CN204338590U - A kind of single-stand four-high rolling mill - Google Patents

Abstract

The utility model discloses a kind of single-stand four-high rolling mill, comprise blow device, top working roll (3), bottom working roll (4) and backing roll (5), described backing roll (5) is in the top of top working roll (3), described top working roll (3) is in the top of bottom working roll (4), described blow device comprises feeds plate (1) and lower hello plate (2), the front end of feeding plate (1) on described is provided with air knife (6), the upper end of feeding plate (1) on described is provided with a blow gun (11), described blow gun (11) points to the roll gap between top working roll (3) and backing roll (5), multiple purging mouth (21) is provided with in described lower front end of feeding plate (2).The utility model has added blow gun, air knife and blowout mouth, and decrease the band oil situation between working roll to relevant backing roll, also can eliminate the greasy dirt in band upper and lower end face, structure is simple, and cost is lower, applied widely simultaneously.

Description

A kind of single-stand four-high rolling mill

Technical field

The utility model relates to band manufacture field, particularly a kind of single-stand four-high rolling mill.

Background technology

The single-stand four-high rolling mill generally used at present, it is that four or six purge mouths and rolling line forms an angle that its outlet purges what feed that plate adopts usually, splayed is symmetrical, the air-flow of blowout is refracted on band, extend to roll gap place, ROLLING OIL on band is arrived in edge flow away, the strip surface that milling train is exported is clean, but such mode is for the thick material of wide cut, because the angle inconvenience of blow gun regulates, the bad grasp of blast size, the bad control of strip surface band oil mass, band greasy dirt is more.

Utility model content

The technical problems to be solved in the utility model there is provided a kind of energy and improves the single-stand four-high rolling mill blowing oily effect.

The technical solution of the utility model is as follows:

A kind of single-stand four-high rolling mill, comprise blow device, top working roll, bottom working roll and backing roll, described backing roll is above top working roll, described top working roll is above bottom working roll, described blow device comprises feeds plate and lower hello plate, the front end of feeding plate on described is provided with air knife, and the upper end of feeding plate on described is provided with a blow gun, and described blow gun points to the roll gap between top working roll and backing roll; Multiple purging mouth is provided with in described lower front end of feeding plate.

Adopt above structure, a blow gun is added in upper upper end of feeding plate, roll gap facing to top working roll and backing roll blows, produce a crossflow, effectively ROLLING OIL is blowed to milling train both sides, add an air knife in upper front end of feeding plate again, air knife blows out air continuously from air cleft, holds the ROLLING OIL that top working roll falls, finally, with lower multiple purging mouths of feeding plate, facing to the band in roll gap exit, the direction, edge to band is blown, finally like this reach to the effect of the upper and lower surface degreasing of band, structure is simple, easy to operate, applied widely.

In order to better hold the ROLLING OIL that top working roll falls, as preferably, described air knife comprises air knife block and lower air knife block, front end and the lower air knife block correspondence position of described upper air knife block form an air outlet, the width of this air outlet is 0.5mm, and the air-out direction of described air outlet overlaps with the tangent line of top working roll circular arc correspondence position; Interstice coverage between the top of described lower air knife block front end and top working roll is 2 ~ 5mm, the width of described air knife and the width of top working roll suitable.

In order to better ROLLING OIL be blowed to milling train both sides, as preferably, the bore scope of described blow gun is 20 ~ 30mm.

In order to be suitable for the band of different size, better ROLLING OIL blowout is put in band lower surface simultaneously, as preferably, multiple described purging mouth is symmetrical arranged in lower plate arranged on left and right sides of feeding, and the air outlet homocline purging mouth described in every side is directed upwards towards the edge of bottom working roll respective side.

Beneficial effect: the utility model has added blow gun, air knife and blowout mouth, decrease the band oil situation between backing roll and related work roller, also can eliminate the greasy dirt in band upper and lower end face, structure is simple, and cost is lower, applied widely simultaneously.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the structural representation of air knife.

