CN103341970B - The ultrasonic welding process of acoustic part of automobile acoustical cotton - Google Patents
The ultrasonic welding process of acoustic part of automobile acoustical cotton Download PDFInfo
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- CN103341970B CN103341970B CN201310273552.5A CN201310273552A CN103341970B CN 103341970 B CN103341970 B CN 103341970B CN 201310273552 A CN201310273552 A CN 201310273552A CN 103341970 B CN103341970 B CN 103341970B
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Abstract
The present invention relates to a kind of ultrasonic welding process of acoustic part of automobile acoustical cotton, be specifically related to the breakthrough of a kind of automotive interior part and manufacturing process, belong to technical field of automotive upholstery.It utilizes ticker to convert mechanical energy to, via transmission, plumb joint reaches the friction of acoustical cotton contact surface and makes the intermolecular effect producing heat melts rapidly, do you make acoustical cotton material PET? FELT heat fusing, and utilize the falling pressure of cylinder and hat rack surface to produce the moment of adhering effect, without any need for the technique that medium just can weld; PLC human-computer interface control, accuracy is high, stable performance, and the action of cylinder links up, easy and simple to handle, can adjust speed change arbitrarily, compact dimensions, improve productivity and quality.Namely meet the VOC standard of automotive trim product main engine plants, again reduce material cost, be low cost, the high efficiency of automobile, more significant contribution has been made in environmental protection.
Description
Technical field
The present invention relates to a kind of ultrasonic welding process of acoustic part of automobile acoustical cotton, be specifically related to the breakthrough of a kind of automotive interior part and manufacturing process, belong to technical field of automotive upholstery.
Background technology
Automotive trim hat rack is mounted in car and arrange the decoration driven on the panel beating of backrest rear end, cabin afterwards, play heat insulation, absorb partial noise in traveling, beautify driving cabin and some other acts on.More and more pursuing high-performance, environment-friendly type, energy-saving, lightweight, personalized epoch, the interior trim of automobile is the same with the profile of automobile, becomes the key factor that people choose automobile.Therefore also more and more higher to the requirement of automotive upholstery.In existing vehicular coat and hat rack production technology, the technique that great majority adopt is all that hot melt glue pastes the vertical annex of group, the shortcoming of existence: 1, glue cost is high, the bad control of glue amount; 2, glue smell weight, cannot thoroughly eliminate, very harmful; 3, to heat glue, time consumption and energy consumption.Thus, research invention a kind of efficient quick, low cost, high-quality production technology, have extremely important meaning.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of technique of ultrasonic wave acoustical cotton welding of automotive interior trim hat rack is provided.
According to technical scheme provided by the invention, the ultrasonic welding process of acoustic part of automobile acoustical cotton, step is as follows:
(1) heat: get polypropylene and the heating of glass composite base material feeding baking oven; During heating, upper baking oven temperature of heating plate is 260 ~ 330 DEG C, and lower baking oven temperature of heating plate is 280 ~ 350 DEG C, dries temperature time: 75-85s;
(2) molding press cutting: get the substrate surface compound layer of non-woven fabric fabric after step (1) heating, adopt 1500 tons of hydraulic forming machines shaping, at the briquetting pressure compacted under 45-55s of 4-6MPa; Shaping rear material carries out die-cut under 40 ~ 60psi pressure, obtains shaping hat rack semi-finished product;
(3) weld: adopt ultrasonic welding machine welding stand;
A, first press computer contact screen select automatic welding, step (2) gained hat rack semi-finished product are put into moulds of industrial equipment, by front and back positioning datum A, B point is fixed, and then acoustical cotton is put into hat rack and specifies and paste position, and then simultaneously two hands press two buttons about starting switch, multiple operator mechanism is adjacent to acoustical cotton surface along with cylinder at the uniform velocity presses down, produce functional contact face and send out ripple vibration, frictional heat melting effect, directly contact with rear bulkhead surface and paste;
Described ultrasonic welding machine working power is 220V, 20A; Operating air pressure is 0-6kg/cm; Upper and lower stroke is 75mm; Operating temperature is-5-45 DEG C; Weld time is 0-9 second; The depth of weld is 0 ~ 20mm;
B, cylinder rise automatically, and acoustical cotton welding terminates, and obtains finished product hat rack.
(4) check: after getting the product inspection that step (3) obtains, case by general GP12 requirements, put in storage by 30pcs/ case.
Step (1) described base material is polypropylene PP and glass GF compound, and density is 1350-1450g/cm
2.The described non-woven fabrics density of step (1) is 300-340g/cm
2.The described acoustical cotton acoustical cotton of step (3) is PET and FELT compound, and density is 340-360g/cm
2.
Described ultrasonic wave passes to vibration, and frictional heat is welded, without any need for medium.
Beneficial effect of the present invention: this invention simplifies production technology, provides one and passes to vibration with ultrasonic wave, and the method for frictional heat welding acoustical cotton, improves production efficiency, reduce production cost, heat-transfer effect is good, pastes firmly, efficient and convenient, nontoxic odorlessness, environmental protection is energy-conservation again.
Detailed description of the invention
Below in conjunction with instantiation, the invention will be further described.Base material is purchased from Zhejiang Hua Jiang, and acoustical cotton is triumphant purchased from Kunshan Photar, and fabric is purchased from Wal, Jinhua.
Embodiment 1SGMD2SC hat rack
The ultrasonic welding process of acoustic part of automobile acoustical cotton, step is as follows:
(1) heat: get polypropylene and the heating of glass composite base material feeding baking oven; During heating, upper baking oven temperature of heating plate is 260 DEG C, and lower baking oven temperature of heating plate is 280 DEG C, dries temperature time: 85s;
(2) molding press cutting: get the substrate surface compound layer of non-woven fabric fabric after step (1) heating, adopt 1500 tons of hydraulic forming machines shaping, at the briquetting pressure compacted under 55s of 4MPa; Shaping rear material carries out die-cut under 60psi pressure, obtains shaping hat rack semi-finished product;
(3) weld: adopt ultrasonic welding machine welding stand;
A, first press computer contact screen select automatic welding, step (2) gained hat rack semi-finished product are put into moulds of industrial equipment, by front and back positioning datum A, B point is fixed, and then acoustical cotton is put into hat rack and specifies and paste position, and then simultaneously two hands press two buttons about starting switch, multiple operator mechanism is adjacent to acoustical cotton surface along with cylinder at the uniform velocity presses down, produce functional contact face and send out ripple vibration, frictional heat melting effect, directly contact with rear bulkhead surface and paste;
Described ultrasonic welding machine working power is 220V, 20A; Operating air pressure is 0-6kg/cm; Upper and lower stroke is 75mm; Operating temperature is-5-45 DEG C; Weld time is 0-9 second; The depth of weld is 0 ~ 20mm;
Frame is steel, cast iron and bolt welding syndeton.Moulds of industrial equipment adopt CNC processing or epoxy form, accurate positioning.Action control adopts PLC automatically to control, air cylinder driven;
B, cylinder rise automatically, and acoustical cotton welding terminates, and obtains finished product hat rack.
(4) check: after getting the product inspection that step (3) obtains, case by general GP12 requirements, put in storage by 30pcs/ case.
1. outward appearance: surfacing, without fault, without striped, without became uneven, without dirty, without bad phenomenon such as fluffings.Color W330N, aberration >=4 grade.2. density: (300 ± 20) g/m2.3. thickness (3.5 ± 0.5) mm.4. tensile strength >=133N.5. rub resistance: emery wheel quality: 500g, model: H-38, Rubbing number: 300 circles, >=6 grades.6. dimensional stability≤2.5%.7. flammable: after normality and circulation ,≤100mm/min.8. size: L1400mm × W880mm.
Step (1) described base material is polypropylene PP and glass GF compound, and density is 1350g/cm
2, size L1400 × W880, thickness 5mm.
The described non-woven fabrics density of step (1) is 340g/cm
2, size L1400 × W880.
The described acoustical cotton acoustical cotton of step (3) is PET and FELT compound, and density is 340g/cm
2, size L142 × W455 thickness 12mm.
Embodiment 2
The ultrasonic welding process of acoustic part of automobile acoustical cotton, step is as follows:
(1) heat: get polypropylene and the heating of glass composite base material feeding baking oven; During heating, upper baking oven temperature of heating plate is 330 DEG C, and lower baking oven temperature of heating plate is 350 DEG C, dries temperature time: 75s;
(2) molding press cutting: get the substrate surface compound layer of non-woven fabric fabric after step (1) heating, adopt 1500 tons of hydraulic forming machines shaping, at the briquetting pressure compacted under 45s of 6MPa; Shaping rear material carries out die-cut under 40psi pressure, obtains shaping hat rack semi-finished product;
(3) weld: adopt ultrasonic welding machine welding stand;
A, first press computer contact screen select automatic welding, step (2) gained hat rack semi-finished product are put into moulds of industrial equipment, by front and back positioning datum A, B point is fixed, and then acoustical cotton is put into hat rack and specifies and paste position, and then simultaneously two hands press two buttons about starting switch, multiple operator mechanism is adjacent to acoustical cotton surface along with cylinder at the uniform velocity presses down, produce functional contact face and send out ripple vibration, frictional heat melting effect, directly contact with rear bulkhead surface and paste;
Described ultrasonic welding machine working power is 220V, 20A; Operating air pressure is 0-6kg/cm; Upper and lower stroke is 75mm; Operating temperature is-5-45 DEG C; Weld time is 5 seconds; The depth of weld is 10mm;
B, cylinder rise automatically, and acoustical cotton welding terminates, and obtains finished product hat rack.
(4) check: after getting the product inspection that step (3) obtains, case by general GP12 requirements, put in storage by 30pcs/ case.
Step (1) described base material is polypropylene PP and glass GF compound, and density is 1450g/cm
2.The described non-woven fabrics density of step (1) is 340g/cm
2.The described acoustical cotton acoustical cotton of step (3) is PET and FELT compound, and density is 360g/cm
2.
Embodiment 3
The ultrasonic welding process of acoustic part of automobile acoustical cotton, step is as follows:
(1) heat: get polypropylene and the heating of glass composite base material feeding baking oven; During heating, upper baking oven temperature of heating plate is 300 DEG C, and lower baking oven temperature of heating plate is 320 DEG C, dries temperature time: 80s;
(2) molding press cutting: get the substrate surface compound layer of non-woven fabric fabric after step (1) heating, adopt 1500 tons of hydraulic forming machines shaping, at the briquetting pressure compacted under 50s of 5MPa; Shaping rear material carries out die-cut under 50psi pressure, obtains shaping hat rack semi-finished product;
(3) weld: adopt ultrasonic welding machine welding stand;
A, first press computer contact screen select automatic welding, step (2) gained hat rack semi-finished product are put into moulds of industrial equipment, by front and back positioning datum A, B point is fixed, and then acoustical cotton is put into hat rack and specifies and paste position, and then simultaneously two hands press two buttons about starting switch, multiple operator mechanism is adjacent to acoustical cotton surface along with cylinder at the uniform velocity presses down, produce functional contact face and send out ripple vibration, frictional heat melting effect, directly contact with rear bulkhead surface and paste;
Described ultrasonic welding machine working power is 220V, 20A; Operating air pressure is 5kg/cm; Upper and lower stroke is 75mm; Operating temperature is 20 DEG C; Weld time is 5 seconds; The depth of weld is 20mm;
B, cylinder rise automatically, and acoustical cotton welding terminates, and obtains finished product hat rack.
(4) check: after getting the product inspection that step (3) obtains, case by general GP12 requirements, put in storage by 30pcs/ case.
Step (1) described base material is polypropylene PP and glass GF compound, and density is 1400g/cm
2.The described non-woven fabrics density of step (1) is 320g/cm
2.The described acoustical cotton acoustical cotton of step (3) is PET and FELT compound, and density is 350g/cm
2.
Claims (1)
1. the ultrasonic welding process of automotive trim hat rack acoustical cotton, is characterized in that step is as follows:
(1) heat: get polypropylene and the heating of glass composite base material feeding baking oven; During heating, upper baking oven temperature of heating plate is 260 ~ 330 DEG C, and lower baking oven temperature of heating plate is 280 ~ 350 DEG C, dries temperature time: 75-85s;
(2) molding press cutting: get the substrate surface compound layer of non-woven fabric fabric after step (1) heating, adopt 1500 tons of hydraulic forming machines shaping, at the briquetting pressure compacted under 45-55s of 4-6MPa; Shaping rear material carries out die-cut under 40 ~ 60psi pressure, obtains shaping hat rack semi-finished product;
(3) weld: adopt ultrasonic welding machine welding stand;
A, first press computer contact screen select automatic welding, step (2) gained hat rack semi-finished product are put into moulds of industrial equipment, by the front and back positioning datum A on hat rack semi-finished product, B point is fixed, then acoustical cotton is put into the appointment of hat rack semi-finished product and pastes position, then two hands press two, the left and right button of starting switch simultaneously, multiple operator mechanism is adjacent to acoustical cotton surface along with cylinder at the uniform velocity presses down, functional contact face sends ultrasonic wave vibration, frictional heat melting effect, directly contacts with the half-finished rear bulkhead surface of hat rack and pastes;
Described ultrasonic welding machine working power is 220V, 20A; Operating air pressure is 0-6kg/cm
2; Upper and lower stroke is 75mm; Operating temperature is-5-45 DEG C; Weld time is 0-9 second; The depth of weld is 0 ~ 20mm;
B, cylinder rise automatically, and acoustical cotton welding terminates, and obtains finished product hat rack;
(4) check: after getting the product inspection that step (3) obtains, case by general GP12 requirements, put in storage by 30pcs/ case;
Step (1) described base material is polypropylene PP and glass GF compound, and density is 1350-1450g/cm
2;
The described non-woven fabrics density of step (2) is 300-340g/cm
2;
Step (3) described acoustical cotton is PET and FELT compound, and density is 340-360g/cm
2.
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104149334A (en) * | 2014-07-04 | 2014-11-19 | 无锡吉兴汽车部件有限公司 | Ultrasonic welding process for sound absorption sponge of automotive interior ceiling |
| CN105691321A (en) * | 2014-11-24 | 2016-06-22 | 上海新安汽车隔音毡有限公司 | Automobile hemp fiber part and producing method thereof |
| CN105690737A (en) * | 2014-11-26 | 2016-06-22 | 上海新安汽车隔音毡有限公司 | High-frequency welding molding process for automobile soundproofing mat parts |
| CN107901327B (en) * | 2017-12-22 | 2020-06-23 | 上海英汇科技发展有限公司 | Method for welding automobile window frame decorative strip |
| CN110733181A (en) * | 2018-07-21 | 2020-01-31 | 广州中新汽车零部件有限公司 | ultrasonic welding structure of sound-absorbing cotton and welding method thereof |
| CN108973157A (en) * | 2018-09-20 | 2018-12-11 | 无锡吉兴汽车部件有限公司 | A kind of production method of GMT automobile batteries frame |
| CN111098500B (en) * | 2019-12-31 | 2022-02-18 | 昆山隆泰汽车配件有限公司 | Ultrasonic welding device, welding method and object shielding curtain |
| 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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| CN202422724U (en) * | 2011-12-22 | 2012-09-05 | 常州市泛亚微透科技有限公司 | Full-frequency sound absorption cotton |
| CN203005309U (en) * | 2012-11-14 | 2013-06-19 | 成都高原汽车工业有限公司 | Noise insulation device for front wall of engine compartment |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007253332A (en) * | 2006-03-20 | 2007-10-04 | Pacific Ind Co Ltd | Fixing structure of elastic resin sheet and fixing method of elastic resin sheet |
| JP2013099877A (en) * | 2011-11-08 | 2013-05-23 | Kojima Press Industry Co Ltd | Ultrasonic fusion bonding method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202422724U (en) * | 2011-12-22 | 2012-09-05 | 常州市泛亚微透科技有限公司 | Full-frequency sound absorption cotton |
| CN203005309U (en) * | 2012-11-14 | 2013-06-19 | 成都高原汽车工业有限公司 | Noise insulation device for front wall of engine compartment |
| 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 |
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