卷板预弯工艺的对中操作介绍精品

2021年1月29日发(作者：ogi)

卷板预弯工艺的对中操作介绍

Three bending process

1

卷板由预弯（ 压头）

、对中和卷弯三个过程组成。

1

roll

plate

by

bending

(head),

and

roll

bending

of

three

process.

2

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预弯（压头）在三棍卷板机或预弯压力机上进行。当预弯

板厚不超过

20mm

的情况下，

可采用预弯也一块钢板作 为弯

模，其厚度不应大于板厚的两倍，长度应比板略长，将弯曲

模放入辊筒中，将板料置于弯模上，压下上辊并使弯模来回

滚动使板料边缘达到所要求的 弯曲半径。同时采用弯模预弯

时，

必须控制弯曲功率不超过设备 能力

60%

，

操作时应严格

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控制上辊的压下量，以防过载损坏设备。在压力机上用模具

预弯适用于各种 板厚，用长度比板料短的通用模具，预弯时

必须分段进行，预弯两端，预弯尺寸根据工件 卷圆卷板机种

类而定。

如

20*200 0

卷板机端面预弯尺寸是

250-300

；

8*2000

卷板机端面预弯尺寸是

150-200

。

2

bending

(pressure

head)

in

three

stick

machine

or

bending

machine.

When

bending

thickness

under

the

condition of less than 20 mm, bending can be used also as

a

steel

plate

bending

die,

its

thickness

should

not

be

greater than twice the thickness, length should be slightly

longer than the board, the bending die is put into the roller,

puts

sheet

metal

bending

mold,

pressure

roller

and

the

bending

modulus

back

and

forth

rolling

sheet

edge

to

achieve the required bending radius. Using curved bending

mould

at

the

same

time,

must

control

bending

power

equipment

capacity

by

60%,

not

more

than

operation

should strictly control the roll reduction, in case of overload

damage the equipment. In presses with bending mould is

suitable for various thickness, with a general mold length

shorter

than

sheet

metal,

and

must

be

segments

when

bending, bending, bending the size according to the type of

workpiece, roll round machine. Such as 20 * 2000 rolls end

bending size is 250-300; 8 * 2000 bending roll end bending

size is 150-200.

3

对中，将预弯的板料置于卷板机上滚弯时，为防止产生扭< /p>

曲将板料对中，要使板料的纵向中心线与辊筒轴线保持平

行。对中 方法有几种：

3 on, bending sheet metal in roll on roll bending machine,

in order to prevent to produce distortion in the sheet will be

to,

to

make

the

sheet

metal

of

longitudinal

centerline

remain parallel to the roll axis. There are several ways for

the:

（

1

）

在

三辊卷板机上利用挡板使板边靠紧挡板；

(1) on the three-roller plate using baffle plate edge by tight

damper;

（

2

）

将

板料抬起使板边靠紧侧辊，然后再放平；

(2) the sheet up to make the edge will be tight side roller,

and then flat;

（

3

）

把

板料对准侧下辊的直槽；

(3)

roll

under

the

sheet

metal

on

the

side

of

the

straight

groove;

（

4

）

用

目视观察辊筒的中间位置，上辊的外形线与板边是

否平行调整对中。

(4) with the visual observation of the intermediate position

of the roller, the roller contour lines and edge parallel to the

adjustment.

4

圆柱的卷弯，

< br>将板料位置对中后，

一般采用多次进行滚弯，

调节上辊， 逐步压下上辊并来回滚动，使板料的曲率半径逐

渐减小直至达到规定的要求，在卷弯过程 中，应不断地用样

板检验弯板两端的曲率半径。卷弯半圆（瓦片）时也应卸载

< p>
后测验量其曲率。

4

cylindrical

roll

bending,

the

plate

location

for,

generally

using

multiple

times

to

roll

bending,

roll

adjustment,

pressure roller and rolling back and forth, step by step to

make

sheet

metal

curvature

radius

decreases

until

reached the requirements of regulation, in the process of

roll

bending,

should

constantly

use

template

radius

of

curvature at the ends of the test plate. Roll bending round

(tiles) should also be its curvature after unloading test.

5

矫圆工艺、圆筒卷弯焊接后会发生焊后变形，所以必须进

行矫圆。矫圆 分加载、滚圆和卸载三个步骤。先根据经验或

计算，将上辊筒调节到重要的最大矫正曲率 的位置，使板料

受弯。板料在卷板机辊筒的矫正曲率下来回滚卷

1-2

圈，着

重在滚卷焊缝区附近用卡样板检查，使整圈曲率均 匀一致，

然后在酿酒设备滚卷的同时，逐渐退回辊筒，使工件在逐渐

减少矫正混凝土输送泵载荷下多次滚卷至要求，也可用手矫

圆。圆锥面的卷弯过程与 圆柱面制作工艺相似。

5 round correction technology, drum roll bending will occur

after welding deformation after welding, so must be round

correction.

Circle

points

loaded

and

rolling

and

uninstall

three

steps.

According

to

experience

or

calculated

first,

and will roll on the adjustment to the important position of

the maximum curvature correction, make the sheet metal

bending. Blank in curvature to rectify the bending roll roller

down

to

rollback

(1-2

laps,

emphatically

in

the

roll

weld

zone near the card sample to check, make the whole circle

of

curvature

uniform,

and

then

roll

up

at

the

same

time,

gradually

returned

to

the

roller,

the

workpiece

under

the

load

gradually

reduce

correction

roll

up

to

a

request

for

many times, also can

use hand

round correction. On the

surface

of

the

conical

roll

bending

process

similar

to

cylinder production process.

6

卷板质量：卷板质量问题包括外 形缺陷、表面压伤和卷裂

三个方面。

6

roll

plate

quality:

the

quality

of

rolled

plate

problems

including

crushed

appearance

defects,

surface

and

volume split in three aspects.

7

外形缺陷，在操作中要注意以下现象：

a

矿用网片卷弯圆

柱形筒体时外形出现过弯、锥形、束腰、边缘歪斜和棱角等

现象是应及时处理，发现过弯时用大锤锤击筒体的边缘可使

直径扩展，过 弯就可以消除，卷圆时在每次调节辊筒后用样

板检查其弯曲度。

7

appearance

defects,

in

the

operation

should

pay

attention

to

the

following

phenomena:

roll

bending

of

a

cylindrical

barrel

shape

appear

when

cornering,

conical,

beam

waist,

the

edge

is

skewed,

and

the

phenomenon

such as edges and corners shall be handled in time, found

that when cornering with the edge of the sledge hammer

the

barrel

can

make

the

diameter

of

the

extension,