CN220426811U - Ladle automatic cover opening device - Google Patents
Ladle automatic cover opening device Download PDFInfo
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- CN220426811U CN220426811U CN202322279673.2U CN202322279673U CN220426811U CN 220426811 U CN220426811 U CN 220426811U CN 202322279673 U CN202322279673 U CN 202322279673U CN 220426811 U CN220426811 U CN 220426811U
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- 230000007246 mechanism Effects 0.000 claims abstract description 138
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 235000001892 vitamin D2 Nutrition 0.000 claims 4
- 238000004140 cleaning Methods 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model provides an automatic ladle cover opening device which comprises a cover body hoisting mechanism, a rotary supporting device and a bolt dismounting mechanism, wherein the cover body hoisting mechanism is arranged on the rotary supporting device; the cover body hoisting mechanism is arranged above the ladle and used for hoisting and removing the cover body from the top of the ladle; the rotary supporting device is arranged on the cover body lifting mechanism and is used for rotatably connecting the bolt dismounting mechanism with the cover body lifting mechanism; the bolt disassembling mechanism is arranged at the bottom of the rotary supporting device and is used for disassembling or fastening bolts between the cover body and the ladle. The ladle automatic cover opening device has the advantages of convenient operation, flexible and reliable field application, can meet the requirements of different use fields, effectively avoids the problems of high temperature and high-altitude dangerous operation faced by dismantling the ladle, inconvenient disassembly and the like, improves the working efficiency, reduces the labor intensity of workers, realizes the automatic disassembly and assembly of bolts of the ladle, and can automatically disassemble and lift the ladle cover body in a hot state.
Description
Technical Field
The utility model relates to the field of ladle, in particular to an automatic ladle cover opening device.
Background
In the electrolytic aluminum production process, the ladle is produced by extracting aluminum liquid in an electrolytic tank into the ladle and transferring the aluminum liquid to a pouring line for further production. The inner wall of the ladle can be continuously adhered with aluminum liquid and electrolyte in the use process, so that the ladle needs to be cleaned and repaired regularly. The cleaning and repairing needs to open the cover of the ladle, namely, the connecting bolt between the ladle cover and the ladle body is detached. With the development of metallurgical industry, ladle cleaning and repairing process improvement and upgrading are carried out, the original ladle cover can not meet the requirements of cleaning and repairing processes when the ladle is opened in a cold state, and repairing is more efficient and lower in cost under the condition that residual aluminum liquid and electrolyte in the ladle are not completely solidified. However, the ladle bolt is detached in a hot state, which is time-consuming and labor-consuming and has great potential safety hazard.
The utility model patent application with the application publication number of CN107215833A specifically discloses an automatic cover opening device and a pressure container tank adopting the cover opening device, and the automatic cover opening device comprises a lifting rotary positioning rod; the lower end of the lifting rotary positioning rod is a connecting end connected with the cover body; the upper end of the lifting rotary positioning rod is provided with a driving mechanism for driving the lifting rotary positioning rod to move up and down; the lifting rotary positioning rod is provided with a swing arm mechanism for driving the lifting rotary positioning rod to rotate; the swing arm mechanism comprises a rotating arm and an air cylinder, one end of the rotating arm is fixedly connected with the lifting rotary positioning rod in the circumferential direction, and the other end of the rotating arm is hinged with the output end of the air cylinder; the cylinder body of the cylinder can be rotatably arranged. The device can automatically realize automatic uncovering, thereby reducing labor intensity and improving production efficiency, but the device does not have the capability of disassembling bolts on the cover body.
Disclosure of Invention
In order to realize that the bolts of the ladle can be automatically detached and installed and the ladle lifting cover body can be automatically detached in a hot state, the technical scheme adopted by the utility model is as follows: an automatic ladle cover opening device comprises a cover body lifting mechanism, a rotary supporting device and a bolt dismounting mechanism;
the cover body hoisting mechanism is arranged above the ladle and used for hoisting and removing the cover body from the top of the ladle;
the rotary supporting device is arranged on the cover body lifting mechanism and is used for rotatably connecting the bolt dismounting mechanism with the cover body lifting mechanism;
the bolt dismounting mechanism is arranged at the bottom of the rotary supporting device and is used for dismounting or mounting a bolt between the cover body and the ladle.
