CN219924263U - Rolling and punching machine - Google Patents
Rolling and punching machine Download PDFInfo
- Publication number
- CN219924263U CN219924263U CN202321298102.7U CN202321298102U CN219924263U CN 219924263 U CN219924263 U CN 219924263U CN 202321298102 U CN202321298102 U CN 202321298102U CN 219924263 U CN219924263 U CN 219924263U
- Authority
- CN
- China
- Prior art keywords
- base wheel
- wheel
- frame
- base
- die
- 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
- 238000004080 punching Methods 0.000 title claims abstract description 41
- 238000005096 rolling process Methods 0.000 title claims abstract description 23
- 230000000712 assembly Effects 0.000 claims description 25
- 238000000429 assembly Methods 0.000 claims description 25
- 230000000149 penetrating effect Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 56
- 239000010959 steel Substances 0.000 abstract description 56
- 230000005540 biological transmission Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Landscapes
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model relates to the technical field of punching processing, and provides a rolling machine which comprises a frame, a first die wheel, a second die wheel and a driving assembly; the first die wheel comprises a first base wheel and a plurality of punches, the punches are arranged at intervals along the circumferential direction of the first base wheel, and the first base wheel is connected to the frame in a rotating way; the second die wheel comprises a second base wheel, a plurality of punching holes are formed in the second base wheel along the circumferential direction of the second base wheel, and the second base wheel is connected to the frame in a rotating way and is arranged at intervals with the first base wheel; the driving assembly drives the first base wheel and the second base wheel to rotate, and the rotation direction of the first base wheel and the second base wheel is opposite. Based on this, the punching efficiency of the strip steel can be improved.
Description
Technical Field
The utility model relates to the field of punching processing, in particular to a rolling punching machine.
Background
The photovoltaic bracket is a bracket designed for placing, installing and fixing a solar panel in a solar photovoltaic power generation system. The photovoltaic bracket is formed by rolling and forming strip steel, and in some scenes, the strip steel needs to be punched in the processing process.
In the related art, the strip steel moves along the conveying direction, and the driving piece drives the punch to punch the strip steel so as to realize continuous punching processing of the strip steel. However, when punching a strip, transportation of the strip needs to be stopped, resulting in lower punching efficiency, and thus improvement is required.
Disclosure of Invention
In order to improve the punching efficiency of strip steel, the utility model provides a rolling and punching machine.
The utility model provides a rolling machine which adopts the following technical scheme:
a rolling machine comprises a frame, a first die wheel, a second die wheel and a driving assembly; the first die wheel comprises a first base wheel and a plurality of punches, the punches are arranged at intervals along the circumferential direction of the first base wheel, and the first base wheel is connected to the frame in a rotating way; the second die wheel comprises a second base wheel, a plurality of punching holes are formed in the second base wheel along the circumferential direction of the second base wheel, and the second base wheel is connected to the frame in a rotating way and is arranged at intervals with the first base wheel; the driving assembly drives the first base wheel and the second base wheel to rotate, and the rotation direction of the first base wheel and the second base wheel is opposite.
By adopting the technical scheme, during actual working, the strip steel moves along the length direction of the frame and passes through the space between the first base wheel and the second base wheel, and the punches extend into the punching holes to realize punching of the strip steel; and the first base wheel and the second base wheel rotate in opposite directions so as to facilitate the transportation and movement of the strip steel.
Preferably, the punch is detachably connected to the first base wheel.
Through adopting above-mentioned technical scheme, can dismantle through setting up the drift and connect in first base wheel to the change of drift is convenient for, through the drift of changing different sizes, shape, thereby punches a hole to steel band punching press different sizes, shape, and then improves the suitability of rolling the punch.
Preferably, the first die wheel further comprises a plurality of first fasteners, the first base wheel is provided with a plurality of mounting grooves along the circumferential direction of the first base wheel, the punch head is partially embedded in the mounting grooves, and the first fasteners movably penetrate through the first base wheel and are in threaded connection with the punch head.
