KR101651085B1 - Thermoplastics light reflector and a method for manufacturing the forming mold Division - Google Patents

Abstract

The present invention relates to a thermo-plastic lighting reflector which is vacuum-formed so that it can be mass-produced at a competitive production rate with little distortion or distortion of the product, The present invention relates to a thermo-plastic lighting reflector, a method of manufacturing the same, and a molding mold structure. In the molding of a reflector having a plurality of cavities by a material made of a thermoplastic plastic film or sheet, A material supplying step of supplying a material made of a plastic film or a sheet; A preheating step of preheating a material made of the thermoplastic plastic film or sheet supplied in the material supplying step; The material heated in the preheating step is introduced into a mold between a molding die constituted by a plurality of cavity ports to form a set of cavities and a press mold in which a cavity forming protrusion cooperating with a cavity port of the molding die is formed, A preparation step; A mold having a plurality of cavities formed therein, each cavity having a suction hole; A press mold having cavity forming protrusions formed therein so as to form a mold together with a plurality of cavities formed in the forming mold; And a pressure transmitting means for selectively supplying a vacuum pressure and an evacuation pressure to the suction holes of the molding die. The thermoplastic plastic film or the sheet made of a thermoplastic plastic film which enters between the molding die and the press die in the molding preparation process, A variety of press molds made of heated materials A drawing forming step of forming the cavity forming protrusion by friction deformation drawing into a cavity pot of a molding die which is pressed and joined with the mold; In the drawing-forming process, the press mold and the forming mold are combined so that the primary cavity forming protrusion presses the material and frictionally deforms the drawing, and the vacuum pressure generated in the vacuum pump is applied to the damper a shape fixing step of uniformly distributing the molds in the cavity and acting through the suction holes formed in the respective cavity ports to fix the cavity shape of the thermoplastic plastic illumination reflector by closely contacting the cavity with the inner wall of the cavity of the molding die; A water-cooling step of spraying room-temperature water to a mold having a shape fixed to each cavity of the molding die by the vacuum pressure in the shape fixing step; Cooling process in which water is sprayed in a state in which the shape of the mold is closely adhered to the inner wall of the cavity port by the vacuum pressure in the water-cooling step to spray air to the water-cooled molding to remove water and air- In the shape fixation step, the mold cavity is fixed to the inside of the cavity port in the shape to be molded, and the thermoplastic plastic light reflector molded article, which has been completed through the water cooling process and the air cooling process, A separating step of separating the molded thermoplastic plastic light reflector molding from the molding mold by switching the mold; A process of removing scrap by dividing or processing the molded thermoplastic plastic reflector molded article having a plurality of cavities formed in the molding mold into a size suitable for use is carried out so that the depth of the opening of 0.3 mm to 0.8 times And a plurality of cavities are arranged in a row and repeatedly arranged in a longitudinal direction at an interval of 0.08 to 0.25 times the width of the entrance to form a set of thermoplastic plastic light reflectors.

Description

TECHNICAL FIELD [0001] The present invention relates to a thermoplastic plastic light reflector, a thermoplastic plastic light reflector,

The present invention relates to a thermo-plastic lighting reflector, a method for manufacturing the same, and a molding mold structure. More particularly, the present invention relates to a thermo-plastic lighting reflector, Plastic lighting reflector which is vacuum-formed so as to be able to mass-produce large quantities of a product, and secures uniformity of the product while having a beautiful appearance, a manufacturing method thereof, and a molding mold structure.

Due to the development of the industrial field, optical technologies and products have become more and more technologically advanced, and demand for high-performance, high-precision optical materials and designs has increased, and these optical-related material technologies and products are used as light And thus the application range for effective reflection of light has been enlarged and research on reflector molding methods has been carried out to meet the needs of the market. Therefore, The patent literature of the technology will be described as follows.

