An anti-adhesion 3D printer

Abstract

The present invention discloses an anti-adhesion 3D printer, which includes a machine body. At a position near the left side of the top of the machine body, a printing device is installed, and a square hole is penetrated through the middle of the top end of the machine body. By using a heating plate as the printing tabletop and with the cooperation of a lifting mechanism and a clamping mechanism, the present invention realizes rapid demoulding and prevents the phenomenon that the formed plastic product adheres to the printing tabletop. After demoulding, some plastic raw materials are usually adhered to the top of the heating plate, and the bottom of the plastic product will show uneven and uneven phenomena. In order to prevent this phenomenon from occurring and to better carry out the next printing, with the cooperation of a first cooling fan, a first cleaning mechanism, a material guiding mechanism, and a second cleaning mechanism, the solidified plastic on the top of the heating plate and the bottom of the plastic product are removed simultaneously, improving the production efficiency of the plastic product, improving the qualification rate of the product, and being fully automated throughout the process, meeting the needs of the staff.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and more particularly to an anti-adhesion 3D printer. Background Art

[0002] 3D printing is a kind of rapid prototyping technology, also known as additive manufacturing. It is a technology that constructs objects by layer-by-layer printing based on digital model files and using bondable materials such as plastics.

[0003] When using 3D printing technology to produce plastic products, after the plastic products are formed, usually the bottom of the plastic products will adhere to the printing table, which is not convenient for the staff to remove. Then, with the development of technology, with the help of external driving force, the plastic products are pulled out from the printing table. However, in this way, usually part of the plastic raw materials will adhere to the top of the printing table, and the bottom of the plastic products will show uneven and bumpy phenomena. On the one hand, it affects the production quality of the plastic products. On the other hand, it still requires the staff to clean the printing table, which is extremely inconvenient and will also cause waste of raw materials. Summary of the Invention

[0004] To solve the above technical problems, an anti-adhesion 3D printer is provided. This technical solution solves the problem proposed in the above background art that with the development of technology, with the help of external driving force, the plastic products are pulled out from the printing table. However, in this way, usually part of the plastic raw materials will adhere to the top of the printing table, and the bottom of the plastic products will show uneven and bumpy phenomena. On the one hand, it affects the production quality of the plastic products. On the other hand, it still requires the staff to clean the printing table, which is extremely inconvenient and will also cause waste of raw materials.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] An anti-adhesion 3D printer, comprising a machine body. A printing device is installed at a position near the left side of the top of the machine body. A square hole is penetrated through the middle of the top end of the machine body. A collection box is arranged below the machine body. A first cleaning mechanism is installed at the bottom end of the machine body. A feeding mechanism is arranged at the front side of the top of the machine body. A second cleaning mechanism is installed inside the feeding mechanism. And a lifting mechanism is arranged at the rear side of the top end of the machine body. A clamping mechanism is installed on the lifting mechanism.

[0007] Preferably, the first cleaning mechanism includes a rack, a movable frame and a heating plate, two groups of support plates are fixedly connected to the bottom of the body, the two groups of support plates are rotatably connected to the inside of the two groups of support plates, a tooth part is fixedly installed in the middle of the outer surface of the rotating rod, the tooth part is meshed with the rack, the rack is fixedly connected to the middle part of the outer side of the movable frame, and connecting arms are rotatably connected at the four corners of the outer side of the movable frame, and the other end of the connecting arm is rotatably connected to the heating plate.

[0008] Preferably, a transmission motor is fixedly installed on the outer side of one group of the support plates, the outer end of the rotating rod is fixedly connected to the output end of the transmission motor, a connecting plate is also welded to the bottom of the body, an L-shaped groove is penetrated through the connecting plate, a connecting rod matching the L-shaped groove is also provided on one group of the connecting arms, and the connecting rod is slidably connected to the inside of the L-shaped groove, a track is installed at the bottom of the body, the movable frame is slidably connected to the outer surface of the track, and a first scraper is also fixedly connected to the bottom of the body.

[0009] Preferably, the lifting mechanism includes a rotating frame, which is rotatably connected to the top rear side of the body, and the bottom end of the outer surface of the rotating frame is fixedly connected to a driven wheel. A first driving motor is also provided on the top rear side of the body, and the output end of the first driving motor is fixedly connected to the driving wheel, and the driving wheel is connected to the driven wheel through a belt.

[0010] Preferably, the interior of the rotating frame is rotatably connected to a third screw rod, the interior of the rotating frame is fixedly connected to a third guide rod, the outer surface of the third screw rod is threadedly connected to a lifting ring, the lifting ring is slidably connected to the outer surface of the third guide rod, the top of the third screw rod is fixedly connected to the output end of the third stepper motor, and the third stepper motor is fixedly installed on the top of the rotating frame, the interior of the lifting ring is rotatably connected to a rotating disk, the top of the rotating disk is fixedly connected to a driven gear, a second driving motor is also provided on the top of the lifting ring, the output end of the lifting ring is fixedly connected to a driving gear meshing with the driven gear, and a plurality of groups of second cooling fans are fixedly installed on the bottom of the rotating disk.

[0011] Preferably, the clamping mechanism includes a rotating ring and a fixed ring, the rotating ring is rotatably connected to the inside of the rotating disk, the fixed ring is fixedly connected to the inside of the rotating disk, the inner and outer circumferential surfaces of the rotating ring are respectively fixedly installed with internal teeth and external teeth, the interior of the fixed ring is slidably connected with several groups of tooth plates, and the outer ends of the several groups of tooth plates are fixedly connected with rubber pads.

[0012] Preferably, a set of driving gears and several sets of driven gears are rotatably connected inside the rotating disc. The driving gears are meshed with the external teeth, and several sets of the driven gears are all meshed with the internal teeth. Moreover, several sets of the driven gears are respectively meshed with several sets of toothed plates. A third driving motor is fixedly connected to the inner top wall of the rotating disc, and the middle of the top end of the driving gear is fixedly installed at the output end of the third driving motor.

[0013] Preferably, a first electric push rod is fixedly installed on the outside of the printing device. The output end of the first electric push rod penetrates through the outer wall of the printing device and is fixedly connected to the mounting seat. A first cooling fan is rotatably connected inside the mounting seat.

[0014] Preferably, the feeding mechanism includes a first fixing block and a movable block. There are two sets of the first fixing blocks which are respectively welded on the top of the machine body. A first lead screw is rotatably connected between the two sets of the first fixing blocks. The movable block is threadedly connected to the outer surface of the first lead screw. The movable block is slidably connected to the first guide rod. The two ends of the first guide rod are respectively fixedly connected to the inner walls of the two sets of the first fixing blocks. A first stepping motor is arranged outside one of the first fixing blocks. The outer end of the first lead screw is fixedly connected to the output end of the first stepping motor. A second electric push rod is installed outside the movable block. The output end of the second electric push rod is fixedly connected to a lifting member. A feeding box is fixedly installed on the top of the lifting member. A kit is slidably connected at the discharging end of the feeding box. The outside of the kit is fixedly connected to the output end of a third electric push rod through a connecting member, and the third electric push rod is arranged on the left side of the feeding box.

[0015] Preferably, the second cleaning mechanism includes a second lead screw and a second guide rod. The second lead screw is rotatably connected inside the feeding box. The second guide rod is fixedly connected inside the feeding box. A second scraper is slidably connected to the outer surface of the second guide rod. The second scraper is threadedly connected to the second lead screw. A second stepping motor is installed outside the feeding box. The outer end of the second lead screw is fixedly connected to the output end of the second stepping motor.

[0016] Compared with the prior art, the present invention provides an anti - adhesion 3D printer, which has the following beneficial effects:

[0017] During the 3D printing process of the present invention, after each printing step is completed, the printing device resets. The first driving motor is driven to make the rotating disk located directly above the heating plate. Then, the output end of the third stepping motor drives the third lead screw to rotate, so that the rotating disk moves to a position adapted to the height of each completed printing step of the plastic product. Secondly, through the rotation of the output end of the second driving motor, the rotating disk and several groups of second cooling fans are driven to rotate integrally to cool and form each completed 3D printing step until the plastic product is printed. By doing so, the firmness of the plastic product is improved, and the forming quality is improved.

[0018] With the heating plate as the printing tabletop, the present invention realizes rapid demoulding under the cooperation of the lifting mechanism and the clamping mechanism, preventing the formed plastic product from adhering to the printing tabletop. Moreover, the clamping mechanism can well clamp plastic products of different heights and special shapes. The rubber pad increases the friction when contacting the plastic product. It can also drive the rotating disk and the clamping mechanism inside the rotating disk to rotate integrally through the rotation of the output end of the second driving motor, facilitating better finding of the clamping points of the plastic product.

[0019] After demoulding, some plastic raw materials are usually adhered to the top of the heating plate, and the bottom of the plastic product will show uneven and bumpy phenomena. In order to prevent this phenomenon and better carry out the next printing step, under the cooperation of the first cooling fan, the first cleaning mechanism, the material guiding mechanism and the second cleaning mechanism, the solidified plastic on the top of the heating plate and the bottom of the plastic product are removed simultaneously, improving the production efficiency of the plastic product, increasing the qualified rate of the product, and being fully automated throughout the process, meeting the needs of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall structural schematic diagram of the present invention;

[0021] Figure 2 is the structural schematic diagram of the printing device in the present invention;

[0022] Figure 3 is the structural schematic diagram of the bottom of the machine body in the present invention;

[0023] Figure 4 is the structural schematic diagram of the first cleaning mechanism in the present invention;

[0024] Figure 5 in the present invention Figure 3 is the enlarged structural schematic diagram of the proposed A place;

[0025] Figure 6 is the structural schematic diagram of the material guiding mechanism in the present invention;

[0026] Figure 7 is the structural schematic diagram of the second cleaning mechanism in the present invention;

[0027] Figure 8 This is a schematic structural diagram of the lifting mechanism in the present invention;

[0028] Figure 9 This is a schematic overall structural diagram of the lifting ring and the rotating disk in the present invention;

[0029] Figure 10 This is a schematic installation position diagram of the third driving motor in the present invention;

[0030] Figure 11 This is a schematic structural diagram of the clamping mechanism in the present invention;

[0031] Figure 12 In the present invention Figure 8 The enlarged structural diagram at position B proposed.

[0032] The reference numerals in the figure are:

[0033] 1. Machine body; 101. Printing device; 102. First electric push rod; 103. First cooling fan; 104. Square hole; 105. Collection box;

[0034] 2. First cleaning mechanism; 201. Support plate; 202. Rotating rod; 203. Tooth part; 204. Driving motor; 205. Rack; 206. Movable frame; 207. Connecting arm; 208. Heating plate; 209. Connecting plate; 210. L-shaped groove; 211. Connecting rod; 212. Track; 213. First scraper;

[0035] 3. Material guiding mechanism; 301. First fixing block; 302. First lead screw; 303. First guide rod; 304. Movable block; 305. First stepping motor; 306. Second electric push rod; 307. Lifting part; 308. Material guiding box; 309. Kit; 310. Third electric push rod;

[0036] 4. Second cleaning mechanism; 401. Second lead screw; 402. Second guide rod; 403. Second scraper; 404. Second stepping motor;

[0037] 5. Lifting mechanism; 501. Rotating frame; 502. First driving motor; 503. Driving wheel; 504. Belt; 505. Driven wheel; 506. Third lead screw; 507. Third guide rod; 508. Lifting ring; 509. Third stepping motor; 510. Rotating disk; 511. Second driving motor; 512. Driving gear; 513. Driven gear; 514. Second cooling fan;

[0038] 6. Clamping mechanism; 601. Rotating ring; 602. Inner teeth; 603. Outer teeth; 604. Driving gear; 605. Driven gear; 606. Fixed ring; 607. Tooth plate; 608. Third driving motor; 609. Rubber pad. Detailed implementation mode

[0039] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variants.

[0040] Embodiment 1

[0041] Please refer to Figures 1 - 11 As shown, an anti-sticking 3D printer includes a machine body 1. A printing device 101 is installed at a position near the left side of the top of the machine body 1. A square hole 104 is penetrated and opened in the middle of the top end of the machine body 1. A collection box 105 is arranged below the machine body 1. A first cleaning mechanism 2 is installed at the bottom end of the machine body 1. A feeding mechanism 3 is arranged at the front side of the top of the machine body 1. A second cleaning mechanism 4 is installed inside the feeding mechanism 3. And a lifting mechanism 5 is arranged at the rear side of the top end of the machine body 1. A clamping mechanism 6 is installed on the lifting mechanism 5.

[0042] Embodiment 2

[0043] Please refer to Figure 3 and Figure 4 As shown, the first cleaning mechanism 2 includes a rack 205, a movable frame 206 and a heating plate 208. Two groups of support plates 201 are fixedly connected to the bottom of the machine body 1. A rotating rod 202 is rotatably connected inside the two groups of support plates 201. A tooth part 203 is fixedly installed in the middle of the outer surface of the rotating rod 202. The tooth part 203 meshes with the rack 205. The rack 205 is fixedly connected to the middle of the outside of the movable frame 206. Connecting arms 207 are rotatably connected to the four corner positions of the outside of the movable frame 206. The other end of the connecting arm 207 is rotatably connected to the heating plate 208.

[0044] Please refer to Figure 4 and Figure 5 As shown, a transmission motor 204 is fixedly installed on the outside of one of the support plates 201. The outer end of the rotating rod 202 is fixedly connected to the output end of the transmission motor 204. A connecting plate 209 is also welded to the bottom of the machine body 1. An L-shaped groove 210 is penetrated and opened in the connecting plate 209. A connecting rod 211 adapted to the L-shaped groove 210 is also arranged on one of the connecting arms 207. And the connecting rod 211 is slidably connected inside the L-shaped groove 210. A track 212 is installed at the bottom of the machine body 1. The movable frame 206 is slidably connected to the outer surface of the track 212. And a first scraper 213 is also fixedly connected to the bottom of the machine body 1.

[0045] Those skilled in the art can understand thatFigure 4 From the perspective of the output end of the driving motor 204 driving the overall rotation of the rotating rod 202 and the gear member 203, the rack 205 moves to the right, causing the movable frame 206 to move to the right. Due to the provision of the L-shaped groove 210, the connecting arm 207 rotates, and the connecting rod 211 slides inside the L-shaped groove 210, causing the heating plate 208 to first move linearly out of the square hole 104 opened at the top of the machine body 1, and then the heating plate 208 moves horizontally to the right, thus realizing the opening of the square hole 104. When the connecting rod 211 slides to the intersection position of the horizontal groove and the vertical groove of the L-shaped groove 210, the top of the heating plate 208 and the bottom of the first scraper 213 are on the same straight line; conversely, the heating plate 208 enters the inside of the square hole 104, and the top of the heating plate 208 is flush with the top of the machine body 1.

[0046] Embodiment 3

[0047] Please refer to Figure 8 As shown, the lifting mechanism 5 includes a rotating frame 501, which is rotatably connected to the rear side of the top end of the machine body 1. A driven wheel 505 is fixedly connected to the bottom end of the outer surface of the rotating frame 501. A first driving motor 502 is also provided on the rear side of the top end of the machine body 1. The output end of the first driving motor 502 is fixedly connected to a driving wheel 503, and the driving wheel 503 is in transmission connection with the driven wheel 505 through a belt 504.

[0048] Please refer to Figure 8 and Figure 9 As shown, a third lead screw 506 is rotatably connected inside the rotating frame 501, and a third guide rod 507 is fixedly connected inside the rotating frame 501. A lifting ring 508 is threadedly connected to the outer surface of the third lead screw 506, and the lifting ring 508 is slidably connected to the outer surface of the third guide rod 507. The top of the third lead screw 506 is fixedly connected to the output end of a third stepping motor 509, and the third stepping motor 509 is fixedly installed on the top of the rotating frame 501. A rotating disk 510 is rotatably connected inside the lifting ring 508. A driven gear 513 is fixedly connected to the top of the rotating disk 510. A second driving motor 511 is also provided on the top of the lifting ring 508. The output end of the lifting ring 508 is fixedly connected to a driving gear 512 that meshes with the driven gear 513, and a plurality of second cooling fans 514 are fixedly installed at the bottom of the rotating disk 510.

[0049] Those skilled in the art can understand that the output end of the first driving motor 502 drives the driving wheel 503, and under the drive of the belt 504, the driven wheel 505 rotates, driving the rotating frame 501 to rotate; the output end of the third stepper motor 509 drives the third lead screw 506 to rotate, so that the lifting ring 508 moves up and down along the outer surface of the third guide rod 507, realizing the up and down movement of the rotating disc 510; the output end of the second driving motor 511 drives the driving gear 512 to rotate, so that the driven gear 513 rotates, driving the rotating disc 510, several groups of second heat dissipation fans 514 and the clamping mechanism 6 inside the rotating disc 510 to rotate integrally.

[0050] Embodiment 4

[0051] Please refer to Figure 11 and Figure 12 As shown, the clamping mechanism 6 includes a rotating ring 601 and a fixed ring 606. The rotating ring 601 is rotatably connected inside the rotating disc 510, the fixed ring 606 is fixedly connected inside the rotating disc 510. Inner teeth 602 and outer teeth 603 are respectively fixedly installed on the inner and outer circumferential surfaces of the rotating ring 601. A plurality of groups of toothed plates 607 are slidably connected inside the fixed ring 606, and rubber pads 609 are fixedly connected to the outer ends of the plurality of groups of toothed plates 607.

[0052] Please refer to Figure 11 As shown, a driving gear 604 and several driven gears 605 are also rotatably connected inside the rotating disc 510. The driving gear 604 meshes with the outer teeth 603, and several driven gears 605 all mesh with the inner teeth 602, and several driven gears 605 also respectively mesh with several groups of toothed plates 607. A third driving motor 608 is fixedly connected to the inner top wall of the rotating disc 510, and the middle of the top end of the driving gear 604 is fixedly installed on the output end of the third driving motor 608.

[0053] Those skilled in the art can understand that the output end of the third driving motor 608 drives the driving gear 604 to rotate, so that the outer teeth 603, the rotating ring 601 and the inner teeth 602 rotate integrally. Furthermore, all the driven gears 605 rotate synchronously, so that several groups of toothed plates 607 all move synchronously towards or away from the center position of the fixed ring 606, driving all the rubber pads 609 to move synchronously towards or away from the center position of the fixed ring 606.

[0054] Embodiment 5

[0055] Please refer to Figure 2 As shown, a first electric push rod 102 is fixedly installed on the outside of the printing device 101. The output end of the first electric push rod 102 penetrates through the outer wall of the printing device 101 and is fixedly connected to the mounting seat. A first heat dissipation fan 103 is rotatably connected inside the mounting seat.

[0056] Those skilled in the art can understand that by extending or contracting the output end of the first electric push rod 102, the first cooling fan 103 can be driven to move to the right or left.

[0057] Embodiment 6

[0058] Please refer to Figure 6 As shown, the material guiding mechanism 3 includes a first fixed block 301 and a movable block 304. Two groups of first fixed blocks 301 are provided and welded to the top of the machine body 1 respectively. A first lead screw 302 is rotatably connected between the two groups of first fixed blocks 301. The movable block 304 is threadedly connected to the outer surface of the first lead screw 302. The movable block 304 is slidably connected to the first guide rod 303. The two ends of the first guide rod 303 are fixedly connected to the inner walls of the two groups of first fixed blocks 301 respectively. A first stepping motor 305 is provided on the outside of one of the first fixed blocks 301. The outer end of the first lead screw 302 is fixedly connected to the output end of the first stepping motor 305. A second electric push rod 306 is installed on the outside of the movable block 304. The output end of the second electric push rod 306 is fixedly connected to a lifting member 307. A material guiding box 308 is fixedly installed at the top of the lifting member 307. A kit 309 is slidably connected to the discharge end of the material guiding box 308. The outside of the kit 309 is fixedly connected to the output end of a third electric push rod 310 through a connecting member, and the third electric push rod 310 is arranged on the left side of the material guiding box 308.

[0059] Those skilled in the art can understand that by driving the first lead screw 302 to rotate through the output end of the first stepping motor 305, the movable block 304 moves left and right reciprocally along the outer surface of the first guide rod 303, so that the material guiding box 308 moves left and right reciprocally; by extending or contracting the output end of the second electric push rod 306, the lifting member 307 is driven to move up and down, thereby driving the material guiding box 308 to move up and down; and by extending or contracting the output end of the third electric push rod 310, the kit 309 is driven to slide up and down along the discharge end of the material guiding box 308.

[0060] Embodiment 7

[0061] Please refer to Figure 7 As shown, the second cleaning mechanism 4 includes a second lead screw 401 and a second guide rod 402. The second lead screw 401 is rotatably connected inside the material guiding box 308. The second guide rod 402 is fixedly connected inside the material guiding box 308. A second scraper 403 is slidably connected to the outer surface of the second guide rod 402. The second scraper 403 is threadedly connected to the second lead screw 401. A second stepping motor 404 is installed on the outside of the material guiding box 308. The outer end of the second lead screw 401 is fixedly connected to the output end of the second stepping motor 404.

[0062] Those skilled in the art can understand that the output end of the second stepping motor 404 drives the second lead screw 401 to rotate, so that the second scraper 403 moves left and right along the outer surface of the second guide rod 402.

[0063] The working principle and usage process of this device: To clearly describe the working principle of the present invention, we will expound from Figure 1 a perspective as follows:

[0064] S1. First, under the action of the output end of the first driving motor 502, the driven wheel 505 and the rotating frame 501 rotate as a whole, so that the rotating disk 510 is not directly above the heating plate 208. Taking the heating plate 208 as the printing table, the heating plate 208 is in a non-start state. The printing device 101 forms a plastic product on the top of the heating plate 208. And during the 3D printing process, after each step of printing is completed, the printing device 101 resets, then drives the first driving motor 502 to make the rotating disk 510 located directly above the heating plate 208. Then, the output end of the third stepping motor 509 drives the third lead screw 506 to rotate, so that the rotating disk 510 moves to a position adapted to the height of each step of the plastic product printing. The output end of the second driving motor 511 drives the driving gear 512 to rotate, driving the rotating disk 510 and several groups of second cooling fans 514 to rotate as a whole, and cooling and forming each step of the completed 3D printing until the plastic product printing is completed. By doing so, the firmness of the plastic product is improved and the forming quality is improved.

[0065] S2. After the plastic product is formed, the output end of the third stepping motor 509 drives the third lead screw 506 to rotate, so that the rotating disk 510 moves downward, and then the plastic product is located at the height of the rotating disk 510. Since the shape of the plastic product is usually irregular during production, the clamping mechanism 6 is correspondingly provided in the present invention. The output end of the third driving motor 608 drives the driving gear 604 to rotate, so that the external teeth 603, the rotating ring 601 and the internal teeth 602 rotate as a whole, and then drive all the rubber pads 609 to move synchronously towards the position close to the center of the fixed ring 606 to clamp and fix the plastic product. The rubber pads 609 increase the friction of the contact surface, and can also rotate through the output end of the second driving motor 511, driving the rotating disk 510 and the clamping mechanism 6 inside the rotating disk 510 to rotate as a whole, which is convenient to better find the clamping points of the plastic product. Through this setting, the clamping of plastic products with different heights and irregular shapes is realized.

[0066] S3. Since the bottom of the plastic product is bonded to the top of the heating plate 208 after molding, to achieve better demolding, the heating plate 208 is activated to reach a certain temperature threshold, and then under the action of the output end of the third stepping motor 509, the plastic product in the clamped state moves upward to be separated from the heating plate 208. At this time, some plastic raw materials are usually bonded to the top of the heating plate 208, and the bottom of the plastic product will show uneven and rough phenomena.

[0067] S4. The output end of the first electric push rod 102 extends to drive the two first cooling fans 103 to move to the right. The two first cooling fans 103 are respectively directed at the bottom of the plastic product and the top of the heating plate 208 to cool and solidify them again.

[0068] S5. After that, the output end of the first electric push rod 102 drives the two first cooling fans 103 to reset. The output end of the transmission motor 204 drives the rotating rod 202 and the gear part 203 to rotate as a whole. Then the rack 205 moves to the right, causing the movable frame 206 to move to the right. Due to the provision of the L-shaped groove 210, the connecting arm 207 rotates, and the connecting rod 211 slides inside the L-shaped groove 210, causing the heating plate 208 to first move linearly out of the square hole 104 opened at the top of the machine body 1, and then the heating plate 208 moves horizontally to the right. The top of the heating plate 208 and the bottom of the first scraper 213 are on the same straight line, so that the first scraper 213 automatically scrapes off the solidified plastic on the top of the heating plate 208, and the solidified plastic will not adhere to the edge of the first scraper 213. The scraped solidified plastic directly falls into the collection box 105.

[0069] S6. While removing the solidified plastic on the top of the heating plate 208, start the first stepping motor 305 to move the movable block 304 and the material guiding box 308 as a whole to the center position of the square hole 104 towards the left. Secondly, extend the output end of the second electric push rod 306 to drive the lifting member 307 and the material guiding box 308 to move upward as a whole. The bottom of the plastic product is located inside the material guiding box 308, and within the qualified production height threshold of the plastic product, the height of the bottom of the plastic product is adapted to the height of the edge of the second scraper 403. Secondly, extend the output end of the third electric push rod 310 to drive the kit 309 to move downward. The bottom of the kit 309 passes through the square hole 104. Then, drive the second lead screw 401 to rotate by the output end of the second stepping motor 404 to move the second scraper 403 left and right to scrape the bottom of the plastic product. The scraped solidified plastic will not splash out of the material guiding box 308 and also falls into the collection box 105 for collection, which is used for subsequent melting of the raw material to prepare for future 3D printing, preventing waste of plastic raw materials. Since it is carried out synchronously with the step of removing the solidified plastic on the top of the heating plate 208, it also improves the production efficiency of the plastic product, avoids unevenness on the bottom of the plastic product, improves the qualification rate of the product, and is fully automated, meeting the needs of the staff.

[0070] The foregoing shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-sticking 3D printer, comprising a machine body (1), characterized in that, A printing device (101) is installed at a position near the left side of the top of the machine body (1). A square hole (104) is penetrated through the middle of the top end of the machine body (1). A collection box (105) is arranged below the machine body (1). A first cleaning mechanism (2) is installed at the bottom end of the machine body (1). A feeding mechanism (3) is arranged at the front side of the top of the machine body (1). A second cleaning mechanism (4) is installed inside the feeding mechanism (3). And a lifting mechanism (5) is arranged at the rear side of the top end of the machine body (1). A clamping mechanism (6) is installed on the lifting mechanism (5); The first cleaning mechanism (2) includes a rack (205), a movable frame (206) and a heating plate (208). Two groups of support plates (201) are fixedly connected to the bottom of the machine body (1). A rotating rod (202) is rotatably connected inside the two groups of support plates (201). A tooth part (203) is fixedly installed in the middle of the outer surface of the rotating rod (202). The tooth part (203) is engaged with the rack (205). The rack (205) is fixedly connected to the middle of the outer side of the movable frame (206). Connecting arms (207) are rotatably connected to the four corner positions of the outer side of the movable frame (206). The other end of the connecting arm (207) is rotatably connected to the heating plate (208). And a first scraper (213) is also fixedly connected to the bottom of the machine body (1). The heating plate (208) can enter the inside of the square hole (104); The feeding mechanism (3) includes a first fixing block (301) and a movable block (304). Two groups of the first fixing blocks (301) are provided and are respectively welded to the top of the machine body (1). A first lead screw (302) is rotatably connected between the two groups of the first fixing blocks (301). The movable block (304) is threadedly connected to the outer surface of the first lead screw (302). The movable block (304) is slidably connected to a first guide rod (303). The two ends of the first guide rod (303) are respectively fixedly connected to the inner walls of the two groups of the first fixing blocks (301). A first stepping motor (305) is arranged on the outer side of one of the first fixing blocks (301). The outer end of the first lead screw (302) is fixedly connected to the output end of the first stepping motor (305). A second electric push rod (306) is installed on the outer side of the movable block (304). The output end of the second electric push rod (306) is fixedly connected to a lifting part (307). A feeding box (308) is fixedly installed at the top of the lifting part (307). A kit (309) is slidably connected to the discharging end of the feeding box (308). The outer side of the kit (309) is fixedly connected to the output end of a third electric push rod (310) through a connecting part. And the third electric push rod (310) is arranged on the left side of the feeding box (308); The second cleaning mechanism (4) comprises a second screw rod (401) and a second guide rod (402); the second screw rod (401) is rotatably connected to the inside of the material guide box (308); the second guide rod (402) is fixedly connected to the inside of the material guide box (308); the outer surface of the second guide rod (402) is slidably connected to a second scraper (403); the second scraper (403) is threadedly connected to the second screw rod (401); a second stepping motor (404) is installed on the outside of the material guide box (308); and the outer end of the second screw rod (401) is fixedly connected to the output end of the second stepping motor (404).

