moves back and forth relative to the top of the scraper, which is helpful to grind the materials between the scraper and the movable plate, grind away the accumulated or agglomerated materials, and make them re-participate in the stirring process, thereby improving resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic cross-sectional view of the structure of the printing base of the present invention;

[0028] Figure 3 It is a schematic cross-sectional view of the throat structure of the present invention;

[0029] Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement in the middle;

[0030] Figure 5 It is a schematic cross-sectional view of the structure of the ring gear of the present invention;

[0031] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at B in the middle;

[0032] Figure 7 It is a schematic cross-sectional view of the structure of the scraper of the present invention;

[0033] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point C in the middle.

[0034] In the figure: 1. base; 2. load-bearing plate; 3. gantry; 4. cross frame; 5. printing base; 6. raw material; 7. reel frame; 8. feeding structure; 9. throat; 10. nozzle; 11. heating module; 12. filter; 13. scraper; 14. ring gear; 15. gear; 16. rotating shaft; 17. motor; 18. moving plate; 19. moving shaft; 20. guide ring; 21. limit plate; 22. first spring; 23. bump; 24. second spring; 25. fixed shaft; 26. bottom plate; 27. top plate; 28. connecting shaft; 29. ​​third spring. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figures 1 to 8As shown, in an embodiment of the present invention, a 3D printing device for a bicycle seat cushion comprises a base 1, a load-bearing plate 2 and a gantry 3 are installed on the top of the base 1, a cross frame 4 is installed on one side of the gantry 3, a side wall of the cross frame 4 is connected to a printing seat 5, the printing seat 5 is arranged above the load-bearing plate 2, a reel frame 7 is installed on the top of the gantry 3, a raw material 6 is arranged inside the reel frame 7, one end of the raw material 6 away from the reel frame 7 is embedded in the printing seat 5, a feeding structure 8, a throat 9 and a nozzle 10 are arranged inside the printing seat 5, a filter assembly is arranged inside the throat 9, and a heating module 11 is arranged outside the throat 9;

[0037] The filtering component includes a filter screen 12 arranged inside the throat 9, a stirring component is arranged at the top end of the filter screen 12, and a material-lifting component is arranged at the bottom end of the filter screen 12.

[0038] The feeding structure 8 and the heating module 11 are existing technical means, which will not be described in detail here.

[0039] When printing a bicycle seat cushion, the feeding structure 8 and the heating module 11 are started, and the raw material 6 is pulled downward into the throat 9 through the feeding structure 8, and the raw material 6 is melted and discharged from the nozzle 10 for printing;

[0040] When the raw material 6 enters the throat 9, the raw material 6 passes through the filter screen 12 to filter out impurities, unreacted powder or solidified large particles contained in the melted material, thereby ensuring that the printed product has higher precision and better surface quality.

[0041] like Figures 1 to 5 As shown, the stirring assembly includes a scraper 13 arranged at the top of the filter 12, a grinding assembly is arranged at the top of the scraper 13, the scraper 13 is fixedly mounted inside the ring gear 14, the ring gear 14 is rotatably mounted inside the throat 9, one side of the ring gear 14 is meshedly connected with a gear 15, a rotating shaft 16 is fixedly mounted on the inner wall of the gear 15, and a motor 17 is installed at the top of the rotating shaft 16.

[0042] When printing, start the motor 17, the motor 17 drives the rotating shaft 16 to rotate, the rotation of the rotating shaft 16 drives the rotation of the gear 15, the rotation of the gear 15 drives the rotation of the ring gear 14, and the rotation of the ring gear 14 drives the rotation of the scraper 13, so that the scraper 13 stirs the material above the filter screen 12, which helps to speed up the flow speed of the material in the filter screen 12, which can not only increase the melting speed of the material, but also improve the filtration efficiency, thereby ensuring the continuity and stability of the printing process.

[0043] like Figure 5 , Figure 6 and Figure 7 As shown, the side wall of the scraper 13 is inclined.

[0044] When the material is stirred, the material on the surface of the filter screen 12 can be scooped up to reduce the resistance during the filtering process and promote the continuity of the printing process.

[0045] like Figure 6 , Figure 7 and Figure 8 As shown, the grinding assembly includes a movable plate 18 arranged at the top of the scraper 13, one end of the movable plate 18 is fixedly connected to a movable shaft 19, the outer wall of the movable shaft 19 is fixedly connected to a limit plate 21, the limit plate 21 is slidably installed inside the ring gear 14, a first spring 22 is arranged between the limit plate 21 and the ring gear 14, a guide ring 20 is arranged on the top of the ring gear 14, the guide ring 20 is fixedly installed inside the throat 9, and the inner wall of the guide ring 20 is slidably connected to the movable shaft 19.

[0046] When stirring materials, the rotation of the ring gear 14 drives the scraper 13 and the moving plate 18 to rotate. The rotation of the moving plate 18 drives the moving shaft 19 to move, so that the moving shaft 19 slides on the inner wall of the guide ring 20. The moving plate 18 slides on the top of the scraper 13 through the guidance of the guide ring 20. When the moving shaft 19 moves, it drives the limit plate 21 to move, so that the first spring 22 is deformed to store elastic potential energy, and the elastic potential energy is released by the first spring 22 to make the moving shaft 19 move back and forth, so that the moving plate 18 moves back and forth relative to the top of the scraper 13, which helps to grind the material between the scraper 13 and the moving plate 18, grind the accumulated or agglomerated materials, and make them re-participate in the stirring process, thereby improving resource utilization.

[0047] like Figure 5 and Figure 6 As shown, the moving plate 18 is slidably mounted inside the ring gear 14 .

[0048] like Figure 5 , Figure 6 and Figure 7 As shown, both the inner wall of the moving plate 18 and the outer wall of the scraper plate 13 are provided with protrusions 23, and the protrusions 23 are evenly distributed.

[0049] Increasing the friction between the moving plate 18 and the scraper 13 helps to grind the material.

[0050] like Figure 7 and Figure 8 As shown, the protrusion 23 is fixedly connected to the ring gear 14 , the protrusion 23 is slidably connected to the scraper 13 , and a second spring 24 is installed between the protrusion 23 and the scraper 13 .

[0051] The protrusion 23 inside the scraper 13 has a certain elastic potential energy, which helps to maintain the stability of the grinding process and improve the grinding accuracy and surface quality.

[0052] like Figure 5 and Figure 7 As shown, the top material assembly includes a top material plate 27 arranged at the bottom end of the filter screen 12, a bottom plate 26 is arranged at the bottom of the top material plate 27, the bottom plate 26 and the top material plate 27 are connected by a connecting shaft 28, a fixed shaft 25 is fixedly installed on one side of the bottom plate 26, and the fixed shaft 25 passes through the inner wall of the filter screen 12 and is fixedly installed at the bottom end of the scraper 13.

[0053] The ejector plate 27 is arranged at the front side of the scraper 13 in the rotation direction;

[0054] When the scraper 13 rotates, it drives the fixed shaft 25 to rotate inside the filter 12. The rotation of the fixed shaft 25 causes the bottom plate 26 to rotate. The rotation of the bottom plate 26 drives the rotation of the top plate 27, so that the top plate 27 pushes the filter 12 upward, which not only helps the scraper 13 to scoop up the material, but also prevents the filter 12 from being blocked, thereby improving the filtering efficiency.

[0055] like Figure 7 As shown, third springs 29 are arranged between the bottom plate 26 and the top plate 27, and the third springs 29 are evenly distributed.

[0056] The elastic potential energy of the third spring 29 enables the ejector plate 27 to always maintain a tendency to eject materials, and allows the ejector plate 27 to float up and down a certain distance, thereby reducing direct impact on the filter screen 12 and extending the service life of the filter screen 12.

[0057] A printing method of a 3D printing device for a bicycle seat cushion comprises the following steps:

[0058] S1: When printing a bicycle seat cushion, the feeding structure 8 and the heating module 11 are started, the raw material 6 is pulled downward into the throat 9 through the feeding structure 8, and the material is melted through the heating module 11;

[0059] S2: The melted material is filtered through the filter screen 12 to remove impurities contained therein, and the motor 17 is started at the same time. The motor 17 drives the rotating shaft 16 to rotate, and the rotation of the rotating shaft 16 drives the rotation of the gear 15. The rotation of the gear 15 drives the rotation of the ring gear 14. The rotation of the ring gear 14 drives the rotation of the scraper 13 and the moving plate 18, so that the scraper 13 stirs the material above the filter screen 12 to improve the filtering efficiency;

[0060] S3: When the scraper 13 rotates, it drives the fixed shaft 25 to rotate inside the filter screen 12. The rotation of the fixed shaft 25 drives the rotation of the bottom plate 26. The rotation of the bottom plate 26 drives the rotation of the top plate 27, so that the top plate 27 pushes the filter screen 12 upward, and the auxiliary scraper 13 scoops up the material, so that part of the material is guided to the inside of the moving plate 18 through the scraper 13;

[0061] S4: When the moving plate 18 rotates, the moving shaft 19 is driven to move, so that the moving shaft 19 slides on the inner wall of the guide ring 20, and the moving plate 18 slides on the top of the scraper 13 through the guidance of the guide ring 20. When the moving shaft 19 moves, the limiting plate 21 is driven to move, so that the first spring 22 is deformed to store elastic potential energy, and the elastic potential energy is released by the first spring 22 to make the moving shaft 19 reciprocate, so that the moving plate 18 reciprocates relatively at the top of the scraper 13, grinding the material between the scraper 13 and the moving plate 18, and the material is ground and filtered again by the filter screen 12 for use;

[0062] S5: The material after filtering and impurity removal is discharged from the nozzle 10 for printing.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A 3D printing device for a bicycle seat, comprising a base (1), characterized in that: A bearing plate (2) and a gantry (3) are installed at the top of the base (1); a cross frame (4) is installed on one side of the gantry (3); a side wall of the cross frame (4) is connected to a printing seat (5); the printing seat (5) is arranged above the bearing plate (2); a reel frame (7) is installed at the top of the gantry (3); a raw material (6) is arranged inside the reel frame (7); an end of the raw material (6) away from the reel frame (7) is embedded in the printing seat (5); a feeding structure (8), a throat (9) and a nozzle (10) are arranged inside the printing seat (5); a filter assembly is arranged inside the throat (9); and a heating module (11) is arranged outside the throat (9); The filtering assembly comprises a filter screen (12) arranged inside the throat (9), a stirring assembly is arranged at the top end of the filter screen (12), and a material-lifting assembly is arranged at the bottom end of the filter screen (12).

