CN113926990A - Leak-proof sand paving device and method - Google Patents
Leak-proof sand paving device and method Download PDFInfo
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- CN113926990A CN113926990A CN202010617073.0A CN202010617073A CN113926990A CN 113926990 A CN113926990 A CN 113926990A CN 202010617073 A CN202010617073 A CN 202010617073A CN 113926990 A CN113926990 A CN 113926990A
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- 239000004576 sand Substances 0.000 title claims abstract description 221
- 238000000034 method Methods 0.000 title abstract description 16
- 238000003892 spreading Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 230000007480 spreading Effects 0.000 claims abstract description 13
- 238000001125 extrusion Methods 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 23
- 238000007790 scraping Methods 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 7
- 238000007639 printing Methods 0.000 abstract description 7
- 238000003860 storage Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 10
- 230000002265 prevention Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- 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
- B33Y10/00—Processes of additive manufacturing
-
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a leak-proof sand spreading device and a leak-proof sand spreading method, and the leak-proof sand spreading device comprises a negative pressure device, a transmission device, a conical sealing device and a sand spreader main body, wherein the negative pressure device is arranged at the top of the sand spreader main body, the transmission device is arranged on the inner side and the outer side of the sand spreader main body, and the conical sealing device is arranged on the inner side and the outer side of the sand spreader main body. Through revolving cylinder control cam rotation, toper seal structure passes through cam extrusion to sand mouth down, rethread spring automatic re-setting, during the extrusion, make grit bulk density big, thereby play the effect of no sand leakage, sanding storage silo design is airtight space, the design of sanding ware transmission grit helical structure extends to outside sanding ware top design negative pressure pipe, through providing the negative pressure, make the grit no-leakage, improve sanding ware storage sand security, avoid printing the in-process and lack the sand, avoid the grit to leak, reduce the printing cost, reduce artifical sand removal cost, thereby improve and print full flow efficiency.
Description
Technical Field
The invention belongs to the technical field of 3D printers, and particularly relates to a leak-proof sand paving device and method.
Background
At present, in the process of using a whole-box printing mould for casting sand type 3D printer equipment, due to the fact that additives in sand react with each other to form substances which are difficult to clean, the substances can be stuck on a bottom plate of powder spreading equipment in the continuous printing process, and sand pulling is caused in the sand spreading process.
For the reasons, the cleaning mechanism is specially designed to clean the sand scraping plate at the rear side of the working box and artificially clean crystalline substances of the sand scraping plate at the front side of the working box. In the whole cleaning process, the lower side of the sand spreader is not blocked, sand continuously leaks from a sand opening of the sand spreader, the sand adding of the sand spreader is not timely, sand is interrupted in the sand spreading process, waste products are caused, a large amount of sand is wasted, the leaked sand needs to be manually cleaned, and time and labor are wasted. To this condition, this patent proposes a leak protection sanding device.
Disclosure of Invention
The invention aims to provide a leak-proof sand paving device and a leak-proof sand paving method, and aims to solve the problems that in the use process of the existing sand paving device in the background art, sand is continuously leaked from a sand outlet of a sand paving device due to no blockage at the lower side of the sand paving device in the whole cleaning process, sand is not added in the sand paving device, the sand is interrupted in the sand paving process, and waste is caused.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a sand device is spread in leak protection, includes negative pressure device, transmission device, toper closing device and sanding ware main part, negative pressure device installs the top at sanding ware main part, transmission device sets up the inboard and the outside at sanding ware main part, toper closing device sets up the inboard and the outside at sanding ware main part.
The negative pressure device comprises a negative pressure pipe, and a sand-laying device cover plate is fixedly arranged at the bottom of the negative pressure pipe.
The transmission device comprises a three-way joint, a gate valve is movably mounted at the top of the three-way joint, a stirring wheel motor is fixedly mounted at one end of the three-way joint, a screw rod is fixedly mounted at the driving end of the stirring wheel motor, and a bearing is fixedly mounted at the outer side of one end, far away from the stirring wheel motor, of the screw rod.
The toper closing device includes that revolving cylinder and toper seal, revolving cylinder's output fixed mounting has the cam, the bottom fixed mounting that the toper sealed has the spring coupling plate, the bottom fixed mounting of spring coupling plate has the spring, the spring is kept away from the one end fixed mounting of spring coupling plate and is had the spring backup pad.
The sand spreader main part includes the sand spreader casing, one side fixed mounting of sand spreader casing has the vibration part, the bottom fixed mounting of sand spreader casing has the scraping plate.
Preferably, the leak-proof sand paving device comprises the following specific steps:
s1: opening a stirring wheel motor, then opening a gate valve, adding sand into the three-way joint, driving a driving end of the stirring wheel motor to drive a screw rod to rotate, transmitting the sand in the three-way joint to the inside of the sand paver shell by the screw rod until the sand is full, and opening a vibration component to vibrate the sand paver shell to discharge the sand in the sand paver shell from a lower sand outlet so that the sand paver normally paves the sand;
s2: after the normal sanding of the sand paver is finished, the gate valve is closed, and the negative pressure pipe is opened, so that negative pressure is generated inside the shell of the sand paver, and the load of sand is reduced;
s3: the rotating cylinder drives the cam to rotate 90 degrees, the conical seal moves downwards under the extrusion of the cam, the spring is compressed by the middle shaft of the spring connecting plate under the guide of the inner hole of the spring supporting plate, the angle of the side surface of the conical seal is the same as that of the inner cavity of the sand spreader shell, so that the lower sand opening is sealed by the conical seal, and the sand spreading is cleaned by a sand scraping plate at the bottom of the sand spreader shell;
s4: after cleaning, the gate valve is opened, the negative pressure pipe is closed, the rotating cylinder drives the cam to rotate reversely by 90 degrees, the spring is reset, the conical seal is made to rise, the sand outlet is opened, and normal sand paving is carried out again.
Preferably, the sand spreader cover plate is installed at the top of the sand spreader shell, and the sand spreader cover plate and the sand spreader shell are installed in a sealing mode.
Preferably, the one end that the tee bend was kept away from and is stirred the wheel motor is linked together with one side of sanding device casing, the hob is located the inside of tee bend and sanding device casing, bearing fixed mounting is in the inside of one side lateral wall that the tee bend was kept away from to the sanding device casing.
Preferably, the rotary cylinder is installed on one side of the sand spreader shell, the conical seal is located right below the cam, and the spring support plate is fixedly installed inside the sand spreader shell.
Preferably, the bottom of the sand spreader shell is provided with two sand scraping plates, and the lower sand port is positioned between the two sand scraping plates.
Compared with the prior art, the invention has the beneficial effects that:
the cam is controlled to rotate through the rotating cylinder, the conical sealing structure is extruded to the lower sand opening through the cam, and then the conical sealing structure is automatically reset through the spring, so that during extrusion, the stacking density of sand is high, and the effect of no sand leakage is achieved. The sand spreading and storing bin is designed to be an airtight space, the spiral structure of sand transmission of the sand spreading device extends to the upper portion of the outer sand spreading device to design the negative pressure pipe, sand leakage is avoided by providing negative pressure, sand storage safety of the sand spreading device is improved, sand shortage in the printing process is avoided, sand leakage is avoided, printing cost is reduced, manual sand cleaning cost is reduced, and printing full-flow efficiency is improved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic structural diagram of a negative pressure device according to the present invention;
FIG. 3 is a schematic structural diagram of a transmission device according to the present invention;
FIG. 4 is a schematic view of the construction of the cone-shaped sealing device of the present invention;
FIG. 5 is a schematic view of the main structure of the sand spreader and the sand maker of the present invention;
FIG. 6 is a schematic view of a partial cross-sectional view in elevation of a normal sanding state of the present invention;
FIG. 7 is a schematic right sectional view of the normal sanding state of the present invention;
FIG. 8 is an enlarged view of the structure at the point A of the present invention;
FIG. 9 is an enlarged view of the structure at B of the present invention;
FIG. 10 is a front view partially in section showing the structure of the present invention in a state of cleaning and preventing sand leakage;
FIG. 11 is a right sectional view of the sand-leakage-preventing state of the present invention;
FIG. 12 is an enlarged view of the structure at the point C of the present invention;
fig. 13 is an enlarged view of the structure at D of the present invention.
In the figure: 10. a negative pressure device; 11. a negative pressure tube; 12. a sander cover plate; 20. a transmission device; 21. a bearing; 22. a screw rod; 23. a three-way joint; 24. a stirring wheel motor; 25. a gate valve; 30. a conical sealing device; 31. a rotating cylinder; 32. a cam; 33. a spring connecting plate; 34. a spring; 35. a spring support plate; 36. sealing in a conical shape; 40. a sander main body; 41. a sander housing; 42. a vibrating member; 43. a sand scraping plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-13, the present invention provides a technical solution: the utility model provides a leak protection sanding device, includes negative pressure equipment 10, transmission device 20, toper closing device 30 and sanding device main part 40, and negative pressure equipment 10 installs at the top of sanding device main part 40, and transmission device 20 sets up in the inboard and the outside of sanding device main part 40, and toper closing device 30 sets up in the inboard and the outside of sanding device main part 40.
