CN203400956U - High centering device of coil of strip material loading dolly - Google Patents

Abstract

The utility model discloses a coil of strip material loading dolly height centering device belongs to coil of strip finish machining control technical field. The device comprises a hydraulic cylinder, an upper limit switch, a lower limit switch, a photoelectric switch and a magnetic scale; the utility model discloses a mechanical position and sensor position geometry construct through the operation automatically obtain the dolly height to the middle distance, avoided the coil of strip position that manual operation adjustment caused to be improper, the serious accident that then causes mechanical collision or drop; meanwhile, the position control precision of the feeding trolley is ensured, and the feeding speed of the leveling line is improved.

Description

A kind of coil of strip feeding cart height centering device

Technical field

The utility model belongs to roll coil of strip fine finishining control technology field, particularly a kind of coil of strip feeding cart height centering device.

Background technology

With steel fine finishining field, be more and more subject to the attention of Ge great steel mill, improve value-added content of product, meet different clients' requirement.Flat line is exactly that line is produced in a wherein product fine finishining, coil of strip material loading becomes the important step of the smooth production capacity of restriction, and coil of strip material loading adopts manually control mostly at present, by manual control coil of strip feeding cart, carry out lifting, and manually mandrel of uncoiler is highly aimed in adjustment, after coil of strip center is consistent with mandrel center, more manually controls coil of strip feeding cart and advance, coil of strip is packed in mandrel.This process quite tests operative employee's operation technique, and manually adjusts highly completely and rely on and observe, and slightly error will cause the production accident that the collision of coil of strip and mandrel causes coil of strip to drop.Once there is above-mentioned situation, will have a strong impact on production.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of coil of strip feeding cart height centering device, has solved the artificial feeding cart height of adjusting in prior art and has caused not technical problem accurately.

For solving the problems of the technologies described above, the utility model provides a kind of coil of strip feeding cart height centering device, comprises hydraulic cylinder, limes superiors switch, limit inferior switch, optoelectronic switch and magnetic scale; Wherein, described hydraulic cylinder is fixed on feeding cart, described magnetic scale is in described hydraulic cylinder, described limes superiors switch is fixed on the limes superiors position of the saddle of described feeding cart, described limit inferior switch is fixed on the limit inferior position of the saddle of described feeding cart, and described optoelectronic switch is fixed on a support of described feeding cart.

Further, described optoelectronic switch at the height of fixing described support is: in described limes superiors position, add that minimum coil of strip radius to described limes superiors position adds between minimum coil of strip diameter.

The coil of strip feeding cart height centering device that the utility model provides, by forming through computing for how much of mechanical location and sensing station, automatically draw dolly height centering distance, the coil of strip position of having avoided manual operation adjustment to cause is improper, the mechanical collision then causing or the major accident dropping; Guarantee the position control accuracy of feeding cart simultaneously, improved the material loading speed of flat line.

Accompanying drawing explanation

The coil of strip feeding cart height centering apparatus structure schematic diagram that Fig. 1 provides for the utility model embodiment;

The coil of strip feeding cart height centering method flow block diagram that Fig. 2 provides for the utility model embodiment;

Reference numeral:

1, coil of strip, 2, feeding cart, 3, hydraulic cylinder, 4, the reel of uncoiler, 5, optoelectronic switch, 6, limes superiors switch, 7, limit inferior switch, 8, the reel center line of uncoiler, 9, optoelectronic switch exposure distance again, 10, coil of strip diameter, 11, the bevel angle of saddle, 12, optoelectronic switch is to the centre distance of uncoiler, and 13, saddle descending stroke distance, 14, limes superiors position and the uncoiler centre distance of saddle.

The specific embodiment

Referring to Fig. 1, a kind of coil of strip feeding cart height centering device that the utility model embodiment provides, comprises hydraulic cylinder 3, limes superiors switch 6, limit inferior switch 7, optoelectronic switch 5 and magnetic scale, wherein, hydraulic cylinder is fixed on feeding cart 2, for driving the lifting of feeding cart 2, magnetic scale is in hydraulic cylinder 3, limes superiors switch 6 is fixed on the limes superiors position of the saddle of feeding cart 2, limit inferior switch 7 is fixed on the limit inferior position of the saddle of feeding cart 2, optoelectronic switch 5 is on a fixed support of feeding cart, optoelectronic switch at support bracket fastened height is: limes superiors position adds that minimum coil of strip radius and limes superiors position add between minimum coil of strip diameter, wherein, minimum coil of strip radius and minimum coil of strip diameter are for setting value according to actual needs, in the utility model embodiment, magnetic scale model is MTSRHM1705MR021A01, for dolly lifting travel, measure, the model of limes superiors switch and limit inferior switch is TURCK Bi15-CP40-AP62, for limes superiors position and the limit inferior position probing of the saddle of feeding cart 2, optoelectronic switch model is: Banner MINI-BEAM SM31E/SM31R, and for the detection at short transverse coil of strip edge.

Participate in Fig. 2, the coil of strip feeding cart height centering device course of work that the present embodiment provides is as follows:

Step 101: will treat that smooth coil of strip is put on feeding cart, and when feeding cart is in the limes superiors position of saddle of feeding cart, now the optoelectronic switch on the fixed support of feeding cart is sheltered from by coil of strip, the magnetic scale recording in hydraulic cylinder 3 is now measured numerical value, obtain the first magnetic scale numerical value, treat that smooth coil of strip 1 declines by hydraulic cylinder 3 on feeding cart 2, until optoelectronic switch 5 exposes again, the magnetic scale recording in hydraulic cylinder 3 is now measured numerical value, obtain the first magnetic scale numerical value, according to the first magnetic scale numerical value and the second magnetic scale numerical value, calculate optoelectronic switch exposure distance 9 again,

Step 102: by survey tool, calculate optoelectronic switch to the bevel angle 11 of the centre distance 12 of uncoiler, the limes superiors position of saddle and uncoiler centre distance 14 and saddle respectively;

Step 103: the bevel angle 11 according to optoelectronic switch again exposure distance 9, optoelectronic switch to the centre distance 12 of uncoiler, the limes superiors position of saddle and uncoiler centre distance 14 and saddle, by geometry of machinery relational calculus, draw coil of strip diameter 10, coil of strip diameter draws by following formula (1):

$D=\frac{2\cos \mathrm{\θ}(B-N+A)}{1+\cos \mathrm{\θ}}---\left(1\right)$

In formula (1), D is coil of strip diameter, and unit is mm; θ is the bevel angle of saddle, and unit is degree; B be optoelectronic switch to the centre distance of uncoiler, unit is mm, the limes superiors position that N is saddle and uncoiler centre distance, unit is mm; A is optoelectronic switch exposure distance again, and unit is mm;

Step 104: the flat line material loading threshold value of coil of strip diameter and setting is judged, if coil of strip diameter is greater than flat line material loading threshold value, stop adjusting, carry out and finish, otherwise, perform step 105;

Step 105: according to the bevel angle 11 of the centre distance 12 of coil of strip diameter 10, optoelectronic switch and uncoiler and saddle, calculate saddle descending stroke distance 13, the computing formula of saddle descending stroke distance is suc as formula described in (2):

$C=\frac{\mathrm{<figure-callout\; id="2"\; label="D"\; filenames="HDA00003487117800011.png"\; state="\{\{state\}\}">D</figure-callout>}}{2\cos \mathrm{\&theta;}}---\left(2\right)$

In formula, C is saddle descending stroke distance, and unit is mm; N is limes superiors position and the uncoiler centre distance of saddle, and unit is mm; D is coil of strip diameter, and unit is mm; θ is the bevel angle of saddle, and unit is degree;

Step 106: control feeding cart according to saddle descending stroke distance and continue to decline, after dropping distance arrives, feeding cart is advanced coil of strip is packed in the mandrel of uncoiler, dolly height centering is controlled and finished.

Wherein,

In the utility model embodiment, when equipment is installed, the limes superiors position of saddle and uncoiler centre distance N are 570mm, and optoelectronic switch is 1470mm to the centre distance B of uncoiler, and the bevel angle of saddle processing is 10 degree.

First feeding cart is in the limes superiors position of the saddle of feeding cart, treats that smooth coil of strip is put on trolley saddle, and now photoelectricity switch is blocked, and the first magnetic scale numerical value recording in hydraulic cylinder is now 1700mm; By dolly hydraulic cylinder, controlling coil of strip declines, until optoelectronic switch exposure, the the second magnetic scale numerical value again recording in hydraulic cylinder is now 563.7mm, and according to the first magnetic scale numerical value and the second magnetic scale numerical value, calculating optoelectronic switch exposure distance A is 1700mm-563.7mm=1136.3mm.

According to formula (1), calculating coil of strip diameter is: and 2*cos10*(1470-570+1136.3) }/(1+cos10)=2020.7mm.

Judge now whether coil of strip meets flat line material loading threshold value, in the utility model embodiment, the flat line material loading threshold value of setting, for being more than or equal to 1000mm, is less than or equal to 2150mm again.Due to 1000 < D=2020.7 < 2150, so coil of strip diameter meets material loading requirement.

Next according to coil diameter D and formula (2), continue to calculate saddle descending stroke distance C=570+2020.7/ (2*cos10)=1595.9mm.

According to the above-mentioned saddle descending stroke distance calculating, control feeding cart and continue to decline, after dropping distance arrives 1595.9mm, get off and stop declining.Feeding cart is advanced coil of strip is packed in the mandrel of uncoiler again, dolly height centering is controlled and is finished.

A kind of coil of strip feeding cart height centering device that the utility model embodiment provides, in smooth production line coil of strip material loading side, by forming through computing for how much of mechanical location and sensing station, automatically draw dolly height centering distance, the coil of strip position of having avoided manual operation adjustment to cause is improper, the mechanical collision then causing or the major accident dropping; Guarantee the position control accuracy of feeding cart simultaneously, improved the material loading speed of flat line.

It should be noted last that, the above specific embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to example, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.

Claims (2)

1. a coil of strip feeding cart height centering device, is characterized in that, comprises hydraulic cylinder (3), limes superiors switch (6), limit inferior switch (7), optoelectronic switch (5) and magnetic scale; Wherein, described hydraulic cylinder (3) is fixed on feeding cart (2), described magnetic scale is in described hydraulic cylinder (3), described limes superiors switch (6) is fixed on the limes superiors position of the saddle of described feeding cart (2), described limit inferior switch (7) is fixed on the limit inferior position of the saddle of described feeding cart (2), and described optoelectronic switch (5) is fixed on a support of described feeding cart.

2. centralising device according to claim 1, is characterized in that, the height that described optoelectronic switch (5) is fixed on support is: described limes superiors position adds that minimum coil of strip radius and described limes superiors position add between minimum coil of strip diameter.

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