CN201659172U - Scratching defect detection marking plate for cold-rolled plate - Google Patents
Scratching defect detection marking plate for cold-rolled plate Download PDFInfo
- Publication number
- CN201659172U CN201659172U CN2010201442035U CN201020144203U CN201659172U CN 201659172 U CN201659172 U CN 201659172U CN 2010201442035 U CN2010201442035 U CN 2010201442035U CN 201020144203 U CN201020144203 U CN 201020144203U CN 201659172 U CN201659172 U CN 201659172U
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- plate
- cold
- marking plate
- thin plate
- defect detection
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Abstract
The utility model provides a scratching defect detection marking plate for a cold-rolled plate, which is a rectangular plastic thin plate. An inwards-concave circular arc is arranged at one end of the rectangular thin plate, and a narrow notch is arranged along the center line of the rectangular thin plate. When in use, the circular arc end of the marking plate is clamped on a drum shaft head, a spraying agent is aligned with the narrow notch of the marking plate to carry out spraying, and 4 white spraying lines are left on the end face of a steel coil; the changing of the white lines is observed through the controlling of the uncoiling speed and the reducing of the coil diameter; when the white lines are twisted and deformed, a machine set stops running, and the tension of the previous procedure is adjusted according to measuring results, so as to avoid scratching defects, reduce the quantity of scrap cold-rolled plates, and increase the finished product rate as well as the quality qualification rate. As for a large-sized cold-rolling factory, the scratching defect detection marking plate can help save nearly 2,000,000 Yuan each year.
Description
Technical field
The utility model belongs to steel plate and detects utensil, and the scratch defect that produces when particularly a kind of cold-reduced sheet batches detects used marking plate.
Background technology
In cold rolling traditional cold rolling-cover annealing-smooth-shear in the production technology, because the unit group is more, so the scratch defect that produces in the coiling process is also many, particularly the smooth unit of single operation embody particularly evident.The main cause that produces scratch defect causes owing to tension force is uneven, the tension force inequality that produces when last operation is batched can display when descending the operation uncoiling, make roll bending in the process of uncoiling, the layer of coil of strip with layer between relative displacement takes place, phase mutual friction and then cause the scratch defect of coil of strip between the steel plate.Do not reach quality requirement mostly owing to have the steel plate of scratch defect, can't pay the user and use, therefore useless the processing declared in general equal conduct, not only reduced product percent of pass, directly influence quality index, and increased loss due to spoiled work, greatly reduced economic benefit of enterprises.
Summary of the invention
The purpose of this utility model is exactly at above-mentioned defective, provides a kind of simple, can accurately indicate coil of strip scratch defect position, thereby for processing provides foundation, reduces the defects detection marking plate of loss due to spoiled work.
For this reason, the utility model has been taked following solution:
A kind of cold-reduced sheet scratch defect certification mark plate, described marking plate is the rectangular plastic thin plate, an end of rectangular thin plate has inwardly recessed circular arc, has narrow otch together at arc end along the center line of rectangular thin plate.
The arc radius of described marking plate is identical with coiler mandrel axle radius.
The width of described narrow otch is 18～22mm, and the degree of depth is 650～750mm.
During use, the marking plate arc end is stuck on the reel spindle nose, marking plate plane and steel plate are close to, and utilize the narrow incision of spray alignment mark plate to spray then, stay the equidistant white line in 4 roads along coil of strip coil diameter direction.By control uncoiling speed; and along with the white line situation of change is observed in the coil diameter reduction; compressor emergency shutdown when torsional deformation appears in white line; adjust last process tension force according to measurement result; thereby avoid the generation of scratch defect, reduce the cold-reduced sheet quantity scrapped, improve yield rate and up-to-standard rate; for large-scale cold rolling factory, can save every year and be worth nearly 2,000,000 yuan.
Description of drawings
Accompanying drawing is the cold-reduced sheet scratch defect certification mark composition that hardens.
Among the figure: sheet plastic 1, narrow otch 2, circular arc 3.
The specific embodiment
By accompanying drawing as seen, the cold-reduced sheet scratch defect certification mark plate of the utility model system adopts sheet plastic 1 processing and fabricating to form, and integral body is a rectangle.Its rectangular dimension determines that according to the coil of strip diameter that is batched the length and width of the utility model design are of a size of 1400 * 600mm.Lay steadily when guaranteeing that the utility model uses, be processed with an inside recessed circular arc 3 in the lower end of rectangular plastic thin plate 1, the arc radius of circular arc 3 is 610mm, and is identical with the radius of coiler mandrel axle, so that marking plate can stably be stuck on the coiler mandrel spindle nose.On the arc of circular arc 3 top, upwards have narrow otch 2 together along the center line of rectangular plastic thin plate 1, narrow otch 2 is mainly established for spraying out white line markings, therefore width is difficult for wide, but it is enough clear that the too narrow white lines of width are difficult to again, so it is 20mm that the utility model is chosen the width of narrow otch 2, the degree of depth is 700mm, and its degree of depth is half of rectangular plastic thin plate 1 length just.
Claims (3)
1. a cold-reduced sheet scratch defect certification mark plate is characterized in that described marking plate is the rectangular plastic thin plate, and an end of rectangular thin plate has inwardly recessed circular arc, has narrow otch together at arc end along the center line of rectangular thin plate.
2. cold-reduced sheet scratch defect certification mark plate according to claim 1 is characterized in that the arc radius of described marking plate is identical with coiler mandrel axle radius.
3. cold-reduced sheet scratch defect certification mark plate according to claim 1 is characterized in that the width of described narrow otch is 18～22mm, and the degree of depth is 650～750mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201442035U CN201659172U (en) | 2010-03-30 | 2010-03-30 | Scratching defect detection marking plate for cold-rolled plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201442035U CN201659172U (en) | 2010-03-30 | 2010-03-30 | Scratching defect detection marking plate for cold-rolled plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201659172U true CN201659172U (en) | 2010-12-01 |
Family
ID=43229582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201442035U Expired - Fee Related CN201659172U (en) | 2010-03-30 | 2010-03-30 | Scratching defect detection marking plate for cold-rolled plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201659172U (en) |
-
2010
- 2010-03-30 CN CN2010201442035U patent/CN201659172U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20160330 |