CN104494059B - Hot runner injection molding hot nozzle structure - Google Patents
Hot runner injection molding hot nozzle structure Download PDFInfo
- Publication number
- CN104494059B CN104494059B CN201410777511.4A CN201410777511A CN104494059B CN 104494059 B CN104494059 B CN 104494059B CN 201410777511 A CN201410777511 A CN 201410777511A CN 104494059 B CN104494059 B CN 104494059B
- Authority
- CN
- China
- Prior art keywords
- nozzle
- hot nozzle
- hot
- thermal
- runner
- 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
- 238000001746 injection moulding Methods 0.000 title claims abstract description 13
- 238000005485 electric heating Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 239000011810 insulating material Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/20—Injection nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2737—Heating or cooling means therefor
- B29C2045/2743—Electrical heating element constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2737—Heating or cooling means therefor
- B29C2045/275—Planar heating or cooling elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C2045/2766—Heat insulation between nozzle and mould
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a hot runner injection molding hot nozzle structure, wherein a heat conducting fin is embedded in the side part of a hot nozzle rectangular body, the inner side end surface of a hot nozzle gate is tightly attached to the heat conducting fin, the inner side end surface of the hot nozzle gate is in plane contact with the heat conducting fin, electric heating wires are uniformly distributed around the hot nozzle rectangular body, and the whole hot nozzle gate is horn-shaped, so that the hot nozzle structure has the advantages that (1) the gate is reduced; (2) the layout space between the hot nozzle cavity and the cavity is reduced;the plane heat conduction design is adopted, the hot nozzle pouring gate is in plane contact with the heat conduction sheet, and the heat conduction sheet is in complete contact with the end face of the hot nozzle pouring gate, so that the heat conduction speed is improved to the greatest extent;when the outer wall of the hot nozzle gate is insulated by the insulating material, cold materials are not formed on products at the end face of the gate, so that the heat dissipation phenomenon during heat conduction is avoided, and the quality of the products is improved. Meanwhile, plane contact is arranged on the end face of the hot nozzle, and the heat conducting fin is in surface contact with the end face of the hot nozzle gate, so that the temperature of the runner with the hot nozzle gate is always kept in the moving process.
Description
Technical Field
The invention relates to the technical field of injection molding dies, in particular to a hot runner injection molding hot nozzle structure, and particularly relates to a mechanical structure thereof.
Background
As consumer demand for the appearance of cost products increases, hot runner technology is also becoming increasingly popular in the mold industry. The hot runner device comprises a hot runner for moving high-temperature molten plastic and a hot nozzle rectangular body for controlling the injection of the molten plastic in the hot runner, and the hot nozzle rectangular body controls the injection of the molten plastic in the hot runner into the mold through a hot runner sleeve. The rectangular arrangement type hot runner reduces the arrangement space of products in the die body, and saves the cost in the production process. However, other common circular hot runners occupy a large space of the die body in the quantity of arranged products, the quantity of produced products is small, the die cost is increased, and the production efficiency is reduced.
Disclosure of Invention
The invention aims to provide a hot runner injection molding hot nozzle structure, which aims to prevent the increase of mold cost caused by incapability of increasing hot nozzle pouring gates and the reduction of production yield, and the increase of the number of novel hot runner products, the reduction of 50% of mold manufacturing cost and the improvement of 50% of production efficiency.
In order to achieve the above object, the technical scheme of the present invention is as follows: the utility model provides a hot runner injection moulding hot mouth structure, it includes hot mouth rectangle body, its characterized in that: the heat transfer device is characterized in that the heat conducting sheet is embedded in the side part of the rectangular hot nozzle body, the inner end face of the hot nozzle gate is tightly attached to the heat conducting sheet and is in plane contact with the heat conducting sheet, the electric heating wires are uniformly distributed around the rectangular hot nozzle body, the whole hot nozzle gate is in a horn mouth shape, the inner end face of the hot nozzle gate is a large-diameter end face in the horn mouth shape, the outer end of the hot nozzle gate is a small-diameter end in the horn mouth shape, a hot nozzle gate positioning ring is sleeved outside the middle section of the hot nozzle gate, a hot runner sleeve is arranged on the upper part of the rectangular hot nozzle body, the lower part of the hot runner sleeve is embedded in the rectangular hot nozzle body, a longitudinal hot runner is longitudinally arranged in the hot runner sleeve, and is communicated with transverse hot runners which are transversely distributed in the rectangular hot nozzle body, penetrate through the heat conducting sheet and extend to the small-diameter end of the hot nozzle gate and are communicated with ports of the small-diameter end, the port inner diameter of the small-diameter end is 1mm-3mm, 6 hot nozzle gates are respectively arranged on two sides of the rectangular hot nozzle body, and the hot nozzle gates on two sides are symmetrically distributed.
The invention discloses a hot runner injection molding hot nozzle structure, which is compared with a round hot runner (figure 3) in the prior art, wherein (1) a pouring gate 8 is reduced; (2) the layout space between the hot nozzle cavity and the cavity is reduced; the plane heat conduction design is adopted, the hot nozzle pouring gate is in plane contact with the heat conduction sheet, and the heat conduction sheet is in complete contact with the end face of the hot nozzle pouring gate, so that the heat conduction speed is improved to the greatest extent; when the outer wall of the hot nozzle gate is insulated by the insulating material, cold materials are not formed on products at the end face of the gate, so that the heat dissipation phenomenon during heat conduction is avoided, and the quality of the products is improved. Meanwhile, plane contact is arranged on the end face of the hot nozzle, and the heat conducting fin is in surface contact with the end face of the hot nozzle gate, so that the temperature of the runner with the hot nozzle gate is always kept in the moving process. Therefore, the stability and reliability of the hot runner injection molding device in the production process can be improved, and the maintenance cost of the mold can be reduced.
Drawings
FIG. 1 is a cross-sectional view of the present invention.
FIG. 2 is a schematic diagram of the structure of the present invention.
Fig. 3 is a schematic diagram of a prior art structure.
Wherein:
1. a hot nozzle rectangular body;
2. a hot nozzle gate;
3. a heat conductive sheet;
4. a hot nozzle sprue positioning ring;
5. a hot runner sleeve;
6. an electric heating wire;
7. a heat insulating sheet;
8. a gate;
51. a longitudinal hot runner;
11. and a transverse hot runner.
Description of the embodiments
The invention is further described below with reference to the accompanying drawings.
The invention relates to a hot runner injection molding hot nozzle structure, which comprises a hot nozzle rectangular body 1, and is different from the prior art in that: the heat conducting strip 3 is embedded in the side of the hot nozzle rectangular body 1, the inner side end face of the hot nozzle pouring gate 2 is tightly attached to the heat conducting strip 3, the inner side end face of the hot nozzle pouring gate 2 is in plane contact with the heat conducting strip 3, electric heating wires 6 are uniformly distributed around the hot nozzle rectangular body 1, heat is conducted to the hot nozzle pouring gate through the heat conducting strip 3, the whole hot nozzle pouring gate 2 is in a horn mouth shape, the inner side end face of the hot nozzle pouring gate 2 is a horn mouth-shaped large-diameter end face, the outer end of the hot nozzle pouring gate 2 is a horn mouth-shaped small-diameter end, a hot nozzle pouring gate positioning ring 4 is sleeved outside the middle section of the hot nozzle pouring gate 2, a heat insulating sheet 7 is sleeved inside the hot nozzle pouring gate positioning ring 4, the hot nozzle pouring gate positioning ring 4 and the heat insulating sheet 7 can play a role in heat insulating protection, heat flow loss of the hot nozzle pouring gate is prevented, and the temperature of the hot nozzle pouring gate is effectively guaranteed, and molten plastic is ensured to be injected into a die.
In practical implementation, the upper portion of the rectangular hot nozzle body 1 is provided with a hot runner sleeve 5, the lower portion of the hot runner sleeve 5 is embedded into the rectangular hot nozzle body 1, a longitudinal hot runner 51 is longitudinally arranged in the hot runner sleeve 5, the longitudinal hot runner 51 is communicated with transverse hot runners 11 transversely distributed in the rectangular hot nozzle body 1, the transverse hot runner 11 penetrates through the heat conducting fin 3 and extends to the small-diameter end of the hot nozzle gate 2 and is communicated with a port of the small-diameter end, and the structure of the rectangular hot nozzle body and the hot nozzle gate is designed into a structure which is mainly convenient for reducing space arrangement between hot runner cavities and cavities, reducing mould arrangement space on the body and reducing the manufacturing cost of the mould.
In the specific implementation, the heat conducting strips 3 arranged in a straight line are distributed on two sides of the rectangular hot nozzle body 1, all the heat conducting strips 3 are embedded into the rectangular hot nozzle body 1, a hot nozzle gate 2 is arranged on the surface of each heat conducting strip 3, and the large-diameter end face of the inner side of the hot nozzle gate 2 is in plane contact with the heat conducting strips 3.
Because the hot nozzle pouring gate is designed into a rectangular structure, the heat conducting fin is contacted with the end face of the hot nozzle pouring gate to form surface contact, the flow passage at the outlet of the hot nozzle pouring gate is enlarged, heat conduction is completely contacted at the end face of the hot nozzle pouring gate, the phenomenon of cold glue at the hot nozzle pouring gate is avoided, and the quality of products is ensured. Meanwhile, the hot nozzle sprue locating ring can avoid heat transfer between the runner and the inner cavity in the moving process, and ensures that the heat conducting fin keeps temperature with the hot nozzle sprue all the time in the moving process. Therefore, stability and reliability in the production process of the hot runner injection molding device are also improved.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described above. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (2)
1. The utility model provides a hot runner injection moulding hot nozzle structure, it includes hot nozzle rectangle body (1), its characterized in that: the utility model discloses a thermal nozzle, including a thermal nozzle rectangular body (1), heat conducting strip (3) are embedded to thermal nozzle rectangular body (1) lateral part, thermal conducting strip (3) are hugged closely to the inboard terminal surface of thermal nozzle runner (2) and thermal conducting strip (3) set up, thermal nozzle rectangular body (1) evenly distributed all around has electric heater strip (6), thermal nozzle runner (2) are whole to be horn mouth form, thermal nozzle runner (2)'s inboard terminal surface is horn mouth form's major diameter terminal surface, thermal nozzle runner (2)'s outer end is horn mouth form's minor diameter end, thermal nozzle runner locating ring (4) have been cup jointed in thermal nozzle runner (2) middle section's outside, thermal nozzle locating ring (4) inside has cup jointed insulating sheet (7), thermal nozzle rectangular body (1) upper portion is equipped with hot runner cover (5), in this hot runner cover (5) lower part embedding thermal nozzle rectangular body (1), be equipped with vertical hot runner (51) in this hot runner cover (5) vertically, this vertical hot runner (51) and thermal runner (11) in the thermal nozzle rectangular body (1) transversely distribute's in horizontal cross-direction, thermal runner (11) cross-flow channel (11) that cross-distributes in the thermal nozzle rectangular body (1) cross-connects, thermal nozzle (3) cross-diameter end that is horn mouth form, thermal nozzle (3) cross-diameter end that is 3mm extends to thermal nozzle end (1, thermal nozzle end (3 mm, thermal nozzle end cross-diameter end that is equipped with thermal nozzle end 1, the hot nozzle pouring gates (2) at the two sides are symmetrically distributed.
2. A hot runner injection molding hot nozzle structure as claimed in claim 1, wherein: the heat-conducting fins (3) which are arranged in a straight line are distributed on two sides of the heat-nozzle rectangular body (1), all the heat-conducting fins (3) are embedded into the heat-nozzle rectangular body (1), a heat-nozzle pouring gate (2) is arranged on the surface of each heat-conducting fin (3), and the large-diameter end face of the inner side of the heat-nozzle pouring gate (2) is in plane contact with the heat-conducting fins (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777511.4A CN104494059B (en) | 2014-08-06 | 2014-12-17 | Hot runner injection molding hot nozzle structure |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410382440.8A CN104129029A (en) | 2014-08-06 | 2014-08-06 | Hot runner injection molding hot nozzle structure |
| CN2014103824408 | 2014-08-06 | ||
| CN201410777511.4A CN104494059B (en) | 2014-08-06 | 2014-12-17 | Hot runner injection molding hot nozzle structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104494059A CN104494059A (en) | 2015-04-08 |
| CN104494059B true CN104494059B (en) | 2023-08-18 |
Family
ID=51802013
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410382440.8A Withdrawn CN104129029A (en) | 2014-08-06 | 2014-08-06 | Hot runner injection molding hot nozzle structure |
| CN201410777511.4A Active CN104494059B (en) | 2014-08-06 | 2014-12-17 | Hot runner injection molding hot nozzle structure |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410382440.8A Withdrawn CN104129029A (en) | 2014-08-06 | 2014-08-06 | Hot runner injection molding hot nozzle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN104129029A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109702967A (en) * | 2019-02-15 | 2019-05-03 | 贝普医疗科技有限公司 | A kind of heat conduction structure of hot channel injecting formation |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05309699A (en) * | 1992-05-08 | 1993-11-22 | Olympus Optical Co Ltd | Hot runner mold |
| JPH11240046A (en) * | 1998-02-26 | 1999-09-07 | Seiki Corp | Hot runner system for injection molding |
| CN1520991A (en) * | 2002-11-06 | 2004-08-18 | 标准模具有限公司 | Injection nozzle with planar heater |
| CN201006630Y (en) * | 2006-11-01 | 2008-01-16 | 深圳市港之英模具配件有限公司 | Hot nozzle for injection mold |
| CN201437273U (en) * | 2009-06-30 | 2010-04-14 | 深圳市广诚科技开发有限公司 | Hot runner, hot-runner mould and plug mould |
| CN201544416U (en) * | 2009-12-15 | 2010-08-11 | 深圳市米高科技有限公司 | Side water-entering multi-point hot nozzle |
| KR20110072080A (en) * | 2009-12-22 | 2011-06-29 | 주식회사 동명테크 | Hot runner system with valved three-hole nozzle |
| CN202412606U (en) * | 2011-12-29 | 2012-09-05 | Tcl王牌电器(惠州)有限公司 | Hot runner injection molding hot nozzle structure |
| CN204054487U (en) * | 2014-08-06 | 2014-12-31 | 张林锋 | The hot mouth structure of a kind of hot channel injecting formation |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3988549B2 (en) * | 2002-06-28 | 2007-10-10 | 株式会社青木固研究所 | Injection mold with hot runner mold |
| US8932046B2 (en) * | 2012-03-16 | 2015-01-13 | Mold-Masters (2007) Limited | Edge-gated injection molding apparatus |
-
2014
- 2014-08-06 CN CN201410382440.8A patent/CN104129029A/en not_active Withdrawn
- 2014-12-17 CN CN201410777511.4A patent/CN104494059B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05309699A (en) * | 1992-05-08 | 1993-11-22 | Olympus Optical Co Ltd | Hot runner mold |
| JPH11240046A (en) * | 1998-02-26 | 1999-09-07 | Seiki Corp | Hot runner system for injection molding |
| CN1520991A (en) * | 2002-11-06 | 2004-08-18 | 标准模具有限公司 | Injection nozzle with planar heater |
| CN201006630Y (en) * | 2006-11-01 | 2008-01-16 | 深圳市港之英模具配件有限公司 | Hot nozzle for injection mold |
| CN201437273U (en) * | 2009-06-30 | 2010-04-14 | 深圳市广诚科技开发有限公司 | Hot runner, hot-runner mould and plug mould |
| CN201544416U (en) * | 2009-12-15 | 2010-08-11 | 深圳市米高科技有限公司 | Side water-entering multi-point hot nozzle |
| KR20110072080A (en) * | 2009-12-22 | 2011-06-29 | 주식회사 동명테크 | Hot runner system with valved three-hole nozzle |
| CN202412606U (en) * | 2011-12-29 | 2012-09-05 | Tcl王牌电器(惠州)有限公司 | Hot runner injection molding hot nozzle structure |
| CN204054487U (en) * | 2014-08-06 | 2014-12-31 | 张林锋 | The hot mouth structure of a kind of hot channel injecting formation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104494059A (en) | 2015-04-08 |
| CN104129029A (en) | 2014-11-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210203 Address after: No.14, Xingji Road, Yongxing street, Longwan District, Wenzhou City, Zhejiang Province Applicant after: BERPU MEDICAL TECHNOLOGY Co.,Ltd. Address before: Room 604, building 2, Rong Group, Yongzhong street, Longwan District, Wenzhou City, Zhejiang Province Applicant before: Zhang Linfeng |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No.14, Xingji Road, Yongxing street, Longwan District, Wenzhou City, Zhejiang Province Applicant after: Beipu Medical Technology Co.,Ltd. Address before: No.14, Xingji Road, Yongxing street, Longwan District, Wenzhou City, Zhejiang Province Applicant before: BERPU MEDICAL TECHNOLOGY Co.,Ltd. |
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| GR01 | Patent grant | ||
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