KR100524533B1 - manufacturing method of shot - Google Patents
manufacturing method of shot Download PDFInfo
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- KR100524533B1 KR100524533B1 KR10-2003-0013448A KR20030013448A KR100524533B1 KR 100524533 B1 KR100524533 B1 KR 100524533B1 KR 20030013448 A KR20030013448 A KR 20030013448A KR 100524533 B1 KR100524533 B1 KR 100524533B1
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- Prior art keywords
- cutting
- cut
- shot
- impeller
- conveying
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- 238000004519 manufacturing process Methods 0.000 title abstract description 28
- 238000005520 cutting process Methods 0.000 claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000003860 storage Methods 0.000 claims abstract description 18
- 239000000428 dust Substances 0.000 claims abstract description 16
- 238000000465 moulding Methods 0.000 claims abstract description 15
- 229910000617 Mangalloy Inorganic materials 0.000 claims abstract description 3
- 238000005480 shot peening Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000007730 finishing process Methods 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000007517 polishing process Methods 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/02—Adhesive bandages or dressings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/02—Adhesive bandages or dressings
- A61F13/0259—Adhesive bandages or dressings characterised by the release liner covering the skin adhering layer
- A61F13/0266—Adhesive bandages or dressings characterised by the release liner covering the skin adhering layer especially adapted for wound covering/occlusive dressings
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
본 발명은 숏피닝가공에 사용되는 숏의 제조방법에 관한 것으로, 강선을 절단칼날이 형성된 고속회전롤러에 연속진입시켜 일정한 길이로 절단시키는 절단단계와; 상기 절단단계에서 절단된 절단편을 숏 성형장치의 저장탱크로 투입시키는 투입단계와; 상기 저장탱크내의 절단편을 임펠러 전방으로 낙하이송시키는 이송단계와; 낙하되는 절단편을 상기 임펠러의 고속회전에 의해 형성된 고속기류에 의해 망간강으로 형성된 투사면에 투사하여 가공성형시키는 성형단계와; 상기 성형단계에서 절단편의 충돌파편에 의해 발생된 분진을 집진기로 흡출 및 집진시키는 분진흡출단계; 상기 성형단계에서 충돌변형되어 상기 임펠러 및 투사면 하측으로 하강된 절단편을 컨베이어에 의해 상측의 상기 저장탱크로 자동으로 연속운반시키는 운반단계;를 포함하여 구성되며, 상기 이송단계와, 성형단계와, 운반단계가 연속적으로 반복되어 절단편을 가공성형시킴을 기술적 요지로 하여, 커트와이어의 성형시간을 단축시키고 제작공정을 단순화하여 작업능률을 향상시키면서도, 표면 강도가 향상되어 숏피닝 가공 시 기계적 효율이 높은 숏 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a shot used for shot peening processing, comprising: a cutting step of continuously entering a steel wire into a high-speed rotating roller having a cutting blade to cut a predetermined length; An input step of inserting the cut pieces cut in the cutting step into a storage tank of a shot molding apparatus; A transfer step of dropping the cut piece in the storage tank to the front of the impeller; A molding step of projecting and dropping the dropped pieces onto a projection surface formed of manganese steel by a high speed air stream formed by a high speed rotation of the impeller; A dust suction step of sucking and collecting dust generated by the impact debris of the cutting piece in the forming step with a dust collector; And a conveying step of conveying the impeller and the cutting piece lowered to the lower side of the projection surface automatically by the conveyor to the storage tank of the upper side by the conveyor. The conveying step and the forming step As a technical point, the cutting steps are continuously processed by repeating the conveying step, which shortens the cutting time of the cut wire, simplifies the manufacturing process, and improves the work efficiency, while improving the surface strength and thus mechanical efficiency during shot peening. This high shot manufacturing method is related.
Description
본 발명은 숏피닝가공에 사용되는 숏의 제조방법에 관한 것으로써, 더욱 상세하게는 커트와이어를 투사벽에 연속적으로 투사하여 제작되는 숏 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a shot used for shot peening processing, and more particularly, to a shot manufacturing method produced by continuously projecting a cut wire onto a projection wall.
숏피닝은 숏이라고 하는 강제 소립자를 피가공품 표면에 20 ∼ 50cm/sec 속도로 다수 분산시키는 냉간 가공법이며, 숏피닝을 공작물에 입히면 표면이 경화되는 동시에 재료의 피로 한도가 증가하여, 공작물을 다듬질하면서 스프링, 기어, 차축 등의 피로 수명을 개선하고 기계적 성질을 향상시키는 데 기여하고 있다.Shot peening is a cold working method in which a large number of forced small particles called shots are dispersed on the surface of the workpiece at a speed of 20 to 50 cm / sec. When shot peening is applied to a workpiece, the surface hardens and the fatigue limit of the material increases, while finishing the workpiece. It contributes to improving fatigue life and improving mechanical properties of springs, gears and axles.
이러한 숏에는 냉경주철 숏, 하단주철 숏, 주강 숏, 커트와이어 숏 등이 있으나, 냉경주철 숏은 용탕을 수중에 산포하여 급랭경화한 것으로 경도가 크고 작업 능률은 좋지만 파괴되기 쉬워 일부러 열처리를 해서 경도를 낮추는 경우도 있다.Such shots include cold cast iron shots, bottom cast iron shots, cast steel shots, and cut wire shots. This may lower the hardness.
최근에는 냉경주철 숏보다 인성과 강성이 훨씬 높은 커트와이어 숏이 주로 사용되며 이러한 커트와이어 숏은 강선을 절단하여 미세한 절단편을 형성한 후 구형으로 연마하여 제작된다.Recently, a cut wire shot having a higher toughness and rigidity than a cold cast iron shot is mainly used. The cut wire shot is manufactured by cutting a steel wire to form a fine cut piece and then grinding it into a spherical shape.
이러한 소형 강구를 제조하는 종래 기술로서 주로 베어링에 사용되는 소형 강구 제조방법인 특허 공개번호 1985-0007394에 안출된 초정밀 소형강구의 제조방법에 대해 간단히 설명하기로 한다.As a conventional technology for manufacturing such small steel balls, a method of manufacturing ultra-precision small steel balls disclosed in Patent Publication No. 1985-0007394, which is a method for manufacturing small steel balls mainly used in bearings, will be briefly described.
상기의 초정밀 소형강구 제조방법은 철선 재단공정, 1차강구 제작공정, 가열공정, 템파링공정, 2차강구 제작공정, 포리싱공정, 마무리공정을 거치는 7단계 공정으로 이루어지며, 1차강구 제작공정, 포리싱공정 및 마무리공정을 거치는 것을 특징으로 한다.The ultra-precision small steel manufacturing method is composed of a seven-step process of the steel cutting process, primary steel ball manufacturing process, heating process, tempering process, secondary steel ball manufacturing process, processing process, finishing process, primary steel ball production Characterized in that the process, the processing process and the finishing process.
1차강구 제작공정은 재단된 소재를 내면에 요철면이 형성되거나 돌기가 설치된 연마통내에 투입하고 임펠러를 회동시켜 재단된 소재가 자체마찰에 의해 구형으로 연마되도록 하며, 흡출관을 통해 연마시 내부에 발생하는 분비물이 제거되도록 한다.In the first steel ball manufacturing process, the cut material is put into the polishing barrel with the uneven surface formed or the projection inside, and the impeller is rotated so that the cut material is spherically polished by self-friction. Make sure to remove any secretions from your body.
1차강구 제작공정은 최초에는 재단된 소재 표면에 급격한 충돌이 일어나지 않으면서 각진 부분이 구형으로 연마되도록 임펠러를 저속으로 회동시키고, 다음에는 임펠러를 고속으로 회동시켜 구 형성을 가속화하며,다시 임펠러를 저속으로 회동시켜 표면이 정리되도록하는 3단계 연마작업을 거치게 된다.The primary steel ball fabrication process first rotates the impeller at low speed so that angled parts are polished to a spherical shape without sharp impact on the surface of the cut material, and then rotates the impeller at high speed to accelerate the formation of the sphere, and then Rotation is performed at low speed to ensure the surface is cleaned in three stages.
포리싱공정은 연마제인 산화크롬을 첨가한 실리콘오일을 삼점접촉 연마기에 공급하고 이에 2차강구를 넣어 서서히 회전시켜 표면이 연마되도록 하여 진구를 얻는 공정이다.The polishing process is a process in which silicon oil containing chromium oxide, which is an abrasive, is supplied to a three-point contact polisher, and then secondary steel balls are slowly rotated to polish the surface to obtain a true sphere.
마무리공정은 상기 포리싱 공정을 거친 강구를 광택제가 첨가된 실리콘오일속에서 재차 서서히 광택 연마시켜 표면이 정밀하고 조도가 양호한 양질의 강구를 얻는 광택연마 공정이다.The finishing process is a polishing process in which steel balls subjected to the polishing process are gradually polished and polished again in a silicone oil to which a polishing agent is added to obtain high quality steel balls with a good surface and good roughness.
상기와 같은 종래의 강구 제조방법은 재단된 소재를 반복적으로 상호 충돌시켜 마찰에 의해 구형으로 연마되도록 함으로써 강구 형상을 형성하는 1차강구 제작공정에 있어서만 연마시간이 10~15시간 이상 소요되어 작업능률이 낮은 문제점이 있었다.The conventional steel ball manufacturing method as described above takes only 10 to 15 hours of polishing time in the primary steel ball manufacturing process of forming a steel ball shape by repeatedly colliding the cut material to be polished into a sphere by friction. There was a problem of low efficiency.
또한 상기와 같은 종래의 강구 제조방법은 상기 포리싱공정 및 마무리공정과 같이 커드와이어를 숏으로 성형제작함에 있어서 필요이상으로 정밀도를 향상시키기 위한 불필요한 공정이 다수 포함되어 시간소모가 크고 번거로운 문제점이 있다.In addition, the conventional steel ball manufacturing method as described above has a lot of time-consuming and cumbersome problems, including a number of unnecessary processes to improve the precision more than necessary in forming the short curd wire, such as the processing and finishing process .
따라서 상기와 같은 문제점을 해결하기 위해 안출된 본 발명은 커트와이어의 성형시간을 단축시키고 제작공정을 단순화하여 작업능률을 향상시키면서도, 표면 강도가 향상되어 숏피닝 가공 시 기계적 효율이 높은 숏 제작방법을 제공하는 것을 목적으로 한다.Therefore, the present invention devised to solve the above problems shortens the molding time of the cut wire and improves the work efficiency by simplifying the manufacturing process, while improving the surface strength, the shot production method of high mechanical efficiency during shot peening processing It aims to provide.
상술한 바와 같은 목적 달성을 위한 본 발명은, 강선을 절단칼날이 형성된 고속회전롤러에 연속진입시켜 일정한 길이로 절단하는 절단단계(Ⅰ)와; 숏 성형장치의 저장탱크(10)로 상기 절단편을 투입하는 투입단계(Ⅱ)와; 상기 저장탱크(10) 내의 절단편을 임펠러(20)로 이송시키는 이송단계(Ⅲ)와; 상기 임펠러(20)로 이송된 절단편을 투사면(30)에 투사하여 가공성형시키는 성형단계(Ⅳ); 상기 가공성형된 절단편을 컨베이어장치(40)에 의해 상기 저장탱크(10)로 운반하는 운반단계(Ⅴ);를 포함하여 구성됨을 특징으로 하는 숏 제작방법을 기술적 요지로 한다.The present invention for achieving the object as described above, the cutting step (I) of continuously cutting the steel wire into a high-speed rotary roller formed with a cutting blade to a certain length; An input step (II) of feeding the cut pieces into the storage tank 10 of the shot molding apparatus; A transfer step (III) of transferring the cut pieces in the storage tank (10) to the impeller (20); A molding step (IV) of projecting the cut pieces transferred to the impeller 20 onto the projection surface 30 to form a workpiece; The manufacturing method is characterized in that it comprises a; conveying step (V) for transporting the processed cut pieces to the storage tank 10 by a conveyor device 40 as a technical gist.
여기서 상기 이송단계(Ⅲ)와, 성형단계(Ⅳ)와, 운반단계(Ⅴ)가 연속적으로 반복되어 절단편을 가공성형시킴이 바람직하다.In this case, the transfer step (III), the forming step (IV), and the conveying step (V) are continuously repeated to form the cutting pieces.
또한 상기 가공성형단계(Ⅳ)에서 발생된 분진을 집진기(50)로 흡출시킴이 바람직하다.In addition, it is preferable to suck out the dust generated in the process forming step (IV) to the dust collector (50).
이에 따라, 커트와이어의 성형시간을 단축시키고 제작공정을 단순화하여 작업능률을 향상시키며, 숏의 표면 강도가 향상되어 숏피닝 가공 시 기계적 효율을 높이는 이점이 있다.Accordingly, shortening the molding time of the cut wire, simplifying the manufacturing process to improve the work efficiency, the surface strength of the shot is improved, there is an advantage to increase the mechanical efficiency during shot peening processing.
상기와 같은 구성을 가지는 본 발명에 따른 숏 및 그 제작방법을 다음의 도면을 참조하여 상세히 설명한다. 도 1은 본 발명에 의한 숏의 제조 플로우차트이고, 도 2는 본 발명에 의한 강선절단장치의 사시도이며, 도 3은 본 발명에 의한 숏 성형장치의 단면도이고, 도 4는 본 발명에 의한 숏 성형 상태를 나타낸 사시도이다.The short and the manufacturing method according to the present invention having the configuration as described above will be described in detail with reference to the following drawings. 1 is a flowchart of manufacturing a shot according to the present invention, FIG. 2 is a perspective view of a steel wire cutting device according to the present invention, FIG. 3 is a sectional view of a shot forming apparatus according to the present invention, and FIG. 4 is a shot according to the present invention. It is a perspective view which shows the shaping | molding state.
일반적으로 숏 제작에 사용되는 커트와이어는 롤형태로 감겨있는 강선이 풀리면서 절단장치내로 진입되면 숏의 사용용도에 따라 지정된 소정길이로 절단되어 형성된 미세 절단편이다.In general, the cut wire used for making the shot is a fine cut piece formed by cutting a predetermined length according to the use of the shot when the steel wire wound in a roll form is released into the cutting device.
상기 강선은 구성하는 성분에 따라 인장강도가 달라질 뿐 아니라 지름이 작을수록 인장강도가 크므로 숏피닝에 사용되는 미세한 크기의 숏을 제작하기에 적합한 기계적 성질을 가진다.The steel wire has a mechanical property suitable for producing a fine size shot used for shot peening because not only the tensile strength varies depending on the constituent components but also the smaller the diameter, the larger the tensile strength.
상기 강선을 절단하는 장치는 강선의 전방이송을 안내하는 안내유로(110)가 형성된 직진유도가이드(100)와, 상기 안내유로(110) 상에 설치되어 상기 강선을 가압이송시키고 회전속도에 따라 철선의 이송속도가 조절되는 이송롤러(200)가 구비되며, 외주상에 동일한 크기의 회전칼날이 등간격으로 형성되어 철선을 일정한 길이로 절단시키는 스크류형 절단롤러(300)가 상기 이송롤러(200) 전방에 이격설치된 구조를 가진다.The device for cutting the steel wire is a straight guide guide 100 formed with a guide flow path 110 for guiding the forward movement of the steel wire, and is installed on the guide flow path 110 to pressurize the steel wire and the wire according to the rotational speed The feed roller 200 is provided with a feed roller 200 for controlling the feed speed, and a screw-type cutting roller 300 for cutting the iron wire to a predetermined length is formed on the outer circumference with a rotary blade of the same size at equal intervals. It has a structure spaced apart at the front.
상기와 같은 구성에 따른 강선 절단장치는 상기 직진 유로 가이드(100)로 연속진입하는 강선을 절단칼날이 형성된 상기 절단롤러(300)로 이송시켜 일정한 길이로 절단함으로써 커트와이어를 제작하게 된다.Steel wire cutting device according to the configuration as described above is to produce a cut wire by transferring the steel wire continuously entering the straight flow path guide 100 to the cutting roller 300 is formed with a cutting blade to cut to a certain length.
본 발명은 상기와 같이 강선을 절단하여 형성됨으로써 초기에 원주형상을 가진 커트와이어를 고정밀도의 구형으로 성형하는 제작방법을 안출한 것이며, 본 발명에 의한 숏 성형방법을 따르는 장치는 저장탱크(10), 임펠러(20), 투사면(30), 컨베이어장치(40), 집진기(50)로 구성됨이 바람직하다.The present invention devised a manufacturing method for forming a high-precision spherical wire cut in the initial shape by cutting the steel wire as described above, the apparatus according to the shot forming method according to the present invention is a storage tank (10) ), The impeller 20, the projection surface 30, the conveyor device 40, is preferably composed of a dust collector (50).
상기 투사면(30)은 상기 임펠러(20) 반대편에 이격되어 설치되며, 상기 컨베이어장치(40)는 상기 투사면(30)과 충돌한 투사편을 상기 투사면(30) 하측으로부터 상기 임펠러(20) 상측의 저장탱크(10)로 이송하는 구조를 가진다.The projection surface 30 is installed to be spaced apart from the opposite side of the impeller 20, the conveyor apparatus 40 is a projection piece collided with the projection surface 30 from the lower side of the projection surface 30 the impeller 20 ) Has a structure for transferring to the upper storage tank (10).
상기 숏 성형장치의 상부에 위치한 상기 저장탱크(10)에 저장된 커트와이어는 상기 저장탱크 하부에 형성된 이송로를 따라 하측으로 이송되는 동시에 상기 이송로에 인접하게 설치된 상기 임펠러(20)로 이송된다.The cut wire stored in the storage tank 10 located above the shot forming apparatus is transported downward along the transport path formed at the lower portion of the storage tank and is transferred to the impeller 20 installed adjacent to the transport path.
상기 임펠러(20)로 이송된 절단편은 상기 임펠러(20)의 회동에 의해 반대편에 설치된 상기 투사면(30)으로 투사되며, 상기 투사면(30)은 철에 탄소 및 망간을 첨가하한 망간강으로 형성되며 특히 내마모성이 뛰어난 성질을 가진다.The cutting piece conveyed to the impeller 20 is projected onto the projection surface 30 provided on the opposite side by the rotation of the impeller 20, the projection surface 30 is a manganese steel with carbon and manganese added to iron It is formed and especially has excellent wear resistance.
상기 투사면(30)에 충돌한 상기 커트와이어는 자체 무게와 투사속도에 해당하는 운동에너지 만큼의 충격을 받게되며, 연강으로 형성되어 상기 투사면(30)과의 충돌부가 찌그러지거나 떨어져나가게 된다.The cut wire impacting the projection surface 30 is impacted by the kinetic energy corresponding to its own weight and the projection speed, and is formed of mild steel so that the collision portion with the projection surface 30 is crushed or fallen off.
상기 커트와이어와 상기 투사면(30)과의 충돌에 있어서, 충돌부가 상기 커트와이어의 모서리일 경우에는 다른 부위가 충돌될 때보다 충격력이 작용하는 시간이 짧고 충격면적이 협소해 더 큰 충격력을 받게 되어 더 큰 변형이 이루어지게 된다.In the collision between the cut wire and the projection surface 30, when the impact portion is the edge of the cut wire, the impact time is shorter than when other parts collide, and the impact area is narrow, so that the impact area receives a larger impact force. Thus larger deformations are made.
상기 투사면(30)과의 충돌 후 튕겨나온 절단편은 상기 임펠러(20)와 상기 투사면(30)의 이격공간 하측으로 하강하게되며, 상기 컨베이어장치(40)에 의해 상기 저장탱크(10)로 자동으로 연속 운반된다.The cutting piece bounced off after the collision with the projection surface 30 is lowered below the space between the impeller 20 and the projection surface 30, and the storage tank 10 by the conveyor device 40. Are automatically transported continuously.
상기 저장탱크(10)로 운반된 절단편은 다시 상기 저장탱크(10)의 이송로에 인접하게 설치된 상기 임펠러(20)로 이송되어 상기 투사면(30)으로 투사되는 과정을 반복하여 거치게 된다.The cut pieces conveyed to the storage tank 10 are repeatedly transferred to the impeller 20 installed adjacent to the transport path of the storage tank 10 and projected onto the projection surface 30.
따라서 커트와이어는 상기 임펠러(20)에 의해 상기 투사면(30)으로 투사되는 과정을 연속적으로 반복하여 거치게 됨으로써, 반복횟수가 증가함에 따라 점차 진구에 가깝게 성형되어지며 정밀도가 높아지게 된다.Therefore, the cut wire is continuously and repeatedly subjected to the projection projected onto the projection surface 30 by the impeller 20, and as the number of repetitions increases, the cut wire is gradually formed to be closer to the true sphere and the precision is increased.
숏피닝가공은 숏의 형태가 진구에 가깝고 미세할수록 표면가공이 정밀하게 이루어지지만, 숏의 형태가 매끈하지 않을수록 오히려 대상물이 연삭시간이 짧아지게 되어 정밀한 표면가공이 요구되지 않는 표면처리에 더 유용하므로, 숏피닝가공의 타격물이 되는 대상의 성질과 다듬질 단계에 따라 다양한 형상의 숏이 사용되고 있다.Shot peening is more precise in surface processing as the shape of shot is closer to the real sphere and finer.However, the shorter the shape of shot, the shorter the grinding time is, so it is more useful for surface treatment that does not require precise surface processing. Therefore, shots of various shapes are used according to the properties and finishing stages of the targets to be hitting shots.
본 발명의 숏 제작방법에서는 상기 숏성형장치의 작동시간에 따라 상기 커트와이어의 타격횟수를 조절함으로써 다양한 형상과 정밀도의 숏을 성형하게 되며, 반복 타격되어 숏으로 성형됨으로써 숏의 표면이 경화되어 숏의 피로 수명이 향상된다.In the shot manufacturing method of the present invention, by controlling the number of blows of the cut wire according to the operation time of the shot forming apparatus, shots of various shapes and precisions are formed, and the surface of the shot is hardened by being repeatedly blown into shots. Its fatigue life is improved.
상기와 같이 커트와이어를 투사면(30)에 투사하여 충격력에 의해 마모시킴으로써 숏으로 가공성형하는 과정에서는 상기 커트와이어로부터 미세한 파편이 떨어져나와 분진이 발생하게 된다.As described above, in the process of forming the cut wire into the shot surface by projecting the cut wire to the projection surface 30 and cutting the cut wire into a shot, fine particles are separated from the cut wire to generate dust.
성형과정에서 지속적으로 발생되는 분진은 성형장치 외부로 빠져나와 대기중에 노출되면 대기오염을 유발하게 되며, 성형장치 내부에서도 장치틈새에 집적되어 기계작동에 이상을 가져올 수 있고, 성형중인 커트와이어의 충돌부 및 함몰부 등에 끼여 성형작업의 정밀도를 낮추게 된다.Dust generated continuously during the molding process exits the molding apparatus and is exposed to the atmosphere, causing air pollution. Also, it can accumulate in the equipment gap inside the molding apparatus and cause abnormal operation of the machine. The precision of the molding operation is reduced by being caught in the recesses and depressions.
따라서 상기 투사공정이 이루어짐과 동시에 상기 임펠러(20)와 상기 투사면(30) 사이에 부유하는 분진을 흡출하기 위한 상기 집진기(50)를 설치하여 분진저장탱크로 분진을 집진하는 공정이 이루어짐이 바람직하다.Therefore, the projection process is carried out at the same time the dust collector 50 is installed between the impeller 20 and the projection surface 30 to install the dust collector for collecting dust to the dust storage tank is preferably made Do.
상술한 바와 같은 구성에 의한 본 발명은 커트와이어의 성형시간을 단축시키고 제작공정을 단순화하여 작업능률을 향상시키는 효과가 있다. 또한, 숏의 표면 강도가 향상되어 숏피닝 가공 시 기계적 효율을 높이는 다른 효과가 있다.The present invention by the configuration as described above has the effect of shortening the molding time of the cut wire and simplify the manufacturing process to improve the work efficiency. In addition, the surface strength of the shot is improved, there is another effect of increasing the mechanical efficiency during shot peening processing.
도 1 - 본 발명에 의한 숏의 제조 플로우차트.1-flowchart of production of shots according to the invention.
도 2 - 본 발명에 의한 강선절단장치의 사시도.2-a perspective view of a steel wire cutting device according to the present invention.
도 3 - 본 발명에 의한 숏 성형장치의 단면도.3 is a cross-sectional view of the shot forming apparatus according to the present invention.
도 4 - 본 발명에 의한 숏 성형 상태를 나타낸 사시도.4-a perspective view showing a shot molding state according to the present invention.
< 도면에 사용된 주요 부호에 대한 설명 ><Description of Major Symbols Used in Drawings>
10 : 저장탱크 20 : 임펠러10: storage tank 20: impeller
30 : 투사면 40 : 컨베이어30: projection surface 40: conveyor
50 : 집진기 100 : 직진유도가이드50: dust collector 100: straight guide guide
110 : 안내유로 200 : 이송롤러110: guide flow path 200: feed roller
300 : 절단롤러300: cutting roller
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0013448A KR100524533B1 (en) | 2003-03-04 | 2003-03-04 | manufacturing method of shot |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0013448A KR100524533B1 (en) | 2003-03-04 | 2003-03-04 | manufacturing method of shot |
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| Publication Number | Publication Date |
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| KR20030032980A KR20030032980A (en) | 2003-04-26 |
| KR100524533B1 true KR100524533B1 (en) | 2005-10-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100628886B1 (en) | 2005-01-20 | 2006-09-27 | 이창휘 | A Cutting Machine |
| KR20160017425A (en) | 2014-08-06 | 2016-02-16 | 김경조 | Method for manufacturing shot ball |
| KR101676709B1 (en) | 2016-05-12 | 2016-11-16 | 이혜준 | short ball manufacturing device |
| KR102107507B1 (en) | 2018-10-31 | 2020-05-07 | 대원강업주식회사 | Development of heat treatment method for shot-peening ball |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117548614B (en) * | 2023-11-21 | 2024-06-21 | 滕州市华成金属制品有限公司 | High-strength forging grinding ball, forging device and forging method |
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2003
- 2003-03-04 KR KR10-2003-0013448A patent/KR100524533B1/en active IP Right Grant
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100628886B1 (en) | 2005-01-20 | 2006-09-27 | 이창휘 | A Cutting Machine |
| KR20160017425A (en) | 2014-08-06 | 2016-02-16 | 김경조 | Method for manufacturing shot ball |
| KR101676709B1 (en) | 2016-05-12 | 2016-11-16 | 이혜준 | short ball manufacturing device |
| KR102107507B1 (en) | 2018-10-31 | 2020-05-07 | 대원강업주식회사 | Development of heat treatment method for shot-peening ball |
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| KR20030032980A (en) | 2003-04-26 |
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