CN215069621U - Automatic arranging and laminating device for silicon steel sheets - Google Patents
Automatic arranging and laminating device for silicon steel sheets Download PDFInfo
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- CN215069621U CN215069621U CN202120508604.2U CN202120508604U CN215069621U CN 215069621 U CN215069621 U CN 215069621U CN 202120508604 U CN202120508604 U CN 202120508604U CN 215069621 U CN215069621 U CN 215069621U
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Abstract
The utility model discloses a be used for automatic range lamination device of silicon steel sheet, include: the air cylinder structure comprises a first shell, a first fixing plate, a second fixing plate, a first touch switch and a first fixing block, wherein a first strip-shaped hole is formed in one side of the first shell, two air cylinders are mounted at the top of the inner side of the first shell, the first fixing plate is arranged below the air cylinders inside the first shell, piston rods of the two air cylinders are fixedly connected with the first fixing plate, two springs are welded at the bottom of the inner side of the first shell, the second fixing plate is welded at the top of each spring, the first touch switch is mounted at the bottom of the inner side of the first shell, and the first fixing block is welded at one side, close to the first touch switch, of the bottom of the second fixing plate; the utility model discloses when using, promote first fixed plate through setting up the cylinder and drive the silicon steel sheet motion, make the silicon steel sheet remove to the second fixed plate on, accomplish the automatic lamination work to the silicon steel sheet, need not artifical manual and carry out the lamination to the silicon steel sheet, improve the lamination efficiency of silicon steel sheet and reduce the manual work burden.
Description
Technical Field
The utility model relates to a silicon steel sheet lamination equipment technical field specifically is a be used for automatic range lamination device of silicon steel sheet.
Background
The silicon steel sheet is a ferrosilicon soft magnetic alloy with extremely low carbon content, the silicon content is generally 0.5-4.5%, the addition of silicon can improve the resistivity and the maximum permeability of iron, reduce the coercive force, the iron core loss (iron loss) and the magnetic aging, and the requirements on the performance of the silicon steel are mainly as follows: the iron loss is low, which is the most important index of the quality of the silicon steel sheet; compared with the magnetic induction intensity (magnetic induction) under a strong magnetic field, the magnetic induction intensity (magnetic induction) is higher, so that the volume and the weight of the iron cores of the motor and the transformer are reduced, and silicon steel sheets, copper wires, insulating materials and the like are saved; the surface is smooth and flat, the thickness is uniform, and the filling coefficient of the iron core can be improved; the punching performance is good, and the method is more important for manufacturing miniature and small motors; the surface insulating film has good adhesiveness and weldability, and can resist corrosion and improve the punching performance; basically has no magnetic aging.
The silicon steel sheet needs to be arranged and laminated before further processing, the existing silicon steel sheet arrangement and lamination is usually manually carried out, the manual operation is adopted to carry out lamination on the silicon steel sheet, although the preliminary lamination requirement of the silicon steel sheet can be met, the manual operation is low in working efficiency, the arrangement uniformity is low, the production requirements of parts such as a transformer core made of the silicon steel sheet cannot be met, and therefore the device for automatically arranging and laminating the silicon steel sheet is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be used for automatic range of lamination device of silicon steel sheet to the silicon steel sheet that proposes in solving above-mentioned background art need arrange the lamination work before carrying out further manufacturing procedure, current silicon steel sheet range lamination is usually carried out by artifical manual, carry out the preliminary lamination demand that the lamination can satisfy the silicon steel sheet to the silicon steel sheet by artifical manual, nevertheless because manual work efficiency is low, and the range regularity is lower, can't satisfy the production demand problem of parts such as transformer core of being made by the silicon steel sheet.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a be used for automatic range of lamination device of silicon steel sheet, includes:
the device comprises a first shell, wherein a first strip-shaped hole is formed in one side of the first shell, two cylinders are installed at the top of the inner side of the first shell, a first fixing plate is arranged below the cylinders in the first shell, piston rods of the two cylinders are fixedly connected with the first fixing plate, two springs are welded at the bottom of the inner side of the first shell, a second fixing plate is welded at the top of each spring, a first touch switch is installed at the bottom of the inner side of the first shell, a first fixing block is welded at one side, close to the first touch switch, of the bottom of the second fixing plate, a second shell is welded at one side of the first shell, a servo motor is installed at one side of the second shell, a screw rod is rotatably connected inside the second shell through a bearing, one end of the screw rod is connected with an output shaft of the servo motor through a coupler, and two sections of threads with opposite spiral directions are arranged on the screw rod, the utility model discloses a screw rod, including screw rod, threaded sleeve, limiting plate, second fixed plate, first connecting rod, threaded sleeve, first casing, two third through-holes have been seted up to the inside both sides of first casing, the inside of third through-hole is equipped with the limiting plate, one side welding that the second fixed plate was kept away from to the limiting plate has first connecting rod, threaded sleeve's one end and first connecting rod welding are kept away from to the second connecting rod, first touch switch's electrical output end and servo motor's electrical input end electric connection, second bar hole has been seted up to one side of first casing.
