JPH04220177A - Manufacture of draining basket for sink - Google Patents

Abstract

PURPOSE:To reduce the manufacturing cost of the draining basket by joining superposed parts of both edges of the draining basket made of a stainless steel net sheet by seamless welding and joining a ring main body to a bottom sheet by spot welding. CONSTITUTION:In manufacturing the draining basket for the sink, the stainless steel net sheet is rounded cylindrically to form a cylindrical body 2 and the superposed parts of both edges of the net sheet are subjected to seamless welding. A ring body 3 is then fitted into the inside of an opening edge of one end of the cylindrical body 2, the bottom sheet 4 is fitted to an opening edge of the other end from the outside and these are fixed on each other by spot welding. The safe and firm draining basket where sharp edges, burrs, etc., are hardly exposed on both inside and outside can be thus easily manufactured.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method of manufacturing a stainless steel draining basket for receiving dirt attached to the exhaust port of a sink.

[Conventional technology and its problems] In conventional stainless steel draining baskets assembled by spot welding, burrs and sharp edges formed on the edges of the material during cutting remain exposed on the inner or outer surface of the basket. There were many problems, such as people getting cuts when they put their hands inside the basket to throw away garbage, or garbage getting caught in the burrs and making it difficult to remove, which was unsanitary.

[Means for Solving the Problems] The method of manufacturing a sink drainer basket of the present invention is intended to solve the above problems, and involves rolling a rectangular stainless steel net plate into a cylindrical shape and polymerizing both edges thereof. A cylindrical body is formed by seamlessly welding this thick part, and a bottomed cylindrical body with a flange integrally formed on the outer periphery of the upper opening edge is formed by drawing the stainless steel plate, and the bottomed cylindrical body is The ring body is divided into two parts by cutting horizontally at the cylindrical body, into a ring body having the flange and a shallow dish-shaped bottom member, and the ring body is fitted into the opening edge of one end of the cylindrical body and fixed by spot welding, The bottom member is further enlarged in diameter and provided with a large number of through holes, and then fitted onto the opening edge of the other end of the cylindrical body and fixed thereto by spot welding.

[Operation] Seamless welding does not expose burrs or sharp edges at the overlapping parts of the stainless steel mesh plates. In addition, by fitting the ring body inside the cylinder body and fitting the bottom member outside the cylinder body, it is possible to manufacture a sturdy draining basket that does not easily lose its shape. Since it is shielded by fitting the materials, there are fewer parts that require finishing such as deburring, making manufacturing easier.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows a stainless steel mesh plate 1, which is a rectangular stainless steel plate with a thickness of about 0.4 mm to 0.5 mm, with a large number of slit-shaped cuts leaving a predetermined width on both sides of the plate. It is a so-called lath net-like material in which a large number of diamond-shaped through holes are formed by applying a tensile load to the stainless steel plate in the width direction and expanding it.The mesh plate 1 is as shown in FIG. The cylindrical body 2 is formed by rolling it into a cylindrical shape, overlapping both end edges 1a and 1b, and seamlessly welding the overlapping portion. Seamless welding, as is well known, is a method in which the overlapping portion is sandwiched between a pair of rotatably provided rollers and a high current is applied between both rollers, thereby welding both end edges 1a and 1b in a straight line. Unlike spot welding, both edges 1a and 1b can be welded in succession, so any burrs or sharp edges on the edges will be caught between the rollers and welded together. On the other hand, FIG. 3 shows the manufacturing process of the ring body 3 and the bottom member 4. That is, first, as shown in A and B, the stainless steel plate 5 is deep drawn using a press to form the bottomed cylinder 6. Further, as shown in C and D, the flange 7 is reinforced by bending the peripheral edge of the flange 7 integrally formed on the outer periphery of the upper opening of the bottomed cylinder 6 downward. Then, as shown in E, the bottomed cylindrical body 6 is cut horizontally at the body part using a roll slit, and is divided into two parts: a ring body 3 having the flange 7 and a shallow dish-shaped bottom member 4. Then, the bottom member 4 is further press-worked to expand its diameter until its inner diameter matches the outer diameter of the cylindrical body 2, and a large number of through holes 8 are punched in the bottom surface. The ring body 3 thus manufactured is fitted into the opening edge of one end of the cylindrical body 2 and fixed by spot welding 9. In addition, the bottom member 4 is a cylindrical body 2
It is fitted onto the opening edge of the other end and fixed by spot welding 10. Note that 11 indicates a half-ring-shaped handle having both ends pivoted inside the ring body 3. In the draining basket manufactured in this way, the cylindrical body 2 is formed by seamlessly welding both edges 1a and 1b of the mesh plate 1, so that sharp edges, burrs, etc. of the mesh plate 1 are prevented from forming on the inner and outer surfaces of the cylindrical body 2. It doesn't stick out. Furthermore, since the ring body 3 is fitted inside and the bottom member 4 is fitted onto the opening edges of both ends of the cylindrical body 2, burrs etc. on the opening edges of both ends of the cylindrical body 2 are not exposed on the surface, making it safe.
The cylindrical body 2 can be reinforced to make a sturdy draining basket.

[Effects of the Invention] As described above, according to the method of manufacturing a drainer basket for a sink of the present invention, the necessary finishing treatments such as deburring for the cylindrical body can be reduced, so manufacturing costs can be reduced, and it can be made sturdy and safe. This is useful because it provides a usable drain basket.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Figure 1 is a front view of a stainless steel net plate, Figure 2 is a perspective view of a cylindrical body, and Figure 3 is a perspective view of a cylindrical body.
The figure is a longitudinal sectional view showing the manufacturing process, and FIG. 4 is a longitudinal sectional view of the draining basket. DESCRIPTION OF SYMBOLS 1... Stainless steel mesh plate, 1a, 1b... Both ends, 2... Cylindrical body, 3... Ring body, 4... Bottom member, 5... Stainless steel plate, 6... Bottomed cylinder, 7... Flange, 8... Through hole.

Claims (1)

[Claims] A rectangular stainless steel net plate is rolled into a cylindrical shape, its edges are overlapped, and the thick parts are seamlessly welded to form a cylindrical body.By drawing the stainless steel plate, a flange is formed around the outer periphery of the upper opening. A bottomed cylindrical body is formed integrally, and the bottomed cylindrical body is horizontally cut at the body portion to be divided into two into a ring body having the flange and a shallow dish-shaped bottom member. is fitted internally into the opening edge of the cylindrical body at one end and fixed by spot welding, and the bottom member is further expanded in diameter and provided with a large number of through holes, and then fitted externally into the opening rim at the other end of the cylindrical body. A method of manufacturing a draining basket for a sink, characterized in that it is fixed by spot welding.