JP3643194B2 - Degreasing equipment for re- pickling steel strip - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a degreasing device for removing rust preventive oil applied to a steel strip when the pickled steel strip is sent to a pickling device for re-acid pickling.
[0002]
[Prior art]
Pickling is performed to remove the oxide scale layer formed on the surface of the steel strip. After pickling, rust preventive oil is applied to the front and back surfaces of the steel strip for rust prevention. Steel strip that has been pickled will be pickled again if the descaling is inadequate or rust is generated while it is stuck in the warehouse. Therefore, when it is passed through the pickling tank, there arises a problem that the inside of the tank becomes dirty with rust preventive oil. Therefore, conventionally, on the outlet side of the uncoiler leveler of the continuous pickling machine, the re-pickling material is sandwiched from above and below by an oil adsorption mat, and an aqueous solution with a surfactant added to each mat is supplied to wipe off the rust preventive oil on the surface. It was. Specifically, the oil adsorption mat is sandwiched between a scaffolding material wrapped with an oil adsorption mat on a roller table, the band steel tip is placed on the oil adsorption mat, and the oil adsorption mat is further wound thereon. The attached scaffolding material was placed and both ends of the upper and lower scaffolding materials were fastened with a vise.
[0003]
[Problems to be solved by the invention]
The above-described sandwiching operation using the oil adsorption mat is troublesome and has poor workability. In particular, when the steel strip tip is placed on the oil-absorbing mat, if the steel strip tip is forward and downward, the steel strip tip must be lifted with a pearl inserted or a mambo inserted, which is laborious. Workability becomes worse even further. Moreover, there is a potential danger that the steel strip tip will spring up during the above operation.
[0004]
The first object of the present invention is to provide a degreasing device with good workability for removing rust-preventing oil on the surface of the steel strip, and further to eliminate dangerous work when lifting the front end of the steel strip. It is a second object to provide a degreasing device that can be used.
[0005]
[Means for solving problems]
1st invention which achieves the 1st objective is used when sending the steel strip which applied antirust oil to the pickling apparatus for re-acid pickling after pickling , and the antirust oil which adheres to the steel strip is used. The degreasing apparatus for wiping is composed of a pair of upper and lower plates wound with an oil adsorption mat, the upper plate is supported so as to be movable up and down, and an actuating device for moving the upper plate up and down is provided.
[0006]
In the present invention, the anti-rust oil on the surface of the steel strip is wiped by placing the top of the steel strip on the lower plate with the upper plate lifted, then lowering the upper plate and winding it on the upper and lower plates. This is done by sandwiching the steel strip with an oil adsorption mat.
As an operating device used by this invention, a hydraulic or pneumatic cylinder, a jack, etc. can be illustrated, for example.
[0007]
When it is not necessary to use this apparatus during normal pickling, it is desirable to keep the lower plate from contacting the steel strip. For this purpose, for example, the lower plate may be removed or lowered to a position where it does not come into contact with the steel strip so that it can be retracted.
Accordingly, the second invention is characterized in that, in the first invention, at least the lower plate can be attached and detached, and the third invention can move the lower plate up and down, and is the same as the first invention. The second actuating device, which is the actuating device, can be moved up and down. In the third aspect of the invention, it is desirable to cover the oil adsorption mat so that the scale does not fall from the steel strip running on the lowered plate and contaminate the oil adsorption mat.
[0008]
Accordingly, a fourth invention is characterized in that, in the third invention, a cover is placed on the oil adsorption mat of the lowered plate.
The fifth invention is characterized in that, in the first to fourth inventions, the upper and lower plates are arranged to be inclined with respect to the traveling direction of the steel strip.
According to the present invention, even if the mats have the same width, the mat contact length in the band steel traveling direction is increased by inclining the mat, and the oil wiping effect is improved.
[0009]
A sixth invention that achieves the second object is characterized in that, in the first and fifth inventions, a lifter is provided on the entry side of the degreasing device for lifting the tip of the steel strip. This lifter is preferably composed of a roller supported so as to be movable up and down, and a lifting device that lifts and lowers the roller. Examples of the lifting device include a hydraulic or pneumatic cylinder and a jack.
