CN104841878A - Crawler sand mixer - Google Patents
Crawler sand mixer Download PDFInfo
- Publication number
- CN104841878A CN104841878A CN201510158814.2A CN201510158814A CN104841878A CN 104841878 A CN104841878 A CN 104841878A CN 201510158814 A CN201510158814 A CN 201510158814A CN 104841878 A CN104841878 A CN 104841878A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- frame
- belt pulley
- iii
- sand
- 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
- 239000004576 sand Substances 0.000 title abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 238000007599 discharging Methods 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 239000000428 dust Substances 0.000 abstract description 6
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 238000007528 sand casting Methods 0.000 abstract description 2
- 238000005266 casting Methods 0.000 description 17
- 239000000843 powder Substances 0.000 description 15
- 239000011230 binding agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
- B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
- B22C5/0472—Parts; Accessories; Controlling; Feeding; Discharging; Proportioning
Abstract
The invention relates to the technical field of sand casting, and concretely relates to a crawler sand mixer. The crawler sand mixer comprises a frame, a transmission device and a sand mixing device, the upper portion of the frame is provided with a material inlet, a material outlet is arranged at the front portion of the frame, the material inlet and the material outlet are provided with movable baffle plates respectively, the movable baffle plates are used for closing the material inlet and the material outlet to effectively prevent diffusion of sands and dusts in the sand mixing process, the transmission device is positioned at the right side of the frame, the transmission device is connected with the frame through a bearing with a seat, and the transmission device is used for providing and transmitting power; and the sand mixing device is positioned in the frame, and is wound on the transmission device, and the sand mixing device is used for mixing foundry sand. The crawler sand mixer solves the sand sticking and dust removing problems in the sand mixing process, and has the advantages of rapid and uniform sand mixing, and very convenient charging and discharging.
Description
Technical field
The present invention relates to sand casting technical field, is a kind of crawler type puddle mixer specifically.
Background technology
Sand mixer for casting is the mixed husky equipment generally adopted in casting field, and puddle mixer generally has following function: old sand, fresh sand, moulding sand binder and auxiliary material are mixed; Binding agent and auxiliary material is made to be uniformly distributed and to be effectively coated on sand grain surface.Following problem is there will be in mixed husky process:
1. casting model powder easily sticks on puddle mixer in mixed process, causes mixed husky uneven, reduces mixed husky efficiency, reduce further productivity ratio, add energy consumption;
2. existing puddle mixer mostly is opened type, can produce more sand and dust, greatly have impact on the working environment of workman in mixed husky process; Be unfavorable for that workman works;
3. existing puddle mixer discharging opening is less, can reduce mixed husky gross efficiency, be unfavorable for the requirement that factory produces fast when discharging.
Summary of the invention
In order to make up the deficiencies in the prior art, the invention provides a kind of crawler type puddle mixer, sticky husky problem and dust removal problem in mixed husky process can be solved, and mixed husky Quick uniform, loading and unloading are very convenient.
The technical solution adopted for the present invention to solve the technical problems is: a kind of crawler type puddle mixer, comprise frame, transmission device and mixed husky device, charging aperture is provided with above described frame, frame front is provided with discharging opening, charging aperture and discharging opening are all provided with sideboard, sideboard, in order to closed charging aperture and discharging opening, can stop the diffusion of sand and dust in mixed husky process effectively.
Described transmission device comprises motor, the first rotating shaft I, second rotating shaft II, the 3rd rotating shaft III, the 4th rotating shaft IV, the 5th rotating shaft V, the 6th rotating shaft VI, belt pulley 1, belt pulley 2 II, belt pulley 3 III and belt pulley 4 IV, described motor is positioned at frame back upper place, motor is connected by bolt with frame, machine shaft is provided with belt pulley 1, motor is used for providing power; The first described rotating shaft I is positioned at frame back upper place, is provided with belt pulley 2 II, is connected with belt between belt pulley 1 and belt pulley 2 II on the right side of the first rotating shaft I, and the first rotating shaft I is in order to rotate mixed husky device; The second described rotating shaft II is positioned at the first rotating shaft I lower front, is provided with belt pulley 3 III, is connected with belt between belt pulley 2 II and belt pulley 3 III on the right side of the second rotating shaft II; The 3rd described rotating shaft III is positioned at the second rotating shaft II lower front, and the 3rd rotating shaft III is also positioned at central rack, is provided with belt pulley 3 IV, is connected with belt between belt pulley 3 III and belt pulley 4 IV on the right side of the 3rd rotating shaft III; The 4th described rotating shaft IV is positioned at frame front, and the 5th described rotating shaft V and the 6th rotating shaft VI are positioned at frame lower and in same level; The first described rotating shaft I, second rotating shaft II, the 3rd rotating shaft III, the 4th rotating shaft IV, the 5th rotating shaft V are all connected with frame by rolling bearing units with the 6th rotating shaft VI; Described transmission device is positioned on the right side of frame, is connected between transmission device with frame by rolling bearing units, and transmission device is in order to provide and to transmit power.