Patent Application No. 10-2004-0101896 (2004.12.06) relates to a vacuum mold structure for improving vacuum efficiency, in which an outer surface of a body through which a plurality of air holes pass through forms a molded surface of a product, A vacuum mold in which a forming mold having an inner space formed as an empty space is connected to a vacuum apparatus to closely form a heat-softened sheet-like product on the outer surface of the forming mold, wherein the inner space forming the vacuum mold And a filling material spaced apart from the inner surface of the mold at regular intervals is inserted and installed. The present invention relates to a method of manufacturing a vacuum molded article, which comprises a step of forming a first molded body by vacuum forming a sheet, a step of forming a first molded body by communicating with the air intake hole of the vacuum forming die, And a step of vacuum forming another sheet by arranging the first formed body on a forming surface of a vacuum forming die to form a second formed body with the first formed body attached, And a method for producing a molded article. The patent application No. 10-2010-0003576 (Jan. 14, 2010) relates to a vacuum molding apparatus and a vacuum molding method for vacuum-forming a film, in which a pattern deformation of a film occurs even in a deeper shape depending on the three- Dimensional shape film vacuum forming apparatus and a vacuum forming method thereof. Patent Application No. 10-2011-0015036 (Feb. 21, 2011) discloses a method of manufacturing a reflector for illumination, comprising: a sheet preparing step of preparing a sheet made of an extruded crystalline plastic material having a predetermined thickness; A fixing portion for fixing the edge of the sheet by a clamp having an internal space and fixing the sheet by a clamp, a contact portion for contacting the lower surface of the punch, and a fixing portion for fixing the edge of the sheet, A fixing step of fixing the sheet so as to be made of an elongating part; Heating the sheet at a temperature of 40 캜 to 70 캜; And the punch having a lower surface area smaller than the inner space of the clamp, the sheet is pressed and stretched, the length of the stretched portion before stretching is G and the stretched length of the stretching portion is G ' And a press stretching step of stretching the sheet so as to satisfy the condition of 4G < = G < = 6G. Patent Application No. 10-2014-7002254 (Jun. 27, 2012) relates to a structure integrated by vacuum pressure forming or vacuum forming and a method of manufacturing the same, wherein the structure comprises a polymer having propylene units of 25 mass% to 100 mass% A decorative sheet containing a surface layer containing an adhesive layer containing the propylene-based polymer, and a polymer containing 25 mass% to 100 mass% of a propylene unit.

However, the prior art described in the above-mentioned patent documents is limited to a product for molding a single shape, and when a complicated thermoplastic plastic lighting reflector having a plurality of cavities is molded, each cavity has a thickness And dimensions, and the like, and thus there is a limit to the uniformity.

In order to solve the above problems, the present invention provides a clamp for holding a material supplied to a molding die for molding a thermoplastic plastic illumination reflector and an air hole for generating vacuum pressure in the molding die, By controlling the damper space communicating with the mold, it is possible to produce thermoplastics plastic illuminator with uniform thickness and dimension between the cavities of the product by pressing the mold while generating vacuum pressure in the mold. The purpose of this

According to an aspect of the present invention, which is developed to attain the above object, there is provided a method of manufacturing a reflector having a plurality of cavities by a thermoplastic plastic film or sheet, A process; A preheating step of preheating a material made of the thermoplastic plastic film or sheet supplied in the material supplying step; In the preheating step, A molding preparation step of bringing the mold into a space between a molding die constituted to form a pair of cavity pots and a press mold in which cavity forming protrusions for molding are formed in a cavity port of the molding die to closely contact the molding die to prepare for molding; A mold having a plurality of cavities formed therein, each cavity having a suction hole; A press mold having cavity forming protrusions formed by molding with a plurality of cavities formed in the forming mold; And a pressure transmitting means for selectively supplying a vacuum pressure and an evacuation pressure to the suction holes of the molding die. The thermoplastic plastic film or the sheet made of a thermoplastic plastic film which enters between the molding die and the press die in the molding preparation process, A variety of press molds made of heated materials A drawing forming step of forming the cavity forming protrusion by friction deformation drawing into a cavity pot of a molding die which is pressed and joined with the mold; In the drawing-forming process, the press mold and the forming mold are combined so that the primary cavity forming protrusion presses the material and frictionally deforms the drawing, and the vacuum pressure generated in the vacuum pump is applied to the damper a shape fixing step of uniformly distributing the molds in the cavity and acting through the suction holes formed in the respective cavity ports to fix the cavity shape of the thermoplastic plastic illumination reflector by closely contacting the cavity with the inner wall of the cavity of the molding die; A water-cooling step of spraying room-temperature water to a mold having a shape fixed to each cavity of the molding die by the vacuum pressure in the shape fixing step; Cooling process in which water is sprayed in a state in which the shape of the mold is closely adhered to the inner wall of the cavity port by the vacuum pressure in the water-cooling step to spray air to the water-cooled molding to remove water and air- In the shape fixation step, the mold cavity is fixed to the inside of the cavity port in the shape to be molded, and the thermoplastic plastic light reflector molded article, which has been completed through the water cooling process and the air cooling process, A separating step of separating the molded thermoplastic plastic light reflector molding from the molding mold by switching the mold; A process of removing scrap by dividing or processing the molded thermoplastic plastic reflector molded article having a plurality of cavities formed in the molding mold into a size suitable for use is carried out so that the depth of the opening of 0.3 mm to 0.8 times And a plurality of cavities are arranged in a row repeatedly in the vertical and horizontal directions at intervals of 0.08 to 0.25 times the width of the openings to form a set of thermoplastic plastic illuminant reflectors.

