Self-resetting 3D printed washing mechanism

Abstract

The utility model relates to 3D printing technical field, concretely is a kind of self-resetting 3D printing material washing mechanism, including material washing support, gear housing assembly, gear housing assembly is fixedly installed in material washing support one side, the reduction drive gear assembly is rotatably arranged in gear housing assembly inside, gear housing assembly top is provided with upper cover, the upper cover with gear housing assembly between being provided with driving rack assembly and driven rack assembly, the reduction drive gear assembly is used for the transmission support of driving rack assembly with driven rack assembly. The utility model, while the movement of stop block, reduction drive gear will follow rotation, by rotation drive the reverse direction movement of the driven rack that mesh together to the movement of driving rack, under the action of reset spring, just the consumable residual material that will be popped out on the material collecting groove, need multiple cleaning just repeat this step, until the extra material is squeezed clean.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, specifically to a self-resetting 3D printing material washing mechanism. Background Technology

[0002] Currently, the 3D printer industry is developing rapidly, and the functional requirements for printers are getting higher and higher. The quality of printing is often closely related to the cleanliness of the nozzle. When printing is paused for a period of time and then resumed, there will often be residual material accumulated in the nozzle. Direct printing will affect the quality of the printed product. Therefore, cleaning the residual material in the nozzle is particularly important.

[0003] Therefore, a good printer needs a simple cleaning mechanism, and whether the nozzles are cleaned properly determines the quality of the printed product.

[0004] Therefore, a self-resetting 3D printing material washing mechanism is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a self-resetting 3D printing material washing mechanism, which can solve the problem of inconvenient handling of residual material in existing printer nozzles.

[0006] To achieve the above objectives, this utility model provides the following technical solution, including a washing bracket and a gear housing assembly. The gear housing assembly is fixedly installed on one side of the washing bracket. A reduction transmission gear assembly is rotatably arranged inside the gear housing assembly. A top cover is provided on the top of the gear housing assembly. A driving rack assembly and a driven rack assembly are arranged between the top cover and the gear housing assembly. The reduction transmission gear assembly is located between the driving rack assembly and the driven rack assembly, and the reduction transmission gear assembly is used for transmission support between the driving rack assembly and the driven rack assembly.

[0007] The driven rack assembly includes a scraper that extends to the outside of the gear housing assembly.

[0008] Preferably, the reduction gear assembly consists of a reduction gear and a rotating shaft. The reduction gear consists of an upper large tooth and a lower small tooth, and the rotating shaft is rotatably disposed inside the gear housing assembly at the middle of the reduction gear.

[0009] Preferably, the active rack assembly includes an active rack, a rotating shaft fixing pin, a stop block, a right torsion spring, a left torsion spring, and a return spring.

[0010] Preferably, the active rack is slidably disposed inside the gear housing assembly, the active rack meshes with the upper large tooth inside the upper cover, the return spring is fixedly disposed at one end of the active rack, the rotating shaft fixing pin is rotatably disposed inside one side of the active rack, the left torsion spring and the right torsion spring are both sleeved on the outside of the rotating shaft fixing pin, the rotating shaft fixing pin passes through the stop block, and the left torsion spring and the right torsion spring are simultaneously located inside the stop block.

[0011] Preferably, the driven rack assembly further includes a driven rack, which is engaged with the lower inner teeth of the upper cover, and the scraper is fixedly disposed on one side of the upper surface of the driven rack.

[0012] Preferably, a receiving trough is fixedly connected to the bottom of the gear housing assembly, the receiving trough is located below the scraper, and consumable residue is placed on the receiving trough.

[0013] Compared with the prior art, this utility model provides a self-resetting 3D printing material washing mechanism, which has the following beneficial effects:

[0014] 1. The reduction gear assembly can reduce the movement of the driving rack assembly and the driven rack assembly, ensuring that they move at a differential speed and that their movement speed is controllable. Through the movement of the driven rack assembly, the scraper moves synchronously, pushing the waste material extruded on one side, thus achieving the effect of placing and removing the waste material generated by the device.

[0015] 2. The nozzle of the printer head will first stop at the receiving tray to squeeze out the excess material. When the consumable residue squeezed out by the printhead accumulates in the receiving tray, the printhead's impact block will strike the stop block that is locked together with the active rack.

[0016] 3. While the stop block is moving, the reduction gear will rotate. The rotation will drive the driven rack to move in the opposite direction of the active rack. In this way, the residual consumables accumulated on the collection trough will be ejected by the return spring. If multiple cleaning is required, repeat this step until the excess material is squeezed out. Attached Figure Description

[0017] Figure 1 This is an exploded view of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the gear housing assembly structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the active rack and pinion assembly of this utility model;

[0020] Figure 4 This is a schematic diagram of the driven rack assembly of this utility model;

[0021] Figure 5 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the transmission structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the overall side view of the present invention.

[0024] In the diagram: 1. Washing bracket; 2. Reduction gear assembly; 3. Top cover; 4. Driven rack assembly; 5. Driven rack assembly; 6. Gear housing assembly; 7. Reduction gear; 8. Shaft; 9. Collection trough; 10. Return spring; 11. Left torsion spring; 12. Right torsion spring; 13. Stop block; 14. Shaft fixing pin; 15. Driven rack; 16. Scraper; 17. Driven rack; 18. Consumable residue. Detailed Implementation

[0025] 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.

[0026] Example:

[0027] Please see Figure 1 - Figure 7 The self-resetting top cover 3D printing washing mechanism in this embodiment includes a washing bracket 1 and a gear housing assembly 6. The gear housing assembly 6 is fixedly installed on one side of the washing bracket 1. A reduction transmission gear assembly 2 is rotatably arranged inside the gear housing assembly 6. A top cover 3 is provided on the top of the gear housing assembly 6. An active rack assembly 4 and a driven rack assembly 5 are arranged between the top cover 3 and the gear housing assembly 6. The reduction transmission gear assembly 2 is located between the active rack assembly 4 and the driven rack assembly 5 and is used for transmission support between the active rack assembly 4 and the driven rack assembly 5.

[0028] The driven rack assembly 5 includes a scraper 16 that extends to the outside of the gear housing assembly 6;

[0029] Among them, the washing bracket 1 is used to fix the gear housing assembly 6 and fix the whole device in the designated position of the printer frame. The specific installation position can be determined manually according to the actual running trajectory of the printer.

[0030] Among them, the reduction transmission gear assembly 2 can reduce the movement of the active rack assembly 4 and the driven rack assembly 5, ensuring that they move at a differential speed and that their movement speed is controllable. Through the movement of the driven rack assembly 5, the scraper 16 is driven to move synchronously, pushing the waste material extruded on one side, thus achieving the effect of placing and removing the waste material generated by the device.

[0031] The reduction transmission gear assembly 2 consists of a reduction transmission gear 7 and a rotating shaft 8. The reduction transmission gear 7 consists of an upper large tooth and a lower small tooth. The reduction transmission gear 7 has a rotating shaft 8 rotatably disposed inside the gear housing assembly 6 in the middle.

[0032] By using different specifications for the upper large teeth and the lower small teeth in the double-layer gear, different ratios of rotation are created, resulting in different speed ratios under these ratios, thus ensuring the effect of differential movement.

[0033] The active rack assembly 4 includes an active rack 15, a rotating shaft fixing pin 14, a stop block 13, a right torsion spring 12, a left torsion spring 11, and a return spring 10;

[0034] The active rack 15 is slidably disposed inside the gear housing assembly 6. The active rack 15 is meshed with the upper large tooth inside the upper cover 3. The return spring 10 is fixedly disposed at one end of the active rack 15. The rotating shaft fixing pin 14 is rotatably disposed inside one side of the active rack 15. The left torsion spring 11 and the right torsion spring 12 are both sleeved on the outside of the rotating shaft fixing pin 14. The rotating shaft fixing pin 14 passes through the stop block 13. The left torsion spring 11 and the right torsion spring 12 are simultaneously located inside the stop block 13.

[0035] The driven rack assembly 5 also includes a driven rack 17, which is meshed with the lower small teeth inside the upper cover 3, and the scraper 16 is fixedly disposed on one side of the upper surface of the driven rack 17.

[0036] The bottom of the gear housing assembly 6 is fixedly connected to a material collection trough 9, which is located below the scraper 16. Consumable residue 18 is placed on the material collection trough 9.

[0037] After fixing the left torsion spring 11 and the right torsion spring 12 inside the torsion spring groove in the stop block 13, fix them with the rotating shaft fixing pin 14, then press the stop block 13 onto the drive rack 15, and fix the return spring 10 to one end of the drive rack 15 and the other end to the inside of the gear housing assembly 6.

[0038] The scraper 16 is fixed to the driven rack 17 with screws to ensure that the scraper 16 and the driven rack 17 move synchronously.

[0039] The nozzle of the printer head will first stop at the receiving tray 9 to squeeze out the excess material. When the consumable residue 18 squeezed out by the printhead accumulates in the receiving tray 9, the printhead's impact block will strike the stop block 13 locked together with the drive rack. This impact block is an existing integrated printhead device, causing it to move to one end. At the same time as the stop block 13 moves, the reduction gear 7 will rotate. Through rotation, the driven rack 17, which is meshed together, will move in the opposite direction to the drive rack 15. In this way, under the action of the return spring 10, the consumable residue 18 accumulated on the receiving tray 9 will be ejected. If multiple cleaning is required, this step is repeated until the excess material is squeezed out.

[0040] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0041] 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 self-resetting 3D printing material washing mechanism, characterized in that: The assembly includes a washing bracket (1) and a gear housing assembly (6). The gear housing assembly (6) is fixedly installed on one side of the washing bracket (1). A reduction transmission gear assembly (2) is rotatably arranged inside the gear housing assembly (6). A top cover (3) is provided on the top of the gear housing assembly (6). An active rack assembly (4) and a driven rack assembly (5) are arranged between the top cover (3) and the gear housing assembly (6). The reduction transmission gear assembly (2) is located between the active rack assembly (4) and the driven rack assembly (5). The reduction transmission gear assembly (2) is used for the transmission support between the active rack assembly (4) and the driven rack assembly (5). The driven rack assembly (5) includes a scraper (16) that extends to the outside of the gear housing assembly (6).

2. The self-resetting 3D printing material washing mechanism according to claim 1, characterized in that: The reduction transmission gear assembly (2) consists of a reduction transmission gear (7) and a rotating shaft (8). The reduction transmission gear (7) consists of an upper large tooth and a lower small tooth. The rotating shaft (8) is rotatably disposed inside the gear housing assembly (6) in the middle of the reduction transmission gear (7).

3. The self-resetting 3D printing material washing mechanism according to claim 1, characterized in that: The active rack assembly (4) includes an active rack (15), a rotating shaft fixing pin (14), a stop block (13), a right torsion spring (12), a left torsion spring (11), and a return spring (10).

4. The self-resetting 3D printing material washing mechanism according to claim 3, characterized in that: The active rack (15) is slidably disposed inside the gear housing assembly (6). The active rack (15) meshes with the upper large tooth inside the upper cover (3). The return spring (10) is fixedly disposed at one end of the active rack (15). The rotating shaft fixing pin (14) is rotatably disposed inside one side of the active rack (15). The left torsion spring (11) and the right torsion spring (12) are both sleeved on the outside of the rotating shaft fixing pin (14). The rotating shaft fixing pin (14) passes through the stop block (13). The left torsion spring (11) and the right torsion spring (12) are simultaneously located inside the stop block (13).

5. The self-resetting 3D printing material washing mechanism according to claim 1, characterized in that: The driven rack assembly (5) also includes a driven rack (17), which is engaged with the lower inner teeth of the upper cover (3), and the scraper (16) is fixedly disposed on one side of the upper surface of the driven rack (17).

6. The self-resetting 3D printing material washing mechanism according to claim 5, characterized in that: The bottom of the gear housing assembly (6) is fixedly connected to a receiving groove (9), which is located below the scraper (16), and consumable residue (18) is placed on the receiving groove (9).

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