CN103925053A - Manufacturing method of automotive silencer - Google Patents
Manufacturing method of automotive silencer Download PDFInfo
- Publication number
- CN103925053A CN103925053A CN201310013221.8A CN201310013221A CN103925053A CN 103925053 A CN103925053 A CN 103925053A CN 201310013221 A CN201310013221 A CN 201310013221A CN 103925053 A CN103925053 A CN 103925053A
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- manufacture method
- inner tube
- pipe box
- passage
- holding space
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Abstract
The invention discloses a manufacturing method of an automotive silencer. The manufacturing method of the automotive silencer includes: step 1, providing an inner pipe with a through hole in the pipe wall and a pipe sleeve which can sleeve the outer side of the pipe wall of the inner pipe; step 2, installing the pipe sleeve on the exterior of the through hole of the inner pipe in sleeve mode so as to form a containing space between the pipe sleeve and the inner pipe, and arranging a passageway which communicates the containing space with the external space on the pipe sleeve; step 3, blowing glass continuous filaments used for noise reduction into the containing space through the passageway so as to fill the containing space; step 4, closing the passageway. Accordingly, work of rapidly fixing the glass continuous filaments on the exterior of the through hole of the inner pipe can be completed, and the glass continuous filaments are enabled to have a noise reduction function. Due to the fact that the through hole is formed in the inner pipe, a gas passage can be formed during the process of blowing the glass continuous filaments into the inner pipe, and the glass continuous filaments can be enabled to smoothly enter into the containing space, and furthermore the manufacturing method of the automotive silencer is convenient and efficient.
Description
Technical field
The present invention relates to the manufacture field of sound eliminator for automobile, particularly, relate to a kind of manufacture method of sound eliminator for automobile.
Background technique
Sound eliminator for automobile is one of requisite component in vehicle day-to-day operation, and for example, it can be connected with the outlet pipe of vehicle motor, to play the effect of noise reduction.Existing sound eliminator for automobile adopts complicated silencer conventionally, the multiple acoustical panels that for example arrange with various structural type etc., but it can not effectively abate the noise.Therefore, a kind of sound eliminator for automobile simple in structure and good muffling effect has higher practicability.At present, known there is better erasure effect be adopt glass fibre carry out noise reduction.The utility model patent that is for example CN202544967U at notification number discloses a kind of inner tube assembly of sound eliminator for automobile, wherein, has used the glass wool of process hot pressing as noise reduction medium, can play good erasure effect.In addition also disclose in other embodiments and used the mode of execution of glass continuous fiber as noise reduction medium.
Wherein, be organized under impact and can drop gradually through the glass wool of hot pressing, therefore, along with the tail gas in reality use impacts, glass wool can be blown off gradually from the through hole of inner tube, thereby causes erasure effect worse and worse, and the life-span is not high.Use glass continuous fiber to there will not be this problem.But the current manufacture method that also there is no glass continuous fiber to be fixed to fast the through hole outside of inner tube, because the use amount of sound eliminator for automobile is huge, needs batch production.Therefore cause manufacturing efficiency lower, can not produce larger economic value.Therefore, provide the manufacture method of the sound eliminator for automobile that a kind of manufacturing efficiency is high, there is positive effect for the economic benefit that promotes sound eliminator for automobile.
Summary of the invention
An object of the present invention is to provide a kind of manufacture method of sound eliminator for automobile, this manufacture method can complete the through hole outside that glass continuous fiber is fixed on fast to the inner tube of sound eliminator for automobile fast, make the good muffling effect of sound eliminator for automobile, life-span is high, and can promote the economic benefit of sound eliminator for automobile.
To achieve these goals, according to an aspect of the present invention, provide a kind of manufacture method of sound eliminator for automobile, comprise step 1, the pipe box in the tube wall outside that is provided with the inner tube of through hole on tube wall and can be set in this inner tube is provided; Step 2 at the outside sheathed described pipe box of described through hole of described inner tube, to make forming holding space between described pipe box and described inner tube, and in described step 1, arranges the passage that is communicated with this holding space and extraneous space on described pipe box; Step 3, blows into the glass continuous fiber for noise reduction in described holding space by described passage, to fill this holding space; And step 4, seal described passage.