Described mixed husky device comprises rubber belt track and two large pinch rollers, described rubber belt track is respectively around in the first rotating shaft I, the 4th rotating shaft IV, the 5th rotating shaft V and the 6th rotating shaft VI, and the rubber belt track between the first rotating shaft I and the 4th rotating shaft IV is positioned at below the second rotating shaft II and the 3rd rotating shaft III, rubber belt track is for storing casting model powder and mixing it, two described large pinch rollers are connected in the 3rd rotating shaft III by bearing, and two large pinch roller symmetries are positioned at rubber belt track both sides of the edge, form cavity volume between two large pinch rollers and rubber belt track; Described mixed husky device is positioned at machine frame inside and around on transmission device, mixed husky device is for mixing casting model powder.
The second described rotating shaft II is provided with cleaning brush, and cleaning brush is for clearing up the casting model powder that rubber belt track adheres to.
The 3rd described rotating shaft III is provided with stirring wheel, and stirring wheel is for stirring the casting model powder in cavity volume.
Described large pinch roller is circular, and its upper surface is provided with boss, and be provided with through hole in the middle of boss, large pinch roller can prevent casting model powder from dropping from the side.
The invention has the beneficial effects as follows:
(1). a kind of crawler type puddle mixer of the present invention, adopts track structure to carry out mixed husky, and utilizes cleaning brush to carry out sticky husky cleaning, can improve mixed husky efficiency, save production cost;
(2). a kind of crawler type puddle mixer of the present invention, working environment is closed, and can reduce sand and dust, improves working environment quality;
(3). a kind of crawler type puddle mixer of the present invention, carry out discharging by rubber belt track reversion, in the unit interval, discharging quantity is comparatively large, improves operating efficiency;
(4). a kind of crawler type puddle mixer of the present invention, reasonable in design, principle is simple, is convenient to promote the use of.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
Fig. 1 is the perspective view of a kind of crawler type puddle mixer of the present invention;
Fig. 2 is the complete section schematic diagram of a kind of crawler type puddle mixer of the present invention;
Fig. 3 is the sectional view of the large pinch roller of the mixed husky device of a kind of crawler type puddle mixer of the present invention.
In figure: 1. frame, 2. transmission device, 3. mixed husky device, 11. charging apertures, 12. discharging openings, 13. sideboards, 201. motors, 202. first rotating shafts I, 203. second rotating shafts II, 204. the 3rd rotating shafts III, 205. the 4th rotating shafts IV, 206. the 5th rotating shafts V, 207. the 6th rotating shaft VI, 208. belt pulley one I, 209. belt pulley 2 II, 210. belt pulleys 3 III, 211. belt pulley 4 IV, 31. rubber belt tracks, 32. large pinch rollers, 2031. cleaning brush, 2041. stirring wheels, 321. boss, 322. through holes.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
As shown in Figure 1, Figure 2 and Figure 3, a kind of crawler type puddle mixer of the present invention, comprise frame 1, transmission device 2 and mixed husky device 3, charging aperture 11 is provided with above described frame 1, frame 1 front is provided with discharging opening 12, charging aperture 11 and discharging opening 12 are all provided with sideboard 13, and sideboard 13, in order to closed charging aperture 11 and discharging opening 12, can stop the diffusion of sand and dust in mixed husky process effectively.
