CN215508343U - Die fixing device for steel rolling - Google Patents
Die fixing device for steel rolling Download PDFInfo
- Publication number
- CN215508343U CN215508343U CN202121393912.1U CN202121393912U CN215508343U CN 215508343 U CN215508343 U CN 215508343U CN 202121393912 U CN202121393912 U CN 202121393912U CN 215508343 U CN215508343 U CN 215508343U
- Authority
- CN
- China
- Prior art keywords
- frame
- sliding
- rack
- driving
- sliding frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a mould fixing device for steel rolling relates to rolling equipment's technical field, which comprises a bod, fixedly connected with frame on the organism, sliding connection has first sliding frame and second sliding frame in the frame, it is connected with first roll to rotate on the first sliding frame, the second sliding frame is gone up to rotate and is connected with the second roll, and the work piece is worn to locate in the clearance of first roll and second roll, be equipped with the first sliding frame of drive and the gliding actuating mechanism of second sliding frame in the frame, be equipped with in the frame and prevent the gliding adjustment mechanism of first sliding frame and second sliding frame. The utility model provides an adjustment mechanism prevents that first frame and the second that slides slide in opposite directions, improves the fixed stability of first frame and the second that slides, and convenient operation reduces first roll and the second roll risk that becomes flexible and appear, improves rolling efficiency betterly.
Description
Technical Field
The application relates to the technical field of steel rolling equipment, in particular to a die fixing device for steel rolling.
Background
Steel rolling is a workpiece processing technology, and refers to a process of finally changing the thickness and width of a steel billet or a steel ingot by passing the steel billet or the steel ingot in a high-temperature state through a steel rolling die. The plasticity, strength and weldability of the rolled steel are greatly improved, and the rolled steel is widely applied to manufacturing industries such as ships, automobiles, bridges, buildings, machinery and the like. The fixing device of the die is generally used in the rolling process.
In the related art, the rolling dies are usually fixed by bolts so that the thickness and the width of the rolled steel of each rolling equipment are equal, and when the workpiece is conveyed into the rolling dies by the conveyor, the rolling dies roll the workpiece, and the thickness of the rolled workpiece is uniform.
In view of the above-mentioned related technologies, the inventor believes that when the mold fixing device is fixed by a bolt and rolls workpieces with different thicknesses, different steel rolling molds need to be replaced, and the steel rolling molds are easily and firmly fixed when being reinstalled, resulting in a risk of loosening of the steel rolling molds.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems that the steel rolling die is not firmly fixed and loosened when replaced again, the application provides a die fixing device for steel rolling.
The application provides a mould fixing device for steel rolling adopts following technical scheme:
the utility model provides a mould fixing device for steel rolling, includes the organism, fixedly connected with frame on the organism, sliding connection has first slip frame and second slip frame in the frame, rotate on the first slip frame and be connected with first roll, rotate on the second slip frame and be connected with the second roll, the work piece is worn to locate in the clearance of first roll and second roll, be equipped with the gliding actuating mechanism of drive first slip frame and second slip frame in the frame, be equipped with the gliding adjustment mechanism of prevention first slip frame and second slip frame in the frame.
By adopting the technical scheme, the driving mechanism drives the first sliding frame and the second sliding frame to slide oppositely, so that the size of a gap between the first roller and the second roller is adjusted, and the rolling thickness of the workpiece is further adjusted; the adjusting mechanism drives the first sliding frame and the second sliding frame to be prevented from sliding oppositely, the fixing stability of the first sliding frame and the second sliding frame is improved, the operation is convenient, the risk that the first roller and the second roller are loosened is reduced, and the rolling efficiency is improved well.
Optionally, the driving mechanism includes a driving gear rotatably connected with the frame, the frame is slidably connected with a first rack and a second rack, the first rack is fixedly connected with the first sliding frame, the second rack is fixedly connected with the second sliding frame, and the frame is provided with a driving assembly for driving the driving gear to rotate.
