3D printing equipment

Abstract

According to the 3D printing equipment, a mechanical arm drives a spray head module to move to complete 3D printing operation, the spray head module comprises an adjusting assembly and a cleaning assembly, the adjusting assembly comprises at least two spray heads, and the adjusting assembly can adjust the positions of the at least two spray heads so that one of the at least two spray heads can correspond to the cleaning assembly; one of the at least two nozzles is connected with the raw material pool, and the other of the at least two nozzles is connected with the raw material pool, so that under the condition that the nozzles in operation are blocked, the positions of the nozzles can be adjusted through the adjusting assembly, the blocked nozzles are moved to the corresponding positions of the cleaning assembly, and the cleaning assembly is started to clean the blocked nozzles; and meanwhile, the non-blocked spray head is moved to the position corresponding to the discharging pipe, so that the non-blocked spray head continues to complete 3D printing work, through conversion of the at least two spray heads, spray head cleaning and 3D printing work can be conducted at the same time, the low 3D printing efficiency caused by spray head blocking is improved, and the working efficiency of the 3D printing equipment is improved.

Description

Technical Field

[0001] This application relates to the field of 3D printing technology, and more specifically, to a 3D printing device. Background Technology

[0002] Currently, precast blocks in silt-retention dams are usually made using 3D printing. However, precast blocks are typically made of concrete, which means that during the 3D printing process, residual concrete in the nozzle can easily adhere to the inner wall of the nozzle after curing, causing nozzle blockage. This necessitates interrupting the 3D printing process for cleaning, reducing the efficiency of 3D printing.

[0003] In conclusion, how to improve the low 3D printing efficiency caused by nozzle clogging is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a 3D printing device to improve the low 3D printing efficiency caused by nozzle clogging.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A 3D printing device includes: a platform, a robotic arm, a nozzle module, and a raw material pool; wherein the robotic arm is fixedly connected to the platform, and the robotic arm is connected to the nozzle module via a connector; the nozzle module includes an adjustment component and a cleaning component, the adjustment component includes at least two nozzles, the adjustment component is capable of adjusting the position of at least two nozzles so that one of the at least two nozzles corresponds to the cleaning component, and the other of the at least two nozzles is connected to the raw material pool via a discharge pipe; the cleaning component is capable of entering the interior of the nozzle along the axial direction of the nozzle and cleaning the nozzle.

[0007] In some embodiments, the adjustment assembly further includes: a first driving member, a push rod, a first connecting plate, a slider, a bracket, and a fixing member; wherein, the first driving member is fixedly connected inside the connecting member; the first driving member is pulsatorically connected to the push rod, the push rod is fixedly connected to the slider through the first connecting plate, the slider is slidably connected to the bracket through the fixing member, and the bracket and the slider are fixedly relative to each other in their axial direction; at least two nozzles are sequentially fixedly connected to the circumference of the bracket, and the push rod is capable of pushing any one of the at least two nozzles to rotate the bracket and drive one of the at least two nozzles to correspond to the cleaning assembly.

[0008] In some embodiments, the base plate of the bracket is provided with a track for the fixing member to move, and the axial direction of the first driving member is eccentrically distributed with respect to the bracket.

[0009] In some embodiments, there are four nozzles, which are equidistantly distributed around the circumference of the bracket, and the push rod can push one of the four nozzles with each rotation.

[0010] In some embodiments, the cleaning assembly includes: a water tank, a hose, a sprayer, a first telescopic member, and a cleaning body; the water tank and the first telescopic member are both fixedly connected to the connector; the first telescopic member is throttle-connected to the cleaning body, and the first telescopic member is capable of driving the cleaning body to move along the axial direction of the nozzle; the water tank is connected to the sprayer through the hose, and the sprayer is fixedly connected to the bottom end of the cleaning body.

[0011] In some embodiments, the cleaning body includes: a second driving member, a third driving member, a ball screw, a moving block, a sleeve, a first hinge rod, a second hinge rod, a cleaning plate, and a limiting member; wherein, the second driving member is fixedly connected to the first telescopic member via a second connecting plate; the second driving member is drivenly connected to the third driving member, the third driving member is drivenly connected to the ball screw, and the ball screw is drivenly connected to the moving block, so that the ball screw rotates to drive the moving block to move along the axial direction of the ball screw; the sleeve is fitted onto the ball screw, and the sleeve is connected to the ball screw via the limiting member, so that the sleeve and the ball screw are relatively fixed in their axial direction; the two ends of the first hinge rod are rotatably connected to the moving block and the cleaning plate, respectively, and the two ends of the second hinge rod are rotatably connected to the sleeve and the cleaning plate, respectively.

