CN110052957A - A kind of double-planet train bistrique - Google Patents
A kind of double-planet train bistrique Download PDFInfo
- Publication number
- CN110052957A CN110052957A CN201910333589.XA CN201910333589A CN110052957A CN 110052957 A CN110052957 A CN 110052957A CN 201910333589 A CN201910333589 A CN 201910333589A CN 110052957 A CN110052957 A CN 110052957A
- Authority
- CN
- China
- Prior art keywords
- bistrique
- gear
- level
- workpiece
- planet
- 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
Links
- 238000005498 polishing Methods 0.000 claims abstract description 25
- 230000003028 elevating effect Effects 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 19
- 230000000694 effects Effects 0.000 abstract description 5
- 239000004575 stone Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/047—Grinding heads for working on plane surfaces
-
- 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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a kind of double-planet train bistriques comprising: polishing bracket;Elevating mechanism connects the top and polishes bracket;Bistrique unit connects the elevating mechanism, and goes up and down under the drive of the elevating mechanism, is polished with the surface to the workpiece being delivered to below bistrique unit.It is for traditional bistrique or single planetary bevel gear system bistrique, it can further realize decelerating through motor under the premise of not increasing volume, and realize the multiple polishing to workpiece, so that workpiece is more evenly ground, grinding effect is thus improved while the grinding speed for greatly improving workpiece and improves product quality.
Description
Technical field
The present invention relates to field of material processings, and in particular to a kind of double-planet train bistrique.
Background technique
Stone material, especially superthin stone have become a kind of widely applied ornament materials.It is required with to stone board
Raising, while raising is also followed by the appearance requirement of the non-using face of stone material, people are badly in need of to the post-job stone material table of fixed thickness
Face such as is polished, is polished at the processing operation.
In the prior art, driving motor is directlyed adopt for the bistrique tool for the stone material that polishes, polishes more connect single bistrique
Operation is carried out, such as application number 201420258855.X " a kind of grinding head mechanism of stone sander " and 201620848649.3
Shown in a kind of " bistrique on the stone edge grinding machine of gantry " specific embodiment.But its for motor demanded power output very
Height, and area of polishing is small, thus causes operating efficiency not high.
Summary of the invention
In view of the above shortcomings of the prior art, the present invention provides a kind of double-planet train bistriques, simple and compact for structure,
For traditional bistrique or single planetary bevel gear system bistrique, motor can be further realized under the premise of not increasing volume and subtracted
Speed, and realize the multiple polishing to workpiece, so that workpiece is more evenly ground, thus in the mill for greatly improving workpiece
Grinding effect, which is improved, while cutting speed improves product quality.
In order to solve the above technical problems, technical solution provided by the invention is as follows:
Provide a kind of double-planet train bistrique comprising: polishing bracket;Elevating mechanism connects the top polishing
Bracket;Bistrique unit connects the elevating mechanism, and goes up and down under the drive of the elevating mechanism, with to being delivered to bistrique
It is polished on the surface of workpiece below unit;The bistrique unit includes: mounting rack, connects the elevating mechanism;Level-one
Outer gear ring is mounted on the mounting rack, and the level-one outer gear ring inner wall is equipped with first gear tooth;Planet carrier, can
Rotation is set to inside the level-one outer gear ring;Driving motor is mounted on institute's mounting rack;Level-one sun gear bistrique,
Institute's driving motor is connected, and can be rotated under the drive of the driving motor, and the outside wall surface of the level-one sun gear bistrique is set
There is second gear tooth, is equipped with polishing material towards the one side of the workpiece;Several secondary planet train bistriques are mounted on described
On planet carrier, and the outside wall surface of each secondary planet train bistrique is equipped with and nibbles with the first gear tooth, second gear tooth
The third gear teeth of conjunction is equipped with polishing material towards the one side of the workpiece.
Preferably, the elevating mechanism includes screw-threaded shaft elevator structure and/or cylinder elevating mechanism.
Preferably, the level-one external tooth loop diameter is 100-300cm.
Preferably, the level-one sun gear bistrique diameter is 20-50cm.
Preferably, the secondary planet train bistrique has 5.
Preferably, each secondary planet train bistrique includes: second level outer gear ring, is mounted on the planet carrier,
And be arranged around the level-one sun gear bistrique, each second level outer gear ring outside wall surface is equipped with the third gear teeth, inner wall is set
There is the 4th gear teeth;Secondary solar gear bistrique is installed on inside the second level outer gear ring, and the secondary solar gear bistrique
Outside wall surface is equipped with the 5th gear teeth, is equipped with polishing material towards the one side of the workpiece;Several secondary planet wheel bistriques are surround
Secondary solar gear bistrique setting, and the outside wall surface of each secondary planet wheel bistrique be equipped with the 4th gear teeth,
6th gear teeth of the 5th gear tooth engagement is equipped with polishing material towards the one side of the workpiece.
Preferably, the second level external tooth loop diameter is 50-80cm.
Preferably, the secondary solar gear bistrique diameter is 20-50cm.
Preferably, the secondary planet wheel bistrique has 4.
Compared with prior art, the double-planet train bistrique in the present invention is relative to relative to traditional bistrique or single planetary bevel gear
It is decelerating through motor can be further realized under the premise of not increasing volume, and realize to the multiple of workpiece for bistrique
Thus polishing improves polishing effect so that workpiece is more evenly ground while the grinding speed for greatly improving workpiece
Fruit improves product quality.
Detailed description of the invention
Fig. 1 is the overall structure figure of double-planet train bistrique in the embodiment of the present invention one;
Fig. 2 is the overall structure figure of secondary planet train bistrique in the embodiment of the present invention one.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one:
As shown in Figure 1, it includes: that polishing bracket (does not show that the planetary gear train bistrique in the present embodiment, which includes: planetary gear train bistrique,
Out);Elevating mechanism (including screw-threaded shaft elevator structure and/or cylinder elevating mechanism, be not shown) connects the polishing bracket;Mill
Head unit connects the elevating mechanism, and goes up and down under the drive of the elevating mechanism, with to being delivered to below bistrique unit
The surface of workpiece polished.In the present embodiment, the workpiece includes concrete product/stone material, generally regular shape
Plate/block structure is including but not limited to cuboid, cylindrical body, positive gengon etc..
Specifically, the bistrique unit includes: U-shaped mounting rack 7031 ', the elevating mechanism is connected;Level-one outer gear ring
7032 ' (diameter 100-300cm, preferably 200cm), are mounted on the mounting rack 7031 ', and the level-one outer gear ring
7032 ' inner walls are equipped with first gear tooth;Planet carrier 7033 ' is rotatably set in the level-one outer gear ring 7032 '
Portion;Driving motor 7034 ' is mounted on the mounting rack 7031 ';Level-one sun gear bistrique 7035 ' (diameter 20-50cm,
Preferably 30cm), institute's driving motor 7034 ' is connected, and can rotate under the drive of the driving motor 7034 ', and described one
The outside wall surface of grade sun gear bistrique 7035 ' is equipped with second gear tooth, is equipped with polishing material (such as Buddha's warrior attendant towards the one side of the workpiece
Stone etc.);Several secondary planet train bistriques 7036 ', are mounted on the planet carrier 7033 ', and each secondary planet
The outside wall surface of train bistrique 7036 ' is equipped with the third gear teeth with the first gear tooth, second gear tooth engagement, described in
The one side of workpiece is equipped with polishing material (such as diamond).
Specifically, as described in Figure 2, each secondary planet train bistrique 7036 ' includes: 801 (diameter of second level outer gear ring
It for 50-80cm, preferably 70cm), is rotatably mounted on the planet carrier 7033 ', and is located at the mounting rack 7031 '
Inside, and be arranged around the level-one sun gear bistrique 7035 ', each 801 outside wall surface of second level outer gear ring is equipped with the third tooth
The gear teeth, inner wall are equipped with the 4th gear teeth;Secondary solar gear bistrique 802 (diameter 20-50cm, preferably 35cm), installation
Inside the second level outer gear ring 801, and the outside wall surface of the secondary solar gear bistrique 7035 is equipped with the 5th gear teeth, towards institute
The one side for stating workpiece is equipped with polishing material (such as diamond);Several secondary planet wheel bistriques 803, around the second level sun
It takes turns bistrique 802 to be arranged, and the outside wall surface of each secondary planet wheel bistrique 803 is equipped with and the 4th gear teeth, the 5th tooth
6th gear teeth of gear teeth meshing is equipped with polishing material (such as diamond) towards the one side of the workpiece.
When work, level-one outer gear ring 7032 ' is fixed, and driving motor 7034 ' drives the level-one sun gear bistrique
7035 ' rotations, and then drive the second level outer gear ring 801 to rotate by gear teeth transmission, so that second level outer gear ring 801 is in rotation
While around level-one sun gear bistrique 7035 ' revolve, further, second level outer gear ring 801 by gear teeth transmission drive two
Grade planetary gear bistrique 803, secondary solar gear bistrique 802 rotate.For single planetary bevel gear system bistrique, the present embodiment
In bistrique unit be secondary planet train bistrique, decelerating through motor can be further realized under the premise of not increasing volume,
And the multiple polishing for passing through level-one sun gear bistrique 7035 ', secondary solar gear bistrique 802, secondary planet wheel bistrique 803, by
This is further improved grinding effect, and keeps grinding speed more preferably uniform.
In conclusion the double-planet train bistrique in the present invention is relative to relative to traditional bistrique or single planetary bevel gear system bistrique
For, decelerating through motor can be further realized under the premise of not increasing volume, and realize the multiple polishing to workpiece, by
This makes workpiece more evenly ground, thus improves grinding effect while the grinding speed for greatly improving workpiece and improves production
Product quality.
It should be noted that, in this document, such as the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of double-planet train bistrique comprising: polishing bracket;Elevating mechanism connects the top and polishes bracket;Bistrique
Unit connects the elevating mechanism, and goes up and down under the drive of the elevating mechanism, with to being delivered to below bistrique unit
It is polished on the surface of workpiece;
It is characterized in that, the bistrique unit includes: mounting rack, the elevating mechanism is connected;Level-one outer gear ring, is mounted on
On the mounting rack, and the level-one outer gear ring inner wall is equipped with first gear tooth;Planet carrier is rotatably set to described
Inside level-one outer gear ring;Driving motor is mounted on institute's mounting rack;Level-one sun gear bistrique connects institute's driving motor, and
It can be rotated under the drive of the driving motor, and the outside wall surface of the level-one sun gear bistrique is equipped with second gear tooth, direction
The one side of the workpiece is equipped with polishing material;Several secondary planet train bistriques, are mounted on the planet carrier, and each institute
The outside wall surface of secondary planet train bistrique is stated equipped with the third gear teeth with the first gear tooth, second gear tooth engagement, court
Polishing material is equipped with to the one side of the workpiece.
2. double-planet train bistrique as described in claim 1, which is characterized in that the elevating mechanism includes screw-threaded shaft elevator structure
And/or cylinder elevating mechanism.
3. double-planet train bistrique as described in claim 1, which is characterized in that the level-one external tooth loop diameter is 100-
300cm。
4. planetary gear train bistrique as described in claim 1, which is characterized in that the level-one sun gear bistrique diameter is 20-
50cm。
5. double-planet train bistrique as described in claim 1, which is characterized in that the secondary planet train bistrique has 5.
6. double-planet train bistrique as described in claim 1, which is characterized in that each secondary planet train bistrique packet
Include: second level outer gear ring is mounted on the planet carrier, and is arranged around the level-one sun gear bistrique, each second level external tooth
Ring outer wall face is equipped with the third gear teeth, inner wall is equipped with the 4th gear teeth;Secondary solar gear bistrique is installed on described two
Inside grade outer gear ring, and the outside wall surface of the secondary solar gear bistrique is equipped with the 5th gear teeth, towards setting on one side for the workpiece
There is polishing material;Several secondary planet wheel bistriques are arranged around the secondary solar gear bistrique, and each secondary planet
The outside wall surface of bistrique is taken turns equipped with the 6th gear teeth with the 4th gear teeth, the 5th gear tooth engagement, towards the workpiece
It is equipped with polishing material on one side.
7. double-planet train bistrique as claimed in claim 6, which is characterized in that the second level external tooth loop diameter is 50-80cm.
8. double-planet train bistrique as claimed in claim 6, which is characterized in that the secondary solar gear bistrique diameter is 20-
50cm。
9. planetary gear train bistrique as claimed in claim 6, which is characterized in that the secondary planet wheel bistrique has 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910333589.XA CN110052957B (en) | 2019-04-24 | 2019-04-24 | Double-planetary-gear-train grinding head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910333589.XA CN110052957B (en) | 2019-04-24 | 2019-04-24 | Double-planetary-gear-train grinding head |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110052957A true CN110052957A (en) | 2019-07-26 |
CN110052957B CN110052957B (en) | 2021-05-21 |
Family
ID=67320393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910333589.XA Active CN110052957B (en) | 2019-04-24 | 2019-04-24 | Double-planetary-gear-train grinding head |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110052957B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112476094A (en) * | 2020-11-26 | 2021-03-12 | 灵璧县德军家具制造有限公司 | Wooden desktop dustproof grinding and polishing equipment and using method thereof |
CN112992472A (en) * | 2021-03-03 | 2021-06-18 | 华北理工大学 | Demagnetization device for computer information storage |
CN114161243A (en) * | 2021-12-16 | 2022-03-11 | 深圳市爱善天使电子商务有限公司 | Wall grinds paper-back edition and puts for building engineering |
CN114473667A (en) * | 2022-04-18 | 2022-05-13 | 江苏鑫美新材料科技有限公司 | Metal clad sheet equipment of polishing |
CN114523353A (en) * | 2022-02-15 | 2022-05-24 | 陈霄 | Planetary gear train anti-vibration grinding head device for stone plane grinding |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1254634A (en) * | 1999-08-23 | 2000-05-31 | 张平宽 | Double-planetary type tumbling and polishing machine |
AU2003219306A1 (en) * | 2003-03-28 | 2004-10-18 | The Technology Partnership Plc | Rotary work tool with orbiting planetary gears containing eccentric axes for the attachment of polishing or sanding platens |
RU2268132C1 (en) * | 2004-07-30 | 2006-01-20 | Общество с ограниченной ответственностью "Торговый Дом "КВАРЦ" | Poly-planetary machine for grinding, glossing and polishing floor |
CN1829586A (en) * | 2003-05-30 | 2006-09-06 | 雷姆技术公司 | Superfinishing large planetary gear systems |
CN105058216A (en) * | 2015-08-24 | 2015-11-18 | 浙江湖磨抛光磨具制造有限公司 | Multi-stage transmission type polisher |
CN108500820A (en) * | 2018-05-31 | 2018-09-07 | 卢德慧 | Bathroom product polishing method and the automatic bathroom polishing machine for implementing this method |
CN108608274A (en) * | 2018-06-12 | 2018-10-02 | 常州市润昌光电科技有限公司 | A kind of ultra-precision continuous polishing machine |
CN108747668A (en) * | 2018-05-26 | 2018-11-06 | 芜湖英特杰智能科技有限公司 | A kind of auto parts machinery processing grinding device |
CN208196530U (en) * | 2018-03-12 | 2018-12-07 | 深圳市裕展精密科技有限公司 | Planetary gear rotating mechanism and surface processing device |
CN109505928A (en) * | 2018-12-30 | 2019-03-22 | 苏州富强科技有限公司 | A kind of secondary planetary gear transmission mechanism for 3D bend glass polishing machine |
-
2019
- 2019-04-24 CN CN201910333589.XA patent/CN110052957B/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1254634A (en) * | 1999-08-23 | 2000-05-31 | 张平宽 | Double-planetary type tumbling and polishing machine |
AU2003219306A1 (en) * | 2003-03-28 | 2004-10-18 | The Technology Partnership Plc | Rotary work tool with orbiting planetary gears containing eccentric axes for the attachment of polishing or sanding platens |
CN1829586A (en) * | 2003-05-30 | 2006-09-06 | 雷姆技术公司 | Superfinishing large planetary gear systems |
RU2268132C1 (en) * | 2004-07-30 | 2006-01-20 | Общество с ограниченной ответственностью "Торговый Дом "КВАРЦ" | Poly-planetary machine for grinding, glossing and polishing floor |
CN105058216A (en) * | 2015-08-24 | 2015-11-18 | 浙江湖磨抛光磨具制造有限公司 | Multi-stage transmission type polisher |
CN208196530U (en) * | 2018-03-12 | 2018-12-07 | 深圳市裕展精密科技有限公司 | Planetary gear rotating mechanism and surface processing device |
CN108747668A (en) * | 2018-05-26 | 2018-11-06 | 芜湖英特杰智能科技有限公司 | A kind of auto parts machinery processing grinding device |
CN108500820A (en) * | 2018-05-31 | 2018-09-07 | 卢德慧 | Bathroom product polishing method and the automatic bathroom polishing machine for implementing this method |
CN108608274A (en) * | 2018-06-12 | 2018-10-02 | 常州市润昌光电科技有限公司 | A kind of ultra-precision continuous polishing machine |
CN109505928A (en) * | 2018-12-30 | 2019-03-22 | 苏州富强科技有限公司 | A kind of secondary planetary gear transmission mechanism for 3D bend glass polishing machine |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112476094A (en) * | 2020-11-26 | 2021-03-12 | 灵璧县德军家具制造有限公司 | Wooden desktop dustproof grinding and polishing equipment and using method thereof |
CN112992472A (en) * | 2021-03-03 | 2021-06-18 | 华北理工大学 | Demagnetization device for computer information storage |
CN114161243A (en) * | 2021-12-16 | 2022-03-11 | 深圳市爱善天使电子商务有限公司 | Wall grinds paper-back edition and puts for building engineering |
CN114161243B (en) * | 2021-12-16 | 2022-10-21 | 深圳市爱善天使电子商务有限公司 | A wall leveling device for construction engineering |
CN114523353A (en) * | 2022-02-15 | 2022-05-24 | 陈霄 | Planetary gear train anti-vibration grinding head device for stone plane grinding |
CN114473667A (en) * | 2022-04-18 | 2022-05-13 | 江苏鑫美新材料科技有限公司 | Metal clad sheet equipment of polishing |
Also Published As
Publication number | Publication date |
---|---|
CN110052957B (en) | 2021-05-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110052957A (en) | A kind of double-planet train bistrique | |
CN109968194A (en) | A kind of planetary gear train bistrique | |
CN101327568A (en) | High-efficient stable polishing-grinding apparatus | |
CN106002526B (en) | A kind of two-sided deburring and polishing all-in-one machine | |
CN210906363U (en) | Waste recovery device for ceramic production line | |
CN107471020A (en) | A kind of gear teeth burr polishing device | |
CN201227760Y (en) | High efficiency stable polishing grinding attachment | |
CN101602180A (en) | A kind of scraping efficiently calmed down thick device | |
CN205817498U (en) | Two-sided deburring and polishing all-in-one | |
CN207309674U (en) | One kind efficiently clears off machine | |
CN201446468U (en) | High-efficiency strike-off thicknessing device | |
CN2059389U (en) | Grinding machine with planets oscillation for grinding granite bloke | |
CN109176300B (en) | Single-motor driving system for grinding mechanism of silicon wafer double-side grinding machine | |
CN218947354U (en) | Spare part processing tipping arrangement that polishes | |
CN217370782U (en) | Grinding device for gear machining | |
CN210223694U (en) | Zinc oxide resistance card grinding disc device | |
CN209868258U (en) | Sweep ray apparatus | |
CN103434014B (en) | The production system of black tortoise stone bowl tableware | |
CN208679353U (en) | A kind of Fluorite pellet processing ball mill with decrease of noise functions | |
CN209156020U (en) | A kind of planet mill tube for ball mill | |
CN211439381U (en) | Multi-station crystal grinding machine | |
CN209256526U (en) | A kind of packing machine reclaiming plate casting grinding machine | |
CN206180494U (en) | All -purpose cable device of peeling | |
CN210279286U (en) | Grinding device is smashed to gear | |
CN215357794U (en) | Multi-station crystal grinding machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A dual planetary gear grinding head Effective date of registration: 20231122 Granted publication date: 20210521 Pledgee: Zhejiang Hecheng Rural Commercial Bank Co.,Ltd. Pledgor: JIAXING ZHIHUA MACHINERY Co.,Ltd. Registration number: Y2023980066834 |