A 3D printer limiting buffer structure
By designing a limiting and buffering structure in the 3D printer, using limiting blocks and buffering mechanisms to prevent equipment collisions, the mechanical damage and noise problems caused by the rapid movement of the linear motor are solved, improving the reliability and printing accuracy of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO YINGLONG UNITED INTELLIGENT MFG EQUIP
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-30
AI Technical Summary
When existing 3D printers move rapidly due to the linear motor, collisions between parts cause mechanical damage and wear, affecting printing accuracy and structural stability, generating noise and posing health hazards.
The design includes a limiting and buffering structure, which uses a limiting block to prevent excessive displacement and impact, and uses a buffer spring and rubber seat to reduce impact force, thus preventing equipment damage and structural loosening.
It improves the reliability and stability of 3D printers, reduces equipment damage and noise, and enhances printing accuracy and operational safety.
Smart Images
Figure CN224426516U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of 3D printing technology, and in particular to a limiting buffer structure for a 3D printer. Background Technology
[0002] A 3D printer is a device that can create three-dimensional objects by layering materials. It is often referred to as an additive manufacturing device. Unlike traditional subtractive manufacturing methods (such as cutting and carving), 3D printing builds objects by adding materials.
[0003] Existing 3D printers move rapidly using linear motors during operation. When the printer reaches its limit position, parts collide directly. The impact force generated by the collision may damage or deform mechanical parts. Frequent collisions may also cause rapid wear of parts, reducing the lifespan of the printer. At the same time, the vibration generated by frequent collisions may cause printing errors, affecting printing accuracy and surface quality. In addition, frequent mechanical collisions may affect the stability of circuit connections and the tightness of the device structure, reducing the stability of the device structure. The noise from the collisions can also affect the on-site operators and harm their hearing health. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a 3D printer limiting buffer structure.
[0005] This utility model is achieved using the following technical solution: a 3D printer limiting and buffering structure, including an operating table, a printing table slide rail fixedly connected to the inner wall of the operating table, a first linear motor slidably connected to the surface of the printing table slide rail, a printing table fixedly connected to the top of the first linear motor, a first proximity switch fixedly connected to the inner wall of the operating table, a lifting frame fixedly connected to the surface of the operating table, a lifting slide rail fixedly connected to the inner wall of the lifting frame, a driven slider slidably connected to the surface of the lifting slide rail, a second linear motor slidably connected to the surface of the lifting slide rail, a mounting plate fixedly connected to the surface of the second linear motor, a translation slide rail fixedly connected to the surface of the mounting plate, a third linear motor slidably connected to the surface of the translation slide rail, a printing device fixedly connected to the surface of the third linear motor, a second proximity switch fixedly connected to the inner wall of the lifting frame, a third proximity switch fixedly connected to the inner wall of the mounting plate, a limiting mechanism provided on the inner wall of the operating table, and a buffer mechanism provided on the inner wall of the operating table.
[0006] The limiting mechanism includes a printing table limiting block, an anti-collision limiting block fixedly connected to the inner wall of the lifting frame, a top limiting block fixedly connected to the inner wall of the lifting frame, and a translation limiting block fixedly connected to the surface of the driven slider.
[0007] As a further improvement to the above solution, two of each of the printing table limiting block, anti-collision limiting block, top limiting block, and translation limiting block are provided, symmetrically distributed at both ends of the motor slide rail. The translation limiting block is fixedly connected to the surface of the driven slider and the mounting plate, respectively.
[0008] The above technical solution uses printing table limiting blocks on both sides of the printing table slide rail, anti-collision limiting blocks on the inner walls of the two lifting frames, top limiting blocks on the inner walls of the two lifting frames, and translation limiting blocks on both sides of the translation slide rail to prevent the printing device from excessively displacing and colliding with the printing table or other objects during track movement, thereby preventing equipment damage or printing failure and improving device reliability.
[0009] As a further improvement to the above solution, the surface of the printing table limiting block is fixedly connected to the inner wall of the operating table.
[0010] As a further improvement to the above solution, the buffer mechanism includes a printing table slide rod, a first buffer spring fixedly connected to the inner wall of the operating table, a first buffer ring slidably connected to the surface of the printing table slide rod, a sliding seat slidably connected to the surface of the printing table slide rod, a spring lifting rod fixedly connected to the inner wall of the lifting frame, a first rubber seat fixedly connected to the output end of the spring lifting rod, a translation slide rod fixedly connected to the inner wall of the driven slider, a damping ring fixedly connected to the surface of the third linear motor, a second buffer spring fixedly connected to the surface of the driven slider, a second buffer ring slidably connected to the surface of the translation slide rod, and a second rubber seat fixedly connected to the inner wall of the lifting frame.
[0011] As a further improvement to the above solution, the surface of the printing table slide rod is fixedly connected to the inner wall of the operating table, the end of the first buffer spring away from the operating table is fixedly connected to the surface of the first buffer ring, the top of the sliding seat is fixedly connected to the top of the printing table, and the surface of the translation slide rod is slidably connected to the inner wall of the third linear motor.
[0012] As a further improvement to the above solution, two of each of the spring lifting rod, the first rubber seat, the damping ring, the second buffer spring, the second buffer ring, and the second rubber seat are provided, and they are evenly distributed at both ends of the motor slide rail.
[0013] As a further improvement to the above solution, the two second buffer springs are respectively fixedly connected to the surfaces of the mounting plate and the driven slider.
[0014] Through the above technical solution, the sliding seat slides on the surface of the printing table slide bar. When it moves to both ends of the printing table slide bar, the sliding seat touches the first buffer ring, compresses the first buffer spring, reduces the impact force of the sliding seat, and prevents the first linear motor from directly hitting the printing table limit block. When the second linear motor and the driven slider descend, they contact the first rubber seat, compress the spring lifting rod, and reduce the descent speed. At the same time, when the driven slider and the second linear motor rise, they hit the second rubber seat for buffering, preventing direct impact with the top limit block. This prevents the device structure from becoming loose due to direct impact with the limit block, which could cause device malfunction. When the third linear motor moves, the damping ring on its surface hits the second buffer ring that slides on the surface of the translation slide bar, compresses the second buffer spring, and reduces the moving speed of the third linear motor, preventing excessive impact force from affecting the stability of the device and improving the practicality of the device.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This utility model, by setting a limiting mechanism, specifically by setting printing table limiting blocks on both sides of the printing table slide rail, anti-collision limiting blocks on the inner walls of the two lifting frames, top limiting blocks on the inner walls of the two lifting frames, and translation limiting blocks on both sides of the translation slide rail, prevents the printing device from excessively displacing and colliding with the printing table or other objects during the movement of the track, thereby causing equipment damage or printing failure and improving the reliability of the device.
[0017] This invention employs a buffer mechanism. Specifically, a sliding seat slides on the surface of the printing table slide bar. When it moves to both ends of the printing table slide bar, the sliding seat contacts the first buffer ring, compressing the first buffer spring and reducing the impact force of the sliding seat. This prevents the first linear motor from directly impacting the printing table limit block. As the second linear motor and the driven slider descend, they contact the first rubber seat, compressing the spring lifting rod and slowing the descent speed. Simultaneously, the driven slider and the second linear motor impact the second rubber seat during their ascent, providing buffering and preventing direct impact on the top limit block. This prevents the device structure from loosening due to direct impact on the limit block, thus preventing device malfunction. When the third linear motor moves, the damping ring on its surface impacts the second buffer ring sliding on the surface of the translation slide bar, compressing the second buffer spring and slowing the movement speed of the third linear motor. This prevents excessive impact force from affecting the stability of the device and improves its practicality. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a side view of the structure of this utility model;
[0020] Figure 3 This is a top view of the structure of this utility model;
[0021] Figure 4This is a schematic diagram of the structure of this utility model from below;
[0022] Figure 5 This is a cross-sectional structural diagram of the present invention.
[0023] Explanation of key symbols:
[0024] 1. Operating table; 2. Printing table slide rail; 3. First linear motor; 4. Printing table; 5. First proximity switch; 6. Lifting frame; 7. Lifting slide rail; 8. Driven slider; 9. Second linear motor; 10. Mounting plate; 11. Translation slide rail; 12. Third linear motor; 13. Support plate; 14. Printing device; 15. Second proximity switch; 16. Third proximity switch; 17. Limiting mechanism; 1701. Printing table limiting block; 1702. Anti-locking mechanism. 1703. Impact limiting block; 1704. Top limiting block; 1705. Translation limiting block; 18. Buffer mechanism; 1806. Printing table slide rod; 1807. First buffer spring; 1808. First buffer ring; 1809. Sliding seat; 18000. Spring lifting rod; 1801. First rubber seat; 1802. Translation slide rod; 1803. Damping ring; 1804. Second buffer spring; 1815. Second buffer ring; 1816. Second rubber seat. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0026] Example:
[0027] Please combine Figure 1-5 This embodiment of a 3D printer limiting and buffering structure includes an operating table 1, a printing table slide rail 2 fixedly connected to the inner wall of the operating table 1, a first linear motor 3 slidably connected to the surface of the printing table slide rail 2, a printing table 4 fixedly connected to the top of the first linear motor 3, a first proximity switch 5 fixedly connected to the inner wall of the operating table 1, a lifting frame 6 fixedly connected to the surface of the operating table 1, a lifting slide rail 7 fixedly connected to the inner wall of the lifting frame 6, a driven slider 8 slidably connected to the surface of the lifting slide rail 7, a second linear motor 9 slidably connected to the surface of the lifting slide rail 7, a mounting plate 10 fixedly connected to the surface of the second linear motor 9, a translation slide rail 11 fixedly connected to the surface of the mounting plate 10, a third linear motor 12 slidably connected to the surface of the translation slide rail 11, a printing device 14 fixedly connected to the surface of the third linear motor 12, a second proximity switch 15 fixedly connected to the inner wall of the lifting frame 6, a third proximity switch 16 fixedly connected to the inner wall of the mounting plate 10, a limiting mechanism 17 provided on the inner wall of the operating table 1, and a buffering mechanism 18 provided on the inner wall of the operating table 1.
[0028] The limiting mechanism 17 includes a printing table limiting block 1701, an anti-collision limiting block 1702 fixedly connected to the inner wall of the lifting frame 6, a top limiting block 1703 fixedly connected to the inner wall of the lifting frame 6, and a translation limiting block 1704 fixedly connected to the surface of the driven slider 8.
[0029] Two of each of the following are provided: print table limit block 1701, anti-collision limit block 1702, top limit block 1703, and translation limit block 1704. They are symmetrically distributed at both ends of the motor slide rail. The translation limit block 1704 is fixedly connected to the surface of the driven slider 8 and the mounting plate 10, respectively. The print table limit block 1701 is set on both sides of the print table slide rail 2, the anti-collision limit block 1702 is set on the inner wall of the two lifting frames 6, the top limit block 1703 is set on the inner wall of the two lifting frames 6, and the translation limit block 1704 is set on both sides of the translation slide rail 11. This prevents the printing device from excessively displacing and colliding with the print table or other objects during the movement of the track, which could cause equipment damage or printing failure, thereby improving the reliability of the device.
[0030] The surface of the printing table limit block 1701 is fixedly connected to the inner wall of the operating table 1.
[0031] The buffer mechanism 18 includes a printing table slide rod 1801, a first buffer spring 1802 fixedly connected to the inner wall of the operating table 1, a first buffer ring 1803 slidably connected to the surface of the printing table slide rod 1801, a sliding seat 1804 slidably connected to the surface of the printing table slide rod 1801, a spring lifting rod 1805 fixedly connected to the inner wall of the lifting frame 6, a first rubber seat 1806 fixedly connected to the output end of the spring lifting rod 1805, a translation slide rod 1807 fixedly connected to the inner wall of the driven slider 8, a damping ring 1808 fixedly connected to the surface of the third linear motor 12, a second buffer spring 1809 fixedly connected to the surface of the driven slider 8, a second buffer ring 1810 slidably connected to the surface of the translation slide rod 1807, and a second rubber seat 1811 fixedly connected to the inner wall of the lifting frame 6.
[0032] The surface of the printing table slide bar 1801 is fixedly connected to the inner wall of the operating table 1, the end of the first buffer spring 1802 away from the operating table 1 is fixedly connected to the surface of the first buffer ring 1803, the top of the sliding seat 1804 is fixedly connected to the top of the printing table 4, and the surface of the translation slide bar 1807 is slidably connected to the inner wall of the third linear motor 12.
[0033] Two of each of the spring lifting rod 1805, the first rubber seat 1806, the damping ring 1808, the second buffer spring 1809, the second buffer ring 1810, and the second rubber seat 1811 are provided, evenly distributed at both ends of the motor slide rail.
[0034] Two second buffer springs 1809 are fixedly connected to the surfaces of the mounting plate 10 and the driven slider 8, respectively. They slide on the surface of the print table slide bar 1801 via the sliding seat 1804. When they move to both ends of the print table slide bar 1801, the sliding seat 1804 contacts the first buffer ring 1803, compressing the first buffer spring 1802 and reducing the impact force of the sliding seat 1804, preventing the first linear motor 3 from directly impacting the print table limit block 1701. When the second linear motor 9 and the driven slider 8 descend, they contact the first rubber seat 1806, compressing the spring lifting rod 180. 5. To slow down the descent speed, the driven slider 8 and the second linear motor 9 collide with the second rubber seat 1811 during the ascent to buffer the impact and prevent direct impact with the top limit block 1703. This prevents the device structure from becoming loose due to direct impact with the limit block, which could cause device malfunction. When the third linear motor 12 moves, the damping ring 1808 on its surface impacts the second buffer ring 1810 sliding on the surface of the translation slide rod 1807, squeezing the second buffer spring 1809 and slowing down the movement speed of the third linear motor 12. This prevents excessive impact force from affecting the stability of the device and improves its practicality.
[0035] The implementation principle of the 3D printer limiting and buffer structure in this embodiment is as follows: During use, the material is connected to the printing device 14. The first linear motor 3 is started, driving the printing table 4 to slide on the printing table slide rail 2. Simultaneously, the second linear motor 9 is started, driving the driven slider 8 to rise and fall synchronously on the lifting slide rail 7, changing the height of the printing device 14. The third linear motor 12 is started, driving the printing device 14 to move horizontally on the translation slide rail 11. Printing table limiting blocks 1701 are set on both sides of the printing table slide rail 2, anti-collision limiting blocks 1702 are set on the inner walls of the two lifting frames 6, top limiting blocks 1703 are set on the inner walls of the two lifting frames 6, and translation limiting blocks 1704 are set on both sides of the translation slide rail 11. This prevents the printing device from excessively displacing and colliding with the printing table or other objects during track movement, causing equipment damage or printing failure, thus improving device reliability. Simultaneously, the sliding seat 1804 slides on the surface of the printing table slide rod 1801. When it moves to both ends of the printing table slide rod 1801... When the sliding seat 1804 touches the first buffer ring 1803, it compresses the first buffer spring 1802, reducing the impact force of the sliding seat 1804 and preventing the first linear motor 3 from directly impacting the print table limit block 1701. When the second linear motor 9 and the driven slider 8 descend, they contact the first rubber seat 1806, compressing the spring lifting rod 1805 and slowing down the descent speed. At the same time, when the driven slider 8 and the second linear motor 9 rise, they impact the second rubber seat 1811 for buffering, preventing direct impact on the top limit block 1703 and preventing the device structure from becoming loose due to direct impact on the limit block, causing device failure. When the third linear motor 12 moves, the damping ring 1808 on its surface impacts the second buffer ring 1810 sliding on the surface of the translation slide rod 1807, compressing the second buffer spring 1809 and slowing down the moving speed of the third linear motor 12, preventing excessive impact force from affecting the stability of the device, improving the practicality of the device, and ensuring the stability of the device structure when the printing device 14 is printing on the top of the print table 4.
[0036] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A 3D printer limiting and buffering structure, characterized in that, The system includes an operating table (1), a printing table slide rail (2) fixedly connected to the inner wall of the operating table (1), a first linear motor (3) slidably connected to the surface of the printing table slide rail (2), a printing table (4) fixedly connected to the top of the first linear motor (3), a first proximity switch (5) fixedly connected to the inner wall of the operating table (1), a lifting frame (6) fixedly connected to the surface of the operating table (1), a lifting slide rail (7) fixedly connected to the inner wall of the lifting frame (6), a driven slider (8) slidably connected to the surface of the lifting slide rail (7), and a second linear motor (9) slidably connected to the surface of the lifting slide rail (7). The second linear motor (9) is fixedly connected to a mounting plate (10), the mounting plate (10) is fixedly connected to a translation slide rail (11), the translation slide rail (11) is slidably connected to a third linear motor (12), the third linear motor (12) is fixedly connected to a printing device (14), the inner wall of the lifting frame (6) is fixedly connected to a second proximity switch (15), the inner wall of the mounting plate (10) is fixedly connected to a third proximity switch (16), the inner wall of the operating table (1) is provided with a limit mechanism (17), and the inner wall of the operating table (1) is provided with a buffer mechanism (18). The limiting mechanism (17) includes a printing table limiting block (1701), an anti-collision limiting block (1702) is fixedly connected to the inner wall of the lifting frame (6), a top limiting block (1703) is fixedly connected to the inner wall of the lifting frame (6), and a translation limiting block (1704) is fixedly connected to the surface of the driven slider (8).
2. The 3D printer limiting and buffering structure according to claim 1, wherein: The number of each of the printing table limiting block (1701), anti-collision limiting block (1702), top limiting block (1703) and translation limiting block (1704) is two, symmetrically distributed at both ends of the motor slide rail. The translation limiting block (1704) is fixedly connected to the surface of the driven slider (8) and the mounting plate (10) respectively.
3. The 3D printer limiting and buffering structure of claim 1, wherein: The surface of the printing table limiting block (1701) is fixedly connected to the inner wall of the operating table (1).
4. The 3D printer limiting and buffering structure of claim 1, wherein: The buffer mechanism (18) includes a printing table slide rod (1801), a first buffer spring (1802) fixedly connected to the inner wall of the operating table (1), a first buffer ring (1803) slidably connected to the surface of the printing table slide rod (1801), a sliding seat (1804) slidably connected to the surface of the printing table slide rod (1801), a spring lifting rod (1805) fixedly connected to the inner wall of the lifting frame (6), a first rubber seat (1806) fixedly connected to the output end of the spring lifting rod (1805), a translation slide rod (1807) fixedly connected to the inner wall of the driven slider (8), a damping ring (1808) fixedly connected to the surface of the third linear motor (12), a second buffer spring (1809) fixedly connected to the surface of the driven slider (8), a second buffer ring (1810) slidably connected to the surface of the translation slide rod (1807), and a second rubber seat (1811) fixedly connected to the inner wall of the lifting frame (6).
5. The 3D printer limiting and buffering structure according to claim 4, characterized in that: The surface of the printing table slide bar (1801) is fixedly connected to the inner wall of the operating table (1), the end of the first buffer spring (1802) away from the operating table (1) is fixedly connected to the surface of the first buffer ring (1803), the top of the sliding seat (1804) is fixedly connected to the top of the printing table (4), and the surface of the translation slide bar (1807) is slidably connected to the inner wall of the third linear motor (12).
6. The 3D printer limiting and buffering structure of claim 4, wherein: The number of the spring lifting rod (1805), the first rubber seat (1806), the damping ring (1808), the second buffer spring (1809), the second buffer ring (1810), and the second rubber seat (1811) are all provided in pairs and are evenly distributed at both ends of the motor slide rail.
7. The 3D printer limiting and buffering structure of claim 4, wherein: The two second buffer springs (1809) are fixedly connected to the surfaces of the mounting plate (10) and the driven slider (8), respectively.