CN112677403A

CN112677403A - Apparatus and method for manufacturing radar wave-transparent cover plate

Info

Publication number: CN112677403A
Application number: CN202011102530.9A
Authority: CN
Inventors: 李时旭; 金浩中
Original assignee: Ruiyan Physical And Chemical Co ltd
Current assignee: Ruiyan Physical And Chemical Co ltd; Seoyon E Hwa Co Ltd
Priority date: 2019-10-17
Filing date: 2020-10-15
Publication date: 2021-04-20
Also published as: KR20210045817A

Abstract

The present invention relates to a radar wave-permeable cover plate manufacturing apparatus and a manufacturing method thereof, and more particularly, to a radar wave-permeable cover plate manufacturing apparatus and a manufacturing method thereof, which can accurately mount and fix a film in an injection mold composed of a first mold and a second mold.

Description

Apparatus and method for manufacturing radar wave-transparent cover plate

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 coated 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 the 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 a plurality of times, the concave and convex parts are shaped on the long strip film for a plurality of 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 at the same time.

[ 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 radar wave transmissive cover plate manufacturing apparatus and a manufacturing method thereof, which can fixedly mount a formed film at an accurate position in an injection mold.

[ MEANS FOR solving PROBLEMS ] to solve the problems

In order to achieve the above object, the invention of claim 1 is characterized by comprising a first mold connected to a concavo-convex shaped main film layer; and a second mold forming a receiving space for receiving the main film layer together with the first mold, wherein the first mold is formed with a concave portion for fixedly mounting the main film layer in a concave-convex manner, and the edge of the concave portion includes a groove formed along a design boundary of the printing layer formed on the main film layer.

In order to achieve the above object, claim 2 of the present invention includes: (a) the method comprises the following steps: forming the main film layer with the printing layer on the upper surface in a concave-convex mode; (b) the method comprises the following steps: placing the main film layer in an injection mold consisting of a first mold and a second mold; (c) the method comprises the following steps: and (b) fixedly attaching the projections and depressions of the main film layer to the recesses formed in the upper surface of the first mold, and inserting the design boundary of the printed layer formed on the main film layer into the grooves formed along the edges of the recesses of the first mold.

[ Effect of the invention ]

The apparatus and method for manufacturing a radar wave-transmissive cover according to an embodiment of the present invention have the following effects.

(1) The fixing film can be accurately installed in the injection mold and can be fixed at an accurate position.

(2) The resin injected at high temperature, high pressure and high speed in the mold may cause the position boundary of the printing layer to be distorted, and the present invention may prevent the position boundary from being distorted.

Drawings

FIG. 1 is a schematic sectional view of a manufacturing apparatus of a radar wave penetration type cover plate according to the prior art

FIG. 2 is an enlarged cross-sectional view of a portion of FIG. 1

FIG. 3 is a cross-sectional view of a device for manufacturing a radar wave-transmitting cover plate according to the present invention

FIG. 4 is an enlarged cross-sectional view of a portion of FIG. 3

FIG. 5 is a flowchart of a method for manufacturing a radar wave-transparent cover plate according to the present invention

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 being limited to the 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 plate 1 is as follows:

the main film layer 300 made of PET or PC is explained as a standard.

An evaporated layer 360 composed of indium or ceramic is formed on the back surface 310 of the main thin film layer.

The indium protective layer 380 is sequentially layered on the evaporation layer 360 to protect the evaporation layer 360.

A printing layer is formed on the upper surface of the main film layer, and the printing protective layers are sequentially stacked in layers to protect the printing layer.

The radar wave transmissive cover includes a top cover member 100 and a bottom cover member 200 made of resin.

Between the top cover member 100 and the bottom cover member 200 is a primary film layer 300.

Generally, a printing layer 320 is formed on the upper surface 305 of the main film layer, and a printing protective layer 340 covering the printing layer 320 is sequentially layered.

Further, an indium vapor deposition layer 360 is formed on the back surface 310 of the main thin film layer, and an indium protective layer 380 covering the indium vapor deposition layer 360 is sequentially layered.

More specifically, injection molding of the top cover member 100 and the bottom cover member 200 is formed on the upper surface 305 and the back surface 310 of the main film layer, respectively.

The main film layer 300 is formed in a concave-convex manner.

Vacuum forming may be added after heating the primary film layer 300 to a suitable temperature, including concave and convex embossing.

The main film layer 300 formed in a concave-convex shape is placed in the main film layer accommodating space 30 formed by the first mold 10 and the second mold 20.

Generally, the primary film layer 300 is first mounted and secured to the first mold 10.

