Preparation method and preparation equipment for 3D printing titanium alloy powder

Abstract

The invention discloses a 3D printing titanium alloy powder preparation method and preparation equipment, and relates to the technical field of titanium alloys, a driving assembly can drive a clamping assembly to grab titanium alloy scraps, and when the clamping assembly grabs the titanium alloy scraps, a first limiting assembly relieves limiting of the clamping assembly; the clamping assembly can trigger the second limiting assembly to relieve limiting of the sliding assembly when the clamping assembly returns after grabbing titanium alloy scraps, then the pulling assembly can drive the driving assembly to slide, and when the clamping assembly slides to the position above the vibrating screen and slides to be in contact with the reset assembly, the clamping assembly can reset. The reset assembly can drive the clamping assembly to relieve grabbing of the titanium alloy scraps, so that the titanium alloy scraps in the material barrel can be placed on the vibrating screen in batches, at the moment, operation of workers is not needed, and manpower resources are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of titanium alloys, and in particular to a method and equipment for preparing titanium alloy powder for 3D printing. Background Art

[0002] Powdered titanium alloy is a material made by atomizing, rotating electrodes or crushing qualified titanium alloy into powder, hot extruding into rods, hot isostatic pressing into titanium alloy turbine disks, aircraft keel joints, and seawater desalination devices. Titanium and its alloys have high specific strength, good medium-temperature heat strength, corrosion resistance and abundant resources. Therefore, they are widely used in aviation, chemical industry, metallurgy, medical treatment, marine engineering and other fields. Titanium and its alloys have become the main metal structural materials for aircraft engines.

[0003] However, when titanium alloy is crushed and screened into powder, it is often necessary to manually place the titanium alloy crumbs collected in the material barrel on a vibrating screen for screening. However, the amount of titanium alloy crumbs placed manually each time is different, which can easily affect the production efficiency of the titanium alloy powder. Dust will be generated during screening, affecting the safety and health of the operators. Summary of the invention

[0004] The purpose of the present invention is to provide a 3D printing titanium alloy powder preparation method and preparation equipment to solve the deficiencies in the above-mentioned prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solution: comprising the following preparation steps:

[0006] S1. Feed the titanium alloy raw material into a powder machine for crushing;

[0007] S2, cooling the crushed titanium alloy powder;

[0008] S3, collecting the cooled titanium alloy fragments;

[0009] S4, the collected titanium alloy powder is sent into the vibrating screen through the grabbing structure;

[0010] S5. Screening out titanium alloy powders of different finenesses through a vibrating screen;

[0011] S6. Collect titanium alloy powders of different finenesses.

[0012] Furthermore, the grabbing structure includes a mounting shell, a driving component is slidably connected in the mounting shell, a clamping component is provided at the output end of the driving component, and the driving component can drive the clamping component to grab the titanium alloy powder;

[0013] One end of a first limiting component is arranged in the installation shell, and the other end of the first limiting component is arranged on the clamping component, so that the first limiting component can release the limiting of the clamping component when the clamping component grabs the titanium alloy fragments;

[0014] A second limiting component is arranged in the mounting shell, and the second limiting component can limit the driving component. When the clamping component returns after grabbing the titanium alloy fragments, the second limiting component can be triggered to release the limiting of the sliding component.

[0015] The mounting shell is provided with a pulling assembly, and the pulling assembly can drive the driving assembly to slide;

[0016] The mounting shell is also provided with a reset component. When the clamping component slides to contact the reset component, the reset component can drive the clamping component to release the grip of the titanium alloy fragments.

[0017] Furthermore, the driving assembly includes an electric telescopic rod slidably connected to the mounting shell, the output end of the electric telescopic rod extends to the outside of the mounting shell, two limit blocks are provided on the electric telescopic rod, and a fixing plate is fixedly provided on the electric telescopic rod.

