CN109967822A - Acetylene cutting torch and its production technology - Google Patents
Acetylene cutting torch and its production technology Download PDFInfo
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- CN109967822A CN109967822A CN201910350612.6A CN201910350612A CN109967822A CN 109967822 A CN109967822 A CN 109967822A CN 201910350612 A CN201910350612 A CN 201910350612A CN 109967822 A CN109967822 A CN 109967822A
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- cutting torch
- mouth
- prefabricated component
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- interior mouth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/10—Auxiliary devices, e.g. for guiding or supporting the torch
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a kind of acetylene cutting torch, cutting torch one end is equipped with inlet end, and the other end is equipped with outlet side, and inlet end is equipped with admission gear, and outlet side is equipped with flame spouting mechanism, and cutting torch further includes Yang Liu mechanism, oxygen stream mechanism connection inlet end and outlet side；Wherein, acetylene cutting torch includes Wai Zui and interior mouth, and interior muzzle is set in outer mouth, and mixed air cavity is equipped between Nei Zui and outer mouth, and mixed air cavity is connected to admission gear and flame spouting mechanism；Yang Liu mechanism is penetratingly set in interior mouth；The first sealed end and the second sealed end are formd after Wai Zui and the cooperation of interior mouth, flame spouting mechanism is set at the second sealed end.The invention also discloses the production technologies of above-mentioned acetylene cutting torch, and using copper rod as raw material, first cold-heading processes to obtain the prefabricated component of Wai Zui and interior mouth, carries out forging process after the two is socketed, it is made to be integrated into an overall structure.The present invention it is easy to process, can flame pressure it is more uniform；Have the characteristics that feed intake less, process velocity it is fast, reduce production cost.
Description
Technical field
The present invention relates to gas flame cutting more particularly to a kind of acetylene cutting torch and its production for gas flame cutting
Technique.
Background technique
Gas cutting is to generate high temperature using fuel gas and oxygen mix burning, and metal is preheating to molten condition, is borrowed simultaneously
Help blowing for high pressure cutting oxygen stream to cut and form gas cutting seam, to achieve the purpose that metal is cut.Gas cutting technology is extensive
Metal cutting field applied to all kinds of manufacturing industry and other industry, wherein cutting torch is as a critical component, to entire cutting
Performance influence it is most important.
Traditional cutting torch generally uses brass or red copper to prepare, such as the hair of Patent No. CN200910155486.5
Bright patent " a kind of Cutting nozzle for cutting torch and its processing method " discloses a kind of processing method of cutting torch, including multiple wear steel wire, pulls out steel
The cutting torch of the punch out step of silk, general oxy-acetylene cutting is mostly monolithic construction and draws/be processed into after using punching, and
For red copper material, brill micropore, deep hole are very difficult on it, cause time-consuming, laborious, expense material, and have at high cost, raw material
Waste serious problem.The processing of current acetylene cutting torch requires the technological operation of technical staff very high, and one is not suitable for
It is manufactured in automated production, two, which carry out technique succession, needs to take a long time.
Split type cutting torch structure combination is widely used on the cutting torch of oxygen-propane cutting at present, with convenient for production excellent
Point.Since the upper explosion limit of acetylene is 8.4 times of propane, and flame propagation speed, in propane, risk is much larger than propane,
Since the cooperation of split type component is not accurate enough, for oxy-acetylene cutting, back draft phenomenon is easily generated, gives operation band
Carry out security risk, therefore generally produces acetylene cutting torch by carrying out the technique of overall processing to red copper bar.In addition, at present on the market
Mixed gas passage in acetylene cutting torch often small volume, and be first to flow into cutting torch again after external mix, since inner cavity is narrow
It is easy to cause the uneven of gas in cutting torch.
Therefore, those skilled in the art is dedicated to developing a kind of acetylene cutting torch and its production technology, than existing life
Production. art process velocity is fast, reduces difficulty of processing, saves processing cost, product consumption raw material is few, and gas mixing in use
More sufficiently, uniformly, there is higher safety.
Summary of the invention
In view of the above drawbacks of the prior art, the technical problem to be solved by the present invention is to the oxy-acetylenes of red copper material
Mixed air cavity the problem of leading to undercompounding small in size in the cutting torch processing difficulties of cutting, the cutting torch of production.
To achieve the above object, the present invention provides a kind of acetylene cutting torch, cutting torch one end is equipped with inlet end, and the other end is equipped with
Outlet side, inlet end are equipped with admission gear, and outlet side is equipped with flame spouting mechanism, and cutting torch further includes Yang Liu mechanism, oxygen stream mechanism connection
Inlet end and outlet side；Wherein, acetylene cutting torch includes Wai Zui and interior mouth, and interior muzzle is set in outer mouth, sets between Nei Zui and outer mouth
There is mixed air cavity, mixed air cavity is connected to admission gear and flame spouting mechanism；Yang Liu mechanism is penetratingly set in interior mouth；Wai Zui with it is interior
The first sealed end and the second sealed end are formd after mouth cooperation, flame spouting mechanism is set at the second sealed end.
Preferably, Wai Zui and interior mouth are made of red copper.The fusing point of red copper is high, thermal conductivity is good, can preferably radiate, and
The molten iron to splash in gas cutting will not be cohered damages cutting torch on cutting torch, to extend the service life of cutting torch.
Further, cutting torch both ends fit closely the first sealed end and the second sealed end by plastic processing, by outer mouth
It is integrated into an overall structure with interior mouth.Other than flame spouting mechanism is formed in the second sealed end, between Wai Zui and interior mouth
One sealed end and the second sealed end are sealings.
Further, the nearly inlet end of interior mouth is recessed air drain, and air drain is connected with admission gear, and the downside of air drain is one
Protruding portion.By air drain, the sufficiently conductive mixed air cavity of admission gear's energy, protruding portion makes the middle part of interior mouth keep higher intensity simultaneously
And realize existing product to burning torch in the consistency matched.
Further, outer mouth is equipped with link slot in inlet end, and interior mouth is equipped with connected unit, link slot and connected unit in inlet end
Match, connected unit is embedded in link slot and compresses the first sealed end of composition.Specifically, link slot and connected unit are interference fitted, and are guaranteed
Leakproofness and bond strength.
Further, admission gear includes the multiple air inlets circumferentially uniformly distributed along connected unit, and air inlet runs through connected unit
And it is connected to gaseous mixture cavity.Preferably, air inlet is set as 6.
Further, Yang Liu mechanism is successively made of several segments oxygen runner from inlet end to outlet side, and each oxygen runner
Inside inlet end is sequentially reduced to outlet side without leave, by adjusting Yang Liu mechanism inner diameter size, to reach the effect of adjustment gas flow
Fruit.
Further, flame spouting mechanism includes multiple equally distributed fire jetting holes, and fire jetting hole is connected to gaseous mixture cavity.It is preferred that
Ground, fire jetting hole are set as 6.
The present invention also provides the production technologies of above-mentioned acetylene cutting torch, comprising the following steps:
(1) using copper rod as raw material, it is processed into outer mouth prefabricated component and interior mouth prefabricated component, the outer mouth prefabricated component respectively
For the cannula structure with link slot, the interior mouth prefabricated component is the column construction with connected unit, has inlet end and outlet
The outer diameter of mouth prefabricated component is less than the internal diameter of outer mouth prefabricated component in holding；
(2) it will be packed into outer mouth prefabricated component by the interior mouth prefabricated component of processing, in inlet end, connected unit interference fit is poured
Link slot and be combined into one, formed the first sealed end；
(3) outer mouth prefabricated component and interior mouth prefabricated component are forged into molding in outlet side, forms the second sealed end, obtains cutting torch
First product；
(4) first product is finished according to product requirement, in inlet end and outlet side tack, chamfering, to the outer of first product
Wall vehicle goes out outer circle, and outlet side processes oblique angle and forms the cutting torch mouth that head outer diameter becomes small, its external parameter is made to meet design
It is required that outer surface of then polishing, dry after cleaning, final products are obtained.
Further, high precise equipment (such as machining center) internally mouth prefabricated component processing is selected, is formed through oxygen stream at center
Air inlet is circumferentially uniformly got in inlet end by mechanism.
Optionally, when processing interior mouth prefabricated component by cold-heading, the connector of connection gas circuit is processed in inlet end.
Preferably, producing raw material used is red copper bar.
Further, in step (1), lateral edge outer wall inwardly cuts outgassing groove under the connected unit of interior mouth prefabricated component, air drain with
Admission gear is connected, and a protruding portion is formed on the downside of air drain.
Further, in step (1), Yang Liu mechanism is processed into the channel being made of several segments oxygen runner, and each oxygen runner
Interior inlet end without leave be sequentially reduced to outlet side.
In one embodiment of the invention, the closing face in outlet side between interior mouth prefabricated component and outer mouth prefabricated component is worn
Hole penetrates steel wire according to cutting torch mouth specification along hole, and further finish forge then extracts steel wire, obtain cutting torch to form fire jetting hole
First product；
In a preferred embodiment of the invention, in advance in the outlet side of interior mouth prefabricated component along outer wall according to fire jetting hole
Setting position mills out elongated slot, in step (3), after penetrating steel wire according to cutting torch mouth specification in elongated slot, by forging and forming, outside
Mouth prefabricated component and interior mouth prefabricated component engage and the aperture of elongated slot are made to be contracted to gage Size into fire jetting hole.What the embodiment provided
Method is processed in interior mouth outer wall, simple and easy, facilitates the quick positioning of fire jetting hole, and as sealing surface generates spray together
Fire hole, will not cause the deformation in duct due to reprocessabilty, and reduce multi-section conventional processes, not need to beat by complicated
Hole operation generates fire jetting hole, improves processing efficiency and machining accuracy.
It is similar with above preferred embodiment, optionally, in interior mouth prefabricated component outlet side according to the setting position of fire jetting hole
Punching, penetrates steel wire in beaten hole, after interior mouth prefabricated component and outer mouth prefabricated component are fitted to each other, keeps outer mouth pre- by forging
Product and interior mouth prefabricated component reduce punched aperture into fire jetting hole.
In another preferred embodiment of the invention, elongated slot, step (3) is pre-machined out in the inner wall of outer mouth prefabricated component
In, steel wire is selected, steel wire is penetrated from the hole of outlet side elongated slot, then outer mouth prefabricated component and interior mouth prefabricated component are existed by forging and stamping
Outlet side, which combines and deforms the aperture of elongated slot, to be reduced into fire jetting hole.The method that the embodiment provides is that externally mouth is prefabricated in advance
Part is processed, and is equally had the advantages that simple and easy, high-efficient.
The present invention has following technical characterstic:
(1) in acetylene cutting torch structure, both ends seal and constitute mixed air cavity between Wai Zui and interior mouth, further pass through forging
It beats and forms an overall structure, have and compare the bigger mixed air cavity volume of traditional product, gas mixing can be made more abundant,
It is more uniform that 6 hole flame pressure are set evenly；
(2) production technology of acetylene cutting torch is forged integral again using two components of cold-heading Wai Zui and interior mouth respectively
Mode, have the characteristics that feed intake less, process velocity it is fast, reduce production cost, and overcome traditional red copper fire jetting hole
The problem of processing difficulties.
(3) for the acetylene cutting torch product of traditional export trade, the cutting torch acceptance of integral type processing is higher, and forging of the invention
The structure for beating one, it is in appearance and indistinction with monoblock type product on the market, easy to spread.
It is described further below with reference to technical effect of the attached drawing to design of the invention, specific structure and generation, with
It is fully understood from the purpose of the present invention, feature and effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the acetylene cutting torch of a preferred embodiment of the invention.
Fig. 2 is the structural schematic diagram of the inlet end of acetylene cutting torch shown in FIG. 1.
Fig. 3 is the structural schematic diagram of the outlet side of acetylene cutting torch shown in FIG. 1.
Fig. 4 is the structural schematic diagram of a reference example of the acetylene cutting torch of opposite Fig. 1.
Fig. 5 is the structural schematic diagram of another embodiment of acetylene cutting torch of the invention.
Fig. 6 is the structural schematic diagram of another embodiment of acetylene cutting torch of the invention.
In figure, 100 outer mouths, 110 link slots, mouth in 200,210 Yang Liu mechanisms, 211 first oxygen runners, 212 second oxygen streams
Road, 213 third oxygen runners, 220 connected units, 230 air drains, 240 protruding portions, 300 mixed air cavities, 400 inlet ends, 410 air inlet machines
Structure, 500 outlet sides, 510 flame spouting mechanisms.
Specific embodiment
It is one embodiment of acetylene cutting torch provided by the invention, including outer mouth 100 and interior mouth 200, outer mouth as shown in Figure 1
100 and interior mouth 200 be made of red copper, interior mouth 200 is sheathed in outer mouth 100, and one end of cutting torch is equipped with inlet end 400, the other end
Equipped with outlet side 500.The inlet end of interior mouth 200 has cylindricality connector.
Mixed air cavity 300 is equipped between interior mouth 200 and outer mouth 100, concrete shape is for example, outer mouth 100 is sleeve shaped
Structure, interior mouth 200 are long column shape, form the mixed air cavity 300 of annular after the two combination in-between.Inlet end 400 is equipped with
Admission gear 410, admission gear 410 are connected to inlet end 400 and mixed air cavity 300, and outlet side 500 is equipped with flame spouting mechanism 510, spray
Lighter structure 510 is connected to mixed air cavity 300 and outlet side 500.Cutting torch further includes Yang Liu mechanism 210, and Yang Liu mechanism 210 runs through interior mouth
Inlet end 400 and outlet side 500 are connected in 200.
Outer mouth 100 and interior mouth 200 cooperatively form the first sealed end and second close respectively at inlet end 400 and outlet side 500
Sealing end, mixed air cavity 300 are enclosed between the first sealed end and the second sealed end.More specifically, in acetylene cutting torch of the invention
In, other than flame spouting mechanism 510, the first sealed end and the second sealed end between outer mouth 100 and interior mouth 200 are sealings.
As preferred one embodiment, cutting torch both ends fit closely the first sealed end and the second sealed end by forging, by outer mouth
100 and interior mouth 200 be integrated into an overall structure.
Interior mouth 200 is equipped with connected unit 220 in inlet end 400, structure as shown in figure 1, and connected unit 220 is the outer of interior mouth 200
The ring-shaped step structure that wall outwardly protrudes, for being cooperatively connected with the end of outer mouth 100.It is corresponding with 220 structure of connected unit
Ground, outer mouth 100 are equipped with link slot 110 in inlet end 400, and link slot 110 is specially the annular that outer mouth 100 is process in end
Slot, the internal diameter of link slot 110 extend 110 lower end of link slot with a tapering transition face slightly larger than the internal diameter at interior 200 middle part of mouth
To interior 200 middle part of mouth.When interior mouth 200 is set in outer mouth 100, connected unit 220 is embedded in link slot 110, and connected unit 220 and company
Access slot 110 is interference (silk rolling, connected unit size are only slightly larger than link slot) cooperation, makes connected unit 220 by link slot by squeezing
110 inner walls are tightly affixed and form the first sealed end after compressing；Preferably, the insertion of the depth Yu connected unit 220 of link slot 110
Depth is consistent, and 110 top and bottom of link slot connect with the outer wall of connected unit 220 after engaging the two；Specifically, link slot
110 tops connect with the step surface of the recessed formation of connected unit 220, and 110 bottom of link slot and the lower end surface of connected unit 220 offset,
Since link slot 110 is the tapering transition face that internal diameter reduces downwards, therefore form seal.Pass through connected unit 220 and link slot
110 mating connection, strengthens the connection sealing of interior mouth 200 and outer mouth 100, while increasing the structural strength of inlet end.
The admission gear 410 of interior mouth 200 is connected to mixed air cavity 300 through connected unit 220, along the circumferential equal of connected unit 220
The multiple air inlets of cloth, as shown in Figure 2.Air inlet is preferably set to 6.In the case where the nearly inlet end of interior mouth 200 is located at connected unit 220
The outer wall of interior mouth 200 is optionally formed recessed air drain 230 to internal cutting by the position of side, is originated and is cut below connected unit 220
An annular groove out, it is corresponding with the tapered surface of 110 downside of link slot, and it is connected to air inlet, which is increased
The volume of gaseous mixture body cavity is more advantageous to the uniform mixing of gas.However, if only setting air drain 230 will reduce the use of interior mouth
Doses reduces the weight of the cutting torch of cutting torch of the invention compared with the existing technology, is illustrated in figure 4 a reference example.To guarantee
Cutting torch of the invention is able to maintain that equivalents intensity, and keeps other existing cutting torch and burning torch in matching degree, load-carrying
The downside of consistency, the air drain 230 of interior mouth 200 is a protruding portion 240, and protruding portion 240 is located at the middle section of interior mouth 200, from air drain
230 lower ends are risen, and through a conical surface transition, outer diameter is incrementally increased into column construction.Another effect of above structure is, gas pass through into
When mechanism of qi structure is reached in mixed air cavity, disturbance effect is generated by protruding portion, the mixing of air-flow is exacerbated, makes it through while reaching
The effect for further mixing gas has been arrived, the quality of filling gas of venthole is improved.
Yang Liu mechanism 210 is the runner through interior mouth 200, from inlet end 400 to outlet side 500 successively by the first oxygen runner
211, conical section and the second oxygen runner 212 composition, and the internal diameter of the first oxygen runner 211 is greater than the second oxygen runner 212, the first oxygen stream
Road 211 is connected to the second oxygen runner 212 by conical section transition, and the second oxygen runner 212 leads directly to outlet side.
The outlet side 500 of cutting torch forms multiple equally distributed fire jetting holes, to constitute flame spouting mechanism 510, fire jetting hole and mixed
Air cavity 300 is closed to be connected to.Fire jetting hole is to be created on after outlet side 500 is integrally formed after forging through interior mouth 200 and outer mouth 100
Between the two wall portion, and interior mouth 200 and outer mouth 100 are combined into the second sealed end in outlet side 500 afterwards through forging.Fire jetting hole is preferred
Ground is set as 6, as shown in Figure 3.
It is illustrated in figure 5 another embodiment of acetylene cutting torch provided by the invention.The embodiment and implementation shown in FIG. 1
Example is the difference lies in that the air inlet 410 in admission gear is oblique through connected unit 220, and connects the mixing of 220 downside of connected unit
Air cavity 330 adds in one end of interior mouth 200 close to outlet side 500 by lathe to increase the mixed headroom of mixed air cavity 330
Work inwardly concaves its outer wall, to increase the gap with the inner wall of outer mouth 100 to mixed gas.Moreover it is preferred that interior mouth
Yang Liu mechanism 210 in 200 is from inlet end to outlet side successively by the first oxygen runner 211, the second oxygen runner 212 and third oxygen stream
Road 213 connects composition, and the internal diameter of the first oxygen runner 211, the second oxygen runner 212 and third oxygen runner 213 is sequentially reduced, to adjust
The flow velocity of the oxygen stream of Jie Qinei, with conical section transition connection between each oxygen runner.
It is illustrated in figure 6 another embodiment of acetylene cutting torch provided by the invention.The embodiment and implementation shown in FIG. 1
Example the difference lies in that interior mouth 200 in the structure of inlet end 400 is a connector platform, and be embedded into company as connected unit 220
In access slot 110.
It is specifically described the production technology of acetylene cutting torch of the invention by the following examples.
Embodiment 1
Present embodiments provide a kind of production technology of acetylene cutting torch, comprising the following steps:
(1) using red copper bar as raw material, according to the outer dimensional shape of setting, raw material are respectively prepared outside with cold headers
Mouth prefabricated component and interior mouth prefabricated component its China and foreign countries' mouth prefabricated component form connected unit after cold-heading, and outer mouth prefabricated component forms tool after cold-heading
There is the cannula structure of link slot；
(2) mouth prefabricated component in being further processed, will obtain Yang Liu mechanism after middle the heart channel of Hang-Shaoyin punching of interior mouth prefabricated component, in Nei Zui
Inlet end equably get air inlet, and inwardly cut outgassing groove along interior mouth outer wall and be connected to air inlet；
(3) it will be packed into outer mouth prefabricated component by the interior mouth prefabricated component of processing, connected unit is embedded in link slot and through overshooting
Pressure processing makes connected unit interference pour link slot and be combined into one, and forms the first sealed end；
(4) steel wire is penetrated according to cutting torch mouth specification between interior mouth prefabricated component and outer mouth prefabricated component in outlet side, in oxygen
The passway for flowing mechanism penetrates steel wire by setting specification, then by forging process, in outlet side that outer mouth prefabricated component and interior mouth is pre-
Product engagement is integral, forms the second sealed end, forms mixed air cavity in two sealed ends, penetrates formation flame at steel wire
Steel wire is then extracted in hole, obtains the first product of cutting torch；
(5) by first product of the product requirement to cutting torch carry out include tack, chamfering, turning, vehicle angle metal working process；
(6) polishing outer surface, cleaning finally obtain cutting torch after air-drying.
Embodiment 2
Present embodiments provide a kind of production technology of acetylene cutting torch, comprising the following steps:
(1) using red copper bar as raw material, according to the outer dimensional shape of setting, raw material are respectively prepared outside with cold headers
Mouth prefabricated component and interior mouth prefabricated component its China and foreign countries' mouth prefabricated component form connected unit after cold-heading, and outer mouth prefabricated component forms tool after cold-heading
There is the cannula structure of link slot；
(2) mouth prefabricated component in being further processed, will obtain Yang Liu mechanism after middle the heart channel of Hang-Shaoyin punching of interior mouth prefabricated component, in Nei Zui
Inlet end equably get 6 air inlets through connected unit, and connected unit lower edge along interior mouth outer wall inwardly cut outgassing groove with into
Stomata connection equably mills out 6 elongated slots by circumferential along outlet side outer wall, and the aperture of elongated slot is greater than the aperture of setting fire jetting hole；
(3) it will be packed into outer mouth prefabricated component by the interior mouth prefabricated component of processing, connected unit is embedded in link slot with interference, so
It is processed afterwards along axial punch and connected unit and link slot is made to be combined into one, form the first sealed end；
(4) steel wire is selected according to cutting torch mouth specification, hole and centre by steel wire from outlet side respectively along elongated slot
The passway of Yang Liu mechanism penetrates, then by forging process, outer mouth prefabricated component and interior mouth prefabricated component are bonded into one in outlet side
It is whole, the second sealed end is formed, forms mixed air cavity in two sealed ends, and deforms the aperture of 6 elongated slots and is contracted to steel wire
Size forms 6 fire jetting holes, then extracts steel wire, obtains the first product of cutting torch；
(5) product requirement is pressed, the further finishings such as tack, chamfering, turning, vehicle angle are carried out to the first product of cutting torch
Work；
(6) polishing outer surface, cleaning finally obtain cutting torch after air-drying.
Embodiment 3
Present embodiments provide a kind of production technology of acetylene cutting torch, comprising the following steps:
(1) using red copper bar as raw material, according to the outer dimensional shape of setting, raw material are respectively prepared outside with cold headers
Mouth prefabricated component and interior mouth prefabricated component its China and foreign countries' mouth prefabricated component form connected unit after cold-heading, and outer mouth prefabricated component forms tool after cold-heading
There is the cannula structure of link slot, circumferentially mills out 6 elongated slots along its inner wall in the outlet side of outer mouth prefabricated component, the aperture of elongated slot is big
In the aperture of setting fire jetting hole；
(2) mouth prefabricated component in being further processed, will obtain Yang Liu mechanism after middle the heart channel of Hang-Shaoyin punching of interior mouth prefabricated component, in Nei Zui
Inlet end equably get air inlet, and inwardly cut outgassing groove along interior mouth outer wall and be connected to air inlet；
(3) it will be packed into outer mouth prefabricated component by the interior mouth prefabricated component of processing, connected unit is embedded in link slot with interference, so
It is processed afterwards along axial punch and connected unit and link slot is made to be combined into one, form the first sealed end；
(4) steel wire is selected according to cutting torch mouth specification, by steel wire from outlet side along the outer ready-made elongated slot of mouth inner wall
Hole and the passway of intermediate Yang Liu mechanism penetrate, then by forging process, outer mouth prefabricated component and interior mouth prefabricated component are existed
Outlet side engagement is integral, forms the second sealed end, forms mixed air cavity in two sealed ends, and deform the aperture of elongated slot
Gage Size is contracted into fire jetting hole, steel wire is then extracted, obtains the first product of cutting torch；
(5) product requirement is pressed, the further finishings such as tack, chamfering, turning, vehicle angle are carried out to the first product of cutting torch
Work；
(6) polishing outer surface, cleaning finally obtain cutting torch after air-drying.
Comparative example
Comparative example is the production technology of common integral type acetylene cutting torch, comprising the following steps:
(1) it using red copper bar as raw material, is mixed according to product materials amount cut blanks, and on an end face of red copper bar
The position mark in gas channel；(2) blank is punched by puncher, obtains circumferentially uniformly distributed mixed gas passage, gaseous mixture
Channel forms air inlet and fire jetting hole through the both ends of blank；
(3) thick upsetting is carried out to blank, preparatory processing goes out the structure of inlet end, such as connector；
(4) to vehicle at the beginning of blank, the outer wall of blank is cut at flat both ends, makes its cylindricality of growing up；
(5) the logical of Yang Liu mechanism successively is formed after the inlet end of blank and outlet side centering, the hole perforation at both ends
Road；
(6) fire jetting hole after just punching is inserted into steel wire, and finish forge processing, which stretch to outlet side, reduces fire jetting hole, pulls out
Steel wire out, then repeating aforesaid operations reduces fire jetting hole gradually, finally steel wire insertion is selected according to cutting torch mouth specification, through adding
Fire jetting hole reaches the aperture of specification requirement after work, extracts steel wire, obtains cutting torch preform；
(7) to the both ends tack of cutting torch preform, smart car reaches the outer diameter of product requirement, and carries out chamfering, outside vehicle
The metal working such as circle, vehicle angle processing；
(8) polishing outer surface, cleaning finally obtain cutting torch after air-drying.
Properties of product test:
1. anti-backfire test
It is executed according to the anti-backfire test regulation of 6.1.4 in JB/T 6970-1993.The end face of cutting torch is parallel to groove
The spacing of copper sheet surface, cutting torch and copper sheet is 1.5mm.Ignite cutting torch, and standard state neutral flame is adjusted to after igniting, will be cut after 30s
Torch is placed on above the copper sheet of rotation, and copper sheet revolving speed is 10r/min, test radius 165mm, does not allow to adjust again during test
Flame, test rotation 5 is enclosed every time.Cutting torch, without tempering phenomenon is continued, is tested after above-mentioned test as qualification.
Anti- backfire test is carried out to the product that the generation technique according to each embodiment obtains and records qualification rate.
2. flame holding is tested
It is executed according to 6.2.6 test determination in JB/T 7950-2014.Cutting torch equipped with cutting torch is ignited and is adjusted to
Property flame, after stablizing 30s, keep flame vertical with wind direction, be placed in wind speed as at 10m/s, according to the testing standard of 10s, cutting torch
Inner cone can normal combustion, no fire extinguishing, tempering phenomenon under the wind speed.
Flame holding test is carried out to the product that the generation technique according to each embodiment obtains and records qualification rate.
3. combustion flame shape is observed
According to the part of test 2, the cutting torch equipped with cutting torch is ignited and is adjusted to neutral flame, after stablizing 30s, observation fire
Whether flame shape is well-balanced, and cutting oxygen stream should be located at flame center, and straight and upright, clear, strong.
Flame holding test is carried out to the product that the generation technique according to each embodiment obtains and records qualification rate.
4. material loss counts
The structure of Fig. 1 manufactures acetylene cutting torch, and it is raw materials used to count the production technology through each embodiment and comparative example
Amount compares, red copper raw material weight needed for calculating single product.
Each embodiment evaluation result:
Above-described embodiment and comparative example are listed in the table below through the evaluation result of performance test:
By above-mentioned test result as it can be seen that the acetylene cutting torch of new process production through the invention, working performance and traditional second
Alkynes cutting torch is suitable；The traditional handicraft of comparative example is compared, and the present invention has the remarkable advantage being greatly decreased that feeds intake, and reduces about 40%
Material cost.Further, since procedure of processing is simple, the process velocity of acetylene cutting torch of the invention is faster than traditional handicraft about 40%,
A large amount of manpower is saved, reduces labour cost about 20%, therefore be with a wide range of applications.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (10)
1. a kind of acetylene cutting torch, cutting torch one end is equipped with inlet end, and the other end is equipped with outlet side, and inlet end is equipped with admission gear, out
Gas end is equipped with flame spouting mechanism, and cutting torch further includes Yang Liu mechanism, oxygen stream mechanism connection inlet end and outlet side；It is characterized in that,
The acetylene cutting torch includes Wai Zui and interior mouth, and interior muzzle is set in outer mouth, and mixed air cavity is equipped between Nei Zui and outer mouth, is mixed
Close air cavity connection admission gear and flame spouting mechanism；
The Yang Liu mechanism is penetratingly set in interior mouth；
The first sealed end and the second sealed end are formd after Wai Zui and the cooperation of interior mouth, flame spouting mechanism is set at the second sealed end.
2. cutting torch as described in claim 1, which is characterized in that Wai Zui and interior mouth are made of red copper.
3. cutting torch as described in claim 1, which is characterized in that the nearly inlet end of interior mouth is recessed air drain, air drain and air inlet machine
Structure is connected, and the downside of air drain is a protruding portion.
4. cutting torch as described in claim 1, which is characterized in that outer mouth is equipped with link slot in inlet end, and interior mouth is set in inlet end
There is connected unit, link slot matches with connected unit, and connected unit is embedded in link slot and compresses the first sealed end of composition.
5. cutting torch as described in claim 1, which is characterized in that Yang Liu mechanism is from inlet end to outlet side successively by several segments oxygen
Runner is constituted, and the interior inlet end without leave of each oxygen runner is sequentially reduced to outlet side.
6. cutting torch as described in claim 1, which is characterized in that flame spouting mechanism includes multiple equally distributed fire jetting holes, flame
Hole is connected to mixed air cavity.
7. a kind of production technology of acetylene cutting torch according to claim 1 to 6, which is characterized in that including following
Step:
(1) using copper rod as raw material, it is processed into outer mouth prefabricated component and interior mouth prefabricated component respectively, the outer mouth prefabricated component is tool
There is the cannula structure of link slot, the interior mouth prefabricated component is the column construction with connected unit, and the outer diameter of interior mouth prefabricated component is less than
The internal diameter of outer mouth prefabricated component；
(2) it will be packed into outer mouth prefabricated component by the interior mouth prefabricated component of processing, in inlet end, connected unit interference fit pours connection
Slot and be combined into one, formed the first sealed end；
(3) make outer mouth prefabricated component and interior mouth prefabricated component be closed to form the second sealed end in outlet side by forging, obtain cutting torch
First product；
(4) first product is finished, its external parameter is made to meet design requirement.
8. the production technology of acetylene cutting torch as claimed in claim 7, which is characterized in that the outer wall along interior mouth prefabricated component is pressed in advance
Mill out elongated slot according to the setting position of fire jetting hole, in step (3), steel wire penetrated in elongated slot, by forge make outer mouth prefabricated component and
Interior mouth prefabricated component reduces the aperture of elongated slot into fire jetting hole.
9. the production technology of acetylene cutting torch as claimed in claim 7, which is characterized in that in interior mouth prefabricated component outlet side according to spray
The setting position of fire hole is punched, and penetrates steel wire in beaten hole, after interior mouth prefabricated component and outer mouth prefabricated component are fitted to each other, is led to
Crossing to forge makes outer mouth prefabricated component and interior mouth prefabricated component reduce punched aperture while being closed to form the second sealed end
Fire jetting hole.
10. the production technology of acetylene cutting torch as claimed in claim 7, which is characterized in that in step (1), in interior mouth prefabricated component
Connected unit under lateral edge outer wall inwardly cut outgassing groove, air drain is connected with admission gear, and a protruding portion is formed on the downside of air drain.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350612.6A CN109967822A (en) | 2019-04-28 | 2019-04-28 | Acetylene cutting torch and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350612.6A CN109967822A (en) | 2019-04-28 | 2019-04-28 | Acetylene cutting torch and its production technology |
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| CN109967822A true CN109967822A (en) | 2019-07-05 |
Family
ID=67086732
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910350612.6A Pending CN109967822A (en) | 2019-04-28 | 2019-04-28 | Acetylene cutting torch and its production technology |
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Citations (7)
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|---|---|---|---|---|
| US3948496A (en) * | 1975-01-16 | 1976-04-06 | Airco, Inc. | Oxygen-fuel cutting torch |
| US5799878A (en) * | 1995-06-28 | 1998-09-01 | Gce-Rhona Autogengerate Gmbh | Gas mixing nozzle for a cutting torch |
| CN2517970Y (en) * | 2001-12-18 | 2002-10-23 | 上海雄成工贸有限公司 | Gas fully mixed cutter head |
| CN101349427A (en) * | 2008-09-12 | 2009-01-21 | 廖怀武 | Energy-saving natural gas cutting nozzle |
| CN102095202A (en) * | 2009-12-14 | 2011-06-15 | 宁波隆兴焊割科技股份有限公司 | Cutting nozzle of cutting torch and processing method thereof |
| CN109237480A (en) * | 2018-09-07 | 2019-01-18 | 东北大学 | A kind of dedicated eddy flow cutting flame cutting torch of high-energy liquefied natural gas and application |
| CN209867629U (en) * | 2019-04-28 | 2019-12-31 | 宁波市奉化一洲焊割工具有限公司 | Acetylene cutting torch |
-
2019
- 2019-04-28 CN CN201910350612.6A patent/CN109967822A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3948496A (en) * | 1975-01-16 | 1976-04-06 | Airco, Inc. | Oxygen-fuel cutting torch |
| US5799878A (en) * | 1995-06-28 | 1998-09-01 | Gce-Rhona Autogengerate Gmbh | Gas mixing nozzle for a cutting torch |
| CN2517970Y (en) * | 2001-12-18 | 2002-10-23 | 上海雄成工贸有限公司 | Gas fully mixed cutter head |
| CN101349427A (en) * | 2008-09-12 | 2009-01-21 | 廖怀武 | Energy-saving natural gas cutting nozzle |
| CN102095202A (en) * | 2009-12-14 | 2011-06-15 | 宁波隆兴焊割科技股份有限公司 | Cutting nozzle of cutting torch and processing method thereof |
| CN109237480A (en) * | 2018-09-07 | 2019-01-18 | 东北大学 | A kind of dedicated eddy flow cutting flame cutting torch of high-energy liquefied natural gas and application |
| CN209867629U (en) * | 2019-04-28 | 2019-12-31 | 宁波市奉化一洲焊割工具有限公司 | Acetylene cutting torch |
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