CN108407265A - The forming method of automotive trim epidermis - Google Patents
The forming method of automotive trim epidermis Download PDFInfo
- Publication number
- CN108407265A CN108407265A CN201810201236.XA CN201810201236A CN108407265A CN 108407265 A CN108407265 A CN 108407265A CN 201810201236 A CN201810201236 A CN 201810201236A CN 108407265 A CN108407265 A CN 108407265A
- Authority
- CN
- China
- Prior art keywords
- plastic sheet
- automotive trim
- trim epidermis
- clamp frame
- forming method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/10—Forming by pressure difference, e.g. vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/04—Combined thermoforming and prestretching, e.g. biaxial stretching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/58—Upholstery or cushions, e.g. vehicle upholstery or interior padding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The present invention provides a kind of forming method of automotive trim epidermis, including：Step S100：Using clamp frame grip plastic sheet material and plastic sheet heating region is moved to heat；Wherein, the original dimension of clamp frame is 1140*700mm；Step S110：After heating 20 25 seconds to plastic sheet, the size of plastic sheet is stretched to 1140*720mm using clamp frame；Step S120：After continuing heating to the plastic sheet after stretching 10 15 seconds, it is moved in molding die and carries out negative pressure of vacuum molding；Step S130：Negative pressure of vacuum plastic sheet after molding is cooled down, automotive trim epidermis is formed.Using the forming method for the automotive trim epidermis that aforementioned present invention provides, the utilization rate of plastic sheet can be not only improved, the intermediate region for being also prevented from plastic sheet collapses.
Description
Technical field
The present invention relates to vacuum forming technology fields, more specifically, are related to a kind of forming method of automotive trim epidermis.
Background technology
The moulding process of automotive trim epidermis mainly has a roto casting and vacuum forming technique, vacuum forming technique relative to
Roto casting has small, an efficient feature of investing, while the obtained epidermis of the female mould forming in vacuum forming technique not only line
Reason is uniformly beautiful, additionally it is possible to reach appearance identical with roto casting, and the service life of vacuum forming mould is far above slush moulding
The service life of mold utilizes currently, the main restriction point of vacuum forming technique is that utilization rate of raw materials is low, and accessory size is smaller
Rate is smaller, and industry average utilization is only 60% or so at present.Influencing the main restriction point of vacuum forming technique stock utilization is
It is more larger that technique supplements accounting.
Invention content
In view of the above problems, the object of the present invention is to provide a kind of forming methods of automotive trim epidermis, to solve tradition
Vacuum forming technique utilization rate of raw materials is low and problem that ratio of briquetting is not high.
The forming method of automotive trim epidermis provided by the invention, including：
Step S100：Using clamp frame grip plastic sheet material and plastic sheet heating region is moved to heat；Wherein, it presss from both sides
The original dimension of tight frame is 1140*700mm；
Step S110：After being heated 20-25 seconds to plastic sheet, the size of plastic sheet is stretched to 1140* using clamp frame
720mm；
Step S120：After continuing heating to the plastic sheet after stretching 10-15 seconds, it is negative to be moved to progress vacuum in molding die
It is molded；
Step S130：Negative pressure of vacuum plastic sheet after molding is cooled down, automotive trim epidermis is formed.
Compared with prior art, beneficial effects of the present invention are：
1, after plastic sheet heating, before negative pressure of vacuum molding, plastic sheet is pre-stretched, is ensureing that plastic sheet is strong
Plastic sheet is set to broaden in the case of degree, to improve the utilization rate of plastic sheet；
2, being pre-stretched to plastic sheet can also make the intermediate region of plastic sheet thinning, prevent the middle area of plastic sheet
Domain collapses.
Specific implementation mode
The forming method of automotive trim epidermis provided by the invention, including：
Step S100：Using clamp frame grip plastic sheet material and plastic sheet heating region is moved to heat；Wherein, it presss from both sides
The original dimension of tight frame is 1140*700mm.
There are two the purposes heated to plastic sheet, and a purpose is in order to be pre-stretched to plastic sheet, separately
One purpose is to carry out negative pressure of vacuum molding to the plastic sheet after stretching.
The size of clamp frame is identical as the size of plastic sheet, and the original dimension of plastic sheet is also 1140*700mm, i.e.,
The length of plastic sheet is 1140 millimeters, width is 700 millimeters.
Step S110：After being heated 20-25 seconds to plastic sheet（Heating time is related to used material）, utilize folder
The size of plastic sheet is stretched to 1140*720mm by tight frame.
That is, the width of plastic sheet is elongated 20 millimeters by clamp frame（Tensile elongation ratio about 3%, the stretching
Influence of the ratio to epidermal thickness matches without influence subsequent product）, the width of stretched plastic sheet material elongates 20 millimeters both can be with
Ensure the intensity of plastic sheet, and the utilization rate of sheet material can be improved, to save raw material, also, the plastic sheet after stretching
Material is not in phenomenon of caving in since in-between region is thinning, to improve the molding ratio of briquetting of negative pressure of vacuum.
Step S120：After continuing heating to the plastic sheet after stretching 10-15 seconds, it is moved in molding die and carries out very
Idling is molded.
Step S130：Negative pressure of vacuum plastic sheet after molding is cooled down, automotive trim epidermis is formed.
The type of cooling can be air-cooled or water cooling, by negative pressure of vacuum plastic sheet after molding be cooled to 50 DEG C it is formed below
Automotive trim epidermis finally carries out epidermis to automotive trim epidermis and cuts or demould.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (1)
1. a kind of forming method of automotive trim epidermis, including：
Step S100：Using clamp frame grip plastic sheet material and the plastic sheet is moved to heating region heats；Its
In, the original dimension of the clamp frame is 1140*700mm；
Step S110：After being heated 20-25 seconds to the plastic sheet, using the clamp frame by the size of the plastic sheet
It is stretched to 1140*720mm；
Step S120：After continuing heating to the plastic sheet after stretching 10-15 seconds, it is negative to be moved to progress vacuum in molding die
It is molded；
Step S130：Negative pressure of vacuum plastic sheet after molding is cooled down, automotive trim epidermis is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810201236.XA CN108407265A (en) | 2018-03-12 | 2018-03-12 | The forming method of automotive trim epidermis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810201236.XA CN108407265A (en) | 2018-03-12 | 2018-03-12 | The forming method of automotive trim epidermis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108407265A true CN108407265A (en) | 2018-08-17 |
Family
ID=63131014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810201236.XA Pending CN108407265A (en) | 2018-03-12 | 2018-03-12 | The forming method of automotive trim epidermis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108407265A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10264243A (en) * | 1997-03-25 | 1998-10-06 | Asano Kenkyusho:Kk | Method and device for molding of resin sheet |
| CN201712171U (en) * | 2010-06-02 | 2011-01-19 | 恒丰国际实业有限公司 | Two-section parallel extension device for chain tracks of plastic absorbing machine |
| CN202225429U (en) * | 2011-09-09 | 2012-05-23 | 林启鹏 | Shell fabric clamping frame of vacuum-absorption forming machine |
| CN103624968A (en) * | 2013-09-02 | 2014-03-12 | 潘震州 | Plastic sheet molding process for automotive body or automobile interior decorative parts |
| CN104708799A (en) * | 2013-12-12 | 2015-06-17 | 苏州市澄美机械设备有限公司 | Feeding device of plastic vacuum forming machine |
| CN106079387A (en) * | 2016-06-23 | 2016-11-09 | 山东大学 | The vacuum plastics sucking molding technique of the regenerated leather epidermis of automobile column plaque and device |
-
2018
- 2018-03-12 CN CN201810201236.XA patent/CN108407265A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10264243A (en) * | 1997-03-25 | 1998-10-06 | Asano Kenkyusho:Kk | Method and device for molding of resin sheet |
| CN201712171U (en) * | 2010-06-02 | 2011-01-19 | 恒丰国际实业有限公司 | Two-section parallel extension device for chain tracks of plastic absorbing machine |
| CN202225429U (en) * | 2011-09-09 | 2012-05-23 | 林启鹏 | Shell fabric clamping frame of vacuum-absorption forming machine |
| CN103624968A (en) * | 2013-09-02 | 2014-03-12 | 潘震州 | Plastic sheet molding process for automotive body or automobile interior decorative parts |
| CN104708799A (en) * | 2013-12-12 | 2015-06-17 | 苏州市澄美机械设备有限公司 | Feeding device of plastic vacuum forming machine |
| CN106079387A (en) * | 2016-06-23 | 2016-11-09 | 山东大学 | The vacuum plastics sucking molding technique of the regenerated leather epidermis of automobile column plaque and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180817 |