KR20210008641A - Manufacturing method of float for level sensor - Google Patents

Manufacturing method of float for level sensor Download PDF

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Publication number
KR20210008641A
KR20210008641A KR1020190085011A KR20190085011A KR20210008641A KR 20210008641 A KR20210008641 A KR 20210008641A KR 1020190085011 A KR1020190085011 A KR 1020190085011A KR 20190085011 A KR20190085011 A KR 20190085011A KR 20210008641 A KR20210008641 A KR 20210008641A
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South Korea
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float
fusion protrusion
cap
main body
case
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KR1020190085011A
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Korean (ko)
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정지환
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정지환
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Publication of KR20210008641A publication Critical patent/KR20210008641A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/16—Homopolymers or copolymers or vinylidene fluoride
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C2045/1486—Details, accessories and auxiliary operations

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

The present invention relates to a method of manufacturing a float for a water level detection sensor, in which a body and a cap are injection-molded into a predetermined shape, and sealed and coupled to each other rapidly and firmly by a thermal fusion scheme, so that a manufacturing time is reduced, and a thin thickness is achieved, which results in miniaturization, while a buoyancy detection ability is increased, which remarkably improves quality of a product. The method of manufacturing the float for the water level detection sensor includes: a first process (S10) of molded a body (110) and a cap (130) of a float (100) having a fusion protrusion part; a second process (S20) of assembling the float (100) by coupling the body (110) and the cap (130), which are molded through the first process (S10), to a magnetic body (130); and a third process (S30) of molding of the float by thermally fusing the fusion protrusion part of the float (100) assembled through the second process (S20).

Description

수위감지센서용 플로트의 제작방법{MANUFACTURING METHOD OF FLOAT FOR LEVEL SENSOR}Manufacturing method of float for water level detection sensor{MANUFACTURING METHOD OF FLOAT FOR LEVEL SENSOR}

본 발명은 수위감지센서용 플로트(Float)의 제작방법에 관한 것으로, 더욱 상세하게는 본체와 캡을 소정 형태로 사출 성형하고 이를 열융착방식에 의해 신속 견고하게 밀봉 결합함으로써 제작시간이 감소되고 두께를 얇게 할 수 있어 소형화가 가능하며 동시에 부력감지능력이 상승되어 제품의 퀼리티를 크게 향상시킨 수위감지센서용 플로트의 제작방법에 관한 것이다.The present invention relates to a method of manufacturing a float for a water level sensor, and more particularly, a body and a cap are injection-molded into a predetermined shape, and the manufacturing time is reduced and thickness is quickly and firmly sealed by a heat-sealing method. It relates to a method of manufacturing a float for a water level sensor that can be made thinner, so that it can be miniaturized, and at the same time, the buoyancy detection ability is increased, which greatly improves the quality of the product.

일반적으로 수위감지센서는 물을 포함하는 다양한 형태의 액체의 레벨을 감지하는 센서로 부력을 가지는 플로트를 포함한다.In general, the water level sensor is a sensor that detects the level of various types of liquids including water and includes a float having buoyancy.

상기 플로트에는 자성체가 내장되고 상기 플로트가 결합되는 감지봉에는 감지센서인 리드스위치가 다수개 설치되며 상기 플로트의 상하 이동에 따라 리드스위치의 온, 오프(ON/OFF)되어 이 신호발생으로 수위를 감지하게 된다.A magnetic material is embedded in the float, and a plurality of reed switches, which are detection sensors, are installed on the sensing rod to which the float is coupled, and the reed switch is turned on and off (ON/OFF) according to the vertical movement of the float, thereby generating the water level. Will be detected.

이러한 수위감지센서용 플로트에 있어서 본 발명자에 의해 제안된 '수위레벨센서용 부구 제작방법 및 그 부구'가 한국등록특허공보 10-0809573에 개시된다.In the float for such a water level sensor, a'method for manufacturing a water level sensor accessories and a accessories thereof' proposed by the inventors is disclosed in Korean Patent Publication No. 10-0809573.

상기 등록특허공보 10-0809573는 사출 성형한 부구본체와 덮개를 구비하고, 그 내부에 자석을 내장한 다음 덮개를 부구본체에 가 조립시킨 후 제2사출금형을 통해 추가적인 불소수지를 이용한 이차 사출성형으로서 부구본체와 덮개의 결합부위가 일체로 하나 되는 부구를 제작함으로써, 산성 또는 독성을 갖는 화학용액이 담긴 저장탱크 내에 설치되는 수위레벨센서용의 부구로서 잦은 교체 없이 사용할 수 있는 장점을 제공하여 제품생산성을 향상시킨 효과를 제공하였다.The above registered patent publication 10-0809573 includes an injection-molded accessory body and a cover, a magnet is embedded therein, and then the cover is pre-assembled to the accessory body, and then secondary injection molding using an additional fluororesin through a second injection mold. This product provides an advantage that can be used without frequent replacement as a bracket for a water level sensor installed in a storage tank containing an acidic or toxic chemical solution by manufacturing a bracket that combines the body and the cover as one. It provided the effect of improving productivity.

그러나 이러한 부구(이하 '플로트' 라 함)는 소형화가 어려운 문제점이 있었다.However, there was a problem that it was difficult to miniaturize these parts (hereinafter referred to as'float').

즉 이중사출로 플로트가 제작되는 바, 상기 이중사출이란 사출품이 어느 정도의 기본 두께가 있어야만 제작이 가능한 공정으로, 일정크기 이하의 소형 플로트 제작이 사실상 불가능 했고, 동시에 사출품의 두께 때문에 상대적으로 가벼운 플로트의 제작이 어려웠다. In other words, a float is produced by double injection, and the double injection is a process that can be produced only when the injection product has a certain basic thickness, and it was practically impossible to manufacture a small float of a certain size or less. It was difficult to make a light float.

결국 종래의 플로트는 기본적인 무게가 존재하여 부력에 대해 작용하는 민감성도 어는 정도 한계가 있어왔다.Eventually, the conventional float has a basic weight, so there has been a limit to some degree of sensitivity acting on buoyancy.

한편 플로트의 제작 시, 이중사출이 아닌 열초음파 접착방식에 제안된 바 있으나 이 방식은 고비용의 장치를 설치하고 접착공정을 수행하여야 하는 바 비용이 추가되고 제조공정이 많고 번거로운 문제점이 있었다.On the other hand, when manufacturing a float, it has been proposed for a thermo-ultrasonic bonding method rather than double injection, but this method has a problem in that the cost is added and the manufacturing process is many and cumbersome because it requires installing an expensive device and performing the bonding process.

등록특허공보 10-0809573, 등록실용신안공보 20-0283738, 등록실용신안공보 20-0283739Registered Patent Publication 10-0809573, Registered Utility Model Publication 20-0283738, Registered Utility Model Publication 20-0283739

본 발명은 상기한 문제점을 해결하기 위하여 창안된 것으로, 본 발명의 목적은 본체와 캡을 소정 형태로 사출 성형하고 이를 열융착방식에 의해 신속 견고하게 밀봉 결합함으로써 제작시간이 감소되고 두께를 얇게 할 수 있어 소형화가 가능하며 동시에 부력감지능력이 상승되어 제품의 퀼리티를 크게 향상시킨 수위감지센서용 플로트의 제작방법을 제공하는 것에 있다.The present invention was invented to solve the above problems, and an object of the present invention is to reduce the manufacturing time and reduce the thickness by injection-molding the body and the cap into a predetermined shape and quickly and firmly sealing the body and cap into a predetermined shape. It is to provide a method of manufacturing a float for a water level detection sensor that can be miniaturized, and at the same time, the buoyancy detection capability is increased, which greatly improves the quality of the product.

이와 같은 목적을 달성하기 위한 본 발명은 융착돌기부를 가지는 플로트의 본체 및 캡을 성형하는 제1과정과, 상기 제1과정을 통해 성형된 본체 및 캡과 자성체를 결합하여 플로트를 조립 완료하는 제2과정과, 상기 제2과정을 통해 조립 완료된 플로트의 융착돌기부를 열융착하여 플로트를 성형 완료하는 제3과정을 포함하고; 상기 제1과정의 본체는 원통형으로 상단이 개구되도록 형성되는 케이스부와, 상기 케이스부의 내측 중앙으로 일정간격 이격 설치되고 감지봉이 삽입되는 제1삽입공이 형성되는 가이드부와, 상기 가이드부의 외주면에 일정간격을 두고 돌출되며 자성체를 지지 고정하는 다수개의 고정리브와, 상기 케이스부 및 가이드부의 개구 단부에 일정길이 돌출되도록 형성되는 제1융착돌기부 및 제2융착돌기부로 구성되고,The present invention for achieving the above object is a first process of forming a body and a cap of a float having a fusion protrusion, and a second process of assembling the float by combining the body and the cap and the magnetic material formed through the first process. And a third process of heat-sealing the fusion protrusion of the float assembled through the second process and completing the formation of the float; The main body of the first process has a case portion formed in a cylindrical shape so that the upper end thereof is opened, a guide portion installed at a predetermined interval in the inner center of the case portion and a first insertion hole into which a sensing rod is inserted, and a predetermined outer circumferential surface of the guide portion Consisting of a plurality of fixing ribs protruding at intervals and supporting and fixing the magnetic material, and a first fusion protrusion and a second fusion protrusion formed to protrude a predetermined length from the opening end of the case part and the guide part,