In this first mold 10, a concave portion 13 to which the concave-convex portion 301 of the main thin film layer 300 is attached is formed.

A recess 13 is formed in the upper surface 11 of the first mold.

At this time, in the first embodiment of the present invention, the concave groove 17 formed along the design dividing line 330 of the printed layer 320 formed on the main film layer 300 is formed at the edge 15 of the concave portion 13 formed in the first mold 10.

The groove 17 is formed by cutting down a part of the edge 15 of the upper surface recess 13 of the first die 10.

The groove 17 is preferably formed in a range of about 0.5 to 1R.

The design boundary 330 of the printed layer 320 formed on the main film layer 300 is inserted into the groove 17 formed by cutting down a portion of the edge 15 of the concave portion 13 of the upper surface of the first mold 10, and is fixedly mounted.

According to the first embodiment of the present invention, the main film layer 300 may be stably mounted on the first mold 10.

In order to more firmly mount the main film layer 300 on the first mold 10, a vacuum line (not shown) may be additionally formed on the first mold 10.

In this case, the design dividing line 330 of the printed layer 320 formed on the main film layer 300 is inserted in the groove 17 formed by cutting down a portion of the edge 15 of the upper surface recess 13 of the first mold 10, and the main film layer 300 can be more closely bonded to the upper surface 11 of the first mold by vacuum.

Thus, the main film layer 300 is stably and accurately mounted in the first mold 10, and even if the resin is injected at high pressure and high speed, the main film layer 300 is prevented from being deviated from the first mold 10 or from being positionally deviated.

The method of manufacturing the radar wave-transmitting cover plate of the present invention is as follows.

First, the step (a) is a step of embossing the main film layer 300 on which the printed layer 320 is formed on the upper surface 305.

The main film layer 300 that is concavo-convex molded through the (a) step is placed in the main film layer receiving space 30 formed in the injection mold composed of the first mold 10 and the second mold 20, which is referred to as the (b) step.

The upper surface 305 and the back surface 310 of the main film layer 300 positioned in the injection mold composed of the first mold 10 and the second mold 20 form resin layers, respectively, which is referred to as a (c) step.

(b) The steps are specifically described below.

The irregularities 301 formed on the main thin film layer 300 are fixed to the upper surface recess 13 of the first mold.

At this time, the design boundary line 330 of the printed layer 320 formed on the main film layer 300 is inserted into the groove 17 of the edge of the concave portion of the upper surface of the first mold.

According to the present invention, the design boundary line 330 of the printed layer 320 formed on the main film layer 300 is inserted and mounted in the groove 17 formed at a portion of the edge 15 of the upper surface recess 13 which is cut down the first mold, so that the main film 300 is more stably mounted to the first mold 10.

[ INDUSTRIAL APPLICABILITY ]

The apparatus and method for manufacturing a radar wave penetration type cover plate can not only accurately fix a thin film in an injection mold, but also prevent a position boundary of a printed layer from being distorted due to a resin injected into the mold at a high temperature, a high pressure, and a high speed.

[ description of symbols ]

1 radar wave transmissive cover plate 10 first mold

11 upper surface of first mold 13 upper surface of first mold concave part

15 edge of concave portion of upper surface of first mold

17 upper surface concave edge groove of first die

20: second mold 30: main film layer accommodating space

100 top cover member 200 bottom cover member

300 main thin film layer 301 main thin film layer irregularities

305 upper surface of main thin film layer 310 backside of main thin film layer

320 printing layer

330 design boundary line 340 of printing layer, printing protective layer

360 indium vapor deposited layer 380 indium protective layer

Claims

1. A radar wave transmission type cover plate manufacturing apparatus, comprising:

a first mold in contact with the concave-convex shaped main film layer; and

a second mold for forming a receiving space for receiving the main film layer together with the first mold,

and a concave portion fixedly installed in a concave and convex of the main film layer is formed on the first mold, and an edge of the concave portion includes a groove formed along a design boundary of a printed layer formed on the main film layer.

2. A method for manufacturing a radar wave-transmitting cover plate, comprising:

(a) the method comprises the following steps: concave-convex forming on the main film layer with printing layer on the upper surface

(b) The method comprises the following steps: positioning the primary film layer in an injection mold comprising a first mold and a second mold

(c) The method comprises the following steps: resin layers are formed on the upper surface and the back surface of the main film layer,

and (b) fixing the unevenness of the main film layer to a recess formed on the upper surface of the first mold, and inserting the design boundary of the printed layer formed on the main film layer into a groove formed along the edge of the recess of the first mold.