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KR-20260066239-A - Apparatus for Bending Horizontal Wires of Wire Mesh at Spot Welding Parts and Wire Mesh with Horizontal Wires bended at Spot Welding Parts

KR20260066239AKR 20260066239 AKR20260066239 AKR 20260066239AKR-20260066239-A

Abstract

The present invention discloses a welded wire mesh in which a curved portion (121) is formed in the welded portion of a horizontal wire (12), and the remaining horizontal wire (12), excluding the curved portion (121), is located on the same plane as a vertical wire (11). The device of the present invention for forming a bend (121) in the welded portion of a horizontal wire (12) is installed following a conventional welded wire mesh manufacturing device and is composed of a lower support plate (30) installed so that one welded wire mesh is positioned thereon, and an upper pressure plate (40) that applies pressure from the top downward so that a bend (121) is formed simultaneously in all welded portions of the horizontal wire (12) of the welded wire mesh (10) placed on the lower support plate (30). A pair of pressure rods (41) are installed for each vertical wire (11) on the upper pressure plate (40), and when a vertical wire (11) is positioned between the pair of pressure rods (41) and the upper pressure plate (40) is pressed over the lower support plate (30), all horizontal wires (12) welded to the vertical wire (11) are bent simultaneously in the welded portion.

Inventors

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Assignees

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Dates

Publication Date
20260512
Application Date
20241104

Claims (8)

  1. A welded wire mesh (10) is manufactured by spot welding multiple horizontal wires (12) arranged at regular intervals on multiple vertical wires (11) arranged at regular intervals at each contact point, wherein a curved portion (121) is formed in the welded portion of the horizontal wires (12), and the remaining horizontal wires (12), excluding the curved portion (121), are located on the same plane as the vertical wires (11).
  2. A welded wire mesh (10) according to claim 1, wherein the vertical wire (11) and the horizontal wire (12) have a diameter in the range of 2.0 to 8.0 mm, and the vertical wire (11) and the horizontal wire (12) are welded in a grid structure, and the grid has a side length in the range of 50 to 150 mm, a width of 1,500 to 2,400 mm, and a length of 2 to 4 m.
  3. A device for forming a bend (121) in the weld of a horizontal wire (12), characterized by being installed after a conventional welded wire mesh manufacturing device, comprising a lower support plate (30) installed so that the manufactured welded wire meshes are positioned one by one, and an upper pressure plate (40) that applies pressure from the top downward so that a bend (121) is formed simultaneously in all welded parts of the horizontal wire (12) of the welded wire mesh (10) placed on the lower support plate (30).
  4. A device for forming a bend (121) in the weld of a horizontal wire (12), characterized in that, in the third paragraph, the upper pressure plate (40) has a pair of pressure rods (41) installed for each vertical wire (11), and a vertical wire (11) is positioned between the pair of pressure rods (41) so that when the upper pressure plate (40) is pressed over the lower support plate (30), all horizontal wires (12) welded to the vertical wire (11) simultaneously bend at the weld.
  5. A device for forming a curved portion (121) in the welded portion of a horizontal wire (12), characterized in that, in claim 4, two slits (43) penetrating the upper pressure plate (40) are formed so as to adjust the number and spacing of the pressure rods (41).
  6. A device for forming a curved portion (121) in the welded portion of a horizontal wire (12), characterized in that, in claim 5, the pressure rod (41) has two vertically formed pressure rod supports (411) extended, the pressure rod supports (411) move through the slit (43), and a screw is formed at the end of the pressure rod supports (411) and fixed by a nut (412).
  7. A device for forming a curved portion (121) in the welded portion of a horizontal wire (12), characterized in that, in any one of claims 3 to 6, the lower support plate (30) is installed to be fixed in place of the welded wire mesh manufacturing device, and the upper pressure plate (40) moves up and down periodically by means of a mechanical means.
  8. A device for forming a curved portion (121) in the welded portion of a horizontal wire (12), characterized in that, in claim 7, the mechanical means is a hydraulic mechanism.

Description

Apparatus for Bending Horizontal Wires of Wire Mesh at Spot Welding Parts and Wire Mesh with Horizontal Wires Bended at Spot Welding Parts The present invention relates to a welded wire mesh installed in concrete when pouring concrete at construction sites, such as road construction, building floors of various structures, and parking lot floors. More specifically, the present invention relates to a welded wire mesh having a grid-like structure formed by spot welding horizontal and vertical wires. Welded wire mesh is a grid-shaped wire mesh installed by being inserted into concrete to improve its strength during concrete pouring at construction sites, such as for road construction, building floors, and parking lot floors. Welded wire mesh is manufactured to form a grid structure by arranging vertical wires at regular intervals and horizontal wires on top of them at regular intervals, then spot welding the points of contact between the two wires. Wires with a diameter of about 5 mm are mainly used, but wires with smaller or larger diameters are also used, typically ranging from 2.0 to 8.0 mm. Welded wire mesh typically has a width of 1,500 to 2,400 mm and a length of 2 to 4 m. The horizontal and vertical wires are arranged at regular intervals to form a grid structure, with the grid size ranging from approximately 50 to 150 mm on each side. Welded wire mesh is manufactured using a widely used automated device, in which multiple vertical wires are supplied and moved at a constant speed on the same plane at regular intervals. Horizontal wires are placed one by one perpendicularly onto the moving vertical wires and spot welded at the contact points. Then, horizontal wires are continuously placed and welded at regular intervals in sequence. Finally, the vertical wires are cut simultaneously to a predetermined length to produce a single sheet of welded wire mesh. This process is repeated continuously, and the operator loads the cut welded wire meshes one by one in sequence to obtain the required quantity. FIG. 1 is a schematic perspective view of a welded wire mesh (10) produced by spot welding multiple horizontal wires (12) arranged at regular intervals onto multiple vertical wires (11) arranged at regular intervals at each contact point. FIG. 2 is a photograph showing multiple welded wire meshes (10) of FIG. 1 stacked together. Welded wire mesh, which is produced by cutting it into individual sheets, is usually stacked by two workers holding it by hand from both sides until the required number is reached, and then finally packaged. Typically, 100 to 300 sheets of welded wire mesh are stacked and then tied together with wire or steel before packaging. When welded wire mesh manufactured as described above is stacked sequentially, it is stacked as shown in the cross-section of FIG. 3. In the welded wire mesh located at the bottom layer, a vertical wire mesh (11) is positioned on the bottom surface, and a horizontal wire mesh (12) is positioned on top of it. As shown in FIG. 3, when four welded wire meshes are stacked, the total thickness is 8t when the diameter of the wires (11, 12) is t. Since this stacking method occupies a large volume, it becomes a factor that increases logistics costs. To solve this problem, an improved method is to stack the manufactured welded wire mesh as shown in FIG. 4. In FIG. 4, one welded wire mesh is stacked upright, and the welded wire mesh stacked on top is stacked upside down. By doing this, the horizontal wires (12) of adjacent wire meshes are positioned on the same plane, thereby occupying a smaller volume. When four welded wire meshes are stacked as in FIG. 4, if the diameter of the wires (11, 12) is t, the total stacked thickness becomes 6t. When wire meshes are stacked by being alternately turned upside down in this way, the stacked volume can be reduced by 25% compared to stacking them all as they are without turning them upside down. However, to stack them in this manner, there is the difficulty that two workers must alternately turn the wire meshes upside down. All welded wire meshes to date use this method to reduce logistics costs by reducing the stacked volume, even though it leads to increased labor costs and entails labor difficulties. The inventors have developed a welded wire mesh having a new structure that can reduce the loading volume even without two workers taking turns flipping and loading the welded wire mesh produced from a conventional welded wire mesh manufacturing device, and have also developed a device capable of manufacturing the welded wire mesh of the present invention. FIG. 1 is a schematic perspective view of a conventional welded wire mesh (10) made by spot welding multiple horizontal wires (12) arranged at regular intervals on multiple vertical wires (11) arranged at regular intervals at each contact point. Figure 2 is a photograph showing a stack of multiple welded wire meshes (10) of Figure 1. FIG. 3 is a cross-sectional view of four welded wire