KR20080066524A - Floating ball, manufacturing methood of the same and float valve system using the same - Google Patents

Abstract

Provided are a metallic float which is manufactured by fabricating a float through a deep drawing process and punching a joint between a connecting ring and a bottom of the float through a press process such that the connecting ring is joined with the float by elongation of a metallic material itself, a manufacturing method of the metallic float, and a buoyancy type water level valve system comprising the metallic float. A manufacturing method of a metallic float comprises: a float member forming step(S1) of forming a flat metal sheet by deep drawing to fabricate a pair of float members; a step(S2) of punching two through holes into a middle part of a thin steel sheet and bending the middle part to form a bent part in which the two through holes are formed oppositely to each other, and bending both sides of the bent part to form wing elements to fabricate a connecting ring; a step(S3) of joining the connecting ring with an outer bottom of one of the float elements, and allowing a punch type top mold to press a joint which is an overlapped portion between a bottom of the float member and the wing elements into a hole of a bottom mold such that the bottom of the float member and the wing elements are joined with each other by elongation of the joint itself and thickness difference of the joint; and a step(S4) of fabricating a sealed float by butt welding the wedges through seam welding in a state that edges of the pair of float members come abuts with each other.

Description

Floating ball, manufacturing methood of the same and float valve system using the same}

1 is a flow chart of a method for manufacturing a metal float according to the present invention.

Figure 2 is a perspective view showing one embodiment of a buoyancy water level valve device according to the present invention.

Figure 3 is a working cross-sectional perspective view showing a step of producing a pair of subspheres in accordance with the present invention.

Figure 4 is a perspective view showing one embodiment of a connecting ring according to the present invention.

5 is a working flow diagram showing the bonding of the one segment and the connecting ring according to the present invention.

Figure 6 is a working perspective view showing the step of bonding a pair of subspheres in accordance with the present invention.

Figure 7 is a block diagram showing a spherical junction spliced in accordance with the present invention.

8 is a rear view of FIG. 7.

** Description of reference numerals in the drawings **

1: water supply pipe 2: induction pipe

10: fitting 20: ball valve

30: connecting bar

101: open side 102: border

110, 120: subpart 200: connection ring

210: through hole 220: curved portion

230: wing

a: bottom surface of the float

b: wing flank in contact with the bottom surface of the float

The present invention relates to a buckle configured in a buoyancy water level valve device for automatically adjusting the water level of a water tank or a water tank, a manufacturing method thereof, and a buoyancy water level valve device configured using the above ball. In detail, each pair of sub-pieces provided in pairs are joined together by seam welding to make a sub-ball, and the bottom part of the sub-ball is joined to a connecting ring formed by bending, but the splicing is performed by punching the joint unlike the conventional spot welding method. It is characterized by constituting the projection of the upper and lower light by the thickness deformation by the elongation of the metal material.

In general, the water tank for storing the drinking water for a long time, the water tank is automatically adjusted by the buoyancy level valve device. Figure 2 shows an embodiment of the buoyancy water level valve device according to the present invention with reference to this with reference to a simple configuration of the buoyancy water level valve device as follows.

As shown in FIG. 2, the buoyancy water level valve device includes a buckle 10, a connecting bar 30, a connecting ring 200 for hinge coupling the buckle 10 and the connecting bar 30, and a ball. It consists of a valve 20, a water supply pipe (1), an induction pipe (2) and the connection bar 30 is coupled to the connection ring 200 is configured.

In the water level valve device as described above, when the water level in the water tank is lowered, the float 10 floating on the surface is lowered by its own weight, and thus the connection bar 30 is lowered by the connection bar 30 connected to the float 10. Opening and closing the flow path opening and closing device of the valve 20 connected with the. On the contrary, when the water level in the water tank is increased, the connecting bar 30 is raised by the buoyancy of the buoy 10 and accordingly the opening and closing device of the valve 20 connected to the connecting bar 30 is rotated to block the flow path. .

In this way, the float is the most important component when manufacturing a buoyant water level valve device. Generally, a float such as expanded polystyrene (Styrofoam) or an injection molded plastic resin has been used. The metal ball such as the situation is used.

In particular, the metal ball is usually produced by separating the normal spherical shape in half to make the upper hemisphere and the lower hemisphere separately and combine them with each other to produce a closed float.

형상의 금속재 재질로 구성되는 것이 일반적이며, 상기의 연결고리와 부구 마닥면의 접합은 스폿 용접으로 행하였다.On the other hand, the connecting ring 200 is joined to the bottom surface of the float shown in Figure 2 has a cross section as shown in FIG.

It is common to consist of a metal material of shape, and the joining of the said connection ring and the mouth ball surface was performed by spot welding.

However, the spot welding is a cumbersome process such that a large current flows to the welded portion and is joined at a high temperature generated at this time, so that the determination of the strength of the current must be different depending on the material. In addition, spot welding has a short service life due to corrosion and welding defects due to oxidation of the corresponding welding portion, and there is a problem in that an undercut portion is formed due to over welding.

An object of the present invention, in order to solve the above problems, the buoy and the connection ring to be produced by deep drawing, the joint is bonded to the lower surface of the buoy, the bonding is different from the elongation of the material body by the pressing process, unlike the conventional spot welding It is an object of the present invention to provide a metal float, a manufacturing method thereof, and a buoyant water level valve device configured to form the float.

형상과 같은 연결고리를 제작하는 단계와, 3) 상기 부구편 중 선택되는 어느 하나의 부구편 바닥 외면에 상기 연결고리를 접합하되, 상기 접합은 상기 선택된 부구편 바닥 외면에 상기 연결고리의 날개편을 맞댄 후 함몰된 홀이 형성된 하부금형 상에 위치시킨 다음 펀치 형의 상부금형이 상기 하부금형의 홀에 상기 접합부(부구편 바닥면과 날개편이 겹쳐진 부분)를 밀어 넣어 상기 접합부의 자체 신률과 그 두께 차이에 의해 접혀 접합되도록 하는 일 부구편과 연결고리의 접합단계와, 4) 상기 한 쌍의 부구편 각각을 서로의 테두리가 접하도록 맞대어 접합된 밀폐된 부구를 제작하되, 상기 접합은 심 용접법(seam welding)으로 이루어지는 부구의 접합 단계를 포함하는 금속재 부구의 제작 방법을 제공한다.In order to achieve the above object, the present invention, in the manufacturing method of the metal buoy, 1) by forming a flat metal plate by deep drawing processing, one open surface and the periphery of the open surface protruding edge Sub-piece forming step for producing any one of the sub-segment selected from a cylindrical, square or hemispherical shape is provided with a pair, and 2) punching the two through holes spaced apart from each other in the middle portion of the thin steel sheet The bending portion is bent so that the two through-holes face each other, and both sides of the curved portion is formed by bending the blade piece

Producing a connecting ring as a shape, and 3) bonding the connecting ring to the bottom outer surface of any one of the selected sub-segment selected from the sub-segment, the joining wing piece of the connection ring on the bottom outer surface of the selected sub-segment And then placed on the lower mold where the recessed hole is formed, and then the upper mold of the punch type pushes the joint part (the part where the bottom part of the part and the wing piece overlap) into the hole of the lower mold, Bonding step of one sub-segment and the connecting ring to be folded and bonded by the difference in thickness, and 4) to produce a hermetically sealed sub-ball joined to each other so that the edge of the pair of sub-segment contact each other, the joining seam welding method Provided is a method of manufacturing a metal float including a step of joining a float formed by seam welding.

Meanwhile, a pair of sub-segments selected from a cylinder, a cylinder, or a hemispherical shape having a protruding edge on the periphery is joined to each other so as to correspond to each of the edges, and is formed as a sealed container having a hollow part, but at least one on the bottom outer surface. A mouth which has the above-mentioned protrusion part formed; A metal hook comprising: a hook portion having a curved portion formed by bending an intermediate side of the plate and a recessed portion extending to both sides of the curved portion, and having a depression fitted to correspond to the protrusion of the float; To provide.

In addition, the protruding portion of the buckle and the depression of the connecting ring is inserted into a bonded shape provides a metal buckle characterized in that the shape of the upper and lower light.

And, the metal material sphere; A ball valve configured inside the water tank and installed between the water supply pipe and the induction pipe; One end is connected to the opening and closing device of the ball valve and the other end is provided with a water level valve device using a metal buckle consisting of a connecting bar pin coupled to the connection ring of the metal buckle.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Therefore, in the following description of the present invention, if it is determined that the detailed description of the related known technology or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, in the case where descriptions according to the relationship between the elements of the present invention described above are overlapped, the description thereof will be omitted.

1 is a flow chart of a method of manufacturing a metal float according to the present invention, Figure 2 is a perspective view showing an embodiment of a buoyancy level valve device according to the present invention.

3 is a cross-sectional perspective view showing a step of manufacturing a pair of sub-spheres according to the present invention, Figure 4 is a perspective view showing an embodiment of the connecting ring according to the present invention, Figure 5 is one sub-segment according to the present invention and This is a work flow diagram showing the joining of the links.

Figure 6 is a working perspective view showing a step of joining a pair of subspheres in accordance with the present invention, Figures 7 to 8 are each a schematic view and a rear view showing a spherical spliced joint according to the present invention.

The present invention provides a buckle, a method for manufacturing the buckle, and a buoyancy water level valve device formed by constituting the buckle.

First, referring to FIGS. 1 to 6, the method of manufacturing the metal floats is described in detail as follows.

As shown in Figure 1, the method for manufacturing a metal sub-ball is a step (S1) for producing a pair of sub-segments, the step (S2) for producing a connecting ring, the step of joining one sub-piece and the connecting ring (S3) And a step (S4) of joining the pair of subspheres.

Step (S1) of manufacturing a pair of sub-segment is formed by molding a flat metal plate material by deep drawing processing. As shown in FIG. 3, the deep drawing is a method of pressing the die formed in the lower portion and the metal sheet placed on the upper surface of the die to tension the metal sheet.

In more detail, it is preferable to form a seamless hollow container by pressing a plate-like material into a die with a punch, but if the desired depth is not drawn by drawing the punch once, it is preferable to draw it in several circuits. Do.

The shape of the hollow container is preferably to be made of any one selected from the cylindrical, angular or hemispherical one protruding edge 102 is provided on one open surface 101 and the peripheral portion of the open surface (101). .

The manufactured hollow container is made as a pair of pieces (110, 120), and then produced in a pair, and then to form a closed float 10 against the pair of sub-pieces (110, 120). On the other hand, the pair of sub-segment (110, 120) material, that is, the material of the metal plate material selected in the processing of the sub-segment should have a constant elongation of the material and considering the corrosion resistance to the internal flow of the fluid stainless steel It is preferable to select.

Next, in the step (S2) of manufacturing the connecting ring shown in FIG. 4, first, two through holes 210 spaced apart from each other in the middle portion of the thin steel sheet are punched out. In this case, the punching process may be a general blanking process, and the material of the steel sheet is preferably selected from stainless steel having the same material as the above-described subpieces 110 and 120.

Then, the middle portion of the steel sheet is bent to form the curved portion 220 so that the two through holes 210 face each other. Next, the blade pieces 230 are folded to both sides of the curved portion 220.

형상으로 이루어지도록 한다.The connecting ring 200 has a cross section as shown in FIG.

To be shaped.

Next, the step (S3) of joining the one sub-segment 120 and the connecting ring 200 selected from any one of the pair of sub-segments (110, 120) produced. In particular, the joining method 200 is bonded to the bottom bottom of the selected sub-segment 120. In particular, the joining method includes four processes in more detail, as shown in FIG.

First, as shown in I of FIG. 5, the wing pieces 230 and b of the connecting ring 200 are brought into contact with the bottom outer surface a of the selected sub-segment 120. Hereinafter, the portion where the sub-segment bottom surface (a) and the wing piece (b) overlap is referred to as a joint portion (a + b). The junction part (a + b) is positioned on the lower mold in which the recessed hole is formed.

Next, as shown in FIG. 5, the upper mold of the punch mold pushes the junction a + b into the hole of the lower mold.

Subsequently, as shown in III, IV, and FIG. 7 of FIG. 5, the junction part a + b is folded by its elongation and its thickness difference, and the shape is formed by the protrusion 210 of the upper and lower light beams. Is complete.

The joined portion a + b, that is, the protrusion 210 of the sub-narrow light, has the advantage that the process is simplified as compared with the conventional spot welding operation, resulting in a lower processing cost.

On the other hand, as shown in FIG. 7, the protrusion 210 formed by coupling the abutment portion a + b is protruded downward from the bottom surface of the one-piece sphere 120, on the contrary, the abutment portion a + b is one. It is also possible to form a depression recessed in the bottom surface of the sub-segment 120. This may be formed by pressing the upper mold of the punch type by inverting the upper and lower sides so that the joining part is positioned under the wing piece a in the joining part of FIG. 5.

Subsequently, in the step (S4) of joining the pair of subspheres 110 and 120, the pair of subspheres are bonded to each other such that the edges 102 of the pair contact each other. In particular, the joining is preferably made by seam welding, and the seam welding is a kind of overlap resistance welding, which uses a roller electrode (not shown) to energize and pressurize continuously, and the like. It refers to a welding method for joining.

On the other hand, the present invention provides a metal float and a water level valve device using the same and the configuration thereof is as follows.

First, as shown in FIG. 7 or FIG. 8, the shape of the metal subsphere may include a pair of sub-segments 110 and 120 selected from a cylinder, a cylinder, or a hemispherical shape having a protruding edge at a periphery thereof. Corresponding to each other so as to correspond to each other made of a closed container having a hollow portion.

In particular, at least one protrusion (part formed on the a-plate material in the partial enlarged view of FIG. 7) is formed on the outer surface of the closed filler metal bottom. The protruding portion may be configured by pressing the inner bottom surface of the sub-segment positioned at the lower end of the sub-segment by punching or the like.

On the other hand, the connecting ring 200 is fitted to correspond to the protrusion is formed and the detailed shape is a curved portion 220 is formed by the intermediate side of the plate is bent, and extending to both sides of the curved portion 220 and the protrusion of the buckle A wing piece 230 having a recessed portion (part molded into the b-plate material in the partial enlarged view of 7) to be fitted in correspondence is formed.

The connecting ring is fitted to the lower surface of the spherical fitting, and in particular, the shape of the protrusion and the recessed portion of the connecting ring 200 is inserted into the shape of the upper and lower light (part enlarged view of Figure 7) to achieve a firm coupling force. It is desirable to.

Meanwhile, as shown in FIG. 2, the water level valve device may be configured by using the metal buckle 10 to which the connection ring 200 is bonded, and the configuration thereof is as follows.

The water level valve device is configured in the water tank and is installed between the water supply pipe 1 and the induction pipe 2, and one end is connected to the opening and closing device of the ball valve 20, the other end is the metal material It is to be made of a connection bar 30 is connected to the coupling ring 200 of the sub-ball 10 by a pin coupling or a hinge coupling. The metal fittings 10 are preferably manufactured by the manufacturing method described above.

In addition, the connecting ring 200 is preferably formed with a through hole 210 for the connection with the other end of the connecting bar 30, the operation method of the water level valve device is the same as the conventional Omit it.

Although the above has been described above with reference to a preferred embodiment according to the present invention, the technical idea of the present invention is not limited thereto, and each component of the present invention is changed or modified within the technical scope of the present invention for achieving the same object and effect. Could be.

 Spheres made of a connecting ring according to the present invention does not contaminate the internal fluid, such as tanks because the joint is not corroded compared to the connecting ring by conventional spot welding, the manufacturing process is simple due to the production time and shortening There is an advantage of providing a wealth of excellent price economy.

Claims (5)

In the manufacturing method of the metal material sphere, 1) The flat metal sheet is formed by deep drawing processing, and one open side and one side portion selected from a cylinder, a cylinder, or a hemispherical in which a protruding edge is provided on the periphery of the open side are paired. Sub-part forming step to produce; 2) punching two through-holes spaced apart from each other in the middle of the thin steel sheet and bending the middle to form a bent portion in which the two through-holes face each other, and bent wings on both sides of the bent portion to form a cross section. this

Manufacturing a connecting ring such as a shape; 3) The connecting ring is bonded to the bottom outer surface of any one of the selected sub-segment, wherein the joining is a lower mold shape formed with a recessed hole after facing the wing piece of the connecting ring on the bottom outer surface of the selected sub-segment A sub-segment in which the upper mold of the punch mold is pushed into the hole of the lower mold to be folded and joined by the elongation of the joint and the difference in thickness thereof by pushing the joint part (the part where the sub-piece bottom surface and the wing piece overlap). Bonding step of connecting with; 4) A method of manufacturing a metal float including the step of joining each of the pair of sub-segment to be joined to each other so that the edges of each other contacted, the joining is made by seam welding (seam welding). A pair of sub-segments selected from a cylinder, a cylinder, or a hemisphere having a protruding edge on the periphery is joined to each other so as to correspond to each of the edges, and is formed as a closed container having a hollow portion, and at least one protrusion on the bottom outer surface thereof. Spheres are formed; And a wing piece having a curved portion formed by bending a plate-shaped intermediate side and a depression extending to both sides of the curved portion and fitted in correspondence with the projecting portion of the curved portion, wherein the connecting portion is fitted to the lower surface of the curved groove. The method of claim 2, Metal fittings, characterized in that the shape of the projection and the hook portion of the hook is inserted and bonded to the upper and lower light. A pair of sub-segments selected from a cylinder, a cylinder, or a hemisphere having a protruding edge on the periphery is joined to each other so as to correspond to each of the edges. Spheres are formed; A metal buckle formed with a bent portion formed by bending an intermediate side of the plate and a wing piece extending to both sides of the bent portion and having a depression fitted to correspond to the protrusion of the buckle, and fitted to the lower surface of the buckle; A ball valve configured inside the water tank and installed between the water supply pipe and the induction pipe; One end is connected to the opening and closing device of the ball valve and the other end of the water level valve device using a metal floats consisting of a connecting bar pin coupled to the connecting ring of the metal floats. The method of claim 4, wherein the metal material sphere, The water level valve device using a metal float, characterized in that the shape of the protrusion and the recessed portion of the connecting ring is joined to the shape of the upper and lower light.

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