JPH0671452A - Production of functional material - Google Patents

Abstract

PURPOSE:To continuously supply a functional material from welding line to working line by controlling the lap margin to be welded by means of guiding the inner edge of coil material with a guide roller at the inlet side of welding proess and slitting the edge of coil material with a slitter so as to position for welding. CONSTITUTION:A plate coil material 1 and sheet coil material 2 are passed on the line at the same time and in parallel. A guide roller 3 guides the inner edge of coil materials to form a small lap part in the line longitudinal direction. A slitter 5 cuts the outer edge of the coil material 1, 2. A roller 4 presses the lapped part on top and bottom, to be welded by a rotating electrode 9. A press machine 10 presses to a product shape and a cutter 12 cuts off a product part 14. This method precisely executes positioning of the lap margin of the coil materials 1, 2 and executes positioning of the welding part at press line, etc., on the reference position, that is the outside edge part cut by the slitter 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to pass a thick coil material and a thin coil material on the same line at the same time. The present invention relates to a method for manufacturing a functional material in which functional materials are continuously overlapped with each other by slightly superimposing them on each other and pressurizing and energizing the overlapped long overlap margin with a rotating electrode to reduce the swelling of the joint.

[0002]

2. Description of the Related Art The term "functional material" as used herein refers to a metal sheet having properties such that the thickness and the material are different from the middle of one metal plate. For example, as a means of reducing the weight of panel parts for passenger cars, it is natural to reduce the weight of the product if the parts that do not require strength are thin and the parts that require strength are thick. If such functional materials are continuously produced and connected to product processing in the post process, a large cost reduction can be realized as a whole.

For the purpose of producing such functional materials having different plate thicknesses, laser welding is currently being studied in various fields, and some have been put into practical use. The main reason why laser welding is considered is that it can be sent directly to the pressing process because there is little thermal strain on the weld and the rise of the weld is small. However, since laser welding requires high butt precision, it is possible to butt weld with a cut plate that has been cut to a specified size in a fixed state, but to continuously weld two coil materials in the longitudinal direction. There are various difficulties in the technology to do so, and it has not been developed yet.

[0004]

The problem to be solved by the present invention is to realize continuous welding, which is impossible by laser welding, by mash seam welding, and to produce a continuous welding line and product processing in the post process. When a line (for example, a press line) is directly connected, the functional material welded to the press line in the subsequent process is continuously threaded. At this time, the welded portion of the functional material needs to be decided and passed through a specific position of the press line (to be exact, a line press type).

In the continuous welding process, a guide roller disposed on the inlet side of the welding process is used as a guide for the coil material to be welded, and the inside of each of the two coil materials is guided to overlap the welded portion. Regulate. However, there is no means for guiding the outer end of the coil material and positioning the weld joint on the inlet and outlet sides of the welding. Further, the method of guiding the outer end of the welded coil material with a roller or the like is not effective when the plate thickness is thin.

[0006]

SUMMARY OF THE INVENTION The present invention has solved the above-mentioned problems by providing two coil materials having different plate thicknesses and materials.
The plates are passed on the same line, the inner edges of the coil materials are slightly overlapped in the width direction, and the overlapped part is pressed and energized by the rotary electrode of the seam welder to continuously mash. In a method of manufacturing a long material having different plate thickness and material in the plate width direction by seam welding, a guide roller arranged on the inlet side of the welding step guides the inner edge of the coil material. The step of controlling the overlap margin to be welded, and the slitters arranged between the position approximately corresponding to the guide roller and the exit side of the welder are used to slid the outer end portions of the coil material or one end portion thereof. And a welding positioning step of welding.

[0007]

According to the system of the present invention, a plurality of coil materials having different plate thicknesses and materials are passed through the same line at the same time, the inner edges of the coil materials are overlapped in the width direction, and the overlapping margin is rotated. Mash seam welding is performed continuously by accurately guiding and passing between the electrodes. That is, the reference end face by the guide roller and the slitter can be determined at the same time, and continuous welding, which cannot be achieved by conventional laser welding, can be realized by mash seam welding. Therefore, it is possible to continuously supply functional materials having different plate thicknesses and materials in the plate width direction to the seam automatic welding line, and improve the efficiency of the continuous production of parts that take advantage of the characteristics of the functional materials.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of line equipment for carrying out the method of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic plan view showing the concept of a line facility for manufacturing functional materials, and FIG. 2 is a schematic side view of the line facility with a slitter omitted.

In the figure, the arrow indicates the line traveling direction of the coil material. 1 is a thick plate coil material drawn out from the coil on the line. Reference numeral 2 is a thin plate coil material drawn from the other coil. 3 is a guide roller, which guides in the longitudinal direction from a direction intersecting at right angles with the inner edges of the coil materials 1 and 2 drawn out to the entrance side of the welding process, and linearly regulates the inner edges. It is possible to form a slight overlapping portion infinitely in the width direction of the plate. Reference numeral 4 denotes a pair of upper and lower pressing rollers for pressing the coil surface while rotationally driving the overlapped overlap margin at the same speed so that the overlapped margin is located on substantially the same plane before welding.

Numerals 5 and 5 are slitters. As shown in Figure 1,
The slitters correspond to the guide rollers 3 and 3, respectively, and are arranged outside the coil material on an extension line that intersects with the rotation axis of the guide roller in a direction substantially at right angles. Each of the slitters 5 and 5 has a pair of rotary blades 6 and 6 arranged so as to face each other vertically, and the outer end portion of the coil material is sandwiched between the rotary blades 6 and 6 from above and below, and each of the motors 7 and 6 is sandwiched. While rotating and rotating, the both ends of the coil are cut and aligned, and the joint portion of the coil material to be fed to the welding process is positioned. The small-width coil s cut off by the slitter 5 is successively cut into fine pieces or wound into a coil and treated as scrap. A mash seam welding machine 8 sandwiches and welds a lap joint portion of a coil material guided between a pair of upper and lower rotating electrodes 9, 9.

If an example of the post-process is shown, 10 is a slitter 5.
This is a press machine that presses the coil material drawn out through the process into a desired product shape, and has a die 11 having concave and convex portions at the top and bottom. Reference numeral 12 is a cutter having upper and lower blades 13 for separating the press-molded product portion 14.

FIG. 3 shows the operation of the method of the present invention having the above configuration.
~ It demonstrates based on the operation | movement figure of FIG. Now, when the thick coil material 1 and the thin coil material 2 are drawn out from two coils having different plate thicknesses and are passed in parallel on the line at the same time, the guide rollers 3 and 3 cause the inner edges of the coil material in the longitudinal direction. The guides are laid out in parallel with each other, and a slight overlapping portion is formed in the longitudinal direction of the line. At the same time, the coil material 1 and the coil material 2 are cut at the outer ends or one end of the coil material by the slitters 5 while the inner edges are guided (FIG. 3). As a result, the slitting of the coil material on one side or both sides of the coil material is completely performed in the line direction with respect to the subsequent welding line. Further, by slitting both ends of the coil material, the width of the plate can be set to the specified dimension.

That is, the overlap margin of the coil material can be accurately positioned in the welding process of the functional material, and in the press line, this functional material is welded to the die of the press line with reference to the outer end cut and aligned by the slitter. Positioning of parts is possible. That is, the press line can exert the characteristics of the parts produced by using the functional material.

The overlapping parts of the coil members positioned by the slitters 5 and 5 are pressed by the pressing roller 4 from above and below. This positions the welded joint on a generally flat surface (Fig. 4). The coil material 1 and the coil material 2 pulled out from the pressing roller 4 are sent to the welding process, where the energization is carried out while the slight overlap margin is passing between the rotating electrodes 9, 9. -Seam welded (Fig. 5).

Hereinafter, a joint portion to be welded, which is formed by slightly overlapping the inner edges of the coil material in the width direction while simultaneously passing the coil materials having different plate thicknesses and materials on the same line as described above, will be described. It is possible to continuously bond the functional materials with a rotary electrode to manufacture a wide functional material, and continuously pass the functional material accurately positioned on the processing line of the subsequent process.

In this embodiment, the slitter 5 is arranged on the entry side of the welding process, that is, on the line side corresponding to the guide roller, but the invention is not limited to this. For example, the welding process and the pressing process. The same effect can be obtained by disposing it in the middle.

[0017]

As described above, according to the manufacturing method of the present invention, the inner edge of the coil material having different plate thickness and material is guided by the two guide rollers, and the outer edge of the coil material is By slitting with a slitter, the overlap margin of the coil material can be accurately positioned in the welding process of the functional material, and at the same time, in the next process such as the press line, the outer edge of the functional material cut by the slitter is used as a reference. As a result, the welded part can be positioned. Therefore, it is possible to continuously supply functional materials with different thicknesses and materials in the width direction from the seam automatic welding line to the material processing line. Therefore, it is possible to efficiently perform the continuous production of parts that take advantage of the characteristics of functional materials. You can

[Brief description of drawings]

FIG. 1 is a schematic plan view of a line facility for manufacturing a functional material according to the method of the present invention.

FIG. 2 is a schematic side view of line equipment according to the present invention.

FIG. 3 is an explanatory diagram of an operation by a guide roller and a slitter according to the present invention.

FIG. 4 is an operation explanatory view of the press roller according to the present invention.

FIG. 5 is an operation explanatory view of the seam welding machine of the present invention.

[Explanation of symbols]

 1 thick plate coil material 2 thin plate coil material 3 guide roller 4 holding roller 5 slitter 6 rotary blade 7 motor 8 mash seam welder 9 rotary electrode 10 press machine 11 die 12 cutter 13 up and down Blade 14 Product Department

Claims (1)

[Claims] 1. Two coil materials having different plate thicknesses, materials, etc. are passed on the same line, the inner edges of the coil materials are slightly overlapped with each other in the plate width direction, and the overlapping portion is formed into a sheet. -In the manufacturing method of a long material having different plate thickness, material, etc. in the plate width direction obtained by continuously conducting mash seam welding by pressurizing and energizing with a rotating electrode of a welding machine,
A step of guiding the inner edge of the coil material by a guide roller arranged on the entry side of the welding step to regulate the overlap margin to be welded; and a step of the welding machine from a position approximately corresponding to the guide roller. A method of manufacturing a functional material, comprising: a welding positioning step of slitting outer end portions of a coil material or one end portion of the coil material with a slitter arranged to extend to an outlet side.