Base plate leveling mechanism of 3D printer
By designing a leveling mechanism in a 3D printer, using adjustment plates, swing clamping frames and rolling balance balls, combined with an independently controlled drive motor, the problem of the substrate losing its horizontal state during rotation and movement is solved, and printing efficiency and safety are improved ensures the stability and accuracy of the substrate.
Patent Information
- Application Number
- CN202422380209.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-09-29
AI Technical Summary
During 3D printing, the substrate is prone to lose its horizontal state when rotating and moving horizontally, resulting in need of readjustment, affecting printing efficiency and safety.
A substrate leveling mechanism including an adjustment plate, a swing clamping frame, a rolling balance ball and an electro-hydraulic cylinder is designed. The horizontal adjustment and rotation of the substrate is achieved through an independently controlled driving motor to ensure that the substrate is always in a horizontal state.
It effectively avoids the problem of the substrate losing its horizontal state when it rotates and moves, improves printing efficiency and safety, and ensures the stability and accuracy of the substrate throughout the printing process.
Smart Images
Figure CN222135968U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of substrate leveling, in particular to a substrate leveling mechanism of a 3D printer. Background Art
[0002] The 3D printing of products is completed in the molding chamber. During the 3D printing process, because it is a high-temperature and dusty environment, there may be risks of product oxidation and explosion. Therefore, the molding chamber needs to be purged before printing, that is, an inert gas (argon is commonly used) is input into the closed molding chamber to remove the original air. Printing in an inert gas environment improves safety, but there will be corresponding problems. For example, the purging time is very long, and after printing, the cabin door needs to be opened to take out the finished product, and then the substrate is arranged, and then the powder is continued after purging. However, leveling the substrate is only part of it. Sometimes it is necessary to rotate this part of the substrate, but conventional rotation adjustment will encounter the problem that the substrate is no longer level, and it needs to be adjusted again; at the same time, when the substrate position needs to be moved horizontally, the horizontal state of the originally leveled substrate will also be destroyed.
[0003] To this end, we designed a substrate leveling mechanism for a 3D printer. Utility Model Content
[0004] The purpose of the utility model is to solve the problem that the conventional rotation adjustment will encounter the problem that the substrate is no longer level and needs to be adjusted again; at the same time, when the substrate position needs to be moved horizontally, the horizontal state of the originally leveled substrate will be destroyed, and a substrate leveling mechanism for a 3D printer is proposed.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A substrate leveling mechanism for a 3D printer comprises an adjustment plate arranged in a leveling bin, wherein four corners of the adjustment plate are provided with swing clamping frames, a substrate is placed on the swing clamping frame, and the swing clamping frame is used to adjust the position and rotation angle of the substrate, the adjustment plate comprises an upper plate and a lower plate, a rolling balancing ball is arranged between the upper plate and the lower plate, a ball groove for supporting the rolling balancing ball is arranged between the upper plate and the lower plate, and lifting parts are arranged on four sides of the upper plate and the lower plate.
[0007] Preferably, a forming bin is provided on the leveling bin, and a substrate bin and a piece removal bin are provided on both sides of the forming bin.
[0008] Preferably, the lifting parts are located in the middle of the four sides of the lower plate, and the two lifting parts and the rolling balancing ball are located in the same straight line.
[0009] Preferably, the lifting part includes an electric hydraulic cylinder and a ball table, which are respectively arranged at the opposite ends of the lower plate and the upper plate. A ball is fixed to the output end of the electric hydraulic cylinder, and the ball rolls in the ball table. The ball table slides along the direction of the rolling balance ball through the slide groove slider assembly.
[0010] Preferably, four sliding grooves are opened along the diagonal lines on the top of the upper plate, and the swing clamping frame slides on the sliding grooves, and the length-to-width ratio of the upper plate is the same as that of the base plate.
[0011] Preferably, the swing clamping frame includes a connecting rod, and both ends of the connecting rod are rotatably connected to a first rotating shaft platform and a second rotating shaft platform, and the first rotating shaft platform is provided with a corner support plate for supporting the substrate.
[0012] Preferably, a base is slidably disposed on the adjustment plate, and the second rotating shaft platform rotates on the top of the base, and a driving motor for driving the swing clamping frame to slide along the diagonal is also disposed on the adjustment plate.
[0013] Preferably, a screw rod penetrating the base is fixed to the output end of the driving motor, and a threaded hole matching the screw rod is provided on the base.
[0014] Preferably, the base slides on the adjustment plate through a sliding groove and a sliding block.
[0015] Preferably, the adjustment plate and the base plate are arranged in parallel.