Through adopting above-mentioned technical scheme, through setting up first fastener, the drift is partly inlayed and is located in the mounting groove to the quick location of drift, first fastener threaded connection can realize the detachable connection of drift in the drift, convenient operation is simple.
Preferably, the first die wheel further comprises a plurality of second fasteners which are in threaded connection with the first base wheel and abutted against the punch.
Through adopting above-mentioned technical scheme, through setting up the second fastener, second fastener threaded connection is in first base wheel and support tightly in the drift to the displacement takes place for restriction drift, thereby improves the stability of drift installation.
Preferably, the first die wheel further comprises a first rotating shaft, the first rotating shaft is rotatably connected to the frame, and the first base wheel is detachably connected to the first rotating shaft.
Through adopting above-mentioned technical scheme, through setting up first pivot, first base wheel can dismantle and connect in first base wheel to the installation and the dismantlement of first base wheel of being convenient for change the first base wheel that has not unidimensional, shape drift, thereby punch a hole to steel band punching press not unidimensional, the shape, and then improve the suitability of rolling towards the machine.
Preferably, the second die wheel further comprises a second rotating shaft, the second rotating shaft is rotatably connected to the frame, and the second base wheel is detachably connected to the second rotating shaft.
Through adopting above-mentioned technical scheme, through setting up the second pivot, the second base wheel can dismantle and connect in the second base wheel to the installation and the dismantlement of second base wheel, thereby be convenient for change the second base wheel that has different sizes, shape punching press hole, with the drift of adaptation in different sizes, shapes, and then improve the quality of punching a hole.
Preferably, the rolling machine further comprises two transport assemblies, the two transport assemblies are arranged on two sides of the first base wheel, each transport assembly comprises a driving roller and a driven roller which are arranged at intervals, and the driving roller and the driven roller are both rotatably connected to the frame; wherein the drive assembly drives the drive roll to rotate.
Through adopting above-mentioned technical scheme, through setting up transportation subassembly, belted steel passes through two transportation subassemblies in proper order, and belted steel passes through from between drive roll and the driven voller, because drive assembly drives each drive roll and rotates, the drive roll drives belted steel to realize that belted steel removes along the length direction of frame, thereby realize the transportation of belted steel.
Preferably, the rolling machine further comprises two first guide assemblies, wherein the two first guide assemblies are arranged on two sides of the first base wheel and are positioned between the two transport assemblies; the first guide assembly comprises a mounting plate and two guide wheels, the two guide wheels are rotatably connected to the mounting plate at intervals, and the mounting plate is arranged on the frame.
Through adopting above-mentioned technical scheme, through setting up first guide assembly, belted steel passes through between two leading wheels to realize guiding the removal of belted steel, improve the stability that belted steel removed, buckle the damage when avoiding belted steel to the greatest extent to remove.
Preferably, the rolling machine further comprises two second guide assemblies, the two second guide assemblies are arranged at two ends of the frame, each second guide assembly comprises a mounting frame and a plurality of guide rollers, the guide rollers are rotated at intervals to the mounting frame, and the mounting frame is arranged on the frame.
Through adopting above-mentioned technical scheme, through setting up the second direction subassembly, belted steel is when feeding and ejection of compact to rolling towards the machine, and belted steel is led through each leading wheel to the feeding and the ejection of compact of belted steel.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. when the strip steel punching machine works actually, strip steel moves along the length direction of the frame and passes through the space between the first base wheel and the second base wheel, and the punches extend into the punching holes to realize the punching of the strip steel; the first base wheel and the second base wheel rotate in opposite directions, so that the strip steel can be stably moved while being punched;
2. the punch is detachably connected to the first base wheel, so that the punch is convenient to replace, and the punch with different sizes and shapes is replaced, so that the punched holes with different sizes and shapes are punched on the steel strip, and the applicability of the rolling punch is improved;
3. through setting up first pivot, first base wheel can dismantle and connect in first base wheel to the installation and the dismantlement of first base wheel of being convenient for change the first base wheel that has not unidimensional, shape drift, thereby punch a hole to steel band punching press not unidimensional, shape, and then improve the suitability of rolling towards the machine.