[0010]
According to the present invention, the band steel tip is lifted by the lifter, and the work of lifting the band steel tip is omitted.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a layout of a degreasing apparatus A arranged on the outlet side of an uncoiler leveler, and is arranged obliquely with an appropriate angle θ with a direction perpendicular to the traveling direction of the steel strip (arrow direction), A lifter C made of a roller is arranged on the roller table B on the entry side.
[0012]
As shown in FIGS. 2 and 3, the degreasing apparatus A is stretched over a gate-type stand 1 installed on both sides of the table B and a girder 1 a of both stands 1 so that the oil adsorbing mat 2 can be put in and out. The lower plate 3 wound around, the brackets 5a and 5b supported by the air cylinder 4 which is attached to the girders 1b at the upper end of each stand, and the brackets 5a and 5b are detachably attached to the oil adsorption mat. 2 and the upper plate 6 wound with 2 and will be described in detail below.
[0013]
As shown in FIG. 4, the lower plate 3 is fitted with a perforated hose 8 connected to a pump (not shown) in a long groove 7 formed in the center of the upper surface from one end to the other end, and is wound around the hose 8. The oil adsorbing mat 2 is stretched over and fixed by a presser band 11 detachably fastened by clips 9 at both ends. And both ends have flat grooves 12.
[0014]
The lower plate 3 is inserted on the beam of the stand 1 (the left side stand in FIG. 2) of the other end from the beam of the stand 1 on the one side (the right side stand in FIG. 2), and is spanned over both beams. In order to fix the horizontally mounted lower plate 3, the left stand 1 shown in FIG. 2 has a metal fitting 13 fixed to the beam 1a with a certain gap between the beam 1a. Yes. On the other hand, the stand 1 on the right side has a metal fitting 14 provided with a handle 16 and a pin 15 for fixing the metal fitting 14 to the beam 1a.
[0015]
When the lower plate 3 is attached, the lower plate 3 is inserted horizontally from the top of the stand 1 on the right side of FIG. 2 and one end thereof is hung on the top of the left stand 1 so that a gap between the metal fitting 13 and the cross 1a. The flat groove 12 is pushed in as much as possible so that one end where the flat groove 12 is formed enters, that is, the brace 13 is inserted into the flat groove. After that, the handle 16 is gripped and hooked so that the metal fitting 14 is fitted into the flat groove 12 from the top of the right stand 1, and after the abutting plate 17 is applied, the pin 15 is inserted into the cross 1a. Fasten.
[0016]
The upper plate 6 is slightly longer than the lower plate 3 and has the same structure as the lower plate 3 except that the perforated hose 8 is mounted in a long groove formed at the center of the lower surface and does not have flat grooves at both ends. Yes.
In the left stand 1 shown in FIG. 2 for fixing the upper plate 6, a receiving metal 18 is fixed to the bracket 5 a, and one end of the upper plate 6 is inserted between the bracket 5 a and the receiving metal 18. ing. On the other hand, the stand 1 on the right side has a U-shaped hanging bracket 22 with a handle 21 for holding the upper plate 6 on the bracket 5b, and a pin 23 for fixing the hanging bracket 22 to the bracket 5b.
[0017]
When attaching the upper plate 6, the upper plate 6 is inserted horizontally from the stand 1 on the right side of FIG. 2, and one end of the upper plate 6 is pushed between the bracket 5 a and the metal fitting 18 to the limit. Thereafter, the other end of the upper plate is pressed against the bracket 5b from below, and then the handle 21 is grasped and the hook 22 is pushed in so that the other end of the upper plate is held by the bracket 5b.
[0018]
The lifter C includes a roller 26 and an air cylinder (not shown) that supports the roller 26 at both ends, and the roller 26 can be moved up and down from the roller table B by the air cylinder.