[0016] The beneficial effects of the utility model are:
[0017] The utility model opens the lifting part to adjust the distance between the upper plate and the lower plate, and under the action of the rolling balancing ball, the upper plate is adjusted around the rolling balancing ball below, so that the upper plate originally in a non-horizontal state is adjusted to a horizontal state.
[0018] In the utility model, since the four driving motors are in an independently controlled state, two adjacent driving motors are in a stopped state, and the remaining two driving motors are in an opened state, the horizontal movement of the substrate in that direction can be achieved; when the remaining three driving motors are in a stationary state, and the other driving motor is in an opened state, the horizontal rotation effect of the substrate can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a structural schematic diagram of a 3D printer proposed by the utility model;
[0020] Figure 2 This is a front view of a 3D printer proposed by the utility model;
[0021] Figure 3This is a structural schematic diagram of a substrate leveling mechanism for a 3D printer proposed by the utility model;
[0022] Figure 4 for Figure 3 A schematic diagram of the structure enlargement at the center A;
[0023] Figure 5 This is a side view of a substrate leveling mechanism for a 3D printer proposed by the utility model;
[0024] Figure 6 This is a bottom view of a substrate leveling mechanism of a 3D printer proposed by the utility model;
[0025] Figure 7 This is a structural schematic diagram of an adjustment plate in a substrate leveling mechanism of a 3D printer proposed by the utility model;
[0026] Figure 8 for Figure 7 A magnified schematic diagram of the structure at point B in the middle.
[0027] In the figure: 1. forming bin; 2. base plate bin; 3. removal bin; 4. leveling bin; 5. adjustment plate; 51. upper plate; 52. lower plate; 6. base plate; 7. corner support plate; 8. first rotating shaft table; 9. second rotating shaft table; 10. connecting rod; 11. base; 12. driving motor; 13. screw rod; 14. sliding groove; 15. rolling balancing ball; 16. ball table; 17. electric hydraulic cylinder; 18. ball bearing. DETAILED DESCRIPTION
[0028] Reference Figure 1-Figure 8 , a substrate leveling mechanism of a 3D printer comprises an adjustment plate 5 arranged in a leveling bin 4, wherein a molding bin 1 is arranged on the leveling bin 4, and a substrate bin 2 and a pickup bin 3 are respectively arranged on both sides of the molding bin 1, and a swing clamping frame is arranged at each of the four corners of the adjustment plate 5, and a substrate 6 is placed on the swing clamping frame, and a sealed door is provided between the pickup bin 3 and the molding bin 1. After printing, the sealed door is opened, and the printed product and the substrate 6 are transported to the pickup bin 3. At this time, the pickup bin 3 is also an argon environment. After the product enters the pickup bin 3, the sealed door is closed. At this time, the door of the pickup bin 3 can be opened normally to take out the printed product. After the printed product in the molding bin 1 is transported to the pickup bin 3, a sealed door is opened between the substrate bin 2 and the molding bin 1, and the substrate 6 is sent into the molding bin 1. After the sealed door is closed, powder printing begins. This technology is a prior art and will not be elaborated on herein.
[0029] After the substrate 6 is sent into the molding chamber 1, it needs to be kept level, which is convenient for the subsequent powder spraying and powder spreading. However, the position of the substrate 6 needs to be adjusted before that, such as the direction adjustment and the position adjustment, to facilitate the subsequent powder spraying and powder spreading operations. Therefore, it is necessary to perform a leveling operation first, and then ensure that the substrate 6 is in a horizontal state, and then adjust the horizontal direction and the rotation position, while ensuring that the above adjustments will not affect the horizontal state of the substrate 6.
[0030] Reference Figure 7 and Figure 8 The adjustment plate 5 includes an upper plate 51 and a lower plate 52, and a rolling balancing ball 15 is arranged between the upper plate 51 and the lower plate 52, and a ball groove for supporting the rolling balancing ball 15 is arranged between the upper plate 51 and the lower plate 52. Lifting parts are arranged on all four sides of the upper plate 51 and the lower plate 52. It should be noted that by opening the lifting part, the distance between the upper plate 51 and the lower plate 52 is adjusted, and under the action of the rolling balancing ball 15, the upper plate 51 is adjusted around the rolling balancing ball 15 below, so that the upper plate 51, which was originally in a non-horizontal state, is adjusted to a horizontal state.
[0031] The lifting parts are located in the middle of the four sides of the lower plate 52, and the two lifting parts and the rolling balancing ball 15 are located in the same straight line. This ensures that when the lifting parts are opened, the lifting point of the upper plate 51 and the rolling balancing ball 15 are only lifted in the vertical direction, that is, the four lifting parts can adjust the balance of the upper plate 51.
[0032] The lifting part includes an electric hydraulic cylinder 17 and a ball table 16, which are respectively arranged at the opposite ends of the lower plate 52 and the upper plate 51. A ball 18 is fixed to the output end of the electric hydraulic cylinder 17. The ball 18 rolls in the ball table 16, and the ball table 16 slides along the direction of the rolling balance ball 15 through the slide groove slider assembly. In this way, the electric hydraulic cylinder 17 can be turned on to ensure that the upper plate 51 above is driven to be adjusted horizontally, thereby realizing the adjustment of the state of the upper plate 51.
[0033] An optical level detection device is also provided in the leveling bin 4, and is used to detect whether the upper plate 51 has reached a horizontal state. If it has not reached a horizontal state, it will be transmitted to the electric hydraulic cylinder 17 through an electrical signal, and the leveling will continue. The optical level detection device and the transmission of the electrical signal to the electric hydraulic cylinder 17 are both prior arts, and will not be elaborated on here. Such a design can ensure that the upper plate 51 of the equipment remains horizontal during operation, and improve the stability and accuracy of the equipment. The use of the optical level detection device makes the leveling process more automated and precise, and can promptly detect and correct the non-horizontal state of the upper plate 51, thereby ensuring the normal operation and working effect of the equipment.
[0034] An optical level detection device is a device that uses optical principles to detect whether an object is in a horizontal state. It is usually composed of a light source, an optical sensor, and a signal processing circuit. When the object being detected is in a horizontal state, the light signal received by the optical sensor will show specific characteristics. By analyzing and processing these characteristics, it can be determined whether the object is horizontal.
[0035] When the optical level detection device detects that the upper plate 51 is not in a horizontal state, it transmits an electrical signal to the electric hydraulic cylinder 17. The electric hydraulic cylinder 17 is a device that can convert electrical energy into mechanical energy. It can control the extension and contraction of the electric hydraulic cylinder 17 by receiving the electrical signal, thereby realizing the leveling operation of the upper plate 51.
[0036] The cooperation of the optical level detection device and the electric hydraulic cylinder 17 can realize automatic leveling of the upper plate 51, thereby improving the stability and precision of the equipment. At the same time, since the optical level detection device and the electric hydraulic cylinder 17 are both existing technologies, they can be selected and combined according to specific needs in actual applications to meet different leveling requirements.
[0037] The upper plate 51 is connected to the upper base plate 6 via a plurality of connecting rods 10 and is always kept parallel to each other, that is, the level of the base plate 6 can be adjusted intermittently by adjusting the level of the upper plate 51 .
[0038] Four sliding grooves 14 are provided along the diagonal on the top of the upper plate 51, and the swing clamping frame slides on the sliding grooves 14. The length-to-width ratio of the upper plate 51 is the same as that of the substrate 6. This arrangement can ensure that the substrate 6 is above the upper plate 51. Since the swing clamping frame slides along the diagonal on the upper plate 51, under the clamping action of the swing clamping frame, the adjustment plate 5 and the substrate 6 are arranged in parallel. Therefore, the horizontal adjustment and the rotation position adjustment can be achieved by adjusting the state of the swing clamping frame, and there is no need to consider the horizontal state of the substrate 6 being destroyed. Therefore, the non-horizontal state of the substrate 6 can be adjusted, and the subsequent powder spraying and powder spreading operations can be achieved at the same time.
[0039] Reference Figure 3 and Figure 4 State, the four corners of the adjustment plate 5 are provided with swing clamping frames, wherein the swing clamping frames are used to adjust the position and rotation angle of the substrate 6, the swing clamping frames include a connecting rod 10, and the two ends of the connecting rod 10 are respectively rotatably connected with a first rotating shaft platform 8 and a second rotating shaft platform 9, and the first rotating shaft platform 8 is provided with a corner support plate 7 for supporting the substrate 6, which is used to support and fix the substrate 6.
[0040] A screw rod 13 penetrating the base 11 is fixed to the output end of the driving motor 12 , and a threaded hole matching the screw rod 13 is provided on the base 11 . The base 11 slides on the adjustment plate 5 through the sliding groove 14 and the sliding block.
[0041] A base 11 is slidably provided on the adjustment plate 5, and the second rotating shaft platform 9 rotates on the top of the base 11, and a driving motor 12 for driving the swing clamping frame to slide along the diagonal is also provided on the adjustment plate 5, wherein the four driving motors 12 are in an independently controlled state, two adjacent driving motors 12 are in a stopped state, and the remaining two driving motors 12 are in an open state, thereby realizing the horizontal movement of the substrate 6 to that direction.
[0042] When the remaining three driving motors 12 are in a non-on state and another driving motor 12 is in an on state, the horizontal rotation effect of the substrate 6 can be achieved.
[0043] Furthermore, the horizontal position adjustment and horizontal rotation adjustment of the substrate 6 in the horizontal state can be performed.
[0044] The working principle of the utility model is as follows:
[0045] After the printed products in the molding bin 1 are transported to the pickup bin 3, a sealed door between the substrate bin 2 and the molding bin 1 is opened, and the substrate 6 is sent into the molding bin 1. After the sealed door is closed, powder printing begins. Therefore, it is necessary to adjust the horizontal position first. By opening the lifting part, the distance between the upper plate 51 and the lower plate 52 is adjusted. Under the action of the rolling balancing ball 15, the upper plate 51 is adjusted around the rolling balancing ball 15 below, and the upper plate 51, which was originally in a non-horizontal state, is adjusted to a horizontal state.
[0046] Then, since the four drive motors 12 are in an independently controlled state, two adjacent drive motors 12 are in a stopped state, and the remaining two drive motors 12 are in an turned-on state, the horizontal movement of the substrate 6 to a horizontal position can be achieved; when the remaining three drive motors 12 are in a stationary state and the other drive motor 12 is in an turned-on state, the horizontal rotation effect of the substrate 6 can be achieved.
[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A substrate leveling mechanism for a 3D printer, comprising an adjustment plate (5) arranged in a leveling chamber (4), characterized in that: The four corners of the adjustment plate (5) are each provided with a swing clamping frame, a base plate (6) is placed on the swing clamping frame, and the swing clamping frame is used to adjust the position and rotation angle of the base plate (6). The adjustment plate (5) comprises an upper plate (51) and a lower plate (52), and a rolling balancing ball (15) is provided between the upper plate (51) and the lower plate (52), and a ball groove for supporting the rolling balancing ball (15) is provided between the upper plate (51) and the lower plate (52), and lifting portions are provided on the four sides of the upper plate (51) and the lower plate (52).
2. A substrate leveling mechanism for a 3D printer according to claim 1, characterized in that: A forming bin (1) is provided on the leveling bin (4), and a base plate bin (2) and a piece removal bin (3) are respectively provided on both sides of the forming bin (1).
3. The substrate leveling mechanism of a 3D printer according to claim 1, characterized in that: The lifting parts are located in the middle of the four sides of the lower plate (52), and the two lifting parts and the rolling balancing ball (15) are located in the same straight line.
4. The substrate leveling mechanism of a 3D printer according to claim 1, characterized in that: The lifting part comprises an electric hydraulic cylinder (17) and a ball table (16), wherein the electric hydraulic cylinder (17) and the ball table (16) are respectively arranged at opposite ends of the lower plate (52) and the upper plate (51), and a ball bearing (18) is fixed to the output end of the electric hydraulic cylinder (17), wherein the ball bearing (18) rolls in the ball table (16), and the ball table (16) slides along the direction of the rolling balance ball (15) through a slide groove slider assembly.
5. The substrate leveling mechanism of a 3D printer according to claim 1, characterized in that: Four sliding grooves (14) are provided on the top of the upper plate (51) along the diagonal line, and the swing clamping frame slides on the sliding grooves (14). The length-to-width ratio of the upper plate (51) is the same as that of the base plate (6).
6. The substrate leveling mechanism of a 3D printer according to claim 5, characterized in that: The swing clamping frame comprises a connecting rod (10), and the two ends of the connecting rod (10) are rotatably connected to a first rotating shaft platform (8) and a second rotating shaft platform (9), respectively, and the first rotating shaft platform (8) is provided with a corner support plate (7) for supporting the base plate (6).
7. The substrate leveling mechanism of a 3D printer according to claim 6, characterized in that: A base (11) is slidably mounted on the adjustment plate (5), and the second rotating shaft platform (9) rotates on the top of the base (11). A driving motor (12) for driving the swing clamping frame to slide along a diagonal line is also provided on the adjustment plate (5).
8. The substrate leveling mechanism of a 3D printer according to claim 7, characterized in that: A screw rod (13) penetrating the base (11) is fixed to the output end of the driving motor (12), and a threaded hole matching the screw rod (13) is provided on the base (11).
9. The substrate leveling mechanism of a 3D printer according to claim 8, characterized in that: The base (11) slides on the adjustment plate (5) via the sliding groove (14) and the sliding block.
10. The substrate leveling mechanism of a 3D printer according to claim 1, characterized in that: The adjustment plate (5) and the base plate (6) are arranged in parallel.