CN116713318B - Annular cold rolling mill - Google Patents

Annular cold rolling mill Download PDF

Info

Publication number
CN116713318B
CN116713318B CN202310754005.2A CN202310754005A CN116713318B CN 116713318 B CN116713318 B CN 116713318B CN 202310754005 A CN202310754005 A CN 202310754005A CN 116713318 B CN116713318 B CN 116713318B
Authority
CN
China
Prior art keywords
roller
gear
press roller
rod
press
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
Application number
CN202310754005.2A
Other languages
Chinese (zh)
Other versions
CN116713318A (en
Inventor
周开杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Fuyang Lili Cold Rolling Co ltd
Original Assignee
Hangzhou Fuyang Lili Cold Rolling Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hangzhou Fuyang Lili Cold Rolling Co ltd filed Critical Hangzhou Fuyang Lili Cold Rolling Co ltd
Priority to CN202310754005.2A priority Critical patent/CN116713318B/en
Publication of CN116713318A publication Critical patent/CN116713318A/en
Application granted granted Critical
Publication of CN116713318B publication Critical patent/CN116713318B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B15/00Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B2001/221Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by cold-rolling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B15/00Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007Cutting or shearing the product
    • B21B2015/0014Cutting or shearing the product transversely to the rolling direction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B15/00Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057Coiling the rolled product
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse 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 belongs to the field of cold rolling, and particularly relates to an annular cold rolling mill which comprises side plates, a motor A, a press roller B, a press roller C, a press roller D, a press roller E, a press roller F, a press roller G, a support mechanism A, a support mechanism B, a driving mechanism, a raw material roller, a finished product roller and a trolley mechanism, wherein the press roller B, the press roller D, the press roller F and the press roller G which are driven by the motor A to sequentially press a steel plate are arranged between the two side plates along the annular direction; the compression roller B is matched with a compression roller A in transmission connection with the compression roller B, the compression roller D is matched with a compression roller C in transmission connection with the compression roller D, and a compression roller E in transmission connection with the compression roller F is matched with the compression roller G. The press rollers A to G, the cutting roller A, the cutting roller B, the finished product roller and the raw material roller are arranged between the two side plates in annular distribution, so that the occupied space of equipment in a factory building is reduced, and the space of the factory building is effectively saved.

