CN112495690A - Single-roller coating machine - Google Patents
Single-roller coating machine Download PDFInfo
- Publication number
- CN112495690A CN112495690A CN202011529083.5A CN202011529083A CN112495690A CN 112495690 A CN112495690 A CN 112495690A CN 202011529083 A CN202011529083 A CN 202011529083A CN 112495690 A CN112495690 A CN 112495690A
- Authority
- CN
- China
- Prior art keywords
- roller
- frame
- coating
- coating roller
- side 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
Landscapes
- Coating Apparatus (AREA)
Abstract
The invention relates to a single-roller coating machine which comprises a rack, an upper coating roller, a lower coating roller, an upper roller frame, an upper lifting mechanism, a lower roller frame and a lower lifting mechanism, wherein the rack is fixedly arranged on a workshop platform, and the cross section of the rack, which is vertical to the running direction of strip steel, is in a door shape or a rectangle shape; the bearing seats of the upper coating roller and the bearing seats of the lower coating roller are respectively arranged on the corresponding roller frames in a sliding manner, and the sliding direction is parallel to the axial direction of the coating roller body; the transmission side frame body and/or the operation side frame body of the frame are/is provided with a roller changing channel for the upper coating roller and the lower coating roller to pass through. The frame is fixedly arranged on the workshop platform, and the portal or rectangular cross section is adopted, so that the structural rigidity and stability of the whole equipment are ensured, and the uniformity of a coating can be improved; the upper coating roller and the lower coating roller are designed to be slidably mounted on the corresponding roller frames, other parts do not need to be moved in the roller changing operation process, the operation is convenient, the time and the labor are saved, the maintenance efficiency can be obviously improved, and the maintenance cost is reduced.
Description
Technical Field
The invention belongs to the technical field of metallurgical equipment, and particularly relates to a single-roller coating machine.
Background
At present, in silicon steel production, a single-roller coating machine is generally used for coating magnesium oxide coating liquid and insulating layer coating liquid with low viscosity on silicon steel, the structure of the single-roller coating machine is basically spray extrusion, namely, a non-transmission coating roller is respectively arranged on the upper side and the lower side of strip steel, the two coating rollers are grooved rollers, excessive coating liquid is sprayed at the inlets of the upper coating roller, the lower coating roller and the strip steel, and the film thickness of a coating is adjusted by adjusting the mutual extrusion force between the upper coating roller and the lower coating roller.
The single-roller coating machine is mainly applied at present, a rack of the single-roller coating machine is a C-shaped frame and a movable vehicle body, an opening of the C-shaped frame is convenient for entering and exiting strip steel, namely the single-roller coating machine is provided with two working positions, one working position is the center of the machine set, the other working position is an off-line roller changing position, an upper coating roller, a lower coating roller, a coating roller lifting mechanism, a coating liquid supplying and recovering mechanism and the like are arranged on the C-shaped frame, and the whole equipment can be translated from the working positions to the roller changing positions in the direction perpendicular to the center line of the machine set. When the roller is changed, the whole equipment is required to be moved out of the line together, the old upper coating roller/lower coating roller is removed from the rack, a new upper coating roller/lower coating roller is installed, then the whole equipment enters a working position together, the position adjustment and the pressure adjustment of the coating roller are carried out after the vehicle body is positioned and locked, and then the production can be continued. The roll changing process has more moving parts and longer roll changing time, has certain influence on production rhythm and cost, and can cause coating liquid to scatter around a coating machine to cause certain environmental pollution; moreover, the rigidity of the opening of the C-shaped frame designed for entering and exiting the strip steel is poor, the rigidity of the coating roller is indirectly influenced, the uniformity of coatings on the operation side and the transmission side is influenced, and the moving-in and moving-out of the C-shaped frame can also indirectly influence the installation positioning precision of the upper coating roller and the lower coating roller, and the precision of the coating thickness is influenced.
Disclosure of Invention
The present invention is directed to a single roll coater that addresses at least some of the deficiencies of the prior art.
The invention relates to a single-roller coating machine which comprises a rack, an upper coating roller and a lower coating roller, wherein the rack is fixedly arranged on a workshop platform, and the section of the rack, which is vertical to the running direction of strip steel, is in a door shape or a rectangular shape;
the coating machine also comprises an upper roller frame, an upper lifting mechanism arranged at the top of the machine frame and used for driving the upper roller frame to lift, a lower roller frame and a lower lifting mechanism arranged at the bottom of the machine frame and used for driving the lower roller frame to lift;
the bearing seat of the upper coating roller is arranged on the upper roller frame in a sliding mode, and the sliding direction of the bearing seat is parallel to the axial direction of the upper coating roller body; the bearing seat of the lower coating roller is arranged on the lower roller frame in a sliding manner, and the sliding direction of the bearing seat is parallel to the axial direction of the roller body of the lower coating roller;
and a transmission side frame body and/or an operation side frame body of the frame are/is provided with a roller changing channel for the upper coating roller and the lower coating roller to pass through.
In one embodiment, the transmission-side frame body and the operation-side frame body are each a gate frame.
As one embodiment, the transmission side frame body and the operation side frame body are provided with upper guide units for guiding the lifting movement of the upper roll frame; and/or the transmission side frame body and the operation side frame body are provided with lower guide units for guiding the lifting motion of the lower roller frame.
As one embodiment, the upper roll frame is provided with a first horizontal guiding unit for guiding the sliding motion of the upper coating roll; and/or a second horizontal guide unit for guiding the sliding motion of the lower coating roller is arranged on the lower roller frame.
In one embodiment, the upper roller frame and the lower roller frame are respectively provided with a coating roller locking mechanism for limiting the sliding of the corresponding coating roller.
As one of the implementation modes, the coating roller locking mechanism comprises a locking clamping plate hinged on the corresponding roller frame, and a limiting groove matched with the locking clamping plate is arranged at the shaft end of the corresponding coating roller shaft or the corresponding coating roller bearing seat.
In one embodiment, a pressure detecting unit is installed between the output end of the ascending and descending mechanism and the upper roll frame.
In one embodiment, a buffer unit is interposed between the output end of the lower lifting mechanism and the lower roller frame.
As one embodiment, the buffer unit includes a plurality of buffer springs, and an axial direction of each of the buffer springs is parallel to a vertical direction.
In one embodiment, a coating liquid collecting tank is arranged below the lower roller frame, and the coating liquid collecting tank is provided with a translation guide rail, and the guide direction of the translation guide rail is parallel to the running direction of the strip steel and extends out of the machine frame.
The invention has at least the following beneficial effects:
the single-roller coating machine provided by the invention has the advantages that the rack is fixedly arranged on the workshop platform, and the portal or rectangular cross section is adopted, so that the structural rigidity and stability of the whole equipment are ensured, the rigidity of the coating roller during working is ensured, and the uniformity of a coating layer can be improved. The upper coating roller and the lower coating roller are designed to be slidably mounted on the corresponding roller frames, when the roller is replaced, only the old roller needs to be horizontally pulled out and the new roller needs to be horizontally pushed in, other parts do not need to be moved in the whole process, the operation is convenient and fast, time and labor are saved, the maintenance efficiency can be obviously improved, and the maintenance cost can be reduced; and the pollution of the spraying liquid to the surrounding environment is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a single roll coater according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
fig. 3 is a cross-sectional view taken along B-B of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 3, an embodiment of the present invention provides a single-roll coating machine, including a frame 1, an upper coating roll 22 and a lower coating roll 32, further including an upper roll frame 21, an upper lifting mechanism 23 disposed at the top of the frame 1 and used for driving the upper roll frame 21 to lift, a lower roll frame 31, and a lower lifting mechanism 33 disposed at the bottom of the frame 1 and used for driving the lower roll frame 31 to lift; the bearing seat of the upper coating roller 22 is arranged on the upper roller frame 21 in a sliding mode, and the sliding direction of the bearing seat is parallel to the axial direction of the upper coating roller body; the bearing seat of the lower coating roller 32 is arranged on the lower roller frame 31 in a sliding manner, and the sliding direction is parallel to the axial direction of the lower coating roller body 321; the transmission side frame body 11 and/or the operation side frame body 12 of the frame 1 are/is provided with a roller changing channel for the upper coating roller 22 and the lower coating roller 32 to pass through.
The frame 1 is fixedly arranged on a workshop platform, and the section of the frame, which is vertical to the running direction of strip steel, is door-shaped or rectangular, so that the frame can be understood as follows: when the frame 1 is not provided with a bottom plate, the frame is in a door shape, and the frame bodies (the transmission side frame body 11 and the operation side frame body 12) at two sides of the frame 1 are directly arranged on a workshop platform; when the frame 1 is provided with a bottom plate, the frame is rectangular, the bottom plate is arranged on a workshop platform, and the transmission side frame body 11 and the operation side frame body 12 of the frame 1 are supported on the bottom plate. The strip passes between the transmission-side frame body 11 and the operation-side frame body 12 of the machine frame 1. The transmission side frame body 11 and the operation side frame body 12 are connected through the top plate, and the structural strength and the working stability of the frame 1 can be guaranteed.
In one embodiment, as shown in fig. 1, the transmission side frame 11 and the operation side frame 12 are both door-shaped frames, and it is understood that the door-shaped frames are perpendicular to the axial direction of the upper coating roller body/the axial direction of the lower coating roller body, and the spatial area defined by the door-shaped frames can be used as the inlet and outlet of the upper coating roller 22 and the lower coating roller 32, so as to form the roller changing channel; at the time of roll change, the old/new roll passes through the door of the operation-side housing 12, that is, between the two door posts of the operation-side housing 12. The portal frame can ensure the structural strength of the frame body, simultaneously ensure enough space required by operations such as roll changing and the like, facilitate the roll changing operation, and the upper coating roll 22 and the lower coating roll 32 can smoothly pass through the portal frame. The transmission side frame body 11 also adopts a door-shaped frame, so that more maintenance space is provided for the coating machine, for example, more movable spare space is provided for an old roller/a new roller during roller changing, on the other hand, the production process and the equipment condition can be observed more visually by workers, and the connection between the transmission side equipment and the component equipment in the coating machine, such as the connection between the upper lifting mechanism 23, the lower lifting mechanism 33, the coating liquid nozzle 4 and the like and external equipment, is more facilitated.
The upper lifting mechanism 23 and the lower lifting mechanism 33 can be conventional lifting driving devices, such as a hydraulic cylinder, an air cylinder, a screw lifter, a winch, and the like, and the specific structure thereof is not described herein. Preferably, as shown in fig. 1 and 3, the transmission-side frame body 11 and the operation-side frame body 12 are each provided with an upper guide unit 51 for guiding the elevating movement of the upper roller frame 21; and/or the transmission side frame body 11 and the operation side frame body 12 are provided with lower guide units 52 for guiding the lifting movement of the lower roller frame 31. By providing the guide unit, the stability and reliability of the elevating movement of the upper and lower roll frames 21 and 31 can be improved, thereby improving the coating quality. The upper guide unit 51 and the lower guide unit 52 may be of a conventional slider-rail type guide structure, or may be of a roller-groove rail type guide structure.
As for the above-mentioned transmission side frame body 11 and operation side frame body 12 both having a door-shaped frame structure, as shown in fig. 1, it is preferable that the sliding rails/grooved rails of the upper guide unit 51 and the lower guide unit 52 are disposed at the inner edges of the doorposts, that is, two doorposts of the transmission side frame body 11 are respectively provided with a set of rails, two doorposts of the operation side frame body 12 are respectively provided with a set of rails, and two sets of rails of each side frame body are oppositely disposed; taking a slide block-slide rail matching type guide structure as an example, the sliding surface of the slide block is parallel to the vertical direction and perpendicular to the axial direction of the coating roller body 221; taking the roller-grooved rail-fitted guide structure as an example, the axial direction of the roller is parallel to the axial direction of the applicator roller body 221. Based on the structure, the equipment layout of the coating machine is compact, the volume and the occupied space of the machine frame 1 can be obviously reduced, and the lifting motion of the upper roller frame 21 and the lower roller frame 31 is more stable based on the limitation of door-shaped frames at two sides, thereby effectively improving the quality of strip steel coating and prolonging the service life of the coating machine
Following the structure of the single-roll coating machine, as shown in fig. 1-3, the upper roll stand 21 is provided with a first horizontal guide unit for guiding the sliding motion of the upper coating roll 22; and/or a second horizontal guiding unit for guiding the sliding motion of the lower coating roller 32 is arranged on the lower roller frame 31. Similarly, the first horizontal guide unit and the second horizontal guide unit can adopt a conventional slide block-slide rail matching type guide structure, and can also adopt a roller-groove rail matching type guide structure. By arranging the horizontal guide unit, the stability of the translational motion of the upper coating roller 22 and the lower coating roller 32 can be improved, the roller changing operation is convenient, and the installation accuracy of the upper coating roller 22 and the lower coating roller 32 is ensured. Alternatively, a guide beam 6 is provided on the upper roller frame 21, and a slide rail/grooved rail or the like may be formed on the guide beam 6; the guide beam 6 preferably extends beyond the operating-side frame body 12 to facilitate the roll change operation; the guide cross member 6 can also be arranged on the lower roll stand 31.
In connection with the structure of the single-roller coating machine, the upper roller frame 21 and the lower roller frame 31 are respectively provided with a coating roller locking mechanism for limiting the sliding of the corresponding coating roller, the coating roller locking mechanism is used for locking the coating roller on the corresponding roller frame so as to ensure that the coating roller can reliably work in the normal production process, and meanwhile, the coating roller locking mechanism also needs to release the locking state so as to facilitate the roller changing operation. In one embodiment, the coating roller locking mechanism comprises a locking clamping plate 8 hinged on a corresponding roller frame, a limiting groove matched with the locking clamping plate 8 is arranged at the shaft end of the corresponding coating roller shaft or a corresponding coating roller bearing seat, the locking clamping plate 8 is clamped into the limiting groove, the coating roller can be locked on the corresponding roller frame, and the roller can be replaced after the locking clamping plate 8 leaves the limiting groove.
In an alternative embodiment, as shown in fig. 1, a pressure detection unit 24 is installed between the output end of the upper lifting mechanism 23 and the upper roller frame 21, and the pressure detection unit 24 may adopt a pressure sensor or the like; by the feedback of the pressure detecting unit 24, the force of mutual pressing between the upper coating roller body 221 and the lower coating roller body 321 can be controlled to obtain a satisfactory coating quality.
In an alternative embodiment, a buffer unit 34 is interposed between the output end of the lower lifting mechanism 33 and the lower roller frame 31; preferably, as shown in fig. 1 and 2, the buffer unit 34 includes a plurality of buffer springs, and an axial direction of each buffer spring is parallel to a vertical direction. Based on the design, the lower coating roller 32 and the strip steel are kept at relatively stable contact pressure, flexible coating liquid for the strip steel can be realized, the uniformity of the thickness of the coating of the strip steel is improved, and meanwhile, the buffer unit 34 can better absorb vibration transmitted by the lower coating roller 32, so that the strip steel and the coating rollers and the like are prevented from being damaged due to the fact that the acting force between the strip steel and the lower coating roller 32 is increased suddenly due to factors such as strip steel shape and the like.
In an alternative embodiment, the pressure detection unit 24 and the buffer unit 34 may be interchanged.
In connection with the structure of the single-roll coating machine, as shown in fig. 1-3, a coating liquid collecting tank 71 is arranged below the lower roll frame 31, the coating liquid collecting tank 71 is provided with a translation guide rail 72, and the guide direction of the translation guide rail 72 is parallel to the running direction of the strip steel and extends out of the frame 1. The masking liquid collecting tank 71 is used for collecting the masking liquid dripped in the normal production process, and the masking liquid collecting tank 71 can be moved out of the range of the rack 1 through the translation guide rail 72, so that the masking liquid collecting tank 71 is convenient to clean.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a single roll coating machine, includes frame, scribbles coating roll and lower coating roll, its characterized in that: the frame is fixedly arranged on the workshop platform, and the section of the frame, which is vertical to the running direction of the strip steel, is in a door shape or a rectangular shape;
the coating machine also comprises an upper roller frame, an upper lifting mechanism arranged at the top of the machine frame and used for driving the upper roller frame to lift, a lower roller frame and a lower lifting mechanism arranged at the bottom of the machine frame and used for driving the lower roller frame to lift;
the bearing seat of the upper coating roller is arranged on the upper roller frame in a sliding mode, and the sliding direction of the bearing seat is parallel to the axial direction of the upper coating roller body; the bearing seat of the lower coating roller is arranged on the lower roller frame in a sliding manner, and the sliding direction of the bearing seat is parallel to the axial direction of the roller body of the lower coating roller;
and a transmission side frame body and/or an operation side frame body of the frame are/is provided with a roller changing channel for the upper coating roller and the lower coating roller to pass through.
2. The single roll coater of claim 1 wherein: the transmission side frame body and the operation side frame body are both door-shaped frames.
3. A single roll coater according to claim 1 or 2 wherein: the transmission side frame body and the operation side frame body are respectively provided with an upper guide unit for guiding the lifting motion of the upper roller frame; and/or the transmission side frame body and the operation side frame body are provided with lower guide units for guiding the lifting motion of the lower roller frame.
4. The single roll coater of claim 1 wherein: the upper roller frame is provided with a first horizontal guide unit for guiding the sliding motion of the upper coating roller; and/or a second horizontal guide unit for guiding the sliding motion of the lower coating roller is arranged on the lower roller frame.
5. The single roll coater of claim 1 wherein: and coating roller locking mechanisms used for limiting the sliding of the corresponding coating rollers are arranged on the upper roller frame and the lower roller frame.
6. The single roll coater of claim 5 wherein: the coating roller locking mechanism comprises locking snap-gauge hinged on the corresponding roller frame, and a limiting groove matched with the locking snap-gauge is arranged at the shaft end of the corresponding coating roller shaft or on the corresponding coating roller bearing seat.
7. The single roll coater of claim 1 wherein: and a pressure detection unit is arranged between the output end of the lifting mechanism and the upper roller frame.
8. The single roll coater of claim 1 wherein: and a buffer unit is clamped between the output end of the lower lifting mechanism and the lower roller frame.
9. The single roll coater of claim 8 wherein: the buffer unit comprises a plurality of buffer springs, and the axial direction of each buffer spring is parallel to the vertical direction.
10. The single roll coater of claim 1 wherein: and a coating liquid collecting tank is arranged below the lower roller frame and is provided with a translation guide rail, and the guide direction of the translation guide rail is parallel to the running direction of the strip steel and extends out of the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011529083.5A CN112495690A (en) | 2020-12-22 | 2020-12-22 | Single-roller coating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011529083.5A CN112495690A (en) | 2020-12-22 | 2020-12-22 | Single-roller coating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112495690A true CN112495690A (en) | 2021-03-16 |
Family
ID=74923323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011529083.5A Pending CN112495690A (en) | 2020-12-22 | 2020-12-22 | Single-roller coating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112495690A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113262932A (en) * | 2021-04-06 | 2021-08-17 | 中国重型机械研究院股份公司 | Roller coater |
-
2020
- 2020-12-22 CN CN202011529083.5A patent/CN112495690A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113262932A (en) * | 2021-04-06 | 2021-08-17 | 中国重型机械研究院股份公司 | Roller coater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112495690A (en) | Single-roller coating machine | |
| CN214600051U (en) | Single-roller coating machine | |
| CN110479546B (en) | Two-roller coating machine adjusted by wedge | |
| CN112536181A (en) | Horizontal roller coating unit and roller changing method thereof | |
| CN104815875B (en) | Multi-functional aluminum and aluminum alloy plate full-width hydraulic leveling machine | |
| CN2796880Y (en) | Single machine frame four roller cold belt levelling machine | |
| CN109715471B (en) | Device for sealing at least one door leaf of a rail vehicle and rail vehicle | |
| CN219463802U (en) | Automatic spraying device for machining motor bearing cover | |
| CN210995001U (en) | Upper coating roller vehicle, upper coating structure and two-roller coating machine | |
| CN210995002U (en) | Upper coating roller vehicle, upper coating structure and two-roller coating machine | |
| CN217141717U (en) | Automatic rolling equipment for automobile door | |
| CN201079802Y (en) | Upper vertical eight-roller straightening machine | |
| CN105621311A (en) | Jacking mechanism | |
| CN111842481A (en) | Four-roller wire rolling mill | |
| CN216272577U (en) | Adjusting device for elevator steel wire rope | |
| CN110548643B (en) | Coating roller vehicle, upper coating structure and two-roller coating machine | |
| CN110523579B (en) | Two-roller coating machine | |
| CN105057401A (en) | Tool-die steel plate straightening machine | |
| CN214600053U (en) | Scraper device and roller coater adopting same | |
| CN106734240B (en) | Modularization sideslip slider | |
| CN214611294U (en) | Lifting swing arm roll changing device and roller coating unit | |
| CN212190608U (en) | A multistage rail mounted roll change sideslip car for levelling machine operation side | |
| CN111036682A (en) | Multi-section rail type roller-changing cross sliding vehicle for operation side of temper mill and using method thereof | |
| CN109500091B (en) | Side supporting mechanism for working roll of eighteenth roll mill, using method of side supporting mechanism and eighteenth roll mill | |
| CN113665416A (en) | Electricity changing bin and electricity changing station comprising same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |