KR20160116095A - Roll forming method and apparatus for machining parts - Google Patents
Roll forming method and apparatus for machining parts Download PDFInfo
- Publication number
- KR20160116095A KR20160116095A KR1020150041586A KR20150041586A KR20160116095A KR 20160116095 A KR20160116095 A KR 20160116095A KR 1020150041586 A KR1020150041586 A KR 1020150041586A KR 20150041586 A KR20150041586 A KR 20150041586A KR 20160116095 A KR20160116095 A KR 20160116095A
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- South Korea
- Prior art keywords
- forming
- unit
- continuously
- roll
- iron plate
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
- B21D31/02—Stabbing or piercing, e.g. for making sieves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
The present invention relates to a method and an apparatus for manufacturing roll-formed parts, and more particularly, to a method and apparatus for manufacturing roll-formed parts, which can continuously perform a manufacturing process from a supply of a coil steel sheet to a roll- And reducing the load of the cutting edge during cutting of the formed steel plate, thereby prolonging the service life of the cutting blade, and a device therefor.
The term "roll forming" refers to a method of putting a material to be processed in between rolling rolls, and generally, a processing method in which a sheet material is inserted into a pipe or a shape of a section.
The products manufactured through the roll forming process are bent to have various cross-sectional shapes, and thus are used in the production of products for various industrial fields. Particularly, they are widely used in parts production in the automobile industry.
In general, the structural strength and collision safety of automobiles are very important. In addition, since the improvement of automobile performance and fuel efficiency through light weight is a key element of automobile development, many of the major components constituting the automobile are required to satisfy both weight and strength at the same time Particularly, parts related to crash safety of automobiles are manufactured by roll-forming high-tensile steels which are lighter than ordinary steels and have higher strength.
The high tensile strength steel used in the automobile industry has a tensile strength of 80 to 150 kg / mm 2 or more and has a very high tensile strength relative to the weight. Therefore, the use of automobile parts manufactured by roll forming the high tensile steel in the automobile industry, In fact.
On the other hand, passenger cars, which are one of the most representative automobiles, usually have a length of about 5 m. Therefore, most of the parts manufactured by roll forming among the parts used for passenger cars have a length as short as several meters or less.
Therefore, conventionally, when producing automobile parts through roll forming, first, a coil steel plate made of high tensile steel is first cut to meet the length of the product, then the cut steel plates are fed one by one into a roll forming machine to perform roll forming, To produce a product.
In manufacturing an automobile part through roll forming as described above, in the case of manufacturing a product by cutting the coiled iron plate to meet the length of the product and then performing roll forming on the cut iron plate, It is difficult to ensure the continuity of the foaming process, and the productivity of the product is deteriorated.
That is, conventionally, the coiled steel plate is continuously cut to fit the length of the product, the cut steel plate is transferred to a roll forming machine, and then the steel plate cut to the product length is roll- After the molding is completed in the roll forming machine and the molded article to be discharged is required to be welded, the molded article is transferred to a welding machine and welded.
Therefore, a separate work space is required for cutting and laminating the coil steel plate, and a transferring means for transferring the cut-laminated steel plate to a roll-forming molding machine or a force for controlling such transferring means is required, A separate work space is required for the loading of the molded products and a need for a means for transferring the molded products or a force for controlling such transfer means necessitates a lot of space in the construction of the manufacturing facility, There is a problem that the labor cost is increased and the manufacturing cost of the product is increased as a whole.
In addition, it is inevitable that redundant processes are unnecessary in the entire production process such as cutting, stacking, conveying and forming of coiled iron plate which is a material of the product, and reloading and transferring of the molded product again. There is a problem that the productivity is lowered.
Therefore, by continuously performing the series of processes required for the production of products ranging from the supply of the coil steel sheet, which is the material of the product, to the roll forming, welding and cutting, the continuous process is ensured to improve the productivity and facilitate the mass production of the products There is an urgent need to develop a method and apparatus for manufacturing roll-formed parts.
The present invention provides a method of manufacturing a roll forming part and an apparatus therefor to solve the conventional problems as described above, comprising: a steel plate feeding step of unrolling and continuously feeding a coiled coil wound in a roll state; A press piercing step of forming perforations (H) at regular intervals on a continuously supplied iron plate; Forming a pierced iron plate into a cross-sectional shape of the product; A sensing step of detecting a conveying distance of the formed molded iron plate and a perforation (H) position; And a cutting step of feeding the cutting blade (501) with a perforation (H) to cut the continuously supplied shaped iron plate to the length of the product, thereby forming a roll forming part manufacturing method,
An iron plate supply part (10) for releasing and continuously supplying a coiled iron plate wound in a roll state; A
The method and apparatus for manufacturing a roll forming part of the present invention as described above can continuously perform the manufacturing process of the product from the supply of the coil steel sheet to the cutting after the roll forming and without cutting unnecessary processes, At the same time, it is possible to mass-produce the product with a minimum of manpower, thereby reducing the manufacturing cost of the product.
In addition, it is possible not only to increase product competitiveness through mass production of high quality products by maintaining uniform product quality even in continuous production of products, but also to arrange all the production lines necessary for product production to be connected in a straight line, There is an advantage that the space utilization can be maximized and the purchase cost of the real estate necessary for building the production line can be reduced.
Further, in the process of cutting the rolled forming molded iron sheet to the length of the finished product, the cutting blade is inserted into the punch formed through the piercing to cut the formed iron plate, thereby reducing the load of the cutting blade made of the high- The service life of the cutting blade is extended, and more accurate and precise cutting of the finished product is achieved.
1 is a block diagram according to an embodiment of a method of manufacturing a roll forming part of the present invention.
2 is a block diagram according to an embodiment of a roll forming processed part manufacturing apparatus of the present invention.
3 is a perspective view showing an iron plate on which a perforation is formed by a press section of a roll forming part manufacturing apparatus of the present invention.
4 is a perspective view showing a rolled forming plate formed by a roll forming forming unit of a roll forming processed part manufacturing apparatus of the present invention.
5 is a cross-sectional view showing a state in which a formed iron plate is cut by a cutting portion cutting edge of a roll forming processed part manufacturing apparatus of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method and an apparatus for manufacturing a roll-formed part of the present invention will be described in detail with reference to the accompanying drawings.
A method of manufacturing a roll forming part according to the present invention comprises: an iron plate feeding step of loosening and continuously feeding a coil iron plate as shown in FIG. 1; A press piercing step of forming perforations (H) at regular intervals on a continuously supplied iron plate; Forming a pierced iron plate into a cross-sectional shape of the product; A sensing step of detecting a conveying distance of the formed molded iron plate and a perforation (H) position; And a cutting step of cutting the cut-forming
In the steel sheet supplying step, a coil steel plate having a tensile strength of 80 to 150 kg / mm < 2 > or higher is wound in a roll form and fed continuously at a constant speed using an uncoiler. However, if additional processes such as welding are required for the molding of finished products produced through roll forming, it is also possible to release the iron plates intermittently and supply them.
The press piercing step forms perforations (H) at regular intervals on the continuously supplied iron plates. At this time, the perforation H is used not only for detecting the distance of feeding the formed iron plate when the iron plate is formed by roll forming and then cutting the formed iron plate to fit the length of the product, The
Therefore, it is preferable that the perforations H are formed at appropriate positions according to the cross-sectional structure of the article so that the iron plate is formed on the flat surface, the side surface, and the bottom surface of the rolled forming molded steel plate.
In the roll forming step, an iron plate continuously fed after being pierced in the press piercing step is stepwise shaped to have a sectional shape of the finished product by using a plurality of forming
It is to be noted in advance that the number of the forming
The sensing step detects a conveying distance of the continuously-discharged molded iron plate while being formed in the roll forming forming step, and provides the detection signal to a control unit for controlling the operation of the
In the sensing step, the
The cutting step cuts the formed steel plate, which is formed and continuously discharged in the roll forming step, to fit the length of the finished product.
In the cutting step, a press equipped with a
On the other hand, the apparatus for producing a roll forming part of the present invention comprises an iron
In addition, a conveyor may be further provided to feed the steel sheet continuously fed from the steel
The
When uncoiler is used to uncoil the coil steel sheet and feed it to the
The
At this time, the punching blades are arranged in a circle, a rectangle, or a square at regular intervals so that a plurality of perforations H are formed at the same time while maintaining a constant spacing. In the case where a plurality of punching blades are mounted on the press, the intervals between the punching blades are set such that the perforations H formed by the punching blades are positioned on the flat, side, and bottom surfaces of the roll- It is adjustable according to the sectional structure.
The
At this time, the forming
The sensing means of the
In addition, the sensing means may include a mark sensor (402) for sensing a perforation (H) formed at a predetermined interval (cut interval) on the formed metal plate, for sensing light passing through a perforation (H) It is preferable to use a general light permeable type sensor for sensing the position of the light source H, but it is not limited to this.
When the conveying distance of the molded iron plate provided in the
It is preferable that the
In addition, it is preferable to use a press as the elevating means for raising and lowering the
The control unit may be configured to include the steel
A process for manufacturing a roll-formed part to which the present invention is applied and a process for manufacturing a roll-formed part according to the apparatus will be described below.
When the
The iron plate on which the perforations H are formed while being passed through the
Therefore, when the molded steel plate continuously discharged from the
The control unit controls the operation of the cutting
In the process of cutting the formed steel plate as described above, the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
10: steel plate supply part 20: press part
30: roll forming section 301: forming roll
40: sensing part 50:
501: Cutting blade A: Steel plate
A1: Coil iron plate A2: Molded iron plate
H: Thinning
Claims (4)
A press piercing step of forming a perforation (H) at a constant interval on the continuously supplied steel sheet;
A forming step of forming the pierced iron plate into a sectional shape of the product;
A sensing step of detecting a transfer distance and a perforation (H) position of the formed molded iron plate;
And a cutting step of feeding the cutting blade (501) into the perforation (H) to cut the continuously supplied shaped iron plate to fit the length of the product.
A press section 20 continuously piercing the iron plates continuously fed to form a perforation H at regular intervals on the iron plate;
A roll forming unit 30 having a plurality of forming rolls 301 arranged in a horizontal direction so as to sequentially form an iron plate continuously supplied with the perforations H so as to have a cross sectional shape of the finished product;
A sensing unit (40) having detection means for detecting a conveyance distance of the formed steel plate continuously discharged after the roll forming molding and a position of the perforation (H);
And a cutting unit 50 cutting the formed steel plate continuously fed with the cutting blade 501 into the perforation H according to a signal provided from the sensing unit 40, Roll forming part manufacturing equipment.
And a welding portion for performing welding at a required position of the rolled forming formed steel plate between the roll forming forming portion (30) and the sensing portion (40).
Wherein the coil steel plate is a high tensile steel having a tensile strength of 80 to 150 kg / mm < 2 > or more.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150041586A KR20160116095A (en) | 2015-03-25 | 2015-03-25 | Roll forming method and apparatus for machining parts |
Applications Claiming Priority (1)
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KR1020150041586A KR20160116095A (en) | 2015-03-25 | 2015-03-25 | Roll forming method and apparatus for machining parts |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102325863B1 (en) | 2020-05-14 | 2021-11-12 | 주식회사 솔라테크 | Parallel type manufacturing method of roll forming processed product |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20140015660A (en) | 2012-06-27 | 2014-02-07 | 이상관 | Roll forming device and forming method for side sill of vehicle |
KR101359478B1 (en) | 2013-07-18 | 2014-02-24 | 이성구 | High stiffness light-weight beam and its molding device and manufacturing method |
-
2015
- 2015-03-25 KR KR1020150041586A patent/KR20160116095A/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20140015660A (en) | 2012-06-27 | 2014-02-07 | 이상관 | Roll forming device and forming method for side sill of vehicle |
KR101359478B1 (en) | 2013-07-18 | 2014-02-24 | 이성구 | High stiffness light-weight beam and its molding device and manufacturing method |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102325863B1 (en) | 2020-05-14 | 2021-11-12 | 주식회사 솔라테크 | Parallel type manufacturing method of roll forming processed product |
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