KR101353024B1 - Reduction in stiffness and shape for keeping mr. roller steel and its manufacturing method - Google Patents

Abstract

The present invention relates to a shape roller type C-shaped steel for reducing materials and maintaining rigidity in comparison with an existing C-shaped steel and, more specifically, a manufacturing method for increasing rigidity of materials by flattering and pressing a plurality of curve shapes in which a material (a skelp) is stretched in the width (to stretch the skelp by reducing the thickness (t) of the same) according to drawing and embossing press processing methods (the width stretched according to the processing depth is changed) and is curved and performing a plastic work on the curve shape so that a circular material is reduced by providing the skelp material for manufacturing the C-shaped steel including a narrower deployed width than existing deployed width.

Description

Form roller type seed steel and material manufacturing method for material reduction and stiffness maintenance {Reduction in stiffness and shape for keeping Roller steel and its manufacturing method

The present invention relates to a shape roller type seed steel and a method of manufacturing the same for reducing the material and maintaining rigidity of the existing seed steel products, and more specifically, the use of the existing Skelp material for the production of seed steel Drawing and embossing roller processing methods (the width varies depending on the processing depth) Pressing the material (Skelp) to the width (to bend thickness (t)) Reduction} The curved shape is processed by flat compression plastic processing to increase the rigidity of the material and at the same time to increase the regular width. The drawing and embossing rollers are curved on the surface with narrow development width through the shape roller on one side of the material. Increased material by forming method, flattening the curved shape by flat pressing, flattening the curved shape, and drawing and embossing roller processing By rolling the step of thickness again with the step roller of thickness, it improves the rigidity for plastic processing of the material and expands it to the normal standard development width, and then forms the seed steel so that the shape part where the step of the material thickness is located is located inside. Product shape structure and standard The present invention relates to a shape roller type seed steel and a method of manufacturing the same for maintaining material rigidity and maintaining rigidity of existing products.

The section steel refers to rod-shaped rolls and roll forming products having various cross-sectional shapes, and is mainly used for steel structures such as building frame fixing frames.

Molten steel is injected into the shape of a footnote to form a steel ingot, removes impurities, densifies it, reheats it in a heating furnace, hangs it on a rolling mill, and polishes it into various cross-sectional shapes through several stages of sticking rollers. Thereafter, according to the cross-sectional shape, it is divided into a kind of isosceles a section, an isosceles a section, H section, I section, c section, Z section, T section, and C section.

Tensile strength is about 40-60kg / mm <2> as a general structural rolled steel, and the length of what is marketed is 10-15m normally.

Among them, the seed steel 10 has a relatively wide width and a top surface 11 formed in a planar shape, and both side surfaces 12 of the top surface 11 are bent to protrude to a predetermined width, and both sides are The bending blades 13 protrude from both sides of the space 14 from the lower side of the surface 12 to the inside.

The seed steel 10 is used for building interiors and structural combined with the panel to be bonded thereto, mainly used for partitions of the wall.

However, the conventional C-shaped steel is supplied with a regular width and thickness coil (Skelp), so it is weak in durability in a simple U-shape and is bent inward and outward due to the weight and external impact of the combined panel after installation on the building's exterior wall. There was concern.

As a conventional technique for solving the above disadvantages, Utility Model Registration No. 0431791 (registered on Nov. 17, 2006) is a seed steel in which a panel is inserted and fixed to an open portion thereof. Reinforcing grooves are formed in the longitudinal direction to prevent deformation due to the weight and external impact of the installed panels on the bottom and both sides, thereby improving durability and effectively preventing deformation due to the weight and external impact of the panel. .

However, such conventional C-shaped steel is effective only in one direction and only in all directions depending on the installation position by forming the reinforcing grooves in the form of unevenness while moving in the longitudinal direction by the roll forming process. However, due to the large amount of raw materials used, it is vulnerable to price competitiveness in the market, and easily deforms when load is applied in the opposite direction.

As another technique, Korean Patent Publication No. 10-2011-0054499 (published on May 25, 2011) discloses that a steel sheet formed with holes at regular intervals is formed by roll forming or pressing, and at both ends of the upper plate and the upper plate. Manufacturing a web member to bend to have two sidewall portions connected downward and a lip portion extending horizontally at the end of each sidewall portion, so that holes are formed at regular intervals on the two sidewall portions, respectively; And welding the lower flange member having a higher strength than the web member to protrude outwardly from the lip while connecting the lip portions of the web member to each other.

However, the present invention is to improve the strength through the step of welding the lower flange member to the bottom after forming the web member, but the use of the member to improve the strength through the flange member than the conventional, there is a disadvantage that is not economical The drawback is that the manufacturing process is complicated, so that it is much more economical to use a thicker web member in order to improve the strength, and thus a very uneconomical defect occurs.

Particularly, in case of standard products having a width of 100 mm in forming a product belonging to a standard, a general seed steel is produced by slotting to have a width of 240 mm and a width of 203 to 208 mm in order to reduce material weight. (t) is 2mm, but it is produced by molding down to 1.6 ~ 1.75mm, and it is produced as a defective product whose rigidity does not correspond to the standard due to its thinness with the drawback that normal standard products cannot be produced. In order to maintain the development width and thickness normally, in this case, the competitiveness will be lost, which leads to the problem of not being able to produce and to the problem that it is impossible to maintain the thickness, development width and normal stiffness.

In the case of producing a thickness of less than 1.6mm, it is impossible to use a thinner material because the raw material price is high and the unit price per ton rises.

Document 1. Utility Model Registration No. 0431791 (registered November 17, 2006) Document 2. Utility Model Registration No. 0417647 (registered May 24, 2006) Document 3. Patent Publication No. 2005-0032546 (published Apr. 07, 2005) Document 4. Patent Publication No. 10-2011-0054499 (published May 22, 2011)

Therefore, the problem of the present invention devised to solve the above-mentioned drawbacks is that in the production of seed steel with a roll forming machine by supplying coils, the material coil (Skelp) is narrower than the standard in front of the roll forming machine. If the material having the same width and the same thickness is bent on the primary important part, the drawing and embossing roller processing is stretched to increase the material, and the bent shape is flattened by the second flat compression molding to expand the material width. A flat shape made of width and formed with a thickness step is formed into a standard material with 15 ~ 30% reinforcement of material stiffness through material processing (15 ~ 30%) plastic processing through a 3rd step rolling roller with a thickness (t) step If you produce the seed steel by supplying it to the roll forming machine, the top, side, bending blades and thickness correspond to the standard, and reinforce 15 ~ 30% material stiffness through primary and secondary plastic processing of the material. The purpose is to reduce the material savings by 15-30%.

The present invention by supplying a material having a development width of 15-30% narrower than the standard development width by slotting the thickness of the regular standard and the coil by molding the inner drawing embossing portion and the outer drawing embossing portion so as to be symmetrical on both sides by a shape roller The primary bending drawing and embossing molding materials are molded, the primary bending drawing and embossing molding materials are molded, and the primary bending drawing and embossing molding materials are crimped to expand the inner flat pressing part and the outer flat pressing part. The second flat press molding material is formed by molding to have a development width of. The second flat press molding material is supplied, and the side surfaces are bent on both sides of the upper surface by roll forming, and the end portions of the side surfaces face inward. It is characterized in that it is made of seed steel by bending to form bending wings on both sides of the space.

The present invention supplies the material having a development width of 15-30% narrower than the standard development width by slotting the coil with the thickness of the standard specification, and the primary drawing embossing portion so as to be symmetrical between the central drawing, the embossment and both sides with the shape roller. And primary drawing, embossing and tertiary drawing, and embossing to form primary bending drawing and embossing molding materials, and flattening the primary bending drawing and embossing molding materials to form a central flat compression molding section and primary flat The pressing flat part, the second flat crimping part and the third flat crimping part are unfolded and molded to have a development width of a normal standard to form a second flat crimping material, and the second flat crimping molding material is supplied to roll forming The side surface is bent on both sides of the upper surface, and the ends of the side surface are bent to face inward to form bending blades on both sides of the space, characterized in that made of seed steel. It is.

The present invention includes: a material slitting step of supplying a coil and slitting a material to have a development width that is 15 to 30% narrower than the development width of a normal standard;

By supplying the material to the primary bending drawing and embossing forming apparatus, the primary bending drawing and embossing are formed at regular intervals in the drawing, embossing upper roller and drawing, and the embossing lower roller to increase the thickness while reducing the thickness. First drawing, embossing molding material processing step of bending drawing, embossing molding material;

Supplying the primary bending drawing and embossing molding material to the secondary flat pressing apparatus, the drawing and embossing are sequentially increased at regular intervals from the flat pressing upper roller and the flat pressing lower roller, and then the flat pressing molding part is compressed to develop a normal standard. A second flat press molded material processing step of processing into a second flat press molded material having a width;

The secondary flat press molding material is supplied to a roll forming machine so that the flat press molding part is located inside, and side surfaces are formed on both sides of the upper surface, and the sheet steel is bent inward from the lower end of the side surface. Seed steel shape molding step of molding to have a shape of;

An automatic cutting step of forming the seed steel to have a shape of the seed steel, and then cutting the sheet into a length of 10 to 15 meters by supplying it to an automatic cutting system;

A painting and drying step of supplying the cut seed steel to a painting and drying apparatus through a lift conveyor and applying the paint to a painting and drying apparatus through a lift conveyor to apply paint to the entire surface and then to dry it; And

A conveyor drying step in which the paint is applied in the painting and drying apparatus and then dried, supplied to the elevator drying system from a mobile conveyor, and dried sufficiently to complete the seed steel; .

According to the present invention, in the production of seed steel using a roll forming machine by supplying a coil (Skelp), a material having a spread width of 15 to 30% narrower than the specification (240 mm) and having the same thickness (2t) in front of the roll forming machine is placed at a constant position. In the transverse direction, a plurality of curved shapes are formed by primary drawing, embossing molding and flat pressing to have a development width (240 mm) of a regular standard, and formed by primary bending drawing and embossing, and drawing the first curved shape. When the embossed molding material is flat pressed and molded into a second compression molding material, and the seed steel is produced so that the material thickness step forming part is formed inside with a forming machine, the upper surface, the side surface, the bent wing and the thickness correspond to the standard. It is to provide the effect that can be produced by greatly improving the rigidity and material saving of the product.

In the present invention, by processing and supplying a material having a narrower width than the standard and having the same thickness, the material is expanded by drawing and embossing the first bent shape, and the flat shape is press-molded to form the bent shape. It is possible to produce products that reduce materials and maintain the compatibility of existing product standards by supplying them to the market. It is to provide an effect that can reduce the 15 to 30% or more.

1 is a perspective view of a conventional seed steel
2 is a perspective view showing a preferred embodiment of the present invention.
3 is a front view of the seed steel produced by increasing the development width of the present invention;
Figure 4 is a front view showing the manufacturing process for the seed steel to be produced by increasing the development width of the present invention
5 is a perspective view of another embodiment of the seed steel of the present invention;
6 is a front view of another embodiment of the seed steel of the present invention;
Figure 7 is a front view showing the manufacturing process of another embodiment of the seed steel of the present invention
8 is a plan view showing a state of forming the present invention into a roller type
9 is a front view showing a state of forming the present invention into a roller type
10 is an enlarged plan view of a main portion showing a state of forming the present invention into a roller shape;
11 is an enlarged front view of a main portion showing a state of forming the present invention into a roller shape;
12 is an enlarged front view of a main molding part in a state of forming the present invention into a roller shape;
13 is an enlarged side view of a main molding part in a state of forming the present invention into a roller shape;
Figure 14 is a side view of the installation state of the roller for the roller type of the present invention
15 is a plan view showing a state in which the narrow width material of the present invention is supplied and molded to a standard width;

BEST MODE FOR CARRYING OUT THE INVENTION The most preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

Figure 2 is a perspective view showing a preferred embodiment of the present invention, Figure 3 is a front view of the seed steel produced by increasing the development width of the present invention, Figure 4 is produced for the seed steel produced by increasing the development width of the present invention The front view showing the process is shown.

