CN213568506U - Metallurgical vibration screening machine material feeding unit - Google Patents
Metallurgical vibration screening machine material feeding unit Download PDFInfo
- Publication number
- CN213568506U CN213568506U CN202021392273.2U CN202021392273U CN213568506U CN 213568506 U CN213568506 U CN 213568506U CN 202021392273 U CN202021392273 U CN 202021392273U CN 213568506 U CN213568506 U CN 213568506U
- Authority
- CN
- China
- Prior art keywords
- screening machine
- motor
- switch
- feeding
- fixedly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012216 screening Methods 0.000 title claims abstract description 80
- 239000000463 material Substances 0.000 title claims abstract description 22
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 238000007873 sieving Methods 0.000 claims description 21
- 238000001035 drying Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 abstract description 24
- 239000000843 powder Substances 0.000 abstract description 23
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model discloses a metallurgical vibration screening machine material feeding unit relates to screening machine technical field, and it includes the bottom plate, the upper surface of bottom plate and the lower fixed surface of pay-off case are connected, the upper surface of pay-off case and first drive arrangement's lower fixed surface are connected, the output shaft of first drive arrangement and the top fixed connection of pivot, two bearings have been cup jointed respectively to the surface of pivot, and two bearings joint upper surface and the lower surface at the pay-off incasement wall respectively, the surface joint of pivot has helical blade. This metallurgical vibration screening machine material feeding unit through the second motor, cam, screening machine, spring, first motor, pivot, helical blade, first feed inlet, first through-hole, pay-off case and the discharging pipe between mutually supporting to realized the autoloading to metal powder, makeed not need the staff to climb to the feed inlet of eminence and carry out the material loading, thereby brought the convenience for staff's work.
Description
Technical Field
The utility model relates to a screening machine technical field specifically is a metallurgical vibration screening machine material feeding unit.
Background
The process of dividing the material to be crushed into different size fractions by one or more layers of screening surface is called screening. The sieving machine is a vibrating sieving mechanical device which utilizes the relative movement of bulk materials and a sieve surface to lead partial particles to penetrate through sieve pores and divide materials such as sand, gravel, broken stone and the like into different grades according to the particle size. The screening process of the screening machine is generally continuous, after screening raw materials are fed onto a screening machine (called a screen for short), materials smaller than the size of the screen holes penetrate through the screen holes and are called undersize products; material larger than the mesh size is continuously discharged from the screening surface and is referred to as oversize product.
Before some metal powder metallurgy, need sieve these metal powder, but traditional screening machine does not have autoloading's function for need the staff to carry out the material loading at the feed inlet, and the feed inlet of screening machine generally sets up on the screening machine, makes the staff carry out the pay-off very inconvenient, consequently, an urgent need for a metallurgical vibration screening machine material feeding unit.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a metallurgical vibration screening machine material feeding unit has solved the screening machine and has carried out metallurgical before some metal powder, needs to sieve these metal powder, but traditional screening machine does not have autoloading's function for need the staff to carry out the material loading at the feed inlet, and the feed inlet of screening machine generally sets up on the screening machine, make the staff carry out the very inconvenient problem of pay-off.
(II) technical scheme
In order to achieve the above purpose, the utility model adopts the technical proposal that: the utility model provides a metallurgical vibration screening machine material feeding unit, includes the bottom plate, the upper surface of bottom plate and the lower fixed surface of pay-off case are connected, the upper surface of pay-off case and first drive arrangement's lower fixed surface are connected, the output shaft of first drive arrangement and the top fixed connection of pivot, two bearings have been cup jointed respectively to the surface of pivot, and two bearings joint respectively at the upper surface and the lower surface of pay-off incasement wall, the surface joint of pivot has helical blade, the left surface of pay-off incasement wall is provided with a plurality of dry lamp respectively.
The left side of the feeding box is communicated with the right side of the first feeding hole through a first through hole, the right side of the first feeding hole is fixedly connected with the left side of the feeding box, the right side of the feeding box is communicated with the left end of the discharging pipe, a sliding groove is formed in the right side of the feeding box, a sliding block is connected in the sliding groove in a sliding mode, the right side of the sliding block is fixedly connected with the left side of the screening machine, the upper surface of the screening machine is communicated with the lower surface of the second feeding hole, the second feeding hole is located below the discharging pipe, a screening plate and an inclined plate are arranged on the inner surface of the screening machine respectively, and two second through holes are formed in the right side of the screening machine and in positions corresponding to the screening plate and the.
The lower surface of the screening machine is fixedly connected with the upper surface of the bottom plate through two telescopic rods, a spring is sleeved on the outer surface of each telescopic rod, the two ends of the spring are respectively fixedly connected with the lower surface of the screening machine and the upper surface of the bottom plate, the upper surface of the bottom plate is fixedly connected with the lower surface of the second driving device, a cam is clamped on the outer surface of an output shaft of the second driving device, the upper surface of the cam is in lap joint with the lower surface of the screening machine, a third through hole is formed in the upper surface of the bottom plate, and the third through hole is located below the cam.
Preferably, the first driving device comprises a first motor, an output shaft of the first motor is fixedly connected with the top end of the rotating shaft, and the upper surface of the first motor is fixedly connected with the upper surface of the feeding box through the case.
Preferably, the second driving device comprises a second motor, the lower surface of the second motor is fixedly connected with the upper surface of the base plate through a fixing plate, and an output shaft of the second motor is clamped on the inner surface of the cam.
Preferably, the left side surface of the feeding box is fixedly connected with the right side surface of the power supply, and the left side surface of the power supply is provided with a first switch, a second switch and a third switch respectively.
Preferably, the output end of the power supply is respectively and electrically connected with the input ends of the first switch, the second switch and the third switch through conducting wires, and the output ends of the first switch, the second switch and the third switch are respectively and electrically connected with the input ends of the first motor, the second motor and the drying lamp through conducting wires.
Preferably, the inner surface of the second through hole is provided with an internal thread, the outer surface of the stop block is provided with an external thread, the stop block is connected into the second through hole in a threaded mode, the left side face of the stop block is in lap joint with the right side face of the screening machine, and the right side face of the stop block is provided with a handle.
(III) advantageous effects
The beneficial effects of the utility model reside in that:
1. the feeding device of the metallurgical vibrating screening machine comprises a second motor, a cam, a screening machine, a spring, a first motor, a rotating shaft, a spiral blade, a first feeding hole, a first through hole, a feeding box and a discharging pipe which are matched with each other, when metal powder needs to be screened, a worker controls the second motor to work, so that an output shaft of the second motor rotates to drive the cam to rotate, when the top end of the cam is in contact with the screening machine, the cam drives the screening machine to move upwards, when the top end of the cam is far away from the screening machine, the spring pulls the screening machine to move downwards by utilizing the self-pulling force, the second motor works ceaselessly to drive the screening machine to move upwards and downwards, the first motor is controlled to work, the rotating shaft and the spiral blade are driven to rotate by the first motor, so that the spiral blade rotates to drive the metal powder in the first feeding hole to, make helical blade drive the metal powder that needs the screening rebound in the pay-off incasement for the metal powder that helical blade will need the screening falls into the screening machine through the discharging pipe, thereby realized the autoloading to metal powder, makes and does not need the staff to climb to the feed inlet of eminence and carries out the material loading, thereby brought the convenience for staff's work.
2. This metallurgical vibration screening machine material feeding unit is provided with the dry lamp through the inner wall at the pay-off case for the pay-off case is when transmitting metal powder, and the moisture that contains in the metal powder can be absorb in the work of dry lamp, thereby has avoided some metal powder in the screening process because the problem that the moisture gathers together influences the screening effect.
3. This metallurgical vibration screening machine material feeding unit through setting up quick-witted case to can cover first motor, avoid the dust to float into in the first motor and influence first motor life's problem, thereby ensure first motor's life.
Drawings
Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;
fig. 2 is a schematic structural diagram of a second motor in a top view;
fig. 3 is an enlarged schematic structural diagram of a position a of the present invention.
