CN105921622A - Mold for manufacturing heat sink with long and short cooling fins - Google Patents
Mold for manufacturing heat sink with long and short cooling fins Download PDFInfo
- Publication number
- CN105921622A CN105921622A CN201610400595.9A CN201610400595A CN105921622A CN 105921622 A CN105921622 A CN 105921622A CN 201610400595 A CN201610400595 A CN 201610400595A CN 105921622 A CN105921622 A CN 105921622A
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- CN
- China
- Prior art keywords
- knife
- edge
- fin
- tablet
- mould
- 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.)
- Granted
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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
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- 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
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/04—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of sheet metal
Abstract
The invention discloses a mold for manufacturing a heat sink with long and short cooling fins. The mold for manufacturing the heat sink with the long and short cooling fins comprises an upper mold and a lower mold, wherein a punch component is arranged at the bottom of the upper mold; the lower mold comprises a guide track, knife edges, a bending component and a fastening component; the guide track is a channel formed by two rows of buoyancy lift guiding pins; the knife edges comprise a first knife edge, a second knife edge, a third knife edge, a fourth knife edge and a fifth knife edge; the first knife edge, the second knife edge, the third knife edge, the bending component, the fourth knife edge, the fifth knife edge and the fastening component are successively arranged in the guide track; and the shape and the position of the punch component are matched with the shapes and the positions of the knife edges. By the mold, the long and short cooling fins can be machined, produced and formed simultaneously, the required heat sink is machined and formed at a time, the precision of the heat sink is improved, the capacity is improved, and the reject ratio of the product is reduced.
Description
Technical field
The present invention relates to the preparation field of fin, more particularly to the mould of a kind of radiator for preparation with length fin.
Background technology
Radiator refers to shift the heat that machinery or other utensils produce in the course of the work in time to avoid affecting its device normally worked or instrument.In actual production, need to produce the fin by two kinds of length is inconsistent and mutually fasten the radiator formed.
The method preparing this radiator at present in industry has two kinds: one to be to utilize two kinds of moulds, is combined after long fin and short fin punch process respectively again；Two is that a kind of for utilization mould is produced long and short two kinds of fin simultaneously, but short fin needs the company of utilization, and tablet is attached, described company's tablet is to connect fin and material strip in traditional moulds technology, for ensureing size and manufacturability, design for increasing intensity, it is unwanted in the product, finally needs excision.But long fin first produced by described existing mould, regeneration output connects the short fin having even tablet, and connecting portion to even tablet and fin carries out pre-thrusting on mould, finally have no progeny and long fin carries out fastening the radiator needed for being formed by manually even tablet being broken.
Two kinds of above methods are both needed to carry out secondary operations, and processing technology is loaded down with trivial details, artificial and time cost height, it is impossible to ensure precision and the qualification rate of product.
Summary of the invention
Based on problem above, it can be radiator by length fin one-shot forming that the present invention provides a kind of, and efficiency is high, and mould is prepared by the automatization that precision is high, and concrete technical scheme is as follows:
A kind of mould of the radiator for preparation with length fin, it is characterised in that: described mould includes upper die and lower die；It is provided with punch member bottom described upper mold；Described lower mold includes two row's lifter guide pins, guide rail, the edge of a knife, bending component and locked part；Described guide rail is the passage that two row's lifter guide pins are formed；Described lifter guide pin is configured with positioning needle, and described positioning needle, for inserting the hole, location on tablet, makes material strip not shift；The described edge of a knife includes first edge of a knife, second edge of a knife, the 3rd edge of a knife, the 4th edge of a knife and the 5th edge of a knife；Described first edge of a knife, second edge of a knife, the 3rd edge of a knife, bending component, the 4th edge of a knife, the 5th edge of a knife and locked part are sequentially positioned in described guide rail successively；Shape and the position of described punch member match with the edge of a knife；Described guide rail passes through for tablet；Described punch member carries out the stamping-out of tablet for matching with the edge of a knife；The first described edge of a knife is for die-cut buckle on tablet；The second described edge of a knife is for the company's of punching out tablet on tablet；The 3rd described edge of a knife is for punching out fin on tablet；The 4th described edge of a knife, for the die-cut connection connected between tablet and fin, disconnects fin and the connection connected between tablet；The 5th described edge of a knife is for the connection between die-cut fin and waste material limit；Described bending component is for the bending of buckle；Described locked part is the fastening of buckle between every fin, forms radiator.
Further, described upper mold is provided with connection post.
Further, described lower mold is provided with connecting hole；The described size position connecting post and the size position of connecting hole match, the connection between upper die and lower die.
Further, described mould also includes electrical control gear and punching press switching cylinder, and electrical control gear is connected with punching press switching cylinder；Described punching press switching cylinder is arranged on the side of upper mold, for controlling the work of the edge of a knife, thus switches different job steps, it is achieved the switching of long and short fin and the switching of the work step of die-cut diverse location.
Further, it is provided with discharging opening bottom described locked part.
Further, the direction of described discharging opening and the angle of horizontal plane are obtuse angle, in order to product is tiltedly discharged material and fastens.
Further, described electrical control gear being additionally provided with enumerator, described enumerator is for accurately calculating long fin and the sheet number of short fin.
The mould of the present invention has the advantage that
1. one-shot forming: this mould, compared to prior art, adds the edge of a knife of die-cut even tablet, even will excise by tablet, and reduce manual operation, improving production efficiency while ensureing Product Precision；
Produce two kinds of products of long and short fin: utilize this mould same tablet can be produced as long and short fin the most simultaneously simultaneously；
3., by discharging opening is set to inclined plane, make product can tiltedly discharge material when discharging fastens and complete to fasten, there is automatic guidance function so that it is fasten point and accurately coincide.
The present invention the most additionally discloses a kind of method preparing this radiator, and described method comprises the following steps:
A., the tablet of required processing is sent into the charging aperture of mould, and the location edge of a knife of lower mold matches, at tablet stamping-out with the punch member matched with the location edge of a knife being arranged on bottom upper mold so that it is forming hole, location, the waste material that step a produces is discharged from positioning the edge of a knife；
Tablet is carried out correcting location by b. described lifter guide pin and positioning needle；
C. electrical control gear controls punching press switching cylinder and starts first edge of a knife and the drift mated with first edge of a knife, and after both coordinate the buckle processing stamping-out formation fin on tablet, first edge of a knife and drift exit, and the waste material that step c produces is discharged from first edge of a knife；
D. after button point machines, whether the type selecting according to converted products starts second edge of a knife and the drift mated with second edge of a knife, if adding section chief's fin then without starting, if processing short fin, then start second edge of a knife and drift, being processed to form company's tablet with short fin on tablet, the waste material that step e produces is discharged from second edge of a knife；
F. punching press switching cylinder starts the 3rd edge of a knife and the drift mated with the 3rd edge of a knife, punches out fin on tablet, and the waste material that step f produces is discharged from the 3rd edge of a knife；
G. buckle is carried out bending by bending component；
H. punching press switching cylinder starts the 4th edge of a knife and the drift mated with the 4th edge of a knife, and the connection connected between tablet and fin is cut off by the 4th described edge of a knife, and the company's of making tablet separates with fin, and the waste material that step h produces i.e. connects tablet and discharges from the 4th edge of a knife；
I. the 5th edge of a knife on the locked part described in the startup of punching press switching cylinder, the connection between fin and waste material limit is cut off by the 5th edge of a knife, forms independent fin, and the waste material limit that step i produces is discharged from the waste outlet of mould；
J. the buckle between every fin is fastened by locked part one by one, forms radiator；
K. the enumerator on electrical control gear calculates long fin and the quantity of short fin of required converted products, and the product being up to quantity carries out discharging by the discharging opening on mould.
Preparation method whole process disclosed by the invention uses automated production, directly even will excise by tablet, it is not necessary to extra manual operation, and further increase the precision of product, be effectively improved product production capacity on mould.
Accompanying drawing explanation
Fig. 1 is the structural representation of the radiator of the prior art of the present embodiment 1.
Fig. 2 is the structural representation of the radiator of the present embodiment 1.
Fig. 3 is the making structural representation of the short fin of the prior art of the present embodiment 1.
Fig. 4 is the structural representation of the mould for preparing described radiator of the present embodiment 1.
The structural representation of the material strip that described step i that Fig. 5 is the present embodiment 1 is formed.
1 is upper mold；2 is lifter guide pin；3 is first edge of a knife；4 is second edge of a knife；5 is lower mold；6 is the 3rd edge of a knife；7 is bending component；8 is the 4th edge of a knife；9 is connecting hole；10 is locked part；11 for connecting post；12 die-cut cylinders；13 is fin；14 is even tablet；15 is buckle；16 is waste material limit；17 is hole, location.
Detailed description of the invention
The present invention is explained in further detail below in conjunction with accompanying drawing and embodiment for the ease of it will be appreciated by those skilled in the art that.
Embodiment
1
Radiator as depicted in figs. 1 and 2, described radiator is carried out fastening by two kinds of different fin of length and forms；During the fin that preparation length differs, would generally the company's of use tablet in the making of short fin；Described company's tablet is used as to connect fin and material strip in traditional moulds technology, for ensureing size and the technique of product, designs for increasing intensity, but the most unwanted at product, is fractureed by even tablet removal so also needing to increase operation.
As it is shown on figure 3, the method for traditional company of removal tablet is typically first its punching press to be prejudged, more manually broken disconnected form short fin after, then it is fastened with long fin, the product needed for formation.
As shown in Figure 4, present embodiment discloses and a kind of one-shot forming can have the mould of radiator of length fin；The mould of preparing of described radiator includes electrical control gear, upper die and lower die；The side of described upper mold is provided with punching press switching cylinder, and the bottom of upper mold is additionally provided with connection post；Described electrical control gear is for controlling the operation of mould.
Described lower mold includes connecting hole, guide rail, the edge of a knife, bending component and locked part；Described guide rail is the passage that two row's lifter guide pins are formed；Described lifter guide pin is configured with positioning needle, and described positioning needle, for inserting the hole, location on tablet, makes material strip not shift；The size position of described connecting hole matches with the size position connecting post of upper mold；The described edge of a knife includes first edge of a knife, second edge of a knife, the 3rd edge of a knife, the 4th edge of a knife and the 5th edge of a knife；Described first edge of a knife, second edge of a knife, the 3rd edge of a knife, bending component, the 4th edge of a knife, the 5th edge of a knife and locked part are sequentially positioned in described passage successively；Shape and the position of described punch member match with the described edge of a knife.
Wherein said lifter guide pin, for the buoyance lift of tablet, guide and de-material, is responsible for that tablet floats also correcting spacing, is also responsible for the location of the conveying to tablet；Described electrical control gear is for controlling the operation of mould；Described guide rail passes through for tablet；Described punch member carries out the stamping-out of tablet for matching with the edge of a knife；The first described edge of a knife forms the buckle of fin for die-cut tablet；The second described edge of a knife forms it into even tablet for die-cut tablet；The 3rd described edge of a knife, for opening die-cut for each fin, makes each fin separate；The 4th described edge of a knife, for die-cut even tablet and the connecting portion of fin, disconnects fin and the connection connected between tablet；The 5th described edge of a knife is for cutting off the connection between fin and waste material limit；Described bending component is for longitudinal bending of fin buckle；Described locked part fastening between every fin.
The side of described upper mold is additionally provided with punching press switching cylinder, for controlling the work of the edge of a knife, thus switches different job steps, it is achieved the switching of long and short fin and the switching of the work step of die-cut diverse location.
Described bending component for by the edge of fin both sides according to the requirement bending of required product, the present embodiment uses 90 bendings, described edge to match with the width of buckle.
Described locked part is for the fin machined by the 5th edge of a knife, snap together one by one, and the fin fastened is passed through discharge hole for discharge, described discharging opening is arranged on the bottom of locked part, the direction of described outlet for product and the angle of horizontal plane are obtuse angle, in order to product is tiltedly discharged material and fastens；This locked part has the function of guiding automatically, makes the point of the fastening between sheet and sheet accurately coincide.
It is additionally provided with enumerator, for accurately calculating long fin and the sheet number of short fin on described electrical control gear.
The mould of the present embodiment simultaneously processing can form long and short fin, and is processed and formed at one time as required radiator, and described radiator is by forming that fin different in size mutually fastens.And high through the precision of the radiator of this mould processing, reduce the fraction defective of product, improve the working (machining) efficiency of product；This mould also has counting and the function of guiding automatically automatically.
Also disclosing the method that more than one described mould preparations have the radiator of length fin in the present embodiment, the method step is specific as follows:
A., the tablet of required processing is sent into the charging aperture of mould, and the location edge of a knife of lower mold matches, at tablet stamping-out with the punch member matched with the location edge of a knife being arranged on bottom upper mold so that it is forming hole, location, the waste material that step a produces is discharged from positioning the edge of a knife；
Tablet is carried out correcting location by b. described lifter guide pin and positioning needle；
C. electrical control gear controls punching press switching cylinder and starts first edge of a knife and the drift mated with first edge of a knife, and after both coordinate the buckle processing stamping-out formation fin on tablet, first edge of a knife and drift exit, and the waste material that step c produces is discharged from first edge of a knife；
D. after button point machines, whether the type selecting according to converted products starts second edge of a knife and the drift mated with second edge of a knife, if adding section chief's fin then without starting, if processing short fin, then start second edge of a knife and drift, being processed to form company's tablet with short fin on tablet, the waste material that step e produces is discharged from second edge of a knife；
F. punching press switching cylinder starts the 3rd edge of a knife and the drift mated with the 3rd edge of a knife, punches out fin on tablet, and the waste material that step f produces is discharged from the 3rd edge of a knife；
G. buckle is carried out bending by bending component；
H. punching press switching cylinder starts the 4th edge of a knife and the drift mated with the 4th edge of a knife, and the connection connected between tablet and fin is cut off by the 4th described edge of a knife, and the company's of making tablet separates with fin, and the waste material that step h produces i.e. connects tablet and discharges from the 4th edge of a knife；
I. the 5th edge of a knife on the locked part described in the startup of punching press switching cylinder, the connection between fin and waste material limit is cut off by the 5th edge of a knife, forms independent fin, and the waste material limit that step i produces is discharged from the waste outlet of mould；
J. the buckle between every fin is fastened by locked part one by one, forms radiator；
K. the enumerator on electrical control gear calculates long fin and the quantity of short fin of required converted products, and the product being up to quantity carries out discharging by the discharging opening on mould.
The present embodiment the most additionally discloses the method utilizing described mould to prepare the radiator with length fin, the method whole process uses automated production, directly will even excise by tablet, it is not necessary to extra manual operation on mould, further increase the precision of product, be effectively improved product production capacity.
Being more than the wherein specific implementation of the present invention, it describes more concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these obvious alternative forms belong to protection scope of the present invention.
Claims (10)
1. the mould of a radiator for preparation with length fin, it is characterised in that: described mould includes upper die and lower die；It is provided with punch member bottom described upper mold；Described lower mold includes guide rail, the edge of a knife, bending component and locked part；Described guide rail is the passage that two row's lifter guide pins are formed；The described edge of a knife includes first edge of a knife, second edge of a knife, the 3rd edge of a knife, the 4th edge of a knife and the 5th edge of a knife；Described first edge of a knife, second edge of a knife, the 3rd edge of a knife, bending component, the 4th edge of a knife, the 5th edge of a knife and locked part are successively set in described guide rail；Shape and the position of described punch member match with the described edge of a knife；
Described guide rail passes through for tablet；
Described punch member carries out the stamping-out of tablet for matching with the edge of a knife；
The first described edge of a knife is for punching out buckle on tablet；
The second described edge of a knife is for the company's of punching out tablet on tablet；
The 3rd described edge of a knife is for punching out fin on tablet；
The 4th described edge of a knife, for the die-cut connection connected between tablet and fin, disconnects fin and the connection connected between tablet；
The 5th described edge of a knife is for the connection between die-cut fin and waste material limit；
Described bending component is for the bending of buckle；
Described locked part, for fastening buckle between every fin, forms radiator.
The mould of the radiator for preparation with length fin the most according to claim 1, it is characterised in that: the described edge of a knife also includes positioning the hole edge of a knife, for punching out hole, location on tablet.
The mould of the radiator for preparation with length fin the most according to claim 1, it is characterized in that: described lifter guide pin also includes positioning needle, described positioning needle is arranged on bottom upper mold, for inserting in the hole, location on tablet, carries out the location of tablet.
The mould of the radiator for preparation with length fin the most according to claim 1, it is characterised in that: described upper mold is provided with connection post.
The mould of the radiator for preparation with length fin the most according to claim 4, it is characterised in that: described lower mold is provided with connecting hole.
The mould of the radiator for preparation with length fin the most according to claim 5, it is characterised in that: the described size position connecting post and the size position of connecting hole match.
The mould of the radiator for preparation with length fin the most according to claim 1, it is characterised in that: described mould also includes electrical control gear and punching press switching cylinder, and electrical control gear is connected with punching press switching cylinder；Described punching press switching cylinder is arranged on the side of upper mold, for controlling the work of the edge of a knife.
The mould of the radiator for preparation with length fin the most according to claim 1, it is characterised in that: it is provided with discharging opening bottom described locked part.
The mould of the radiator for preparation with length fin the most according to claim 8, it is characterised in that: the direction of described discharging opening and the angle of horizontal plane are obtuse angle.
The mould of the radiator for preparation with length fin the most according to claim 1, it is characterised in that: being additionally provided with enumerator on described electrical control gear, described enumerator is for accurately calculating long fin and the sheet number of short fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400595.9A CN105921622B (en) | 2016-06-08 | 2016-06-08 | It is used to prepare the mold of the radiator with length cooling fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400595.9A CN105921622B (en) | 2016-06-08 | 2016-06-08 | It is used to prepare the mold of the radiator with length cooling fin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105921622A true CN105921622A (en) | 2016-09-07 |
| CN105921622B CN105921622B (en) | 2018-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610400595.9A Active CN105921622B (en) | 2016-06-08 | 2016-06-08 | It is used to prepare the mold of the radiator with length cooling fin |
Country Status (1)
| Country | Link |
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| CN (1) | CN105921622B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108057775A (en) * | 2018-01-16 | 2018-05-22 | 深圳市金洲精工科技股份有限公司 | A kind of continuous progressive die of closing waist type cooling fin |
| CN114210828A (en) * | 2021-12-10 | 2022-03-22 | 昆山江鸿精密电子有限公司 | Manufacturing process of radiating fin die with inverse buckle piece |
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| JPH10134928A (en) * | 1996-11-01 | 1998-05-22 | Nikko Kinzoku Kk | Manufacture of contact for electronic equipment, manufacturing device and continuous stamped contact belt body to be used therefor |
| CN201127158Y (en) * | 2007-09-29 | 2008-10-01 | 能缇精密工业股份有限公司 | Radiating device capable of prearranged with wind gap structure |
| CN102327961A (en) * | 2011-05-31 | 2012-01-25 | 昆山能缇精密电子有限公司 | Module for automatically riveting radiating fins |
| CN105057487A (en) * | 2015-08-13 | 2015-11-18 | 歌尔声学股份有限公司 | Automatic loading equipment and method of hardware molds |
| CN205217790U (en) * | 2015-12-18 | 2016-05-11 | 芜湖市丰德科技有限公司 | Fin continuous stamping die |
| CN205684583U (en) * | 2016-06-08 | 2016-11-16 | 惠州智科实业有限公司 | There is the mould of the radiator of length fin for preparation |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10134928A (en) * | 1996-11-01 | 1998-05-22 | Nikko Kinzoku Kk | Manufacture of contact for electronic equipment, manufacturing device and continuous stamped contact belt body to be used therefor |
| CN201127158Y (en) * | 2007-09-29 | 2008-10-01 | 能缇精密工业股份有限公司 | Radiating device capable of prearranged with wind gap structure |
| CN102327961A (en) * | 2011-05-31 | 2012-01-25 | 昆山能缇精密电子有限公司 | Module for automatically riveting radiating fins |
| CN105057487A (en) * | 2015-08-13 | 2015-11-18 | 歌尔声学股份有限公司 | Automatic loading equipment and method of hardware molds |
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| CN205684583U (en) * | 2016-06-08 | 2016-11-16 | 惠州智科实业有限公司 | There is the mould of the radiator of length fin for preparation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108057775A (en) * | 2018-01-16 | 2018-05-22 | 深圳市金洲精工科技股份有限公司 | A kind of continuous progressive die of closing waist type cooling fin |
| CN108057775B (en) * | 2018-01-16 | 2024-01-19 | 深圳市金洲精工科技股份有限公司 | Continuous progressive die for waisted radiating fin |
| CN114210828A (en) * | 2021-12-10 | 2022-03-22 | 昆山江鸿精密电子有限公司 | Manufacturing process of radiating fin die with inverse buckle piece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105921622B (en) | 2018-07-31 |
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Address after: 516120 Luo Yang Zhen Yi He Yun Bu Cun Da Long Wei Zu Miao, BOLUO County, Huizhou City, Guangdong Province Patentee after: GUANGDONG ZHIKE JINGCHUANG TECHNOLOGY Co.,Ltd. Address before: 516120 Luo Yang Zhen Yi He Yun Bu Cun Da Long Wei Zu Miao, BOLUO County, Huizhou City, Guangdong Province Patentee before: THERMAL GROUP TECHNOLOGY (HUIZHOU) Co.,Ltd. |
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Effective date of registration: 20210907 Address after: No.22, pengjia'ao, Zhuxia village, Taimushan Town, Fuding City, Ningde City, Fujian Province Patentee after: Lin Zefeng Address before: 516120 Luo Yang Zhen Yi He Yun Bu Cun Da Long Wei Zu Miao, BOLUO County, Huizhou City, Guangdong Province Patentee before: GUANGDONG ZHIKE JINGCHUANG TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20211021 Address after: No. 1691, Xinghu Avenue, development zone, Nantong City, Jiangsu Province, 226000 Patentee after: Nantong Xinfei Precision Machinery Engineering Co.,Ltd. Address before: No.22, pengjia'ao, Zhuxia village, Taimushan Town, Fuding City, Ningde City, Fujian Province Patentee before: Lin Zefeng |
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