3D printer with waste wiping nozzle mechanism

Abstract

The invention relates to the technical field of 3D printers, and discloses a 3D printer with a waste wiping nozzle mechanism, which comprises a square column, a moving mechanism arranged on the outer side of the square column, a supporting table arranged on the top of the square column, an operating mechanism arranged on the top of the supporting table, a printing nozzle arranged on one side of the operating mechanism, and a cleaning mechanism arranged on one side of the printing nozzle, the connecting arm is fixedly connected to the outer side of the printing nozzle, a fixing groove is fixedly connected to the inner side of the connecting arm, a plate frame is fixedly connected to the outer side of the fixing groove, and a third motor is fixedly connected to the inner side of the plate frame. According to the printing device, the cleaning mechanism is arranged, a fixing sleeve can drive a cleaning block to move downwards through a supporting box, and the cleaning block can be pushed to be stably attached to the outer side of the printing spray head under the elastic action of a spring, so that the cleaning block can clean the outer side of the printing spray head, the purpose of discharging waste is achieved, and further printing work is facilitated; meanwhile, manual operation is not needed, and good operation efficiency can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printers, and specifically provides a 3D printer with a waste wiping mechanism for the nozzle. Background Art

[0002] A 3D printer, also known as a three-dimensional printer, is a device that creates three-dimensional objects by adding materials layer by layer. Its working principle is similar to that of a traditional printer, but it uses materials that can be bonded, such as plastics, metal powders, etc., and finally forms a three-dimensional object by stacking layer by layer.

[0003] According to the 3D printer disclosed on the patent network (authorization announcement number: CN 215943698 U), it is described that "This application relates to the technical field of 3D printing, and discloses a 3D printer, including a 3D printer body. A U-shaped base is arranged below the 3D printer body. One end of the rotating shaft is located in the shaft hole, and the rotating shaft is rotatably connected to the hole wall of the shaft hole through a bearing. A first magnet ring is fixedly connected to the bottom of the 3D printer body, and a second magnet ring is fixedly connected to the upper side of the U-shaped base. It improves the convenience of the 3D printer's rotation and its dust-proof performance."

[0004] Based on the above content, the inventor believes that there are the following defects: During the use of this 3D printer, it lacks the function of cleaning waste from the print nozzle. Therefore, it is very necessary to design a 3D printer with a waste wiping mechanism for the nozzle that is highly practical and easy to clean. Summary of the Invention

[0005] The purpose of the present invention is to provide a 3D printer with a waste wiping mechanism for the nozzle to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A 3D printer with a waste wiping mechanism for the nozzle, including a square column. A moving mechanism is arranged on the outer side of the square column. A support platform is arranged at the top of the square column. An operating mechanism is arranged on the top of the support platform. A cleaning mechanism is arranged on one side of the operating mechanism. The cleaning mechanism includes a connecting arm, which is fixedly connected to the outside of the printing nozzle. A fixed groove is fixedly connected to the inner side of the connecting arm. A plate frame is fixedly connected to the outside of the fixed groove. A motor three is fixedly connected to the inner side of the plate frame. A worm is fixedly connected to the output end of the motor three. A worm gear is meshed with the outer wall of the worm. A support rod is fixedly connected to the inner ring of the worm gear. A movable plate is fixedly connected to the outer wall of the support rod. A push shaft is fixedly connected to the inside of the movable plate. A moving block is arranged on the outer wall of the push shaft. A convex block is fixedly connected to the outside of the moving block. A connecting column is fixedly connected to one side of the moving block. A fixed sleeve is fixedly connected to one side of the connecting column. A support box is fixedly connected to the inside of the fixed sleeve. A spring is fixedly connected to the inner wall of the support box. One end of the spring away from the inner wall of the support box is fixedly connected to a sliding plate. A support column is fixedly connected to the side of the sliding plate away from the spring. A cleaning block is fixedly connected to the side of the support column away from the sliding plate.

[0007] According to the above technical solution, a notch is formed inside the moving block. The push shaft is movably connected to the inner wall of the notch. The outer shape of the convex block matches the inner wall shape of the fixed groove. The convex block is slidably connected to the inner wall of the fixed groove, so that the push shaft can push the moving block to move through the notch.

[0008] According to the above technical solution, a first rotating hole is formed inside the plate frame. The worm passes through the first rotating hole and rotates. A second rotating hole is formed inside the plate frame. The support rod passes through the second rotating hole and rotates, stably supporting the support rod and the worm.

