CN116000250A - Sand cleaning device for sand mold 3D printing - Google Patents
Sand cleaning device for sand mold 3D printing Download PDFInfo
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- CN116000250A CN116000250A CN202310130070.8A CN202310130070A CN116000250A CN 116000250 A CN116000250 A CN 116000250A CN 202310130070 A CN202310130070 A CN 202310130070A CN 116000250 A CN116000250 A CN 116000250A
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- 239000004576 sand Substances 0.000 title claims abstract description 92
- 238000010146 3D printing Methods 0.000 title claims abstract description 22
- 238000004140 cleaning Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 66
- 230000000295 complement effect Effects 0.000 claims abstract description 28
- 244000035744 Hura crepitans Species 0.000 claims abstract description 27
- 238000000926 separation method Methods 0.000 claims abstract description 16
- 230000009471 action Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 9
- 238000007639 printing Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a sand cleaning device for sand mould 3D printing, which comprises an air compressor and a sand box; the sand box comprises a box body and a sand carrying mechanism, and the sand carrying mechanism can be longitudinally and movably arranged in the box body; when the base in the sand box is positioned at the lower limit position in the box, the movable plate is separated from the bearing plate under the action of the separation reset mechanism, the complementary strip-shaped blocks and the corresponding strip-shaped hollowed-out parts form staggered arrangement, and the air outlet holes of the cross beams are positioned above the complementary strip-shaped blocks; the air outlet end of the air compressor is connected with the first connecting pipeline through the connecting pipeline, and air pressurized by the air compressor sequentially passes through the first connecting pipeline, the first air supply channel, the back-shaped air supply channel and the linear air supply channel and is sprayed out through the air outlet holes 315. According to the invention, the sand for printing of the non-part in the box body forms sand burst under the action of pressurized air sprayed out of the air outlet, and operators can easily take out parts covered by the sand for printing in the sand box through manual or third-party auxiliary equipment, so that the whole process is time-saving and labor-saving.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a sand cleaning device for sand mould 3D printing.
Background
A 3D printing, namely a rapid prototyping technology, also called additive manufacturing, is a technology for constructing objects by using powdery metal or plastic and other bondable materials in a layer-by-layer printing mode based on digital model files. For the foundry industry, the technology capable of realizing 3D printing of foundry sand molds is mainly a three-dimensional printing technology. The principle of the three-dimensional printing technology is that a three-dimensional model of a part is divided into a plurality of three-dimensional sections, and the three-dimensional sections are stacked into a three-dimensional entity in a sand box layer by layer superposition mode. The three-dimensional printing technology is applied to sand mold production, die sinking and one-time molding are not needed, the speed is high, the material cost is low, the molding material is convenient to clean, and more possibility is provided for preparing complex parts conforming to specific functional design.
However, when casting sand mould 3D prints the back, print the spare part of accomplishing and print with sand and lay in the sand box together, need the manual work to adopt negative pressure sand cleaning equipment to suck out the sand for the printing in the sand box, just can take out the spare part of accomplishing in the sand box, and whole process wastes time and energy.
Disclosure of Invention
Aiming at the problems, the invention provides the sand cleaning device for the sand mould 3D printing, which is convenient for taking out the printed parts in the sand box, and the whole process is time-saving and labor-saving.
The invention provides a sand cleaning device for sand mould 3D printing, which comprises an air compressor and a sand box;
the sand box comprises a box body and a sand carrying mechanism, and the sand carrying mechanism can be longitudinally and movably arranged in the box body;
the sand carrying mechanism comprises a bearing plate, a movable plate, a base, four upright posts and a separation reset mechanism, wherein the bearing plate and the base are arranged in parallel, and four corners of the bearing plate and the base are respectively connected through the four upright posts; the four corners of the movable plate are respectively provided with a sliding hole, and the four sliding holes of the movable plate are respectively and movably sleeved on the four upright posts; the separation reset mechanism is arranged on the base and is used for driving the movable plate to abut against or separate from the bearing plate;
the bearing plate is provided with a plurality of bar-shaped hollows which are equidistant and arranged in parallel, and a cross beam is formed between any two adjacent bar-shaped hollows; the bearing plate is provided with a back-shaped air supply channel, the cross beams are positioned in a space surrounded by the back-shaped air supply channel, a linear air supply channel is arranged in each cross beam along the length direction of each cross beam, and the linear air supply channels are communicated with the back-shaped air supply channels; the two sides of the cross beam, which correspond to the strip-shaped hollowed-out parts, are provided with a plurality of air outlet holes;
complementary bar blocks which are matched in a conformal manner are arranged on the movable plate corresponding to each bar-shaped hollow part;
a first connecting pipeline is arranged on the base corresponding to a stand column, and a first air supply channel which is communicated with the return air supply channel and the first connecting pipeline is arranged inside the stand column; the air outlet end of the air compressor is connected with the first connecting pipeline through the connecting pipeline.
Preferably, when the base is positioned at a non-lower limit position in the box body, the movable plate abuts against the bearing plate, the complementary strip-shaped blocks are in fit in the corresponding strip-shaped hollowed-out parts, and the bearing plate and the complementary strip-shaped blocks of the movable plate are matched to form a plane for sanding; when the base is located at the lower limit in the box body, the movable plate is separated from the bearing plate under the action of the separation reset mechanism, the complementary strip-shaped blocks and the corresponding strip-shaped hollowed-out parts form staggered arrangement, and the air outlet holes of the cross beams are located above the complementary strip-shaped blocks.
Preferably, the bearing plate comprises a first square tube, a second square tube, a third square tube and a fourth square tube, wherein the first square tube, the second square tube, the third square tube and the fourth square tube are sequentially connected end to form a back shape, and inner cavities of the first square tube, the second square tube, the third square tube and the fourth square tube are communicated to form a back shape air supply channel; the two ends of each cross beam are respectively connected with a second square pipe and a fourth square pipe, and the inner cavities of the second square pipe and the fourth square pipe are communicated with the linear air supply channel of each cross beam; two ends of the first square tube are respectively connected with the two upright posts, and two ends of the third square tube are respectively connected with the two upright posts.
Preferably, a plurality of first air outlet holes are formed in the corresponding adjacent strip-shaped hollowed sides of the first square tube, at least one second air outlet hole is formed in the corresponding each strip-shaped hollowed side of the second square tube, a plurality of third air outlet holes are formed in the corresponding adjacent strip-shaped hollowed sides of the third square tube, and at least one fourth air outlet hole is formed in the corresponding each strip-shaped hollowed side of the fourth square tube.
Preferably, the first air outlet holes of the first square tube are arranged in a dislocation mode with the air outlet holes on the adjacent cross beams, the first air outlet holes of the third square tube are arranged in a dislocation mode with the air outlet holes on the adjacent cross beams, and the air outlet holes on any two adjacent cross beams are arranged in a dislocation mode.
Preferably, two support beams which are arranged in parallel are arranged on the base, and the support beams are arranged vertically to the strip-shaped hollowed-out parts;
the separation reset mechanism comprises two propping mechanisms, two concave plates and four compression springs; the two propping mechanisms are respectively arranged on the base and are symmetrically arranged on the base; two ends of the two concave plates are connected with the movable plate, the movable plate and the concave plates are arranged up and down, and the two concave plates are arranged in parallel; the four compression springs are respectively sleeved on the four upright posts, and two ends of each compression spring are respectively propped against the base and the movable plate;
the propping mechanism comprises a first waist-shaped block, a second waist-shaped block and a propping rod, wherein the middle part of the first waist-shaped block is provided with a first connecting shaft, the two ends of the first connecting shaft are connected with bearing seats, and the bearing seats at the two ends of the first connecting shaft are all arranged on the base; the middle part of the second waist-shaped block is provided with a second connecting shaft, the two ends of the second connecting shaft are connected with bearing seats, and the bearing seats at the two ends of the second connecting shaft are all arranged on the base;
the first waist-shaped block and the second waist-shaped block are respectively correspondingly matched with the two concave plates, the first waist-shaped block is positioned in a space surrounded by the corresponding concave plate and the movable plate, one end of the first waist-shaped block close to the center of the base is abutted against the bottom of the corresponding concave plate, and one end of the first waist-shaped block far away from the center of the base is connected with the abutting rod; the second waist-shaped block is positioned in the corresponding concave plate, one end of the second waist-shaped block close to the center of the base is propped against the bottom of the corresponding concave plate, and one end of the second waist-shaped block far away from the center of the base is connected with the propping rod; the first waist-shaped block and the second waist-shaped block are vertically arranged with the abutting rod, the abutting rod is vertically arranged with the concave plate, and the abutting rod is vertically arranged with the supporting beam; two ends of the propping rod respectively prop against two supporting beams of the base, and the propping rod is positioned above the supporting beams;
square supporting blocks for propping against the leaning rod are arranged at two ends of the bottom of the box body corresponding to the leaning rod.
Preferably, the concave plate comprises a bottom plate and two vertical plates, wherein the two vertical plates are respectively connected with two ends of the bottom plate, and one ends of the far bottom plates of the two vertical plates are connected with the movable plate.
Preferably, the base is provided with a first bearing beam, a second bearing beam, a third bearing beam and a fourth bearing beam which are arranged in parallel, bearing seats at two ends of the first connecting shaft are respectively arranged on the first bearing beam and the second bearing beam, and bearing seats at two ends of the second connecting shaft are respectively arranged on the third bearing beam and the fourth bearing beam; one concave plate is positioned between the first bearing beam and the second bearing beam, and the other concave plate is positioned between the third bearing beam and the fourth bearing beam; one square supporting block is positioned between one supporting beam and the first bearing beam, and the other square supporting block is positioned between the other supporting beam and the fourth bearing beam.
Preferably, an arc-shaped groove is formed in the support beam at the position corresponding to the abutting rod.
Preferably, the bottom of the box body is provided with a mounting window; two opposite sides of the base are respectively provided with two lifting rods, and a longitudinal sliding hole for longitudinally moving the lifting rods is formed at the position of the box body corresponding to the lifting rods.