Based on the above, in order to facilitate assembly, the cover body hoisting mechanism is a cantilever hoisting mechanism, and the cantilever hoisting mechanism comprises a stand column, a rotating arm, a winch, a hoisting rope and a lifting hook;
the winch is arranged at the inner end of the rotating arm, the rotary supporting device is arranged at the outer end of the rotating arm, a through hole for the hanging rope to pass through is formed in the center of the rotary supporting device, and the lifting hook is hung under the through hole through the hanging rope.
Based on the above, in order to realize automatic rotation, the cantilever crane mechanism further comprises a first rotation driving mechanism for driving the rotating arm to rotate, and the first rotation driving mechanism is arranged between the upright post and the rotating arm.
Based on the above, in order to facilitate the adjustment of the length, the rotating arm is a telescopic rotating arm.
Based on the above, in order to remove conveniently, lid hoist mechanism is the removal portal frame, the removal portal frame includes walking landing leg, girder, hoist engine, lifting rope, lifting hook, the hoist engine with slewing bearing device sets up on the girder, slewing bearing device center is provided with the confession the through-hole that the lifting rope passed through, the lifting hook hangs through the lifting rope under the through-hole.
Based on the above, the rotary supporting device comprises a rotary supporting turntable, a second rotary driving mechanism, a rotary positioning mechanism and a rotary arm for fixing the bolt dismounting mechanism;
the outer ring of the rotary support turntable is connected to the bottom of the outer end of the cover body lifting mechanism through a fixed flange, the inner ring of the rotary support turntable is connected with the rotary arm, and the second rotary driving mechanism is meshed with the inner ring of the rotary support turntable for transmission.
Based on the above, the rotary support device comprises at least one rotary arm, the center of the rotary arm is provided with the through hole, and one end or two ends of the rotary arm are respectively provided with the bolt dismounting mechanism.
Based on the above, in order to facilitate the adjustment of the length, the swivel arm is a telescopic swivel arm.
Based on the above, the bolt dismounting mechanism comprises a supporting plate for connecting the rotary supporting device, and a sleeve rotary driving mechanism, a power connecting rod and a square telescopic rod are arranged on the supporting plate;
the top of power connecting rod with sleeve rotary driving mechanism transmission connection, square telescopic link's bottom is provided with the sleeve that is used for the card to establish the bolt, square telescopic link telescopic setting is in the bottom of power connecting rod.
Based on the above, the bolt dismounting mechanism further comprises a power telescopic mechanism, wherein the power telescopic mechanism, the power connecting rod and the square telescopic rod are vertically arranged on the supporting plate;
the bottom of power connecting rod has been seted up and has been held square hole of square telescopic link, square telescopic link's top sets up square downthehole, power telescopic machanism sets up one side of power connecting rod, power telescopic machanism's flexible end pass through the connecting block with square telescopic link linkage is connected.
Based on the above, in order to be convenient for ladle location, this automatic device of uncapping of ladle still includes the ladle supporting locating rack that is used for the location ladle position, the ladle supporting locating rack sets up lid hoist and mount mechanism's below, be provided with the constant head tank on the ladle supporting locating rack, the periphery of constant head tank is provided with the locating piece.
Based on the above, in order to facilitate positioning, the bolt disassembling mechanism is further provided with a detecting element for sensing the stroke of the bolt disassembling mechanism.