[0009] According to the above technical solution, a through hole is formed on one side of the support box. The support column passes through the through hole and moves. The sliding plate is slidably connected to the inner wall of the support box. The inner side of the cleaning block is in close contact with the outer side of the printing nozzle, facilitating the cleaning block to better clean the waste generated by the printing nozzle.

[0010] According to the above technical solution, the operating mechanism includes a first support seat, which is fixedly connected to the top of the support table. A motor one is fixedly connected to one side of the first support seat. A first threaded rod is fixedly connected to the output end of the motor one. A first threaded block is threadedly connected to the outer wall of the first threaded rod. A motor two is fixedly connected to one side of the first threaded block. A second threaded rod is fixedly connected to the output end of the motor two. A third support seat is fixedly connected to the top of the support table. A second sliding shaft is fixedly connected to the inside of the third support seat. A third sliding shaft is fixedly connected to the inside of the first support seat. A second threaded block is threadedly connected to the outer wall of the second threaded rod. A limiting block is arranged on the outer wall of the second sliding shaft. A second support seat is fixedly connected to the top of the support table. A first sliding shaft is fixedly connected to the inside of the first threaded block, facilitating the adjustment of the processing position of the printing nozzle.

[0011] According to the above technical solution, a third rotating hole is provided inside the second support seat, the first threaded rod is rotatably connected to the inner wall of the third rotating hole, and the third sliding shaft is fixedly connected to one side of the second support seat to stably support the first threaded rod.

[0012] According to the above technical solution, a first sliding hole is provided inside the first threaded block, the first threaded block is slidably connected to the outer wall of the third sliding shaft through the first sliding hole, a second sliding hole is provided inside the limiting block, and the limiting block is slidably connected to the outer wall of the second sliding shaft through the third sliding hole, so that the first threaded block and the limiting block can move stably.

[0013] According to the above technical solution, a third sliding hole is provided inside the second threaded block, the second threaded block is slidably connected to the outer wall of the first sliding shaft through the third sliding hole, the third sliding shaft is fixedly connected to one side of the second support seat, the second threaded rod is rotatably connected to one side of the limiting block, and both ends of the first sliding shaft are fixedly connected to the inner sides of the first threaded block and the limiting block to stably support the second threaded rod and the first sliding shaft.

[0014] According to the above technical solution, the moving mechanism includes a support arm, the support arm is fixedly connected to the outside of the square column, a rectangular box is fixedly connected to the side of the support arm away from the square column, a third threaded rod is threadedly connected to the top of the rectangular box, the bottom end of the third threaded rod is rotatably connected to a rectangular plate, a fixed column is fixedly connected to the bottom of the rectangular plate, a pressing plate is fixedly connected to the bottom of the fixed column, and a self-locking universal wheel is fixedly connected to the bottom of the square column, which is convenient to achieve the purpose of stable movement of the device.

[0015] According to the above technical solution, there are four pressing plates, anti-slip patterns are provided at the bottoms of the four pressing plates, a hand wheel is fixedly connected to the top end of the third threaded rod, the rectangular plate is slidably connected to the inner wall of the rectangular box, and a rectangular opening is provided at the bottom of the rectangular box, and the fixed column passes through the rectangular opening, so that the fixed column can move through the rectangular opening.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: 1. In the present invention, by providing a cleaning mechanism, the fixed sleeve can drive the cleaning block to move downward through the support box, and under the elastic action of the spring, the cleaning block will be pushed to stably fit the outside of the printing nozzle, so that the cleaning block can clean the outside of the printing nozzle, achieving the purpose of discharging waste materials, facilitating the further development of printing work, and at the same time, manual operation is not required, and good operation efficiency can be achieved.

[0017] 2. In the present invention, by providing an operating mechanism, the output end of the second motor can drive the second threaded rod to rotate. Since the second threaded rod and the second threaded block are in threaded connection, and the second threaded block can slide and be limited on the outer wall of the first sliding shaft, the rotational motion of the second threaded rod will be converted into the linear motion of the second threaded block. The second threaded block can drive the printing nozzle to move back and forth, thereby achieving the purpose of flexible movement of the printing nozzle, and the position of the printing nozzle can be adjusted according to different processing requirements, enhancing the flexibility of the device.

[0018] 3. In the present invention, by providing a moving mechanism, the rectangular plate can slide and be limited on the inner wall of the rectangular box, so the third threaded rod can push the rectangular plate to move downward. The rectangular plate can drive the fixed column to move downward, and the fixed column can drive the pressing plate to move downward, making the bottom of the pressing plate contact the ground. Furthermore, the contact surface between the device and the ground can be ensured, and while achieving movement, good stability can also be achieved, so that the device will not easily shake or shift during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings: Figure 1 is the front view of the structure of the present invention; Figure 2 is the left view of the structure of the present invention; Figure 3 is the right view of the structure of the present invention; Figure 4 is the bottom view of the structure of the present invention; Figure 5 is the schematic diagram of the structure at the printing nozzle; Figure 6 is Figure 4 the enlarged schematic diagram of the structure at A in Figure 7 is Figure 5 the enlarged schematic diagram of the structure at B in Figure 8 is Figure 5 the enlarged schematic diagram of the structure at C in In the figure: 1, square column; 2, support platform; 3, cleaning mechanism; 31, connecting arm; 32, fixed slot; 33, plate frame; 34, motor three; 35, worm; 36, worm wheel; 37, support rod; 38, movable plate; 39, push shaft; 301, moving block; 302, convex block; 303, connecting column; 304, fixed sleeve; 305, support box; 306, spring; 307, slide plate; 308, support column; 309, cleaning block; 4, operating mechanism; 41, support seat one; 42, motor one; 43, threaded rod one; 44, support seat two; 45, threaded block one; 46, support seat three; 47, slide shaft two; 48, motor two; 49, threaded rod two; 401, threaded block two; 402, slide shaft one; 403, limit block; 404, slide shaft three; 5, moving mechanism; 51, support arm; 52, rectangular box; 53, threaded rod three; 54, rectangular plate; 55, fixed column; 56, pressing plate; 57, self-locking universal wheel; 6, printing nozzle. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] The present invention provides the following technical solutions: Embodiment 1

[0022] Combined with Figures 1 to 8 , a 3D printer with a waste wiping nozzle mechanism, including a square column 1, a moving mechanism 5 is arranged outside the square column 1, a support platform 2 is arranged at the top of the square column 1, an operating mechanism 4 is arranged on the top of the support platform 2, a printing nozzle 6 is arranged on one side of the operating mechanism 4, and a cleaning mechanism 3 is arranged on one side of the printing nozzle 6; The cleaning mechanism 3 includes a connecting arm 31. The connecting arm 31 is fixedly connected to the outside of the printing nozzle 6. Inside the connecting arm 31, there is a fixed groove 32 fixedly connected. Outside the fixed groove 32, there is a plate frame 33 fixedly connected. Inside the plate frame 33, there is a motor three 34 fixedly connected. The output end of the motor three 34 is fixedly connected with a worm 35. A worm gear 36 is engaged with the outer wall of the worm 35. Inside the worm gear 36, there is a support rod 37 fixedly connected. On the outer wall of the support rod 37, there is a movable plate 38 fixedly connected. Inside the movable plate 38, there is a push shaft 39 fixedly connected. On the outer wall of the push shaft 39, there is a moving block 301. On the outside of the moving block 301, there is a convex block 302 fixedly connected. On one side of the moving block 301, there is a connecting column 303 fixedly connected. On one side of the connecting column 303, there is a fixed sleeve 304 fixedly connected. Inside the fixed sleeve 304, there is a support box 305 fixedly connected. Inside the inner wall of the support box 305, there is a spring 306 fixedly connected. One end of the spring 306 far from the inner wall of the support box 305 is fixedly connected with a sliding plate 307. On the side of the sliding plate 307 far from the spring 306, there is a support column 308 fixedly connected. On the side of the support column 308 far from the sliding plate 307, there is a cleaning block 309 fixedly connected.

[0023] Further, a notch is formed inside the moving block 301. The push shaft 39 is movably connected to the inner wall of the notch. The outer shape of the convex block 302 matches the inner wall shape of the fixed groove 32. The convex block 302 is slidably connected to the inner wall of the fixed groove 32, so that the push shaft 39 can push the moving block 301 to move through the notch.

[0024] Further, a first rotating hole is formed inside the plate frame 33. The worm 35 passes through the first rotating hole and rotates. A second rotating hole is formed inside the plate frame 33. The support rod 37 passes through the second rotating hole and rotates, stably supporting the support rod 37 and the worm 35.

[0025] Further, a through hole is formed on one side of the support box 305. The support column 308 passes through the through hole and moves. The sliding plate 307 is slidably connected to the inner wall of the support box 305. The inner side of the cleaning block 309 is in close contact with the outer side of the printing nozzle 6, facilitating the cleaning block 309 to better clean the waste generated by the printing nozzle 6. Embodiment 2

[0026] Refer to Figures 1 to 8, and on the basis of Embodiment 1, it is further obtained that the operating mechanism 4 includes a first support base 41. The first support base 41 is fixedly connected to the top of the support table 2. A first motor 42 is fixedly connected to one side of the first support base 41. The output end of the first motor 42 is fixedly connected to a first threaded rod 43. A first threaded block 45 is threadedly connected to the outer wall of the first threaded rod 43. A second motor 48 is fixedly connected to one side of the first threaded block 45. The output end of the second motor 48 is fixedly connected to a second threaded rod 49. A third support base 46 is fixedly connected to the top of the support table 2. A second sliding shaft 47 is fixedly connected to the inside of the third support base 46. A third sliding shaft 404 is fixedly connected to the inside of the first support base 41. A second threaded block 401 is threadedly connected to the outer wall of the second threaded rod 49. A limiting block 403 is arranged on the outer wall of the second sliding shaft 47. A second support base 44 is fixedly connected to the top of the support table 2. A first sliding shaft 402 is fixedly connected to the inside of the first threaded block 45, which facilitates the adjustment of the processing position of the printing nozzle 6.

[0027] Further, a third rotating hole is formed inside the second support base 44. The first threaded rod 43 is rotatably connected to the inner wall of the third rotating hole. The third sliding shaft 404 is fixedly connected to one side of the second support base 44 to stably support the first threaded rod 43.

[0028] Further, a first sliding hole is formed inside the first threaded block 45. The first threaded block 45 is slidably connected to the outer wall of the third sliding shaft 404 through the first sliding hole. A second sliding hole is formed inside the limiting block 403. The limiting block 403 is slidably connected to the outer wall of the second sliding shaft 47 through the third sliding hole, so that the first threaded block 45 and the limiting block 403 can move stably.

[0029] Further, a third sliding hole is formed inside the second threaded block 401. The second threaded block 401 is slidably connected to the outer wall of the first sliding shaft 402 through the third sliding hole. The third sliding shaft 404 is fixedly connected to one side of the second support base 44. The second threaded rod 49 is rotatably connected to one side of the limiting block 403. Both ends of the first sliding shaft 402 are fixedly connected to the inside of the first threaded block 45 and the limiting block 403 respectively to stably support the second threaded rod 49 and the first sliding shaft 402. Embodiment 3

[0030] Refer to Figures 1 to 8 , and on the basis of Embodiment 1 and Embodiment 2, it is further obtained that the moving mechanism 5 includes a support arm 51. The support arm 51 is fixedly connected to the outside of the square column 1. A rectangular box 52 is fixedly connected to the side of the support arm 51 away from the square column 1. A third threaded rod 53 is threadedly connected to the top of the rectangular box 52. The bottom end of the third threaded rod 53 is rotatably connected to a rectangular plate 54. A fixed column 55 is fixedly connected to the bottom of the rectangular plate 54. A pressing plate 56 is fixedly connected to the bottom of the fixed column 55. A self-locking universal wheel 57 is fixedly connected to the bottom of the square column 1, which facilitates the stable movement of the device.

[0031] Further, there are four pressing plates 56, and anti-slip patterns are provided at the bottoms of the four pressing plates 56. The top end of the third threaded rod 53 is fixedly connected with a handwheel. The rectangular plate 54 is slidably connected to the inner wall of the rectangular box 52. A rectangular opening is formed at the bottom of the rectangular box 52, and the fixed column 55 passes through the rectangular opening, so that the fixed column 55 can move through the rectangular opening.

[0032] During the actual operation process, when this device is used, first, the purpose of moving the device can be achieved through the self-locking universal wheels 57. At the same time, after moving the device to a suitable position, the self-locking universal wheels 57 can play a role in preliminary limiting and self-locking. Then, the handwheel can be shaken to drive the rotation of the third threaded rod 53. Since the third threaded rod 53 is threadedly connected to the rectangular box 52, and the rectangular plate 54 can be slidably limited on the inner wall of the rectangular box 52, the third threaded rod 53 will push the rectangular plate 54 downward. The rectangular plate 54 can drive the fixed column 55 downward, and the fixed column 55 can drive the pressing plate 56 downward, so that the bottom of the pressing plate 56 contacts the ground. Furthermore, the contact surface between the device and the ground can be ensured. While achieving movement, good stability can also be achieved, so that the device will not easily shake or shift during use.

