CN2377023Y

CN2377023Y - Heat coiling drum

Info

Publication number: CN2377023Y
Application number: CN 99231003
Authority: CN
Inventors: 汤有本
Original assignee: CHINA NO 2 HEAVY MACHINERY GRO
Current assignee: China Erzhong Group Deyang Heavy Industries Co Ltd
Priority date: 1999-02-14
Filing date: 1999-02-14
Publication date: 2000-05-10
Anticipated expiration: 2009-02-14

Abstract

The utility model provides a heat coiling drum during hot continuous rolling, which is composed of an inlet guide slot, a bending roller, an adjustable device, a forming roller, a cradle roller, a decoiling device, a stabilizer, and a transfer mechanism. A swing roller can swing certain angles, and the roller gap of the bending roller can be adjusted via a jackscrew. The position of the forming roller can be adjusted via a hydraulic cylinder, and the forming roll and the cradle roller to cause the hydraulic cylinder to form a fixed circle via the hydraulic cylinder. The central belt billet after rough roller can conduct the coiling without a core and is completed by the cradle roll, and a decoiling device can convey the back part of an original belt steel to a finishing rolling mill for rolling. The utility model can effectively reduce the difference temperature of the front end and the back end of the central belt billet of a hot continuous rolling wire and save energy and investment.

Description

Coil Box

The utility model belongs to the visual plant in hot continuous casting and the rolling line, and particularly a kind of preceding made-up belt of hot-rolling finishing mill that is used for carries out the Coil Box that centreless batches, and is suitable for old rolling line transformation and newly-built middle-size and small-size hot-rolling line use.

According to the knowledge of the applicant: present domestic this equipment that also do not have, and traditional hot-rolling line, in order to reduce the temperature difference of band steel toe tail, normally finishing mill adopts increasing speed rolling, the capacity of main driving motor must increase about 30% to 40% like this, for guaranteeing the finishing temperature of band afterbody, have to improve the tapping temperature of rolled piece blank in addition, increase energy consumption.

The purpose of this utility model is intended to overcome above-mentioned the deficiencies in the prior art and does not locate, and develops a kind of Coil Box that is installed between roughing mill and the crop flying shear.

The purpose of this utility model adopts following technical proposals to realize: guide groove will enter the mouth, bending roll and lash adjusting device thereof, forming rolls and cradle roll, uncoiler, stabilizer, transfer mechanism is installed on the frame, but the deflection roll of pendulum angle and movable guide plate form and can guide intermediate blank to enter the inlet guide groove of bending roll roll gap, the bending roll that can make the made-up belt bending forming by the direct current generator transmission is to be made of last two bending rolls and next root bending roll, forming rolls is by a roller, roller frame and location backstop are formed, forming rolls and be used to accept to be shaped after the two rollers maintenance disc of cradle roll of made-up belt volume contact.

Described uncoiler places on the cradle roll, and by slewing equipment, uncoiling arm and insertion arm connect to form, and insert the arm end uncoiling cutter is installed.

The slewing equipment of described uncoiler has stabilizer, by two push pedals of guide with promote cylinder and be connected.

Be in the transfer mechanism that can move to the downstream roller-way from this roller of cradle roll position, by plug, transfer arm and slewing equipment and form, plug and hydraulic cylinder are movingly.

The plug and the hydraulic permeability reversing gear of transfer mechanism are movingly.

Can make the uncoiling cutter reach a definite position by hydraulic unit driver.

Parallel the moving of stabilizer guide plate is to realize by hydraulic cylinder.

The plug running of transfer mechanism is to realize by hydraulic cylinder.

The plug running of transfer mechanism is to realize by slewing equipment.

Because this Coil Box of said structure is that the method that adopts centreless to batch is that middle made-up belt batches, uncoiling then makes band steel afterbody become head, delivers to finishing mill and is rolled; Play the effect of insulation soaking when not opening fully at middle made-up belt volume, help reducing the temperature difference like this, make the vertical mechanical performance uniformity of band, and reduce the thickness deviation of length direction with the steel toe tail.In addition in the hot-rolling line, usually the distance between roughing mill and the crop flying shear is longer, after this Coil Box is set, Coil Box and distance between the roughing mill generally be that similar continuous hot-rolling mill should distance about 1/2, even it is shorter, can shorten dramatically the length of delay table and factory building like this, so the utlity model has the advantage of saving the energy and investment.

Below in conjunction with accompanying drawing in detail it is described in detail.

Fig. 1 is mechanism principle figure of the present utility model (arrow is represented the workpiece motion s direction among this figure).

Fig. 2 is the vertical view (arrow is represented the rolled piece direction of advance among this figure) of the utility model structure.

Fig. 3 is the A-A cutaway view of Fig. 2.

Fig. 4 is the front view (arrow is represented the rolled piece direction of advance among this figure) of the utility model structure.

With reference to Fig. 1-Fig. 4, inlet guide groove 1 is made up of movable guide plate 10 and deflection roll, this deflection roll roller frame makes deflection roll around a fixed rotating shaft deflection certain angle (20-24 °) by hydraulic cylinder 9, forms inlet guide groove 1 with guide plate 10, and the guiding intermediate blank enters the bending roll roll gap.Bending roll and lash adjusting device 3 thereof: bending roll goes up bending roll by two and a following bending roll is formed.Upper and lower bending roll is by the direct current generator transmission, and by worm reduction gear, screw jack 12 makes bending roll formation up and down set roll gap to last bending roll by motor 11.When middle made-up belt passed through the bending roll roll gap, bending roll made the made-up belt bending forming.According to the material and the specification of supplied materials, by the roll gap between the bending roll about the housing screw adjustment, make made-up belt through behind the bending roll, reach desired bending curvature.Cradle roll 7 and forming rolls 2 direct current generator transmission.Made-up belt volume after cradle roll 7 is used to accept to be shaped.When made-up belt when initially batching, cradle roll 7 is accepted the roll coil of strip by hydraulic cylinder 14 liftings, along with roll coil of strip diameter constantly increases, cradle roll lifting cylinder 13 steadily descends winding up roller 7, carries out uncoiling until the uncoiling position.Forming rolls 2 is made up of a roller, roller frame and location backstop.When batching beginning, forming rolls 2 (or shaping guide plate) is fixed on ready position by backstop, when the shaping of roll coil of strip eyelet and after by cradle roll 7 acceptance, forming rolls 2 makes it rise to ready position by lift cylinders 13, the lift cylinders 13 of forming rolls 2 makes forming rolls 2 remain with roll coil of strip external diameter to contact, finish until batching in coiling process.When made-up belt does not need to carry out the centre when batching, forming rolls 2 places horizontal level, leads directly to rolling.A roller in cradle roll 7 outsides makes it turn to the limes superiors position around inboard roller by hydraulic cylinder 14.Two rollers by forming rolls 2 and cradle roll 7 just form 3 fixedly circles that contact like this.Uncoiler 4 is made up of slewing equipment 15, uncoiling arm 16 and insertion arm 17.After the coiling process of the roll coil of strip was finished, slewing equipment 15 just drove uncoiling arm 16 and inserts arm 17 and arrives the operating position, and the slotting tool 19 that inserts arm 17 ends is inserted into and carries out uncoiling between the band edge and the roll coil of strip.Transfer mechanism 6 is made up of plug 21, handover arm 20 and slewing equipment.Be used for the volume of the made-up belt after the uncoiling is moved to the downstream roller-way from cradle roll 7, continue uncoiling.Stabilizer 5 is made up of two push pedals 22 and the promotion cylinder of guide.Stabilizer 5 makes 2 push pedals 22 form the certain opening degree by promoting cylinder before batching, and the guiding made-up belt makes roll coil of strip side smooth.Above-mentioned inlet guide groove 1, forming rolls 2, bending roll and lash adjusting device 3, uncoiler 4, stabilizer 5, transfer mechanism 6 and cradle roll 7 are installed on the frame 8.

This Coil Box is installed in after the last frame roughing mill, before the crop flying shear during use.Middle blank after roughing when needs batch, before made-up belt arrives, rises deflection roll guiding made-up belt in advance and moves upward, and by three predefined roll gap of bending roll of this Coil Box, the head of band steel is by setting requirement bending forming then.Along with the diameter dimension increasing of the roll coil of strip, cradle roll 7 progressively descends.When batching end, a roller in the cradle roll 7 is in below the roll line, and makes the afterbody of band steel be in suitable position.During uncoiling, the slewing equipment of uncoiler 4 15 drives uncoiling arms 16 and descends, and inserts arm 17 simultaneously and also is urged to the operating position by hydraulic cylinder 18, and the uncoiling cutter 19 that inserts arm 17 ends is inserted in the slit between the band edge and the roll coil of strip.At this moment, drive cradle rolls 7 reverse rotations by motor 11, uncoiling cutter 19 is opened coil of strip, original magnetic tape trailer then becomes takes the lead, head is delivered to the pinch roll clamping and is moved on, and irregular head is after being cut on the crop flying shear, and made-up belt enters first finishing mill and is rolled.After roll coil of strip uncoiling, uncoiler 4 rises to the precalculated position, waits for the uncoiling of next coil of strip.When uncoiler rises to the precalculated position simultaneously, start two plugs 21 on the handover arm 20 that is in cradle roll 7 positions, make it to penetrate roll coil of strip endoporus from roll coil of strip both sides, slewing equipment drives transfers arm 20, the roll coil of strip is transplanted on the roller-way of downstream from cradle roll 7, continue uncoiling then, finish until roll coil of strip uncoiling.Simultaneously.Batching on the position, each roller arrives desired location to be rolled up, and waits for batching of next coil of strip.

When made-up belt does not need to carry out the centre when batching, this Coil Box is carried out straight-through program, and promptly Coil Box is used as delay table.At this moment, with the deflection roll in the inlet guide groove 1, forming rolls 2 and cradle roll 7 are all reduced to horizontal level, and made-up belt can pass through smoothly.

Claims

1, a kind of preceding made-up belt of hot-rolling finishing mill that is used for carries out the Coil Box that centreless batches, it is characterized in that: the inlet guide groove, bending roll and lash adjusting device thereof, forming rolls and cradle roll, uncoiler, stabilizer, transfer mechanism is installed on the frame, but the deflection roll of pendulum angle and movable guide plate form and can guide intermediate blank to enter the inlet guide groove of bending roll roll gap, the bending roll that can make the made-up belt bending forming by the direct current generator transmission is to be made of last two bending rolls and next root bending roll, forming rolls is by a roller, roller frame and location backstop are formed, forming rolls and be used to accept to be shaped after the two rollers maintenance disc of cradle roll of made-up belt volume contact.

2, Coil Box according to claim 1 is characterized in that: place the uncoiler on the cradle roll, by slewing equipment, uncoiling arm and insertion arm connect to form, and insert the arm end uncoiling cutter is installed.

3, Coil Box according to claim 1 is characterized in that: the slewing equipment of uncoiler has stabilizer, by two push pedals of guide with promote cylinder and be connected.

4, according to claim described 1 described Coil Box, it is characterized in that: be in the transfer mechanism that can move to the downstream roller-way from this roller of cradle roll position, by plug, transfer arm and slewing equipment and form, plug and hydraulic cylinder are movingly.

5, Coil Box according to claim 4 is characterized in that: the plug and the hydraulic permeability reversing gear of transfer mechanism are movingly.