CN114570771A - Multi-roll numerical control cold rolling mill - Google Patents
Multi-roll numerical control cold rolling mill Download PDFInfo
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- CN114570771A CN114570771A CN202210129355.5A CN202210129355A CN114570771A CN 114570771 A CN114570771 A CN 114570771A CN 202210129355 A CN202210129355 A CN 202210129355A CN 114570771 A CN114570771 A CN 114570771A
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- 238000005097 cold rolling Methods 0.000 title claims abstract description 37
- 238000005096 rolling process Methods 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 230000000670 limiting effect Effects 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 238000004381 surface treatment Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 2
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- 238000012423 maintenance Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010731 rolling oil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The invention belongs to the technical field of cold rolling mills, in particular to a multi-roll numerical control cold rolling mill, which comprises a top plate, an upper machine body, a lower machine body and a support, wherein an upper roll system mechanism is arranged in an upper frame and comprises an A supporting roll, a B supporting roll, a C supporting roll, a middle roll, a secondary working roll and an upper working roll, the A supporting roll, the B supporting roll and the C supporting roll are in rolling connection with the upper frame through a plurality of bearings and saddles, the A supporting roll and the B supporting roll are in rolling connection with the middle roll, the B supporting roll and the C supporting roll are in rolling connection with the secondary working roll, the secondary working roll is in rolling connection with the middle roll, the secondary working roll and the middle roll are in rolling connection with the upper working roll, the diameter of the secondary working roll is larger than that of the middle roll, one middle roll of a conventional twelve-roll cold rolling mill is changed into the secondary working roll through the design of the upper roll system mechanism and the cooperation of the support and a hydraulic cylinder, so that one roll has two purposes, meanwhile, the roll changing time of the conventional multi-roll cold rolling mill is greatly reduced, the working time is saved, and the working efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of cold rolling mills, and particularly relates to a multi-roll numerical control cold rolling mill.
Background
Due to the development of national economy, the demand of various industries on various thin metal and alloy strips and extremely thin strips is rapidly increased, and the quality requirements on the thin strips and the extremely thin strips are higher and higher. Aluminum, tantalum and beryllium bronze foils with the thickness of 1-3 mu m are required in some elements of electric appliances and instruments, and the production of the strips or foils by a four-roll mill is not economical and can not be realized technically. In addition, since the work rolls have a small diameter and a small contact deformation region, and the corresponding rolling force is small, a large reduction can be generated by the same rolling pressure. However, in the case of a four-high rolling mill, when the roll diameter of the work rolls is small, the rigidity and strength in the rolling direction thereof cannot satisfy the requirements of the rolling process, and therefore, must be supported. This results in different forms of multi-roll mills and multi-roll rolling techniques. The multi-roll rolling technology is mainly used for rolling production of cold-rolled sheets and thin strips of high-strength steel and precision alloys. It is a special position in the production of thin strip, of which more than about 10% are multi-roll mills in the cold rolling mills producing thin strip. Almost all stainless steel sheets are produced by a multi-roll mill, and the multi-roll mill is also used for producing thin strips of electrical steel sheets, superhard metals, aluminum alloys, copper alloys, and the like.
Most of the existing multi-roll cold rolling mills need to replace working rolls when different plates need to be processed, namely, a frame is lifted, the original working rolls are taken down by a crane, new working rolls are installed by the crane, and the frame is reset to complete roll replacement.
Disclosure of Invention
The invention aims to provide a multi-roll numerical control cold rolling mill, which aims to solve the problems that most of the existing multi-roll cold rolling mills need to replace working rolls when different plates need to be processed, namely, a frame is lifted, an original working roll is taken down by a crane, a new working roll is installed by the crane, and the frame is reset to finish roll replacement.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a multi-roll numerical control cold rolling mill, includes the roof, goes up the organism, organism and support down, go up the organism inside through four main hydraulic cylinder fixedly connected with upper frame that are the cross and distribute, the inside fixed connection lower frame of organism down, the equal detachably fixedly connected with end cover in both ends around upper frame and the lower frame, be provided with roller system mechanism, its characterized in that in the upper frame: go up roller system mechanism and include A backing roll, B backing roll, C backing roll, middle roll, vice working roll and last working roll, the A backing roll of telling, B backing roll and C backing roll pass through a plurality of bearing and saddle and last frame roll connection, A backing roll and B backing roll all with middle roll connection, B backing roll and C backing roll all with vice working roll connection, vice working roll and middle roll all with last working roll connection, vice working roll diameter is greater than middle roll diameter, the both ends of A backing roll, B backing roll, C backing roll, vice working roll and middle roll all run through the front and back end cover and pass through the bearing roll connection with the position of running through, go up the working roll both ends and have two axle head covers through bearing detachably roll connection, the axle head cover is through setting up the lug in the side, The strong spring and the bolt are fixedly connected with the front side of the upper frame, and a clamping hook is fixedly arranged on the left portion of the front side of the upper frame.
Preferably, the bottom of the top plate is fixedly connected with supports arranged on the front side and the rear side of the machine body, the top plate is connected with a sliding plate through a sliding groove in the bottom of the top plate in a sliding mode, a horizontal hydraulic cylinder is fixedly connected to the side face of the top plate, a hydraulic rod of the horizontal hydraulic cylinder penetrates through the side wall of the top plate and is fixedly connected with the sliding plate through a connecting rod, two vertical hydraulic cylinders are fixedly connected to the bottom of the sliding plate in a bilateral symmetry mode, the hydraulic rod of each vertical hydraulic cylinder is fixedly connected with the upper machine body through a connecting rod, a limiting groove is formed in the upper portion of each support, limiting rods are fixedly connected to the front face and the rear face of the upper machine body, and the limiting rods are located in the limiting grooves of the supports and are connected with the side walls of the limiting grooves in a sliding mode.
Preferably, a lower roll system mechanism is arranged in the lower frame, the lower roll system mechanism comprises a lower working roll and a D supporting roll which are mutually connected in a rolling way, the two ends of the lower working roll and the D supporting roll penetrate through the front end cover and the rear end cover and are in rolling connection with the penetrating positions through bearings, the top of the lower frame is fixedly connected with a cooling plate, one side of the cooling plate close to the upper working roll is vertically and symmetrically hinged with a pair of oil nozzles, the oil nozzle is connected with an external oil supply system through pipelines arranged in the lower frame and the lower machine body, the interior of the cooling plate is provided with small guide posts which are vertically and symmetrically arranged, two ends of each small guide post penetrate through the front side and the rear side of the cooling plate and are in rolling connection with the penetrating positions through bearings, the left side and the right side of the upper surface of the lower machine body are symmetrically provided with guide blocks, the upper surface of each guide block is provided with a plurality of large guide posts, two ends of the large guide pillar penetrate through the front side and the rear side of the guide block and are in rolling connection with the penetrating position through bearings.
Preferably, the C supporting roller and the middle roller adopt the same surface treatment process, the upper working roller, the lower working roller and the auxiliary working roller adopt the same surface treatment process, and the lowest end of the upper working roller is lower than that of the auxiliary working roller when the upper roller system mechanism is in a matching state.
Preferably, the lengths of the supporting roller A, the supporting roller B and the supporting roller C are smaller than that of the auxiliary working roller, the length of the auxiliary working roller is smaller than that of the upper working roller, and the length of the upper working roller is equal to that of the lower working roller.
Preferably, the rear ends of the supporting roller A, the supporting roller B, the supporting roller C and the supporting roller D are connected with an external main motor unit through components such as an external universal coupling and a gear box, and the external main motor unit, the main hydraulic cylinder, the horizontal hydraulic cylinder and the vertical hydraulic cylinder are all controlled by an AGC system.
Compared with the prior art, the invention has the beneficial effects that:
1. through the design of the upper roll system mechanism and the matching of the support and the hydraulic cylinder, a middle roll of the conventional twelve-roll cold rolling mill is replaced by the auxiliary working roll, so that the dual-purpose of one roll is realized, and the axial fixation of each roll is added, so that the supporting force of the roll system structure is still enough under the condition that the auxiliary working roll works, the roll changing time of the conventional multi-roll cold rolling mill is greatly reduced, the working time is saved, and the working efficiency is improved.
2. When the auxiliary working roll is used for working, the A supporting roll and the middle roll are in an idle running no-load state, the abrasion of a roll system mechanism is reduced to a certain extent, the service life is prolonged, the maintenance cost is reduced, in addition, the axial direction of the upper working roll is not provided with a fixed position, after the auxiliary working roll finishes working, different upper working rolls and shaft end covers can be replaced in a certain diameter range, the relative positions of the upper machine body and the lower machine body are adjusted through hydraulic cylinders, the cold rolling mill can normally work, the flexibility and the adaptability of the cold rolling mill are greatly improved, and the multiple purposes of one machine are realized.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a side elevation, partially cut away view of the present invention;
FIG. 3 is a front view, partially in cross-section, of the upper work roll of the present invention in its operative condition, without the inclusion of a bracket;
fig. 4 is a front view partially in section showing a working state of the sub work roll of the present invention not including the bracket.
In the figure: the hydraulic control device comprises a top plate 1, a sliding plate 11, a horizontal hydraulic cylinder 12, a vertical hydraulic cylinder 13, an upper machine body 2, a limiting rod 21, a lower machine body 3, a cooling plate 31, an oil nozzle 311, a small guide pillar 312, a guide block 32, a large guide pillar 321, a support 4, a limiting groove 41, a main hydraulic cylinder 5, an upper frame 6, an A support roller 61, a B support roller 62, a C support roller 63, a middle roller 64, a sub working roller 65, an upper working roller 66, an axle end cover 661, a strong spring 662, a clamping hook 663, a lower machine frame 7, a lower working roller 71, a D support roller 72 and an end cover 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 to 4, in an embodiment of the present invention, a multi-roll numerical control cold rolling mill includes a top plate 1, an upper body 2, a lower body 3 and a support 4, an upper frame 6 is fixedly connected to the inside of the upper body 2 through four main hydraulic cylinders 5 distributed in a cross shape, the main hydraulic cylinders 5 are used for providing a pressing force required for rolling, a lower frame 7 is fixedly connected to the inside of the lower body 3, end caps 8 are detachably and fixedly connected to front and rear ends of the upper frame 6 and the lower frame 7, an upper roll system mechanism is disposed in the upper frame 6, the upper roll system mechanism includes an a support roll 61, a B support roll 62, a C support roll 63, a middle roll 64, a sub-work roll 65 and an upper work roll 66, the a support roll 61, the B support roll 62 and the C support roll 63 are in rolling connection with the upper frame 6 through a plurality of bearings and saddles, the a support roll 61 and the B support roll 62 are in rolling connection with the middle roll 64, the B support roll 62 and the C support roll 63 are in rolling connection with the sub-work roll 65, the auxiliary working roll 65 is in rolling connection with the middle roll 64, the diameter of the auxiliary working roll 65 is larger than that of the middle roll 64, so that the middle roll 64 cannot interfere with the auxiliary working roll 65 when the auxiliary working roll 65 works, the auxiliary working roll 65 and the middle roll 64 are in rolling connection with the upper working roll 66, the A supporting roll 61, the B supporting roll 62, the C supporting roll 63, two ends of the auxiliary working roll 65 and the middle roll 64 penetrate through the front end cover and the rear end cover 8 and are in rolling connection with the penetrating positions through bearings, two ends of the upper working roll 66 are detachably in rolling connection with two shaft end covers 661 through bearings, the shaft end covers 661 are fixedly connected with the front side of the upper frame 6 through lifting lugs arranged on the side face, strong springs 662 and bolts, and a clamping hook 663 is fixedly arranged on the left portion of the front side of the upper frame 6.
As an embodiment of the invention, the bottom of a top plate 1 is fixedly connected with brackets 4 arranged at the front side and the rear side of a cold rolling mill, the top plate 1 is connected with a sliding plate 11 in a sliding way through a sliding chute arranged at the bottom of the top plate 1, the side surface of the top plate 1 is fixedly connected with a horizontal hydraulic cylinder 12, a hydraulic rod of the horizontal hydraulic cylinder 12 penetrates through the side wall of the top plate 1 and is fixedly connected with the sliding plate 11 through a connecting rod, the bottom of the sliding plate 11 is fixedly connected with two vertical hydraulic cylinders 13 in a bilateral symmetry way, the hydraulic rod of the vertical hydraulic cylinder 13 is fixedly connected with an upper machine body 2 through the connecting rod, in the rolling process, the horizontal hydraulic cylinder 12 and the vertical hydraulic cylinder 13 need to maintain pressure to provide necessary limiting action and rolling pressing force, a limiting groove 41 is formed above the bracket 4, the front surface and the rear surface of the upper machine body 2 are fixedly connected with limiting rods 21, and the limiting rods 21 are positioned in the limiting groove 41 of the bracket 4 and are in sliding connection with the side wall of the limiting groove 41.
When the cold rolling mill needs to change rolls, the vertical hydraulic cylinder 13 is started to lift the upper machine body 2, the front end cover 8 is taken down, then the springs on the lifting lugs of the shaft end covers 661 at the two ends of the upper working roll 66 are taken down and placed on the clamping hooks 663 of the front end surface of the upper machine frame 6 to be fixed, the shaft end covers 661 are taken down, then the upper working roll 66 is taken down by using the traveling crane, then the front end cover 8 is installed, the horizontal hydraulic cylinder 12, the vertical hydraulic cylinder 13 and the main hydraulic cylinder 5 are controlled by using a numerical control system to work, the upper machine frame 6 is moved towards the lower left side by matching the support 4 with the sliding plate 11 in the top plate 1, so that the auxiliary working roll 65 and the lower working roll 71 start to work in a matching way, the main hydraulic cylinder 5 is adjusted according to the production requirement, the auxiliary working roll 65 reaches the required position, the roll change can be completed, when the auxiliary working roll 65 is used, the A supporting roll 61 and the middle roll 64 are in an idle non-load state, thereby reducing the abrasion of the roll system mechanism to a certain extent, the service life is prolonged, and the maintenance cost is reduced; through the design of the upper roll system mechanism and the matching of the bracket 4 and the hydraulic cylinder, one middle roll 64 of the conventional twelve-roll cold rolling mill is replaced by the auxiliary working roll 65, so that the dual-purpose of one roll is realized, and the axial fixation of each roll is added, so that the supporting force of the roll system structure is still sufficient under the condition that the auxiliary working roll 65 works, the roll changing time of the conventional multi-roll cold rolling mill is greatly reduced, the working time is saved, and the working efficiency is improved; in addition, the axial direction of the upper working roll 66 has no fixed position, after the auxiliary working roll 65 finishes working, the upper working roll 66 and the shaft end cover 661 with different diameters can be replaced, the relative positions of the upper machine body 2 and the lower machine body 3 can be adjusted through the hydraulic cylinders, so that the cold rolling mill can normally work, the flexibility and the adaptability of the cold rolling mill are greatly improved, and the multiple purposes of one machine are realized.
As an embodiment of the invention, a lower roll system mechanism is arranged in a lower frame 7, the lower roll system mechanism comprises a lower working roll 71 and a D supporting roll 72 which are mutually connected in a rolling way, two ends of the lower working roll 71 and the D supporting roll 72 both penetrate through a front end cover 8 and a rear end cover 8 and are connected with a penetrating position in a rolling way through a bearing, a cooling plate 31 is fixedly connected with the top of the lower frame 7, one side of the cooling plate 31 close to an upper working roll 66 is vertically and symmetrically hinged with a pair of oil nozzles 311, the angle of the oil nozzles 311 can be correspondingly adjusted according to processing requirements, the oil nozzles 311 are connected with an external oil supply system through pipelines arranged in the lower frame 7 and a lower machine body 3, small guide columns 312 are symmetrically arranged in the cooling plate 31 up and down, two ends of the small guide columns 312 both penetrate through the front side and the rear side of the cooling plate 31 and are connected with the penetrating position in a rolling way through the bearing, the oil nozzles 311 on the cooling plate 31 spray cold rolling oil to a plate in a working state of a cold rolling machine, set up simultaneously and also played certain direction limiting displacement in little guide pillar 312 of inside, the symmetry of the 3 upper surfaces left and right sides of lower organism is provided with guide block 32, and guide block 32 upper surface is provided with a plurality of big guide pillars 321, and big guide pillar 321 both ends all run through guide block 32 around both sides and with run through the position and pass through bearing rolling connection, big guide pillar 321 plays the guide effect when panel business turn over cold rolling mill.
In one embodiment of the present invention, the B support roller 62, the C support roller 63 and the middle roller 64 all use the same surface treatment process, the upper working roller 66, the lower working roller 71 and the auxiliary working roller 65 all use the same surface treatment process to ensure that each roller can bear the corresponding working role in the two working states, and the lowest end of the upper working roller 66 is lower than the lowest end of the auxiliary working roller 65 in the matching state of the upper roller system mechanism to ensure that the auxiliary working roller 65 does not interfere with the upper working roller 66 when the upper working roller 66 works.
As an embodiment of the invention, the lengths of the A supporting roller 61, the B supporting roller 62 and the C supporting roller 63 are smaller than that of the secondary working roller 65, the length of the secondary working roller 65 is smaller than that of the upper working roller 66, and the lengths of the upper working roller 66 and the lower working roller 71 are equal, so that interference is avoided in the installation process, and the upper working roller 66 is convenient to detach and replace.
In one embodiment of the present invention, the rear ends of the a support roller 61, the B support roller 62, the C support roller 63 and the D support roller 72 are connected to an external main motor unit through an external universal coupling, a gear box, etc., the external main motor unit, the main hydraulic cylinder 5, the horizontal hydraulic cylinder 12 and the vertical hydraulic cylinder 13 are controlled by an AGC system, the external main motor unit can correctly transmit power to the cold rolling mill in two working states by using the universal coupling, and the AGC system can automatically adjust the power of each hydraulic cylinder and the rotating speed output of the main motor unit according to various data in the working states.
The working principle is as follows: when the cold rolling mill needs roll changing, starting the vertical hydraulic cylinder 13 to lift the upper machine body 2, taking down the front end cover 8, then taking down the strong springs 662 on the lifting lugs of the end covers 661 at the two ends of the upper working roll 66, placing the lifting lugs on the hooks 663 on the front end surface of the upper frame 6 for fixing, taking down the end covers 661, then taking down the upper working roll 66 by using the traveling crane, then installing the front end cover 8, controlling the horizontal hydraulic cylinder 12, the vertical hydraulic cylinder 13 and the main hydraulic cylinder 5 to work by using a numerical control system, moving the upper frame 6 to the lower left by matching the support 4 with the sliding plate 11 in the top plate 1, enabling the auxiliary working roll 65 and the lower working roll 71 to start to work in a matching way, adjusting the main hydraulic cylinder 5 according to production requirements, and enabling the auxiliary working roll 65 to reach a required position, thus finishing roll changing; in addition, the axial direction of the upper working roll 66 has no fixed position, after the auxiliary working roll 65 finishes working, the upper working roll 66 and the shaft end cover 661 with different specifications can be changed within a certain diameter range, and the relative positions of the upper machine body 2 and the lower machine body 3 are adjusted through the hydraulic cylinders, so that the cold rolling mill can process products with different requirements, the flexibility and the adaptability of the cold rolling mill are greatly improved, and the multiple purposes of one machine are realized.
The technical features of the above embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist, the above embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but cannot therefore be understood as a limitation to the scope of the invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which are within the protection scope of the present invention; therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. The utility model provides a multi-roll numerical control cold rolling mill, includes roof (1), the body (2) of going up, organism (3) and support (4) down, go up organism (2) inside frame (6) through four main hydraulic cylinder (5) fixedly connected with that are the cross and distribute, lower inside fixed connection lower carriage (7) of organism (3), go up frame (6) and lower carriage (7) around the equal detachably fixedly connected with end cover (8) in both ends, it is mechanism, its characterized in that to be provided with last roller system in frame (6): go up roller system mechanism and include A backing roll (61), B backing roll (62), C backing roll (63), intermediate roll (64), vice working roll (65) and go up working roll (66), the A backing roll (61), B backing roll (62) and C backing roll (63) of telling are through a plurality of bearing and saddle and last frame (6) roll connection, A backing roll (61) and B backing roll (62) all with intermediate roll (64) roll connection, B backing roll (62) and C backing roll (63) all with vice working roll (65) roll connection, vice working roll (65) and intermediate roll (64) all with last working roll (66) roll connection, vice working roll (65) diameter is greater than intermediate roll (64) diameter, A backing roll (61), B backing roll (62), C backing roll (63), Front and rear end covers (8) and pass through bearing roll connection with the position of running through all running through at the both ends of vice worker roller (65) and middle roller (64), go up worker roller (66) both ends and have two end cover (661) through bearing detachably roll connection, end cover (661) are through setting up lug, powerful spring (662) and the bolt and last frame (6) front side fixed connection in the side, it is provided with pothook (663) to go up frame (6) front side and lean on the left part to fix.
