CN113071130B - Efficient energy-saving type oil-electricity hybrid numerical control bending machine - Google Patents
Efficient energy-saving type oil-electricity hybrid numerical control bending machine Download PDFInfo
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- CN113071130B CN113071130B CN202110346347.1A CN202110346347A CN113071130B CN 113071130 B CN113071130 B CN 113071130B CN 202110346347 A CN202110346347 A CN 202110346347A CN 113071130 B CN113071130 B CN 113071130B
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- bending machine
- machine body
- oil
- numerical control
- energy
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- 238000005452 bending Methods 0.000 title claims abstract description 68
- 239000000463 material Substances 0.000 claims description 34
- 230000000903 blocking effect Effects 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 239000011295 pitch Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims 3
- 230000004044 response Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000002457 bidirectional effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
- B30B1/34—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure involving a plurality of plungers acting on the platen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/22—Auxiliary equipment, e.g. positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a high-efficiency energy-saving type oil-electricity hybrid numerical control bending machine, relates to the technical field of bending machine equipment, and solves the problems of high energy consumption, easiness in heating, low energy utilization rate and high noise of the conventional bending machine. The bending machine comprises a bending machine body, wherein the bending machine body comprises an upper die and a lower die which are arranged up and down, the upper die is connected with a cutter for bending, and the lower die is connected with a positioning groove matched with the cutter for bending; the bending machine body is also connected with a driving device for driving the upper die to move up and down, the driving device comprises an oil cylinder, and an output rod of the oil cylinder is connected with the upper die; the bending machine body is internally provided with an oil tank which is communicated with an oil pump, the oil pump is connected with a servo motor, and the servo motor drives the oil pump to work, so that a piston rod of the oil cylinder acts. The effects that the proportional valve and the directional valve are omitted, when the servo motor is started, the oil pump can be started near to no pressure, the response speed is high, and the working efficiency is improved are achieved.
Description
Technical Field
The invention relates to the technical field of bending machine equipment, in particular to a high-efficiency energy-saving oil-electricity hybrid numerical control bending machine.
Background
The principle of the hydraulic control system of the current domestic and foreign electrohydraulic servo synchronous bending machine is very similar, the hydraulic control system is basically unchanged for decades, and the hydraulic control system can be called a valve control synchronous system by controlling the synchronization of oil cylinders by means of proportional servo valves. Because the proportional servo throttling speed regulation principle is applied, the energy loss is large, the system is easy to generate heat, the energy utilization rate is low, and the common hydraulic system has larger noise when idle and fast running.
Disclosure of Invention
The invention aims to provide an efficient energy-saving type oil-electricity hybrid numerical control bending machine, which omits reversing of a proportional valve and a directional valve, and when a servo motor is started, an oil pump can be started near to a non-pressure state, so that the response speed is high, and the working efficiency is improved.
The technical aim of the invention is realized by the following technical scheme:
the high-efficiency energy-saving type oil-electricity hybrid numerical control bending machine comprises a bending machine body, wherein the bending machine body comprises an upper die and a lower die which are arranged up and down, a cutter for bending is connected to the upper die, and a positioning groove matched with the cutter for bending is connected to the lower die;
the bending machine body is also connected with a driving device for driving the upper die to move up and down, the driving device comprises an oil cylinder, and an output rod of the oil cylinder is connected with the upper die; the bending machine body is internally provided with an oil tank which is communicated with an oil pump, the oil pump is connected with a servo motor, and the servo motor drives the oil pump to work, so that a piston rod of the oil cylinder acts.
Furthermore, the bending machine body is also connected with a material supporting device with the top at the same height with the lower die.
Still further, hold in palm material device includes holds in palm flitch and mounting panel, and the bender organism outside is connected with a plurality of T shape installation bars, and the mounting panel is inserted and is located between the adjacent installation bar, holds in the palm flitch butt in the installation bar top.
Still further, hold in palm the flitch including the butt strip that its bottom is connected, butt strip butt is in the installation strip top, and butt strip bottom surface still is connected with the connecting plate, and the inner butt of connecting plate is on the installation strip lateral surface.
Furthermore, the top of the abutting strip is provided with a plurality of rollers, the material supporting plate is provided with through holes matched with the rollers, and the highest point of the rollers is higher than the top of the material supporting plate.
Furthermore, a stop mechanism for positioning the processing position of the workpiece is also arranged in the bending machine body.
Further, the material blocking mechanism comprises a material blocking plate and a displacement driving piece for driving the material blocking plate to move.
Further, the displacement driving piece comprises a first linear module arranged along the thickness direction of the bending machine body, a second linear module arranged along the vertical direction and a third linear module arranged along the length direction of the bending machine body;
The first linear module drives the second linear module to slide along the length direction of the first linear module, the second linear module drives the third linear module to slide up and down along the length direction of the third linear module,
The screw rod in the third linear module is provided with two symmetrical sections, the screw pitches of the two sections of screw threads are the same and the screw directions are opposite, the two sections of screw threads are respectively connected with the connecting seats, and the baffle plate is provided with two sections of screw threads and is respectively connected with the corresponding connecting seats.
Furthermore, the bending machine body is detachably connected with a cover body at one side far away from the material supporting device.
Furthermore, the cover body comprises a plurality of square frames, a blocking net is fixed in the frames, the bottoms of the frames are integrally connected with inserting rods, the inserting rods are inserted into sockets, and the sockets are U-shaped and the opening sides of the sockets face the bending machine body.
In summary, the invention has the following beneficial effects:
The bidirectional pump is controlled by the forward and reverse rotation of the servo motor to reverse the liquid flow, so that the reversing of the proportional valve and the directional valve is omitted, and when the servo motor is started, the oil pump can be started close to the non-pressure state, the response speed is high, and the working efficiency is greatly improved; the oil pump is driven by the double servo motors to control the flow, so that more accurate synchronization is realized, and the advantages of energy conservation and noise reduction can be realized; and the universality of the device is improved through the arrangement of the material blocking mechanism and the material removing device, and the convenience of transportation and the safety of use are improved through the cover body.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the tray part of the present invention;
FIG. 3 is a schematic view of a portion of a dam mechanism of the present invention;
fig. 4 is a schematic view of the structure of the cover part in the present invention.
In the figure, 1, a bending machine body; 11. a mounting bar; 12. a cover body; 121. a square frame; 122. a blocking net; 123. a rod; 124. a socket; 2. an upper die; 3. a lower die; 4. an oil cylinder; 41. an oil tank; 42. an oil pump; 5. a material supporting device; 51. a material supporting plate; 511. an abutment bar; 512. a through hole; 52. a mounting plate; 6. a striker plate; 61. a first linear module; 62. a second linear module; 63. and a third linear module.
Detailed Description
The following description of the embodiments of the invention is further illustrated in the accompanying drawings, and the examples are not meant to limit the invention.
The utility model provides a high-efficient energy-saving type oil electricity mixes numerical control bender, is shown as fig. 1, including bender organism 1, bender organism 1 includes 2 and lower mould 3 of upper mould 2 that set up from top to bottom, can dismantle on 2 the upper mould and be connected with the cutter that is used for bending, can dismantle on 3 the lower mould and be connected with the constant head tank with the cutter looks adaptation of bending, still be equipped with light and alarm device etc. on the organism. The strength and the structural rationality of the frame are calculated through the whole machine finite element software analysis module, the frame with an integral welding structure is adopted, the internal stress is eliminated through normalizing and high-frequency vibration, and the long-term rigidity and stability of the equipment are ensured.
As shown in fig. 1, a driving device for driving the upper die 2 to move up and down is further connected to the bending machine body 1, the driving device comprises an oil cylinder 4, the bottom end of an output rod of the oil cylinder 4 is connected to a sliding block, and the sliding block is fixedly connected to the upper die 2; the bending machine body is internally provided with an oil tank 41, the oil tank 41 is communicated with an oil pump 42, the oil pump 42 is a bidirectional plunger pump which is connected with an alternating current servo motor and drives the bidirectional plunger pump to work through the operation of the alternating current servo motor, so that a piston rod of an oil cylinder 4 works, and when the piston rod stretches out, the piston rod drives a sliding block to move downwards and drives a cutter of an upper die 2 to move up and down through sliding;
After the bending processing is completed, the servo motor is reversed, a piston rod in the oil cylinder 4 is contracted, and the upward return motion of the sliding block is driven; the bidirectional pump is controlled by the forward and reverse rotation of the servo motor to change the liquid flow, so that the change of the proportional valve and the directional valve is omitted, and the working efficiency is greatly improved.
As shown in fig. 1, a material supporting device 5 with the top at the same height as the lower die 3 is also connected to the bending machine body 1; the material supporting device 5 comprises a material supporting plate 51 and a mounting plate 52 which are perpendicular to each other, a plurality of T-shaped mounting bars 11 are connected to the outer side of the bending machine body 1 through screws, the mounting plate 52 is inserted between the adjacent mounting bars 11, the insertion position can be selected according to the size of a workpiece, the material supporting plate 51 is abutted to the top of the mounting bars 11, and a plurality of reinforcing ribs are connected between the material supporting plate 51 and the inner side of the mounting plate 52.
As shown in fig. 1 and 2, the material supporting plate 51 includes an abutting strip 511 with the bottom connected, the abutting strip 511 abuts against the top of the mounting strip 11, the bottom surface of the abutting strip 511 is also connected with a connecting plate, and the inner end of the connecting plate abuts against the outer side surface of the mounting strip 11. The top of the abutting strip 511 is provided with a plurality of rollers, the material supporting plate 51 is provided with through holes 512 matched with the rollers, and the highest point of the rollers is higher than the top of the material supporting plate 51.
As shown in fig. 3, a stop mechanism for positioning the processing position of the workpiece is further arranged in the bending machine body 1, and the stop mechanism comprises a stop plate 6 and a displacement driving member for driving the stop plate 6 to move; the displacement driving part comprises a first linear module 61 arranged along the thickness direction of the bending machine body 1, a second linear module 62 arranged along the vertical direction and a third linear module 63 arranged along the length direction of the bending machine body 1;
The first linear module 61 drives the second linear module 62 to slide along the length direction of the first linear module to approach or separate from the whole bending machine body 1, and the second linear module 62 drives the third linear module 63 to slide up and down along the length direction of the second linear module to replace different up and down positioning positions;
The inside lead screw of third sharp module 63 is equipped with two sections of symmetry, and two sections screw thread pitches are the same and revolve to opposite, and threaded connection connecting seat respectively to the straight line through guide bar guide connecting seat slides, and striker plate 6 is equipped with two and connects respectively on corresponding connecting seat, in order to drive two striker plates 6 each other to be close to or keep away from through third sharp module 63, and keep two striker plates 6 symmetrical, in order to adjust the position of two striker plates according to the work piece size, improve its positioning accuracy.
As shown in fig. 4, a cover 12 is detachably connected to one side, far away from the material supporting device 5, of the bending machine body 1, the cover 12 comprises a plurality of square frames 121, blocking nets 122 are fixed in the frames, inserting rods 123 are integrally connected to the bottoms of the frames, the inserting rods 123 are inserted into sockets 124, the sockets 124 are U-shaped, the opening sides of the inserting rods face the bending machine body 1, the cover 12 is integrally U-shaped and blocked on the back of the bending machine body 1, so that protection is performed after the installation of a material blocking mechanism is completed, and meanwhile, the occupied space of equipment in transportation is increased.
The foregoing description of the preferred embodiments of the present invention is not intended to limit the invention, and those skilled in the art may make various modifications and equivalents within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a high-efficient energy-saving oil electricity mixes numerical control bender which characterized in that: the bending machine comprises a bending machine body (1), wherein the bending machine body (1) comprises an upper die (2) and a lower die (3) which are arranged up and down, a cutter for bending is connected to the upper die (2), and a positioning groove matched with the cutter for bending is connected to the lower die (3);
The bending machine body (1) is also connected with a driving device for driving the upper die (2) to move up and down, the driving device comprises an oil cylinder (4), and an output rod of the oil cylinder (4) is connected with the upper die (2); an oil tank (41) is arranged in the bending machine body, the oil tank (41) is communicated with an oil pump (42), the oil pump (42) is connected with a servo motor, and the servo motor drives the oil pump (42) to work, so that a piston rod of the oil cylinder (4) acts;
The bending machine is characterized in that the bending machine body (1) is also connected with a material supporting device (5) with the top at the same height as the lower die (3), the material supporting device (5) comprises a material supporting plate (51) and a mounting plate (52), the outer side of the bending machine body (1) is connected with a plurality of T-shaped mounting strips (11), the mounting plate (52) is inserted between the adjacent mounting strips (11), and the material supporting plate (51) is abutted to the top of the mounting strips (11);
The material supporting plate (51) comprises a butt joint strip (511) connected with the bottom of the material supporting plate, the butt joint strip (511) is butt-jointed with the top of the installation strip (11), the bottom surface of the butt joint strip (511) is also connected with a connecting plate, and the inner end of the connecting plate is butt-jointed with the outer side surface of the installation strip (11); the top of the abutting strip (511) is provided with a plurality of rollers, the material supporting plate (51) is provided with through holes (512) matched with the rollers, and the highest point of the rollers is higher than the top of the material supporting plate (51).
2. The efficient and energy-saving type oil-electricity hybrid numerical control bending machine according to claim 1, wherein the efficient and energy-saving type oil-electricity hybrid numerical control bending machine is characterized in that: and a stop mechanism for positioning the processing position of the workpiece is also arranged in the bending machine body (1).
3. The efficient and energy-saving type oil-electricity hybrid numerical control bending machine according to claim 2, wherein the efficient and energy-saving type oil-electricity hybrid numerical control bending machine is characterized in that: the material blocking mechanism comprises a material blocking plate (6) and a displacement driving piece for driving the material blocking plate (6) to move.
4. A high efficiency energy saving type oil-electricity hybrid numerical control bending machine according to claim 3, wherein: the displacement driving piece comprises a first linear module (61) arranged along the thickness direction of the bending machine body (1), a second linear module (62) arranged along the vertical direction and a third linear module (63) arranged along the length direction of the bending machine body (1);
The first linear module (61) drives the second linear module (62) to slide along the length direction, the second linear module (62) drives the third linear module (63) to slide up and down along the length direction,
The screw rod in the third linear module (63) is provided with two symmetrical sections, the screw pitches of the two sections of screw threads are the same and the screw directions are opposite, the connecting seats are connected through the screw threads respectively, and the baffle plate (6) is provided with two baffle plates and is connected to the corresponding connecting seats respectively.
5. The efficient and energy-saving type oil-electricity hybrid numerical control bending machine according to claim 1, wherein the efficient and energy-saving type oil-electricity hybrid numerical control bending machine is characterized in that: one side of the bending machine body (1) far away from the material supporting device (5) is detachably connected with a cover body (12).
6. The efficient and energy-saving type oil-electricity hybrid numerical control bending machine according to claim 5, wherein the efficient and energy-saving type oil-electricity hybrid numerical control bending machine is characterized in that: the cover body (12) comprises a plurality of square frames (121), a blocking net (122) is fixed in the frames, inserting rods (123) are integrally connected to the bottoms of the frames, the inserting rods (123) are inserted into sockets (124), and the sockets (124) are U-shaped and the opening sides of the sockets face the bending machine body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110346347.1A CN113071130B (en) | 2021-03-31 | 2021-03-31 | Efficient energy-saving type oil-electricity hybrid numerical control bending machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110346347.1A CN113071130B (en) | 2021-03-31 | 2021-03-31 | Efficient energy-saving type oil-electricity hybrid numerical control bending machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113071130A CN113071130A (en) | 2021-07-06 |
| CN113071130B true CN113071130B (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110346347.1A Active CN113071130B (en) | 2021-03-31 | 2021-03-31 | Efficient energy-saving type oil-electricity hybrid numerical control bending machine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114101400A (en) * | 2021-11-12 | 2022-03-01 | 南京恒久机器制造有限公司 | High-precision oil-electricity hybrid electric-hydraulic servo numerical control bending machine |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050078090A (en) * | 2004-01-30 | 2005-08-04 | 주식회사 일우산업기계 | Stroke control device of hydraulic press brake machine |
| CN203184471U (en) * | 2013-01-25 | 2013-09-11 | 马鞍山市中亚机床制造有限公司 | Front material supporting device of bending machine |
| CN103302151A (en) * | 2013-05-09 | 2013-09-18 | 诸暨市米蓝机械有限公司 | Improved structure of bending machine |
| CN104815917A (en) * | 2015-05-27 | 2015-08-05 | 深圳市奥斯玛数控发展有限公司 | Post-positioning device of bending machine |
| CN204710895U (en) * | 2015-05-26 | 2015-10-21 | 上海瑞铁数控机床有限公司 | Oil electricity mixing numerical control bender |
| CN205324825U (en) * | 2016-01-28 | 2016-06-22 | 江苏海锐数控机床有限公司 | A forestock work or material rest for keyway planer |
| CN206509362U (en) * | 2017-01-09 | 2017-09-22 | 南京建隆厨具制造有限公司 | Numerical control bender |
| CN208866189U (en) * | 2018-09-27 | 2019-05-17 | 珠海市机械厂有限公司 | A kind of fluid pressure type machine for press-bending metal sheet |
| CN110883144A (en) * | 2019-12-02 | 2020-03-17 | 重庆拓达无纺布有限公司 | Be used for hydraulic pressure sheet material bender |
| CN210632818U (en) * | 2019-10-24 | 2020-05-29 | 南京奥吉机床制造有限公司 | Electro-hydraulic synchronous numerical control bending machine |
| CN111496037A (en) * | 2020-05-16 | 2020-08-07 | 伍钜波 | High-precision aluminum profile extrusion and bending integrated device |
-
2021
- 2021-03-31 CN CN202110346347.1A patent/CN113071130B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050078090A (en) * | 2004-01-30 | 2005-08-04 | 주식회사 일우산업기계 | Stroke control device of hydraulic press brake machine |
| CN203184471U (en) * | 2013-01-25 | 2013-09-11 | 马鞍山市中亚机床制造有限公司 | Front material supporting device of bending machine |
| CN103302151A (en) * | 2013-05-09 | 2013-09-18 | 诸暨市米蓝机械有限公司 | Improved structure of bending machine |
| CN204710895U (en) * | 2015-05-26 | 2015-10-21 | 上海瑞铁数控机床有限公司 | Oil electricity mixing numerical control bender |
| CN104815917A (en) * | 2015-05-27 | 2015-08-05 | 深圳市奥斯玛数控发展有限公司 | Post-positioning device of bending machine |
| CN205324825U (en) * | 2016-01-28 | 2016-06-22 | 江苏海锐数控机床有限公司 | A forestock work or material rest for keyway planer |
| CN206509362U (en) * | 2017-01-09 | 2017-09-22 | 南京建隆厨具制造有限公司 | Numerical control bender |
| CN208866189U (en) * | 2018-09-27 | 2019-05-17 | 珠海市机械厂有限公司 | A kind of fluid pressure type machine for press-bending metal sheet |
| CN210632818U (en) * | 2019-10-24 | 2020-05-29 | 南京奥吉机床制造有限公司 | Electro-hydraulic synchronous numerical control bending machine |
| CN110883144A (en) * | 2019-12-02 | 2020-03-17 | 重庆拓达无纺布有限公司 | Be used for hydraulic pressure sheet material bender |
| CN111496037A (en) * | 2020-05-16 | 2020-08-07 | 伍钜波 | High-precision aluminum profile extrusion and bending integrated device |
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| CN113071130A (en) | 2021-07-06 |
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