CN101654081A - Production process for manufacturing roof by polypropylene and glass fiber plate - Google Patents
Production process for manufacturing roof by polypropylene and glass fiber plate Download PDFInfo
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- CN101654081A CN101654081A CN200910182807A CN200910182807A CN101654081A CN 101654081 A CN101654081 A CN 101654081A CN 200910182807 A CN200910182807 A CN 200910182807A CN 200910182807 A CN200910182807 A CN 200910182807A CN 101654081 A CN101654081 A CN 101654081A
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Abstract
The invention relates to a production process for a car roof, in particular to a production process for manufacturing a roof by a polypropylene and glass fiber plate, which is used for being installedat the top of a car and playing roles of heat and sound insulation and beautification and belongs to the technical field of interior parts of cars. The production process for manufacturing the roof by the polypropylene and glass fiber plate comprises the following steps: (1) laying raw materials: laying base materials formed after polypropylene and glass fiber are compounded on a feed platform; (2) baking: placing the laid base materials into an oven to bake; (3) pressing and molding: placing the shell fabrics and the baked base materials into a die to be pressed, cooled and molded so as to form a semi-finished product; and (4) stamping the semi-finished product: delivering the semi-finished product into a stamping die to stamp.
Description
Technical field
The present invention relates to a kind of production method of automobile roof liner, specifically a kind of production technology with manufacturing roof by polypropylene and glass fiber plate is used to be installed in automobile top, and the effect of playing heat insulation, sound insulation and beautifying belongs to the automotive upholstery technical field.
Background technology
Automobile ceiling generally is installed on automobile top, the effect of playing heat insulation, sound insulation and beautifying.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 the prior art, performance figure such as the high sound-absorbing of ceiling, low grammes per square metre, high strength become bottleneck, are restricting the development of ceiling.Existing ceiling normally adopts compound PU (polyurethane) sheet material straight forming, and this kind forming process mainly exists following problem: 1, sound-absorbing index out of reach requirement can only reach 2 grades usually; 2, product rigidity is poor, the easy jackknifing of product of especially long size, sagging; 3, product weight is big, is unfavorable for the car load lightweight, and is energy-conservation.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby a kind of production technology with manufacturing roof by polypropylene and glass fiber plate is provided,, reduce the weight and the working strength of workers of ceiling, improved production efficiency to improve the sound insulation value of ceiling assembly.
According to technical scheme provided by the invention, described production technology with manufacturing roof by polypropylene and glass fiber plate comprises the steps:
(1) raw MAT'L lay: the base material of polypropylene and glass compound back formation is tiled on the feeding table, during lay, that the glass fiber surface in the base material is downward;
(2) baking: the base material that above-mentioned lay is good is put into baking oven and is toasted, and adopts the double oven baking, the last Heating Zone Temperature of main heating furnace: 310~330 ℃, and following Heating Zone Temperature: 370~390 ℃; Preheat the last Heating Zone Temperature of stove: 260~280 ℃, following Heating Zone Temperature: 350~370 ℃, stoving time is 30 ± 2S, the deliquescing of the substrate passed baking after expansion;
(3) compression moulding: the base material after lining and the baking is put into mould inner pressure system and cooling forming, form half-blank; When the compacting cooling forming, forming pressure is controlled at: 4.5~5.5mpa, and molding time is controlled at: 30~35sec;
(4) die-cut half-blank: described half-blank is sent in the die cutting die die-cut, the die-cut time is controlled at 3~4s, die-cut pressure 10~15mpa.
In the described base material of step (1), the upper strata is composited polypropylene and glass and foaming agent by glued membrane, middle compound one deck plastic film, and bottom is that nonwoven fabrics is rebasing; The base material grammes per square metre is 750g/m
2, thickness 6.5mm.
The described lining of step (3) utilizes glued membrane that knit fabric and polyurethane are composited.
Wherein, the material of described glued membrane is a polyethylene, and the polyethylene with foaming agent and pulpous state during use is coated in polypropylene surface, forms one deck glued membrane, glass fibre is placed on the glued membrane again, and glass fibre (abbreviation glass) and polypropylene are combined with each other; Foaming agent wherein plays catalytic action here as a kind of catalyst when polypropylene heats in baking oven, polypropylene is expanded under heating status.
Used glued membrane is that polyethylene slurry is coated on the knit fabric equally in lining, forms glued membrane, polyurethane is placed on the described glued membrane again, and knit fabric and polyurethane are combined with each other.
The invention provides and a kind ofly add the production technology that glass fiber plate is made ceiling, solved the sound-absorbing of ceiling assembly, reached 3 grades of international forward position levels with PP; Ceiling weight reduces greatly, has satisfied the requirement of car load light-weight design; The rigidity height of product can not fracture, sagging; Product is taked automatic production lines production in whole process of production, greatly reduce working strength of workers in the production process, and has improved production efficiency; The product whole process of production does not have objectionable impurities to produce, and belongs to the production method of the automobile ceiling of environment-friendly products.
The specific embodiment
Below in conjunction with embodiment the present invention is further described.
Embodiment 1
Produce CR-V 2PW ceiling, its specification is: L1660 * W1208mm.
The production craft step of this ceiling is as follows:
1. ceiling molding condition setting
(1) molding time: 30 ± 2 seconds;
(2) forming pressure: 5 ± 0.5MPa;
(3) forming temperature: adopt the double oven baking, the last Heating Zone Temperature of main heating furnace: 320 ± 10 ℃, following Heating Zone Temperature: 380 ± 10 ℃; Preheat the last Heating Zone Temperature of stove: 270 ± 10 ℃, following heating zone: 360 ± 10 ℃, stoving time is 30 ± 2S.
2. stone
Lining selects for use the attached PU of knit fabric (polyurethane) foam to add glued membrane; Base material is laminated with the non-air ventilation membrane of lower floor for the upper strata glued membrane is laminated with PP (polypropylene)+GF (glass fibre)+foaming agent, and the bottom nonwoven fabrics is rebasing, and the base material grammes per square metre is 750g/m
2, thickness 6.5mm.
(1) on the material loading chassis, the sheet material placement location is positioned by designing requirement;
(2) get lining at assigned address, indicate by location on the make-up machine and carry out the supplementary material lay, and guarantee that the lining both sides all are in clip and can clamp in the scope.
3. compression moulding
(1) after stone is finished by " clamping " button;
(2) confirm that the correct back of lining lay is by " affirmation " button;
(3) whether the operation of sheet material and lining is normal in the observation video.
4. molding semi product takes out
(1) after upper mould rises, manually molding semi product is taken out;
(2) visible examination: surfacing, no bubble, no outer damage, defective such as break.
(3) qualified molding semi product is put to transport platform and entered die-cut operating area.
5. the die-cut condition enactment of ceiling
(1) the die-cut time: 3 ± 1 seconds;
(2) forming pressure: 11 ± 1MPa.
6. molding semi product is located
(1) left hand is caught roof liner right side middle position, and the right hand is held the roof liner middle position, and roof liner is sent into bicker, locatees with die cavity.
7. start die-cut button
(1) downwards by die-cut button, mould presses down die-cut both hands automatically simultaneously.
Annotate: die-cut end back (being after mould rises) be release button again.
8. get die-cut half-blank
(1) both hands lift at the roof liner central part, and left hand is held left side central authorities, and the right hand is arrested the position, skylight, and ceiling is taken out bicker.
(2) ceiling is adjusted to the forward position upwards, the place hangs on the turnover rack with the sunshade plate hole, and performs status indicator.
9. getting half-blank is positioned in the breach machine and carries out the forward position punching.
10. taking-up punching half-blank is positioned to organize and carries out the annex installation on the upright tool one.
11. take out and be positioned to carry out on the curling machine flange towards the breach half-blank.
12. it is upright that taking-up flange half-blank carries out the secondary group, the back annex is installed.
13. visual testing: answer surfacing during check, zero damage, break, fold, base material are concavo-convex, bubble, glue mark and the unequal defective of tone.
14. the vanning warehouse-in: the ceiling through checking is accurately cased according to the packing technique standard, presses 12pcs/ case warehouse-in.
Embodiment 2
Production Guangzhou Honda 2PX ceiling, its specification is: L1830 * W1330mm.
The production craft step of this ceiling is as follows:
Base material selects for use PP to add the glass formed material.
1. ceiling molding condition setting
(1) molding time: 31 ± 2 seconds;
(2) forming pressure: 5 ± 0.5MPa;
(3) forming temperature: adopt the double oven baking, Heating Zone Temperature on the main heating furnace: 290 ± 10 ℃, following Heating Zone Temperature: 400 ± 10 ℃; Preheat Heating Zone Temperature on the stove: 250 ± 10 ℃, following heating zone: 360 ± 10 ℃, stoving time is 30 ± 2S.
2. stone
Lining selects for use the attached PU foam of knit fabric to add glued membrane; Base material is laminated with the non-air ventilation membrane of lower floor for the upper strata glued membrane is laminated with the PP+GF+ foaming agent, and the bottom nonwoven fabrics is rebasing, and the base material grammes per square metre is 700g/m
2, thickness 6mm.
(1) on the material loading chassis, the sheet material placement location is positioned;
(2) get lining at assigned address, indicate by location on the make-up machine and carry out the supplementary material lay, and guarantee that the lining both sides all are in clip and can clamp in the scope.
3. compression moulding
(1) after stone is finished by " clamping " button;
(2) confirm that the correct back of lining lay is by " affirmation " button;
(3) whether the operation of sheet material and lining is normal in the observation video.
4. molding semi product takes out
(1) after upper mould rises, manually molding semi product is taken out;
(2) visible examination: surfacing, no bubble, no outer damage, defective such as break.
(3) qualified molding semi product is put to transport platform and entered die-cut operating area.
5. the die-cut condition enactment of ceiling
(1) the die-cut time: 3 ± 1 seconds;
(2) forming pressure: 7 ± 0.5MPa.
6. molding semi product is located
(1) left hand is caught roof liner right side middle position, and the right hand is held the roof liner middle position, and roof liner is sent into bicker, locatees with die cavity.
7. start die-cut button
(1) downwards by die-cut button, mould presses down die-cut both hands automatically simultaneously.
Annotate: die-cut end back (being after mould rises) be release button again.
8. get die-cut half-blank
(1) both hands lift at the roof liner central part, and left hand is held left side central authorities, and the right hand is arrested the position, skylight, and ceiling is taken out bicker.
(2) ceiling is adjusted to the forward position upwards, the place hangs on the turnover rack with the sunshade plate hole, and performs status indicator.
9. getting half-blank is positioned in the breach machine and carries out the forward position punching.
10. taking-up punching half-blank is positioned to organize and carries out the annex installation on the upright tool one.
11. take out and be positioned to carry out on the curling machine flange towards the breach half-blank.
12. it is upright that taking-up flange half-blank carries out the secondary group, the back annex is installed.
13. check: answer surfacing during check, zero damage, break, fold, base material are concavo-convex, bubble, glue mark and the unequal defective of tone.
14. the vanning warehouse-in: the ceiling through checking is accurately cased according to the packing technique standard, presses 12pcs/ case warehouse-in.
Embodiment 3
Produce the SGM18 ceiling, its specification is: L1800 * W1330mm.
The production craft step of this ceiling is as follows:
1. ceiling molding condition setting
(1) molding time: 31 ± 2 seconds;
(2) forming pressure: 5 ± 0.5MPa;
(3) forming temperature: adopt the double oven baking, Heating Zone Temperature on the main heating furnace: 290 ± 10 ℃, following Heating Zone Temperature: 400 ± 10 ℃; Preheat Heating Zone Temperature on the stove: 250 ± 10 ℃, following heating zone: 360 ± 10 ℃, stoving time is 30 ± 2S.
2. stone
Lining selects for use the attached PU foam of knit fabric to add glued membrane; Base material is laminated with the non-air ventilation membrane of lower floor for the upper strata glued membrane is laminated with the PP+GF+ foaming agent, and the bottom nonwoven fabrics is rebasing, and the base material grammes per square metre is 800g/m
2, thickness 7mm.
(1) on the material loading chassis, the sheet material placement location is positioned;
(2) get lining at assigned address, indicate by location on the make-up machine and carry out the supplementary material lay, and guarantee that the lining both sides all are in clip and can clamp in the scope.
3. compression moulding
(1) after stone is finished by " clamping " button;
(2) confirm that the correct back of lining lay is by " affirmation " button;
(3) whether the operation of sheet material and lining is normal in the observation video.
4. molding semi product takes out
(1) after upper mould rises, manually molding semi product is taken out;
(2) visible examination: surfacing, no bubble, no outer damage, defective such as break.
(3) qualified molding semi product is put to transport platform and entered die-cut operating area.
5. the die-cut condition enactment of ceiling
(1) the die-cut time: 3 ± 1 seconds;
(2) forming pressure: 7 ± 0.5MPa.
6. molding semi product is located
(1) left hand is caught roof liner right side middle position, and the right hand is held the roof liner middle position, and roof liner is sent into bicker, locatees with die cavity.
7. start die-cut button
(1) downwards by die-cut button, mould presses down die-cut both hands automatically simultaneously.
Annotate: die-cut end back (being after mould rises) be release button again.
8. get die-cut half-blank
(1) both hands lift at the roof liner central part, and left hand is held left side central authorities, and the right hand is arrested the position, skylight, and ceiling is taken out bicker.
(2) ceiling is adjusted to the forward position upwards, the place hangs on the turnover rack with the sunshade plate hole, and performs status indicator.
9. getting half-blank is positioned in the breach machine and carries out the forward position punching.
10. taking-up punching half-blank is positioned to organize and carries out the annex installation on the upright tool one.
11. take out and be positioned to carry out on the curling machine flange towards the breach half-blank.
12. it is upright that taking-up flange half-blank carries out the secondary group, the back annex is installed.
13. check: answer surfacing during check, zero damage, break, fold, base material are concavo-convex, bubble, glue mark and the unequal defective of tone.
14. the vanning warehouse-in: the ceiling through checking is accurately cased according to the packing technique standard, presses 12pcs/ case warehouse-in.
Claims (3)
1, a kind of production technology with manufacturing roof by polypropylene and glass fiber plate is characterized in that described process using following steps:
(1) raw MAT'L lay: the base material of polypropylene and glass compound back formation is tiled on the feeding table, during lay, that the glass fiber surface in the base material is downward;
(2) baking: the base material that above-mentioned lay is good is put into baking oven and is toasted, and adopts the double oven baking, the last Heating Zone Temperature of main heating furnace: 310~330 ℃, and following Heating Zone Temperature: 370~390 ℃; Preheat the last Heating Zone Temperature of stove: 260~280 ℃, following Heating Zone Temperature: 350~370 ℃, stoving time is 30 ± 2S, the deliquescing of the substrate passed baking after expansion;
(3) compression moulding: the base material after lining and the baking is put into mould inner pressure system and cooling forming, form half-blank; When the compacting cooling forming, forming pressure is controlled at: 4.5~5.5mpa, and molding time is controlled at: 30~35sec;
(4) die-cut half-blank: described half-blank is sent in the die cutting die die-cut, the die-cut time is controlled at 3~4s, die-cut pressure 10~15mpa.
2, production technology according to claim 1 is characterized in that, in the described base material of step (1), the upper strata is composited polypropylene and glass and foaming agent by glued membrane, middle compound one deck plastic film, and bottom is that nonwoven fabrics is rebasing; The base material grammes per square metre is 750g/m
2, thickness 6.5mm.
3, production technology according to claim 1 is characterized in that, the described lining of step (3) utilizes glued membrane that knit fabric and polyurethane are composited.
Priority Applications (1)
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CN2009101828070A CN101654081B (en) | 2009-09-07 | 2009-09-07 | Production process for manufacturing roof by polypropylene and glass fiber plate |
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CN2009101828070A CN101654081B (en) | 2009-09-07 | 2009-09-07 | Production process for manufacturing roof by polypropylene and glass fiber plate |
Publications (2)
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CN101654081A true CN101654081A (en) | 2010-02-24 |
CN101654081B CN101654081B (en) | 2011-04-20 |
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CN2009101828070A Expired - Fee Related CN101654081B (en) | 2009-09-07 | 2009-09-07 | Production process for manufacturing roof by polypropylene and glass fiber plate |
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