CN109604719B - Method for cutting sickle-bend steel plate - Google Patents
Method for cutting sickle-bend steel plate Download PDFInfo
- Publication number
- CN109604719B CN109604719B CN201811471268.8A CN201811471268A CN109604719B CN 109604719 B CN109604719 B CN 109604719B CN 201811471268 A CN201811471268 A CN 201811471268A CN 109604719 B CN109604719 B CN 109604719B
- Authority
- CN
- China
- Prior art keywords
- cutting
- lines
- steel plate
- cutting lines
- daughter board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shearing Machines (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a method for cutting a sickle-bend steel plate, which comprises the steps of routing each daughter board block by block, wherein two lines are formed by a tail cutting line and a head cutting line of two adjacent daughter boards after routing, and the same sectional cutting line is not shared; and then cutting to obtain the daughter board meeting the requirements. The sickle-bend steel plate cutting method effectively reduces the occurrence probability of the short-length unplanned products of the daughter boards, improves the success rate of the steel plates, effectively reduces the production cost, and realizes cost reduction and efficiency improvement; simple and easy to operate, and has wide application prospect.
Description
Technical Field
The invention relates to the technical field of steel plate cutting, in particular to a method for cutting a sickle-bend steel plate.
Background
In the process of rolling the wide and thick steel plate, two situations that a large flat plate is flat and the length direction of the rolled steel plate is not in a flat state (a sickle-bend steel plate) generally occur. In the subsequent steel plate cutting process, for a large plate with straight supplied materials, the routing method before cutting comprises the following steps: two cutting lines with parallel full lengths are punched on the edge part along the length direction of the large plate, and the distance between the parallel cutting lines is the width of a finished product. The steel plate head and tail transverse cutting line and the position and the angle of the middle section cutting line need to meet the requirements of length size and rectangle degree, two cutting lines in the length direction of adjacent sub-plates are continuous, and the two adjacent sub-plates share the same section line. During the process of cutting finished products of the steel plate with the camber which is not in a straight state in the length direction of the steel plate, the steel plate is cut according to a normal straight large plate cutting method, and the defects that cutting lines along the length direction fall outside the plate surface, the cutting cannot meet the size requirement of finished products, a large number of non-planned products appear, the yield is reduced, the manufacturing cost is increased and the like exist.
Therefore, the technical personnel in the field are dedicated to develop a sickle-curve steel plate cutting method, and the method aims to solve the problem of defects existing in the prior art when the finished product cutting is carried out on the sickle-curve steel plate which is not in a straight state in the length direction of the steel plate.
Disclosure of Invention
In view of the above defects in the prior art, the technical problems to be solved by the invention are that the prior art cannot meet the size requirement of a finished product when the finished product is cut on a sickle-curved steel plate which is not in a straight state in the length direction of the steel plate, a large number of non-planned products are produced, the yield is reduced, and the manufacturing cost is increased.
In order to achieve the purpose, the invention provides a method for cutting a sickle-bend steel plate, which comprises the steps of routing each daughter board block by block, wherein the tail cutting line and the head cutting line of two adjacent daughter boards after routing are two lines, and the same subsection cutting line is not shared; then cutting to obtain a daughter board meeting the requirements;
further, the sickle-curve steel plate cutting method specifically comprises the following steps:
step 1, punching edge cutting lines of a first daughter board on two side edges along the camber trend of a steel plate, wherein starting points of the two edge cutting lines are positioned on the steel plate, and the length of the edge cutting lines is greater than that of a finished daughter board;
step 2, taking a point on the head part of the sickle-curve steel plate and each of the two edge cutting lines as a cutting starting point of the two edge cutting lines, respectively measuring the length of the sub-plate and the sum of tolerance along the two edge cutting lines, and fixing points on the two edge cutting lines according to the measured lengths to serve as cutting end points of the two edge cutting lines;
step 3, measuring the length of each diagonal line of the head and the tail of the sickle-curve steel plate respectively, integrally moving the positions of the starting point and the ending point on the same cutting line forwards or backwards according to the diagonal difference value to ensure that the diagonal difference value is less than or equal to 5mm, and marking the positions of the starting point and the ending point on the cutting lines of the two edges again;
step 4, marking and connecting the cutting starting points on the two edge cutting lines marked again, namely the head cutting line of the first sub-board; connecting the cutting ending dot-dash lines on the two edge cutting lines marked again to obtain tail cutting lines of the first daughter board; obtaining four cutting lines of the first sub-board;
step 5, repeating the steps, and routing the cutting lines of the second daughter board and the third daughter board … block by block;
and 6, sequentially cutting the whole large plate subjected to routing in the step 5 according to the positions of the cutting lines to complete the cutting process of the sickle-bend steel plate, so as to obtain the sub-plate meeting the requirements.
The tail cutting line and the head cutting line of two adjacent block boards are two lines, and the same subsection cutting line is not shared;
furthermore, the tail cutting line and the head cutting line of two adjacent block sub-boards are two lines, and the two cutting lines are V-shaped or inverted V-shaped;
further, in the step 1, the distance between the two edge cutting lines is the sum of the contract width and the tolerance width.
By adopting the scheme, the sickle-curved steel plate cutting method disclosed by the invention has the following technical effects:
by adopting the method for cutting the steel plate with the sickle bend, the edge cutting line is cut according to the sickle bend trend of the incoming steel plate, two adjacent sub-plates do not share a sectional cutting line, the two sectional cutting lines are V-shaped or inverted V-shaped, the cut sub-plates meet the size requirement of finished products, the generation of unplanned products caused by the short length of the sub-plates is avoided, the yield of the unplanned products is reduced, the yield is high, and the production cost is greatly reduced;
in conclusion, the sickle-bend steel plate cutting method provided by the invention has the advantages that the occurrence probability of the short-length unplanned products of the daughter boards is effectively reduced, the success rate of the steel plates is improved, the production cost is effectively reduced, and cost reduction and efficiency improvement are realized; simple and easy to operate, and has wide application prospect.
The conception and the technical effects of the present invention will be further described with reference to the following detailed description, so that the objects, features and effects of the present invention can be fully understood.
Drawings
FIG. 1 is a wire bonding diagram of the method for cutting a sickle-bend steel plate according to the present invention;
FIG. 2 is a schematic diagram of wire bonding in a straight steel plate cutting method;
in fig. 1, 20, a sickle-bend steel plate; 21. a first daughter board; 22. a second daughter board; 23(24), a first block plate edge cutting line; 25. cutting a line at the head of the first block board; 26. cutting a line at the tail of the first daughter board; 27. cutting a line at the head of the second daughter board; 28(29), a second daughter board edge cutting line; 31. cutting a line at the tail part of the second daughter board;
in fig. 2, 10, a flat steel plate; 11. a first daughter board; 12. a second daughter board; 13. edge cutting lines; 14. the line is segmented.
Detailed Description
The following describes preferred embodiments of the present invention so that the technical contents thereof will be more clearly and easily understood. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.
The specific implementation steps of the sickle-curve steel plate cutting method disclosed by the invention are described in combination with figure 1 as follows:
when routing and cutting are carried out on the incoming steel plate 20 in the shape of the sickle bend, firstly, cutting lines 23 and 24 at the edge part of the first sub-plate are routed on the first sub-plate 21; two parallel first sub-plate edge cutting lines 23 and 24 are punched on the two side edges of the first sub-plate 21 along the camber direction from the effective width position of the head part of the sickle-bend steel plate, the distance between the first sub-plate edge cutting lines 23 and 24 and the nearest point of the outer edge of the steel plate ensures that the edge cutting quality meets the requirement, and the lengths of the first sub-plate edge cutting lines 23 and 24 are 100mm longer than the length of the sub-plate; the vertical distance between the two cutting lines 23 and 24 at the edge part of the first block board is the contract width plus tolerance width;
then, removing rolling irregularities on the head of the first sub-board 21, taking one point on each of two first sub-board edge cutting lines 23 and 24 as a cutting starting point of the two edge cutting lines, respectively measuring the sum of the length and the tolerance length of the sub-board along the two first sub-board edge cutting lines 23 and 24, and fixing points on the two first sub-board edge cutting lines 23 and 24 of the two edges according to the measured length as cutting ending points of the two edge cutting lines;
then, the following two diagonal lengths are measured, respectively:
1. a distance from a cutting end point at the tail of the first daughter board edge cutting line 23 to a cutting start point of the first daughter board edge cutting line 24;
2. a distance from a cutting end point at the tail of the first daughter board edge cutting line 24 to a cutting start point of the first daughter board edge cutting line 23;
calculating the difference value of the two diagonal lines according to the distance length of the two diagonal lines so as to ensure the rectangular degree of the finished daughter board; according to the difference value, the cutting starting point and the cutting ending point on the cutting lines 23 and 24 on the edge part of each first daughter board are integrally moved forwards or backwards, the cutting starting point and the cutting ending point on the same cutting line are moved towards the same direction, and the moving distances are equal; the difference value of the two diagonal lines is less than or equal to 5mm, and the cutting starting point and the cutting ending point on the cutting lines of the two edge parts are marked again;
then, the cutting starting points on the cutting lines 23 and 24 of the edge part of the first daughter board are subjected to scribing connection to form a first daughter board head cutting line 25 of the first daughter board 21, the cutting ending dot-dash lines on the cutting lines 23 and 24 of the edge part of the first daughter board are connected to form a first daughter board tail cutting line 26 of the first daughter board 21, and routing of four cutting lines of the first daughter board is completed;
repeating the steps, routing the cutting lines of the second sub-board and the third sub-board … one by one, wherein the tail cutting line of the first sub-board and the head cutting line of the second sub-board are two lines after routing, the same segmented cutting line is not shared, and the two cutting lines are V-shaped or inverted V-shaped; similarly, the sectional cutting line between the second sub-plate and the third sub-plate is V-shaped or inverted V-shaped;
and finishing routing of all daughter board cutting lines of the whole large board, sequentially cutting according to the positions of the cutting lines, and finishing cutting of the sickle-bend steel plate to obtain the daughter board meeting the requirements.
Compared with the cutting method of the incoming flat steel plate:
as shown in fig. 2, the wire bonding method before cutting of the incoming flat steel plate includes: two parallel edge cutting lines 13 with full length are punched on the edge along the length direction of the flat steel plate 10, the distance between the parallel cutting lines is the width of a finished daughter board, the positions and the angles of the head-tail transverse cutting line of the flat steel plate 10 and the middle subsection cutting line 14 need to meet the requirements of length size and 'rectangular degree', a first daughter board 11 is obtained, and the routing is sequentially repeated to obtain the cutting lines of a second daughter board 12 and a third daughter board …; and finishing routing of all daughter board cutting lines of the whole large board, sequentially cutting according to the positions of the cutting lines, and finishing cutting of the sickle-bend steel plate to obtain the daughter board meeting the requirements. Because the supplied steel plate is straight, so, two lines of cut of adjacent daughter board length direction are all continuous, and two adjacent daughter boards share same segmentation line.
According to the method for cutting the steel plate with the sickle bend, the edge cutting line is cut according to the sickle bend trend of the incoming steel plate by using the operation of the embodiment, two adjacent sub-plates do not share the sectional cutting line, the two sectional cutting lines are V-shaped or inverted V-shaped, the cut sub-plates meet the size requirement of finished products, meanwhile, the non-planned products are prevented from being produced due to the short ruler of the sub-plates, the yield of the non-planned products is reduced, the yield is high, and the production cost is greatly reduced.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (2)
1. A method for cutting a sickle-bend steel plate is characterized by comprising the steps of routing each daughter board block by block, wherein two lines are formed by a tail cutting line and a head cutting line of two adjacent daughter boards after routing, and the same segmented cutting line is not shared; then cutting to obtain a daughter board meeting the requirements;
the method specifically comprises the following steps:
step 1, punching edge cutting lines of a first daughter board on two side edges along the camber trend of a steel plate, wherein starting points of the two edge cutting lines are positioned on the steel plate, and the length of the edge cutting lines is greater than that of a finished daughter board;
step 2, taking a point on the head part of the sickle-curve steel plate and each of the two edge cutting lines as a cutting starting point of the two edge cutting lines, respectively measuring the length of the sub-plate and the sum of tolerance along the two edge cutting lines, and fixing points on the two edge cutting lines according to the measured lengths to serve as cutting end points of the two edge cutting lines;
step 3, measuring the length of each diagonal line of the head and the tail of the sickle-curve steel plate respectively, integrally moving the positions of the starting point and the ending point on the same cutting line forwards or backwards according to the diagonal difference value to ensure that the diagonal difference value is less than or equal to 5mm, and marking the positions of the starting point and the ending point on the cutting lines of the two edges again;
step 4, marking and connecting the cutting starting points on the two edge cutting lines marked again, namely the head cutting line of the first sub-board; connecting the cutting ending dot-dash lines on the two edge cutting lines marked again to obtain tail cutting lines of the first daughter board; obtaining four cutting lines of the first sub-board;
step 5, repeating the steps, and routing the cutting lines of the second daughter board and the third daughter board … block by block;
step 6, sequentially cutting the whole large plate subjected to routing in the step 5 according to the positions of the cutting lines to complete the cutting process of the sickle-bend steel plate, so as to obtain a sub-plate meeting the requirements;
the tail cutting line and the head cutting line of two adjacent block boards are two lines, and the same subsection cutting line is not shared; the tail cutting line and the head cutting line of the two adjacent block sub-plates are two lines, and the two cutting lines are V-shaped or inverted V-shaped.
2. The method of claim 1,
in the step 1, the distance between the two edge cutting lines is the sum of the contract width and the tolerance width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471268.8A CN109604719B (en) | 2018-12-04 | 2018-12-04 | Method for cutting sickle-bend steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471268.8A CN109604719B (en) | 2018-12-04 | 2018-12-04 | Method for cutting sickle-bend steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109604719A CN109604719A (en) | 2019-04-12 |
| CN109604719B true CN109604719B (en) | 2020-06-02 |
Family
ID=66005921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811471268.8A Active CN109604719B (en) | 2018-12-04 | 2018-12-04 | Method for cutting sickle-bend steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109604719B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113560731B (en) * | 2021-08-16 | 2023-02-03 | 宝钢湛江钢铁有限公司 | Maximum rapid cutting method for steel plate size in abnormal rolling state |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0780638A (en) * | 1993-09-08 | 1995-03-28 | Nippon Steel Corp | Cutting method of base stock with camber |
| CN100374218C (en) * | 2005-12-09 | 2008-03-12 | 广东韶钢松山股份有限公司 | Medium-thick plate production process |
| CN102179415B (en) * | 2011-03-21 | 2012-10-10 | 南京钢铁股份有限公司 | On-line measuring method and device of camber of steel plate |
| CN103231104B (en) * | 2013-04-28 | 2015-08-12 | 江苏澳洋顺昌股份有限公司 | The slitting method of the fillet aluminium sheet that a kind of 12.5mm is wide |
| CN103894423A (en) * | 2013-12-27 | 2014-07-02 | 内蒙古包钢钢联股份有限公司 | System and method for controlling edge camber of steel plate in production process of plates of moderate thickness |
| CN105447817B (en) * | 2015-11-09 | 2018-11-09 | 北京科技大学 | A kind of hot-rolled intermediate billet flat image joining method based on edge contour |
| CN106269900B (en) * | 2016-09-22 | 2018-06-15 | 北京科技大学 | A kind of camber Discrete control method based on hot-rolled intermediate billet flat shape |
| CN108655203B (en) * | 2017-03-31 | 2020-06-23 | 宝山钢铁股份有限公司 | Method for quickly identifying and monitoring camber defect of hot continuous rolling strip steel |
-
2018
- 2018-12-04 CN CN201811471268.8A patent/CN109604719B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109604719A (en) | 2019-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107856309B (en) | Rapid path planning method for additive manufacturing and remanufacturing | |
| KR100720931B1 (en) | Manufacturing method of the housing for lcd module and housing made by the same | |
| CN109604719B (en) | Method for cutting sickle-bend steel plate | |
| CN110434390B (en) | Online sizing intelligent segmented shearing system, method and shearing equipment for steel plates with irregular shapes | |
| KR101110917B1 (en) | Blank for metallic can, and method for manufacturing the metallic can | |
| US2489583A (en) | Method of cutting blanks from thin sheet or strip material | |
| CN212793911U (en) | Cutting structure and round product processing equipment | |
| CN108942117B (en) | U-shaped aluminum material L-shaped bevel machining process | |
| CN106345857B (en) | A kind of method that flat section approaches circular arc | |
| CN105492136A (en) | Method for manufacturing curved component having polygonal closed-cross-sectional structure and curved component having polygonal closed-cross-sectional structure and manufactured using said method | |
| JPS58173026A (en) | Bending method | |
| WO2021057618A1 (en) | Method for molding square-wire conductor | |
| CN103762136B (en) | A kind of manufacture method of parallel grating | |
| CN111036759A (en) | Machining process capable of ensuring flatness of thin plate after sand punching and broaching | |
| CN101491870A (en) | LCD panel frame production method | |
| CN105312379A (en) | Roller forming technique for container top plate and equipment thereof | |
| CN108617074A (en) | A kind of flexible circuitry board machining process | |
| CN101596676B (en) | Manufacturing device of box board and operating method thereof | |
| JP2009090293A (en) | Punch die for bending, bending method and telescopic box boom such as crane manufactured using them | |
| CN211490121U (en) | Laser cutting equipment for cutting plate in partition mode | |
| US20050183487A1 (en) | Sheet metal section | |
| JP2018043249A (en) | Method for production of h-section steel | |
| CN101954505A (en) | Method for molding transverse span shaft of milling machine | |
| CN107570622B (en) | Emergency guide rail and bending forming method thereof | |
| CN105544860A (en) | Manufacturing method of regular hexagon castellated beam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |