KR102266503B1 - Apparatus for forming float - Google Patents

Abstract

The present invention relates to a device for forming a buoy, and more specifically, to a device for forming a buoy, capable of forming a buoy using steam. The device for forming a buoy according to the present invention replaces conventional styrofoam that causes environmental pollution and destruction of the ecosystem and uses a foamed molded body made of PE and steam to manufacture a buoy or a float.

Description

Buoy forming device {Apparatus for forming float}

The present invention relates to a float forming apparatus, and more particularly, to a float forming apparatus capable of forming a float forming apparatus using steam.

Generally, buoys used in aquaculture include buoys molded with Styrofoam and buoys molded with synthetic resin by blow molding, among which Styrofoam buoys are widely used.

Conventional Styrofoam buoys are used by winding binding lines on both sides of a cylindrical shape, and since a lot of force is applied to the bending grooves, when the buoy is used for a long time, it is easy to be damaged or deformed by waves, tides and tidal waves. In addition, since the surface of Styrofoam is not smooth, the impact to seawater such as waves is transmitted as it is, and thus there is a disadvantage that it is easily damaged or deformed. In addition, when the buoy is damaged, it causes pollution of the ocean by the broken fragments, and it is difficult to use even if the bending groove is even slightly damaged, so it is loaded on the shore or a yard or disposed of as waste.

In order to solve these drawbacks, a buoy formed by blow molding with a body in which a space is formed in the inner diameter is used. This synthetic resin buoy is weak in durability, which is a disadvantage of the styrofoam buoy. The problem has been corrected, but it has the disadvantage of being expensive in production, and the buoys are easily broken and broken when working with tools used for installation or collection, such as hooks or tongs, etc. It is also slow and has the disadvantage of lowering the efficiency of the work.

In order to solve these problems, a buoy for a cage farm has been proposed as Utility Model Registration No. 20-0186723 in the prior art, which includes a body formed by cutting a pipe having a predetermined diameter to a predetermined length, and Styrofoam or It consists of a filling material such as foamed synthetic resin and a lid sealing the openings at both ends of the body, but it is manufactured by inserting a pipe-shaped body on the outside of the filling material, and screwing the lid to both ends of the body It is difficult and cost is increased, and there are problems such as a decrease in sealing property.

In addition, the improved buoy for fish and shellfish culture proposed in Patent Registration No. 10-0615435 includes a pair of semi-cylindrical buguo covers and Styrofoam built in the bugu cover, A coupling band is formed at positions opposite to each other, and a plurality of binding protrusions and a coupling hole are formed in the both coupling bands to be coupled to each other so that the coupling protrusion is inserted, but this is performed by the coupling protrusion and the coupling hole. Since the coupling is made with bolts as well, it is structurally complicated and the sealing property is also deteriorated, and it takes a lot of work time, such as having to attach both the bulb covers after injection, and many work processes. As a result, there is a problem such as an increase in cost.

Republic of Korea Registered Utility Model No. 20-0186723 Republic of Korea Patent Registration No. 10-0615435

The present invention is to solve the conventional problems as described above, replacing the conventional styrofoam that causes environmental pollution and destruction of the ecosystem, using a foamed molded body formed of PE and using steam to manufacture a buoy or a buoy An object of the present invention is to provide a molding apparatus.

In the buoyancy molding apparatus according to the present invention for achieving the above object, a lower forming space for forming a buoy is formed in a downward direction on one side, and a lower steam space in which steam is supplied to the periphery of the lower forming space therein. an additionally formed lower mold; It is disposed on the upper part of the lower mold, and an upper molding space for forming a buoy together with the lower molding space is formed upwardly on one side facing the lower mold, and steam is formed inside the upper molding space around the upper molding space. an upper mold formed with an upper steam space to be supplied; and a steam supply unit for respectively supplying steam to the lower steam space of the lower mold and the upper steam space of the upper mold to heat the lower mold and the upper mold, and recovering the supplied steam. do.

A main heat transfer unit installed in the lower mold and the upper mold, wherein the main heat transfer unit includes a lower heat transfer plate buried between the lower molding space and the lower steam space, and one side of the lower heat transfer plate At least one lower heat transfer rod connected and the other side extends into the lower steam space, an upper heat transfer plate buried between the upper molding space and the upper steam space, one side is connected to the upper heat transfer plate, and the other side It characterized in that it comprises at least one or more upper heat transfer rods extending into the upper steam space.

The lower molding space and the upper molding space are disposed in close contact with each other, and a flow path is formed to allow steam supplied from the steam supply unit to pass therethrough, and the heat of the steam passing through the flow path is transferred to the lower molding space and the lower molding space. It characterized in that it further comprises a; sub-heating unit for transferring to the molding space formed by the upper molding space.

The sub heat transfer unit has a first flow path provided therein to allow steam to pass therethrough, extends in a zigzag pattern along the inner circumferential surface of the lower forming space, and is formed in a semicircular shape corresponding to the lower forming space. and an upper heat transfer pipe having a second flow path provided therein so that steam can pass through, extending in a zigzag pattern along the inner circumferential surface of the upper forming space, and formed in a semicircular shape corresponding to the upper forming space. characterized in that

The sub-heat transfer unit further comprises a lower cover plate closely disposed on the upper portion of the lower heat transfer pipe to surround the lower heat transfer pipe, and an upper cover plate disposed in close contact with the lower portion of the upper heat transfer pipe to surround the upper heat transfer pipe. characterized.

The buoy molding apparatus according to the present invention can replace the conventional Styrofoam that causes environmental pollution and destruction of the ecosystem, and use a foamed molded body formed of PE and use steam to manufacture a buoy or a buoy.

1 and 2 are views showing an embodiment of a buoyancy molding apparatus according to the present invention.
3 is a view showing another embodiment of the bugu molding apparatus according to the present invention.
4 and 5 are views showing another embodiment of the bugu forming apparatus according to the present invention.

Hereinafter, with reference to the accompanying drawings, a detailed description will be given of an apparatus for forming a buoyancy according to a preferred embodiment of the present invention.

1 and 2 show a buoyancy molding apparatus according to the present invention. Referring to FIGS. 1 and 2 , the buoyancy molding apparatus according to the present invention includes a lower mold 100 , an upper mold 200 , and a steam supply unit 300 .

The lower mold 100 has a semi-circular lower molding space 110 with an open upper part for molding a buoyancy ball on one side of the upper part, and is formed inside, and steam is supplied around the lower molding space 110 therein. A lower steam space 120 is formed.

At least one protrusion is formed on the inner circumferential surface of the lower molding space 110 to form an inlet groove drawn into the buoy so that a string or rope can be fastened or tied to the middle part of the buoy. The protrusion extends in an arc shape along the circumferential direction of the inner circumferential surface of the lower molding space 110 .

The lower steam space 120 is formed to be partitioned from the lower forming space 110 around the lower forming space 110, and may be formed as a single space, but as shown in the figure, a plurality of divided It can also be partitioned into a partitioned space.

In addition, guide rods 130 for guiding the vertical movement or elevating operation of the upper mold 200 to be described later are installed at the four corners of the lower mold 100 to extend upward by a predetermined length, respectively.

The upper mold 200 is disposed on the upper part of the lower mold 100 , and has a semicircular upper molding with an open lower part for forming a floating ball together with a lower molding space 110 on a lower side facing the lower mold 100 . The space 210 is formed to be drawn in upward, and the upper steam space 220 to which steam is supplied around the upper molding space 210 is formed therein.

At least one protrusion is formed on the inner circumferential surface of the upper molding space 210 to form an inlet groove drawn into the buoy so that a string or rope can be fastened or tied to the middle part of the buoy. The protrusion extends in an arc shape along the circumferential direction of the inner circumferential surface of the upper molding space 210 , and is formed at a position corresponding to the position of the protrusion formed in the lower mold 100 .

The upper steam space 220 is formed to be partitioned from the upper forming space 210 around the upper forming space 210, and may be formed as a single space, but as shown in the figure, a plurality of divided It can also be partitioned into a partitioned space.

In addition, guide holes 230 are formed vertically through the four corners of the upper mold 200 so that the guide rod 130 provided in the lower mold 100 can pass therethrough. The upper mold 200 is guided in the vertical direction by the guide rod 130 , and is precisely positioned at a designated position of the lower mold 100 to precisely mold the lower mold 100 .

When the lower mold 100 and the upper mold 200 are molded, the lower molding space 110 and the upper molding space 210 form a closed space corresponding to the size of the final buoy to be molded, and this The primary molded foam 10, which is made of primary foaming and molding with PE, is put into the sealed space, and steam is supplied to the lower steam space 120 and the upper steam space 220 to form the lower mold 100 and When the upper mold 200 is heated, the foam 10 is foamed to form a buoyancy. The primary molded foam 10 is formed by first foaming using PE as shown, then processing the foamed molded article into a sheet form, and rolling it into a cylindrical shape.

The steam supply unit 300 is the lower steam space 120 of the lower mold 100 and the upper steam space 220 of the upper mold 200 so as to heat the lower mold 100 and the upper mold 200. Each of the steam is supplied, and the supplied steam is recovered.

The steam supply unit 300 includes a steam generator 310 for generating steam, a steam supply line for supplying the steam generated from the steam generator 310 to the lower mold 100 and the upper mold 200, and the lower mold 100. and a steam recovery line for recovering steam that has lost heat after being supplied to the upper mold 200 .

The steam supply line has a main supply pipe 321 at one end connected to the steam generator 310, and a lower supply pipe 322 branching from the other end of the main supply pipe 321 to supply steam to one side of the lower mold 100. And , is branched from the other end of the main supply pipe 321 and is composed of an upper supply pipe 323 that supplies steam to one side of the upper mold 200, and the lower supply pipe 322 and the upper supply pipe 323 are each divided into a plurality of divided spaces. It is connected to a branch supply pipe 324 extending into the divided space to supply steam to the lower steam space 120 and the upper steam space 220 partitioned by the . In addition, the steam supply unit 300 further includes a supply valve for controlling the supply of steam, the supply valve being the main supply pipe 321 or the lower supply pipe 322 and the upper supply pipe 323 or the branch supply pipe 324, respectively. can be installed on

One side of the steam recovery line is connected to a plurality of divided spaces forming the lower steam space 120 of the lower mold 100 and the upper steam space 220 of the upper mold 200, respectively, and the other side is connected to the lower mold. (100) A plurality of branch return pipes 331 extended to the outside, and the other side of the branch return pipes 331 are connected to the steam to deliver the steam recovered through the branch return pipe 331 to the steam generator 310 and a main return pipe 332 connected to the generator 310 . The steam return line may further include a recovery valve, and the recovery valve may be installed in each branch return pipe 331 or the main return pipe 332 .

On the other hand, the bugu molding apparatus according to the present invention is installed in the lower mold 100 and the upper mold 200 to efficiently heat the closed molding space formed by the lower molding space 110 and the upper molding space 210 . It further includes a main heat transfer unit for transmitting.

Referring to FIG. 3 , the main heat transfer unit includes a lower heat transfer plate 411 , a lower heat transfer rod 412 , an upper heat transfer plate 421 , and an upper heat transfer rod 422 .

The lower heat transfer plate 411 is embedded between the lower molding space 110 and the lower steam space 120 , extends along the longitudinal direction of the lower mold 100 , and is formed of a metal material having high heat transfer characteristics. The lower heat transfer plate 411 is formed in a plate shape bent in an arc shape to correspond to the circumferential shape of the lower molding space 110 , and the lower molding space 110 so as to effectively transfer heat to the lower molding space 110 . It is preferable to be buried as close as possible to the inner circumferential surface of the The lower heat plate 411 may be configured in plurality, and each lower heat plate 411 may be disposed at a position corresponding to the divided space divided into a plurality.

One side of the lower heat transfer rod 412 is connected to the lower heat transfer plate 411 , and the other side is installed to extend into the lower steam space 120 , and at least one is provided. The lower heat transfer rod 412 is preferably formed of a metal material having high heat transfer characteristics, similarly to the lower heat transfer plate 411 .

The upper heat transfer plate 421 is embedded between the upper molding space 210 and the upper steam space 220 , extends along the longitudinal direction of the upper mold 200 , and is formed of a metal material having high heat transfer characteristics. The upper heat transfer plate 421 is formed in a plate shape bent in an arc shape to correspond to the circumferential shape of the upper molding space 210, and the upper molding space 210 so as to effectively transfer heat to the upper molding space 210. It is preferable to be buried as close as possible to the inner circumferential surface of the The upper heat plate 421 may be configured in plurality, and each upper heat plate 421 may be disposed at a position corresponding to the divided space divided into a plurality.

One side of the upper heat transfer rod 422 is connected to the upper heat transfer plate 421 , and the other side is installed to extend into the upper steam space 220 , and at least one is provided. The upper heat transfer rod 422 is preferably formed of a metal material having high heat transfer characteristics, similarly to the upper heat transfer plate 421 .

In this embodiment, the lower heat transfer rod 412 and the upper heat transfer rod 422 of the main heat transfer unit are rod-shaped with a circular cross section, but unlike this, the heat transfer effect is applied to the lower heat transfer plate 411 and the upper heat transfer plate 421. Of course, it can be formed in a strip or plate shape extending long along the longitudinal direction of the lower mold 100 and the upper mold 200 to increase the height.

In addition, the bugu molding apparatus according to the present invention includes a sub-heating unit for efficiently transferring heat to the closed molding space formed by the lower molding space 110 and the upper molding space 210 separately from the main heat transfer unit. can do.

4 and 5 , the sub-heating unit is closely disposed on the inner peripheral surfaces of the lower molding space 110 and the upper molding space 210 , respectively, so that the steam supplied from the steam supply unit 300 can pass therethrough. A flow path is formed, and the heat of steam passing through the flow path is transferred to the lower molding space part 110 and the upper molding space part 210, and the lower heat transfer pipe 511, the lower cover plate 512, and the upper part It includes a heat transfer pipe 521 and an upper cover plate 522 .

The lower heat pipe 511 is provided with a first flow path therein so that steam can pass through, and extends in a zigzag pattern along the inner circumferential surface of the lower molding space 110 , and is a semicircle corresponding to the lower molding space 110 . formed in the shape The lower heat transfer pipe 511 is disposed so that its lower part is in close contact with the inner circumferential surface of the lower molding space 110 . One end of the lower heat transfer pipe 511 is connected to the steam supply line so that steam supplied from the steam supply unit 300 can be injected into the first flow path, and the other end passes through the first flow path of the lower heat transfer pipe 511 . It is connected to the steam recovery line so that one steam can be discharged.

The lower cover plate 512 has a bottom surface disposed in close contact with the upper portion of the lower heat transfer pipe 511 so as to surround the lower heat transfer pipe 511 , and is formed in a semicircular shape corresponding to the shape of the lower molding space 110 .

In addition, flanges are formed at both ends of the lower cover plate 512 in the width direction to prevent the lower heat pipe 511 from being exposed to the lower molding space 110 , and the flange is inserted into the lower mold 100 . and a lower seating groove extending outwardly from the edge side of the lower molding space 110 so as to be seated and drawn in downwardly.

The shape and shape of the foam 10 injected between the lower mold 100 and the upper mold 200 are determined by the upper cover plate 522 and the lower cover plate 512 to be described later. Accordingly, at least one or more protrusions as described above may be further formed on the inner circumferential surface of the lower cover plate 512 .

The upper heat pipe 521 has a second flow path provided therein so that steam can pass through, and extends in a zigzag pattern along the inner circumferential surface of the upper molding space 210 , and is a semicircle corresponding to the upper molding space 210 . formed in the shape The upper heat pipe 521 is disposed so that its upper portion is in close contact with the inner peripheral surface of the upper molding space 210 . One end of the upper heat transfer pipe 521 is connected to the steam supply line so that steam supplied from the steam supply unit 300 can be injected into the second flow path, and the other end passes through the second flow path of the upper heat transfer pipe 521 . It is connected to the steam recovery line so that one steam can be discharged.

The upper cover plate 522 has an upper surface disposed in close contact with the lower portion of the upper heat transfer pipe 521 so as to surround the upper heat transfer pipe 521 , and is formed in a semicircular shape corresponding to the shape of the upper molding space 210 .

In addition, flanges are formed at both ends of the upper cover plate 522 in the width direction to prevent the upper heat pipe 521 from being exposed to the upper molding space 210 , and the flange is inserted into the upper mold 200 . and an upper seating groove extending outwardly from the edge side of the upper molding space 210 and retracted downward so as to be seated.

The shape and shape of the foam 10 injected between the lower mold 100 and the upper mold 200 are determined by the lower cover plate 512 and the upper cover plate 522 . Accordingly, at least one protrusion as described above may be further formed on the inner circumferential surface of the upper cover plate 522 , and in this case, it is preferably formed at a position corresponding to the protrusion provided on the lower cover plate 512 .

The device for forming a buoyancy according to the present invention described above has been described with reference to the accompanying drawings, but this is only an example, and various modifications and equivalent other embodiments are possible by those skilled in the art. will understand

Accordingly, the scope of true technical protection of the present invention should be defined only by the technical spirit of the appended claims.

10: foam
100: lower mold
110: lower molding space
120: lower steam space part
200: upper mold
210: upper molding space
220: upper steam space part
300: steam supply unit
310: steam generator
411: lower heat plate
412: lower heating rod
421: upper heat plate
422: upper heating rod
511: lower heat pipe
512: lower cover plate
521: upper heat pipe
522: upper cover plate

Claims (5)

a lower mold in which a lower forming space for forming a buoyant is formed downwardly on one side, and a lower steam space is formed therein through which steam is supplied around the lower forming space;
It is disposed on the upper part of the lower mold, and an upper molding space for forming a buoy together with the lower molding space on one side facing the lower mold is formed to be drawn upwardly, and steam is formed inside the upper molding space around the upper molding space. an upper mold in which an upper steam space to be supplied is formed;
a steam supply unit for respectively supplying steam to the lower steam space of the lower mold and the upper steam space of the upper mold to heat the lower mold and the upper mold, and recovering the supplied steam;
and a main heat transfer unit installed in the lower mold and the upper mold; and
The main heat transfer unit includes a lower heat transfer plate buried between the lower molding space and the lower steam space, one side connected to the lower heat transfer plate and the other end extending into the lower steam space at least one lower heat transfer rod, and , an upper heat transfer plate buried between the upper molding space and the upper steam space, and at least one upper heat transfer rod having one side connected to the upper heat plate and the other side extending into the upper steam space Bugu molding device characterized by the
delete a lower mold in which a lower forming space for forming a buoyant is formed downwardly on one side, and a lower steam space is formed therein through which steam is supplied around the lower forming space;
It is disposed on the upper part of the lower mold, and an upper molding space for forming a buoy together with the lower molding space on one side facing the lower mold is formed to be drawn upwardly, and steam is formed inside the upper molding space around the upper molding space. an upper mold formed with an upper steam space to be supplied;
a steam supply unit for respectively supplying steam to the lower steam space of the lower mold and the upper steam space of the upper mold to heat the lower mold and the upper mold, and recovering the supplied steam;
The lower forming space and the upper forming space are respectively closely disposed on the inner circumferential surface, and a flow path is formed to allow steam supplied from the steam supply unit to pass therethrough, and the heat of the steam passing through the flow path is transferred to the lower forming space and the lower molding space. A sub-heating unit for transferring to the molding space formed by the upper molding space is further provided,
The sub-heating unit is
A lower heat transfer pipe having a first flow path provided therein so that steam can pass through, extending in a zigzag pattern along the inner circumferential surface of the lower steam space, and formed in a semicircular shape corresponding to the lower steam space;
a lower cover plate disposed in close contact with the upper portion of the lower heat pipe to surround the lower heat pipe;
An upper heat transfer pipe having a second flow path provided therein so that steam can pass through, extending in a zigzag pattern along the inner circumferential surface of the upper steam space, and formed in a semicircular shape corresponding to the upper steam space;
and an upper cover plate disposed in close contact with the lower portion of the upper heat pipe to surround the upper heat pipe.
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