Scraping device of 3D printer equipment
By designing a scraping device for 3D printers, a motor-driven reciprocating screw is used to automatically clean up waste materials, solving the problem of low cleaning efficiency in existing technologies and achieving highly efficient automated cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PENGZHOU XIANLIN 3D TECH CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-21
AI Technical Summary
Existing 3D printing equipment is inefficient at cleaning up debris, requiring manual cleaning, which is time-consuming and labor-intensive.
Design a scraping device for a 3D printer, including a base, frame, drive unit, transmission unit, sliding unit, and cleaning unit. The scraper is driven by a motor to move back and forth on the base via a reciprocating screw, automatically cleaning up waste and collecting it into a storage box.
It achieves automated waste removal, improves cleaning efficiency, simplifies operation, reduces manual intervention, and enhances cleaning effectiveness.
Smart Images

Figure CN224145364U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of 3D printing technology, specifically to a scraping device for a 3D printer. Background Technology
[0002] 3D printing equipment is a machine used in cumulative manufacturing technology, also known as rapid prototyping technology. It creates three-dimensional objects by printing layers of adhesive materials, such as special waxes, powdered metals, or plastics, based on digital model files.
[0003] After printing, the finished product needs to be cut off from the 3D printing machine, leaving behind debris. This requires cleaning after each printing before the next printing can begin. However, current cleaning methods rely on manual cleaning, which is time-consuming, labor-intensive, and inefficient. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a scraping device for 3D printer equipment to solve the problem of low efficiency in cleaning up waste in existing 3D printing equipment.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A scraping device for a 3D printer includes:
[0007] Base;
[0008] The frame, which is fixedly mounted on the upper part of the base; and
[0009] The cleaning mechanism includes a drive unit fixedly installed on one side of the frame, a transmission unit and a sliding unit installed between two opposing inner walls of the frame, and a cleaning unit connected between the transmission unit and the sliding unit. The transmission unit is rotatably connected to the two opposing inner walls of the frame. The power input end of the transmission unit freely passes through the frame and is connected to the power output end of the drive unit. The cleaning unit is movably connected to the transmission unit and slidably connected to the sliding unit. The cleaning unit is slidably attached to the upper part of the base.
[0010] The drive unit drives the cleaning unit to reciprocate along the upper part of the base via the transmission unit.
[0011] Compared with the prior art, this utility model has the following advantages: When in use, after the 3D printer finishes printing and removes the finished product, the start-up drive unit drives the cleaning unit to reciprocate on the upper part of the base through the transmission unit, so that the cleaning unit cleans the waste on the base. The operation is simple and convenient, and the waste can be cleaned quickly. Moreover, the sliding part can ensure the stability of the sliding of the cleaning unit, which improves the cleaning efficiency.
[0012] Preferably, the transmission unit includes a reciprocating lead screw rotatably mounted between two opposing inner walls of the frame, the cleaning unit is slidably connected to the helical groove of the reciprocating lead screw via a connector, and one end of the reciprocating lead screw freely passes through the frame and is connected to the power output end of the drive unit.
[0013] Preferably, the cleaning part includes a scraper that slides and fits against the upper part of the base. One end of the scraper has a sliding hole and the other end has a through hole. The sliding hole is slidably fitted on the sliding part, and the through hole is slidably fitted on the reciprocating lead screw. The connecting member is provided on the inner wall of the through hole.
[0014] Preferably, the connector includes a slider that is rotatably connected to the inner wall of the perforation via a rotating shaft, and the slider is slidably connected to the helical groove of the reciprocating lead screw.
[0015] Preferably, the sliding part includes a sliding rod fixedly installed between two opposing inner walls of the frame, and the sliding hole is slidably sleeved on the sliding rod.
[0016] Preferably, the drive unit includes a motor fixedly mounted on the side wall of the frame, and the power output shaft of the motor is coaxially and fixedly connected to one end of the reciprocating lead screw that extends out of the frame.
[0017] Preferably, a mounting groove is provided on one side of the base, and two feeding channels communicating with the mounting groove are provided on the upper part of the base at opposite angles. A storage box is slidably installed between the inner and outer sides of the mounting groove. A hand-holding groove is provided on the side wall of the storage box away from the mounting groove. The two feeding channels are respectively located on both sides of the base and on the sliding trajectory of the scraper.
[0018] Preferably, the width of the side of the scraper that slides into contact with the base is greater than the width of the other side.
[0019] Preferably, the slider is an arc-shaped strip structure.
[0020] Preferably, it also includes a printing assembly disposed within the rack, the printing assembly being located directly above the base.
