CN103386939B - Cushion and manufacture method thereof for vehicle - Google Patents
Cushion and manufacture method thereof for vehicle Download PDFInfo
- Publication number
- CN103386939B CN103386939B CN201210581637.5A CN201210581637A CN103386939B CN 103386939 B CN103386939 B CN 103386939B CN 201210581637 A CN201210581637 A CN 201210581637A CN 103386939 B CN103386939 B CN 103386939B
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- Prior art keywords
- froth bed
- cushion
- vehicle
- soft
- bed
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 239000011347 resin Substances 0.000 claims abstract description 28
- 229920005989 resin Polymers 0.000 claims abstract description 28
- 238000007906 compression Methods 0.000 claims abstract description 19
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 239000006260 foam Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 claims description 7
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 20
- 238000005516 engineering process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 239000004620 low density foam Substances 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229940025703 Topical Product Drugs 0.000 description 1
- 230000003466 anti-cipated Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Abstract
The present invention relates to a kind of cushion for vehicle and manufacture method thereof.A kind of cushion for vehicle, including: outermost top layer；The soft froth bed of the bottom on top layer；Protection froth bed; protection froth bed is attached to the bottom of soft froth bed, and protects damaging of heat that froth bed makes soft froth bed will not be subject to during molding by being attached to the bottom of soft froth bed after being manufactured by compression under elevated temperature and pressure conditions and pressure；And resin bed course, it is injected into the bottom of protection froth bed and is bonded thereto；Also provide for the manufacture method of a kind of cushion for vehicle.
Description
Cross-Reference to Related Applications
This application claims the korean patent application submitted on May 11st, 2012
The priority of No. 10-2012-0050012, the entire disclosure of which is hereby incorporated by, for logical
Cross this all purposes quoted.
Technical field
The present invention relates to a kind of cushion for vehicle, in order to manufacture soft bubble in application injection moulding
In the entirety bumper of foam top layer, make foam during application low density foam damage and minimize, it is to avoid
Topical product defect also makes recovery rate maximize, and is directed to the manufacture of a kind of cushion for vehicle
Method.
Background technology
Fig. 1 is the injection molding figure showing the cushion according to correlation technique, and Fig. 2 is display Fig. 1
Shown in the figure pressing down phenomenon of soft foam of cushion, Fig. 3 is show shown in Fig. 1 soft
The figure of the section of pad.
Traditionally, when soft foam applications is to padding (such as, the bumper of vehicle) to improve user
Soft feel time, there is many situations: the soft foam that heat, pressure are wanting in is when molding
Wrinkling by local pressure down or local, therefore can not be properly formed the outward appearance of product.
Therefore, when using relatively low density foam not use the foam for general injection, to carry
During highly-flexible sensation, the problem that there is soft foam excessive damage.As shown in fig. 1, manufacture is worked as
During cushion, top layer 11 and soft foam 12 are arranged on a mould 10 and via at another
When geat 22 in individual mould 20 discharges resin mat 24, existing problems: as shown in Figure 2,
The thickness of soft foam 12 is uneven due to the compression of two moulds of molding period 10,20.Logical
Cross the profile of Fig. 3 it has also been found that this phenomenon, accordingly, it would be desirable to the thickness of soft foam can be solved not
The technology of uniform problem.
The information being disclosed in this background section is merely intended to deepen the general background to the present invention
The understanding of technology, and be not construed as recognizing or imply in any form that this information structure is
Prior art known in those skilled in the art.
Summary of the invention
The present invention specifically addresses the problems referred to above.Various aspects of the invention provide one for car
Cushion so that foam during application low density foam damages and minimizes, make thickness uniformly the most also
Recovery rate is made to maximize；Additionally also provide for the manufacture method of a kind of cushion for vehicle.
Various aspects of the invention provide a kind of cushion for vehicle, including: outermost top layer；
Soft froth bed, described soft froth bed is in the bottom on top layer；Protection froth bed, described protection foam
Layer is incorporated into the bottom of described soft froth bed, and described protection froth bed by high temperature and
The bottom of described soft froth bed it is attached to make described soft foam after being manufactured by compression under high pressure
Layer is not damaged by heat and pressure during molding；And resin bed course, described resin mat
Layer is injected and is incorporated into the bottom of described protection froth bed.
Described protection froth bed can be made up of the material including high melt strength, propylene.
Described protection froth bed can by inject application during described resin bed course pressure and
Under temperature conditions, manufactured by compression.
Described soft froth bed and described protection froth bed can be attached to each other by thermal bonding.
Described resin bed course can be by being discharged to described protection foam via multiple molding geats
The bottom of layer the then injection moulding by compression.
The described cushion for vehicle can be the bumper of vehicle.
Various aspects of the invention provide the manufacture method of a kind of cushion for vehicle, including:
Positioning step, navigates to a mould by outer housing, described outer housing include top layer, soft froth bed and
Protection froth bed, described protection froth bed is attached to after being manufactured by compression at high temperature and pressure
The bottom of described soft froth bed；Discharge step, will via the geat being arranged in another mould
Resin bed course is discharged to described protection froth bed；Compression step, after discharging described resin bed course
Described resin bed course is compressed.
Herein, described positioning step may include that preparation process, by described soft froth bed shape
Become the bottom on described top layer；Forming step, by high temperature and pressure to described protection bubble
Foam layer is compressed manufacturing described protection froth bed；And attachment steps, by described protection bubble
Foam layer is attached to the bottom of described soft froth bed.
In described forming step, can be by the temperature and pressure condition at described compression step
Under be compressed manufacturing described protection froth bed to described protection froth bed.
In described forming step, the material system including high melt strength, propylene can be used
Make described protection froth bed.
Methods and apparatus of the present invention has additional features and advantages, these characteristics and advantage from
The accompanying drawing that is incorporated herein and detailed description of the invention subsequently will be apparent from, or will
Stating in detail in the accompanying drawing being incorporated herein and detailed description of the invention subsequently, these are attached
Figure and detailed description of the invention are provided commonly for explaining the certain principles of the present invention.
Accompanying drawing explanation
Fig. 1 is the injection molding figure showing the cushion according to correlation technique；
Fig. 2 is the figure pressing down phenomenon of the soft foam showing the cushion shown in Fig. 1；
Fig. 3 is the figure of the section showing the cushion shown in Fig. 1；
Fig. 4 is the figure showing the example process for manufacturing the cushion according to the present invention；And
Fig. 5 is the flow chart of the manufacture method about the cushion shown in Fig. 4.
It is to be appreciated that appended accompanying drawing is not necessarily drawn to scale, it illustrates certain journey
Through each feature of ultimate principle of the present invention simplifying on degree.Invention disclosed herein
Specific design feature include that such as concrete size, direction, position and profile will be partly by having
The environment that body to be applied and to use determines.
In the drawings, in several figures running through accompanying drawing, reference refers to the present invention
The identical or part of equivalence.
Detailed description of the invention
Each embodiment of the present invention it is described more detail below, in the accompanying drawings and description below
In show the example of these embodiments.Although the present invention will be with exemplary group mutually
Conjunction is described, it will be understood that this specification is not intended to limit the invention to those
Exemplary.On the contrary, it is contemplated that not only cover these exemplary,
And cover and can be included in the spirit and scope of the present invention being defined by the appended claims
Within various replacements, amendment, equivalents and other embodiment.
Fig. 4 is the process showing the cushion for manufacturing each embodiment according to the present invention
Figure, Fig. 5 is the flow chart of the manufacture method about the cushion shown in Fig. 4.
The cushion of the present invention includes: outermost top layer 120；The soft froth bed of the bottom on top layer 120
140；Protection froth bed 160, protection froth bed 160 is attached to the bottom of soft froth bed 140,
And protect froth bed 160 by being attached after being manufactured by compression under elevated temperature and pressure conditions
Bottom to soft froth bed 140 makes the heat that soft froth bed 140 will not be subject to during molding
Infringement with pressure；And resin bed course 240, it is injected into the bottom of protection froth bed 160
And it is bonded thereto.
That is, top layer 120, soft froth bed 140 and protection froth bed 160 are stacked gradually to one
Mould 100, then discharges resin bed course 240 or is molded into protection froth bed 160 on the spot, connect
Compression for injection molding mould.Therefore, when application protection froth bed 160, permissible
Block the heat during discharging resin bed course 240 by protection froth bed 160 and pressure improves
The problem in uneven thickness of soft foam 140.
It addition, protection froth bed 160 is by including that high melt strength, propylene (includes about 10%
Or bigger mass ratio) material make, in order to will not be easily by heat and pressure change.Logical
Cross do so, even if under the formation condition of high temperature and high pressure, also can effectively protect soft froth bed,
To significantly reduce local defect rate.
On the other hand, the bar of the pressure and temperature can applied during injecting resin bed course 240
Under part, manufacture protection froth bed 160.Such as, froth bed can with resin bed course 240 integratedly
Formed.For this purpose, as shown in Figure 4, temperature sensor and pressure it are disposed with in a mold
Force transducer, after discharging resin bed course, the pressure and temperature bar of application during detection compression
Part, and by the maximum pressure of the condition detected and at a temperature of be compressed making to it
Make protection froth bed.
As result, even if being applied to the high temperature and high pressure condition of real protection froth bed later
Under, protection froth bed also will not be changed, and therefore, soft froth bed is valid protected.This is permissible
Be seen as a kind of can be by being initially subjected to the technology that mal-condition makes damage later minimize.
On the other hand, soft froth bed 140 and protection froth bed 160 can by thermal bonding each other
Attachment, in order to tolerance high temperature and high pressure condition later.It addition, by noting via multiple moulds
Resin bed course 240 is discharged to protect the bottom of froth bed 160, then carry out it by mouth 220
Compression makes resin bed course 240 injection moulding, and the cushion being used for vehicle is highly suitable for
The bumper of vehicle.This bumper is the soft feel in order to keep its outer housing, and firmly
Support its internal ruggedness.
And, according to the present invention, make the bottom of the inside of outer housing damage and minimize, also make product
Soft feel be uniformly distributed around, result can improve the value of product.
On the other hand, include for manufacturing the method for cushion: positioning step S100, outer housing is fixed
Position is to a mould 100, and this outer housing includes top layer 120, soft froth bed 140 and protective layer 160,
After wherein the compression under by high temperature and high pressure manufactures protective layer 160, by protective layer 160
It is attached to the bottom of soft froth bed 140；Discharge step S200, via being arranged in another mould
Resin bed course 240 is discharged to protect froth bed 160 by the geat 220 in 200；And compression step
Rapid S300, is compressed it after discharging resin bed course 240.
Herein, positioning step S100 may include that preparation process S110, on top layer 120
Bottom form soft froth bed 140；Forming step S130, by high temperature and pressure to guarantor
Protect froth bed 160 to be compressed manufacturing protection froth bed 160；And attachment steps S140,
Protection froth bed 160 is attached to the bottom of soft froth bed 140.
I.e., first, being combined in top layer and soft froth bed, then protection froth bed is at high temperature
With condition of high voltage downforce molding, then pass through thermal bonding and be fixed to the bottom of soft froth bed.
More specifically, forming step S130 is by the temperature and pressure condition at compression step S300
Under to protection froth bed 160 be compressed manufacturing protection froth bed, in order to by be initially subjected to dislike
Bad condition make later to protection froth bed damage minimize.To this end, when forming protection bubble
When compressing actual resin bed course before foam layer, the surface of the soft froth bed of mould inside can be detected
The pressure and temperature S120 that place produces, may then pass through the peak at pressure and temperature and divides into
Determine operating condition to manufacture protection froth bed.
On the other hand, in forming step S130, use the material including high melt strength, propylene
Material manufactures protection froth bed 160, in order to effectively protect soft foam under elevated temperature and pressure conditions
Layer.
According to the cushion for vehicle as discussed above and manufacture method thereof, can be at global formation
Period makes to be added to the local pressure of soft foam and heat to soft foam by application protection froth bed
The damage that causes of bottom minimize, wherein protection froth bed is by including high melt strength, propylene
Material make.Therefore, spread all over soft froth bed and can obtain similar soft feel, and can
To prevent the local of the inside caused by manufacture process or use from subsideing.
It addition, in order to make during global formation by the soft foam bottom of pressure and heat
Value of the product keeps equal, to protection foam under conditions of identical with molding actual resin bed course
It is shaped, therefore, it can make impact minimize.
Explaining for convenience and accurately limit claims, term bottom etc. is used for reference
The position of these features shown in accompanying drawing describes the feature of exemplary.
The aforementioned description to the specific illustrative embodiment of the present invention be in order at explanation and describe
Purpose.These describe and are not intended to as the limit present invention, or limit the invention to disclosed
Precise forms, and obviously, according to above-mentioned teaching, can much change and change.Right
The purpose that exemplary carries out selecting and be described is to explain that the present invention's is specific former
Reason and actual application thereof, so that others skilled in the art are capable of and utilize this
The various exemplary of invention and various different choice and change.The scope of the present invention is anticipated
It is being limited by appended claims and equivalents thereof.
Claims (9)
1. for a cushion for vehicle, including:
Outermost top layer；
Soft froth bed, described soft froth bed is formed at the bottom on described outermost top layer；
Protection froth bed, described protection froth bed is incorporated into the bottom of described soft froth bed, and
And described protection froth bed by be compressed to form at high temperature and pressure be attached to afterwards described
The bottom of soft froth bed makes described soft froth bed not by heat and pressure during molding subsequently
The infringement of power；And
Resin bed course, described resin bed course is injected and is incorporated under described protection froth bed
Portion；
Wherein, described protection froth bed is injecting pressure and the temperature of application during described resin bed course
Under the conditions of degree, manufactured by compression.
Cushion for vehicle the most according to claim 1, wherein, described protection foam
Layer is made up of the material including high melt strength, propylene.
Cushion for vehicle the most according to claim 1, wherein, described soft froth bed
It is attached to each other by thermal bonding with described protection froth bed.
Cushion for vehicle the most according to claim 1, wherein, described resin bed course
By being discharged to the bottom of described protection froth bed via multiple molding geats and then passing through pressure
Contract and injection moulding.
Cushion for vehicle the most according to claim 1, the described cushion for vehicle
It it is the bumper of vehicle.
6. it is used for a manufacture method for the cushion of vehicle, including:
Positioning step, outer housing is navigated to a mould by described positioning step, and described outer housing includes
Top layer, soft froth bed and protection froth bed, described protection froth bed is pressed at high temperature and pressure
Contracting is attached to the bottom of described soft froth bed after being formed；
Discharge step, described discharge step via the geat being arranged in another mould by resin
Bed course is discharged to described protection froth bed；And
Compression step, described compression step is discharging after described resin bed course described resin mat
Layer is compressed.
The manufacture method of the cushion for vehicle the most according to claim 6, wherein said
Positioning step includes:
Preparation process, described soft froth bed is formed at the bottom on described top layer by described preparation process；
Forming step, described forming step is by high temperature and pressure to described protection froth bed
It is compressed manufacturing described protection froth bed；
Attachment steps, described protection froth bed is attached to described soft froth bed by described attachment steps
Bottom.
The manufacture method of the cushion for vehicle the most according to claim 7, wherein said
Forming step is passed through under the conditions of the temperature and pressure of described compression step described protection froth bed
It is compressed manufacturing described protection froth bed.
The manufacture method of the cushion for vehicle the most according to claim 7, wherein said
Forming step uses and includes that the material of high melt strength, propylene is to manufacture described protection froth bed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20120050012A KR20130126156A (en) | 2012-05-11 | 2012-05-11 | Softpad and manufacturing method thereof for vehicle |
| KR10-2012-0050012 | 2012-05-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103386939A CN103386939A (en) | 2013-11-13 |
| CN103386939B true CN103386939B (en) | 2016-11-30 |
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