CN115056484A - Quantitative adjustable 3D prints and spreads powder structure - Google Patents
Quantitative adjustable 3D prints and spreads powder structure Download PDFInfo
- Publication number
- CN115056484A CN115056484A CN202210639555.5A CN202210639555A CN115056484A CN 115056484 A CN115056484 A CN 115056484A CN 202210639555 A CN202210639555 A CN 202210639555A CN 115056484 A CN115056484 A CN 115056484A
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- China
- Prior art keywords
- baffle
- rotor
- printing
- cowl
- adjustable
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000843 powder Substances 0.000 title claims abstract description 45
- 238000010146 3D printing Methods 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000010410 dusting Methods 0.000 claims 6
- 238000007639 printing Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 8
- 239000004576 sand Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
Abstract
The invention relates to a quantitative adjustable 3D printing powder laying structure, which comprises a storage box and a rotor; the storage box comprises a front baffle, a rear baffle and a bottom baffle; the front baffle and the rear baffle are arranged at intervals, the distance between the front baffle and the rear baffle is gradually reduced, and the bottom baffle and the bottom end of the front baffle are fixed in a sealing manner, so that a storage tank is formed; the bottom end of the front baffle is lower than the bottom end of the rear baffle, so that a gap is formed between the bottom end of the rear baffle and the upper surface of the bottom baffle; the rotor is installed in the clearance department between backplate bottom and bottom baffle upper surface, and the minimum point of rotor is higher than bottom baffle upper surface and then forms the feed opening, and the material in the stock chest is piled up at the feed opening, realizes the unloading through rotating the rotor to speed through the rotational speed control unloading of adjustment rotor. The invention sends out the material through the rotation of the rotor, realizes the quantitative powder laying, has more uniform powder laying, improves the printing quality, changes the blanking speed through adjusting the rotation speed of the rotor, and has more convenient operation.
Description
Technical Field
The invention belongs to the technical field of 3D printing, and particularly relates to a quantitative adjustable 3D printing powder laying structure.
Background
3D Printing is one of rapid prototyping technologies, and is a technology for constructing an object by using a powder material (powder for short) and Printing layer by layer on the basis of a digital model file.
The equipment for realizing the 3D printing technology is called powder 3D printing equipment, a powder spreading device used by the powder 3D printing equipment generally freely falls onto a printing platform by utilizing the gravity of powder, and leakage phenomena with different degrees exist in the printing process, so that the printing cost is increased, and the stability of the equipment is influenced; some powder spreading devices make powder fall and spread on a workbench by vibration, the sand falling mode cannot accurately control the sand falling amount, and the size of the instant powder falling amount cannot be ensured to be uniform, so that the difference of the precision, the surface quality and the like of a printed product is large; the sand discharging speed of each powder laying structure cannot be adjusted, and the powder laying device cannot be suitable for printing of various products.
Disclosure of Invention
The invention provides a quantitative adjustable 3D printing powder laying structure, which aims to solve the problems that the traditional powder laying device cannot accurately control the sand laying speed, so that the sand laying is not uniform, the sand laying speed cannot be adjusted and the like.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the invention relates to a quantitative adjustable 3D printing powder laying structure, which comprises a storage box and a rotor; the storage box comprises a front baffle, a rear baffle and a bottom baffle; the front baffle and the rear baffle are arranged at intervals, the distance between the front baffle and the rear baffle is gradually reduced, and the bottom baffle is sealed and fixed with the bottom end of the front baffle to form a storage tank; the bottom end of the front baffle is lower than the bottom end of the rear baffle, so that a gap is formed between the bottom end of the rear baffle and the upper surface of the bottom baffle; the rotor install in the clearance department between backplate bottom and bottom baffle upper surface, the minimum point of rotor is higher than bottom baffle upper surface and then forms the feed opening, the material in the stock chest is piled up at the feed opening, realizes the unloading through rotating the rotor to speed through the rotational speed control unloading of adjustment rotor.
Preferably, the storage box further comprises an arc-shaped baffle, the arc-shaped baffle is fixed with the rear baffle in a sealing mode, an opening of the arc-shaped baffle faces the front baffle, an inner arc of the arc-shaped baffle is matched with an outer ring of the rotor, the upper portion of the arc-shaped baffle covers the highest point of the rotor, a gap exists between the arc-shaped baffle and the front baffle, and a gap exists between the bottom end of the arc-shaped baffle and the rear end of the bottom baffle.
Preferably, the upper end of the arc-shaped baffle is welded with the rear side face of the rear baffle, or the bottom end of the rear baffle is welded with the outer side face of the arc-shaped baffle.
Preferably, the outer ring of the rotor is provided with a sawtooth structure.
Preferably, the outer ring of the rotor is formed with a pattern structure by knurling.
Preferably, the outer ring of the rotor is wrapped with a plastic layer for improving friction.
Preferably, the outer ring of the rotor is provided with a plurality of grooves arranged along the length direction of the rotor, and the grooves are semicircular grooves or rectangular grooves.
Preferably, a vibration mechanism is mounted on the front baffle.
Preferably, the bottom baffle is arranged at the bottom of the front baffle through a connecting piece; the connecting piece is provided with a first waist hole and is fixed with the front baffle through a bolt penetrating through the first waist hole; the bottom baffle is provided with a second waist hole and is fixed with the connecting piece through a bolt penetrating through the second waist hole.
Preferably, the bottom baffles are arranged in parallel; or the bottom baffle inclines downwards from front to back, and the inclination angle is 0-40 degrees.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
1. the quantitative adjustable 3D printing powder spreading structure comprises a storage box and a rotor, wherein the storage box comprises a front baffle, a rear baffle and a bottom baffle, the lowest point of the rotor is higher than the upper surface of the bottom baffle to form a feed opening, the bottom of the storage box is the bottom baffle used for blocking materials from falling, the materials are prevented from falling freely, the materials are accumulated at the position of the feed opening under the condition that the rotor does not rotate, the materials are sent out through the rotation of the rotor in the powder spreading process, the quantitative powder spreading is realized, the powder spreading is more uniform, and the 3D printing quality is improved.
2. The quantitative adjustable 3D printing powder spreading structure is characterized in that a rotor is arranged in the storage box, materials are sent out through rotation of the rotor in the powder spreading process, the blanking speed can be changed by adjusting the rotation speed of the rotor, the thickness of each layer of powder layer is further changed, and the operation is more convenient.
3. The invention relates to a quantitative adjustable 3D printing powder spreading structure which comprises a storage box and a rotor, wherein a bottom baffle of the storage box is installed at the bottom of a front baffle through a connecting piece, a first waist hole is formed in the connecting piece, the connecting piece is fixed with the front baffle through a bolt penetrating through the first waist hole, a second waist hole is formed in the bottom baffle, the bottom baffle is fixed with the connecting piece through a bolt penetrating through the second waist hole, and according to materials with different particle sizes, the width of a discharging port is adjusted to be suitable for the materials with various particle sizes by adjusting the position of the bottom baffle up, down, front and back.
Drawings
Fig. 1 is a schematic structural diagram of a quantitative adjustable 3D printing powder laying structure according to embodiment 1;
FIG. 2 is a perspective view of a rotor in embodiment 1;
FIG. 3 is a schematic diagram of the front-to-back operation of the quantitatively adjustable 3D printing powder laying structure according to embodiment 1;
FIG. 4 is a schematic diagram of the back-to-front operation of the quantitatively adjustable 3D printing powder laying structure according to embodiment 1;
FIG. 5 is a schematic diagram of blanking during use of a quantitative adjustable 3D printing powder laying structure;
FIG. 6 is a schematic structural diagram of a quantitative adjustable 3D printing powder laying structure according to embodiment 2;
FIG. 7 is a schematic structural diagram of a quantitative adjustable 3D printing powder laying structure according to embodiment 3;
FIG. 8 is a perspective view of a rotor in embodiment 4;
FIG. 9 is a perspective view of a rotor in embodiment 5;
FIG. 10 is a perspective view of a rotor with semicircular grooves according to embodiment 6;
FIG. 11 is a perspective view of a rotor with rectangular grooves according to embodiment 6;
FIG. 12 is a schematic structural diagram of a quantitative adjustable 3D printing powder laying structure according to example 7;
fig. 13 is a schematic diagram of the front-to-back operation of the quantitatively adjustable 3D printing powder laying structure in embodiment 8.
Illustration of the drawings: 1-a stock storage tank, 2-a rear baffle, 3-a front baffle, 4-a rotor, 41-a sawtooth structure, 42-a plastic layer, 43-a pattern structure, 44-a groove, 5-a bottom baffle, 51-a second waist hole, 6-a feed opening, 7-a connecting piece, 71-a first waist hole, 8-a bolt, 9-a vibration mechanism and 10-an arc baffle.
Detailed Description
In order to further understand the content of the present invention, the present invention is described in detail with reference to the following examples, which are provided for illustrating the present invention but not for limiting the scope of the present invention.
