CN104690170B - A kind of punch-forming mold and using method thereof - Google Patents
A kind of punch-forming mold and using method thereof Download PDFInfo
- Publication number
- CN104690170B CN104690170B CN201510142960.6A CN201510142960A CN104690170B CN 104690170 B CN104690170 B CN 104690170B CN 201510142960 A CN201510142960 A CN 201510142960A CN 104690170 B CN104690170 B CN 104690170B
- Authority
- CN
- China
- Prior art keywords
- workpiece
- blank holder
- lower mold
- mold
- pedestal
- 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
- 238000000034 method Methods 0.000 title claims description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000003825 pressing Methods 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 description 5
- 230000032683 aging Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
nullA kind of punch-forming mold，For pressing component (1)，Including pedestal (4)、Upper mold (2) and lower mold (3)，Described lower mold (3) is supported on described pedestal (4)，Described upper mold (2) can be moved towards described lower mold (3) by the pressure down of compacting drive mechanism (9) thus the workpiece (1) that will be positioned between described lower mold (3) and upper mold (2) is compressing，It is provided with blank holder against ring portion (31) at the outer circumference of described lower mold (3)，It is further fixedly arranged at least two root posts (41) on described pedestal (4)，Described blank holder against ring portion (31) in order to cooperate with blank holder (8) thus the circumferential edges by workpiece (1) is folded in therebetween，Described blank holder (8) and described at least two root posts (41) are slidably matched and can compression springs (412) on the limiting section (411) fixed by being resisted against described column (41) upper end place.
Description
Technical field
The invention belongs to compressing field, be specially a kind of punch-forming mold and using method thereof.
Background technology
In order to ensure forming accuracy in forming process for the punch-forming mold and position accuracy, blank holder is generally used to carry out maintenance to workpiece blank.
And after the press process of this mould finishes, it usually needs carry out next step process to workpiece, such as surface quality and SHAPE DETECTION, heat treatment (Ageing Treatment), shape partial trim etc..After this being disposed, need from mould, open (molding) workpiece.
If blank holder is directly removed with upper mold, then when causing process after forming, (relative to lower mold) is impacted to the positional precision of workpiece.And blank holder is stayed in lower mold, then the molding (especially automatically performing molding) to workpiece impacts.
Content of the invention
It is an object of the invention to provide a kind of punch-forming mold and using method thereof, it can overcome drawbacks described above.
nullPunch-forming mold according to an aspect of the present invention，For pressing component，Including pedestal、Upper mold and lower mold，Described lower mold is supported on described pedestal，Described upper mold can be towards the motion of described lower mold thus by compressing for the workpiece that is positioned between described lower mold and upper mold by the pressure down of compacting drive mechanism，It is provided with blank holder against ring portion at the outer circumference of described lower mold，It is further fixedly arranged at least two root posts on described pedestal，The circumferential edges of workpiece is folded in therebetween in order to cooperate with blank holder by described blank holder against ring portion，Described blank holder and described at least two root posts are slidably matched and can compression springs on the limiting section fixed by being resisted against described column upper end place、And with the described compacting blank holder pressing member that couples of drive mechanism and slide downward be pressed on the circumferential edges of described workpiece，It is provided with cavity portion between the base plate of described lower mold and described pedestal，Described cavity portion is provided with workpiece die lifter，Described workpiece die lifter includes the driving motor being fixedly installed on the described base plate of described pedestal，Described driving motor couples with output shaft，Output shaft is by bonded and be slidably matched with sliding sleeve，It is provided with external splines on the lateral surface of described sliding sleeve，The end driving motor is provided with radially inner extended loop，Extended loop be provided centrally with internal splined hole，It is rotatably mounted with also by bearing on described pedestal in the middle part of workpiece and eject driving screw rod，Eject in the middle part of described workpiece and drive the lower end of screw rod to be provided with radially enlarged splined head，Described splined head is positioned in the internal cavities of described sliding sleeve，The screw-internal thread fit driving screw rod by ejection piece in the middle part of external screw thread and workpiece is ejected in the middle part of described workpiece，In the middle part of described workpiece ejection piece by the guide frame that is fixedly installed and with described lower mold in the middle part of in pilot hole be slidably matched，In the middle part of described workpiece, the top of ejection piece is that lower mold embeds head，Described lower mold embeds a part for the profiled surface of the described lower mold of upper side composition of head，
Wherein, when described sliding sleeve slides into upper position, thread barrel can be ejected with the blank holder being rotatably mounted on described pedestal to engage and be driven, described blank holder ejects the external screw thread of thread barrel and the internal thread hole threaded engagement of blank holder ejection piece, described blank holder ejection piece is provided with upwardly extending blank holder knock-pin portion and is ejected in order to engage the downside of blank holder, described blank holder ejection piece is also slidably matched with the bar that is vertically directed on the base plate being fixedly arranged on described pedestal, the described described blank holder ejection piece lower end being vertically directed outside bar is provided with stretching spring, described stretching spring upper end is fixed on described blank holder ejection piece lower end, described stretching lower spring end is fixed on described pedestal；
When described sliding sleeve slides into lower position, its internal splined hole engages with described splined head and can drive and eject driving screw rod in the middle part of described workpiece.
