CN112456150B - Pneumatic type 3D prints powder package workstation of unloading - Google Patents

Pneumatic type 3D prints powder package workstation of unloading Download PDF

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Publication number
CN112456150B
CN112456150B CN202011218762.0A CN202011218762A CN112456150B CN 112456150 B CN112456150 B CN 112456150B CN 202011218762 A CN202011218762 A CN 202011218762A CN 112456150 B CN112456150 B CN 112456150B
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China
Prior art keywords
box body
powder
block
pipe
pneumatic type
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CN202011218762.0A
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Chinese (zh)
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CN112456150A (en
Inventor
石亚栋
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Shanghai Ruixian Information Technology Co ltd
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Shanghai Ruixian Information Technology Co ltd
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Publication of CN112456150A publication Critical patent/CN112456150A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/24—Gas suction systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/36—Arrangements of containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/52—Adaptations of pipes or tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/20—Auxiliary treatments, e.g. aerating, heating, humidifying, deaerating, cooling, de-watering or drying, during loading or unloading; Loading or unloading in a fluid medium other than air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04—Bulk

Abstract

The invention discloses a pneumatic type 3D printing powder bag unloading workstation which comprises a box body, wherein a supporting block is fixedly welded on the side wall of the box body, an electric push rod is fixedly installed at the lower end of the supporting block through a fixing frame, a feeding hole is formed in the side wall of the box body, a bar-shaped limiting block with an L-shaped cross section is fixedly welded on one side, located at the feeding hole, of the outer wall of the box body, a lifting baffle is slidably installed inside the bar-shaped limiting block, a connecting block is fixedly welded on one side of the lifting baffle, and the connecting block is fixedly installed at one end of a piston rod of the electric push rod. When the powder forming barrel of the 3D printer needs to be cleaned, the powder forming barrel can be placed on the lifting platform assembly, the lifting baffle is driven by the electric push rod to seal the feed port 4, the environment cannot be polluted due to dust emission during cleaning to a certain extent, and the powder forming barrel can be rapidly cooled.

Description

Pneumatic type 3D prints powder package workstation of unloading
Technical Field
The invention belongs to the technical field of 3D printing powder bag unloading, and particularly relates to a pneumatic type 3D printing powder bag unloading workstation.
Background
SLS 3D printing is a generic term for additive manufacturing techniques that add material layer by layer to produce three-dimensional objects, and its core principle is: the three-dimensional cylindrical coordinate system is manufactured in a layered mode and overlapped layer by layer, is similar to the process of triple integration of cylindrical coordinates in advanced mathematics, is different from the traditional material reduction manufacturing mode, is used for fusing and communicating technologies such as machinery, materials, computers, communication, control technologies, biomedicine and the like through a 3D printing technology, has the advantages of shortening the product development period, reducing the research and development cost, integrally manufacturing workpieces with complex shapes and the like, and can have important influence on the production mode of the manufacturing industry and the life style of human beings in the future.
After SLS 3D printed technology processing is accomplished, the machine-shaping bucket need be placed and is cleared up at the workstation of unloading, because the powder temperature is higher when taking out in the machine-shaping bucket, need just can clear up after its cooling, prior art is through natural cooling, but this mode cooling cycle is longer to raise dust has caused certain pollution to the environment in the clearance dust in-process, for this reason we propose a pneumatic type 3D and print the powder package workstation of unloading and solve the problem that exists among the prior art.