[0021] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention.
[0023] Figure 2 for Figure 1 A sectional view.
[0024] Figure 3 for Figure 1A cross-sectional view of the base.
[0025] Figure 4 for Figure 1 Front view of the middle scraper.
[0026] Figure 5 for Figure 4 A magnified view of part I.
[0027] Figure 6 for Figure 5 Top view of the middle slider.
[0028] The numbers in the diagram are as follows: 1. Base; 11. Feeding channel; 12. Mounting slot; 2. Frame; 3. Printing component; 4. Scraper; 41. Sliding hole; 42. Through hole; 43. Slider; 44. Rotating shaft; 5. Sliding rod; 6. Reciprocating lead screw; 61. Motor; 7. Storage box; 71. Hand lock slot. Detailed Implementation
[0029] To make the technical means, creative features, achieved objectives and functions of this utility model clearer and easier to understand, the utility model will be further described below with reference to the accompanying drawings and specific embodiments:
[0030] like Figure 1-2 As shown, an embodiment of this utility model provides a scraping device for a 3D printer, including: a base 1; a frame 2, which is fixedly installed on the upper part of the base 1; and a cleaning mechanism, which includes a drive unit fixedly installed on one side of the frame 2, a transmission unit and a sliding unit installed between two opposing inner walls of the frame 2, and a cleaning unit connected between the transmission unit and the sliding unit. The transmission unit is rotatably connected to the two opposing inner walls of the frame 2. The power input end of the transmission unit freely passes through the frame 2 and is connected to the power output end of the drive unit. The cleaning unit is movably connected to the transmission unit and slidably connected to the sliding unit. The cleaning unit is slidably attached to the upper part of the base 1. The drive unit drives the cleaning unit to reciprocate along the upper part of the base 1 through the transmission unit.
[0031] After the 3D printer finishes printing and is removed, the start-up drive unit drives the cleaning unit to reciprocate on the upper part of the base 1 through the transmission unit, so that the cleaning unit cleans the waste on the base 1. The operation is simple and convenient, and the waste can be cleaned quickly. Moreover, the sliding part can ensure the stability of the cleaning unit's sliding, which improves the cleaning efficiency.
[0032] like Figure 1-2 as well as Figure 4-6As shown, according to another embodiment of the present invention, the scraping device of the 3D printer equipment further optimizes its transmission part, cleaning part, sliding part and driving part. The transmission part includes a reciprocating screw 6 rotatably installed between two opposing inner walls of the frame 2. The cleaning part is slidably connected to the spiral groove of the reciprocating screw 6 through a connector. One end of the reciprocating screw 6 freely passes through the frame 2 and is connected to the power output end of the driving part.
[0033] The cleaning unit includes a scraper 4 that slides and fits against the upper part of the base 1. One end of the scraper 4 has a sliding hole 41, and the other end has a through hole 42. The sliding hole 41 is slidably fitted onto the sliding unit, and the through hole 42 is slidably fitted onto the reciprocating lead screw 6. A connecting member is disposed on the inner wall of the through hole 42. The connecting member includes a slider 43 that is rotatably connected to the inner wall of the through hole 42 via a rotating shaft 44. The slider 43 is slidably connected to the helical groove of the reciprocating lead screw 6. Preferably, the slider 43 has an arc-shaped structure, allowing it to better slide and fit against the helical groove of the reciprocating lead screw 6, ensuring the stability of the slider 43 sliding within the helical groove of the reciprocating lead screw 6. Furthermore, the length of the slider 43 is greater than the width of the helical groove of the reciprocating lead screw 6, preventing the slider 43 from getting stuck at the intersection of the helical grooves. Also, the width of the side of the scraper 4 that slides and fits against the base 1 is greater than the width of the other side, resulting in a better cleaning effect for the scraper 4.
[0034] The sliding part includes a sliding rod 5 fixedly installed between two opposing inner walls of the frame 2, and the sliding hole 41 is slidably sleeved on the sliding rod 5.
[0035] The drive unit includes a motor 61 fixedly mounted on the side wall of the frame 2. The power output shaft of the motor 61 is coaxially and fixedly connected to one end of the reciprocating lead screw 6 that extends out of the frame 2.
[0036] Motor 61 drives reciprocating screw 6 to rotate, causing slider 43 to slide back and forth along the spiral groove of reciprocating screw 6, thereby driving scraper 4 to reciprocate synchronously.
[0037] like Figure 1-3 As shown, according to another embodiment of the present invention, the scraping device of the 3D printer equipment preferably has an installation groove 12 on one side of the base 1, and two feeding channels 11 connected to the installation groove 12 are inclined at opposite sides on the upper part of the base 1. A storage box 7 is slidably installed between the inner and outer sides of the installation groove 12. A handle groove 71 is provided on the side wall of the storage box 7 away from the installation groove 12. The two feeding channels 11 are respectively arranged on both sides of the base 1 and located on the sliding trajectory of the scraper 4. This allows the waste material on the upper part of the base 1 to be pushed into the two feeding channels 11 during the reciprocating motion of the scraper 4, so that the waste material falls into the storage box 7 for collection. After the collection is full, the storage box 7 can be pulled out through the handle groove 71 for cleaning.
[0038] like Figure 1 As shown, according to another embodiment of the present invention, the scraping device of the 3D printer equipment further includes a printing component 3 disposed in the frame 2, the printing component 3 being located directly above the base 1; the operating principle and specific structure of the printing component 3 are existing technologies and will not be described in detail here.
[0039] The working principle of this utility model is as follows: When this utility model is used, after the 3D printer finishes printing, the motor 61 is started to drive the reciprocating lead screw 6 to rotate, so that the slider 43 slides along the spiral groove of the reciprocating lead screw 6, thereby driving the scraper 4 to reciprocate on the upper part of the base 1 and slide relative to the sliding rod 5, so that the scraper 4 scrapes the waste on the upper part of the base 1 into the two discharge channels 11, so that it is collected in the collection box 7. After it is full, the collection box 7 can be pulled out through the handle groove 71 to empty it.
[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A scraping device for a 3D printer, characterized in that, include: Base (1); The frame (2) is fixedly installed on the upper part of the base (1); as well as The cleaning mechanism includes a drive unit fixedly installed on one side of the frame (2), a transmission unit and a sliding unit installed between two opposing inner walls of the frame (2), and a cleaning unit connected between the transmission unit and the sliding unit. The transmission unit is rotatably connected to the two opposing inner walls of the frame (2). The power input end of the transmission unit freely passes through the frame (2) and is connected to the power output end of the drive unit. The cleaning unit is movably connected to the transmission unit and slidably connected to the sliding unit. The cleaning unit is slidably attached to the upper part of the base (1). The drive unit drives the cleaning unit to reciprocate along the upper part of the base (1) through the transmission unit.
2. The device according to claim 1, wherein, The transmission unit includes a reciprocating screw (6) rotatably mounted between two opposing inner walls of the frame (2). The cleaning unit is slidably connected to the spiral groove of the reciprocating screw (6) through a connector. One end of the reciprocating screw (6) freely passes through the frame (2) and is connected to the power output end of the drive unit.
3. The device according to claim 2, wherein, The cleaning part includes a scraper (4) that slides and fits against the upper part of the base (1). One end of the scraper (4) has a sliding hole (41) and the other end has a through hole (42). The sliding hole (41) is slidably fitted on the sliding part, and the through hole (42) is slidably fitted on the reciprocating lead screw (6). The connecting piece is set on the inner wall of the through hole (42).
4. The device according to claim 3, wherein, The connector includes a slider (43) that is rotatably connected to the inner wall of the perforation (42) via a rotating shaft (44), and the slider (43) is slidably connected to the helical groove of the reciprocating lead screw (6).
5. The device according to claim 3, wherein, The sliding part includes a sliding rod (5) fixedly installed between two opposing inner walls of the frame (2), and the sliding hole (41) is slidably sleeved on the sliding rod (5).
6. The device according to claim 2, wherein, The drive unit includes a motor (61) fixedly mounted on the side wall of the frame (2), and the power output shaft of the motor (61) is coaxially and fixedly connected to one end of the reciprocating screw (6) that passes through the frame (2).
7. The device according to claim 3, wherein, The base (1) has an installation groove (12) on one side. The upper part of the base (1) has two feeding channels (11) that are inclined towards each other and communicate with the installation groove (12). A storage box (7) is slidably installed between the inner and outer sides of the installation groove (12). A hand buckle groove (71) is provided on the side wall of the storage box (7) away from the installation groove (12). The two feeding channels (11) are respectively set on both sides of the base (1) and located on the sliding track of the scraper (4).
8. The device according to claim 3, wherein, The width of the scraper (4) that slides against the base (1) is greater than the width of the other side.
9. The scraping device for a 3D printer according to claim 4, characterized in that, The slider (43) has an arc-shaped strip structure.
10. The device according to claim 1, wherein, It also includes a printing assembly (3) disposed within the frame (2), the printing assembly (3) being located directly above the base (1).