CN112453062A - Rolling mill slipping oil supplementing device and using method thereof - Google Patents
Rolling mill slipping oil supplementing device and using method thereof Download PDFInfo
- Publication number
- CN112453062A CN112453062A CN202011591531.4A CN202011591531A CN112453062A CN 112453062 A CN112453062 A CN 112453062A CN 202011591531 A CN202011591531 A CN 202011591531A CN 112453062 A CN112453062 A CN 112453062A
- Authority
- CN
- China
- Prior art keywords
- oil
- wheel
- hole
- roller
- adjusting
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a rolling mill slipping quantitative oil supplementing device and a using method thereof. The invention provides a device capable of lubricating a roller by spraying lubricating oil when the roller slips, so that the roller can be cooled and an oil film is formed between the roller and a rolling material to ensure that the roller continues to normally operate, a rolling mill keeps normal operation, and the device can greatly improve the production efficiency.
Description
Technical Field
The invention relates to the technical field of rolling mill equipment, in particular to a rolling mill slipping oil supplementing device and a using method thereof.
Background
In the modern manufacturing process, rolling mill equipment is widely used for rolling various plates, and hot rolling forming and cold rolling forming are adopted, wherein during hot rolling, high-speed steel rollers are often used for rolling the rolled plates. High-speed steel rolls have been widely used in hot rolling due to their excellent performance, however, during rolling, due to the large friction between the high-speed steel rolls and the rolled material, the rolls often slip due to the increase of rolling load during high-temperature rolling, and generally, oil lubrication is applied to the rolls during the roll slip, but excessive lubrication also causes the roll slip.
Disclosure of Invention
The invention provides a rolling mill slipping oil supplementing device and a using method thereof, aiming at the defects in the prior art.
In order to solve the technical problems, the invention is solved by the following technical scheme: the rolling mill slipping oil supplementing device comprises a lower roller, an upper roller and a base, wherein a gap is formed between the lower roller and the upper roller, and the lower roller is rotatably arranged on the base.
In the above scheme, it is preferred, the bottom roll feed side is equipped with the injection pump, be equipped with the nozzle on the injection pump, the injection pump passes through the pipeline and links to each other with oil tank and adjusting device, and its beneficial effect lies in: provided is a lubricating oil injection device which can inject lubricating oil onto a roll.
In the above scheme, it is preferred, controlling means includes casing, regulating wheel, response wheel and first support, the casing sets firmly on the base through the support and locates the bottom roll discharge side, be equipped with first through-hole on the casing, the regulating wheel is located in the casing, evenly be equipped with a plurality of and first through-hole matched with adjusting device on the regulating wheel, its beneficial effect lies in: the shell for the oil supply liquid to pass through is provided, and the oil liquid can normally pass through after internal regulation is ensured.
In the above-mentioned scheme, it is preferred, adjusting device include with first through-hole matched with second through-hole, positive magnet, negative magnet and with the first spout of second through-hole matched with, positive magnet sets firmly in first spout bottom, the negative magnet slides and locates on the first spout, and its beneficial effect lies in: the oil through hole adjusting device can adjust the opening and closing of the magnet through centrifugal force, so that the oil quantity of oil passing through the second through hole can be controlled.
In the above scheme, it is preferred, the response wheel rotates and locates on the first support, the response wheel links to each other with the regulating wheel through first connecting axle, the response wheel passes through the second connecting axle and links to each other with the carousel, the carousel is connected with cleaning device, and its beneficial effect lies in: the power connecting device of the adjusting wheel is provided, the first connecting shaft is connected with the induction wheel, the power of the induction wheel is transmitted to the adjusting wheel, and the adjusting wheel is enabled to rotate.
In the above scheme, it is preferred, cleaning device is including changeing round pin, scraper blade, first spring, stay cord and guide arm, change the round pin and rotate and locate the carousel outer fringe, the stay cord both ends link to each other with changeing round pin and scraper blade respectively, the guide arm is located on the first support, the scraper blade slides and locates on the guide arm, first spring housing is established on the guide arm and is leaned on scraper blade and first support respectively in top, its beneficial effect lies in: the cleaning device for the induction wheel can remove magazines and oil stains on the surface of the induction wheel, ensures the friction force between the induction wheel and the rolling plate, and ensures the use effect of the adjusting device.
In the above scheme, preferably, the number of the adjusting devices is 4-20 groups, and the beneficial effects are that: and providing a quantity range of the adjusting devices, and determining the quantity of the adjusting devices according to the sizes of different adjusting wheels and the oil mass passing frequency.
In the above scheme, it is preferred, the response wheel outer fringe is equipped with the profile of tooth, the response wheel material is alloy steel, and its outer fringe surface inlays and has nylon granule, and its beneficial effect lies in: provides a durable induction wheel, and the nylon particles embedded on the surface of the induction wheel can greatly increase the friction force, thereby ensuring the precision of speed conversion between the induction wheel and a rolled plate
In the above scheme, it is preferred, be equipped with the brush on the scraper blade, the brush material is thin steel wire, and its beneficial effect lies in: the utility model provides a can clean brush in response teeth of a cogwheel clearance to this brush material is thin iron wire, can improve its life greatly, and the effect of the garrulous iron fillings between the response teeth of a cogwheel of clearance is better
The method for using the rolling mill slipping oil supplementing device comprises the following steps: firstly, when the rolling mill normally works, an oil injection pump sucks oil in an oil tank out of a pipeline and passes through a first through hole, a roller extrudes a rolled material to enable the rolled material to be formed into a rolled plate, the rolled plate is in contact friction with an induction wheel in the running process of a discharging side to drive the induction wheel to roll, and the induction wheel drives an adjusting wheel to rotate; at the moment, the adjusting device in the adjusting wheel is under the action of centrifugal force generated by rotation of the adjusting wheel, the negative magnet breaks away from the magnetic force of the positive magnet and slides to the tail of the first sliding groove, the negative magnet shields the second through hole, so that lubricating oil passing through the first through hole cannot pass through the second through hole, the lubricating oil cannot be sprayed out from the nozzle, namely a lubricating oil loop is in a closed state, meanwhile, a rotating pin on the rotating disc makes circular motion around the rotating disc, the scraper plate makes linear motion along the guide rod through a pull rope, and a brush on the scraper plate scrapes and cleans impurities and oil stains on the induction wheel, so that the induction wheel always keeps good friction contact force; when the upper roller of the rolling mill skids, the rolling plate can not normally come out, namely, the rolling plate stops running, the induction wheel can not rotate due to loss of the running power of the rolling plate, the regulating wheel also stops running at the moment, the negative magnet slides to the bottom of the regulating wheel under the action of the suction force of the positive magnet and is attached to the positive magnet, the first through hole is communicated with the second through hole, lubricating oil is conveyed to the nozzle through the first through hole at the moment, the nozzle sprays the lubricating oil onto the lower roller, and the roller is cooled after lubrication and forms an oil film, so that the rolling mill can normally work.
The invention has the beneficial effects that: the invention provides a rolling mill capable of continuously carrying out hot rolling, which can provide lubricating oil to cool a roll when the roll and a rolling material slip through a roll lubricating oil supplementing device, and form an oil film between the roll and the rolling material to keep corresponding friction force, so that the roll does not slip due to high temperature and the thickness of the oil film, and the oil supplementing device not only improves the production efficiency, but also avoids the roll damage phenomenon caused by the roll slipping.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a partially enlarged schematic view of the present invention.
Fig. 4 is a partial sectional structural schematic view of the present invention.
