CN104149334A - Ultrasonic welding process for sound absorption sponge of automotive interior ceiling - Google Patents
Ultrasonic welding process for sound absorption sponge of automotive interior ceiling Download PDFInfo
- Publication number
- CN104149334A CN104149334A CN201410316312.3A CN201410316312A CN104149334A CN 104149334 A CN104149334 A CN 104149334A CN 201410316312 A CN201410316312 A CN 201410316312A CN 104149334 A CN104149334 A CN 104149334A
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- China
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- acoustical cotton
- sound absorption
- absorption sponge
- ultrasonic welding
- ceiling
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Abstract
The invention relates to a novel ultrasonic welding process for sound absorption sponge of an automotive interior ceiling. The process comprises the following steps: (1) positioning the ceiling, namely putting a semi-finished ceiling product on a tool mold, and positioning and fixing the front and rear parts of the tool mold respectively; (2) laying the sound absorption sponge, namely horizontally laying the sound absorption sponge at the adhesion position of the semi-finished ceiling product; (3) performing ultrasonic welding, namely tightly pressing the surface of the sound absorption sponge by using a welding head of a manual ultrasonic welding machine, so that the surface of the sound absorption sponge vibrates by virtue of an ultrasonic wave, generates heat by friction to achieve the melting effect, and adheres to the surface of the ceiling in a direct contact manner; and (4) inspecting a finished product. The steps of the process are simple, the production cost is low, the heat transfer effect is good, the sound absorption sponge firmly adheres to the interior ceiling, and the process has the advantages of quickness, convenience, non-toxicity, odorlessness, environment friendliness and energy conservation.
Description
Technical field
The present invention relates to a kind of automotive trim top acoustical cotton ultrasonic welding process, belong to automotive upholstery processing and manufacturing technical field.
Background technology
Automotive trim ceiling is mounted in the decoration on top in car, is the important component part of vehicle complete vehicle interior trim, plays effect heat insulation, that absorb the middle part noise that travels, beautify driving cabin and improve car comfort inside and security.Along with growth in the living standard, people are also more and more higher to the requirement of automotive upholstery.In existing automobile ceiling production technology, the technique that great majority adopt is hot melt glue gluing formula and inserted two kinds, wherein, adopt hot melt glue gluing formula to have the bad control of glue amount, glue smell weight, the shortcoming such as cannot thoroughly eliminate, inserted installation steps are loaded down with trivial details, expend time in.
Summary of the invention
The object of the invention is in installing, to adopt the glue amount of glue gluing formula wayward in order to overcome automotive trim ceiling in prior art, taste is larger, the shortcoming of inserted installation steps complexity, provide a kind of processing step simple, the technique of ultrasonic bonding automotive trim top acoustical cotton quick for installation.
According to technical scheme provided by the invention: a kind of technique of ultrasonic bonding automotive trim top acoustical cotton, is characterized in that: adopt following steps:
(1) top location: top semi-finished product are put on moulds of industrial equipment, location before and after moulds of industrial equipment is fixing respectively;
(2) acoustical cotton lay: acoustical cotton is tiled to the top semi-finished product back side, and described acoustical cotton grammes per square metre is 230 ~ 350g/m
2;
(3) ultrasonic bonding: use the soldering tip of manual ultrasonic welding machine to compress acoustical cotton surface, ultrasonic wave makes acoustical cotton surface vibration frictional heat produce melting effect, directly contact and paste with top surface, the operating air pressure of described manual ultrasonic welding machine is 4-6kg/cm
3, supersonic frequency is 26 ~ 30 KHZ, and weld time is 0.25 ~ 0.5 second, and the depth of weld is 1 ~ 2mm;
(4) product inspection: get after the product inspection that step (3) obtains, vanning, puts in storage by 12pcs/ case on request.
Further, the manual ultrasonic welding machine soldering tip that in described step (3), welding is used is titanium alloy material, and soldering tip diameter is 10 ~ 15mm.
Further, described acoustical cotton is made by PET and felt materials.
Beneficial effect of the present invention: the present invention has simplified production technology, provide a kind of and passed to vibration with ultrasonic wave, the method welding of automotive interior trim top of frictional heat welding acoustical cotton, improved production efficiency, reduced production cost, heat-transfer effect is good, paste firmly, efficient and convenient, nontoxic odorlessness, environmental protection and energy saving.
The specific embodiment
Below in conjunction with instantiation, the invention will be further described.
In the present invention, adopt the technique of ultrasonic bonding automotive trim top acoustical cotton, ultrasonic wave utilizes ticker to convert mechanical energy to, via transmission, plumb joint reaches the friction of acoustical cotton contact-making surface and makes the intermolecular effect that produces rapidly heat melts, under certain pressure condition, make acoustical cotton material PET and felt heat fusing, rely on artificial hand-held power and top surface moment generation adhering effect, without any need for medium, when reaching the setting depth of weld, relative motion stops, enter that packing stage weld seam is cooling and curing completes welding, acoustical cotton is laid in after skylight, the automotive trim top back side or top back side right lower quadrant or top back side lower left quarter, so size of acoustical cotton amount lay amount, lay position and adopt the selection of manual ultrasonic welding machine welding parameter to have vital effect to the welding quality of automobile calash.
embodiment 1
The technique of ultrasonic bonding automotive trim top acoustical cotton, is characterized in that step is as follows:
(1) top location: top semi-finished product are put on moulds of industrial equipment, and by positioning datum A before and after moulds of industrial equipment, B point is fixing respectively;
(2) acoustical cotton lay: acoustical cotton is tiled to after the skylight at the top semi-finished product back side and the right lower quadrant of the top back side, and described acoustical cotton is made by PET and felt materials, and described acoustical cotton grammes per square metre is 230g/m
2;
(3) ultrasonic bonding: use the soldering tip of manual ultrasonic welding machine to compress acoustical cotton surface, ultrasonic wave makes acoustical cotton surface vibration frictional heat produce melting effect, directly contact and paste with top surface, the operating air pressure of described manual ultrasonic welding machine is 4kg/cm
3, weld time is 0.25 second, the depth of weld is 1mm;
(4) product inspection: get after the product inspection that step (3) obtains, vanning, puts in storage by 12pcs/ case on request.
Selected manual ultrasonic welding machine working power is 220V, 20A, and supersonic frequency is 26KHZ, mechanical impedance: < 20 Ω, resonant frequency: 28KHZ, soldering tip adopts titanium alloy material, connecting screw: 8 * 1, soldering tip diameter is 10mm.
Finished product is after testing: 1. outward appearance: smooth, and without fault, without 2. cold-resistant damp and hot cyclicity (H2) of the bad phenomenon such as dirty, empty subsides: 3. fire-retardant without disengagement :≤100mm/min.
embodiment 2
The technique of ultrasonic bonding automotive trim top acoustical cotton, is characterized in that step is as follows:
(1) top location: top semi-finished product are put on moulds of industrial equipment, and by positioning datum A before and after moulds of industrial equipment, B point is fixing respectively;
(2) acoustical cotton lay: acoustical cotton is tiled to after the skylight at the top semi-finished product back side and the lower left quarter of the top back side, and described acoustical cotton is made by PET and felt materials, and described acoustical cotton grammes per square metre is 300g/m
2;
(3) ultrasonic bonding: use the soldering tip of manual ultrasonic welding machine to compress acoustical cotton surface, ultrasonic wave makes acoustical cotton surface vibration frictional heat produce melting effect, directly contact and paste with the top semi-finished product back side, the operating air pressure of described manual ultrasonic welding machine is 5kg/cm
3, weld time is 0.4 second, the depth of weld is 1.5mm;
(4) product inspection: get after the product inspection that step (3) obtains, vanning, puts in storage by 12pcs/ case on request.
Selected manual ultrasonic welding machine working power is 220V, 20A, and supersonic frequency is 28KHZ, mechanical impedance: < 20 Ω, resonant frequency is 28KHZ, soldering tip adopts titanium alloy material, connecting screw: 8 * 1, soldering tip diameter is 15mm.
Finished product is after testing: 1. outward appearance: smooth, and without fault, without 2. cold-resistant damp and hot cyclicity (H2) of the bad phenomenon such as dirty, empty subsides: 3. fire-retardant without disengagement :≤100mm/min.
embodiment 3
The technique of ultrasonic bonding automotive trim top acoustical cotton, is characterized in that step is as follows:
(1) top location: top semi-finished product are put on moulds of industrial equipment, and by positioning datum A before and after moulds of industrial equipment, B point is fixing respectively;
(2) acoustical cotton lay: acoustical cotton is tiled to after the skylight at the top semi-finished product back side and the right lower quadrant of the top back side, and described acoustical cotton is made by PET and felt materials, and described acoustical cotton grammes per square metre is 350g/m
2;
(3) ultrasonic bonding: use the soldering tip of manual ultrasonic welding machine to compress acoustical cotton surface, ultrasonic wave makes acoustical cotton surface vibration frictional heat produce melting effect, directly contact and paste with the top semi-finished product back side, the operating air pressure of described manual ultrasonic welding machine is 6kg/cm
3, weld time is 0.5 second, the depth of weld is 2mm;
(4) product inspection: get after the product inspection that step (3) obtains, vanning, puts in storage by 12pcs/ case on request.
Selected manual ultrasonic welding machine working power is 220V, 20A, and supersonic frequency is 30KHZ, mechanical impedance: < 20 Ω, resonant frequency: 28KHZ, soldering tip adopts titanium alloy material, connecting screw: 8 * 1, soldering tip diameter is 15mm.
Finished product is after testing: 1. outward appearance: smooth, and without fault, without 2. cold-resistant damp and hot cyclicity (H2) of the bad phenomenon such as dirty, empty subsides: 3. fire-retardant without disengagement :≤100mm/min.
Claims (3)
1. a technique for ultrasonic bonding automotive trim top acoustical cotton, is characterized in that: adopt following steps:
(1) top location: top semi-finished product are put on moulds of industrial equipment, location before and after moulds of industrial equipment is fixing respectively;
(2) acoustical cotton lay: acoustical cotton is tiled to the half-finished back side of top, and described acoustical cotton grammes per square metre is 230 ~ 350g/m
2;
(3) ultrasonic bonding: use the soldering tip of manual ultrasonic welding machine to compress acoustical cotton surface, ultrasonic wave makes acoustical cotton surface vibration frictional heat produce melting effect, directly contact and paste with top semi-finished product, the operating air pressure of described manual ultrasonic welding machine is 4-6kg/cm
3, supersonic frequency is 26 ~ 30 KHZ, and weld time is 0.25 ~ 0.5 second, and the depth of weld is 1 ~ 2mm;
(4) product inspection: get after the product inspection that step (3) obtains, vanning, puts in storage by 12pcs/ case on request.
2. the technique of ultrasonic bonding automotive trim top acoustical cotton as claimed in claim 1, is characterized in that: the manual ultrasonic welding machine soldering tip that in described step (3), welding is used is titanium alloy material, and soldering tip diameter is 10 ~ 15mm.
3. the technique of ultrasonic bonding automotive trim top acoustical cotton as claimed in claim 1, is characterized in that: described acoustical cotton is mixed by PET and felt materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410316312.3A CN104149334A (en) | 2014-07-04 | 2014-07-04 | Ultrasonic welding process for sound absorption sponge of automotive interior ceiling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410316312.3A CN104149334A (en) | 2014-07-04 | 2014-07-04 | Ultrasonic welding process for sound absorption sponge of automotive interior ceiling |
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| Publication Number | Publication Date |
|---|---|
| CN104149334A true CN104149334A (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410316312.3A Pending CN104149334A (en) | 2014-07-04 | 2014-07-04 | Ultrasonic welding process for sound absorption sponge of automotive interior ceiling |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080433A (en) * | 2016-08-23 | 2016-11-09 | 无锡吉兴汽车声学部件科技有限公司 | The technique that acoustical cotton is installed at the roof by wet back side |
| CN108556368A (en) * | 2018-05-04 | 2018-09-21 | 无锡尼可超声波设备有限公司 | A kind of hat rack fixing buckle Joining Technology |
| CN111923415A (en) * | 2020-07-21 | 2020-11-13 | 东风(十堰)林泓汽车配套件有限公司 | Fixing process for automobile super-thick soundproof cotton |
| CN113602363A (en) * | 2021-08-27 | 2021-11-05 | 长安马自达汽车有限公司 | Automobile noise reduction system and manufacturing method thereof |
| CN114905751A (en) * | 2022-06-04 | 2022-08-16 | 武汉叁木汽车部件有限公司 | Ultrasonic welding process for sound absorption cotton of automotive interior ceiling |
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| US20070215264A1 (en) * | 2006-03-20 | 2007-09-20 | Pacific Industrial Co., Ltd. | Structure for and method of fixing elastic resin sheet |
| JP2013099877A (en) * | 2011-11-08 | 2013-05-23 | Kojima Press Industry Co Ltd | Ultrasonic fusion bonding method |
| CN203005306U (en) * | 2013-01-06 | 2013-06-19 | 美嘉帕拉斯特汽车零部件（上海）有限公司 | Inner plate of automobile pillar A |
| JP2013199877A (en) * | 2012-03-26 | 2013-10-03 | Denso Corp | Intake and exhaust device of internal combustion engine |
| CN103341970A (en) * | 2013-07-02 | 2013-10-09 | 无锡吉兴汽车部件有限公司 | Ultrasonic welding process for acoustic wool of acoustic part on automobile |
| CN203267944U (en) * | 2013-05-26 | 2013-11-06 | 温州市环球汽车衬垫有限公司 | Sound insulation piece used for automotive trim |
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2014
- 2014-07-04 CN CN201410316312.3A patent/CN104149334A/en active Pending
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| US20070215264A1 (en) * | 2006-03-20 | 2007-09-20 | Pacific Industrial Co., Ltd. | Structure for and method of fixing elastic resin sheet |
| JP2013099877A (en) * | 2011-11-08 | 2013-05-23 | Kojima Press Industry Co Ltd | Ultrasonic fusion bonding method |
| JP2013199877A (en) * | 2012-03-26 | 2013-10-03 | Denso Corp | Intake and exhaust device of internal combustion engine |
| CN203005306U (en) * | 2013-01-06 | 2013-06-19 | 美嘉帕拉斯特汽车零部件（上海）有限公司 | Inner plate of automobile pillar A |
| CN203267944U (en) * | 2013-05-26 | 2013-11-06 | 温州市环球汽车衬垫有限公司 | Sound insulation piece used for automotive trim |
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| 徐佩弦: "《塑料件的设计》", 30 June 2001, article "焊接和粘结", pages: 168-175 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080433A (en) * | 2016-08-23 | 2016-11-09 | 无锡吉兴汽车声学部件科技有限公司 | The technique that acoustical cotton is installed at the roof by wet back side |
| CN108556368A (en) * | 2018-05-04 | 2018-09-21 | 无锡尼可超声波设备有限公司 | A kind of hat rack fixing buckle Joining Technology |
| CN111923415A (en) * | 2020-07-21 | 2020-11-13 | 东风(十堰)林泓汽车配套件有限公司 | Fixing process for automobile super-thick soundproof cotton |
| CN113602363A (en) * | 2021-08-27 | 2021-11-05 | 长安马自达汽车有限公司 | Automobile noise reduction system and manufacturing method thereof |
| CN114905751A (en) * | 2022-06-04 | 2022-08-16 | 武汉叁木汽车部件有限公司 | Ultrasonic welding process for sound absorption cotton of automotive interior ceiling |
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Application publication date: 20141119 |
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| RJ01 | Rejection of invention patent application after publication |