CN112677459A - Apparatus and method for manufacturing radar wave-transparent cover plate - Google Patents
Apparatus and method for manufacturing radar wave-transparent cover plate Download PDFInfo
- Publication number
- CN112677459A CN112677459A CN202011103204.XA CN202011103204A CN112677459A CN 112677459 A CN112677459 A CN 112677459A CN 202011103204 A CN202011103204 A CN 202011103204A CN 112677459 A CN112677459 A CN 112677459A
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- CN
- China
- Prior art keywords
- mold
- film layer
- cover plate
- radar wave
- manufacturing
- 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.)
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- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/52—Heating or cooling
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- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/007—Tempering units for temperature control of moulds or cores, e.g. comprising heat exchangers, controlled valves, temperature-controlled circuits for fluids
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C2035/0283—Thermal pretreatment of the plastics material
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/56—Compression moulding under special conditions, e.g. vacuum
- B29C2043/561—Compression moulding under special conditions, e.g. vacuum under vacuum conditions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention relates to a manufacturing device and a manufacturing method of a radar electric wave penetration type cover plate, which enable the concave-convex forming the preset design to be easier to form on a main film through the preheating of the main film layer and the heating of a mould.
Description
Technical Field
The present invention relates to a device and a method for manufacturing a radar wave-transmissive cover plate.
Background
A Smart Cruise Control (SCC) is a development form of a Cruise Control system, namely a front vehicle is monitored by a radar sensor, and the Smart Cruise Control has two functions, namely a following running function of running at a specific distance from the front vehicle when a vehicle exists in the front and a preset speed running function of running at a specific speed when no vehicle exists in the front.
Smart Cruise Control systems are also known as Adaptive Cruise Control (ACC).
The intelligent cruise control system is a typical driver assistance/assistance system, and has the effects that an engine control unit and an electronic brake unit are used for automatically accelerating and decelerating a vehicle, so that the comfort level of a driver can be improved, and the risk of collision with the front can be reduced.
The SCC radar, which is the core of this system, is mounted in the center of the front of the vehicle, which is most advantageous for ensuring performance, but such vehicles are generally provided with a radiator guard rail, a emblem or garnish of an automobile manufacturing company, and the like in the center of the front.
Generally, the heat sink guard rail is made of metal or plastic, and is plated with chrome to prevent corrosion caused by the external environment.
However, metal has low radio wave permeability, and therefore adversely affects reception of radio waves by SCC radar.
Therefore, in order to ensure smooth reception of radio waves, attempts have been made to replace a part of the radiator grill with a separate radar cover to ensure penetration of radio waves.
Japanese patent laid-open publication No. 5,560,555 (hereinafter referred to as "related art") relates to a method for manufacturing a vehicle-mounted radio wave transmitting cover sheet, which includes a shaping process for shaping a film into a predetermined uneven shape, a decorative body forming process for forming a decorative body by molding the film into a final outer shape, a transparent resin layer forming process for forming a transparent resin layer by injection molding on a surface of the decorative body, and a base layer forming process for forming a base layer by injection molding on a back surface of the decorative body. The film is characterized in that the film is in a long strip shape, the convex parts of the concave and convex parts are decolorized and printed on the long strip film for multiple times, the concave and convex parts are shaped on the long strip film for multiple times in the shaping process, and the long strip film is divided into the concave and convex parts in the decorating body forming process, so that the final appearance is formed.
In a conventional shaping process for shaping (vacuum forming) a film to form a projection and a recess of a predetermined design, the predetermined design may not be formed on the film actually.
That is, to form the three-dimensional design, the film is placed between dies and then extruded.
According to a predetermined design, there are portions on the film having a high elongation and portions having a low elongation.
Conventionally, a film placed between molds is preheated at around 80 degrees celsius for 30 seconds and then placed between molds heated at around 60 degrees celsius for 10 seconds.
The film placed between the dies has a predetermined design after being pressed and evacuated by the dies.
According to the prior art, the problems of tearing and the like of the film frequently occur during the molding of the portion having high elongation and the portion having low elongation of the film.
[ Prior art documents ]
[ patent document ]
Japanese patent laid-open publication No. 5,560,555
Disclosure of Invention
[ problem ] to solve
The present invention has been made to overcome the above problems, and an object of the present invention is to provide a device and a method for manufacturing a radar wave-transmitting cover plate, which can facilitate molding of a film having a concave-convex shape with a predetermined design.