[0033] Start the first motor 42 to work. The output end of the first motor 42 can drive the rotation of the first threaded rod 43. Since the first threaded rod 43 is threadedly connected to the first threaded block 45, and the first threaded block 45 can be slidably limited on the outer wall of the third sliding shaft 404, the rotational movement of the first threaded rod 43 will be converted into the linear movement of the first threaded block 45. The first threaded block 45 can drive the second motor 48 to move, so as to achieve the purpose of moving the printing nozzle 6 left and right. Start the second motor 48 to work. The output end of the second motor 48 can drive the rotation of the second threaded rod 49. Since the second threaded rod 49 is threadedly connected to the second threaded block 401, and the second threaded block 401 can be slidably limited on the outer wall of the first sliding shaft 402, the rotational movement of the second threaded rod 49 will be converted into the linear movement of the second threaded block 401. The second threaded block 401 can drive the printing nozzle 6 to move back and forth, so as to achieve the purpose of flexible movement of the printing nozzle 6. The position of the printing nozzle 6 can be adjusted according to different processing requirements, enhancing the flexibility of the device.

[0034] The starting motor three 34 operates, and the output end of the motor three 34 can drive the worm 35 to rotate. Since the worm 35 and the worm gear 36 are in a meshing relationship, the worm gear 36 will drive the support rod 37 to rotate. The support rod 37 can drive the movable plate 38 to rotate along the axis point of the support rod 37. The movable plate 38 can push the moving block 301 to move through the push shaft 39. Since the support rod 37 is in a continuous rotation state, the moving block 301 will move up and down reciprocally. At the same time, during the movement of the moving block 301, it will also drive the convex block 302 to slide and be limited on the inner wall of the fixed groove 32. When the moving block 301 moves downward, it will also drive the fixed sleeve 304 to move through the connecting column 303. The fixed sleeve 304 can drive the cleaning block 309 to move downward through the support box 305. Under the elastic action of the spring 306, it will push the cleaning block 309 to stably fit the outside of the print head 6. Thus, the cleaning block 309 can clean the outside of the print head 6, achieving the purpose of discharging waste materials, facilitating the further development of the printing work, and at the same time not requiring manual operation, which can achieve good operation efficiency.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0036] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A 3D printer with a waste wiping nozzle mechanism, comprising a square column (1), characterized in that: A moving mechanism (5) is arranged on the outside of the square column (1); a support platform (2) is arranged on the top of the square column (1); an operating mechanism (4) is arranged on the top of the support platform (2); a printing head (6) is arranged on one side of the operating mechanism (4); and a cleaning mechanism (3) is arranged on one side of the printing head (6); The cleaning mechanism (3) comprises a connecting arm (31), wherein the connecting arm (31) is fixedly connected to the outside of the print head (6), the connecting arm (31) is fixedly connected to a fixing groove (32) on the inside, the fixing groove (32) is fixedly connected to a plate frame (33) on the outside, the plate frame (33) is fixedly connected to a motor three (34) on the inside, the output end of the motor three (34) is fixedly connected to a worm (35), the outer wall of the worm (35) is meshed with a worm wheel (36), the inner ring of the worm wheel (36) is fixedly connected to a support rod (37), the outer wall of the support rod (37) is fixedly connected to a movable plate (38), the inside of the movable plate (38) is fixedly connected to a push shaft (39), and the outer wall of the push shaft (39) is provided with a movable A block (301) is fixedly connected to the outer side of the moving block (301) with a protrusion (302), a connecting column (303) is fixedly connected to one side of the moving block (301), a fixing sleeve (304) is fixedly connected to one side of the connecting column (303), a supporting box (305) is fixedly connected to the inside of the fixing sleeve (304), a spring (306) is fixedly connected to the inner wall of the supporting box (305), an end of the spring (306) away from the inner wall of the supporting box (305) is fixedly connected to a slide plate (307), a side of the slide plate (307) away from the spring (306) is fixedly connected to a supporting column (308), and a side of the support column (308) away from the slide plate (307) is fixedly connected to a cleaning block (309).

2. A 3D printer with a waste wiping nozzle mechanism according to claim 1, characterized in that: A notch is provided inside the movable block (301), the push shaft (39) is movably connected to the inner wall of the notch, the outer shape of the protrusion (302) matches the inner wall shape of the fixed groove (32), and the protrusion (302) is slidably connected to the inner wall of the fixed groove (32).

3. A 3D printer with a waste wiping nozzle mechanism according to claim 1, characterized in that: A first rotating hole is provided inside the plate frame (33), and the worm (35) passes through the first rotating hole and rotates; a second rotating hole is provided inside the plate frame (33), and the support rod (37) passes through the second rotating hole and rotates.

4. A 3D printer with a waste wiping nozzle mechanism according to claim 1, characterized in that: A through opening is provided on one side of the support box (305), the support column (308) passes through the through opening and moves, the slide plate (307) is slidably connected to the inner wall of the support box (305), and the inner side of the cleaning block (309) is in close contact with the outer side of the printing nozzle (6).

5. A 3D printer with a waste wiping nozzle mechanism according to claim 1, characterized in that: The operating mechanism (4) comprises a support seat 1 (41), the support seat 1 (41) being fixedly connected to the top of the support platform (2), a motor 1 (42) being fixedly connected to one side of the support seat 1 (41), a threaded rod 1 (43) being fixedly connected to the output end of the motor 1 (42), a threaded block 1 (45) being threadedly connected to the outer wall of the threaded rod 1 (43), a motor 2 (48) being fixedly connected to one side of the threaded block 1 (45), a threaded rod 2 (49) being fixedly connected to the output end of the motor 2 (48), and the The top of the support platform (2) is fixedly connected to a support seat three (46), the inner side of the support seat three (46) is fixedly connected to a sliding shaft two (47), the inner side of the support seat one (41) is fixedly connected to a sliding shaft three (404), the outer wall of the threaded rod two (49) is threadedly connected to a threaded block two (401), the outer wall of the sliding shaft two (47) is provided with a limit block (403), the top of the support platform (2) is fixedly connected to a support seat two (44), and the inner side of the threaded block one (45) is fixedly connected to a sliding shaft one (402).

6. A 3D printer with a waste wiping nozzle mechanism according to claim 5, characterized in that: A rotating hole three is provided inside the supporting seat two (44), the threaded rod one (43) is rotatably connected to the inner wall of the rotating hole three, and the sliding shaft three (404) is fixedly connected to one side of the supporting seat two (44).

7. A 3D printer with a waste wiping nozzle mechanism according to claim 5, characterized in that: A sliding hole 1 is provided inside the threaded block 1 (45), and the threaded block 1 (45) is slidably connected to the outer wall of the sliding shaft 3 (404) through the sliding hole 1. A sliding hole 2 is provided inside the limit block (403), and the limit block (403) is slidably connected to the outer wall of the sliding shaft 2 (47) through the sliding hole 3.

8. A 3D printer with a waste wiping nozzle mechanism according to claim 5, characterized in that: A sliding hole three is provided inside the threaded block two (401), and the threaded block two (401) is slidably connected to the outer wall of the sliding shaft one (402) through the sliding hole three. The sliding shaft three (404) is fixedly connected to one side of the support seat two (44), and the threaded rod two (49) is rotatably connected to one side of the limit block (403). The two ends of the sliding shaft one (402) are respectively fixedly connected to the threaded block one (45) and the inner side of the limit block (403).

9. A 3D printer with a waste wiping nozzle mechanism according to claim 1, characterized in that: The moving mechanism (5) comprises a support arm (51), the support arm (51) being fixedly connected to the outside of the square column (1), a rectangular box (52) being fixedly connected to the side of the support arm (51) away from the square column (1), a threaded rod three (53) being threadedly connected to the top of the rectangular box (52), a rectangular plate (54) being rotatably connected to the bottom of the threaded rod three (53), a fixed column (55) being fixedly connected to the bottom of the rectangular plate (54), a pressure plate (56) being fixedly connected to the bottom of the fixed column (55), and a self-locking universal wheel (57) being fixedly connected to the bottom of the square column (1).

10. A 3D printer with a waste wiping nozzle mechanism according to claim 9, characterized in that: Four pressing plates (56) are provided, and the bottoms of the four pressing plates (56) are all provided with anti-slip patterns. The top end of the threaded rod three (53) is fixedly connected to a hand wheel. The rectangular plate (54) is slidably connected to the inner wall of the rectangular box (52). The bottom of the rectangular box (52) is provided with a rectangular opening, and the fixing column (55) passes through the rectangular opening.

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