Compared with the prior art, the ladle automatic cover opening device provided by the utility model has the substantial characteristics and improvements, and particularly, the ladle automatic cover opening device provided by the utility model can realize automatic alignment of bolts through the bolt dismounting mechanism, all the bolts are loosened to realize separation of a ladle cover and a ladle body, and then the ladle cover is lifted to a set position through the cover body lifting mechanism, so that the cover dismounting action is completed. At the moment, the ladle can be cleaned and repaired, after cleaning and repairing are finished, the ladle cover is lifted to the upper part of the ladle body through the lifting device, the relative positions of the ladle cover and the ladle body are not changed, the alignment of the ladle cover and the ladle body and the alignment of the bolt notch can be realized, after the bolt is aligned with the notch on the cover body, the bolt disassembling mechanism reversely rotates to screw the bolt and stop rotating until all the bolts are screwed, the ladle is rotated and moved to a set position, and the ladle automatic cover opening cleaning and repairing work is completely finished.
Therefore, the ladle automatic cover opening device has the advantages of convenient operation, flexible and reliable field application, can meet the requirements of different use fields, effectively avoids the problems of high temperature and high-altitude dangerous operation faced by dismantling the ladle, inconvenient dismantling and the like, improves the working efficiency, reduces the labor intensity of workers, realizes the automatic dismantling and installation of bolts of the ladle, and can automatically dismantle the ladle lifting cover body in a hot state.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the ladle automatic cover opening device provided in embodiment 1 of the present utility model.
Fig. 2 is a schematic diagram of a working state of the ladle automatic cover opening device provided in embodiment 1 of the present utility model.
Fig. 3 is a schematic structural view of a bolt disassembling mechanism in the ladle automatic cover opening device provided by the utility model.
Fig. 4 is a schematic structural diagram of a ladle automatic cover opening device provided in embodiment 5 of the present utility model.
Fig. 5 is a schematic structural diagram of a ladle automatic cover opening device provided in embodiment 6 of the present utility model.
In the figure: 1. a bolt dismounting mechanism; 2. a first swing drive mechanism; 3. a hoist; 4. a rotating arm; 5. a cantilever crane mechanism; 6. a slewing support device; 7. a second swing driving mechanism; 8. a lifting hook; 9. a support plate; 10. ladle; 11. a cover body; 12. a rotary arm; 13. a positioning block; 14. ladle supporting and positioning frame; 15. a sleeve; 16. a power telescopic mechanism; 17. a sleeve rotation driving mechanism; 18. a fixing plate; 19. a power connecting rod; 20. square telescopic rod; 21. a connecting block; 22. and (5) moving the portal frame.
Detailed Description
The technical scheme of the utility model is further described in detail through the following specific embodiments.
Example 1
The embodiment provides an automatic ladle cover opening device, which comprises a cover body lifting mechanism, a rotary supporting device 6 and a bolt dismounting mechanism 1 as shown in fig. 1 and 2.
The lid lifting mechanism is disposed above the ladle 10 for lifting and removing the lid 11 from the top of the ladle.
The rotary supporting device 6 is arranged on the cover body lifting mechanism and is used for rotatably connecting the bolt dismounting mechanism 1 with the cover body lifting mechanism.
The bolt disassembling mechanism 1 is arranged at the bottom of the rotary supporting device 6 and is used for disassembling or fastening bolts between the cover body and the ladle.
In this embodiment, the cover lifting mechanism is a cantilever lifting mechanism 5. The cantilever crane mechanism 5 comprises an upright post, a rotating arm 4, a winch 3, a lifting rope and a lifting hook 8. The hoist 3 is provided at an inner end of the rotary arm 4. The rotary supporting device 6 is arranged at the outer end of the rotary arm 4, a through hole for the hanging rope to pass through is formed in the center of the rotary supporting device 6, and the hanging hook is hung under the through hole through the hanging rope.
Specifically, the slewing bearing 6 includes a slewing bearing turntable, a second slewing drive mechanism 7, a rotational positioning mechanism, and a slewing arm 12 for fixing the bolt-removing mechanism. In this embodiment, the rotary positioning mechanism is an encoder.
The outer ring of the rotary support turntable is connected to the bottom of the outer end of the cover body lifting mechanism through a fixed flange, the inner ring of the rotary support turntable is connected with the rotary arm 12, and the second rotary driving mechanism 17 is meshed with the inner ring of the rotary support turntable for transmission.
In this embodiment, the rotary support device includes one rotary arm, the center of the rotary arm is provided with the through hole, and both ends of the rotary arm are provided with the bolt dismounting mechanism.
Specifically, as shown in fig. 3, the bolt disassembling mechanism comprises a supporting plate 9 and a fixing plate 18 for connecting the slewing supporting device, and a sleeve rotary driving mechanism 17, a power connecting rod 19 and a square telescopic rod 20 are arranged on the supporting plate 9. In this embodiment, the sleeve rotation driving mechanism 17 employs a servo motor.
The top end of the power connecting rod 19 is in transmission connection with the sleeve rotary driving mechanism 17. The bottom of square telescopic link 20 is provided with the sleeve 15 that is used for the card to establish the bolt, square telescopic link 20 telescopic link is in the bottom of power connecting rod 19.
Specifically, the bolt dismounting mechanism further comprises a power telescopic mechanism 16, wherein the power telescopic mechanism, the power connecting rod and the square telescopic rod are vertically arranged on the supporting plate. In this embodiment, the power telescopic mechanism may be an air cylinder, an electric push rod, or the like.
The bottom of the power connecting rod 19 is provided with a square hole for accommodating the square telescopic rod, and the top end of the square telescopic rod is arranged in the square hole. The power telescopic mechanism is arranged on one side of the power connecting rod, and the telescopic end of the power telescopic mechanism is connected with the square telescopic rod in a linkage manner through a connecting block 21.
Specifically, a cantilever crane flange is mounted on the head of the cantilever crane mechanism 5 for fixing the slewing bearing. The rotary supporting device comprises a rotary supporting turntable, a second rotary driving mechanism, an encoder and a rotary arm. The outer ring of the rotary supporting turntable is fixed on the cantilever crane flange, the inner ring is connected with the rotary arm, and a round hole is formed in the center of the rotary arm and used for a steel wire rope of the winch connecting with the lifting hook to pass through. Wherein the second swing driving mechanism 7 adopts a conventional swing mechanism.
The sleeve is internally provided with an inner conical surface, and the central part of the sleeve is provided with a groove which is in a shape corresponding to the bolt.
Example 2
The embodiment provides an automatic ladle uncovering device, and the specific structure is different from embodiment 1 in that: in this embodiment, in order to realize automatic rotation, the cantilever crane mechanism further includes a first rotation driving mechanism 2 for driving the rotating arm to rotate. The first swing driving mechanism 2 is disposed between the upright post and the rotating arm. Wherein the first swing driving mechanism 2 adopts a conventional swing mechanism.
Example 3
The embodiment provides an automatic ladle uncovering device, and the specific structure is different from embodiment 1 in that: in this embodiment, in order to facilitate adjustment of the length, the rotating arm is a telescopic rotating arm.
Example 4
The embodiment provides an automatic ladle uncovering device, and the specific structure is different from embodiment 1 in that: in this embodiment, in order to facilitate the adjustment of the length, the swing arm is a telescopic swing arm.
Example 5
The embodiment provides an automatic ladle uncovering device, and the specific structure is different from embodiment 1 in that: in this embodiment, as shown in fig. 4, in order to facilitate movement, the cover lifting mechanism is a moving gantry 22. The movable portal frame comprises walking supporting legs, a main beam, a winch, a lifting rope and a lifting hook. The winch and the rotary supporting device are arranged on the main beam. The center of the rotary supporting device is provided with a through hole for the lifting rope to pass through, and the lifting hook is hung under the through hole through the lifting rope.
Example 6
The embodiment provides an automatic ladle uncovering device, and the specific structure is different from embodiment 1 in that: in this embodiment, as shown in fig. 5, to facilitate positioning of the ladle, the ladle automatic cover opening device further includes a ladle supporting positioning frame 14 for positioning the ladle. The ladle supporting and positioning frame 14 is arranged below the cover body lifting mechanism, a positioning groove is formed in the ladle supporting and positioning frame, and a positioning block 13 is arranged on the periphery of the positioning groove.
Example 7
The embodiment provides an automatic ladle uncovering device, and the specific structure is different from embodiment 1 in that: in this embodiment, for convenience in positioning, the bolt disassembling mechanism is further provided with a detecting element for sensing a stroke of the bolt disassembling mechanism. The detecting element is used for detecting the loosening state of the bolt and can be a magnetic position switch arranged on the power telescopic mechanism.
Example 8
The embodiment provides an automatic ladle uncovering device, and the specific structure is different from embodiment 1 in that: in this embodiment, the rotary support device includes a plurality of rotary arms, the center of each rotary arm is provided with the through hole, and two ends of each rotary arm are respectively provided with the bolt dismounting mechanism.
Specifically, the ladle automatic uncovering device provided by the utility model comprises the following specific movement steps:
when the device is used, the ladle is placed on the base by the external crown block according to the limit. The first rotary driving mechanism drives the rotary arm and the bolt dismounting mechanism to rotate, and the center of the lifting hook is aligned with the center of the ladle. Then, the telescopic mechanism in the bolt dismounting mechanism ejects out and drives the sleeve to descend, and the bolt is aligned and sleeved through the inner conical surface of the sleeve.
At this time, the square telescopic rod stretches out, after the feedback position of the detection element is in place, the sleeve rotary driving mechanism drives the square telescopic rod and the sleeve to rotate, the bolt is loosened for a certain number of turns, and at this time, the feedback position of the detection element is fed back, and the sleeve rotary driving mechanism stops rotating. Then the telescopic mechanism drives the sleeve and the square telescopic rod to retract. Then, the second rotary driving mechanism drives the rotary arm to rotate to the next bolt according to the set angle, and the actions are repeated until all the bolts are loosened, and the ladle cover can be separated from the ladle body. And finally, hanging the ladle cover to a set position through a cantilever hanging mechanism or a movable portal frame and a hanging hook, and completing the cover removing action. At the moment, the ladle can be cleaned and repaired.
After the cleaning and repairing are finished, the ladle cover is lifted to the upper part of the ladle body through the cantilever lifting mechanism and the lifting hook, the relative positions of the ladle cover and the ladle body are not changed, the alignment of the ladle cover and the ladle body and the alignment of the bolt notch can be realized, and after the bolt is arranged on the bolt notch, the telescopic mechanism in the bolt dismounting mechanism ejects out and drives the sleeve to descend. After the telescopic rod is lowered in place, the sleeve rotary driving mechanism drives the square telescopic rod and the sleeve to reversely rotate, the bolts are screwed up and stop rotating, then the telescopic mechanism drives the sleeve and the square telescopic rod to retract, and then the second rotary driving mechanism drives the rotary arm to rotate to the next bolt according to a set angle, and the actions are repeated until all the bolts are screwed up.
And finally, the first rotary driving mechanism drives the cantilever crane mechanism to rotate and move away to a set position, and the automatic ladle uncovering, cleaning and repairing work is completed.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present utility model and are not limiting; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.
Claims (12)
1. The utility model provides a ladle automatic uncapping device which characterized in that: the device comprises a cover body hoisting mechanism, a rotary supporting device and a bolt dismounting mechanism;
the cover body hoisting mechanism is arranged above the ladle and used for hoisting and removing the cover body from the top of the ladle;
the rotary supporting device is arranged on the cover body lifting mechanism and is used for rotatably connecting the bolt dismounting mechanism with the cover body lifting mechanism;
the bolt disassembling mechanism is arranged at the bottom of the rotary supporting device and is used for disassembling or fastening bolts between the cover body and the ladle.
2. The ladle automatic uncovering device according to claim 1, wherein: the cover body hoisting mechanism is a cantilever hoisting mechanism, and the cantilever hoisting mechanism comprises a stand column, a rotating arm, a winch, a hoisting rope and a lifting hook;
the winch is arranged at the inner end of the rotating arm, the rotary supporting device is arranged at the outer end of the rotating arm, a through hole for the hanging rope to pass through is formed in the center of the rotary supporting device, and the lifting hook is hung under the through hole through the hanging rope.