Fig. 3 purges mouth and lower structural representation of feeding plate.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As Fig. 1, shown in Fig. 2 and Fig. 3, the utility model is by blow device, top working roll 3, the compositions such as bottom working roll 4 and backing roll 5, described backing roll 5 is above top working roll 3, described top working roll 3 is above bottom working roll 4, described blow device comprises feeds plate 1 and lower hello plate 2, the front end of feeding plate 1 on described is provided with air knife 6, described air knife 6 comprises air knife block 61 and lower air knife block 62, front end and lower air knife block 62 correspondence position of described upper air knife block 61 form an air outlet, the width of this air outlet is 0.5mm, the air-out direction of described air outlet overlaps with the tangent line of top working roll 3 circular arc correspondence position, interstice coverage between the top of described lower air knife block 62 front end and top working roll 3 is 2 ~ 5mm, the width of described air knife and the width of top working roll 3 suitable.

The upper end of feeding plate 1 on described is provided with a blow gun 11, and the bore scope of described blow gun 11 is 20 ~ 30mm, and be preferably 25.4mm, described blow gun 11 points to the roll gap between top backing up roll 3 and working roll 5; Be provided with eight described purging mouths 21 of purging 21, eight, mouth in described lower front end of feeding plate 2 to be symmetrical arranged in lower plate 2 arranged on left and right sides of feeding, four, every side, the air outlet homocline of described purging mouth 21 is directed upwards towards the edge of bottom working roll 4 respective side.

Using method of the present utility model is as follows:

As shown in Fig. 1 to Fig. 3, during work, upper plate 1 of feeding is moved near top working roll 3, and blow gun 11 is blown facing to the roll gap of top working roll 3 and backing roll 5, the bore of blow gun 25.4mm produces a crossflow, ROLLING OIL is blowed to milling train (sign) both sides, upper feed plate 1 front end air knife 6 air between air knife block 61 and lower air knife block 62 formed air outlet in blow out continuously, due to the air outlet width of air knife 6 and top working roll 3 suitable, the air draught of blowout can hold the ROLLING OIL of whereabouts, top working roll 3 surface, finally, left with lower plate 2 of feeding, eight of right both sides purge mouth 21, band facing to roll gap exit is blown, and the ROLLING OIL of attachment is blown to the direction, edge of band, finally like this reach on band, the effect of lower surface oil removing, structure is simple, easy to operate, applied widely.

When thickness of strip or change width, the gap of 2 ~ 5mm between adjustable air knife 6 and top working roll 3, reaches best to make the air outlet of air knife 6 and blows oily effect.

It is consistent with prior art that the utility model does not describe part, and therefore not to repeat here.

These are only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing the utility model description and accompanying drawing content to do; directly or indirectly be used in the technical field that other are relevant, all in like manner within scope of patent protection of the present utility model.

Claims (4)

1. a single-stand four-high rolling mill, comprise blow device, top working roll (3), bottom working roll (4) and backing roll (5), described backing roll (5) is in the top of top working roll (3), described top working roll (3) is in the top of bottom working roll (4), it is characterized in that: described blow device comprises feeds plate (1) and lower hello plate (2), the front end of feeding plate (1) on described is provided with air knife (6), the upper end of feeding plate (1) on described is provided with a blow gun (11), described blow gun (11) points to the roll gap between top working roll (3) and backing roll (5), multiple purging mouth (21) is provided with in described lower front end of feeding plate (2).

2. a kind of single-stand four-high rolling mill according to claim 1, it is characterized in that: described air knife (6) comprises air knife block (61) and lower air knife block (62), front end and lower air knife block (62) correspondence position of described upper air knife block (61) form an air outlet, the width of this air outlet is 0.5mm, and the air-out direction of described air outlet overlaps with the tangent line of top working roll (3) circular arc correspondence position; Interstice coverage between the top of described lower air knife block (62) front end and top working roll (3) is 2 ~ 5mm, and the width of the width of described air knife and top working roll (3) is suitable.

3. a kind of single-stand four-high rolling mill according to claim 1, is characterized in that: the bore scope of described blow gun (11) is 20 ~ 30mm.

4. a kind of single-stand four-high rolling mill according to claim 1, it is characterized in that: multiple described purging mouth (21) is symmetrical arranged in lower plate (2) arranged on left and right sides of feeding, and the air outlet homocline purging mouth (21) described in every side is directed upwards towards the edge of bottom working roll (4) respective side.