[0018] Furthermore, the clamping assembly includes a support plate arranged on the output end of the electric telescopic rod, a connecting piece is arranged at the bottom of the support plate, a first torsion spring piece is arranged on each side of the connecting piece, a clamping hopper is arranged at each output end of the two first torsion spring pieces, and a limiting hole is arranged at the beginning of each of the two clamping hoppers.

[0019] Furthermore, the first limiting assembly includes two second torsion spring members arranged on the fixed plate, each of the two second torsion spring members is connected to one end of a first wire, the other ends of the two first wires pass through the fixed plate, each of the two first wires is connected to one end of the fixed plate, the two limiting members are slidably connected to the support plate, the two limiting members limit the two clamping hoppers, the two limiting members are provided with arc surfaces, the two limiting members are each provided with two fifth spring telescopic members, and the four fifth spring telescopic members are fixedly arranged on the support plate.

[0020] Furthermore, the second limiting assembly includes two support rods arranged inside the mounting shell, each of the two support rods is provided with a first spring telescopic member, each of the two first spring telescopic members is provided with a limiting rod, the bottoms of the two limiting rods both penetrate to the outside of the mounting shell, and the two limiting rods correspond to the positions of the two limiting blocks respectively.

[0021] Furthermore, the pulling assembly includes two third torsion spring members arranged on the mounting shell, one end of a second wire is respectively connected to the two third torsion spring members, the other ends of the two second wires are respectively provided with a pull ring, the two pull rings are respectively sleeved on the two third wires, one end of the two third wires are both provided on the support plate, the other ends of the two third wires are both provided on an abutment plate, the abutment plate is slidably connected in the mounting shell, the abutment plate corresponds to the position of the electric telescopic rod, one end of a spring member is provided on the abutment plate, and one end of the spring member is provided on the mounting shell.

[0022] Furthermore, the pulling assembly also includes a fourth torsion spring component arranged on the mounting shell, one end of a fourth wire is connected to the fourth torsion spring component, the other end of the fourth wire passes through the interior of the mounting shell, one end of the fourth wire located inside the mounting shell passes through the abutment plate, and one end of the fourth wire passes through the abutment plate and contacts the electric telescopic rod.

[0023] Furthermore, the pulling assembly also includes four second spring expansion members arranged on the mounting shell, each of the four second spring expansion members has a clamping block arranged on its output end, and each of the four clamping blocks has an inclined surface arranged on it.

[0024] Furthermore, the reset assembly includes two first limiting rails arranged on the mounting shell, each of the two first limiting rails is slidably connected to a third spring telescopic member output end, the two third spring telescopic members are slidably connected to the two second limiting rails one by one, and the two second limiting rails are respectively limited one by one for the sliding of the two third spring telescopic members, one end of a fifth wire is connected to each of the two third spring telescopic members, the other ends of the two fifth wires are respectively connected to two winding shafts, the two winding shafts are both rotatably connected to the mounting shell, the two winding shafts are respectively connected to two ends of a rotating shaft, a gear member is provided on the rotating upper sleeve, the gear member is meshed with a gear condition, the gear condition is slidably connected to the mounting shell, a fourth spring telescopic member is provided at one end of the gear condition, the fourth spring telescopic member is arranged on the mounting shell, and the end of the gear condition away from the fourth spring telescopic member passes through the outside of the mounting shell.

[0025] In the above technical scheme, the present invention provides a 3D printing titanium alloy powder preparation method and preparation equipment, which can drive the clamping component to grab the titanium alloy fragments through the driving component. When the clamping component grabs the titanium alloy fragments, the first limit component releases the limit on the clamping component. When the clamping component returns to its position after grabbing the titanium alloy fragments, it can trigger the second limit component to release the limit on the sliding component. Then the pulling component can drive the driving component to slide. When sliding to the top of the vibrating screen, when the clamping component slides to contact the reset component, the reset component can drive the clamping component to release the grip of the titanium alloy fragments, so that the titanium alloy fragments in the barrel can be placed on the vibrating screen in batches. At this time, there is no need for staff to operate, which saves human resources and ensures the health and safety of workers. In addition, through the setting of the hydraulic rod, the barrel can be moved up after each clamping, so that the number of titanium alloy fragments placed on the vibrating screen each time is roughly the same, so as to prevent too much titanium alloy fragments from being placed at one time during manual operation and affecting the screening of the vibrating screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 One of the overall structural diagrams provided by the embodiment of the present invention;

[0028] Figure 2 The second schematic diagram of the overall structure provided by the embodiment of the present invention;

[0029] Figure 3 One of the partial structural schematic diagrams provided for an embodiment of the present invention;

[0030] Figure 4 A second schematic diagram of a portion of the structure provided in an embodiment of the present invention;

[0031] Figure 5 Partial structural diagram of the third embodiment of the present invention;

[0032] Figure 6 The fourth partial structural diagram provided for an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. Mounting shell; 2. Driving assembly; 21. Electric telescopic rod; 22. Limiting block; 23. Fixing plate; 3. Clamping assembly; 31. Support plate; 33. First torsion spring member; 34. Clamping hopper; 4. First limiting assembly; 41. Second torsion spring member; 42. First wire; 43. Limiting member; 44. Fifth spring telescopic member; 5. Second limiting assembly; 51. Support rod; 52. First spring telescopic member; 53. Limiting rod; 6. Pulling assembly; 61. Third torsion spring Component; 62, second wire; 63, pull ring; 64, third wire; 65, abutment plate; 66, spring component; 67, fourth torsion spring component; 68, fourth wire; 69, second spring telescopic component; 610, clamping block; 7, reset assembly; 71, first limit track; 72, third spring telescopic component; 73, second limit track; 74, fifth wire; 75, winding shaft; 76, rotating shaft; 77, gear component; 78, gear condition; 79, fourth spring telescopic component. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] See also Figure 1-6 The present invention provides a 3D printing titanium alloy powder preparation method and preparation equipment, including the following preparation steps:

[0037] S1. Send the titanium alloy raw material into a powder machine for crushing;

[0038] S2, cooling the crushed titanium alloy powder;

[0039] S3, collecting the cooled titanium alloy fragments;

[0040] S4, the collected titanium alloy powder is sent into the vibrating screen through the grabbing structure;

[0041] S5. Screening out titanium alloy powders of different finenesses through a vibrating screen;

[0042] S6. Collect titanium alloy powders of different finenesses.

[0043] Preferably, the grabbing structure includes a mounting shell 1, a driving component 2 is slidably connected in the mounting shell 1, a clamping component 3 is provided at the output end of the driving component 2, and the driving component 2 can drive the clamping component 3 to grab the titanium alloy powder;

[0044] One end of a first limiting component 4 is disposed in the mounting shell 1, and the other end of the first limiting component 4 is disposed on the clamping component 3, so that the first limiting component 4 can release the limiting of the clamping component 3 when the clamping component 3 grabs the titanium alloy chips;

[0045] A second limiting component 5 is disposed in the mounting shell 1, and the second limiting component 5 can limit the driving component 2. When the clamping component 3 returns to its original position after grabbing the titanium alloy fragments, it can trigger the second limiting component 5 to release the limiting of the sliding component.

[0046] The mounting shell 1 is provided with a pulling assembly 6, and the pulling assembly 6 can drive the driving assembly 2 to slide;

[0047] The mounting shell 1 is further provided with a reset assembly 7. When the clamping assembly 3 slides to contact the reset assembly 7, the reset assembly 7 can drive the clamping assembly 3 to release the grip on the titanium alloy fragments.

[0048] Preferably, the driving assembly 2 includes an electric telescopic rod 21 slidably connected to the mounting shell 1, the output end of the electric telescopic rod 21 extends to the outside of the mounting shell 1, two limit blocks 22 are provided on the electric telescopic rod 21, and a fixed plate 23 is fixedly provided on the electric telescopic rod 21. The setting of the electric telescopic rod 21 enables the clamping assembly 3 to move downward to grab the titanium alloy fragments in the barrel, and the setting of the limit block 22 enables the position of the electric telescopic rod 21 to be limited.

[0049] Preferably, the clamping assembly 3 includes a support plate 31 arranged on the output end of the electric telescopic rod 21, a connecting piece is arranged at the bottom of the support plate 31, a first torsion spring piece 33 is arranged on each side of the connecting piece, and a clamping hopper 34 is arranged at each output end of the two first torsion spring pieces 33, and a limiting hole is provided at the beginning of each of the two clamping hoppers 34. The setting of the clamping assembly 3 enables the titanium alloy fragments in the barrel to be clamped.

[0050] Preferably, the first limiting assembly 4 includes two second torsion spring members 41 arranged on the fixed plate 23, each of the two second torsion spring members 41 is connected to one end of a first wire 42, the other ends of the two first wires 42 pass through the fixed plate 23, and each of the two first wires 42 is connected to one end of the fixed plate 23, and the two limiting members 43 are slidably connected to the support plate 31, and the two limiting members 43 limit the two clamping hoppers 34, and the two limiting members 43 are provided with arc surfaces, and two fifth spring telescopic members 44 are respectively provided on the two limiting members 43, and the four fifth spring telescopic members 44 are fixedly arranged on the support plate 31. Through the setting of the first limiting member 43, the two clamping hoppers 34 can maintain the separated state of the two titanium alloy fragments when the titanium alloy fragments are not grabbed, and can be reset when the two clamping hoppers 34 are separated and reset.

[0051] Preferably, the second limiting assembly 5 includes two support rods 51 arranged inside the mounting shell 1, each of the two support rods 51 is provided with a first spring telescopic member 52, and each of the output ends of the two first spring telescopic members 52 is provided with a limiting rod 53, and the bottoms of the two limiting rods 53 extend through the outside of the mounting shell 1, and the two limiting rods 53 correspond to the positions of the two limiting blocks 22 respectively. Through the setting of the second limiting assembly 5, the position of the electric telescopic rod 21 can be limited, and the limitation of the electric telescopic rod 21 can be released, so that when the electric telescopic rod 21 drives the clamping assembly 3 to move downward or upward, the second limiting assembly 5 can limit the electric telescopic rod 21 to ensure that the clamping assembly 3 can enter the barrel for clamping.

[0052] Preferably, the pulling assembly 6 includes two third torsion spring members 61 arranged on the mounting shell 1, each of the two third torsion spring members 61 is connected to one end of a second wire 62, and each of the other ends of the two second wires 62 is provided with a pull ring 63, and the two pull rings 63 are respectively sleeved on two third wires 64, one end of the two third wires 64 are both arranged on the support plate 31, and the other ends of the two third wires 64 are both arranged on an abutment plate 65, and the abutment plate 65 is slidably connected in the mounting shell 1, and the abutment plate 65 corresponds to the position of the electric telescopic rod 21, and one end of a spring member 66 is provided on the abutment plate 65, and one end of the spring member 66 is arranged on the mounting shell 1.

[0053] Preferably, the pulling component 6 also includes a fourth torsion spring component 67 arranged on the mounting shell 1, one end of a fourth wire 68 is connected to the fourth torsion spring component 67, the other end of the fourth wire 68 passes through the interior of the mounting shell 1, one end of the fourth wire 68 located inside the mounting shell 1 passes through the abutment plate 65, and one end of the fourth wire 68 passes through the abutment plate 65 and contacts the electric telescopic rod 21. Through the setting of the pulling component 6, when the electric telescopic rod 21 drives the clamping component 3 to move downward, the spring component 66 can contract and limit the abutment plate 65, so that when the clamping component 3 grabs the titanium alloy fragments and moves upward, it can drive the electric telescopic rod 21 to slide, so that the clamping component 3 can drive the titanium alloy fragments to move above the vibrating screen.

[0054] Preferably, the pulling assembly 6 also includes four second spring telescopic parts 69 arranged on the mounting shell 1, and each of the four second spring telescopic parts 69 is provided with a clamping block 610 on the output end, and each of the four clamping blocks 610 is provided with an inclined surface. Through the cooperation of the clamping parts and the second spring telescopic parts 69, when the clamping assembly 3 completes the discharge of the material, it can drive the clamping assembly 3 back to the top of the barrel for the next grabbing.

[0055] Preferably, the reset assembly 7 includes two first limiting rails 71 arranged on the mounting shell 1, each of the two first limiting rails 71 is slidably connected to an output end of a third spring telescopic member 72, the two third spring telescopic members 72 are slidably connected to the two second limiting rails 73 respectively, and the two second limiting rails 73 respectively limit the sliding of the two third spring telescopic members 72 one by one, the two third spring telescopic members 72 are respectively connected to one end of a fifth wire 74, the other ends of the two fifth wires 74 are respectively connected to two winding shafts 75, the two winding shafts 75 are rotatably connected to the mounting shell 1, and the two winding shafts 7 5 are respectively connected to the two ends of a rotating shaft 76, a gear member 77 is provided on the rotating shaft, the gear member 77 is meshed with a gear condition 78, the gear condition 78 is slidably connected to the mounting shell 1, one end of the gear condition 78 is provided with a fourth spring telescopic member 79, the fourth spring telescopic member 79 is arranged on the mounting shell 1, and one end of the gear condition 78 away from the fourth spring telescopic member 79 passes through the outside of the mounting shell 1. The reset assembly 7 allows the two clamping hoppers 34 to be separated for loading when they reach the top of the vibrating screen, and the first limit assembly 4 allows the two clamping hoppers 34 to be continuously separated for the next grabbing.

[0056] Working principle: by starting the electric telescopic rod 21, the support plate 31 is driven to move downward, so that the connecting piece moves downward, and the two first torsion spring members 33 are driven to move downward, so that the two clamping hoppers 34 move downward, and the two first wires 42 are pulled when the clamping plate moves downward. When the two first wires 42 are pulled to the point where they can no longer be pulled, the two limit members 43 slide due to the pulling force of the first wires 42, so that the two clamping hoppers 34 are no longer limited, and the two clamping hoppers 34 are closed under the action of the two first torsion spring members 33, so that the titanium alloy crumbs in the barrel are grabbed, and then the electric telescopic rod 21 is started to reset, driving the support plate 31 to move upward, so that the titanium alloy crumbs are grabbed and moved upward, and when the support plate 31 moves upward, it contacts the two limit rods 53, driving the two limit rods 53 to move upward, so that the two limit rods 53 no longer limit the two limit blocks 22;

[0057] At the same time, the electric telescopic rod 21 drives the support plate 31 to move downward, pulling the two third wires 64, so that the abutment plate 65 slides, driving the spring member 66 to be compressed, and the abutment plate 65 slides until it contacts the inclined surfaces of the four clips, so that the four clips move, driving the four second spring telescopic members 69 to contract, and the abutment plate 65 continues to slide until it no longer contacts the four clips, so that the four second spring telescopic members 69 extend out, so that the four clips are reset, and the reset of the four clips limits the abutment plate 65;

[0058] When the two limit rods 53 no longer limit the two limit blocks 22, the fourth torsion spring 67 is wound up, driving the fourth wire 68 to be wound up, so that the electric telescopic rod 21 slides, driving the two clamping hoppers 34 to slide;

[0059] When the two clamping hoppers 34 slide to contact with the gear condition 78 and the output ends of the two third spring telescopic members 72, the gear condition 78 and the two third spring telescopic members 72 are driven to contract. At this time, the two third spring telescopic members 72 are respectively inserted into the two limiting holes. When the gear condition 78 slides, the gear member 77 is driven to rotate, so that the rotating rod rotates, and the two winding shafts 75 are driven to rotate, so that the two fifth conducting wires 74 are wound and pulled, and the two third spring telescopic members 72 are driven to slide, so that the two clamping hoppers 34 are separated and reset. When the two clamping hoppers 34 are separated and reset, they contact with the two limiting members 43, so that the two limiting members 43 slide, and under the action of the two fifth spring telescopic members 44, the two limiting members 43 are reset, so that the two limiting members 43 limit the two clamping hoppers 34, and at the same time, the titanium alloy powder falls onto the vibrating screen when the two clamping hoppers 34 are opened;

[0060] At the same time, when the electric telescopic rod 21 moves to contact with the four clamping parts, the four clamping parts move, so that the four clamping parts no longer limit the abutment plate 65, so that the spring part 66 is released, so that the electric telescopic rod 21 slides and resets. By setting an inclined surface on each of the two limit rods 53, the support plate 31 contacts the inclined surfaces of the two limit rods 53 when sliding, so that the two limit rods 53 move up, so that the two limit blocks 22 will not block the two limit blocks 22, so that the electric telescopic rod 21 can be reset for the next grab;

[0061] After the titanium alloy crumbs in the barrel are grabbed, the hydraulic rod at the bottom of the barrel is started to move the barrel upward so that the two clamping hoppers 34 grab the same amount of titanium alloy crumbs each time. When there are too few titanium alloy crumbs remaining in the barrel to be grabbed, the remaining titanium alloy crumbs in the barrel are poured into the next barrel so that the amount of titanium alloy crumbs fed to the vibrating screen each time is close, so that the vibrating screen will not affect the screening efficiency due to too much or too little titanium alloy crumbs being put in at one time.

[0062] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A method for preparing titanium alloy powder for 3D printing, characterized in that: The method comprises the following preparation steps: S1. Feed the titanium alloy raw material into a powder machine for crushing; S2, cooling the crushed titanium alloy powder; S3, collecting the cooled titanium alloy fragments; S4, the collected titanium alloy powder is sent into the vibrating screen through the grabbing structure; S5. Screening out titanium alloy powders of different finenesses through a vibrating screen; S6. Collect titanium alloy powders of different finenesses.

2. A 3D printing titanium alloy powder preparation device according to claim 1, characterized in that: The grabbing structure comprises a mounting shell (1), a driving component (2) is slidably connected inside the mounting shell (1), a clamping component (3) is provided at the output end of the driving component (2), and the driving component (2) can drive the clamping component (3) to grab the titanium alloy fragments; One end of a first limiting component (4) is arranged in the installation shell (1), and the other end of the first limiting component (4) is arranged on the clamping component (3), so that when the clamping component (3) grabs the titanium alloy powder, the first limiting component (4) can release the limiting of the clamping component (3); A second limiting component (5) is arranged in the mounting shell (1), and the second limiting component (5) can limit the driving component (2), and the clamping component (3) can trigger the second limiting component (5) to release the limiting of the sliding component when returning to its original position after grabbing the titanium alloy fragments; The mounting shell (1) is provided with a pulling assembly (6), and the pulling assembly (6) can drive the driving assembly (2) to slide; The mounting shell (1) is also provided with a reset component (7), and when the clamping component (3) slides to contact the reset component (7), the reset component (7) can drive the clamping component (3) to release the grip on the titanium alloy fragments.

3. A 3D printing titanium alloy powder preparation device according to claim 2, characterized in that: The driving assembly (2) comprises an electric telescopic rod (21) slidably connected in the mounting shell (1), an output end of the electric telescopic rod (21) extending through the outside of the mounting shell (1), two limit blocks (22) being provided on the electric telescopic rod (21), and a fixing plate (23) being fixedly provided on the electric telescopic rod (21).

4. A 3D printing titanium alloy powder preparation device according to claim 3, characterized in that: The clamping assembly (3) comprises a support plate (31) arranged on the output end of the electric telescopic rod (21), a connecting piece is arranged at the bottom of the support plate (31), a first torsion spring piece (33) is arranged on each side of the connecting piece, a clamping hopper (34) is arranged at each output end of the two first torsion spring pieces (33), and a limiting hole is arranged at the beginning of each of the two clamping hoppers (34).

5. A 3D printing titanium alloy powder preparation device according to claim 4, characterized in that: The first limiting assembly (4) comprises two second torsion spring members (41) arranged on the fixed plate (23), each of the two second torsion spring members (41) being connected to one end of a first wire (42), the other ends of the two first wires (42) both passing through the fixed plate (23), each of the ends of the two first wires (42) passing through the fixed plate (23) being connected to a limiting member (43), both of the two limiting members (43) being slidably connected to the support plate (31), both of the two limiting members (43) limiting the positions of the two clamping hoppers (34), both of the two limiting members (43) being provided with arc surfaces, and each of the two limiting members (43) being provided with two fifth spring telescopic members (44), and the four fifth spring telescopic members (44) being fixedly arranged on the support plate (31).

6. A 3D printing titanium alloy powder preparation device according to claim 5, characterized in that: The second limiting assembly (5) comprises two support rods (51) arranged inside the mounting shell (1), each of the two support rods (51) being provided with a first spring telescopic member (52), each of the output ends of the two first spring telescopic members (52) being provided with a limiting rod (53), the bottoms of the two limiting rods (53) both passing through the outside of the mounting shell (1), and the two limiting rods (53) respectively corresponding to the positions of the two limiting blocks (22).

7. A 3D printing titanium alloy powder preparation device according to claim 6, characterized in that: The pulling assembly (6) comprises two third torsion spring members (61) arranged on the mounting shell (1), one end of a second wire (62) is connected to each of the two third torsion spring members (61), the other end of each of the two second wires (62) is provided with a pull ring (63), the two pull rings (63) are respectively sleeved on two third wires (64), one end of each of the two third wires (64) is arranged on the support plate (31), the other end of each of the two third wires (64) is arranged on an abutment plate (65), the abutment plate (65) is slidably connected in the mounting shell (1), the abutment plate (65) corresponds to the position of the electric telescopic rod (21), one end of a spring member (66) is provided on the abutment plate (65), and one end of the spring member (66) is arranged on the mounting shell (1).

8. The 3D printing titanium alloy powder preparation device according to claim 7, characterized in that: The pulling assembly (6) further comprises a fourth torsion spring component (67) arranged on the mounting shell (1), one end of a fourth wire (68) being connected to the fourth torsion spring component (67), the other end of the fourth wire (68) passing through the interior of the mounting shell (1), the end of the fourth wire (68) located inside the mounting shell (1) passing through the abutment plate (65), and the end of the fourth wire (68) passing through the abutment plate (65) contacts the electric telescopic rod (21).

9. A 3D printing titanium alloy powder preparation device according to claim 8, characterized in that: The pulling assembly (6) further comprises four second spring telescopic members (69) arranged on the mounting shell (1), each of the four second spring telescopic members (69) having a clamping block (610) arranged on its output end, and each of the four clamping blocks (610) having an inclined surface arranged on it.

10. The 3D printing titanium alloy powder preparation device according to claim 9, characterized in that: The reset assembly (7) comprises two first limiting rails (71) arranged on the mounting shell (1), each of the two first limiting rails (71) being slidably connected to an output end of a third spring telescopic member (72), the two third spring telescopic members (72) being slidably connected to two second limiting rails (73) in a one-to-one correspondence, and the two second limiting rails (73) are respectively and one-to-one correspondence for limiting the sliding of the two third spring telescopic members (72), one end of each of the two third spring telescopic members (72) being connected to one end of a fifth wire (74), and the other ends of the two fifth wires (74) being respectively connected to two winding shafts (75) The two winding shafts (75) are rotatably connected in the mounting shell (1), and the two winding shafts (75) are respectively connected to the two ends of a rotating shaft (76). A gear member (77) is provided on the rotating shaft, and the gear member (77) is meshed with a gear condition (78). The gear condition (78) is slidably connected to the mounting shell (1), and a fourth spring telescopic member (79) is provided at one end of the gear condition (78). The fourth spring telescopic member (79) is provided on the mounting shell (1), and the end of the gear condition (78) away from the fourth spring telescopic member (79) passes through the outside of the mounting shell (1).

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