2. The multi-roll numerically controlled cold-rolling mill according to claim 1, characterized in that: the bottom of the top plate (1) is fixedly connected with brackets (4) arranged at the front side and the rear side of the machine body, the top plate (1) is connected with a sliding plate (11) in a sliding way through a sliding chute arranged at the bottom of the top plate (1), a horizontal hydraulic cylinder (12) is fixedly connected to the side surface of the top plate (1), a hydraulic rod of the horizontal hydraulic cylinder (12) penetrates through the side wall of the top plate (1) and is fixedly connected with the sliding plate (11) through a connecting rod, the bottom of the sliding plate (11) is fixedly connected with two vertical hydraulic cylinders (13) in a bilateral symmetry way, the hydraulic rod of the vertical hydraulic cylinder (13) is fixedly connected with the upper machine body (2) through a connecting rod, a limit groove (41) is arranged above the bracket (4), the front and the back of the upper machine body (2) are fixedly connected with limit rods (21), the limiting rod (21) is positioned in the limiting groove (41) of the bracket (4) and is in sliding connection with the side wall of the limiting groove (41).
3. The multi-roll numerically controlled cold-rolling mill according to claim 1, characterized in that: a lower roll system mechanism is arranged in the lower rack (7), the lower roll system mechanism comprises a lower working roll (71) and a D supporting roll (72) which are in rolling connection with each other, two ends of the lower working roll (71) and the D supporting roll (72) penetrate through a front end cover (8) and a rear end cover (8) and are in rolling connection with a penetrating position through bearings, the top of the lower rack (7) is fixedly connected with a cooling plate (31), one side, close to an upper working roll (66), of the cooling plate (31) is hinged with a pair of oil nozzles (311) in an up-and-down symmetrical mode, the oil nozzles (311) are connected with an external oil supply system through pipelines arranged in the lower rack (7) and a lower machine body (3), small guide columns (312) are symmetrically arranged in the cooling plate (31) from top to bottom, two ends of the small guide columns (312) penetrate through the front side and the rear side of the cooling plate (31) and are in rolling connection with the penetrating position through bearings, guide blocks (32) are symmetrically arranged on the left side and the right side of the upper surface of the lower machine body (3), the guide block (32) upper surface is provided with a plurality of big guide pillars (321), big guide pillar (321) both ends all run through guide block (32) front and back both sides and pass through the position with pass through bearing rolling connection.
4. The multi-roll numerically controlled cold-rolling mill according to claim 3, characterized in that: the B supporting roller (62), the C supporting roller (63) and the middle roller (64) all adopt the same surface treatment process, the upper working roller (66), the lower working roller (71) and the auxiliary working roller (65) all adopt the same surface treatment process, and the lowest end of the upper working roller (66) is lower than the lowest end of the auxiliary working roller (65) when the upper roller system mechanism is in a matched state.
5. The multi-roll numerically controlled cold-rolling mill according to claim 3, characterized in that: the length of A backing roll (61), B backing roll (62) and C backing roll (63) is less than vice working roll (65), the length of vice working roll (65) is less than last working roll (66), it equals with lower working roll (71) length to go up working roll (66).
6. The multi-roll numerically controlled cold-rolling mill according to claim 3, characterized in that: the rear ends of the supporting roller A (61), the supporting roller B (62), the supporting roller C (63) and the supporting roller D (72) are connected with an external main motor unit through components such as an external universal coupling and a gear box, and the external main motor unit, the main hydraulic cylinder (5), the horizontal hydraulic cylinder (12) and the vertical hydraulic cylinder (13) are controlled by an AGC system.
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| CN202210129355.5A CN114570771A (en) | 2022-02-11 | 2022-02-11 | Multi-roll numerical control cold rolling mill |
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| CN202210129355.5A CN114570771A (en) | 2022-02-11 | 2022-02-11 | Multi-roll numerical control cold rolling mill |
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