CN201304426Y

CN201304426Y - Recoiling machine and pinch roll and press roll thereof

Info

Publication number: CN201304426Y
Application number: CNU2008203028526U
Authority: CN
Inventors: 雷华北
Original assignee: Panzhihua New Steel and Vanadium Co Ltd
Current assignee: Pangang Group Steel Vanadium and Titanium Co Ltd
Priority date: 2008-11-20
Filing date: 2008-11-20
Publication date: 2009-09-09
Anticipated expiration: 2018-11-20

Abstract

The utility model discloses a recoiling machine which can be automatically corrected when recoiling last section of band steel, and a pinch roll and a press roll thereof. The recoiling machine comprises a turning roll, the pinch roll, a wound roll and the press roll, wherein the turning roll and the pinch roll are correspondingly arranged; the wound roll and the press roll are correspondingly arranged; and the roll shapes of the pinch roll and the press roll are in a waist drum shapes. The utility model utilizes the wais-drum-shaped pinch roll and press roll to realize automatic correction to the band steel with deflection, increases the surface friction coefficient of the pinch roll and the press roll, increases the deflection resistance, is simple and has easy operation and good effect.

Description

The pinch roll of coiling machine and use thereof and pressure roller

Technical field

The utility model relates to the coiling machine of belt steel rolling, pinch roll that particularly uses on coiling machine and pressure roller.

Background technology

Coiling machine is used to batch the band steel.After the band steel was cut off by flying shear, the band steel had lost tension force, and deviation correcting device is stopped using simultaneously, and coiling machine is when batching this section strip steel, and pinch roll is depressed, and clamps the band steel with slewing rollers, and pinch roll is connected active rotation with power set; Pressure roller rises and withstands coil of strip simultaneously, and pressure roller is passive rotation with the rotation of reel, finishes and batches.The roll shape of pinch roll and pressure roller is the constant cylindrical roller of diameter, because pinch roll is two its knee-actions of air cylinder driven, the deviation of the bleed pressure effect of the foozle of cylinder and two cylinders, the axis of pinch roll can not with the axis absolute parallel of slewing rollers, certainly will be between two rollers shape α in an angle, cause of the motion of band steel, band steel whipping sideslip occurs at the slewing rollers axis direction.Pressure roller is similar to the effect situation of slewing rollers to the effect situation and the pinch roll of the coil of strip on the reel, because two gaps that guide rod slides in bearing of pressure roller lifting, also can not make the pressure roller axis and the coil of strip axis absolute parallel of non-live-roller, certainly will form a small α ' angle, also can occur being with steel whipping sideslip in such cases.

The utility model content

In order to overcome the deficiency that is prone to strip running deviation when existing coiling machine batches last section strip steel, technical problem to be solved in the utility model provide a kind of can be when batching last section strip steel the coiling machine of automatic deviation correction and the pinch roll and the pressure roller of use thereof.

The technical scheme that its technical problem that solves the utility model adopts is: coiling machine, comprise corresponding slewing rollers and the pinch roll that is provided with, and corresponding reel and the pressure roller that is provided with, the roll shape of described pinch roll and/or pressure roller is dolioform.

Coiling machine pinch roll, the roll shape of described pinch roll are dolioform.

Coiling machine pressure roller, the roll shape of described pressure roller are dolioform.

The beneficial effects of the utility model are: utilize dolioform pinch roll and pressure roller to realize automatic deviation correction to strip running deviation; Simultaneously lining is set, and selects rational lining surface roughness, be used for increasing the skin-friction coefficient of pinch roll and pressure roller, increase the sideslip resistance at roll surface, simple, effective.

Description of drawings

Fig. 1 is the schematic diagram of coiling machine.

Fig. 2 is the schematic diagram that existing cylindrical pinch roll is clamped the band steel.

Fig. 3 is the schematic diagram that existing cylindrical roller withstands coil of strip.

Fig. 4 is the schematic diagram that the dolioform pinch roll of the utility model is clamped the band steel.

Fig. 5 is the enlarged diagram of I portion among Fig. 4.

Fig. 6 is the enlarged diagram of II portion among Fig. 4.

Fig. 7 is the schematic diagram that the dolioform pressure roller of the utility model withstands coil of strip.

Fig. 8 is the enlarged diagram of III portion among Fig. 7.

Fig. 9 is the enlarged diagram of IV portion among Fig. 7.