Example 1
Referring to fig. 1, the 3D printing powder spreading structure with adjustable quantification according to the present embodiment includes a storage box and a rotor 4; the storage box comprises a front baffle 3, a rear baffle 2 and a bottom baffle 5. The front baffle 3 and the rear baffle 2 are arranged at intervals, wherein the front baffle 3 is vertically arranged, the rear baffle 2 is obliquely arranged, the distance between the front baffle 3 and the rear baffle 2 is gradually reduced, the bottom baffle 5 is horizontally arranged, and the bottom baffle 5 and the bottom end of the front baffle 3 are sealed and fixed to form a storage tank 1; preceding baffle 3's bottom be less than backplate 2's bottom, and then form the clearance between backplate 2's bottom and 5 upper surfaces of bottom baffle, rotor 4 installs the clearance department between backplate 2 bottom and 5 upper surfaces of bottom baffle, rotor 4's minimum point is higher than 5 upper surfaces of bottom baffle, the difference in height is according to the particle size of material, comprehensive factors such as mobility decide, and then form feed opening 6, the material in the stock chest 1 is piled up at feed opening 6, realize the unloading through anticlockwise rotation rotor 4, and the speed of rotational speed control unloading through adjustment rotor 4. Referring to fig. 2, the outer ring of the rotor 4 in this embodiment is coated with a friction enhancing plastic layer 42.
Referring to fig. 3 and 5, when adopting the above-mentioned ration adjustable 3D to print and spread powder structure, material (sand) storage is in stock chest 1, because the clearance of feed opening 6 is very little, when feed opening 6 has piled up more material, the material can't be followed feed opening 6 and exported, when driving rotor 4 anticlockwise rotation through motor (not drawn in the figure), send the feed opening 6 through the friction between rotor 4 and the material with the material, and simultaneously, whole 3D prints and spreads powder structure from the front to back at the uniform velocity and move, and then lays a layer of material. Therefore, through the rotational speed that changes rotor 4, can adjust the unloading speed of material to the unloading quantity in every unit interval of accurate control, and then the thickness that makes every layer of material lay is more even, improves and prints the quality.
Of course, in the process of laying the material, the 3D printing powder laying structure can also move at a constant speed from back to front as shown in fig. 4.
Example 2
Referring to fig. 6, the present embodiment is different from embodiment 1 only in that: the storage box of powder structure is spread in 3D printing that this embodiment relates to still includes cowl 10, cowl 10 with backplate 2 sealed fixed, cowl 10's opening towards preceding baffle 3, cowl 10's inner arc and rotor outer lane cooperation, cowl 10's upper portion covers rotor 4's peak, and there is the clearance on cowl 10 along the front side that is located rotor 4 peak promptly, between cowl 10 and the preceding baffle 3, there is the clearance bottom and bottom baffle 5's rear end. In this embodiment, the upper end of cowl 10 is welded to the rear side of tailgate 2, and then cowl 10 is fixed to tailgate 2.
The present embodiment provides a curved baffle 10 to prevent material from leaking out of the upper rear of the rotor 4.
Example 3
Referring to fig. 7, this embodiment is different from embodiment 2 only in that: in this embodiment, the bottom of backplate 2 and the welding of cowl 10 lateral surface, and then fixed cowl 10 and backplate 2.
Example 4
Referring to fig. 8, the present embodiment is different from embodiment 1 only in the structure of the rotor 4, and the outer ring of the rotor 4 is provided with the serration structure 41.
Example 5
Referring to fig. 9, the present embodiment is different from embodiment 1 only in the structure of the rotor 4, and in the present embodiment, the outer ring of the rotor 4 is formed with a pattern structure 43 by knurling.
Example 6
Compared with embodiment 1, the present embodiment is different only in the structure of the rotor 4, in the present embodiment, the outer ring of the rotor 4 is provided with a plurality of grooves 44 arranged along the length direction of the rotor 4, and the grooves 44 may be semicircular grooves as shown in fig. 10 or rectangular grooves as shown in fig. 11.
Example 7
Referring to fig. 12, the present embodiment is different from embodiment 1 only in that: bottom baffle 5 downward sloping from the front to the back in this embodiment, inclination are between 0 ~ 40, and this embodiment more is applicable to the relatively poor material of mobility and uses, sets up through the 5 slopes of bottom baffle to the output of material when making things convenient for rotor 4 to rotate.
Example 8
Referring to fig. 13, in this embodiment, a vibration mechanism 9 and an adjusting mechanism are added on the basis of embodiment 2, the vibration mechanism 9 may be an ultrasonic vibrator, an air hammer or an electric hammer, and the vibration mechanism 9 is installed on the front baffle 3, so that the material in the storage tank flows down more smoothly. Adjustment mechanism set up in the front between baffle 3 and bottom baffle 5, bottom baffle 5 passes through connecting piece 7 and installs the bottom of baffle 3 in the front promptly, be equipped with first waist hole 71 on the connecting piece 3, connecting piece 7 is fixed with preceding baffle 3 through the bolt 8 that runs through first waist hole 71, be equipped with second waist hole 51 on the bottom baffle 5, bottom baffle 5 is fixed with connecting piece 7 through the bolt that runs through second waist hole 51, according to the material of different particle diameters, through the position of upper and lower front and back adjustment bottom baffle, and then the width of adjustment feed opening is in order to be fit for the material of various particle diameters.
The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. The utility model provides a ration adjustable 3D prints shop's powder structure which characterized in that: the device comprises a storage box and a rotor; the storage box comprises a front baffle, a rear baffle and a bottom baffle; the front baffle and the rear baffle are arranged at intervals, the distance between the front baffle and the rear baffle is gradually reduced, and the bottom baffle and the bottom end of the front baffle are fixed in a sealing manner, so that a storage tank is formed; the bottom end of the front baffle is lower than the bottom end of the rear baffle, so that a gap is formed between the bottom end of the rear baffle and the upper surface of the bottom baffle; the rotor install in the clearance department between backplate bottom and bottom baffle upper surface, the minimum point of rotor is higher than bottom baffle upper surface and then forms the feed opening, the material in the stock chest is piled up at the feed opening, realizes the unloading through rotating the rotor to speed through the rotational speed control unloading of adjustment rotor.
2. The quantitatively adjustable 3D printing dusting structure of claim 1, characterized in that: the storage box still include cowl, cowl with the backplate sealed fixed, cowl's opening baffle forward, cowl's inner arc and rotor outer lane cooperation, cowl's upper portion covers the peak of rotor, there is the clearance between cowl and the preceding baffle, there is the clearance bottom and the rear end of bottom baffle of cowl.
3. The quantitatively adjustable 3D printing dusting structure of claim 2, characterized in that: the upper end of the arc-shaped baffle plate is welded with the rear side face of the rear baffle plate, or the bottom end of the rear baffle plate is welded with the outer side face of the arc-shaped baffle plate.
4. The quantitatively adjustable 3D printing powder laying structure according to claim 1, characterized in that: the outer ring of the rotor is provided with a sawtooth structure.
5. The quantitatively adjustable 3D printing dusting structure of claim 1, characterized in that: the outer ring of the rotor forms a pattern structure through knurling treatment.
6. The quantitatively adjustable 3D printing powder laying structure according to claim 1, characterized in that: the outer ring of the rotor is wrapped with a plastic layer for improving friction force.
7. The quantitatively adjustable 3D printing dusting structure of claim 1, characterized in that: the outer ring of the rotor is provided with a plurality of grooves arranged along the length direction of the rotor, and the grooves are semicircular grooves or rectangular grooves.
8. The quantitatively adjustable 3D printing dusting structure of claim 1, characterized in that: and a vibration mechanism is arranged on the front baffle.
9. The quantitatively adjustable 3D printing powder laying structure according to claim 1, characterized in that: the bottom baffle is arranged at the bottom of the front baffle through a connecting piece; the connecting piece is provided with a first waist hole and is fixed with the front baffle through a bolt penetrating through the first waist hole; the bottom baffle is provided with a second waist hole and is fixed with the connecting piece through a bolt penetrating through the second waist hole.
10. The quantitatively adjustable 3D printing dusting structure of claim 1, characterized in that: the bottom baffles are arranged in parallel; or the bottom baffle inclines downwards from front to back, and the inclination angle is 0-40 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210639555.5A CN115056484A (en) | 2022-06-07 | 2022-06-07 | Quantitative adjustable 3D prints and spreads powder structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210639555.5A CN115056484A (en) | 2022-06-07 | 2022-06-07 | Quantitative adjustable 3D prints and spreads powder structure |
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| Publication Number | Publication Date |
|---|---|
| CN115056484A true CN115056484A (en) | 2022-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210639555.5A Pending CN115056484A (en) | 2022-06-07 | 2022-06-07 | Quantitative adjustable 3D prints and spreads powder structure |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115416297A (en) * | 2022-10-22 | 2022-12-02 | 河北智达维创电子科技有限公司 | 3D printing material thin layer stone device |
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