2. A 3D printing device for a bicycle seat according to claim 1, characterized in that: The stirring assembly comprises a scraper (13) arranged at the top of the filter (12), a grinding assembly is arranged at the top of the scraper (13), the scraper (13) is fixedly mounted inside a ring gear (14), the ring gear (14) is rotatably mounted inside a throat (9), one side of the ring gear (14) is meshedly connected with a gear (15), a rotating shaft (16) is fixedly mounted on the inner wall of the gear (15), and a motor (17) is mounted at the top of the rotating shaft (16).

3. The 3D printing device for a bicycle seat according to claim 2, characterized in that: The side wall of the scraper (13) is arranged obliquely.

4. The 3D printing device for a bicycle seat according to claim 2, characterized in that: The grinding assembly comprises a movable plate (18) arranged at the top of the scraper (13), one end of the movable plate (18) is fixedly connected to a movable shaft (19), the outer wall of the movable shaft (19) is fixedly connected to a limit plate (21), the limit plate (21) is slidably mounted inside the ring gear (14), a first spring (22) is arranged between the limit plate (21) and the ring gear (14), a guide ring (20) is arranged on the top of the ring gear (14), the guide ring (20) is fixedly mounted inside the throat (9), and the inner wall of the guide ring (20) is slidably connected to the movable shaft (19).

5. The 3D printing device for a bicycle seat according to claim 4, characterized in that: The moving plate (18) is slidably mounted inside the ring gear (14).

6. The 3D printing device for a bicycle seat according to claim 4, characterized in that: The inner wall of the movable plate (18) and the outer wall of the scraper (13) are both provided with protrusions (23), and the protrusions (23) are evenly distributed.

7. The 3D printing device for a bicycle seat according to claim 6, characterized in that: The protrusion (23) is fixedly connected to the ring gear (14), the protrusion (23) is slidably connected to the scraper (13), and a second spring (24) is installed between the protrusion (23) and the scraper (13).

8. The 3D printing device for a bicycle seat according to claim 1, characterized in that: The lifting material assembly comprises a lifting material plate (27) arranged at the bottom end of the filter screen (12), a bottom plate (26) is arranged at the bottom of the lifting material plate (27), the bottom plate (26) and the lifting material plate (27) are connected via a connecting shaft (28), a fixed shaft (25) is fixedly installed on one side of the bottom plate (26), and the fixed shaft (25) passes through the inner wall of the filter screen (12) and is fixedly installed at the bottom end of the scraper (13).

9. The 3D printing device for a bicycle seat according to claim 8, characterized in that: A third spring (29) is arranged between the bottom plate (26) and the top plate (27), and the third springs (29) are evenly distributed.

10. A printing method for a 3D printing device for a bicycle seat cushion, the method being applicable to a 3D printing device for a bicycle seat cushion as claimed in claims 1 to 9, characterized in that: The following steps are involved: S1: When printing a bicycle seat cushion, the feeding structure (8) and the heating module (11) are started, the raw material (6) is pulled downward into the throat (9) through the feeding structure (8), and the material is melted through the heating module (11); S2: The melted material is filtered through the filter screen (12) to remove impurities contained therein, and the motor (17) is started at the same time. The motor (17) drives the rotating shaft (16) to rotate. The rotation of the rotating shaft (16) drives the gear (15) to rotate. The rotation of the gear (15) drives the ring gear (14) to rotate. The rotation of the ring gear (14) drives the scraper (13) and the moving plate (18) to rotate, so that the scraper (13) stirs the material above the filter screen (12) to improve the filtering efficiency. S3: When the scraper (13) rotates, it drives the fixed shaft (25) to rotate inside the filter (12). The rotation of the fixed shaft (25) drives the bottom plate (26) to rotate. The rotation of the bottom plate (26) drives the push plate (27) to rotate, so that the push plate (27) pushes the filter (12) upward, and the scraper (13) assists in scooping up the material, so that part of the material is guided to the inside of the moving plate (18) through the scraper (13); S4: When the moving plate (18) rotates, the moving shaft (19) is driven to move, so that the moving shaft (19) slides on the inner wall of the guide ring (20), and the moving plate (18) slides on the top of the scraper (13) through the guidance of the guide ring (20). When the moving shaft (19) moves, the limiting plate (21) is driven to move, so that the first spring (22) is deformed to store elastic potential energy, and the elastic potential energy is released by the first spring (22) to make the moving shaft (19) move back and forth, so that the moving plate (18) moves back and forth relative to the top of the scraper (13), grinding the material between the scraper (13) and the moving plate (18), and the material is ground and filtered through the filter (12) again for use; S5: The material after filtering and impurity removal is discharged from the nozzle (10) for printing.

Images