Drawings
FIG. 1 is a schematic view of the overall structure of a tumble machine according to an embodiment of the utility model;
FIG. 2 is a schematic view of the mounting box with the first and second die wheels in an embodiment of the utility model;
FIG. 3 is an exploded view of the mounting case and first and second die wheels of an embodiment of the present utility model;
fig. 4 is another view of the overall structure of the tumble machine according to the embodiment of the utility model.
Reference numerals: 1. a frame; 11. a frame body; 12. a mounting box; 13. a mounting frame; 2. a first die wheel; 21. a first base wheel; 22. a punch; 23. a first fastener; 24. a mounting groove; 25. a second fastener; 26. a first rotating shaft; 3. a second die wheel; 31. a second base wheel; 32. punching a hole; 33. a second rotating shaft; 4. a drive assembly; 41. a motor; 42. a first transmission member; 43. a first gear; 44. a second gear; 45. a second transmission member; 5. a transport assembly; 51. a drive roll; 52. driven roller; 6. a first guide assembly; 61. a mounting plate; 62. a guide wheel; 7. a second guide assembly; 71. a mounting frame; 72. and a guide roller.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-4.
The embodiment of the utility model discloses a rolling and punching machine.
Referring to fig. 1, the tumble machine includes a frame 1, a first die wheel 2, a second die wheel 3, and a driving assembly 4, the frame 1 includes a frame body 11 and a mounting box 12, and the first die wheel 2 and the second die wheel 3 are disposed at a side of the mounting box 12 along a vertical direction at intervals.
Referring to fig. 1 and 2, in detail, the first die wheel 2 includes a first base wheel 21 rotatably coupled to the mounting case 12 and a plurality of punches 22, the plurality of punches 22 being fixedly coupled to an outer peripheral side of the first base wheel 21 and being disposed at uniform intervals in a circumferential direction of the first base wheel 21. The second die wheel 3 comprises a second base wheel 31 rotatably connected to the mounting box 12, a plurality of punching holes 32 are formed in the outer peripheral shaft of the second base wheel 31, the plurality of punching holes 32 are uniformly arranged at intervals along the circumferential direction of the second base wheel 31, and a gap for the strip steel to pass through is formed between the second base wheel 31 and the first base wheel 21.
The driving assembly 4 is arranged on the frame 11 and the installation box 12, and the driving assembly 4 drives the first base wheel 21 and the second base wheel 31 to rotate simultaneously, wherein the rotation directions of the first base wheel 21 and the second base wheel 31 are opposite, so that the strip steel can be transported and moved conveniently.
In actual operation, the direction of the conveying movement of the strip steel is the length direction of the frame 11, the strip steel moves to pass through between the first base wheel 21 and the second base wheel 31, and the punches 22 extend into the punching holes 32 to realize punching of the strip steel, and as the first base wheel 21 and the second base wheel 31 are driven by the driving assembly 4 to rotate, the punches 22 sequentially extend into the punching holes 32 to continuously punch the strip steel, so that the punching efficiency of the strip steel is improved.
Referring to fig. 3, in some embodiments, the punch 22 is detachably connected to the first base wheel 21, and in actual operation, the punch 22 is subject to wear to facilitate replacement of an excessively worn punch 22. Moreover, the punch heads 22 with different sizes and shapes can be replaced, so that the punched holes with different sizes and shapes can be punched on the steel strip, and the applicability of the rolling punch is improved.
In some embodiments, the first die wheel 2 further includes a plurality of first fasteners 23, and the outer peripheral side of the first base wheel 21 is provided with a plurality of mounting grooves 24 circumferentially spaced apart along the outer peripheral side thereof, and each punch 22 is partially embedded in each mounting groove 24, so as to achieve quick positioning and mounting of the punch 22. Each first fastening piece 23 is arranged on the inner peripheral side of the first base wheel 21, and each first fastening piece 23 movably penetrates through the first base wheel 21 and is connected with each punch 22 in a threaded mode, so that detachable connection of the punches 22 is achieved, and the structure is simple and operation is convenient. The portion of the punch 22 protruding from the first base wheel 21 may be set according to the shape of the punched hole.
In some embodiments, the first die wheel 2 further includes a plurality of second fasteners 25, the second fasteners 25 are screwed on a side of the first base wheel 21 away from the mounting box 12, and an end of each second fastener 25 abuts against a side wall of the corresponding punch 22 to limit displacement of the corresponding punch 22, so as to avoid the punch 22 from being separated from the mounting groove 24, thereby improving stability of mounting the corresponding punch 22 and improving punching quality of the strip steel.
In some embodiments, the first die wheel 2 further includes a first shaft 26, the first shaft 26 is rotatably connected to the mounting case 12, and the first base wheel 21 is detachably connected to the first shaft 26, thereby enabling the first base wheel 21 to be rotatably connected to the mounting case 12. Of course, the first base wheel 21 can be detachably connected with the first rotating shaft 26 through bolt fixed connection, clamping connection and the like, so that the first base wheel 21 can be conveniently installed and detached, the first die wheel 2 with the punches 22 of different sizes and shapes can be conveniently replaced, punching holes of different sizes and shapes can be punched on the steel belt, and the applicability of the rolling and punching machine can be improved.
In some embodiments, the second die wheel 3 further includes a second rotating shaft 33, the second rotating shaft 33 is rotatably connected to the mounting box 12, and the second base wheel 31 is detachably connected to the first rotating shaft 26, so that the second base wheel 31 is rotatably connected to the mounting box 12. Wherein, the second base wheel 31 can be detachably connected with the second rotating shaft 33 through bolt fixed connection, clamping connection and the like, so that the second base wheel 31 can be conveniently and detachably connected, and the second die wheel 3 with stamping holes 32 with different sizes and shapes can be conveniently replaced, so as to be suitable for the punches 22 with different sizes and shapes, and further improve the punching quality.
Referring to fig. 4, in some embodiments, the tumble machine further includes two transport assemblies 5, the frame 1 further includes two mounting frames 13, the two mounting frames 13 are fixedly connected to two ends of the upper side of the frame 11, and the two transport assemblies 5 are respectively disposed on the two mounting frames 13, so that the two transport assemblies 5 are disposed on two sides of the first base wheel 21. Specifically, the transport assembly 5 includes a driving roller 51 and a driven roller 52 disposed at intervals in the vertical direction, and the driving roller 51 is located below the driven roller 52, and both the driving roller 51 and the driven roller 52 are rotatably connected in the mounting frame 13. The driving assembly 4 drives each driving roller 51 to rotate, the rotation direction of the driving rollers 51 is the same as that of the second base wheel 31, the strip steel sequentially passes through one of the conveying assemblies 5, between the first base wheel 21 and the second base wheel 31 and the other conveying assembly 5, and the strip steel passes through the driving rollers 51 and the driven rollers 52, and the driving rollers 51 drive the strip steel to move along the length direction of the frame 1, so that the strip steel is conveyed.
In some embodiments, the driving assembly 4 includes a motor 41, a first transmission member 42, a first gear 43 and a second gear 44, where the motor 41 is fixedly connected to the frame 11, the first transmission member 42 is used to connect the motor 41 and the second rotating shaft 33, and the first transmission member 42 may be a sprocket and a chain, or may be a belt pulley and a belt, so as to implement that the motor 41 drives the second rotating shaft 33 to rotate. The first gear 43 is fixedly connected to the first shaft 26, the second gear 44 is fixedly connected to the second shaft 33, and the first gear 43 is meshed with the second gear 44, so that the second shaft 33 drives the first shaft 26 to rotate, and the rotation directions of the first base wheel 21 and the second base wheel 31 are opposite.
The driving assembly 4 further comprises two second transmission parts 45, the structure of the second transmission parts 45 is the same as that of the first transmission parts 42, and the second transmission parts 45 are used for connecting the second rotating shaft 33 and the driving roller 51 so as to enable the second rotating shaft 33 to drive the driving roller 51 to rotate, and the rolling machine can realize rotation of all parts by only one motor 41.
In some embodiments, the tumble machine further includes two first guiding assemblies 6, where the two first guiding assemblies 6 are respectively provided on the two mounting frames 13, so that the two first guiding assemblies 6 are provided on two sides of the first base wheel 21 and between the two transporting assemblies 5. Specifically, the first guide assembly 6 includes a mounting plate 61 and two guide wheels 62, the mounting plate 61 is fixedly connected to the mounting frame 13, and the two guide wheels 62 are rotatably connected to the upper side of the mounting plate 61 and are disposed at intervals along the length direction of the mounting plate 61. The strip steel passes between the two guide wheels 62 to guide the movement of the strip steel, so that the stability of the movement of the strip steel is improved, and bending damage during the movement of the strip steel is avoided as much as possible.
In some embodiments, the tumble machine further comprises two second guiding assemblies 7, the two second guiding assemblies 7 being fixedly connected to the two mounting brackets 13, respectively. Specifically, the second guiding assembly 7 includes a mounting frame 71 and a plurality of guiding rollers 72, the mounting frame 71 is fixedly connected to the mounting frame 13, the plurality of guiding rollers 72 are rotatably connected to the mounting frame 71 and are arranged along the length direction of the mounting frame 71 at intervals, and when the strip steel is fed and discharged to the roll punching machine, the strip steel is guided by the guiding wheels 62, so that the strip steel is fed and discharged.
The implementation principle of the embodiment is as follows: in actual operation, the direction of the conveying movement of the strip steel is the length direction of the frame 11, the strip steel moves to pass through between the first base wheel 21 and the second base wheel 31, and the punches 22 extend into the punching holes 32 to realize punching of the strip steel, and as the first base wheel 21 and the second base wheel 31 are driven by the driving assembly 4 to rotate, the punches 22 sequentially extend into the punching holes 32 to continuously punch the strip steel, so that the punching efficiency of the strip steel is improved.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (9)
1. The utility model provides a roll towards machine which characterized in that: comprises a frame (1), a first die wheel (2), a second die wheel (3) and a driving component (4); the first die wheel (2) comprises a first base wheel (21) and a plurality of punches (22), the punches (22) are arranged at intervals along the circumferential direction of the first base wheel (21), and the first base wheel (21) is rotatably connected to the frame (1); the second die wheel (3) comprises a second base wheel (31), a plurality of punching holes (32) are formed in the second base wheel (31) along the circumferential direction of the second base wheel, and the second base wheel (31) is rotationally connected to the frame (1) and is arranged at intervals with the first base wheel (21); the driving assembly (4) drives the first base wheel (21) and the second base wheel (31) to rotate, and the direction of rotation of the first base wheel (21) and the direction of rotation of the second base wheel (31) are opposite.
2. A tumble machine as set forth in claim 1, characterized in that: the punch (22) is detachably connected to the first base wheel (21).
3. A tumble machine as set forth in claim 2, characterized in that: the first die wheel (2) further comprises a plurality of first fasteners (23), the first base wheel (21) is provided with a plurality of mounting grooves (24) along the circumferential direction of the first base wheel, the punch (22) is partially embedded in the mounting grooves (24), and the first fasteners (23) are movably arranged on the first base wheel (21) in a penetrating mode and are in threaded connection with the punch (22).
4. A tumble machine according to claim 3, characterised in that: the first die wheel (2) further comprises a plurality of second fasteners (25), and the second fasteners (25) are in threaded connection with the first base wheel (21) and abutted against the punch (22).
5. A tumble machine as set forth in claim 1, characterized in that: the first die wheel (2) further comprises a first rotating shaft (26), the first rotating shaft (26) is rotatably connected to the frame (1), and the first base wheel (21) is detachably connected to the first rotating shaft (26).
6. A tumble machine as set forth in claim 5, characterized in that: the second die wheel (3) further comprises a second rotating shaft (33), the second rotating shaft (33) is rotatably connected to the frame (1), and the second base wheel (31) is detachably connected to the second rotating shaft (33).
7. A tumble machine as set forth in claim 1, characterized in that: the rolling machine further comprises two conveying assemblies (5), the two conveying assemblies (5) are arranged on two sides of the first base wheel (21), the conveying assemblies (5) comprise a driving roller (51) and a driven roller (52) which are arranged at intervals, and the driving roller (51) and the driven roller (52) are both rotatably connected to the frame (1); wherein the drive assembly (4) drives the drive roller (51) to rotate.
8. A tumble machine as set forth in claim 7 wherein: the rolling machine further comprises two first guide assemblies (6), wherein the two first guide assemblies (6) are arranged on two sides of the first base wheel (21) and are positioned between the two conveying assemblies (5); the first guide assembly (6) comprises a mounting plate (61) and two guide wheels (62), the two guide wheels (62) are rotatably connected to the mounting plate (61) at intervals, and the mounting plate (61) is arranged on the frame (1).
9. A tumble machine as set forth in claim 7 wherein: the rolling machine further comprises two second guide assemblies (7), the two second guide assemblies (7) are arranged at two ends of the frame (1), each second guide assembly (7) comprises a mounting frame (71) and a plurality of guide rollers (72), the guide rollers (72) rotate at intervals in the mounting frames (71), and the mounting frames (71) are arranged on the frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321298102.7U CN219924263U (en) | 2023-05-26 | 2023-05-26 | Rolling and punching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321298102.7U CN219924263U (en) | 2023-05-26 | 2023-05-26 | Rolling and punching machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219924263U true CN219924263U (en) | 2023-10-31 |
Family
ID=88488086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321298102.7U Active CN219924263U (en) | 2023-05-26 | 2023-05-26 | Rolling and punching machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219924263U (en) |
-
2023
- 2023-05-26 CN CN202321298102.7U patent/CN219924263U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210333881U (en) | Punching machine | |
| CN113102616B (en) | Sheet metal stamping equipment | |
| CN216881415U (en) | A beat roll-feeding automatic production numerical control punch for bar shaped plate blanking autoloading | |
| CN219924263U (en) | Rolling and punching machine | |
| CN211708248U (en) | Plate shearing machine with guiding mechanism | |
| CN218252574U (en) | Intermittent fixed-frequency feeding mechanism of stamping device | |
| CN217798584U (en) | Hardware punching machine with intermittent fixed-distance conveying mechanism | |
| CN214814051U (en) | Continuous stamping device of car sheetmetal | |
| CN213378840U (en) | Stamping die with replaceable stamping die head | |
| CN111715842B (en) | Double-speed chain assembly machine with plastic finger protector and assembly method | |
| CN210816896U (en) | Top cover panel production device | |
| CN109502959B (en) | Glass compression molding workbench | |
| CN219562306U (en) | Feeding device for slitting machine set | |
| CN216066022U (en) | Rolling conveying device of laser coding machine | |
| CN213444656U (en) | Waste material conveying and collecting mechanism | |
| KR20060025410A (en) | Reel to cutting type auto riveting machine | |
| CN218987996U (en) | Aluminum shell bolt thread rolling machine | |
| CN218963658U (en) | Conveying device for punch press for manufacturing pop can cover | |
| CN219074175U (en) | Quick stamping forming equipment of aluminium cap | |
| CN205200378U (en) | Take guider's conveying roller | |
| CN213728852U (en) | Automatic production equipment for anti-seismic support pipe clamp | |
| CN218855449U (en) | Automobile wheel casing inner panel upgrades blanking mould transport mechanism | |
| CN217650236U (en) | Stepping assembly with accurate positioning function of material box | |
| CN215314814U (en) | Architectural decoration aluminum plate stamping forming device | |
| CN219211391U (en) | Stamping feeding device for notebook computer shell production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |