阅读说明：本技术 一种极薄带钢的卷取装置及方法 (Coiling device and method for ultrathin strip steel ) 是由 陶桂林 熊金乐 何伟 马红 李宗亮 侯志钢 肖锋 邱俊杰 于 2020-06-19 设计创作，主要内容包括：本发明提出一种极薄带钢的卷取装置及方法,包括卷筒和防折机构,常规卷筒即通用的普通卷筒,包括芯轴、楔形块和扇形板等机构,防折机构由金属卷板和永磁体组成,金属套筒外套于卷筒,永磁体嵌设于扇形板上,金属卷板敷设于卷筒表面,本发明消除了卷取机卷筒磨损造成的带钢内圈折印和划伤等缺陷,可以实施大张力卷取,适用范围广。(The invention provides a coiling device and a method of ultrathin strip steel, which comprises a coiling drum and an anti-folding mechanism, wherein the conventional coiling drum is a universal common coiling drum and comprises a mandrel, a wedge block, a sector plate and other mechanisms, the anti-folding mechanism comprises a metal coiled plate and a permanent magnet, a metal sleeve is sleeved outside the coiling drum, the permanent magnet is embedded on the sector plate, and the metal coiled plate is laid on the surface of the coiling drum.)

1. The utility model provides a coiling apparatus of extremely thin belted steel, includes the reel, the reel includes dabber, wedge and sector plate, the sector plate is followed dabber surface circumference is laid, and one in the sector plate is the sector plate of keeping silent, and the position that corresponds with the sector plate on the dabber is installed the wedge, wedge are located inside the sector plate, slide from top to bottom along the inner wall, drive the sector plate breathing, its characterized in that still includes and prevents the reprint mechanism, prevent that the reprint mechanism comprises metal roll board and permanent magnet, the reel is laid to the metal roll board, the permanent magnet inlays to be located on the sector plate.

2. The apparatus for coiling an extremely thin steel strip as claimed in claim 1, wherein said rolled metal sheet is formed by winding a thin metal sheet on said reel in a coiling direction with a side edge thereof being in clamping engagement with said jaw segment.

3. The coiler device for very thin steel strip according to claim 2, wherein said permanent magnets are mounted on a sector plate of said mandrel corresponding to the trailing edge of said rolled metal plate, and are arranged at intervals of an even interval in the direction of the NS pole in the axial direction of the sector plate.

4. The apparatus for winding an extremely thin strip as claimed in claim 2 or 3, wherein the metal rolled sheet has a length of unwinding 1.2 to 3 times the length of the expanded circumference of the winding drum, a width 1.1 to 1.3 times the width of the wound strip, and a thickness not greater than the thickness of the wound strip.

5. A coiling method of a coiling apparatus for an extremely thin strip as defined in claim 4, comprising the steps of:

s1) coiling the strip steel: clamping one side of a metal sheet by a jaw of a jaw sector plate, polishing the tail end and the edge smoothly, attaching the metal sheet to the surface of a winding drum through permanent magnet adsorption, tightly coating the metal sheet on the winding drum under the action of a wrapper belt, and starting a winding machine to wind strip steel;

s2) coil stripping: when the coiling is finished and the coil is to be unloaded, the jaw still keeps a clamping state, the winding drum is contracted and rotated at a low speed, the metal coil plate is naturally separated from the strip steel on the inner layer of the steel coil and is wound on the winding drum, the winding drum is expanded again after the coil is unloaded, the winding drum overcomes the adsorption magnetic force and is expanded again, and the winding drum is made to be close to the surface of the winding drum to prepare for the coiling again; after the metal coiled plate is recycled until the metal coiled plate is worn and deformed, the metal coiled plate can be manually stripped and replaced by a new product by loosening the jaw.

Technical Field

The invention belongs to the technical field of automatic coiling in cold-rolled strip steel production, and particularly relates to a coiling device and method for an extremely thin strip steel.

Background

The coiler is one of the main devices for producing strip steel, coils the strip steel into a steel coil, and is convenient to transport and store. The winding drum is a core part of the winding machine, is a columnar mandrel and generally consists of 3-4 segments. Before coiling the strip steel, the winding drum is expanded in advance; when coiling, the coiling drum keeps the expansion shape; after the coiling is finished, the coiling drum shrinks, so that the steel coil can be conveniently dismounted from the coiling drum.

The segments of the drum form a circular cylinder, which is designed to be nearly perfectly circular when expanded. In practice, however, the coupling gaps between the segments are always present and increase progressively as the use wears, making it difficult to maintain an absolute perfect circle on the drum. For thicker strip steel, the clearance has no obvious influence; however, in the case of a cold-rolled steel strip with a small thickness, the bonding gaps between the fan-shaped blocks cause defects such as creases or scratches on the inner layer of the steel strip. The ultrathin strip steel generally refers to thin-specification strip steel with the thickness of less than 2.0mm, and the coiling defect is another difficult problem in the production process of the ultrathin strip steel, and belongs to the key point of field attack and customs. Typical coiling defects in the production of very thin strip steel include buckling, cramping, etc. In the coiling process, if the coiling and cramping problems occur, the strip steel must be discarded, the yield of the strip steel is reduced, and therefore, great economic loss is caused on site. To overcome this drawback, a rubber sleeve is usually added to the reel to eliminate such drawback. However, the rubber sleeve has limited rigidity, and is liable to cause roll defects such as a tower shape and a collapsing roll. The coiling of the ultrathin strip steel puts new requirements on the coiling block.

Disclosure of Invention

The invention aims to solve the technical problems and provides a device and a method for coiling ultrathin strip steel.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a coiling apparatus of extremely thin belted steel, includes the reel, the reel includes dabber, wedge and sector plate, the sector plate is followed dabber surface circumference is laid, and one in the sector plate is the sector plate of keeping silent, and the position that corresponds with the sector plate on the dabber is installed the wedge, wedge are located inside the sector plate, slide from top to bottom along the inner wall, drive the sector plate breathing, its characterized in that still includes and prevents the reprint mechanism, prevent that the reprint mechanism comprises metal roll board and permanent magnet, the reel is laid to the metal roll board, the permanent magnet inlays and locates the sector plate.

According to the scheme, the metal rolling plate is formed by winding the metal sheet on the winding drum along the winding direction in a clamping connection mode through one side edge of the metal sheet and the jaw sector plate.

According to the scheme, the permanent magnets are arranged on the sector plates, corresponding to the tail edges of the metal rolling plates, on the winding drum, and the permanent magnets are alternately and uniformly arranged at intervals along the axial direction NS poles of the sector plates.

According to the scheme, the expansion length of the metal rolling plate is 1.2-3 times of the expansion circumferential length of the winding drum, the width of the metal rolling plate is 1.1-1.3 times of the width of the coiled strip steel, and the thickness of the metal rolling plate is not more than the thickness of the coiled strip steel.

A method for coiling an extremely thin strip steel is characterized by comprising the following steps:

s1) coiling the strip steel: clamping one side of a metal sheet by a jaw of a jaw sector plate, polishing the tail end and the edge smoothly, attaching the metal sheet to the surface of a winding drum through permanent magnet adsorption, tightly coating the metal sheet on the winding drum under the action of a wrapper belt, and starting a winding machine to wind strip steel;

s2) coil stripping: when the coiling is finished and the coil is to be unloaded, the jaw still keeps a clamping state, the winding drum is contracted and rotated at a low speed, the metal coil plate is naturally separated from the strip steel on the inner layer of the steel coil and is wound on the winding drum, the winding drum is expanded again after the coil is unloaded, the winding drum overcomes the adsorption magnetic force and is expanded again, and the winding drum is made to be close to the surface of the winding drum to prepare for the coiling again; after the metal coiled plate is recycled until the metal coiled plate is worn and deformed, the metal coiled plate can be manually stripped and replaced by a new product by loosening the jaw.

The invention has the beneficial effects that: the device and the method for coiling the ultrathin strip steel eliminate the defects of crease mark, scratch and the like of the inner ring of the strip steel caused by the abrasion of a coiling block of a coiler, and are suitable for the production of the ultrathin strip steel; the invention fully utilizes the existing mechanism and parts of the coiling machine, has small modification amount and higher economic benefit; the invention has wide popularization value in the heat treatment and coil splitting production lines of the extremely thin strip steel.

Drawings

FIG. 1 is a cross-sectional view of one embodiment of the present invention.

Fig. 2 is a schematic view of the installation of a permanent magnet according to one embodiment of the present invention.

Detailed Description

For a better understanding of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings and examples.

As shown in figures 1-2, the coiling device of the ultrathin strip steel comprises a coiling drum, wherein the coiling drum comprises a mandrel 1, wedge blocks 2 and sector plates 3, the sector plates are arranged along the circumference of the outer surface of the mandrel, one of the sector plates is a jaw sector plate, the wedge blocks are arranged at the positions, corresponding to the sector plates, on the mandrel, the wedge blocks are positioned in the sector plates and slide up and down along the inner wall to drive the sector plates to expand and contract, the coiling device also comprises an anti-folding mechanism, the anti-folding mechanism consists of a metal rolling plate 4 and a permanent magnet 5, the metal rolling plate is arranged on the coiling drum, and the permanent magnet is embedded on the sector plates.

The metal coiled plate is formed by clamping and connecting one side edge of a metal sheet with a jaw sector plate and winding the metal coiled plate on a winding drum along the coiling direction. The metal coil plate eliminates the influence of the combination gap on the coiling of the band steel inner ring, has large rigidity and smaller deformation under extrusion, can realize large-tension coiling, eliminates the risk of coil defects such as tower shape, coil collapse and the like, and has wide application range.

Permanent magnets are arranged on the sector plates corresponding to the tail edges of the metal rolled plates on the winding drum, the permanent magnets are alternately and uniformly arranged at intervals along the axial direction NS poles of the sector plates, certain adsorption force is generated on the inner ring metal sheet of the metal rolled plate, and the influence on the rigidity of the winding drum is small. The permanent magnet can effectively suck the metal coiled plate, the winding drum does not loosen or swing in the idling process, but the magnetic force is not too large, so that the metal coiled plate can be conveniently stripped and replaced.

The expansion length of the metal coil is 1.2-3 times of the expansion circumferential length of the winding drum, the width of the metal coil is 1.1-1.3 times of the width of the coiled strip steel, and the thickness of the metal coil is not more than the thickness of the coiled strip steel.

The method for coiling the ultrathin strip steel by adopting the coiling device comprises the following steps:

s1) first preparation: one side of the metal coil plate is clamped by a jaw, the tail end and the edge are polished smoothly, the metal coil plate is attached to the surface of the winding drum through permanent magnet adsorption, and is tightly coated on the winding drum under the action of a wrapper belt;

s2) coiling process: the process of coiling the strip steel is the same as the normal coiling process;

s3) coil stripping and preparing again: when the coiling is finished and the coil is to be unloaded, the jaw still keeps a clamping state, the winding drum is contracted and rotates at a low speed, the metal coil plate is naturally separated from the strip steel on the inner layer of the steel coil and is wound on the winding drum, and then the coil is normally unloaded; and after the coil is unloaded, the winding drum expands again. Because the number of the coating layers of the metal coiled plate is less, the winding drum can overcome the adsorption magnetic force and expand again, and the winding drum is tightly attached to the surface of the winding drum to prepare for recoiling; after the metal coiled plate is recycled until the metal coiled plate is worn and deformed, the metal coiled plate can be manually stripped and replaced by a new product by loosening the jaw.