By adopting the technical scheme, the air cylinder is arranged to push the first fixed plate to drive the silicon steel sheet to move, so that the silicon steel sheet is moved to the second fixed plate, the automatic silicon steel sheet lamination work is completed, the silicon steel sheet is not required to be manually laminated, the silicon steel sheet lamination efficiency is improved, the manual labor load is reduced, the air cylinder pushes the first fixed plate to drive the second fixed plate to move towards the first touch switch, so that the second fixed plate extrudes the spring, meanwhile, the second fixing plate drives the first fixing block to move, so that the first fixing block extrudes the first touch switch, the first touch switch controls the servo motor to operate, so that the servo motor drives the screw rod to rotate, the screw rod is matched with the threaded sleeve to drive the second connecting rod to move, the second connecting rod is matched with the first connecting rod to drive the limiting plate to move, arrange neatly through two limiting plates to the silicon steel sheet on the second fixed plate, prevent that the silicon steel sheet regularity is low to lead to unable satisfying the production demand.
The automatic silicon steel sheet arranging and laminating device is characterized in that a first through hole is formed in the first fixing plate, a second through hole is formed in the second fixing plate, a fixing rod penetrates through the second through hole, and the bottom of the fixing rod is welded with the first shell.
Through adopting above-mentioned technical scheme, set up the dead lever and make it when carrying out the lamination to the silicon steel sheet, silicon steel sheet and first through-hole are passed to one end, and stability when reinforcing first fixed plate and second fixed plate motion to carry on spacingly to the silicon steel sheet, prevent that the silicon steel sheet skew from excessively droing from the second fixed plate.
The utility model provides an foretell be used for automatic range lamination device of silicon steel sheet, wherein, the electro-magnet is installed to one side that first fixed plate is close to the second fixed plate, delay switch is installed to the inboard bottom of first casing, one side welding that second fixed plate bottom is close to delay switch has the second fixed block, delay switch's electrical property output and the electrical property input electric connection of electro-magnet.
Through adopting above-mentioned technical scheme, set up the electro-magnet and be fixed in the first fixed plate with the silicon steel sheet before the lamination to when the lamination, through second fixed block extrusion delay switch, the power supply to the electro-magnet is disconnected, makes the silicon steel sheet drop from first fixed plate.
The automatic arrangement and lamination device for the silicon steel sheets is characterized in that two first sliding rails are installed on two sides of the interior of the first shell, a first sliding block is connected to the interior of each first sliding rail in a sliding mode, and one side, close to the second fixing plate, of each first sliding block is welded with the second fixing plate.
Through adopting above-mentioned technical scheme, set up first slider and slide in first slide rail, stability when reinforcing second fixed plate motion.
The automatic silicon steel sheet arranging and laminating device is characterized in that two first limiting blocks are welded on two sides of the interior of the first sliding rail.
Through adopting above-mentioned technical scheme, set up first stopper and inject the slip range of first slider, prevent that first slider from deviating from first slide rail.
The utility model provides an foretell be used for automatic range lamination device of silicon steel sheet, wherein, two second slide rails are installed to inside one side of second casing, the inside sliding connection of second slide rail has the second slider, the second slider is close to threaded sleeve's one side and threaded sleeve welding, the inside one side welding that is close to first casing of second slide rail has the second stopper, the second touch switch is installed to one side that the second stopper is close to the second slider, the electrical property output of second touch switch and servo motor's electrical property input end electric connection.
Through adopting above-mentioned technical scheme, set up the second slider and slide in the second slide rail, stability when reinforcing thread bush motion prevents because of screw thread bush angle slope leads to screw rod surface wear when rotating to set up the second stopper and prescribe a limit to the sliding range of second slider.
Compared with the prior art, the beneficial effects of the utility model are that:
when the silicon steel sheet laminating machine is used, the air cylinder is arranged to push the first fixing plate to drive the silicon steel sheet to move, so that the silicon steel sheet is moved to the second fixing plate, automatic silicon steel sheet laminating work is completed, manual silicon steel sheet laminating is not needed, silicon steel sheet laminating efficiency is improved, and manual labor burden is reduced;
two, the utility model discloses when using, promote first fixed plate through setting up the cylinder and drive the second fixed plate and move to first touch switch direction, make first fixed block extrusion first touch switch, first touch switch control servo motor operation, screw rod cooperation threaded sleeve drives the motion of second connecting rod, and it is neat to arrange the silicon steel sheet on the second fixed plate through two limiting plates, prevents that silicon steel sheet regularity is low to lead to unable satisfying the production demand.
Drawings
FIG. 1 is a front view of the present invention in cross section;
fig. 2 is a schematic side view of the first housing of the present invention;
FIG. 3 is a schematic side view of the second housing according to the present invention;
fig. 4 is a rear view of the first housing of the present invention.
In the figure: 1. a cylinder; 2. a first housing; 3. a first fixing plate; 4. an electromagnet; 5. a first through hole; 6. fixing the rod; 7. a first link; 8. a second link; 9. a limiting plate; 10. a second fixing plate; 11. a second through hole; 12. a first fixed block; 13. a first touch switch; 14. a second fixed block; 15. a delay switch; 16. a spring; 17. a first slide rail; 18. a first slider; 19. a first stopper; 20. a third through hole; 21. a first bar-shaped hole; 22. a second housing; 23. a servo motor; 24. a second slider; 25. a second slide rail; 26. a second limiting block; 27. a screw; 28. a threaded bushing; 29. a bearing; 30. a second bar-shaped hole; 31. and a second touch switch.
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.
Referring to fig. 1-3, the present invention provides a technical solution:
the utility model provides a be used for automatic range of lamination device of silicon steel sheet, includes:
a first shell 2, a first strip-shaped hole 21 is formed in one side of the first shell 2, two cylinders 1 are mounted on the top of the inner side of the first shell 2, a first fixing plate 3 is arranged below the cylinders 1 inside the first shell 2, piston rods of the two cylinders 1 are fixedly connected with the first fixing plate 3, two springs 16 are welded at the bottom of the inner side of the first shell 2, a second fixing plate 10 is welded at the top of each spring 16, a first touch switch 13 is mounted at the bottom of the inner side of the first shell 2, a first fixing block 12 is welded at the bottom of the second fixing plate 10 close to the first touch switch 13, a second shell 22 is welded at one side of the first shell 2, a servo motor 23 is mounted at one side of the second shell 22, a screw 27 is rotatably connected inside the second shell 22 through a bearing 29, one end of the screw 27 is connected with an output shaft of the servo motor 23 through a coupler, and two threads with opposite spiral directions are arranged on the screw 27, the outside cover at both ends is equipped with threaded sleeve 28 about screw rod 27, threaded sleeve 28 has the second connecting rod 8 in the welding of one side that is close to first casing 2, two third through holes 20 have been seted up to the inside both sides of first casing 2, the inside of third through hole 20 is equipped with limiting plate 9, the welding of one side that second fixed plate 10 was kept away from to limiting plate 9 has first connecting rod 7, threaded sleeve 28 was kept away from to second connecting rod 8 one end and the welding of first connecting rod 7, the electrical property output of first touch switch 13 and servo motor 23's electrical property input electric connection, second bar hole 30 has been seted up to one side of first casing 2.
By adopting the technical scheme, the air cylinder 1 is arranged to push the first fixing plate 3 to drive the silicon steel sheets to move, so that the silicon steel sheets are moved to the second fixing plate 10, automatic silicon steel sheet lamination work is completed, the silicon steel sheets are not required to be laminated manually, the silicon steel sheet lamination efficiency is improved, and the manual labor load is reduced, the air cylinder 1 pushes the first fixing plate 3 to drive the second fixing plate 10 to move towards the first touch switch 13, so that the second fixing plate 10 extrudes the spring 16, meanwhile, the second fixing plate 10 drives the first fixing block 12 to move, so that the first fixing block 12 extrudes the first touch switch 13, the first touch switch 13 controls the servo motor 23 to operate, so that the servo motor 23 drives the screw 27 to rotate, the screw 27 drives the second connecting rod 8 to move in cooperation with the threaded sleeve 28, the second connecting rod 8 drives the limiting plate 9 to move in cooperation with the first connecting rod 7, and the silicon steel sheets on the second fixing plate 10 are arranged in order through the two limiting plates 9, prevent that the silicon steel sheet regularity from low leading to unable satisfying the production demand, the switch block that is used for controlling cylinder 1 to start and close is installed to one side of first casing 2, and the switch block is connected with external commercial power for supply power for cylinder 1, servo motor 23 and electro-magnet 4.
Specifically, a first through hole 5 is formed in the first fixing plate 3, a second through hole 11 is formed in the second fixing plate 10, a fixing rod 6 penetrates through the second through hole 11, and the bottom of the fixing rod 6 is welded to the first shell 2.
Through adopting above-mentioned technical scheme, set up dead lever 6 and make it when carrying out the lamination to the silicon steel sheet, silicon steel sheet and first through-hole 5 are passed to one end, and stability when reinforcing first fixed plate 3 and the motion of second fixed plate 10 to carry on spacingly to the silicon steel sheet, prevent that the silicon steel sheet skew from excessively droing from second fixed plate 10.
Specifically, the electromagnet 4 is installed at one side of the first fixing plate 3 close to the second fixing plate 10, the delay switch 15 is installed at the bottom of the inner side of the first shell 2, the second fixing block 14 is welded at one side of the bottom of the second fixing plate 10 close to the delay switch 15, and the electrical output end of the delay switch 15 is electrically connected with the electrical input end of the electromagnet 4.
Through adopting above-mentioned technical scheme, set up electro-magnet 4 and be fixed in the first fixed plate 3 with the silicon steel sheet before the lamination to when the lamination, through second fixed block 14 extrusion delay switch 15, the power supply to electro-magnet 4 is disconnected, makes the silicon steel sheet drop from first fixed plate 3.
Specifically, two first sliding rails 17 are installed on two sides of the inside of the first housing 2, a first sliding block 18 is connected to the inside of the first sliding rail 17 in a sliding manner, and one side of the first sliding block 18, which is close to the second fixing plate 10, is welded to the second fixing plate 10.
Through adopting above-mentioned technical scheme, set up first slider 18 and slide in first slide rail 17, stability when reinforcing second fixed plate 10 motion.
Specifically, two first limiting blocks 19 are welded on two sides of the interior of the first slide rail 17.
Through adopting above-mentioned technical scheme, set up first stopper 19 and inject the slip range of first slider 18, prevent that first slider 18 from deviating from first slide rail 17.
Specifically, two second slide rails 25 are installed on one side of the inside of the second casing 22, a second slider 24 is connected to the inside of the second slide rails 25 in a sliding manner, one side of the second slider 24, which is close to the threaded sleeve 28, is welded to the threaded sleeve 28, a second limiting block 26 is welded to one side of the second slide rails 25, which is close to the first casing 2, a second touch switch 31 is installed on one side of the second limiting block 26, which is close to the second slider 24, and the electrical output end of the second touch switch 31 is electrically connected to the electrical input end of the servo motor 23.
Through adopting above-mentioned technical scheme, set up second slider 24 and slide in second slide rail 25, stability when reinforcing screw sleeve 28 motion prevents to set up second stopper 26 and prescribe a limit to the sliding range of second slider 24 because of screw sleeve 28 angle slope leads to screw 27 surface wear when rotating.
The structure principle is as follows: silicon steel sheets to be laminated are put into the first shell 2 through the first strip-shaped hole 21, the silicon steel sheets are fixed on the first fixing plate 3 by the electromagnet 4, the cylinder 1 is controlled to be started through the switch group, the cylinder 1 pushes the first fixing plate 3 to move towards the second fixing plate 10, when the first fixing plate 3 moves, one end of the fixing rod 6 penetrates through the first through hole 5 and the silicon steel sheets, when the silicon steel sheets move to the second fixing plate 10, the first fixing plate 3 pushes the second fixing plate 10 to move towards the first touch switch 13, the second fixing plate 10 drives the first sliding block 18 to slide in the first sliding rail 17, meanwhile, the second fixing plate 10 extrudes the spring 16, the first fixing block 12 is driven to extrude the first touch switch 13, meanwhile, the second fixing block 14 extrudes the time delay switch 15, the time delay switch 15 cuts off the power supply of the electromagnet 4, so that the silicon steel sheets fall off from the first fixing plate 3, after the cylinder 1 is reset, time delay switch 15 resets, resume the power supply to electro-magnet 4, first touch switch 13 control servo motor 23 motion, servo motor 23 drives screw rod 27 and rotates, screw rod 27 cooperation threaded sleeve 28 and second connecting rod 8 drive first connecting rod 7 motion, first connecting rod 7 drives limiting plate 9 and moves to dead lever 6 direction, when the second fixed plate 10 resets, limiting plate 9 removes to contacting with the silicon steel sheet, arrange neatly through limiting plate 9 to the silicon steel sheet, when limiting plate 9 moves, threaded sleeve 28 drives second slider 24 and slides to second stopper 26 direction, when limiting plate 9 and the contact of silicon steel sheet, second slider 24 touches second touch switch 31, make servo motor 23 reversal, reset limiting plate 9, take out the silicon steel sheet through second bar hole 30 after the lamination is accomplished.
To sum up, when the silicon steel sheet laminating machine is used, the air cylinder 1 is arranged to push the first fixing plate 3 to drive the silicon steel sheet to move, so that the silicon steel sheet is moved to the second fixing plate 10, automatic silicon steel sheet laminating work is completed, manual silicon steel sheet laminating is not needed, silicon steel sheet laminating efficiency is improved, and manual labor burden is reduced; the utility model discloses when using, promote first fixed plate 3 through setting up cylinder 1 and drive second fixed plate 10 to the motion of first touch switch 13 direction, make first fixed block 12 extrusion first touch switch 13, first touch switch 13 control servo motor 23 moves, screw rod 27 cooperation threaded sleeve 28 drives the motion of second connecting rod 8, arrange neatly through two limiting plates 9 silicon steel sheet on to second fixed plate 10, prevent that silicon steel sheet regularity is low to lead to unable satisfying the production demand.
The part not involved in the utility model is the same as the prior art or can be realized by adopting the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a be used for automatic range of silicon steel sheet lamination device which characterized in that includes:
the air cylinder structure comprises a first shell (2), a first strip-shaped hole (21) is formed in one side of the first shell (2), two air cylinders (1) are installed at the top of the inner side of the first shell (2), a first fixing plate (3) is arranged below the air cylinders (1) inside the first shell (2), piston rods of the two air cylinders (1) are fixedly connected with the first fixing plate (3), two springs (16) are welded at the bottom of the inner side of the first shell (2), a second fixing plate (10) is welded at the top of the springs (16), a first touch switch (13) is installed at the bottom of the inner side of the first shell (2), a first fixing block (12) is welded at one side, close to the first touch switch (13), of the bottom of the second fixing plate (10), a second shell (22) is welded at one side of the first shell (2), and a servo motor (23) is installed at one side of the second shell (22), the inside of second casing (22) is rotated through bearing (29) and is connected with screw rod (27), the one end of screw rod (27) passes through the coupling joint with the output shaft of servo motor (23), two sections opposite screw thread of spiral direction have on screw rod (27), the outside cover at both ends is equipped with threaded sleeve (28) about screw rod (27), one side welding that threaded sleeve (28) is close to first casing (2) has second connecting rod (8), two third through-holes (20) have been seted up to the inside both sides of first casing (2), the inside of third through-hole (20) is equipped with limiting plate (9), one side welding that second fixed plate (10) was kept away from to limiting plate (9) has first connecting rod (7), the one end that threaded sleeve (28) was kept away from in second connecting rod (8) welds with first connecting rod (7), the electrical output end of first touch switch (13) and the electrical input end electrical connection of servo motor (23), and a second strip-shaped hole (30) is formed in one side of the first shell (2).
2. The apparatus for automatically arranging and laminating silicon steel sheets according to claim 1, wherein: first through-hole (5) have been seted up to the inside of first fixed plate (3), second through-hole (11) have been seted up to the inside of second fixed plate (10), dead lever (6) has been run through to the inside of second through-hole (11), the bottom and the first casing (2) welding of dead lever (6).
3. The apparatus for automatically arranging and laminating silicon steel sheets according to claim 1, wherein: electromagnet (4) is installed to one side that first fixed plate (3) are close to second fixed plate (10), delay switch (15) are installed to the inboard bottom of first casing (2), one side welding that second fixed plate (10) bottom is close to delay switch (15) has second fixed block (14), the electrical property output of delay switch (15) and the electrical property input electric connection of electromagnet (4).
4. The apparatus for automatically arranging and laminating silicon steel sheets according to claim 1, wherein: two first slide rails (17) are installed to the inside both sides of first casing (2), the inside sliding connection of first slide rail (17) has first slider (18), one side that first slider (18) are close to second fixed plate (10) is welded with second fixed plate (10).
5. The apparatus for automatically arranging and laminating silicon steel sheets according to claim 4, wherein: two first limiting blocks (19) are welded on two sides of the interior of the first sliding rail (17).
6. The apparatus for automatically arranging and laminating silicon steel sheets according to claim 1, wherein: two second slide rails (25) are installed to inside one side of second casing (22), the inside sliding connection of second slide rail (25) has second slider (24), one side that second slider (24) are close to threaded sleeve pipe (28) welds with threaded sleeve pipe (28), inside one side welding that is close to first casing (2) of second slide rail (25) has second stopper (26), second stopper (26) are close to one side of second slider (24) and install second touch switch (31), the electrical output of second touch switch (31) and the electrical input end electric connection of servo motor (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120508604.2U CN215069621U (en) | 2021-03-10 | 2021-03-10 | Automatic arranging and laminating device for silicon steel sheets |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120508604.2U CN215069621U (en) | 2021-03-10 | 2021-03-10 | Automatic arranging and laminating device for silicon steel sheets |
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| CN215069621U true CN215069621U (en) | 2021-12-07 |
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| CN202120508604.2U Active CN215069621U (en) | 2021-03-10 | 2021-03-10 | Automatic arranging and laminating device for silicon steel sheets |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115512956A (en) * | 2022-10-24 | 2022-12-23 | 哈工科讯(沈阳)智能工业技术有限公司 | Rotor silicon steel sheet lamination device and method, control device, lamination and stable structure thereof |
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2021
- 2021-03-10 CN CN202120508604.2U patent/CN215069621U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115512956A (en) * | 2022-10-24 | 2022-12-23 | 哈工科讯(沈阳)智能工业技术有限公司 | Rotor silicon steel sheet lamination device and method, control device, lamination and stable structure thereof |
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Address after: A1-416, Building 1, No. 309, Ping'an Avenue, Liang'antian Community, Pinghu Street, Longgang District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Dongqiao Energy Saving Technology Group Co.,Ltd. Address before: 518000 North block, 1st floor, building B, No.96, Dongmen Road, egongling community, Pinghu street, Longgang District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Dongqiao energy saving equipment Co.,Ltd. |