Preferably, in described step 1, the two ends of described pipe box are processed as to throat structure.
Preferably, described manufacture method also comprises step 5, in described step 5, the end of described throat structure is welded in described inner tube.
Preferably, in described step 1, on described pipe box, punching is to form described passage.
Preferably, in described step 3, first glass continuous fiber described in one is penetrated in the spray gun with gas ejection function, this spray gun port is stretched in described passage, then by pressurized air, this strand of glass continuous fiber is blown in described holding space continuously.
Preferably, in described step 4, after described holding space is filled, by passage described in shutoff welded closure.
Preferably, in sealing when described passage, adopt passage described in the tinsel shutoff matching with the radian of described pipe box, then by this tinsel boxing on described pipe box.
Preferably, in described step 1, the end of described inner tube is obtained to flaring structure by spinning.
Pass through technique scheme, owing to being provided with the passage that is communicated with holding space and space outerpace on pipe box, therefore first pipe box is fixed on inner pipe, then by this passage, glass continuous fiber is blown in holding space, last closed channel can complete the work that fast glass continuous fiber is fixed on to the through hole outside of inner tube, makes it have sound deadening.Wherein, owing to being provided with through hole in inner tube, therefore, carrying out being blown in process of glass continuous fiber, can form gas passageway, glass continuous fiber can be entered in holding space smoothly, convenient and swift.
Other features and advantages of the present invention are described in detail the embodiment part subsequently.
Brief description of the drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is in the step 1 of the manufacture method that provides in the preferred embodiment for the present invention, the structural representation of the inner tube of sound eliminator for automobile
Fig. 2 is in the step 2 of the manufacture method that provides in the preferred embodiment for the present invention, the external structure schematic diagram of sound eliminator for automobile;
After Fig. 3 is the step 3 and step 4 of the manufacture method that provides through the preferred embodiment for the present invention, the sectional structure schematic diagram of sound eliminator for automobile.
Description of reference numerals
1 inner tube 2 pipe boxes
3 holding space 4 glass continuous fibers
5 passages
11 through hole 12 flaring structures
21 throat structures
Embodiment
The present invention for convenience of description, below only in conjunction with Fig. 1 to Fig. 3, the mode of execution of the manufacture method to sound eliminator for automobile provided by the invention is described, should be understood that, mode of execution described herein only, for description and interpretation the present invention, is not limited to the present invention.
In the present invention, in the situation that not doing contrary explanation, the noun of locality of use is as conventionally defined as benchmark taking page shown in the drawings in " upper and lower, left and right, inside and outside ", and these nouns of locality, only for the present invention is described, are not limited to the present invention.
As shown in Figure 1 to Figure 3, the invention provides a kind of manufacture method of sound eliminator for automobile, wherein, the main following five steps of this manufacture method, by following five steps, can complete fast through hole 11 outsides that the glass continuous fiber 4 for noise reduction are fixed on to inner tube 1, thereby complete the noise reduction work in real work.
As shown in Figure 1, in the step 1 of manufacture method provided by the invention, provide the pipe box 2 in the tube wall outside that is provided with the inner tube 1 of through hole 11 on tube wall and can be set in this inner tube 1.Wherein, as shown in Figure 1, the through hole 11 on this inner tube 1 tube wall can process in the time of inner tube moulding.This inner tube 1 needs the tracheae that runs in real work, therefore makes noise that the tail gas of motor is mingled with can be fixed on glass continuous fiber 4 noise reductions of through hole 11 outsides.In addition, providing the pipe box 2 in the tube wall outside that can be set in inner tube 1 is to provide holding space for the glass continuous fiber 4 for follow-up.
For the convenient outlet pipe that connects, can process flaring structure 12 in the end of inner tube, between this flaring structure 12, be greater than the diameter of main body and the outlet pipe (not shown) of inner tube 1, to for example Stainless Steel Wire packing ring of transition piece 4(is set between 12 outlet pipes of flaring structure), the material of this transition piece 4 is different from the material of inner tube 1, therefore in the process of temperature variation, the difference having by the different materials deformation rate of expanding with heat and contract with cold, can bring the transition effect of distortion for inner tube 1 and outlet pipe, thereby effectively solve under worst hot case, the mutual extruding bringing due to distortion between inner tube 1 and outlet pipe or the problem of damage.Wherein, only shown in one end of inner tube 1 and form flaring structure in Fig. 1, in other NM mode of executions, can also process equally flaring structure at the other end according to actual conditions, the present invention does not limit this.Wherein, this flaring structure 12 can be realized by flaring machine well known in the art.
Carry out, after step 1, carrying out step 2.Wherein, as shown in Figures 2 and 3, at the outside sheathed pipe box 2 of through hole 11 of inner tube 1, to make forming holding space 3 between pipe box 2 and inner tube 1, wherein, this holding space 3 is the fixed space that holds noise reduction glass continuous fiber 4.In order to facilitate follow-up glass continuous fiber 4 to enter in holding space 3, need emphasis to describe, the passage 5 that is communicated with this holding space 3 and extraneous space need to be set on pipe box 2.Wherein, for easy to process, preferably, in the step 1 before carrying out step 2, by sheathed pipe box 2 on inner pipe before, form passage 5.Therefore, follow-up in step 3, can the glass continuous fiber 4 for noise reduction be blown in holding space 3 by this passage 5, to fill this holding space 3; After the glass continuous fiber amount in holding space 3 meets noise reduction and requires, carry out step 4, i.e. closed channel 5.Thereby complete fast glass continuous fiber and be fixed to the outside manufacturing process of the through hole 11 of inner tube 1 by above-mentioned steps one to four.The sound eliminator for automobile now obtaining can be called the inner tube assembly of this sound eliminator for automobile, and this inner tube assembly is the core component that sound eliminator for automobile plays sound deadening, can sell separately.And place an order and be solely used in noise reduction in some operating mode.But usually, in the time that being used, reality also need install housing additional in its outside, to promote its practicability and life-span.This step that installs housing additional does not relate to the present invention, does not do too much and repeats at this.
Particularly, in the preferred embodiment of the present invention, form holding space 3 for convenient between inner tube 1 and pipe box 2, preferably, the two ends of pipe box 2 form throat structure 21, particularly, in step one, form this throat structure 21.And in subsequent step, the end of throat structure 21 is welded in inner tube 1, so that pipe box 2 is fixed in inner tube 1.Wherein preferably, complete after sealing through hole 5, manufacture method provided by the invention also comprises step 5, in this step 5, completes the end of throat structure 21 is welded in inner tube 1, to complete the overall manufacture process of sound eliminator for automobile.Wherein, preferably the one-tenth taper of throat structure 21 diminishes gradually.During fabrication, when the diameter of pipe box 2 hour, can complete by the end of the machine for shrinking extruding pipe box 2 in related domain.And in the time of the enlarged diameter of pipe box 2; the fold forming for fear of extruding, can form by spinning machine spinning well known in the art the utility model patent that can be CN202544967U with reference to notification number particularly; for the change of this mode, all should drop in protection scope of the present invention.
In addition, in step 1, the mode that passage 5 is set on pipe box 2 has multiple, in optimal way of the present invention, by punching on pipe box 2, to form passage 5.Particularly, can use steel plate punch to carry out spinning punching, to form passage 5.The hole of wherein being beaten be formed on the tube wall of pipe box 2, easily carry out glass continuous fiber 4 be blown into step 4 in channel enclosed operation.In addition, in other NM mode of executions, can also be in the time of pipe box 2 moulding; form recessed breach in its end; therefore after pipe box 2 is fixed in inner tube 1, its end can form passage 5 together with inner tube 1, should drop on equally in protection scope of the present invention for this mode of texturing.
Comparatively crucial step is step 3 in the present invention, wherein in order smoothly glass continuous fiber 4 to be blown in holding space 3, wherein, what the equipment that spray gun that can adopt sandblasting machine well known in the art etc. has a gas ejection function carried out glass continuous fiber is blown into operation automatically, wherein according to the characteristic of 4 one-tenth strands of shapes of glass continuous fiber, can first one glass continuous fiber 4 be penetrated in the spray gun of sandblasting machine, and spray gun port is stretched in passage 5, then by the pressurized air of sandblasting machine, this strand of glass continuous fiber is blown in holding space 3 continuously.This technique can be called " directly blowing " technique.Except using the automatic equipments such as sandblasting machine, can also manually be completed by the hand-held hand-held spray guns of workman, to grasp in time the amount of the interior glass continuous fiber 4 of holding space 3.In addition,, under design of the present invention, other modes that glass continuous fiber 4 is blown into holding space 3 by passage 5 that those skilled in the art can expect all should drop in protection scope of the present invention.
What wherein need that emphasis mentions is, ingenious part of the present invention is: owing to being provided with through hole 11 in inner tube 1, therefore can provide air current flow path for holding space 3, in the time that other are blown into holding space 3 from passage 5 by glass continuous fiber, the glass continuous fiber 4 that enters holding space 3 with air can be stayed the interior use as noise reduction of holding space 3, air enters inner tube 1 by through hole 11, and discharge from the two ends of inner tube 1, this has ensured flowing smoothly of air-flow effectively, for realization of the present invention provides precondition.
In step 4, having of closed channel 5 is multiple, for example, in the preferred embodiment of the present invention, and can be by shutoff welded closure passage 5.Particularly, adopt the tinsel that matches with the radian of pipe box 2, preferably the material identical with pipe box 2 carrys out shutoff passage 5, then by this tinsel boxing on pipe box 2, to complete the shutoff to passage 5.
To sum up, the sound eliminator for automobile of the manufacture method manufacturing by the above-mentioned five steps of the present invention can carry out noise reduction by glass continuous fiber 4, has ensured the erasure effect of sound eliminator for automobile in the situation that the upper time is used.And manufacture method provided by the invention can complete the outside that glass continuous fiber is fixed to the through hole 11 of inner tube 1 fast, convenient and swift, for batch production sound eliminator for automobile has brought positive effect, there is higher practicability and promotional value.
Below describe in detail by reference to the accompanying drawings preferred embodiment of the present invention; but; the present invention is not limited to the detail in the respective embodiments described above; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technological scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between various mode of execution of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (8)
1. a manufacture method for sound eliminator for automobile, is characterized in that, described manufacture method comprises:
Step 1, provides the pipe box (2) in the inner tube (1) that is provided with through hole (11) on tube wall and the tube wall that can be set in this inner tube (1) outside;
Step 2, at the outside sheathed described pipe box of described through hole (11) (2) of described inner tube (1), to make forming holding space (3) between described pipe box (2) and described inner tube (1), and on described pipe box (2), be provided with the passage (5) that is communicated with this holding space (3) and extraneous space;
Step 3, is blown into the glass continuous fiber (4) for noise reduction in described holding space (3) by described passage (5), to fill this holding space (3);
And step 4, seal described passage (5).
2. manufacture method according to claim 1, is characterized in that, in described step 1, the two ends of described pipe box (2) is processed as to throat structure (21).
3. manufacture method according to claim 2, is characterized in that, described manufacture method also comprises step 5, in described step 5, the end of described throat structure (21) is welded in described inner tube (1).
4. manufacture method according to claim 1, is characterized in that, in described step 1, in the upper punching of described pipe box (2), to form described passage (5).
5. manufacture method according to claim 1, it is characterized in that, in described step 3, first glass continuous fiber (4) described in one is penetrated in the spray gun with gas ejection function, this spray gun port is stretched in described passage (5), then by pressurized air, this strand of glass continuous fiber (4) is blown in described holding space (3) continuously.
6. manufacture method according to claim 1, is characterized in that, in described step 4, after described holding space (3) is filled, by passage (5) described in shutoff welded closure.
7. manufacture method according to claim 6, is characterized in that, at the described passage of sealing when (5), adopts passage (5) described in the tinsel shutoff matching with the radian of described pipe box (2), then by this tinsel boxing on described pipe box (2).
8. manufacture method according to claim 1, is characterized in that, in described step 1, the end of described inner tube is obtained to flaring structure (12) by spinning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310013221.8A CN103925053A (en) | 2013-01-14 | 2013-01-14 | Manufacturing method of automotive silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310013221.8A CN103925053A (en) | 2013-01-14 | 2013-01-14 | Manufacturing method of automotive silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103925053A true CN103925053A (en) | 2014-07-16 |
Family
ID=51143412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310013221.8A Pending CN103925053A (en) | 2013-01-14 | 2013-01-14 | Manufacturing method of automotive silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103925053A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963745A (en) * | 2015-06-01 | 2015-10-07 | 上海佛吉亚红湖排气系统有限公司 | Automobile silencer damping cotton opening filling technology |
| CN106514144A (en) * | 2016-11-11 | 2017-03-22 | 成都陵川特种工业有限责任公司 | Production method for device capable of lowering sound |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6158547A (en) * | 1997-12-24 | 2000-12-12 | J. Eberspacher Gmbh & Co. | Process for manufacturing an absorption muffler |
| EP1111207A2 (en) * | 1999-12-23 | 2001-06-27 | J. Eberspächer GmbH Co. KG | Method for manufacturing an absorption silencer |
| WO2002027159A2 (en) * | 2000-09-28 | 2002-04-04 | J. Eberspächer Gmbh & Co. | Muffler assembly of a motor vehicle having a variable damping characteristic |
| CN101687344A (en) * | 2007-05-25 | 2010-03-31 | Ocv智识资本有限责任公司 | The formation method of muffler preforms |
| CN202544967U (en) * | 2012-03-31 | 2012-11-21 | 三河三友汽车部件有限公司 | Inner pipe component of vehicle silencer and vehicle silencer |
-
2013
- 2013-01-14 CN CN201310013221.8A patent/CN103925053A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6158547A (en) * | 1997-12-24 | 2000-12-12 | J. Eberspacher Gmbh & Co. | Process for manufacturing an absorption muffler |
| EP1111207A2 (en) * | 1999-12-23 | 2001-06-27 | J. Eberspächer GmbH Co. KG | Method for manufacturing an absorption silencer |
| WO2002027159A2 (en) * | 2000-09-28 | 2002-04-04 | J. Eberspächer Gmbh & Co. | Muffler assembly of a motor vehicle having a variable damping characteristic |
| CN101687344A (en) * | 2007-05-25 | 2010-03-31 | Ocv智识资本有限责任公司 | The formation method of muffler preforms |
| CN202544967U (en) * | 2012-03-31 | 2012-11-21 | 三河三友汽车部件有限公司 | Inner pipe component of vehicle silencer and vehicle silencer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963745A (en) * | 2015-06-01 | 2015-10-07 | 上海佛吉亚红湖排气系统有限公司 | Automobile silencer damping cotton opening filling technology |
| CN104963745B (en) * | 2015-06-01 | 2018-02-06 | 上海佛吉亚红湖排气系统有限公司 | A kind of automotive muffler noise elimination cotton fills opening process |
| CN106514144A (en) * | 2016-11-11 | 2017-03-22 | 成都陵川特种工业有限责任公司 | Production method for device capable of lowering sound |
| CN106514144B (en) * | 2016-11-11 | 2018-11-23 | 成都陵川特种工业有限责任公司 | A kind of production method reducing audio unit |
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Application publication date: 20140716 |
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