A 3D printer vacuum chuck platform

Abstract

The utility model provides a kind of 3D printer vacuum chuck platform, including silicon chip fixed platform, forming platform, cylindrical boss, heating block and negative pressure air pipe, the baffle of silicon chip fixed platform center is provided with several air holes, negative pressure air pipe one end is inserted to cylindrical boss, and located at the top of air extraction channel, air extraction channel bottom end is located above baffle, after the piece body pedestal to be printed is placed below silicon chip fixed platform, connect negative pressure air pipe by external vacuumizing equipment, realize the vacuumizing to piece body pedestal by air extraction channel and air hole, so as to carry out vacuum adsorption to piece body pedestal, after printing is completed, stop vacuumizing, and after opening rubber cap, piece body pedestal can be made to fall off, improve printing efficiency, simultaneously, by the mode of vacuum adsorption, the damage to entire platform can be reduced, and different material, thickness, shape and size piece body pedestal can be replaced, meet the needs of different users.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing equipment technology, and in particular to a vacuum suction cup platform for a 3D printer. Background Technology

[0002] 3D printing technology is increasingly used in the manufacturing of micro parts and micro-nano structures, but existing forming stage modules still have obvious limitations. In traditional 3D printing, the printed parts need to be disassembled, cleaned and cured after printing with the forming stage or a special substrate. During this process, micro parts are prone to cracking, deformation and other damage due to their fragile structure, resulting in a reduced yield. At the same time, in some printing scenarios, the model needs to be integrated with other parts, which limits the independent use of parts and the demand for customized production.

[0003] Furthermore, the substrates of existing forming stages are mostly designed with fixed specifications, and their thickness, size, material, and shape are difficult to adjust flexibly, failing to meet the diverse printing needs of different customers. For micro-nano printing scenarios, conventional substrates are too large and the disassembly and assembly process is cumbersome, which not only affects printing accuracy but also reduces operational efficiency. Moreover, some fixing methods are prone to damaging the substrate, further limiting the application and expansion of 3D printing technology in the field of micro-part manufacturing. Utility Model Content

[0004] In view of this, the present invention proposes a vacuum suction cup platform for a 3D printer, which can clamp the sheet base by vacuum, making it convenient to use, and at the same time, it can quickly change sheet bases of different sizes for printing.

[0005] The technical solution of this utility model is implemented as follows: A vacuum suction cup platform for a 3D printer includes a silicon wafer fixing platform, a forming platform, a cylindrical boss, a heating block, and a negative pressure air pipe. The silicon wafer fixing platform is located below the forming platform, with its upper and lower surfaces recessed towards the center to form a partition. The partition has several ventilation holes. The cylindrical boss is integrally formed above the forming platform. The bottom end of the heating block is detachably connected to the top end of the cylindrical boss. One end of the negative pressure air pipe is embedded in the side wall of the cylindrical boss. The bottom surface of the forming platform has an air extraction channel, the bottom end of which is located above the partition, and its top end extends upward into the cylindrical boss and communicates with the negative pressure air pipe.

[0006] Preferably, the top surface of the cylindrical boss is provided with a step, and the bottom of the heating block abuts against the step.

[0007] Preferably, it also includes a quick-release male end and a quick-release female end, wherein the quick-release male end is embedded in the bottom surface of the heating block, and the quick-release female end is embedded in the top surface of the cylindrical boss, and the quick-release male end and the quick-release female end are detachably connected.

[0008] Preferably, the quick-release male end is provided with an embedded rod at its bottom, and the outer wall of the embedded rod is symmetrically provided with limiting rods. The top surface of the quick-release female end is provided with a through hole, and the two sides of the through hole are symmetrically provided with strip grooves. The embedded rod passes through the through hole and causes the limiting rod to pass through the strip groove. The heating block rotates to cause the limiting rod to be misaligned with the strip groove.

[0009] Preferably, it also includes a sliding limiting frame, which is sleeved on the outside of the cylindrical boss and located above the forming platform.

[0010] Preferably, it also includes a spring pin, the bottom end of which is disposed on the top surface of the forming platform, and the top end of which passes through the sliding limit frame.

[0011] Preferably, the spring pin includes an outer spring and an inner pin. The inner pin is disposed on the top surface of the forming platform, and its top end passes through the sliding limit frame. The outer spring is sleeved on the outside of the inner pin.

[0012] Preferably, it also includes a rubber cap, wherein an inverted L-shaped air intake is provided inside the cylindrical boss, the bottom end of the inverted L-shaped air intake is located above the partition, and its top end extends to the outer wall of the cylindrical boss, and the rubber cap is embedded in the top end of the inverted L-shaped air intake.

[0013] Preferably, it also includes a platform fixing block, which is disposed on the top surface of the heating block.

[0014] Preferably, it also includes a vacuum chamber upper plate, which is disposed above the partition plate. The bottom ends of the air extraction channel and the inverted L-shaped air inlet channel pass through the vacuum chamber upper plate and are connected to the top of the partition plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This utility model discloses a vacuum suction cup platform for a 3D printer. It allows the wafer base to be placed below a silicon wafer fixing platform. Before 3D printing, an external vacuum negative pressure device is connected to a negative pressure air pipe. The negative pressure air pipe can extract air from below the partition through the air extraction channel and the vent holes on the partition, creating a vacuum and achieving vacuum adsorption of the wafer base. After printing, the vacuum process can be stopped, and the wafer base can then quickly detach under gravity. The suction method allows for quick assembly and disassembly without damaging the base. Furthermore, wafer bases of different sizes, thicknesses, materials, and shapes can be placed below the silicon wafer fixing platform to meet the printing needs of different users. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a vacuum suction cup platform for a 3D printer according to the present invention; Figure 2 This is a cross-sectional view of a vacuum suction cup platform for a 3D printer according to the present invention; Figure 3 This is a schematic diagram of the quick-release male and quick-release female ends of a 3D printer vacuum suction cup platform according to the present invention. In the diagram, 1. Plate fixing platform; 2. Forming platform; 3. Cylindrical boss; 4. Heating block; 5. Negative pressure air pipe; 6. Partition plate; 7. Vent hole; 8. Air extraction channel; 9. Step position; 10. Quick-release male end; 11. Quick-release female end; 12. Embedded rod; 13. Limiting rod; 14. Through hole; 15. Strip groove; 16. Sliding limit frame; 17. Spring pin; 18. Outer spring; 19. Inner pin; 20. Rubber cap; 21. Inverted L-shaped air inlet; 22. Platform fixing block; 23. Vacuum chamber upper plate; 24. Plate base. Detailed Implementation

[0018] To better understand the technical content of this utility model, a specific embodiment is provided below, and the utility model will be further described in conjunction with the accompanying drawings.

[0019] See Figures 1 to 3 This utility model provides a vacuum suction cup platform for a 3D printer, including a silicon wafer fixing platform 1, a forming platform 2, a cylindrical boss 3, a heating block 4, and a negative pressure air pipe 5. The silicon wafer fixing platform 1 is located below the forming platform 2, and its upper and lower surfaces are recessed towards the center to form a partition 6. The partition 6 is provided with a plurality of ventilation holes 7. The cylindrical boss 3 is integrally formed above the forming platform 2. The bottom end of the heating block 4 is detachably connected to the top end of the cylindrical boss 3. One end of the negative pressure air pipe 5 is embedded in the side wall of the cylindrical boss 3. The bottom surface of the forming platform 2 is provided with an air extraction channel 8. The bottom end of the air extraction channel 8 is located above the partition 6, and its top end extends upward into the cylindrical boss 3 and communicates with the negative pressure air pipe 5.

[0020] This utility model discloses a vacuum suction cup platform for a 3D printer. Before printing, the required wafer base 24 is placed below the silicon wafer fixing platform 1 and aligned with the air holes of the partition 6. Then, an external vacuum pump or other vacuum-evacuating device is connected to the negative pressure air pipe 5 to evacuate the negative pressure air pipe 5. The end of the negative pressure air pipe 5 is embedded in the cylindrical boss 3 and connected to the top of the suction channel 8. Simultaneously, the bottom end of the suction channel 8 extends above the partition 6. Therefore, air above the wafer base 24 can be drawn through the vent 7 and the suction channel 8, thus forming a vacuum. Under the influence of the pressure difference... The wafer base 24 can be securely attached to the silicon wafer fixing platform 1, allowing 3D printing to be performed on the wafer base 24. After printing is completed, the vacuuming process can be stopped, and after degassing, the wafer base 24 and the printed structure on it can be quickly detached under the influence of gravity. Vacuum attachment reduces damage to the silicon wafer fixing platform 1 and prevents damage to the printed structure during disassembly, cleaning, and curing processes, ensuring the integrity of the printed structure. Furthermore, vacuum attachment is applicable to wafer bases 24 of different thicknesses, sizes, materials, and shapes, thus meeting the needs of different customers.

[0021] The molding platform 2 and the cylindrical boss 3 are integrally molded to ensure the integrity of the structure. After the silicon wafer fixing platform 1 is placed on the molding platform 2, the hydrogel can be printed on the wafer base 24 under the action of the heating block 4.

[0022] Preferably, the top surface of the cylindrical boss 3 is provided with a step 9, and the bottom of the heating block 4 abuts against the step 9.

[0023] To facilitate the connection of the heating block 4, a recessed step 9 is provided on the top of the cylindrical boss 3, and the bottom of the heating block 4 can directly extend into the cylindrical boss 3 and abut against the step 9.

[0024] Preferably, it also includes a quick-release male end 10 and a quick-release female end 11. The quick-release male end 10 is embedded in the bottom surface of the heating block 4, and the quick-release female end 11 is embedded in the top surface of the cylindrical boss 3. The quick-release male end 10 and the quick-release female end 11 are detachably connected. The bottom of the quick-release male end 10 is provided with an embedded rod 12. The outer wall of the embedded rod 12 is symmetrically provided with limiting rods 13. The top surface of the quick-release female end 11 is provided with a through hole 14. The two sides of the through hole 14 are symmetrically provided with strip grooves 15. The embedded rod 12 passes through the through hole 14 and causes the limiting rod 13 to pass through the strip groove 15. The heating block 4 rotates to cause the limiting rod 13 to be misaligned with the strip groove 15.

[0025] Quick-release male end 10 and quick-release female end 11 are respectively embedded in the heating block 4 and the cylindrical boss 3. The quick-release male end 10 and quick-release female end 11 can be quickly installed and removed by a quick-release mechanism, which includes an embedded rod 12 and a limiting rod 13. The limiting rod 13 is located on both sides of the embedded rod 12 and is symmetrically arranged. After the embedded rod 12 is aligned with the through hole 14 and the limiting rod 13 is aligned with the strip grooves 15 on both sides of the through hole 14, the embedded rod 12 and the limiting rod 13 pass through the through hole 14 and the strip grooves 15 respectively. After the limiting rod 13 has completely passed through the strip grooves 15, the entire heating block 4 can be rotated. The heating block 4 drives the quick-release male end 10 to rotate, so that the limiting rod 13 moves away from below the strip grooves 15 and is misaligned with the strip grooves 15 to achieve installation. When disassembling, it is only necessary to rotate the limiting rod 13 to below the strip grooves 15 to disassemble.

[0026] Preferably, it also includes a sliding limiting frame 16, which is sleeved on the outside of the cylindrical boss 3 and located above the forming platform 2, and also includes a spring pin 17, the bottom end of which is set on the top surface of the forming platform 2, and its top end passes through the sliding limiting frame 16.

[0027] The sliding limit frame 16 can slide up and down along the cylindrical boss 3 and press the spring pin 17 to adjust the relative position so as to suit different printing needs.

[0028] Preferably, the spring pin 17 includes an outer spring 18 and an inner pin 19. The inner pin 19 is disposed on the top surface of the forming platform 2, and its top end passes through the sliding limit frame 16. The outer spring 18 is sleeved on the outside of the inner pin 19.

[0029] When the sliding limit frame 16 slides up and down, it can move along the inner post pin 19 and compress the outer spring 18 to achieve adjustment.

[0030] Preferably, it also includes a rubber cap 20, and an inverted L-shaped air intake 21 is provided inside the cylindrical boss 3. The bottom end of the inverted L-shaped air intake 21 is located above the partition 6, and its top end extends to the outer wall of the cylindrical boss 3. The rubber cap 20 is embedded in the top end of the inverted L-shaped air intake 21.

[0031] After printing is complete, the cap 20 can be pulled out, allowing outside air to enter the partition 6 through the inverted L-shaped air inlet 21, stopping the vacuuming process, and allowing the sheet base 24 to fall off.

[0032] Preferably, it also includes a platform fixing block 22, which is disposed on the top surface of the heating block 4.

[0033] The platform fixing block 22 is used to connect with the mobile platform of the 3D printer so that it can be moved.

[0034] Preferably, it also includes a vacuum chamber upper plate 23, which is disposed above the partition 6, and the air extraction channel 8 passes through the vacuum chamber upper plate 23 and communicates with the upper part of the partition 6.

[0035] The upper plate 23 of the vacuum chamber is used to seal the area above the partition 6, ensuring that air can be drawn out from the vent 7 and the air extraction channel 8, thereby improving the vacuum adsorption effect of the plate base 24.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vacuum suction cup platform for a 3D printer, characterized in that, The device includes a silicon wafer fixing platform, a forming platform, a cylindrical boss, a heating block, and a negative pressure air pipe. The silicon wafer fixing platform is located below the forming platform, and its upper and lower surfaces are recessed towards the center to form a partition. The partition has several ventilation holes. The cylindrical boss is integrally formed above the forming platform. The bottom end of the heating block is detachably connected to the top end of the cylindrical boss. One end of the negative pressure air pipe is embedded in the side wall of the cylindrical boss. The bottom surface of the forming platform is provided with an air extraction channel. The bottom end of the air extraction channel is located above the partition, and its top end extends upward into the cylindrical boss and communicates with the negative pressure air pipe.

2. The 3D printer vacuum suction cup platform according to claim 1, characterized in that, The top surface of the cylindrical boss is provided with a step, and the bottom of the heating block abuts against the step.

3. A 3D printer vacuum suction cup platform according to claim 1, characterized in that, It also includes a quick-release male end and a quick-release female end. The quick-release male end is embedded in the bottom surface of the heating block, and the quick-release female end is embedded in the top surface of the cylindrical boss. The quick-release male end and the quick-release female end are detachably connected.

4. A 3D printer vacuum suction cup platform according to claim 3, characterized in that, The quick-release male end is provided with an embedded rod at its bottom, and the outer wall of the embedded rod is symmetrically provided with limiting rods. The top surface of the quick-release female end is provided with a through hole, and the two sides of the through hole are symmetrically provided with strip grooves. The embedded rod passes through the through hole and causes the limiting rod to pass through the strip groove. The heating block rotates to make the limiting rod and the strip groove misalign.

5. A 3D printer vacuum suction cup platform according to claim 1, characterized in that, It also includes a sliding limiting frame, which is sleeved on the outside of the cylindrical boss and located above the forming platform.

6. A 3D printer vacuum suction cup platform according to claim 5, characterized in that, It also includes a spring pin, the bottom end of which is located on the top surface of the forming platform, and the top end of which passes through the sliding limit frame.

7. A 3D printer vacuum suction cup platform according to claim 6, characterized in that, The spring pin includes an outer spring and an inner pin. The inner pin is disposed on the top surface of the forming platform, and its top end passes through the sliding limit frame. The outer spring is sleeved on the outside of the inner pin.

8. A 3D printer vacuum suction cup platform according to claim 1, characterized in that, It also includes a rubber cap, and an inverted L-shaped air intake is provided inside the cylindrical boss. The bottom end of the inverted L-shaped air intake is located above the partition, and its top end extends to the outer wall of the cylindrical boss. The rubber cap is embedded in the top end of the inverted L-shaped air intake.

9. A 3D printer vacuum suction cup platform according to claim 1, characterized in that, It also includes a platform fixing block, which is disposed on the top surface of the heating block.

10. A 3D printer vacuum suction cup platform according to claim 8, characterized in that, It also includes a vacuum chamber upper plate, which is disposed above the partition. The bottom ends of the air extraction channel and the inverted L-shaped air inlet channel pass through the vacuum chamber upper plate and are connected to the top of the partition.

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