[ MEANS FOR solving PROBLEMS ] to solve the problems
In order to achieve the above object, the invention of claim 1 relates to a manufacturing apparatus for molding a main film layer of a radar wave-transmitting cover plate, the manufacturing apparatus being characterized by comprising a first mold for forming a convex portion; a second mold movable toward the first mold by a moving means, which forms a recess to be engaged with the first mold; and the temperature of the first mold and the second mold is kept at 75-85 ℃ for 13-17 seconds.
In order to achieve the above object, the device for manufacturing a radar wave transmissive cover according to claim 2 of the present invention is characterized in that the main film layer placed between the first mold and the second mold is preheated at a temperature of 310 ℃ to 330 ℃ for 7 seconds to 13 seconds.
In order to achieve the above object, a method for manufacturing a radar wave-transparent cover plate according to claim 3 of the present invention comprises: preheating the film, namely preheating the prepared main film layer at the temperature of 310-330 ℃ for 7-13 seconds; a mold heating step of holding a first mold for forming a convex portion and a second mold for forming a concave portion engaged with the first mold at 75 to 85 ℃ for 13 to 17 seconds; and moving the second die to the first die, and carrying out vacuum forming after extrusion.
[ Effect of the invention ]
The manufacturing device and the manufacturing method of the radar electric wave penetration type cover plate according to the embodiment of the invention have the following effects:
(1) the primary film layer may be more conveniently formed with a predetermined design.
(2) The defect rate of the primary film layer can be reduced since the predetermined design of the primary film layer is easier to mold.
Drawings
FIG. 1 is a cross-sectional view of a main film layer of a radar wave-transparent cover plate
FIG. 2 is a schematic view of a manufacturing apparatus of a radar wave-transparent cover plate according to the present invention
FIG. 3 is a schematic illustration of preheating of the main film layer of FIG. 1
FIG. 4 is a schematic view of the formation of a primary film layer according to a preferred embodiment of the present invention
FIG. 5 is a flow chart of a method for manufacturing a radar wave-transparent cover plate
Detailed Description
Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to fig. 1 to 5.
Before this, the terms or words used in the present specification and claims should not be construed as limited to conventional or past meanings, but should be construed as meanings and concepts conforming to the technical idea of the present invention, with the concept of terms being appropriately defined from the viewpoint of explaining the inventor's own invention in the best way.
The composition of the thin film layer used for the general radar wave-transmissive cover sheet 1 is as follows:
the main film layer 300 made of PET or PC is explained as a standard.
The rear surface 310 of the main thin film layer is formed with an evaporation layer 360 made of indium or ceramic.
An indium protective layer 380 is sequentially deposited on the evaporated layer 360 to protect the evaporated layer 360.
The upper surface 305 of the main film layer forms a printed layer 320, and the printed protective layer 340 is sequentially layered to protect the printed layer 320.
The main film layer 300 is formed with irregularities and has a desired shape by a molding process.
The radar wave-transmissive cover 1 includes a top cover member 100 and a bottom cover member 200 made of resin.
That is, the main film layer 300 is provided between the top cover member 100 and the bottom cover member 200.
For convenience, the main thin film layer 300 in the following description refers to a thin film formed of a printing layer 320, a printing protective layer 340, an indium evaporation layer 360, and an indium protective layer 380.
Claim 1 of the present invention relates to a manufacturing apparatus for molding a main film layer of a radar wave-transparent cover 1.
First, the manufacturing apparatus is formed including the first mold 10 and the second mold 20.
The first mold 10 is formed with a protrusion 11 to mold the main film layer 300.
The second mold 20 is located at a position opposite to the upper side of the first mold 10.
A concave portion 21 that engages with the convex portion 11 of the first mold 10 is formed on the second mold 20.
The second mold 20 may be moved toward the first mold 10 by moving members 25, and these moving members 25 may be composed of cylinders or the like.
The first mold 10 and the second mold 20 are engaged by the moving member 25.
At this time, a cavity 50 in which the main film layer 300 is placed is formed between the engaged first mold 10 and second mold 20.
The first embodiment of the present invention preferably maintains the first mold 10 and the second mold 20 at a temperature of 75 to 85 degrees celsius for 13 to 17 seconds.
The second die 20 is moved toward the first die 10 by the moving member 25, pressing the main film layer 300 to form a design including predetermined irregularities on the main film layer 300 placed between the upper surface 10a of the first die 10 and the back surface 20a of the second die.
At this time, the temperature of the first mold 10 and the second mold 20 is 75 to 85 degrees celsius, and is maintained for 13 to 17 seconds, so that the design on the main thin film layer 300 is more easily formed.
The second embodiment of the present invention further includes a process of preheating the main film layer 300 placed between the first mold 10 and the second mold 20 at 310 to 330 degrees celsius for 7 to 13 seconds.
The primary film layer 300 preheated for the aforementioned temperature and time is placed between the first mold 10 and the second mold 20, and then the second mold 20 is moved to the first mold 10 to extrude the primary film layer 300 for molding.
The method of manufacturing the radar wave-transmitting cover plate of the present invention is as follows.
(1) The main thin film layer 300 is preheated at a temperature of 310-330 ℃ for 7-13 seconds.
This is referred to as a film preheating step S1.
(2) The first mold 10 for forming the convex portion 11 and the second mold 20 for forming the concave portion 21 are heated and held at a temperature of 75 to 85 degrees centigrade for 13 to 17 seconds.
This is referred to as a mold heating step S2.
(3) The second mold 20 is moved toward the first mold 10, and the main film layer 300 is extruded and vacuum-formed.
This is referred to as an extrusion vacuum forming step S3.
According to the method for manufacturing the radar wave penetration type cover plate, when the main film layer 300 is extruded and vacuum-formed, the elongation of the main film layer 300 can be improved overall.
It is also possible to prevent tearing or even damage between the portion 300a having a relatively high elongation and the portion 300b having a relatively low elongation on the main film layer 300 during the extrusion and vacuum molding processes.
[ INDUSTRIAL APPLICABILITY ]
The apparatus and method for manufacturing the radar wave penetration type cover plate not only can make the main film more conveniently formed in the mold, but also can prevent the film from being damaged or torn when the design with different elongation percentage (elongation percentage) is formed on the main film layer.
[ notation ] to show
1 radar wave penetration type cover plate 10 No. 1 die
10a back surface 11 of the 1 st mold and a convex portion of the 1 st mold
20: 2 nd mold 20a: back of 2 nd mold
21 recess 25 of 2 nd die moving member
50: chamber 100: cover member
200 bottom cover member 300 main film layer
305 upper surface of main thin film layer 310 backside of main thin film layer
320 printing layer 340 printing protective layer
360 indium vapor deposition layer 380 indium protective layer
Claims (3)
1. A radar wave transmission type cover plate manufacturing device is characterized in that:
a manufacturing apparatus for molding a main film layer of a radar wave transmissive cover plate, the manufacturing apparatus including a first mold for forming a convex portion;
the second mold movable toward the first mold by a moving means, which forms a concave portion to be engaged with the first mold, the temperature of the first mold and the second mold being maintained at 75 to 85 degrees celsius for 13 to 17 seconds.
2. The apparatus of claim 1, wherein the main film layer placed between the first mold and the second mold is preheated at a temperature of 310 to 330 ℃ for 7 to 13 seconds.
3. A method for manufacturing a radar wave-transmitting cover plate, comprising:
preheating the film, namely preheating the prepared main film layer at the temperature of 310-330 ℃ for 7-13 seconds;
a mold heating step of holding a first mold for forming a convex portion and a second mold for forming a concave portion engaged with the first mold at 75 to 85 ℃ for 13 to 17 seconds;
and moving the second die to the first die, extruding the main film layer and then carrying out vacuum forming.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2019-0129303 | 2019-10-17 | ||
| KR1020190129303A KR20210045820A (en) | 2019-10-17 | 2019-10-17 | Radio Wave Penetration Cover Manufacturing Device And Manufacturing Method Thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112677459A true CN112677459A (en) | 2021-04-20 |
Family
ID=75445699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011103204.XA Pending CN112677459A (en) | 2019-10-17 | 2020-10-15 | Apparatus and method for manufacturing radar wave-transparent cover plate |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20210045820A (en) |
| CN (1) | CN112677459A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010030215A (en) * | 2008-07-30 | 2010-02-12 | Toyoda Gosei Co Ltd | Decorative member and its manufacturing method |
| CN109715363A (en) * | 2016-09-29 | 2019-05-03 | 马自达汽车株式会社 | The insert molding method and its device of thin-film material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5560555B2 (en) | 2008-11-06 | 2014-07-30 | トヨタ自動車株式会社 | Manufacturing method of radio wave transmission cover for vehicle |
-
2019
- 2019-10-17 KR KR1020190129303A patent/KR20210045820A/en not_active Application Discontinuation
-
2020
- 2020-10-15 CN CN202011103204.XA patent/CN112677459A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010030215A (en) * | 2008-07-30 | 2010-02-12 | Toyoda Gosei Co Ltd | Decorative member and its manufacturing method |
| CN109715363A (en) * | 2016-09-29 | 2019-05-03 | 马自达汽车株式会社 | The insert molding method and its device of thin-film material |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20210045820A (en) | 2021-04-27 |
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| 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 |
Application publication date: 20210420 |
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| WD01 | Invention patent application deemed withdrawn after publication |