By adopting the technical scheme, the driving gear is driven by the driving assembly to rotate, the driving gear is respectively meshed with the first rack and the second rack, and the first rack and the second rack are arranged oppositely, so that the sliding directions of the first rack and the second rack are opposite, the first sliding frame and the second sliding frame are driven to slide oppositely, the labor is saved, the consistency of the sliding stroke is improved, and the sliding precision of the first sliding frame and the second sliding frame is better improved.
Optionally, the driving assembly comprises a first worm gear coaxially fixed with the driving gear, a sliding block is connected to the rack in a sliding mode, a driving worm is connected to the sliding block in a rotating mode, and a driving piece for driving the sliding block to slide is arranged on the rack.
By adopting the technical scheme, the driving worm is meshed with the first worm wheel to drive the driving gear to rotate, so that the first sliding frame and the second sliding frame are driven to slide, the operation is convenient, and the labor is saved; the driving piece drives the sliding block to slide, so that the driving worm is disengaged from the first worm wheel, and the working efficiency of the adjusting assembly is improved better.
Optionally, the driving part comprises a screw rod rotatably connected with the frame, the screw rod is in threaded connection with the sliding block, and a driving motor for driving the screw rod to rotate is arranged on the frame.
Through adopting above-mentioned technical scheme, driving motor drive lead screw rotates, and lead screw and slider threaded connection drive the slider and slide along the length direction of lead screw, and the lead screw has the auto-lock nature, improves the slip precision of slider betterly.
Optionally, the adjusting mechanism includes a ratchet wheel coaxially fixed with the driving gear, a pawl is rotatably connected to the frame, and an elastic member for driving the pawl to rotate towards the ratchet wheel is arranged on the frame.
By adopting the technical scheme, the ratchet wheel is meshed with the pawl to prevent the gear from rotating, so that the risk of the gear rotating is well reduced, and the fixing stability of the first sliding frame and the second sliding frame is improved; the elastic piece can drive the pawl to rotate towards the direction of the ratchet wheel, and labor is saved.
Optionally, the elastic element includes a pressure spring fixedly connected with the pawl, one end of the pressure spring, which is far away from the pawl, is fixedly connected with the frame, the pawl is fixedly connected with a pressure plate, and the pressure plate and the pawl are on the same rotation axis.
Through adopting above-mentioned technical scheme, the clamp plate rotates with the pawl is coaxial, forms "lever", and the clamp plate rotates towards the ratchet direction and drives the pawl and keep away from the ratchet direction and rotate for the pawl breaks away from with the ratchet, and the first sliding frame of being convenient for and the second sliding frame of sliding return are slided, are convenient for reset.
Optionally, the pressing plate is provided with a magnetic block, and the rack is provided with an electromagnet for adsorbing the magnetic block.
Through adopting above-mentioned technical scheme, the electro-magnet adsorbs the magnetic path after the circular telegram for the clamp plate rotates towards the ratchet direction, saves the manual work, improves operating personnel's operation safety.
Optionally, a second worm wheel is fixedly connected to the first roller, and the second worm wheel is meshed with the driving worm.
Through adopting above-mentioned technical scheme, initiative worm and second worm wheel meshing drive first roll and rotate, and first roll passes through the work piece and drives the second roll and rotate, and then accomplishes the rolling work of work piece, uses an initiative worm to drive first worm wheel and second worm wheel rotation respectively, saves the resource, reduction in production cost.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the driving mechanism drives the first sliding frame and the second sliding frame to slide oppositely, and adjusts the size of a gap between the first roller and the second roller, so as to adjust the rolling thickness of the workpiece; the adjusting mechanism drives the first sliding frame and the second sliding frame to be prevented from sliding oppositely, so that the fixing stability of the first sliding frame and the second sliding frame is improved, the operation is convenient, the risk of loosening of the first roller and the second roller is reduced, and the rolling efficiency is improved better;
2. the driving gear is respectively meshed with the first rack and the second rack, and the first rack and the second rack are oppositely arranged, so that the sliding directions of the first rack and the second rack are opposite, the first sliding frame and the second sliding frame are driven to slide oppositely, the labor is saved, the consistency of the sliding stroke is improved, and the sliding precision of the first sliding frame and the second sliding frame is better improved;
3. the ratchet wheel is meshed with the pawl to prevent the gear from rotating, so that the risk of the gear rotating is well reduced, and the fixing stability of the first sliding frame and the second sliding frame is improved; the elastic piece can drive the pawl to rotate towards the direction of the ratchet wheel, and labor is saved.
Drawings
Fig. 1 is a schematic structural diagram for embodying an overall structure in the embodiment of the present application.
Fig. 2 is a sectional view for embodying the internal structure of the housing in the embodiment of the present application.
Fig. 3 is an exploded view of an embodiment of the present application for embodying a drive mechanism.
Description of reference numerals: 1. a body; 11. a rotating roller; 2. a frame; 21. a first sliding frame; 22. a second sliding frame; 23. a first roll; 24. a second roll; 25. a delivery port; 26. a sliding groove; 27. a chute; 3. a workpiece; 4. a drive mechanism; 41. a driving gear; 42. a first rack; 43. a second rack; 44. a drive assembly; 441. a first worm gear; 442. a slider; 443. a drive worm; 444. a drive member; 445. adjusting the motor; 4441. a screw rod; 4442. a drive motor; 445. a second worm gear; 5. an adjustment mechanism; 51. a ratchet wheel; 52. a pawl; 53. an elastic member; 531. a pressure spring; 532. a baffle plate; 533. pressing a plate; 534. a magnetic block; 535. an electromagnet.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a die fixing device for steel rolling. Referring to fig. 1 and 2, a die fixing device for steel rolling includes a machine body 1, a machine frame 2 is installed on the machine body 1, a first sliding frame 21 and a second sliding frame 22 are slidably installed on the machine frame 2 along a vertical direction of the machine frame 2, a first roller 23 is rotatably installed on the first sliding frame 21, a second roller 24 is rotatably installed on the second sliding frame 22, the second roller 24 is located right above the first roller 23, a workpiece 3 is inserted into a gap formed by the first roller 23 and the second roller 24, a driving mechanism 4 for driving the first sliding frame 21 and the second sliding frame 22 to slide is installed on the machine frame 2, and an adjusting mechanism 5 for preventing the first sliding frame 21 and the second sliding frame 22 from sliding is installed on the machine frame 2. The driving mechanism 4 is mainly used for driving the 21 second sliding frames 22 of the first sliding frame to slide oppositely, and shortening the gap between the first roller 23 and the second roller 24, so that the rolling of workpieces 3 with different thicknesses is facilitated; the adjusting mechanism 5 is mainly used for preventing the first sliding frame 21 and the second sliding frame 22 from sliding, reducing the risk of loosening the first roller 23 and the second roller 24, and further improving the fixing stability of the first roller 23 and the second roller 24.
Referring to fig. 2 and 3, the machine body 1 has a plurality of rotating rollers 11 rotating along both ends of the machine body in the longitudinal direction thereof, and the lower surface of the workpiece 3 abuts against the surfaces of the rotating rollers 11, thereby facilitating the conveyance of the workpiece 3. The middle part of the machine body 1 is fixed with the machine frame 2 through bolts, and the machine frame 2 is provided with a conveying opening 25 for the workpiece 3 to penetrate along the length direction of the machine body 1. Two sliding grooves 26 are formed in each side wall of the frame 2 in the width direction of the machine body 1, protruding blocks used for being connected with the sliding grooves 26 in a sliding mode are welded on the first sliding frame 21 and the second sliding frame 22 respectively, the driving mechanism 4 comprises a first rack 42 fixed with the first sliding frame 21 through bolts, a second rack 43 fixed with the second sliding frame 22 through bolts, the first rack 42 and the second rack 43 are arranged in parallel with the sliding grooves 26, a driving gear 41 used for being meshed with the first rack 42 and the second rack 43 is arranged on the side wall of the frame 2 in a rotating mode, the driving gear 41 is located between the first rack 42 and the second rack 43, and a driving assembly 44 for driving the driving gear 41 to rotate is mounted on the frame 2.
The driving assembly 44 drives the driving gear 41 to rotate, the driving gear 41 is respectively meshed with the first rack 42 and the second rack 43 to drive the first rack 42 and the second rack 43 to slide oppositely, so that the first sliding frame 21 and the second sliding frame 22 are driven to slide oppositely, the gap between the first roller 23 and the second roller 24 is shortened, the rolling of the workpiece 3 with thinner thickness is facilitated, the reinstallation times of the first roller 23 and the second roller 24 is reduced, the fixing stability of the first roller 23 and the second roller 24 is improved, and the positioning precision is improved.
Referring to fig. 3, the rack 2 is provided with a sliding groove 27 along a vertical direction, the driving assembly 44 includes a slider 442 slidably connected to the sliding groove 27, a dovetail block connected to the sliding groove 27 is welded to the slider 442, the rack 2 is provided with a first worm wheel 441 coaxially fixed with the driving gear 41 in a rotating manner, the rack 2 is provided with a driving member 444 for driving the slider 442 to slide toward the first worm wheel 441, the driving member 444 includes a driving motor 4442 fixed to the rack 2 by a bolt, an output shaft of the driving motor 4442 is connected to a screw rod 4441 by a coupling, and the screw rod 4441 is in threaded connection with the slider 442. An adjusting motor 445 is fixed on the sliding block 442 through a bolt, an output shaft of the adjusting motor 445 is connected with a driving worm 443 through a coupling, the driving worm 443 is in meshing transmission with the first worm wheel 441, and in the embodiment of the application, the driving motor 4442 and the adjusting motor 445 both adopt stepping motors.
During operation, the output shaft of the driving motor 4442 rotates to drive the screw rod 4441 to rotate, the screw rod 4441 drives the slider 442 to slide towards the first worm wheel 441, the slider 442 drives the driving worm 443 to engage with the first worm wheel 441, the output shaft of the adjusting motor 445 rotates to drive the driving worm 443 to rotate, the driving worm 443 drives the first worm wheel 441 to rotate, the first worm wheel 441 drives the driving gear 41 to rotate, and then the first sliding frame 21 and the second sliding frame 22 slide towards each other, so that the operation is convenient, the labor is saved, and the workload of operators is reduced well.
Referring to fig. 3, the adjusting mechanism 5 includes a ratchet 51 coaxially fixed with the driving gear 41, a first worm wheel 441 is disposed between the driving gear 41 and the ratchet 51, and a rotating shaft is rotatably connected to a side wall of the frame 2, and an axis of the rotating shaft is parallel to an axis of the ratchet 51. One end of the rotating shaft, which is far away from the frame 2, is fixedly welded with a pawl 52 and a pressing plate 533, the pawl 52 and the pressing plate 533 can rotate with the axis of the rotating shaft as a fulcrum to form a "lever" structure, and the frame 2 is provided with an elastic piece 53 for driving the pawl 52 to rotate towards the direction of the ratchet wheel 51. The elastic part 53 comprises a baffle 532 fixed with the side wall of the frame 2 in a welding way, a pressure spring 531 is welded on the baffle 532, and one end of the pressure spring 531 far away from the baffle 532 is fixed with the pawl 52 in a welding way. A magnetic block 534 is glued on the pressing plate 533, an electromagnet 535 is fixed below the magnetic block 534 on the frame 2 through a bolt, and the electromagnet 535 can adsorb the magnetic block 534 when being electrified.
When the workpiece 3 is located between the first roller 23 and the second roller 24, the workpiece 3 has a supporting force towards the first roller 23 and the second roller 24 and away from the workpiece 3, the supporting force enables the first roller 23 and the second roller 24 to have a tendency of being away from the workpiece 3, at this time, the pawl 52 and the ratchet 51 are clamped to prevent the gear from rotating, and further the first rack 42 and the second rack 43 are prevented from sliding, so that the fixing stability of the first sliding frame 21 and the second sliding frame 22 is better improved, and further the fixing stability and the positioning accuracy of the first roller 23 and the second roller 24 are improved. When the workpieces 3 with different thicknesses are replaced, the first sliding frame 21 and the second sliding frame 22 need to be reset, the electromagnet 535 is started, the electromagnet 535 adsorbs the magnetic block 534, the pressing plate 533 rotates towards the direction close to the ratchet 51 to drive the pawl 52 to rotate towards the direction away from the ratchet 51, the pawl 52 is separated from the ratchet 51, the driving gear 41 is driven to rotate reversely at the moment, the first sliding frame 21 and the second sliding frame 22 can be reset, the operation is convenient, the labor is saved, and the production efficiency is improved better.
Referring to fig. 3, a first end key of the first roller 23 penetrating through the frame 2 is connected with a second worm wheel 445, the end surface of the second worm wheel 445 is flush with the end surface of the first worm wheel 441, the driving worm 443 is meshed with the second worm wheel 445 to drive the first roller 23 to rotate, the first roller 23 drives the second roller 24 to rotate through the workpiece 3, and the first roller 23 and the second roller 24 jointly convey the workpiece 3 along the length direction of the machine body 1, so that the operation is convenient and the operation is stable.
The implementation principle of the die fixing device for steel rolling in the embodiment of the application is as follows: when the automatic rolling machine works, an operator firstly prevents a workpiece 3 from being on the rotating roller 11, the rotating roller 11 rotates to drive the workpiece 3 to move along the length direction of the machine body 1, when the workpiece 3 moves between the first roller 23 and the second roller 24, the driving motor 4442 is started, the output shaft of the driving motor 4442 drives the screw rod 4441 to rotate, the screw rod 4441 is in threaded connection with the sliding block 442, the sliding block 442 slides towards the workpiece 3, and the sliding block 442 drives the driving worm 443 to be meshed with the first worm wheel 441. The adjusting motor 445 is started, an output shaft of the adjusting motor 445 rotates to drive the driving worm 443 to rotate, the driving worm 443 drives the first worm wheel 441 to rotate, the first worm wheel 441 drives the driving gear 41 to rotate, the driving gear 41 is respectively meshed with the first rack 42 and the second rack 43 to drive the first sliding frame 21 and the second sliding frame 22 to slide oppositely, and further drive the first roller 23 and the second roller 24 to slide oppositely, so that a gap between the first roller 23 and the second roller 24 is shortened, and the workpiece 3 is clamped tightly. The ratchet 51 is clamped with the ratchet 51 to prevent the first roller 23 and the second roller 24 from being separated from the workpiece 3. Then the output shaft of the driving motor 4442 rotates reversely to drive the screw 4441 to rotate reversely, the slider 442 slides towards the direction far away from the workpiece 3, the slider 442 drives the driving worm 443 to be meshed with the second worm wheel 445, the driving worm 443 rotates to drive the second worm wheel 445 to rotate, and further the first roller 23 and the second roller 24 are driven to rotate, finally the rolling work of the workpiece 3 is completed, the operation is convenient, the fixing stability of the first roller 23 and the second roller 24 is improved well, and the production efficiency is improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a mould fixing device for steel rolling, includes organism (1), fixedly connected with frame (2), its characterized in that on organism (1): frame (2) go up sliding connection and have first sliding frame (21) and second sliding frame (22), it is connected with first roll (23) to rotate on first sliding frame (21), it is connected with second roll (24) to rotate on second sliding frame (22), and work piece (3) are worn to locate in the clearance of first roll (23) and second roll (24), be equipped with the first sliding frame of drive (21) and the gliding actuating mechanism (4) of second sliding frame (22) on frame (2), be equipped with on frame (2) and prevent the gliding adjustment mechanism (5) of first sliding frame (21) and second sliding frame (22).
2. The die holding device for steel rolling according to claim 1, wherein: actuating mechanism (4) include with frame (2) rotation be connected driving gear (41), sliding connection has first rack (42) and second rack (43) on frame (2), first rack (42) and first sliding frame (21) fixed connection, second rack (43) and second sliding frame (22) fixed connection, be equipped with drive driving gear (41) pivoted drive assembly (44) on frame (2).
3. The die holding device for steel rolling according to claim 2, wherein: the driving assembly (44) comprises a first worm gear (441) coaxially fixed with the driving gear (41), a sliding block (442) is connected onto the machine frame (2) in a sliding manner, a driving worm (443) is connected onto the sliding block (442) in a rotating manner, and a driving piece (444) which drives the sliding block (442) to slide is arranged on the machine frame (2).
4. The die holding device for steel rolling according to claim 3, wherein: the driving piece (444) comprises a screw rod (4441) rotatably connected with the rack (2), the screw rod (4441) is in threaded connection with the sliding block (442), and a driving motor (4442) for driving the screw rod (4441) to rotate is arranged on the rack (2).
5. The die holding device for steel rolling according to claim 1, wherein: the adjusting mechanism (5) comprises a ratchet wheel (51) coaxially fixed with the driving gear (41), a pawl (52) is connected to the rack (2) in a rotating mode, and an elastic piece (53) for driving the pawl (52) to rotate towards the direction of the ratchet wheel (51) is arranged on the rack (2).
6. The die holding device for steel rolling according to claim 5, wherein: the elastic piece (53) comprises a pressure spring (531) fixedly connected with the pawl (52), one end, far away from the pawl (52), of the pressure spring (531) is fixedly connected with the rack (2), a pressure plate (533) is fixedly connected to the pawl (52), and the pressure plate (533) and the pawl (52) are on the same rotating axis.
7. The die holding device for steel rolling according to claim 6, wherein: the pressing plate (533) is provided with a magnetic block (534), and the rack (2) is provided with an electromagnet (535) used for adsorbing the magnetic block (534).
8. The die holding device for steel rolling according to claim 3, wherein: and a second worm wheel (445) is fixedly connected to the first roller (23), and the second worm wheel (445) is meshed with the driving worm (443).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121393912.1U CN215508343U (en) | 2021-06-21 | 2021-06-21 | Die fixing device for steel rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121393912.1U CN215508343U (en) | 2021-06-21 | 2021-06-21 | Die fixing device for steel rolling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215508343U true CN215508343U (en) | 2022-01-14 |
Family
ID=79809600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121393912.1U Active CN215508343U (en) | 2021-06-21 | 2021-06-21 | Die fixing device for steel rolling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215508343U (en) |
-
2021
- 2021-06-21 CN CN202121393912.1U patent/CN215508343U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110756894B (en) | Section bar cutting device | |
| CN103350431B (en) | Thin-plate blanking device | |
| CN215508343U (en) | Die fixing device for steel rolling | |
| CN215356386U (en) | Cutting device is used in aluminium alloy production | |
| CN215393892U (en) | Direction-adjustable mechanical clamp for machining | |
| CN216297572U (en) | Transverse adjusting mechanism of bending machine | |
| CN112849918B (en) | Continuous flexible gradual shaping clamping and conveying device for plates | |
| CN114524385A (en) | Lifting platform material pushing box device for improving production efficiency of power battery raw materials | |
| CN213127812U (en) | Novel noodle making machine | |
| EP0321602B1 (en) | Gripper feeding device with pneumatically or hydraulically operated crank drives | |
| CN113714409A (en) | Stamping manipulator | |
| CN217943676U (en) | Automatic edge bonding machine and balance wheel type belt pressing mechanism thereof | |
| CN108044378B (en) | Device for processing circular arc-shaped part by using flat steel | |
| CN207657236U (en) | A kind of container roof plate special hydraulic press | |
| CN219188839U (en) | Clamping assembly for hydraulic shearing machine | |
| CN2644123Y (en) | Cutter-edge regulation equipment for trip shaft free rotary cutter whirling machine of log | |
| CN216227027U (en) | Special processingequipment of water heater front side board | |
| CN218424785U (en) | Prevent rolling mill structure of panel skew | |
| CN218135272U (en) | High-precision hydraulic gate type plate shearing machine | |
| CN218424809U (en) | High-efficient feed arrangement of cold rolling mill | |
| CN213793611U (en) | Aluminum alloy window rail equipment of bending | |
| CN219043638U (en) | Cylinder lathe fixing device for large forging press | |
| CN219616845U (en) | Cutting device for aluminum alloy processing | |
| CN218785088U (en) | Steel plate leveling device | |
| CN212761784U (en) | Wear-resisting plate welding mistake proofing device on cooling bed equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |