CN219822897U - Feeding device for steel rolling production - Google Patents
Feeding device for steel rolling production Download PDFInfo
- Publication number
- CN219822897U CN219822897U CN202320185252.0U CN202320185252U CN219822897U CN 219822897 U CN219822897 U CN 219822897U CN 202320185252 U CN202320185252 U CN 202320185252U CN 219822897 U CN219822897 U CN 219822897U
- Authority
- CN
- China
- Prior art keywords
- plate
- fixed mounting
- storage box
- rolling production
- adsorption
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 68
- 239000010959 steel Substances 0.000 title claims abstract description 68
- 238000005096 rolling process Methods 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000001179 sorption measurement Methods 0.000 claims abstract description 45
- 238000003860 storage Methods 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000000151 deposition Methods 0.000 claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 8
- 239000010960 cold rolled steel Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Specific Conveyance Elements (AREA)
Abstract
The utility model relates to a feeding device for steel rolling production, which comprises a bottom plate, wherein a support column is fixedly arranged at the top of the bottom plate, a top plate is fixedly arranged at the top of the support column, a moving module is fixedly arranged at the bottom of the top plate, a hydraulic cylinder is fixedly arranged at the output end of the moving module, an adsorption mechanism is arranged at the output end of the hydraulic cylinder, a conveying belt is fixedly arranged at the top of the bottom plate, a storage box is arranged at the top of the bottom plate, and a finishing mechanism for finishing steel plates is arranged on the storage box. This a loading attachment for steel rolling production, arrangement mechanism can be to depositing the inside steel sheet of case and arrange in order, makes the steel sheet be located the intermediate position of depositing the case, and the staff only need adjust the position of sucking disc according to the position of the steel sheet of top, also adjusts the sucking disc to same position follow-up, has reduced the degree of difficulty that whole controlled the precision, has saved the time of extra spending, has improved material loading efficiency to possess the advantage of high-efficient material loading, made things convenient for the use.
Description
Technical Field
The utility model relates to the technical field of steel rolling production, in particular to a feeding device for steel rolling production.
Background
The press working process of changing the shape of the steel ingot between the rotating rolls is called rolling, and the purpose of rolling is the same as other press working, and the required shape can be obtained, for example: cold rolling is performed at room temperature or below the recrystallization temperature using a hot rolled coil as a raw material, and cold rolled steel sheets are produced by a cold rolling process, and in the course of processing the steel sheets, it is necessary to feed the steel sheets by means of a feeding device.
According to the technical scheme that 'through arranging a horizontal moving device and utilizing a servo motor to drive a screw rod to rotate, a first sliding block moves left and right along the screw rod, a cold-rolled steel plate on a storage box can be moved onto a conveying belt to facilitate carrying and feeding of the cold-rolled steel plate', through arranging a sucker at the bottom of an adsorption plate, air in a vacuum tank is pumped out by a vacuum pump to enable the inside of the vacuum tank to form negative pressure, and then the air in the adsorption plate and the sucker is pumped out by the vacuum tank, so that the sucker adsorbs the cold-rolled steel plate, the cold-rolled steel plate is convenient to carry, and an operator controls the operation of the whole device through arranging a control handle.
Wherein, this cold rolled steel sheet loading attachment carries out the material loading to the steel sheet before, the steel sheet stacks and deposits the incasement portion, when carrying out the material loading to the steel sheet, in order to make the steel sheet be in balanced state, the staff needs to operate control handle and adjusts the position of sucking disc, make the sucking disc adsorb the intermediate position of steel sheet, but when the steel sheet stacks neatly, the staff needs to adjust the position of sucking disc according to the position of every steel sheet, the accuracy degree of difficulty is higher in whole controlling, in order to adjust the sucking disc to suitable position, often extra spending time, the material loading efficiency has been influenced, need improve, so a loading attachment for steel rolling production is proposed.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a feeding device for steel rolling production, which has the advantages of high-efficiency feeding and the like, and solves the problems that when the steel plates are stacked irregularly, workers need to adjust the positions of suction cups according to the positions of each steel plate, the overall control accuracy is high in difficulty, and in order to adjust the suction cups to proper positions, time is often additionally spent, and the feeding efficiency is influenced.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a loading attachment for steel rolling production, includes the bottom plate, the top fixed mounting of bottom plate has the pillar, the top fixed mounting of pillar has the roof, the bottom fixed mounting of roof has the removal module, the output fixed mounting of removal module has the pneumatic cylinder, the output of pneumatic cylinder is provided with adsorption equipment, the top fixed mounting of bottom plate has the conveyer belt, the top of bottom plate is provided with deposits the case, deposit and be provided with the arrangement mechanism that is used for arranging the steel sheet on the case.
Further, adsorption equipment includes the adsorption plate, adsorption plate fixed connection is at the output of pneumatic cylinder, the adsorption plate is hollow plate, the bottom intercommunication of adsorption plate has the sucking disc, the top fixed mounting of adsorption plate has the vacuum tank, the vacuum tank intercommunication has the breathing pipe that is linked together with the adsorption plate, the top fixed mounting of adsorption plate has the vacuum pump, the air inlet intercommunication of vacuum pump has the intake pipe that is linked together with the vacuum tank, the gas outlet intercommunication of vacuum tank has the outlet duct that is linked together with the attached board.
Further, the bottom of depositing the case fixed mounting has the slider, slide way with slider assorted is seted up at the top of bottom plate, the left and right sides of depositing the case is all fixed mounting has the handle.
Further, arrangement mechanism includes the diaphragm, diaphragm fixed connection is in the inside of depositing the case, the interior bottom wall fixed mounting who deposits the case has the biax motor, the output fixed mounting of biax motor has the threaded rod of being connected with depositing the incasement wall rotation, two the screw thread opposite direction of threaded rod, the thread bush is installed to the external screw thread of threaded rod, the top fixed mounting of thread bush has the movable rod that runs through and extends to the diaphragm top, the top fixed mounting of movable rod has the arrangement board.
Further, the threaded rod is rotationally connected with the storage box through a bearing, and a threaded through hole matched with the threaded rod is formed in the threaded sleeve.
Further, the top of the transverse plate is provided with a moving hole penetrating through and extending to the bottom of the transverse plate, and the moving hole is matched with the moving range of the moving rod.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
1. this a loading attachment for steel rolling production through setting up arrangement mechanism, arrangement mechanism can be to depositing the inside steel sheet of case and arrange in order, makes the steel sheet be located the intermediate position of depositing the case, and the staff only need adjust the position of sucking disc according to the position of the steel sheet of top, also adjusts the sucking disc to same position follow-up, has reduced the degree of difficulty that the accuracy was controlled wholly, has saved the time of extra spending, has improved material loading efficiency to possess the advantage of high-efficient material loading, made things convenient for the use.
2. This a loading attachment for steel rolling production is through setting up slider and handle, and two handles are held to the staff, drive and deposit the case and carry out the back-and-forth movement, deposit the case and drive the slider and carry out rectilinear movement on the bottom plate, deposit the inside steel sheet of case and be located under the sucking disc, make the steel sheet more steady when being adsorbed by the sucking disc to possess stable absorbing advantage, made things convenient for the use.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the adsorption mechanism of the present utility model;
FIG. 3 is an enlarged view of the utility model at A in FIG. 1;
FIG. 4 is a schematic view of the connection of the storage box and the sorting mechanism of the present utility model.
In the figure: 1 bottom plate, 2 pillar, 3 roof, 4 movable mould group, 5 pneumatic cylinder, 6 adsorption mechanism, 61 adsorption plate, 62 sucking disc, 63 vacuum vessel, 64 breathing pipe, 65 vacuum pump, 66 intake pipe, 67 outlet duct, 7 conveyer belt, 8 storage case, 81 slider, 82 handle, 9 arrangement mechanism, 91 diaphragm, 92 biax motor, 93 threaded rod, 94 thread bush, 95 movable rod, 96 arrangement board.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, a feeding device for steel rolling production in this embodiment includes a bottom plate 1, a pillar 2 is fixedly installed at the top of the bottom plate 1, a top plate 3 is fixedly installed at the top of the pillar 2, a moving module 4 is fixedly installed at the bottom of the top plate 3, a hydraulic cylinder 5 is fixedly installed at the output end of the moving module 4, an adsorption mechanism 6 is arranged at the output end of the hydraulic cylinder 5, a conveying belt 7 is fixedly installed at the top of the bottom plate 1, a storage box 8 is arranged at the top of the bottom plate 1, and a finishing mechanism 9 for finishing steel plates is arranged on the storage box 8.
Specifically, the staff puts into inside along depositing case 8 inner wall front side or depositing case 8 inside rear side earlier, keep steel sheet one side and deposit case 8 inner wall laminating mutually, arrangement mechanism 9 can be to depositing the inside steel sheet of case 8 and arrange in order, make the steel sheet be located the intermediate position of depositing case 8, remove module 4 and drive pneumatic cylinder 5 and adsorption equipment 6 and remove to the top of steel sheet, pneumatic cylinder 5 drives adsorption equipment 6 and removes downwards, after adsorption equipment 6 adsorbs the steel sheet of top, pneumatic cylinder 5 drives the steel sheet and upwards removes, remove module 4 and drive pneumatic cylinder 5 and adsorption equipment 6 and remove to the top of conveyer belt 7, pneumatic cylinder 5 drives the steel sheet and removes and close adsorption equipment 6, conveyer belt 7 transmits the steel sheet, the staff only need adjust adsorption equipment 6's position according to the position of the steel sheet of top, follow-up also with adsorption equipment 6 adjust to same position, the degree of difficulty of whole controlling the precision, the time of extra spending has been saved, feeding efficiency has been improved.
In addition, the electrical components are electrically connected with the controller and the power supply, the control mode of the utility model is controlled by the controller, the control circuit of the controller can be realized by simple programming of the person skilled in the art, the supply of the power supply is also common knowledge in the art, and the utility model is mainly used for protecting the mechanical device, so the utility model does not explain the control mode and the circuit connection in detail.
In this embodiment, the adsorption mechanism 6 includes an adsorption plate 61, the adsorption plate 61 is fixedly connected to the output end of the hydraulic cylinder 5, the adsorption plate 61 is a hollow plate, the bottom of the adsorption plate 61 is communicated with a suction cup 62, the top of the adsorption plate 61 is fixedly provided with a vacuum tank 63, the vacuum tank 63 is communicated with an air suction pipe 64 communicated with the adsorption plate 61, the top of the adsorption plate 61 is fixedly provided with a vacuum pump 65, an air inlet of the vacuum pump 65 is communicated with an air inlet pipe 66 communicated with the vacuum tank 63, and an air outlet of the vacuum tank 63 is communicated with an air outlet pipe 67 communicated with the auxiliary plate 61.
Specifically, by turning on the vacuum pump 65, the vacuum pump 65 generates negative pressure in the vacuum tank 63 through the air intake pipe 66, and the suction pipe 64 sucks air in the suction plate 61 and the suction cup 62, thereby sucking the steel plate by the suction cup 62.
In this embodiment, a sliding block 81 is fixedly installed at the bottom of the storage box 8, a sliding groove matched with the sliding block 81 is formed at the top of the bottom plate 1, and handles 82 are fixedly installed at the left and right sides of the storage box 8.
Specifically, the staff holds two handles 82 and drives the storage box 8 to move forwards and backwards, the storage box 8 drives the sliding block 81 to move linearly on the bottom plate 1, and the steel plate inside the storage box 8 is located under the sucker 62, so that the steel plate is more stable when being absorbed by the sucker 62.
In this embodiment, the arrangement mechanism 9 includes a diaphragm 91, the diaphragm 91 is fixedly connected in the inside of depositing the case 8, there is a biax motor 92 in the interior bottom wall fixed mounting of depositing the case 8, the output fixed mounting of biax motor 92 has the threaded rod 93 that rotates with the inner wall of depositing the case 8 to be connected, the screw thread opposite direction of two threaded rods 93, threaded sleeve 94 is installed to the external screw thread of threaded rod 93, the top fixed mounting of threaded sleeve 94 has the movable rod 95 that runs through and extends to diaphragm 91 top, the top fixed mounting of movable rod 95 has arrangement board 96.
Specifically, by turning on the biaxial motor 92, the biaxial motor 92 drives the two threaded rods 93 to rotate, the two threaded rods 93 drive the two threaded sleeves 94 to move relatively, the two threaded sleeves 94 drive the two moving rods 95 and the two sorting plates 96 to move relatively, and the two sorting plates 96 sort the stacked steel plates, so that the steel plates are located at the middle position of the storage box 8.
In this embodiment, the threaded rod 93 is rotatably connected to the storage box 8 through a bearing, and a threaded through hole matching with the threaded rod 93 is formed in the threaded sleeve 94.
Specifically, the two threaded rods 93 are in a horizontal state, and the two threaded sleeves 94 can move relatively or reversely.
In this embodiment, a moving hole penetrating and extending to the bottom of the cross plate 91 is formed at the top of the cross plate 91, and the moving hole matches the moving range of the moving rod 95.
Specifically, the moving rod 95 moves linearly inside the moving hole, and the moving hole limits the moving range of the moving rod 95.
The working principle of the embodiment is as follows:
(1) The staff puts the steel plate into the interior along the front side of the inner wall of the storage box 8 or the rear side of the inner wall of the storage box 8, keeps one side of the steel plate attached to the inner wall of the storage box 8, drives two threaded rods 93 to rotate by starting a double-shaft motor 92, drives two threaded sleeves 94 to move relatively by the two threaded rods 93, drives two moving rods 95 and two sorting plates 96 to move relatively by the two threaded sleeves 94, sorts the stacked steel plates by the two sorting plates 96, and enables the steel plates to be located in the middle position of the storage box 8;
(2) The moving module 4 drives the hydraulic cylinder 5 and the adsorption plate 61 to move above the steel plates, the hydraulic cylinder 5 drives the adsorption plate 61 to move downwards, a worker holds two handles 82 and drives the storage box 8 to move forwards and backwards, the storage box 8 drives the sliding block 81 to move linearly on the bottom plate 1, the steel plates in the storage box 8 are positioned right below the suction disc 62, the vacuum pump 65 is started to form negative pressure in the vacuum tank 63 through the air inlet pipe 66, and then the air in the adsorption plate 61 and the suction disc 62 is pumped out by the air suction pipe 64, so that the suction disc 62 adsorbs the uppermost steel plate, the steel plate is adsorbed by the suction disc 62 more stably, the advantage of stable adsorption is achieved, and the use is facilitated;
(3) The pneumatic cylinder 5 drives the steel sheet and upwards moves, remove the module 4 and drive pneumatic cylinder 5 and adsorption plate 61 and remove to the top of transmission band 7, the pneumatic cylinder 5 drives the steel sheet and moves downwards and close vacuum pump 65, transmission band 7 transmits the steel sheet, the staff only need adjust the position of sucking disc 62 according to the position of the steel sheet that is uppermost, follow-up also adjust sucking disc 62 to same position, the degree of difficulty of whole accuracy of controlling has been reduced, the time of extra spending has been saved, the material loading efficiency has been improved, thereby possess the advantage of high-efficient material loading, and is convenient to use.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a loading attachment for steel rolling production, includes bottom plate (1), the top fixed mounting of bottom plate (1) has pillar (2), the top fixed mounting of pillar (2) has roof (3), the bottom fixed mounting of roof (3) has movable module (4), the output fixed mounting of movable module (4) has pneumatic cylinder (5), the output of pneumatic cylinder (5) is provided with adsorption equipment (6), the top fixed mounting of bottom plate (1) has conveyer belt (7), the top of bottom plate (1) is provided with deposits case (8), its characterized in that: the storage box (8) is provided with a finishing mechanism (9) for finishing the steel plates.
2. A loading attachment for steel rolling production according to claim 1, wherein: adsorption equipment (6) are including adsorption plate (61), adsorption plate (61) fixed connection is in the output of pneumatic cylinder (5), adsorption plate (61) are hollow board, the bottom intercommunication of adsorption plate (61) has sucking disc (62), the top fixed mounting of adsorption plate (61) has vacuum tank (63), vacuum tank (63) intercommunication has breathing pipe (64) that are linked together with adsorption plate (61), the top fixed mounting of adsorption plate (61) has vacuum pump (65), the air inlet intercommunication of vacuum pump (65) has intake pipe (66) that are linked together with vacuum tank (63), the gas outlet intercommunication of vacuum tank (63) has outlet duct (67) that are linked together with attaching plate (61).
3. A loading attachment for steel rolling production according to claim 1, wherein: the bottom of depositing case (8) fixed mounting has slider (81), slide way with slider (81) assorted is seted up at the top of bottom plate (1), the left and right sides of depositing case (8) all fixed mounting has handle (82).
4. A loading attachment for steel rolling production according to claim 1, wherein: the arrangement mechanism (9) comprises a transverse plate (91), the transverse plate (91) is fixedly connected to the inside of the storage box (8), a double-shaft motor (92) is fixedly arranged on the inner bottom wall of the storage box (8), a threaded rod (93) connected with the inner wall of the storage box (8) in a rotating mode is fixedly arranged at the output end of the double-shaft motor (92), the threaded directions of the threaded rods (93) are opposite, a threaded sleeve (94) is arranged on the external threads of the threaded rod (93), a movable rod (95) penetrating through and extending to the upper portion of the transverse plate (91) is fixedly arranged at the top of the threaded sleeve (94), and an arrangement plate (96) is fixedly arranged at the top of the movable rod (95).
5. The feeding device for steel rolling production according to claim 4, wherein: the threaded rod (93) is rotatably connected with the storage box (8) through a bearing, and a threaded through hole matched with the threaded rod (93) is formed in the threaded sleeve (94).
6. The feeding device for steel rolling production according to claim 4, wherein: the top of the transverse plate (91) is provided with a moving hole penetrating through and extending to the bottom of the transverse plate (91), and the moving hole is matched with the moving range of the moving rod (95).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320185252.0U CN219822897U (en) | 2023-02-02 | 2023-02-02 | Feeding device for steel rolling production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320185252.0U CN219822897U (en) | 2023-02-02 | 2023-02-02 | Feeding device for steel rolling production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219822897U true CN219822897U (en) | 2023-10-13 |
Family
ID=88273789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320185252.0U Active CN219822897U (en) | 2023-02-02 | 2023-02-02 | Feeding device for steel rolling production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219822897U (en) |
-
2023
- 2023-02-02 CN CN202320185252.0U patent/CN219822897U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106736534B (en) | Automatic charging automobile bearing pressing machine and its processing technology | |
| CN103846481B (en) | A kind of combination type machining production line for tooth bar steel billet | |
| CN101288946A (en) | Compressed air shot-blasting machine | |
| CN207788016U (en) | Laser machine feed mechanism and laser process equipment | |
| CN204122763U (en) | A kind of full-automatic cylindrical lathe | |
| CN208341560U (en) | A kind of Full-automatic punch forming machine | |
| CN209240757U (en) | A kind of plate automation machining production line | |
| CN219822897U (en) | Feeding device for steel rolling production | |
| CN208648244U (en) | A kind of air blowing material fetching mechanism | |
| CN108435869A (en) | A kind of continous way process for stamping | |
| CN209078364U (en) | A kind of loading and unloading robot device for numerically-controlled machine tool | |
| CN208840882U (en) | Economical NC machine tool automated manufacturing device | |
| CN108820418B (en) | Full-automatic adhesive tape punching and sticking machine with manipulator | |
| CN208758926U (en) | A kind of charging tray assembling device with turn over function | |
| CN110965396A (en) | Turnover type paper support production system | |
| CN114289225B (en) | Engineering construction equipment for building construction | |
| CN215713830U (en) | Sewing equipment for processing collar | |
| CN213002790U (en) | Tool for producing goods shelf of foldable transport box body | |
| CN113675478A (en) | Superspeed lithium battery lamination stacking machine | |
| CN112916405A (en) | Automatic sorting device and sorting method for metal plate plasma cutting pieces | |
| CN220444725U (en) | Automatic feeding and discharging bending equipment | |
| CN206464815U (en) | Air conditioning for automobiles airduct cutting tool | |
| CN110842262A (en) | Plate part milling equipment | |
| CN220977120U (en) | Automatic go up lens vacuum coating machine of unloading | |
| CN112977982B (en) | Conveying folding mechanism of non-woven fabrics for mask machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |