CN114798723A - Cold rolling die - Google Patents
Cold rolling die Download PDFInfo
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- CN114798723A CN114798723A CN202210470161.1A CN202210470161A CN114798723A CN 114798723 A CN114798723 A CN 114798723A CN 202210470161 A CN202210470161 A CN 202210470161A CN 114798723 A CN114798723 A CN 114798723A
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- Prior art keywords
- cold rolling
- fixedly connected
- sponge
- sets
- die
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- 238000005097 cold rolling Methods 0.000 title claims abstract description 39
- 238000001816 cooling Methods 0.000 claims abstract description 83
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 238000005096 rolling process Methods 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 24
- 210000005239 tubule Anatomy 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 10
- 238000005461 lubrication Methods 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 13
- 230000009471 action Effects 0.000 description 11
- 239000002826 coolant Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010622 cold drawing Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-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
- B21B1/16—Metal-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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/08—Lubricating, cooling or heating rolls internally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars
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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 relates to the technical field of dies, in particular to a cold rolling die, which comprises a seat plate, wherein two groups of supporting rollers are horizontally and fixedly connected at the right side position in the middle of the seat plate in a through way, the outer surfaces of the two groups of supporting rollers are rotatably connected with the die through bearings, the middle part of the outer surface of the die is in a semicircular arc design, a cooling mechanism is arranged at the left side position of the die above the seat plate, the cooling mechanism is arranged in the cold rolling die, cooling oil is injected into the supporting rollers by the cooling mechanism when the die rotates in the cold rolling process, most heat is taken away when the cooling oil flows through the supporting rollers, so that the inside of the supporting rollers is cooled, the heat accumulated when the friction between the supporting rollers and the die generates heat is reduced, besides, the cooling mechanism coats sufficient cooling oil on the outer surface of a steel bar section to be rolled when in work, and the cooling oil can play a role of lubrication, prevent the steel bar from breaking due to the large friction force generated between the steel bar and the mould during rolling.
Description
Technical Field
The invention relates to the technical field of dies, in particular to a cold rolling die.
Background
The cold rolling steel bar is obtained by cold working the hot rolled steel bar, for example, cold drawing and drawing the steel bar at normal temperature, and the continuous cold rolling process is divided into a plurality of different cold rolling stages to gradually reduce the wire diameter, so that the finished steel bar meeting the requirements is obtained.
Among the current rolling process, the reinforcing bar can pass from the mould under the effect of cold rolling device traction force, the mould rotates on the backing roll under the effect of reinforcing bar friction extrusion force, thereby two sets of moulds roll the thickness degree that changes the reinforcing bar when rotating the reinforcing bar and reach rolling effect, thereby because the mould rotates on the backing roll for a long time, produce the heat during the friction between the two, the heat can not reduce for a long time and can produce the damage to mould and backing roll, shorten the life of mould and backing roll, the reinforcing bar is at cold rolling in-process, can produce great frictional force between reinforcing bar and mould, cause the reinforcing bar to appear easy fracture at rolling in-process.
For this purpose, a cold rolling die is proposed.
Disclosure of Invention
The invention aims to provide a cold rolling die, which solves the problems that: in the cold rolling process, as the die rotates on the supporting roller for a long time, heat is generated during friction between the die and the supporting roller, and the die and the supporting roller are damaged due to the fact that the heat cannot be reduced for a long time, so that the service lives of the die and the supporting roller are shortened; and in the cold rolling process of the steel bar, a larger friction force can be generated between the steel bar and the die, so that the steel bar is easy to break.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a cold rolling mould, includes the bedplate, the terminal surface is close to four group's of corner fixedly connected with base posts of bedplate lower extreme, the fixed through connection of bedplate middle part right side position level has two sets of backing rolls, and is two sets of the backing roll surface all rotates through the bearing and is connected with the mould, mould surface middle part is the design of semi-circular arc, bedplate up end is located mould outside fixedly connected with protection casing, the two sides communicate with each other around the protection casing, the bedplate top is located mould left side position and is provided with cooling mechanism.
Preferably, the supporting rollers are of hollow structures, the upper ends of the two groups of dies are of conical structures, and the conical parts are provided with teeth.
Preferably, cooling mechanism includes box, a piece, horizontal pole, bevel gear and cam, bedplate up end middle part is located mould left side position fixedly connected with box, box up end middle part right side fixedly connected with a piece, a piece upper end is rotated through the bearing and is connected with the horizontal pole, horizontal pole right-hand member face fixedly connected with bevel gear, bevel gear meshes with the toper part of left side mould upper end, the horizontal pole left end is provided with the cam, horizontal pole and cam right-hand member face border position fixed connection.
Preferably, the position that the horizontal pole was kept away from to cam left end face articulates there is the connecting rod, inside the connecting rod downwardly extending to the box, the connecting rod lower extreme articulates there is the piston, box right-hand member face bottom rear side position through connection has the hard pipe, the hard pipe upwards extends and buckles to two sets of mould back upper positions, the hard pipe end is the encapsulated situation, hard pipe front side outer surface corresponds the position through connection with two sets of backing rolls has two sets of nozzle stub, and is two sets of nozzle stub downwardly extending just respectively with two sets of backing rolls through connection, terminal surface middle part through connection has the long tube under the box.
Preferably, the bedplate up end is located two sets of mould rear position fixedly connected with support one, support inboard fixedly connected with sponge one, a sponge intermediate position seted up with rolling reinforcing bar assorted cylindrical hole, box rear end face bottom position through connection has the tubule, the tubule upwards buckles to extend and finally penetrates inside the sponge from a sponge upper end middle part position.
Preferably, an annular pipe is bonded to the position, close to the edge, inside the sponge, the thin pipe is communicated with the middle of the upper end of the annular pipe, and a plurality of groups of nozzles are connected to the outer surface of the annular pipe in an annular and equidistant mode.
Preferably, the upper end face of the seat plate is fixedly connected with a second support at the rear of the first support, a first rectangular groove is formed in the inner side of the second support, a first rectangular block is slidably connected inside the first rectangular groove, the adjacent faces of the first rectangular block are fixedly connected with cleaning blocks, and cylindrical holes matched with rolled steel bars are formed in the middle of the cleaning blocks.
Preferably, the oil tank is fixedly connected to the lower end face of the seat plate, the long pipe penetrates through the seat plate and extends downwards to the bottom of the oil tank, and the lower end of the supporting roller extends into the oil tank.
Preferably, a plurality of groups of radiating fins are embedded in the front, back, left and right side surfaces of the oil tank at equal intervals from top to bottom.
Preferably, the upper end face of the seat plate is fixedly connected with a third support at the position in front of the two sets of dies, a second rectangular groove is formed in the inner side of the third support, a second rectangular block is slidably connected inside the second rectangular groove, a second sponge is bonded on the adjacent surfaces of the two rectangular blocks, and a cylindrical hole matched with the rolled steel bar is formed in the middle of the second sponge.
Compared with the prior art, the invention has the beneficial effects that:
through set up cooling mechanism in the device, in cold rolling in-process, cooling mechanism can be toward the inside coolant oil that injects of backing roll when the mould rotates, most heat can be taken away when coolant oil flows through from the backing roll is inside, thereby cool down to the backing roll is inside, the heat that accumulates when having reduced the frictional heating between backing roll and the mould, in addition, cooling mechanism can treat the cooling oil of scribbling the capacity of rolling reinforcing bar paragraph surface at the during operation, the coolant oil can play the lubrication action, prevent when rolling, produce great frictional force and cause the reinforcing bar fracture between reinforcing bar and mould.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is an overall structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;
FIG. 4 is a cross-sectional view taken at C-C of FIG. 3 in accordance with the present invention;
FIG. 5 is a cross-sectional view taken at D-D of FIG. 3 in accordance with the present invention;
fig. 6 is a cross-sectional view taken at E-E of fig. 3 in accordance with the present invention.
Description of reference numerals:
1. a seat plate; 11. a bottom pillar; 12. a support roller; 13. a mold; 14. a protective cover; 2. a cooling mechanism; 21. a box body; 22. supporting a block; 23. a cross bar; 24. a bevel gear; 25. a cam; 26. a connecting rod; 27. a piston; 28. a long tube; 29. a rigid tube; 211. a short pipe; 212. a thin tube; 3. an oil tank; 4. a heat sink; 5. a first bracket; 51. a sponge I; 52. an annular tube; 53. a spray head; 6. a second bracket; 60. a first rectangular groove; 61. cleaning the block; 62. a first rectangular block; 7. a third bracket; 70. a second rectangular groove; 71. a second sponge; 72. and a second rectangular block.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a cold rolling die, which solves the problems that: in the cold rolling process, as the die rotates on the supporting roller for a long time, heat is generated during friction between the die and the supporting roller, and the die and the supporting roller are damaged due to the fact that the heat cannot be reduced for a long time, so that the service lives of the die and the supporting roller are shortened; and in the cold rolling process of the steel bar, a larger friction force can be generated between the steel bar and the die, so that the steel bar is easy to break.
Through set up cooling mechanism in the device, in cold rolling in-process, cooling mechanism can be toward the inside coolant oil that injects of backing roll when the mould rotates, most heat can be taken away when coolant oil flows through from the backing roll is inside, thereby cool down to the backing roll is inside, the heat that accumulates when having reduced the frictional heating between backing roll and the mould, in addition, cooling mechanism can treat the cooling oil of scribbling the capacity of rolling reinforcing bar paragraph surface at the during operation, the coolant oil can play the lubrication action, prevent when rolling, produce great frictional force and cause the reinforcing bar fracture between reinforcing bar and mould.
In order to solve the technical problems, the technical scheme in the embodiment of the invention has the following general idea:
referring to fig. 1 to 6, the invention provides a cold rolling die, which comprises a seat plate 1, wherein four groups of bottom posts 11 are fixedly connected to the lower end surface of the seat plate 1 near four corners, two groups of supporting rollers 12 are horizontally and fixedly connected to the right side of the middle of the seat plate 1 in a penetrating manner, the outer surfaces of the two groups of supporting rollers 12 are rotatably connected with a die 13 through bearings, the middle of the outer surface of the die 13 is in a semicircular arc shape, a protective cover 14 is fixedly connected to the upper end surface of the seat plate 1 at the outer side of the die 13, the front side and the rear side of the protective cover 14 are communicated, and a cooling mechanism 2 is arranged above the seat plate 1 at the left side of the die 13.
Through set up cooling mechanism 2 in the device, in cold rolling process, cooling mechanism 2 can be toward the inside injection cooling oil of backing roll 12 when mould 13 rotates, most heat can be taken away when cooling oil flows through backing roll 12 is inside, thereby to inside cooling of backing roll 12, the heat that accumulates when having reduced the frictional heating between backing roll 12 and the mould 13, in addition, cooling mechanism 2 can scribble the cooling oil of sufficient at the during operation and treat rolled reinforcing bar paragraph surface, the cooling oil can play the lubrication action, prevent when rolling, produce great frictional force and cause the reinforcing bar fracture between reinforcing bar and mould 13, the design of protection casing 14 has increased the security of workman in operation process.
As an embodiment of the present invention, as shown in fig. 1 and fig. 2, the supporting roll 12 is a hollow structure, the upper ends of two sets of molds 13 are both conical structures, and teeth are arranged on the conical portions, the cooling mechanism 2 includes a box body 21, a supporting block 22, a cross bar 23, a conical gear 24 and a cam 25, the box body 21 is fixedly connected to the middle of the upper end surface of the seat plate 1 at the left side position of the mold 13, the supporting block 22 is fixedly connected to the right side of the middle of the upper end surface of the box body 21, the cross bar 23 is rotatably connected to the upper end of the supporting block 22 through a bearing, the conical gear 24 is fixedly connected to the right end surface of the cross bar 23, the conical gear 24 is engaged with the conical portion at the upper end of the left mold 13, the cam 25 is arranged at the left end of the cross bar 23, the edge position of the cross bar 23 is fixedly connected to the right end surface of the cam 25, a connecting rod 26 is hinged to the position of the left end surface of the cam 25 far from the cross bar 23, inside connecting rod 26 downwardly extending to box 21, connecting rod 26 lower extreme articulates there is piston 27, box 21 right-hand member face bottom rear side position through connection has rigid pipe 29, rigid pipe 29 upwards extends and buckles to two sets of moulds 13 back upper position, rigid pipe 29 end is the encapsulated situation, rigid pipe 29 front side outer surface and two sets of backing rolls 12 correspond the position through connection have two sets of nozzle stub 211, two sets of nozzle stub 211 downwardly extending just respectively with two sets of backing rolls 12 through connection, box 21 lower extreme face middle part through connection has long tube 28 (reserve the motion space between connecting rod 26 and the box 21 and supply connecting rod 26 luffing motion).
By adopting the technical scheme, the box body 21 is filled with cooling oil in an initial state, when preparation is carried out before cold rolling, the cold rolling device is started, steel bars pass through between the two groups of dies 13 under the action of traction force of the cold rolling device, the two groups of dies 13 rotate on the supporting roller 12 under the action of friction extrusion force of the steel bars, the semicircular arcs in the middle of the two groups of dies 13 roll the steel bars when rotating so as to change the thickness of the steel bars and achieve the rolling effect, when the left side die 13 rotates, the conical gear 24 meshed with the conical part at the upper end of the left side die 13 synchronously rotates, the conical gear 24 rotates to drive the cam 25 to rotate by driving the cross rod 23, the connecting rod 26 hinged with the left end surface of the cam 25 drives the piston 27 to move up and down in the box body 21, and when the piston 27 moves down, the cooling oil in the box body 21 is extruded, due to the design of the one-way valve, cooling oil cannot flow out of the long pipe 28, under the action of pressure, the cooling oil can flow into the hard pipe 29, and finally the cooling oil can flow out of the two groups of short pipes 211 communicated with the hard pipe 29 and enter the supporting roller 12, so that the cooling oil can cool the supporting roller 12 when flowing through the supporting roller 12, and heat accumulated during friction heat generation between the supporting roller 12 and the mold 13 is reduced.
As an embodiment of the present invention, as shown in fig. 2, 3 and 4, a first bracket 5 is fixedly connected to the upper end surface of the seat plate 1 at the rear position of the two sets of dies 13, a first sponge 51 is fixedly connected to the inner side of the first bracket 5, a cylindrical hole matched with a rolled steel bar is formed in the middle of the first sponge 51, a tubule 212 is connected to the bottom of the rear end surface of the box 21 in a penetrating manner, the tubule 212 is bent upward and extends to finally penetrate into the sponge 51 from the middle of the upper end of the first sponge 51, an annular tube 52 is bonded to the inner part of the first sponge 51 near the edge, the tubule 212 is connected to the middle of the upper end of the annular tube 52 in a penetrating manner, and a plurality of sets of nozzles 53 are connected to the outer surface of the annular tube 52 in a penetrating manner at equal intervals in an annular manner.
By adopting the above technical scheme, when the connecting rod 26 drives the piston 27 to move downwards in the box 21, a small part of cooling oil flows into the tubule 212 under the pressure effect, the cooling oil flowing into the tubule 212 finally flows into the annular tube 52 in the sponge one 51, because the tubule 212 continuously inputs the cooling oil into the annular tube 52 in the period of time, the cooling oil can be sprayed out from a plurality of groups of spray heads 53 distributed on the annular tube 52 under the pressure effect, the sprayed cooling oil can soak the sponge one 51, the arrow direction in fig. 3 is the steel bar traction direction, when the steel bar entering the rolling process passes through the sponge one 51, the sponge one 51 can coat the cooling oil on the outer surface of the steel bar, the cooling oil can play a role of lubrication at the same time, the friction force between the steel bar coated with the cooling oil and the mold 13 in the rolling process can be reduced, and the probability of the steel bar breakage in the rolling process can be reduced, the rolling effect is optimized.
As an embodiment of the present invention, as shown in fig. 2 and 5, a second bracket 6 is fixedly connected to the upper end surface of the seat plate 1 at a position behind the first bracket 5, a first rectangular groove 60 is formed in the inner side of the second bracket 6, a first rectangular block 62 is slidably connected to the inner side of the first rectangular groove 60, cleaning blocks 61 are fixedly connected to adjacent surfaces of the two first rectangular blocks 62, and a cylindrical hole matched with a rolled steel bar is formed in the middle of each cleaning block 61.
Through adopting above-mentioned technical scheme, the reinforcing bar that will get into rolling process passes in the middle of clearance piece 61 at first, pass clearance piece 61 at the reinforcing bar in-process can contact with clearance piece 61, some impurity particles of reinforcing bar surface adnexed can drop under clearance piece 61's effect, when clearance piece 61 suffers the damaged needs when changing owing to long-time the use, upwards lift out the rectangular block 62 on clearance piece 61 both sides hard under the condition that no reinforcing bar passed, rectangular block 62 can drive clearance piece 61 upwards to move simultaneously in the inside upwards slip of rectangular groove 60 and break away from until clearance piece 61 and support two 6, then install a new clearance piece 61 and continue to clear up the reinforcing bar surface work.
As an embodiment of the present invention, as shown in fig. 1, 2 and 3, an oil tank 3 is fixedly connected to a lower end surface of the seat plate 1, the long pipe 28 penetrates through the seat plate 1 and extends downward to the bottom of the oil tank 3, a lower end of the support roller 12 extends into the oil tank 3, and a plurality of sets of cooling fins 4 are embedded in front, rear, left and right side surfaces of the oil tank 3 at equal intervals.
By adopting the technical scheme, the cooling oil flowing through the inside of the supporting roller 12 finally flows into the oil tank 3 from the bottom end of the supporting roller 12, because the part of the cooling oil takes away a part of heat from the supporting roller 12, the temperature of the cooling oil is increased, the temperature of the inside of the oil tank 3 is increased by the part of the cooling oil, the radiating fins 4 embedded in the periphery of the oil tank 3 play a role in radiating, the temperature of the cooling oil in the oil tank 3 is reduced, and the cooling work of the next round is not influenced, when the cam 25 drives the connecting rod 26 to move upwards, the connecting rod 26 drives the piston 27 to move upwards, at the moment, the upward suction is generated in the box body 21, because the check valves are arranged in the hard pipes 29 and the thin pipes 212, the check valves are also arranged in the long pipes 28, the effect of liquid supplement to the box body 21 only through the long pipes 28 is achieved through the design of the check valves, and the cooling oil in the inside of the oil tank 3 flows into the box body 21 from the long pipes 28 under the suction effect, the cooling oil flowing into the interior of the tank 21 can be prepared for the next cooling operation.
As an embodiment of the present invention, as shown in fig. 3 and 6, a third bracket 7 is fixedly connected to the upper end surface of the seat plate 1 in front of the two sets of dies 13, a second rectangular groove 70 is formed in the inner side of the third bracket 7, a second rectangular block 72 is slidably connected to the inside of the second rectangular groove 70, a second sponge 71 is bonded to the adjacent surface of the second rectangular block 72, and a cylindrical hole matched with a rolled steel bar is formed in the middle of the second sponge 71.
By adopting the technical scheme, the rolled steel bars can subsequently penetrate through the second sponge 71, the second sponge 71 can wipe the residual cooling oil on the outer surface of the steel bars, when the second sponge 71 is damaged due to long-term use and needs to be replaced, the second rectangular block 72 on two sides of the second sponge 71 is upwards lifted under the condition that no steel bars penetrate, the second rectangular block 72 can upwards slide in the second rectangular groove 70 and simultaneously drive the second sponge 71 to upwards move until the second sponge 71 is separated from the third support 7, and then a new second sponge 71 is installed to continue to wipe the cooling oil on the surface of the steel bars.
The working principle is as follows: the box body 21 is filled with cooling oil in the initial state, when preparation is carried out before cold rolling work, a cold rolling device is started, a steel bar to be subjected to a rolling process firstly passes through the middle of the cleaning block 61, the steel bar contacts the cleaning block 61 in the process of passing through the cleaning block 61, a plurality of impurity particles attached to the outer surface of the steel bar fall off under the action of the cleaning block 61, when the cleaning block 61 is damaged due to long-time use and needs to be replaced, the rectangular blocks 62 on the two sides of the cleaning block 61 are forcibly lifted upwards under the condition that no steel bar passes through, the rectangular blocks 62 slide upwards in the rectangular grooves 60 and drive the cleaning block 61 to move upwards until the cleaning block 61 is separated from the second support 6, then a new cleaning block 61 is installed to continue cleaning work on the surface of the steel bar, and then the steel bar passes through the two sets of dies 13 under the traction force of the cold rolling device, under the action of friction and extrusion force of the steel bars, the two sets of dies 13 rotate on the supporting roller 12, when the two sets of dies 13 rotate, the semicircular arc surfaces in the middle roll the steel bars, so that the thickness degree of the steel bars is changed, and the rolling effect is achieved, when the left side die 13 rotates, the conical gear 24 meshed with the conical part at the upper end of the left side die 13 synchronously rotates, when the conical gear 24 rotates, the transverse rod 23 is driven to rotate, so as to drive the cam 25 to rotate, when the cam 25 rotates, the connecting rod 26 hinged to the left end surface of the cam 25 can drive the piston 27 to move up and down in the box body 21, when the piston 27 moves down, the cooling oil in the box body 21 can be extruded, due to the design of the one-way valve, the cooling oil cannot flow out of the long pipe 28, under the action of pressure, the cooling oil can flow into the hard pipe 29, and finally the cooling oil can flow out of the two sets of short pipes 211 communicated with the hard pipe 29 and enter the supporting roller 12, when the cooling oil flows through the inside of the supporting roller 12, the temperature of the supporting roller 12 is reduced, and the heat accumulated when the friction between the supporting roller 12 and the die 13 generates heat is reduced;
when the connecting rod 26 drives the piston 27 to move downwards in the box 21, a small amount of cooling oil flows into the thin tube 212 under the action of pressure, the cooling oil flowing into the thin tube 212 finally flows into the annular tube 52 in the sponge one 51, because the thin tube 212 continuously inputs the cooling oil into the annular tube 52 during the period of time, the cooling oil can be sprayed out from a plurality of groups of spray heads 53 distributed on the annular tube 52 under the action of pressure, the sprayed cooling oil can wet the sponge one 51, the arrow direction in fig. 3 is the traction direction of the steel bar, when a section of the steel bar entering a rolling process passes through the inner part of the sponge one 51, the sponge one 51 can coat the cooling oil on the outer surface of the steel bar, the cooling oil can play a role of lubrication at the same time, the friction force between the steel bar coated with the cooling oil and the mold 13 during the rolling process can be reduced, and the probability of the steel bar breakage during the rolling process can be reduced, the rolling effect is optimized, cooling oil flowing through the inside of the supporting roller 12 finally flows into the oil tank 3 from the bottom end of the supporting roller 12, the temperature of the cooling oil is raised due to the fact that the cooling oil takes away a part of heat from the supporting roller 12, the temperature of the cooling oil can be raised due to the part of the cooling oil, the radiating fins 4 embedded in the periphery of the oil tank 3 can play a role in radiating, the temperature of the cooling oil in the oil tank 3 is reduced, the cooling work of a next wheel is not affected, when the cam 25 drives the connecting rod 26 to move upwards, the connecting rod 26 drives the piston 27 to move upwards, an upward suction force is generated in the box body 21, due to the fact that the check valves are arranged in the hard pipe 29 and the thin pipe 212, the check valves are also arranged in the long pipe 28, the effect that liquid supplement can be performed on the box body 21 only through the long pipe 28 is achieved through the design of the check valves, the cooling oil in the oil tank 3 flows into the box body 21 from the long pipe 28 under the suction force, the cooling oil flowing into the box body 21 can be prepared for the next round of cooling work, rolled steel bars can penetrate through the second sponge 71 in the subsequent process, the second sponge 71 can be used for wiping the cooling oil remained on the outer surfaces of the steel bars, when the second sponge 71 is damaged due to long-time use and needs to be replaced, the second rectangular blocks 72 on the two sides of the second sponge 71 are upwards lifted under the condition that no steel bars penetrate, the second rectangular blocks 72 can upwards slide in the second rectangular grooves 70 and simultaneously drive the second sponge 71 to upwards move until the second sponge 71 is separated from the third support 7, and then a new second sponge 71 is installed to continue the cooling oil wiping work on the surfaces of the steel bars.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A cold rolling die comprises a seat plate (1), and is characterized in that: four groups of bottom posts (11) are fixedly connected to the lower end face of the seat plate (1) close to four corners, and two groups of supporting rollers (12) are horizontally and fixedly connected to the right side of the middle of the seat plate (1) in a penetrating manner;
two sets of backing roll (12) surface all rotates through the bearing and is connected with mould (13), mould (13) surface middle part is the design of semi-circular arc, bedplate (1) up end is located mould (13) outside fixedly connected with protection casing (14), the two sides communicate with each other around protection casing (14), bedplate (1) top is located mould (13) left side position and is provided with cooling mechanism (2).
2. A cold rolling die according to claim 1, wherein: the supporting rollers (12) are of hollow structures, the upper ends of the two groups of dies (13) are of conical structures, and teeth are arranged on the conical parts.
3. A cold rolling die according to claim 1, wherein: the cooling mechanism (2) comprises a box body (21), a support block (22), a cross rod (23), a conical gear (24) and a cam (25), and the box body (21) is fixedly connected to the middle of the upper end face of the seat plate (1) at the position on the left side of the mold (13);
the utility model discloses a mold, including box (21), end face middle part right side fixedly connected with props up piece (22) on box (21), prop up piece (22) upper end and rotate through the bearing and be connected with horizontal pole (23), horizontal pole (23) right-hand member face fixedly connected with conical gear (24), conical gear (24) and the meshing of the toper part of left side mould (13) upper end, horizontal pole (23) left end is provided with cam (25), horizontal pole (23) and cam (25) right-hand member face border position fixed connection, end face middle part through connection has long tube (28) under box (21).
4. A cold rolling die according to claim 3, wherein: a connecting rod (26) is hinged to the position, far away from the cross rod (23), of the left end face of the cam (25), the connecting rod (26) extends downwards into the box body (21), a piston (27) is hinged to the lower end of the connecting rod (26), and a hard tube (29) is connected to the rear side of the bottom of the right end face of the box body (21) in a penetrating mode;
hard pipe (29) upwards extend and buckle to two sets of moulds (13) back upper place, hard pipe (29) end is the encapsulated situation, hard pipe (29) front side outer surface corresponds position through connection with two sets of nozzle stub (211) with two sets of backing roll (12), and is two sets of nozzle stub (211) downwardly extending just respectively with two sets of backing roll (12) through connection.
5. A cold rolling die according to claim 3, wherein: bedplate (1) up end is located two sets of moulds (13) rear position fixedly connected with support (5), support (5) inboard fixedly connected with sponge (51), sponge (51) intermediate position seted up with rolling reinforcing bar assorted cylindrical hole, box (21) rear end face bottom position through connection has tubule (212), tubule (212) upwards buckle to extend finally to penetrate inside sponge (51) from sponge (51) upper end middle part position.
6. A cold rolling die according to claim 5, wherein: sponge (51) inside is close to the border position and bonds and has annular tube (52), tubule (212) link up with annular tube (52) upper end middle part, annular tube (52) surface annular equidistance link up and be connected with a plurality of shower nozzles (53) of group.
7. A cold rolling die according to claim 5, wherein: bedplate (1) up end is located support one (5) rear position fixedly connected with support two (6), rectangular channel one (60) have been seted up to support two (6) inboards, rectangular channel one (60) inside sliding connection has rectangular block one (62), and is two sets of rectangular block one (62) looks adjacent surface fixedly connected with clearance piece (61), clearance piece (61) intermediate position seted up with rolling reinforcing bar assorted cylindrical hole.
8. A cold rolling die according to claim 3, wherein: the utility model discloses a supporting roller, including bedplate (1), long tube (28), backup roller (12), bedplate (1) lower extreme fixedly connected with oil tank (3), long tube (28) link up bedplate (1) and downwardly extending to oil tank (3) bottom, inside backup roller (12) lower extreme extends to oil tank (3).
9. A cold rolling die according to claim 8, wherein: the oil tank (3) is embedded with a plurality of groups of radiating fins (4) in the four sides of the oil tank at equal intervals from top to bottom.
10. A cold rolling die according to claim 1, wherein: a third support (7) is fixedly connected to the upper end face of the seat plate (1) in front of the two sets of dies (13), and a second rectangular groove (70) is formed in the inner side of the third support (7);
the inner part of the second rectangular groove (70) is slidably connected with a second rectangular block (72), a second sponge (71) is bonded on the adjacent surface of the second rectangular block (72), and a cylindrical hole matched with the rolled steel bar is formed in the middle of the second sponge (71).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210470161.1A CN114798723B (en) | 2022-04-28 | 2022-04-28 | Cold rolling die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210470161.1A CN114798723B (en) | 2022-04-28 | 2022-04-28 | Cold rolling die |
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| CN114798723B CN114798723B (en) | 2024-08-02 |
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| CN202210470161.1A Active CN114798723B (en) | 2022-04-28 | 2022-04-28 | Cold rolling die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118204392A (en) * | 2024-05-21 | 2024-06-18 | 福建新峰科技股份有限公司 | Hardware metal strip straightening equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118204392A (en) * | 2024-05-21 | 2024-06-18 | 福建新峰科技股份有限公司 | Hardware metal strip straightening equipment |
| CN118204392B (en) * | 2024-05-21 | 2024-07-23 | 福建新峰科技股份有限公司 | Hardware metal strip straightening equipment |
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| Publication number | Publication date |
|---|---|
| CN114798723B (en) | 2024-08-02 |
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