This apparatus is configured as described above, and the degreasing apparatus A in which the steel strip is conveyed by the roller table B for re-acid pickling and the tip of the apparatus exceeds the lifter C, the lifter C lifts the upper plate 6 up. Is placed on an oil adsorption mat wound around the lower plate 3. After the end of the steel strip is placed on the oil adsorption mat, the conveyance by the roller table B is temporarily stopped, and then the switching valve (not shown) of the air cylinder 4 is switched to lower the upper plate 6. Then, the steel strip tips are sandwiched between the oil adsorbing mats 2 of the upper and lower plates 3 and 6 and pressed. At the same time, the roller 26 of the lifter C is lowered below the roller table B. Thereafter, the steel strip is transported by the roller table B while supplying the aqueous solution to which the surfactant is added to the perforated hoses 8 of the upper and lower plates 3 and 6, and the strip steel surface is wiped with oil by the detaching device A.
[0019]
In FIG. 3, 28 is a protector for suppressing the bounce of the steel strip tip, and 29 is a guide for suppressing the bounce of the steel strip tail.
[0020]
【The invention's effect】
The degreasing device according to claim 1 is configured such that, of the upper and lower plates around which the oil adsorption mat is wound, the upper plate is moved up and down by the actuating device, and the upper plate is lowered so that the band steel is sandwiched. It can be performed automatically and does not require a conventional fastening operation with a vise, improving workability.
[0021]
According to the degreasing apparatus of the second aspect, the lower plate can be removed when unnecessary.
According to the degreasing apparatus of the third aspect, when not required, the lower plate can be lowered so as not to contact the steel strip, and there is no need to remove the lower plate.
According to the degreasing apparatus of the fourth aspect, the oil adsorbing mat is not soiled by the scale falling from the steel strip by covering the cover.
[0022]
If the plate is inclined and disposed as in the degreasing device according to claim 5, the contact length of the oil adsorbing mat to the steel strip can be substantially increased, and the oil wiping effect can be improved.
If a lifter such as the degreasing device according to claim 6 is provided, the work of lifting the front and lower end of the steel strip becomes unnecessary, the workability is further improved, and the dangerous work due to the repelling of the front end of the steel strip is eliminated. Is done.
[Brief description of the drawings]
FIG. 1 is a diagram showing a layout of the present invention. FIG. 2 is a cross-sectional view of a degreasing apparatus according to the present invention. FIG. 3 is a side view of a degreasing apparatus according to the present invention. ]
A ... Degreasing device B ... Roller table C ... Lifter 1 ... Stand 1a, 1b ... Girder 2 ... Oil adsorption mat 3 ... Lower plate 4 ... Air cylinder 5a, 5b ... Bracket 6 ... Upper part Plate 7 ··· Long groove 8 · · Hole hose 9 · · Clip 11 · · Presser band 12 · · Flat groove 13 · 14 · · Brackets 15 and 23 · · Pins 16, 21 · · Handle 17 · · · Plate 18 ··· Bracket 22 ·· Hanger 26 · · Roller 28 · · Protector 29 · · Guide

Claims (6)

After pickling , it is used when feeding steel strip coated with rust-preventive oil to the pickling device for re-acid picking. A degreasing apparatus for re-acid picking steel strip, comprising a pair of plates, wherein the upper plate is supported so as to be movable up and down, and an actuating device for raising and lowering the upper plate is provided. The degreasing apparatus for re-acid picking strip steel according to claim 1, wherein at least a lower plate of the upper and lower plates is removable. The degreasing device for re-acid picking strip steel according to claim 1, wherein the lower plate can be moved up and down. 4. The degreasing device for re-acid picking steel strip according to claim 3, wherein the lowered plate is covered with a cover. The degreasing apparatus for re-acid picking steel strip according to any one of claims 1 to 4, wherein the upper and lower plates are arranged to be inclined with respect to the traveling direction of the steel strip. The degreasing device for re-acid picking steel strip according to any one of claims 1 to 5, wherein a lifter for lifting the steel strip tip is provided on the entry side.

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