CN1020072C - Continuous rotting mill for cold-roeled threaded reinforcing bar - Google Patents
Continuous rotting mill for cold-roeled threaded reinforcing bar Download PDFInfo
- Publication number
- CN1020072C CN1020072C CN 91106117 CN91106117A CN1020072C CN 1020072 C CN1020072 C CN 1020072C CN 91106117 CN91106117 CN 91106117 CN 91106117 A CN91106117 A CN 91106117A CN 1020072 C CN1020072 C CN 1020072C
- Authority
- CN
- China
- Prior art keywords
- roll
- rolling
- wheel
- cold
- mill
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Metal Rolling (AREA)
Abstract
The present invention belongs to metal rolling equipment, particularly to a continuous rolling mill of cold rolled twisted steel, which realizes the continuous cold rolling of twisted steel. The rolling mill comprises a motor, a speed changing box, a gear box, blooming mill rolls, precision rolling rolls, etc., which are arranged in the axial direction, an upper roll and a lower roll of each blooming mill roll and each precision rolling roll are respectively connected with driving shafts of universal joints, the blooming mill rolls and the precision rolling rolls respectively have certain roll radius difference, and an exposure type repeater device and a residual stress eliminating device are also arranged. Twisted steel with phi of 3 to 8mm can be stably continuously rolled, the fracture elongation rate of products is increased by 2 to 3%, and the optimum mechanical properties of the products are ensured. The mill of the present invention has the advantages of small floor area, low manufacturing cost, and favorable stability of continuous rolling. Consequently, the present invention is suitable for medium and small enterprises or township enterprises to manufacture or use.
Description
The invention belongs to metal shaping equipment, particularly the cold-rolled thread tandem mill of continuous cold rolling spiral.
Cold-rolled threaded reinforcing steel is a kind of new and effective structural steel that developed in recent years, it has than with advantage such as tensile strength height, the plasticity of diameter hot-rolled reinforced bar is good, simultaneously bond the interlocking of comprehensive form with concrete shrinkage because rebar surface is rough and uneven in surface, steel and concrete cohesive force have been improved, finally prolong the service life of concrete component, and can save the steel of 25-35%.At present, many in the world countries extensively promote the application of cold rolling spiral shell reinforcing bar all at the rolling equipment of actively developing cold-rolled threaded reinforcing steel, and the output of cold-rolled threaded reinforcing steel increases year by year.In China, in order to satisfy the demand of building trade to cold-rolled threaded reinforcing steel, people are also developing and are studying the equipment of producing cold-rolled threaded reinforcing steel, and cold-rolled threaded reinforcing steel rolling production equipment and technology have occurred.Chinese patent CN1045040A discloses a kind of " cold-rolled ribbed (screw thread) reinforcing bar producing device and technology ", and this device is the cold-drawn milling train, and processing technology is complicated, and the reinforcing bar distortion is undesirable, the work-hardening capacity height, and the product inherent quality is low, unstable properties; Chinese patent CN1042852A discloses a kind of " manufacturing process of cold-rolled threaded reinforcing steel ", the passive dog of these process using three rollers, reinforcing bar when roll is finished deformation process on rebar surface the passive screw thread that engraves, this process using power traction, be to pull out roll process, product fracture layer depth is and wide, and the product inherent quality can not get guaranteeing; Chinese patent CN2057119U discloses a kind of " close-coupled cold-rolled threaded reinforcing steel milling train ", thick, the finishing mill of this milling train adopt serially connected being assembled in the same frame, rolled piece enters the rolling rag of finish rolling immediately after roughing is rolling, because of the poor and high-speed synchronous adjusting device in no roller footpath, can not form the second flow amount equates, cause frequent heap to draw steel, stop to get rid of heap frequently and draw the steel part that gives up.Though this machine is simple in structure, compact, can not form continuous rolling in producing.
The object of the present invention is to provide and a kind ofly can realize continuous rolling, and can guarantee the cold-rolling twisted steel bar continuous rolling machine of product inherent quality.
