A 3D printer with a cleaning structure

Abstract

The present invention discloses a 3D printer with a cleaning structure, which relates to the technical field of 3D printer equipment, and comprises a frame, a bracket is fixedly connected to the middle position of the frame, a bottom plate is fixedly installed on the bracket, a docking sleeve is symmetrically fixedly installed on the frame, a support plate is fixedly connected to the top surface of the docking sleeve, a top plate is fixedly connected to the top of the support plate, and ears are fixedly connected to the two ends of the top plate, a pair of first shaft seats are fixedly connected to the outer side of the support plate, a first slide bar is fixedly connected between the pair of first shaft seats, and a pulley is slidably connected to the first slide bar. The present invention has a reasonable structure, and the printing components are placed by the carrier plate on the carrier assembly, and then the carrier plate is conveniently taken by the docking assembly. When cleaning the surface of the carrier plate, the scraper can be lifted to scrape off the attachments on the surface of the carrier plate.

Description

Technical Field

[0001] This invention relates to the field of 3D printer equipment technology, and in particular to a 3D printer with a cleaning structure. Background Technology

[0002] 3D printing is a method of representing three-dimensional models by combining layers of cross-sectional shapes. It involves stacking sheet-like cross-sectional shapes one by one to create a three-dimensional model. There are various modeling methods, and the differences between the methods lie in the materials used and the post-forming processing methods. Like regular printers, 3D printers also use nozzles to create cross-sectional shapes. There are two methods: directly spraying three-dimensional model materials (photocurable resin, wax) from the nozzle, and spraying adhesives to solidify powder materials.

[0003] When a 3D printer prints an object, a carrier plate is placed directly below the nozzle. The object is shaped on the carrier plate by the operation of the nozzle. However, during printing, printing material may splatter outside the forming area of ​​the carrier plate, requiring the entire carrier plate to be removed for cleaning. Since the carrier plate is mostly connected to the printer base by bolts, it is very inconvenient to remove and install the carrier plate, and it can easily delay the printer's subsequent printing efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a 3D printer with a cleaning structure, in which the printed part is placed on a carrier plate on a carrier assembly, and the carrier plate is easily removed by a docking assembly. When cleaning the surface of the carrier plate, the lifting of the frame facilitates the scraper to remove the adhering material on the surface of the carrier plate, in order to solve the problem that the carrier plate is not easy to disassemble and thus affects the subsequent cleaning work.

[0005] To achieve the above objectives, this application provides the following technical solution: A 3D printer with a cleaning structure includes a frame, a bracket fixedly connected to the middle of the frame, a base plate fixedly mounted on the bracket, docking sleeves symmetrically fixedly mounted on the frame, a support plate fixedly connected to the top surface of the docking sleeves, a top plate fixedly connected to the top of the support plate, lifting lugs fixedly connected to both ends of the top plate, a pair of first bearings fixedly connected to the outer side of the support plate, a first slide rod fixedly connected between the pair of first bearings, a pulley slidably connected to the first slide rod, the pulley rotatably connected to the equipment frame, the equipment frame slidably connected to the support plate, an adjustment frame mounted on the equipment frame, and a printer body mounted on the adjustment frame; it also includes a loading assembly, a docking assembly, and a scraping assembly, the loading assembly mounted on the base plate for use with the printer body, the docking assembly mounted on the loading assembly for printing processing, and the scraping assembly mounted on the base plate for use with the loading assembly.

[0006] Preferably, the loading assembly includes an adjustment box fixedly mounted on the base plate, a loading plate disposed on the adjustment box, a pair of second sliding rods fixedly connected inside the adjustment box, a sleeve slidably connected to the pair of second sliding rods, the sleeve being fixedly connected to a connector, a fixing seat being fixedly connected to the center of the top surface of the connector, a locking block being fixedly connected to the top of the fixing seat, the locking block being locked onto a trapezoidal plate, the trapezoidal plate being fixedly connected to a support column, and the support column being fixedly connected to the center of the bottom surface of the loading plate.

[0007] Preferably, a disc is fixedly connected to one side of the connector, and a plug rod is fixedly connected to the disc. The plug rod is inserted into the inside of the sleeve rod, and the other end of the sleeve rod is fixedly connected to the inner wall of the adjustment box. A return spring is sleeved on the plug rod, and the two ends of the return spring are fixedly connected to one side of the disc and one side of the sleeve rod, respectively.

[0008] Preferably, the docking assembly includes a driven rod fixedly installed on one side of the locking block, one end of the driven rod extending to the outside of the adjusting box, an L-shaped plate fixedly connected to one side of the driven rod, a hinge column fixedly connected to the L-shaped plate, a push plate rotatably connected to the hinge column, the other end of the push plate rotatably connected to a hinge seat, and the hinge seat fixedly connected to the adjusting plate.

[0009] Preferably, a slider is fixedly connected to the inner side of the adjustment plate, the slider is slidably connected to the guide rail, the guide rail is fixedly connected to the outer wall of the adjustment box, and a buckle plate is fixedly connected to the adjustment plate.

[0010] Preferably, the scraping assembly includes a pair of side plates fixedly installed on both sides of the top surface of the base plate. The pair of side plates are provided with guide grooves. A pair of second bearings are fixedly connected to both ends of the side plates. A third slide rod is fixedly connected between the pair of second bearings. A slide block is slidably connected to the third slide rod. A first spring is sleeved on the third slide rod. The two ends of the first spring are fixedly connected to one side of the second bearing and one side of the slide block, respectively.

[0011] Preferably, a sliding shaft is fixedly connected to one side of the slide block, one end of the sliding shaft is slidably connected to the inside of the guide groove, a docking seat is fixedly connected to the top surface of the slide block, a linkage plate is rotatably connected to the docking seat, and the other end of the linkage plate is rotatably connected to the frame.

[0012] Preferably, a pair of third bearing seats are fixedly connected to both sides of the frame, a guide rod is fixedly connected between the pair of third bearing seats, a sliding sleeve is slidably connected to the guide rod, a fixing member is fixedly connected to the sliding sleeve, and a pull plate is fixedly connected to the top of the fixing member.

[0013] Preferably, a pair of limiting rods are movably inserted into the pull plate, a retaining ring is fixedly connected to the top of the pair of limiting rods, a second spring is sleeved on the pair of limiting rods, the two ends of the second spring are fixedly connected to the bottom surface of the retaining ring and the top surface of the pull plate respectively, the bottom ends of the pair of limiting rods are fixedly connected to the limiting plate, and a scraper is fixedly connected to the bottom surface of the limiting plate.

[0014] Preferably, a handle is fixedly connected to the top center of the limiting plate, the top of the handle extends to the top of the pull plate, positioning rods are fixedly connected to the middle of both sides of the frame, and rotating plates are rotatably connected to the middle of both sides of the side plate. Several sets of slots are opened on the rotating plate, and the positioning rod is locked inside one of the slots.

[0015] In summary, the present invention has the following beneficial effects:

[0016] 1. The present invention has a reasonable structure. The bottom end of the carrying plate is fixedly connected to a support column, and the bottom end of the support column is fixedly connected to a trapezoidal plate. A locking block is set inside the adjustment box. The locking block is locked onto the trapezoidal plate by the elastic force of the plug rod, which facilitates the overall fixing of the carrying plate. During installation, the trapezoidal plate and the locking block are aligned. Then, by pressing down on the carrying plate, the locking block slides to both sides until the trapezoidal plate is locked between the locking blocks, which facilitates the installation of the carrying plate.

[0017] 2. In this invention, the disassembly of the carrying plate is performed by first pulling the buckle upward. The buckle is fixedly connected to the adjustment plate. The upward movement of the buckle causes the slider on the adjustment plate to slide on the guide rail. Hinges are fixedly connected to both sides of the adjustment plate, and push plates are rotatably connected to the hinges. The other end of the push plate is rotatably connected to the hinge post of the L-shaped plate. The upward movement of the adjustment plate pushes the L-shaped plate to open to both sides through the push plate, so that the L-shaped plate can move by pulling the locking block through the driven rod, so that the locking block can be disengaged from both sides of the trapezoidal plate, thus making it easy to pick up the entire carrying plate.

[0018] 3. In this invention, when cleaning the attachments on the surface of the carrying plate, the rotating plate is rotated to disengage the handle from the slot. Then, the entire frame moves upward by the elastic force of the first spring, which facilitates the sliding shaft to move to the periphery of the carrying plate. Then, the scraper is pushed, and the sliding sleeve slides on the guide rod, which facilitates the movement of the entire pulling plate. The movement of the pulling plate facilitates the scraper at the bottom of the limiting plate to scrape off the attachments on the surface of the carrying plate, thus facilitating the cleaning of the attachments on the surface of the carrying plate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the three-dimensional frame structure;

[0021] Figure 2 This is a side view of the three-dimensional structure of the frame;

[0022] Figure 3 This is a schematic diagram of the frame's three-dimensional structure viewed from below.

[0023] Figure 4 A schematic diagram of the three-dimensional structure of the carrier plate viewed from below;

[0024] Figure 5 This is a schematic diagram of a partial cross-sectional three-dimensional structure of the loading plate.

[0025] Figure 6 This is a schematic diagram of the internal three-dimensional structure of the adjustment box;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the frame;

[0027] Figure 8 for Figure 7 Enlarged structural diagram at point A in the middle.

[0028] In the diagram: 1. Frame; 101. Bracket; 102. Base plate; 103. Connecting sleeve; 104. Support plate; 105. Top plate; 106. Lifting lug; 107. First bearing seat; 108. First slide rod; 109. Pulley; 110. Equipment frame; 112. Adjusting frame; 113. Printer body; 2. Adjusting box; 201. Loading plate; 202. Second slide rod; 203. Sleeve; 204. Connector; 205. Fixed seat; 206. Locking block; 207. Trapezoidal plate; 208. Support column; 209. Disc; 210. Insert rod; 211. Sleeve rod; 212. Return spring; 3. Driven rod; 301. L-shaped plate; 302. Hinge column; 3 03. Push plate; 304. Hinge seat; 305. Adjusting plate; 306. Slider; 307. Guide rail; 308. Buckle plate; 4. Side plate; 401. Guide groove; 402. Second shaft seat; 403. Third slide rod; 404. Slide seat; 405. First spring; 406. Slide shaft; 407. Connecting seat; 408. Linkage plate; 409. Frame; 410. Third shaft seat; 411. Guide rod; 412. Sliding sleeve; 413. Fixing component; 414. Pull plate; 5. Limiting rod; 501. Retaining ring; 502. Second spring; 503. Limiting plate; 504. Scraper; 505. Handle; 506. Positioning rod; 507. Rotating plate; 508. Slot. Detailed Implementation

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0030] Example: Reference Figure 1 - Figure 8The 3D printer shown includes a cleaning structure, comprising a frame 1, a bracket 101 fixedly connected to the middle of the frame 1, a base plate 102 fixedly mounted on the bracket 101, symmetrically fixedly mounted docking sleeves 103 on the frame 1, a support plate 104 fixedly connected to the top surface of the docking sleeves 103, a top plate 105 fixedly connected to the top of the support plate 104, lifting lugs 106 fixedly connected to both ends of the top plate 105, a pair of first bearing seats 107 fixedly connected to the outer side of the support plate 104, and a first sliding rod 108 fixedly connected between the pair of first bearing seats 107. A pulley 109 is slidably connected to the first slide rod 108. The pulley 109 is rotatably connected to the equipment frame 110. The equipment frame 110 is slidably connected to the support plate 104. An adjustment frame 112 is installed on the equipment frame 110, and a printer body 113 is installed on the adjustment frame 112. The system also includes a loading assembly, a docking assembly, and a scraping assembly. The loading assembly is installed on the base plate 102 for use with the printer body 113. The docking assembly is installed on the loading assembly for printing and processing. The scraping assembly is installed on the base plate 102 for use with the loading assembly.

[0031] Specifically, it should be noted that the height adjustment of the equipment frame 110 and the printing process of the printer body 113 are electrically connected to the control panel via wires. The specific working principles are based on existing technologies and will not be elaborated on here. The printer body 113 forms the printing material on the surface of the carrier plate 201.

[0032] In one embodiment of this invention, the loading assembly includes an adjustment box 2 fixedly mounted on a base plate 102. A loading plate 201 is mounted on the adjustment box 2. A pair of second sliding rods 202 are fixedly connected inside the adjustment box 2. A sleeve 203 is slidably connected to the pair of second sliding rods 202. The sleeve 203 is fixedly connected to a connector 204. A fixing seat 205 is fixedly connected to the center of the top surface of the connector 204. A locking block 206 is fixedly connected to the top of the fixing seat 205, and the locking block 206 is engaged with the trapezoidal plate 207. The trapezoidal plate 207 is fixedly connected to the support column 208, which is fixedly connected to the middle of the bottom surface of the carrying plate 201. A disc 209 is fixedly connected to one side of the connector 204, and a rod 210 is fixedly connected to the disc 209. The rod 210 is inserted into the sleeve rod 211, and the other end of the sleeve rod 211 is fixedly connected to the inner wall of the adjustment box 2. A return spring 212 is sleeved on the rod 210, and the two ends of the return spring 212 are fixedly connected to one side of the disc 209 and one side of the sleeve rod 211, respectively.

[0033] Specifically, a support column 208 is fixedly connected to the bottom end of the carrying plate 201, and a trapezoidal plate 207 is fixedly connected to the bottom end of the support column 208. A locking block 206 is provided inside the adjustment box 2. The locking block 206 is locked onto the trapezoidal plate 207 by the elastic force of the insert rod 210, which facilitates the overall fixing of the carrying plate 201. During installation, the trapezoidal plate 207 and the locking block 206 are aligned, and then the locking block 206 is slid to both sides by pressing down on the carrying plate 201 until the trapezoidal plate 207 is locked between the locking blocks 206, which facilitates the installation of the carrying plate 201.

[0034] As one embodiment of this invention, the docking assembly includes a driven rod 3 fixedly installed on one side of the locking block 206. One end of the driven rod 3 extends to the outside of the adjusting box 2. An L-shaped plate 301 is fixedly connected to one side of the driven rod 3. A hinge post 302 is fixedly connected to the L-shaped plate 301. A push plate 303 is rotatably connected to the hinge post 302. The other end of the push plate 303 is rotatably connected to the hinge seat 304. The hinge seat 304 is fixedly connected to the adjusting plate 305. A slider 306 is fixedly connected to the inner side of the adjusting plate 305. The slider 306 is slidably connected to the guide rail 307. The guide rail 307 is fixedly connected to the outer wall of the adjusting box 2. A buckle plate 308 is fixedly connected to the adjusting plate 305.

[0035] Specifically, the disassembly of the loading plate 201 is performed by first pulling the buckle plate 308 upward. The buckle plate 308 is fixedly connected to the adjusting plate 305. The upward movement of the buckle plate 308 causes the slider 306 on the adjusting plate 305 to slide on the guide rail 307. Hinges 304 are fixedly connected to both sides of the adjusting plate 305, and push plates 303 are rotatably connected to the hinges 304. The other end of the push plate 303 is rotatably connected to the hinge post 302 of the L-shaped plate 301. The upward movement of the adjusting plate 305 pushes the L-shaped plate 301 to open to both sides through the push plate 303, so that the L-shaped plate 301 can move by pulling the locking block 206 through the driven rod 3, so that the locking block 206 can be disengaged from both sides of the trapezoidal plate 207, thus making it easier to remove the entire loading plate 201.

[0036] In one embodiment of this invention, the scraping assembly includes a pair of side plates 4 fixedly installed on both sides of the top surface of the base plate 102. Guide grooves 401 are provided on the pair of side plates 4. A pair of second bearing seats 402 are fixedly connected to both ends of the side plates 4. A third slide rod 403 is fixedly connected between the pair of second bearing seats 402. A slide block 404 is slidably connected to the third slide rod 403. A first spring 405 is sleeved on the third slide rod 403. The two ends of the first spring 405 are fixedly connected to one side of the second bearing seat 402 and one side of the slide block 404, respectively. A slide shaft 406 is fixedly connected to one side of the slide block 404. One end of the slide shaft 406 is slidably connected inside the guide groove 401. A docking seat 407 is fixedly connected to the top surface of the slide block 404. A linkage plate 408 is rotatably connected to the docking seat 407. The other end of the linkage plate 408 is rotatably connected to the frame 409. A pair of third bearing seats 410 are fixedly connected to both sides of the frame 409. A guide rod is fixedly connected between the pair of third bearing seats 410. 411, a sliding sleeve 412 is slidably connected to the guide rod 411, a fixing member 413 is fixedly connected to the sliding sleeve 412, a pull plate 414 is fixedly connected to the top of the fixing member 413, a pair of limiting rods 5 are movably inserted into the pull plate 414, a retaining ring 501 is fixedly connected to the top of the pair of limiting rods 5, a second spring 502 is sleeved on the pair of limiting rods 5, the two ends of the second spring 502 are fixedly connected to the bottom surface of the retaining ring 501 and the top surface of the pull plate 414 respectively, and the bottom ends of the pair of limiting rods 5 are fixed. A scraper 504 is fixedly connected to the bottom surface of the limiting plate 503, and a handle 505 is fixedly connected to the top center of the limiting plate 503. The top of the handle 505 extends to the top of the pull plate 414. Positioning rods 506 are fixedly connected to the middle of both sides of the frame 409. A rotating plate 507 is rotatably connected to the middle of both sides of the side plate 4. Several sets of slots 508 are opened on the rotating plate 507, and the positioning rod 506 is locked inside one of the slots 508.

[0037] Specifically, when cleaning the attachments on the surface of the carrying plate 201, the rotating plate 507 is rotated to disengage the handle 505 from the slot 508. Then, the frame 409 moves upward by the force of the first spring 405, which facilitates the sliding shaft 406 to move to the periphery of the carrying plate 201. Then, the scraper 504 is pushed, which causes the sliding sleeve 412 to slide on the guide rod 411, thus facilitating the movement of the pull plate 414. The movement of the pull plate 414 facilitates the scraper 504 at the bottom of the limiting plate 503 to scrape off the attachments on the surface of the carrying plate 201, thereby facilitating the cleaning of the attachments on the surface of the carrying plate 201.

[0038] The working principle of this invention is as follows: A support column 208 is fixedly connected to the bottom end of the carrying plate 201, and a trapezoidal plate 207 is fixedly connected to the bottom end of the support column 208. A locking block 206 is provided inside the adjustment box 2. The locking block 206 is locked onto the trapezoidal plate 207 by the elastic force of the insert rod 210, which facilitates the overall fixing of the carrying plate 201. During installation, the trapezoidal plate 207 and the locking block 206 are aligned, and then the locking block 206 is slid to both sides by pressing down on the carrying plate 201 until the trapezoidal plate 207 is locked between the locking blocks 206, which facilitates the installation of the carrying plate 201.

[0039] To disassemble the loading plate 201, first pull the buckle plate 308 upward. The buckle plate 308 is fixedly connected to the adjusting plate 305. The upward movement of the buckle plate 308 causes the slider 306 on the adjusting plate 305 to slide on the guide rail 307. Hinges 304 are fixedly connected to both sides of the adjusting plate 305, and push plates 303 are rotatably connected to the hinges 304. The other end of the push plate 303 is rotatably connected to the hinge post 302 of the L-shaped plate 301. The upward movement of the adjusting plate 305 pushes the L-shaped plate 301 to open to both sides through the push plate 303, so that the L-shaped plate 301 can move by pulling the locking block 206 through the driven rod 3, so that the locking block 206 can be disengaged from both sides of the trapezoidal plate 207, thus making it easier to remove the loading plate 201 as a whole.

[0040] When cleaning the attachments on the surface of the carrying plate 201, the rotating plate 507 is rotated to disengage the handle 505 from the slot 508. Then, the frame 409 moves upward by the force of the first spring 405, which facilitates the sliding shaft 406 to move to the periphery of the carrying plate 201. Then, the scraper 504 is pushed, which causes the sliding sleeve 412 to slide on the guide rod 411, which facilitates the movement of the pull plate 414. The movement of the pull plate 414 facilitates the scraper 504 at the bottom of the limiting plate 503 to scrape off the attachments on the surface of the carrying plate 201, thus facilitating the cleaning of the attachments on the surface of the carrying plate 201.

[0041] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A 3D printer with a cleaning structure, comprising a frame (1), characterized in that: A bracket (101) is fixedly connected to the middle of the frame (1), a bottom plate (102) is fixedly mounted on the bracket (101), a docking sleeve (103) is symmetrically fixedly mounted on the frame (1), a support plate (104) is fixedly connected to the top surface of the docking sleeve (103), a top plate (105) is fixedly connected to the top of the support plate (104), lifting ears (106) are fixedly connected to both ends of the top plate (105), and the outer side of the support plate (104) is fixedly connected to the bottom surface of the docking sleeve (103). A pair of first shaft seats (107) are provided, a first slide bar (108) is fixedly connected between the pair of first shaft seats (107), a pulley (109) is slidably connected to the first slide bar (108), the pulley (109) is rotatably connected to a device frame (110), the device frame (110) is slidably connected to the support plate (104), an adjustment frame (112) is installed on the device frame (110), and a printer body (113) is installed on the adjustment frame (112); It also comprises a carrier component, a docking component and a scraper component, wherein the carrier component is mounted on the bottom plate (102) for use in conjunction with the printer body (113), the docking component is mounted on the carrier component for use in printing processing, and the scraper component is arranged on the bottom plate (102) for use in conjunction with the carrier component; The object carrying assembly comprises an adjusting box (2) fixedly mounted on the bottom plate (102), a carrying plate (201) being arranged on the adjusting box (2), a pair of second sliding bars (202) being fixedly connected inside the adjusting box (2), a sleeve (203) being slidably connected to the pair of second sliding bars (202), the sleeve (203) being fixedly connected to a connecting member (204), a fixing seat (205) being fixedly connected to the middle position of the top surface of the connecting member (204), a clamping block (206) being fixedly connected to the top of the fixing seat (205), the clamping block (206) being clamped on a trapezoidal plate (207), the trapezoidal plate (207) being fixedly connected to a pillar (208), and the pillar (208) being fixedly connected to the middle position of the bottom surface of the carrying plate (201); The docking assembly comprises a driven rod (3) fixedly mounted on one side of the clamping block (206), one end of the driven rod (3) extending to the outside of the regulating box (2), one side of the driven rod (3) being fixedly connected to an L-shaped plate (301), the L-shaped plate (301) being fixedly connected to a hinge column (302), a push plate (303) being rotatably connected to the hinge column (302), the other end of the push plate (303) being rotatably connected to a hinge seat (304), the hinge seat (304) being fixedly connected to an regulating plate (305), a slider (306) being fixedly connected to the inner side of the regulating plate (305), the slider (306) being slidably connected to a guide rail (307), the guide rail (307) being fixedly connected to the outer wall of the regulating box (2), and a buckle plate (308) being fixedly connected to the regulating plate (305).

2. A 3D printer with a cleaning structure according to claim 1, characterized in that: A disk (209) is fixedly connected to one side of the connecting member (204), an insertion rod (210) is fixedly connected to the disk (209), the insertion rod (210) is inserted into the interior of the sleeve rod (211), the other end of the sleeve rod (211) is fixedly connected to the inner wall of the regulating box (2), a return spring (212) is sleeved on the insertion rod (210), and two ends of the return spring (212) are respectively fixedly connected to one side of the disk (209) and one side of the sleeve rod (211).

3. A 3D printer with a cleaning structure according to claim 1, characterized in that: The scraper assembly comprises a pair of side plates (4) fixedly mounted on both sides of the top surface of the bottom plate (102); a pair of the side plates (4) are provided with guide grooves (401); two ends of the side plates (4) are fixedly connected to a pair of second shaft seats (402); a third slide bar (403) is fixedly connected between the pair of second shaft seats (402); a slide seat (404) is slidably connected to the third slide bar (403); a first spring (405) is sleeved on the third slide bar (403); two ends of the first spring (405) are respectively fixedly connected to one side of the second shaft seat (402) and one side of the slide seat (404).

4. A 3D printer with a cleaning structure according to claim 3, characterized in that: A sliding shaft (406) is fixedly connected to one side of the sliding seat (404), one end of the sliding shaft (406) is slidably connected to the inside of the guide groove (401), a docking seat (407) is fixedly connected to the top surface of the sliding seat (404), a linkage plate (408) is rotatably connected to the docking seat (407), and the other end of the linkage plate (408) is rotatably connected to the frame (409).

5. A 3D printer with a cleaning structure according to claim 4, characterized in that: A pair of third shaft seats (410) are fixedly connected to both sides of the frame (409), a guide rod (411) is fixedly connected between the pair of third shaft seats (410), a sliding sleeve (412) is slidably connected to the guide rod (411), a fixing member (413) is fixedly connected to the sliding sleeve (412), and a pull plate (414) is fixedly connected to the top of the fixing member (413).

6. A 3D printer with a cleaning structure according to claim 5, characterized in that: A pair of limiting rods (5) are movably inserted on the pull plate (414), the top ends of the pair of limiting rods (5) are fixedly connected to a retaining ring (501), a second spring (502) is sleeved on the pair of limiting rods (5), the two ends of the second spring (502) are respectively fixedly connected to the bottom surface of the retaining ring (501) and the top surface of the pull plate (414), the bottom ends of the pair of limiting rods (5) are fixedly connected to the limiting plate (503), and the bottom surface of the limiting plate (503) is fixedly connected to a scraper (504).

7. A 3D printer with a cleaning structure according to claim 6, characterized in that: A handle (505) is fixedly connected to the middle position of the top of the limiting plate (503), and the top of the handle (505) extends to the top position of the pull plate (414). Positioning rods (506) are fixedly connected to the middle positions of both sides of the frame (409). A rotating plate (507) is rotatably connected to the middle positions of both sides of the side plate (4). A plurality of groups of slots (508) are provided on the rotating plate (507), and the positioning rod (506) is clamped inside one of the slots (508).

Images