Disclosure of Invention
The invention aims to provide a pneumatic type 3D printing powder bag unloading workstation, which aims to solve the problems that the cooling period is long and the environment is polluted to a certain extent by dust in the dust cleaning process in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pneumatic type 3D printing powder bag unloading workstation comprises a box body, wherein a supporting block is fixedly welded on the side wall of the box body, an electric push rod is fixedly installed at the lower end of the supporting block through a fixing frame, a feeding hole is formed in the side wall of the box body, a bar-shaped limiting block with an L-shaped cross section is fixedly welded on one side of the feeding hole and on the outer wall of the box body, a lifting baffle is slidably installed inside the bar-shaped limiting block, a connecting block is fixedly welded on one side of the lifting baffle, the connecting block is fixedly installed at one end of a piston rod of the electric push rod, a lifting platform assembly is fixedly arranged inside the box body, a fixing assembly used for fixing a powder forming barrel of a 3D printer is arranged on the lifting platform assembly, a temperature sensor is arranged on the side wall of the box body, and a temperature measuring probe of the temperature sensor penetrates through the box body and is located inside the box body, the top of the box body is provided with a heat radiation fan, an air suction opening of the heat radiation fan is positioned in the box body, a filtering cover body is arranged in the box body, a first supporting plate and a second supporting plate are fixedly welded on the side wall of the box body respectively, a powder suction assembly is arranged on the lower surface of the first supporting plate, a material suction opening of the powder suction assembly is positioned in the box body, a powder sieve assembly is fixedly arranged on the second supporting plate, and a discharge end of the powder suction assembly is communicated with a feed end of the powder sieve assembly through a connecting pipe;
the lifting platform assembly comprises an air cylinder, a supporting flat plate and a limit stop, a partition plate is arranged in the box body, the air cylinder is positioned below the partition plate, one end of a piston rod of the air cylinder penetrates through the partition plate and is fixedly connected to the lower surface of the supporting flat plate, the fixing assembly is fixedly installed on the supporting flat plate, the limit stop is fixedly installed on the inner wall of the box body through a connecting column, and the limit stop is positioned on one side of the supporting flat plate;
the fixed assembly comprises a fixed clamping block, a movable clamping block and a positioning block, the fixed clamping block and the positioning block are both fixedly arranged at the upper end of the supporting flat plate, one side of the positioning block is fixedly provided with a spring column, the movable clamping block is fixedly arranged at one end of the spring column, and the movable clamping block and the fixed clamping block are arranged correspondingly;
the powder material pumping assembly comprises a powder conveying pump and a material pumping cover body, the material pumping cover body is fixedly arranged in the box body through a supporting rod, one end of the material pumping cover body is communicated with a material pumping pipe, and one end of the material pumping pipe penetrates through the box body and is communicated with the feeding end of the powder conveying pump;
the powder screening subassembly comprises a screening cylinder, a screen and a vibrator, wherein the upper end of the screening cylinder is provided with a feeding pipe, the discharge end of the powder delivery pump is communicated with the feeding pipe through a connecting pipe, the screen is fixedly installed inside the screening cylinder, and the vibrator is fixedly installed at the lower end of the screen.
Preferably, the upper end of the box body is provided with a vent pipe, and the vent pipe is provided with a check valve.
Preferably, the cylinder sets up to two effect cylinders, and all communicates the intake pipe on two sets of air inlets of cylinder, and is two sets of the one end of intake pipe runs through the outside that the box is located the box respectively, and is two sets of all install the pneumatic valve in the intake pipe.
Preferably, the partition plate is provided with a through hole for a cylinder piston rod to pass through, a sealing ring is fixedly bonded inside the through hole, and the outer wall of the cylinder piston rod is attached to the inner ring of the sealing ring.
Preferably, the screening cylinder is provided with a first discharge pipe and a second discharge pipe respectively, the first discharge pipe is located at the lower end of the screening cylinder and used for discharging screened powder, and the second discharge pipe is located on the side wall of the screening cylinder and used for discharging unqualified screened powder.
Preferably, the side wall of the lifting baffle is provided with a pulley, and the pulley is located inside the strip-shaped limiting block.
Preferably, the side walls of the movable clamping block opposite to the fixed clamping block are provided with anti-skidding teeth.