The invention has the following beneficial effects:
1. after the 3D sand mould printing is finished by the sand box, the base in the sand box is positioned at the lower limit position in the box, at the moment, under the action of the separation reset mechanism, the movable plate is separated from the bearing plate, the complementary strip-shaped blocks and the corresponding strip-shaped hollowed-out parts form staggered arrangement, and the air outlet holes of the cross beams are positioned above the complementary strip-shaped blocks; the air outlet end of the air compressor is connected with the first connecting pipeline through the connecting pipeline, and air pressurized by the air compressor sequentially passes through the first connecting pipeline, the first air supply channel, the back-shaped air supply channel and the linear air supply channel and is sprayed out from the air outlet hole 315; the printing of non-spare part in the box forms the sand gushing under venthole spun pressurized air effect, and operating personnel can easily take out the spare part covered by printing sand in the sand box through artifical or third party auxiliary instrument, and whole process labour saving and time saving.
2. The first air outlet hole, the second air outlet hole, the third air outlet hole and the fourth air outlet hole are respectively additionally arranged on the first square tube, the second square tube, the third square tube and the fourth square tube, so that the area of the pressurized gas in the box body in a driving mode is further improved, and the area of sand burst in the box body is further enlarged.
3. When the design of the reset mechanism is separated, and the base is positioned in the lower limit of the box body, the movable plate is automatically separated from the bearing plate through the combined action of the propping mechanism and the square supporting block, so that the complementary strip-shaped blocks and the corresponding strip-shaped hollowed-out parts form staggered arrangement, and the whole process does not need manual intervention or operation.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a sand box according to an embodiment of the present invention;
FIG. 3 is a schematic diagram showing a structure of the box and the sand carrying mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic view of the structure of the movable plate, the separation reset mechanism and the base according to the embodiment of the present invention;
FIG. 5 is a schematic view of a carrier plate according to an embodiment of the invention;
FIG. 6 is a schematic diagram of a sand loading mechanism according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a mechanism for disengaging a reset mechanism according to an embodiment of the present invention;
fig. 8 is a cross-sectional view of a beam in an embodiment of the invention.
Reference numerals:
1-an air compressor, 2-a box body, 21-a mounting window, 22-a longitudinal sliding hole, 3-a sand carrying mechanism, 31-a bearing plate, 311-a strip-shaped hollow part, 312-a cross beam, 313-a circular air supply channel, 314-a linear air supply channel, 315-an air outlet hole, 316-a first square pipe, 3161-a first air outlet hole, 317-a second square pipe, 3171-a second air outlet hole, 318-a third square pipe, 3181-a third air outlet hole, 319-a fourth square pipe, 3191-a fourth air outlet hole, 32-a movable plate, 321-a sliding hole, 322-a complementary strip-shaped block, 33-a base, 331-a first connecting pipe, 332-a supporting beam, 3321-arc-shaped groove, 333-first bearing beam, 334-second bearing beam, 335-third bearing beam, 336-fourth bearing beam, 337-lifting rod, 338-second connecting pipeline, 339-first transition channel, 34-upright post, 341-first air supply channel, 4-separation reset mechanism, 41-concave plate, 411-upright plate, 412-bottom plate, 42-leaning mechanism, 421-first waist-shaped block, 422-second waist-shaped block, 423-leaning rod, 424-first connecting shaft, 425-second connecting shaft, 426-square supporting block, 43-compression spring, 5-sand return prevention pipe.
Detailed Description
Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 8, the sand cleaning device for sand mold 3D printing provided in the present embodiment includes an air compressor 1 and a sand box; the sand box comprises a box body 2 and a sand carrying mechanism 3, wherein the sand carrying mechanism 3 can be longitudinally movably arranged in the box body 2.
The sand carrying mechanism 3 comprises a carrying plate 31, a movable plate 32, a base 33, four upright posts 34 and a separation reset mechanism 4, wherein the carrying plate 31 and the base 33 are arranged in parallel, and four corners of the carrying plate 31 and the base 33 are respectively connected through the four upright posts 34. The four corners of the movable plate 32 are respectively provided with a sliding hole 321, and the four sliding holes 321 of the movable plate 32 are respectively movably sleeved on the four upright posts 34. The detachment reset mechanism 4 is mounted on the base 33, and the detachment reset mechanism 4 is used for driving the movable plate 32 to abut against or detach from the bearing plate 31.
The bearing plate 31 is provided with a plurality of equidistant and parallel strip-shaped hollows 311, and a cross beam 312 is formed between any two adjacent strip-shaped hollows 311. The carrier plate 31 is provided with a back-shaped air supply channel 313, the cross beams 312 are positioned in a space surrounded by the back-shaped air supply channel 313, a linear air supply channel 314 is arranged in the cross beam 312 along the length direction, and the linear air supply channel 314 is communicated with the back-shaped air supply channel 313. The beam 312 is provided with a plurality of air outlets 315 corresponding to the two sides of the strip-shaped hollow 311. The air outlet holes 315 on the same beam 312 are in communication with their linear air feed channels 314.
At the same time, a complementary strip-shaped block 322 which is matched with the movable plate 32 in a conformal way is arranged at each strip-shaped hollow part. When the base 33 is positioned in the box body 2 and is not limited by the lower limit, the movable plate 32 abuts against the bearing plate 31, the complementary strip-shaped blocks 322 are in fit in the corresponding strip-shaped hollowed-out parts 311, and the bearing plate 31 and the complementary strip-shaped blocks 322 of the movable plate 32 are matched to form a plane for sanding; when the base 33 is located at the lower limit of the box 2, under the action of the separation reset mechanism 4, the movable plate 32 is separated from the bearing plate 31, the complementary bar-shaped blocks 322 and the corresponding bar-shaped hollow 311 form a staggered arrangement, and the air outlet holes 315 of the cross beams 312 are located above the complementary bar-shaped blocks 322.
The base 33 is provided with a first connecting pipe 331 corresponding to a column, and a first air supply channel 341 communicating the return air supply channel 313 and the first connecting pipe 331 is provided inside the column. The air outlet end of the air compressor 1 is connected with the first connecting pipe 331 through a connecting pipe. Specifically, the base 33 is provided with a first transition passage 339 therein, the first connection pipe 331 communicates with the first transition passage 339, and the first transition passage 339 communicates with the first air supply passage 341. In another embodiment, a second connecting pipe 338 is disposed on the base 33 corresponding to another upright, a second transition channel is disposed on the base 33 corresponding to the second connecting pipe 338, a second air supply channel is disposed inside the upright, the second air supply channel and the second connecting pipe 338 are communicated through the second transition channel, and the loop-shaped air supply channel 313 is communicated with the second air supply channel. The second connecting pipeline 338 and the first connecting pipeline 331 are arranged in a diagonal manner, the air outlet end of the air compressor 1 is connected with the second connecting pipeline 338 and the first connecting pipeline 331 through the connecting pipelines, and due to the design of the second connecting pipeline 338 and the first connecting pipeline 331, uniformity of air pressure in the circular air supply channel 313 is improved, and the phenomenon that single-side pressure or low pressure of the air pressure in the circular air supply channel 313 is effectively avoided.
After the 3D sand mould printing of the sand box is completed, the base 33 in the sand box is positioned at the lower limit in the box body 2, at the moment, under the action of the separation reset mechanism 4, the movable plate 32 is separated from the bearing plate 31, the complementary strip-shaped blocks 322 and the corresponding strip-shaped hollowed-out parts 311 form staggered arrangement, and the air outlet holes 315 of the cross beams 312 are positioned above the complementary strip-shaped blocks 322; connecting the air outlet end of the air compressor 1 with the first connecting pipeline 331 through a connecting pipeline, and sequentially spraying the air after the air compressor 1 is pressurized through the first connecting pipeline 331, the first air supply channel 341, the return air supply channel 313 and the linear air supply channel 314 by the air outlet holes 315; the printing sand of the non-part in the box body 2 forms sand burst under the action of the pressurized air sprayed out by the air outlet 315, so that operators can easily take out the light-weight part in the sand box; if some parts with large mass are encountered, under the condition that sand gushes are formed in the box body 2, operators can easily take out the parts with large mass from the box body 2 by means of a third-party mechanical arm or a lifting mechanism. Therefore, after the pressurized air sprayed out through the air outlet 315 forms sand burst in the box body 2, operators can easily take out parts covered by the printing sand in the sand box, and the whole process is time-saving and labor-saving. In this embodiment, the bottom of the box 2 is provided with a mounting window 21, so that the connecting pipeline of the air compressor 1 can conveniently enter the box 2 to be connected with the first connecting pipeline 331.
The sand gushing means that when the bottom of the sand in the box body is acted by the pressurized air, the pressurized air can move upwards in the box body, and the sand in the box body continuously rolls under the action of the pressurized air, so that the sand in the box body is in a boiling water state, and the sand gushing phenomenon is formed. When the sand gushing phenomenon occurs in the box body, the sand in the box body is in a suspended state, the quality is light or negligible, and people can easily take out objects in the sand gushing in the box body.
In this embodiment, considering that a large-mass component may occur in the case 2, a third-party mechanical arm or a lifting mechanism is used. It should be noted that, the third party mechanical arm or the lifting mechanism is used for clamping or hoisting out the parts in the box 2, which belongs to the prior art and is not described herein again. In addition, it should be noted that, even if the sand box is not filled with the printing sand, the sand carrying mechanism 3 will make the base 33 drop to the lower limit of the box 2 under the action of the dead weight, at this time, under the action of the releasing reset mechanism 4, the movable plate 32 is released from the bearing plate 31, the complementary bar blocks 322 and the corresponding bar hollow 311 form a staggered arrangement, and the air outlet holes 315 of the cross beams 312 are located above the complementary bar blocks 322.
Of course, in another embodiment, in order to ensure that the base 33 is always at the lower limit in the box 2 when the sand gushing phenomenon occurs in the box 2, the sand box can be moved to a track with a lifting mechanism, the lifting mechanism is matched with the base, the lifting mechanism is used for driving the base 33 to longitudinally move in the box 2, and the base 33 is always at the lower limit in the box 2 when the sand gushing phenomenon occurs in the box 2 can be ensured by the lifting mechanism; the lifting mechanism belongs to the prior art and is not described in detail herein.
In addition, two lifting rods 337 are respectively arranged on two opposite sides of the base 33, and a longitudinal sliding hole 22 for longitudinally moving the lifting rod 337 is arranged at the position of the box body 2 corresponding to the lifting rod 337. The lifting rod 337 is in butt joint with a servo lifting mechanism in the sand mold 3D printer, and the servo lifting mechanism can control the sand carrying mechanism to accurately descend or ascend in the box body 2 through the lifting rod 337 so as to finish sand paving and ink jet of the sand mold 3D printer in the box body 2. The servo lifting mechanism is arranged in the sand mold 3D printer, belongs to the prior art, and is not described herein. In one embodiment, in order to avoid the outflow of the abrasive blasts from the longitudinal sliding holes 22 of the box 2, longitudinal blocking strips are provided at the longitudinal sliding holes 22 of the box 2; when the base 33 descends to the lower limit of the box 2, the lifting rod 337 is just located at the bottom of the longitudinal sliding hole 22, and at this time, the longitudinal plugging strip is inserted into the longitudinal sliding hole 22, so that the longitudinal sliding hole 22 just above the lifting rod 337 can be completely plugged.
Specifically, the carrying plate 31 includes a first square tube 316, a second square tube 317, a third square tube 318, and a fourth square tube 319, where the first square tube 316, the second square tube 317, the third square tube 318, and the fourth square tube 319 are connected end to end in turn to form a zigzag shape, and the inner cavities of the first square tube 316, the second square tube 317, the third square tube 318, and the fourth square tube 319 are communicated to form a zigzag air supply channel 313. Both ends of each cross beam 312 are connected to the second square tube 317 and the fourth square tube 319, respectively, and the inner cavities of the second square tube 317 and the fourth square tube 319 are communicated with the straight air supply passage 314 of each cross beam 312. The first square pipe 316 has two ends connected to the two upright posts 34, and the third square pipe 318 has two ends connected to the two upright posts 34.
Further, a plurality of first air outlet holes 3161 are formed in the first square tube 316 corresponding to the adjacent strip-shaped hollow sides, at least one second air outlet hole 3171 is formed in the second square tube 317 corresponding to each strip-shaped hollow side, a plurality of third air outlet holes 3181 are formed in the third square tube 318 corresponding to the adjacent strip-shaped hollow sides, and at least one fourth air outlet hole 3191 is formed in the fourth square tube 319 corresponding to each strip-shaped hollow side. The design of the first air outlet hole 3161, the second air outlet hole 3171, the third air outlet hole 3181 and the fourth air outlet hole 3191 facilitates the pressurized air to be sent into the box 2 through the first square pipe 316, the second square pipe 317, the third square pipe 318 and the fourth square pipe 319 respectively. In addition, the first air outlet hole 3161, the second air outlet hole 3171, the third air outlet hole 3181 and the fourth air outlet hole 3191 are respectively added on the first square pipe 316, the second square pipe 317, the third square pipe 318 and the fourth square pipe 319, so that the area where the pressurized gas is blown in the box body is further increased, and the area where sand gushes in the box body 2 is further increased.
In this embodiment, the air outlet holes 315 are provided with upward-inclined sand return preventing pipes, and the first air outlet holes 3161, the second air outlet holes 3171, the third air outlet holes 3181 and the fourth air outlet holes 3191 are all provided with upward-inclined sand return preventing pipes 5. The design of the sand return prevention pipe 5 can avoid the phenomenon that the printing sand in the sand box flows into the corresponding return air supply channel 313 or the linear air supply channel 314 through the air outlet holes/the first air outlet holes/the second air outlet holes/the third air outlet holes/the fourth air outlet holes, so that the return air supply channel 313 or the linear air supply channel 314 is blocked locally.
As shown in fig. 5, in order to improve the uniformity of the pressurized air flowing in the box 2, the first air outlet holes 3161 of the first square tube 316 and the air outlet holes on the adjacent beams are arranged in a staggered manner, the first air outlet holes 3181 of the third square tube 318 and the air outlet holes on the adjacent beams are arranged in a staggered manner, and the air outlet holes on any two adjacent beams are arranged in a staggered manner.
As shown in fig. 7, the disengagement reset mechanism 4 includes two abutting mechanisms 42, two concave plates 41, and four compression springs 43; two propping mechanisms 42 and two concave plates 41; the two propping mechanisms 42 are respectively installed on the base 33, and the two propping mechanisms 42 are symmetrically arranged on the base 33. Four compression springs 43 are respectively sleeved on the four upright posts 34, and two ends of the compression springs 43 respectively abut against the base 33 and the movable plate 32. Both ends of the two concave plates 41 are connected with the movable plate 32, the movable plate 32 and the concave plates 41 are arranged up and down, and the two concave plates 41 are arranged in parallel. The propping mechanism 42 comprises a first waist-shaped block 421, a second waist-shaped block 422 and a propping rod 423, a first connecting shaft 424 is arranged in the middle of the first waist-shaped block 421, bearing seats are connected to two ends of the first connecting shaft 424, and the bearing seats at two ends of the first connecting shaft 424 are all arranged on the base; the middle part second connecting axle 425 of second kidney-shaped piece 422, the both ends of second connecting axle 425 are connected with the bearing frame, and the bearing frame at second connecting axle 425 both ends is all installed on base 33.
The first kidney-shaped block 421 and the second kidney-shaped block 422 are respectively correspondingly matched with the two concave plates 41, the first kidney-shaped block 421 is positioned in a space surrounded by the corresponding concave plate 41 and the movable plate 32, one end, close to the center of the base, of the first kidney-shaped block 421 is propped against the bottom of the corresponding concave plate 41, and one end, close to the center of the base, of the first kidney-shaped block 421 is connected with the propping rod 423. The second kidney-shaped block 422 is located in the corresponding concave plate, one end of the second kidney-shaped block 422 near the center of the base abuts against the bottom of the corresponding concave plate, and one end of the second kidney-shaped block 422 far away from the center of the base is connected with the abutting rod 423. The first waisted block 421 and the second waisted block 422 are each disposed perpendicularly to the abutment rod 423, the abutment rod 423 is disposed perpendicularly to the concave 41, and the abutment rod 423 is disposed perpendicularly to the support beam 332. Two support beams 332 which are arranged in parallel are arranged on the base 33, and the support beams 332 are arranged vertically to the strip-shaped hollow 311; both ends of the abutment rod 423 abut against the two support beams 332 of the base 33, respectively, and the abutment rod 423 is located above the support beams 332. Square support blocks 426 for propping against the propping rod 332 are arranged at the two ends of the bottom of the box body 2 corresponding to the propping rod 332.
When the base 33 in the sand box is located at the lower limit position in the box body 2, the propping rod 423 is propped up by the square supporting block 426, the propping rod 42 drives the first waist-shaped block 421 and the second waist-shaped block 422 to rotate around the first connecting shaft 424 and the second connecting shaft 425 respectively, so that one end, close to the center of the base, of the first waist-shaped block 421 and one end, close to the center of the base, of the second waist-shaped block 422 are driven to rotate downwards, and further the two concave plates 41 are driven to move downwards, the concave plates 4 drive the movable plate 32 to move downwards to separate from the bearing plate 31, so that the complementary strip-shaped blocks 322 and the corresponding strip-shaped hollowed-out portions 311 form dislocation arrangement, and the air outlet holes 315 of the cross beams 312 are located above the complementary strip-shaped blocks 322. When the base 33 is positioned in the lower limit position of the box body 2 due to the design of the separation reset mechanism 4, the movable plate 32 is automatically separated from the bearing plate 31 under the combined action of the propping mechanism 42 and the square supporting block 426, so that the complementary strip-shaped blocks 322 and the corresponding strip-shaped hollowed-out parts 311 form staggered arrangement, and manual intervention or operation is not needed in the whole process. In this embodiment, in order to calibrate the positions of the first kidney-shaped block 421, the second kidney-shaped block 422 and the supporting rod 423 conveniently, and in order to limit the supporting rod 423 of the sand carrying mechanism separated from the lower limit, an arc-shaped groove 3321 is provided on the supporting beam 332 corresponding to the supporting rod. When the sand carrying mechanism is separated from the lower limit position of the box body 2, two ends of the supporting rod 423 are positioned in the corresponding arc-shaped grooves 3321.
To facilitate the limiting of the two concave plates 41 and the supporting of the bearing; the base 33 is provided with a first bearing beam 333, a second bearing beam 334, a third bearing beam 335 and a fourth bearing beam 336 which are arranged in parallel, bearing seats at two ends of a first connecting shaft 424 are respectively arranged on the first bearing beam 333 and the second bearing beam 334, and bearing seats at two ends of a second connecting shaft 425 are respectively arranged on the third bearing beam 335 and the fourth bearing beam 336; one recess plate is located between the first load beam 333 and the second load beam 334 and the other recess plate is located between the third load beam 335 and the fourth load beam 336. One square support block is located between one support beam and the first load beam 333 and the other square support block is located between the other support beam and the fourth load beam 336.
In this embodiment, the concave 41 includes a bottom plate 412 and two vertical plates 411, the two vertical plates 411 are respectively connected to two ends of the bottom plate 412, and one end of the far bottom plate of the two vertical plates 411 is connected to the movable plate 32. The two vertical plates 411 are arranged in parallel, and the bottom plate 412 and the two vertical plates 411 are connected to form a concave shape. The base center-side end of the first kidney-shaped piece 421 and the base center-side end of the second kidney-shaped piece 422 are respectively abutted against the bottom plates 412 of the two concave plates 41.
Notably, are: the air compressor refers to an air compressor, which is an apparatus for compressing gas. The air compressor is similar in construction to the water pump. The air compressor is the core equipment of the pneumatic system, and the main body in the electromechanical air-entraining source device is a device for converting mechanical energy of motive force (usually an electric motor or a diesel engine) into air pressure energy and is an air pressure generating device of compressed air. That is, the air compressor pressurizes and outputs air, and the air can be output to the air storage tank or directly connected with the air injection device to enable the air injection device to inject air with certain pressure.
It should be noted that the above-mentioned preferred embodiments are only for illustrating the technical scheme of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
Claims (10)
1. A sand cleaning device for sand mould 3D prints, its characterized in that: comprises an air compressor and a sand box;
the sand box comprises a box body and a sand carrying mechanism, and the sand carrying mechanism can be longitudinally and movably arranged in the box body;
the sand carrying mechanism comprises a bearing plate, a movable plate, a base, four upright posts and a separation reset mechanism, wherein the bearing plate and the base are arranged in parallel, and four corners of the bearing plate and the base are respectively connected through the four upright posts; the four corners of the movable plate are respectively provided with a sliding hole, and the four sliding holes of the movable plate are respectively and movably sleeved on the four upright posts; the separation reset mechanism is arranged on the base and is used for driving the movable plate to abut against or separate from the bearing plate;
the bearing plate is provided with a plurality of bar-shaped hollows which are equidistant and arranged in parallel, and a cross beam is formed between any two adjacent bar-shaped hollows; the bearing plate is provided with a back-shaped air supply channel, the cross beams are positioned in a space surrounded by the back-shaped air supply channel, a linear air supply channel is arranged in each cross beam along the length direction of each cross beam, and the linear air supply channels are communicated with the back-shaped air supply channels; the two sides of the cross beam, which correspond to the strip-shaped hollowed-out parts, are provided with a plurality of air outlet holes;
complementary bar blocks which are matched in a conformal manner are arranged on the movable plate corresponding to each bar-shaped hollow part;
a first connecting pipeline is arranged on the base corresponding to a stand column, and a first air supply channel which is communicated with the return air supply channel and the first connecting pipeline is arranged inside the stand column; the air outlet end of the air compressor is connected with the first connecting pipeline through the connecting pipeline.
2. The sand cleaning device for sand mold 3D printing of claim 1, wherein:
when the base is positioned at a non-lower limit position in the box body, the movable plate abuts against the bearing plate, the complementary strip-shaped blocks are in fit in the corresponding strip-shaped hollows, and the bearing plate and the complementary strip-shaped blocks of the movable plate are matched to form a plane for sanding; when the base is located at the lower limit in the box body, the movable plate is separated from the bearing plate under the action of the separation reset mechanism, the complementary strip-shaped blocks and the corresponding strip-shaped hollowed-out parts form staggered arrangement, and the air outlet holes of the cross beams are located above the complementary strip-shaped blocks.
3. The sand cleaning device for sand mold 3D printing of claim 1, wherein:
the bearing plate comprises a first square tube, a second square tube, a third square tube and a fourth square tube, wherein the first square tube, the second square tube, the third square tube and the fourth square tube are sequentially connected end to form a return shape, and inner cavities of the first square tube, the second square tube, the third square tube and the fourth square tube are communicated to form a return shape air supply channel; the two ends of each cross beam are respectively connected with a second square pipe and a fourth square pipe, and the inner cavities of the second square pipe and the fourth square pipe are communicated with the linear air supply channel of each cross beam; two ends of the first square tube are respectively connected with the two upright posts, and two ends of the third square tube are respectively connected with the two upright posts.
4. A sand cleaning device for sand mould 3D printing as claimed in claim 3, wherein:
the first square tube corresponds adjacent bar fretwork side and is equipped with a plurality of first ventholes, and the second square tube corresponds every bar fretwork side and is equipped with at least one second venthole, and the third square tube corresponds adjacent bar fretwork side and is equipped with a plurality of third ventholes, and the fourth square tube corresponds every bar fretwork side and is equipped with at least one fourth venthole.
5. The sand cleaning device for sand mold 3D printing of claim 4, wherein:
the first air outlet holes of the first square tube are arranged in a dislocation mode with the air outlet holes on the adjacent cross beams, the first air outlet holes of the third square tube are arranged in a dislocation mode with the air outlet holes on the adjacent cross beams, and the air outlet holes on any two adjacent cross beams are arranged in a dislocation mode.
6. Sand cleaning device for sand mould 3D printing according to any of the claims 1-5, characterized in that:
two supporting beams which are arranged in parallel are arranged on the base, and the supporting beams are arranged vertically to the strip-shaped hollowed-out parts;
the separation reset mechanism comprises two propping mechanisms, two concave plates and four compression springs; the two propping mechanisms are respectively arranged on the base and are symmetrically arranged on the base; two ends of the two concave plates are connected with the movable plate, the movable plate and the concave plates are arranged up and down, and the two concave plates are arranged in parallel; the four compression springs are respectively sleeved on the four upright posts, and two ends of each compression spring are respectively propped against the base and the movable plate;
the propping mechanism comprises a first waist-shaped block, a second waist-shaped block and a propping rod, wherein the middle part of the first waist-shaped block is provided with a first connecting shaft, the two ends of the first connecting shaft are connected with bearing seats, and the bearing seats at the two ends of the first connecting shaft are all arranged on the base; the middle part of the second waist-shaped block is provided with a second connecting shaft, the two ends of the second connecting shaft are connected with bearing seats, and the bearing seats at the two ends of the second connecting shaft are all arranged on the base;
the first waist-shaped block and the second waist-shaped block are respectively correspondingly matched with the two concave plates, the first waist-shaped block is positioned in a space surrounded by the corresponding concave plate and the movable plate, one end of the first waist-shaped block close to the center of the base is abutted against the bottom of the corresponding concave plate, and one end of the first waist-shaped block far away from the center of the base is connected with the abutting rod; the second waist-shaped block is positioned in the corresponding concave plate, one end of the second waist-shaped block close to the center of the base is propped against the bottom of the corresponding concave plate, and one end of the second waist-shaped block far away from the center of the base is connected with the propping rod; the first waist-shaped block and the second waist-shaped block are vertically arranged with the abutting rod, the abutting rod is vertically arranged with the concave plate, and the abutting rod is vertically arranged with the supporting beam; two ends of the propping rod respectively prop against two supporting beams of the base, and the propping rod is positioned above the supporting beams;
square supporting blocks for propping against the leaning rod are arranged at two ends of the bottom of the box body corresponding to the leaning rod.
7. The sand cleaning device for sand mold 3D printing of claim 6, wherein:
the concave plate comprises a bottom plate and two vertical plates, the two vertical plates are respectively connected with two ends of the bottom plate, and one end of a far bottom plate of the two vertical plates is connected with the movable plate.
8. The sand cleaning device for sand mold 3D printing according to claim 6 or 7, characterized in that:
the base is provided with a first bearing beam, a second bearing beam, a third bearing beam and a fourth bearing beam which are arranged in parallel, bearing seats at two ends of the first connecting shaft are respectively arranged on the first bearing beam and the second bearing beam, and bearing seats at two ends of the second connecting shaft are respectively arranged on the third bearing beam and the fourth bearing beam; one concave plate is positioned between the first bearing beam and the second bearing beam, and the other concave plate is positioned between the third bearing beam and the fourth bearing beam; one square supporting block is positioned between one supporting beam and the first bearing beam, and the other square supporting block is positioned between the other supporting beam and the fourth bearing beam.
9. The sand cleaning device for sand mold 3D printing of claim 6, wherein:
and an arc-shaped groove is formed in the support beam at the position corresponding to the abutting rod.
10. The sand cleaning device for sand mold 3D printing of claim 1, wherein:
the bottom of the box body is provided with a mounting window;
two opposite sides of the base are respectively provided with two lifting rods, and a longitudinal sliding hole for longitudinally moving the lifting rods is formed at the position of the box body corresponding to the lifting rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310130070.8A CN116000250B (en) | 2023-02-17 | 2023-02-17 | Sand cleaning device for sand mold 3D printing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310130070.8A CN116000250B (en) | 2023-02-17 | 2023-02-17 | Sand cleaning device for sand mold 3D printing |
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| Publication Number | Publication Date |
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| CN116000250A true CN116000250A (en) | 2023-04-25 |
| CN116000250B CN116000250B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310130070.8A Active CN116000250B (en) | 2023-02-17 | 2023-02-17 | Sand cleaning device for sand mold 3D printing |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206662189U (en) * | 2017-04-26 | 2017-11-24 | 贵州森远增材制造科技有限公司 | A kind of auxiliary equipment arrangement for casting sand mo(u)ld 3D printing |
| CN112404356A (en) * | 2020-11-26 | 2021-02-26 | 康硕(德阳)智能制造有限公司 | Sand cleaning device for 3D sand mold printing |
| CN214768725U (en) * | 2021-04-26 | 2021-11-19 | 康硕(德阳)智能制造有限公司 | Sand removing equipment for sand mold 3D printer |
| CN215040345U (en) * | 2021-01-21 | 2021-12-07 | 昱家良品(山东)艺术设计有限公司 | Sand removal and piece taking device of 3D printer |
| CN218080271U (en) * | 2022-06-11 | 2022-12-20 | 河北智达维创电子科技有限公司 | 3D sand mold printer sand removal gets a device |
-
2023
- 2023-02-17 CN CN202310130070.8A patent/CN116000250B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206662189U (en) * | 2017-04-26 | 2017-11-24 | 贵州森远增材制造科技有限公司 | A kind of auxiliary equipment arrangement for casting sand mo(u)ld 3D printing |
| CN112404356A (en) * | 2020-11-26 | 2021-02-26 | 康硕(德阳)智能制造有限公司 | Sand cleaning device for 3D sand mold printing |
| CN215040345U (en) * | 2021-01-21 | 2021-12-07 | 昱家良品(山东)艺术设计有限公司 | Sand removal and piece taking device of 3D printer |
| CN214768725U (en) * | 2021-04-26 | 2021-11-19 | 康硕(德阳)智能制造有限公司 | Sand removing equipment for sand mold 3D printer |
| CN218080271U (en) * | 2022-06-11 | 2022-12-20 | 河北智达维创电子科技有限公司 | 3D sand mold printer sand removal gets a device |
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|---|---|
| CN116000250B (en) | 2024-01-30 |
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