Fig. 5 is a schematic view of the structure of the regulating wheel of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1-5, a roller lubricating oil adjusting device and a use method thereof comprise a lower roller 1, an upper roller 2 and a base 3, wherein a gap is arranged between the lower roller 1 and the upper roller 2, the gap is the thickness of a rolled material passing through during rolling, the lower roller 1 is rotatably arranged on the base 3, and a bearing seat is preferably arranged between the lower roller 1 and the base 3 to ensure the rotation smoothness of the lower roller 1 and the base 3.
Preferably, an oil injection pump 4 is arranged on the feeding side of the lower roller 1, a nozzle 5 is arranged on the oil injection pump 4, the oil injection nozzle 5 can reduce the temperature of the lower roller 1 during injection, and an oil film can be formed between the lower roller 1 and a rolled material to ensure a constant friction coefficient during rolling, the oil injection pump 4 is connected with an oil tank 6 and an adjusting device through a pipeline, and the oil injection pump 4 sucks lubricating oil in the oil tank 6 out through a control device and then flows into the nozzle 5 on the oil injection pump 4 to be injected.
Preferably, the control device comprises a shell 7, an adjusting wheel 8, an induction wheel 9 and a first support 10, the shell 7 is fixedly arranged on the base 3 through a support and is arranged on the discharging side of the lower roller 1, a first through hole 11 is formed in the shell 7, the first through hole 11, the oil injection pump 4 and the oil tank 6 form a loop, lubricating oil is sucked out of the oil tank 6 by the oil injection pump 4 and then is sprayed out of the nozzle 5 through the first through hole 11, the first through hole 11 is preferably a cylindrical hole, the adjusting wheel 8 is arranged in the shell 7, the adjusting wheel 8 can rotate in the shell 7, the adjusting wheel 8 and the shell 7 are in a sealed state during rotation, the lubricating oil cannot overflow from a rotating part and can only pass through a second through hole 12 formed in the adjusting wheel 8.
Preferably, a plurality of adjusting devices matched with the first through holes 11 are uniformly arranged on the adjusting wheel 8, and the adjusting devices are preferably 4-20 groups and can be determined according to the aperture of the first through holes 11 on the shell 7 and the outer diameter of the adjusting wheel 8; the adjusting device comprises a second through hole 12 matched with the first through hole 11, a positive magnet 13, a negative magnet 14 and a first sliding groove 15 matched with the second through hole 12, the magnetic force when the positive magnet 13 is meshed with the negative magnet 14 is smaller than the centrifugal force when the adjusting wheel 8 rotates, the negative magnet 14 can slide in the first sliding groove 15 along the direction far away from the positive magnet 13 when the adjusting wheel 8 rotates, a sealing ring is arranged between the negative magnet 14 and the first sliding groove 15, the resistance between the sealing ring and the first sliding groove is smaller than the magnetic force when the magnet is meshed, the positive magnet 13 is fixedly arranged at the bottom of the first sliding groove 15 and is close to the central hole of the adjusting wheel 8, and the negative magnet 14 can completely shield the second through hole 12 when sliding to the outermost edge of the adjusting wheel 8.
Preferably, the induction wheel 9 is rotatably arranged on the first support 10, the outer edge of the induction wheel 9 is provided with a tooth shape, the induction wheel 9 is made of alloy steel, and nylon particles are embedded on the outer edge surface of the induction wheel 9; the induction wheel 9 is connected with the adjusting wheel 8 through a first connecting shaft 16, and the induction wheel 9 is connected with the rotary table 18 through a second connecting shaft 17.
Preferably, the rotary disc 18 is connected with a cleaning device, the cleaning device comprises a rotary pin 19, a scraper 20, a first spring 21, a pull rope 22 and a guide rod 23, the rotary pin 19 is rotatably arranged at the outer edge of the rotary disc 18, namely, the center of the rotary pin 19 has a certain distance with the center of the rotary disc 18, and the distance is determined according to the scraping stroke of the scraper 20; preferably, both ends of the pull rope 22 are respectively connected with the rotating pin 19 and the scraper 20, the pull rope 22 is preferably connected to the center of the scraper 20, the pull rope 22 is connected with the rotating pin 19 after penetrating through the side plate of the first bracket 10, and the connection mode is preferably riveted; the guide rods 23 are arranged on the first support 10, two groups of guide rods 23 are preferably arranged on two sides of the scraper 20 symmetrically, the scraper 20 is arranged on the guide rods 23 in a sliding mode, the first springs 21 are sleeved on the guide rods 23 and respectively abut against the scraper 20 and the first support 10, a brush is preferably arranged on the scraper 20, and the brush is made of preferably thin steel wires.
The working principle or the using method is as follows:
firstly, when the rolling mill normally works, the oil in the oil tank 6 is sucked out by the oil injection pump 4 and passes through the first through hole 11 through the pipeline, the rolling material is extruded by the roller to be formed into a rolling plate, the rolling plate is in contact friction with the induction wheel 9 in the running process of the discharging side to drive the induction wheel 9 to roll, and the induction wheel 9 drives the adjusting wheel 8 to rotate; at this time, the adjusting device in the adjusting wheel 8 is acted by the centrifugal force of the rotation of the adjusting wheel 8, the negative magnet 14 gets rid of the magnetic force of the positive magnet 13 and slides to the tail of the first sliding chute 15, the negative magnet 14 shields the second through hole 12, so that the lubricating oil passing through the first through hole 11 cannot pass through, and the lubricating oil cannot be sprayed out from the nozzle 5, namely the lubricating oil loop is in a closed state, meanwhile, the rotating pin 19 on the rotating disc 18 makes a circular motion around the rotating disc 18, the scraper 20 makes a linear motion along the guide rod 21 through the pull rope 22, and the brush on the scraper 20 scrapes impurities and oil stains on the induction wheel 9 clean, so that the induction wheel 9 always keeps a good friction contact force; subsequently, when the rolling mill roll slips, the rolled plate cannot be normally discharged, namely the rolled plate stops running, the induction wheel 9 cannot rotate due to the loss of the rolling plate running power, the adjusting wheel 8 also stops running at the moment, the negative magnet 14 slides to the bottom of the adjusting wheel 8 under the action of the suction force of the positive magnet 13 to be attached to the positive magnet 13, the first through hole 11 is communicated with the second through hole 12, the lubricating oil is conveyed to the nozzle 5 through the first through hole 11 at the moment, the nozzle 5 sprays the lubricating oil onto the lower roll 1, and the roll is cooled after being lubricated and forms an oil film, so that the rolling mill roll can normally work.
The device can make the roller skid when hot rolling to lead to the plate to be rolled out and mend oil to the roller when stopping, solves the problem of skidding of the roller caused by insufficient oil film or overhigh temperature, greatly improves the production efficiency and prolongs the service life of the high-speed steel roller.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a rolling mill oil supplementing device that skids and application method thereof, includes lower roll (1), top roll (2) and base (3), be equipped with the clearance between lower roll (1) and top roll (2) roller, lower roll (1) rotates and locates on base (3), its characterized in that: an oil injection pump (4) is arranged on the feeding side of the lower roller (1), a nozzle (5) is arranged on the oil injection pump (4), and the oil injection pump (4) is connected with an oil tank (6) and a control device through a pipeline;
the control device comprises a shell (7), an adjusting wheel (8), an induction wheel (9) and a first support (10), the shell (7) is fixedly arranged on the base (3) through a support and is arranged on the discharging side of the lower roller (1), a first through hole (11) is formed in the shell (7), the adjusting wheel (8) is arranged in the shell (7), and a plurality of adjusting devices matched with the first through hole (11) are uniformly arranged on the adjusting wheel (8);
the adjusting device comprises a second through hole (12) matched with the first through hole (11), a positive magnet (13), a negative magnet (14) and a first sliding groove (15) matched with the second through hole (12), the positive magnet (13) is fixedly arranged at the bottom of the first sliding groove (15), and the negative magnet (14) is arranged on the first sliding groove (15) in a sliding manner;
the induction wheel (9) is rotatably arranged on the first support (10), the induction wheel (9) is connected with the adjusting wheel (8) through a first connecting shaft (16), the induction wheel (9) is connected with the rotary table (18) through a second connecting shaft (17), and the rotary table (18) is connected with a cleaning device;
the cleaning device comprises a rotating pin (19), a scraper (20), a first spring (21), a pull rope (22) and a guide rod (23), wherein the rotating pin (19) is rotatably arranged at the outer edge of the turntable (18), two ends of the pull rope (22) are respectively connected with the rotating pin (19) and the scraper (20), the guide rod (23) is arranged on the first support (10), the scraper (20) is slidably arranged on the guide rod (23), and the first spring (21) is sleeved on the guide rod (23) and respectively abuts against the scraper (20) and the first support (10).
2. The rolling mill oil-supplementing device according to claim 1, characterized in that: the number of the adjusting devices is 4-20 groups.
3. The rolling mill oil-supplementing device according to claim 1, characterized in that: the outer edge of the induction wheel (9) is provided with a tooth shape, the induction wheel (9) is made of alloy steel, and nylon particles are inlaid in the surface of the outer edge of the induction wheel.
4. The rolling mill oil-supplementing device according to claim 1, characterized in that: the scraper blade (20) is provided with a brush which is made of thin steel wires.
5. A method of using a rolling mill skid oil replenishment device as claimed in claim 1, wherein: the method comprises the following steps: firstly, when the rolling mill normally works, an oil injection pump sucks oil in an oil tank out of a pipeline and passes through a first through hole, a roller extrudes a rolled material to enable the rolled material to be formed into a rolled plate, the rolled plate is in contact friction with an induction wheel in the running process of a discharging side to drive the induction wheel to roll, and the induction wheel drives an adjusting wheel to rotate; at the moment, the adjusting device in the adjusting wheel is under the action of centrifugal force generated by rotation of the adjusting wheel, the negative magnet breaks away from the magnetic force of the positive magnet and slides to the tail of the first sliding groove, the negative magnet shields the second through hole, so that lubricating oil passing through the first through hole cannot pass through the second through hole, the lubricating oil cannot be sprayed out from the nozzle, namely a lubricating oil loop is in a closed state, meanwhile, a rotating pin on the rotating disc makes circular motion around the rotating disc, the scraper plate makes linear motion along the guide rod through a pull rope, and a brush on the scraper plate scrapes impurities and oil stains on the induction wheel completely, so that the induction wheel always keeps good friction contact force; when the upper roller of the rolling mill skids, the rolling plate can not normally come out, namely the rolling plate stops running, the induction wheel can not rotate due to loss of the running power of the rolling plate, the regulating wheel also stops running at the moment, the negative magnet slides to the bottom of the regulating wheel under the action of the suction force of the positive magnet to be attached to the positive magnet, the first through hole is communicated with the second through hole, the lubricating oil is conveyed to the nozzle through the first through hole at the moment, the nozzle sprays the lubricating oil onto the lower roller, and the roller is cooled after being lubricated and forms an oil film, so that the roller can normally work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011591531.4A CN112453062B (en) | 2020-12-29 | 2020-12-29 | Rolling mill slipping oil supplementing device and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011591531.4A CN112453062B (en) | 2020-12-29 | 2020-12-29 | Rolling mill slipping oil supplementing device and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112453062A true CN112453062A (en) | 2021-03-09 |
| CN112453062B CN112453062B (en) | 2021-07-06 |
Family
ID=74802105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011591531.4A Active CN112453062B (en) | 2020-12-29 | 2020-12-29 | Rolling mill slipping oil supplementing device and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112453062B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202087582U (en) * | 2011-05-12 | 2011-12-28 | 攀钢集团有限公司 | Universal mill |
