A multi-material 3D printing multi-channel powder clearing and dropping device

Abstract

The present application relates to the technical field of 3D printing, and discloses a multi-channel powder cleaning and falling device for multi-material 3D printing, which comprises a supporting assembly, the supporting assembly comprises a supporting frame, two electric sliding rails one installed in the supporting frame, a power element one arranged above the supporting frame and a scraper arranged on the power element one. The present application has the beneficial effect that through the mutual cooperation between the supporting assembly, the powder cleaning and falling assembly and the adjusting assembly, precise material falling and precise shaping at different positions can be realized through multiple powder falling elements, the base powder at the corresponding position can be sucked through the powder suction head, the soft tubes can be collected through the adjusting assembly, the movement of the soft tubes is prevented, the soft tubes are prevented from being stacked or folded, the vacuum pump is prevented from being damaged, and the four soft tubes are prevented from being entangled when the soft tubes are collected, so that the soft tube pipeline is prevented from being blocked.

Description

Technical Field

[0001] This invention relates to the field of 3D printing technology, and in particular to a multi-channel powder cleaning and powder removal device for multi-material 3D printing. Background Technology

[0002] Additive manufacturing technology, though only a little over 30 years old since its inception in the late 1980s, has developed rapidly, especially in the last decade, becoming one of the cutting-edge and hot topics in the field of mechanical engineering. Metals and alloys, as the most widely used structural materials in practical engineering, give metal additive manufacturing technology a unique and important position in the 3D printing field. Laser powder bed melting technology, characterized by its fine powder layer thickness and extremely small beam size, is suitable for small-batch precision forming of complex metal components. It is particularly suitable for the direct and rapid prototyping of complex structural prototypes, irregularly shaped parts, and molds in the aerospace field, demonstrating clear application needs and development prospects.

[0003] In existing technologies, most 3D printing involves forming two compartments in the dose dispenser to allow different materials to be deposited in different directions. This is limited to simple combinations of two materials and cannot be used for laser 3D printing of complex structural functional parts. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above or prior art, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a multi-channel powder cleaning and powder removal device for multi-material 3D printing, which can solve the problem that the existing technology cannot form complex structural functional parts by laser 3D printing.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a multi-channel powder cleaning and powder dispensing device for multi-material 3D printing, comprising a support assembly, the support assembly including a support frame, two electric slide rails I installed in the support frame, a power component I disposed above the support frame, and a scraper disposed on the power component I; a powder cleaning and powder dispensing assembly, the powder cleaning and powder dispensing assembly including two lifts fixed to the power component I, a mounting plate installed on one side of the lifts, a power component II disposed in the mounting plate, multiple fixing pieces installed on one of the power components II, and multiple powder dispensing pieces installed on the other power component II; and an adjustment assembly, the adjustment assembly including a fixing piece disposed on the support frame, a power component IV disposed on one side of the fixing piece, a take-up and release piece disposed in the fixing piece, and a plug rod disposed in the power component IV, the fixing piece, the power component IV, the take-up and release piece, and the plug rod being used in cooperation.

[0008] As a preferred embodiment of the multi-channel powder cleaning and powder removal device for multi-material 3D printing of the present invention, wherein: a placement box is fixedly connected to the top of the support frame, an electric slide rail is installed on the support frame, a through hole is opened on the top of the placement box, and multiple slots are evenly opened in the through hole, a fixing strip is fixedly connected to one side of the placement box, and a filter box is installed on the fixing strip, a flexible tube and a five-way pipe are fixedly connected to the filter box respectively, and the five-way pipe is fixedly connected to a vacuum pump.

[0009] As a preferred embodiment of the multi-channel powder cleaning and powder removal device for multi-material 3D printing of the present invention, wherein: the electric slide rail is fixed to the support frame, and a fixed frame is provided on the electric slide rail; a support rod is fixedly connected to one side of the fixed frame; two forming cylinders and a waste cylinder are provided at the bottom of the placement box; and the forming cylinder is fixed to one end of the support rod.

[0010] As a preferred embodiment of the multi-channel powder cleaning and powder removal device for multi-material 3D printing of the present invention, the power component includes an electric guide rail 1 and an electric guide rail 2 fixed to the bottom of the inner side of the placement box, and an electric guide rail 3 fixed to one side of the placement box. The electric guide rail 1 and the electric guide rail 2 are connected by a belt. The scraper is installed on the electric guide rail 3. Both the electric guide rail 1 and the electric guide rail 2 are equipped with a sliding seat 1. The top of the sliding seat 1 is fixedly connected to an electric guide rail 4, and the electric guide rail 4 is slidably connected to two sliding seats 2.

[0011] As a preferred embodiment of the multi-channel powder cleaning and powder removal device for multi-material 3D printing according to the present invention, the two lifting machines are respectively fixed to two sliding seats. A mounting plate is provided on one side of the lifting machine, and the mounting plate is fixed to one side of the lifting machine by a placement plate. The power component includes a servo motor mounted on one side of the mounting plate and a rotating platform disposed above the mounting plate. A worm gear is fixedly connected to the output end of the servo motor. A worm wheel is rotatably connected inside the mounting plate, and the worm wheel cooperates with the servo motor. The rotating platform is fixed to the worm wheel.

[0012] As a preferred embodiment of the multi-channel powder cleaning and powder dropping device for multi-material 3D printing according to the present invention, wherein: multiple fixing plates are fixed to one of the rotating platforms, a clamping block is fixedly connected to one side of each fixing plate, and a powder suction head is provided in the clamping block, the powder suction head is fixed to a flexible tube, multiple powder dropping components are fixed to another rotating platform, each powder dropping component includes a powder storage bin, a power component three installed on one side of the rotating platform, and a funnel disposed below the powder storage bin, a fixed box is fixedly connected below the powder storage bin; the power component three includes a servo motor two fixed to one side of the rotating platform, fixed plates fixed to both ends of the fixed box, and a rotating shaft rotating on the fixed plates, a gear one fixedly sleeved at the output end of the servo motor two, a gear two fixedly sleeved at one end of the rotating shaft, and the gear two meshes with the gear one.

[0013] As a preferred embodiment of the multi-channel powder cleaning and powder removal device for multi-material 3D printing according to the present invention, the fixing component includes an outer ring rotating in a through hole, a groove in the outer ring, a spring disposed in the groove, and a locking block and a moving block sliding in the groove. The outer ring has two grooves, one of which is connected to the groove. The two ends of the spring are respectively fixed to the inner wall of the groove and one side of the locking block. The moving block slides with the locking block. A guide groove is provided on one side of the outer ring.

[0014] As a preferred embodiment of the multi-channel powder cleaning and powder removal device for multi-material 3D printing according to the present invention, the power component four includes a mounting plate one fixed to one side of the outer ring, a gear three rotating on one side of the outer ring, and a servo motor three mounted on the mounting plate one. The output end of the servo motor three is fixedly connected to the gear four, and the gear four meshes with the gear three. The top of the gear four is provided with a sliding groove one, and a slider two is slidably connected in the sliding groove one. The slider two is fixedly connected to a gear five, and the gear five rotates at the output end of the servo motor three. The gear three is fixedly connected to the slider one.

[0015] As a preferred embodiment of the multi-channel powder cleaning and powder dropping device for multi-material 3D printing according to the present invention, the receiving and releasing component includes an inner disk disposed in a fixing component, a rack fixed to one side of the inner disk, and two sliders three fixed to the outer ring of the inner disk. The sliders three are adapted to the groove one. One of the sliders three has an insertion hole. The inner disk has multiple through holes two, and the through holes two are adapted to the flexible tube. A fixing block is fixedly connected to one side of the inner disk, and multiple rotating rods are rotatably connected to the fixing block. A roller is fixedly sleeved on the outer ring of the rotating rod. Two of the rotating rods are connected by a belt two for transmission. A mounting plate two is fixedly connected to one side of the fixing block, and a servo motor four is mounted on the mounting plate two. The output end of the servo motor four is fixed to one of the rotating rods.

[0016] As a preferred embodiment of the multi-channel powder cleaning and powder removal device for multi-material 3D printing of the present invention, the insert rod is movably sleeved on the inner ring of the gear three, the outer ring of the insert rod has two sliding grooves two and two sliding grooves three, and the two sliding grooves three intersect each other. The two sliding grooves three are connected to the two sliding grooves two. A lever is provided in the sliding groove three. The lever and the slider one are adapted to the sliding groove three. The insert rod is adapted to the insertion hole. A guide strip is fixedly connected to one side of the insert rod, and the guide strip is adapted to the guide groove.

[0017] The beneficial effects of this invention are as follows: Through the cooperation of the support component, the powder cleaning and discharging component, and the adjustment component, this invention can achieve precise material discharge and precise forming at different positions through multiple powder discharging components. At the same time, the powder suction head can pick up the base powder at the corresponding position, and the adjustment component can retract the hose to prevent the hose from piling up or folding when it moves, which could damage the vacuum pump. It can also prevent the four hoses from getting tangled when retracting the hose, which could cause the hose pipeline to become blocked. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 This is a schematic diagram of the structure of a multi-channel powder cleaning and powder removal device for multi-material 3D printing.

[0020] Figure 2 This is a structural schematic diagram of the power component.

[0021] Figure 3 This is a partial structural diagram of the fixing plate.

[0022] Figure 4 This is a schematic diagram of the structure of the second power component.

[0023] Figure 5 This is a partial structural diagram of the powder removal and dust removal component.

[0024] Figure 6 This is a schematic diagram of the powder-feeding component.

[0025] Figure 7 This is a structural schematic diagram of the third power component.

[0026] Figure 8 This is a schematic diagram of the adjustment component.

[0027] Figure 9 This is a partial structural diagram of the box.

[0028] Figure 10 This is a schematic diagram of the adjustment component.

[0029] Figure 11 This is a cross-sectional structural diagram of the fastener.

[0030] Figure 12 This is a structural schematic diagram of power component four.

[0031] Figure 13 This is a partial cross-sectional structural diagram of the power component four.

[0032] Figure 14 This is a front structural diagram of the retractable parts.

[0033] Figure 15 This is a schematic diagram of the reverse side structure of the receiving / releasing component.

[0034] Figure 16 This is a schematic diagram of the insert rod.

[0035] Figure 17 This is a partial structural diagram of the insertion rod. Detailed Implementation

[0036] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0039] Example 1

[0040] Reference Figures 1-2 This is the first embodiment of the present invention, which provides a multi-channel powder cleaning and powder removal device for multi-material 3D printing. The device includes a support assembly 100, which comprises a support frame 101, two electric slide rails 102 mounted in the support frame 101, a power component 103 disposed above the support frame 101, and a scraper 104 disposed on the power component 103. The powder cleaning and powder removal assembly 200 includes two lifts 201 fixed to the power component 103, a mounting plate 202 mounted on one side of the lifts 201, a second power component 203 disposed in the mounting plate 202, multiple fixing plates 204 mounted on one of the second power components 203, and a fixing plate 204 mounted on the other... Multiple powder-dropping components 205 on the power component 203; adjustment component 300, which includes a fixing component 301 set on the support frame 101, a power component 4 302 installed on one side of the fixing component 301, a take-up and release component 303 set in the fixing component 301, and a plug 304 installed in the power component 4 302. The fixing component 301, the power component 4 302, the take-up and release component 303 and the plug 304 work together. Through the action of the power component 103, the movement of the scraper 104 and the lifting platform 201 can be controlled. The object to be 3D printed can be printed accurately. The scraper 104 can scrape away the powder dripping in the placement box 101a to ensure the cleanliness of the placement box 101a.

[0041] Specifically, a placement box 101a is fixedly connected to the top of the support frame 101. An electric slide rail 102 is installed on the support frame 101. A through hole 101c is opened on the top of the placement box 101a, and multiple slots 101d are evenly opened in the through hole 101c. A fixing strip 204d is fixedly connected to one side of the placement box 101a, and a filter box 204e is installed on the fixing strip 204d. A hose 204a and a five-way pipe are fixedly connected to the filter box 204e. The five-way pipe is fixedly connected to the vacuum pump 101b. Through the action of the support rod 102b, the base powder can be sucked up through the five-way pipe and hose 204a before 3D printing. The filter box 204e is equipped with multiple layers of filter screen. The sucked base powder can be stored in the filter box 204e through the connection between the filter box 204e and the hose 204a, which facilitates the unified cleaning of the base powder.

[0042] Specifically, the electric slide rail 102 is fixed to the support frame 101, and a fixed frame 102a is provided on the electric slide rail 102. A support rod 102b is fixedly connected to one side of the fixed frame 102a. Two forming cylinders 102c and a waste cylinder 102d are provided at the bottom of the placement box 101a. The forming cylinder 102c is fixed to one end of the support rod 102b. The fixed frame 102a can be moved by the electric slide rail 102, thereby driving the forming cylinder 102c to move, which facilitates the removal of the printed object in the forming cylinder 102c. The dirt scraped up by the scraper 104 can fall out of the device through the waste cylinder 102d.