The negative pressure device 10 comprises a negative pressure pipe 11, and a sand-laying device cover plate 12 is fixedly arranged at the bottom of the negative pressure pipe 11.
The transmission device 20 comprises a three-way joint 23, a gate valve 25 is movably mounted at the top of the three-way joint 23, a stirring wheel motor 24 is fixedly mounted at one end of the three-way joint 23, a screw rod 22 is fixedly mounted at the driving end of the stirring wheel motor 24, and a bearing 21 is fixedly mounted on the outer side of one end, far away from the stirring wheel motor 24, of the screw rod 22.
The conical sealing device 30 comprises a rotary cylinder 31 and a conical seal 36, a cam 32 is fixedly mounted at the output end of the rotary cylinder 31, a spring connecting plate 33 is fixedly mounted at the bottom of the conical seal 36, a spring 34 is fixedly mounted at the bottom of the spring connecting plate 33, and a spring supporting plate 35 is fixedly mounted at one end, far away from the spring connecting plate 33, of the spring 34.
The sand layer main body 40 includes a sand layer case 41, a vibration member 42 is fixedly installed at one side of the sand layer case 41, and a sand scraping plate 43 is fixedly installed at the bottom of the sand layer case 41.
In the embodiment, the stirring wheel motor 24 is opened, then the gate valve 25 is opened, sand is added into the three-way joint 23, the driving end of the stirring wheel motor 24 drives the screw rod 22 to rotate, the screw rod 22 transmits the sand in the three-way joint 23 into the sand spreader shell 41 until the sand is full, the vibration component 42 is started to vibrate the sand spreader shell 41, so that the sand in the sand spreader shell 41 is discharged from a sand outlet, the sand spreader is normally spread, when the sand spreader is in a cleaning position, the gate valve 25 is closed, the negative pressure pipe 11 is opened, negative pressure is generated in the sand spreader shell 41, the load of the sand is reduced, the sand leakage prevention effect is achieved, when the negative pressure is generated, the rotary cylinder 31 drives the cam 32 to rotate 90 degrees, the conical seal 36 moves downwards under the squeezing of the cam 32, the middle shaft of the spring connecting plate 33 is guided by the inner hole of the spring supporting plate 35, the spring 34 is compressed, the side angle of the conical seal 36 is the same as the inner cavity angle of the sand spreader shell 41, the conical seal 36 enables the sand outlet to be sealed off, the sand leakage prevention effect is achieved, after cleaning is finished, the gate valve 25 is opened, the negative pressure pipe 11 is closed, the rotary cylinder 31 drives the cam 32 to rotate reversely by 90 degrees, the spring 34 resets, the conical seal 36 is made to ascend, the sand outlet is opened, normal sand paving is conducted again, and the sand paving and cleaning are conducted in a sand paving link and a cleaning link and the following steps are conducted in a circulating mode.
Specifically, the anti-leakage sanding device comprises the following specific steps:
s1: opening a stirring wheel motor 24, then opening a gate valve 25, adding sand into the three-way joint 23, driving a driving end of the stirring wheel motor 24 to drive a screw rod 22 to rotate, transmitting the sand in the three-way joint 23 to the inside of a sand spreader shell 41 by the screw rod 22 until the sand is filled, and starting a vibration component 42 to vibrate the sand spreader shell 41 to discharge the sand in the sand spreader shell 41 from a lower sand outlet so that the sand spreader can spread the sand normally;
s2: after the normal sanding of the sand paver is finished, the gate valve 25 is closed, and the negative pressure pipe 11 is opened, so that negative pressure is generated inside the sand paver shell 41, and the load of sand is reduced;
s3: the rotating cylinder 31 drives the cam 32 to rotate 90 degrees, the conical seal 36 moves downwards under the extrusion of the cam 32, the middle shaft of the spring connecting plate 33 is guided by the inner hole of the spring supporting plate 35 to compress the spring 34, the angle of the side surface of the conical seal 36 is the same as that of the inner cavity of the sand paver shell 41, so that the conical seal 36 seals the sand outlet, and the sand pavement is cleaned through the sand scraping plate 43 at the bottom of the sand paver shell 41;
s4: after cleaning, the gate valve 25 is opened, the negative pressure pipe 11 is closed, the rotating cylinder 31 drives the cam 32 to rotate in the reverse direction by 90 degrees, the spring 34 is reset, the conical seal 36 rises, the sand outlet is opened, and normal sand paving is carried out again.
In this embodiment, S1 to S4 are a link of sanding and cleaning, and the steps of S1 to S4 are followed.
