CN103692329B - A kind of cambered surface automatic polishing machine - Google Patents
A kind of cambered surface automatic polishing machine Download PDFInfo
- Publication number
- CN103692329B CN103692329B CN201310692461.5A CN201310692461A CN103692329B CN 103692329 B CN103692329 B CN 103692329B CN 201310692461 A CN201310692461 A CN 201310692461A CN 103692329 B CN103692329 B CN 103692329B
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- Prior art keywords
- back side
- fixture
- feeding
- positive
- corase grind
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The present invention relates to lockset processing unit (plant), a kind of cambered surface automatic polishing machine, comprise frame and be arranged on the controller in frame, pay-off, drawing mechanism, front burnishing device and polished backside device, first this cambered surface automatic polishing machine is pushed lock body workpiece in the jaw positive corase grind fixture and carries out front corase grind by the push rod on the first feeding rod in drawing mechanism, then the first feeding rod is backed to square one, the reposition of positive corase grind fixture, push rod is sent into next lock body workpiece corase grind, and the lock body workpiece of now having roughly ground is admitted to front fine-grinding fixture and carries out front fine grinding, then the first feeding rod is backed to square one, the lock body workpiece having refined falls into the first feeding track, and carry out falling into the second feeding track after 180 ° of upsets, carry out the polishing processing of another side. whole process is without artificial participation, and complete mechanical, automation, greatly reduce labour intensity, saved the production time, improved the quality of production.
Description
Technical field
The present invention relates to lockset processing unit (plant), relate in particular to a kind of cambered surface automatic polishing machine.
Background technology
The polishing of lockset is mainly machine glazed finish, on certain mechanical device, and with the corresponding way of contact, and certainUnder pressure-acting, make the polishing wheel running up contact generation friction with lockset surface of the work, by the surplus of lockset finished surfaceThe smooth technique of worn or rubbing down gradually. The not yet moulding at present of existing mechanization lockset polissoir, lockset polishing still inIn the artificial polishing stage, exist that cost of labor is high, labour intensity is large, the production time is long, quality of production unstability, therefore to energyThe device requirement that has new technology and control method is extremely urgent, necessary this project is further developed.
Summary of the invention
In order to address the above problem, the cambered surface that the object of the present invention is to provide a kind of mechanization, lockset that automaticity is high fromMoving polishing machine, the cambered surface automatic polishing machine of this lockset greatly reduces labour intensity, has saved the production time, has improved production matterAmount.
In order to realize above-mentioned object, the present invention has adopted following technical scheme:
A kind of cambered surface automatic polishing machine, comprises frame and is arranged on controller, pay-off, drawing mechanism, the front in frameBurnishing device and polished backside device, controller respectively with pay-off, front burnishing device, polished backside device control connection;Described pay-off comprises the first feeding track, the second feeding track, the first feeding rod, the second feeding rod and reversing device;The first feeding track and the second feeding track be arranged in parallel, the head end top of the end of the first feeding track in the second feeding track,Drawing mechanism is arranged on the head end top of the first feeding track; On the first feeding rod and the second feeding rod, be equipped with for promoting lock bodyThe push rod of workpiece, the first feeding rod is in the first feeding track below, and the second feeding rod is in the second feeding track below; ReversionMechanism comprises baffle plate, connecting rod, rebound and circular arc guide plate, and circular arc guide plate is arranged on the first feeding track end,Baffle plate is arranged on the first feeding track end one side, between baffle plate and circular arc guide plate, leaves the outlet falling into for lock body workpiece;The inner of the first feeding rod is connected by connecting rod with the inner of the second feeding rod, and rebound is arranged on connecting rod middle part and reboundBe between the first feeding track end and the second feeding track head end;
Described front burnishing device is corresponding with the first feeding track, and front burnishing device comprises positive rough polishing halo, positive finishing polishWheel, positive corase grind motor, positive fine grinding motor, positive corase grind fixture and front fine-grinding fixture; Described front corase grind motor is logicalCross belt transmission and drive positive rough polishing halo to rotate, positive fine grinding motor drives positive finishing polish wheel to rotate by belt transmission, justFace rough polishing halo and positive finishing polish wheel are successively set on the first feeding track top along the track feed direction of the first feeding track;Described polished backside device is corresponding with the second feeding track, and polished backside device comprises back side rough polishing halo, back side finishing polishWheel, back side corase grind motor, back side fine grinding motor, back side corase grind fixture and back side fine-grinding fixture; Back side corase grind motor passes through beltTransmission drives back side rough polishing halo to rotate, and back side fine grinding motor drives back side finishing polish wheel to rotate by belt transmission, back side rough polishingHalo and back side finishing polish wheel are successively set on the second feeding track top along the track feed direction of the second feeding track; Positive thickOn polishing wheel, positive finishing polish wheel, back side rough polishing halo and back side finishing polish wheel, be all connected with expansion tightening wheel.
Described frame is provided with front planker slide block and back side planker slide block, and positive corase grind fixture and front fine-grinding fixture are arranged on frontOn planker slide block, back side corase grind fixture and back side fine-grinding fixture are arranged on the planker slide block of the back side; Positive corase grind fixture, positive essenceGrinding jig, back side corase grind fixture and fine-grinding fixture upper end, the back side are equipped with the jaw for fixing lock body workpiece, positive corase grind fixtureOn jaw corresponding with positive rough polishing halo, the jaw on the fine-grinding fixture of front is corresponding with positive finishing polish wheel, back side corase grindJaw on fixture is corresponding with back side rough polishing halo, and the jaw on the fine-grinding fixture of the back side is corresponding with back side finishing polish wheel;
Positive corase grind fixture, front fine-grinding fixture, back side corase grind fixture are identical with the structure of back side fine-grinding fixture, include fixture stand,Movable cylinder, master slider, rotating cylinder and pincers piece, movable cylinder drives master slider to be slidably arranged in fixture stand, and rotating cylinder is fixed on masterOn slide block, the middle part of pincers piece is hinged on master slider, is provided with compatible stage clip in master slider, the lower end of compatible stage clip in pincers piece,The output of rotating cylinder is connected with the lower end of pincers piece, and jaw is in pincers piece upper end.
The present invention adopts technique scheme, this cambered surface automatic polishing machine first by the push rod on the first feeding rod by lock body workpieceIn drawing mechanism, push in the jaw positive corase grind fixture and carry out front corase grind, then the first feeding rod is backed to square one, frontThe reposition of corase grind fixture, the push rod on the first feeding rod is sent into next lock body workpiece and is roughly ground, and now roughly grindsLock body workpiece also synchronously sent into front fine-grinding fixture by push rod corresponding on the first feeding rod and carry out front fine grinding, then firstFeeding rod is backed to square one, front fine-grinding fixture reposition, and the lock body workpiece having refined falls into the first feeding track, goes forward side by sideAfter 180 ° of upsets of row, fall into the second feeding track, carry out the polishing processing of another side. Whole process is without artificial participation, completelyMechanization, automation, greatly reduce labour intensity, saved the production time, improved the quality of production.
Brief description of the drawings
Fig. 1 is structure front schematic view of the present invention.
Fig. 2 is the B face structural representation of Fig. 1.
Fig. 3 is the A portion enlarged drawing of Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the invention are described in further detail.
A kind of cambered surface automatic polishing machine as shown in Figures 1 to 3, comprises frame 8 and is arranged on controller 1, the feeding dress in framePut, drawing mechanism 3, front burnishing device 4 and polished backside device 5, controller 1 respectively with pay-off, positive mirror polish dressPut 4, polished backside device 5 control connections. Pay-off comprises that the first feeding track 21, the second feeding track 22, first sendMaterial bar 23, the second feeding rod 24 and reversing device. The first feeding track 21 and the second feeding track 22 be arranged in parallel, and firstThe head end top of the end of feeding track 21 in the second feeding track 22, drawing mechanism 3 is arranged on the first feeding track 21 headEnd top, specifically drawing mechanism 3 can be discharge bucket, and discharge bucket is in the first feeding track 21 head end tops, the first feeding rod23 and second are equipped with push rod 25, the first feeding rods 23 for promoting lock body workpiece on feeding rod 24 in the first feeding track21 belows, the second feeding rod 24 is in the second feeding track 22 belows, at the equipment work initial stage, on the first feeding rod 23Push rod 25 pushes lock body workpiece in the jaw positive corase grind fixture in drawing mechanism 3.
Reversing device comprises baffle plate 26, connecting rod 27, rebound 28 and circular arc guide plate 29, and circular arc guide plate 29 is establishedPut on the first feeding track 21 ends, baffle plate 26 is arranged on the first feeding track 21 end one sides, baffle plate 26 and circular arcBetween guide plate 29, leave the outlet 20 falling into for lock body workpiece. The inner of the first feeding rod 23 and the second feeding rod 24The inner connects by connecting rod 27, and rebound 28 is arranged on connecting rod 27 middle parts and rebound 28 is in the first feeding track 21Between end and the second feeding track 22 head ends. In use, lock body workpiece by the push rod 25 on the first feeding rod 23 firstOn feeding track 21, move ahead, until drop in the outlet 20 between baffle plate 26 and circular arc guide plate 29, due to lock body workThe translational speed of part is slower, has again the setting of baffle plate 26 and circular arc guide plate 29, and lock body workpiece can be along circular arc guide plate 29Reversion is downwards in 90 °, and now just falls on rebound 28, rebound 28, connecting rod 27 and the first charging ram, theTwo charging rams are all connected, i.e. running together, and the first charging ram drives rebound 28 to reset while reset, on rebound 28Lock body workpiece is subject to circular arc guide plate 29 at the volley to be stopped, so again overturn 90 ° and fall into below the second feeding railOn road 22.
Front burnishing device 4 is corresponding with the first feeding track 21, and front burnishing device 4 comprises positive rough polishing halo 41, justFace finishing polish wheel 42, positive corase grind motor 43, positive fine grinding motor 44, positive corase grind fixture 45 and front fine-grinding fixture 46.Positive corase grind motor 43 drives positive rough polishing halo 41 to rotate by belt transmission, and positive fine grinding motor 44 passes through belt driving bandMoving positive finishing polish wheel 42 rotates, and positive rough polishing halo 41 and positive finishing polish wheel 42 send along the track of the first feeding track 21Material direction is successively set on the first feeding track 21 tops. Polished backside device 5 is corresponding with the second feeding track 22, the back sideBurnishing device 5 comprise back side rough polishing halo 51, back side finishing polish wheel 52, back side corase grind motor 53, back side fine grinding motor 54,Back side corase grind fixture 55 and back side fine-grinding fixture 56. Back side corase grind motor 53 drives back side rough polishing halo 51 by belt transmissionRotate, back side fine grinding motor 54 drives back side finishing polish wheel 52 to rotate by belt transmission, back side rough polishing halo 51 and back side essencePolishing wheel 52 is successively set on the second feeding track 22 tops along the track feed direction of the second feeding track 22. Positive rough polishingOn wheel 41, positive finishing polish wheel 42, back side rough polishing halo 51 and back side finishing polish wheel 52, be all connected with expansion tightening wheel 6. Belt makesGrown easily and be stretched with the time, and expansion tightening wheel 6 can regulate the tension force of belt automatically, have in addition expansion tightening wheel 6 belt operationsMore steady, reduce noise and prevent from skidding.
Frame is provided with front planker slide block 47 and back side planker slide block 57, positive corase grind fixture 45 and front fine-grinding fixture 46Be arranged on front planker slide block 47, back side corase grind fixture 55 and back side fine-grinding fixture 56 are arranged on back side planker slide block 57,Being provided for of front planker slide block 47 and back side planker slide block 57 adjusted the distance between fixture and polishing wheel, and equipment is adapted toIn the lock body workpiece of the various different size sizes of processing. Positive corase grind fixture 45, front fine-grinding fixture 46, back side corase grind fixture55 and back side fine-grinding fixture 56 upper ends be equipped with the jaw for fixing lock body workpiece, the jaw on positive corase grind fixture 45 with justFace rough polishing halo 41 is corresponding, and it is 42 corresponding that the jaw on front fine-grinding fixture 46 and positive finishing polish are taken turns, back side corase grind fixtureJaw on 55 is corresponding with back side rough polishing halo 51, and it is 52 relative that the jaw on back side fine-grinding fixture 56 and back side finishing polish are taken turnsShould. It is identical with the structure of back side fine-grinding fixture 56 that fixture 45, front fine-grinding fixture 46 are roughly ground in front, fixture 55 is roughly ground at the back side,Include fixture stand 71, movable cylinder 72, master slider 73, rotating cylinder 74 and pincers piece 75, movable cylinder 72 drives master slider 73 slidingMoving being arranged in fixture stand 71, rotating cylinder 74 is fixed on master slider 73, and the middle part of pincers piece 75 is hinged on master slider 73,In master slider 73, be provided with compatible stage clip 76, the lower end of compatible stage clip 76 in pincers piece 75, the effect of compatible stage clip is compatibilityIn the scale error of same model workpiece and grinding and polishing process, avoid overload. The output of rotating cylinder 74 is connected with the lower end of pincers piece 75,Jaw is in pincers piece 75 upper ends. In use, under the original state of pincers piece 75, to be X degree outward-dipping, now track withPincers piece 75 matches, and lock body workpiece workpiece pushes in the jaw of pincers piece 75 by push rod 25, and movable cylinder 72 drives master slider 73Move to polishing wheel below and ensure that pin joint on polishing wheel and pincers piece 75 is on same straight line; Then rotating cylinder 74 drivesPincers piece 75 rotates along pin joint, until pincers piece 75 slopes inwardly after X degree, rotating cylinder 74 resets, and pincers piece 75 is inverted to originallyPosition, then movable cylinder 72 resets, and whole device recovers original state. Pincers piece 75 come and go rotate in polishing wheel to jaw inLock body workpiece carry out grinding and polishing processing, certainly clamp piece 75 also can repeatedly come and go rotate carry out repeatedly grinding and polishing processing, effect is better.
In sum, first this cambered surface automatic polishing machine pushes away lock body workpiece by the push rod on the first feeding rod in drawing mechanismEnter in the jaw on positive corase grind fixture and carry out front corase grind, then the first feeding rod is backed to square one, and positive corase grind fixture returns formerPosition, the push rod on the first feeding rod is sent into next lock body workpiece and is roughly ground, and the lock body workpiece of now having roughly ground also byOn the first feeding rod, corresponding push rod is synchronously sent into front fine-grinding fixture and is carried out front fine grinding, and then the first feeding rod is backed to square one,Front fine-grinding fixture reposition, the lock body workpiece having refined falls into the first feeding track, and carries out falling after 180 ° of upsetsEnter the second feeding track, carry out the polishing processing of another side. Whole process is without artificial participation, complete mechanical, automation,Greatly reduce labour intensity, saved the production time, improved the quality of production.
Claims (1)
1. a cambered surface automatic polishing machine, is characterized in that: comprise frame and be arranged on controller, pay-off in frame, go outMaterials device, front burnishing device and polished backside device, controller respectively with pay-off, front burnishing device, the back sideBurnishing device control connection; Described pay-off comprise the first feeding track, the second feeding track, the first feeding rod,The second feeding rod and reversing device; The first feeding track and the second feeding track be arranged in parallel, the end of the first feeding trackHead end top in the second feeding track, drawing mechanism is arranged on the head end top of the first feeding track; The first feeding rodWith on the second feeding rod, be equipped with the push rod for promoting lock body workpiece, the first feeding rod is in the first feeding track below,The second feeding rod is in the second feeding track below; Reversing device comprises baffle plate, connecting rod, rebound and circular arc guidingPlate, circular arc guide plate is arranged on the first feeding track end, and baffle plate is arranged on the first feeding track end one side, gearBetween plate and circular arc guide plate, leave the outlet falling into for lock body workpiece; The inner of the first feeding rod and the second feeding rodThe inner connect by connecting rod, rebound is arranged on connecting rod middle part and rebound and is in the first feeding track end and theBetween two feeding track head ends;
Described front burnishing device is corresponding with the first feeding track, and front burnishing device comprises positive rough polishing halo, positive essencePolishing wheel, positive corase grind motor, positive fine grinding motor, positive corase grind fixture and front fine-grinding fixture; Described front is thickElectric mill machine drives positive rough polishing halo to rotate by belt transmission, and positive fine grinding motor drives positive essence to throw by belt transmissionHalo rotates, and positive rough polishing halo and positive finishing polish wheel is successively set on the along the track feed direction of the first feeding trackOne feeding track top;
Described polished backside device is corresponding with the second feeding track, and polished backside device comprises back side rough polishing halo, back side essencePolishing wheel, back side corase grind motor, back side fine grinding motor, back side corase grind fixture and back side fine-grinding fixture; Back side corase grind motorDrive back side rough polishing halo to rotate by belt transmission, back side fine grinding motor drives back side finishing polish wheel to turn by belt transmissionMoving, back side rough polishing halo and back side finishing polish wheel are successively set on the second feeding along the track feed direction of the second feeding trackTrack top; On positive rough polishing halo, positive finishing polish wheel, back side rough polishing halo and back side finishing polish wheel, be all connected with and riseBearing up pulley;
Described frame is provided with front planker slide block and back side planker slide block, and positive corase grind fixture and front fine-grinding fixture are arranged onOn the planker slide block of front, back side corase grind fixture and back side fine-grinding fixture are arranged on the planker slide block of the back side; Positive corase grind folderTool, front fine-grinding fixture, back side corase grind fixture and fine-grinding fixture upper end, the back side are equipped with the pincers for fixing lock body workpieceMouthful, the jaw on positive corase grind fixture is corresponding with positive rough polishing halo, and the jaw on the fine-grinding fixture of front is thrown with positive essenceHalo is corresponding, and the jaw on back side corase grind fixture is corresponding with back side rough polishing halo, the jaw on the fine-grinding fixture of the back side andBack side finishing polish wheel is corresponding;
It is identical with the structure of back side fine-grinding fixture that fixture, front fine-grinding fixture are roughly ground in front, fixture is roughly ground at the back side, includes fixtureFrame, movable cylinder, master slider, rotating cylinder and pincers piece, movable cylinder drives master slider to be slidably arranged in fixture stand, rotating cylinderBe fixed on master slider, pincers piece middle part be hinged on master slider, in master slider, be provided with compatible stage clip, compatible stage clip inThe lower end of pincers piece, the output of rotating cylinder is connected with the lower end of pincers piece, and jaw is in pincers piece upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310692461.5A CN103692329B (en) | 2013-12-16 | 2013-12-16 | A kind of cambered surface automatic polishing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310692461.5A CN103692329B (en) | 2013-12-16 | 2013-12-16 | A kind of cambered surface automatic polishing machine |
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| Publication Number | Publication Date |
|---|---|
| CN103692329A CN103692329A (en) | 2014-04-02 |
| CN103692329B true CN103692329B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310692461.5A Active CN103692329B (en) | 2013-12-16 | 2013-12-16 | A kind of cambered surface automatic polishing machine |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104440410B (en) * | 2014-11-26 | 2016-08-31 | 河南摩西机械制造有限公司 | A kind of iron pan glossing |
| CN108381346B (en) * | 2017-01-23 | 2020-02-07 | 王小娟 | Polishing machine for end face of lock sealing piece |
| CN107052956B (en) * | 2017-01-23 | 2023-02-28 | 张必葵 | Arc lock face double-sided polishing machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2079103U (en) * | 1990-11-06 | 1991-06-19 | 沈阳机电研究设计院 | Multi-head grinding machine |
| US5934983A (en) * | 1996-04-08 | 1999-08-10 | Kabushiki Kaisha Kobe Seiko Sho | Double-side grinding method and double-side grinder |
| EP1837121A1 (en) * | 2006-03-23 | 2007-09-26 | Maschinen- und Stahlbau, Julius Lippert GmbH & Co. KG | Abrading device for abrading the base of a ceramic or porcelain object |
| CN201164959Y (en) * | 2008-01-28 | 2008-12-17 | 赵爱军 | Automatic holystoning brick grinding machine |
| CN202825519U (en) * | 2012-08-16 | 2013-03-27 | 咸阳大田机械有限责任公司 | Dry polishing machine |
| CN202894962U (en) * | 2012-11-23 | 2013-04-24 | 高兆松 | Four-side abnormal shape polishing machine |
| CN203003646U (en) * | 2013-01-21 | 2013-06-19 | 陈丰山 | Crystal glass surface abrasive machine |
-
2013
- 2013-12-16 CN CN201310692461.5A patent/CN103692329B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2079103U (en) * | 1990-11-06 | 1991-06-19 | 沈阳机电研究设计院 | Multi-head grinding machine |
| US5934983A (en) * | 1996-04-08 | 1999-08-10 | Kabushiki Kaisha Kobe Seiko Sho | Double-side grinding method and double-side grinder |
| EP1837121A1 (en) * | 2006-03-23 | 2007-09-26 | Maschinen- und Stahlbau, Julius Lippert GmbH & Co. KG | Abrading device for abrading the base of a ceramic or porcelain object |
| CN201164959Y (en) * | 2008-01-28 | 2008-12-17 | 赵爱军 | Automatic holystoning brick grinding machine |
| CN202825519U (en) * | 2012-08-16 | 2013-03-27 | 咸阳大田机械有限责任公司 | Dry polishing machine |
| CN202894962U (en) * | 2012-11-23 | 2013-04-24 | 高兆松 | Four-side abnormal shape polishing machine |
| CN203003646U (en) * | 2013-01-21 | 2013-06-19 | 陈丰山 | Crystal glass surface abrasive machine |
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| CN103692329A (en) | 2014-04-02 |
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Effective date of registration: 20201225 Address after: 224000 room 312, building 3, R & D center, 69 East Ring Road, Yancheng Economic and Technological Development Zone, Jiangsu Province Patentee after: JIANGSU CHINESE TECHNOLOGY TECHNOLOGY SERVICE Co.,Ltd. Address before: 322200 183 Jinlei Avenue, Pujiang County, Jinhua, Zhejiang Patentee before: PUJIANG LIANLI MACHINERY Co.,Ltd. |
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Effective date of registration: 20230705 Address after: 224001 Building 1, 4 and 5, No. 8, Jinsha River Road, Yancheng Economic and Technological Development Zone, Jiangsu Province Patentee after: Lingyun New Energy Technology Co.,Ltd. Address before: Room 309, building 1, No.69, Donghuan South Road, Yancheng Economic and Technological Development Zone, Jiangsu 224000 Patentee before: Jiangsu Yanxin Automobile Industry Investment Development Co.,Ltd. |