In the figure: the device comprises a base plate 1, a feeding box 2, a first driving device 3, a first motor 31, a case 32, a rotating shaft 4, a bearing 5, a helical blade 6, a drying lamp 7, a first through hole 8, a first feeding hole 9, a discharging pipe 10, a sliding chute 11, a sliding block 12, a sieving machine 13, a second feeding hole 14, a sieving plate 15, a sloping plate 16, a second through hole 17, a stop 18, a handle 19, a telescopic rod 20, a spring 21, a second driving device 22, a second motor 221, a fixing plate 222, a cam 23, a third through hole 24, a power supply 25, a first switch 26, a second switch 27 and a third switch 28.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-3, the utility model provides a technical solution: a feeding device of a metallurgical vibrating screening machine comprises a bottom plate 1, wherein the upper surface of the bottom plate 1 is fixedly connected with the lower surface of a feeding box 2, the upper surface of the feeding box 2 is fixedly connected with the lower surface of a first driving device 3, the first driving device 3 comprises a first motor 31, an output shaft of the first motor 31 is fixedly connected with the top end of a rotating shaft 4, the upper surface of the first motor 31 is fixedly connected with the upper surface of the feeding box 2 through a machine box 32, the first motor 31 can be covered by arranging the machine box 32, the problem that the service life of the first motor 31 is influenced by dust floating into the first motor 31 is avoided, the service life of the first motor 31 is ensured, the output shaft of the first driving device 3 is fixedly connected with the top end of the rotating shaft 4, the outer surface of the rotating shaft 4 is respectively sleeved with two bearings 5, and the two bearings 5 are respectively clamped on the upper surface and the lower surface of the inner wall of the feeding box 2, the outer surface of the rotating shaft 4 is clamped with a helical blade 6, the helical blade 6 is arranged, so that the helical blade 6 can rotate to drive metal powder in the feeding box 2 to move upwards, the left side surface of the inner wall of the feeding box 2 is respectively provided with a plurality of drying lamps 7, the drying lamps 7 are arranged on the inner wall of the feeding box 2, so that when the feeding box 2 transmits the metal powder, the drying lamps 7 can absorb moisture contained in the metal powder, the problem that the screening effect is influenced because some metal powder is condensed together due to humidity in the screening process is avoided, the left side surface of the feeding box 2 is fixedly connected with the right side surface of a power supply 25, the left side surface of the power supply 25 is respectively provided with a first switch 26, a second switch 27 and a third switch 28, the output end of the power supply 25 is respectively and electrically connected with the input ends of the first switch 26, the second switch 27 and the third switch 28 through, the output ends of the first switch 26, the second switch 27 and the third switch 28 are respectively electrically connected with the input ends of the first motor 31, the second motor 221 and the drying lamp 7 through conducting wires, the first switch 26 is arranged to control the first motor 31, the second switch 27 is arranged to control the second motor 221 and the third switch 28 to control the drying lamp 7, and therefore a worker can conveniently control the first motor 31, the second motor 221 and the drying lamp 7 through the first switch 26, the second switch 27 and the third switch 28.
The left side surface of the feeding box 2 is communicated with the right side surface of a first feeding hole 9 through a first through hole 8, the right side surface of the first feeding hole 9 is fixedly connected with the left side surface of the feeding box 2, the right side surface of the feeding box 2 is communicated with the left end of a discharging pipe 10, the right side surface of the feeding box 2 is provided with a sliding groove 11, a sliding block 12 is connected in the sliding groove 11 in a sliding way, through mutual matching between the sliding groove 11 and the sliding block 12, the sliding block 12 can be driven to move up and down in the sliding groove 11 when the sieving machine 13 moves up and down, so that the sieving machine 13 can move up and down more stably, the right side surface of the sliding block 12 is fixedly connected with the left side surface of the sieving machine 13, the upper surface of the sieving machine 13 is communicated with the lower surface of a second feeding hole 14, the second feeding hole 14 is positioned below the discharging pipe, the feasible screening board 15 that can drive when screening machine 13 reciprocates simultaneously removes, thereby can sieve the metal powder in the screening machine 13, two second through-holes 17 have been seted up respectively with screening board 15 and the corresponding position of swash plate 16 to the right flank of screening machine 13, the internal surface of second through-hole 17 is provided with the internal thread, the surface of dog 18 is provided with the external screw thread, dog 18 threaded connection is in second through-hole 17, the left surface of dog 18 and the right flank overlap joint of screening machine 13, the right flank of dog 18 is provided with handle 19, through setting up dog 18 and handle 19, after the screening is accomplished, the staff can open second through-hole 17 through twisting two handles 19 respectively, make two parts of material after the screening can discharge through two second through-holes 17 respectively.
The lower surface of the sieving machine 13 is fixedly connected with the upper surface of the bottom plate 1 through two telescopic rods 20, the telescopic rods 20 are arranged, so that the sieving machine 13 is more stable to move up and down, the springs 21 are sleeved on the outer surfaces of the telescopic rods 20, the springs 21 are arranged, so that when the top end of the cam 23 is separated from the lower surface of the sieving machine 13, the springs 21 can pull the sieving machine 13 to move downwards by using the pulling force of the springs 21, the two ends of the springs 21 are respectively fixedly connected with the lower surface of the sieving machine 13 and the upper surface of the bottom plate 1, the upper surface of the bottom plate 1 is fixedly connected with the lower surface of the second driving device 22, the second driving device 22 comprises a second motor 221, the lower surface of the second motor 221 is fixedly connected with the upper surface of the bottom plate 1 through a fixing plate 222, the output shaft of the second motor 221 is clamped on the inner, the staff controls second motor 221 work, make the output shaft of second motor 221 rotate and drive cam 23 and rotate, when the top of cam 23 and screening machine 13 contact, cam 23 drives screening machine 13 upward movement, when screening machine 13 is kept away from on the top of cam 23, spring 21 utilizes the pulling force pulling screening machine 13 downstream of self, second motor 221 does not work ceaselessly, just drive screening machine 13 ceaselessly and reciprocates, thereby sieve metal powder, the surface joint of second drive arrangement 22 output shaft has cam 23, the upper surface of cam 23 and the lower surface overlap joint of screening machine 13, third through-hole 24 has been seted up to the upper surface of bottom plate 1, third through-hole 24 is located the below of cam 23.
The utility model discloses an operating procedure does:
s1, when the sieving machine 13 needs to be fed, controlling the first motor 31 to work, enabling the first motor 31 to rotate to drive the rotating shaft 4 and the helical blade 6 to rotate, enabling the helical blade 6 to rotate to drive metal powder in the first feeding hole 9 to fall into the feeding box 2 through the first through hole 8, enabling the helical blade 6 to drive the metal powder needing to be sieved to move upwards in the feeding box 2, enabling the helical blade 6 to enable the metal powder needing to be sieved to fall into the sieving machine 13 through the discharging pipe 10, and accordingly achieving automatic feeding of the sieving machine 13;
s2, when the metal powder needs to be screened, a worker controls the second motor 221 to work, so that the output shaft of the second motor 221 rotates to drive the cam 23 to rotate, when the top end of the cam 23 is in contact with the screening machine 13, the cam 23 drives the screening machine 13 to move upwards, when the top end of the cam 23 is far away from the screening machine 13, the spring 21 pulls the screening machine 13 to move downwards by virtue of the pulling force of the spring 21, the second motor 221 continuously works to drive the screening machine 13 to continuously move upwards and downwards, and therefore the metal powder is screened;
s3, after the sieving is completed, the worker can open the two second through holes 17 by twisting the two handles 19, respectively, so that the sieved two materials can be discharged through the two second through holes 17, respectively.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a metallurgical vibration screening machine material feeding unit, includes bottom plate (1), its characterized in that: the upper surface of the bottom plate (1) is fixedly connected with the lower surface of the feeding box (2), the upper surface of the feeding box (2) is fixedly connected with the lower surface of a first driving device (3), an output shaft of the first driving device (3) is fixedly connected with the top end of a rotating shaft (4), the outer surface of the rotating shaft (4) is respectively sleeved with two bearings (5), the two bearings (5) are respectively clamped on the upper surface and the lower surface of the inner wall of the feeding box (2), the outer surface of the rotating shaft (4) is clamped with a spiral blade (6), and the left side surface of the inner wall of the feeding box (2) is respectively provided with a plurality of drying lamps (7);
the left side surface of the feeding box (2) is communicated with the right side surface of the first feeding hole (9) through a first through hole (8), the right side surface of the first feed inlet (9) is fixedly connected with the left side surface of the feeding box (2), the right side surface of the feeding box (2) is communicated with the left end of the discharge pipe (10), the right side surface of the feeding box (2) is provided with a sliding chute (11), a slide block (12) is connected in the chute (11) in a sliding way, the right side surface of the slide block (12) is fixedly connected with the left side surface of the sieving machine (13), the upper surface of the sieving machine (13) is communicated with the lower surface of the second feeding hole (14), the second feeding hole (14) is positioned below the discharging pipe (10), the inner surface of the sieving machine (13) is respectively provided with a sieving plate (15) and an inclined plate (16), two second through holes (17) are respectively formed in the positions, corresponding to the screening plate (15) and the inclined plate (16), on the right side surface of the screening machine (13);
the lower surface of screening machine (13) is connected with the upper surface fixed connection of bottom plate (1) through two telescopic links (20), spring (21) have been cup jointed to the surface of telescopic link (20), the both ends of spring (21) are connected with the lower surface of screening machine (13) and the upper surface fixed connection of bottom plate (1) respectively, the upper surface of bottom plate (1) is connected with the lower surface fixed connection of second drive arrangement (22), the surface joint of second drive arrangement (22) output shaft has cam (23), the upper surface of cam (23) and the lower surface overlap joint of screening machine (13), third through-hole (24) have been seted up to the upper surface of bottom plate (1), third through-hole (24) are located the below of cam (23).
2. The feeding device of the metallurgical vibrating screening machine according to claim 1, characterized in that: the first driving device (3) comprises a first motor (31), an output shaft of the first motor (31) is fixedly connected with the top end of the rotating shaft (4), and the upper surface of the first motor (31) is fixedly connected with the upper surface of the feeding box (2) through a machine box (32).
3. The feeding device of the metallurgical vibrating screen machine according to claim 2, characterized in that: the second driving device (22) comprises a second motor (221), the lower surface of the second motor (221) is fixedly connected with the upper surface of the bottom plate (1) through a fixing plate (222), and an output shaft of the second motor (221) is clamped on the inner surface of the cam (23).
4. The feeding device of the metallurgical vibrating screen machine according to claim 3, characterized in that: the left side surface of the feeding box (2) is fixedly connected with the right side surface of a power supply (25), and the left side surface of the power supply (25) is provided with a first switch (26), a second switch (27) and a third switch (28) respectively.
5. The feeding device of the metallurgical vibrating screen machine according to claim 4, characterized in that: the output end of the power supply (25) is electrically connected with the input ends of the first switch (26), the second switch (27) and the third switch (28) through conducting wires respectively, and the output ends of the first switch (26), the second switch (27) and the third switch (28) are electrically connected with the input ends of the first motor (31), the second motor (221) and the drying lamp (7) through conducting wires respectively.
6. The feeding device of the metallurgical vibrating screening machine according to claim 1, characterized in that: the inner surface of the second through hole (17) is provided with an internal thread, the outer surface of the stop block (18) is provided with an external thread, the stop block (18) is in threaded connection with the second through hole (17), the left side surface of the stop block (18) is in lap joint with the right side surface of the screening machine (13), and the right side surface of the stop block (18) is provided with a handle (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021392273.2U CN213568506U (en) | 2020-07-15 | 2020-07-15 | Metallurgical vibration screening machine material feeding unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021392273.2U CN213568506U (en) | 2020-07-15 | 2020-07-15 | Metallurgical vibration screening machine material feeding unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213568506U true CN213568506U (en) | 2021-06-29 |
Family
ID=76551475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021392273.2U Expired - Fee Related CN213568506U (en) | 2020-07-15 | 2020-07-15 | Metallurgical vibration screening machine material feeding unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213568506U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472157A (en) * | 2021-12-29 | 2022-05-13 | 新沂市紫金硅业有限公司 | Screening mechanism for processing high-purity fused quartz |
-
2020
- 2020-07-15 CN CN202021392273.2U patent/CN213568506U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472157A (en) * | 2021-12-29 | 2022-05-13 | 新沂市紫金硅业有限公司 | Screening mechanism for processing high-purity fused quartz |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108325824B (en) | A useless stone dust sieve separator for producing cement | |
| CN212596011U (en) | Automatic sand screening device with crushing function | |
| CN212820400U (en) | Crushing equipment for coal carbonization | |
| CN208407287U (en) | A kind of coal washing crusher feeding structure | |
| CN213568506U (en) | Metallurgical vibration screening machine material feeding unit | |
| CN208743009U (en) | A kind of multiple exit vibrating screen | |
| CN213032954U (en) | Sieving machine with screen cloth anti-sticking device | |
| CN111841766A (en) | System is selected separately to stale refuse treatment back different particle size building stones | |
| CN209362670U (en) | A kind of crushing device of attapulgite | |
| CN212576371U (en) | Efficient ceramic waste breaker | |
| CN219334324U (en) | Adjustable industrial powder grinding equipment | |
| CN205628594U (en) | Reinforced efficient fodder shale shaker that makes things convenient for | |
| CN211865799U (en) | Continuous vibration screening device | |
| CN209613511U (en) | A kind of low-noise vibration screen for screening of aggregate | |
| CN109950466B (en) | Full-automatic production equipment for lithium ion battery anode material | |
| CN218107780U (en) | Crushing device for coal grading and quality-grading treatment | |
| CN210303845U (en) | Calcium oxide deep processing system | |
| CN210906949U (en) | Multifunctional material classifier | |
| CN205110082U (en) | Production of ginger powder is with shale shaker of adjustable sieve gradient | |
| CN210253097U (en) | Automatic change screening plant | |
| CN204220436U (en) | Mining multiple coil cartridge type vibratory sieve | |
| CN114082484A (en) | Raw materials screening blending device is used in production of nanometer rubber sealing strip | |
| CN102873021A (en) | Roller-type rotary spiral vibrating sieving machine | |
| CN207126804U (en) | Adjustable, plane roto-siofter | |
| CN203862532U (en) | Novel sand sieving machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210629 |