WO2017146399A1 - 핀셋 형상의 주름부를 구비한 벨로우즈 및 그 제조방법 - Google Patents
핀셋 형상의 주름부를 구비한 벨로우즈 및 그 제조방법 Download PDFInfo
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- WO2017146399A1 WO2017146399A1 PCT/KR2017/001366 KR2017001366W WO2017146399A1 WO 2017146399 A1 WO2017146399 A1 WO 2017146399A1 KR 2017001366 W KR2017001366 W KR 2017001366W WO 2017146399 A1 WO2017146399 A1 WO 2017146399A1
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- bellows
- flat
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- base material
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D15/00—Corrugating tubes
- B21D15/02—Corrugating tubes longitudinally
- B21D15/03—Corrugating tubes longitudinally by applying fluid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
- F01N13/1816—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/047—Mould construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
- F01N13/1844—Mechanical joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/022—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with a single corrugation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/025—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with several corrugations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/026—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with interior reinforcement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
- F16L9/06—Corrugated pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/10—Exhaust treating devices having provisions not otherwise provided for for avoiding stress caused by expansions or contractions due to temperature variations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/20—Methods or apparatus for fitting, inserting or repairing different elements by mechanical joints, e.g. by deforming housing, tube, baffle plate or parts thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/06—Tubes being formed by assembly of stamped or otherwise deformed sheet-metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/12—Tubes being corrugated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/20—Dimensional characteristics of tubes, e.g. length, diameter
Definitions
- the present invention relates to a bellows having a tweezers-like pleated portion and a method of manufacturing the same, and more particularly, to a bellows having a tweezer-shaped pleated portion and a manufacturing method thereof in order to increase resistance to torsion and restoring force.
- the vehicle increases the output of the engine, and the vibration caused by the engine roll increases when the vehicle starts, starts, brakes, and shifts gears when the engine starts.
- vibration of the exhaust pipe occurs according to the condition of the road surface while driving.
- an exhaust pipe having a muffler is connected to an engine of a vehicle, and an exhaust pipe coupling device (Decoupler) is used to absorb and cushion vibration displacement, impact load, and thermal deformation at the connection portion of the engine and the exhaust pipe. ) Is installed.
- Diesel exhaust pipe coupling device
- the exhaust pipe connecting device in such an installation position requires a small size while firmly supporting the entire exhaust pipe with its own small number of hanger mountings.
- Such an exhaust pipe coupling device is a decoupling element for absorbing displacement caused by an engine roll or vibration transmitted from the road surface through the exhaust system.
- Exhaust pipe couplings are short decoupling components, collectively referred to as bellows, ball joints, and decouplers where the decoupler's total length (total length) approximates 2D of the exhaust pipe diameter. Classified as (short decoupling element).
- the short bellows used in the short decoupling component may not have sufficient flexibility of the bellows, causing early cracking of the bellows or joints of the bellows due to low frequency exhaust system resonance.
- welded diaphragm bellows are formed by welding alternating inside and outside in a state where the diaphragms are overlapped, and early fatigue occurs due to heat curing of the weld, and welding a thin plate having a thickness of 0.2 mm It is difficult to secure a consistent quality, which causes a problem that the manufacturing cost is increased.
- This welding diaphragm bellows has a problem that is difficult to apply to the vehicle due to the problem of productivity.
- Formed diaphragm bellows are molded diaphragm bellows without welding, and unlike the welding method, it is possible to prevent early cracking due to heat hardening, which is required for automobile (vehicle) sectors requiring mass production. It is now possible to apply diaphragms that have not been available.
- the vacuum device is largely composed of a vacuum pump, a vacuum line, an exhaust line.
- One side of the vacuum line is connected to the semiconductor manufacturing equipment that requires a vacuum environment, the other side is connected to the vacuum pump, one side of the vacuum pump is connected to the exhaust line.
- the vacuum line of the vacuum device connects the semiconductor manufacturing equipment and the vacuum pump, which requires a vacuum environment, and the piping of the semiconductor manufacturing equipment is complicated or the vacuum line of the vacuum equipment is horizontal or vertical depending on the installation location of the semiconductor manufacturing equipment and the vacuum apparatus.
- Flexible and flexible bellows are used instead of pipes in parts where flexibility is not possible.
- bellows are each coupled to the flange at both ends, it can be connected to the exhaust line, vacuum pump, semiconductor process chamber through the flange.
- a bellows tube 60 formed of a metal material and having a corrugated tube shape having an acid and a valley is provided to be attached to a vacuum line connection part, and the bellows tube A pair of flanges 10 coupled to both ends of the pair 60, an interlock hose 20 to which both ends of the bellows tube 60 are inserted and coupled to the pair of flanges 10, and the pair Insertion grooves formed in the circumferential direction, respectively, and the insertion portion 45 of the interlock hose 20 is inserted into the insertion groove in the flange 10 of the, and the welded portion is exposed to corrosive exhaust gas to corrode or crack
- the liner is welded outside of the flange 10 in which the flange 10 and the interlock hose 20 are outside of the exhaust passage with the insert 45 inserted into the insertion groove of the flange.
- Being bellows Disclosed is a device.
- Patent Document 2 has a step of enclosing the core pin and the separation rod in the split cavity and injection molding the elastic bellows portion around the core pin and the separation rod, the core pin and the separation rod has a longitudinal axis substantially coincide with each other, the elastic An injection molding step having a bellows portion having a substantially rigid first open end and an elastic second open end, opening the split cavity to separate the elastic bellows portion from the core pin, and radiating the elastic bellows portion from the core pin. Injecting the elastic bellows portion outwardly from the core pin, while expanding the elastic bellows portion outwardly from the core pin and pushing the first open end of the substantially rigid bellows portion to the separating rod to remove the elastic bellows portion from the core pin.
- the elastic bellows from the It discloses how.
- Patent Document 1 Republic of Korea Patent Publication No. 10-2015-0132824 (Nov. 26, 2015 published)
- Patent Document 2 Republic of Korea Patent Publication No. 2000-0257915 (2000.00.07 registration)
- the bellows is formed as a spiral hose, and as shown in FIG. 2, there is a problem in that a cutting and assembly process is difficult as a spiral hose and material loss occurs. . That is, if the spiral is not easy to cut and it is difficult to maintain the airtightness of the cut surface itself, accordingly there was a problem to maintain the airtight by overlapping a number of acids.
- An object of the present invention is to solve the problems described above, the bellows having a tweezers-like wrinkles that can increase the number of wrinkles (acids) of the bellows to increase the resistance and resilience to the torsion and its manufacture To provide a way.
- Another object of the present invention is to provide a bellows having a tweezers-shaped pleat and a method of manufacturing the same, which can easily realize a cutting and assembly process when the bellows is applied.
- the bellows according to the present invention includes a first flat part having a flat cylindrical shape, a second flat part having a flat cylindrical shape, and provided at a side opposite to the first flat part, each of the first flat parts. And a wrinkle portion provided between the second flat portion and a tweezers shape, wherein each of the plurality of wrinkle portions is sequentially connected to each other.
- each of the corrugations is formed in parallel with the first surface and the second surface provided in succession to the first surface, the first surface and the second surface is in close contact, the first surface and
- the connecting portion of the second surface may protrude to form a circular protrusion, a third surface extending from the first surface and convex toward the outside, and a fourth surface extending from the second surface and convex toward the outside.
- a concave portion having a convex portion provided with a concave portion extending from the third surface and concave toward the inside and a sixth surface extending from the fourth surface and concave toward the inside.
- the parts are characterized in that they are connected to each other at portions of the recesses.
- the distance between the third and fourth surfaces is greater than the distance between the fifth and sixth surfaces.
- the wrinkles are characterized in that each formed sequentially in a hydro-forming (hydro-forming) method.
- the method for manufacturing a bellows according to the present invention in order to achieve the above object is (a) inserting a bellows forming base material on the outside of the head, (b) the base material after maintaining the first flat surface for the base material (C) applying pressure toward a base material portion provided between the support device and the movable device, and (d) after the base material is formed to a predetermined size, Moving toward the support device to form the pleats, wherein the pleats are each sequentially formed in a hydro-forming manner.
- the pleats are formed in parallel with the first surface and the second surface continuously provided on the first surface, and the first surface and the second surface are in close contact with each other.
- the connecting portion between the surface and the second surface is a protrusion projecting in a circular shape, a third surface extending from the first surface and convex toward the outside, and a fourth surface extending from the second surface and convex toward the outside.
- the inner peripheral side of the said support device is formed in the shape corresponding to the 1st surface of the protrusion part of the said corrugation part, the 3rd surface of the convex part, and the 5th surface of the recessed part,
- the inner peripheral part of the said movable device The side is formed in the shape corresponding to the 2nd surface of the protrusion part of the said corrugation part, the 4th surface of the convex part, and the 6th surface of the recessed part.
- the effect of increasing the resistance against torsion and the restoring force can be obtained by providing the tweezers having the tweezers shape.
- a bellows having a tweezers-like pleated portion and a method of manufacturing the same, when the bellows is mounted on an apparatus such as an exhaust pipe by separating the flat portion and the pleated portion and forming them in a hydroforming order, The effect of simplifying and preventing the touch of the material is also obtained.
- FIG. 1 is a perspective view showing the configuration of a conventional bellows device
- Figure 2 is a photograph for explaining the problem of the bellows device shown in FIG.
- FIG. 3 is a perspective view of a bellows having a tweezers-shaped wrinkles according to the present invention
- FIG. 4 is a view showing a state in which the double interlock hose is provided in the bellows of FIG.
- FIG. 5 is a view for explaining the configuration of the wrinkle portion shown in FIG.
- FIG. 6 is a view for explaining a manufacturing process of the bellows according to the present invention.
- the half is made of a diaphragm bellows and the other half is made of the same shape as the general bellows.
- FIG. 3 is a perspective view of a bellows having a tweezer-shaped crease according to the present invention
- FIG. 4 is a view illustrating a state in which a double interlock hose is provided in the bellows of FIG. 3
- FIG. 5 is a configuration of the crease illustrated in FIG. 3. It is a figure for demonstrating.
- the bellows 100 may include a first flat part 110 having a flat cylindrical shape, a flat cylindrical shape, and a first provided on a side opposite to the first flat part 110.
- the second flat part 120 each of which is provided between the first flat part 110 and the second flat part 120, is provided with a corrugation part 130 having a tweezers shape.
- the bellows 100 according to the present invention may be used, for example, to connect a vacuum line between components of a commercial vehicle exhaust pipe connection or a component of a semiconductor manufacturing facility, to improve the flow of exhaust gas.
- each is sequentially connected to each other to form a corrugated pipe having elasticity. That is, the pleats 130 according to the present invention are each sequentially formed in a hydro-forming method.
- first flat part 110 may be inserted into a flange to be mounted to, for example, the inlet of the exhaust gas
- the second flat part 120 may be inserted into a flange to be mounted to the discharge part of the exhaust gas.
- the bellows provided in the form of a continuous corrugated portion formed by the spiral hose can be easily assembled by eliminating the problem of the cutting and assembly process.
- the first flat portion 110 and the second flat portion 120 are not provided with corrugations, respectively, it is possible to prevent material loss of the base material, for example, stainless steel, as compared to the bellows shown in FIG. 2.
- a double interlock hose 300 is provided, and a double interlock hose 300 is provided between the bellows 100 and the double interlock hose 300.
- the wire mesh 300 is installed to mitigate the impact by the bellows 100 and the bellows 100, the double interlock hose 200, and the wire mesh 300 are connected by the coupling ring 400. Can be fixed.
- the pleats 130 provided in the bellows 100 have a first surface 131 and a second surface 132 continuously formed in parallel with the first surface 131.
- the first surface 131 and the second surface 132 are in close contact with each other, and the connecting portion of the first surface 131 and the second surface 132 is protruded to have a circular shape 137.
- Convex having a third surface 133 extending from the first surface 131 and having a convex shape toward the outside and a fourth surface 134 extending from the second surface 132 and having a convex shape toward the outside.
- the fifth surface 135 extending from the third surface 133 and having a concave shape toward the inside, and the sixth surface 136 extending from the fourth surface 136 and having a concave shape toward the inside, It consists of recesses provided.
- the crease 130 has a corrugated pipe function of the bellows 100 by connecting the fifth surface 135 of one concave portion and the sixth surface 136 of the other concave portion adjacent to each other.
- the pleats 130 according to the present invention have a fifth surface 135 and a sixth surface 136 having a recess between the third surface 133 and the fourth surface, which are convex portions. It is formed larger than the gap between it has a shape such as pincette (pincette).
- the pleats 130 according to the present invention have a shape such as tweezers as shown in FIG. 5, for example, the recessed portion may be impacted by a sudden discharge of exhaust gas, an external impact applied to the vehicle, or the like. Even when receiving, the stiffness of the pleats 130 is increased by the support force and the restoring force by the convex portions, thereby preventing damage to the pleats 130 even when the impact applied to the bellows 100 is excessive.
- the protruding portion is connected to the first surface 131 and the second surface 132 to protrude to form a circular shape 137, the wrinkle portion 130 of the bellows 100 is formed. It is possible to prevent breakage of the edge portion from the impact applied to the.
- FIG. 6 is a view for explaining the manufacturing process of the bellows of the bellows according to the present invention
- Figure 6a is a view showing that the base material is in a flat state
- Figure 6b shows a state in which pressure is applied to the base material by hydroforming It is a figure
- FIG. 6C is a figure which shows the state moved by the movable device.
- the base material 101 formed in a cylindrical shape is supplied along the outer circumference of the cylindrical head 102.
- the base material is, for example, using a stainless steel material, but is not limited thereto, it is sufficient that the material to which the bellows mounting target and the hydroforming can be applied.
- the inner diameter of the cylindrical base material 101 uses, for example, ⁇ 103.7 to comply with the specifications of the exhaust pipe of a commercial vehicle, but is not limited thereto, and may be added or decreased corresponding to the outer diameter of the exhaust pipe of a device to be mounted.
- the corrugated pipe 130 maintains a length corresponding to a portion of the cylindrical first flat portion 110, for example, a length of 23 mm of the first flat portion 110. Is generated.
- a cylindrical first support ring 103 and a second support ring 105 are formed on the outer circumference of the head 102 at intervals corresponding to the lengths enough to form the corrugated pipe 130 by forming.
- the support device 104 and the movable device 106 are attached to the first support ring 103 and the second support ring 105, respectively.
- the support device 104 consists of a semi-circular arc-shaped first support device and a second support device, each of which can be moved up and down in the state shown in FIG. 6A, and fits the first support ring 103 with respect to the base material 101. It prevents the movement of the base metal 101 by touching.
- the movable device 106 can move to the left after the hydroforming is performed on the base 101 after interfering with the second support ring 105 to prevent movement of the base 101 in the state shown in FIG. 6A. After the formation of the wrinkle portion 130 is mounted to be movable to the right.
- the outer circumferential side of the support device 104 is formed in a flat surface to enable the withdrawable up and down between the preformed pleats 130 as shown in FIG. 6A, and the inner circumferential side is the pleats 130 shown in FIG. 5. Is formed in a shape corresponding to the first surface 131 of the protrusion, the third surface 133 of the convex portion, and the fifth surface 135 of the concave portion.
- the inner circumferential side of the movable device 106 has a shape corresponding to the second surface 132 of the protruding portion of the pleated portion 130, the fourth surface 134 of the convex portion, and the sixth surface 136 of the concave portion shown in FIG.
- the outer peripheral side is formed as a movable structure, and is not limited to a particular shape.
- the head 102 is provided with a pressure supply hole 107 so that hydroforming is performed by applying a predetermined pressure, for example, pneumatic pressure or hydraulic pressure, to the base material 101.
- a predetermined pressure for example, pneumatic pressure or hydraulic pressure
- the state shown in FIG. 6A that is, the base material 101 is kept flat between the first support ring 103 and the second support ring 105, and the support device ( The head 102 and the base material 101 are kept in a closed state by the 104 and the movable device 106.
- the base material 101 is formed by the head 102 of the head 102 according to the applied pressure. Foaming occurs in the circumferential direction. That is, hydroforming of the base material 101 is performed. Such hydroforming is performed only to the extent that the wrinkles 130 can be formed only in the portion formed when the movable device 106 moves to the left side.
- the movable device 106 moves to the left in the state shown in FIG. 6B to maintain the state shown in FIG. 6C for a certain time.
- Such movement of the base material 101, pressurization through the head 102, up and down movement of the support device 104, and left and right movement of the movable device 106 are the bellows shape information and material information preset in the control unit (not shown). Will be automatically executed.
- the holding time of the state shown in FIG. 6C is prescribed
- the first and second support devices After being formed in one wrinkle portion 130 as shown in FIG. 6C, the first and second support devices respectively move upward and downward in the state shown in FIG. 6C, and the base material 101 is preset. Supplied by the length, the movable device 106 moves to the right. Subsequently, the first and second support devices move downward and upward, respectively, in contact with the first support ring 103, and the movable device 106 contacts the second support ring 105 in the state of FIG. 6A. As described above, the wrinkles 130 are sequentially formed by advancing to the states of FIGS. 6B and 6C.
- the pleats 130 according to the present invention are formed sequentially.
- the base material 101 is simply supplied corresponding to the length of the second flat portion 120 and the first flat portion 110, and then the wrinkles continue.
- a portion a plurality of bellows can be produced continuously. Therefore, in use, the first flat portion 110, the wrinkle portion 130 and the second flat portion 120 is provided by simply cutting between the second flat portion 120 and the first flat portion 110.
- One bellows can be easily manufactured.
- the resistance and restoring force against torsion applied to the crease can be increased.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Diaphragms And Bellows (AREA)
- Exhaust Silencers (AREA)
- Sealing Devices (AREA)
Abstract
Description
Claims (5)
- 평탄한 원통형으로 이루어진 제1 평탄부,평탄한 원통형으로 이루어지고, 상기 제1 평탄부에 대향하는 측에 마련된 제2 평탄부,각각이 상기 제1 평탄부와 제2 평탄부 사이에 마련되고 핀셋 형상으로 이루어진 주름부를 구비하고,상기 다수의 주름부는 각각이 서로 순차적으로 연결되고,각각의 주름부는 제1면과 상기 제1면에 연속하여 마련된 제2면이 평행하게 이루어지고, 상기 제1면과 제2면이 밀착되고, 상기 제1면과 제2면의 연결 부분은 돌출되어 원형으로 이루어진 돌출부, 상기 제1면에서 연장되어 외측을 향해 볼록 형상으로 이루어진 제3면과 상기 제2면에서 연장되어 외측을 향해 볼록 형상으로 이루어진 제4면을 구비한 볼록부, 상기 제3면에서 연장되어 내측을 향해 오목 형상으로 이루어진 제5면과 상기 제4면에서 연장되어 내측을 향해 오목 형상으로 이루어진 제6면을 구비한 오목부로 이루어지고,상기 주름부는 상기 오목부의 부분에서 서로 연결된 것을 특징으로 하는 벨로우즈.
- 제1항에서,상기 제3면과 제4면 사이의 간격은 상기 제5면과 제6면 사이의 간격보다 크게 형성된 것을 특징으로 하는 벨로우즈.
- 제1항에서,상기 주름부는 하이드로 포밍(hydro-forming) 방식으로 각각이 순차적으로 형성된 것을 특징으로 하는 벨로우즈.
- (a) 헤드의 외부에 벨로우즈 형성용 모재를 삽입하는 단계,(b) 상기 모재에 대해 제1 평탄면을 유지한 후 상기 모재를 지지 디바이스와 가동 디바이스로 지지하는 단계,(c) 상기 지지 디바이스와 가동 디바이스 사이에 마련된 모재 부분을 향해 압력을 부가하는 단계,(d) 상기 모재가 소정의 크기로 포밍된 후 상기 가동 디바이스가 지지 디바이스를 향해 이동하여 주름부를 형성하는 단계를 포함하고,상기 주름부는 하이드로 포밍(hydro-forming) 방식으로 각각이 순차적으로 형성되고,상기 주름부는 제1면과 상기 제1면에 연속하여 마련된 제2면이 평행하게 이루어지고, 상기 제1면과 제2면이 밀착되고, 상기 제1면과 제2면의 연결 부분은 돌출되어 원형으로 이루어진 돌출부, 상기 제1면에서 연장되어 외측을 향해 볼록 형상으로 이루어진 제3면과 상기 제2면에서 연장되어 외측을 향해 볼록 형상으로 이루어진 제4면을 구비한 볼록부, 상기 제3면에서 연장되어 내측을 향해 오목 형상으로 이루어진 제5면과 상기 제4면에서 연장되어 내측을 향해 오목 형상으로 이루어진 제6면을 구비한 오목부로 이루어진 것을 특징으로 하는 벨로우즈의 형성방법.
- 제4항에서,상기 지지 디바이스의 내주 측은 상기 주름부의 돌출부의 제1면, 볼록부의 제3면, 오목부의 제5면에 대응하는 형상으로 형성되고, 상기 가동 디바이스의 내주 측은 상기 주름부의 돌출부의 제2면, 볼록부의 제4면, 오목부의 제6면에 대응하는 형상으로 형성된 것을 특징으로 하는 벨로우즈의 형성방법.
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US16/079,734 US11092062B2 (en) | 2016-02-25 | 2017-02-08 | Bellows having tweezers-shaped corrugated portions and method for manufacturing same |
EP17756737.7A EP3421746B1 (en) | 2016-02-25 | 2017-02-08 | Bellows having tweezers-shaped corrugated portions and method for manufacturing same |
JP2018539851A JP6715939B2 (ja) | 2016-02-25 | 2017-02-08 | ピンセット状の波形状部を備えるベローズ及びその製造方法 |
CN201780000204.7A CN107306502B (zh) | 2016-02-25 | 2017-02-08 | 具有镊子形状的皱纹部的波纹管及其制作方法 |
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KR1020160022764A KR101700285B1 (ko) | 2016-02-25 | 2016-02-25 | 핀셋 형상의 주름부를 구비한 벨로우즈 및 그 제조방법 |
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WO2019076987A1 (de) * | 2017-10-17 | 2019-04-25 | Boa Balg- Und Kompensatoren-Technologie Gmbh | Metallbalg und verfahren zum herstellen eines metallbalgs |
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KR20190037950A (ko) | 2017-09-29 | 2019-04-08 | 조경상 | 이중 벨로즈 장치 및 그의 제조방법 |
KR102406140B1 (ko) * | 2017-10-30 | 2022-06-07 | 현대자동차 주식회사 | 배기열 회수장치 |
JP6926044B2 (ja) * | 2018-09-25 | 2021-08-25 | 矢崎総業株式会社 | コルゲートチューブ及びワイヤハーネス |
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JP6715939B2 (ja) | 2020-07-01 |
CN107306502A (zh) | 2017-10-31 |
US11092062B2 (en) | 2021-08-17 |
KR101700285B1 (ko) | 2017-01-26 |
US20190048780A1 (en) | 2019-02-14 |
EP3421746C0 (en) | 2023-06-21 |
EP3421746B1 (en) | 2023-06-21 |
JP2019503462A (ja) | 2019-02-07 |
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EP3421746A4 (en) | 2019-12-25 |
EP3421746A1 (en) | 2019-01-02 |
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