Cold-rolling twisted steel bar continuous rolling machine of the present invention, system is by actinobacillus device (19), descaling device (20), motor (1), gearbox (2), gear-box (3), shaping roll up-down rollers (11) (12), planishing roll up-down rollers (15) (16), remove residual stress device (21), coiling apparatus (22) and repeater device compositions such as (7), it is characterized in that: motor (1), gearbox (2), gear-box (3), shaping roll up-down rollers (11) (12), planishing roll up-down rollers (15) (16) is axially-aligned, shaping roll top roll (11) links to each other with the passive power transmission shaft of universal joint (4), shaping roll lower roll (12), planishing roll top roll (15) links to each other with universal joint initiative drive shaft (5), and planishing roll lower roll (16) links to each other with universal joint axis power transmission shaft (6).
Cold-rolling twisted steel bar continuous rolling machine of the present invention is provided with exposure formula repeater device (7) and removes residual stress device (21).
Said exposure formula repeater device (7), tie up to the front end of operating table surface (23), be equipped with respectively that front end is outside expansion, the rear end is the two formed roughing ray of the baffle plate tracks (24) and the finish rolling guide and guard track (27) of vertical bar shape, be equipped with a pair of importing wheel (28) at the afterbody of guide and guard track (27); There are two pairs of guide wheels (25) (26) at the rear portion of operating table surface (23), guide wheel (25) (26) along Zhou Jun one oval-shaped groove is arranged, the center line of the oval groove of guide wheel (26) and horizontal plane angle at 45, the center line of the oval groove of guide wheel (26) is vertical with horizontal plane; One side direction of operating table surface (23) certain angle (∠ α) that has a down dip, the height that makes it roughing ray track (24) and finish rolling guide and guard track (27) is corresponding with the pass height of thick planishing roll respectively.
The said residual stress device (21) that removes, tie up on the last frame-saw and middle frame-saw of a metal framework (29), be fixed with equidistant staggered upper bearing plate (33) and lower support plate (34), each is equipped with depress wheel (31) and support roller (32) on the fixed axis that is equipped with on the corresponding support plate on last frame-saw and the middle frame-saw; In the front end newel post of metal framework (29), put one by fixed axis and import wheel (30); Rear portion in metal framework (29) on the axle that is fixed on support plate (35), is equipped with the relative aligning wheel (36) of two rows; Each wheel along the Zhou Youyi groove, stud with copper sheathing in the groove; The diameter and the arrangement position of depress wheel (31) and support roller (32) should make reinforcing bar by this two when taking turns, and reinforcing bar is 150-165 ° of angle with the angle of taking turns between 2 the tangent line of contacting.
Cold-rolling twisted steel bar continuous rolling machine of the present invention, groove on the whole roller sheet (40) (41) of the whole roller sheet (37) (38) of the up-down rollers of its said shaping roll (11) (12) and the upper and lower roll (15) (16) of planishing roll is seven, and the diameter of the roller sheet (40) (41) of planishing roll is than the big 10-15mm of diameter of the roller sheet (37) (38) of shaping roll.
The continuous rolling process of cold-rolling twisted steel bar continuous rolling machine of the present invention is achieved in that
Hot-rolled reinforced bar or hot rolling bar steel are decontroled through actinobacillus device (19), after removing removing iron scale by descaling device (20), introduce roughing guide and guards (13), rotation by shaping roll, the rolled piece of nipping enters the roughing cogging-down pass first passage tube reducing, rolled piece is rolled into oval semi-finished product, rolled piece is by the roughing ray track (24) of exposure formula repeater device (7) then, enter guide wheel (25), oval rolled piece by guide wheel (25) enters guide wheel (26) by level after counterclockwise changeing 45, rolled piece by guide wheel (26) changes 45 again by counter clockwise direction, make elliptical rolled piece enter finish rolling guide and guard track (27) and import wheel (28) at last by the vertical direction state, it is rolling to enter planishing roll by the finish rolling guide and guards again, the second passage tube reducing distortion of the circular finishing groove that is made of the up-down rollers sheet (40) (41) of planishing roll also is full of rag, again through removing residual stress device (21) except that after the destressing, after coiling apparatus (22) rolling.
For cold-rolling twisted steel bar continuous rolling machine, can realize continuous rolling and guarantee that the condition of product quality is:
1, has correct continuous rolling relationship;
2, rolled piece second flow amount is equated or approximately equal;
3, the reinforcing bar distortion is stressed evenly, and metallographic structure is good, makes the product comprehensive mechanical performance reach optimum state.
Tandem mill of the present invention, it is thick, the diameter of planishing roll roller sheet is unequal, and it is poor to have certain roller footpath, the roughing of rolled piece is equated, for tandem rolling has been created condition with the second flow amount of finish rolling.
The exposure formula repeater device (7) that is provided with is that axially-aligned designs in conjunction with the capital equipment of this milling train.Oval-shaped rolled piece through the roughing first passage tube reducing, behind guide wheel (25) (26), the ellipse of rolled piece is transformed into plumbness by level, for condition has been created in finish rolling, make rolled piece be in the dynamical state process behind the roughing first passage tube reducing, the adjustment of process repeater device (7) reaches the steady-state process that the second flow amount equates, determines correct continuous rolling relationship, participate in the process at tension force, set up the tandem rolling criterion; Rolled piece before after the process roughing, entering finish rolling simultaneously, because via roughing ray track (24), two pairs of guide wheels (25) (26) and finish rolling guide and guard track (27), go up curved state in operating table surface (23), its length can be regulated voluntarily, heap can not occur and draw steel and stop to get rid of pile frequently and draw the steel part that gives up.
By rotating handwheel (9) and (17), the lifting of depressing slide block (10) (14) that utilizes depress spiro rod (8) (18) to connect by the requirement of rolled piece sectional area, is determined correct compression ratio, and it is rolling to guarantee that product transfers stable state by pass to by Dynamic Rolling Process.
In the continuous rolling process of wire rod deep processing, it is the tandem rolling twisted strip that tension force participates in.This milling train adopts roll to be connected with Cardan shaft, the automatic micro-adjustment of tonicity of energy, thereby can realize the stable state operation of rolling that tension force participates in.
Cold-rolled threaded reinforcing steel behind the finish rolling second passage rag, via the importing wheel (30) that removes on the residual stress device (21), under the traction of power, enter support roller (32) and depress wheel (31), rolled piece since second support roller by depress wheel (31) to pressing down 15-30 ° of angle (seeing accompanying drawing 3); Rolled piece 15-30 ° depress be mechanically driven under the horn shape condition after, make reinforcing bar revert to straight line through aligning wheel (36) again, so just can eliminate because of two passage roll compacting and make the remaining hardenability-residual stress of rolled piece, thereby guaranteed that rolling product mechanical performance is better, make percentage elongation improve δ 2-3%, improved product quality.
Seven roughing (tube reducing) passes that the up-down rollers sheet of shaping roll of this tandem mill and planishing roll constitutes and seven finish rolling (rag) pass, can design the pass of similar and different specification (diameter in hole and decorative pattern) as required, more the roll change sheet just can roll out the product of different size, if utilize a milling train unit, only need to increase a cover actinobacillus device, descaling device, remove the residual stress device, and on the table top of repeater device, increase roughing ray track (24), finish rolling guide and guard track (27), guide wheel (25) and (26), it is rolling just can to carry out two-wire simultaneously, thereby can improve single machine yield, increase economic efficiency.
Accompanying drawing 1 is embodiments of the invention.
Cold-rolling twisted steel bar continuous rolling machine of the present invention is compared with existing cold-rolled threaded reinforcing steel milling train, and the advantage that has is:
1, in rolling process, can determine roughing and the finish rolling company that second, flow equated Roll relation, what the Dynamic Rolling Process of roughing can very fast formation stable state is continuously rolling, and this is the optimal cold deformation technological process of reinforcing bar deep processing.
2, be eliminated because of sclerosis degree-residual stress that the continuous pressure rolling of two passages increases owing to the cold-rolled threaded reinforcing steel product, thereby make the product of processing can obtain best mechanical performance, maximum degree ground has improved product quality.
3, can realize that two-wire is rolling, improve single machine yield.
4, easy and simple to handle, be easy to grasp, occupation of land is little, cost is low.
This tandem mill can continuous rolling Φ 3-8mm cold-rolled threaded reinforcing steel, can not only the rolling low carbon steel, can also rolling low-alloy steel, high-carbon steel, again can rolling lath steel; One playscript with stage directions machine annual production can reach 6000 tons, is suitable for medium-sized and small enterprises or township enterprise and uses, and is more suitable for the update of little steel rolling plant.
Description of drawings
Fig. 1: structural representation of the present invention
Fig. 2: remove residual stress apparatus structure schematic diagram
Fig. 3: remove residual stress device front view
Fig. 4: repeater apparatus structure schematic diagram
Fig. 5: shaping roll structural representation
Fig. 6: planishing roll structural representation
Among the figure: 1 motor, 2 gearboxes, 3 gear-boxes, the passive power transmission shaft of 4 universal joints, 5 universal joint initiative drive shafts, 6, universal joint axis power transmission shaft, 7 repeater devices, 8 depress spiro rods, 9 handwheels, 10 depress slide block, 11 shaping roll top rolls, 12 shaping roll lower rolls, 13 guide and guards, 14 depress slide block, 15 planishing roll top rolls, 16 planishing roll lower rolls, 17 handwheels, 18 depress spiro rods, 19 actinobacillus devices, 20 descaling devices, 21 remove the residual stress device, 22 coiling apparatus, 23 operating table surface, 24 roughing rays, track, 25 guide wheels, 26 guide wheels, 27 finish rolling guide and guard tracks, 28 import wheel, 29 frameworks, 30 import wheel, 31 depress wheels, 32 support rollers, 33 upper bearing plates, 34 lower support plate, 35 support plates, 36 aligning wheels, 37 top roll sheets, 38 lower roll sheets, 39 grooves, 40 top roll sheets, 41 lower roll sheets, 42 grooves.
Accompanying drawing 1 is specification digest accompanying drawing of the present invention
Claims (3)
1, a kind of cold-rolling twisted steel bar continuous rolling machine, comprise actinobacillus device (19), descaling device (20), motor (1), gearbox (2), gear-box (3), shaping roll up-down rollers (11) (12), planishing roll up-down rollers (15) (16), coiling apparatus (22) etc., it is characterized in that:
A, motor (1), gearbox (2), gear-box (3), shaping roll up-down rollers (11) (12), planishing roll up-down rollers (15) (16) are axially-aligned, shaping roll top roll (11) links to each other with the passive power transmission shaft of universal joint (4), shaping roll lower roll (12), planishing roll top roll (15) link to each other with universal joint initiative drive shaft (5), and planishing roll lower roll (16) links to each other with universal joint axis power transmission shaft (6);
The groove of the whole roller sheet (40) (41) of the whole roller sheet (37) (38) of the upper and lower roll of b, shaping roll (11) (12) and the upper and lower roll (15) (16) of planishing roll is seven, and the diameter of the roller sheet (40) (41) of planishing roll is than the big 10-15mm of diameter of the roller sheet (37) (38) of shaping roll;
C, be provided with exposure formula repeater device (7);
D, be provided with except that residual stress device (21).
2, cold-rolling twisted steel bar continuous rolling machine according to claim 1, it is characterized in that said exposure formula repeater device (7), tie up to the front end of operating table surface (23), be equipped with respectively that front end is outside expansion, the rear end is the two formed roughing ray of the baffle plate tracks (24) and the finish rolling guide and guard track (27) of vertical bar shape, a pair of importing wheel (28) arranged at the afterbody of finish rolling guide and guard track (27); There are two pairs of guide wheels (25) (26) at the rear portion of operating table surface (23), guide wheel (25) (26) along Zhou Jun one oval-shaped groove is arranged, the center line of the oval groove of guide wheel (25) and horizontal plane angle at 45, the center line of the oval groove of guide wheel (26) is vertical with horizontal plane; One side direction of operating table surface (23) certain angle (∠ α) that has a down dip, the height that makes it roughing ray track (24) and finish rolling guide and guard track (27) is corresponding with pass height thick, planishing roll respectively.
3, cold-rolling twisted steel bar continuous rolling machine according to claim 1, it is characterized in that the said residual stress device (21) that removes, tie up on the last frame-saw and middle frame-saw of a metal framework (29), be fixed with equidistant staggered upper bearing plate (33) and lower support plate (34), each is equipped with depress wheel (31) and support roller (32) on the fixed axis that is equipped with on the corresponding support plate on last frame-saw and the middle frame-saw; In the front end newel post of metal framework (29), put one by fixed axis and import wheel (30); Rear portion in metal framework (29) on the axle that is fixed on support plate (35), is equipped with the relative aligning wheel (36) of two rows; Each wheel along the Zhou Youyi groove, stud with copper sheathing in the groove; The diameter and the arrangement position of depress wheel (31) and support roller (32) should make reinforcing bar by this two when taking turns, reinforcing bar with take turns that angle is 150-165 ° of angle between 2 the tangent line of contacting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91106117 CN1020072C (en) | 1991-05-20 | 1991-05-20 | Continuous rotting mill for cold-roeled threaded reinforcing bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91106117 CN1020072C (en) | 1991-05-20 | 1991-05-20 | Continuous rotting mill for cold-roeled threaded reinforcing bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1056448A CN1056448A (en) | 1991-11-27 |
| CN1020072C true CN1020072C (en) | 1993-03-17 |
Family
ID=4907554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91106117 Expired - Fee Related CN1020072C (en) | 1991-05-20 | 1991-05-20 | Continuous rotting mill for cold-roeled threaded reinforcing bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1020072C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303043B (en) * | 2011-09-14 | 2013-10-30 | 邵阳高华工贸实业有限公司 | Cold-rolled ribbed steel bar production device and production method for same |
| CN105268743B (en) * | 2015-11-06 | 2017-05-17 | 江苏省利金新材科技有限公司 | Alloy steel profiled bar forming integrated machine and machining method thereof |
| CN106238458B (en) * | 2016-08-17 | 2018-10-12 | 安徽晋源铜业有限公司 | A kind of copper rod production apparatus for cold rolling |
| CN106311742B (en) * | 2016-08-17 | 2018-04-17 | 安徽晋源铜业有限公司 | A kind of week type copper bar cold rolling processing unit (plant) |
| CN106180181B (en) * | 2016-08-17 | 2018-09-14 | 安徽晋源铜业有限公司 | A kind of multi-functional copper rod production apparatus for cold rolling |
| CN109175172A (en) * | 2018-09-06 | 2019-01-11 | 山东焱鑫矿用材料加工有限公司 | A kind of molding milling train rolling double rotational directions thread connection steel part |
| CN109909275B (en) * | 2019-04-28 | 2023-10-03 | 梁士臣 | Hot-rolled strip steel head forming rolling mill and forming method thereof |
-
1991
- 1991-05-20 CN CN 91106117 patent/CN1020072C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1056448A (en) | 1991-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1883833A (en) | Multi-roller multi-frame reversing cold mill and rolling method therefor | |
| CN201172057Y (en) | Universal mill | |
| JPH01148433A (en) | Hot rolled bar steel with spiral rib and manufacture and device thereof | |
| CN1020072C (en) | Continuous rotting mill for cold-roeled threaded reinforcing bar | |
| CN103316916A (en) | Square tube former and production method of square tubes | |
| CN1843647A (en) | Multi-roller steel plate-flattening machine | |
| CN201807632U (en) | Two-way flat steel straightening machine | |
| CN1289223C (en) | Cold-bent central beam for manufacturing railway carriage | |
| CN102601182A (en) | Corrugated plate rolling machine | |
| CN1539568A (en) | Straightener for 3D round bar with multiple skew rollers | |
| CN1014500B (en) | Apparatus and technology for cold-rolling steel reinforcement with thread | |
| CN105583230A (en) | Large thick-wall special-shaped pipe cold roll forming method | |
| CN2465832Y (en) | Hot rolled ribbed bar straightener | |
| CN202490858U (en) | Corrugated plate veneer reeling machine | |
| CN201091877Y (en) | Two-edge-rib cold rolling steel bar continuous rolling mill | |
| CN2776583Y (en) | Metal wire continuous milling machine | |
| CN2715878Y (en) | Machine for making metal spiral flat pipe for prestressed concrete | |
| CN2656041Y (en) | Three dimension multislant roller round material straightening machine | |
| CN211757611U (en) | Super duplex steel stainless steel seamless pipe cold rolling device | |
| CN2511409Y (en) | Cold bending apparatus for construction bearing plate of building | |
| CN1180000A (en) | Steel ball bloom continuous rolling mill | |
| CN220111944U (en) | Multifunctional cold rolling equipment | |
| CN220611730U (en) | High-speed wire rod finish rolling module group in advance | |
| CN215143556U (en) | Anti-abrasion high-hardness straightening roller device for cold-drawn flat steel | |
| CN202893802U (en) | H-section steel rolling equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |