JPS6320186A - Manufacture of metal grating body - Google Patents

Abstract

PURPOSE:To obtain the title body continuously in a short time inexpensively without waste in materials by performing an electric resistance welding with the pressing of the crossing part of a metal vertical wire and horizontal wire and forming the crossing part of the same face as that of the diameter of a metal wire. CONSTITUTION:A metal vertical wire 1 is placed on the lower part electrode 5 and a horizontal wire 2 is placed by crossing on the vertical wire 1 of the above of the lower part electrode 5. The crossing part 3 of the vertical wire 1 and horizontal wire 2 is pressed and fastened by descending the upper part electrode 7 by an air cylinder 6 and welded by passing the current enabling an electric resistance welding to the crossing part 3, which is then pressed and softened by passing a weak current for long time, and the vertical wire 1 and horizontal wire 2 overlapped in two pieces are formed with the press- fastening upto the same face as that of the wire diameter by the upper part electrode 7 and lower part electrode 5, and the metal grating having the same plane at its vertical wire 1 and horizontal wire 2 is obtd.

Description

Detailed Description of the Invention "Industrial Application Field" The present invention is a method for forming metal wires by arranging them in a grid of vertical lines and horizontal lines and welding them so that the vertical lines and horizontal lines are on the same plane as the wire diameter. By manufacturing it, we can provide a flat grid with a good appearance, and it can be used for indoor furniture, architectural board members, fences,
The present invention relates to a method for manufacturing a full-area lattice body that can be used as an outdoor structural material such as a gate, and as an industrial structural material such as bed floorboards, refrigerator shelf boards, and automobile flooring materials.

``Prior art'' Conventionally, when metal wires are made into a grid, vertical lines and horizontal lines are stacked in multiple rows at regular intervals, and their intersections are joined by electric resistance welding. It forms a lattice-like flat plate, and since there are few fused parts where the vertical lines and horizontal lines intersect, the vertical lines and horizontal lines overlap. Moreover, in order to improve these, there is a method in which a grid body is formed by punching an iron plate in order to provide a flat grid body with no unevenness in vertical and horizontal lines. Furthermore, it was also considered to create a lattice body with no unevenness by casting.

``Problems to be Solved by the Invention'' In the structure described above, in which vertical lines and horizontal lines intersect and are electrically resistance welded, when this is used, for example, as a shelf board, it is difficult to connect objects with only the vertical lines or horizontal lines. It became an unstable thing to support. Furthermore, when used for furniture or wall materials, only vertical and horizontal lines are visible when viewed from the negative side, giving an unnatural appearance and reducing the decorative value by half.

In addition, as an alternative to this, a method in which a steel plate is punched out and made into a lattice body produces a lot of punching slag and is wasted, which is undesirable in terms of resource conservation and increases the cost. do not have. In addition, casting requires large-scale equipment, and the work process is difficult, resulting in high costs.

[Means for Solving the Problems] Therefore, the present invention was proposed to solve the above-mentioned disadvantages.
By moving the horizontal wires together, pressurizing their intersections, welding them with electrical resistance, and forming them so that the intersections of the metal wires are flush with the diameter of the metal wires, the entire wire can be formed flush. , requires less materials, can be made of light leaves, can increase decorative value, can be manufactured in a continuous process, is strong, and can be made at low cost.

Next, the manufacturing method will be explained with reference to the drawings. (1
) is a golden vertical line, which is moved at regular intervals. (2
) are the horizontal lines of the metal, which run together at regular intervals on the vertical lines (II).The intersections (3) are then electrically resistance welded by applying pressure, and at the same time the intersections (3) are made to have the same wire diameter as the metal wire. The manufacturing equipment is as follows: A large number of lower electrodes (5) are placed at regular intervals on a machine base (4), and a number of lower electrodes (5) are placed directly above the lower electrodes (5). , air cylinder (6
) The upper electrode (7), which can be raised and lowered, is mounted downward on the machine base (4). The lower electrode (5) and upper electrode (7) are each wired to a transformer (8), and the next side of the transformer (8) is wired to a control panel (9) that controls the energization time and current. ing.

Example 1 Next, an example will be explained. First, in the first step, a vertical metal line (11) is placed on the lower electrode (5), and a horizontal line (2) is placed on the lower electrode (5).
) is placed on the lower electrode (5) so as to intersect with the vertical line (1), and then in the second step, the intersection part (3) of the vertical line (1) and horizontal line (2) is placed on the air cylinder. In step (6), the upper electrode (7) is lowered and clamped under pressure, and a current capable of electric resistance welding is applied to the intersection part (3) to weld it. Next, in the third step, a weak current is applied for a long time to soften the intersection part (3) under pressure, and the two overlapping vertical lines (1) and horizontal lines (2) are connected to the upper electrode (7).
In this method, the lower electrode (5) is pressed to the same plane as the wire diameter to produce a metal grid body in which the vertical lines (1) and the horizontal lines (2) have the same planar shape.

Example 2 In the second step following the first step, the intersection (3) of the vertical line (1) and the horizontal line (2) is pressed by an air cylinder (6), and the upper electrode (7) and the lower electrode ( 5) The two overlapping vertical wires (1) and horizontal wires (2) are formed to the same plane as the wire diameter by passing a heating and softening current between them, and in the third step, the vertical wires (1) and horizontal wires (2) are welded. A method of manufacturing a metal grid body in which the vertical wires (1) and the horizontal wires (2) have the same plane as the wire diameter by welding the vertical wires (11) and the horizontal wires (2) while giving a possible current and energization time. It is.

The intersection of the vertical line (1) and the horizontal line (2) in Example 1.2 (
3) The step of forming the wire to the same diameter is carried out by applying a weak current and pressure for a long time, and each step is carried out successively or simultaneously.

In addition, as shown in FIGS. 3 and 4, a groove 0 along the metal wire is formed on the clamping surface of the upper electrode (5), and the shape of the groove 0 is adjusted as appropriate. The intersection part (3) can be formed into various shapes by forming the shape into a metal wire. It is also possible to manufacture by moving sequentially.

"Effects of the Invention" The present invention is based on the above-mentioned method, and is capable of producing a metal lattice body in a short time in a continuous process until two overlapping vertical and horizontal metal lines are coplanar with the wire diameter. is a method,
Compared to metal lattice bodies that have the same plane using the conventional casting method or metal plate punching method, there is no waste of material and it can be manufactured inexpensively and continuously in a short time. In addition, the metal lattice body manufactured by the same manufacturing method and having a flat shape is suitable for use as components such as shelf boards, construction boards, and automobile floorboards that require flat characteristics, and is suitable for use as materials that require flatness, such as for use in materials such as shelf boards, building boards, and automobile floorboards. A metal lattice consisting of two overlapping lattices has the same shape from all sides and has high utility value as a material for interior goods, furniture, wall materials, fences, gates, etc. where appearance is important. play.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of an apparatus used in the invention, Fig. 2 is a partially enlarged perspective view, Fig. 3 is a perspective view of an electrode, and Fig. 4 is a perspective view of an apparatus used in the present invention. The figure is a closed front view of the electrode, and FIG. 5 is a perspective view of a product made according to the invention. (1+...-vertical line, (2)...horizontal line, (3)...
・ ・It is an intersection. Figure 2 Figure 4 Figure 3/Do

Claims (1)

[Claims] Vertical and horizontal lines of metal are lined up at regular intervals, and the intersections are electrically resistance welded by applying pressure, and the intersections of the vertical and horizontal lines are formed to have the same diameter as the metal wire. A method of manufacturing a metal lattice body characterized by the following.