Feeding device for 3D printing

Abstract

The utility model belongs to the technical field of 3D printers, and discloses a feeding device for 3D printing, which comprises a feeding plate, the top end of the feeding plate is fixedly connected with a fixing frame, the inner surface of the fixing frame is rotatably connected with a material storage rod, one end of the fixing frame is fixedly connected with a feeding motor, and the other end of the fixing frame is fixedly connected with a discharging motor. The output end of the feeding motor penetrates through one end of the fixing frame and is fixedly connected with the material storage rod, a feeding mechanism is installed at the top end of the feeding plate and comprises a movable plate, and the two ends of the movable plate are in sliding connection with the inner walls of the two sides of the feeding plate respectively. The power motor drives the rotating shaft to rotate to promote the bevel gear set to perform accurate transmission, so that the roller is driven to operate stably, for printing raw materials which are soft in texture and prone to deformation, the conditions of indentation and internal structure damage of the raw materials can be effectively reduced, the defective rate is effectively reduced, and the problems that the surfaces of printed products are uneven, and the internal structure strength is reduced are solved.

Description

Technical Field

[0001] This utility model belongs to the field of 3D printer technology, specifically a feeding device for 3D printing. Background Technology

[0002] In today's manufacturing and creative design fields, 3D printing technology is experiencing rapid development, breaking many limitations of traditional manufacturing processes and making the rapid prototyping of complex structures a reality. Throughout the 3D printing process, the feeding device plays a crucial role.

[0003] Meanwhile, the patent specification with application number CN218256822U discloses a raw material conveying device for 3D printing, "including a base, a consumable rack on the upper surface of the base, printing consumables inside the consumable rack, rubber pads fixedly installed at both ends on the lower surface of the base, roller racks near both ends on the upper surface of the base, an electric wire clamp on one side of the consumable rack, and the consumable rack including a mounting plate, a slide groove, a slider, a spring telescopic rod, a frame plate and rollers, the mounting plate being fixedly installed on the upper surface of the base, and the slide groove being opened at one end of the upper surface of the mounting plate";

[0004] Most existing 3D printer feeding devices use two gears to clamp and transport materials. For some soft or easily deformable printing materials, this can easily lead to indentations on the surface of the material or even damage to the internal structure, affecting print quality and causing problems such as uneven surfaces and reduced internal structural strength in the printed products. Secondly, most existing 3D printer feeding devices cannot adjust the roller spacing. When using 3D printing materials of different diameters, it may not be possible to guarantee effective clamping and transport of the material, and it is not possible to control the feeding speed and force well, affecting the adaptability to different materials.

[0005] Therefore, a feeding device for 3D printing is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a feeding device for 3D printing, which has the advantages of effectively reducing the defect rate, reducing problems such as uneven surface and reduced internal structural strength of printed products, and accurately controlling the feeding speed and force of raw materials of different diameters, thereby effectively improving the adaptability of the device to different materials.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for 3D printing, comprising a feeding plate, a fixed frame fixedly connected to the top of the feeding plate, a storage rod rotatably connected to the inner surface of the fixed frame, a feeding motor fixedly connected to one end of the fixed frame, the output end of the feeding motor passing through one end of the fixed frame and fixedly connected to the storage rod, a feeding mechanism installed at the top of the feeding plate, the feeding mechanism comprising a moving plate, the two ends of the moving plate being slidably connected to the inner walls of the two sides of the feeding plate respectively, and two support blocks fixedly connected to the bottom ends of both the moving plate and the feeding plate, the corresponding two support blocks... The feeding plate is rotatably connected to a roller. Two support blocks are fixedly connected to the bottom of the feeding plate. One end of one of the support blocks is fixedly connected to a power motor. The output end of the power motor passes through the corresponding support block and is fixedly connected to a rotating shaft. The two support blocks are rotatably connected to the rotating shaft. The outer surface of the rotating shaft is provided with two bevel gears. The outer surfaces of the two bevel gears are meshed with bevel gears. One end of each of the two rollers passes through the corresponding support block and is fixedly connected to the two bevel gears. One end of the moving plate is fixedly connected to a moving block, and the moving block is slidably connected to the feeding plate.

[0008] Preferably, the outer surfaces of both rollers are coated with an anti-slip coating.

[0009] Preferably, the inner surface of the movable block is rotatably connected to a rotating ring, and one end of the movable block is rotatably connected to one of the bevel gears, while the inner surface of the other bevel gear is fixedly sleeved with the rotating shaft.

[0010] Preferably, two limiting strips are fixedly connected to the outer surface of the rotating shaft, and the inner surfaces of the rotating ring and the bevel gear are both provided with limiting grooves that cooperate with the two limiting strips.

[0011] Preferably, the bottom end of the feeding plate is provided with a guide groove, and the top end of the moving block is fixedly connected with a guide block that cooperates with the guide groove.

[0012] Preferably, slide rails are fixedly connected to the inner walls of both sides of the feeding plate, and the two ends of the moving plate are slidably connected to the two slide rails respectively. An adjusting screw is threaded onto the inner surface of the feeding plate, and the adjusting screw passes through one end of the feeding plate and is rotatably connected to the moving plate.

[0013] Preferably, a rotating handle is fixedly connected to the end of the adjusting screw away from the moving plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting up a feeding mechanism, uses a power motor to drive the rotating shaft to cause the bevel gear set to transmit precisely, thereby driving the roller to run smoothly. For soft and easily deformable printing materials, it can effectively reduce the occurrence of indentations and internal structural damage to the materials, effectively reduce the defect rate, and reduce problems such as uneven surface and reduced internal structural strength of printed products.

[0016] 2. By setting up a movable plate, and with the action of the movable plate and the adjusting screw, when facing printing materials of different diameters, rotating the adjusting screw, under the action of the limiting strip and the limiting groove, allows the device to accurately adjust the spacing. Therefore, it can accurately control the feeding speed and force of materials of different diameters, and can effectively improve the adaptability of the device to different materials. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the feeding mechanism of this utility model;

[0019] Figure 3 This is an exploded view of the rotating ring and shaft structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the feeding plate and moving plate structure of this utility model.

[0021] In the diagram: 1. Feeding plate;

[0022] Feeding mechanism; 21. Support block one; 22. Anti-slip coating; 23. Roller; 24. Bevel gear two; 25. Rotating shaft; 26. Support block two; 27. Bevel gear one; 28. Moving block; 29. ​​Power motor; 30. Moving plate; 301. Adjusting screw; 302. Rotating handle; 303. Slide rail; 31. Limiting strip; 32. Rotating ring; 33. Limiting groove; 34. Guide block; 341. Guide groove; 3. Fixing frame;

[0023] 4. Feeding motor; 5. Storage rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 4As shown, this utility model provides a feeding device for 3D printing, including a feeding plate 1. The feeding plate 1 serves as the basic supporting component of the entire device, providing installation positions for other components and facilitating the installation of the device on one side of the printer. A fixing frame 3 is fixedly connected to the top of the feeding plate 1. A storage rod 5 is rotatably connected to the inner surface of the fixing frame 3. A feeding motor 4 is fixedly connected to one end of the fixing frame 3. The output end of the feeding motor 4 passes through one end of the fixing frame 3 and is fixedly connected to the storage rod 5. A feeding mechanism 2 is installed on the top of the feeding plate 1.

[0026] The feeding mechanism 2 includes a movable plate 30, with both ends of the movable plate 30 slidably connected to the inner walls of both sides of the feeding plate 1. Two support blocks 21 are fixedly connected to the bottom ends of both the movable plate 30 and the feeding plate 1. A roller 23 is rotatably connected to the corresponding two support blocks 21. Two support blocks 26 are fixedly connected to the bottom end of the feeding plate 1. A power motor 29 is fixedly connected to one end of one of the support blocks 26. The output end of the power motor 29 passes through the corresponding support block 26 and is fixedly connected to a rotating shaft 25. The two rollers 26 are rotatably connected to the rotating shaft 25. The outer surface of the rotating shaft 25 is provided with two bevel gears 27. The outer surfaces of the two bevel gears 27 are meshed with bevel gears 24. One end of each roller 23 passes through a corresponding support block 21 and is fixedly connected to the two bevel gears 24. One end of the moving plate 30 is fixedly connected to a moving block 28. The moving block 28 is slidably connected to the feeding plate 1. Through the transmission of the bevel gear set, the two rollers 23 can be precisely controlled to rotate synchronously, ensuring that the material is subjected to uniform force and moved forward stably.

[0027] Specifically, the outer surfaces of both rollers 23 are coated with anti-slip paint 22. The anti-slip paint 22 can increase the friction between the rollers 23 and the material, effectively preventing the material from slipping or deviating during the conveying process, and ensuring the accuracy and efficiency of feeding.

[0028] like Figures 1 to 4 As shown, a rotating ring 32 is rotatably connected to the inner surface of the moving block 28, and one end of the moving block 28 is rotatably connected to one of the bevel gears 27. The inner surface of the other bevel gear 27 is fixedly sleeved with the rotating shaft 25. The setting of the rotating ring 32 makes the connection between the bevel gear 27 and the moving block 28 more flexible. It can ensure that the bevel gear 27 rotates with the roller 23, and can also adapt to the sliding of the moving block 28, ensuring stable power transmission and not affecting the overall operation of the feeding mechanism 2.

[0029] Furthermore, two limiting strips 31 are fixedly connected to the outer surface of the rotating shaft 25. The inner surfaces of the rotating ring 32 and the bevel gear 27 are both provided with limiting grooves 33 that cooperate with the two limiting strips 31. This can limit the axial displacement of the bevel gear 27 on the rotating shaft 25, prevent the bevel gear 27 from deviating or falling off during rotation, ensure the reliability of the transmission system, and thus maintain stable feeding.

[0030] like Figures 1 to 4 As shown, a guide groove 341 is provided at the bottom of the feeding plate 1, and a guide block 34 is fixedly connected to the top of the moving block 28 to cooperate with the guide groove 341. The sliding of the moving block 28 provides precise guidance, making the moving block 28 move more smoothly and steadily, avoiding skewness during the sliding process, ensuring the accuracy of the feeding mechanism 2's action, and improving the feeding quality.

[0031] It is worth noting that slide rails 303 are fixedly connected to the inner walls of both sides of the feeding plate 1. The two ends of the moving plate 30 are slidably connected to the two slide rails 303 respectively. An adjusting screw 301 is threaded onto the inner surface of the feeding plate 1. The adjusting screw 301 passes through one end of the feeding plate 1 and is rotatably connected to the moving plate 30. The adjusting screw 301 allows the operator to manually fine-tune the position of the moving plate 30 and flexibly adjust it according to different material thicknesses and feeding speed requirements, thereby enhancing the versatility of the device.

[0032] like Figures 1 to 4 As shown, a rotating handle 302 is fixedly connected to the end of the adjusting screw 301 away from the moving plate 30. The rotating handle 302 makes it easier for the operator to apply force to rotate the adjusting screw 301, making the operation more labor-saving and convenient.

[0033] The feeding motor 4 and the power motor 29 are existing technologies and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switches, which are not the main technical points of this patent and will not be described in detail. The wiring diagram of the motor in this utility model is common knowledge in the field, and its working principle is already known technology. The appropriate model is selected based on actual use; therefore, the control method and wiring layout of the motor will not be explained in detail.

[0034] Working principle and process: First, the material is placed on the storage rod 5. The feeding motor 4 is started, which drives the storage rod 5 to rotate, causing the material to slowly fall onto the roller 23. Then, the power motor 29 is started, and its output end drives the rotating shaft 25 to rotate. The bevel gear 27 on the rotating shaft 25 rotates accordingly. Since the bevel gear 27 meshes with the bevel gear 24, the bevel gear 24 drives the roller 23 to rotate. Under the action of the anti-slip coating 22, the two rollers 23 rely on the friction between themselves and the material to convey the material forward. When it is necessary to adjust the spacing of the rollers 23 to convey raw materials of different diameters, the operator turns the rotating handle 302, which drives the adjusting screw 301 to rotate, thereby pushing the moving plate 30 to slide on the slide rail 303. The moving plate 30 drives the moving block 28 to move along the guide groove 341, so as to realize the precise adjustment of the position of the feeding mechanism 2 to meet different feeding requirements.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding device for 3D printing, comprising a feeding plate (1), characterized in that: The top of the feeding plate (1) is fixedly connected to a fixed frame (3), and the inner surface of the fixed frame (3) is rotatably connected to a storage rod (5). One end of the fixed frame (3) is fixedly connected to a feeding motor (4), and the output end of the feeding motor (4) passes through one end of the fixed frame (3) and is fixedly connected to the storage rod (5). The top of the feeding plate (1) is equipped with a feeding mechanism (2). The feeding mechanism (2) includes a movable plate (30), the two ends of which are slidably connected to the inner walls of the two sides of the feeding plate (1). The bottom ends of the movable plate (30) and the feeding plate (1) are both fixedly connected to two support blocks (21). The two support blocks (21) are rotatably connected to a roller (23). The bottom end of the feeding plate (1) is fixedly connected to two support blocks (26). One end of one of the support blocks (26) is fixedly connected to a power motor (29). The output end of the power motor (29) passes through the corresponding support block. Support block 2 (26) is fixedly connected to a rotating shaft (25). The two support blocks 2 (26) are rotatably connected to the rotating shaft (25). The outer surface of the rotating shaft (25) is provided with two bevel gears 1 (27). The outer surfaces of the two bevel gears 1 (27) are meshed with bevel gears 2 (24). One end of the two rollers (23) passes through the corresponding support block 1 (21) and is fixedly connected to the two bevel gears 2 (24). One end of the moving plate (30) is fixedly connected to a moving block (28). The moving block (28) is slidably connected to the feeding plate (1).

2. The feeding device for 3D printing according to claim 1, characterized in that: The outer surfaces of both rollers (23) are coated with anti-slip paint (22).

3. The feeding device for 3D printing according to claim 1, characterized in that: The inner surface of the movable block (28) is rotatably connected to a rotating ring (32), and one end of the movable block (28) is rotatably connected to one of the bevel gears (27), while the inner surface of the other bevel gear (27) is fixedly sleeved with the rotating shaft (25).

4. A feeding device for 3D printing according to claim 3, characterized in that: Two limiting strips (31) are fixedly connected to the outer surface of the rotating shaft (25), and the inner surfaces of the rotating ring (32) and the bevel gear (27) are provided with limiting grooves (33) that cooperate with the two limiting strips (31).

5. A feeding device for 3D printing according to claim 1, characterized in that: The bottom end of the feeding plate (1) is provided with a guide groove (341), and the top end of the moving block (28) is fixedly connected with a guide block (34) that works in conjunction with the guide groove (341).

6. A feeding device for 3D printing according to claim 1, characterized in that: The inner walls of both sides of the feeding plate (1) are fixedly connected with slide rails (303). The two ends of the moving plate (30) are slidably connected to the two slide rails (303) respectively. The inner surface of the feeding plate (1) is threaded with an adjusting screw (301). The adjusting screw (301) passes through one end of the feeding plate (1) and is rotatably connected to the moving plate (30).

7. A feeding device for 3D printing according to claim 6, characterized in that: The end of the adjusting screw (301) away from the moving plate (30) is fixedly connected to a rotating handle (302).

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