CN203155757U - Swing arm type automatic scrolling centering structure - Google Patents

Abstract

The utility model discloses a swing arm type automatic scrolling centering structure, which comprises a pair of swing arms, wherein the swing arms are connected with each other through shafts; bearing pedestals of two supporting shafts are fixed on a bracket; a swing rod which is perpendicular to the swing arms is fixed between the shafts; a swing oil cylinder pushes the swing rod to rotate to drive the shafts to rotate, so that the swing arms are driven to swing and fall down; and four groups of correlation type photoelectric switches and a group of laser ranging sensors are arranged on each swing arm, so that scrolling heights and scrolling widths of steel scrolls can be centered at the same time, and an automatic scrolling function of the steel scrolls is realized. The swing arm type automatic scrolling centering structure has the characteristics of simple structure, low cost, high precision, high reliability and the like.

Description

A kind of swing arm automatic coiling centering structure

Technical field

The utility model relates to volume dolly automatic coiling device field on the cold rolling unit production line coil of strip, is specifically related to a kind of swing arm automatic coiling centering structure.

Background technology

The automatic coiling device is widely used in the reversable cold-rolling machine group, and full continuous cold rolling unit production line is a kind of embodiment of unit automation level, can reduce cost of labor, thus in the shortening volume time be widely used.

The realization of automatic coiling is contour by coil of strip height center and reel height center, and coil of strip width center overlaps to realize with the machine group switching centre, the height that just will realize coil of strip in and width centering.Traditional automatic coiling height centering is measured the coil of strip external diameter to sensor distance by adopting laser range sensor, go up the distance of volume car crane lifting when contour by calculating coil of strip centre-height and reel of uncoiler, the oil cylinder by the band displacement transducer promotes coil of strip and reaches desired height.Width centering adopts the correlation optoelectronic switch according to the coil of strip width of input, calculates the distance that dolly will be walked coil of strip width center machine group switching centre.This method height in and width centering separately carry out, height centering needs hoist cylinder band displacement transducer, cost is than higher, and the coil of strip external diameter needs input in advance, and input value and actual value have deviation, so accuracy of alignment is not high.Width centering sensor is positioned on the ground, and sensor is broken easily.

The utility model content

In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of swing arm automatic coiling centering structure, by being loaded on four groups of optoelectronic switches and the one group of laser range sensor in the swing arm, lick height centering and width centering in the journey on realizing simultaneously, have simple in structure, cost is low, precision height, high reliability features.

In order to achieve the above object, the technical scheme taked of the utility model is:

A kind of swing arm automatic coiling centering structure, comprise a pair of swing arm 1, swing arm 1 is linked together by axle 2, the bearing block 3 of two back shafts 2 is fixed on the support 6, axle 2 center fixed have the fork 4 with 1 one-tenth 90 ° of swing arms, and fork 4 is connected with oscillating oil cylinder 5, and oscillating oil cylinder 5 promotes fork 4 half-twists, drive axle 2 rotations, put and fall thereby drive swing arm 1.

Described swing arm 1 front end is the T-shaped structure, vertical direction is four groups of correlation optoelectronic switches of symmetric arrangement centered by the T-shaped center, second group of optoelectronic switch 8 and the 3rd group of optoelectronic switch 9 distances are less than the coil of strip internal diameter, and first group of optoelectronic switch 7 and the 4th group of optoelectronic switch 10 distances are greater than the coil of strip internal diameter.

Horizontal direction is arranged one group of laser range sensor 11 in the described swing arm 1.

Described support 6 is a welding structural element.

The utility model adopts the swing arm structure, and height centering and the width centering that can realize coil of strip simultaneously are in conjunction with the motion of last volume dolly, can with the coil of strip automatic coiling to the reel of uncoiler in the heart, realize automatic coiling, have simple in structure, cost is low, precision height, characteristics such as reliability height.

Description of drawings

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

Fig. 2 is the vertical view of Fig. 1 of the present utility model.

Fig. 3 is height centering schematic diagram.

Fig. 4 is width centering schematic diagram.

The specific embodiment

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

See figures.1.and.2, a kind of swing arm automatic coiling centering structure, comprise a pair of swing arm 1, swing arm 1 is linked together by axle 2, and the bearing block 3 of two back shafts 2 is fixed on the support 6, and axle 2 center fixed have the fork 4 with 1 one-tenth 90 ° of swing arms, fork 4 is connected with oscillating oil cylinder 5, oscillating oil cylinder 5 promotes forks 4 half-twists, drives axle 2 rotations, has put and falls thereby drive swing arm 1.

With reference to Fig. 1 and Fig. 3, described swing arm 1 front end is the T-shaped structure, vertical direction is four groups of correlation optoelectronic switches of symmetric arrangement centered by the T-shaped center, second group of optoelectronic switch 8 and the 3rd group of optoelectronic switch 9 distances are slightly less than the coil of strip internal diameter, and first group of optoelectronic switch 7 and the 4th group of optoelectronic switch 10 distances are slightly larger than the coil of strip internal diameter.

With reference to Fig. 2, horizontal direction is arranged one group of laser range sensor 11 in the described swing arm 1.

Described support 6 is a welding structural element.

Operation principle of the present utility model is:

Centralising device is realized by detecting elements such as optoelectronic switch and displacement transducers.

With reference to Fig. 1, Fig. 2 and Fig. 3, height centering is to realize by four groups of correlation optoelectronic switches that are installed in the swing arm 1, when after last volume car is got volume from saddle, moving to the centralising device center, swing arm 1 falls, swing arm 1 is the T-shaped structure, vertical direction is four groups of correlation optoelectronic switches of symmetric arrangement centered by the T-shaped center, second group of optoelectronic switch 8 and the 3rd group of optoelectronic switch 9 distances are slightly less than the coil of strip internal diameter, and first group of optoelectronic switch 7 and the 4th group of optoelectronic switch 10 distances are slightly larger than the coil of strip internal diameter.

When coil of strip is in lowest order, four groups of optoelectronic switches are all logical, coil of strip rises, rising along with coil of strip, optoelectronic switch is blocked by coil of strip respectively, close until first group of optoelectronic switch 7 and the 4th group of optoelectronic switch 10, second group of optoelectronic switch 8 and the 3rd group of optoelectronic switch 9 close logical, just be in state shown in Figure 3, this moment, the coil of strip center overlapped with swing arm 1 T-shaped center, as long as guarantee when installing that swing arm 1 T-shaped center and reel center are contour, just realized that coil of strip center and reel of uncoiler are contour, realized height centering.

With reference to Fig. 2 and Fig. 4,2 laser range sensors are housed respectively in the swing arm 1, when swing arm 1 is accommodated, measure respectively displacement transducer to the coil of strip both ends of the surface apart from a and b, coil of strip center and centralising device center offset are:

$c=\frac{a-\mathrm{<figure-callout\; id="2"\; label="b"\; filenames="HDA00002893735600011.png,HDA00002893735600012.png"\; state="\{\{state\}\}">b</figure-callout>}}{2}$

The centralising device center is definite value K to unit centre distance, on to roll up the distance that car will walk coil of strip center machine group switching centre be K+c, just can control the carriage walking distance by last volume car encoder, realize the width centering of coil of strip.

Claims (4)

1. swing arm automatic coiling centering structure, comprise a pair of swing arm (1), it is characterized in that: swing arm (1) is linked together by axle (2), the bearing block (3) of two back shafts (2) is fixed on the support (6), axle (2) center fixed has and becomes 90 ° fork (4) with swing arm (1), and fork (4) is connected with oscillating oil cylinder (5), oscillating oil cylinder (5) promotion fork (4) half-twist, drive axle (2) rotation, put and fall thereby drive swing arm (1).

2. a kind of swing arm automatic coiling centering structure according to claim 1, it is characterized in that: described swing arm (1) front end is the T-shaped structure, vertical direction is four groups of correlation optoelectronic switches of symmetric arrangement centered by the T-shaped center, second group of optoelectronic switch (8) and the 3rd group of optoelectronic switch (9) distance are less than the coil of strip internal diameter, and first group of optoelectronic switch (7) and the 4th group of optoelectronic switch (10) distance are greater than the coil of strip internal diameter.

3. a kind of swing arm automatic coiling centering structure according to claim 1 is characterized in that: described swing arm (1) is gone up horizontal direction and is arranged one group of laser range sensor (11).

4. a kind of swing arm automatic coiling centering structure according to claim 1, it is characterized in that: described support (6) is a welding structural element.

Images