CN209438686U - A kind of silicon material crusher - Google Patents
A kind of silicon material crusher Download PDFInfo
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- CN209438686U CN209438686U CN201822127050.2U CN201822127050U CN209438686U CN 209438686 U CN209438686 U CN 209438686U CN 201822127050 U CN201822127050 U CN 201822127050U CN 209438686 U CN209438686 U CN 209438686U
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- discaling roll
- silicon material
- connecting rod
- discaling
- drive
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Abstract
A kind of silicon material crusher, it is related to artificial lens and is crushed field, the utility model drives breaker roll to make rotary motion by discaling roll driving motor (4) by gear drive, bar-link drive drives breaker roll to make pendulum motion, silicon rod is bitten when drive connecting rod moves to opening degree maximum, then the impact and extruding being collectively formed by breaker roll and bar-link drive keep silicon rod broken, when drive connecting rod opening degree minimum, silicon material is flowed out from discaling roll, the utility model can realize that silicon rod is broken, particle size after cracking is uniform, broken silico briquette granularity is small, it pollutes small, work efficiency is high, the features such as silicon face metal impurity con is small, effectively reduce labor intensity, make the metallic contaminants from surface content of silicon material well below hand breaking, greatly improve product quality, effectively reduce enterprise's production cost etc., for the industrialization of polycrystalline silicon material, from Dynamic metaplasia production provides guarantees, and the utility model is particularly suitable for large-scale promotion and application with reasonable in design.
Description
[technical field] the utility model relates to artificial lens to be crushed field, and in particular to a kind of silicon material crusher.
[background technique]
Known, with the continuous advantage of photovoltaic policy, the usage amount of crystalline silicon is also increasing, in production crystalline silicon
When, when carrying out crystalline silicon drawing especially with Czochralski furnace or ingot furnace, used in raw silicon need at thousand grades or ten thousand grades
By the way that silicon material is manually broken into blocky or graininess with hammer in toilet, and in shattering process, metal, non-gold are had
Category, house dust etc. are in contact with silicon material, at this time if controlling the cleanliness of bad surface of crystalline silicon, in subsequent pulling process
In can exist pollution, directly affect the minority carrier life time of crystal after drawing or ingot casting, further influence the conversion of further battery piece
Efficiency causes component to be decayed in power generation process seriously, influences generated energy etc., and traditional hand breaking mode was crushed in silicon material
Exist in journey following insufficient:
1, more silicon powder pollution can cause very big injury to employee's physical and mental health；
2, it is more to generate foam material quantity, influences materiel machining yield rate；
3, materials from spattering can cause damages to employee's inherently safe in shattering process, and easily cause mutually due to splashing
Mixing phenomenon；
4, crushing efficiency is lower；
5, traditional independent sieve material is in lines or artificial separation is larger to employee's physical effects and efficiency is more low.
Existing crushing process is not since safety is high, efficiency is lower, execute-in-place is in disorder, especially to large batch of silicon material
Processing cannot form pipeline mode operation, therefore, develop easy to operate, low manufacture cost, it is attractive and durable and to silicon material without two
The silicon material crusher of secondary pollution is used for small lot or large quantities of silicon material processings, improvement and life to silicon material processing technique
The promotion for producing production capacity has very positive meaning.
[summary of the invention]
In view of deficiency present in background technique, the utility model discloses a kind of silicon material crushers, and the utility model can
The features such as realization silicon rod is broken, and particle size after cracking is uniform, and pollution is small, and work efficiency is high, and silicon face metal impurity con is small, effectively
Labor intensity is reduced, pollution when reducing hand breaking during transhipment etc. to silicon material contains the metallic contaminants from surface of silicon material
Amount greatly improves product quality, effectively reduces enterprise's production cost etc. well below hand breaking.
In order to realize the purpose of foregoing invention, the utility model adopts the following technical solution:
A kind of silicon material crusher, including discaling roll driving mechanism, discaling roll mechanism, bar-link drive and rack, in the machine
Frame is equipped with discaling roll mechanism, the power output end in the discaling roll mechanism in discaling roll transmission shaft connection discaling roll driving mechanism, discaling roll
Transmission shaft drives two discaling roll axis relative rotation in discaling roll mechanism, is equipped at intervals with plurality of pins on the outer edge surface of each discaling roll axis
Ring, the both ends of each discaling roll axis, which are separately connected bar-link drive, to be realized and does circular swing motion by two discaling roll axis to form the silicon material broken
Broken machine.
The silicon material crusher, the discaling roll driving mechanism is spaced and parallel to be set as two sets, every set discaling roll driving mechanism
In discaling roll driving motor be fixed on the rack, the power output axis connection fluid coupling of the discaling roll driving motor
Input shaft, the input shaft of the output shaft connection discaling roll speed reducer of fluid coupling, the output shaft of discaling roll speed reducer pass through shaft coupling
Connect the left end of discaling roll transmission shaft.
The silicon material crusher, the discaling roll driving motor are arranged on discaling roll motor adjusting seat A, the discaling roll motor
Adjusting seat A is arranged on discaling roll motor adjusting seat B, and the discaling roll motor adjusting seat B is arranged on the rack, the setting of discaling roll speed reducer
On discaling roll speed reducer adjusting seat A, the discaling roll speed reducer adjusting seat A is arranged on discaling roll speed reducer adjusting seat B, the discaling roll
Speed reducer adjusting seat B is arranged on the rack.
The silicon material crusher, the discaling roll mechanism include discaling roll drive bearing block, discaling roll transmission gear, rod teeth
It takes turns, from moving frame, ring gear, discaling roll transmission shaft and discaling roll axis, the discaling roll transmission shaft is set to two, each discaling roll transmission shaft
Both ends pass through discaling roll drive bearing block respectively and be arranged on the rack, be respectively equipped with company in the left and right ends of each discaling roll transmission shaft
Bar gear, the outer edge surface of discaling roll transmission shaft is plugged on respectively from the upper of moving frame between each link gear and discaling roll drive bearing block
In driven station B, every two from discaling roll axis is respectively equipped between moving frame, the both ends of the discaling roll axis are plugged on two from moving frame respectively
Upper driven station A in, each discaling roll axis and discaling roll transmission shaft are spaced and parallel setting, are distinguished in each discaling roll axis left and right ends
Equipped with discaling roll transmission gear, the discaling roll transmission gear and link gear engaged transmission, on the outer edge surface of each discaling roll axis between
Former and later two breaker rolls are formed every being equipped with plurality of pins ring, are each separately connected bar-link drive from the lower active station of moving frame
In intermediate connecting rod.
The silicon material crusher, it is described from the shape of moving frame be triangle, triangle from three angles of moving frame distinguish
Equipped with bearing mounting hole, be respectively equipped in each bearing mounting hole bearing formed upper driven station A, upper driven station B and under
Active station.
The silicon material crusher is socketed with discaling roll set on the outer edge surface in the middle part of the discaling roll axis, in discaling roll set
It is equipped at intervals with a plurality of ring gears on outer edge surface, is respectively equipped with ring gear inner sleeve on the outer edge surface that discaling roll covers between two ring gears,
Ring gear housing is socketed on the outer edge surface of each ring gear inner sleeve.
Sheath A and shield are respectively sleeved on the outer edge surface of the silicon material crusher, the discaling roll transmission shaft and discaling roll axis
Cover B.
The outside of the silicon material crusher, two breaker roll is equipped with shield, is equipped on the top of the shield
Feed intake storehouse, and suction inlet is equipped on the storehouse that feeds intake.
The silicon material crusher, the bar-link drive include gearbox, intermediate connecting rod, drive connecting rod, connecting rod electricity
Machine shaft coupling and connecting rod driving motor, the gearbox are set as two, and two gearboxes are separately positioned on rack front and rear sides
Lower part, the power output shaft of the power intake connection connecting rod driving motor of gearbox, two power output ends of gearbox point
Not Tong Guo connecting rod motor coupler connect drive connecting rod, each drive connecting rod is separately connected intermediate connecting rod.
The right side of the silicon material crusher, the rack is equipped with shield.
Due to the adoption of the above technical scheme, the utility model has the following beneficial effects:
The utility model drives breaker roll to make rotary motion, bar-link drive by discaling roll driving motor by gear drive
It drives breaker roll to make pendulum motion, silicon rod is bitten when drive connecting rod moves to opening degree maximum, then pass through breaker roll and company
Impact that bar driving mechanism is collectively formed and extruding keep silicon rod broken, and when drive connecting rod opening degree minimum, silicon material is from discaling roll stream
Out, the utility model can realize that silicon rod is broken, and particle size after cracking is uniform, and broken silico briquette granularity is small, and pollution is small, and work efficiency is high, silicon
The features such as metallic contaminants from surface pollution is small effectively reduces labor intensity, to silicon during transhipment etc. when reducing hand breaking
The pollution of material makes the metallic contaminants from surface content of silicon material well below hand breaking, greatly improves product quality, effectively
Enterprise's production cost etc. is reduced, provides guarantee for industrialization, the automated production of polycrystalline silicon material, the utility model has knot
Structure design rationally, is particularly suitable for large-scale promotion and application.
[Detailed description of the invention]
Fig. 1 is the schematic perspective view of the utility model；
Fig. 2 is another schematic perspective view of the utility model；
Fig. 3 is the vertical view schematic cross-sectional view of the utility model；
In figure: 1, shaft coupling；2, discaling roll speed reducer；3, fluid coupling；4, discaling roll driving motor；5, discaling roll speed reducer
Adjusting seat A；6, discaling roll speed reducer adjusting seat B；7, discaling roll motor adjusting seat A；8, discaling roll motor adjusting seat B；9, feed intake storehouse；10,
Suction inlet；11, discaling roll drive bearing block；12, shield；13, discaling roll transmission gear；14, link gear；15, from moving frame；16,
Intermediate connecting rod；17, drive connecting rod；18, connecting rod motor coupler；19, rack；20, connecting rod driving motor；21, hoisting ring；22,
Sheath A；23, silicon rod；24, ring gear；25, ring gear housing；26, sheath B；27, shield；28, bearing A；29, bearing B；30, discaling roll
Transmission shaft；31, bearing C；32, discaling roll axis；33, ring gear inner sleeve；34, discaling roll set.
[specific embodiment]
With reference to the following examples, the utility model can be explained in greater detail；But the utility model is not limited to
These embodiments.
Firstly the need of explanation, "upper" that the utility model is used in description scheme, "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, is merely for convenience of description and simplification description, rather than the device or element of indication or suggestion meaning there must be spy
Fixed orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
A kind of silicon material crusher in conjunction with described in attached drawing 1~3, including discaling roll driving mechanism, discaling roll mechanism, connecting rod driving machine
Structure and rack 19 are equipped with discaling roll mechanism in the rack 19, and discaling roll transmission shaft 30 connects discaling roll driving in the discaling roll mechanism
Power output end in mechanism, discaling roll transmission shaft 30 drives two discaling roll axis, 32 relative rotation in discaling roll mechanism, in each discaling roll axis
A plurality of ring gears 24 are equipped at intervals on 32 outer edge surface, the both ends of each discaling roll axis 32 are separately connected bar-link drive and realize two
Discaling roll axis 32 does circular swing motion and forms the silicon material crusher.
In the specific implementation, the discaling roll driving mechanism is set as a set of or spaced and parallel is set as two the utility model
Set, specific choice can be selected according to the actual situation, and when being set as a set of, transmission, this reality can be realized by train
It is stated in detail for being set as two sets with novel, the discaling roll driving motor 4 in every set discaling roll driving mechanism is fixedly installed
In rack 19, the input shaft of the power output axis connection fluid coupling 3 of the discaling roll driving motor 4, the coupling fluid-structure
Device 3 is torque-limiting hydraulic coupler, the input shaft of the output shaft connection discaling roll speed reducer 2 of fluid coupling 3, discaling roll speed reducer 2
Output shaft by shaft coupling 1 connect discaling roll transmission shaft 30 left end.Further, in order to realize fine position, in the discaling roll
Driving motor 4 is arranged on discaling roll motor adjusting seat A7, and the discaling roll motor adjusting seat A7 is arranged in discaling roll motor adjusting seat B8
On, the discaling roll motor adjusting seat B8 is arranged in rack 19, and discaling roll speed reducer 2 is arranged on discaling roll speed reducer adjusting seat A5,
The discaling roll speed reducer adjusting seat A5 is arranged on discaling roll speed reducer adjusting seat B6, and the discaling roll speed reducer adjusting seat B6 setting exists
In rack 19.
Further, the discaling roll mechanism include discaling roll drive bearing block 11, discaling roll transmission gear 13, link gear 14, from
Moving frame 15, ring gear 24, discaling roll transmission shaft 30 and discaling roll axis 32, the discaling roll transmission shaft 30 are set to two, each discaling roll
The both ends of transmission shaft 30 pass through discaling roll drive bearing block 11 respectively and are arranged in rack 19, in discaling roll drive bearing block 11 and discaling roll
Bearing A28 is equipped between transmission shaft 30, the bearing A28 is cylinder roller bearing, in the left and right two of each discaling roll transmission shaft 30
End is respectively equipped with link gear 14, the outer edge surface of discaling roll transmission shaft 30 between each link gear 14 and discaling roll drive bearing block 11
It is plugged on out of, upper driven station B of the moving frame 15 respectively, every two from being respectively equipped with discaling roll axis 32, the discaling roll between moving frame 15
The both ends of axis 32 are plugged on two out of, upper driven station A of the moving frame 15 respectively, between each discaling roll axis 32 and discaling roll transmission shaft 30 are
Every being arranged in parallel, be respectively equipped with discaling roll transmission gear 13 in each 32 left and right ends of discaling roll axis, the discaling roll transmission gear 13 with
14 engaged transmission of link gear, a plurality of formation of ring gears 24 are equipped at intervals on the outer edge surface of each discaling roll axis 32, and former and later two are broken
Broken roller is each separately connected the intermediate connecting rod 16 in bar-link drive from the lower active station of moving frame 15.
Wherein the shape of the driven frame 15 is triangle, is respectively equipped with bearing peace from three angles of moving frame 15 in triangle
Hole is filled, bearing is respectively equipped in each bearing mounting hole and forms upper driven station A, upper driven station B and lower active station, i.e.,
Bearing B29 can be set in upper driven station B, bearing C31 is set in upper driven station A.32 middle part of discaling roll axis
It is socketed with discaling roll set 34 on outer edge surface, a plurality of ring gears 24 are equipped at intervals on the outer edge surface of discaling roll set 34, in two teeth
It is respectively equipped with ring gear inner sleeve 33 on the outer edge surface of discaling roll set 34 between ring 24, is socketed on the outer edge surface of each ring gear inner sleeve 33
Ring gear housing 25.Ring gear 24, ring gear housing 25 are all made of tungsten-cobalt series hard alloy and are made.The discaling roll transmission shaft 30 and discaling roll axis
It is respectively sleeved on sheath A22 on 32 outer edge surface and sheath B26, the sheath A22 and sheath B26 are the rubber materials such as nylon,
It is preferred that polyethylene, polypropylene, polytetrafluoroethylene (PTFE), polyurethane, ethylene tetrafluoroethylene copolymer, perfluoroalkoxy resin copolymer etc.
Very pure rubber or plastics can reduce the pollution to silicon material when broken in this way.The outside of two breaker roll is equipped with anti-
Shield 12 is equipped with the storehouse 9 that feeds intake on the top of the shield 12, has been screwed the rubber materials such as nylon on the inside of the storehouse 9 that feeds intake,
Suction inlet 10 is equipped on the storehouse 9 that feeds intake.
Further, the bar-link drive includes gearbox, intermediate connecting rod 16, drive connecting rod 17, connecting rod motor shaft coupling
Device 18 and connecting rod driving motor 20, the gearbox are set as two, and two gearboxes are separately positioned on 19 front and rear sides of rack
Lower part, gearbox power intake connection connecting rod driving motor 20 power output shaft, two power output ends of gearbox
Drive connecting rod 17 is connected by connecting rod motor coupler 18 respectively, each drive connecting rod 17 is separately connected intermediate connecting rod 16.
Further, the right side of the rack 19 is equipped with shield 27, and shield 27 is made of steel part, adopts close to 12 part of shield
With rubber materials such as nylon.
In the specific implementation, the centre of discaling roll axis 32 is connected by key discaling roll set 34 to the utility model, in discaling roll set 34
Upper gap is equipped with ring gear 24, is connected by key transmission between ring gear 24 and discaling roll set 34, and covering 34 circumferencial directions in discaling roll has Buddhist nun
The ring gear inner sleeve 33 of the rubber materials such as dragon.
Further, hinged by one end of pin shaft, bearing and intermediate connecting rod 16 from about 15 active station of moving frame, centre connects
16 one end of bar is hinged by pin shaft, bearing and drive connecting rod 17, and drive connecting rod 17 passes through connecting rod motor coupler 18 and gearbox
Power output axis connection.The equal left-right and front-back of above-mentioned articulated structure is symmetrical.
Further, in order to improve the stability and safety that the utility model is run, in discaling roll driving mechanism, discaling roll machine
It is equipped with the protective cover with safeguard function above structure, bar-link drive, the crusher chamber of breaker roll is formed by shield 12, is prevented
The inside of shield 12 has been screwed the rubber materials such as nylon.
Further, the utility model is when being moved, can be a plurality of convenient for lifting by being arranged in rack 19
Hoisting ring 21.
The working process of the utility model is as follows: after broken silicon rod 23 will be needed to enter crusher chamber by the storehouse 9 that feeds intake, by discaling roll
Driving motor 4 drives the discaling roll for being covered with hard-metal insert to make rotary motion by gear drive, and bar-link drive drives broken
Roller makees pendulum motion.Drive connecting rod 17 bites silicon rod 23 when moving to opening degree maximum, then driven by breaker roll and connecting rod
Impact that mechanism is collectively formed and extruding keep silicon rod 23 broken, and when 17 opening degree minimum of drive connecting rod, broken silicon material is from two
Enter Material collecting box for harvesting or screening plant below breaker roll, broken rear silicon material is sieved by screening plant.It should be noted that this
The electric control system that utility model is related to is not the protection point of the utility model, and applicant is directed to the control system separately Shen
Patent is reported, therefore tired state is not done to its specific structure.
The non-detailed portion of the utility model is the prior art.
The embodiment selected herein to disclose the goal of the invention of the utility model, is presently considered to be suitable,
However, it should be understood that the utility model is intended to include all changes for the embodiment that all belong in this design and invention scope
Change and improves.
Claims (10)
1. a kind of silicon material crusher, including discaling roll driving mechanism, discaling roll mechanism, bar-link drive and rack (19), feature
It is: is equipped with discaling roll mechanism on the rack (19), discaling roll transmission shaft (30) connects discaling roll driving mechanism in the discaling roll mechanism
In power output end, discaling roll transmission shaft (30) drive discaling roll mechanism in two discaling roll axis (32) relative rotation, in each discaling roll axis
(32) it is equipped at intervals on outer edge surface a plurality of ring gears (24), the both ends of each discaling roll axis (32) are separately connected bar-link drive
Realize that two discaling roll axis (32) do circular swing motion and form the silicon material crusher.
2. silicon material crusher as described in claim 1, it is characterized in that: the discaling roll driving mechanism is spaced and parallel to be set as two
It covers, the discaling roll driving motor (4) in every set discaling roll driving mechanism is fixed on rack (19), the discaling roll driving motor
(4) output shaft of the input shaft of power output axis connection fluid coupling (3), fluid coupling (3) connects discaling roll speed reducer
(2) input shaft, the left end that the output shaft of discaling roll speed reducer (2) passes through shaft coupling (1) connection discaling roll transmission shaft (30).
3. silicon material crusher as claimed in claim 2, it is characterized in that: the discaling roll driving motor (4) is arranged in discaling roll motor
Adjusting seat A(7) on, the discaling roll motor adjusting seat A(7) be arranged in discaling roll motor adjusting seat B(8) on, the discaling roll motor tune
Bed rearrangement B(8) it is arranged on rack (19), discaling roll speed reducer (2) is arranged in discaling roll speed reducer adjusting seat A(5) on, the discaling roll subtracts
Fast machine adjusting seat A(5) be arranged in discaling roll speed reducer adjusting seat B(6) on, the discaling roll speed reducer adjusting seat B(6) it is arranged in rack
(19) on.
4. silicon material crusher as described in claim 1, it is characterized in that: the discaling roll mechanism includes discaling roll drive bearing block
(11), discaling roll transmission gear (13), link gear (14), from moving frame (15), ring gear (24), discaling roll transmission shaft (30) and discaling roll axis
(32), the discaling roll transmission shaft (30) is set to two, and the both ends of each discaling roll transmission shaft (30) are passed by discaling roll respectively
Dynamic bearing seat (11) is arranged on rack (19), is respectively equipped with link gear in the left and right ends of each discaling roll transmission shaft (30)
(14), the outer edge surface of discaling roll transmission shaft (30) is plugged on respectively between each link gear (14) and discaling roll drive bearing block (11)
Out of, upper driven station B of the moving frame (15), every two from being respectively equipped with discaling roll axis (32) between moving frame (15), the discaling roll axis
(32) both ends are plugged on two out of, upper driven station A of the moving frame (15) respectively, each discaling roll axis (32) and discaling roll transmission shaft
(30) it is spaced and parallel setting, is respectively equipped with discaling roll transmission gear (13), the discaling roll in each discaling roll axis (32) left and right ends
Transmission gear (13) and link gear (14) engaged transmission, are equipped at intervals with plurality of pins on the outer edge surface of each discaling roll axis (32)
Ring (24) forms former and later two breaker rolls, is each separately connected in bar-link drive from the lower active station of moving frame (15)
Between connecting rod (16).
5. silicon material crusher as claimed in claim 4, it is characterized in that: it is described from the shape of moving frame (15) be triangle, three
It is angular to be respectively equipped with bearing mounting hole from three angles of moving frame (15), it is respectively equipped with bearing in each bearing mounting hole and is formed
Driven station A, upper driven station B and lower active station.
6. silicon material crusher as claimed in claim 4, it is characterized in that: being socketed on outer edge surface in the middle part of the discaling roll axis (32)
Discaling roll set (34) is equipped at intervals with a plurality of ring gears (24) on the outer edge surface of the discaling roll set (34), two ring gears (24) it
Between discaling roll set (34) outer edge surface on be respectively equipped with ring gear inner sleeve (33), be socketed on the outer edge surface of each ring gear inner sleeve (33)
Ring gear housing (25).
7. silicon material crusher as claimed in claim 4, it is characterized in that: the discaling roll transmission shaft (30) and discaling roll axis (32) is outer
Edge is respectively sleeved on sheath A(22 on face) and sheath B(26).
8. silicon material crusher as claimed in claim 4, it is characterized in that: the outside of two breaker roll is equipped with shield (12),
It is equipped with and feeds intake storehouse (9) on the top of the shield (12), be equipped with suction inlet (10) on the storehouse that feeds intake (9).
9. silicon material crusher as described in claim 1, it is characterized in that: the bar-link drive includes that gearbox, centre connect
Bar (16), drive connecting rod (17), connecting rod motor coupler (18) and connecting rod driving motor (20), the gearbox are set as two
A, two gearboxes are separately positioned on the lower part of rack (19) front and rear sides, the power intake connection connecting rod driving of gearbox
The power output shaft of motor (20), two power output ends of gearbox pass through connecting rod motor coupler (18) connection respectively and actively connect
Bar (17), each drive connecting rod (17) are separately connected intermediate connecting rod (16).
10. silicon material crusher as described in claim 1, it is characterized in that: the right side of the rack (19) is equipped with shield (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822127050.2U CN209438686U (en) | 2018-12-18 | 2018-12-18 | A kind of silicon material crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822127050.2U CN209438686U (en) | 2018-12-18 | 2018-12-18 | A kind of silicon material crusher |
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| Publication Number | Publication Date |
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| CN209438686U true CN209438686U (en) | 2019-09-27 |
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| CN201822127050.2U Active CN209438686U (en) | 2018-12-18 | 2018-12-18 | A kind of silicon material crusher |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182394A (en) * | 2021-04-30 | 2021-07-30 | 张嘉家 | High-efficiency high-automation-degree cold bending forming machine |
-
2018
- 2018-12-18 CN CN201822127050.2U patent/CN209438686U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113182394A (en) * | 2021-04-30 | 2021-07-30 | 张嘉家 | High-efficiency high-automation-degree cold bending forming machine |
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