| WO2012079785A1 (en) * | 2010-12-16 | 2012-06-21 | Siemens Vai Metals Technologies Gmbh | Method and apparatus for applying a lubricant while rolling metallic rolled stock |
| CN110026436A (en) * | 2019-05-20 | 2019-07-19 | 安徽协同创新设计研究院有限公司 | A kind of band and strip rolling mill roll clast processing method |
| CN110170531A (en) * | 2019-06-19 | 2019-08-27 | 鞍钢未来钢铁研究院有限公司 | A kind of lubricating method of section rolling |
| CN111360076A (en) * | 2018-12-25 | 2020-07-03 | 宝山钢铁股份有限公司 | Simple rolling test foundation platform |
-
2020
- 2020-12-29 CN CN202011591531.4A patent/CN112453062B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012079785A1 (en) * | 2010-12-16 | 2012-06-21 | Siemens Vai Metals Technologies Gmbh | Method and apparatus for applying a lubricant while rolling metallic rolled stock |
| CN202087582U (en) * | 2011-05-12 | 2011-12-28 | 攀钢集团有限公司 | Universal mill |
| CN111360076A (en) * | 2018-12-25 | 2020-07-03 | 宝山钢铁股份有限公司 | Simple rolling test foundation platform |
| CN110026436A (en) * | 2019-05-20 | 2019-07-19 | 安徽协同创新设计研究院有限公司 | A kind of band and strip rolling mill roll clast processing method |
| CN110170531A (en) * | 2019-06-19 | 2019-08-27 | 鞍钢未来钢铁研究院有限公司 | A kind of lubricating method of section rolling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112453062B (en) | 2021-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206286341U (en) | Inner thread copper tube forming mold component | |
| CN105345618B (en) | A kind of processing unit of BGA solder balls surface roughness | |
| CN105397956B (en) | Vulcanizing board sander | |
| CN112453062B (en) | Rolling mill slipping oil supplementing device and using method thereof | |
| CN109202737B (en) | A kind of weld grinding technique of stainless steel welded pipe | |
| CN213804587U (en) | Steel wire rope processingequipment | |
| CN112453061B (en) | Roller lubricating oil adjusting device and using method thereof | |
| CN220183684U (en) | Steel wire rope surface oiling device | |
| CN112589604A (en) | Grinding device for avoiding too high grinding speed to cause too large abrasion of mobile phone shell | |
| CN115652564B (en) | Dyeing equipment for braid production | |
| CN114939485B (en) | Coating device for surface treatment of aircraft parts and coating method thereof | |
| CN216334548U (en) | Belt conveyor with cleaning function | |
| CN104889167A (en) | Metallic composite rolling lubricating technology and device | |
| CN110613986A (en) | Air purification device used for galvanization and convenient to maintain | |
| CN102553773B (en) | Oil wheel device for colored coating machine for surface of metal zipper | |
| CN114857477A (en) | Lubricating device of belt type power transmission mechanism | |
| CN109169752B (en) | Egg liquid roll printing machine | |
| CN221120674U (en) | Wear-resistant centrifugal fan bearing | |
| CN112610866B (en) | Automatic lubricating and more even pivot lubricating arrangement is paintd to lubricated liquid | |
| CN108266522B (en) | Optimized chain transmission type chain debugging and overhauling device | |
| CN216415999U (en) | Automatic cleaning device for side chain of tobacco flake redrying machine | |
| CN204672689U (en) | A kind of metal composite rolling lubricating device | |
| CN215665657U (en) | Metal mold conveying device | |
| CN218778212U (en) | High-wear-resistance sealing carrier roller | |
| CN202900672U (en) | Scroll compressor |
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 Rolling Mill Slipping and Oil Replenishing Device and Its Usage Method Effective date of registration: 20230419 Granted publication date: 20210706 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Jinhua Wuyi sub branch Pledgor: Zhejiang disseminator metal decoration material Co.,Ltd. Registration number: Y2023980038363 |