Discharging device for 3D printing of plastic products
By using a sawing structure for unloading in a 3D printer, the problem of PLA products adhering to the heated bed platform was solved, achieving safe unloading and a high yield rate in printing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-13
AI Technical Summary
In existing technologies, PLA products tend to adhere to the heated bed platform after 3D printing, which can damage the operator's hands and the printed products during unloading, thus reducing the product qualification rate.
The unloading process employs a sawing structure, where a saw blade reciprocates on a heated bed platform to cut off the supports of the printed product, thus achieving unloading and preventing damage to the product and operators.
It ensures the integrity of printed products, avoids operator injury, improves the pass rate of printed products, and reduces the difficulty of operation.
Smart Images
Figure CN223989769U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of 3D printing technology, specifically relating to an unloading device for 3D printing of plastic products. Background Technology
[0002] A 3D printer is a device that creates three-dimensional objects by stacking materials layer by layer. Based on digital model files, it constructs objects by layering materials, unlike traditional subtractive manufacturing, belonging to the "additive manufacturing" technology. 3D printing technology can be divided into three main steps: modeling, slicing, and printing. Modeling involves designing a 3D model using computer software or acquiring physical model data using a 3D scanner; slicing involves dividing the model file into multiple thin slices, generating instructions that the printer can recognize; printing involves the printer stacking materials layer by layer according to the sliced data, ultimately forming a complete object.
[0003] Among common 3D printing materials, plastics are the most frequently used and relatively inexpensive, such as PLA, ABS, PETG, TPU, and nylon. PLA, in particular, is widely used in 3D printing due to its environmental friendliness, biodegradability, low printing temperature, lack of irritating odor, smooth surface, and variety of colors. The first layer is especially crucial as it lays the foundation for subsequent layers. For successful printing, the first layer needs to adhere effectively to the heated bed platform. Because of PLA's low printing temperature, the printed product will adhere directly to the heated bed platform after printing, requiring operators to use a scraper to remove it. This can potentially injure the operator's hands, as well as the heated bed platform and the printed product itself, reducing the yield rate and increasing the cost of the printed product. Utility Model Content
[0004] To address the problems of injury to operators' hands, printed products, and heated bed platforms during unloading in existing technologies, this utility model provides an unloading device for 3D printing of plastic products. This device uses a sawing method for unloading, thus ensuring product integrity and preventing injury to operators' hands. The specific technical solution is as follows: An unloading device for 3D printing of plastic products includes: a base and a protective shell. The protective shell is installed on the upper wall of the base. A sawing structure is installed between the base and the protective shell. A handle structure is installed at the tail of the base, and a power structure is installed on the back of the handle structure. The sawing structure includes: three sets of sawing limit posts, three sawing limit baffles, a saw blade, and a sawing connecting post. The three sets of sawing limit posts are installed between the base and the protective shell. The saw blade is movably installed outside the three sets of sawing limit posts. The three sawing limit baffles are respectively installed outside the sawing limit posts and located on the upper wall of the saw blade. The upper wall of the sawing connecting post is installed on the upper wall of the saw blade.
[0005] Preferably, the handle structure includes: a power support plate and a grip handle; the power support plate is installed at the rear of the base, the grip handle is installed at the rear of the power support plate, and a clearance through hole is provided on the upper wall of the power support plate.
[0006] Preferably, the power structure includes: a power motor, a power frame, and a power connecting plate; the power motor is mounted on the lower wall of the power support plate via a motor frame, and the drive end of the power motor passes through a clearance through hole in the power support plate; the power frame is mounted on the drive end of the power motor; and the two ends of the power connecting plate are respectively movably mounted on the outside of the power frame and the saw-off connecting column.
[0007] Preferably, the front wall of the base is provided with a slanted shovel.
[0008] Preferably, two hand guards are mounted on the outside of the grip handle.
[0009] Preferably, the outer surface of the grip handle is covered with an anti-slip rubber layer.
[0010] Preferably, a power cord is installed at the tail of the grip handle.