Description

Annular cold rolling mill
Technical Field
The invention belongs to the field of cold rolling, and particularly relates to an annular cold rolling mill.
Background
Cold-rolled sheet (english name cold rolled sheet) is produced by rolling a hot-rolled coil at room temperature or below at a recrystallization temperature. It is used in automobile manufacture, electric appliance, etc. Cold rolling is rolling at a recrystallization temperature, but is generally understood to be rolling using a rolled material at ordinary temperature.
The existing cold rolling mill generally sequentially thins the steel plate raw materials through a plurality of press rolls which are horizontally distributed, so as to obtain the steel plate with the required thickness.
The horizontal arrangement of a plurality of compression rollers needs to occupy more factory building space, and is not suitable for the installation arrangement of a small factory building.
There is also room for reduction in the cost of current cold rolling mills. Such as: the positions of the raw material roller and the finished product roller wound with the steel plate thinned to the specified thickness are different, so that the feeding and discharging structures are provided.
The invention designs an annular cold rolling mill to solve the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses an annular cold rolling mill which is realized by adopting the following technical scheme.
An annular cold rolling mill comprises side plates, a motor A, a press roller B, a press roller C, a press roller D, a press roller E, a press roller F, a press roller G, a supporting mechanism A, a supporting mechanism B, a driving mechanism, a raw material roller, a finished product roller and a trolley mechanism, wherein the press roller B, the press roller D, the press roller F and the press roller G which are driven by the motor A to sequentially thin a steel plate are arranged between the two side plates along the annular direction; the compression roller B is matched with a compression roller A in transmission connection with the compression roller B, the compression roller D is matched with a compression roller C in transmission connection with the compression roller D, and a compression roller E in transmission connection with the compression roller F is matched between the compression roller F and the compression roller G; a structure for cutting edges of the formed thin steel plate is arranged between the two side plates; the two side plates are provided with two supporting mechanisms A for transferring the raw material rollers from the trolley mechanism to the two side plates and positioning the raw material rollers positioned on the side plates and a supporting mechanism B for transferring the finished product rollers used for winding and forming the thin steel plates from the trolley mechanism to the two side plates and positioning and supporting the finished product rollers positioned on the side plates; the side plates are provided with driving mechanisms for driving the finished product rollers to rotate.
As a further improvement of the technology, a guiding roller for guiding the steel plate on the raw material roller into the space between the pressing roller A and the pressing roller B is arranged between the two side plates, and the outer diameter of the guiding roller is larger than or equal to that of the raw material roller.
As a further improvement of the technology, a cutting roller A and a cutting roller B which are matched with each other are arranged between the two side plates; two cutter teeth at two ends of the cutting roller B are matched with two cutting grooves at two ends of the cutting roller A.
As a further improvement of the technology, a gear J and a chain wheel F are arranged on a roll shaft where the guide roll is positioned; the gear J is meshed with a gear K on an output shaft of the motor A on the side plate; a roller shaft on which the press roller B is arranged is provided with a chain wheel E, a roller shaft on which the press roller D is arranged is provided with a chain wheel D, a roller shaft on which the press roller F is arranged is provided with a chain wheel C, a roller shaft on which the press roller G is arranged is provided with a chain wheel B, and a roller shaft on which the cutting roller B is arranged is provided with a chain wheel A; the chain wheel A, the chain wheel B, the chain wheel C, the chain wheel D, the chain wheel E and the chain wheel F are connected through chain transmission; a gear I is arranged on the roller shaft where the press roller A is positioned, and the gear I is meshed with a gear H on the roller shaft where the press roller B is positioned; a gear G is arranged on a roller shaft where the press roller C is positioned, and the gear G is meshed with a gear F on the roller shaft where the press roller D is positioned; a gear D is arranged on the roller shaft where the press roller E is positioned, and the gear D is meshed with a gear E on the roller shaft where the press roller F is positioned and a gear C on the roller shaft where the press roller G is positioned; the roller shaft where the cutting roller A is positioned is provided with a gear B which is meshed with the gear A on the roller shaft where the cutting roller B is positioned.
As a further improvement of the present technology, two sprockets G are mounted on the side plates to allow the chain to cover the sprocket B, the sprocket C and the sprocket D.
As a further improvement of the technology, the transmission ratio of the gear H to the gear I is equal to the radius ratio of the press roller B to the press roller A, so that the linear speeds of the press roller B and the press roller A are equal. The transmission ratio of the gear F to the gear G is equal to the radius ratio of the press roller D to the press roller C, so that the linear speeds of the press roller C and the press roller D are equal. The transmission ratio of the gear E to the gear D is equal to the radius ratio of the press roller F to the press roller E, so that the linear speeds of the press roller E and the press roller F are ensured to be equal. The transmission ratio of the gear C to the gear D is equal to the radius ratio of the press roller G to the press roller E, so that the linear speeds of the press roller E and the press roller G are equal. The transmission ratio of the gear A to the gear B is equal to the radius ratio of the cutting roller B to the cutting roller A, so that the linear speeds of the cutting roller B and the cutting roller A are equal.
As a further improvement of the technology, the supporting mechanism A comprises a guide sleeve A, a cross rod, a hoop block A, a deflector rod A, an electric push rod A and a hydraulic cylinder, wherein the cross rod horizontally slides in the guide sleeve A at the inner side of the corresponding side plate under the driving of the hydraulic cylinder; the tail end of the cross rod is hinged with a hoop block A which positions the corresponding end of a rotating shaft B where the raw material roller is positioned at a clamping groove at the tail end of the cross rod, and an electric push rod A is hinged between a deflector rod A on the hoop block A and the cross rod.
As a further improvement of the technology, the supporting mechanism B comprises a rotating shaft A, a turbine, a worm, a motor B, a swinging rod, a supporting rod, a hoop block B, a deflector rod B, an electric push rod B, a lock sleeve, a guide sleeve B, a locking rod and an electric push rod C, wherein the rotating shaft A arranged on two side plates is symmetrically provided with two swinging rods; a supporting rod is arranged at the tail end of each swing rod, a hoop block B for positioning the corresponding end of a rotating shaft B where a finished product roller is positioned at a clamping groove at the tail end of the supporting rod is hinged at the tail end of the supporting rod, an electric push rod B is hinged between a deflector rod B on the hoop block B and the supporting rod, and a lock rod driven by the electric push rod C and matched with a lock sleeve on the hoop block B is arranged in a sliding manner in a guide sleeve B on the supporting rod; the worm wheel on the rotating shaft A is meshed with the worm arranged on the side plate, and the worm is in transmission connection with the output shaft of the motor B on the side plate.
As a further improvement of the technology, the driving mechanism comprises a guide seat, a sliding seat A, a sleeve rod A, an inner rod, a return spring, a sleeve rod B, a gear L, a gear M, a motor C and an electric push rod D, wherein the sliding seat A driven by the electric push rod D horizontally slides in the axial direction of a rotating shaft A in the guide seat on a side plate, the sleeve rod A is rotatably matched with the sliding seat A, the inner rod is axially slid in the sleeve rod A, and the return spring for resetting the inner rod is arranged; the tail end of the inner rod is provided with a hexagonal groove matched with the hexagonal head at the tail end of the rotating shaft B where the finished product roller is positioned; the guide seat is rotationally matched with a loop bar B which is axially and slidably matched with the loop bar A; the output shaft of the motor C arranged on the guide seat is provided with a gear M which is meshed with a gear L on the loop bar B.
As a further improvement of the technology, the trolley mechanism comprises a saddle, wheels, a sliding seat B, a bracket, a rack, a gear N, a motor D, a transmission belt and a motor E, wherein the saddle which moves along the axial direction of a rotating shaft A is provided with four wheels matched with a ground guide rail; two sliding seats B are arranged on the saddle and move oppositely or oppositely along the axial direction of the rotating shaft A in a synchronous way, and each sliding seat B is provided with a bracket which is inserted and assembled with the corresponding side rotating shaft B on the raw material roller or the finished product roller; racks are arranged on the two sliding seats B, the two racks are meshed with a gear N on the sliding seat B, and a shaft where the gear N is positioned is in transmission connection with an output shaft of a motor D on the sliding seat B; the slide B is connected with a conveying belt driven by a motor E on the ground.
The raw material roller or the finished product roller is provided with a coaxial shaft sleeve, two ends of the shaft sleeve are respectively inserted with a rotating shaft B, and a flange on the rotating shaft B is connected with a flange on the shaft sleeve through bolts.
The side plates are provided with supporting grooves matched with the two rotating shafts B on the raw material roller.
Compared with a traditional cold rolling mill, the press rolls A to G, the cutting roll A, the cutting roll B, the finished product roll and the raw material roll are arranged between the two side plates in an annular distribution, so that the occupied space of equipment in a factory is reduced, and the factory space is effectively saved.
According to the invention, the feeding of the raw material roller from the trolley mechanism serving as the transmission structure to the space between the two side plates can be completed through the two supporting mechanisms A arranged on the two side plates, and meanwhile, the discharging of the finished product roller from the two side plates to the trolley mechanism serving as the transmission structure can be completed through the supporting mechanism B, so that the feeding and discharging processes can be completed only through one set of transmission structure of the two trolley mechanisms moving on the guide rail, and the equipment cost is reduced.
The invention has simple structure and better use effect.
Drawings
Fig. 1 is a schematic overall view of the present invention.
Fig. 2 is a schematic overall cross-sectional view of the present invention.
Fig. 3 is a schematic side view of two embodiments of the present invention.
Fig. 4 is a schematic cross-sectional view of the mating of cutting roll a and cutting roll B.
Fig. 5 is a schematic cross-sectional view of the driving mechanism and the supporting mechanism B in cooperation with the rotating shaft B of the product roll.
Fig. 6 is a schematic cross-sectional view of the driving mechanism mated with the shaft B of the product roll.
Fig. 7 is a schematic cross-sectional view of the support mechanism B driving structure from two perspectives.
Fig. 8 is a schematic view of the support mechanism B and a partial cross section thereof.
Fig. 9 is a schematic cross-sectional view of two trolley mechanisms.
Reference numerals in the figures: 1. a side plate; 2. a support groove; 4. a guide roller; 5. a press roller A; 6. a press roller B; 7. a press roll C; 8. a press roll D; 9. a press roll E; 10. a press roll F; 11. a press roller G; 12. a cutting roller A; 13. cutting grooves; 14. a cutting roller B; 15. cutter teeth; 16. a gear A; 17. a chain wheel A; 18. a gear B; 19. a gear C; 20. a chain wheel B; 21. a gear D; 22. a gear E; 23. a sprocket C; 24. a gear F; 25. a sprocket D; 26. a gear G; 27. a gear H; 28. a sprocket E; 29. a gear I; 30. a gear J; 31. a sprocket F; 32. a gear K; 33. a motor A; 34. a sprocket G; 35. a chain; 36. a supporting mechanism A; 37. a guide sleeve A; 38. a cross bar; 39. a hoop block A; 40. a deflector rod A; 41. an electric push rod A; 42. a hydraulic cylinder; 43. a supporting mechanism B; 44. a rotating shaft A; 45. a turbine; 46. a worm; 47. a motor B; 48. swing rod; 49. a support rod; 50. a hoop block B; 51. a deflector rod B; 52. an electric push rod B; 53. a lock sleeve; 54. guide sleeve B; 55. a lock lever; 56. an electric push rod C; 57. a driving mechanism; 58. a guide seat; 59. a sliding seat A; 60. a loop bar A; 61. an inner rod; 62. a return spring; 63. a loop bar B; 64. a gear L; 65. a gear M; 66. a motor C; 67. an electric push rod D; 68. a raw material roller; 69. a shaft sleeve; 70. a rotating shaft B; 71. a hexagonal head; 72. a finishing roll; 73. a steel plate; 74. a guide rail; 75. a trolley mechanism; 76. a saddle; 77. a wheel; 78. a sliding seat B; 79. a bracket; 80. a rack; 81. a gear N; 82. a motor D; 83. a transmission belt; 84. and a motor E.
Detailed Description
The drawings are schematic representations of the practice of the invention to facilitate understanding of the principles of operation of the structure. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.
As shown in fig. 1, 2 and 5, the device comprises side plates 1, a motor a33, a press roller A5, a press roller B6, a press roller C7, a press roller D8, a press roller E9, a press roller F10, a press roller G11, a support mechanism a36, a support mechanism B43, a driving mechanism 57, a raw material roller 68, a finished product roller 72 and a trolley mechanism 75, wherein, as shown in fig. 2, a press roller B6, a press roller D8, a press roller F10 and a press roller G11 which are driven by the motor a33 to sequentially thin a steel plate 73 are arranged between the two side plates 1 along the annular direction; the press roller B6 is matched with a press roller A5 in transmission connection with the press roller B, the press roller D8 is matched with a press roller C7 in transmission connection with the press roller D8, and a press roller E9 in transmission connection with the press roller F10 is matched with the press roller G11; as shown in fig. 1, 2 and 4, the two side plates 1 have a structure in which a formed steel sheet 73 is cut; as shown in fig. 2, 5, 7, two support mechanisms a36 for transferring the raw material rolls 68 from the carriage mechanism 75 to the two side plates 1 and positioning the raw material rolls 68 positioned on the side plates 1 and a support mechanism B43 for transferring the finished product rolls 72 for winding the formed steel sheet 73 from the carriage mechanism 75 to the two side plates 1 and positioning and supporting the finished product rolls 72 positioned on the side plates 1 are mounted on the two side plates 1; as shown in fig. 1, 5 and 6, a drive mechanism 57 for driving the finishing roller 72 to rotate is mounted on the side plate 1.
As shown in fig. 2, a guide roller 4 for guiding the steel plate 73 of the raw material roller 68 between the press roller A5 and the press roller B6 is installed between the two side plates 1, and the outer diameter of the guide roller 4 is greater than or equal to the outer diameter of the raw material roller 68.
As shown in fig. 4, a cutting roller a12 and a cutting roller B14 which are matched with each other are installed between the two side plates 1; the two cutter teeth 15 at both ends of the cutter roller B14 are fitted with the two cutting grooves 13 at both ends of the cutter roller a 12.
As shown in fig. 1, 2 and 3, a gear J30 and a sprocket F31 are mounted on a roller shaft on which the guide roller 4 is positioned; the gear J30 is meshed with a gear K32 on an output shaft of a motor A33 on the side plate 1; a roller shaft on which the press roller B6 is arranged is provided with a chain wheel E28, a roller shaft on which the press roller D8 is arranged is provided with a chain wheel D25, a roller shaft on which the press roller F10 is arranged is provided with a chain wheel C23, a roller shaft on which the press roller G11 is arranged is provided with a chain wheel B20, and a roller shaft on which the cutting roller B14 is arranged is provided with a chain wheel A17; the chain wheel A17, the chain wheel B20, the chain wheel C23, the chain wheel D25, the chain wheel E28 and the chain wheel F31 are in transmission connection through a chain 35; a gear I29 is arranged on a roller shaft where the press roller A5 is positioned, and the gear I29 is meshed with a gear H27 on the roller shaft where the press roller B6 is positioned; a gear G26 is arranged on a roller shaft where the press roller C7 is positioned, and the gear G26 is meshed with a gear F24 on the roller shaft where the press roller D8 is positioned; a gear D21 is arranged on a roller shaft where the press roller E9 is positioned, and the gear D21 is meshed with a gear E22 on the roller shaft where the press roller F10 is positioned and a gear C19 on the roller shaft where the press roller G11 is positioned; the roller shaft on which the cutting roller A12 is arranged is provided with a gear B18, and the gear B18 is meshed with a gear A16 on the roller shaft on which the cutting roller B14 is arranged.
As shown in fig. 3, two sprockets G34 are mounted on the side plate 1 such that the chain 35 covers the sprocket B20, the sprocket C23, and the sprocket D25.
As shown in fig. 2 and 3, the transmission ratio of the gear H27 to the gear I29 is equal to the radius ratio of the press roller B6 to the press roller A5, so as to ensure that the linear speeds of the press roller B6 and the press roller A5 are equal. The transmission ratio of the gear F24 to the gear G26 is equal to the radius ratio of the press roller D8 to the press roller C7, so that the linear speeds of the press roller C7 and the press roller D8 are equal. The transmission ratio of the gear E22 to the gear D21 is equal to the radius ratio of the press roller F10 to the press roller E9, so that the linear speeds of the press roller E9 and the press roller F10 are equal. The transmission ratio of the gear C19 to the gear D21 is equal to the radius ratio of the press roller G11 to the press roller E9, so that the linear speeds of the press roller E9 and the press roller G11 are equal. The transmission ratio of the gear A16 to the gear B18 is equal to the radius ratio of the cutting roller B14 to the cutting roller A12, so that the linear speeds of the cutting roller B14 and the cutting roller A12 are equal.
As shown in fig. 2 and 7, the supporting mechanism a36 includes a guide sleeve a37, a cross bar 38, a hoop block a39, a deflector rod a40, an electric push rod a41, and a hydraulic cylinder 42, wherein, as shown in fig. 2 and 7, the cross bar 38 is driven by the hydraulic cylinder 42 to slide horizontally in the guide sleeve a37 inside the corresponding side plate 1; the tail end of the cross rod 38 is hinged with a hoop block A39 which positions the corresponding end of a rotating shaft B70 where the raw material roller 68 is positioned at a clamping groove at the tail end of the cross rod 38, and an electric push rod A41 is hinged between a deflector rod A40 on the hoop block A39 and the cross rod 38.
As shown in fig. 2 and 8, the supporting mechanism B43 includes a rotating shaft a44, a turbine 45, a worm 46, a motor B47, a swing rod 48, a supporting rod 49, a collar block B50, a deflector rod B51, an electric push rod B52, a lock sleeve 53, a guide sleeve B54, a lock rod 55, and an electric push rod C56, wherein, as shown in fig. 2 and 8, two swing rods 48 are symmetrically installed on the rotating shaft a44 installed on the two side plates 1; the tail end of each swing rod 48 is provided with a support rod 49, the tail end of the support rod 49 is hinged with a hoop block B50 for positioning the corresponding end of a rotating shaft B70 where a finished product roller 72 is positioned in a clamping groove at the tail end of the support rod 49, an electric push rod B52 is hinged between a deflector rod B51 on the hoop block B50 and the support rod 49, and a lock rod 55 which is driven by an electric push rod C56 and matched with a lock sleeve 53 on the hoop block B50 is slidingly arranged in a guide sleeve B54 on the support rod 49; the worm wheel 45 on the rotating shaft A44 is meshed with the worm 46 arranged on the side plate 1, and the worm 46 is in transmission connection with the output shaft of the motor B47 on the side plate 1.