Described transmission device 2 comprises motor 201, first rotating shaft I 202, second rotating shaft II 203, the 3rd rotating shaft III 204, the 4th rotating shaft IV 205, the 5th rotating shaft V 206, the 6th rotating shaft VI 207, belt pulley 1, belt pulley 2 II 209, belt pulley 3 III 210 and belt pulley 4 IV 211, described motor 201 is positioned at frame 1 back upper place, motor 201 is connected by bolt with frame 1, motor 201 rotating shaft is provided with belt pulley 1, and motor 201 is for providing power; The first described rotating shaft I 202 is positioned at frame 1 back upper place, is provided with belt pulley 2 II 209, is connected with belt between belt pulley 1 and belt pulley 2 II 209 on the right side of the first rotating shaft I 202, and the first rotating shaft I 202 is in order to rotate mixed husky device 3; The second described rotating shaft II 203 is positioned at the first rotating shaft I 202 lower front, is provided with belt pulley 3 III 210, is connected with belt between belt pulley 2 II 209 and belt pulley 3 III 210 on the right side of the second rotating shaft II 203; The 3rd described rotating shaft III 204 is positioned at the second rotating shaft II 203 lower front, and the 3rd rotating shaft III 204 is also positioned in the middle part of frame 1, is provided with belt pulley 3 IV, is connected with belt between belt pulley 3 III 210 and belt pulley 4 IV 211 on the right side of the 3rd rotating shaft III 204; The 4th described rotating shaft IV 205 is positioned at frame 1 front, and the 5th described rotating shaft V 206 and the 6th rotating shaft VI 207 are positioned at frame 1 bottom and in same level; The first described rotating shaft I 202, second rotating shaft II 203, the 3rd rotating shaft III 204, the 4th rotating shaft IV 205, the 5th rotating shaft V 206 are all connected with frame 1 by rolling bearing units with the 6th rotating shaft VI 207; Described transmission device 2 is positioned on the right side of frame 1, is connected between transmission device 2 with frame 1 by rolling bearing units, and transmission device 2 is in order to provide and to transmit power.
Described mixed husky device 3 comprises rubber belt track 31 and two large pinch rollers 32, described rubber belt track 31 is respectively around the first rotating shaft I 202, 4th rotating shaft IV 205, in 5th rotating shaft V 206 and the 6th rotating shaft VI 207, and the rubber belt track 31 between the first rotating shaft I 202 and the 4th rotating shaft IV 205 is positioned at below the second rotating shaft II 203 and the 3rd rotating shaft III 204, rubber belt track 31 is for storing casting model powder and mixing it, described two large pinch rollers 32 are connected in the 3rd rotating shaft III 204 by bearing, and two large pinch roller 32 symmetries are positioned at rubber belt track 31 both sides of the edge, cavity volume is formed between two large pinch rollers 32 and rubber belt track 31, described mixed husky device 3 is positioned at frame 1 inside and around on transmission device 2, mixed husky device 3 is for mixing casting model powder.
The second described rotating shaft II 203 is provided with cleaning brush 2031, and cleaning brush 2031 is for clearing up the casting model powder that rubber belt track 31 adheres to.
The 3rd described rotating shaft III 204 is provided with stirring wheel 2041, and stirring wheel is for stirring the casting model powder in cavity volume.
Described large pinch roller 32 is circular, its upper surface is provided with boss 321, and be provided with through hole 322 in the middle of boss 321, large pinch roller 32 can prevent casting model powder from dropping from the side.
During work, open the sideboard 13 on charging aperture 11, appropriate casting model powder is added from charging aperture 11, close sideboard 13, starter motor 201, motor 201 drives the first rotating shaft I 202 to rotate, first rotating shaft I 202 drives the second rotating shaft II 203 to rotate, second rotating shaft II 203 drives the 3rd rotating shaft III 204 to rotate, and rubber belt track 31 rotates (look from right side, rubber belt track 31 is for rotating counterclockwise) under the drive of the first rotating shaft I 202; Cleaning brush 2031 in second rotating shaft II 203 rotates, and the casting model powder sticked on rubber belt track 31 is cleaned out by cleaning brush 2031; Stirring wheel 2041 in 3rd rotating shaft III 204 rotates, and stirs casting model powder.Stir fully and make motor 201 Negative selection, rubber belt track 31 reversely rotates, and the casting model powder mixed unloads from discharging opening 12.