[0011] The present invention provides a material unloading device for 3D printing of plastic products, which, compared with the prior art, has the following advantages:
[0012] 1. The unloading device for 3D printing of plastic products unloads the printed product attached to the heated bed platform by using a reciprocating sawing structure. By strictly following the usage steps for printing and unloading, it can ensure that the printed product will not be damaged during the unloading process and can avoid injury to the operator's hands. This reduces the difficulty of operation for the operator to a certain extent and improves the pass rate of printed products. Attached Figure Description
[0013] Figure 1 A schematic diagram of the first overall structure of the unloading device for 3D printing of plastic products provided by this utility model;
[0014] Figure 2 A schematic diagram of the second overall structure of the unloading device for 3D printing of plastic products provided by this utility model;
[0015] Figure 3 A schematic diagram of the internal structure of the unloading device for 3D printing of plastic products provided by this utility model;
[0016] Figure 4 An exploded view of the internal structure of the unloading device for 3D printing of plastic products provided by this utility model;
[0017] in, Figures 1 to 4 The unloading device for 3D printing plastic products, as shown in the attached diagram, consists of: 1. Base; 2. Protective shell; 3. Saw-cutting limit post; 4. Saw-cutting limit baffle; 5. Saw blade; 6. Saw-cutting connecting post; 7. Power support plate; 8. Handle; 9. Power motor; 10. Power frame; 11. Power connection plate; 12. Slanted shovel; 13. Hand guard; 14. Anti-slip rubber layer; 15. Power cord. Detailed Implementation
[0018] The following are specific implementation cases and appendices. Figures 1-4 The present invention will be further described below, but it is not limited to these embodiments. The present invention provides a technical solution: a material unloading device for 3D printing of plastic products, comprising: a base 1 and a protective shell 2, the protective shell 2 being installed on the upper wall of the base 1, a sawing structure being installed between the base 1 and the protective shell 2, a handle structure being installed at the tail of the base 1, and a power structure being installed on the back of the handle structure; the sawing structure comprises: three sets of sawing limiting posts 3, three sawing limiting baffles 4, a saw blade 5, and a sawing connecting post 6; the three sets of sawing limiting posts 3 are installed between the base 1 and the protective shell 2, the saw blade 5 is movably installed outside the three sets of sawing limiting posts 3, the three sawing limiting baffles 4 are respectively installed outside the sawing limiting posts 3, and the three sawing limiting baffles 4 are respectively located on the upper wall of the saw blade 5, and the upper wall of the sawing connecting post 6 is installed on the upper wall of the saw blade 5.
[0019] As a preferred embodiment, the handle structure further includes: a power support plate 7 and a grip handle 8; the power support plate 7 is installed at the rear of the base 1, the grip handle 8 is installed at the rear of the power support plate 7, and a clearance through hole is provided on the upper wall of the power support plate 7.
[0020] As a preferred embodiment, the power structure further includes: a power motor 9, a power frame 10, and a power connecting plate 11; the power motor 9 is mounted on the lower wall of the power support plate 7 via the motor frame, and the drive end of the power motor 9 passes through the clearance through hole of the power support plate 7; the power frame 10 is mounted on the drive end of the power motor 9; and the two ends of the power connecting plate 11 are respectively movably mounted on the outside of the power frame 10 and the saw-off connecting column 6.
[0021] As a preferred option, the front wall of the base 1 is provided with a slanted shovel 12.
[0022] As a preferred option, two hand guards 13 are further installed on the outside of the grip handle 8.
[0023] As a preferred option, the grip handle 8 is further provided with an anti-slip rubber layer 14.
[0024] As a preferred option, a power cord 15 is further installed at the tail of the grip handle 8.
[0025] Working principle:
[0026] I. Preparations before use: When using this utility model, the operator should first introduce an external AC power supply into this utility model through the power cord 15 to provide energy for the operation of the power motor 9 in this utility model, and connect the controller that matches the power motor 9 into this utility model to provide control logic for the operation of the power motor 9.
[0027] II. Mechanism Principle and Correct Use: The operator holds the handle 8 with one hand. The operator then starts the power motor 9 via the controller. The drive end of the power motor 9 rotates, causing the power frame 10 to rotate in a circular motion. Simultaneously, one end of the power connecting plate 11 rotates with the power frame 10, while the other end of the power connecting plate 11 acts as a power source, driving the saw blade 5 in a reciprocating linear motion. For every one rotation of the power frame 10, the saw blade 5 completes one reciprocating motion. The saw blade 5 has an open slot, which is restricted by three sets of sawing limit posts 3 and three sawing limit baffles 4. Therefore, five of the six degrees of freedom of the saw blade 5 are restricted, meaning the saw blade 5 can only... The saw blade 5 moves linearly along the X-axis and reciprocates. Once the printer finishes printing, the operator removes the heated bed platform and the printed product from it. The operator places the base 1 and the slanted shovel 12 on the upper wall of the heated bed platform and pushes them forward using the handle 8 to the connection point between the printed product and the heated bed platform. As the blade continues to push forward, it cuts the support base of the printed product, thus removing the product without damaging it or the heated bed platform. It should be noted that when designing the initial slicing of the printed product, sufficient support material should be reserved for cutting to avoid damaging the printed product.
[0028] III. Post-use maintenance and the function of some optimized parts: After use, the debris inside the base 1 and the protective shell 2 needs to be cleaned by air blowing. In order to increase the friction between the grip handle 8 and the hand, the grip handle 8 is equipped with an anti-slip rubber layer 14. In order to prevent the power frame 10 from damaging the hand, an isolation hand guard 13 is provided.
[0029] In the description of this utility model, the term "multiple" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A plastic product 3D printing unloading device, comprising: a base (1) and a protective shell (2), the protective shell (2) is installed on the upper wall surface of the base (1), characterized in that, A sawing structure is mounted between the base (1) and the protective shell (2), a handle structure is mounted at the tail of the base (1), and a power structure is mounted on the back of the handle structure; the sawing structure comprises three groups of sawing limiting columns (3), three sawing limiting baffles (4), a saw blade (5) and a sawing connecting column (6); the three groups of sawing limiting columns (3) are mounted between the base (1) and the protective shell (2), the saw blade (5) is movably mounted outside the three groups of sawing limiting columns (3), the three sawing limiting baffles (4) are respectively mounted outside the sawing limiting columns (3), and the three sawing limiting baffles (4) are respectively located on the upper wall surface of the saw blade (5), and the upper wall surface of the sawing connecting column (6) is mounted on the upper wall surface of the saw blade (5).
2. The plastic article 3D printing unloading device according to claim 1, characterized in that, The handle structure comprises a power support plate (7) and a holding handle (8); the power support plate (7) is mounted at the tail of the base (1), the holding handle (8) is mounted at the tail of the power support plate (7), and the upper wall surface of the power support plate (7) is provided with a letting go through hole.
3. The plastic article 3D printing unloading device according to claim 1, characterized in that, The power structure comprises a power motor (9), a power frame (10) and a power connecting plate (11); the power motor (9) is mounted on the lower wall surface of the power support plate (7) through a motor frame, and the driving end of the power motor (9) penetrates through the letting go through hole of the power support plate (7), the power frame (10) is mounted on the driving end of the power motor (9), and the two ends of the power connecting plate (11) are movably mounted outside the power frame (10) and the sawing connecting column (6) respectively.
4. The plastic article 3D printing unloading device according to claim 1, characterized in that, The front wall surface of the base (1) is provided with a slope shovel (12).
5. The plastic product 3D printing unloading device according to claim 2, characterized in that, Two hand guards (13) are mounted outside the holding handle (8).
6. The plastic product 3D printing unloading device according to claim 2, characterized in that, An anti-skid rubber layer (14) is mounted outside the holding handle (8).
7. The plastic product 3D printing unloading device according to claim 2, characterized in that, A power line (15) is mounted at the tail of the holding handle (8). An anti-skid rubber layer (14) is mounted outside the holding handle (8). A power line (15) is mounted at the tail of the holding handle (8).