상기 제1과정의 캡은 원형으로 상기 본체 케이스부의 직경에 대응되도록 구성되는 상면부와, 상기 상면부의 테두리에 일정 거리 하방으로 돌출 형성되어 상기 케이스부와 결합되는 케이스결합부와, 상기 케이스결합부의 내측으로 일정거리 이격 설치되며 상기 본체의 제1삽입공와 연통되는 제2삽입공이 형성되어 상기 본체의 가이드부와 결합되되, 결합 시 상기 가이드부에 장착된 자성체의 가압 지지하는 가이드결합부와, 상기 케이스결합부 및 가이드결합부가 위치한 상면부 상방으로 일정길이 돌출되도록 형성되는 제3융착돌기부 및 제4융착돌기부를 포함하고;The cap of the first process includes an upper surface portion configured to correspond to the diameter of the main body case portion in a circular shape, a case coupling portion protruding downward from a predetermined distance from the edge of the upper surface portion to be coupled to the case portion, and the case coupling portion. A second insertion hole is formed inwardly spaced apart by a certain distance and communicates with the first insertion hole of the main body, and is coupled to the guide part of the main body, and a guide coupling part for pressing and supporting the magnetic body mounted on the guide part when combined, and the And a third fusion protrusion and a fourth fusion protrusion formed to protrude a predetermined length above the upper surface portion on which the case coupling part and the guide coupling part are located;

상기 제2과정에서 상기 본체 및 캡과 자성체 결합하여 플로트를 조립 완료하면 상기 본체의 제1융착돌기부 및 제2융착돌기부가 각각 상기 캡의 제3융착돌기부 및 제4융착돌기부와 접촉된 상태로 상면부의 상부에 일정 길이 위치하도록 구성되는 것을 특징으로 한다.In the second process, when the body and the cap are magnetically combined to assemble the float, the first and second fusion protrusions of the main body are in contact with the third and fourth fusion protrusions of the cap. It is characterized in that it is configured to be positioned at a certain length on the top of the part.

또한 본 발명에 따르면 상기 제1과정의 본체의 제1융착돌기부 및 제2융착돌기부는 상기 케이스부 및 가이드부의 단면 두께보다는 작도록 구성한 것을 특징으로 한다.In addition, according to the present invention, the first fusion protrusion and the second fusion protrusion of the main body of the first process are configured to be smaller than the cross-sectional thickness of the case part and the guide part.

또한 본 발명에 따르면 상기 제1과정의 캡의 케이스결합부는 외측으로 단턱부를 더 구비하여 상기 본체의 케이스부와 결합 시 제1융착돌기부에 의한 턱부가 용이하게 서로 결합되도록 구성된 것을 특징으로 한다.In addition, according to the present invention, the case coupling portion of the cap of the first step is further provided with a stepped portion to the outside so that the jaw portions by the first fusion protrusion are easily coupled to each other when coupled to the case portion of the main body.

또한 본 발명에 따르면 상기 제3과정은 상기 본체의 제1융착돌기부와 캡의 제3융착돌기부가 접촉되어 상방으로 돌출되어진 부위와, 본체의 제2융착돌기부와 캡의 제4융착돌기부가 접촉되어 상방으로 돌출되어진 부위를 열융착하는 것을 특징으로 한다.In addition, according to the present invention, in the third process, the first fusion protrusion of the main body and the third fusion protrusion of the cap are in contact with the portion protruding upward, and the second fusion protrusion of the main body and the fourth fusion protrusion of the cap are in contact. It is characterized in that heat-sealing the area protruding upward.

또한 본 발명에 따르면 상기 제1과정의 본체와 캡은 폴리플루오린화비닐리덴(PVDF) 재질로 성형하는 것을 특징으로 한다.In addition, according to the present invention, the main body and the cap of the first step are formed of polyvinylidene fluoride (PVDF) material.

이와 같이 본 발명은 본체와 캡을 소정 형태로 사출 성형하고 이를 열융착방식에 의해 신속 견고하게 밀봉 결합함으로써 제작시간이 감소되고 두께를 얇게 할 수 있어 소형화가 가능하며 동시에 부력감지능력이 상승되어 제품의 퀼리티를 크게 향상시킨 장점을 제공한다.As described above, in the present invention, the main body and the cap are injection-molded into a predetermined shape, and the manufacturing time is reduced and the thickness can be reduced by sealingly and fastening the body and the cap in a predetermined form, thereby reducing the size and increasing the buoyancy sensing ability. It provides the advantage of greatly improving the quality of the product.

또한 본 발명은 플로트 제조공정이 간소화되어 비용을 절감할 수 있는 장점을 제공한다.In addition, the present invention provides the advantage of reducing cost by simplifying the float manufacturing process.

도 1은 본 발명에 따른 수위감지센서용 플로트가 장착된 수위감지센서의 주요부 구성도,
도 2는 본 발명에 따른 플로트의 사시도,
도 3는 본 발명에 따른 플로트의 분해 사시도,
도 4는 상기 도 3의 측단면도,
도 5는 본 발명에 따른 플로트의 결합 측단면도,
도 6은 본 발명에 따른 플로트의 제작 완성 시의 측단면도,
도 7은 본 발명에 따른 수위감지센서용 플로트의 제작방법의 공정수순이다.1 is a configuration diagram of a main part of a water level detection sensor equipped with a float for a water level detection sensor according to the present invention,
2 is a perspective view of a float according to the present invention,
3 is an exploded perspective view of a float according to the present invention,
Figure 4 is a side cross-sectional view of Figure 3,
5 is a side cross-sectional view of the float according to the present invention,
6 is a side cross-sectional view of a float according to the present invention upon completion of production;
7 is a process sequence of a method of manufacturing a float for a water level sensor according to the present invention.

이하 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예를 보다 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 수위감지센서용 플로트가 장착된 수위감지센서의 주요부 구성도, 도 2는 본 발명에 따른 플로트의 사시도, 도 3는 본 발명에 따른 플로트의 분해 사시도이다.1 is a configuration diagram of a main part of a water level sensor equipped with a float for a water level sensor according to the present invention, FIG. 2 is a perspective view of the float according to the present invention, and FIG. 3 is an exploded perspective view of the float according to the present invention.

먼저, 본 발명에 따라 제작되는 플로트(100)는 감지봉(210)의 외주면을 따라 상하로 움직이도록 설치되며, 상기 감지봉(210)에는 다수개의 리드스위치가 일정 간격으로 배치된 센서PCB(220)가 내장되고 상기 플로트(100)에는 자성체가 내장되어 상기 플로트(100)가 상하 이동하면서 해당 위치에 있는 센서PCB(220)의 리드스위치를 온(ON)하여 주어 센싱동작을 수행하도록 구성된다.First, the float 100 manufactured according to the present invention is installed to move up and down along the outer circumferential surface of the sensing rod 210, and the sensing rod 210 has a plurality of reed switches arranged at regular intervals. ) Is built in, and a magnetic material is embedded in the float 100 so that the float 100 moves up and down and turns on the reed switch of the sensor PCB 220 at a corresponding position to perform a sensing operation.

본 발명 수위감지센서용 플로트의 제작방법은 도 7에 도시된 바와 같이 융착돌기부를 가지는 플로트의 본체 및 캡을 성형하는 제1과정(S10)과, 상기 제1과정(S10)을 통해 성형된 본체 및 캡과 자성체를 결합하여 플로트를 조립 완료하는 제2과정(S20)과, 상기 제2과정(S20)을 통해 조립 완료된 플로트의 융착돌기부를 열융착하여 플로트를 성형 완료하는 제3과정(S30)을 포함한다.The method of manufacturing a float for a water level sensor according to the present invention includes a first process (S10) of forming a body and a cap of a float having a fusion protrusion as shown in FIG. 7 and a body formed through the first process (S10). And a second process (S20) of completing the assembly of the float by combining the cap and the magnetic material, and a third process (S30) of heat-sealing the fusion protrusions of the assembled float through the second process (S20). Includes.

여기서 상기 제1과정(S10)에서 제작되는 융착돌기부를 가지는 본체 및 캡의 구성을 도 2 및 도 3을 참조하여 설명한다.Here, the configuration of the body and the cap having the fusion protrusion manufactured in the first process (S10) will be described with reference to FIGS. 2 and 3.

상기 본체(110)는 원통형으로 상단이 개구되도록 형성되는 케이스부(111)와, 상기 케이스부(111)의 내측 중앙으로 일정간격 이격 설치되고 감지봉(210)이 삽입되는 제1삽입공(112)이 형성되는 가이드부(113)와, 상기 가이드부(113)의 외주면에 일정간격을 두고 돌출되며 자성체(120)를 지지 고정하는 다수개의 고정리브(114)와, 상기 케이스부(111) 및 가이드부(113)의 개구 단부에 일정길이 돌출되도록 형성되는 제1융착돌기부(115) 및 제2융착돌기부(116)로 구성된다.The main body 110 has a case part 111 formed to have an upper end in a cylindrical shape, and a first insertion hole 112 that is installed at a predetermined interval in the inner center of the case part 111 and into which the sensing rod 210 is inserted. ) Is formed, a plurality of fixing ribs 114 protruding from the outer circumferential surface of the guide part 113 at regular intervals and supporting and fixing the magnetic body 120, the case part 111, and It consists of a first fusion protrusion 115 and a second fusion protrusion 116 formed to protrude a predetermined length from the opening end of the guide unit 113.

상기 제1융착돌기부(115) 및 제2융착돌기부(116)는 상기 케이스부(111) 및 가이드부(113)의 개구 단부에 일정길이 돌출되도록 형성하되, 상기 케이스부(111) 및 가이드부(113)의 단면 두께보다는 작도록 구성한다.The first fusion protrusion 115 and the second fusion protrusion 116 are formed to protrude a predetermined length from the opening ends of the case part 111 and the guide part 113, and the case part 111 and the guide part ( 113) is configured to be smaller than the cross-sectional thickness.

상기 제1융착돌기부(115) 및 제2융착돌기부(116)는 추후 열융착 접합 공정 시 열융착되는 구성요소이다.The first fusion protrusion 115 and the second fusion protrusion 116 are components that are thermally fused during a subsequent thermal fusion bonding process.

상기 케이스부(111)와 가이드부(113)는 그 사이에 형성되는 공간에 의한 공기층에 의해 부력기능을 가지게 된다.The case part 111 and the guide part 113 have a buoyancy function by an air layer formed therebetween.

상기 가이드부(113)의 내측 제1삽입공(112)으로는 감지봉(221)이 삽입되고, 상기 가이드부(113)의 외주면에는 자성체(120)가 삽입되되 상기 다수개의 고정리브(114)에 의해 하방으로 더 이상 내려오지 않게 고정된다.A sensing rod 221 is inserted into the first insertion hole 112 inside the guide part 113, and a magnetic body 120 is inserted into the outer circumferential surface of the guide part 113, but the plurality of fixing ribs 114 It is fixed so that it no longer descends downward by

한편 상기 캡(130)은 원형으로 상기 본체(110) 케이스부(111)의 직경에 대응되도록 구성되는 상면부(131)와, 상기 상면부(131)의 테두리에 일정 거리 하방으로 돌출 형성되어 상기 케이스부(111)와 결합되는 케이스결합부(132)와, 상기 케이스결합부(132)의 내측으로 일정거리 이격 설치되며 상기 본체(110)의 제1삽입공(112)와 연통되는 제2삽입공(133)이 형성되어 상기 본체(110)의 가이드부(113)와 결합되되, 결합 시 상기 가이드부(113)에 장착된 자성체(120)의 가압 지지하는 가이드결합부(134)와, 상기 케이스결합부(132) 및 가이드결합부(134)가 위치한 상면부(131) 상방으로 일정길이 돌출되도록 형성되는 제3융착돌기부(135) 및 제4융착돌기부(136)를 포함한다.Meanwhile, the cap 130 has an upper surface portion 131 configured to correspond to the diameter of the case portion 111 of the main body 110 in a circular shape, and the upper surface portion 131 protrudes downward a predetermined distance from the rim of the upper surface portion 131. The case coupling portion 132 coupled to the case portion 111, and a second insertion installed at a certain distance apart from the inside of the case coupling portion 132 and communicating with the first insertion hole 112 of the main body 110 The ball 133 is formed and coupled to the guide portion 113 of the main body 110, the guide coupling portion 134 for pressing and supporting the magnetic body 120 mounted on the guide portion 113 when coupled, and the It includes a third fusion protrusion 135 and a fourth fusion protrusion 136 formed to protrude a predetermined length upward from the upper surface portion 131 where the case coupling portion 132 and the guide coupling portion 134 are located.

상기 케이스결합부(132)는 외측으로 단턱부(137)를 더 구비하여 상기 본체(110)의 케이스부(111)와 결합 시 제1융착돌기부(115)에 의한 턱부가 용이하게 서로 결합되도록 하여준다. The case coupling portion 132 is further provided with a stepped portion 137 to the outside so that the jaws of the first fusion protrusion 115 are easily coupled to each other when coupled with the case portion 111 of the main body 110. give.

또한 상기 제3융착돌기부(135) 및 제4융착돌기부(136)는 추후 열융착 접합 공정 시 열융착되는 구성요소로, 상기 본체(110)와 캡(130)이 서로 결합되면, 상기 제1융착돌기부(115)는 제3융착돌기부(135)와, 상기 제2융착돌기부(116)는 제4융착돌기부(136)와 인접 결합되어 진다.In addition, the third fusion protrusion 135 and the fourth fusion protrusion 136 are components that are thermally fused during a subsequent heat fusion bonding process, and when the main body 110 and the cap 130 are combined with each other, the first fusion protrusion The protrusion 115 is coupled to the third fusion protrusion 135 and the second fusion protrusion 116 is adjacent to the fourth fusion protrusion 136.

이와 같이 본 발명 제1과정( S10)은 합성수지 사출물인 상기 본체(110)와 캡(130)을 성형하는 과정이며, 상기 본체(110)와 캡(130)은 플루오린을 함유한 플라스틱으로 열적, 화학적 성질이 뛰어난 합성수지 재질로 제작되며, 특히 폴리플루오린화비닐리덴(PVDF)으로 성형하는 것이 바람직하지만 반드시 이에 한정되지 않는다.As described above, the first process of the present invention ( S10) is a process of molding the main body 110 and the cap 130, which are synthetic resin injection products, and the main body 110 and cap 130 are plastics containing fluorine and are made of a synthetic resin material with excellent thermal and chemical properties. In particular, it is preferable to mold with polyvinylidene fluoride (PVDF), but is not limited thereto.

상기 제2과정(S20)은 상기 제1과정(S10)을 통해 성형된 본체(110) 및 캡(130)과 자성체(130)를 결합하여 플로트(100)를 조립 완료하는 과정으로 도 5를 참조하여 설명한다.The second process (S20) is a process of assembling the float 100 by combining the body 110 and the cap 130 and the magnetic body 130 formed through the first process (S10), see FIG. This will be explained.

먼저, 링 형상의 자성체(120)를 본체(110)의 개구를 통해 가이드부(113)에 삽입한다.First, the ring-shaped magnetic body 120 is inserted into the guide unit 113 through the opening of the main body 110.

상기 가이드부(113)에 삽입된 자성체(120)는 고정리브(114)에 걸려 더 이상 하부로 내려가지 못하는 상태로 지지된다.The magnetic body 120 inserted into the guide part 113 is caught by the fixing rib 114 and is supported in a state that cannot be lowered any more.

이와 같은 상태에서 캡(130)을 상기 본체(110)로 씌워 결합시켜준다.In this state, the cap 130 is covered with the main body 110 to be coupled.

이때 상기 캡(130)의 가이드결합부(134)가 본체(110)의 가이드부(113)의 외경을 타고 내려오면서 상기 자성체(120)를 가압하고 고정시켜주는 위치에 다다른다.At this time, as the guide coupling portion 134 of the cap 130 descends along the outer diameter of the guide portion 113 of the main body 110, it reaches a position to pressurize and fix the magnetic body 120.

이와 같은 위치, 즉 상기 캡(130)이 본체(110)에 완전 결합된 상태가 되면, 상기 캡(130)의 케이스결합부(132)의 단턱부(137)와 본체(110)의 제1융착돌기부(115)가 턱부가 안착되면서 상기 제1융착돌기부(115)가 상기 캡(130)의 제3융착돌기부(135)와 접촉된 상태로 상면부(131)의 상부에 위치하게 된다.In such a position, that is, when the cap 130 is completely coupled to the body 110, the stepped portion 137 of the case coupling portion 132 of the cap 130 and the body 110 are first fused. As the protrusion 115 is seated on the jaw, the first fusion protrusion 115 is positioned on the upper surface 131 in contact with the third fusion protrusion 135 of the cap 130.

동시에 상기 본체(110)의 가이드부(113)의 제2융착돌기부(116)가 상기 캡(130)의 제4융착돌기부(136)와 접촉된 상태로 상면부(131)의 상부로 위치하게 된다.At the same time, the second fusion protrusion 116 of the guide part 113 of the main body 110 is in contact with the fourth fusion protrusion 136 of the cap 130 and is positioned above the upper surface part 131. .

상기 제3과정(S30)은 상기 제2과정(S20)을 통해 상기 조립 완료된 플로트(100)의 융착돌기부를 열융착하여 플로트를 성형 완료하는 과정이다. The third process (S30) is a process of heat-sealing the fusion protrusion of the assembled float 100 through the second process (S20) to complete the formation of the float.

상기 제3과정(S30)은 도 5에서와 같이 조립 완료된 플로트(100)를 상방으로 돌출된 부위, 즉 본체(110)의 제1융착돌기부(115)와 캡(130)의 제3융착돌기부(135)가 접촉되어 상방으로 돌출되어진 부위와, 본체(110)의 제2융착돌기부(116)와 캡(130)의 제4융착돌기부(136)가 접촉되어 상방으로 돌출되어진 부위를 열융착 가공기기를 통해 도 6에서와 같이 열융착 하여 밀봉 열접착(G) 하여 준다.The third process (S30) is a portion protruding upward from the assembled float 100 as shown in FIG. 5, that is, the first fusion protrusion 115 of the main body 110 and the third fusion protrusion of the cap 130 ( 135) is in contact and protrudes upward, and the second fusion protrusion 116 of the main body 110 and the fourth fusion protrusion 136 of the cap 130 contact and protrude upwardly Through heat-sealing as in FIG. 6, sealing heat-bonding (G) is performed.

따라서 플로트(100) 성형이 완료되는 것이다.Therefore, the float 100 is formed.

이상에서와 같이 본 발명은 본체(110)와 캡(130)을 소정 형태로 사출 성형하고 이를 열융착방식에 의해 신속 견고하게 밀봉 결합함으로써 제작시간이 감소되고 두께를 얇게 할 수 있어 소형화가 가능하며 동시에 부력감지능력이 상승되어 제품의 퀼리티를 크게 향상시킨 장점을 제공한다.As described above, according to the present invention, the main body 110 and the cap 130 are injection-molded into a predetermined shape, and the manufacturing time is reduced and the thickness can be made thin, thereby miniaturization is possible. At the same time, the buoyancy detection ability is increased, providing the advantage of greatly improving the quality of the product.

또한 본 발명은 플로트 제조공정이 간소화되어 비용을 절감할 수 있는 장점도 제공하는 것이다.In addition, the present invention also provides an advantage of reducing cost by simplifying the float manufacturing process.

100: 플로트 110: 본체
111: 케이스부 112: 삽입공
113: 가이드부 114: 고정리브
115: 제1융착돌기부 116: 제2융착돌기부
120: 자성체 130: 캡
131: 상면부 132: 케이스결합부
133: 삽입공 134: 가이드결합부
135: 제3융착돌기부 136: 제4융착돌기부
137 단턱부 100: float 110: main body
111: case part 112: insertion hole
113: guide part 114: fixed rib
115: first fusion protrusion 116: second fusion protrusion
120: magnetic body 130: cap
131: upper surface portion 132: case coupling portion
133: insertion hole 134: guide coupling portion
135: third fusion protrusion 136: fourth fusion protrusion
137 Step

Claims (5)

융착돌기부를 가지는 플로트(100)의 본체(110) 및 캡(130)을 성형하는 제1과정(S10)과, 상기 제1과정(S10)을 통해 성형된 본체(110) 및 캡(130)과 자성체(130)를 결합하여 플로트(100)를 조립 완료하는 제2과정(S20)과, 상기 제2과정(S20)을 통해 조립 완료된 플로트(100)의 융착돌기부를 열융착하여 플로트를 성형 완료하는 제3과정(S30)을 포함하고;
상기 제1과정(S10)의 본체(110)는 원통형으로 상단이 개구되도록 형성되는 케이스부(111)와, 상기 케이스부(111)의 내측 중앙으로 일정간격 이격 설치되고 감지봉(210)이 삽입되는 제1삽입공(112)이 형성되는 가이드부(113)와, 상기 가이드부(113)의 외주면에 일정간격을 두고 돌출되며 자성체(120)를 지지 고정하는 다수개의 고정리브(114)와, 상기 케이스부(111) 및 가이드부(113)의 개구 단부에 일정길이 돌출되도록 형성되는 제1융착돌기부(115) 및 제2융착돌기부(116)로 구성되고,
상기 제1과정(S10)의 캡(130)은 원형으로 상기 본체(110) 케이스부(111)의 직경에 대응되도록 구성되는 상면부(131)와, 상기 상면부(131)의 테두리에 일정 거리 하방으로 돌출 형성되어 상기 케이스부(111)와 결합되는 케이스결합부(132)와, 상기 케이스결합부(132)의 내측으로 일정거리 이격 설치되며 상기 본체(110)의 제1삽입공(112)와 연통되는 제2삽입공(133)이 형성되어 상기 본체(110)의 가이드부(113)와 결합되되, 결합 시 상기 가이드부(113)에 장착된 자성체(120)의 가압 지지하는 가이드결합부(134)와, 상기 케이스결합부(132) 및 가이드결합부(134)가 위치한 상면부(131) 상방으로 일정길이 돌출되도록 형성되는 제3융착돌기부(135) 및 제4융착돌기부(136)를 포함하고;
상기 제2과정(S20)에서 상기 본체(110) 및 캡(130)과 자성체(130)를 결합하여 플로트(100)를 조립 완료하면 상기 본체(110)의 제1융착돌기부(115) 및 제2융착돌기부(116)가 각각 상기 캡(130)의 제3융착돌기부(135) 및 제4융착돌기부(136)와 접촉된 상태로 상면부(131)의 상부에 일정 길이 위치하도록 구성되는 것을 특징으로 하는 수위감지센서용 플로트의 제작방법.
The first process (S10) of molding the main body 110 and the cap 130 of the float 100 having a fusion protrusion (S10), the body 110 and the cap 130 formed through the first process (S10), The second process (S20) of assembling the float 100 by combining the magnetic body 130 and the fusion protrusion of the float 100 assembled through the second process (S20) are heat-sealed to complete the formation of the float. Including a third process (S30);
The main body 110 of the first step (S10) has a case part 111 formed to have an upper end in a cylindrical shape, and is installed at a certain interval in the inner center of the case part 111, and a sensing rod 210 is inserted. A guide portion 113 in which the first insertion hole 112 is formed, a plurality of fixing ribs 114 protruding from the outer circumferential surface of the guide portion 113 at regular intervals to support and fix the magnetic body 120, Consisting of a first fusion protrusion 115 and a second fusion protrusion 116 formed to protrude a predetermined length from the opening end of the case part 111 and the guide part 113,
The cap 130 of the first step (S10) has an upper surface portion 131 configured to correspond to the diameter of the case portion 111 of the main body 110 in a circular shape, and a predetermined distance to the rim of the upper surface portion 131 A case coupling portion 132 formed protruding downward to be coupled to the case portion 111, and a first insertion hole 112 of the main body 110 installed at a predetermined distance apart from the inside of the case coupling portion 132 A second insertion hole 133 communicating with is formed to be coupled to the guide portion 113 of the main body 110, and when coupled, a guide coupling portion for pressing and supporting the magnetic body 120 mounted on the guide portion 113 (134) and a third fusion protrusion 135 and a fourth fusion protrusion 136 formed to protrude a predetermined length upward from the upper surface portion 131 where the case coupling portion 132 and the guide coupling portion 134 are located. Including;
When the float 100 is assembled by combining the main body 110 and the cap 130 and the magnetic body 130 in the second process (S20), the first fusion protrusion 115 and the second It characterized in that the fusion protrusion 116 is configured to be positioned at a certain length above the upper surface portion 131 in a state in contact with the third fusion protrusion 135 and the fourth fusion protrusion 136 of the cap 130, respectively. How to make a float for water level detection sensor.
 청구항 1에 있어서,
상기 제1과정(S10)의 본체(110)의 제1융착돌기부(115) 및 제2융착돌기부(116)는 상기 케이스부(111) 및 가이드부(113)의 단면 두께보다는 작도록 구성한 것을 특징으로 하는 수위감지센서용 플로트의 제작방법.
The method according to claim 1,
The first fusion protrusion 115 and the second fusion protrusion 116 of the body 110 of the first step (S10) are configured to be smaller than the cross-sectional thickness of the case part 111 and the guide part 113 A method of manufacturing a float for water level detection sensor.
 청구항 1에 있어서,
상기 제1과정(S10)의 캡(130)의 케이스결합부(132)는 외측으로 단턱부(137)를 더 구비하여 상기 본체(110)의 케이스부(111)와 결합 시 제1융착돌기부(115)에 의한 턱부가 용이하게 서로 결합되도록 구성된 것을 특징으로 하는 수위감지센서용 플로트의 제작방법.The method according to claim 1,
The case coupling portion 132 of the cap 130 of the first step (S10) further includes a stepped portion 137 to the outside, and when the first fusion protrusion is coupled to the case portion 111 of the main body 110 ( 115) A method of manufacturing a float for a water level sensor, characterized in that the jaw portion is configured to be easily coupled to each other. 청구항 1에 있어서,
상기 제3과정(S30)은 상기 본체(110)의 제1융착돌기부(115)와 캡(130)의 제3융착돌기부(135)가 접촉되어 상방으로 돌출되어진 부위와, 본체(110)의 제2융착돌기부(116)와 캡(130)의 제4융착돌기부(136)가 접촉되어 상방으로 돌출되어진 부위를 열융착하는 것을 특징으로 하는 수위감지센서용 플로트의 제작방법.
The method according to claim 1,
In the third process (S30), the first fusion protrusion 115 of the main body 110 and the third fusion protrusion 135 of the cap 130 are in contact with each other and protrude upward, and the first fusion protrusion of the main body 110. 2 A method of manufacturing a float for a water level detection sensor, characterized in that the fusion protrusion 116 and the fourth fusion protrusion 136 of the cap 130 are in contact with each other and heat-sealing a portion protruding upward.
 청구항 1에 있어서,
상기 제1과정( S10)의 본체(110)와 캡(130)은 폴리플루오린화비닐리덴(PVDF) 재질로 성형하는 것을 특징으로 하는 수위감지센서용 플로트의 제작방법.The method according to claim 1,
The body 110 and the cap 130 of the first step (S10) are made of polyvinylidene fluoride (PVDF) material.
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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100809573B1 (en) 2007-07-12 2008-03-04 정지환 Float and manufacturing method of float for water level sensor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100809573B1 (en) 2007-07-12 2008-03-04 정지환 Float and manufacturing method of float for water level sensor

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