CN103464478B - Processing method for lead before hot rolled strip threading - Google Patents
Processing method for lead before hot rolled strip threading Download PDFInfo
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- CN103464478B CN103464478B CN201310418672.XA CN201310418672A CN103464478B CN 103464478 B CN103464478 B CN 103464478B CN 201310418672 A CN201310418672 A CN 201310418672A CN 103464478 B CN103464478 B CN 103464478B
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Abstract
The invention relates to a processing method for lead before hot rolled strip threading. The processing method includes the steps that a lead head is cut from the lead of the hot strolled strip, the lead head begins to gradually widen from a transition line to the rear direction of the lead head, the transition angle of a length edge of the lead head and the rear portion of the lead head is 120 to 150 degrees, a hole is formed in the middle of the strip steel, distances between the hole and two length edges of the lead head are the same, a transition line passes through the hole both sides of which can overlap with the hole folded along the transition line, a traction belt penetrates the hole from the bottom of the strip steel, a traction rod is inserted into a traction belt hole to tension the traction belt, the lead head is folded upwards along the transition line for the traction rod to be wrapped in the middle of the strip steel for being hit to be strong, and upper and lower strip steel is fit and welded together. With the processing method for the lead before the hot rolled strip threading, the problems that strip steel perforation is easy to be teared when dragged by the traction belt, the traction rop drops during the traction process, the traction belt is cut off by the strip steel, a over S-type tension roller of the lead is jammed and a over looper car steering roller of the lead is jammed are avoided.
Description
Technical field
The present invention relates to Continuous Cold Rolled Strip rolling technical field, before being specifically related to a kind of hot-strip threading, take the lead processing method.
Background technology
Cold continuous rolling production line, especially pickling continuous rolling production line there will be the situation of broken belt threading again when production run.As produce line generation broken belt fault or maintenance broken belt open car time, all need threading again.Consider the features such as product line length, the slewing rollers of cold continuous rolling production line are many, band steel running orbit is complicated, hot-strip thickness is large, the problem that hot rolling threading difficulty is larger is more outstanding, and the difficulty in particular through looping car slewing rollers is larger.Therefore the method processed is taken the lead before needing to optimize hot-strip threading, to improve the operating efficiency of broken belt threading again.
Taking the lead processing method before traditional hot-strip threading is at broken belt strip steel head correct position opening square hole, drawing bar be not with tapping in the middle part of steel through after leash, this threading mode easily produces various problem when drawing: tear as middle part perforation is easily pulled when band drags, drawing bar drops in distraction procedure, leash is with steel to cut off, took the lead " S " type jockey pulley jam and took the lead the phenomenons such as looping car slewing rollers jam, bring very large difficulty to the work of hot-strip threading, also have a strong impact on the operating efficiency of pickling continuous rolling production line.
Summary of the invention
In order to solve above technical problem, take the lead processing method before the invention provides a kind of hot-strip threading, avoid the perforation of band steel be easily pulled when band drags tear, drawing bar drops in distraction procedure, the problem of " S " type tension roll assembly jam is cut off, taken the lead to leash with steel.
The present invention is achieved through the following technical solutions:
Take the lead processing method before a kind of hot-strip threading, comprise the steps:
Taking the lead to cut and take the lead head at hot-strip, described in take the lead head to taking the lead rear direction from transition wire gradually wider than crossing, taking the lead the length sides of head is 120 ° ~ 150 ° with the transition angle of band back of head;
At band steel central aperture, it is equal that described pitch-row takes the lead the distance of two length sides, and described transition wire is through hole, and the both sides folding metapore along transition wire can overlap;
Leash is penetrated hole below band steel, penetrates drawing bar and strain leash in traction is with holes, will take the lead head upwards folds along transition wire, drawing bar is wrapped in band steel centre and hits tight, making to be with steel to suit together up and down;
The part suited with steel is up and down welded together.
In technique scheme, preferably, take the lead described in that head length is about 200-400mm, width is about 200-500mm.
In technique scheme, preferably, two length sides in described hole are 100-150mm, the length of width edge is 50-100mm.
In technique scheme, described hole is circular port, and the diameter of circular port is 100-150mm.
In technique scheme, described hole is slotted eye, and the length of slotted eye major axis is 100-150mm, and the length of slotted eye minor axis is 50-100mm.
Take the lead processing method by taking the lead hot rolling to be treated to the shape of " tip is trapezoidal ", easily through tension roll assembly before hot-strip threading of the present invention; It is folding fixing to take the lead head, drawing bar is wrapped and is welded on takes the lead head inside, compared to conventional method, band steel of the present invention and drawing bar fixation, drawing bar contact with the strip, and stressed area increases, stressed minimizing, and band steel upper and lower surface is unanimously stressed, therefore not easily tear-strap steel, and take the lead to there will not be the phenomenon tilting percussion device because of upper and lower surface unbalance stress during overtension roller group; Leash does not contact hot-strip, avoids band steel to cut off leash.
Accompanying drawing explanation
Fig. 1 is that processing method taken the lead by the traditional hot-strip that the present invention relates to.
Fig. 2 takes the lead shear treatment mode schematic diagram for hot-strip that the embodiment of the present invention provides.
Fig. 3 takes the lead threading mode schematic diagram for hot-strip that the embodiment of the present invention provides.
Fig. 4 crosses the schematic diagram of the mode of " S " type tension roll assembly for band steel that the embodiment of the present invention provides.
The traction schematic diagram with holes that Fig. 5 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in detail.
Embodiment 1
Utilize hand electric to cut and cut shape as shown in Figure 2 on hot rolling is taken the lead, taking the lead head 4 length is 200mm, and width is about 200mm, and taking the lead the length sides 9 of head 4 is 120 ° with the transition angle of band back of head 5; Gas cutting is utilized to be slot in band steel 3 central aperture 6(the present embodiment), hole 6 length 100mm, width 50mm, can overlap along taking the lead head 4 with the both sides of being with the transition wire 10 of back of head 5 to fold metapore 6.Then leash 2 is penetrated hole 6 below band steel 3, in traction with holes 15, penetrate drawing bar in drawing bar 1(the present embodiment is iron staff) and strain leash 2.Next, will take the lead head 4 along transition wire 10 upwards folding (see Fig. 3), be iron staff by drawing bar in drawing bar 1(the present embodiment) be wrapped in and take the lead in the middle of head 4, and hit tight with iron hammer, making to take the lead head about 4 two parts suits together.Electric welding machine is finally utilized to be welded together by the two parts up and down suited.
Embodiment 2
Utilize hand electric to cut and cut shape as shown in Figure 2 on hot rolling is taken the lead, taking the lead head 4 length is 200mm, and width is about 350mm, and taking the lead the length sides 9 of head 4 is 130 ° with the transition angle of band back of head 5; Gas cutting is utilized to be slot in band steel 3 central aperture 6(the present embodiment), the length 120mm in hole 6, width 70mm, can overlap along taking the lead head 4 with the both sides of being with the transition wire 10 of back of head 5 to fold metapore 6.Then leash 2 is penetrated hole 6 below band steel 3, in traction with holes 15, penetrate drawing bar in drawing bar 1(the present embodiment is iron staff) and strain leash 2.Next, will take the lead head 4 along transition wire 10 upwards folding (see Fig. 3), be iron staff by drawing bar in drawing bar 1(the present embodiment) be wrapped in and take the lead in the middle of head 4, and hit tight with iron hammer, making to take the lead head about 4 two parts suits together.Electric welding machine is finally utilized to be welded together by the two parts up and down suited.
Embodiment 3
Utilize hand electric to cut and cut shape as shown in Figure 2 on hot rolling is taken the lead, taking the lead head 4 length is 300mm, and width is about 400mm, and taking the lead the length sides 9 of head 4 is 140 ° with the transition angle of band back of head 5; Gas cutting is utilized to be slot in band steel 3 central aperture 6(the present embodiment), the length 130mm in hole 6, width 80mm, can overlap along taking the lead head 4 with the both sides of being with the transition wire 10 of back of head 5 to fold metapore 6.Then leash 2 is penetrated hole 6 below band steel 3, in traction with holes 15, penetrate drawing bar in drawing bar 1(the present embodiment is iron staff) and strain leash 2.Next, will take the lead head 4 along transition wire upwards folding (see Fig. 3), be iron staff by drawing bar in drawing bar 1(the present embodiment) be wrapped in and take the lead in the middle of head 4, and hit tight with iron hammer, making to take the lead head about 4 two parts suits together.Electric welding machine is finally utilized to be welded together by the two parts up and down suited.
Embodiment 4
Utilize hand electric to cut and cut shape as shown in Figure 2 on hot rolling is taken the lead, taking the lead head 4 length is 300mm, and width is about 400mm, and taking the lead the length sides 9 of head 4 is 140 ° with the transition angle of band back of head 5; Gas cutting is utilized to be slot in band steel 3 central aperture 6(the present embodiment), the length 130mm in hole 6, width 80mm, can overlap along taking the lead head 4 with the both sides of being with the transition wire 10 of back of head 5 to fold metapore 6.Then leash 2 is penetrated hole 6 below band steel 3, in traction with holes 15, penetrate drawing bar in drawing bar 1(the present embodiment is iron staff) and strain leash 2.Next, will take the lead head 4 along transition wire 10 upwards folding (see Fig. 3), be iron staff by drawing bar in drawing bar 1(the present embodiment) be wrapped in and take the lead in the middle of head 4, and hit tight with iron hammer, making to take the lead head about 4 two parts suits together.Electric welding machine is finally utilized to be welded together by the two parts up and down suited.
Embodiment 5
Utilize hand electric to cut and cut shape as shown in Figure 2 on hot rolling is taken the lead, taking the lead head 4 length is 400mm, and width is about 500mm, and taking the lead the length sides 9 of head 4 is 150 ° with the transition angle of band back of head 5; Gas cutting is utilized to be slot in band steel 3 central aperture 6(the present embodiment), the length 150mm in hole 6, width 100mm, can overlap along taking the lead the both sides of head 4 with the folding rear slot 6 of the transition wire 10 of band back of head 5.Then leash 2 is penetrated slot 6 below band steel 3, in traction with holes 15, penetrate drawing bar in drawing bar 1(the present embodiment is iron staff) and strain leash 2.Next, will take the lead head 4 along transition wire 10 upwards folding (see Fig. 3), be iron staff by drawing bar in drawing bar 1(the present embodiment) be wrapped in and take the lead in the middle of head 4, and hit tight with iron hammer, making to take the lead head about 4 two parts suits together.Electric welding machine is finally utilized to be welded together by the two parts up and down suited.
Embodiment 6
Utilize hand electric to cut and cut shape as shown in Figure 2 on hot rolling is taken the lead, taking the lead head 4 length is 200mm, and width is about 350mm, and taking the lead the length sides 9 of head 4 is 130 ° with the transition angle of band back of head 5; Gas cutting is utilized to be circular port in band steel 3 central aperture 6(the present embodiment), the diameter 150mm in hole 6, can overlap along taking the lead head 4 with the both sides of being with the transition wire 10 of back of head 5 to fold metapore 6.Then leash 2 is penetrated hole 6 below band steel 3, in traction with holes 15, penetrate drawing bar in drawing bar 1(the present embodiment is iron staff) and strain leash 2.Next, will take the lead head 4 along transition wire 10 upwards folding (see Fig. 3), be iron staff by drawing bar in drawing bar 1(the present embodiment) be wrapped in and take the lead in the middle of head 4, and hit tight with iron hammer, making to take the lead head about 4 two parts suits together.Electric welding machine is finally utilized to be welded together by the two parts up and down suited.
Embodiment 7
Utilize hand electric to cut and cut shape as shown in Figure 2 on hot rolling is taken the lead, taking the lead head 4 length is 200mm, and width is about 350mm, and taking the lead the length sides 9 of head 4 is 130 ° with the transition angle of band back of head 5; Gas cutting is utilized to be slotted eye in band steel 3 central aperture 6(the present embodiment), the major axis 150mm in hole 6, minor axis 100mm, can overlap along taking the lead head 4 with the both sides of being with the transition wire 10 of back of head 5 to fold metapore 6.Then leash is penetrated hole 6 below band steel, in traction with holes 15, penetrate drawing bar in drawing bar 1(the present embodiment is iron staff) and strain leash 2.Next, will take the lead head along transition wire 10 upwards folding (see Fig. 3), be iron staff by drawing bar in drawing bar 1(the present embodiment) be wrapped in and take the lead in the middle of head 4, and hit tight with iron hammer, making to take the lead head about 4 two parts suits together.Electric welding machine is finally utilized to be welded together by the two parts up and down suited.
Time " S " type tension roll assembly (see the Fig. 4) that will pass during hot-strip threading, first press the track of band steel walking through slewing rollers 12 and No. two slewing rollers 11, and push down leash with lower compression roller, the motor of tension roll assembly is utilized to drive leash to advance, when leash with take the lead junction arrives lower compression roller 13 front portion time, fall lower compression roller 13, continue threading.When taking the lead the upper pressure roller continuation of pressure after through upper pressure roller 14 threading, complete jockey pulley crossing process.Of the present invention to take the lead to take the lead in processing method running orbit identical with leash 2, and easy bilateral bends larger angle and passes through tension roll assembly.Conventional method (see Fig. 1) pins leash with iron staff, take the lead under the effect of leash easy to be one-sided bending, when needing through jockey pulley to take the lead to tilt percussion device when bending to opposite side, great difficulty is brought to threading work, processing method of taking the lead of the present invention is fixed by taking the lead the afterwards folding and drawing bar 1 of head 4, make drawing bar 1 unanimously stressed to band steel 3 upper and lower surface, take the lead to there will not be the phenomenon tilting percussion device because of upper and lower surface unbalance stress when therefore crossing slewing rollers
Of the present inventionly take the lead in processing method, taking the lead length sides 9 and the transition angle of band back of head 5 of head 4, to take the lead more greatly head trapezoidal portions more sharp-pointed, more easily bends, but need band steel 3 length of shearing longer during threading; More small band head portion trapezoidal portions is more blunt to take the lead the transition angle of length sides 9 and band back of head 5 of head 4, needs the strip length sheared shorter, but not flexible during threading.Consider angular range better 120 ° of-150 ° of effects.
Of the present inventionly take the lead in processing method, when hole 6 is slot, length sides is 100-150mm, width edge is 50-100mm; When hole 6 is circular ports, the diameter of circular port is 100-150mm, and when hole 6 is slotted eye, the length of slotted eye major axis is 100-150mm, and the length of slotted eye minor axis is 50-100mm.The object of perforate 6 is that hole 6 is excessive, and the area that drawing bar 1 contacts with the strip can diminish in order to pass leash 2, easily stretcher strain or the fracture of band steel 3; Hole 6 is too small, and leash 2 cannot be passed; Therefore according to commonly using leash 2 width and considering with drawing bar 1 contact area, it is proper that above size is got in hole 6.
It should be noted last that, above embodiment is only in order to illustrate implementer's case of this material and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (5)
1. take the lead a processing method before hot-strip threading, it is characterized in that: comprise the steps:
Taking the lead to cut and take the lead head (4) at hot-strip, described take the lead head (4) to band back of head (5) direction from transition wire (10) s gradually wider than crossing, take the lead head (4) length sides (9) be with back of head (5) transition angle be 120 ° ~ 150 °;
At band steel (3) central aperture (6), described hole (6) is equal apart from taking the lead the distance of two length sides (9), described transition wire (10) is through hole (6), and the both sides along the folding metapore (6) of transition wire (10) can overlap;
Leash (2) is penetrated hole (6) from band steel (3) below, in traction (15) with holes, penetrate drawing bar (1) and strain leash (2), to take the lead head (4) upwards folds along transition wire (10), drawing bar (1) is wrapped in and takes the lead in the middle of head (4) and to hit tight, make to take the lead head (4) up and down two parts suit together;
Weld together taking the lead the part that head (4) suits up and down; Describedly take the lead that head (4) length is 200-400mm, width is 200-500mm; Described hole (6) is slot, and the length of two length sides (9) of hole (6) is 100-150mm, the length of width edge is 50-100mm.
2. take the lead processing method before hot-strip threading as claimed in claim 1, it is characterized in that: described hole (6) are circular ports, the diameter of circular port is 100-150mm.
3. take the lead processing method before hot-strip threading as claimed in claim 1, it is characterized in that: described hole (6) are slotted eyes, the length of elliptical aperture major axis is 100-150mm, and the length of elliptical aperture minor axis is 50-100mm.
4. take the lead processing method before hot-strip threading as claimed in claim 1, it is characterized in that: described drawing bar (1) is metal bar.
5. take the lead processing method before hot-strip threading as claimed in claim 4, it is characterized in that: described metal bar is iron staff.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310418672.XA CN103464478B (en) | 2013-09-13 | 2013-09-13 | Processing method for lead before hot rolled strip threading |
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| CN201310418672.XA CN103464478B (en) | 2013-09-13 | 2013-09-13 | Processing method for lead before hot rolled strip threading |
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| CN103464478A CN103464478A (en) | 2013-12-25 |
| CN103464478B true CN103464478B (en) | 2015-07-15 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104073615A (en) * | 2014-06-09 | 2014-10-01 | 首钢总公司 | Continuously annealed strip steel head |
| CN104209350A (en) * | 2014-09-18 | 2014-12-17 | 攀钢集团攀枝花钢钒有限公司 | Band steel traction connection structure and band penetration method for continuous band steel unit |
| CN113751516A (en) * | 2020-06-05 | 2021-12-07 | 上海梅山钢铁股份有限公司 | Method for rapidly threading inlet loop |
| CN113751513A (en) * | 2020-06-05 | 2021-12-07 | 上海梅山钢铁股份有限公司 | Method for rapidly recovering production of broken belt of withdrawal and straightening machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397877A (en) * | 2010-09-16 | 2012-04-04 | 鞍钢股份有限公司 | Sheet tape-threading and locating and punching device and method |
| CN202272932U (en) * | 2011-09-30 | 2012-06-13 | 鞍钢股份有限公司 | Steel strip traction assisting device |
| CN202290773U (en) * | 2011-09-13 | 2012-07-04 | 中冶天工上海十三冶建设有限公司 | Strip steel threading traction head for trial run of strip steel production line |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0791591B2 (en) * | 1986-10-30 | 1995-10-04 | 川崎製鉄株式会社 | Method and apparatus for threading in continuous annealing furnace |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397877A (en) * | 2010-09-16 | 2012-04-04 | 鞍钢股份有限公司 | Sheet tape-threading and locating and punching device and method |
| CN202290773U (en) * | 2011-09-13 | 2012-07-04 | 中冶天工上海十三冶建设有限公司 | Strip steel threading traction head for trial run of strip steel production line |
| CN202272932U (en) * | 2011-09-30 | 2012-06-13 | 鞍钢股份有限公司 | Steel strip traction assisting device |
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Application publication date: 20131225 Assignee: BEIJING SHOUGANG COLD ROLLING THIN PLATE CO., LTD. Assignor: Capital Iron & Steel General Company Contract record no.: 2015990001019 Denomination of invention: Processing method for lead before hot rolled strip threading Granted publication date: 20150715 License type: Common License Record date: 20151209 |
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Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee before: Capital Iron & Steel General Company |
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