By supplying the raw material 20 having a thickness of 2 mm thickness, which is cut into a development width 15-30% narrower than the standard development width by slotting the coil, a plurality of internal drawing and embossing parts are symmetrical to both sides at regular intervals. 31) and the external drawing, the embossed portion 32 is molded into a primary bending drawing, embossed molding material 30 using a shape roller.

The primary bending drawing and embossing molding material 30 is to mold the inner drawing, the embossing part 31 and the outer drawing, the embossing part 32 to have a concave-convex shape in the downward direction and to increase the spreading width of the material (Skelp).

In the process of supplying the primary curved drawing and the embossing molding material 30, the inner drawing, the embossing part 31 and the outer drawing, and the embossing part 32 are unfolded, and the inner flat pressing molded part 41 and the outer flat are unfolded. The second flat press molding material 40 in the form of a straight line is molded like the press molding part 42, and the second flat press molding material 40 has a development width of 210 to 240 mm, which is a standard. The inner flat press molding part 41 and the outer flat press molding part 42 are molded to have a thickness of 10 to 15% thin (1.7 to 1.9 mm) with respect to the standard thickness of the material 20.

The secondary flat pressing molding material 40 is supplied to the rear roll forming machine to bend the side surface 12 in one direction on both sides of the upper surface 11, and then end the end of the side surface 12 inward. It is bent to form bending blades 13 on both sides of the space 14 to form the overall shape of the seed steel 10 and then cut to a predetermined length (6 meters to 15 meters) to produce.

The seed steel 10 is a top corner material thickness stepped portion 15 is formed in the bent portion of the inner both sides of the upper surface 11 and the inner upper side of the side surface 12, the side surface 12 Lower corner material thickness step 16 is formed at both the inner lower side and the inner side of the bent wing 13, resulting in the plastic processing of the material through the secondary drawing and normal embossing of the dimensions and material of the normal standard. It is to provide rigidity and material saving.

The dimension setting of the development width is recorded as one seed steel (10) as an example that is provided with various dimensions in accordance with the actual product specifications of the seed steel (10), to provide a slot having a thickness of the standard 15-30% narrower than the standard spreading width, and the normal spreading width is provided by primary bending drawing and embossing, so that the upper surface 11, the side surface 12 and the bent wing that correspond to the normal specification are provided. The seed steel 10 having (13) is molded.

5 is a perspective view of another embodiment of the seed steel of the present invention, Figure 6 is a front view of another embodiment of the seed steel of the present invention, Figure 7 is a front view showing a manufacturing process of another embodiment of the seed steel of the present invention It is shown.

The center drawing, the embossing part 33 and the primary drawing are supplied so as to be symmetrical on both sides at regular intervals by supplying the material 20 having the thickness of the cut, which is cut to 15-30% narrower than the standard development width by slotting the coil. , The embossing part 34, the secondary drawing, the embossing part 35 and the tertiary drawing, and the embossing part 36 are molded into the primary bending drawing and the embossing molding material 30 using the shape roller.

The primary bending drawing, the embossed molding material 30 is the central drawing, the embossing part 33 and the primary drawing, the embossing part 34, the secondary drawing, the embossing part 35 and the tertiary drawing, the embossing part 36 ) Is formed to have a concave-convex shape in the downward direction and increases the spreading width of the material (Sklp).

In the process of supplying the primary bending drawing and the embossing molding material 30, the central drawing in the form of irregularities, the embossing part 33 and the primary drawing, the embossing part 34, the secondary drawing, the embossing part 35 and 3 The primary drawing, the embossed part 36 is unfolded, such as the center flat crimping part 43, the first flat crimping part 44, the second flat crimping part 45, and the third flat crimping part 46. The second flat press molding material 40 of a straight shape is molded, and the second flat press molding material 40 has a development width of a standard (210 to 240 mm), and the central flat press molding part 43 ), The first flat press molding part 44, the second flat press molding part 45, and the third flat press molding part 46 are 10-15% thinner than the standard thickness of the material 20. 1.9 mm).

The secondary flat pressing molding material 40 is supplied to the rear roll forming machine to bend the side surface 12 in one direction on both sides of the upper surface 11, and then end the end of the side surface 12 inward. It is bent to form bending blades 13 on both sides of the space 14 to shape the overall shape of the seed steel 10 and then cut to a predetermined length (6 to 10 meters) to produce.

The seed steel 10 forms a central material thickness step portion 11a at the inner center of the upper surface 11 and the upper corner material thickness stepped portions at both the inner and upper sides of the side surface 12. 15a is formed, and the side material thickness step 12a is formed at the inner center of the side surface 12 and the lower corner material thickness step is bent at both the inner lower side and the inside bent side of the bent wing 13. The portion 16a is formed to provide rigidity of the standard.

The dimension setting of the development width is recorded as one seed steel (10) as an example that is provided with various dimensions in accordance with the actual product specifications of the seed steel (10), to provide a slot having a thickness of the standard 15-30% narrower than the standard spreading width, and the normal spreading width is provided by primary bending drawing and embossing, so that the upper surface 11, the side surface 12 and the bent wing that correspond to the normal specification are provided. The seed steel 10 having (13) is molded.

8 is a plan view showing a state of forming the present invention into a roller shape, FIG. 9 is a front view showing a state of forming the present invention into a roller shape, and FIG. 10 is a main portion enlarged showing a state of forming the present invention into a polar shape. 11 is a plan view showing a main portion enlarged front view showing a state of forming the present invention into a roller shape.

Slotted coils are supplied from the uncoiler 100, which is cut into narrower widths than the specification, and is supplied from the uncoiler 100. When the material 20 is supplied, the first bend drawing and the embossing forming apparatus 110 are internally formed. The primary bending drawing and the embossing molding material 30 are formed by forming the inner drawing, the embossing part 31 and the outer drawing, and the embossing part 32 so as to widen the width.

The primary bending drawing, embossing forming apparatus 110 is a combination of a pair of drawing, embossing upper roller 115 and the drawing, embossing lower roller 116 by the power provided through the motor 114 material It is to widen the width of (20).

When the primary bending drawing and the embossing molding apparatus 110 is supplied with the primary bending drawing and the embossing molding material 30, the secondary drawing, the embossing unit 31 and the external drawing are performed in the secondary flat pressing molding apparatus 120. The secondary flat press molding material 40 is molded by pressing the drawing and embossing part 32 to form the inner flat pressing molding part 41 and the outer flat pressing molding part 42 to widen the standard width.

The second flat pressing molding apparatus 120 is formed by flat pressing while passing through the flat pressing upper roller 125 and the flat pressing lower roller 126 installed at regular intervals, and the primary bending drawing and embossing molding material 30 ) To expand the width of the normal specification.

After the primary bending drawing and embossing molding material 30 is molded to the width of the finishing standard, the side surface 12 is formed on both sides of the upper surface 11 in the roll forming machine 130 and the side surface 12 It is molded to have the shape of the seed steel (10) by forming the bent wing (13) inward from both ends of the).

The shape of the seed steel (10) is supplied to the automatic cutting system 140 is cut to a predetermined length and then supplied to the painting and drying apparatus 180 in the lifter conveyor 150 is painted, the mobile conveyor (190) It is molded into the seed steel (10) through the conveyor drying system 200, or is supplied from the lifter conveyor 150 to the press automatic line (160) to improve the rigidity to the required molding on each side, and painting and painting on the lifter conveyor (170) It is supplied to the drying apparatus 180 and painted, and is molded into the seed steel 10 through the conveyor drying system 200 in the mobile conveyor 190.

The primary embossing apparatus 110 is capable of molding and supplying various types of primary curved drawing and embossing molding materials 30 according to designs.

12 is an enlarged front view of a main molding part in a state of forming the present invention into a roller shape, FIG. 13 is an enlarged side view of a main molding part in a state of forming the present invention into a roller shape, and FIG. 14 is a roller of the present invention. The side view of the installation state of the roller with respect to the mold is shown.

The primary bending drawing and embossing forming apparatus 110 installs the power of the motor 114 in the upper transmission 119 and the lower transmission 119a at regular intervals, and respectively, the upper transmission 119 and the lower transmission 119a. After connecting the upper joint 118 and the lower joint 118a in the horizontal direction and installed to rotate the upper rotary shaft 115a and the lower rotary shaft 116a, respectively, the upper rotary shaft (11a) drawing, embossed upper roller ( 115) and the flat pressing upper roller 125 is installed, the lower rotating shaft 116a is provided with an outer lower roller 116 and the pressing lower roller 126, the inner drawing, the embossing part 31 and the outer drawing, embossing The inner part, the embossing part 31 and the outer drawing, and the embossing part 32 are unfolded in the process of forming the part 32 to increase the width to make the primary curved drawing and the embossing molding material 30, and continuously convey the inner part. Like the flat press molding part 41 and the external flat press molding part 42 It is to mold the second flat pressing molding material 40 having a development width of the phase standard.

The drawing, the embossing upper roller 115 is an internal bending drawing, an internal drawing for forming the embossing part 31, an embossing protrusion 115b and an external bending drawing, an external drawing for forming the embossing part 32, an embossing protrusion ( 115c), the drawing, the embossing lower roller 116 has an outer drawing, an inner drawing for forming the embossed portion 32, an embossing groove 116b and an outer drawing, an embossing groove 116c.

15 is a plan view showing a state in which a narrow width material of the present invention is supplied and molded to a standard width, and a primary embossing apparatus (20) for cutting and supplying a material 20 to have a development width narrower than a width of a normal standard. Drawing through the flat pressing in the 110, the emboss portion (31, 32) through the molding of the shape roller through the second step (B), the third step (C) and the fourth step (D) 41, 42) to gradually expand to form a secondary flat pressing molding material 40 is supplied to have a development width of the normal standard.

Hereinafter, with reference to the accompanying drawings the most preferred embodiment of the present invention will be described in detail.

end. Creative Slitting Step

By supplying a coil, the material 20 is slitted to have a development width that is 15 to 30% narrower than that of the normal specification.

I. 1st bending drawing embossing molding material processing step

By supplying the raw material 20 having a narrow development width to the primary bending drawing and embossing forming apparatus 110, the drawing, the embossing upper roller 115 and the drawing, drawing at regular intervals in the embossing lower roller 116, By molding the embossing part (31, 32, 33, 34, 35, 36) to increase the width while reducing the thickness is to process the primary bending drawing, embossed molding material (30).

All. Second Flat Press Molding Material Processing Step

The primary bending drawing and the embossing molding material 30 are supplied to the secondary flat compression molding apparatus 120 to draw and emboss the part 31 at regular intervals from the flat compression upper roller 125 and the flat compression lower roller 125. , 32, 33, 34, 35, 36 are sequentially stretched to compress the flat press-molded parts 41, 42, 43, 44, 45, 46 to form a second flat press molded material having a development width of normal standard (40). Is processed into).

la. Seed steel shape forming step

By supplying the second flat press molding material 40 to the roll forming machine 130, the press forming parts 41, 42, 43, 44, 45, 46 are located inside and on both sides of the upper surface 11. The surface 11 is formed, and it is shape | molded so that it may have the shape of the seed steel 10 by bending the bending blade 13 inwardly from the lower front end of the said side surface 11.

hemp. Auto Cutting Step

After molding to have the shape of the seed steel 10 is supplied to the automatic cutting system 140 to cut to a length of 6 to 10 meters.

bar. Painting and Drying Steps

The cut seed steel 10 is supplied to the painting and drying apparatus 180 through the lift conveyor 150 as it is, or is supplied to the press automatic line 160 to be horizontally through the press composite automatic mold at the main point of the product's shape structure. Through the piercing processing, the plastic processing burring and the plastic processing bead in the longitudinal direction, the lift conveyor is manufactured by improving the wing bending stiffness, product length bending stiffness, product plane longitudinal bending stiffness, and product torsional stiffness to improve the weight and strength. It is supplied to the painting and drying apparatus 180 through 170 to apply the paint to the entire surface and to dry.

four. Conveyor drying stage

After the paint is applied in the painting and drying apparatus 180 is dried and supplied to the elevator drying system 200 from the mobile conveyor 190 is sufficiently dried, the seed steel 10 is completed.

The seed steel of the present invention reduces the spreading width to increase the spreading width through drawing and embossing molding at regular intervals, and then to form a normal spreading width by flat crimping. It is a very useful invention that can be provided by the corner portion of the bend to provide a standard steel of the standard specification and can significantly improve the rigidity by more than 15 to 30% and reduce the material by 15 to 30%.

10: seed steel 11: upper surface
11a: center material thickness short circuit 12: side surface
12a: side material thickness short section 13: bending blades
14: space 15, 15a: upper corner material thickness short circuit
16, 16a: lower corner material thickness short circuit 20: material
30: 1st bending drawing, embossing molding material
31: internal drawing, embossing 32: external drawing, embossing
33: center drawing, embossing 34: primary drawing, embossing
35: 2nd drawing, embossing 36: 3rd drawing, embossing
40: secondary flat pressing molding material 41: internal flat pressing molding
42: outer flat crimping portion 43: center flat crimping portion
44: 1st flat press molding 45: 2nd flat press molding
46: 3rd flat press molding part 100: uncoiler
110: primary bending drawing, embossing forming apparatus
115: drawing, embossing upper roller 115a: upper rotary shaft
115b: internal drawing, embossing 115c: external drawing, embossing
116: drawing, embossing lower roller 116a: lower rotation axis
116b: interior drawing, embossed groove 116c: exterior drawing, embossed groove
117: drawing, embossing strength adjustment rod 118: upper joint
118a: lower joint 119: upper transmission
119a: lower transmission 120: second flat compression molding machine
125: flat crimp upper roller 126: flat crimp lower roller
127: flat pressing strength adjustment rod 130: roll forming machine
140: automatic cutting system 150, 170: lift conveyor
160: automatic press line 180: painting and drying equipment
190: mobile conveyor 200: elevator drying system

Claims (7)

The internal drawing embossing part 31 and the external drawing embossing are provided so as to be symmetrical on both sides with a shape roller by supplying a material 20 having a development width that is 15 to 30% narrower than the standard development width by slotting the thickness of the standard and the coil. The part 32 is molded to form the primary bending drawing and the embossed molding material 30, and the primary bending drawing and the embossing molding material 30 are molded, and the primary bending drawing and the embossing molding material 30 are formed. Press to expand the inner flat press-molded part 41 and the outer flat press-molded part 42 to be molded to have a developed width of the standard to form a second flat press molded material 40, and the second flat press-molded material Bending the side surfaces 12 on both sides of the space 14 by supplying 40 and bending the side surfaces 12 to both sides of the upper surface 11 by roll forming, and to face the ends of the side surfaces 12 inward. Small, characterized in that (13) is formed of a seed steel (10) Shaped roller-type seed beams for reducing the rigidity maintained.
By supplying the material 20 having a development width of 15-30% narrower than the standard development width by slotting the thickness of the standard and the coil, the primary roller is symmetrically on both sides of the center drawing and the embossing part 33 by the shape roller. Drawing the embossing part 34 and the secondary drawing, the embossing part 35 and the tertiary drawing, the embossing part 36 to form a primary bending drawing, an embossing molding material 30, and the primary bending drawing, Flat pressing the embossed molding material 30 to unfold the central flat pressing molded part 43, the first flat pressing molded part 44, the second flat pressing molded part 45 and the third flat pressing molded part 46 The secondary flat press molding material 40 is formed by molding to have a development width of a normal standard, and the secondary flat press molding material 40 is supplied to the side surface 12 on both sides of the upper surface 11 by roll forming. ) And bent to face the end of the side surface 12 inward to form the bent wings 13 on both sides of the space 14. Over it said beams 10 in a roller-like-shaped seed-beams for a material-saving and maintain rigidity which comprises.
The method of claim 1,
The seed steel 10 has an internal drawing on both the inner side of the upper surface 11 and the inner upper both bent portions of the side surface 12, and the embossed portion 31 is formed into the upper corner material thickness step portion 15. Material, characterized in that the outer drawing on both the inner lower side of the side surface 12 and the inner both sides of the bent wing 13, the embossed portion 32 to form the lower corner material thickness step portion 16 Shape roller-type steel for saving and rigidity.
The method of claim 1,
The primary bending drawing and embossing molding material 30 supplies a 2 mm thick material 20 cut into coils with a spreading width of 140 to 170 mm by slotting, so as to be symmetrical on both sides at regular intervals. Shaped roller type seed steel for cutting material and maintaining rigidity, characterized in that the portion 31 and the external drawing, the embossed portion 32 is pressed into a shape roller to be deformed downward to form an uneven shape.
The method of claim 1,
The secondary flat pressing molding material 40, the primary bending drawing, the embossed molding material 30 is in the process of supplying the internal drawing, the embossed portion 31 and the external drawing, the embossed portion 32 Unfolded and molded into a straight shape like the inner flat press molding part 41 and the outer flat press molding part 42 to have a development width of a normal standard, and the inner flat press molding part 41 and the outer flat press molding part 42 ) Is a shape roller type seed steel for material reduction and rigidity maintenance to have a thickness of 10 to 15% thinner than the standard thickness of the material 20.
3. The method of claim 2,
The seed steel 10 has a central drawing in the inner center of the upper surface 11, the embossed portion 33 is formed as a central material thickness step portion (11a), the inner both sides of the upper surface 11 and side surfaces ( The primary drawing and the embossed portion 34 are formed in the upper corner material thickness stepped portion 15a at both inner upper bent portions of the inner portion 12, and the secondary drawing and embossed portion 35 is formed at the inner center of the side surface 12. ) Is formed into the side material thickness stepped portion 12a, and the third lower drawing and the embossed portion 36 are formed on the lower both inner side of the side surface 12 and the inner both sides of the bent wing 13. Shaped roller type seed steel for cutting material and maintaining rigidity, characterized in that it is molded into a thickness step (16a).
A material slitting step of supplying a coil and slitting the material 20 to have a development width that is 15 to 30% narrower than a development width of a normal standard;
By supplying the material 20 to the primary bending drawing, embossing forming apparatus 110, drawing, embossing upper roller 115 and the drawing, embossing lower roller 116 at primary intervals at regular intervals, drawing, embossing Primary bending drawing to process the embossed molding material 30 by increasing the width while reducing the thickness by molding the embossed molding material processing step;
The primary bending drawing and embossing molding material 30 is supplied to the secondary flat pressing molding apparatus 120 to sequentially draw and emboss the drawing at regular intervals from the flat pressing upper roller 125 and the flat pressing lower roller 125. A second flat pressing molded material processing step of processing the second flat pressing molded material 40 having a developed width of a normal standard by compressing the flat pressing molded part by increasing the number of parts;
The second flat press molding material 40 is supplied to the roll forming machine 130 so that the flat press molding part is located therein, and side surfaces 11 are formed on both sides of the upper surface 11, and the side surfaces ( 11) a seed steel shape forming step of forming a shape of the seed steel 10 by bending the bent wing 13 inwardly from the lower front end thereof;
An automatic cutting step of molding to have a shape of the seed steel (10) and then feeding the automatic cutting system (140) to cut it to a length of 10 to 15 meters;
The cut seed steel 10 is directly supplied to the painting and drying apparatus 180 through the lift conveyor 150 and supplied to the painting and drying apparatus 180 through the lift conveyor 170 to apply paint to the entire surface. Painting and drying step after drying; And
A conveyor drying step in which the paint is applied in the painting and drying apparatus 180 and then dried and supplied to the elevator drying system 200 from the mobile conveyor 190 to be sufficiently dried, and then the seed steel 10 is completed; Method for producing a shape roller type seed steel for material reduction and rigidity maintenance, characterized in that consisting of.

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