CN102417963A - Quenching mechanism for car stabilizer bar - Google Patents
Quenching mechanism for car stabilizer bar Download PDFInfo
- Publication number
- CN102417963A CN102417963A CN2011103233226A CN201110323322A CN102417963A CN 102417963 A CN102417963 A CN 102417963A CN 2011103233226 A CN2011103233226 A CN 2011103233226A CN 201110323322 A CN201110323322 A CN 201110323322A CN 102417963 A CN102417963 A CN 102417963A
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- casing
- rotating disk
- stabilizer bar
- quenching
- clamping rotating
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- 230000007246 mechanism Effects 0.000 title claims abstract description 63
- 238000010791 quenching Methods 0.000 title claims abstract description 59
- 230000000171 quenching effect Effects 0.000 title claims abstract description 52
- 239000003381 stabilizer Substances 0.000 title claims abstract description 31
- 238000012546 transfer Methods 0.000 claims description 43
- 239000007788 liquid Substances 0.000 claims description 21
- 239000002893 slag Substances 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010924 continuous production Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 239000000047 product Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000003818 cinder Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000386 athletic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention relates to the technical field of quenching equipment, in particular to a car stabilizer bar quenching mechanism, which solves the problems that the existing car stabilizer bar is difficult to correct by heating deformation or low in manual operation efficiency during quenching. The continuous production is completed, the efficiency is high, the adjusting time is short, the maintenance cost is low, and the quality is stable.
Description
Technical field
The equipment technology field that the present invention relates to quench especially relates to a kind of car stabilizer bar quenching mechanism.
Background technology
One of the production of existing car stabilizer bar and equipment work program mainly contain, and are placed into the high temperature workpiece on the quenching press dip quench liquid under free state; Utilize carriage to transfer out hardening liquid to workpiece, the defective of this processing line is that the change in shape that produces during heating can not revised because the workpiece free state is quenched; Need proofread and correct shape of product again after the tempering; Workload is big, and inefficiency has increased product cost greatly.Other has processing line to be, the high temperature workpiece is placed on the quenching press under the clamp position dip quench liquid and lifts quenching press and leave hardening liquid, the manual workpiece that takes out; Though this equipment can quench the piece-holder state down like this; The shape that guaranteed workpiece, but can not continuous production, and production efficiency is also very low.Similar existing technology also has the kinds of processes mode, but effect is all different with the present invention.Like patent announcement number is a kind of big specification rod-like member continuous refining heat-treatment production line of CN201520788U; Comprise feed mechanism, shedding mechanism and automatic control system; Be provided with the transmission roller-way between feed mechanism and the shedding mechanism; To shedding mechanism, be provided with induction quenching heating zone, jet-type quench cooled section, induction tempering heating zone, jet-type tempering cooling section successively from feed mechanism along transmitting roller-way.And for example patent announcement number is a kind of quenching frame hoisting device that provides of CN201883113U; Comprise mainframe and have the quenching frame of steel cylinder clamping device; Quenching frame side is provided with quenching frame roller, and mainframe is provided with first guide rail that cooperates with the frame roller that quenches, and is fixedly connected hydraulic ram on the quenching frame; The hydraulic push rod front end that cooperates with hydraulic ram is fixed on the mainframe; Also be provided with sprocket assemblies on the mainframe, chain one end that cooperates with sprocket assemblies is fixedly connected with the quenching press top of the trellis, and the chain the other end is fixedly connected with balancing weight.
Summary of the invention
The objective of the invention is in order to solve existing car stabilizer bar and to quench or add the problem of thermal distortion correction difficulty or handwork inefficiency, provide a kind of reasonable in design, can be automatic or automanual car stabilizer bar quenching mechanism.
Above-mentioned technical problem of the present invention mainly is able to solve through following technical proposals: a kind of car stabilizer bar quenching mechanism; The clamping rotating disk, the transfer mechanism that comprise casing, horizontal positioned; It is characterized in that described clamping rotating disk is a rolling type structure, be provided with omnipotent clamping tooling in the clamping rotating disk, clamp and be corrected to the setting shape from left and right, last three steering handle workpiece through mechanical drive mode; The hypomere of clamping rotating disk partly is arranged in casing; Hardening liquid is housed in the casing, and an end of transfer mechanism is positioned at the bottom of clamping rotating disk, and transfer mechanism is provided with horizontal section and promotes section; The below that is positioned at transfer mechanism in the casing is provided with the quenching chute, and the bottom of casing is provided with the horizontal section of automatic slag removal machine.Link to each other on clamping rotating disk and the stabilizer bar process furnace operation, the high temperature workpiece is placed on the roller press quenching machine, and the clamping rotating disk can be controlled automatically; Also can manually control, utilize clamping dial rotation kinetic energy, drive omnipotent clamping tooling through drive unit; Because temperature is higher; Then adopt mechanically operated mode, described omnipotent clamping tooling be a kind of on the landing slab from left and right, on three orientation clamp and be corrected to a kind of device of design requirements shape to the stabilizer bar workpiece, in clamping rotating disk dip quench liquid; Utilize the product waste heat to be quenched into workpiece and require hardness; This can guarantee from the isoparametric design of rotating speed, the residence time of clamping rotating disk, when the clamping dial rotation arrives certain angle, when the stabilizer bar that promptly is held is in transfer roller setting position; Omnipotent clamping tooling unclamps automatically, and workpiece drops on the transfer mechanism automatically.The speed of transfer roller is pressed the product cool time equally and is set; The temperature of hardening liquid, concentration, highly can adopt automatic monitoring system to control; The workpiece that the height of hardening liquid need satisfy on the clamping rotating disk just gets into as-quenched condition at position below horizontal; The oxide debris of in quenching process, peeling off sinks in the slide type quenching chute, makes oxide debris flow to automatic slag removal machine through moving voluntarily of hardening liquid and is removed.
As preferably, described clamping rotating disk comprises two disks that are parallel to each other, and is provided with some between two disks and distributes the landing slab that formula is arranged from disc centre to circumference, and omnipotent clamping tooling is arranged on disk and the landing slab.Each landing slab can carry out clamping workpiece, and a plurality of landing slabs just can guarantee the continuity of clamping workpiece, accomplishes the continuity of whole operating line, to raise the efficiency.
As preferably; Described omnipotent clamping tooling is provided with the locking latches that is made up of gear, tooth bar and automatically terminates device; Landing slab is provided with the horizontal supporting rod that cooperates with the stabilizer bar product, perpendicular supporting rod, is provided with some thimbles in horizontal supporting rod, the perpendicular supporting rod, and the clamping rotating disk turns to and automatically terminates device when the next and come into force; Automatically terminate coming into force of device and a little be positioned at the top of transfer mechanism horizontal section, a position of coming into force that automatically terminates device is provided with clamping rotating disk lockout mechanism.Because be the Working environment that is within high temperature and the liquid; And to make full revolution; Requirement to the operation control part part is very high, and general hydraulic pressure, element such as electronic, pneumatic are difficult to satisfy, and cost is high; Maintenance is complicated, so transmission mechanism, locking latches, each supporting rod and the thimble (the fixed parts that are used for locating workpiece) that adopt all adopt metal system mechanical system.The point position that automatically terminates device is positioned at clamping place of transfer roller holding workpieces just.
As preferably, an end of described clamping disk middle spindle is connected with drive unit.The present invention is provided with drive unit, and drive unit is made up of parts such as motor, step-down gear, clutch couplinges, adopts automatic mode of operation in normal operation.
As preferably, the other end of described clamping disk middle spindle is provided with hand crank.Characteristics of the present invention are when working zones such as startup, end, maintenance, can adopt manual mode control clamping rotating disk.
As preferably, the horizontal section of described transfer mechanism is arranged in casing, and the lifting section of transfer mechanism is shifted to outside the casing in casing.The horizontal section of transfer mechanism and the hypomere of tilting section all are in the casing, and workpiece also is in a kind of as-quenched condition on transfer roller, and product is come off by transfer roller output back workpiece automatically, gets into next process.
As preferably, the below that described transfer mechanism is positioned at the outer position of casing is provided with the slide tank, and the not end of tank of slipping links to each other with casing.Workpiece speckles with hardening liquid in output procedure, miss workpiece surface liquid the process that in casing, transports out basically, and these hardening liquids are recovered in the casing along the slide tank again.
As preferably, the drive unit of described transfer mechanism and the interlocking of clamping rotating blade drive.The clamping dial rotation is to the angle of setting, and clamping tooling unclamps automatically, and workpiece drops on the transfer roller automatically; After transfer mechanism is received new workpiece, start the program of advancing automatically, conveying workpieces stops to desired location; At the transfer mechanism on period, the clamping rotating disk is lockable, and can not rotate.
As preferably, described quenching chute is a skateboard structure, and the quenching chute becomes the inclination angle with tank floor, and the lower end of slide type quenching chute is positioned at the top of automatic slag removal machine horizontal section.All oxide debris that in heat treatment process, comes off moves with workpiece all falls in the quenching chute; Oxide debris drops to the back athletic meeting with hardening liquid in quenching chute bottom and slides in the scarfing cinder trough of quenching chute termination; Automatically scale removal; Need not stop production, improve throughput, improve operator's work situation and reduce labour intensity.
As preferably, described automatic slag removal machine is provided with tilting section, and the tilting section of automatic slag removal machine is not held and is positioned at outside the casing upper edge hole.Regularly start the scarfing cinder machine according to output; Utilize the scraper plate on the scarfing cinder machine conveyor chain to collect oxide debris in the scarfing cinder machine bucket; The scarfing cinder machine intermittently rotates by setting-up time, and the retention period drop descales and goes up the hardening liquid of trickling, makes it to be back in the quenching chute; Avoid waste, the scarfing cinder machine is transported to oxide debris in the collection box at last.
The invention has the beneficial effects as follows: the energy that utilizes roller to rotate, accomplish the technology that piece-holder is quenched, can continous way production, with the next procedure line, realize automatic production for stabilizer bar and created condition; Promptly can be applicable to the stabilizer bar of different shape in the production, and fast, characteristics such as equipment life is long, maintenance cost is low of adjustment time are arranged; And because product is long in the quenching oil internal cooling time, quality is good.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the right TV structure synoptic diagram of Fig. 1 of the present invention.
Among the figure: 1. transfer mechanism, 2. casing, 3. clamping rotating disk, 4. drive unit, 5. automatic slag removal machine 6. slips tank, 7. quenching chute.
Embodiment
Through embodiment, do further bright specifically below to technical scheme of the present invention.
Referring to Fig. 1, Fig. 2, a kind of car stabilizer bar of present embodiment quenching mechanism establishes a rectangular parallelepiped casing 2; Clamping rotating disk 3 is horizontally placed on an end of casing width; Lower part of clamping rotating disk 3 is arranged in casing 2, and clamping rotating disk 3 is a kind of rolling type structures, is provided with omnipotent clamping tooling in the clamping rotating disk 3; Clamp and be corrected to the setting shape through mechanical drive mode from left and right, last three steering handle workpiece, following orientation is the fixed thimble that is provided with by product structure.Clamping rotating disk 3 is provided with two disks that are parallel to each other, and establishes a hub along disc centre, and an end of hub is connected with drive unit 4, and the other end of hub is provided with hand crank.Be provided with 8 landing slabs that distribute the formula layout from disc centre to circumference between two disks; Landing slab is with tangent greater than hub triple circle; Omnipotent clamping tooling is arranged on the landing slab; The locking latches that is made up of gear, tooth bar that omnipotent clamping tooling is provided with and automatically terminate the outside that device is installed in two disks, landing slab is provided with the horizontal supporting rod that cooperates with the stabilizer bar product, perpendicular supporting rod, is provided with the thimble that cooperates with the yielding position of stabilizer bar in horizontal supporting rod, the perpendicular supporting rod.When clamping rotating disk 3 forwards to when the next, automatically terminate device and come into force, automatically terminate coming into force of device and a little be positioned at the top of transfer mechanism 1 horizontal section, this position of coming into force is provided with clamping rotating disk 3 lockout mechanisms, and locking mechanism cooperates with the transfer roller driving mechanism is chain.Transfer mechanism 1 is positioned at the outer below, transportation section of casing and is provided with slide tank 6, links to each other in the lower end of slide tank 6 and the casing 2.
The tail end of transfer mechanism 1 is positioned at the bottom of clamping rotating disk 3; Transfer mechanism 1 be provided with clamping rotating disk 3 on automatically terminate the mutual interlocking gear that device cooperates; Transfer mechanism 1 is provided with and is in horizontal section and the lifting section that partly is positioned at casing 2 in the casing 2 fully; Transfer mechanism is provided with manual control device, and quenching chute 7 is equipped with in the below that is positioned at transfer mechanism 1 in the casing 2, and quenching chute 7 is the slide type bathtub construction; Quenching chute 7 becomes 15 degree inclination angles with tank floor, the lower end of quenching chute 7 is positioned at the top of automatic slag removal machine 5 horizontal sections.
Automatic slag removal machine 5 is provided with conveyor chain, and scraper plate is housed on the conveyor chain, and the horizontal section of automatic slag removal machine 5 is positioned at the bottom of casing 2, and automatic slag removal machine 5 also is provided with tilting section, and the upper end of tilting section is positioned at the outside of casing 2, and the upper end afterbody of tilting section is provided with receiving hopper.
During work, fill hardening liquid in the casing 2, the horizontal section of transfer mechanism 1 is immersed in the hardening liquid fully; Be placed on the stabilizer bar workpiece after heating in the roller clamping rotating disk 3,, rotate clamping rotating disk 3 it is immersed in the hardening liquid by omnipotent clamping tooling locking; Utilize workpiece self heat energy to be quenched into the required hardness of technology; When clamping rotating disk 3 turns to the angle of setting, when promptly stabilizer bar moved to transfer roller material receiver position, omnipotent clamping tooling unclamped automatically; Workpiece drops on the transfer mechanism 1 automatically, is transported workpiece outside the casing 2 by transfer mechanism 1.In the workpiece moving process; The oxide debris that the quenching back comes off from workpiece is fallen to quenching chute 7 and through the motion of hardening liquid to dash to automatic slag removal machine 5 output casings 2, and the liquid that the workpiece from transfer mechanism 1 drips flows back to the casing 2 along slide tank 6.
The foregoing description is to explanation of the present invention, is not to qualification of the present invention, any structure after the simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (10)
1. car stabilizer bar quenching mechanism; The clamping rotating disk (3), the transfer mechanism (1) that comprise casing (2), horizontal positioned; It is characterized in that described clamping rotating disk (3) is a rolling type structure, be provided with omnipotent clamping tooling in the clamping rotating disk (3), clamp and be corrected to the setting shape from left and right, last three steering handle workpiece through mechanical drive mode; The hypomere of clamping rotating disk (3) partly is arranged in casing (2); Casing is equipped with hardening liquid in (2), and an end of transfer mechanism (1) is positioned at the bottom of clamping rotating disk (3), and transfer mechanism (1) is provided with horizontal section and promotes section; The below that is positioned at transfer mechanism (1) in the casing (2) is provided with quenching chute (7), and the bottom of casing (2) is provided with the horizontal section of automatic slag removal machine (5).
2. car stabilizer bar quenching according to claim 1 mechanism; It is characterized in that described clamping rotating disk (3) comprises two disks that are parallel to each other; Be provided with some between two disks and distribute the landing slab that formula is arranged from disc centre to circumference, omnipotent clamping tooling is arranged on disk and the landing slab.
3. car stabilizer bar quenching according to claim 1 and 2 mechanism; It is characterized in that described omnipotent clamping tooling is provided with the locking latches that is made up of gear, tooth bar and automatically terminates device; Landing slab is provided with the horizontal supporting rod that cooperates with the stabilizer bar product, perpendicular supporting rod; Be provided with some thimbles in horizontal supporting rod, the perpendicular supporting rod; Clamping rotating disk (3) turns to and automatically terminates device when the next and come into force, and automatically terminates the top that coming into force of device a little is positioned at transfer mechanism (1) horizontal section, and a position of coming into force that automatically terminates device is provided with clamping rotating disk (3) lockout mechanism.
4. car stabilizer bar quenching according to claim 1 and 2 mechanism is characterized in that an end of described clamping rotating disk (3) hub is connected with drive unit (4).
5. car stabilizer bar quenching according to claim 4 mechanism is characterized in that the other end of described clamping rotating disk (3) hub is provided with hand crank.
6. car stabilizer bar quenching according to claim 1 mechanism is characterized in that the horizontal section of described transfer mechanism (1) is arranged in casing (2), and the lifting section of transfer mechanism (1) is shifted to outside the casing (2) in casing (2).
7. according to claim 1 or 2 or 6 described car stabilizer bar quenching mechanisms, it is characterized in that below that described transfer mechanism (1) is positioned at the outer position of casing is provided with to slip tank (6) that the not end of tank (6) of slipping links to each other with casing (2).
8. according to claim 1 or 2 or 6 described car stabilizer bar quenching mechanisms, it is characterized in that the drive unit and clamping rotating disk (3) the drive unit interlocking of described transfer mechanism (1).
9. car stabilizer bar quenching according to claim 1 and 2 mechanism; It is characterized in that described quenching chute (7) is a skateboard structure; Quenching chute (7) becomes the inclination angle with tank floor, and the lower end of slide type quenching chute (7) is positioned at the top of automatic slag removal machine (5) horizontal section.
10. car stabilizer bar quenching according to claim 1 and 2 mechanism is characterized in that described automatic slag removal machine (5) is provided with tilting section, and the tilting section of automatic slag removal machine (5) is not held and is positioned at outside casing (2) upper edge hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110323322 CN102417963B (en) | 2011-10-22 | 2011-10-22 | Sedan stabilizer bar-quenching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110323322 CN102417963B (en) | 2011-10-22 | 2011-10-22 | Sedan stabilizer bar-quenching mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102417963A true CN102417963A (en) | 2012-04-18 |
| CN102417963B CN102417963B (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110323322 Active CN102417963B (en) | 2011-10-22 | 2011-10-22 | Sedan stabilizer bar-quenching mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN102417963B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534144A (en) * | 2011-11-02 | 2012-07-04 | 杭州钱江弹簧有限公司 | Disc quenching machine for car stabilizer bar |
| CN102703661A (en) * | 2012-04-28 | 2012-10-03 | 杭州钱江弹簧有限公司 | Quenching device of stabilizer bar |
| CN103924050A (en) * | 2014-05-06 | 2014-07-16 | 大连圣洁真空技术开发有限公司 | Pressurized quenching and distortion correcting device for compound steel broach and operating method thereof |
| CN112779392A (en) * | 2021-01-11 | 2021-05-11 | 王修涛 | Intelligent quenching equipment for cast iron |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2490166Y (en) * | 2001-07-24 | 2002-05-08 | 韩志根 | Quenching bath |
| CN101760601A (en) * | 2008-10-27 | 2010-06-30 | 苏州新凌电炉有限公司 | Quenching furnace with workpiece falling buffer device in oil sink |
| CN202359168U (en) * | 2011-10-22 | 2012-08-01 | 杭州钱江弹簧有限公司 | Quenching mechanism for car stabilizer bar |
-
2011
- 2011-10-22 CN CN 201110323322 patent/CN102417963B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2490166Y (en) * | 2001-07-24 | 2002-05-08 | 韩志根 | Quenching bath |
| CN101760601A (en) * | 2008-10-27 | 2010-06-30 | 苏州新凌电炉有限公司 | Quenching furnace with workpiece falling buffer device in oil sink |
| CN202359168U (en) * | 2011-10-22 | 2012-08-01 | 杭州钱江弹簧有限公司 | Quenching mechanism for car stabilizer bar |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534144A (en) * | 2011-11-02 | 2012-07-04 | 杭州钱江弹簧有限公司 | Disc quenching machine for car stabilizer bar |
| CN102703661A (en) * | 2012-04-28 | 2012-10-03 | 杭州钱江弹簧有限公司 | Quenching device of stabilizer bar |
| CN102703661B (en) * | 2012-04-28 | 2013-07-24 | 杭州钱江弹簧有限公司 | Quenching device of stabilizer bar |
| CN103924050A (en) * | 2014-05-06 | 2014-07-16 | 大连圣洁真空技术开发有限公司 | Pressurized quenching and distortion correcting device for compound steel broach and operating method thereof |
| CN103924050B (en) * | 2014-05-06 | 2016-08-17 | 大连圣洁真空技术开发有限公司 | Clad steel broaching tool adding pressure type Cooling Quenching correction torsional deformation device and operational approach |
| CN112779392A (en) * | 2021-01-11 | 2021-05-11 | 王修涛 | Intelligent quenching equipment for cast iron |
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| Publication number | Publication date |
|---|---|
| CN102417963B (en) | 2013-03-20 |
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Denomination of invention: Sedan stabilizer bar-quenching mechanism Effective date of registration: 20150811 Granted publication date: 20130320 Pledgee: Hengfeng bank, Limited by Share Ltd, Hangzhou Chengdong subbranch Pledgor: Qianjiang Spring Co., Ltd. Registration number: 2015330000038 |
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Date of cancellation: 20160119 Granted publication date: 20130320 Pledgee: Hengfeng bank, Limited by Share Ltd, Hangzhou Chengdong subbranch Pledgor: Qianjiang Spring Co., Ltd. Registration number: 2015330000038 |
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Denomination of invention: Sedan stabilizer bar-quenching mechanism Effective date of registration: 20160122 Granted publication date: 20130320 Pledgee: Hengfeng bank, Limited by Share Ltd, Hangzhou Chengdong subbranch Pledgor: Qianjiang Spring Co., Ltd. Registration number: 2016330000002 |
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Address after: 315300 No. 22, No. 78, Hangzhou economic and Technological Development Zone, Hangzhou, Zhejiang Patentee after: Qianjiang spring (Hangzhou) Co., Ltd. Address before: 315300 No. 78, No. 22, Hangzhou economic and Technological Development Zone, Zhejiang Patentee before: Qianjiang Spring Co., Ltd. |