CN117922003A - Selective laser sintering printer - Google Patents
Selective laser sintering printer Download PDFInfo
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- CN117922003A CN117922003A CN202410328401.3A CN202410328401A CN117922003A CN 117922003 A CN117922003 A CN 117922003A CN 202410328401 A CN202410328401 A CN 202410328401A CN 117922003 A CN117922003 A CN 117922003A
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- vibrating screen
- laser sintering
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- 238000000110 selective laser sintering Methods 0.000 title claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 197
- 239000000758 substrate Substances 0.000 claims abstract description 91
- 238000007639 printing Methods 0.000 claims abstract description 63
- 238000003892 spreading Methods 0.000 claims abstract description 45
- 238000000149 argon plasma sintering Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 8
- 238000012216 screening Methods 0.000 abstract description 2
- 238000005192 partition Methods 0.000 description 9
- 239000011812 mixed powder Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Powder Metallurgy (AREA)
Abstract
The selective laser sintering printer comprises a machine table, a powder supply assembly, a spreading assembly, a laser, a printing substrate, a substrate lifting assembly, a flat pushing assembly, a vibrating screen powder assembly and a first container; the powder feeding component, the spreading component, the laser, the printing substrate, the substrate lifting component, the flat pushing component, the vibrating screen powder component and the first container are respectively arranged in the machine table, the spreading component is arranged between the powder feeding component and the printing substrate, the printing substrate is arranged at the output end of the substrate lifting component, the laser is positioned right above the printing substrate, the vibrating screen powder component is communicated with the first container, the powder feeding component is used for conveying powder to the spreading component, the spreading component is used for receiving the powder and spreading the powder on the printing substrate, the laser is used for carrying out laser sintering on the powder positioned on the printing substrate, the flat pushing component is used for flatly pushing the product and the powder to the vibrating screen powder component, and the vibrating screen powder component is used for vibrating and screening unsintered powder and conveying the unsintered powder to the first container.
Description
Technical Field
The application relates to the field of laser beam machining, in particular to a selective laser sintering printer.
Background
The selective laser sintering printer SELECTIVE LASER SINTERING PRINTER is a laser 3D printing device. The core of this technique is to melt the powder material point by a high power laser beam, and then, under control of a computer, laminate these already solidified powder flakes layer by layer according to slice data of a three-dimensional model, to finally form a complete three-dimensional object. SLS printing can be quickly converted into solid parts according to 3D CAD data in one or two hours to several days, and is suitable for manufacturing products with various complex structures.
In the conventional selective laser sintering printer, when powder is recovered, a mixture of the printed product and the excessive powder during printing is generally taken out together after the printing is completed, and the powder is separated from the mixture outside the selective laser sintering printer.
In addition, in order to reuse the recovered old powder, it is necessary to mix it with new powder before it can be used for the next printing.
In the process of taking out and separating the old powder, the powder drifts around, which wastes the powder and greatly pollutes the working environment.
Thus, there is a great need for a selective laser sintering printer that automatically recovers the powder to overcome the above-described drawbacks.
Disclosure of Invention
The application aims to provide a selective laser sintering printer capable of automatically recycling powder.
In order to achieve the purpose of marketing, the embodiment of the application provides a selective laser sintering printer which comprises a machine table, a powder supply assembly, a spreading assembly, a laser, a printing substrate, a substrate lifting assembly, a horizontal pushing assembly, a vibrating screen powder assembly and a first container; the device comprises a machine table, a powder supply assembly, a spreading assembly, a laser, a printing substrate, a substrate lifting assembly, a flat pushing assembly, a vibrating screen powder assembly and a first container, wherein the spreading assembly is arranged in the machine table, the powder supply assembly is used for conveying powder to the spreading assembly, the printing substrate is arranged at the output end of the substrate lifting assembly, the substrate lifting assembly is used for driving the substrate to vertically lift, the laser is located right above the printing substrate, the spreading assembly is used for receiving the powder conveyed by the powder supply assembly and spreading the powder on the printing substrate, the laser is used for carrying out laser sintering on the powder on the printing substrate, the flat pushing assembly is used for flat pushing the printed product and residual powder to the position of the vibrating screen powder assembly, the vibrating screen powder assembly is communicated with the first container, and the vibrating screen powder assembly is used for vibrating screen unsintered powder and conveying the unsintered powder to the first container.
Preferably, the powder supply assembly is further in communication with the first container, and the powder supply assembly is further configured to deliver powder into the first container.
Preferably, the powder supply assembly is located right above the vibrating screen powder assembly, the vibrating screen powder assembly is located right above the first container, the powder supply assembly is communicated with the first container through a first pipeline, the vibrating screen powder assembly is communicated with the first container through a second pipeline, a first weight metering valve is arranged in the first pipeline, and a second weight metering valve is arranged in the second pipeline.
Preferably, the selective laser sintering printer according to the embodiment of the present application further includes a lifting and disengaging assembly disposed in the machine, wherein the first container is disposed at an output end of the lifting and disengaging assembly, and the lifting and disengaging assembly is configured to drive the first container to move downward so as to be out of communication with the powder supply assembly and the vibrating screen assembly.
Preferably, the selective laser sintering printer according to the embodiment of the present application further includes a rotation driver disposed in the machine, the rotation driver is disposed at an output end of the lifting separation assembly, the first container is disposed at an output end of the rotation driver, and the rotation driver is configured to drive the first container to rotate, so as to mix the powder conveyed by the vibrating screen powder assembly with the powder conveyed by the powder supply assembly.
Preferably, the selective laser sintering printer according to the embodiment of the present application further includes a second container, wherein the discharge port of the second container is located beside the discharge port of the powder supply assembly, and the spreading assembly is further configured to receive the powder conveyed from the discharge port of the second container and spread the powder on the printing substrate.
Preferably, the first container and the second container are each detachably connected to the machine, and the first container and the second container are configured to be interchangeable.
Preferably, the flat pushing assembly comprises a flat pushing driver, a flat pushing plate, a first connecting rod, a second connecting rod, a first sliding block and a second sliding block, wherein one end of the first connecting rod and one end of the second connecting rod are both pivoted at the same position on the first sliding block, the first sliding block is vertically and slidably arranged on the flat pushing plate, the other end of the first connecting rod is pivoted on the machine table, the other end of the second connecting rod is pivoted on the second sliding block, the second sliding block is vertically and slidably arranged on the machine table, the second sliding block is arranged at the output end of the flat pushing driver, and the flat pushing driver can selectively drive the second sliding block to slide close to the other end of the first connecting rod so as to link the flat pushing plate to translate towards the direction close to the vibrating screen powder assembly.
Preferably, at least two of the horizontal pushing assemblies are arranged in parallel.
Preferably, the selective laser sintering printer according to the embodiment of the present application further includes a partition door, the partition door is movably connected to the machine table, the substrate lifting assembly is disposed on one side of the partition door, and the vibrating screen powder assembly is disposed on the other side of the partition door.
Compared with the prior art, the selective laser sintering printer comprises a machine table, a powder supply assembly, a spreading assembly, a laser, a printing substrate, a substrate lifting assembly, a flat pushing assembly, a vibrating screen powder assembly and a first container; the laser comprises a powder supply assembly, a spreading assembly, a laser, a printing substrate, a substrate lifting assembly, a flat pushing assembly, a vibrating screen powder assembly and a first container, wherein the spreading assembly is arranged between the powder supply assembly and the printing substrate, the powder supply assembly is used for conveying powder to the spreading assembly, the printing substrate is arranged at the output end of the substrate lifting assembly, the substrate lifting assembly is used for driving the substrate to vertically lift, the laser is positioned right above the printing substrate, the spreading assembly is used for receiving the powder conveyed by the powder supply assembly and spreading the powder on the printing substrate, the laser is used for carrying out laser sintering on the powder on the printing substrate, the flat pushing assembly is used for horizontally pushing the printed product and residual powder to the position of the vibrating screen powder assembly, the vibrating screen powder assembly is communicated with the first container, and the vibrating screen powder assembly is used for vibrating screen unsintered powder and conveying the unsintered powder to the first container, so that the laser-free-standing laser-type powder recycling printer can be used for preventing the powder from being scattered.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a selective laser sintering printer according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
First, in the description of the embodiments of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Second, the terms "first," "second," "third," and the like are used merely to distinguish between the descriptions, the unordered, the light and heavy, and the like, and are not to be construed as indicating or implying relative importance, and features defining "first," "second," and the like may explicitly or implicitly include one or more such features.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. For example, "horizontal" merely means that its direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined; the term "in a direction" does not mean that it is required to be absolutely parallel to the direction, but may be offset, i.e. have a component in the direction.
Furthermore, in the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the device can be mechanically connected, electrically connected, electromagnetically connected and even in communication; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In addition, "and/or" in the present application, such as "feature 1 and/or feature 2", means that "feature 1" may be used alone, and "feature 2" may be used alone, and "feature 1" and "feature 2" may be used alone, in these three cases. "and/or" in the present application, such as "feature 1 and/or feature 2", means that "feature 1" alone, and "feature 2" alone, and "feature 1" plus "feature 2" alone, are all three cases.
Referring to fig. 1, a selective laser sintering printer 1 according to an embodiment of the present application includes a machine 11, a powder supply assembly 21, a spreading assembly 31, a laser 32, a printing substrate 35, a substrate lifting assembly 36, a vibrating screen assembly 41, and a first container 42; the powder supply assembly 21, the spreading assembly 31, the laser 32, the printing substrate 35, the substrate lifting assembly 36, the horizontal pushing assembly 37, the vibrating screen powder assembly 41 and the first container 42 are respectively arranged in the machine table 11 to provide support and corresponding tightness for the powder supply assembly 21, the spreading assembly 31, the laser 32, the printing substrate 35, the substrate lifting assembly 36, the horizontal pushing assembly 37, the vibrating screen powder assembly 41 and the first container 42; the paving component 31 is arranged between the powder supply component 21 and the printing substrate 35, so that the powder supply component 21 conveys powder to the paving component 31; the printing substrate 35 is arranged at the output end of the substrate lifting assembly 36, so that the substrate lifting assembly 36 drives the substrate to vertically lift; the laser 32 is positioned right above the printing substrate 35 so that the spreading component 31 receives new powder conveyed by the powder supply component 21 and spreads the new powder on the printing substrate 35, the laser 32 performs laser sintering on the powder positioned on the printing substrate 35, and the flat pushing component 37 horizontally pushes the printed product and residual old powder to the vibrating screen powder component 41; the vibrating screen assembly 41 communicates with the first container 42 so that the vibrating screen assembly 41 shakes out unsintered old powder and conveys it into the first container 42. More specifically, the following is:
As shown in fig. 1, the powder supply assembly 21 is also in communication with the first container 42 such that the powder supply assembly 21 delivers new powder into the first container 42 to mix with old powder in the first container 42 for reuse.
As shown in fig. 1, the powder supply assembly 21 is located directly above the vibrating screen powder assembly 41, the vibrating screen powder assembly 41 is located directly above the first container 42, the powder supply assembly 21 is communicated with the first container 42 through a first pipeline 43, the vibrating screen powder assembly 41 is communicated with the first container 42 through a second pipeline 44, a first weight metering valve 43a is arranged in the first pipeline 43, and a second weight metering valve 44a is arranged in the second pipeline 44, so that the weight of new powder entering the first container 42 each time through the powder supply assembly 21 is controlled through the first weight metering valve 43a, and the weight of old powder screened out each time through the vibrating screen powder assembly 41 is controlled through the second weight metering valve 44a, so that the specific gravity of the new powder and the old powder in the first container 42 can be controlled, and the specific gravity requirement of reuse is ensured.
As shown in fig. 1, the selective laser sintering printer 1 according to the embodiment of the present application further includes a lifting/lowering assembly 45 disposed in the machine 11, and the first container 42 is disposed at an output end of the lifting/lowering assembly 45, so that the lifting/lowering assembly 45 drives the first container 42 to move downward to be out of communication with the powder supply assembly 21 and the vibrating screen assembly 41.
As shown in fig. 1, the selective laser sintering printer 1 according to the embodiment of the present application further includes a rotation driver 46 disposed in the machine 11, the rotation driver 46 is disposed at an output end of the lift-off assembly 45, and the first container 42 is disposed at an output end of the rotation driver 46, so that the rotation driver 46 drives the first container 42 to rotate, thereby mixing the powder conveyed by the vibrating screen assembly 41 with the powder conveyed by the powder supply assembly 21. Specifically, the output end of the rotation driver 46 is provided with a clamping bracket 47, so that the first container 42 and the second container 22 are detachably clamped to the output end of the rotation driver 46, but not limited thereto.
As shown in fig. 1, the selective laser sintering printer 1 according to the embodiment of the present application further includes a second container 22, where a discharge port of the second container 22 is located beside a discharge port of the powder supply assembly 21, so that the spreading assembly 31 receives the mixed powder delivered from the discharge port of the second container 22 and spreads the mixed powder on the printing substrate 35; preferably, the selective laser sintering printer 1 according to the embodiment of the present application further includes a feeding roller 23 rotatably disposed in the machine 11, where the feeding roller 23 is located at a position where the discharge port of the second container 22 and the discharge port of the powder supply assembly 21 meet, so that the feeding roller 23 quantitatively conveys new powder and/or old powder to the paving assembly 31 in order, but not limited thereto.
As shown in fig. 1, the spreading assembly 31 includes a spreading roller 311 and a third linear module 312, and the spreading roller 311 is disposed at an output end of the third linear module 312, so that the third linear module 312 drives the spreading roller 311 to translate toward the printing substrate 35.
As shown in fig. 1, the selective laser sintering printer 1 according to the embodiment of the present application further includes a laser galvanometer 33 for laser sintering in combination with the laser 32.
As shown in fig. 1, the selective laser sintering printer 1 according to the embodiment of the present application further includes a heating lamp 34 to preheat and/or heat the printing position, thereby improving the powder sintering effect.
As shown in fig. 1, the first container 42 and the second container 22 are each detachably connected to the machine 11, and the first container 42 and the second container 22 are configured to be exchangeable with each other, thereby facilitating the disassembly and replacement of the first container 42 storing the full mixed powder and the empty second container 22 for recycling; preferably, the first container 42 and the second container 22 are provided with a card matching structure so as to be clamped to the machine 11 and the lifting and separating assembly 45, so that the first container 42 and the second container 22 can be replaced conveniently, but not limited to the foregoing.
As shown in fig. 1, the flat pushing assembly 37 includes a flat pushing driver (not shown), a flat pushing plate 371, a first connecting rod 372, a second connecting rod 373, a first slider 374 and a second slider 375, wherein one end of the first connecting rod 372 and one end of the second connecting rod 373 are both pivoted to the same position on the first slider 374, the first slider 374 is vertically and slidably arranged on the flat pushing plate 371, the other end of the first connecting rod 372 is pivoted to the machine 11, the other end of the second connecting rod 373 is pivoted to the second slider 375, the second slider 375 is vertically and slidably arranged on the machine 11, and the second slider 375 is arranged at the output end of the flat pushing driver (not shown), so that the flat pushing driver (not shown) can selectively drive the second slider 375 to slide close to the other end of the first connecting rod 372, thereby linking the flat pushing plate 371 to translate towards the direction close to the vibrating screen assembly 41, and pushing the product and old powder on the printing substrate 35 onto the vibrating screen assembly 41; preferably, at least two of the horizontal pushing assemblies 37 are arranged in parallel to ensure that pushing is smoother.
For example, the horizontal pushing driver is a cylinder or a linear motor module, but not limited thereto.
For example, the flat pushing plate 371 is provided with a vertically extending sliding slot, and the first slider 374 is slidingly disposed in the sliding slot.
As shown in fig. 1, the selective laser sintering printer 1 according to the embodiment of the present application further includes a partition door 12, the substrate lifting assembly 36 is disposed at one side of the partition door 12, and the vibrating screen powder assembly 41 is disposed at the other side of the partition door 12, so as to separate the printing substrate 35 and the vibrating screen powder assembly 41 during the laser sintering printing process; the partition door 12 is movably connected to the machine 11 so that the partition door 12 opens to provide clearance when the flat push assembly 37 pushes product and old powder on the print substrate 35 to the vibrating screen powder assembly 41.
As shown in fig. 1, the substrate lifting assembly 36 includes a first sliding rail 361 and a first linear module 362, the printing substrate 35 is slidably disposed on the first sliding rail 361, and the printing substrate 35 is disposed at an output end of the first linear module 362, so that the printing substrate 35 is driven by the first linear module 362 to vertically lift along the first sliding rail 361.
As shown in fig. 1, the vibrating screen powder assembly 41 includes a vibrating screen 411 and a vibrating motor 412, wherein the vibrating screen 411 is disposed at an output end of the vibrating motor 412, so that the vibrating screen 411 can vibrate under the driving of the vibrating motor 412, thereby realizing screening.
As shown in fig. 1, the lifting and separating assembly 45 includes a second sliding rail 451 and a second linear module 452, one end of the first container 42 is slidably disposed on the second sliding rail 451, and one end of the first container 42 is connected to an output end of the second linear module 452, so that the first container 42 can vertically lift along the second sliding rail 451 under the driving of the second linear module 452.
As shown in fig. 1, an illumination lamp 48 is further disposed in the machine 11 to illuminate, thereby facilitating observation.
As shown in fig. 1, a filter screen 49 is further provided on the machine 11 to filter the powder.
As shown in fig. 1, the powder supplying unit 21 is a chute.
The operation of the selective laser sintering printer 1 according to the embodiment of the present application is described below with reference to the accompanying drawings:
First, the heating lamp 34 preheats the printing space; secondly, the spreading roller 311 is driven by the third linear module 312 to translate to a position where the discharge hole of the second container 22 and the discharge hole of the powder supply assembly 21 are connected, new powder in the powder supply assembly 21 or mixed powder in the second container 22 falls into the spreading roller 311 through the feeding roller 23, and the spreading roller 311 continues to translate to the printing substrate 35 positioned at the highest position under the driving of the third linear module 312, and meanwhile, the powder is scattered on the printing substrate 35; then, the laser 32 sinters the powder with the aid of the laser vibrating mirror 33, then the printing substrate 35 is driven to descend by the substrate lifting assembly 36, the spreading roller 311 continuously spreads the powder on the printing substrate 35, the laser 32 sinters the powder again with the aid of the laser vibrating mirror 33, and the process is repeated until the lowest position of the printing substrate 35 descends, at this time, the separation hatch 12 is opened, the product and the powder on the printing substrate 35 are translated onto the vibrating screen powder assembly 41 under the pushing of the horizontal pushing assembly 37, and then the vibrating screen powder assembly 41 vibrates and screens out the powder, and the old powder enters the second pipeline 44.
In addition, when the old powder entering the second duct 44 reaches a certain weight, the second weight metering valve 44a is opened, and the old powder falls into the first container 42; the new powder added to the powder supply assembly 21 will partially enter the first conduit 43, and after a certain weight is reached, the first weight metering valve 43a is opened and the powder falls into the first container 42; when the mixed powder in the first container 42 reaches a certain weight or under a certain specification, the lifting and falling off assembly 45 drives the first container 42 to slide downwards to separate from the first pipeline 43 and the second pipeline 44, then the rotation driver 46 drives the first container 42 to swing so as to fully mix the new powder and the old powder, and finally the first container 42 and the second container 22 can be taken out manually and the positions of the two containers are interchanged.
The number of times of opening the first weight metering valve 43a described above is maintained at a fixed ratio with respect to the second weight metering valve 44a, thereby ensuring the specific gravity of the new powder and the old powder in the first container 42.
Compared with the prior art, the selective laser sintering printer 1 of the embodiment of the application comprises a machine table 11, a powder supply assembly 21, a spreading assembly 31, a laser 32, a printing substrate 35, a substrate lifting assembly 36, a vibrating screen powder assembly 41 and a first container 42; the powder supply assembly 21, the spreading assembly 31, the laser 32, the printing substrate 35, the substrate lifting assembly 36, the flat pushing assembly 37, the vibrating screen powder assembly 41 and the first container 42 are respectively arranged in the machine table 11, the spreading assembly 31 is arranged between the powder supply assembly 21 and the printing substrate 35, the powder supply assembly 21 is used for conveying powder to the spreading assembly 31, the printing substrate 35 is arranged at the output end of the substrate lifting assembly 36, the substrate lifting assembly 36 is used for driving the substrate to vertically lift, the laser 32 is positioned right above the printing substrate 35, the spreading assembly 31 is used for receiving the powder conveyed by the powder supply assembly 21 and spreading the powder on the printing substrate 35, the laser 32 is used for carrying out laser sintering on the powder positioned on the printing substrate 35, the flat pushing assembly 37 is used for horizontally pushing the printed product and residual powder to the vibrating screen powder assembly 41, the vibrating screen powder assembly 41 is communicated with the first container 42, and the vibrating screen powder assembly 41 is used for vibrating and conveying the unsintered powder to the first container 42, so that the selective sintering printer 1 of the embodiment of the application can avoid the powder from scattering all around.
The foregoing disclosure is illustrative of the present application and is not to be construed as limiting the scope of the application, but is for the purpose of providing additional advantages of the application, including those that fall within the spirit and scope of the application.
Claims (10)
1. The selective laser sintering printer is characterized by comprising a machine table, a powder supply assembly, a spreading assembly, a laser, a printing substrate, a substrate lifting assembly, a flat pushing assembly, a vibrating screen powder assembly and a first container; the device comprises a machine table, a powder supply assembly, a spreading assembly, a laser, a printing substrate, a substrate lifting assembly, a flat pushing assembly, a vibrating screen powder assembly and a first container, wherein the spreading assembly is arranged in the machine table, the powder supply assembly is used for conveying powder to the spreading assembly, the printing substrate is arranged at the output end of the substrate lifting assembly, the substrate lifting assembly is used for driving the substrate to vertically lift, the laser is located right above the printing substrate, the spreading assembly is used for receiving the powder conveyed by the powder supply assembly and spreading the powder on the printing substrate, the laser is used for carrying out laser sintering on the powder on the printing substrate, the flat pushing assembly is used for flat pushing the printed product and residual powder to the position of the vibrating screen powder assembly, the vibrating screen powder assembly is communicated with the first container, and the vibrating screen powder assembly is used for vibrating screen unsintered powder and conveying the unsintered powder to the first container.
2. The selective laser sintering printer according to claim 1, wherein the powder supply assembly is further in communication with the first container, the powder supply assembly further configured to deliver powder into the first container.
3. The selective laser sintering printer according to claim 2, wherein the powder supply assembly is located directly above the vibrating screen powder assembly, the vibrating screen powder assembly is located directly above the first container, the powder supply assembly is communicated with the first container through a first pipeline, the vibrating screen powder assembly is communicated with the first container through a second pipeline, a first weight metering valve is arranged in the first pipeline, and a second weight metering valve is arranged in the second pipeline.
4. The selective laser sintering printer according to claim 2, further comprising a lift-off assembly disposed within the machine, the first container disposed at an output end of the lift-off assembly, the lift-off assembly configured to drive the first container to move downward to disengage from communication with the powder supply assembly and the vibrating screen assembly.
5. The selective laser sintering printer according to claim 4, further comprising a rotary driver disposed in the machine table, the rotary driver being disposed at an output end of the lift-off assembly, the first container being disposed at an output end of the rotary driver, the rotary driver being configured to drive the first container to rotate so as to mix powder conveyed from the vibrating screen assembly with powder conveyed from the powder supply assembly.
6. The selective laser sintering printer according to claim 4, further comprising a second container, wherein the outlet of the second container is located beside the outlet of the powder supply assembly, and the spreading assembly is further configured to receive the powder delivered from the outlet of the second container and spread the powder on the printing substrate.
7. The selective laser sintering printer according to claim 6, wherein the first container and the second container are each detachably connected to the machine, the first container and the second container being configured to be interchangeable.
8. The selective laser sintering printer according to claim 6, wherein the flat pushing assembly comprises a flat pushing driver, a flat pushing plate, a first connecting rod, a second connecting rod, a first sliding block and a second sliding block, wherein one end of the first connecting rod and one end of the second connecting rod are both pivoted at the same position on the first sliding block, the first sliding block is vertically and slidably arranged on the flat pushing plate, the other end of the first connecting rod is pivoted on the machine table, the other end of the second connecting rod is pivoted on the second sliding block, the second sliding block is vertically and slidably arranged on the machine table, the second sliding block is arranged at the output end of the flat pushing driver, and the flat pushing driver can selectively drive the second sliding block to slide close to the other end of the first connecting rod so as to drive the flat pushing plate to translate towards a direction close to the vibrating screen assembly.
9. The selective laser sintering printer according to claim 8, wherein the flat push assembly is arranged in parallel with at least two.
10. The selective laser sintering printer according to claim 1, further comprising a compartment door movably connected to the machine table, wherein the substrate lifting assembly is disposed on one side of the compartment door and the vibrating screen assembly is disposed on the other side of the compartment door.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410328401.3A CN117922003B (en) | 2024-03-21 | 2024-03-21 | Selective Laser Sintering Printer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410328401.3A CN117922003B (en) | 2024-03-21 | 2024-03-21 | Selective Laser Sintering Printer |
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| CN117922003B CN117922003B (en) | 2024-06-21 |
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