[0012] In some embodiments, there are at least two first hinge rods, and the at least two first hinge rods are distributed sequentially along the circumference of the moving block; there are at least two second hinge rods, and the at least two second hinge rods are distributed sequentially along the circumference of the sleeve; there are at least two cleaning plates, and the cleaning plates correspond one-to-one with the first hinge rods.

[0013] In some embodiments, the limiting member includes a limiting ring and a limiting rod; the limiting ring is rotatably connected to the ball screw, and the two ends of the limiting rod are respectively fixedly connected to the limiting ring and the sleeve.

[0014] In some embodiments, a telescopic tube is provided at one end of the discharge pipe connected to the nozzle, and a second telescopic member is fixedly connected to the telescopic tube via a third connecting plate, and the second telescopic member is fixedly connected to the connecting member.

[0015] In some embodiments, the platform includes a platform body, a lifting assembly, and a tilting assembly; the lifting assembly is located at the bottom end of the platform body; the tilting assembly includes a tilting plate and a third telescopic member, the tilting plate is rotatably connected to the platform body, the two ends of the third telescopic member are respectively rotatably connected to the tilting plate and the bottom end of the platform, and the raw material pool is fixedly connected to the top end of the tilting plate.

[0016] In the 3D printing equipment provided in this application, a robotic arm is fixedly connected to a platform and a nozzle module is fixedly connected to it via a connector. The robotic arm drives the nozzle module to move and complete the 3D printing operation. The nozzle module includes an adjustment component and a cleaning component. The adjustment component includes at least two nozzles and can adjust the position of at least two nozzles so that one of the nozzles corresponds to the cleaning component. The other of the nozzles is connected to the material pool via a discharge pipe. The cleaning component can enter the interior of the nozzle along the axial direction of the nozzle to clean it. Thus, in the event of nozzle blockage during operation, the position of the nozzle can be adjusted by the adjustment component, causing the blocked nozzle to move to the corresponding position of the cleaning component and activating the cleaning component to clean the blocked nozzle. At the same time, the unblocked nozzle is moved to the position corresponding to the discharge pipe, allowing the unblocked nozzle to continue completing the 3D printing operation. By switching between at least two nozzles, nozzle cleaning and 3D printing can be performed simultaneously, improving the low 3D printing efficiency caused by nozzle blockage and increasing the working efficiency of the 3D printing equipment. Attached Figure Description

[0017] 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 embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the 3D printing equipment provided in the embodiments of this application;

[0019] Figure 2 for Figure 1 A schematic diagram of the 3D printing equipment from another angle;

[0020] Figure 3 This is a schematic diagram of the structure of the robotic arm in the 3D printing equipment provided in the embodiments of this application;

[0021] Figure 4 This is a schematic diagram of the nozzle module in the 3D printing equipment provided in the embodiments of this application;

[0022] Figure 5 for Figure 4 The diagram shows the structure of the adjustment component in the nozzle module.

[0023] Figure 6 for Figure 5 A cross-sectional view of the adjustment component shown;

[0024] Figure 7 for Figure 4 The diagram shows the structure of the cleaning components in the nozzle module.

[0025] Figure 8 for Figure 7 The diagram shows the structure of the cleaning unit in the cleaning assembly.