According on the other hand, the using method of punch-forming mold described above, first with described blank holder knock-pin portion, blank holder is backed down, workpiece blank is placed in position, then utilize compression spring and blank holder is pushed down the peripheral edge of workpiece blank, afterwards, upper mold and blank holder pressing member are descending, and workpiece blank is press-forming into workpiece；Afterwards, upper mold and blank holder pressing member are up, then the profile parts of compressing workpiece is detected and is heat-treated, afterwards, first with described blank holder knock-pin portion, blank holder is backed down, the middle part recycling ejection piece in the middle part of described workpiece and acting on workpiece, thus workpiece is opened from lower mold.
By such scheme, first removing owing to have employed upper mold, blank holder is retained in the setting in lower mold, and it ensure that the positional precision of the subsequent treatment after compressing finishing.And utilizing the operation that workpiece middle die device and blank holder die lifter be performed separately, it ensure that the automatic sequence of workpiece molding performs, and can be easy to workpiece and be loaded in punch-forming mold.By the flush bonding module being arranged in lower mold molded surface, the workpiece after shaping can be carried out the effective demoulding rise from.And entirely device uses same molding motor, the cost of manufacture of mould can be saved, reduce equipment complexity.By having the setting of the device of the compacting blank holders such as spring, ensure that after upper mold rises out, still can have certain desirable pressure to blank holder, thus ensure the positional precision relative to lower mold for the workpiece.
Brief description
Fig. 1 is the overall schematic of the punch-forming mold of the present invention.
Detailed description of the invention
1 the present invention is described in detail below in conjunction with the accompanying drawings.
nullPunch-forming mold according to embodiment，For pressing component 1，Including pedestal 4、Upper mold 2 and lower mold 3，Described lower mold 3 is supported on described pedestal 4，Described upper mold 2 can be moved towards described lower mold 3 by the pressure down of compacting drive mechanism 9 thus by compressing for the workpiece 1 that is positioned between described lower mold 3 and upper mold 2，It is provided with blank holder against ring portion 31 at the outer circumference of described lower mold 3，It is further fixedly arranged at least two root posts 41 on described pedestal 4，Described blank holder against ring portion 31 in order to cooperate with blank holder 8 thus the circumferential edges by workpiece 1 is folded in therebetween，Described blank holder 8 and described at least two root posts 41 are slidably matched and can compression springs 412 on the limiting section 411 fixed by being resisted against described column 41 upper end place、And with the described compacting blank holder pressing member 91 that couples of drive mechanism 9 and slide downward be pressed on the circumferential edges of described workpiece 1，It is provided with cavity portion 45 between described lower mold 3 and the base plate of described pedestal 4，Described cavity portion 45 is provided with workpiece die lifter，Described workpiece die lifter includes the driving motor 7 being fixedly installed on the described base plate of described pedestal 4，Described driving motor 7 couples with output shaft 71，Output shaft 71 is by bonded and be slidably matched with sliding sleeve 72，It is provided with external splines on the lateral surface of described sliding sleeve 72，The end driving motor 7 is provided with radially inner extended loop，Extended loop be provided centrally with internal splined hole 742，It is rotatably mounted with also by bearing on described pedestal 4 and in the middle part of workpiece, eject driving screw rod 74，Eject in the middle part of described workpiece and drive the lower end of screw rod 74 to be provided with radially enlarged splined head 741，Described splined head 741 is positioned in the internal cavities 720 of described sliding sleeve 72，The screw-internal thread fit driving screw rod by ejection piece 75 in the middle part of external screw thread and workpiece is ejected in the middle part of described workpiece，In the middle part of described workpiece ejection piece 75 by the guide frame 77 that is fixedly installed and with described lower mold 3 in the middle part of in pilot hole be slidably matched，In the middle part of described workpiece, the top of ejection piece 75 is lower mold embedded 78，A part for the profiled surface of the described lower mold 3 of upper side composition that described lower mold is embedded 78，
