CN113998456A - Full-automatic turnover system for grinding wheel special for TFT glass - Google Patents
Full-automatic turnover system for grinding wheel special for TFT glass Download PDFInfo
- Publication number
- CN113998456A CN113998456A CN202111529627.2A CN202111529627A CN113998456A CN 113998456 A CN113998456 A CN 113998456A CN 202111529627 A CN202111529627 A CN 202111529627A CN 113998456 A CN113998456 A CN 113998456A
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- feeding
- turnover
- grinding wheel
- ground rail
- fixedly connected
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/902—Devices for picking-up and depositing articles or materials provided with drive systems incorporating rotary and rectilinear movements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention discloses a full-automatic overturning system of a grinding wheel special for TFT glass, which comprises a feeding system, a conveying system, an overturning system and a discharging system, wherein the conveying system comprises a gripper machine ground rail fixed on the ground, and a feeding portal frame and a discharging portal frame which are driven by a driving mechanism to move on the surface of the gripper machine ground rail respectively; the invention relates to the technical field of TFT glass deep processing equipment, the time-consuming and labor-consuming work is completely automated, workers only need to place a grinding wheel to be turned at a designated position and start equipment, the grinding wheel is transported by a transport trolley, a gripper grabs the material to be fed, a turning machine turns, the gripper grabs the material to be fed, and the transport trolley is transported out to complete a task, so that manpower and material resources are saved, potential safety hazards are reduced, the replacement efficiency is improved, the production efficiency and the economic benefit are greatly improved, the probability of accidents is reduced, and accidents are avoided.
Description
Technical Field
The invention relates to the technical field of TFT glass deep processing equipment, in particular to a full-automatic turning system for a grinding wheel special for TFT glass.
Background
In the TFT glass forming process, the tin bath temperature is inhomogeneous (the factor that influences tin bath temperature variation is many) can lead to the glass liquid viscosity to appear the difference, influences the liquid stream and flows to make the glass liquid stream produce the speed difference of moving, the glass liquid is tensile inhomogeneous, and the surface produces the ripple, finally influences TFT glass surface roughness and waviness. Therefore, in the deep processing of the TFT glass substrate, in order to eliminate excessive roughness and waviness, it is necessary to perform grinding and polishing several times with equipment.
After years of research, practice and development, the grinding equipment which is popular nowadays is provided with a plurality of grinding wheels, grinding pads made of different materials are adhered on the grinding wheels, and grinding fluid between the grinding pads and the glass substrate flows through the rotation of the grinding wheels and the movement of the glass substrate, so that the surface of the glass substrate is ground, and the surface quality of the glass substrate is changed.
As shown in the attached FIG. 5, the grinding wheel is generally made of aluminum, has a diameter of 1.5 m to 2 m and a thickness of about 10 mm, and has a high requirement on flatness because it is used for grinding a glass substrate. The grinding wheel that glues is the expendable part, needs often to be changed, need pull down the grinding wheel from equipment and overturn when changing and come, then the artifical grinding pad that changes, overturns the grinding wheel after the completion again, later installs the grinding wheel again, and this process is very frequent, because the grinding wheel is very big and thin again, if the upset process does not use equipment, the efficiency is very low and the danger of damage is very big.
Disclosure of Invention
The invention solves the problems that: the grinding wheel that glues is the expendable part, needs often to be changed, need pull down the grinding wheel from equipment and overturn when changing and come, then the artifical grinding pad that changes, overturns the grinding wheel after the completion again, later installs the grinding wheel again, and this process is very frequent, because the grinding wheel is very big and thin again, if the upset process does not use equipment, the efficiency is very low and the danger of damage is very big.
The invention aims to solve the defects in the prior art, and provides a full-automatic turnover system for a grinding wheel special for TFT glass.
In order to achieve the purpose, the invention adopts the following technical scheme:
a full-automatic turnover system for grinding wheels special for TFT glass comprises a feeding system, a conveying system, a turnover system and a discharging system, wherein the conveying system comprises a gripper machine ground rail fixed on the ground, and a feeding portal frame and a discharging portal frame which are driven by a driving mechanism to move on the surface of the gripper machine ground rail respectively;
the turnover system is including setting up the upset machine in material loading portal frame and unloading portal frame below, the upset machine includes the frame, support frame fixedly connected with support is passed through at the top of frame, the inner chamber fixedly connected with bearing of support, the inner circle fixedly connected with pivot of bearing, the one end of pivot is rotated and is connected with the upset roof beam, one side of upset roof beam is rotated and is connected with the cylinder, the one end of the piston rod of cylinder is rotated and is connected with the clamping jaw, the clamping jaw is close to one side of cylinder and is rotated with the surface of upset roof beam and be connected.
As a further technical scheme of the invention, the top of the frame is fixedly connected with a speed reducing motor and a bearing with a seat respectively, the output end of the speed reducing motor is in transmission connection with a transmission shaft which is rotatably connected with an inner cavity of the bearing with the seat, the surface of the transmission shaft is fixedly connected with a driving sprocket, the surface of the rotation shaft is fixedly connected with a driven sprocket, and the driving sprocket and the driven sprocket are in transmission connection through a chain.
As a further technical scheme of the invention, the number of the turnover beams is two, the turnover beams are symmetrically distributed at the top of the turnover machine, the number of the cylinders is four, the turnover beams are symmetrically and uniformly distributed at the upper part and the lower part of the turnover beam, and one side of the clamping jaw is fixedly connected with a wear-resistant rubber pad.
As a further technical scheme of the invention, one side of the support is fixedly connected with a check ring which is rotationally connected with the surface of the rotating shaft.
As a further technical scheme, the feeding system comprises a feeding trolley ground rail and a feeding transport trolley, wherein the feeding transport trolley is driven by a driving mechanism to move on the surface of the feeding trolley ground rail, the surface of the feeding transport trolley is movably connected with grinding wheels, and the feeding transport trolley is arranged below the initial position of a feeding portal frame.
As a further technical scheme of the invention, the blanking system comprises a blanking trolley ground rail and a blanking transport trolley which is driven by a driving mechanism to move on the surface of the blanking trolley ground rail, and the blanking transport trolley is arranged below the initial position of the blanking portal frame.
As a further technical scheme of the invention, the bottom of the frame is connected with wheels for moving the frame in a rolling manner, and one side of each wheel is fixedly connected with a supporting leg for limiting the wheel.
As a further technical scheme of the invention, the gripper ground rail, the feeding trolley ground rail and the discharging trolley ground rail are horizontally arranged.
The specific operation steps are as follows:
the method comprises the following steps that firstly, feeding is carried out through a feeding system, grinding wheels are placed on a feeding transport trolley, the grinding wheels are driven by a driving mechanism to move on a ground rail of the feeding trolley and then move to the lower side of a feeding portal frame, and a feeding gripper at the bottom of the feeding portal frame is driven by the driving mechanism to grip the grinding wheels and move to the upper side of a turnover machine;
step two, the air cylinder at the top of the turnover beam drives the clamping jaw to open at the moment, then the feeding gripper drives the grinding wheel to descend and places the grinding wheel above the clamping jaw below, the feeding gripper resets after being placed in place, then the air cylinder at the top of the turnover beam drives the clamping jaw above to close, the grinding wheel is clamped, the speed reduction motor is started at the moment to drive the transmission shaft to rotate in the bearing of the belt seat, the transmission shaft drives the driving sprocket to rotate, the driving sprocket drives the driven sprocket to rotate through a chain, the driven sprocket rotates to drive the rotating shaft to rotate in the bearing, the turnover beam is driven to rotate by one hundred eighty degrees to drive the grinding wheel to turn over, and then the air cylinder at the top drives the clamping jaw to open;
and step three, moving the blanking portal frame to the position above the grinding wheel, grabbing the grinding wheel through the blanking gripper, conveying the grinding wheel onto the blanking transport trolley, driving the blanking transport trolley to move on a ground rail of the blanking trolley through the driving mechanism, and outputting the grinding wheel.
The invention has the beneficial effects that:
1. with this work full automation that wastes time and energy, the workman only needs to wait to overturn the grinding miller and place at assigned position and starting equipment, through the travelling bogie transportation, the tongs snatchs the material loading, the upset of upset machine, the tongs snatchs the unloading, the task can be accomplished after the travelling bogie transports, from this both use manpower and materials sparingly, reduce the potential safety hazard, change efficiency has been improved again, very big promotion production efficiency and economic benefits, reduce the probability that the accident appears, avoid the emergence of accident simultaneously.
2. The gantry type bilateral gear rack transmission mechanism is provided with 4 groups of clamping jaws for fixing the grinding wheel, wherein two surfaces of each clamping jaw can be opened and can move forwards, backwards, leftwards and rightwards to be matched with the grinding wheel with each size, the contact surfaces of the clamping jaws and the grinding wheel are filled with anti-skid wear-resistant materials and are convenient to disassemble and replace, and the gantry type bilateral gear rack transmission mechanism enables the gripper to walk stably and to be stressed evenly; the turnover machine completes the turnover action by the electric control rotating mechanism, has good synchronism on two sides, flexible turnover and convenient operation, simultaneously has a locking function, and can lock the rotating mechanism after the turnover is completed, thereby avoiding accidents.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a side view of the upender of the present invention;
FIG. 3 is a cross-sectional view of the jaw assembly of the present invention;
FIG. 4 is a side view of the invert assembly of the present invention;
fig. 5 is a schematic diagram of a prior art structure.
In the figure: 1. a feeding trolley ground rail; 2. a feeding transport trolley; 3. a grinding wheel; 4. a gripper ground rail; 5. feeding a portal frame; 6. a feeding gripper; 7. a turnover machine; 8. blanking a portal frame; 9. a blanking gripper; 10. blanking transport trolley; 11. blanking a ground rail of the trolley; 12. a frame; 13. a drive sprocket; 14. a reduction motor; 15. a chain; 16. turning over the beam; 17. a cylinder; 18. a clamping jaw; 19. a driven sprocket; 20. a support; 21. a rotating shaft; 22. a support leg; 23. a wheel; 24. a bearing; 25. a retainer ring; 26. a wear-resistant rubber pad; 27. a pedestal bearing; 28. a drive shaft.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1-4, a full-automatic turnover system for grinding wheels special for TFT glass comprises a feeding system, a conveying system, a turnover system and a discharging system, wherein the conveying system comprises a gripper ground rail 4 fixed on the ground, and a feeding gantry 5 and a discharging gantry 8 which are driven by a driving mechanism to move on the surface of the gripper ground rail 4 respectively, the bottom of the feeding gantry 5 is fixedly connected with a feeding gripper 6, the lower part of the discharging gantry 8 is fixedly connected with a discharging gripper 9, the grinding wheels 3 are placed on a feeding transport trolley 2, are driven by the driving mechanism to move on the feeding trolley ground rail 1 and then move to the lower part of the feeding gantry 5, and the feeding gripper 6 at the bottom of the feeding gantry 5 is driven by the driving mechanism to grip the grinding wheels 3 and move to the upper part of the turnover machine 7;
the turnover system comprises a turnover machine 7 arranged below a feeding portal frame 5 and a discharging portal frame 8, the turnover machine 7 comprises a frame 12, the top of the frame 12 is fixedly connected with a support 20 through a support frame, the inner cavity of the support 20 is fixedly connected with a bearing 24, the inner ring of the bearing 24 is fixedly connected with a rotating shaft 21, one end of the rotating shaft 21 is rotatably connected with a turnover beam 16, one side of the turnover beam 16 is rotatably connected with a cylinder 17, one end of a piston rod of the cylinder 17 is rotatably connected with a clamping jaw 18, one side of the clamping jaw 18 close to the cylinder 17 is rotatably connected with the surface of the turnover beam 16, the time-consuming and labor-consuming work is completely automated, the worker only needs to place a grinding wheel 3 to be turned over at a specified position and start equipment, the grinding wheel is transported by a transport trolley, the gripper grabs the feeding material, the turnover machine 7 is turned over, the gripper grabs the discharging material, the transport trolley can finish the task after being transported, manpower and material resources are saved, The potential safety hazard is reduced, the replacement efficiency is improved, the production efficiency and the economic benefit are greatly improved, the probability of accidents is reduced, and meanwhile, the accidents are avoided.
The top of the frame 12 is fixedly connected with a speed reducing motor 14 and a bearing 27 with a seat respectively, the output end of the speed reducing motor 14 is in transmission connection with a transmission shaft 28 which is in transmission connection with the inner cavity of the bearing 27 with the seat, the surface of the transmission shaft 28 is fixedly connected with a driving sprocket 13, the surface of a rotating shaft 21 is fixedly connected with a driven sprocket 19, the driving sprocket 13 and the driven sprocket 19 are in transmission connection through a chain 15, two turnover beams 16 are arranged and are symmetrically distributed on the top of the turnover machine 7, four air cylinders 17 are arranged and are symmetrically and uniformly distributed on the upper and lower sides of the turnover beam 16, one side of each clamping jaw 18 is fixedly connected with a wear-resistant rubber pad 26, the air cylinders 17 on the top of the turnover beam 16 drive the clamping jaws 18 to open at the moment, then the feeding grippers 6 drive the grinding wheels 3 to descend, the feeding grippers 6 are placed above the clamping jaws 18 below, the feeding grippers 6 reset after being placed in place, then the air cylinders 17 on the top of the turnover beam 16 drive the clamping jaws 18 to close, the grinding wheel 3 is clamped, at the moment, the speed reducing motor 14 is started to drive the transmission shaft 28 to rotate in the bearing 27 with the base, the transmission shaft 28 drives the driving chain wheel 13 to rotate, the driving chain wheel 13 drives the driven chain wheel 19 to rotate through the chain 15, the driven chain wheel 19 rotates to drive the rotating shaft 21 to rotate in the bearing 24, the overturning beam 16 is driven to rotate by one hundred eighty degrees, the grinding wheel 3 is driven to overturn, and then the air cylinder 17 at the top drives the clamping jaw 18 to open.
A retainer ring 25 rotatably coupled to a surface of the rotating shaft 21 is fixedly coupled to one side of the support 20.
The feeding system comprises a feeding trolley ground rail 1 and a feeding transport trolley 2 which drives the surface of the feeding trolley ground rail 1 to move through a driving mechanism, the surface of the feeding transport trolley 2 is movably connected with a grinding wheel 3, and the feeding transport trolley 2 is arranged below the initial position of a feeding portal frame 5.
The blanking system comprises a blanking trolley ground rail 11 and a blanking transport trolley 10 which is driven by a driving mechanism to move on the surface of the blanking trolley ground rail 11, the blanking transport trolley 10 is arranged below the initial position of a blanking portal frame 8, the blanking portal frame 8 moves to the upper side of a grinding wheel 3, the grinding wheel 3 is grabbed by a blanking grab 9 and then conveyed to the blanking transport trolley 10, the blanking transport trolley 10 is driven by the driving mechanism to move on the blanking trolley ground rail 11, and the grinding wheel 3 is output.
The bottom of the frame 12 is connected with a wheel 23 for moving the frame 12 in a rolling way, and one side of the wheel 23 is fixedly connected with a supporting leg 22 for limiting the wheel 23.
The grab handle ground rail 4, the feeding trolley ground rail 1 and the discharging trolley ground rail 11 are horizontally arranged.
The specific operation steps are as follows:
the method comprises the steps of firstly, feeding, namely feeding through a feeding system, placing a grinding wheel 3 on a feeding transport trolley 2, driving the grinding wheel to move on a ground rail 1 of the feeding trolley through a driving mechanism, then moving the grinding wheel to the lower part of a feeding portal frame 5, driving a feeding gripper 6 at the bottom of the feeding portal frame 5 through the driving mechanism to grip the grinding wheel 3, and moving the grinding wheel to the upper part of a turnover machine 7;
step two, at the moment, the air cylinder 17 at the top of the turnover beam 16 drives the clamping jaw 18 to open, then the feeding gripper 6 drives the grinding wheel 3 to descend and is placed above the clamping jaw 18 below, the feeding gripper 6 resets after being placed in place, then the air cylinder 17 at the top of the turnover beam 16 drives the clamping jaw 18 above to close, the grinding wheel 3 is clamped, at the moment, the speed reduction motor 14 is started to drive the transmission shaft 28 to rotate in the belt seat bearing 27, the transmission shaft 28 drives the driving sprocket 13 to rotate, the driving sprocket 13 drives the driven sprocket 19 to rotate through the chain 15, the driven sprocket 19 rotates to drive the rotating shaft 21 to rotate in the bearing 24, the turnover beam 16 is driven to rotate by one hundred eighty degrees, the grinding wheel 3 is driven to turn over, and then the air cylinder 17 at the top drives the clamping jaw 18 to open;
and step three, moving the blanking portal frame 8 to the position above the grinding wheel 3, grabbing the grinding wheel 3 through the blanking gripper 9, then conveying the grinding wheel onto the blanking transport trolley 10, driving the blanking transport trolley 10 to move on the blanking trolley ground rail 11 through the driving mechanism, and outputting the grinding wheel 3.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A full-automatic turning system of a grinding wheel special for TFT glass comprises a feeding system, a conveying system, a turning system and a discharging system, and is characterized in that the conveying system comprises a gripper machine ground rail (4) fixed on the ground, and a feeding portal frame (5) and a discharging portal frame (8) which are driven by a driving mechanism to move on the surface of the gripper machine ground rail (4) respectively, wherein the bottom of the feeding portal frame (5) is fixedly connected with a feeding gripper (6), and the lower part of the discharging portal frame (8) is fixedly connected with a discharging gripper (9);
the turnover system comprises a turnover machine (7) arranged below a feeding portal frame (5) and a discharging portal frame (8), wherein the turnover machine (7) comprises a frame (12), a support frame fixedly connected with support seat (20) is arranged at the top of the frame (12), an inner cavity fixedly connected with bearing (24) of the support seat (20), an inner ring fixedly connected with rotating shaft (21) of the bearing (24), a turnover beam (16) is connected to one end of the rotating shaft (21) in a rotating manner, a cylinder (17) is connected to one side of the turnover beam (16) in a rotating manner, a clamping jaw (18) is connected to one end of a piston rod of the cylinder (17) in a rotating manner, and one side, close to the cylinder (17), of the clamping jaw (18) is connected with the surface of the turnover beam (16) in a rotating manner.
2. The full-automatic turnover system for the grinding wheel special for the TFT glass according to claim 1, wherein a speed reduction motor (14) and a bearing with a seat (27) are fixedly connected to the top of the frame (12), a transmission shaft (28) rotatably connected to an inner cavity of the bearing with a seat (27) is in transmission connection with an output end of the speed reduction motor (14), a driving sprocket (13) is fixedly connected to a surface of the transmission shaft (28), a driven sprocket (19) is fixedly connected to a surface of the rotating shaft (21), and the driving sprocket (13) and the driven sprocket (19) are in transmission connection through a chain (15).
3. The full-automatic turnover system for the grinding wheels special for the TFT glass according to claim 1, wherein the turnover beams (16) are arranged in two numbers and symmetrically distributed at the top of the turnover machine (7), the air cylinders (17) are arranged in four numbers and symmetrically and uniformly distributed at the upper and lower parts of the turnover beams (16), and one side of the clamping jaw (18) is fixedly connected with a wear-resistant rubber pad (26).
4. The full-automatic turnover system for the grinding wheel special for TFT glass according to claim 1, characterized in that one side of the support (20) is fixedly connected with a retaining ring (25) which is rotatably connected with the surface of the rotating shaft (21).
5. The full-automatic turnover system for the grinding wheels special for TFT glass according to claim 1, wherein the feeding system comprises a feeding trolley ground rail (1) and a feeding transport trolley (2) which drives the feeding trolley ground rail (1) to move on the surface through a driving mechanism, the grinding wheels (3) are movably connected to the surface of the feeding transport trolley (2), and the feeding transport trolley (2) is arranged below the initial position of the feeding portal frame (5).
6. The full-automatic turnover system for the grinding wheels special for TFT glass according to claim 1, wherein the blanking system comprises a blanking trolley ground rail (11) and a blanking transport trolley (10) driven by a driving mechanism to move on the surface of the blanking trolley ground rail (11), and the blanking transport trolley (10) is arranged below the initial position of the blanking portal frame (8).
7. The full-automatic turnover system for the grinding wheels special for the TFT glass as claimed in claim 1, wherein the grabbing hand cart ground rail (4), the feeding trolley ground rail (1) and the discharging trolley ground rail (11) are horizontally arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111529627.2A CN113998456B (en) | 2021-12-14 | 2021-12-14 | Full-automatic tilting system of special grinding wheel of TFT glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111529627.2A CN113998456B (en) | 2021-12-14 | 2021-12-14 | Full-automatic tilting system of special grinding wheel of TFT glass |
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| Publication Number | Publication Date |
|---|---|
| CN113998456A true CN113998456A (en) | 2022-02-01 |
| CN113998456B CN113998456B (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111529627.2A Active CN113998456B (en) | 2021-12-14 | 2021-12-14 | Full-automatic tilting system of special grinding wheel of TFT glass |
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| Country | Link |
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| CN (1) | CN113998456B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115196299A (en) * | 2022-08-23 | 2022-10-18 | 宝武集团马钢轨交材料科技有限公司 | Automatic conveying system and method for thermal-state wheel round billets |
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| CN113415610A (en) * | 2021-06-30 | 2021-09-21 | 广州市惠迪电子科技有限公司 | A equipment that is used for transfer upset to lean on in production line of panel TV |
| CN214610058U (en) * | 2021-03-03 | 2021-11-05 | 中铁物资平顶山轨枕有限公司 | Precast beam tilter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07291578A (en) * | 1994-04-28 | 1995-11-07 | Kawasaki Steel Corp | Reversal attachment/detachment device for continuous casting facility |
| CN206901262U (en) * | 2017-01-03 | 2018-01-19 | 山东临工工程机械有限公司 | Device for automatically turning over work pieces |
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| CN209480637U (en) * | 2018-12-03 | 2019-10-11 | 燕山大学 | A kind of turnover mechanism based on wheel hub process equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115196299A (en) * | 2022-08-23 | 2022-10-18 | 宝武集团马钢轨交材料科技有限公司 | Automatic conveying system and method for thermal-state wheel round billets |
| CN115196299B (en) * | 2022-08-23 | 2024-04-05 | 宝武集团马钢轨交材料科技有限公司 | Automatic conveying system and method for thermal state wheel round billets |
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| Publication number | Publication date |
|---|---|
| CN113998456B (en) | 2023-08-01 |
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