[0026] Figure 9 for Figure 8 A cross-sectional view of the cleaning unit shown;

[0027] Figure 10 This is a schematic diagram of the nozzle discharge pipe in the 3D printing equipment provided in the embodiments of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100 - Platform, 110 - Lifting assembly, 120 - Tilt assembly, 121 - Tilt plate, 122 - Third telescopic component;

[0030] 200 - Robotic arm, 210 - Support platform, 220 - Upper arm, 230 - Lower arm, 240 - Connector;

[0031] 300-Sprayer Module, 310-Adjustment Component, 311-First Drive Component, 312-Push Rod, 313-First Connecting Plate, 314-Slider, 315-Fixed Component, 316-Bracket, 317-Sprayer Head, 320-Cleaning Component, 321-Water Tank, 322-Hose, 323-First Telescopic Component, 324-Second Connecting Plate, 325-Second Drive Component, 326-Third Drive Component, 327-Ball Screw, 328-Moving Block, 329-Sleeve, 330-First Hinge Rod, 331-Second Hinge Rod, 332-Cleaning Plate, 333-Sprayer, 334-Limiting Component, 3341-Limiting Ring, 3342-Limiting Rod;

[0032] 400 - Raw material pool, 410 - Discharge pipe, 420 - Telescopic pipe, 430 - Third connecting plate, 440 - Second telescopic component. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The terminology used in the following embodiments is for the purpose of describing specific embodiments only and is not intended to be a limitation of this application. As used in the specification and appended claims of this application, the singular expressions "a," "an," "the," "the," "the," and "this" are intended to also include expressions such as "one or more," unless the context clearly indicates otherwise.

[0035] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0036] The "multiple" mentioned in the embodiments of this application refers to two or more. It should be noted that in the description of the embodiments of this application, terms such as "first" and "second" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0037] like Figures 1-10 As shown, the 3D printing equipment provided in this embodiment includes a platform 100, a robotic arm 200, a nozzle module 300, and a raw material tank 400. The robotic arm 200 is fixedly connected to the platform 100 and is connected to the nozzle module 300 via a connector 240. Thus, the movement of the robotic arm 200 drives the nozzle module 300 to perform printing operations, thereby realizing the production of precast blocks in the ground.

[0038] The nozzle module 300 includes an adjustment component 310 and a cleaning component 320. The adjustment component 310 includes at least two nozzles 317 and can adjust the position of at least two nozzles 317 so that after adjustment, one of the at least two nozzles 317 can correspond to the cleaning component 320, and the other of the at least two nozzles 317 can be connected to the raw material feeder 400 through the discharge pipe 410. The cleaning component 320 can enter the interior of the nozzle 317 along the axial direction of the nozzle 317 and clean the interior of the nozzle 317. In this way, if the nozzle 317 becomes clogged during operation, the position of the nozzle 317 can be adjusted by the adjusting component 310, so that the clogged nozzle 317 is moved to the corresponding position of the cleaning component 320, and the cleaning component 320 is activated to clean the clogged nozzle 317. At the same time, the unclogged nozzle 317 is moved to the position corresponding to the discharge pipe 410, so that the unclogged nozzle 317 can continue to complete the 3D printing operation. By switching at least two nozzles, nozzle cleaning and 3D printing operations can be carried out simultaneously, improving the low 3D printing efficiency caused by nozzle clogging and improving the working efficiency of the 3D printing equipment.

[0039] In practice, the outer surface of the nozzle 317 is covered with a protective pad made of ethylene-vinyl acetate copolymer, which has good impact resistance and stress crack resistance, a certain degree of softness, high elasticity, puncture resistance and chemical stability, thus improving the service life of the nozzle 317.

[0040] like Figures 1-3 As shown, the robotic arm 200 includes a support platform 210, a large arm 220, a small arm 230, and a connector 240. The support platform 210 is fixedly connected to the platform 100 by threaded fasteners. The large arm 220 is movably connected to the support platform 210, and the small arm 230 is movably connected to the large arm 220. The connector 240 is fixedly connected to the end of the small arm 230 away from the large arm 220. This improves the flexibility of the printhead module 300 during the operation of the robotic arm 200, thereby further improving printing efficiency.

[0041] It should be noted that the robotic arm 200 is a multi-degree-of-freedom robotic arm that can be applied in conventional fields, and the specific structure of the robotic arm 200 will not be described in detail here.

[0042] like Figures 3-4 As shown, the connector 240 includes a fixedly connected frame and a connecting block, which increases the distance between the printhead module 300 and the robotic arm 200, so that the printhead module 300 has more room to move and further improves printing efficiency.

[0043] like Figures 4-6As shown, the adjustment assembly 310 further includes: a first driving member 311, a push rod 312, a first connecting plate 313, a slider 314, a bracket 316, and a fixing member 315. The first driving member 311 is fixedly connected inside the connecting member 240 to improve the stability of the adjustment process of the adjustment assembly 310. The first driving member 311 is drive-connected to the push rod 312, the push rod 312 is fixedly connected to the slider 314 via the first connecting plate 313, and the slider 314 is slidably connected to the bracket 316 via the fixing member 315. The fixing member 315 also allows the bracket 316 and the slider 314 to be relatively fixed in their axial direction.

[0044] At least two nozzles 317 are fixed in sequence around the bracket 316. During the process of the first driving member 311 driving the push rod 312, the push rod 312 can push any one of the nozzles 317 to make the bracket 316 rotate and drive all the nozzles 317 to rotate synchronously, so that one of the nozzles 317 can correspond to the cleaning component 320.

[0045] To ensure that the push rod 312 can push one of the nozzles 317 and drive the bracket 316 to rotate, such as Figure 6 As shown, the base plate of the bracket 316 has a track for the movement of the fixing member 315, and the axis of the first driving member 311 is eccentrically distributed with respect to the bracket 316. Thus, by driving the first driving member 311, the push rod 312, the first connecting plate 313 and the slider 314 can be driven to rotate synchronously, so that the push rod 312 can push one of the nozzles 317 and drive the bracket 316 to rotate.

[0046] It should be noted that the first driving component 311 can be a stepper motor, DC motor, or other motor capable of driving rotation, and this application embodiment does not limit this.

[0047] In some embodiments, to ensure the stability of the adjusted positions of the nozzles 317, such as Figure 5 As shown, there are four printheads 317, which are equidistantly distributed around the circumference of the bracket 316. This allows the push rod 312 to push one of the four printheads 317 with each rotation without touching the others. This enables the four printheads 317 to switch between four designated positions sequentially. This allows the subsequent cleaning component 320 and the discharge tube 410 to correspond more precisely with the printheads 317, improving the level of automation and further increasing printing efficiency.

[0048] like Figure 4 , Figure 7As shown, the cleaning assembly 320 includes a water tank 321, a hose 322, a sprayer 333, a first telescopic member 323, and a cleaning body. The water tank 321 and the first telescopic member 323 are both fixedly connected to the connector 240, ensuring that the position of the cleaning body corresponds to the position of the nozzle 317 that needs cleaning. The first telescopic member 323 is drive-connected to the cleaning body, enabling it to move the cleaning body axially along the nozzle 317. The water tank 321 is connected to the sprayer 333 via the hose 322, and the sprayer 333 is fixedly connected to the bottom end of the cleaning body. Thus, when cleaning is not required, the first telescopic member 323 retracts, moving the cleaning body away from the nozzle 317; when cleaning of the nozzle 317 is required, the first telescopic member 323 extends, moving the cleaning body into the interior of the nozzle 317, and by activating the sprayer 333, water is sprayed to clean the interior of the nozzle 317.

[0049] like Figures 7-9 As shown, the cleaning body includes: a second drive component 325, a third drive component 326, a ball screw 327, a moving block 328, a sleeve 329, a first hinge rod 330, a second hinge rod 331, a cleaning plate 332, and a limiting component 334. The second drive component 325 is fixedly connected to the output end of the first telescopic component 323 via a second connecting plate 324, so that the first telescopic component 323 can drive the cleaning body via the second connecting plate 324.

[0050] It should be noted that the first telescopic member 323 can be an electric cylinder, electric telescopic rod, etc., which can realize telescopic movement, and the second driving member 325 and the third driving member 326 can be a stepper motor, DC motor, etc., which can drive rotation. This application embodiment does not limit this.

[0051] The second drive component 325 is connected to the third drive component 326, enabling the second drive component 325 to drive the entire cleaning body to rotate. The third drive component 326 is connected to the ball screw 327, which is connected to the moving block 328. Thus, when the third drive component 326 drives the ball screw 327 to rotate, the moving block 328 can move along the axial direction of the ball screw 327 without rotating. The connection between the ball screw 327 and the moving block 328 is a conventional connection, which will not be described in detail here.

[0052] The end of the ball screw 327 away from the third drive member 326 is fitted with a sleeve 329, and the sleeve 329 is connected to the ball screw 327 by a limiting member 334, so that the sleeve 329 is relatively fixed to the ball screw 327 in its axial direction. In this way, during the rotation of the ball screw 327, only the moving block 328 will be driven to move, while the sleeve 329 remains relatively fixed, so as to change the distance between the moving block 328 and the sleeve 329.

[0053] In some embodiments, there is a gap between the ball screw 327 and the sleeve 329, allowing the ball screw 327 to rotate inside the sleeve 329.

[0054] In some other embodiments, the section where the ball screw 327 mates with the sleeve 329 is a smooth surface, further ensuring that the ball screw 327 can rotate inside the sleeve 329.

[0055] like Figure 9 As shown, the limiting component 334 includes a limiting ring 3341 and a limiting rod 3342. The limiting ring 3341 is sleeved on the ball screw 327 and rotatably connected to the ball screw 327. The two ends of the limiting rod 3342 are fixedly connected to the limiting ring 3341 and the sleeve 329, respectively, so that the ball screw 327 rotates inside the limiting ring 3341 to achieve relative fixation of the sleeve 329 in its axial direction.

[0056] In some embodiments, a bearing or the like may be provided between the ball screw 327 and the limiting ring 3341, but this application embodiment does not limit this.

[0057] In some other embodiments, to ensure the stability of the sleeve 329, there are two limiting rods 3342, which are distributed sequentially along the circumference of the limiting ring 3341. Of course, there can also be three or four limiting rods 3342, etc., and this application does not limit this.

[0058] like Figures 8-9 As shown, the two ends of the first hinge rod 330 are rotatably connected to the moving block 328 and the cleaning plate 332, respectively, and the two ends of the second hinge rod 331 are rotatably connected to the sleeve 329 and the cleaning plate 332, respectively. In this way, as the moving block 328 moves towards one end of the sprayer 333, the cleaning plate 332 can move away from the sleeve 329 under the action of the first hinge rod 330 and the second hinge rod 331. This allows the cleaning plate 332 to gradually fit against the inner wall of the spray head 317 when the cleaning body enters the interior of the spray head 317, so that the cleaning plate 332 can rotate to clean the inner wall of the spray head 317 under the drive of the second drive member 325.

[0059] To ensure cleaning effectiveness, there are at least two first hinge rods 330, and these at least two first hinge rods 330 are distributed sequentially along the circumference of the moving block 328; there are also at least two second hinge rods 331, and these at least two second hinge rods 331 are distributed sequentially along the circumference of the sleeve 329; there are also at least two cleaning plates 332, and each cleaning plate 332 corresponds one-to-one with a first hinge rod 330, so that during the rotation of the ball screw 327, the moving block 328 moves along the axial direction of the ball screw 327, thereby driving at least two cleaning plates 332 to adhere to the inner wall of the nozzle 317, thus improving the cleaning effect.

[0060] In some embodiments, such as Figures 7-9 As shown, there are four first hinge rods 330 and four cleaning plates 332 to further improve the cleaning effect; each first hinge rod 330 corresponds to two second hinge rods 331, and the two second hinge rods 331 in each group are respectively connected to the two ends of the cleaning plate 332 to ensure the stability of the cleaning plate 332 and further ensure the cleaning effect.

[0061] Of course, in other embodiments, there may be two or three cleaning plates 332, and the first hinge rod 330 and the second hinge rod 331 may correspond to the cleaning plate 332. This application does not limit this.

[0062] In some embodiments, the cleaning plate 332 is made of polytetrafluoroethylene (PTFE), which typically has good wear resistance and corrosion resistance, and relatively low hardness. This makes it less likely to scratch the nozzle 317 during the cleaning process of the cleaning plate 332 on the inner wall of the nozzle 317, thus extending the service life of the nozzle 317.

[0063] To improve the connection efficiency between the discharge pipe 410 and the nozzle 317, such as Figure 1 and Figure 10 As shown, a telescopic tube 420 is provided at one end of the discharge pipe 410 that connects to the printhead 317. The telescopic tube 420 is fixedly connected to a second telescopic component 440 via a third connecting plate 430, and the second telescopic component 440 is fixedly connected to the connector 240. Thus, when the printhead 317 needs to be replaced, the second telescopic component 440 causes the telescopic tube 420 to retract, disengaging the discharge pipe 410 from the printhead 317. After the printhead 317 is repositioned, the second telescopic component 440 causes the telescopic tube 420 to extend, connecting the discharge pipe 410 to the unblocked printhead 317's connection port for continued printing. This improves the automation of the printing process and further enhances printing efficiency.

[0064] It should be noted that the second telescopic member 440 can be an electric cylinder, an electric telescopic rod, or the like that can achieve telescopic movement; this application embodiment does not limit this.

[0065] like Figures 1-2 As shown, to improve the applicability of the 3D printing equipment, the platform 100 includes a platform body, a lifting assembly 110, and a tilting assembly 120. The lifting assembly 110 is located at the bottom of the platform body and is a conventional scissor lift device, capable of lifting the platform body and driving the robotic arm 200 and the nozzle module 300 to lift as well, thereby improving the applicability of the 3D printing equipment.

[0066] like Figure 2As shown, the tilting assembly 120 includes a tilting plate 121 and a third telescopic member 122. The tilting plate 121 is rotatably connected to the platform body, and the two ends of the third telescopic member 122 are rotatably connected to the tilting plate 121 and the bottom end of the platform 100, respectively. The material pool 400 is fixedly connected to the top end of the tilting plate 121. Thus, during operation, the tilting plate 121 can be moved by the extension and retraction of the third telescopic member 122, causing the material pool 400 to move, thereby making the material flow more smoothly, reducing the frequency of nozzle 317 clogging, and further improving the efficiency of the printing operation.

[0067] It should be noted that the third telescopic member 122 can be an electric cylinder, an electric telescopic rod, or the like that can achieve telescopic movement; this application embodiment does not limit this.

[0068] In the operation of the 3D printing equipment provided in this application embodiment, the second telescopic member 440 first drives the discharge pipe 410 to connect with the working nozzle 317 to start the printing operation. If the working nozzle 317 is blocked, the discharge pipe 410 is first separated from the blocked nozzle 317, and the adjustment component 310 is activated to change the position of multiple nozzles 317, so that the blocked nozzle 317 is opposite to the cleaning component 320, and the unblocked nozzle 317 is opposite to the discharge pipe 410, so that the discharge pipe 410 can connect with the unblocked nozzle 317 in time to continue the printing operation. To improve printing efficiency, the cleaning component 320 is activated simultaneously. This causes the first telescopic member 323 to move the cleaning body inside the nozzle 317, driving the third drive member 326 to rotate the ball screw 327. During the movement of the moving block 328, multiple cleaning plates 332 are brought into contact with the inner wall of the nozzle 317. Then, the sprayer 333 and the second drive member 325 are activated simultaneously. The second drive member 325 drives the cleaning plates 332 to rotate, scraping away material adhering to the inner wall of the nozzle 317. Simultaneously, the sprayer 333 sprays clean water for cleaning, thus cleaning the clogged nozzle 317. In this way, the position of the nozzle 317 can be adjusted by the adjusting component 310 during the 3D printing process. By switching between at least two nozzles 317, the cleaning of the nozzle 317 and the 3D printing operation can be performed simultaneously, improving the low 3D printing efficiency caused by nozzle clogging and increasing the overall efficiency of the 3D printing equipment.

[0069] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A 3D printing device, characterized in that, include: Platform (100), robotic arm (200), nozzle module (300) and raw material pool (400); The robotic arm (200) is fixedly connected to the platform (100), and the robotic arm (200) is connected to the nozzle module (300) through a connector (240). The nozzle module (300) includes an adjustment component (310) and a cleaning component (320). The adjustment component (310) includes at least two nozzles (317). The adjustment component (310) is capable of adjusting the position of at least two nozzles (317) so that one of the at least two nozzles (317) corresponds to the cleaning component (320), and the other of the at least two nozzles (317) is connected to the raw material pool (400) through a discharge pipe (410). The cleaning component (320) is capable of entering the interior of the nozzle (317) along the axial direction of the nozzle (317) and cleaning the nozzle (317).

2. The 3D printing equipment according to claim 1, characterized in that, The adjustment assembly (310) further includes: a first driving member (311), a push rod (312), a first connecting plate (313), a slider (314), a bracket (316), and a fixing member (315). The first driving member (311) is fixedly connected to the inside of the connecting member (240); The first driving member (311) is connected to the push rod (312) in a transmission connection. The push rod (312) is fixedly connected to the slider (314) through the first connecting plate (313). The slider (314) is slidably connected to the bracket (316) through the fixing member (315). The bracket (316) and the slider (314) are relatively fixed in their axial direction. At least two of the nozzles (317) are sequentially fixedly connected to the bracket (316) in the circumferential direction. The push rod (312) can push any one of the at least two nozzles (317) to rotate the bracket (316) and drive one of the at least two nozzles (317) to correspond to the cleaning assembly (320).

3. The 3D printing equipment according to claim 2, characterized in that, The base plate of the bracket (316) is provided with a track for the fixing member (315) to move, and the axial direction of the first driving member (311) is eccentrically distributed with respect to the bracket (316).

4. The 3D printing equipment according to claim 2, characterized in that, There are four nozzles (317), which are equidistantly distributed along the circumference of the bracket (316). Each rotation of the push rod (312) can push one of the four nozzles (317).

5. The 3D printing equipment according to claim 1, characterized in that, The cleaning assembly (320) includes: a water tank (321), a hose (322), a sprayer (333), a first telescopic member (323), and a cleaning body; The water tank (321) and the first telescopic member (323) are both fixedly connected to the connector (240); The first telescopic member (323) is connected to the cleaning body in a transmission manner, and the first telescopic member (323) can drive the cleaning body to move along the axial direction of the nozzle (317); The water tank (321) is connected to the sprayer (333) via the hose (322), and the sprayer (333) is fixedly connected to the bottom of the cleaning body.

6. The 3D printing equipment according to claim 5, characterized in that, The cleaning body includes: a second drive component (325), a third drive component (326), a ball screw (327), a moving block (328), a sleeve (329), a first hinge rod (330), a second hinge rod (331), a cleaning plate (332), and a limiting component (334). The second driving member (325) is fixedly connected to the first telescopic member (323) via the second connecting plate (324); The second driving member (325) is connected to the third driving member (326) in a transmission connection. The third driving member (326) is connected to the ball screw (327) in a transmission connection. The ball screw (327) is connected to the moving block (328) in a transmission connection, so that the ball screw (327) rotates and drives the moving block (328) to move along the axial direction of the ball screw (327). The sleeve (329) is fitted onto the ball screw (327), and the sleeve (329) is connected to the ball screw (327) through the limiting member (334) so ​​that the sleeve (329) and the ball screw (327) are fixed relative to each other in their axial direction; The two ends of the first hinge rod (330) are rotatably connected to the moving block (328) and the cleaning plate (332), respectively, and the two ends of the second hinge rod (331) are rotatably connected to the sleeve (329) and the cleaning plate (332), respectively.

7. The 3D printing equipment according to claim 6, characterized in that, There are at least two first hinge rods (330), and at least two first hinge rods (330) are distributed sequentially along the circumference of the moving block (328); There are at least two second hinge rods (331), and at least two second hinge rods (331) are distributed sequentially along the circumference of the sleeve (329); There are at least two cleaning plates (332), and each cleaning plate (332) corresponds to one of the first hinge rods (330).

8. The 3D printing equipment according to claim 6, characterized in that, The limiting component (334) includes a limiting ring (3341) and a limiting rod (3342). The limiting ring (3341) is rotatably connected to the ball screw (327), and the two ends of the limiting rod (3342) are respectively fixedly connected to the limiting ring (3341) and the sleeve (329).

9. The 3D printing equipment according to claim 1, characterized in that, The discharge pipe (410) is connected to the nozzle (317) at one end with a telescopic pipe (420). The telescopic pipe (420) is fixedly connected to a second telescopic component (440) via a third connecting plate (430). The second telescopic component (440) is fixedly connected to the connecting component (240).

10. The 3D printing equipment according to any one of claims 1-9, characterized in that, The platform (100) includes a platform body, a lifting component (110), and a tilting component (120). The lifting assembly (110) is located at the bottom of the platform body; The tilting component (120) includes a tilting plate (121) and a third telescopic member (122). The tilting plate (121) is rotatably connected to the platform body. The two ends of the third telescopic member (122) are rotatably connected to the bottom end of the tilting plate (121) and the platform (100), respectively. The raw material pool (400) is fixedly connected to the top end of the tilting plate (121).

Images