3. The ladle automatic uncovering device according to claim 2, wherein: the cantilever crane mechanism further comprises a first rotation driving mechanism for driving the rotating arm to rotate, and the first rotation driving mechanism is arranged between the upright post and the rotating arm.
4. A ladle automatic decap device according to claim 2 or 3, wherein: the rotating arm is a telescopic rotating arm.
5. The ladle automatic uncovering device according to claim 1, wherein: the cover body hoisting mechanism is a movable portal frame, the movable portal frame comprises a walking supporting leg, a main beam, a winch, a lifting rope and a lifting hook, the winch and the rotary supporting device are arranged on the main beam, a through hole for the lifting rope to pass through is formed in the center of the rotary supporting device, and the lifting hook is suspended under the through hole through the lifting rope.
6. A ladle automatic decap apparatus as claimed in claim 3, wherein: the rotary supporting device comprises a rotary supporting turntable, a second rotary driving mechanism, a rotary positioning mechanism and a rotary arm for fixing the bolt dismounting mechanism;
the outer ring of the rotary support turntable is connected to the bottom of the outer end of the cover body lifting mechanism through a fixed flange, the inner ring of the rotary support turntable is connected with the rotary arm, and the second rotary driving mechanism is meshed with the inner ring of the rotary support turntable for transmission.
7. The ladle automatic uncovering device according to claim 6, wherein: the rotary support device comprises at least one rotary arm, the center of the rotary arm is provided with the through hole, and one end or two ends of the rotary arm are respectively provided with the bolt dismounting mechanism.
8. The ladle automatic decap device according to claim 6 or 7, wherein: the rotary arm is a telescopic rotary arm.
9. The ladle automatic uncovering device according to claim 1 or 2 or 3 or 5 or 6 or 7, wherein: the bolt dismounting mechanism comprises a supporting plate used for being connected with the rotary supporting device, and a sleeve rotary driving mechanism, a power connecting rod and a square telescopic rod are arranged on the supporting plate;
the top of power connecting rod with sleeve rotary driving mechanism transmission connection, square telescopic link's bottom is provided with the sleeve that is used for the card to establish the bolt, square telescopic link telescopic setting is in the bottom of power connecting rod.
10. The ladle automatic decap device according to claim 9, wherein: the bolt dismounting mechanism further comprises a power telescopic mechanism, and the power telescopic mechanism, the power connecting rod and the square telescopic rod are vertically arranged on the supporting plate;
the bottom of power connecting rod has been seted up and has been held square hole of square telescopic link, square telescopic link's top sets up square downthehole, power telescopic machanism sets up one side of power connecting rod, power telescopic machanism's flexible end pass through the connecting block with square telescopic link linkage is connected.
11. The ladle automatic uncovering device according to claim 1, wherein: the ladle lifting device is characterized in that a ladle supporting and positioning frame for positioning the ladle is further arranged below the cover lifting mechanism, a positioning groove is formed in the ladle supporting and positioning frame, and positioning blocks are arranged on the periphery of the positioning groove.
12. The ladle automatic uncovering device according to claim 1 or 2 or 3 or 5 or 6 or 7 or 11, wherein: and the bolt dismounting mechanism is also provided with a detection element for sensing the stroke of the bolt dismounting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322279673.2U CN220426811U (en) | 2023-08-24 | 2023-08-24 | Ladle automatic cover opening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322279673.2U CN220426811U (en) | 2023-08-24 | 2023-08-24 | Ladle automatic cover opening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220426811U true CN220426811U (en) | 2024-02-02 |
Family
ID=89695435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322279673.2U Active CN220426811U (en) | 2023-08-24 | 2023-08-24 | Ladle automatic cover opening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220426811U (en) |
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2023
- 2023-08-24 CN CN202322279673.2U patent/CN220426811U/en active Active
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