CN111250864B - Automatic control device of steel bar electroslag press welder - Google Patents
Automatic control device of steel bar electroslag press welder Download PDFInfo
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- CN111250864B CN111250864B CN202010078008.5A CN202010078008A CN111250864B CN 111250864 B CN111250864 B CN 111250864B CN 202010078008 A CN202010078008 A CN 202010078008A CN 111250864 B CN111250864 B CN 111250864B
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- seat
- clamping head
- bevel gear
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- screw rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K25/00—Slag welding, i.e. using a heated layer or mass of powder, slag, or the like in contact with the material to be joined
Abstract
The invention relates to the technical field of a steel bar electroslag press welder, in particular to an automatic control device of the steel bar electroslag press welder, which comprises a top box seat, a lower chuck and an upper chuck, wherein a pair of guide rods are connected between the top box seat and the lower chuck, the guide rods are connected with the upper chuck, one side of the top box seat is provided with a motor and a reduction box, the rear side wall of a chuck seat arranged on the lower chuck is fixedly connected with a displacement sensor through a bolt, and the automatic control device has the advantages that: according to the invention, the motor is controlled to work, the output shaft of the motor is decelerated and torque-increased through the planetary speed reduction component arranged in the reduction box, the steering transmission component arranged in the top box base is used for steering, the screw rod is used for outputting power, the screw rod is driven to be in threaded connection with the chuck base arranged on the upper chuck for transmission, so that the upper chuck is driven to lift, and the reinforcing steel bar fixed on the upper chuck is pressed down.
Description
Technical Field
The invention relates to the technical field of steel bar electroslag press-welding machines, in particular to an automatic control device of a steel bar electroslag press-welding machine.
Background
Electroslag pressure welding is a pressure welding method which is completed by placing two reinforcing steel bars into a vertical or oblique butt joint mode, utilizing welding current to pass through a gap between the two reinforcing steel bars, forming an electric arc process and an electroslag process under a welding flux layer, generating electric arc heat and resistance heat, melting the reinforcing steel bars and pressurizing.
In the process of welding two steel bars through an electroslag pressure welding machine, the two steel bars need to be butted through a clamping apparatus, welding agents are wrapped and filled in the butted position, a power supply of the electric welding machine is switched on, two welding bar wires are connected to an upper clamping head and a lower clamping head of the clamping apparatus for arc striking, along with arc combustion, molten iron is diffused outwards around welding flux near a welding opening, in order to keep the arc stable combustion, the upper clamping head needs to be operated to continuously descend, the steel bars are melted to have the length of 18-20mm, the joint of the two steel bars is guaranteed, the clamping apparatus of the traditional electroslag pressure welding machine is usually pressed by descending of the upper clamping head through manual operation, the operation cannot be rapid, the length of downward pressing of the steel bars cannot be accurately controlled, and the welding effect of the steel bars is influenced.
Disclosure of Invention
The invention aims to provide an automatic control device of a reinforcing steel electroslag press welder, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an automatic control device of a steel bar electroslag press welder comprises a top box base, a lower chuck and an upper chuck, wherein the lower chuck and the upper chuck are respectively composed of a chuck base, a jaw, a screw rod cylinder base and a tension screw rod, one side end of the chuck base is welded with the jaw, the jaw is an arc-shaped supporting body which is bent and wrapped towards the front side, the front side wall of the chuck base is welded with the screw rod cylinder base, the tension screw rod is screwed in the screw rod cylinder base, one end of the tension screw rod, far away from the jaw, is fixedly connected with a handle, the lower surface of the top box base is welded with a pair of guide rods which vertically face downwards, the lower ends of the guide rods are in threaded connection with the chuck base in the lower chuck, the upper middle parts of the guide rods are provided with sliding rod parts which penetrate through the two ends of the chuck base arranged in the upper chuck and are in sliding connection with the chuck base arranged in the upper chuck, one side of the top box base is provided with a motor and a reduction box connected with an output shaft of the motor, the reduction gearbox is fixedly connected with the side wall of the top box base through a bolt, the rear side wall of the clamping head base arranged on the lower clamping head is fixedly connected with a displacement sensor through a bolt, a vertical upward displacement detection rod is arranged at the upper end of the displacement sensor, a pressing plate is welded on the rear side wall of the clamping head base arranged on the upper clamping head, and the upper end of the displacement detection rod is tightly attached to the lower surface of the pressing plate.
Preferably, a planetary reduction component is arranged in the reduction gearbox, the planetary reduction component comprises a sun wheel, planet wheels, an internal gear, a planet wheel seat and a reduction output shaft, the sun wheel is arranged at the output shaft end of the motor, the sun wheel is meshed with the sun wheel simultaneously, the internal gear meshed with the three planet wheels is arranged on the inner wall of the reduction gearbox, the planet wheels are connected to the planet wheel seat through rotating shafts, and the reduction output shaft connected to the planet wheel seat penetrates into the top box seat.
Preferably, a steering transmission member is arranged in the top box base and comprises a driving bevel gear, a driven bevel gear and a screw rod, the driving bevel gear is fixedly arranged at the end part of the speed reduction output shaft, the driven bevel gear in meshing transmission with the driving bevel gear is connected with the screw rod, and the screw rod penetrates out along the bottom of the top box base.
Preferably, the lower end of the screw rod is provided with an external thread, and the lower end of the screw rod penetrates through the middle part of the chuck seat arranged along the upper chuck and is in threaded connection with the chuck seat.
Preferably, the speed reduction output shaft and the screw are arranged at 90 degrees, and the gear ratio of the driving bevel gear to the driven bevel gear is 1: 3.
Preferably, one side of the driven bevel gear, which is far away from the driving bevel gear, is connected and meshed with an auxiliary bevel gear, and the auxiliary bevel gear is rotatably connected with the side wall of the top box base through a rotating shaft.
Preferably, the outer end of the rotating shaft connected with the auxiliary bevel gear is provided with a hexagonal wrench head, and the hexagonal wrench head is connected with an external wrench.
Preferably, the external wrench comprises a crank, a clamping joint connected with one end of the crank, and a handle rotationally connected with the other end of the crank, wherein the clamping joint is matched and sleeved with the hexagonal wrench head.
Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable structure and strong functionality, and has the following advantages:
1. according to the invention, the motor is controlled to work, the output shaft of the motor is decelerated and torque-increased through the planetary speed reduction component arranged in the reduction box, the steering transmission component arranged in the top box base is used for changing the direction, the screw rod is used for outputting power, the screw rod is driven to be in threaded connection with the chuck base arranged on the upper chuck for transmission, so that the upper chuck is driven to lift, and the steel bar fixed on the upper chuck is pressed down;
2. when the upper clamping head descends, the pressing plate presses the displacement detection rod, the displacement sensor is used for detecting the displacement change of the displacement detection rod, and after the upper reinforcing steel bar descends by 20mm, the power supply to the motor is stopped, so that poor welding caused by excessive pressing of the upper reinforcing steel bar or insufficient descending displacement is avoided;
3. according to the invention, the output shaft of the motor is subjected to speed reduction and torque increase through the planetary speed reduction component arranged in the reduction box, and the gear ratio of the driving bevel gear and the driven bevel gear arranged in the top box seat is 1:3, so that the effects of speed reduction and torque increase are further achieved, and the power output of the motor is effectively ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a front view of the structure of the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 3;
fig. 5 is a side view of the structure of the present invention.
In the figure: the device comprises a top box base 1, a lower chuck 2, an upper chuck 201, a chuck base 3, a jaw 4, a lead screw barrel base 5, a tension lead screw 6, a handle 7, a guide rod 8, a sliding rod part 801, a reduction box 9, a motor 10, a planetary reduction component 11, a sun gear 12, a planet gear 13, an internal gear 14, a planet gear base 15, a reduction output shaft 16, a driving bevel gear 17, an auxiliary bevel gear 171, a driven bevel gear 18, a screw 19, a displacement sensor 20, a displacement detection rod 21, a pressure plate 22, a hexagonal wrench 23, an external wrench 24, a clamping joint 25, a crank 26 and a handle 27.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: an automatic control device of a steel bar electroslag press welder comprises a top box base 1, a lower chuck 2 and an upper chuck 201, as shown in a combined drawing of figure 1 and figure 3, the lower chuck 2 and the upper chuck 201 are respectively composed of a chuck base 3, a jaw 4, a lead screw cylinder base 5 and a tension lead screw 6, one side end of the chuck base 3 is welded with the jaw 4, the jaw 4 is an arc-shaped supporting body which is bent and wrapped forwards, the front side wall of the chuck base 3 is welded with the lead screw cylinder base 5, the tension lead screw 6 is screwed in the lead screw cylinder base 5, one end of the tension lead screw 6 far away from the jaw 4 is fixedly connected with a handle 7, the lower surface of the top box base 1 is welded with a pair of vertically downward guide rods 8, the lower ends of the guide rods 8 are connected with the chuck base 3 in the lower chuck 2 through threads, the upper middle part of the guide rods 8 is a slide rod part 801, the slide rod part 801 penetrates through two ends of the chuck base 3 arranged in the upper chuck 201, and the slide rod part 801 is connected with the chuck base 3 in the upper chuck in a sliding way, so that the upper chuck 201 can slide in the axial direction of the slide bar portion 801.
Referring to fig. 3 and 4, one side of the top box base 1 is provided with an electric motor 10 and a reduction box 9 connected with an output shaft of the electric motor 10, a planetary reduction member 11 is arranged inside the reduction box 9, the planetary reduction member 11 is composed of a sun gear 12, planet gears 13, an internal gear 14, a planet gear base 15 and a reduction output shaft 16, an output shaft end of the electric motor 10 is provided with the sun gear 12, three planet gears 13 are meshed with the sun gear 12 simultaneously, the inner wall of the reduction box 9 is provided with the internal gear 14 meshed with the three planet gears 13 simultaneously, the planet gears 13 are connected to the planet gear base 15 through a rotating shaft, the reduction output shaft 16 connected to the planet gear base 15 penetrates into the top box base 1, the reduction box 9 is fixedly connected with the side wall of the top box base 1 through bolts, and the output shaft of the electric motor 10 is subjected to speed reduction and torque increase through the planetary reduction member 11 inside the reduction box 9, and is output by a reduction output shaft 16.
Referring to fig. 3 and 4, a steering transmission member is arranged inside the top box base 1, the steering transmission member includes a driving bevel gear 17, a driven bevel gear 18 and a screw rod 19, the driving bevel gear 17 is fixedly arranged at the end of the deceleration output shaft 16, the driven bevel gear 18 in meshing transmission with the driving bevel gear 17 is connected with the screw rod 19, the screw rod 19 penetrates out along the bottom of the top box base 1 and makes the deceleration output shaft 16 and the screw rod 19 form an angle of 90 degrees, the lower end of the screw rod 19 is provided with an external thread, the lower end of the screw rod 19 penetrates through and is in threaded connection with the middle of the chuck base 3 arranged on the upper chuck 201, the motor 10 is controlled to work, the output shaft of the motor 10 is decelerated and torque-increased through a planetary deceleration member 11 arranged inside the reduction box 9, the deceleration output shaft 16 outputs power, the driving bevel gear 17 and the driven bevel gear 18 are in meshing transmission under the driving of the deceleration output shaft 16, the screw rod 19 is driven to be in threaded connection with the chuck seat 3 arranged on the upper chuck 201, so that the upper chuck 201 is driven to lift.
The gear ratio of the driving bevel gear 17 to the driven bevel gear 18 is 1:3, so that the effects of speed reduction and torque increase are achieved, one side, away from the driving bevel gear 17, of the driven bevel gear 18 is connected and meshed with the auxiliary bevel gear 171, and the auxiliary bevel gear 171 is rotatably connected with the side wall of the top box base 1 through a rotating shaft, so that stable meshing transmission between the driving bevel gear 17 and the driven bevel gear 18 is guaranteed.
Referring to fig. 1 and 3, a hexagonal wrench 23 is disposed at an outer end of a rotating shaft connected to the auxiliary bevel gear 171, the hexagonal wrench 23 is connected to an external wrench 24, the external wrench 24 includes a crank 26, a bayonet 25 connected to one end of the crank 26, and a handle 27 rotatably connected to the other end of the crank 26, the bayonet 25 is fittingly engaged with the hexagonal wrench 23, and the handle 27 is held by a hand and the crank 26 is used for twisting the hexagonal wrench 23, so that the auxiliary bevel gear 171 is engaged with the driven bevel gear 18 for transmission, thereby realizing manual driving.
Referring to fig. 2 and 5, a displacement sensor 20 is fixedly connected to a rear side wall of the chuck base 3 of the lower chuck 2 through a bolt, a vertical upward displacement detection rod 21 is disposed at an upper end of the displacement sensor 20, a pressing plate 22 is welded to a rear side wall of the chuck base 3 of the upper chuck 201, and an upper end of the displacement detection rod 21 is closely attached to a lower surface of the pressing plate 22, when the upper chuck 201 descends, the pressing plate 22 presses down the displacement detection rod 21, the displacement sensor 20 is used for detecting displacement change of the displacement detection rod 21, so that the displacement change is fed back to a control center of the electroslag pressure welding equipment, and whether power supply to the motor 10 is stopped is determined.
The working principle is as follows: when the device works, an upper reinforcing steel bar and a lower reinforcing steel bar are respectively sleeved in arc concave parts of jaws 4 arranged on a lower chuck 2 and an upper chuck 201, and the ends of elastic lead screws 6 are pressed against the reinforcing steel bars under the thread meshing relationship of the elastic lead screws 6 and a lead screw cylinder seat 5 by turning handles 7 in the lower chuck 2 and the upper chuck 201, so that the two reinforcing steel bars are aligned and fixed; wrapping and filling welding agent at the butt joint of the two steel bars, switching on a power supply of an electric welding machine, respectively lapping two welding handle wires on the two steel bars, carrying out arc striking, and carrying out melt welding on the butt joint of the two steel bars;
in the welding process of two steel bars, the motor 10 is controlled to work, the output shaft of the motor 10 is decelerated and torque-increased through the planetary deceleration component 11 arranged in the reduction box 9, the deceleration output shaft 16 outputs power, the driving bevel gear 17 at the end part of the deceleration output shaft 16 is meshed with the driven bevel gear 18 for transmission, the screw rod 19 is driven to be in threaded connection with the chuck seat 3 arranged on the upper chuck 201, so that the upper chuck 201 is driven to lift, the steel bars fixed on the upper chuck 201 are pressed down, manual operation is not needed in the process, the operation is convenient, the pressing-down speed of the steel bars is stable, and the welding effect is effectively guaranteed;
when the upper chuck 201 descends, the pressure plate 22 presses down the displacement detection rod 21, the displacement sensor 20 is used for detecting the displacement change of the displacement detection rod 21, so that the displacement change is fed back to the control center of the electroslag pressure welding equipment, after the upper steel bar is detected to descend by 20mm, the power supply of the motor 10 is stopped, and the situation that the upper steel bar is excessively pressed down or the displacement is insufficient is avoided, so that poor welding is caused.
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 (1)
1. The utility model provides a reinforcing bar electroslag press welder automatic control device, includes top box seat (1), lower dop (2) and last dop (201), its characterized in that: the lower clamping head (2) and the upper clamping head (201) are respectively composed of a clamping head seat (3), a jaw (4), a lead screw cylinder seat (5) and a tension screw rod (6), wherein the jaw (4) is welded at one side end of the clamping head seat (3), the jaw (4) is an arc-shaped supporting body which is bent and wrapped towards the front side, the lead screw cylinder seat (5) is welded at the front side wall of the clamping head seat (3), the tension screw rod (6) is connected in the lead screw cylinder seat (5) in a threaded manner, one end, far away from the jaw (4), of the tension screw rod (6) is fixedly connected with a handle (7), a pair of guide rods (8) which vertically face downwards are welded at the lower surface of the top box seat (1), the lower ends of the guide rods (8) are connected with the clamping head seat (3) in the lower clamping head (2) in a threaded manner, the upper middle of the guide rods (8) is a sliding rod part (801), and the sliding rod part (801) penetrates through the two ends of the clamping head seat (3) arranged in the upper clamping head (201), the sliding rod part (801) is connected with a clamping head seat (3) arranged in the upper clamping head (201) in a sliding mode, one side of the top box seat (1) is provided with a motor (10) and a reduction gearbox (9) connected with an output shaft of the motor (10), the reduction gearbox (9) is fixedly connected with the side wall of the top box seat (1) through bolts, the rear side wall of the clamping head seat (3) arranged on the lower clamping head (2) is fixedly connected with a displacement sensor (20) through bolts, the upper end of the displacement sensor (20) is provided with a vertically upward displacement detection rod (21), the rear side wall of the clamping head seat (3) arranged on the upper clamping head (201) is welded with a pressing plate (22), and the upper end of the displacement detection rod (21) is tightly attached to the lower surface of the pressing plate (22);
a steering transmission member is arranged in the top box seat (1), the steering transmission member comprises a driving bevel gear (17), a driven bevel gear (18) and a screw rod (19), the driving bevel gear (17) is fixedly arranged at the end part of the speed reduction output shaft (16), the driven bevel gear (18) in meshing transmission with the driving bevel gear (17) is connected with the screw rod (19), and the screw rod (19) penetrates out along the bottom of the top box seat (1);
one side of the driven bevel gear (18) far away from the driving bevel gear (17) is connected and meshed with an auxiliary bevel gear (171), and the auxiliary bevel gear (171) is rotationally connected with the side wall of the top box seat (1) through a rotating shaft;
a hexagonal turning head (23) is arranged at the outer end part of the rotating shaft connected with the auxiliary bevel gear (171), and the hexagonal turning head (23) is connected with an external wrench (24);
the external wrench (24) comprises a crank (26), a clamping connector (25) connected with one end of the crank (26) and a handle (27) rotationally connected with the other end of the crank (26), and the clamping connector (25) is matched and sleeved with the hexagonal wrench head (23);
a planetary reduction component (11) is arranged in the reduction gearbox (9), the planetary reduction component (11) is composed of a sun wheel (12), planet wheels (13), an internal gear (14), a planet wheel seat (15) and a reduction output shaft (16), the output shaft end of the motor (10) is provided with the sun wheel (12), the sun wheel (12) is meshed with the three planet wheels (13) simultaneously, the internal gear (14) meshed with the three planet wheels (13) simultaneously is arranged on the inner wall of the reduction gearbox (9), the planet wheels (13) are connected to the planet wheel seat (15) through rotating shafts, and the reduction output shaft (16) connected to the planet wheel seat (15) penetrates into the top box seat (1);
the lower end part of the screw rod (19) is provided with an external thread, and the lower end of the screw rod (19) penetrates through and is in threaded connection with the middle part of a clamping head seat (3) arranged on the upper clamping head (201);
the speed reduction output shaft (16) and the screw (19) are arranged at 90 degrees, and the gear ratio of the driving bevel gear (17) to the driven bevel gear (18) is 1: 3;
when the device works, an upper reinforcing steel bar and a lower reinforcing steel bar are respectively sleeved in arc concave parts of jaws (4) arranged on a lower clamping head (2) and an upper clamping head (201), and the ends of an elastic screw rod (6) are pressed against the reinforcing steel bars under the thread meshing relationship of the elastic screw rod (6) and a screw rod cylinder seat (5) by turning handles (7) in the lower clamping head (2) and the upper clamping head (201), so that the two reinforcing steel bars are aligned and fixed; wrapping and filling welding agent at the butt joint of the two steel bars, switching on a power supply of an electric welding machine, respectively lapping two welding handle wires on the two steel bars, carrying out arc striking, and carrying out melt welding on the butt joint of the two steel bars;
in the welding process of two steel bars, the motor (10) is controlled to work, the output shaft of the motor (10) is decelerated and torque-increased through a planetary deceleration component (11) arranged in a reduction box (9), power is output through a deceleration output shaft (16), a drive bevel gear (17) at the end part of the deceleration output shaft (16) is meshed with a driven bevel gear (18) for transmission, a screw (19) is driven to be in threaded connection with a chuck seat (3) arranged on an upper chuck (201) for transmission, so that the upper chuck (201) is driven to lift, the steel bars fixed on the upper chuck (201) are pressed downwards, manual operation is not needed in the process, the operation is convenient, the pressing speed of the steel bars is stable, and the welding effect is effectively guaranteed;
when going up dop (201) and descending, make clamp plate (22) push down displacement probe rod (21), displacement sensor (20) are used for detecting the displacement change of displacement probe rod (21) to with displacement change feedback to electroslag pressure welding equipment's control center, after detecting the reinforcing bar and descend 20mm, stop the power supply to motor (10), avoid going up the reinforcing bar and excessively pushing down, or descend the poor welding that the displacement is not enough and lead to.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010078008.5A CN111250864B (en) | 2020-02-02 | 2020-02-02 | Automatic control device of steel bar electroslag press welder |
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| CN202010078008.5A CN111250864B (en) | 2020-02-02 | 2020-02-02 | Automatic control device of steel bar electroslag press welder |
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| CN111250864B true CN111250864B (en) | 2021-12-17 |
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| CN113199128B (en) * | 2021-05-31 | 2022-02-25 | 华新建工集团有限公司 | Steel bar welding positioning device for building construction |
| CN115213548B (en) * | 2022-09-20 | 2022-12-02 | 中建六局华南建设有限公司 | Steel bar welding device for building construction |
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| CN109048038A (en) * | 2018-09-30 | 2018-12-21 | 佛山市三水区诺尔贝机器人研究院有限公司 | A kind of adaptive agitating device and its control method of friction stir weld |
| CN109590148A (en) * | 2019-01-23 | 2019-04-09 | 山东交通学院 | A kind of robot and working method for rail clip derusting maintenance |
| CN110181162A (en) * | 2019-06-26 | 2019-08-30 | 中铝河南洛阳铝箔有限公司 | A kind of Double-zero aluminum foil connector is servo-actuated welder and application method |
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| CN2187515Y (en) * | 1994-05-19 | 1995-01-18 | 李小平 | Reinforcing bar electroslag welding executive mechanism |
| JP5419287B2 (en) * | 2010-04-12 | 2014-02-19 | 日鐵住金溶接工業株式会社 | Electroslag welding equipment |
| CN110303237A (en) * | 2018-03-27 | 2019-10-08 | 湖北乾奥建设工程有限公司 | Steel bar flux press welding positioning device |
| CN209505411U (en) * | 2019-01-08 | 2019-10-18 | 重庆菲斯塔新能源汽车科技有限公司 | A kind of integrated driving device |
| CN110107658B (en) * | 2019-04-29 | 2022-05-10 | 黎李韦 | Fluted disc linkage speed change mechanism and fluted disc linkage speed changer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109048038A (en) * | 2018-09-30 | 2018-12-21 | 佛山市三水区诺尔贝机器人研究院有限公司 | A kind of adaptive agitating device and its control method of friction stir weld |
| CN109590148A (en) * | 2019-01-23 | 2019-04-09 | 山东交通学院 | A kind of robot and working method for rail clip derusting maintenance |
| CN110181162A (en) * | 2019-06-26 | 2019-08-30 | 中铝河南洛阳铝箔有限公司 | A kind of Double-zero aluminum foil connector is servo-actuated welder and application method |
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Effective date of registration: 20211201 Address after: 251600 Keyuan street, Shanghe Economic Development Zone, Jinan City, Shandong Province Applicant after: Shandong high speed new material technology Co.,Ltd. Address before: 312500 Building 8, Houxi Village Industrial Zone, Qixing Street, Xinchang County, Shaoxing City, Zhejiang Province Applicant before: XINCHANG COUNTY QIXING STREET YINGJIE MACHINERY PLANT |
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