JPS5922610B2 - Metal mesh manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides, for example, a method for manufacturing metal mesh, which is widely used as a material for bag bodies such as backpacks and accessory cases;
Specifically, element bodies each having at least three bent legs are arranged vertically and horizontally in parallel on a plane with a predetermined interval with the legs facing upward, and adjacent element bodies are The present invention relates to a method of manufacturing a metal mesh, in which the legs are bent while embracing metal rings fitted onto each of the chests of the body, and the element bodies are connected via the rings.

As a method for manufacturing metal sheets in mass production, there is a method proposed in Japanese Patent Application Laid-open No. 141476/1983.

In this device, elements arranged in a plane and rings arranged in the same manner as the adjacent chests of the elements are attached to sheets, and the rings are fitted onto the chests to attach the chests. The ring is protruded from the surface of the sheet to which the ring is attached, and the ring is held by bending its legs, and the sheet is peeled off and removed by making the adhesive sheet water-soluble and dissolving it, or by collapsing the sheet with high-pressure water. It manufactures sheets.

However, it is extremely difficult to completely peel off the adhesive sheet and its adhesive, and in particular, the sheet for ring attachment is surrounded by the ring and the bent legs, so it cannot be completely peeled off. It is more difficult to remove and may reduce product value.

Moreover, it requires a process for attaching and peeling off the sheet, as well as a process for drying the metal mesh after the sheet has been treated with water, and equipment for that purpose, and the water that has been treated to remove the soil and sheet is polluted. This has the drawback of causing secondary pollution, or requiring extensive water treatment equipment and processes to deal with it, making the overall cost extremely high.

An object of the present invention is to provide a method that can eliminate the above-mentioned drawbacks all at once.

Next, the present invention will be explained based on illustrative drawings.

A metal ring 1 is formed by punching, and a base body 2 has four legs a erected at the corners by punching and bending.
A large number of each element body 2 is formed, and the element bodies 2 are arranged vertically and horizontally in parallel on a plane at predetermined intervals with their legs a facing upward, and the legs a group of four adjacent element bodies 2 are As shown in FIG. 1, a metal mesh is formed by fitting the ring 1 onto the outside and bending each of its legs a radially outward while enclosing the ring 1. To form the metal mesh, as shown in FIG. 2, a wide thin metal plate 3 is transferred in one direction, and from the upper side in the direction of transfer, a pilot pin 4 is inserted into the hole formed by the hole punching pin 4. A pin 5 and a pin 6 for punching out a hole with a diameter slightly larger than the hole punched by the pin 4 substantially concentrically with the punched hole are provided at predetermined intervals in the width direction of the metal plate 3, and the metal ring 1 is formed. A push-up pin 8 is provided at the lower part of the large-diameter pin 6 to fit the ring 1 into its punched hole by the urging of urethane rubber or a spring r, as shown in FIG. Next, the ring 1 is held by a metal plate 3 punched horizontally and vertically at predetermined intervals, and the plate 3 is wound up into a roll and stored. (This is called an End Wrestling.) Next, as shown in FIG. 4, the roll A metal plate 3 having a shape is fed out, the front and back of the plate 3 are turned over, and in the path before turning over, a large number of the base bodies 2 are
The legs a of the element body 2 are inserted into the center hole of the ring 1 from above by the action of the brush 11 which rotates in the opposite direction to the feeding direction of the plate material 3. The element bodies 2 are set in the ring 1 in a state in which they are arranged vertically and horizontally in parallel on a plane with a predetermined interval by artificially compensating for the lack of penetration as needed. Then, the pitch feed device 12 that acts on the blank 2 on the path after the metal plate 3 is turned over intermittently transports the plate 3 at a predetermined pitch, and when the transfer is stopped, the ring 1 is removed from the plate by the ring removal pin 13. (by pushing down and separating) the plate material 3 is collected upward by a roller 14 with protrusions.

Then, the connected element body 2 is transferred along the main body 15 via the ring 1 and the leg a inserted into its center hole, and the metal plate 3 is separated upward from the leg a through a transfer path. At this time, the leg a is removed from the ring 1 by a press device 16 synchronized with the ring removal pin 13, and a first leg bending pin 1T, a second leg bending pin 18, and a shaping fitting 19 having a flat pressing surface. The metal mesh is successively bent in the radial direction to form a sheet-like metal mesh. Furthermore, without winding up the metal plate 3 holding the ring 1, it is directly passed through the chute 9.
A, 9B, the pitch feeding device 12 forms the ring 1 and holds it on the plate 3, separates the ring 1 with the element body 2 set from the plate 3, and bends the legs. It may also be possible to synchronize with the transfer and have it performed when the transfer is stopped.

FIG. 5 shows a modification of the means for setting the leg a of the element body 2 into the center hole of the ring 1 held by the plate member 3 from above.

That is, gates 22 and 23 are arranged in a gently sloped chute 21 connected to a steeply sloped chute 20 so that the gap from the chute surface becomes smaller as the slope decreases, allowing the element body 2 to pass through. By applying vibration to 20 and 21, the piled-up element bodies 2 are arranged in a line to form a steeply inclined chute 20.
A jig 25 equipped with a large number of comb teeth 24 at intervals corresponding to a predetermined spacing between the elements 2 in parallel is disposed obliquely at the lower part of the steeply inclined chute 20. The element body 2 is supplied to the upper part of the body, and the posture of the element body 2 is corrected by the first rotating brush 26 so that the legs a of the element body 2 are directed downward, and the element body 2 is made to straddle the comb teeth 24. They are arranged in parallel.

Then, the element body 2 that has not been corrected to the normal posture is moved to the first and second shoots 28 and 29 by the second rotating brush 2r.
At the same time, the base body 2 in the normal posture is transported by the air nozzle 30, and the ring 1 is held at the lower part of the comb teeth 24 at the end of the transport in the same direction as the transport direction. At the same time, the element body 2 is fed out in a predetermined manner by a roller 31 with a protrusion synchronized with the conveyance, and its legs a are held in the ring 1.The subsequent steps are performed according to FIG. 4. According to
This involves continuously molding sheet-shaped metal mesh.

Furthermore, as the element body 2 having the leg a, there are three legs a,
The object of the present invention is to have at least three or more legs a, such as five, six, eight, etc. However, in the case of a four-leg structure, the punching position of the ring 1 can be taken into consideration. The element body 2 can be formed by punching using the punching plate material 3, which is preferable because the yield is good.

As detailed above, since the method according to the present invention sets the elements at predetermined intervals on the ring itself, it can solve all of the drawbacks of the above-mentioned method using an adhesive sheet at once. Since the ring is held by the punched plate material, the ring 1 can be easily and quickly placed in a predetermined position by the punching process itself without going through any special process. The combined effect of shortening the work process and eliminating the use of ultimately unnecessary sheets has made it possible to significantly reduce overall costs.

[Brief explanation of the drawing]

Fig. 1 is a partial perspective view of the metal mesh showing the ring and the metal body in an enlarged view, Fig. 2 is a sectional view showing the ring being punched out and held on a plate, and Fig. 3 is a portion of the plate showing the ring being held. 4 is a plan view, FIG. 4 is a side view of a series of metal mesh manufacturing apparatuses, and FIG. 5 is a side view of a modified example. 1...Metal ring, 2...Metal body, 3...Metal plate material, 24...Comb teeth, 25...Comb teeth shaped jig, a... leg.

Claims (1)

[Scope of Claims] 1. A metal surface having at least three bent legs arranged vertically and horizontally in parallel on a plane with the legs facing upward at a predetermined interval, and A method for manufacturing a metal mesh comprising bending the legs while embracing a metal ring fitted onto each leg group of an adjacent element body, and connecting the element bodies via the rings, the method comprising: A punched and molded metal ring is held by a metal plate that has been punched horizontally and vertically at predetermined intervals, and the legs of the element body are inserted into the center hole of the ring from above to form the element body into a ring. Arranged vertically and horizontally in parallel on a plane with a predetermined interval on the top,
bending the path to turn the metal plate upside down, separating the ring from the metal plate, and bending the leg outward in the radial direction of the ring with the metal plate detached from the leg; A method for manufacturing a metal mesh, characterized by continuously connecting element bodies through the ring. 2. The elements are arranged in parallel on a large number of comb teeth of a comb-tooth jig with their legs facing downward, and the legs of these elements are inserted into the center hole of the ring held by the metal plate. The method according to claim 1, characterized in that the entry is made from above.