A remote feeder for a 3D printer

Abstract

The present invention discloses a 3D printer remote feeder, which belongs to the field of 3D printing technology. It includes a first driving member, a fixed platform, a mobile platform, a conveying wheel, a second driving member, a sliding member, an abutting wheel, a balance plate, a driving block, and a third driving member. The second driving member can drive the conveying wheel to rotate, and the third driving member can drive the driving block to move, so that the driving block abuts against the middle of the corresponding balance plate, pushes the sliding member to move and causes the abutting wheel to abut against the consumables, thereby causing the conveying wheel to drive the consumables to feed. The first driving member is driven to drive the mobile conveying channel in the mobile platform to connect to other fixed conveying channels, and at the same time, the third driving member is driven to drive the driving block to move to the corresponding position, so that the abutting wheel presses against the consumables in the corresponding fixed conveying channel to realize feeding, thereby completing the feed replacement. No manual material changing operation is required, thereby improving the efficiency of the printing task. The material changing process is simple and fast, the material changing time is short, and the fusion connection quality between different materials before and after the material changing is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a remote feeder for a 3D printer. Background Art

[0002] Industrial-grade 3D printers using the FDM (Fused Deposition Modeling) process offer higher precision, higher speed, and larger build capacity than conventional 3D printers. The feed mechanism, a crucial component of a 3D printer, directly impacts its print quality and efficiency, depending on its level of automation.

[0003] Most industrial-grade 3D printers use a remote feeding method. Most have a material box on the side of the printer to mount the extruder and hang a single filament tray. The filament is pulled by the extruder through a feed hose and transported to the nozzle moving unit, where it is heated and extruded by the nozzle before being printed. Compared to feeding materials with the extruder mounted proximal to the nozzle moving unit, this method reduces the load mass and motion inertia of the nozzle moving unit, improves the positioning accuracy of the moving unit, and thus effectively enhances the accuracy and printing speed of 3D printing.

[0004] Industrial printers often print large models, requiring a high supply of consumables. Sometimes a single roll of consumables isn't enough to complete a print job, necessitating a refill. The typical refill method involves pausing the print job when a consumable sensor detects it's exhausted, requiring a new roll to be replaced before printing can resume. However, this refill process requires on-site personnel, which can easily impact print jobs if personnel are absent. Summary of the Invention

[0005] The object of the present invention is to provide a remote feeder for a 3D printer to solve one or more technical problems existing in the prior art and at least provide a beneficial option or create conditions.

[0006] The technical solution adopted to solve the above technical problems is as follows: a 3D printer remote feeder, comprising a first driving member, a fixed platform and a movable platform slidably arranged on the fixed platform, the fixed platform is provided with at least two fixed conveying channels arranged in parallel, the fixed platform is rotatably installed with a conveying wheel at a position corresponding to each of the fixed conveying channels, the fixed platform is provided with a second driving member for driving the conveying wheel to rotate, the fixed platform is slidably provided with a sliding member at a position corresponding to each of the fixed conveying channels, an abutment wheel is rotatably installed on the sliding member, the abutment wheel and the conveying wheel are respectively located at two side positions corresponding to the fixed conveying channels, a first elastic member is installed between the sliding member and the fixed platform, the first elastic member provides an elastic force to keep the abutment wheel away from the conveying wheel; the sliding member is provided with a balance plate, The middle part of the balance plate is rotatably connected to the sliding member, and a driving block is slidably installed on the fixed platform, and all the balance plates are arranged side by side along the sliding direction of the driving block, and the fixed platform is equipped with a third driving member for driving the driving block to move; when the driving block moves, the driving block can move from one end of any one of the balance plates to the other end; when the driving block moves to abut against the middle of the balance plate, the driving block presses the balance plate, so that the sliding member overcomes the elastic force of the first elastic member and makes the abutting wheel approach the conveying wheel, thereby making the abutting wheel and the conveying wheel clamp the consumables in the fixed conveying channel; the movable platform is provided with a movable conveying channel, and the first driving member is used to drive the movable platform to slide, so that the movable conveying channel is connected to one of the fixed conveying channels.

[0007] This technical solution has at least the following beneficial effects: a single consumables tray is hung at a position corresponding to each fixed conveying channel on the fixed platform, and the consumables in each consumables tray are respectively inserted into the corresponding fixed conveying channel, and the conveying wheel is driven to rotate by the second driving member. Due to the presence of the first elastic member, the abutment wheel is kept away from the conveying wheel, and at this time the conveying wheel cannot drive the consumables to convey and feed; when the consumables in the first fixed conveying channel need to be fed, the driving block is driven to move by the third driving member so that the driving block abuts against the middle of the corresponding balance plate, and the balance plate is pressed to push the sliding member to move, so that the abutment wheel abuts against the middle of the corresponding balance plate. When the consumables are in contact with the contact wheel and the conveyor wheel, the consumables are clamped, and the conveyor wheel drives the consumables to be fed. When the consumables in the first fixed conveyor channel are used up, the first driving member is driven to drive the movable platform to move, so that the movable conveyor channel corresponds to the second fixed conveyor channel. The third driving member is then driven to drive the drive block to move, so that the drive block moves to abut the middle of the corresponding balance plate. The consumables in the second fixed conveyor channel are then fed through the corresponding conveyor wheel, thus completing the feeding process of different consumable trays. Therefore, manual material changing operations are not required, improving the efficiency of printing tasks. The material changing process is also simple and fast, and the changing time is short, thus ensuring the fusion connection quality between different materials before and after the material change.

[0008] As a further improvement to the above technical solution, first magnetic members are respectively installed at both ends of the balance plate, and second magnetic members that can attract the first magnetic members on the corresponding side are respectively installed on both sides of the sliding member. When the driving block moves from one end of the balance plate to the other end, the first magnetic member on one end of the balance plate separates from the second magnetic member on the corresponding side, and the first magnetic member on the other end of the balance plate attracts the second magnetic member on the corresponding side. This prevents the balance plate from rotating randomly. When the driving block moves and leaves the middle position of the balance plate, the balance plate rotates and deviates toward one side in the direction of movement of the driving block, and the offset position of the balance plate is maintained by the mutual attraction between the first and second magnetic members on that side, thereby ensuring that the driving block can contact the corresponding balance plate during movement, thereby ensuring the driving block's ability to drive the balance plate.

[0009] As a further improvement to the above technical solution, the third drive member includes a third screw rotatably mounted on the fixed platform, the fixed platform being equipped with a third motor for driving the third screw to rotate, and the third screw being threadedly connected to the drive block; the first drive member includes a first screw rotatably mounted on the fixed platform, the first screw being threadedly connected to the mobile platform, and a synchronous belt mechanism for transmission connection being installed between the first and third screws. The third motor drives the third screw to rotate, thereby driving the drive block to move. Under the transmission action of the synchronous belt mechanism, the first screw can also be driven to rotate, causing the first screw to drive the mobile platform to move. The number of motors arranged is small, and the position of the drive block corresponds to the position of the mobile platform, which can ensure that the fixed conveying channel and the mobile conveying channel are connected during feeding.

[0010] As a further improvement of the above technical solution, the synchronous belt mechanism includes a first synchronous wheel installed on the first screw and a second synchronous wheel installed on the third screw. The first synchronous wheel and the second synchronous wheel are jointly sleeved with a synchronous belt. The fixed platform is rotatably installed with a tensioning wheel pressed against the inner side of the synchronous belt. The first synchronous wheel and the second synchronous wheel are respectively engaged with the synchronous belt.

[0011] As a further improvement to the above technical solution, the third drive member includes a third screw rotatably mounted on the fixed platform, the fixed platform being equipped with a third motor for driving the third screw, the third screw being threadedly connected to the drive block; the mobile platform is connected to the drive block, and the first drive member comprises the third motor and the third screw. The number of motors arranged is small, and the position of the drive block corresponds to that of the mobile platform, ensuring that the fixed conveying channel currently feeding materials is connected to the mobile conveying channel. Furthermore, the drive block is strongly associated with the mobile platform, resulting in a simple structure and low cost.

[0012] As a further improvement to the above technical solution, the sliding member is slidably mounted with a slider, the sliding direction of the slider is the same as the sliding direction of the sliding member, the slider is mounted with a rotating shaft, the abutment wheel is rotatably mounted on the rotating shaft, and the sliding member is mounted with a second elastic member, the second elastic member provides an elastic force to push the slider so that the abutment wheel approaches the conveying wheel. When the abutment wheel presses against the consumables, the consumables can give the abutment wheel a reaction force to overcome the elastic force of the second elastic member and move, thereby preventing the abutment wheel from crushing the consumables and protecting the consumables. In addition, under the elastic force of the second elastic member, the abutment wheel presses the consumables with a certain pressure, so that the conveying wheel and the abutment wheel stably clamp the consumables, and slippage is not likely to occur between the conveying wheel and the consumables, thereby ensuring the conveying reliability of the consumables and facilitating the precise control of the conveying amount of the consumables by driving the rotation stroke of the conveying wheel.

[0013] As a further improvement of the above technical solution, the driving block is formed with a protrusion for contacting the balancing plate, and the balancing plate is provided with a limiting groove for the protrusion to extend into and slide, thereby improving the stability of the driving block sliding on the balancing plate.

[0014] As a further improvement to the above technical solution, transverse cutting blades capable of cutting the consumables are mounted on both sides of the movable platform, with the blades of the two transverse cutting blades positioned away from each other. As the movable platform moves, the consumables extending from the next fixed conveyor channel can be cut, ensuring that the movable platform can smoothly move to a position where the movable conveyor channel aligns with the next fixed conveyor channel.

[0015] As a further improvement to the above technical solution, the two transverse cutting blades are located on opposite sides of the opening of the movable conveying channel and are each provided with a blade. During the movement of the movable platform, the consumables in the movable conveying channel can be cut, thereby preventing the consumables from affecting the movement of the movable platform.

[0016] As a further improvement to the above technical solution, the movable platform is equipped with a cutting seat and a longitudinally movable cutting knife slidably mounted thereon. The longitudinally movable cutting knife and the cutting seat are respectively located on either side of the movable conveying channel. The cutting seat is provided with a cutting groove, and the movable platform is equipped with a fourth driving member for driving the longitudinally movable cutting knife to engage in the cutting groove, thereby realizing the material cutting function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0018] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of a top view of the structure of an embodiment of the present invention;

[0020] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0021] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of the middle BB;

[0022] Figure 5 A schematic diagram of the internal structure of a fixed platform according to an embodiment of the present invention;

[0023] Figure 6 Schematic diagram of the structure of the longitudinal cutting knife in an embodiment of the present invention.

[0024] 100, fixed platform; 101, base; 102, first shell; 103, second shell; 104, supporting inner plate; 110, fixed conveying channel; 200, conveying wheel; 210, second motor; 220, driving shaft; 300, driving block; 310, third screw; 320, third motor; 330, protrusion; 340, limiting groove; 400, sliding member; 401, frame; 402, seat plate; 410, abutting wheel; 420, balancing plate; 430, first magnetic member ; 440, second magnetic member; 450, slider; 460, rotating shaft; 470, second elastic member; 500, first elastic member; 600, movable platform; 610, first screw; 620, movable conveying channel; 700, synchronous belt mechanism; 710, first synchronous wheel; 720, second synchronous wheel; 730, tensioning wheel; 740, synchronous belt; 800, transverse cutting knife; 810, longitudinal cutting knife; 820, cutting seat; 821, cutting groove; 830, fourth driving member. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] Reference Figure 1-6 A 3D printer remote feeder includes a movable platform 600, a fixed platform 100, and a first driving member. The fixed platform 100 includes a base 101, a U-shaped first shell 102, a U-shaped second shell 103, and an X-shaped support inner plate 104. The support inner plate 104 is mounted on the top of the base 101 by bolts. The first shell 102 is mounted on the left and right sides of the top of the base 101. The second shell 103 is mounted on the front and back sides of the top of the base 101. The top of the second shell 103 is connected to the top of the first shell 102 by bolts. The first shell 102 and the second shell 103 surround the outer periphery of the support inner plate 104.

[0030] The base 101 is provided with four fixed conveying channels 110, which are arranged side by side in the left-right direction, and the length direction of the four fixed conveying channels 110 is the front-to-back horizontal direction. Four conveying wheels 200 are rotatably mounted on the base 101, and the outer peripheral side ring of the conveying wheels is provided with multiple anti-slip strips. The four conveying wheels 200 are respectively located below the four fixed conveying channels 110. The base 101 is provided with a second driving member, which includes a second motor 210 mounted on the left side of the base 101. The output end of the second motor 210 is connected to a drive shaft 220 via a coupling. Both ends of the drive shaft 220 are rotatably mounted in the base 101 via bearings. The four conveying wheels 200 are coaxially mounted on the drive shaft 220. By driving the second motor 210, the four conveying wheels 200 can be driven to rotate synchronously. Specifically, a receiving groove is opened in the middle of the top of the base 101, and the two ends of the drive shaft 220 are rotatably installed on the two side walls of the receiving groove, that is, the drive shaft 220 and the conveying wheel 200 are both in the receiving groove, and the receiving groove provides space for the rotation of the drive shaft 220 and the conveying wheel 200.

[0031] Four sliding members 400 are arranged side by side on the top of the support inner plate 104. Each of the four sliding members 400 is positioned above the four conveyor wheels 200 and can slide vertically within the support inner plate 104. Specifically, four sliding holes are arranged side by side on the top of the support inner plate 104. The sliding members 400 include a frame 401 and a seat plate 402. The frame 401 is U-shaped, with its center portion inserted into the corresponding sliding holes. The frame 401 can slide vertically within the sliding holes. The seat plate 402 extends through the center of the frame 401 and is bolted to the top of the frame 401. The seat plate 402 is formed with a mounting lug on each of its front and rear sides. The two mounting lugs of the same seat plate 402 clamp onto the sides of the frame 401. A rotating shaft is provided through the two mounting lugs of the same seat plate 402. A balancing plate 420 is rotatably mounted on the rotating shaft. The middle portion of the balancing plate 420 is connected to the rotating shaft, allowing both left and right ends of the balancing plate 420 to swing relative to the slider 400. Furthermore, four balancing plates 420 are arranged side by side in a horizontal direction. A first elastic member 500, a first coil spring, is installed between the seat plate 402 and the top of the support inner plate 104. A first coil spring is connected to the bottom of each of the front and rear sides of the seat plate 402, with the bottom of the first coil spring connected to the top of the support inner plate 104.

[0032] Both sides of the frame 401 are provided with outwardly protruding limit blocks. Under the elastic force of the first coil spring, the top of the limit block presses against the bottom of the supporting inner plate 104, thereby limiting the entire slider 400 to a preset height position. A slider 450 is mounted vertically between the limit block and the bottom position of the frame 401. A second elastic member 470 is installed between the top of the slider 450 and the limit block. The second elastic member 470 is a second coil spring, one end of which is embedded in the top of the slider 450 and the other end is embedded in the bottom of the limit block on the same side. The elastic force of the second coil spring causes the bottom of the slider 450 to contact the frame 401, thereby lowering the slider 450.

[0033] A rotating shaft 460 is provided between the two sliders 450 on either side of the same frame 401. A contact wheel 410 is rotatably mounted in the middle of the rotating shaft 460. Specifically, an contact wheel 410 is rotatably mounted on the bottom of each of the four sliders 400. Each of the four contact wheels 410 is positioned above the four conveying wheels 200, with the rotation axes of the contact wheels 410 and the corresponding conveying wheels 200 being parallel and on the same vertical plane. The receiving groove at the top of the base 101 divides the fixed conveying channel 110 into two sections, front and back. After the consumables extend from the rear section of the fixed conveying channel 110 into the receiving groove, they pass between the corresponding contact wheel 410 and the conveying wheel 200, and then through the front section of the fixed conveying channel 110. In other words, the corresponding contact wheels 410 and the corresponding conveying wheels 200 are located on either side of the fixed conveying channel 110.

[0034] A guide rod (not shown) with a left-right longitudinal direction is installed inside the first housing 102. A drive block 300 is slidably mounted on the guide rod. A third drive member is mounted on the first housing 102. The third drive member includes a third screw 310 and a third motor 320. The third motor 320 is mounted on the left exterior of the first housing 102. The two ends of the third screw 310 rotate on the left and right sides of the first housing 102, and the output end of the third motor 320 is connected to the left end of the third screw 310, so that the third motor 320 can drive the third screw 310 to rotate. The drive block 300 is threadedly connected to the third screw 310. When the third motor 320 drives the third screw 310 to rotate, the drive block 300 can move left and right.

[0035] A protrusion 330 is mounted on the bottom of the driving block 300, and the protrusion 330 and the balance plate 420 are located in the same vertical plane. The length of the protrusion 330 in the left-right direction gradually decreases downward, causing the two sides of the protrusion 330 to be inclined. The bottom surface of the protrusion 330 is arc-shaped, and the bottom height of the protrusion 330 is less than the height of the rotation center of the balance plate 420. A limiting slot 340 is defined at the top of the balance plate 420. The left and right ends of the limiting slot 340 respectively extend through the left and right ends of the balance plate 420. The width of the limiting slot 340 in the front-to-back direction is the same as the width of the protrusion 330 in the front-to-back direction, or is slightly larger than the width of the protrusion 330 in the front-to-back direction.

[0036] When the third motor 320 is driven to move the drive block 300 left and right, the protrusion 330 sequentially engages the retaining groove 340 of each balance plate 420 and slides from one end of the balance plate 420 to the other. When the protrusion 330 begins to contact the balance plate 420, it begins to press against the balance plate 420, causing the entire slider 400 to overcome the elastic force of the first elastic member 500 and move downward, thereby driving the abutment wheel 410 downward and approaching the corresponding conveyor wheel 200. When the abutment wheel 410 moves downward and begins to contact the consumables passing through the fixed conveyor channel 110, the abutment wheel 410 and the conveyor wheel 200 begin to clamp the consumables. When the protrusion 330 moves to the midpoint position of the abutment balance plate 420, which is the position corresponding to the rotation center, the sliding member 400 moves downward to the lowest point, so that the abutment wheel 410 and the conveying wheel 200 clamp the consumables. When the conveying wheel 200 is driven by the second motor 210, the consumables can be pushed to move, thereby realizing the feeding process.

[0037] When the protrusion 330 starts to move away from the midpoint position of the abutment balance plate 420, the balance plate 420 swings and deflects toward the side of the moving direction of the protrusion 330 and flips over. The sliding member 400 moves upward under the elastic force of the first elastic member 500, driving the abutment wheel 410 to move upward and away from the corresponding conveying wheel 200. When the abutment wheel 410 moves upward to separate from the consumables, the abutment wheel 410 and the conveying wheel 200 no longer clamp the consumables, thereby canceling the process of conveying the consumables in the fixed conveying channel 110.

[0038] When the abutment wheel 410 presses against the consumables, the consumables exert a reaction force on the abutment wheel 410, causing the slider 450 to overcome the elastic force of the second elastic member 470 and move upward, thereby preventing the abutment wheel 410 from crushing or deforming the consumables. It should be understood that the portion of the balance plate 420 that is abutted by the protrusion 330 is the middle portion, referred to as the middle portion of the balance plate 420. The position of the middle portion of the balance plate 420 corresponding to the rotation center is the midpoint. During normal operation, the protrusion 330 of the driving block 300 remains at the midpoint of the balance plate 420.

[0039] A slide plate is mounted on the front side of the second housing 103, and a guide rod is mounted on the slide plate. The movable platform 600 is mounted on the guide rod, allowing the movable platform 600 to slide left and right relative to the fixed platform 100. The movable platform 600 is provided with a movable conveying channel 620. The height of the movable conveying channel 620 is the same as that of the fixed conveying channel 110. That is, when the movable platform 600 moves in front of the fixed conveying channel 110, the movable conveying channel 620 connects with the fixed conveying channel 110, allowing the consumables in the fixed conveying channel 110 to be transported to the movable conveying channel 620. The movable platform 600 is equipped with a feed pipe connector at the front side of the movable conveying channel 620. The feed pipe connector can be connected to the feed pipe connected to the hot end of the 3D printer, thereby allowing the consumables to enter the 3D printer for use.

[0040] The first driving member includes a first screw rod 610, with both ends of the first screw rod 610 rotatably mounted on the slide plate, and the first screw rod 610 is threadedly connected to the movable platform 600. A synchronous belt mechanism 700 is connected between the first screw rod 610 and the third screw rod 310. The synchronous belt mechanism 700 includes a first synchronous pulley 710 and a second synchronous pulley 720. The first synchronous pulley 710 is coaxially mounted on the left end of the first screw rod 610, and the second synchronous pulley 720 is coaxially mounted on the left end of the third screw rod 310. A synchronous belt 740 is sleeved on the outer periphery of the first synchronous pulley 710 and the outer periphery of the second synchronous pulley 720. A tensioning pulley 730 is rotatably mounted on the left side of the first housing 102. The tensioning pulley 730 abuts against the inner side of the synchronous belt 740, keeping the synchronous belt in a tensioned state. The inner side of the synchronous belt 740, the outer peripheral side of the first synchronous wheel 710, and the outer peripheral side of the second synchronous wheel 720 are all provided with teeth, so that the synchronous belt 740 is meshed and connected with the first synchronous wheel 710 and the second synchronous wheel 720, respectively. It should be noted that the position of the movable platform 600 corresponds to the position of the driving block 300, that is, the consumables in the fixed conveying channel 110 connected to the movable conveying channel 620 are in a state of being pressed by the abutment wheel 410. When the third motor drives the third screw 310 to rotate, causing the driving block 300 to move, the synchronous belt mechanism 700 will drive the first screw 610 to rotate, thereby synchronously driving the movable platform 600 to move to the corresponding position.

[0041] Four consumable trays are suspended or connected to the rear side of the base 101. The consumables on each tray are inserted into the corresponding fixed conveying channel 110 one by one. By driving the third motor 320, the drive block 300 is driven to press against the middle of the first balance plate 420 on the left side, so that the consumables in the first fixed conveying channel 110 on the left side are abutted by the abutment wheel 410. At the same time, the movable platform 600 is also driven to move in front of the first fixed conveying channel 110 on the left side, so that the movable conveying channel 620 is connected to the first fixed conveying channel 110 on the left side. The second motor 210 then drives the drive shaft 220 to rotate, thereby rotating all four conveying wheels 200, causing the consumables pressed by the abutment wheel 410 to move in the fixed conveying channel 110, and the consumables are transported to the movable conveying channel 620. The consumables are then transported to the 3D printer through the movable conveying channel 620 for use, realizing the use of the first consumable tray. Due to the elastic force of the first elastic member 500, the contact wheel 410 does not press against the consumables in the other fixed conveying channels 110, thereby preventing the other consumables from being moved by the rotation of the conveying wheel 200. A material end sensor is mounted on the movable platform 600. When the material end sensor senses that the consumables in the movable platform 600 have been conveyed, i.e., the consumables in the first consumable tray have been used up, the rotation of the conveying wheel 200 is paused. The third motor 320 is driven to drive the drive block 300 to press against the middle of the second balance plate 420. Simultaneously, the movable platform 600 moves to the front of the second fixed conveying channel 110, connecting the movable conveying channel 620 with the second fixed conveying channel 110. The conveying wheel 200 is then driven to rotate, allowing the consumables in the second consumable tray to continue to be used. This eliminates the need for manual material reloading, thereby improving the efficiency of printing tasks. Furthermore, the material reloading process is simple and quick, with a short reloading time, thereby ensuring the quality of the fusion connection between different materials before and after the reloading.

[0042] In other embodiments, the number of fixed conveying channels 110 in the fixed platform 100 can also be two, three, five, six, seven, or a plurality of fixed conveying channels 110. Compared to a drive structure that uses a cam to drive the contact wheel 410, since the shaft on which the cam is mounted returns to its initial position after rotating 360 degrees, when a large number of fixed conveying channels 110 are provided, the number of cams also increases, and the angular difference between adjacent cams decreases, making it easy for adjacent cams to simultaneously drive the contact wheels to press the consumables, resulting in the simultaneous conveyance of multiple rolls of consumables. In this embodiment, even if a large number of fixed conveying channels 110 are provided, it will not affect the driving capacity of the drive block 300, and the situation of having multiple contact wheels pressing the consumables for conveyance will not occur at the same time.

[0043] Furthermore, first magnetic members 430 are mounted on the bottom of each left and right end of the balance plate 420, and second magnetic members 440 are mounted on the top of each left and right end of the frame 401. The first magnetic members 430 and the second magnetic members 440 are capable of attracting each other. Due to the mutual attraction between the first magnetic members 430 and the second magnetic members 440, the balance plate 420 is generally tilted, and the tilt direction of the balance plate 420 is toward the driving block 300. This allows the driving block 300 to contact the balance plate 420 via the protrusions 330 regardless of whether it moves left or right. After the protrusions 330 of the driving block 300 pass through the middle of a balance plate 420, the balance plate 420 transitions from a state where the first magnetic member 430 and the second magnetic member 440 on one side are attracted and attached to each other to a state where the first magnetic member 430 and the second magnetic member 440 on the other side are attracted and attached to each other. This ensures that the protrusions 330 of the driving block 300 can contact the corresponding balance plate 420 during movement, thereby ensuring the reliability of the driving block 300 driving the balance plate 420. The first magnetic member 430 and the second magnetic member 440 are magnets with opposite magnetic poles, or one of the first magnetic member 430 and the second magnetic member 440 is a magnet and the other is made of iron.

[0044] Furthermore, transverse cutting blades 800 are mounted on both sides of the movable platform 600. Each of the two transverse cutting blades 800 has a blade on its opposite side, and the transverse cutting blades 800 are positioned close to the front of the base 101. As the movable platform 600 moves, it cuts off any consumables protruding from the adjacent fixed conveyor channel 110 on the moving direction, thereby ensuring that the movable platform 600 can smoothly move to the adjacent fixed conveyor channel 110.

[0045] In another embodiment, the side where the two transverse cutting knives 800 are close to each other can be extended to a position close to the fixed conveying channel 110, and the side where the two transverse cutting knives 800 are close to each other can also be provided with a blade, and the inner blades of the two transverse cutting knives 800 are respectively located at the left and right sides of the corresponding fixed conveying channel 110. Under normal circumstances, the inner blades of the two transverse cutting knives 800 will not affect the conveying of consumables in the fixed conveying channel 110. When it is necessary to switch between different consumable trays, when the movable platform 600 moves, the inner blades of the transverse cutting knives 800 can cut off the currently conveyed consumables, thereby realizing the conveying switching between different consumable trays. When the consumables in different consumable trays are of different colors, the color of the consumables can be changed.

[0046] Furthermore, the movable platform 600 is also equipped with a cutting seat 820, a fourth driving member 830 and a longitudinal cutting knife 810. The fourth driving member 830 is a small electric push rod, the output end of which is set downward and connected to the longitudinal cutting knife 810 by bolts. The two sides of the bottom of the longitudinal cutting knife 810 are inclined surfaces, so that the vertical cross-section of the bottom of the longitudinal cutting knife 810 is V-shaped, and the inclined surfaces on both sides of the bottom of the longitudinal cutting knife 810 are both cutting edges. The cutting seat 820 is located below the longitudinal cutting knife 810, and a V-shaped groove is formed on the top of the cutting seat 820. A cutting groove 821 is also provided on the top of the cutting seat 820, and the cutting groove 821 can be embedded in the longitudinal cutting knife 810. The longitudinal cutting knife 810 and the cutting seat 820 are respectively located on the upper and lower sides of the movable conveying channel 620. When the fourth driving member 830 is driven to drive the longitudinal cutting knife 810 to move downward, the longitudinal cutting knife 810 can cut off the consumables passing through the movable conveying channel 620, thereby achieving material cutting.

[0047] In other embodiments, the first screw 610 may not be provided, and the movable platform 600 may be connected to the driving block 300. When the driving block 300 moves, the movable platform 600 is directly driven to move. The first driving member is the third motor 320 and the third screw 310. This can further simplify the overall structure.

[0048] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the scope of the present invention.

Claims

1. A 3D printer remote feeder, characterized in that: The lifting mechanism is a pair of fixedly mounted on two ends of the lifting mechanism, and the fixedly mounted on two ends of the lifting mechanism has a pair of fixedly mounted on two ends of the lifting mechanism, and the fixing mechanism has a pair of fixedly mounted on two ends of the lifting mechanism. The movable table is slidably mounted with a driving block, and all the balancing plates are arranged side by side along the sliding direction of the driving block, and the fixed table is equipped with a third driving member for driving the driving block to move; when the driving block moves, the driving block can move from one end of any one of the balancing plates to the other end; when the driving block moves to abut against the middle of the balancing plate, the driving block presses the balancing plate, so that the sliding member overcomes the elastic force of the first elastic member and makes the abutting wheel approach the conveying wheel, thereby making the abutting wheel and the conveying wheel clamp the consumables in the fixed conveying channel; the movable table is provided with a movable conveying channel, and the first driving member is used to drive the movable table to slide, so that the movable conveying channel is connected to one of the fixed conveying channels; A first magnetic member is installed at each end of the balance plate, and a second magnetic member that can be attracted to the first magnetic member on the corresponding side is installed on each side of the sliding member. When the driving block moves from one end of the balance plate to the other end, the first magnetic member at one end of the balance plate is separated from the second magnetic member on the corresponding side, and the first magnetic member at the other end of the balance plate is attracted to the second magnetic member on the corresponding side.

2. The 3D printer remote feeder according to claim 1, characterized in that: The third driving member includes a third screw rotatably mounted on the fixed platform, the fixed platform is equipped with a third motor for driving the third screw to rotate, and the third screw is threadedly connected to the driving block; the first driving member includes a first screw rotatably mounted on the fixed platform, the first screw is threadedly connected to the movable platform, and a synchronous belt mechanism for transmission connection is installed between the first screw and the third screw.

3. A 3D printer remote feeder according to claim 2, characterized in that: The synchronous belt mechanism includes a first synchronous wheel installed on the first screw and a second synchronous wheel installed on the third screw. The first synchronous wheel and the second synchronous wheel are jointly sleeved with a synchronous belt. The fixed platform is rotatably installed with a tensioning wheel that presses against the inner side of the synchronous belt. The first synchronous wheel and the second synchronous wheel are respectively engaged with the synchronous belt.

4. The 3D printer remote feeder according to claim 1, characterized in that: The third driving member includes a third screw rotatably mounted on the fixed platform, the fixed platform is equipped with a third motor for driving the third screw to rotate, and the third screw is threadedly connected to the driving block; the movable platform is connected to the driving block, and the first driving member is the third motor and the third screw.

5. The 3D printer remote feeder according to claim 1, characterized in that: The sliding member is slidably mounted with a slider, the sliding direction of the slider is the same as the sliding direction of the sliding member, the slider is mounted with a rotating shaft, the abutment wheel is rotatably mounted on the rotating shaft, the sliding member is mounted with a second elastic member, the second elastic member provides elastic force to push the slider so that the abutment wheel is close to the conveying wheel.

6. The 3D printer remote feeder according to claim 1, characterized in that: The driving block is formed with a protrusion for contacting the balancing plate, and the balancing plate is provided with a limiting groove for the protrusion to extend into and slide.

7. The 3D printer remote feeder according to claim 1, characterized in that: Transverse cutting knives capable of cutting the consumables are installed on both sides of the movable platform, and the blades of the two transverse cutting knives are respectively located at one side away from each other.

8. The 3D printer remote feeder according to claim 7, characterized in that: The sides of the two transverse cutting knives that are close to each other are respectively located at two sides of the opening of the movable conveying channel and are both provided with blades.

9. The 3D printer remote feeder according to claim 1, characterized in that: The movable platform is equipped with a cutting seat and a sliding longitudinal cutting knife. The longitudinal cutting knife and the cutting seat are respectively located on both sides of the movable conveying channel. The cutting seat is provided with a cutting groove. The movable platform is equipped with a fourth driving member for driving the longitudinal cutting knife to embed into the cutting groove.

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