According to the thermoplastic plastic lighting reflector of the present invention, the method of manufacturing the same, and the molding mold structure, the thermoplastic plastic lighting reflector is formed by using the vacuum molding method, so that products of various shapes and thickness can be easily and easily mass- It is possible to expect an effect that the reflection effect is excellent while the product is beautiful.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a process flow diagram for implementing the present invention;
2 is a system example for implementing the present invention;
Fig. 3 is a view showing an example of a molding mold configuration state for carrying out the present invention; Fig.
Fig. 4 is a diagram illustrating an example of a press mold configuration state for practicing the present invention. Fig.
5 is a diagram illustrating an example of the configuration of a vacuum pressure generator of the present invention.
6 is a diagram showing an example of the constitutional state of a thermoplastic plastic illuminator formed by the present invention;

The present invention will be described in detail with reference to a case where a thermoplastic plastic film or a sheet material 110 is formed into a reflector having a plurality of cavities 101, 110); A preheating step of preheating the material 110 made of the thermoplastic plastic film or sheet supplied in the material supplying step; The material (110) heated in the preheating process may be varied The molding die 10 having the cavity port 11 formed therein and the press mold 20 having the cavity forming protrusion 21 fitted to the cavity port 11 of the molding die 10 are formed, (10) to prepare for molding; A variety of cavity forming protrusions 21 formed in the press mold 20 are pressed by a heated material 110 which is a thermoplastic plastic film or sheet prepared to enter between the forming mold 10 and the press mold 20 in the molding preparation step A drawing forming step of performing friction deformation molding into the cavity port (11) of the molding die (10) which forms the mold (10); In the drawing forming process, the press mold 20 and the forming mold 11 are mated with each other so that the primary cavity forming protrusions 21 press the material 110 to perform friction deformation drawing to form the peripheral edge of each cavity port 11, Vacuum pressure generated in the vacuum pump 30 is uniformly distributed in the damper 15 and acted through the suction holes 12 formed in the respective cavity ports 11 in a state in which the mold member 20 is pressed and fixed, A shape fixing step of adhering the shape of the cavity 101 of the thermoplastic plastic lighting reflector molding 100 by closely contacting the inner surface of the cavity 10 of the molding die 10 with the inner wall of the cavity port 11; A water-cooling step of spraying room-temperature water to the molded product (100) in which the shape of the molding die (10) is tightly adhered to the cavity port (11) In the water-cooling step, air is sprayed to the water-cooled molded product 100 by spraying water in a state in which the forming mold 10 is tightly adhered to the inner wall of the cavity port 11 by vacuum pressure to fix the shape, An air cooling process; In the shape fixing process, the molding mold 10 is fixed in the cavity port 11 in a shape to be molded, and the thermoplastic plastic light reflector molding 100 having the cavity 101 is subjected to a water-cooling process and an air- A separating step of separating the thermoplastic plastic light reflector molded product 100 molded in the molding die 10 from the molding die 10 by switching the vacuum pressure acting on the damper 15 of the mold 11 to the exhaust pressure; A process of dividing or shaping a molded thermoplastic plastic reflector 100 having a plurality of cavities 101 formed in the molding die 10 into a proper size for use and removing the scraps, A manufacturing method is performed.

Here, the material 110 made of a thermoplastic plastic film or sheet wound in a roll state used in the material supplying step may be made of any one of polyolefin type or polyester type, titanium dioxide (TiO ₂ ), calcium carbonate ₃ ) and barium sulfate (BaSO ₄ ), and one of halogen-based, phosphorus-based, antimony trioxide which is a flame retardant and has a thickness of at least 3 mm.

At this time, the thickness of the material is preferably 3 mm or less, but it will not be largely restrained since it will be variable depending on the use of the molding.

In the material preheating process, the material 110 is preheated by preheating at least 10 seconds or more through the hot chamber 50 at 240 to 340 ° C.

The IR chamber is used for the hot chamber, and the most ideal condition is to heat for 1 minute at a temperature of 250 ° C, or for a short time at a temperature not exceeding 340 ° C in consideration of productivity.

The vacuum pressure acting on the suction holes 12 formed in the respective cavity ports 11 through the dampers 15 of the molding die 10 in the shape fixing step is set to -0.5 atm to -2 atm.

In order to perform the water cooling process and the air cooling process, a spray nozzle 51 for showering water and an air gun 52 for spraying air are provided in the molded thermoplastic plastic reflector 100 formed in the molding die 10 In this case, the water used at this time will suffice for a system that dispenses ordinary water at room temperature. Since Air will use the air of the pipe supplied to the compressor from the production factory, it will not affect the scope of right. Are omitted.

The thermoplastic plastic lighting reflector molding mold 10 for molding the material 110 made of a thermoplastic plastic film or sheet into a reflector having a plurality of cavities 101 for performing the drawing forming process and the shape fixing process is constructed A molding die 10 in which a plurality of cavity ports 11 are formed and air holes 12 are formed in the respective cavity ports 11; A press mold 20 in which cavity forming protrusions 21 are formed to mold together with a plurality of cavity ports 11 formed in the forming mold 10; Pressure transmission means is constituted to selectively supply the vacuum pressure and the evacuation pressure to the suction holes 12 formed in the respective cavity ports 11 of the molding die 10.

The molding die 10 having the suction holes 12 formed in the plurality of cavity ports 11 is provided with a damper 15 communicating with the suction holes 12 formed in the plurality of cavity ports 11 It is more effective to constitute it integrally and connect it with the pressure transmission means.

The press mold 20 constituting a set of cavities for forming the cavity forming protrusions 21 on the plurality of cavity ports 11 formed on the forming mold 10 is connected to the cavity port 11 of the molding die 10 At least three vent holes 22 are formed in the respective cavity forming projections 21 so as to be spaced apart from the suction holes 12 formed in the cavity port 11 to form the cavities 101 of the molded product 100 More stable. The damper 15 communicating with the suction holes 12 formed in the plurality of cavity ports 11 is formed so that the volume forming the space of the damper 15 is larger than the volume of the plurality of cavity ports 11 of the molding die 10 It is most stable to make the volume of the molding space formed to be equal to one half.

It is stable that the number of the suction holes 12 formed in each cavity port 11 of the molding die 10 is 6 to 12.

The pressure transmitting means is constituted to connect the suction side 31 and the discharge side 32 of the vacuum pump 30 and select the suction pressure and the discharge pressure by the operation of the switching valve 35, And the operation of the vacuum pump 30 is controlled by the pressure sensor 37 so that the internal pressure of the damper 15 maintains the set pressure.

The cavity port 11 formed in the molding die 10 has a plurality of cavity ports 11 having a depth of 0.3 to 0.8 times the width of the inlet in the widthwise direction of the cavity 10 at intervals of 0.08 to 0.25 times the width of the inlet. As shown in FIG.

The cavity port 11 formed in the molding die 10 has a length of 100 to 200 mm, a depth of 70 to 180 mm, and a length of one side of the bottom surface of the cavity port 11, The cavity ports 11 having a length of at least 25 mm and a depth of at most 20 mm may be formed by arranging three to six cavitation ports 11 each having an interval of at least 30 mm, The cavity may have a length of at least 20 mm at one side of the bottom surface and at least 2 mm or more in the longitudinal and longitudinal direction. In the case where the shape of the cavity port 11 formed in the molding die 10 is hemispherical, The upper end of the cavity may have a diameter of 100 mm to 200 mm and a depth of 70 mm to 180 mm may be formed by arranging 3 to 6 cavities with an interval of at least 30 mm, Less than 20mm When even by 2mm or more intervals to be capable of configuring the Zorro one arranged in the vertical and horizontal continuous outside the above category would be the condition is varied according to its intended use is causing disruptions in the production by the percentage of defective increases.

