CN113103558A - Hot-pressing and cold-pressing molding process for automobile safety airbag - Google Patents
Hot-pressing and cold-pressing molding process for automobile safety airbag Download PDFInfo
- Publication number
- CN113103558A CN113103558A CN202110328899.XA CN202110328899A CN113103558A CN 113103558 A CN113103558 A CN 113103558A CN 202110328899 A CN202110328899 A CN 202110328899A CN 113103558 A CN113103558 A CN 113103558A
- Authority
- CN
- China
- Prior art keywords
- pressing
- hot
- cold
- air bag
- temperature
- 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
- 238000003825 pressing Methods 0.000 title claims abstract description 102
- 238000007731 hot pressing Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000008569 process Effects 0.000 title claims abstract description 35
- 238000000465 moulding Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 238000007689 inspection Methods 0.000 claims abstract description 12
- 238000007493 shaping process Methods 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 230000017525 heat dissipation Effects 0.000 claims abstract description 6
- 238000004806 packaging method and process Methods 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000005485 electric heating Methods 0.000 claims description 5
- 238000005336 cracking Methods 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 description 6
- 238000000748 compression moulding Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 2
- 206010050392 Face injury Diseases 0.000 description 1
- 206010019196 Head injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
Images
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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/84—Heating or cooling
-
- 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
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
Abstract
The invention discloses a hot-pressing and cold-pressing molding process of an automobile safety airbag, which comprises the following steps: s1, folding the air bag provided with the support ring; s2, conveying the folded air bag in the S1 to a hot pressing device by a robot, and pressurizing and heating for shaping; s3, conveying the hot-pressed air bag to a cold pressing device by a robot, and performing heat dissipation, cooling and shaping; and S4, performing quality inspection on the air bag taken out in the S3, and packaging the product qualified in the quality inspection, namely completing one-time production. The invention adopts the combined process of hot pressing and cold pressing to compress and form the automobile safety air bags made of different materials, the volume is smaller after high-temperature hot pressing, the shaped air bag is not easy to rebound and deform, the surface temperature of the air bag after hot pressing is quickly reduced by the cold pressing process, and the air bag is prevented from cracking and deforming due to the temperature difference (more than 160 ℃) of the hot pressing and cold pressing process, so that the air bag can be quickly transferred to the next assembly process.
Description
Technical Field
The invention relates to the technical field of safety airbag production, in particular to a hot-pressing and cold-pressing molding process for an automobile safety airbag.
Background
An airbag system is a passive safety (see vehicle safety performance) protection system, and is used in cooperation with a seat belt to provide effective collision protection for passengers. When the automobile collides, the automobile safety air bag can reduce the head injury rate by 25 percent and the face injury rate by about 80 percent.
After the production and processing of automobile safety air bag are accomplished, often need fold the gasbag to carry out compression molding to it after folding the completion, however in prior art, the compression molding's of gasbag effect often is difficult to satisfy designer's design demand, and the volume shrinkage is unsatisfactory, and machining efficiency is lower simultaneously.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a hot-pressing and cold-pressing molding process of an automobile safety airbag, which comprises the following steps:
s1, folding the air bag provided with the support ring;
s2, conveying the folded air bag in the S1 to a hot pressing device by a robot, and pressurizing and heating for shaping;
s3, conveying the hot-pressed air bag to a cold pressing device by a robot, and performing heat dissipation, cooling and shaping;
and S4, performing quality inspection on the air bag taken out in the S3, and packaging the product qualified in the quality inspection, namely completing one-time production.
Further, in S2, the hot pressing device includes a forming mechanism and a heating hood, and the heating hood adopts an electric heating mode, where the maximum electric heating temperature can reach 180 ℃.
Further, the molding mechanism subjected to pressurization and heating setting in the S2 is sent to a cold pressing device, and the cold pressing device is a cooling fan cover.
Further, the materials of the airbag to be extruded in S2 are classified into three types, i.e., uncoated surface, coated surface and hybrid type.
Further, the hot pressing temperature of the automobile safety airbag with the surface made of the uncoated material is 75-85 ℃, the hot pressing pressure is 20-35 KN, the pressing time is 8-15 s, the cold pressing temperature is-15-5 ℃, the cold pressing pressure is 25-40 KN, and the pressing time is 8-15 s.
Further, the hot pressing temperature of the automobile safety airbag with the coating material on the surface is 65-75 ℃, the hot pressing pressure is 30-40 KN, the pressing time is 8-15 s, the cold pressing temperature is-10-5 ℃, the cold pressing pressure is 25-35 KN, and the pressing time is 8-15 s.
Further, the hot-pressing temperature of the automobile safety airbag with the surface made of the mixed type material is 80-90 ℃, the hot-pressing pressure is 25-35 KN, the pressing time is 8-15 s, the cold-pressing temperature is-18-7 ℃, the cold-pressing pressure is 30-40 KN, and the pressing time is 8-15 s.
The invention has the beneficial effects that: the automobile safety air bag is compressed and formed by adopting a hot pressing and cold pressing combined process, the volume is smaller after high-temperature hot pressing, the formed air bag is not easy to rebound and deform, the surface temperature of the air bag after hot pressing is quickly reduced by the cold pressing process, and the air bag is prevented from cracking and deforming due to the temperature difference (over 160 ℃) of the hot pressing and cold pressing process, so that the air bag can be quickly transferred to the next assembly procedure, and the air bag is good in traceability and small in deformation rate and is particularly suitable for full-automatic assembly line production; aiming at air bags with different processes and different materials, different temperature control processes and pressure control processes are selected, so that the surfaces of the air bags are prevented from being burnt and coked and hardened due to high temperature, and good air permeability and softness are still maintained; the hot pressing process adopts an electric heating mode, the maximum temperature can reach 180 ℃, process parameters are set for air bags of different processes and different materials, and when the temperature in the forming mechanism is higher than or lower than the set temperature parameters, the process is automatically interrupted, and continuous circulation is realized; the cold pressing process is characterized in that a forming mechanism adopts air cooling, and the air bag after hot pressing is used for quickly cooling through certain temperature and pressure; compared with the air bag prepared by the normal pressure process, the process has the advantages that the volume is reduced by more than 35%, and meanwhile, the compression molding efficiency is higher, so that the air bag with larger size can be conveniently installed in the same installation space in an automobile.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the construction of a hot press apparatus and a cold press apparatus according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1
As shown in figure 1, the hot-pressing and cold-pressing forming process for the automobile safety airbag comprises the following steps:
s1, folding the air bag provided with the support ring;
s2, conveying the folded air bag in the S1 to a hot pressing device by a robot, and pressurizing and heating for shaping;
s3, conveying the hot-pressed air bag to a cold pressing device by a robot, and performing heat dissipation, cooling and shaping;
and S4, performing quality inspection on the air bag taken out in the S3, and packaging the product qualified in the quality inspection, namely completing one-time production.
In S2, the hot press device includes a forming mechanism 1 and a heating hood 2, and the heating hood 2 is electrically heated up to 180 ℃.
And conveying the molding mechanism 1 subjected to pressurization and heating setting in the S2 to a cold pressing device 3, wherein the cold pressing device 3 is a cooling fan cover.
Wherein, the materials of the automobile safety airbag to be extruded in the S2 are divided into three types, namely no coating on the surface, coating on the surface and mixed type.
The hot pressing temperature of the automobile safety airbag with the surface made of the uncoated material is 75 ℃, the hot pressing pressure is 35KN, the pressing time is 15s, the cold pressing temperature is-5 ℃, the cold pressing pressure is 40KN, and the pressing time is 15 s.
The hot pressing temperature of the automobile safety airbag with the coating material on the surface is 65 ℃, the hot pressing pressure is 40KN, the pressing time is 15s, the cold pressing temperature is-5 ℃, the cold pressing pressure is 35KN, and the pressing time is 15 s.
The hot pressing temperature of the automobile safety airbag with the surface made of the mixed type material is 80 ℃, the hot pressing pressure is 35KN, the pressing time is 15s, the cold pressing temperature is-7 ℃, the cold pressing pressure is 40KN, and the pressing time is 15 s.
Example 2
As shown in figure 1, the hot-pressing and cold-pressing forming process for the automobile safety airbag comprises the following steps:
s1, folding the air bag provided with the support ring;
s2, conveying the folded air bag in the S1 to a hot pressing device by a robot, and pressurizing and heating for shaping;
s3, conveying the hot-pressed air bag to a cold pressing device by a robot, and performing heat dissipation, cooling and shaping;
and S4, performing quality inspection on the air bag taken out in the S3, and packaging the product qualified in the quality inspection, namely completing one-time production.
In S2, the hot press device includes a forming mechanism 1 and a heating hood 2, and the heating hood 2 is electrically heated up to 180 ℃.
And conveying the molding mechanism 1 subjected to pressurization and heating setting in the S2 to a cold pressing device 3, wherein the cold pressing device 3 is a cooling fan cover.
Wherein, the materials of the automobile safety air bag to be extruded in the S2 are divided into three types, namely no coating on the surface, coating on the surface and mixed type.
The hot pressing temperature of the automobile safety airbag with the surface made of the coating-free material is 80 ℃, the hot pressing pressure is 30KN, the pressing time is 12s, the cold pressing temperature is-10 ℃, the cold pressing pressure is 30KN, and the pressing time is 10 s.
The hot pressing temperature of the automobile safety airbag with the coating material on the surface is 70 ℃, the hot pressing pressure is 35KN, the pressing time is 12s, the cold pressing temperature is-8 ℃, the cold pressing pressure is 30KN, and the pressing time is 12 s.
The hot pressing temperature of the automobile safety airbag with the surface made of the mixed material is 85 ℃, the hot pressing pressure is 30KN, the pressing time is 12s, the cold pressing temperature is-13 ℃, the cold pressing pressure is 35KN, and the pressing time is 12 s.
Example 3
As shown in figure 1, the hot-pressing and cold-pressing forming process for the automobile safety airbag comprises the following steps:
s1, folding the air bag provided with the support ring;
s2, conveying the folded air bag in the S1 to a hot pressing device by a robot, and pressurizing and heating for shaping;
s3, conveying the hot-pressed air bag to a cold pressing device by a robot, and performing heat dissipation, cooling and shaping;
and S4, performing quality inspection on the air bag taken out in the S3, and packaging the product qualified in the quality inspection, namely completing one-time production.
In S2, the hot press device includes a forming mechanism 1 and a heating hood 2, and the heating hood 2 is electrically heated up to 180 ℃.
And conveying the molding mechanism 1 subjected to pressurization and heating setting in the S2 to a cold pressing device 3, wherein the cold pressing device 3 is a cooling fan cover.
Wherein, the materials of the automobile safety air bag to be extruded in the S2 are divided into three types, namely no coating on the surface, coating on the surface and mixed type.
The hot pressing temperature of the automobile safety airbag with the surface made of the coating-free material is 85 ℃, the hot pressing pressure is 20KN, the pressing time is 8s, the cold pressing temperature is-15 ℃, the cold pressing pressure is 25KN, and the pressing time is 8 s.
The hot pressing temperature of the automobile safety airbag with the coating material on the surface is 75 ℃, the hot pressing pressure is 30KN, the pressing time is 8s, the cold pressing temperature is-10 ℃, the cold pressing pressure is 25KN, and the pressing time is 8 s.
The hot pressing temperature of the automobile safety airbag with the surface made of the mixed type material is 90 ℃, the hot pressing pressure is 25KN, the pressing time is 8s, the cold pressing temperature is-18 ℃, the cold pressing pressure is 30KN, and the pressing time is 8 s.
Comparative example 1
The extrusion temperature of the automobile safety air bag with the surface made of the uncoated material is room temperature, the extrusion pressure is 30KN, and the pressing time is 10 s.
The extrusion temperature of the automobile safety air bag with the surface made of the coating material is room temperature, the extrusion pressure is 40KN, and the pressing time is 10 s.
The extrusion temperature of the automobile safety airbag with the surface made of the mixed material is room temperature, the extrusion pressure is 35KN, and the pressing time is 10 s.
The volume data of the air bags processed in the examples 1 to 3 and the comparative example 1 show that the volume of the air bag formed by the compression molding process of the automobile safety air bags made of different materials by adopting the hot pressing and cold pressing process is smaller than that of the air bag manufactured by the normal pressure process equipment by more than 35%, and the air bag has higher compression molding efficiency and higher production efficiency.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A hot-pressing and cold-pressing molding process for an automobile safety airbag is characterized by comprising the following steps:
s1, folding the air bag provided with the support ring;
s2, conveying the folded air bag in the S1 to a hot pressing device by a robot, and pressurizing and heating for shaping;
s3, conveying the hot-pressed air bag to a cold pressing device by a robot, and performing heat dissipation, cooling and shaping;
and S4, performing quality inspection on the air bag taken out in the S3, and packaging the product qualified in the quality inspection, namely completing one-time production.
2. The hot-pressing and cold-pressing molding process of the automobile airbag according to claim 1, wherein in the step S2, the hot-pressing device comprises a molding mechanism (1) and a heating fan housing (2), and the heating fan housing (2) adopts an electric heating mode, and the maximum temperature of the electric heating can reach 180 ℃.
3. The hot-pressing and cold-pressing molding process of the automobile airbag according to the claim 2, characterized in that the molding mechanism (1) which is pressurized and heated and shaped by S2 is sent to a cold-pressing device (3), and the cold-pressing device (3) is a cooling fan cover.
4. The hot-pressing and cold-pressing molding process for an automobile airbag according to claim 1, wherein the materials of the automobile airbag to be extruded in the step S2 are classified into three types, i.e., a surface without coating, a surface with coating and a mixed type.
5. The hot-pressing and cold-pressing forming process of the automobile airbag according to claim 4, wherein the hot-pressing temperature of the automobile airbag with the surface made of the uncoated material is 75-85 ℃, the hot-pressing pressure is 20-35 KN, the pressing time is 8-15 s, the cold-pressing temperature is-15-5 ℃, the cold-pressing pressure is 25-40 KN, and the pressing time is 8-15 s.
6. The hot-pressing and cold-pressing molding process of the automobile airbag according to claim 4, wherein the hot-pressing temperature of the automobile airbag with the coating on the surface is 65-75 ℃, the hot-pressing pressure is 30-40 KN, the pressing time is 8-15 s, the cold-pressing temperature is-10-5 ℃, the cold-pressing pressure is 25-35 KN, and the pressing time is 8-15 s.
7. The hot-pressing and cold-pressing molding process of the automobile airbag according to claim 4, wherein the hot-pressing temperature of the automobile airbag with the surface made of the mixed type material is 80-90 ℃, the hot-pressing pressure is 25-35 KN, the pressing time is 8-15 s, the cold-pressing temperature is-18-7 ℃, the cold-pressing pressure is 30-40 KN, and the pressing time is 8-15 s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110328899.XA CN113103558A (en) | 2021-03-27 | 2021-03-27 | Hot-pressing and cold-pressing molding process for automobile safety airbag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110328899.XA CN113103558A (en) | 2021-03-27 | 2021-03-27 | Hot-pressing and cold-pressing molding process for automobile safety airbag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113103558A true CN113103558A (en) | 2021-07-13 |
Family
ID=76712418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110328899.XA Pending CN113103558A (en) | 2021-03-27 | 2021-03-27 | Hot-pressing and cold-pressing molding process for automobile safety airbag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113103558A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114523700A (en) * | 2022-03-07 | 2022-05-24 | 广东派奥意智能装备有限公司 | Hot press molding process of safety airbag |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944135A (en) * | 2012-08-18 | 2013-02-27 | 高信光 | Forced ventilation device with additional heat pipe in cooling tower |
| CN203921386U (en) * | 2014-05-30 | 2014-11-05 | 瀚鹏龙（上海）自动化设备有限公司 | Curtain air bag bag folding machine |
| CN106003593A (en) * | 2016-07-22 | 2016-10-12 | 深圳市宝鸿精密模具股份有限公司 | Die of airbag cover |
-
2021
- 2021-03-27 CN CN202110328899.XA patent/CN113103558A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944135A (en) * | 2012-08-18 | 2013-02-27 | 高信光 | Forced ventilation device with additional heat pipe in cooling tower |
| CN203921386U (en) * | 2014-05-30 | 2014-11-05 | 瀚鹏龙（上海）自动化设备有限公司 | Curtain air bag bag folding machine |
| CN106003593A (en) * | 2016-07-22 | 2016-10-12 | 深圳市宝鸿精密模具股份有限公司 | Die of airbag cover |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114523700A (en) * | 2022-03-07 | 2022-05-24 | 广东派奥意智能装备有限公司 | Hot press molding process of safety airbag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2532630B1 (en) | Glass plate and method for manufacturing glass plate | |
| RU2425724C2 (en) | Titanium unit of aircraft and procedure for its fabrication by super-plastic moulding | |
| CN113103558A (en) | Hot-pressing and cold-pressing molding process for automobile safety airbag | |
| EP3332045B1 (en) | Shock heat treatment of aluminum alloy articles | |
| US20080127697A1 (en) | Sheet metal forming process | |
| CN101028750B (en) | Titanium-alloy honeycomb plate production method | |
| CN105855336A (en) | Thermal forming method for aluminum alloy car-body special-shaped variable-section pipe structural members | |
| CN103448183B (en) | A kind of composite coating epidermis forming method | |
| CN110936109A (en) | Large-size titanium alloy skin composite forming method | |
| US7441691B2 (en) | Method for the production of parts by means of diffusion bonding and superplastic forming, and mold for carrying out said method | |
| CN205075427U (en) | A acoustics is effectual prevents heat exchanger that is used for three -dimensional profile of having of motor vehicles | |
| US6009726A (en) | Glass bending process and apparatus | |
| CN112757663A (en) | Automatic filament-laying forming method for continuous fiber reinforced thermoplastic composite material | |
| KR20160113929A (en) | Forming device and its forming method of built skin agent for car using hot melt film | |
| CN114222657A (en) | Pouch film forming apparatus and method of secondary battery | |
| US11285655B2 (en) | Method of manufacturing a plastic tank | |
| JP2003053475A (en) | Method and apparatus for manufacturing parts for shielding electromagnetic waves utilizing hot-working method for magnesium | |
| SU1255343A1 (en) | Method of manufacturing multilayer panels | |
| SU1109293A1 (en) | Process for manufacturing multilayer panels by diffusion welding | |
| EP0638382A1 (en) | Method of manufacturing a rotor made of aluminum powder alloy having a steel shaft | |
| JPH06328479A (en) | Manufacture of insulator dash and molding device | |
| CN102380964A (en) | Preparation method of sealing strip | |
| EP3225323B1 (en) | Hot blow molding method for aluminum alloy sheet | |
| CN108001019A (en) | A kind of car carpeting hot-press molding method | |
| JPH04180504A (en) | Manufacture of high speed tool steel |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210713 |
|
| RJ01 | Rejection of invention patent application after publication |