Folding feeding mechanism

Abstract

The utility model discloses a folding feeding mechanism. The folding feeding mechanism comprises a printer; the electric control wire feeding box is fixedly connected to the upper end of the back of the printer; the bracket is fixed at the lower end of the back of the printer; and the material tray frame is connected to the support, and a consumable material tray is connected to the material tray frame. Foldable design is adopted, the rotating part and the first rotating shaft are matched in a rotating mode, the tray frame can be unfolded when used and folded and stored when not used, the occupied space of the printer is greatly saved, transportation and storage of the printer are facilitated, meanwhile, due to the folding structure, enough operation space is formed between the adjacent trays, and the operation efficiency of the printer is improved. Printing supplies are convenient to replace; through the double-layer composite structure design of the transmission cylinder, the inner layer is made of a polytetrafluoroethylene material to realize smooth rotation, and the outer layer is made of a silica gel material to provide stable support, so that the tray rack can stably support a plurality of trays in an unfolded state, and the problem of unsmooth wire feeding caused by unstable support in the printing process is avoided.

Description

Technical Field

[0001] This utility model relates to the field of additive manufacturing technology, specifically to a folding feeding mechanism. Background Technology

[0002] Currently, multi-color 3D printers generally use a multi-tray feeding method to achieve multi-color printing. Typically, multiple filament trays are placed at the back or side of the printer, and the filament is delivered to the print head via a filament feeding mechanism. Most existing tray mounting brackets use a fixed structure, fixing multiple trays side-by-side to the printer; this structure achieves basic filament feeding functionality.

[0003] For example, the existing patent publication number CN210759282 discloses a three-color 3D printer, including a frame, a worktable, a lifting device, and a mixing nozzle. This allows different primary color filaments to be mixed to produce different colored mixtures. When printing with a single color filament is required, the adjusting nut can be rotated to clamp and fix the corresponding single-color filament with the clamping arm, preventing unnecessary single-color filaments from participating in the heating and mixing process. This results in more accurate colors in the printed product and ensures print quality. However, multi-color printers require multiple filament trays to be installed simultaneously. Fixed filament tray racks occupy a large space, making it inconvenient to move and store the printer. Furthermore, the small spacing between multiple filament trays placed side-by-side makes filament replacement inconvenient. During printing, if filament needs to be replaced, the compact structure of the filament tray rack can easily cause the printing filament to become entangled, affecting print quality. In addition, most existing filament tray rack structures are integrated with the printer, making printer maintenance and repair difficult.

[0004] Therefore, there is an urgent need for a compact, easy-to-store, and convenient-to-operate folding feeding mechanism to address the shortcomings of existing multi-color 3D printer feeding systems. Utility Model Content

[0005] The purpose of this invention is to provide a folding feeding mechanism to solve the problems existing in the feeding mechanisms of existing multi-color 3D printers mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a folding feeding mechanism, comprising:

[0007] printer;

[0008] An electrically controlled wire feed box is fixedly connected to the upper back of the printer;

[0009] A bracket is fixed to the lower back of the printer;

[0010] A material tray rack is connected to the support frame, and a consumable material tray is connected to the material tray rack.

[0011] Preferably, the support includes:

[0012] The back panel is fixed to the lower back of the printer by bolts;

[0013] Several sets of connecting parts are equidistantly and integrally connected to the side of the back plate away from the printer, and the connecting parts are in the form of a "U" shape.

[0014] The first rotating shaft is fixedly inserted inside several sets of the connecting parts.

[0015] Preferably, the tray rack includes:

[0016] Several sets of rotating parts are rotatably connected to the first rotating shaft, and the several sets of rotating parts are respectively connected to the inner side of several sets of connecting parts;

[0017] The supporting and fixing part is integrally connected with several sets of the rotating parts;

[0018] Two sets of second rotating shafts are fixedly inserted at intervals into the two sets of several sets of the rotating parts;

[0019] Several sets of transmission cylinders are movably mounted on two sets of the second rotating shafts;

[0020] The width of the support fixing part is adapted to the width of the inner side of the connecting part, and a material tray placement area is formed between every two sets of adjacent rotating parts.

[0021] Preferably, the transmission cylinder comprises:

[0022] The inner cylinder is made of polytetrafluoroethylene and slides with the second rotating shaft.

[0023] The outer sleeve, made of silicone, is fixedly fitted onto the outer surface of the inner cylinder.

[0024] Preferably, the lower end of the consumable material tray is connected to the tray placement area, and each tray placement area is provided with two sets of transmission cylinders, and the consumable material tray is movably connected to the two sets of transmission cylinders.

[0025] Preferably, a reinforcing groove is formed in the surface of the support fixing part.

[0026] Preferably, two sets of second adsorption blocks are fixedly embedded in the bottom, and the supporting fixing part is rotated to make the two sets of first adsorption blocks magnetically connected to the two sets of second adsorption blocks.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] 1) This application adopts a foldable design. Through the rotation of the rotating part and the first rotating shaft, the material tray rack can be unfolded when in use and folded for storage when not in use, which greatly saves the space occupied by the printer and facilitates the transportation and storage of the printer. At the same time, the folding structure provides sufficient operating space between adjacent material trays, making it easy to replace printing consumables.

[0029] 2) This application uses a double-layer composite structure design for the transmission cylinder. The inner layer is made of polytetrafluoroethylene to achieve smooth rotation, and the outer layer is made of silicone to provide stable support. This allows the tray frame to stably support multiple trays when unfolded, avoiding the problem of poor filament feeding caused by unstable support during printing.

[0030] 3) This application provides a magnetic adsorption structure on the support and fixing part. Through the magnetic cooperation of the first adsorption block and the second adsorption block, the folded material tray rack can be firmly attached to the electronically controlled wire feeding box, which not only ensures the stability of the storage state, but also does not affect the normal use of the printer. At the same time, the reinforcing groove design on the support and fixing part improves the overall structural strength and ensures the reliability of multi-material tray support.

[0031] 4) This application employs a modular design, with the bracket and printer connected by bolts, facilitating disassembly and assembly, and simplifying printer maintenance and repair. Simultaneously, the rational layout of the material tray placement area and the arrangement of the transmission cylinder ensure even distribution of multiple material trays, guaranteeing a stable supply of consumables for each color during multi-color printing and improving print quality. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of this application in use;

[0033] Figure 2 This is a schematic diagram of the structure after the consumable material tray has been disassembled in this application;

[0034] Figure 3 This is a schematic diagram of the support and tray rack structure of this application;

[0035] Figure 4 This is a partial structural diagram of this application;

[0036] Figure 5 This is a schematic diagram of the transmission cylinder structure of this application;

[0037] Figure 6 This is a structural diagram of the folded storage tray rack of this application.

[0038] In the picture:

[0039] 1. Printer;

[0040] 2. Electrically controlled wire feeding box; 21. Second adsorption block;

[0041] 3. Bracket; 31. Backplate; 32. Connecting part; 33. First pivot;

[0042] 4. Material tray frame; 41. Rotating part; 42. Support and fixing part;

[0043] 421. Reinforcing groove; 422. First adsorption block; 43. Second rotating shaft;

[0044] 44. Transmission cylinder; 441. Inner cylinder; 442. Outer sleeve;

[0045] 45. Tray placement area;

[0046] 5. Consumable materials tray. Detailed Implementation

[0047] 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.

[0048] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] Please see Figure 1-6 This utility model provides a technical solution: a folding feeding mechanism, comprising:

[0051] Printer 1;

[0052] The electronically controlled wire feed box 2 is fixedly connected to the upper back of the printer 1;

[0053] The bracket 3 is fixed to the lower back of the printer 1;

[0054] The material tray 4 is connected to the support 3, and the consumable material tray 5 is connected to the material tray 4.

[0055] Specifically, by setting the electrically controlled filament feed box 2 and the bracket 3 on the back of the printer 1, and connecting the material tray frame 4 to the bracket 3, a complete folding feeding system is formed. This modular design allows the entire feeding mechanism to be quickly installed and disassembled as needed, facilitating the maintenance and transportation of the printer 1. At the same time, the structural layout of placing the electrically controlled filament feed box 2 at the top and the material tray frame 4 at the bottom ensures smooth filament feeding and places the heavier consumable tray 5 at the bottom, improving the overall structural stability.

[0056] Reference manual attached Figure 1-4 The support 3 includes:

[0057] The back panel 31 is fixed to the lower back of the printer 1 by bolts;

[0058] Several sets of connecting parts 32 are equidistantly and integrally connected to the side of the back panel 31 away from the printer 1, and the connecting parts 32 have a "U" shaped structure;

[0059] The first rotating shaft 33 is fixedly inserted inside several sets of connecting parts 32.

[0060] Specifically, the bracket 3 adopts a combination structure of back plate 31 and several sets of U-shaped connecting parts 32, and is connected to the printer 1 by bolt fixing, realizing reliable modular installation. The equidistant design of the U-shaped connecting parts 32 not only provides stable support, but also provides a basis for the uniform distribution of the subsequent consumable material tray 5. The design of the first rotating shaft 33 passing through the inner side of the connecting part 32 provides a reliable rotation fulcrum for the material tray frame 4.

[0061] Reference manual attached Figure 3-4 The tray rack 4 includes:

[0062] Several sets of rotating parts 41 are rotatably connected to the first rotating shaft 33, and the several sets of rotating parts 41 are respectively connected to the inner side of several sets of connecting parts 32;

[0063] The support and fixing part 42 is integrally connected with several sets of rotating parts 41;

[0064] Two sets of second rotating shafts 43 are fixedly inserted at intervals into two sets of several sets of rotating parts 41;

[0065] Several sets of transmission cylinders 44 are respectively movably mounted on two sets of second rotating shafts 43;

[0066] The width of the support fixing part 42 is adapted to the width of the inner side of the connecting part 32, and a material tray placement area 45 is formed between every two sets of adjacent rotating parts 41.

[0067] Specifically, the tray frame 4 and the support 3 are connected by a rotatable connection, which can be achieved by a rotating shaft, a hinge shaft, screws, or other means.

[0068] Specifically, the structural design of the tray rack 4 achieves the folding function through the cooperation of the rotating part 41 and the first rotating shaft 33. The integrated design of the support fixing part 42 and the rotating part 41 ensures the structural strength. The two sets of second rotating shafts 43, together with the transmission cylinder 44, form a stable tray support system. By setting the tray placement area 45 between adjacent rotating parts 41, the reasonable distribution of multiple consumable trays 5 is achieved, ensuring that the spacing between multiple consumable trays 5 during installation is moderate, which facilitates operation and replacement of consumables.

[0069] Specifically, this application adopts a foldable design. Through the rotational cooperation between the rotating part 41 and the first rotating shaft 33, the material tray rack 4 can be unfolded when in use and folded away when not in use, which greatly saves the space occupied by the printer 1 and facilitates the transportation and storage of the printer 1. At the same time, the folding structure provides sufficient operating space between adjacent material trays, making it easy to replace printing consumables.

[0070] Reference manual attached Figure 5 The transmission cylinder 44 includes:

[0071] The inner cylinder 441 is made of polytetrafluoroethylene and slides with the second rotating shaft 43.

[0072] The outer sleeve 442 is made of silicone and is fixedly fitted onto the outer surface of the inner cylinder 441.

[0073] Specifically, the transmission cylinder 44 adopts a double-layer composite structure design. The inner cylinder 441 is made of polytetrafluoroethylene and forms a low-friction sliding fit with the second rotating shaft 43 to ensure smooth rotation. The outer sleeve 442 is made of silicone, which provides greater friction and keeps the consumable material tray 5 stable during support, avoiding the problem of poor filament feeding caused by tray shaking during printing.

[0074] Reference manual attached Figure 1The lower end of the consumable material tray 5 is connected to the tray placement area 45. Each tray placement area 45 has two sets of transmission cylinders 44, and the consumable material tray 5 is movably connected to the two sets of transmission cylinders 44. Specifically, the two sets of transmission cylinders 44 in each tray placement area 45 form a double-point support structure, which makes a stable moving contact between the tray frame 4 and the transmission cylinders 44. This ensures the reliability of the support without affecting the rotation of the consumable material tray 5, achieving a balance between structural stability and flexibility. Furthermore, the multiple tray placement areas 45 are separated from each other, avoiding feeding failures caused by contact between different consumable material trays 5.

[0075] Reference manual attached Figure 1-4 A reinforcing groove 421 is provided in the surface of the support fixing part 42.

[0076] Specifically, a reinforcing groove 421 is formed on the surface of the support and fixing part 42. Through structural optimization, the overall rigidity of the support and fixing part 42 is improved, the overall weight is reduced, and it plays a role similar to a reinforcing rib, making the whole structure both lightweight and strong, and meeting the strength requirements of multi-plate support.

[0077] Reference manual attached Figure 1-6 Two sets of first adsorption blocks 422 are fixedly embedded in the surface of the support fixing part 42, and two sets of second adsorption blocks 21 are fixedly embedded in the bottom of the electrically controlled wire feeding box 2. The support fixing part 42 can be rotated to make the two sets of first adsorption blocks 422 and the two sets of second adsorption blocks 21 magnetically connected. Specifically, by setting the first adsorption blocks 422 and the second adsorption blocks 21 at the bottom of the support fixing part 42 and the electrically controlled wire feeding box 2 respectively, the material tray frame 4 is reliably fixed in the folded state by utilizing the principle of magnetic adsorption. This magnetic fixing method is convenient and quick, does not affect the unfolding operation, and avoids the wear and jamming problems that may be caused by traditional mechanical locking structures.

[0078] Specifically, this application employs a modular design, with the bracket 3 and printer 1 connected by bolts, facilitating disassembly and assembly, and simplifying maintenance and repair of the printer 1. Simultaneously, the rational layout of the material tray placement area 45 and the arrangement of the transmission cylinder 44 ensure even distribution of multiple consumable trays 5, guaranteeing a stable supply of consumables for each color during multi-color printing and improving print quality.

[0079] Specifically, please refer to the attached instruction manual. Figure 1 At this time, the tray frame 4 is flipped to be perpendicular to the back of the printer 1, and the bottom surface of the tray frame 4 is at the same level as the bottom surface of the printer 1. At this time, the inner bottom surface of the "U" shaped structure is in contact with the bottom surface of the rotating part 41.

[0080] Specifically, please refer to the attached instruction manual. Figure 6When the consumable tray 5 is not in use, the tray frame 4 can be flipped over and connected to the back of the printer 1. At this time, the first adsorption block 422 and the second adsorption block 21 are magnetically connected, and the tray frame 4 can be fixed to the back of the printer 1 and the bottom of the electronically controlled wire feeding box 2, so as to achieve storage and folding.

[0081] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A folding feeding mechanism, characterized in that, include: Printer (1); The electronically controlled wire feed box (2) is fixedly connected to the upper back of the printer (1); The bracket (3) is fixed to the lower back of the printer (1); The material tray (4) is connected to the support (3), and the material tray (4) is connected to the consumable material tray (5).

2. The folding feeding mechanism according to claim 1, characterized in that, The support (3) includes: The back panel (31) is fixed to the lower back of the printer (1) by bolts; Several sets of connecting parts (32) are equidistantly and integrally connected to the side of the back plate (31) away from the printer (1), and the connecting parts (32) are in the form of a "U" shape. The first rotating shaft (33) is fixedly inserted inside the several sets of connecting parts (32).

3. The folding feeding mechanism according to claim 2, characterized in that, The tray rack (4) includes: Several sets of rotating parts (41) are rotatably connected to the first rotating shaft (33), and several sets of rotating parts (41) are respectively connected to the inner side of several sets of connecting parts (32); The support fixing part (42) is integrally connected with several sets of the rotating parts (41); Two sets of second rotating shafts (43) are fixedly inserted at intervals into two sets of several sets of rotating parts (41); Several sets of transmission cylinders (44) are respectively movably mounted on two sets of the second rotating shafts (43); The width of the support fixing part (42) is adapted to the width of the inner side of the connecting part (32), and a material tray placement area (45) is formed between each pair of adjacent rotating parts (41).

4. The folding feeding mechanism according to claim 3, characterized in that, The transmission cylinder (44) includes: The inner cylinder (441) is made of polytetrafluoroethylene and slides with the second rotating shaft (43); The outer sleeve (442) is made of silicone and is fixedly sleeved on the outer surface of the inner cylinder (441).

5. The folding feeding mechanism according to claim 3, characterized in that, The lower end of the consumable material tray (5) is connected to the tray placement area (45). Each tray placement area (45) is provided with two sets of transmission cylinders (44), and the consumable material tray (5) is movably connected to the two sets of transmission cylinders (44).

6. The folding feeding mechanism according to claim 3, characterized in that, The surface of the support fixing part (42) is provided with a reinforcing groove (421).

7. The folding feeding mechanism according to claim 3, characterized in that, Two sets of first adsorption blocks (422) are fixedly embedded in the surface of the support fixing part (42), and two sets of second adsorption blocks (21) are fixedly embedded in the bottom of the electric wire feeding box (2). The support fixing part (42) rotates to make the two sets of first adsorption blocks (422) and the two sets of second adsorption blocks (21) magnetically connected.

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