nullWherein，When described sliding sleeve 72 slides into upper position，Thread barrel 73 can be ejected with the blank holder being rotatably mounted on described pedestal 4 to engage and be driven，Described blank holder ejects the external screw thread 731 of thread barrel 73 and internal thread hole 761 threaded engagement of blank holder ejection piece 76，Described blank holder ejection piece 76 is provided with upwardly extending blank holder knock-pin portion 763 and is ejected in order to engage the downside of blank holder 8，Described blank holder ejection piece 76 also be vertically directed bar 43 on the base plate being fixedly arranged on described pedestal 4，44 are slidably matched，It described is vertically directed bar 43，Described blank holder ejection piece 76 lower end outside 44 is provided with stretching spring 50，Described stretching spring 50 upper end is fixed on described blank holder ejection piece 76 lower end，Described stretching spring 50 lower end is fixed on described pedestal 4；
When described sliding sleeve 72 slides into lower position, its internal splined hole 742 engages with described splined head 741 and can drive and eject driving screw rod 74 in the middle part of described workpiece.
According on the other hand, the using method of punch-forming mold described above, first with described blank holder knock-pin portion 763, blank holder 8 is backed down, workpiece blank is placed in position, then the peripheral edge utilizing compression spring 412 and blank holder 8 being pushed down workpiece blank, afterwards, upper mold 2 and blank holder pressing member 91 are descending, and workpiece blank is press-forming into workpiece；Afterwards, upper mold 2 and blank holder pressing member 91 are up, then carry out to the profile parts of compressing workpiece 1 detecting and carry out to be heat-treated such as Ageing Treatment or shape partial trim process, afterwards, first with described blank holder knock-pin portion 763, blank holder 8 is backed down, the middle part recycling ejection piece 75 in the middle part of described workpiece and acting on workpiece 1, thus workpiece 1 is opened from lower mold 3.
Claims (2)
- null1. a punch-forming mold，For pressing component (1)，Including pedestal (4)、Upper mold (2) and lower mold (3)，Described lower mold (3) is supported on described pedestal (4)，Described upper mold (2) can be moved towards described lower mold (3) by the pressure down of compacting drive mechanism (9) thus the workpiece (1) that will be positioned between described lower mold (3) and upper mold (2) is compressing，It is provided with blank holder against ring portion (31) at the outer circumference of described lower mold (3)，It is further fixedly arranged at least two root posts (41) on described pedestal (4)，Described blank holder against ring portion (31) in order to cooperate with blank holder (8) thus the circumferential edges by workpiece (1) is folded in therebetween，Described blank holder (8) and described at least two root posts (41) are slidably matched and can compression springs (412) on the limiting section (411) fixed by being resisted against described column (41) upper end place、And with described compacting drive mechanism (9) the blank holder pressing member (91) that couples and slide downward be pressed on the circumferential edges of described workpiece (1)，It is provided with cavity portion (45) between the base plate of described lower mold (3) and described pedestal (4)，Described cavity portion is provided with workpiece die lifter in (45)，Described workpiece die lifter includes the driving motor (7) being fixedly installed on the described base plate of described pedestal (4)，Described driving motor (7) couples with output shaft (71)，Output shaft (71) is by bonded and be slidably matched with sliding sleeve (72)，It is provided with external splines on the lateral surface of described sliding sleeve (72)，The end driving motor (7) is provided with radially inner extended loop，Extended loop be provided centrally with internal splined hole (742)，It is rotatably mounted with also by bearing on described pedestal (4) and in the middle part of workpiece, eject driving screw rod (74)，Eject in the middle part of described workpiece and drive the lower end of screw rod (74) to be provided with radially enlarged splined head (741)，Described splined head (741) is positioned in the internal cavities (720) of described sliding sleeve (72)，The screw-internal thread fit driving screw rod by ejection piece (75) in the middle part of external screw thread and workpiece is ejected in the middle part of described workpiece，In the middle part of described workpiece, ejection piece (75) is slidably matched with the pilot hole in described lower mold (3) middle part by the guide frame (77) that is fixedly installed，In the middle part of described workpiece, the top of ejection piece (75) is that lower mold embeds head (78)，Described lower mold embeds a part for the profiled surface of the described lower mold (3) of upper side composition of head (78)，nullWherein，When described sliding sleeve (72) slides into upper position，Thread barrel (73) can be ejected with the blank holder being rotatably mounted on described pedestal (4) to engage and be driven，Described blank holder ejects the external screw thread (731) of thread barrel (73) and internal thread hole (761) threaded engagement of blank holder ejection piece (76)，Described blank holder ejection piece (76) is provided with upwardly extending blank holder knock-pin portion (763) and is ejected in order to engage the downside of blank holder (8)，Described blank holder ejection piece (76) also be vertically directed bar (43 on the base plate being fixedly arranged on described pedestal (4)，44) it is slidably matched，It described is vertically directed bar (43，44) described blank holder ejection piece (76) lower end in outside is provided with stretching spring (50)，Described stretching spring (50) upper end is fixed on described blank holder ejection piece (76) lower end，Described stretching spring (50) its lower end is fixed on described pedestal (4)；When described sliding sleeve (72) slides into lower position, its internal splined hole (742) engages with described splined head (741) and can drive and eject driving screw rod (74) in the middle part of described workpiece.
- 2. the using method of punch-forming mold as claimed in claim 1, first with described blank holder knock-pin portion (763), blank holder (8) is backed down, workpiece blank is placed in position, then utilize compression spring (412) and stretching spring (50) that blank holder (8) is pushed down the peripheral edge of workpiece blank, afterwards, upper mold (2) and blank holder pressing member (91) are descending, and workpiece blank is press-forming into workpiece；Afterwards, upper mold (2) and blank holder pressing member (91) are up, then the profile parts of compressing workpiece (1) is detected and is heat-treated, afterwards, first with described blank holder knock-pin portion (763), blank holder (8) is backed down, recycle ejection piece (75) in the middle part of described workpiece and act on the middle part of workpiece (1), thus workpiece (1) is opened from lower mold (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510142960.6A CN104690170B (en) | 2015-03-30 | 2015-03-30 | A kind of punch-forming mold and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510142960.6A CN104690170B (en) | 2015-03-30 | 2015-03-30 | A kind of punch-forming mold and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104690170A CN104690170A (en) | 2015-06-10 |
| CN104690170B true CN104690170B (en) | 2016-10-05 |
Family
ID=53337934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510142960.6A Active CN104690170B (en) | 2015-03-30 | 2015-03-30 | A kind of punch-forming mold and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104690170B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942159A (en) * | 2015-07-29 | 2015-09-30 | 王宏斌 | Stamping die capable of cooling in time |
| CN105414299B (en) * | 2015-12-03 | 2018-05-29 | 湖北三江航天红阳机电有限公司 | A kind of revolving parts drawing and forming device and method |
| CN105376982A (en) * | 2015-12-17 | 2016-03-02 | 方德兰 | Fixing column device used for PCB circuit board and transmitted by gear |
| CN105406279A (en) * | 2015-12-17 | 2016-03-16 | 刘淑芬 | Fixing column device with ejector for a PCB |
| CN105430985A (en) * | 2015-12-17 | 2016-03-23 | 方德兰 | Fixing column device with solar panel for PCB capable of reducing noise |
| CN105376983A (en) * | 2015-12-17 | 2016-03-02 | 方德兰 | Fixing column device with alarm for PCB circuit board |
| CN105407680A (en) * | 2015-12-17 | 2016-03-16 | 苏朝芬 | Heat-dissipating fixing column device with alarm for PCB |
| CN105392352A (en) * | 2015-12-17 | 2016-03-09 | 苏朝芬 | Gas transmission system and cushion block-including fixed leg device for PCB circuit boards |
| CN109530518B (en) * | 2018-12-29 | 2023-05-30 | 无锡市振华亿美嘉科技有限公司 | Lock support three-action type stretching machine and stretching method |
| CN110355254A (en) * | 2019-07-18 | 2019-10-22 | 中山数码模汽车技术有限公司 | Anti- material returns back to top the stamping die and application its stamping equipment of deformation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201002359Y (en) * | 2007-01-17 | 2008-01-09 | 广东锻压机床厂有限公司 | Edge pressing and work-piece liftout attachment for pressure machine |
| CN201566151U (en) * | 2009-11-12 | 2010-09-01 | 南通天王液压成套厂 | Powder molding hydrodynamic press |
| CN202155431U (en) * | 2011-06-30 | 2012-03-07 | 上海工程技术大学 | Deep drawing die of multipoint steel ball male die |
| CN202239272U (en) * | 2011-09-30 | 2012-05-30 | 重庆市华青汽车配件有限公司 | Deep drawing die for bottom shell of electric water heater |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007330999A (en) * | 2006-06-15 | 2007-12-27 | Kurashiki Kako Co Ltd | Draw forming apparatus for outer case of vibration-proof bush |
| JP2008132523A (en) * | 2006-11-29 | 2008-06-12 | Jfe Steel Kk | Press forming apparatus of metal plate |
-
2015
- 2015-03-30 CN CN201510142960.6A patent/CN104690170B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201002359Y (en) * | 2007-01-17 | 2008-01-09 | 广东锻压机床厂有限公司 | Edge pressing and work-piece liftout attachment for pressure machine |
| CN201566151U (en) * | 2009-11-12 | 2010-09-01 | 南通天王液压成套厂 | Powder molding hydrodynamic press |
| CN202155431U (en) * | 2011-06-30 | 2012-03-07 | 上海工程技术大学 | Deep drawing die of multipoint steel ball male die |
| CN202239272U (en) * | 2011-09-30 | 2012-05-30 | 重庆市华青汽车配件有限公司 | Deep drawing die for bottom shell of electric water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104690170A (en) | 2015-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104760323B (en) | The die device of a kind of molding that can dispel the heat in time and using method thereof | |
| CN104690170B (en) | A kind of punch-forming mold and using method thereof | |
| CN104785629B (en) | The press-moulding die of a kind of low noise and using method thereof | |
| CN104668376B (en) | The punch-forming mold and its application method of a kind of stabilization | |
| JP5262872B2 (en) | Stepping cup-shaped part forming apparatus and forming method | |
| CN206794516U (en) | A kind of diel of punching plates Compound Machining synchronous with flange | |
| CN102626741A (en) | Drawing compound molding die for shell with tooth form on side wall | |
| CN104669671B (en) | A kind of press-moulding die of low vibration and using method thereof | |
| CN212310529U (en) | Stamping die of automobile anti-fracture sealing ring | |
| CN101920301B (en) | Suspension type upsetting material gathering die structure | |
| CN104118091B (en) | The automatic cover closing mechanism of bottle cap injection mold | |
| CN104668560B (en) | A kind of die device and using method thereof | |
| CN102941269A (en) | Tubular joint punching machine and punching method thereof | |
| CN203875244U (en) | Flanging ejecting device in automobile punching part flanging process | |
| CN212144210U (en) | Sub vehicle frame hypoplastron stamping die before car | |
| CN208960885U (en) | Piston Rods Die | |
| CN201685488U (en) | Double-disc friction forcing press with upper mould ejection mechanism | |
| CN201456346U (en) | Automobile wheel cover decorating piece mold interior drawing mechanism | |
| CN103418722B (en) | Processing method of carrying out rotary forging on forge pieces with high precision of truck hub | |
| CN205835874U (en) | The secondary ejecting mechanism of vehicle wiper injection mold for cover plate tool | |
| CN108032489A (en) | The sliding spring bushing mechanism in the block of one kind | |
| CN105252721B (en) | Mechanism for driving screw rod to rotate and demould of injection mold top plate | |
| CN211662539U (en) | Secondary compression injection molding device | |
| CN107838356A (en) | The mould emptier of forcing press | |
| CN210412358U (en) | Mould divides mode structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Guan Zongyan Inventor after: Tan Wenqing Inventor before: Wang Hongbin |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170407 Address after: 528211 Xiqiao Development Zone, Nanhai District, Foshan, Guangdong Patentee after: Nanhai District of Foshan City Bridge Hardware plastic limited company Address before: No. 58 Tongxiang Jiaxing City, Zhejiang province 314504 city streets Lung Cheung Road Patentee before: Wang Hongbin |