JPS6353898B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a method for manufacturing a gutter cover.

Conventionally, this type of gutter cover has a large number of lattice plates arranged at equal intervals within a frame of a certain length that matches the width of the groove, and is fixed together by welding. It takes a lot of man-hours to drill holes, weld, etc.
There are disadvantages to mass production. Moreover, increasing the strength significantly increases the weight, which poses a number of problems, such as disadvantages in handling and transportation. For this reason, there has recently been a strong demand in the industry for a lightweight and strong gutter cover that can automate manufacturing operations, but currently such a gutter cover does not exist.

The present invention focuses on cutting and forming a large number of reinforcing walls within the area of one band-shaped metal plate, and provides a novel method for manufacturing a groove cover that satisfies the above requirements and can significantly save labor in manufacturing operations. It is something to do.

The present invention will be specifically described below based on embodiments shown in the drawings.

To carry out the manufacturing method of the present invention, a punching press and a cutting and bending press device are used to prepare a strip-shaped metal plate having a width slightly wider than the width of the side gutter as the main material. After applying a punching press to the band-shaped metal plate 1 and punching four holes 2 in two rows with lattice spacing within its surface (Fig. 1), the metal plate 1 was moved by the gap between the holes. The 2 parts of the punched holes are made to correspond to a cutting press device, and a U-shaped cutting line 3 is made to surround each of the two punched holes 2 located in the width direction (FIG. 2). At this time, the downstream portion of the punched hole 2 is located in the punching press device of the previous step and is punched. Then,
The metal plate 1 is transferred in the same way, and the cutting lines 3 and 3 portions are made to correspond to the bending press machine, and the portions each containing two punch holes 2 and surrounded by the cutting lines 3 and 3 are defined as a bending line 31 between both ends of the line 3. The reinforcing walls 4, 4 are bent downward (Fig. 3), and at this time, the holes 2a, 2 in the previous step are
Similar cutting lines 3a, 3a are made in the a part, and punch holes 2b, 2b are made in the two previous steps, and the metal plate 1 is intermittently moved to a certain pitch, and each press device performs each step. By doing this, as shown in FIGS. 4 and 5, cut and raised reinforcing walls 4 having punched holes 2, lattice holes 5 formed by the reinforcing walls, and adjacent lattice holes 5, A groove lid substrate 7 having lattice plate portions 6 between 5 is obtained.

Next, a channel form material 8 having a cross-sectional shape that matches the punching hole 2 is prepared in advance, and after this is inserted into the punching hole 2 of each reinforcing wall 4 (FIG. 6), the channel form material 8 is inserted between the adjacent reinforcing walls 4, 4. Opposing groove walls 81, 8 of frame members 8, 8
1 interval (Fig. 8), and the frame material 8 is attached to the groove lid substrate 7.
fixed and strengthened. After that, as shown in FIG. 9, frame members 9, 9 are arranged along both edges of the lower surface of the substrate 7, and the horizontal upper surface of the frame member 9 is placed on the lower surface of the substrate 7.
The vertical surfaces of the reinforcing walls 4 are welded and fixed to the end faces of each reinforcing wall 4 to complete the process.

As described above, the present invention forms reinforcing walls cut and raised at equal intervals in the longitudinal direction of a band-shaped metal plate, reinforcing the reinforcing walls by inserting a frame material into the hole in each reinforcing wall, and reinforcing the reinforcing walls along both sides of the lower surface. Since the gutter cover is completed by fixing the materials by welding, it is possible to automate manufacturing compared to conventional products that involve fitting and welding multiple lattice plates into the enclosure frame, making it cheaper to mass produce. Can be supplied. However, since the lattice plate part and each reinforcing wall are made of a single metal plate, sufficient strength can be obtained with a thin material, and since it is press-formed, reinforcing ribs can be easily attached to the necessary locations, etc. It has the effect of achieving the purpose.

[Brief explanation of the drawing]

The drawings are manufacturing process diagrams, and Fig. 1 is a plan view of the band-shaped metal plate after perforation, Fig. 2 is a plan view after the cutting process, Fig. 3 is a plan view after the bending process, and Fig. 4 is a plan view of the band-shaped metal plate after drilling. A perspective view of the lid substrate, FIG. 5 is a sectional view taken along the line A-A in FIG. A cross-sectional view taken along the line B-B, FIG. 8 is a cross-sectional view after the frame material is fixed to the board,
FIG. 9 is a sectional view of the finished product. 1... Band-shaped metal plate, 2... Hole punching, 3... Cutting line, 4... Reinforcement wall, 8... Frame material, 9... Frame material.

Claims (1)

[Claims] 1. A drilling process in which punching holes are drilled at equal intervals in the longitudinal direction of a strip metal plate, a cutting process in which the punched holes are surrounded and cut in a U-shape along the longitudinal direction at equal intervals to the punched hole intervals, and A forming process in which the reinforced part is bent downward between both ends of the wire to form a reinforcing wall, a reinforcing process in which channel formwork is inserted and fixed into the hole in each reinforcing wall, and a metal plate is formed. A method for manufacturing a groove cover, characterized by continuously performing a welding process for welding and fixing frame materials along both edges of the lower surface of the groove cover.