As shown in fig. 5 and 6, the driving mechanism 57 includes a guide seat 58, a sliding seat a59, a sleeve rod a60, an inner rod 61, a return spring 62, a sleeve rod B63, a gear L64, a gear M65, a motor C66, and an electric push rod D67, wherein, as shown in fig. 5 and 6, the sliding seat a59 driven by the electric push rod D67 slides horizontally along the axial direction of the rotating shaft a44 in the guide seat 58 on the side plate 1, the sleeve rod a60 is matched in the sliding seat a59 in a rotating manner, and the inner rod 61 slides axially in the sleeve rod a60 and is provided with the return spring 62 for resetting the inner rod 61; the end of the inner rod 61 is provided with a hexagonal groove matched with a hexagonal head 71 at the end of a rotating shaft B70 where the finished product roller 72 is positioned; the guide seat 58 is rotatably matched with a loop bar B63 which is axially and slidably matched with the loop bar A60; a gear M65 is mounted on an output shaft of a motor C66 mounted on the guide 58, and the gear M65 is engaged with a gear L64 on the sleeve rod B63.
As shown in fig. 9, the trolley mechanism 75 includes a saddle 76, wheels 77, a slide B78, a bracket 79, a rack 80, a gear N81, a motor D82, a transmission belt 83, and a motor E84, wherein the saddle 76 moving axially along the rotation axis a44 is provided with four wheels 77 that cooperate with the ground guide rail 74; the saddle 76 is provided with two sliding seats B78 which move towards and away from each other along the axial direction of the rotating shaft A44 synchronously, and each sliding seat B78 is provided with a bracket 79 which is inserted and assembled with the corresponding side rotating shaft B70 on the raw material roller 68 or the finished product roller 72; racks 80 are arranged on the two sliding seats B78, the two racks 80 are meshed with a gear N81 on the sliding seat B78, and the shaft where the gear N81 is positioned is in transmission connection with an output shaft of a motor D82 on the sliding seat B78; the carriage B78 is connected to a conveyor belt 83 driven by a motor E84 on the ground.
As shown in fig. 5 and 6, the raw material roller 68 or the finished product roller 72 is provided with a coaxial shaft sleeve 69, two ends of the shaft sleeve 69 are respectively inserted with a rotating shaft B70, and a flange on the rotating shaft B70 is connected with a flange on the shaft sleeve 69 through bolts.
As shown in fig. 2 and 3, the side plate 1 has a support groove 2 which is fitted to two rotation shafts B70 of the raw material roll 68.
The track in the invention can be designed for long-distance transmission according to the requirement.
The working flow of the invention is as follows: in the initial state, the raw material roller 68 is not mounted on the two support mechanisms a36, and the finished product roller 72 is not mounted on the support mechanism B43.
First, one raw material roll 68 wound with a steel plate 73 and one finished product roll 72 not wound with the steel plate 73 are respectively installed on two trolley mechanisms 75, and the process of installing the raw material roll 68 or the finished product roll 72 on the downward trolley mechanism is as follows:
the product roll 72 or the raw material roll 68 is lifted from the two rotating shafts B70 at both ends of the raw material roll 68 or the product roll 72 by a crane so that the two rotating shafts B70 at both ends of the product roll 72 or the raw material roll 68 are respectively opposite to the circular grooves on the two brackets 79 on the carriage mechanism 75.
The motor D82 in the trolley mechanism 75 is started, and the motor D82 drives the two brackets 79 to move in opposite directions through the two racks 80 and the sliding seat B78, so that the two rotating shafts B70 at the two ends of the finished product roller 72 or the raw material roller 68 are respectively inserted into the circular grooves on the two brackets 79, and the installation of the finished product roller 72 or the raw material roller 68 on the trolley mechanism 75 is completed.
Then, the motor E84 is started, the motor E84 drives the conveyor belt 83 to run, and the conveyor belt 83 drives the two carriage mechanisms 75 to move along the guide rail 74, so that the carriage mechanism 75 holding the product roller 72 is located at a position between the two side plates 1. Then, two electric push rods C56 in the supporting mechanism B43 are started, the two electric push rods C56 respectively drive the corresponding lock rods 55 to separate from the corresponding lock sleeves 53 to unlock the hoop blocks B50 and buckle the hoop on the supporting rods 49, and when the two electric push rods B52 are started, the two electric push rods B52 respectively drive the corresponding hoop blocks B50 to swing upwards through the corresponding deflector rods B51.
Then, the motor B47 is started, the motor B47 drives the rotating shaft a44 to rotate through the worm 46 and the turbine 45, the rotating shaft a44 drives the two support rods 49 to swing towards the two rotating shafts B70 of the finished product roller 72 through the two swing rods 48, when the clamping grooves at the tail ends of the two support rods 49 are nested on the rotating shafts B70 on the finished product roller 72, the electric push rods B52 are started, the electric push rods B52 drive the hoop blocks B50 through the deflector rods B51 to buckle the rotating shafts B70 on the support rods 49, then, the two electric push rods C56 are started, and the two electric push rods C56 respectively drive the corresponding lock rods 55 to be inserted into the corresponding lock sleeves 53 and lock the hoops B.
The motor D82 on the trolley mechanism 75 is started, and the motor D82 drives the two brackets 79 to move back to back and separate from the circular grooves on the two brackets 79 through a series of transmission.
And starting the motor B47, and driving the supporting rods 49 to swing back and reset through a series of transmission by the motor B47, and driving the finished product roller 72 to swing back and reset by the two supporting rods 49 to finally finish the installation of the finished product roller 72 between the two side plates 1.
Then, the motor E84 is started, and the motor E84 drives the two carriage mechanisms 75 to synchronously move by a distance of one parking space through the conveying belt 83, so that the carriage mechanism 75 with the raw material roller 68 is positioned between the two side plates 1.
The electric push rods A41 in the two supporting mechanisms A36 are started, and the two electric push rods A41 drive the hoop blocks A39 to swing upwards through the corresponding deflector rods A40 respectively. The hydraulic cylinders 42 in the two supporting mechanisms A36 are started, and the two hydraulic cylinders 42 respectively drive the corresponding cross bars 38 to move towards the rotating shafts B70 at the two ends of the raw material roller 68 along the horizontal direction. When the clamping groove at the tail end of the cross rod 38 is nested on the rotating shaft B70 at the corresponding end of the raw material roller 68, the electric push rod A41 is started, and the electric push rod A41 drives the hoop block A39 through the deflector rod A40 to buckle the rotating shaft B70 on the raw material roller 68 into the clamping groove on the cross rod 38.
The motor D82 of the carriage mechanism 75 with the stock roll 68 mounted thereon is activated, and the motor D82 drives the two brackets 79 to move in opposition and away from the spindle B70 by a series of transmissions. The hydraulic cylinders 42 in the two supporting mechanisms A36 are started, the two hydraulic cylinders 42 respectively drive the corresponding cross bars 38 to slide back and reset, and finally drive the two rotating shafts B70 of the raw material rollers 68 to be installed in the supporting grooves 2 on the side plates 1, and the raw material rollers 68 are installed between the two side plates 1.
When the finished product roller 72 and the raw material roller 68 are installed between the two side plates 1, an electric push rod D67 in the driving mechanism 57 is started, and the electric push rod D67 drives a hexagonal groove on the inner rod 61 to be inserted into a hexagonal head 71 of a corresponding end rotating shaft B70 on the finished product roller 72 through the sliding seat A59, the sleeve rod A60 and the reset spring 62.
The motor A33 is started, and the motor A33 drives the guide roller 4, the press roller A5, the press roller B6, the press roller C7, the press roller D8, the press roller E9, the press roller F10, the press roller G11, the cutting roller A12 and the cutting roller B14 to rotate through a series of transmission. At the same time, the motor C66 in the driving mechanism 57 is started, and the motor C66 rotates the finishing roller 72 through one rotation axis B70 of the gear M65, the gear L64, the sleeve rod B63, the sleeve rod a60, the inner rod 61 and the finishing roller 72.
The end of the steel plate 73 on the raw material roller 68 is pulled between the press roller A5 and the press roller B6 through the guide roller 4, and the steel plate 73 is preliminarily thinned and the raw material roller 68 is driven to rotate to discharge the steel plate 73 in the process of pulling the steel plate 73 by the press roller A5 and the press roller B6. After the steel plate 73 passes through the press roller A5 and the press roller B6, the primarily thinned steel plate 73 is drawn between the press roller C7 and the press roller D8 for the second thinning. After the steel plate 73 passes through the press roller C7 and the press roller D8, the steel plate 73 thinned by the second time is drawn between the press roller E9 and the press roller F10 for the third time thinning. After the steel plate 73 passes through the press roller E9 and the press roller F10, the steel plate 73 thinned by the third time is drawn between the press roller E9 and the press roller G11 for final thinning. After the steel sheet 73 passes through the press roller E9 and the press roller G11, the finally thinned steel sheet 73 is pulled between the cutter roller a12 and the cutter roller B14 for edge cutting. The cut-edge steel plate 73 is drawn and wound around the finishing roller 72. The rotating finishing roller 72 actively winds the steel plate 73.
When the feeding of the steel sheet 73 on the raw material roll 68 is completed, the finishing roll 72 completes winding of the processed and ironed steel sheet 73.
Then, the electric push rod D67 in the driving mechanism 57 is started first to drive the inner rod 61 to disconnect from the rotation shaft B70 of the finishing roller 72. The motor B47 in the supporting mechanism B43 is started, the motor B47 drives the finished product roller 72 wound with the steel plate 73 to be arranged between the two brackets 79 of one trolley mechanism 75 through a series of transmission, the motor D82 in the trolley mechanism 75 is started, the motor D82 drives the two brackets 79 to move towards each other, and the two rotating shafts B70 at the two ends of the finished product roller 72 are respectively inserted into the circular grooves on the two brackets 79.
Two electric pushers C56 in the support mechanism B43 are activated so that the two hoop blocks B50 are unlocked, and when the two electric pushers B52 are activated, the two hoop blocks B50 are opened. The motor B47 in the supporting mechanism B43 is reversely started, the motor B47 drives the two supporting rods 49 to swing upwards for resetting, the two electric push rods B52 are started, the two hoop blocks B50 are closed, the two electric push rods C56 are started, and the two locking rods 55 are inserted into the corresponding locking sleeves 53 to lock the hoop blocks B50.
Then, the other empty trolley mechanism 75 is moved to a position between the two side plates 1, the hydraulic cylinders 42 in the two supporting mechanisms A36 are started, the two hydraulic cylinders 42 drive the two cross bars 38 to drive the raw material rollers 68 to a position between the two brackets 79 of the trolley mechanism 75, the motor D82 in the trolley mechanism 75 is started, the motor D82 drives the two brackets 79 to move towards each other, and the two rotating shafts B70 at the two ends of the raw material rollers 68 are respectively inserted into the circular grooves on the two brackets 79.
Two electric push rods A41 are started, and the two electric push rods A41 drive the hoop block A39 to be opened through corresponding shifting rods A40 respectively.
Finally, two hydraulic cylinders 42 are started, the two hydraulic cylinders 42 drive the two cross bars 38 to slide back and reset, and then the electric push rod A41 is started to drive the two hoop blocks A39 to close.
The compression roller A5 to the compression roller G11, the cutting roller A12, the cutting roller B14, the finished product roller 72 and the raw material roller 68 are arranged between the two side plates 1 in annular distribution, so that the occupied space of equipment in a factory building is reduced, and the space of the factory building is effectively saved.
The invention can complete the feeding of the raw material roller 68 from the trolley mechanism 75 serving as a transmission structure to the space between the two side plates 1 through the two supporting mechanisms A36 arranged on the two side plates 1, and simultaneously, the invention can complete the discharging of the finished product roller 72 from the two side plates 1 to the trolley mechanism 75 serving as the transmission structure through the supporting mechanism B43, so that the invention can complete the two procedures of feeding and discharging only through one set of transmission structure of the two trolley mechanisms 75 moving on the guide rail 74, thereby reducing the equipment cost.
In summary, the beneficial effects of the invention are as follows: the press rolls A5 to G11, the cutting roll A12, the cutting roll B14, the finished product roll 72 and the raw material roll 68 are arranged between the two side plates 1 in annular distribution, so that the occupied space of equipment in a factory building is reduced, and the space of the factory building is effectively saved.
The invention can complete the feeding of the raw material roller 68 from the trolley mechanism 75 serving as a transmission structure to the space between the two side plates 1 through the two supporting mechanisms A36 arranged on the two side plates 1, and simultaneously, the invention can complete the discharging of the finished product roller 72 from the two side plates 1 to the trolley mechanism 75 serving as the transmission structure through the supporting mechanism B43, so that the invention can complete the two procedures of feeding and discharging only through one set of transmission structure of the two trolley mechanisms 75 moving on the guide rail 74, thereby reducing the equipment cost.

Claims (8)

1. An annular cold rolling mill, characterized in that: the steel plate rolling machine comprises side plates, a motor A, a press roller B, a press roller C, a press roller D, a press roller E, a press roller F, a press roller G, a supporting mechanism A, a supporting mechanism B, a driving mechanism, a raw material roller, a finished product roller and a trolley mechanism, wherein the press roller B, the press roller D, the press roller F and the press roller G which are driven by the motor A to sequentially thin a steel plate are arranged between the two side plates along the annular direction; the compression roller B is matched with a compression roller A in transmission connection with the compression roller B, the compression roller D is matched with a compression roller C in transmission connection with the compression roller D, and a compression roller E in transmission connection with the compression roller F is matched between the compression roller F and the compression roller G; a structure for cutting edges of the formed thin steel plate is arranged between the two side plates; the two side plates are provided with two supporting mechanisms A for transferring the raw material rollers from the trolley mechanism to the two side plates and positioning the raw material rollers positioned on the side plates and a supporting mechanism B for transferring the finished product rollers used for winding and forming the thin steel plates from the trolley mechanism to the two side plates and positioning and supporting the finished product rollers positioned on the side plates; the side plate is provided with a driving mechanism for driving the finished product roller to rotate;
the supporting mechanism A comprises a guide sleeve A, a cross rod, a hoop block A, a deflector rod A, an electric push rod A and a hydraulic cylinder, wherein the cross rod horizontally slides in the guide sleeve A at the inner side of the corresponding side plate under the drive of the hydraulic cylinder; the tail end of the cross rod is hinged with a hoop block A for positioning the corresponding end of a rotating shaft B where the raw material roller is positioned in a clamping groove at the tail end of the cross rod, and an electric push rod A is hinged between a deflector rod A on the hoop block A and the cross rod;
the supporting mechanism B comprises a rotating shaft A, a turbine, a worm, a motor B, a swing rod, a supporting rod, a hoop block B, a deflector rod B, an electric push rod B, a lock sleeve, a guide sleeve B, a lock rod and an electric push rod C, wherein the rotating shaft A arranged on two side plates is symmetrically provided with two swing rods; a supporting rod is arranged at the tail end of each swing rod, a hoop block B for positioning the corresponding end of a rotating shaft B where a finished product roller is positioned at a clamping groove at the tail end of the supporting rod is hinged at the tail end of the supporting rod, an electric push rod B is hinged between a deflector rod B on the hoop block B and the supporting rod, and a lock rod driven by the electric push rod C and matched with a lock sleeve on the hoop block B is arranged in a sliding manner in a guide sleeve B on the supporting rod; the worm wheel on the rotating shaft A is meshed with the worm arranged on the side plate, and the worm is in transmission connection with the output shaft of the motor B on the side plate.
2. An annular cold rolling mill according to claim 1, wherein: and a guide roller for guiding the steel plate on the raw material roller into the space between the press roller A and the press roller B is arranged between the two side plates, and the outer diameter of the guide roller is larger than or equal to that of the raw material roller.
3. An annular cold rolling mill according to claim 2, characterized in that: a cutting roller A and a cutting roller B which are matched with each other are arranged between the two side plates; two cutter teeth at two ends of the cutting roller B are matched with two cutting grooves at two ends of the cutting roller A.
4. A ring cold rolling mill according to claim 3, characterized in that: a gear J and a chain wheel F are arranged on a roll shaft where the guide roll is positioned; the gear J is meshed with a gear K on an output shaft of the motor A on the side plate; a roller shaft on which the press roller B is arranged is provided with a chain wheel E, a roller shaft on which the press roller D is arranged is provided with a chain wheel D, a roller shaft on which the press roller F is arranged is provided with a chain wheel C, a roller shaft on which the press roller G is arranged is provided with a chain wheel B, and a roller shaft on which the cutting roller B is arranged is provided with a chain wheel A; the chain wheel A, the chain wheel B, the chain wheel C, the chain wheel D, the chain wheel E and the chain wheel F are connected through chain transmission; a gear I is arranged on the roller shaft where the press roller A is positioned, and the gear I is meshed with a gear H on the roller shaft where the press roller B is positioned; a gear G is arranged on a roller shaft where the press roller C is positioned, and the gear G is meshed with a gear F on the roller shaft where the press roller D is positioned; a gear D is arranged on the roller shaft where the press roller E is positioned, and the gear D is meshed with a gear E on the roller shaft where the press roller F is positioned and a gear C on the roller shaft where the press roller G is positioned; the roller shaft where the cutting roller A is positioned is provided with a gear B which is meshed with the gear A on the roller shaft where the cutting roller B is positioned.
5. An annular cold rolling mill according to claim 4, wherein: two chain wheels G which enable the chain to cover the chain wheel B, the chain wheel C and the chain wheel D are arranged on the side plates.
6. An annular cold rolling mill according to claim 4, wherein: the transmission ratio of the gear H to the gear I is equal to the radius ratio of the press roller B to the press roller A; the transmission ratio of the gear F to the gear G is equal to the radius ratio of the press roller D to the press roller C; the transmission ratio of the gear E to the gear D is equal to the radius ratio of the press roller F to the press roller E; the transmission ratio of the gear C to the gear D is equal to the radius ratio of the press roller G to the press roller E; the transmission ratio of the gear A to the gear B is equal to the radius ratio of the cutting roller B to the cutting roller A.
7. An annular cold rolling mill according to claim 1, wherein: the driving mechanism comprises a guide seat, a sliding seat A, a sleeve rod A, an inner rod, a return spring, a sleeve rod B, a gear L, a gear M, a motor C and an electric push rod D, wherein the sliding seat A driven by the electric push rod D horizontally slides in the axial direction of a rotating shaft A in the guide seat on a side plate, the sleeve rod A is matched with the sliding seat A in a rotating way, and the inner rod is axially slid in the sleeve rod A and provided with the return spring for resetting the inner rod; the tail end of the inner rod is provided with a hexagonal groove matched with the hexagonal head at the tail end of the rotating shaft B where the finished product roller is positioned; the guide seat is rotationally matched with a loop bar B which is axially and slidably matched with the loop bar A; the output shaft of the motor C arranged on the guide seat is provided with a gear M which is meshed with a gear L on the loop bar B.
8. An annular cold rolling mill according to claim 1, wherein: the trolley mechanism comprises a saddle, wheels, a sliding seat B, a bracket, a rack, a gear N, a motor D, a transmission belt and a motor E, wherein the saddle which moves along the axial direction of a rotating shaft A is provided with four wheels matched with a ground guide rail; two sliding seats B are arranged on the saddle and move oppositely or oppositely along the axial direction of the rotating shaft A in a synchronous way, and each sliding seat B is provided with a bracket which is inserted and assembled with the corresponding side rotating shaft B on the raw material roller or the finished product roller; racks are arranged on the two sliding seats B, the two racks are meshed with a gear N on the sliding seat B, and a shaft where the gear N is positioned is in transmission connection with an output shaft of a motor D on the sliding seat B; the slide B is connected with a conveying belt driven by a motor E on the ground.
CN202310754005.2A 2023-06-26 2023-06-26 Annular cold rolling mill Active CN116713318B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310754005.2A CN116713318B (en) 2023-06-26 2023-06-26 Annular cold rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310754005.2A CN116713318B (en) 2023-06-26 2023-06-26 Annular cold rolling mill

Publications (2)

Publication Number Publication Date
CN116713318A CN116713318A (en) 2023-09-08
CN116713318B true CN116713318B (en) 2023-12-05

Family

ID=87871378

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310754005.2A Active CN116713318B (en) 2023-06-26 2023-06-26 Annular cold rolling mill

Country Status (1)

Country Link
CN (1) CN116713318B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3835681A (en) * 1973-03-16 1974-09-17 Wean United Inc Continuous rolling mill
DE10134285A1 (en) * 2000-11-11 2003-01-30 Carl Wezel Fa Metal strip profiling process, involves pressing a roll into a tensioned strip and then rotating the roll and moving a plate simultaneously below the plate
CN204583858U (en) * 2015-01-23 2015-08-26 合肥市百胜科技发展股份有限公司 Rolling-mill housing
CN108906888A (en) * 2018-07-04 2018-11-30 山西太钢不锈钢股份有限公司 Stainless-steel cold-rolling strip production equipment
CN110355204A (en) * 2019-07-22 2019-10-22 朱良彬 A kind of stainless steel band cold-rolling process
CN114798746A (en) * 2022-06-28 2022-07-29 南通霄阳机械有限公司 Cold rolling processing apparatus that fine work steel preparation was used

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3835681A (en) * 1973-03-16 1974-09-17 Wean United Inc Continuous rolling mill
DE10134285A1 (en) * 2000-11-11 2003-01-30 Carl Wezel Fa Metal strip profiling process, involves pressing a roll into a tensioned strip and then rotating the roll and moving a plate simultaneously below the plate
CN204583858U (en) * 2015-01-23 2015-08-26 合肥市百胜科技发展股份有限公司 Rolling-mill housing
CN108906888A (en) * 2018-07-04 2018-11-30 山西太钢不锈钢股份有限公司 Stainless-steel cold-rolling strip production equipment
CN110355204A (en) * 2019-07-22 2019-10-22 朱良彬 A kind of stainless steel band cold-rolling process
CN114798746A (en) * 2022-06-28 2022-07-29 南通霄阳机械有限公司 Cold rolling processing apparatus that fine work steel preparation was used

Also Published As

Publication number Publication date
CN116713318A (en) 2023-09-08

Similar Documents

Publication Publication Date Title
US6233994B1 (en) Apparatus for and method of processing billets in a rolling mill
US4005830A (en) Mandrelless downcoiler for coil box
EP3181252B1 (en) Winding/unwinding device and method for positioning a winding/unwinding device in an inactive position
CN101386133B (en) Cold rolling ribbed bar continuous production device
US4019359A (en) Method of hot rolling metal strip
CN116713318B (en) Annular cold rolling mill
CN101007325A (en) Wide and thick coils composite leveling machine
EP0406249A1 (en) Installation for manufacturing hot-rolled steel strip.
CN104772405A (en) Edge rolling method of edge rolling machine
CN216335522U (en) Coiling device
EP0576890B1 (en) Assembly to wind-unwind thin slabs
RU2378061C2 (en) Method of products continuous rolling, out from first stand of mill at rate, exceeding intake velocity of second stand
CN205270429U (en) Device for preventing coil of strip head loose winding
CN212101154U (en) Cutting machine upset coiling mechanism
CN213265027U (en) Conveying and transferring system for wire rod coils
CN113680824B (en) Double-station mandrel circulation stop rolling process and device for hot-rolled seamless pipe and application of double-station mandrel circulation stop rolling process and device
CN201500704U (en) Hot bending flange winding machine
US3240043A (en) Hot strip down coiler
CN210176101U (en) Steel band coiling mechanism is used in processing of orderly auto-parts of rolling
CN111422653A (en) Automatic winding machine
DE3030382A1 (en) METHOD AND DEVICE FOR HOT ROLLING METAL WORKPIECES TO STRIP OR PLATES
CN215032317U (en) Hot-rolled strip coiling device, coiling and uncoiling system and coiling device arrangement structure
CN218340689U (en) Horizontal feeding and rotary distributing device for cold-rolled steel bars
CN112139264B (en) Conveying and transferring system for wire rod coils
CN211613946U (en) Spiral pipe coiling equipment

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

Denomination of invention: A ring-shaped cold rolling mill

Granted publication date: 20231205

Pledgee: Lingqiao sub branch of Zhejiang Fuyang Rural Commercial Bank Co.,Ltd.

Pledgor: Hangzhou Fuyang Lili cold rolling Co.,Ltd.

Registration number: Y2024980000126

PE01 Entry into force of the registration of the contract for pledge of patent right