Preferably, the spring post includes outer tube, interior pole, sliding block and compression spring, compression spring is located the inside of outer tube, and compression spring's both ends are contradicted respectively in the interior bottom of sliding block and outer tube, interior pole fixed welding is on the lateral wall of sliding block, and the one end of interior pole is located the outside of outer tube.
The invention has the technical effects and advantages that: compared with the prior art, the pneumatic type 3D printing powder bag unloading workstation provided by the invention has the following advantages:
according to the invention, the lifting platform assembly is arranged in the box body, the lifting baffle plate is arranged on one side of the side wall feed inlet of the box body, when the 3D printer powder forming barrel needs to be cleaned, the powder forming barrel can be placed on the lifting platform assembly, the lifting baffle plate is driven by the electric push rod to seal the feed inlet 4, the environment pollution caused by dust can not be caused during cleaning to a certain extent, the powder forming barrel can be rapidly cooled by arranging the heat dissipation fan at the top of the box body, after the powder forming barrel is cooled to a specified temperature, the supporting flat plate is jacked up by the air cylinder, the powder forming barrel is lifted to the position of the powder pumping assembly, and powder on the powder forming barrel is pumped and injected into the powder sieve assembly to be sieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic structural view of a fixing assembly of the present invention;
FIG. 4 is a schematic structural view of the powder screen assembly of the present invention;
FIG. 5 is a schematic structural view of the bar-shaped limiting block of the present invention;
fig. 6 is a schematic structural view of the spring post of the present invention.
In the figure: 1. a box body; 2. a support block; 3. an electric push rod; 4. a feed inlet; 5. a strip-shaped limiting block; 6. a lifting baffle plate; 7. connecting blocks; 8. a lifting platform assembly; 9. a fixing assembly; 10. a temperature sensor; 11. a heat radiation fan; 12. a filtering cover body; 13. a first support plate; 14. a second support plate; 15. a powder material pumping component; 16. a powder screen subassembly; 17. a cylinder; 18. supporting the flat plate; 19. a limit stop block; 20. a partition plate; 21. fixing the fixture block; 22. a movable clamping block; 23. positioning blocks; 24. a spring post; 25. a powder delivery pump; 26. a material pumping cover body; 27. a material pumping pipe; 28. a screening cylinder; 29. screening a screen; 30. a vibrator; 31. a feed pipe; 32. a vent pipe; 33. a check valve; 34. an air inlet pipe; 35. an air valve; 36. a through hole; 37. a seal ring; 38. a first discharge pipe; 39. a second discharge pipe; 40. a pulley; 41. anti-slip teeth; 42. an outer tube; 43. an inner rod; 44. a slider; 45. compressing the spring.
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. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. 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.
The invention provides a pneumatic type 3D printing powder bag discharging workstation shown in figures 1-6, which comprises a box body 1, wherein a supporting block 2 is fixedly welded on the side wall of the box body 1, an electric push rod 3 is fixedly installed at the lower end of the supporting block 2 through a fixing frame, a feeding hole 4 is formed in the side wall of the box body 1, a strip-shaped limiting block 5 with an L-shaped cross section is fixedly welded on one side of the feeding hole 4 on the outer wall of the box body 1, a lifting baffle 6 is slidably installed in the strip-shaped limiting block 5, a connecting block 7 is fixedly welded on one side of the lifting baffle 6, a pulley 40 is arranged on the side wall of the lifting baffle 6, the pulley 40 is positioned in the strip-shaped limiting block 5, the connecting block 7 is fixedly installed at one end of a piston rod of the electric push rod 3, a lifting platform assembly 8 is fixedly arranged in the box body 1, and a fixing assembly 9 for fixing a 3D printer powder forming barrel is arranged on the lifting platform assembly 8, a temperature sensor 10 is arranged on the side wall of the box body 1, a temperature measuring probe of the temperature sensor 10 penetrates through the box body 1 and is positioned inside the box body 1, a heat radiation fan 11 is arranged at the top of the box body 1, a suction opening of the heat radiation fan 11 is positioned inside the box body 1, a filtering cover body 12 is arranged inside the box body 1, a first supporting plate 13 and a second supporting plate 14 are fixedly welded on the side wall of the box body 1 respectively, a powder suction component 15 is arranged on the lower surface of the first supporting plate 13, a suction opening of the powder suction component 15 is positioned inside the box body 1, a powder sieve sub component 16 is fixedly arranged on the second supporting plate 14, and the discharge end of the powder suction component 15 is communicated with the feed end of the powder sieve sub component 16 through a connecting pipe; through the design, when the 3D printer powder forming barrel needs to be cleaned, a series of operations of temperature measurement, quick cooling, powder pumping and screening can be realized, and when the 3D printer powder forming barrel is cleaned, the environment cannot be polluted due to dust emission to a certain extent;
the spring column 24 comprises an outer tube 42, an inner rod 43, a sliding block 44 and a compression spring 45, the compression spring 45 is positioned inside the outer tube 42, two ends of the compression spring 45 respectively abut against the sliding block 44 and the inner bottom of the outer tube 42, the inner rod 43 is fixedly welded on the side wall of the sliding block 44, and one end of the inner rod 43 is positioned outside the outer tube 42;
the lifting platform assembly 8 comprises an air cylinder 17, a supporting flat plate 18 and a limit stop 19, a partition plate 20 is arranged inside the box body 1, the air cylinder 17 is positioned below the partition plate 20, one end of a piston rod of the air cylinder 17 penetrates through the partition plate 20 and is fixedly connected to the lower surface of the supporting flat plate 18, the fixing assembly 9 is fixedly installed on the supporting flat plate 18, the limit stop 19 is fixedly installed on the inner wall of the box body 1 through a connecting column, and the limit stop 19 is positioned on one side of the supporting flat plate 18; through the design, after the powder forming barrel is cooled to a specified temperature, the supporting flat plate 18 is jacked to the position of the material pumping cover body 26 through the air cylinder 17, so that powder can be conveniently pumped through the material pumping cover body 26;
the air cylinder 17 is a double-acting air cylinder, two groups of air inlets of the air cylinder 17 are communicated with air inlet pipes 34, one ends of the two groups of air inlet pipes 34 penetrate through the box body 1 and are positioned outside the box body 1, air valves 35 are mounted on the two groups of air inlet pipes 34, a through hole 36 for a piston rod of the air cylinder 17 to pass through is formed in the partition plate 20, a sealing ring 37 is fixedly bonded inside the through hole 36, and the outer wall of the piston rod of the air cylinder 17 is attached to the inner ring of the sealing ring 37; by the design, the sealing ring 37 ensures that the space at the lower end of the partition plate 20 cannot enter powder, so that the cylinder 17 can work normally;
the fixing assembly 9 comprises a fixed fixture block 21, a movable fixture block 22 and a positioning block 23, the fixed fixture block 21 and the positioning block 23 are both fixedly mounted at the upper end of the support flat plate 18, a spring post 24 is fixedly mounted at one side of the positioning block 23, the movable fixture block 22 is fixedly mounted at one end of the spring post 24, the movable fixture block 22 is arranged corresponding to the fixed fixture block 21, and anti-skid teeth 41 are arranged on the side walls of the movable fixture block 22 opposite to the fixed fixture block 21; through the design, after the powder forming barrel is placed on the supporting flat plate 18, the powder forming barrel can be fixed in an auxiliary mode through the fixed clamping blocks 21 and the movable clamping blocks 22, and the powder forming barrel is prevented from toppling over during cleaning;
the powder pumping assembly 15 comprises a powder conveying pump 25 and a pumping cover 26, the pumping cover 26 is fixedly arranged inside the box body 1 through a support rod, one end of the pumping cover 26 is communicated with a pumping pipe 27, and one end of the pumping pipe 27 penetrates through the box body 1 and is communicated with the feeding end of the powder conveying pump 25;
the powder screening component assembly 16 comprises a screening cylinder 28, a screen 29 and a vibrator 30, wherein the upper end of the screening cylinder 28 is provided with a feeding pipe 31, the discharging end of the powder conveying pump 25 is communicated with the feeding pipe 31 through a connecting pipe, the screen 29 is fixedly arranged inside the screening cylinder 28, the vibrator 30 is fixedly arranged at the lower end of the screen 29, the screening cylinder 28 is respectively provided with a first discharging pipe 38 and a second discharging pipe 39, the first discharging pipe 38 is positioned at the lower end of the screening cylinder 28 and used for discharging screened powder, and the second discharging pipe 39 is positioned on the side wall of the screening cylinder 28 and used for discharging unqualified powder;
the upper end of the box body 1 is provided with a vent pipe 32, and the vent pipe 32 is provided with a check valve 33.
The working principle is as follows: through the inside at box 1 is provided with lift platform subassembly 8, and be provided with lifting baffle 6 in 4 one sides of the lateral wall feed inlet of box 1, when needs are cleared up 3D printer powder shaping bucket, can place powder shaping bucket on lift platform subassembly 8, and drive lifting baffle 6 through electric putter 3 and seal feed inlet 4, ensured to a certain extent can not cause the pollution to the environment because of the raise dust when clearing up, and be provided with cooling fan 11 through the top at box 1, can cool off powder shaping bucket fast, after powder shaping bucket cools off to appointed temperature, will support dull and stereotyped 18 jack-up through cylinder 17, let powder shaping bucket rise to the powder and take out 15 subassembly positions of subassembly, extract the powder on the powder shaping bucket and pour into and sieve in the powder sieve subassembly 16.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (8)

1. The utility model provides a pneumatic type 3D prints powder package workstation of unloading, includes box (1), its characterized in that: the powder forming machine is characterized in that a supporting block (2) is fixedly welded on the side wall of the box body (1), an electric push rod (3) is fixedly installed at the lower end of the supporting block (2) through a fixing frame, a feeding hole (4) is formed in the side wall of the box body (1), a bar-shaped limiting block (5) with an L-shaped cross section is fixedly welded on one side, located on the feeding hole (4), of the outer wall of the box body (1), a lifting baffle (6) is slidably installed inside the bar-shaped limiting block (5), a connecting block (7) is fixedly welded on one side of the lifting baffle (6), the connecting block (7) is fixedly installed at one end of a piston rod of the electric push rod (3), a lifting platform assembly (8) is fixedly arranged inside the box body (1), and a fixing assembly (9) used for fixing a 3D printer powder forming barrel is arranged on the lifting platform assembly (8), a temperature sensor (10) is arranged on the side wall of the box body (1), a temperature measuring probe of the temperature sensor (10) penetrates through the box body (1) and is positioned in the box body (1), the top of the box body (1) is provided with a heat radiation fan (11), the suction opening of the heat radiation fan (11) is positioned inside the box body (1), and a filtering cover body (12) is arranged in the box body (1), a first supporting plate (13) and a second supporting plate (14) are respectively fixedly welded on the side wall of the box body (1), the lower surface of the first supporting plate (13) is provided with a powder material pumping component (15), and the material pumping port of the powder material pumping component (15) is positioned in the box body (1), a powder sieve subassembly (16) is fixedly arranged on the second supporting plate (14), the discharge end of the powder material pumping assembly (15) is communicated with the feed end of the powder material screening assembly (16) through a connecting pipe;
the lifting platform assembly (8) comprises an air cylinder (17), a supporting flat plate (18) and a limit stop (19), a partition plate (20) is arranged inside the box body (1), the air cylinder (17) is located below the partition plate (20), one end of a piston rod of the air cylinder (17) penetrates through the partition plate (20) and is fixedly connected to the lower surface of the supporting flat plate (18), the fixing assembly (9) is fixedly installed on the supporting flat plate (18), the limit stop (19) is fixedly installed on the inner wall of the box body (1) through a connecting column, and the limit stop (19) is located on one side of the supporting flat plate (18);
the fixing assembly (9) comprises a fixing fixture block (21), a movable fixture block (22) and a positioning block (23), the fixing fixture block (21) and the positioning block (23) are fixedly mounted at the upper end of the supporting flat plate (18), a spring column (24) is fixedly mounted on one side of the positioning block (23), the movable fixture block (22) is fixedly mounted at one end of the spring column (24), and the movable fixture block (22) is arranged corresponding to the fixing fixture block (21);
the powder pumping assembly (15) comprises a powder conveying pump (25) and a pumping cover body (26), the pumping cover body (26) is fixedly arranged inside the box body (1) through a supporting rod, one end of the pumping cover body (26) is communicated with a pumping pipe (27), and one end of the pumping pipe (27) penetrates through the box body (1) and is communicated with the feeding end of the powder conveying pump (25);
the powder screening subassembly (16) comprises a screening cylinder (28), a screen (29) and a vibrator (30), wherein a feeding pipe (31) is arranged at the upper end of the screening cylinder (28), the discharging end of the powder conveying pump (25) is communicated with the feeding pipe (31) through a connecting pipe, the screen (29) is fixedly installed inside the screening cylinder (28), and the vibrator (30) is fixedly installed at the lower end of the screen (29).
2. The pneumatic type 3D printing powder bag discharging workstation according to claim 1, characterized in that: the upper end of the box body (1) is provided with a ventilation pipe (32), and the ventilation pipe (32) is provided with a check valve (33).
3. The pneumatic type 3D printing powder bag discharging workstation according to claim 1, characterized in that: the air cylinder (17) is arranged to be a double-acting air cylinder, the two sets of air inlets of the air cylinder (17) are communicated with air inlet pipes (34), one ends of the air inlet pipes (34) penetrate through the outer portion, located on the box body (1), of the box body (1) respectively, and the air inlet pipes (34) are provided with air valves (35).
4. The pneumatic type 3D printing powder bag discharging workstation according to claim 1, characterized in that: the partition plate (20) is provided with a through hole (36) for a piston rod of the air cylinder (17) to pass through, a sealing ring (37) is fixedly bonded in the through hole (36), and the outer wall of the piston rod of the air cylinder (17) is attached to the inner ring of the sealing ring (37).
5. The pneumatic type 3D printing powder bag discharging workstation according to claim 1, characterized in that: the screening cylinder (28) is provided with a first discharging pipe (38) and a second discharging pipe (39) respectively, the first discharging pipe (38) is located at the lower end of the screening cylinder (28) and used for discharging screened powder, and the second discharging pipe (39) is located on the side wall of the screening cylinder (28) and used for discharging unqualified screened powder.
6. The pneumatic type 3D printing powder bag discharging workstation according to claim 1, characterized in that: be provided with pulley (40) on the lateral wall of lift baffle (6), pulley (40) are located the inside of bar stopper (5).
7. The pneumatic type 3D printing powder bag discharging workstation according to claim 1, characterized in that: anti-skidding teeth (41) are arranged on the side walls of the movable clamping block (22) opposite to the fixed clamping block (21).
8. The pneumatic type 3D printing powder bag discharging workstation according to claim 1, characterized in that: spring post (24) include outer tube (42), interior pole (43), sliding block (44) and compression spring (45), compression spring (45) are located the inside of outer tube (42), and the both ends of compression spring (45) are contradicted respectively in the interior bottom of sliding block (44) and outer tube (42), interior pole (43) fixed welding is on the lateral wall of sliding block (44), and the one end of interior pole (43) is located the outside of outer tube (42).
CN202011218762.0A 2020-11-04 2020-11-04 Pneumatic type 3D prints powder package workstation of unloading Active CN112456150B (en)

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