A thermoplastic plastic material 110 having a thickness of at least 3 mm by using a thermoplastic plastic lighting reflector molding mold satisfying the above-described conditions; Material preheating process; A molding preparation process; A drawing forming process; A shape fixing step; A water cooling step; A cooling process; A separation process; A plurality of cavities 101 having a width of 0.3 to 0.8 times the width of the entrance are repeatedly arranged in the vertical direction at intervals of 0.08 to 0.25 times the width of the entrance to form a thermoplastic plastic light reflector It completes.

In this case, when the shape of the cavity 101 is rectangular, the cavity 101 having a length of 100 to 200 mm, a depth of 70 to 180 mm, and a length of 30 to 60 mm on one side of the bottom surface, Or a length of not less than 25 mm and a depth of not more than 20 mm and a length of not less than 20 mm on one side of the bottom surface of the cavity 101, When the shape of the cavity 101 is hemispherical, cavities having a diameter of 100 to 200 mm and a depth of 70 to 180 mm are arranged at an interval of at least 30 mm, Or a thermoplastic plastic light reflector in which a pair of upper and lower troughs of the cavity 101 are arranged at an interval of not less than 25 mm and not more than 20 mm at intervals of not less than 2 mm, .

Hereinafter, an embodiment of the present invention will be described.

The following examples are intended to further illustrate the present invention, and the scope of the present invention is not limited by the following examples. The following examples can be suitably modified and changed by those skilled in the art.

The size of each cavity port 11 of the mold 10 to be vacuum molded is 12 cm in width and 8 cm in depth and the number of cavity ports 11 is 4 in the width and 4 in total, To form a set.

≪ Example 1 >

By preheating the material 110, A molding die 10 in which a cavity port 11 is formed as a set and a press mold 20 in which a cavity forming protrusion 21 to be fitted to the cavity port 11 of the molding die 10 are formed, Assuming that the upper end length of the cavity 11 is a, the spacing between the cavity ports 11 is 0.2a, 0.3a, 0.4a, 0.5a, 1a, 1.5a, 2a, The polyolefin sheet having a thickness of 3 mm was heated with an IR heater at 250 캜 for 3 minutes and then molded under a vacuum condition of -101 kpa (-1.00 atm) for 10 seconds, followed by water cooling for 10 seconds and air cooling for 15 seconds to obtain a molded article .

The number of good products per cavity 101 of the product molded in the above embodiment is as shown in the following graph.

≪ Example 2 >

The volume of the space constituting each cavity port 11 of the molding die 10 is represented by b (b), and the volume of the space constituting each cavity port 11 of the molding die 10 is represented by b , The volume of the damper 15 space was set to 0.1 b, 0.3 b, 0.4 b, 0.5 b, 0.8 b, 1.0 b, and 1.2 b, and a polyolefin thermoplastic plastic sheet Was heated at 250 占 폚 for 3 minutes and molded under a vacuum condition of -101 kpa (-1.00 atm) for 10 seconds. In this state, water was cooled for 10 seconds and air-cooled for 15 seconds to obtain a molded article.

The number of good products per cavity 101 of the product molded in the above embodiment is as shown in the following graph.

≪ Example 3 >

The thermoplastic plastic molding according to the number of the suction holes 12 formed in the cavity ports 11 of the molding die 10 is such that the interval between the cavity ports 11 of the molding die 10 is 0.5a, The number of the suction holes 12 was 2, 4, 6, 8, 10, and 12 in the condition that the volume of the space of the damper 15 was 0.8 b, Was heated at 250 占 폚 for 3 minutes and molded under a vacuum condition of -101 kpa (-1.00 atm) for 10 seconds. In this state, water was cooled for 10 seconds and air-cooled for 15 seconds to obtain a molded article.

The number of good products per cavity 101 of the product molded in the above embodiment is as shown in the following graph.

The present invention is not only implemented as a reflector of an LED lamp that is currently being developed and used, but also can be used immediately on a TV screen or a monitor.

10: Molding mold 11: Cavity port 12: Suction hole
15: damper 20: press mold 21: cavity forming projection
22: vent hole 30: vacuum pump 31: suction side
32: Discharge side 35: Switching valve 36: Pneumatic line
37: pressure sensing sensor 50: hot chamber 51: injection nozzle
52: air gun 100: molded article 101: cavity
110: Material

Claims (19)

In molding a reflector having a plurality of cavities 101 with a material 110 made of a thermoplastic plastic film or sheet,
A material supplying step of supplying a material 110 made of a thermoplastic plastic film or sheet wound in a roll state;
A preheating step of preheating the material 110 made of the thermoplastic plastic film or sheet supplied in the material supplying step;
The material 110 heated in the preheating process is injected into the mold cavity 10 by the cavity forming port 10 and the cavity forming protrusion 21 formed in the cavity port 11 of the forming mold 10, A molding preparation step of advancing into a space between the press dies 20 in which the molds 20 are formed and coming into close contact with the molding die 10 to prepare for molding;
The cavity forming protrusion 21 formed in the press die 20 is pressed by a heated material 110 which is a thermoplastic plastic film or a sheet prepared to enter between the forming die 10 and the press die 20 in the above- A drawing forming step of forming the inside of the cavity pot (11) of the forming mold (10) to be frictionally deformed by drawing;
In the drawing forming process, the press mold 20 and the forming mold 11 are mated with each other so that the primary cavity forming protrusions 21 press the material 110 to perform friction deformation drawing to form the peripheral edge of each cavity port 11, Vacuum pressure generated in the vacuum pump 30 is uniformly distributed in the damper 15 and acted through the suction holes 12 formed in the respective cavity ports 11 in a state in which the mold member 20 is pressed and fixed, A shape fixing step of adhering the shape of the cavity 101 of the thermoplastic plastic lighting reflector molding 100 by closely contacting the inner surface of the cavity 10 of the molding die 10 with the inner wall of the cavity port 11;
A water-cooling step of spraying room-temperature water to the molded product (100) in which the shape of the molding die (10) is tightly adhered to the cavity port (11)
In the water-cooling step, air is sprayed to the water-cooled molded product 100 by spraying water in a state in which the forming mold 10 is tightly adhered to the inner wall of the cavity port 11 by vacuum pressure to fix the shape, An air cooling process;
In the shape fixing process, the molding mold 10 is fixed in the cavity port 11 in a shape to be molded, and the thermoplastic plastic light reflector molding 100 having the cavity 101 is subjected to a water-cooling process and an air- A separating step of separating the thermoplastic plastic light reflector molded product 100 molded in the molding die 10 from the molding die 10 by switching the vacuum pressure acting on the damper 15 of the mold 11 to the exhaust pressure;
And a process of removing scrap by dividing or shaping the molded thermoplastic plastic reflector molding 100 having a plurality of cavities 101 molded and separated from the molding die 10 to a size suitable for the use thereof Of the thermoplastic plastic light reflector. The method according to claim 1,
Wherein the material (110) made of a thermoplastic plastic film or sheet rolled in a roll state used in the material supply step has a thickness of 3 mm or less. The method according to claim 1,
Wherein the preheating of the material (110) in the material preheating process is performed by preheating the material (110) for at least 10 seconds through the hot chamber (50) at 240 to 340 ° C. The method according to claim 1,
The vacuum pressure acting on the suction holes 12 formed in the respective cavity ports 11 through the damper 15 of the molding die 10 in the shape fixing step is in the range of -0.5 atm to -2 atm Method of manufacturing a thermoplastic plastic light reflector. In constructing the thermoplastic plastic light reflector molding die 10 for molding the material 110 made of a thermoplastic plastic film or sheet into a reflector having a plurality of cavities 101,
A molding die 10 having a plurality of cavity ports 11 formed therein, each cavity port 11 having a suction hole 12; A press mold 20 in which cavity forming protrusions 21 are formed so as to form a set by mating with a plurality of cavity ports 11 formed in the forming mold 10; Wherein pressure transmitting means is configured to selectively supply the vacuum pressure and the evacuation pressure to the suction holes (12) formed in the cavity ports (11) of the molding die (10). 6. The method of claim 5,
The molding die 10 having the suction holes 12 formed in the plurality of cavity ports 11 is provided with a damper 15 communicating with the suction holes 12 formed in the plurality of cavity ports 11 Wherein the mold is integrally formed and connected to the pressure transmitting means. 6. The method of claim 5,
The press mold 20 constituting a set of cavities for forming the cavity forming protrusions 21 on the plurality of cavity ports 11 formed on the forming mold 10 is connected to the cavity port 11 of the molding die 10 Wherein at least three ventilation holes (22) are formed in the respective cavity forming projections (21) which are spaced apart from the suction holes (12) formed in the cavity port (11) . The method according to claim 6,
The damper 15 communicating with the suction holes 12 formed in the plurality of cavity ports 11 is formed so that the volume forming the space of the damper 15 is larger than the volume of the plurality of cavity ports 11 of the molding die 10 So that the volume of the formed plastic space is equal to or more than half the volume of the formed plastic space. The method according to claim 5 or 6,
Wherein the number of the suction holes (12) formed in each of the cavity ports (11) of the molding die (10) is 6 to 12. The method according to claim 5 or 6,
The cavity port 11 formed in the molding die 10 has a plurality of cavity ports 11 having a depth of 0.3 to 0.8 times the width of the inlet in the widthwise direction of the cavity 10 at intervals of 0.08 to 0.25 times the width of the inlet. Wherein the thermoplastic plastic lighting reflector molding mold structure is arranged in a row. 11. The method of claim 10,
The cavity port 11 formed in the molding die 10 has a length of 100 to 200 mm and a depth of 70 to 180 mm and a length 30 of one side of the bottom surface of the cavity port 11, And the cavity pots (11) having a diameter of 60 mm to 60 mm are arranged at an interval of at least 30 mm at an interval of 3 to 6 in an array. 11. The method of claim 10,
The cavity port 11 formed in the molding die 10 has a length of 25 mm or more and a depth of 20 mm or less and a length of one side of the bottom surface of 20 mm or more at the edge of the upper end inlet of the cavity port 11 Wherein the molds are arranged horizontally and vertically continuously at intervals of at least 2 mm. 11. The method of claim 10,
The cavity port 11 formed in the molding die 10 has a shape of hemispherical shape and each of the cavity ports 11 having a diameter of 100 to 200 mm and a depth of 70 to 180 mm at the upper end of the cavity And three to six vertical lengths are arranged in the longitudinal direction of the mold. 11. The method of claim 10,
The cavity pots 11 formed in the molding die 10 are arranged horizontally and vertically at intervals of at least 2 mm with a diameter of 25 mm or more and a depth of 20 mm or less at the upper end entrance of the cavities, A thermoplastic plastic light reflector molding mold structure. A thermoplastic plastic material 110 having a thickness of at least 3 mm, Material preheating process; A molding preparation process; A drawing forming process; A shape fixing step; A water cooling step; A cooling process; A separation process; A plurality of cavities 101 having a width of 0.3 to 0.8 times the width of the entrance are formed by repeating a plurality of lengthwise and longitudinally repeated lengths at an interval of 0.08 to 0.25 times the width of the mouth of the thermoplastic plastic light reflector . 16. The method of claim 15,
When the shape of the cavity 101 is rectangular, the cavity 101 having a length of 100 to 200 mm, a depth of 70 to 180 mm, and a length of 30 to 60 mm on one side of the bottom surface, Wherein the light guide plate comprises a set of three to six light guide plates. 16. The method of claim 15,
When the shape of the cavity 101 is a quadrangle, it is constituted by a set of one having a length of 25 mm or more and a depth of 20 mm or less and a length of 20 mm or more on one side of the bottom surface, The thermoplastic plastic light reflector. 16. The method of claim 15,
When the shape of the cavity 101 is a hemispherical shape, cavities of 100 to 200 mm in peripheral diameter at the upper end and 70 to 180 mm in depth are arranged in a group of 3 to 6, Thermoplastic plastic lighting reflector. 16. The method of claim 15,
Wherein the cavity has a hemispherical shape, and the upper end of the cavity has a circumferential diameter of 25 mm or more and a depth of 20 mm or less.

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