A 3D printing device

Abstract

The application provides a 3D printing device, which solves the problem of possible false triggering of a printing head of the 3D printing device, thereby affecting the reliability of the 3D printing device. The 3D printing device specifically comprises a support frame, a first control mechanism comprising a first control member, the first control member being arranged on the support frame along a first direction, a second control mechanism comprising a second control member, the second control member being arranged on the first control member along a second direction, a third control mechanism comprising a third control member, the third control member being arranged on the second control member along a third direction, the first direction, the second direction and the third direction being perpendicular to each other, a printing material output mechanism arranged on the third control member, a on-off control member connected with the printing material output mechanism, and a material rack arranged on the support frame. The application improves the reliability of the 3D printing device and the user experience.

Description

Technical Field

[0001] This utility model relates to a printing device, and more particularly to a 3D printing device. Background Technology

[0002] 3D printing, also known as additive manufacturing, is a type of rapid prototyping technology. It is a technology that uses 3D model files as a basis and employs bondable materials such as powdered metal, ceramics, or plastics to construct objects by printing layer by layer.

[0003] In today's manufacturing sector, 3D printing technology, as an innovative manufacturing process, is being used more and more widely. 3D printing equipment can quickly manufacture complex three-dimensional objects based on computer-aided design (CAD) models, offering high flexibility and customization capabilities, thus demonstrating enormous potential and value in numerous industries such as aerospace, automotive, medical, construction, and consumer goods.

[0004] There are many types of 3D printing equipment available, including fused deposition modeling (FDM), stereolithography (SLA), and selective laser sintering (SLS). These devices typically consist of key components such as a printing platform, print head, material delivery system, control system, and corresponding mechanical transmission structure, which work together to achieve layer-by-layer printing of objects.

[0005] Resetting the print head is a crucial step in the 3D printing process. After a printing task is completed, or if an interruption occurs during printing, the print head needs to be reset to its initial state, ready for the next print. However, existing 3D printing equipment suffers from a common problem after print head reset: the print head may trigger incorrectly due to software errors. This incorrect triggering is typically caused by the following reasons: 1. Software program vulnerabilities or anomalies During operation, the control software of 3D printing equipment may encounter issues such as code vulnerabilities, memory leaks, or data transmission errors, leading to the print head being incorrectly started after a reset. For example, when processing the end command of a printing task, the software may fail to correctly set the print head status to "reset complete" and instead incorrectly send a new printing command, thus triggering an erroneous print head activation.

[0006] 2. Communication interference or interruption In 3D printing equipment, the print head and the control host typically communicate via a communication interface for data transmission and command control. During the reset process, if the communication link is subjected to external interference, such as electromagnetic interference, signal attenuation, or a brief interruption, the print head may receive incorrect commands, causing it to start unexpectedly after the reset is complete.

[0007] 3. Hardware failure or aging While hardware failure is not the primary cause, in some cases, hardware components such as the printhead's drive circuitry and sensors may age or become damaged due to prolonged use. These hardware issues can cause the printhead to fail to respond correctly to control commands after a reset, or even trigger incorrectly without receiving a clear start command.

[0008] This issue of printhead mis-triggered printing brings numerous inconveniences and safety hazards to the use of 3D printing equipment. First, it leads to wasted printing material, as the printhead may print in the wrong position or direction when mis-triggered, thus wasting material. Second, mis-triggered printing may damage the printhead itself; for example, starting the printhead in the wrong position may cause it to collide with the printing platform or other components, damaging the printhead or the printing platform. Third, mis-triggered printing may also affect the lifespan and reliability of the printing equipment, reducing its performance and stability.

[0009] Therefore, there is an urgent need to propose an effective solution to address the problem of erroneous triggering after the print head resets in 3D printing equipment, in order to improve the reliability and stability of 3D printing equipment, reduce the occurrence of erroneous triggering of the print head, and thus improve the overall quality and efficiency of 3D printing. Utility Model Content

[0010] The purpose of this invention is to improve the reliability of 3D printing equipment.

[0011] To achieve the above objectives, this utility model proposes a 3D printing device, comprising: —Support frame; —A first control mechanism, including a first control element, wherein the first control element is adjustablely disposed on the support frame along a first direction; —A second control mechanism, including a second control element, wherein the second control element is adjustablely disposed on the first control element along a second direction; —A third control mechanism, including a third control element, wherein the third control element is adjustablely disposed on the second control element along a third direction; The first direction, the second direction, and the third direction are perpendicular to each other; —A printing material output mechanism, disposed on the third control component, includes a print head, the print head forming the outlet of the printing material output mechanism; —On / off control element, which is connected to the printing material output mechanism.

[0012] In a preferred embodiment, the 3D printing device is provided with a first circuit and a second circuit; the first circuit includes a first power supply, a printhead control switch, a first contact, a second contact, and an on / off control element; the second circuit includes a second power supply, a second switch, and an electromagnet; the on / off control element is located between the first contact and the second contact under the magnetic attraction of the electromagnet, and is in contact with the first contact and the second contact, thereby forming a closed circuit in series between the first power supply, the printhead control switch, and the on / off control element; wherein, the on / off control element is a conductive ferromagnetic material (in this application, "ferromagnetic material" refers to an object with spontaneous magnetization); the second power supply, the second switch, and the electromagnet form a closed circuit in series.

[0013] Preferably, after the second switch is turned on, the second circuit is connected, the electromagnet is energized and magnetically attracts the on / off control component, the two ends of the on / off control component are respectively connected to the first contact and the second contact, the first circuit is connected, the printhead control switch is turned on, and the printhead starts.

[0014] In a preferred embodiment, the 3D printing equipment further includes a material rack disposed on the support frame.

[0015] In a preferred embodiment, the first control mechanism further includes a first control structure, a second control structure, a third control structure, and a fourth control structure; the support frame has a first side and a second side disposed opposite to each other, the first control structure and the second control structure are spaced apart at the bottom of the first side, and the third control structure and the fourth control structure are spaced apart at the bottom of the second side, the first control structure, the second control structure, the third control structure, and the fourth control structure all extend along the first direction and are respectively connected to the first control member for driving the first control member to adjust its position along the first direction.

[0016] In a preferred embodiment, the first control element includes a first control block, a second control block, a third control block, and a fourth control block. The first control structure is driven to the first control block to drive the first control block to move along the first direction. The second control structure is driven to the second control block to drive the second control block to move along the first direction. The third control structure is driven to the third control block to drive the third control block to move along the first direction. The fourth control structure is driven to the fourth control block to drive the fourth control block to move along the first direction.

[0017] In a preferred embodiment, the first control structure includes a first drive motor, a first lead screw, a first base, and a first drive belt. One end of the first base is connected to the first drive motor, and the other end of the first base is connected to the bottom of the support frame. The output end of the first drive motor is connected to one end of the first drive belt, and the other end of the first drive belt is sleeved on one end of the first lead screw. The other end of the first lead screw passes through the first control block and is connected to the top of the support frame. The first lead screw is threadedly connected to the first control block. The second control structure includes a second drive motor, a second lead screw, a second base, and a second drive belt. One end of the second base is connected to the second drive motor, and the other end of the second base is connected to the bottom of the support frame. The output end of the second drive motor is connected to one end of the second drive belt, and the other end of the second drive belt is sleeved on one end of the second lead screw. The other end of the second lead screw passes through the second control block and is connected to the top of the support frame. The second lead screw is threadedly connected to the second control block. The third control structure includes a third drive motor, a third lead screw, a third base, and a third drive belt. One end of the third base is connected to the third drive motor, and the other end of the third base is connected to the bottom of the support frame. The output end of the third drive motor is connected to one end of the third drive belt, and the other end of the third drive belt is sleeved on one end of the third lead screw. The other end of the third lead screw passes through the third control block and is connected to the top of the support frame. The third lead screw is threadedly connected to the third control block. The fourth control structure includes a fourth drive motor, a fourth lead screw, a fourth base, and a fourth drive belt. One end of the fourth base is connected to the fourth drive motor, and the other end of the fourth base is connected to the bottom of the support frame. The output end of the fourth drive motor is connected to one end of the fourth drive belt, and the other end of the fourth drive belt is sleeved on one end of the fourth lead screw. The other end of the fourth lead screw passes through the fourth control block and is connected to the top of the support frame. The fourth lead screw is threadedly connected to the fourth control block.

[0018] In a preferred embodiment, the second control mechanism further includes a fifth control structure and a sixth control structure. The second control element includes a fifth control block and a sixth control block. The fifth control structure is drivenly connected to the fifth control block to drive the fifth control block to move along the second direction. The sixth control structure is drivenly connected to the sixth control block to drive the sixth control block to move along the second direction.

[0019] In a preferred embodiment, the fifth control structure includes a fifth drive motor, a fifth drive belt, a fifth base, a first slide rail, and a first connecting seat; the sixth control structure includes a sixth drive motor, a sixth drive belt, a sixth base, a second slide rail, and a second connecting seat. One end of the fifth base is connected to the fifth drive motor, and the other end of the fifth base is connected to one end of the first slide rail. The first connecting seat is disposed at the other end of the first slide rail. The output end of the fifth drive motor is connected to one end of the fifth drive belt, and the other end of the fifth drive belt is connected to the first connecting seat. The fifth drive belt is connected to the fifth control block to drive the fifth control block to move along the second direction on the first slide rail. One end of the sixth base is connected to the sixth drive motor, and the other end of the sixth base is connected to one end of the second slide rail. The second connecting seat is disposed at the other end of the second slide rail. The output end of the sixth drive motor is connected to one end of the sixth drive belt, and the other end of the sixth drive belt is connected to the second connecting seat. The sixth drive belt is connected to the sixth control block to drive the sixth control block to move along the second direction on the second slide rail.

[0020] In a preferred embodiment, the third control mechanism further includes a seventh control structure, which includes a seventh drive motor, a seventh drive belt, a seventh base, a third slide rail, and a third connecting seat. One end of the seventh base is connected to the seventh drive motor, and the other end of the seventh base is connected to one end of the third slide rail. The third connecting seat is disposed at the other end of the third slide rail. The output end of the seventh drive motor is connected to one end of the seventh drive belt, and the other end of the seventh drive belt is connected to the third connecting seat. The seventh drive belt is connected to the third control component to drive the third control component to move along the third direction on the third slide rail.

[0021] In a preferred embodiment, the 3D printing equipment further includes a storage component, which is fixedly connected to the second control mechanism.

[0022] In a preferred embodiment, the on / off control component and the storage component are engaged and connected. The first slide rail is further provided with a first slot, and the second slide rail is further provided with a second slot. The storage component can be disposed in the first slot or the second slot, and the on / off control component can be removed from the storage component along the second direction.

[0023] In a preferred embodiment, the printing material output mechanism includes a cover plate, a throat, a heat sink, a heating element, a material output structure, and a print head, wherein the cover plate is connected to the third control element; One end of the feeding line is connected to the material rack, and the other end is connected to the feed end of the throat tube. After the throat tube passes through the cavity of the cover plate and the heat sink in sequence, its discharge end is connected to the print head. The printing material output structure is disposed within the cavity of the cover plate and is used to drive the printing material in the throat to be conveyed to the print head. The heat dissipation component is disposed on the side of the throat near the feed end to prevent heat from being conducted to the feed end of the throat. The heating component is disposed on the side of the throat near the print head to heat and melt the printing material in the throat.

[0024] In a preferred embodiment, the printing material output structure includes a material output motor, a drive wheel, and a driven wheel. The material output motor is mounted on the cover plate, and its output end is connected to the drive wheel. Both the drive wheel and the driven wheel are rotatably connected to the inner wall of the cover plate via a rotating shaft and are located on opposite sides of the throat. The surfaces of the drive wheel and the driven wheel form a clamping space to fit the printing material inside the throat. When the drive wheel rotates, it drives the driven wheel to rotate synchronously, causing the printing material to move along the throat towards the print head.

[0025] Compared with the prior art, the technical solution of this utility model has the following beneficial effects: To improve the reliability of 3D printing equipment, this invention provides a 3D printing device. The device utilizes a first control mechanism, a second control mechanism, and a third control mechanism to control the three-dimensional operation of the printing material output mechanism, thereby achieving 3D printing. Simultaneously, during printing, an on / off control component prevents erroneous triggering of the print head in the printing material output mechanism, thus improving the reliability of the 3D printing equipment and enhancing the user experience. Attached Figure Description

[0026] The accompanying drawings, which constitute a part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1This is a schematic diagram of the structure of a 3D printing device according to a preferred embodiment of the present invention.

[0027] Figure 2 This is another perspective structural schematic diagram of the 3D printing equipment according to a preferred embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram of the fifth control structure of a preferred embodiment of the present invention.

[0029] Figure 4 This is a schematic diagram of the sixth control structure of a preferred embodiment of the present invention.

[0030] Figure 5 This is a schematic diagram of the seventh control structure of a preferred embodiment of the present invention.

[0031] Figure 6 This is a schematic diagram of the printing material output mechanism of a preferred embodiment of the present invention.

[0032] Figure 7 This is a perspective view of the printing material output mechanism of a preferred embodiment of the present invention.

[0033] Figure 8 This is an enlarged schematic diagram of the on / off control component and the storage component of a preferred embodiment of the present invention.

[0034] Figure 9 This is a schematic diagram of the first and second circuits of a preferred embodiment of the present invention.

[0035] Legend: 1. Support frame; 2. First control mechanism; 21. First control component; 22. First control structure; 23. Second control structure; 24. Third control structure; 25. Fourth control structure; 211. First control block; 212. Second control block; 213. Third control block; 214. Fourth control block; 221. First drive motor; 222. First lead screw; 223. First base; 224. First drive belt; 231. Second drive motor; 232. Second lead screw; 233. Second base; 234. Second drive belt; 241. Third drive motor; 242. Third lead screw; 243. Third base; 244. Third drive belt; 251. Fourth drive motor; 252. Fourth lead screw; 253. Fourth base; 254. Fourth drive belt; 3. Second control mechanism; 31. Second control component; 311. Fifth control block; 312. Sixth control block; 32. Fifth control structure; 33. Sixth control structure; 321. Fifth drive motor; 322. Fifth drive belt; 323. Fifth base; 324. First slide rail; 325. First connecting seat; 331. Sixth drive motor; 332. Sixth drive belt; 333. Sixth base; 334. Second slide rail; 325. Second connecting seat; 4. Third control mechanism; 41. Third control component; 42. Seventh control structure; 421. Seventh drive motor; 422. Seventh drive belt; 423. Seventh base; 424. Third slide rail; 425. Third connecting seat; 5. Printing material output mechanism; 51. Cover plate; 52. Throat tube; 53. Heat sink; 54. Heating element; 55. Printing material output structure; 56. Print head; 551. Drive wheel; 552. Driven wheel; 6. On / off control components; 7. Material rack; 81. First power supply; 82. Printhead control switch; 83. First contact; 84. Second contact; 85. Second power supply; 86. Electromagnet; 87. Second switch; 9. Storage components. Detailed Implementation

[0036] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a system, product, or device that includes a series of units is not necessarily limited to those units explicitly listed, but may include other units not explicitly listed or inherent to such products or devices.

[0038] Example: like Figures 1-9 As shown, this embodiment provides a 3D printing device, including: a support frame 1, a first control mechanism 2, a second control mechanism 3, a third control mechanism 4, a printing material output mechanism 5, an on / off control component 6, and a material rack 7.

[0039] The first control mechanism 2 includes a first control element 21, which is adjustablely positioned on the support frame 1 along a first direction. The second control structure 23 includes a second control element 31, which is adjustablely positioned on the first control element 21 along a second direction. The third control mechanism 4 includes a third control element 41, which is adjustablely positioned on the second control element 31 along a third direction. The printing material output mechanism 5 is positioned on the third control element 41. Furthermore, the first direction, the second direction, and the third direction are perpendicular to each other. This arrangement allows the printing material output mechanism 5 to have degrees of freedom in the first direction, the second direction, and the third direction (e.g., ...). Figure 1 , Figure 2 As shown in the figure, 3D printing can be achieved.

[0040] Meanwhile, the 3D printing equipment described in this embodiment also includes an on / off control component 6, which is connected to the printing material output mechanism 5 and moves together with the printing material output mechanism 5.

[0041] In this embodiment, the material rack 7 contains the printing material required by the 3D printing equipment. The material rack 7 is located on the top of the support frame 1, and the printing material can flow directly into the printing material output mechanism 5 to complete the 3D printing through the action of gravity.

[0042] Optionally, the first control mechanism 2 further includes a first control structure 22, a second control structure 23, a third control structure 24, and a fourth control structure 25. As shown in the figure, the support frame 1 has a first side and a second side disposed opposite to each other. The first control structure 22 and the second control structure 23 are disposed at the bottom of the first side, and the third control structure 24 and the fourth control structure 25 are disposed at the bottom of the second side. The driving directions of the first control structure 22, the second control structure 23, the third control structure 24, and the fourth control structure 25 are all along the first direction.

[0043] The first control unit 21 includes a first control block 211, a second control block 212, a third control block 213, and a fourth control block 214. The first control structure 22 can drive the first control block 211 to move along the first direction, the second control structure 23 can drive the second control block 212 to move along the first direction, the third control structure 24 can drive the third control block 213 to move along the first direction, and the fourth control structure 25 can drive the fourth control block 214 to move along the first direction.

[0044] By controlling four corresponding control blocks to move along the first direction through four control structures, the second control mechanism 3, the third control mechanism 4 and the printing material output mechanism 5 are moved in the first direction, which helps to improve the stability of the printing output of the printing material output mechanism 5.

[0045] Optionally, the first control structure 22 includes a first drive motor 221, a first lead screw 222, a first base 223, and a first drive belt 224. One end of the first base 223 is connected to the first drive motor 221, and the other end of the first base 223 is connected to the bottom of the support frame 1. The output end of the first drive motor 221 is connected to one end of the first drive belt 224, and the other end of the first drive belt 224 is connected to one end of the first lead screw 222. The other end of the first lead screw 222 passes through the first control block 211 and is connected to the top of the support frame 1. Specifically, the first lead screw 222 and the first control block 211 are threaded together.

[0046] Optionally, the second control structure 23 includes a second drive motor 231, a second lead screw 232, a second base 233, and a second drive belt 234; the third control structure 24 includes a third drive motor 241, a third lead screw 242, a third base 243, and a third drive belt 244; and the fourth control structure 25 includes a fourth drive motor 251, a fourth lead screw 252, a fourth base 253, and a fourth drive belt 254. The connection relationships between the components of the second control structure 23, the third control structure 24, and the fourth control structure 25 are similar to those of the first control structure 22, and therefore will not be described in detail.

[0047] When the 3D printing equipment described in this embodiment is running, if the first direction needs to be adjusted, the corresponding control structure can be activated according to the adjustment requirements: When the first drive motor 221 is activated, the first drive motor 221 starts to rotate and outputs power through the output end of the first drive motor 221 to drive the first drive belt 224. The first drive belt 224 drives the first lead screw 222 to rotate. The rotation of the first lead screw 222 drives the first control block 211 to move along the axis of the first lead screw 222 (i.e., the first direction). Similarly, when the second drive motor 231, the third drive motor 241 or the fourth drive motor 251 is activated, the corresponding second control structure 23, the third control structure 24 or the fourth control structure 25 will drive the second control block 212, the third control block 213 or the fourth control block 214 to move along the first direction with the same driving logic as the first control structure 22.

[0048] Optionally, the second control mechanism 3 further includes a fifth control structure 32 and a sixth control structure 33. The second control element 31 includes a fifth control block 311 and a sixth control block 312. The fifth control structure 32 is driven to the fifth control block 311 to drive the fifth control block 311 to move along the second direction. The sixth control structure 33 is driven to the sixth control block 312 to drive the sixth control block 312 to move along the second direction.

[0049] Specifically, the fifth control structure 32 includes a fifth drive motor 321, a fifth drive belt 322, a fifth base 323, a first slide rail 324, and a first connecting seat 325. One end of the fifth base 323 is connected to the fifth drive motor 321, and the other end of the fifth base 323 is connected to one end of the first slide rail 324. The first connecting seat 325 is disposed at the other end of the first slide rail 324. The output end of the fifth drive motor 321 is connected to one end of the fifth drive belt 322, and the other end of the fifth drive belt 322 is connected to the first connecting seat 325. The fifth drive belt 322 is drive-connected to the fifth control block 311 to drive the fifth control block 311 to move along the second direction on the first slide rail 324.

[0050] Specifically, the sixth control structure 33 includes a sixth drive motor 331, a sixth drive belt 332, a sixth base 333, a second slide rail 334, and a second connecting seat 325. The connection relationships between the various components in the sixth control structure 33 are similar to those in the fifth control structure 32, and therefore will not be described in detail.

[0051] When the 3D printing equipment described in this embodiment is running, if the second direction adjustment is required, the fifth drive motor 321 can be turned on. The fifth drive motor 321 starts to rotate and outputs power through the output end of the fifth drive motor 321, driving the fifth drive belt 322 to move. The fifth drive belt 322 drives the second control component 31 to slide on the first slide rail 324 (that is, drives the second control component 31 to move along the second direction).

[0052] Optionally, the third control mechanism 4 further includes a seventh control structure 42, which includes a seventh drive motor 421, a seventh drive belt 422, a seventh base 423, a third slide rail 424, and a third connecting seat 425. One end of the seventh base 423 is connected to the seventh drive motor 421, and the other end of the seventh base 423 is connected to one end of the third slide rail 424. The third connecting seat 425 is disposed at the other end of the third slide rail 424. The output end of the seventh drive motor 421 is connected to one end of the seventh drive belt 422, and the other end of the seventh drive belt 422 is connected to the third connecting seat 425. The seventh drive belt 422 is connected to the third control member 41 to drive the third control member 41 to move along the third direction on the third slide rail 424.

[0053] When the 3D printing equipment described in this embodiment is running, if the third-party adjustment is required, the seventh drive motor 421 can be turned on. The seventh drive motor 421 starts to rotate and outputs power through the output end of the seventh drive motor 421, driving the seventh drive belt 422 to move. The seventh drive belt 422 drives the third control component 41 to slide on the third slide rail 424 (that is, drives the third control component 41 to move along the third-party direction).

[0054] Optionally, the 3D printing equipment further includes a storage component 9 for storing the on / off control component 6, the storage component 9 being fixedly connected to the second control mechanism 3. Specifically, the storage component 9 and the on / off control component 6 are connected by a snap-fit ​​mechanism.

[0055] The first slide rail 324 is further provided with a first groove, and the second slide rail 334 is further provided with a second groove. The storage component 9 can be disposed in either the first groove or the second groove. In this embodiment, the storage component 9 is disposed in the second groove.

[0056] In this embodiment, the 3D printing equipment is provided with a first circuit and a second circuit; the first circuit includes a first power supply 81, a printhead control switch 82, a first contact 83, a second contact 84, and an on / off control element 6; the second circuit includes a second power supply 85, a second switch 87, and an electromagnet 86; the on / off control element 6 is located between the first contact 83 and the second contact 84 under the magnetic attraction of the electromagnet 86, and is in contact with the first contact 83 and the second contact 84, thereby forming a closed circuit in series between the first power supply 81, the printhead control switch 82, and the on / off control element 6; wherein, the on / off control element 6 is a conductive ferromagnetic material; the second power supply 85, the second switch 87, and the electromagnet 86 form a closed circuit in series.

[0057] After the second switch 87 is turned on, the second circuit is connected, the electromagnet 86 is energized and magnetically attracts the on / off control component 6. The two ends of the on / off control component 6 are respectively connected to the first contact 83 and the second contact 84. The first circuit is connected, the print head control switch 82 is turned on, and the print head 56 is started.

[0058] If the printhead control switch 82 is mistakenly closed, the printhead 56 will be erroneously triggered if there is no on / off control element 6. By setting up the first and second circuits, simply opening the printhead control switch 82 is insufficient to power on the printhead 56; the second switch must also be closed for the printhead 56 to begin operation. This dual-circuit design effectively prevents the printhead 56 from erroneously triggering.

[0059] Optionally, the printing material output mechanism 5 includes a cover plate 51, a throat 52, a heat sink 53, a heating element 54, a material output structure, and a print head 56. The cover plate 51 and the third control element 41 are fixedly connected. One end of the feed line is connected to the material rack 7, and the other end is connected to the feed end of the throat 52. The throat 52 passes through the cavity of the cover plate 51 and the heat sink 53 in sequence, and its output end is connected to the print head 56. The printing material output structure 55 is disposed in the cavity of the cover plate 51 and is used to drive the printing material in the throat 52 to be conveyed to the print head 56. The heat sink 53 is disposed on the side of the throat 52 near the feed end and is used to prevent heat from being conducted to the feed end of the throat 52. The heating element 54 is disposed on the side of the throat 52 near the print head 56 and is used to heat and melt the printing material in the throat 52.

[0060] Optionally, the printing material output structure 55 includes a material output motor (not shown in the figure), a drive wheel 551, and a driven wheel 552. The material output motor is mounted on the cover plate 51, and the output end of the material output motor is connected to the drive wheel 551. The drive wheel 551 and the driven wheel 552 are rotatably connected to the inner wall of the cover plate 51 through a rotating shaft, and are respectively located on both sides of the throat tube 52. The wheel surfaces of the drive wheel 551 and the driven wheel 552 form a clamping space to fit the printing material in the throat tube 52. When the drive wheel 551 rotates, it drives the driven wheel 552 to rotate synchronously, so that the printing material moves along the throat tube 52 towards the print head 56 to output the printing material in the throat tube 52.

[0061] The specific embodiments of this utility model have been described in detail above, but they are only examples, and this utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to this utility model are also within the scope of this utility model. Therefore, all equivalent changes and modifications made without departing from the spirit and scope of this utility model should be covered within the scope of this utility model.

Claims

1. A 3D printing device, characterized in that, include: Support frame; The first control mechanism includes a first control element, which is adjustablely disposed on the support frame along a first direction; The second control mechanism includes a second control element, which is adjustablely disposed on the first control element along a second direction; The third control mechanism includes a third control element, which is adjustablely disposed on the second control element along a third direction; The first direction, the second direction, and the third direction are perpendicular to each other; A printing material output mechanism is disposed on the third control component. The printing material output mechanism is used to extrude printing material and includes a print head, which forms the outlet of the printing material output mechanism. An on / off control element, which is connected to the printing material output mechanism; A material rack, used to supply printing materials, is disposed on the support frame.

2. The 3D printing equipment according to claim 1, characterized in that, The 3D printing equipment is provided with a first circuit and a second circuit; the first circuit includes a first power supply, a printhead control switch, a first contact, a second contact, and an on / off control element; the second circuit includes a second power supply, a second switch, and an electromagnet; the on / off control element is located between the first contact and the second contact under the magnetic attraction of the electromagnet, and is in contact with the first contact and the second contact, thereby forming a closed circuit in series between the first power supply, the printhead control switch, and the on / off control element; wherein, the on / off control element is a conductive ferromagnetic material; the second power supply, the second switch, and the electromagnet form a closed circuit in series.

3. The 3D printing equipment according to claim 1, characterized in that, The first control mechanism further includes a first control structure, a second control structure, a third control structure, and a fourth control structure; the support frame has a first side and a second side disposed opposite to each other, the first control structure and the second control structure are spaced apart at the bottom of the first side, the third control structure and the fourth control structure are spaced apart at the bottom of the second side, and the first control structure, the second control structure, the third control structure and the fourth control structure all extend along the first direction.

4. The 3D printing equipment according to claim 3, characterized in that, The first control unit includes a first control block, a second control block, a third control block, and a fourth control block. The first control structure is driven to the first control block to drive the first control block to move along the first direction. The second control structure is driven to the second control block to drive the second control block to move along the first direction. The third control structure is driven to the third control block to drive the third control block to move along the first direction. The fourth control structure is driven to the fourth control block to drive the fourth control block to move along the first direction.

5. The 3D printing equipment according to claim 4, characterized in that, The first control structure includes a first drive motor, a first lead screw, a first base, and a first drive belt. One end of the first base is connected to the first drive motor, and the other end of the first base is connected to the bottom of the support frame. The output end of the first drive motor is connected to one end of the first drive belt, and the other end of the first drive belt is sleeved on one end of the first lead screw. The other end of the first lead screw passes through the first control block and is connected to the top of the support frame. The first lead screw and the first control block are threaded together. The second control structure includes a second drive motor, a second lead screw, a second base, and a second drive belt. One end of the second base is connected to the second drive motor, and the other end of the second base is connected to the bottom of the support frame. The output end of the second drive motor is connected to one end of the second drive belt, and the other end of the second drive belt is sleeved on one end of the second lead screw. The other end of the second lead screw passes through the second control block and is connected to the top of the support frame. The second lead screw and the second control block are threaded together. The third control structure includes a third drive motor, a third lead screw, a third base, and a third drive belt. One end of the third base is connected to the third drive motor, and the other end of the third base is connected to the bottom of the support frame. The output end of the third drive motor is connected to one end of the third drive belt, and the other end of the third drive belt is sleeved on one end of the third lead screw. The other end of the third lead screw passes through the third control block and is connected to the top of the support frame. The third lead screw and the third control block are threaded together. The fourth control structure includes a fourth drive motor, a fourth lead screw, a fourth base, and a fourth drive belt. One end of the fourth base is connected to the fourth drive motor, and the other end of the fourth base is connected to the bottom of the support frame. The output end of the fourth drive motor is connected to one end of the fourth drive belt, and the other end of the fourth drive belt is sleeved on one end of the fourth lead screw. The other end of the fourth lead screw passes through the fourth control block and is connected to the top of the support frame. The fourth lead screw and the fourth control block are threaded together.

6. The 3D printing equipment according to claim 1, characterized in that, The second control mechanism further includes a fifth control structure and a sixth control structure. The second control element includes a fifth control block and a sixth control block. The fifth control structure is driven to the fifth control block to drive the fifth control block to move along the second direction. The sixth control structure is driven to the sixth control block to drive the sixth control block to move along the second direction.

7. The 3D printing equipment according to claim 6, characterized in that, The fifth control structure includes a fifth drive motor, a fifth drive belt, a fifth base, a first slide rail, and a first connecting seat; the sixth control structure includes a sixth drive motor, a sixth drive belt, a sixth base, a second slide rail, and a second connecting seat. One end of the fifth base is connected to the fifth drive motor, and the other end of the fifth base is connected to one end of the first slide rail. The first connecting seat is disposed at the other end of the first slide rail. The output end of the fifth drive motor is connected to one end of the fifth drive belt, and the other end of the fifth drive belt is connected to the first connecting seat. The fifth drive belt is connected to the fifth control block to drive the fifth control block to move along the second direction on the first slide rail. One end of the sixth base is connected to the sixth drive motor, and the other end of the sixth base is connected to one end of the second slide rail. The second connecting seat is disposed at the other end of the second slide rail. The output end of the sixth drive motor is connected to one end of the sixth drive belt, and the other end of the sixth drive belt is connected to the second connecting seat. The sixth drive belt is connected to the sixth control block to drive the sixth control block to move along the second direction on the second slide rail.

8. The 3D printing equipment according to claim 1, characterized in that, The third control mechanism also includes a seventh control structure, which includes a seventh drive motor, a seventh drive belt, a seventh base, a third slide rail, and a third connecting seat. One end of the seventh base is connected to the seventh drive motor, and the other end of the seventh base is connected to one end of the third slide rail. The third connecting seat is disposed at the other end of the third slide rail. The output end of the seventh drive motor is connected to one end of the seventh drive belt, and the other end of the seventh drive belt is connected to the third connecting seat. The seventh drive belt is connected to the third control component to drive the third control component to move along the third direction on the third slide rail.

9. The 3D printing equipment according to claim 7, characterized in that, The 3D printing equipment also includes a storage component, which is fixedly connected to the second control mechanism; The on / off control component and the storage component are engaged and connected. The first slide rail is also provided with a first slot, and the second slide rail is also provided with a second slot. The storage component can be disposed in the first slot or the second slot. The on / off control component can be removed from the storage component along the second direction.

10. The 3D printing equipment according to claim 1, characterized in that, The printing material output mechanism includes a cover plate, a throat, a heat sink, a heating element, a material output structure, and a print head. The cover plate is connected to the third control component. One end of the feeding line is connected to the material rack, and the other end is connected to the feed end of the throat tube. After the throat tube passes through the cavity of the cover plate and the heat sink in sequence, its discharge end is connected to the print head. The printing material output structure is disposed within the cavity of the cover plate and is used to drive the printing material in the throat to be conveyed to the print head. The heat dissipation component is disposed on the side of the throat near the feed end and is used to prevent heat from being conducted to the feed end of the throat. The heating component is disposed on the side of the throat near the print head and is used to heat and melt the printing material in the throat. The printing material output structure includes a material output motor, a drive wheel, and a driven wheel. The material output motor is mounted on the cover plate, and its output end is connected to the drive wheel. Both the drive wheel and the driven wheel are rotatably connected to the inner wall of the cover plate via a rotating shaft and are located on opposite sides of the throat. The surfaces of the drive wheel and the driven wheel form a clamping space to fit the printing material inside the throat. When the drive wheel rotates, it drives the driven wheel to rotate synchronously, causing the printing material to move along the throat towards the print head.

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