[0043] Specifically, the power component 103 includes an electric guide rail 103a and an electric guide rail 2 103b fixed to the bottom inner side of the placement box 101a, and an electric guide rail 3 103c fixed to one side of the placement box 101a. The scraper 104 is installed on the electric guide rail 3 103c. Both the electric guide rail 103a and the electric guide rail 2 103b are equipped with a sliding seat 103d, and the top of the sliding seat 103d is fixedly connected to an electric guide rail 4 103e. The electric guide rail 4 103e is slidably connected to two... The sliding seat 103f can move the electric guide rail 103e via the electric guide rail 103a and the electric guide rail 103b. The electric guide rail 103e can control the movement of the two sliding seats 103f via the device controller, ensuring that the fixed piece 204 and the powder dropper 205 can move to the appropriate position, which facilitates 3D printing of objects. The electric guide rail 103c can drive the scraper 104 to move back and forth, so as to clean the inside of the placement box 101a.

[0044] In use, the controller activates electric guide rails 103a and 103b, thereby controlling the movement distance of electric guide rail 103e. This allows for precise movement of electric guide rail 103e to the desired 3D printing position. Furthermore, the controller's control of electric guide rail 103e enables the two sliding blocks 103f to move accurately to different positions, achieving precise printing of the object. Electric guide rail 103c drives the scraper 104 to reciprocate, cleaning the interior of the placement box 101a. 3D printing takes place in the forming cylinder 102c. After printing is complete, the printed object can be removed from the forming cylinder 102c via electric slide rail 102.

[0045] Example 2

[0046] Reference Figures 3-7This is the second embodiment of the present invention, which differs from the first embodiment in that it further includes two lifting platforms 201 respectively fixed to two sliding seats 103f. A mounting plate 202 is provided on one side of each lifting platform 201, and the mounting plate 202 is fixed to one side of the lifting platform 201 via a placement plate 202a. The second power component 203 includes a servo motor 203a mounted on one side of the mounting plate 202 and a rotating platform 203d disposed above the mounting plate 202. A worm gear 203c is fixedly connected to the output end of the servo motor 203a. A worm wheel 203b is rotatably connected inside the mounting plate 202, and the worm wheel 203b is connected to the servo motor 203a. In conjunction with the rotating platform 203d, which is fixed to the worm gear 203b, the lifting platform 201 drives the placement plate 202a to move up and down. When the powder suction head 204c is at a suitable height from the powder layer, it stops. Then, the vacuum pump 101b sucks up the powder. During suction, the electric guide rails 103a, 103b, and 103e operate, driving the powder suction head 204c to move along a designated route in the area where powder needs to be cleaned, thus completing the powder cleaning operation. The rotating platform 203d can be rotated by the power component 203, and the powder layer is sucked up by different powder suction heads 204c.

[0047] Specifically, multiple fixing plates 204 are fixed to one of the rotating platforms 203d. A clamping block 204b is fixedly connected to one side of each fixing plate 204, and a powder suction head 204c is provided in the clamping block 204b. The powder suction head 204c is fixed to the hose 204a. Multiple powder dropping components 205 are fixed to another rotating platform 203d. Each powder dropping component 205 includes a powder storage bin 205a, a power component 205d installed on one side of the rotating platform 203d, and a funnel 205c located below the powder storage bin 205a. A fixed box 205b is fixedly connected below the powder storage bin 205a. The power component 205d includes a servo motor 205d-1 fixed to one side of the rotating platform 203d, a fixing plate 205d-3 fixed to both ends of the fixed box 205b, and a rotating shaft 205d-4 rotating on the fixing plate 205d-3. The output end of servo motor 205d-1 is fixedly fitted with gear 205d-2, and one end of shaft 205d-4 is fixedly fitted with gear 205d-5. Gear 205d-5 meshes with gear 205d-2. The clamping block 204b restricts the six degrees of freedom of the syringe, ensuring the position of the syringe nozzle is fixed and preventing shaking during powder suction, which could lead to errors in the powder suction process. When servo motor 205d-1 is turned on, the shaft 205d-4 is rotated by the linkage of gear 205d-2 and gear 205d-5. The powder in the powder storage bin 205a is fed into the funnel 205c through the opening on the shaft 205d-4. When enough powder falls into the funnel, the motor drives the rotor to rotate at a certain angle to prevent powder from falling into the powder storage bin.

[0048] During use, the printing process begins with the scraper 104 scraping the placement box 101a. Then, the electric guide rails 103a, 103b, and 103e move the lifting platform 201. The platform 104c picks up the base powder from the forming cylinder 102c at a designated location. The powder is then printed in the forming cylinder 102c via the powder dropper 205. Simultaneously, the power component 203 allows for the effective expansion of powder types, enabling different powders to fall. Multiple powder suction heads 204c can adapt to changes in the base powder. Specifically, in the vertical direction, if the proportion of the original base powder in the subsequent printing layer decreases while powder 2 has the largest proportion, powder 2 is used as the base powder for pre-laying to avoid excessively long powder drop times. This necessitates the use of another syringe for powder removal during cleaning. The multiple powder droppers 205 can hold various printing powders and can replace the falling powder during printing, enabling multi-material printing.

[0049] Example 3

[0050] Reference Figures 8-17This is the third embodiment of the present invention. Based on the first two embodiments, this embodiment further includes a fixing member 301 comprising an outer ring 301a rotatably rotating in the through hole 101c, a second groove 301c formed in the outer ring 301a, a spring 301d disposed in the second groove 301c, and a locking block 301e and a moving block 301f sliding in the second groove 301c. Two first grooves 301b are formed in the outer ring 301a, one of which communicates with the second groove 301c. The two ends of the spring 301d are respectively fixed to the inner wall of the second groove 301c and one side of the locking block 301e. The moving block 301f slides against the locking block 301e. The outer ring 301a has a guide groove 301g on one side. By squeezing the moving block 301f, the locking block 301e can be moved into the second groove 301c, and the spring 301d can be squeezed at the same time. At this time, the locking block 301e will be pulled out from the groove 101d. At this time, the fixing member 301 can rotate with the through hole 101c. It can rotate with the winding of the hose 204a when collecting the hose 204a, so as to tidy up the hose 204a when collecting it. The guide groove 301g guides the movement of the insertion rod 304, ensuring that the movement trajectory of the insertion rod 304 will not deviate.

[0051] Specifically, the power component 302 includes a mounting plate 302a fixed to one side of the outer ring 301a, a gear 302b rotating on one side of the outer ring 301a, and a servo motor 302d mounted on the mounting plate 302a. The output end of the servo motor 302d is fixedly connected to a gear 302e, and the gear 302e meshes with the gear 302b. A groove 302g is formed on the top of the gear 302e, and a slider 302h is slidably connected in the groove 302g. The slider 302h is fixedly connected to... Gear 5 302f rotates at the output end of servo motor 302d. Gear 302b is fixedly connected to slider 1 302c. By turning on servo motor 302d, gear 4 302e can be rotated, which in turn drives gear 302b to rotate. Through the setting of slide groove 1 302g, it can be ensured that when servo motor 302d drives gear 4 302e and gear 5 302f to rotate forward or in reverse, gear 4 302e will drive gear 302b to rotate first.

[0052] Specifically, the receiving / releasing component 303 includes an inner disc 303a disposed in the fixing component 301, a rack 303c fixed to one side of the inner disc 303a, and two sliders 303d fixed to the outer ring of the inner disc 303a. The sliders 303d are adapted to the groove 301b. One slider 303d has an insertion hole 303e. The inner disc 303a has multiple through holes 303b, which are adapted to the flexible hose 204a. A fixing block 303f is fixedly connected to one side of the inner disc 303a, and multiple rotating rods 303g are rotatably connected to the fixing block 303f. A roller 303h is fixedly sleeved on the outer ring of each rotating rod 303g. Two rotating rods 303g are connected by a belt 303i. A mounting plate 303k is fixedly connected to one side of a fixed block 303f, and a servo motor 303j is mounted on the mounting plate 303k. The output end of the servo motor 303j is fixed to a rotating rod 303g. The four rollers 303h are divided into two groups. The servo motor 303j can drive the two rotating rods 303g to rotate, thereby driving the rollers 303h to rotate. Because the rollers 303h are in contact with the hose 204a, the rotation of the rollers 303h can drive the hose 204a to move, which can realize the collection of the hose 204a and prevent it from accumulating in the placement box 101a. When the slider 303d moves, it will squeeze the moving block 301f, realizing the retraction of the locking block 301e.

[0053] Specifically, the insertion rod 304 is movably sleeved on the inner ring of the gear 302b. The outer ring of the insertion rod 304 has two sliding grooves 304a and two sliding grooves 304b, which intersect each other. Both sliding grooves 304b are connected to the two sliding grooves 304a. A lever 304d is installed in the sliding groove 304b. The lever 304d and the slider 302c are adapted to the sliding groove 304b. The insertion rod 304 is adapted to the insertion hole 303e. A guide strip 304c is fixedly connected to one side of the insertion rod 304, and the guide strip 304c is adapted to the guide groove 301g. The sliding groove 304b is a threaded groove. Through the cooperation of the sliding groove 304b and the slider 302c, rotating the gear 302b can drive the insertion rod 304 to move upwards. Furthermore, when the toothed part of the gear 4 302e engages with the toothed part... After wheel 302b makes contact, slider 302c aligns perfectly with groove 304a, allowing rod 304 to fall smoothly. The intersecting grooves 304b and their connection to grooves 304a ensure that wheel 302b can move rod 304 upwards regardless of whether it rotates clockwise or counterclockwise. Groove 304a ensures rod 304 falls smoothly, guaranteeing stable upward movement when wheel 302b rotates again. Paddle 304d prevents slider 302c from sliding into groove 304b while sliding in one groove, causing malfunction. When paddle 304d rotates to its maximum angle, it engages with groove 304b, ensuring normal sliding of slider 302c.

[0054] In operation, when servo motor 302d rotates counterclockwise, gear 4 302e first drives gear 302b to rotate. The rotation of gear 302b drives the insert rod 304 to move upward. When the bottom end of the insert rod 304 is level with the inner wall of groove 1 301b, slider 2 302h moves to one end of groove 1 302g, and gear 5 302f starts to rotate. At this time, because the toothless part of gear 4 302e is in contact with gear 302b, it will not drive gear 302b to rotate. Gear 5 302f drives the inner disk 303a to rotate. When slider 303d moves below insert rod 304, and when the insertion hole 303e is aligned with insert rod 304, insert rod 304 will be inserted into insertion hole 303e, fixing slider 303d and releasing the fixation of outer ring 301a. When the servo motor 302d rotates clockwise, due to the sliding groove 302g, the gear 5 302f will not drive the inner disk 303a to rotate. After rotating for a certain period of time, the toothed part of the gear 4 302e will contact the gear 302b, driving the gear 302b to rotate, thereby driving the insertion rod 304 to move upward. When the bottom end of the insertion rod 304 is level with the inner wall of the groove 301b, the fixation of the slider 303d can be released. At this time, the slider 2 302h moves to the other end of the sliding groove 302g, and the gear 5 302f starts to drive the inner disk 303a to rotate counterclockwise. When the inner disk 303a rotates counterclockwise, the squeezing force on the moving block 301f will disappear. At this time, due to the action of the spring 301d, the locking block 301e will move into the locking groove 101d, fixing the outer ring 301a.

[0055] In summary, during printing, when the servo motor 302d is controlled by the controller to rotate counterclockwise, gear 4 302e first drives gear 302b to rotate. The rotation of gear 302b drives slider 302c to rotate. Due to the cooperation between slider 302c and groove 304b, the sliding of slider 302c pushes the lever 304d, causing lever 304d to block the channel of another groove 304b, preventing slider 302c from sliding into the other groove 304b. Furthermore, the cooperation between guide bar 304c and guide groove 301g drives the insertion rod 304 to move upwards. When the bottom end of insertion rod 304 is in contact with the inner wall of groove 301b... When the slider 2 302h moves to one end of the slide groove 1 302g, the gear 5 302f starts to rotate. At this time, because the toothless part of the gear 4 302e is in contact with the gear 3 302b, it will not drive the gear 3 302b to rotate. The gear 5 302f drives the inner disk 303a to rotate. When the slider 3 303d moves below the insertion rod 304, and the insertion hole 303e is aligned with the insertion rod 304, the insertion rod 304 will be inserted into the insertion hole 303e. The slider 1 302c slides in the slide groove 2 304a, fixing the slider 3 303d and releasing the fixation of the outer ring 301a, which can realize the rotation of the outer ring 301a and the through hole 101c. Then, the electric guide rail 3 103c is turned on to drive the scraper 10. 4. After the movement is completed, the controller controls the electric guide rail 103a, electric guide rail 4 103e, and servo motor 4 303j to move the powder suction head 204c and the powder discharge component 205. When the powder suction head 204c moves, it will pull the hose 204a. At this time, the servo motor 4 303j drives the roller 303h to rotate and transport the hose 204a. After the powder is cleaned by the powder suction head 204c, it is printed in the forming cylinder 102c by the powder discharge component 205. After the printing is completed, the powder suction head 204c and the powder discharge component 205 are driven back to their original positions by the electric guide rail 103a, electric guide rail 4 103e, and servo motor 4 303j. At this time, the servo motor 4 303j reverses and can move the roller 303h. The cylinder 303h drives the hose 204a to be conveyed out of the placement box 101a. When the rotating platform 203d rotates, the hose 204a may become entangled. At this time, the rotation of the outer ring 301a allows it to rotate in the direction of the entanglement when collecting the hose 204a, thus tidying up the hose 204a during collection. After collection, when the controller controls the servo motor 302d to rotate clockwise, due to the sliding groove 302g, the gear 5 302f will not drive the inner disk 303a to rotate. After rotating for a certain period of time, the toothed part of the gear 4 302e contacts the gear 302b, driving the gear 302b to rotate, thereby driving the insertion rod 304 to move upward.When the bottom end of the insertion rod 304 is flush with the inner wall of the groove 301b, the fixation of the slider 303d is released. At this time, the slider 302h moves to the other end of the groove 302g, and the gear 302f starts to drive the inner disk 303a to rotate counterclockwise. When the inner disk 303a rotates counterclockwise, the pressure on the moving block 301f disappears. At this time, due to the action of the spring 301d, the locking block 301e will move into the locking groove 101d, fixing the outer ring 301a.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A multi-channel powder cleaning and powder removal device for multi-material 3D printing, characterized in that: include, The support assembly (100) includes a support frame (101), two electric slide rails (102) fixedly installed in the support frame (101), a power component (103) disposed above the support frame (101), and a scraper (104) disposed on the power component (103). The top of the support frame (101) is fixedly connected to a placement box (101a). The top of the placement box (101a) is provided with a through hole (101c). A fixing strip (204d) is fixedly connected to one side of the placement box (101a), and a filter box (204e) is installed on the fixing strip (204d). A flexible hose (204a) and a five-way pipe are fixedly connected to both ends of the filter box (204e), and the five-way pipe is fixedly connected to a vacuum pump (101b). A fixed frame (102a) is provided on one side of the electric slide rail (102), and one side of the fixed frame (102a) is fixedly connected to one end of the support rod (102b). A waste cylinder (102d) and two forming cylinders (102c) are provided at the bottom of the placement box (101a), and the forming cylinders (102c) are fixed to the other end of the support rod (102b). The powder cleaning and dust removal assembly (200) includes two elevators (201) fixed to the power component one (103), an installation plate (202) installed on one side of the elevators (201), a power component two (203) set in the installation plate (202), a plurality of fixing pieces (204) installed on one of the power components two (203), and a plurality of dust removal pieces (205) installed on the other power component two (203). A rotating platform (203d) is provided above the mounting plate (202); Multiple fixing plates (204) are fixed to one of the rotating platforms (203d). A clamping block (204b) is fixedly connected to one side of the fixing plate (204), and a powder suction head (204c) is provided in the clamping block (204b). The powder suction head (204c) is fixed to the other end of the hose (204a). Multiple powder dropping parts (205) are fixed to another rotating platform (203d). Adjustment assembly (300) includes a fixing member (301) disposed on a support frame (101), a power component four (302) installed on one side of the fixing member (301), a retracting component (303) disposed in the fixing member (301), and a plug rod (304) installed in the power component four (302). The fixing member (301) is rotatable in the through hole one (101c). The power component four (302) includes a mounting plate one (302a) fixed to one side of the outer ring (301a), a gear three (302b) rotating to one side of the outer ring (301a), and a servo motor three (302d) mounted on the mounting plate one (302a). The output end of the servo motor three (302d) is fixedly connected to the gear four (302e), and the gear four (302e) meshes with the gear three (302b). The top of the gear four (302e) is provided with a sliding groove one (302g), and a slider two (302h) is slidably connected in the sliding groove one (302g). The slider two (302h) is fixedly connected to the gear five (302f), and the gear five (302f) rotates at the output end of the servo motor three (302d). The gear three (302b) is fixedly connected to the slider one (302c). The retractable component (303) includes an inner disk (303a) disposed in the fixing component (301), a rack (303c) fixed to one side of the inner disk (303a), and two sliders (303d) fixed to the outer ring of the inner disk (303a). One slider (303d) is adapted to a groove (301b), and one slider (303d) has an insertion hole (303e). The inner disk (303a) has multiple through holes (303b), and the through holes (303e) are... 303b) is adapted to the hose (204a). A fixing block (303f) is fixedly connected to one side of the inner disc (303a), and a plurality of rotating rods (303g) are rotatably connected to the fixing block (303f). A roller (303h) is fixedly sleeved on the outer ring of the rotating rod (303g). The roller (303h) is in contact with the hose (204a). The rotation of the roller (303h) can drive the hose (204a) to move, so as to realize the collection of the hose (204a). The fixing member (301) includes an outer ring (301a) that rotates in the through hole (101c). A guide groove (301g) is provided on one side of the outer ring (301a). The insert rod (304) is movably sleeved on the inner ring of the gear three (302b). The outer ring of the insert rod (304) has two sliding grooves two (304a) and two sliding grooves three (304b), and the two sliding grooves three (304b) intersect each other. 04b) is connected to both slide grooves two (304a). A lever (304d) is provided in slide groove three (304b). The lever (304d) and slider one (302c) are adapted to slide groove three (304b). The insertion rod (304) is adapted to the insertion hole (303e). A guide strip (304c) is fixedly connected to one side of the insertion rod (304), and the guide strip (304c) is adapted to the guide groove (301g). The fixing component (301), the power component (302), the retracting component (303), and the insertion rod (304) are used together.

2. The multi-channel powder cleaning and powder removal device for multi-material 3D printing as described in claim 1, characterized in that: The power component 1 (103) includes an electric guide rail 1 (103a) and an electric guide rail 2 (103b) fixed to the bottom of the inner side of the placement box (101a) and an electric guide rail 3 (103c) fixed to one side of the placement box (101a). The scraper (104) is installed on the electric guide rail 3 (103c). Both the electric guide rail 1 (103a) and the electric guide rail 2 (103b) are equipped with a sliding seat 1 (103d). The top of the sliding seat 1 (103d) is fixedly connected to an electric guide rail 4 (103e). The electric guide rail 4 (103e) is slidably connected to two sliding seats 2 (103f).

3. The multi-channel powder cleaning and powder removal device for multi-material 3D printing as described in claim 2, characterized in that: The two lifting platforms (201) are respectively fixed on two sliding seats (103f). A mounting plate (202) is provided on one side of the lifting platform (201), and the mounting plate (202) is fixed to one side of the lifting platform (201) by a placement plate (202a). The power component (203) includes a servo motor (203a) installed on one side of the mounting plate (202) and a rotating platform (203d) set above the mounting plate (202). The output end of the servo motor (203a) is fixedly connected to a worm gear (203c). The worm wheel (203b) is rotatably connected inside the mounting plate (202), and the worm wheel (203b) cooperates with the servo motor (203a). The rotating platform (203d) is fixed to the worm wheel (203b).

4. The multi-channel powder cleaning and powder removal device for multi-material 3D printing as described in claim 3, characterized in that: The powder discharge component (205) includes a powder storage bin (205a), a power component three (205d) installed on one side of the rotating platform (203d), and a funnel (205c) disposed below the powder storage bin (205a). A fixed box (205b) is fixedly connected below the powder storage bin (205a). The power component three (205d) includes a servo motor two (205d-1) fixed to one side of the rotating platform (203d), a fixing plate (205d-3) fixed to both ends of the fixing box (205b), and a rotating shaft (205d-4) rotating on the fixing plate (205d-3). The output end of the servo motor two (205d-1) is fixedly fitted with a gear one (205d-2), and one end of the rotating shaft (205d-4) is fixedly fitted with a gear two (205d-5), and the gear two (205d-5) meshes with the gear one (205d-2).

5. The multi-channel powder cleaning and powder removal device for multi-material 3D printing as described in claim 4, characterized in that: The fixing member (301) includes an outer ring (301a) that rotates in the through hole (101c), a second groove (301c) opened in the outer ring (301a), a spring (301d) disposed in the second groove (301c), and a locking block (301e) and a moving block (301f) that slide in the second groove (301c). The outer ring (301a) has a first groove (301b) and a second groove (301c), wherein the first groove (301b) and the second groove (301c) are connected. The two ends of the spring (301d) are respectively fixed to the inner wall of the second groove (301c) and one side of the locking block (301e). The moving block (301f) slides in cooperation with the locking block (301e).

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