Be labeled as among the figure, the 1-slewing rollers, the 2-pinch roll, 3-is with steel, 4-coil of strip, 5-reel, 6-pressure roller.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As Fig. 1, Fig. 4～shown in Figure 9, coiling machine of the present utility model comprises corresponding slewing rollers 1 and the pinch roll 2 that is provided with, and corresponding reel 5 and the pressure roller 6 that is provided with, and the roll shape of described pinch roll 2 and/or pressure roller 6 is dolioform.Described roll shape is dolioform being meant: the diameter of roller is reduced to the centre gradually by two ends, and the outer contour of roller on its axial symmetrical section is shaped as the circular cone or the approximate circular cone of two symmetries.

As Fig. 1, Fig. 4, Fig. 5 and shown in Figure 6, after adopting the roll shape of above-mentioned shape, when batching the last section strip steel after cutting off, pinch roll 1 is pushed down the both sides portion of band steel 3 on the slewing rollers 2, pinch roll 1 two ends are to the centre position, form two angle α 1, α 2, the band steel 3 at middle part is in vacant state, under the power set effect, do not have sideslip when rotating on the slewing rollers 2 if band steel 3 leans against, the pressure from pinch roll 1 that band steel 3 two ends are subjected to is identical, if sideslip is arranged, promptly axially have two sideslip power at slewing rollers 2, two sideslip power are because α ₁, α ₂The angle reason will cancel out each other or make sideslip to make a concerted effort to diminish, and in the constant situation of frictional force, reaches the function that overcomes sideslip power; Owing to increase the lining roughness, make frictional force become big, promoted the ability that overcomes sideslip power, prevented the whipping strip running deviation; Simultaneously, it is unsettled to be with steel 3 to be at the middle part of slewing rollers 2, and the centrifugal force at its middle part makes band steel 3 have and plants the trend of being pulled in the middle part of moving to greater than the centrifugal force of limit portion, also helps being with steel 3 by pinch roll 1 automatic deviation correction.

In like manner, as Fig. 1, Fig. 7, Fig. 8 and shown in Figure 9, if coil of strip 4 is considered as slewing rollers 2, pressure roller 6 is considered as pinch roll 1, the outermost band steel of coil of strip is considered as the band steel 3 between slewing rollers 2 and the pinch roll 1, dolioform pressure roller 6 two ends compress outermost band steel, form two angle α ' to two ends in the middle of the pressure roller ₁, α ' ₂, also can reach the purpose of automatic deviation correction.

Coiling machine pinch roll of the present utility model, the roll shape of described pinch roll 2 are dolioform.

Coiling machine pressure roller of the present utility model, the roll shape of described pressure roller 6 are dolioform.

For improving rectifying effect, the roll surface of described pinch roll 2 and/or pressure roller 6 is provided with lining, to increase the coefficient of friction of roll surface, increases the frictional force that overcomes sideslip power.

Be the protection of consideration to strip steel surface quality, the material of described roll surface lining can adopt polyurethane material, and its surface roughness is generally 6.3.

Embodiment:

As shown in Figure 4, described pinch roll 1 is dolioform, and roll surface is provided with the polyurethane lining, pinch roll 1 surface roughness is increased to 6.3, be equivalent to increase the coefficient of friction between dolioform pinch roll 1 and the band steel 3, thereby increased frictional force, reached the purpose that increases band steel 3 sideslip resistances.

As shown in Figure 7, described pressure roller 6 is dolioform, and roll surface is provided with the polyurethane lining, pressure roller 6 surface roughnesses are increased to 6.3, be equivalent to increase the coefficient of friction between dolioform pressure roller 6 and the band steel 3, thereby increased frictional force, reached the purpose that increases band steel 3 sideslip resistances.

Claims

[claim 1] coiling machine comprises corresponding slewing rollers (1) and the pinch roll (2) that is provided with, and corresponding reel (5) and the pressure roller (6) that is provided with, and it is characterized in that: the roll shape of described pinch roll (2) and/or pressure roller (6) is dolioform.
[claim 2] coiling machine as claimed in claim 1 is characterized in that: the roll surface of described pinch roll (2) and/or pressure roller (6) is provided with lining.
[claim 3] coiling machine as claimed in claim 2 is characterized in that: the material of lining adopts polyurethane material.
[claim 4] coiling machine pinch roll is characterized in that: the roll shape of described pinch roll (2) is dolioform.
[claim 5] coiling machine pinch roll as claimed in claim 4 is characterized in that: the roll surface of described pinch roll (2) is provided with lining.
[claim 6] coiling machine pinch roll as claimed in claim 5 is characterized in that: the material of lining adopts polyurethane material.
[claim 7] coiling machine pressure roller is characterized in that: the roll shape of described pressure roller (6) is dolioform.
[claim 8] coiling machine pressure roller as claimed in claim 7 is characterized in that: the roll surface of described pressure roller (6) is provided with lining.
[claim 9] coiling machine pressure roller as claimed in claim 8 is characterized in that: the material of lining adopts polyurethane material.