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; description in above-described embodiment and description principle of the present invention is just described; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. a crawler type puddle mixer, comprise frame (1), transmission device (2) and mixed husky device (3), it is characterized in that: described frame (1) top is provided with charging aperture (11), frame (1) front is provided with discharging opening (12), charging aperture (11) and discharging opening (12) are all provided with sideboard (13), described transmission device (2) is positioned at frame (1) right side, be connected by rolling bearing units between transmission device (2) with frame (1), it is inner and around on transmission device (2) that described mixed husky device (3) is positioned at frame (1), wherein:
Described transmission device (2) comprises motor (201), first rotating shaft I (202), second rotating shaft II (203), 3rd rotating shaft III (204), 4th rotating shaft IV (205), 5th rotating shaft V (206), 6th rotating shaft VI (207), belt pulley one I (208), belt pulley 2 II (209), belt pulley 3 III (210) and belt pulley 4 IV (211), described motor (201) is positioned at frame (1) back upper place, motor (201) is connected by bolt with frame (1), motor (201) rotating shaft is provided with belt pulley one I (208), the first described rotating shaft I (202) is positioned at frame (1) back upper place, first rotating shaft I (202) right side is provided with belt pulley 2 II (209), is connected with belt between belt pulley one I (208) and belt pulley 2 II (209), the second described rotating shaft II (203) is positioned at the first rotating shaft I (202) lower front, second rotating shaft II (203) right side is provided with belt pulley 3 III (210), is connected with belt between belt pulley 2 II (209) and belt pulley 3 III (210), the 3rd described rotating shaft III (204) is positioned at the second rotating shaft II (203) lower front, and the 3rd rotating shaft III (204) is also positioned at frame (1) middle part, 3rd rotating shaft III (204) right side is provided with belt pulley 3 IV, is connected with belt between belt pulley 3 III (210) and belt pulley 4 IV (211), the 4th described rotating shaft IV (205) is positioned at frame (1) front, and the 5th described rotating shaft the V (206) and the 6th rotating shaft VI (207) is positioned at frame (1) bottom and in same level, the first described rotating shaft I (202), second rotating shaft the II (203), the 3rd rotating shaft the III (204), the 4th rotating shaft the IV (205), the 5th rotating shaft V (206) is all connected with frame (1) by rolling bearing units with the 6th rotating shaft VI (207).
Described mixed husky device (3) comprises rubber belt track (31) and two large pinch rollers (32), described rubber belt track (31) is respectively around the first rotating shaft I (202), 4th rotating shaft IV (205), in 5th rotating shaft the V (206) and the 6th rotating shaft VI (207), and the rubber belt track (31) between the first rotating shaft the I (202) and the 4th rotating shaft IV (205) is positioned at the second rotating shaft the II (203) and the 3rd rotating shaft III (204) below, two described large pinch rollers (32) are connected in the 3rd rotating shaft III (204) by bearing, and two large pinch roller (32) symmetries are positioned at rubber belt track (31) both sides of the edge.
2. a kind of crawler type puddle mixer according to claim 1, is characterized in that: the second described rotating shaft II (203) is provided with cleaning brush (2031).
3. a kind of crawler type puddle mixer according to claim 1, is characterized in that: the 3rd described rotating shaft III (204) is provided with stirring wheel (2041).
4. a kind of crawler type puddle mixer according to claim 1, it is characterized in that: described large pinch roller (32) is for circular, its upper surface is provided with boss (321), in the middle of boss (321), is provided with through hole (322).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510158814.2A CN104841878B (en) | 2015-04-06 | 2015-04-06 | Crawler sand mixer |
| CN201610966638.XA CN106475513B (en) | 2015-04-06 | 2015-04-06 | A kind of crawler type sand mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510158814.2A CN104841878B (en) | 2015-04-06 | 2015-04-06 | Crawler sand mixer |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610966638.XA Division CN106475513B (en) | 2015-04-06 | 2015-04-06 | A kind of crawler type sand mixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104841878A true CN104841878A (en) | 2015-08-19 |
| CN104841878B CN104841878B (en) | 2017-01-18 |
Family
ID=53842074
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610966638.XA Expired - Fee Related CN106475513B (en) | 2015-04-06 | 2015-04-06 | A kind of crawler type sand mixer |
| CN201510158814.2A Expired - Fee Related CN104841878B (en) | 2015-04-06 | 2015-04-06 | Crawler sand mixer |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610966638.XA Expired - Fee Related CN106475513B (en) | 2015-04-06 | 2015-04-06 | A kind of crawler type sand mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106475513B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3768740A (en) * | 1972-01-03 | 1973-10-30 | J Carpenter | Reclamation of molded sand |
| DE2705606A1 (en) * | 1977-02-10 | 1978-08-17 | Hermann Jacob | Regenerating used foundry sand by dry mechanical treatment - sand being fed down vibrating tower filled with steel wool |
| CN101486069A (en) * | 2009-02-26 | 2009-07-22 | 吴毓华 | Simple sand mill |
| CN201357205Y (en) * | 2009-02-26 | 2009-12-09 | 吴毓华 | Sand mixing mechanism |
| CN101628317A (en) * | 2009-07-27 | 2010-01-20 | 常州市通力机电设备制造有限公司 | Continuous sand mixer |
| CN202192209U (en) * | 2011-08-12 | 2012-04-18 | 营口经济技术开发区熊岳铸造设备厂 | Sand mixer for casting |
| CN203778685U (en) * | 2013-11-04 | 2014-08-20 | 安徽威龙电力器材有限公司 | Carrier roller wheel device of casting shakeout sand cooling roller |
| CN204711082U (en) * | 2015-04-06 | 2015-10-21 | 安庆旭东工贸有限责任公司 | A kind of crawler type puddle mixer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5750237A (en) * | 1980-09-12 | 1982-03-24 | Nippon Kokan Keishiyu Kk | Regeneration of casting sand |
| JP3581467B2 (en) * | 1995-12-04 | 2004-10-27 | 株式会社清田鋳機 | Sand polishing equipment |
| CN201516489U (en) * | 2009-09-22 | 2010-06-30 | 宋玉杰 | Self-propelled sand-cast machine |
| CN203725691U (en) * | 2014-01-10 | 2014-07-23 | 江阴市第三铸造机械有限公司 | Sand mixer |
-
2015
- 2015-04-06 CN CN201610966638.XA patent/CN106475513B/en not_active Expired - Fee Related
- 2015-04-06 CN CN201510158814.2A patent/CN104841878B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3768740A (en) * | 1972-01-03 | 1973-10-30 | J Carpenter | Reclamation of molded sand |
| DE2705606A1 (en) * | 1977-02-10 | 1978-08-17 | Hermann Jacob | Regenerating used foundry sand by dry mechanical treatment - sand being fed down vibrating tower filled with steel wool |
| CN101486069A (en) * | 2009-02-26 | 2009-07-22 | 吴毓华 | Simple sand mill |
| CN201357205Y (en) * | 2009-02-26 | 2009-12-09 | 吴毓华 | Sand mixing mechanism |
| CN101628317A (en) * | 2009-07-27 | 2010-01-20 | 常州市通力机电设备制造有限公司 | Continuous sand mixer |
| CN202192209U (en) * | 2011-08-12 | 2012-04-18 | 营口经济技术开发区熊岳铸造设备厂 | Sand mixer for casting |
| CN203778685U (en) * | 2013-11-04 | 2014-08-20 | 安徽威龙电力器材有限公司 | Carrier roller wheel device of casting shakeout sand cooling roller |
| CN204711082U (en) * | 2015-04-06 | 2015-10-21 | 安庆旭东工贸有限责任公司 | A kind of crawler type puddle mixer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106475513A (en) | 2017-03-08 |
| CN106475513B (en) | 2018-08-21 |
| CN104841878B (en) | 2017-01-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Wei Inventor before: Tong Xudong |
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| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161026 Address after: Ganquan road Shushan District of Hefei City, Anhui Province, 230000 West hillock road to the South Wild Garden commercial office building room B-2702 Applicant after: HEFEI TUTENGLONG MEDICAL SUPPLIES DEVELOPMENT CO.,LTD. Address before: 246001 casting industrial park, Anqing Development Zone, Anhui, China Three Applicant before: ANQING XUDONG INDUSTRY AND TRADE Co.,Ltd. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161121 Address after: 402560 Chongqing city Tongliang District Bachuan Street office community backing Bayi Street Applicant after: Chongqing Lianhui Ecological Agriculture Development Co.,Ltd. Address before: Ganquan road Shushan District of Hefei City, Anhui Province, 230000 West hillock road to the South Wild Garden commercial office building room B-2702 Applicant before: HEFEI TUTENGLONG MEDICAL SUPPLIES DEVELOPMENT CO.,LTD. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 |