2. The anti-sticking 3D printer according to claim 1, characterized in that A transmission motor (204) is fixedly mounted on the outer side of one group of the support plates (201); the outer end of the rotating rod (202) is fixedly connected to the output end of the transmission motor (204); a connecting plate (209) is welded to the bottom of the machine body (1); an L-shaped groove (210) is penetrated through the connecting plate (209); a connecting rod (211) adapted to the L-shaped groove (210) is provided on one group of the connecting arms (207); the connecting rod (211) is slidably connected to the inside of the L-shaped groove (210); a track (212) is mounted on the bottom of the machine body (1); and the movable frame (206) is slidably connected to the outer surface of the track (212).

3. The anti-sticking 3D printer according to claim 1, characterized in that, The lifting mechanism (5) comprises a rotating frame (501), the rotating frame (501) being rotatably connected to the rear side of the top end of the machine body (1), a driven wheel (505) being fixedly connected to the bottom end of the outer surface of the rotating frame (501), a first driving motor (502) being further arranged at the rear side of the top end of the machine body (1), an output end of the first driving motor (502) being fixedly connected to the driving wheel (503), and the driving wheel (503) being transmission-connected to the driven wheel (505) via a belt (504).

4. The anti-adhesion 3D printer according to claim 3, wherein, The interior of the rotating frame (501) is rotatably connected to a third screw rod (506), the interior of the rotating frame (501) is fixedly connected to a third guide rod (507), the outer surface of the third screw rod (506) is threadedly connected to a lifting ring (508), the lifting ring (508) is slidably connected to the outer surface of the third guide rod (507), the top of the third screw rod (506) is fixedly connected to the output end of a third stepping motor (509), and the third stepping motor (509) is fixedly mounted on the rotating frame. The top of the frame (501) is connected to the lifting ring (508) in a rotatable manner inside, and the top of the rotating disk (510) is fixedly connected to a driven gear (513). A second driving motor (511) is also provided on the top of the lifting ring (508), and the output end of the lifting ring (508) is fixedly connected to a driving gear (512) meshing with the driven gear (513), and a plurality of groups of second cooling fans (514) are fixedly installed on the bottom of the rotating disk (510).

5. The anti-sticking 3D printer according to claim 4, characterized in that, The clamping mechanism (6) includes a rotating ring (601) and a fixed ring (606). The rotating ring (601) is rotatably connected to the inside of the rotating disk (510), and the fixed ring (606) is fixedly connected to the inside of the rotating disk (510). Inner teeth (602) and outer teeth (603) are fixedly installed on the inner and outer circumferential surfaces of the rotating ring (601) respectively. A plurality of groups of toothed plates (607) are slidably connected to the inside of the fixed ring (606), and rubber pads (609) are fixedly connected to the outer ends of the plurality of groups of toothed plates (607).

6. The anti-adhesion 3D printer according to claim 5, characterized in that, A driving gear (604) and a plurality of driven gears (605) are also rotatably connected to the inside of the rotating disk (510). The driving gear (604) meshes with the outer teeth (603), and the plurality of driven gears (605) all mesh with the inner teeth (602). The plurality of driven gears (605) also respectively mesh with the plurality of groups of toothed plates (607). A third driving motor (608) is fixedly connected to the inner top wall of the rotating disk (510). The middle of the top end of the driving gear (604) is fixedly installed on the output end of the third driving motor (608).

7. The anti-sticking 3D printer according to claim 1, wherein A first electric push rod (102) is fixedly installed on the outside of the printing device (101). The output end of the first electric push rod (102) penetrates the outer wall of the printing device (101) and is fixedly connected to the mounting seat. A first cooling fan (103) is rotatably connected to the inside of the mounting seat.

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