Specifically, the sanding device cover plate 12 is mounted on the top of the sanding device housing 41, and the sanding device cover plate 12 and the sanding device housing 41 are mounted in a sealing manner.
In this embodiment, the sand layer cover plate 12 and the sand layer housing 41 are hermetically mounted, so that the sand layer housing 41 can generate negative pressure through the negative pressure pipe 11, the load of sand is reduced, and the sand leakage prevention effect is achieved.
Specifically, one end of the three-way joint 23, which is far away from the stirring wheel motor 24, is communicated with one side of the sand-spreading device shell 41, the screw rod 22 is positioned inside the three-way joint 23 and the sand-spreading device shell 41, and the bearing 21 is fixedly installed inside the side wall of one side of the sand-spreading device shell 41, which is far away from the three-way joint 23.
In this embodiment, the gate valve 25 is opened to add sand into the three-way joint 23, the driving end of the stirring wheel motor 24 drives the screw rod 22 to rotate, and the screw rod 22 transmits the sand in the three-way joint 23 to the inside of the sand spreader shell 41 until the sand is filled.
Specifically, the rotary cylinder 31 is mounted on one side of the sander housing 41, the tapered seal 36 is located directly below the cam 32, and the spring support plate 35 is fixedly mounted inside the sander housing 41.
In this embodiment, the rotary cylinder 31 drives the cam 32 to rotate, the tapered seal 36 can move downward under the extrusion of the cam 32, and the middle shaft of the spring connecting plate 33 compresses the spring 34 under the guidance of the inner hole of the spring supporting plate 35.
Specifically, the bottom of the sand spreader shell 41 is provided with two sand scraping plates 43, and the lower sand port is located between the two sand scraping plates 43.
In this embodiment, the sand inside the sand spreader case 41 is discharged from the sand outlet for sand spreading, and the sand scraper 43 is used to level the sand discharged from the sand outlet.
The working principle and the using process of the invention are as follows: the stirring wheel motor 24 is opened, then the gate valve 25 is opened, sand is added into the three-way joint 23, the driving end of the stirring wheel motor 24 drives the screw rod 22 to rotate, the screw rod 22 transmits the sand in the three-way joint 23 into the sand spreader shell 41 until the sand is full, the vibration component 42 is started to vibrate the sand spreader shell 41, so that the sand in the sand spreader shell 41 is discharged from a lower sand port, the sand spreader is spread normally, when the sand spreader is in a cleaning position, the gate valve 25 is closed, the negative pressure pipe 11 is opened, negative pressure is generated in the sand spreader shell 41, the load of the sand is reduced, the sand leakage prevention effect is achieved, when the negative pressure is generated, the rotary cylinder 31 drives the cam 32 to rotate 90 degrees, the conical seal 36 moves downwards under the extrusion of the cam 32, the middle shaft of the spring connecting plate 33 is guided by the inner hole of the spring supporting plate 35, the spring 34 is compressed, the side angle of the conical seal 36 is the same as the inner cavity angle of the sand spreader shell 41, the toper seals 36 and so makes the sand mouth under the sealing, plays the leak protection sand effect, clears up the sanding through the scraping plate 43 of sanding device casing 41 bottom, cleans the back that finishes, opens push-pull valve 25, closes negative pressure pipe 11, and revolving cylinder 31 drives cam 32 reverse rotation 90, and spring 34 resets for toper seals 36 rises, and lower sand mouth is opened, carries out normal sanding once more, and this is a sanding, cleans the link, the above step of follow-up circulation.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a leak protection sanding device, includes negative pressure device (10), transmission device (20), toper closing device (30) and sand-laying ware main part (40), its characterized in that: the negative pressure device (10) is arranged at the top of the sand spreader main body (40), the transmission device (20) is arranged on the inner side and the outer side of the sand spreader main body (40), and the conical sealing devices (30) are arranged on the inner side and the outer side of the sand spreader main body (40);
the negative pressure device (10) comprises a negative pressure pipe (11), and a sand-laying device cover plate (12) is fixedly arranged at the bottom of the negative pressure pipe (11);
the transmission device (20) comprises a three-way joint (23), a gate valve (25) is movably mounted at the top of the three-way joint (23), a stirring wheel motor (24) is fixedly mounted at one end of the three-way joint (23), a screw rod (22) is fixedly mounted at the driving end of the stirring wheel motor (24), and a bearing (21) is fixedly mounted on the outer side of one end, far away from the stirring wheel motor (24), of the screw rod (22);
the conical sealing device (30) comprises a rotary cylinder (31) and a conical seal (36), a cam (32) is fixedly mounted at the output end of the rotary cylinder (31), a spring connecting plate (33) is fixedly mounted at the bottom of the conical seal (36), a spring (34) is fixedly mounted at the bottom of the spring connecting plate (33), and a spring supporting plate (35) is fixedly mounted at one end, far away from the spring connecting plate (33), of the spring (34);
the sand paving device comprises a sand paving device main body (40) and is characterized in that the sand paving device main body (40) comprises a sand paving device shell (41), a vibration component (42) is fixedly mounted on one side of the sand paving device shell (41), and a sand scraping plate (43) is fixedly mounted at the bottom of the sand paving device shell (41).
2. A leak-proof sanding device according to claim 1, characterized in that: the leak-proof sand paving device comprises the following specific steps:
s1: opening a stirring wheel motor (24), then opening a gate valve (25), adding sand into the three-way joint (23), driving a driving end of the stirring wheel motor (24) to drive a screw rod (22) to rotate, transmitting the sand in the three-way joint (23) to the inside of a sand spreader shell (41) by the screw rod (22) until the sand is full, and starting a vibration component (42) to vibrate the sand spreader shell (41) to discharge the sand in the sand spreader shell (41) from a lower sand outlet so as to normally spread the sand by the sand spreader;
s2: after the normal sanding of the sand spreader is finished, the gate valve (25) is closed, and the negative pressure pipe (11) is opened, so that negative pressure is generated inside the sand spreader shell (41), and the load of the sand is reduced;
s3: the rotary cylinder 31 drives the cam 32 to rotate 90 degrees, the conical seal (36) moves downwards under the extrusion of the cam (32), the spring (34) is compressed by the middle shaft of the spring connecting plate (33) under the guidance of the inner hole of the spring supporting plate (35), the angle of the side surface of the conical seal (36) is the same as that of the inner cavity of the sand spreader shell (41), so that the conical seal (36) seals a sand outlet, and sand spreading is cleaned through a sand scraping plate (43) at the bottom of the sand spreader shell (41);
s4: after cleaning, the gate valve (25) is opened, the negative pressure pipe (11) is closed, the rotating cylinder (31) drives the cam (32) to rotate in the reverse direction for 90 degrees, the spring (34) resets, the conical seal (36) rises, the sand outlet is opened, and normal sand paving is carried out again.
3. A leak-proof sanding device according to claim 1, characterized in that: the sand spreader cover plate (12) is arranged at the top of the sand spreader shell (41), and the sand spreader cover plate (12) and the sand spreader shell (41) are arranged in a sealing way.
4. A leak-proof sanding device according to claim 1, characterized in that: one end of the three-way joint (23) far away from the stirring wheel motor (24) is communicated with one side of the sand spreader shell (41), the screw rod (22) is located inside the three-way joint (23) and the sand spreader shell (41), and the bearing (21) is fixedly installed inside the side wall of one side of the sand spreader shell (41) far away from the three-way joint (23).
5. A leak-proof sanding device according to claim 1, characterized in that: the rotary air cylinder (31) is installed on one side of the sand paver shell (41), the conical seal (36) is located under the cam (32), and the spring support plate (35) is fixedly installed inside the sand paver shell (41).
6. A leak-proof sanding device according to claim 1, characterized in that: the bottom of the sand paving device shell (41) is provided with two sand scraping plates (43), and the lower sand opening is positioned between the two sand scraping plates (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010617073.0A CN113926990A (en) | 2020-06-30 | 2020-06-30 | Leak-proof sand paving device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010617073.0A CN113926990A (en) | 2020-06-30 | 2020-06-30 | Leak-proof sand paving device and method |
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| CN113926990A true CN113926990A (en) | 2022-01-14 |
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| CN202010617073.0A Pending CN113926990A (en) | 2020-06-30 | 2020-06-30 | Leak-proof sand paving device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115106481A (en) * | 2022-07-15 | 2022-09-27 | 南京航空航天大学 | Double-roller synchronous fine-adjustment quantitative controllable sand mold additive manufacturing sand paving method and device |
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| CN108655341A (en) * | 2018-07-26 | 2018-10-16 | 共享智能装备有限公司 | A kind of lower sand device of 3DP printings vibration and its adjustment method for vibrating sanding |
| CN210754965U (en) * | 2019-08-29 | 2020-06-16 | 共享智能装备有限公司 | Sand laying device |
| CN212285769U (en) * | 2020-06-30 | 2021-01-05 | 烟台冰轮智能机械科技有限公司 | Leak protection sanding device |
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| CN115106481A (en) * | 2022-07-15 | 2022-09-27 | 南京航空航天大学 | Double-roller synchronous fine-adjustment quantitative controllable sand mold additive manufacturing sand paving method and device |
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