WO2022145839A1

WO2022145839A1 - Lwrt undercover molding apparatus

Info

Publication number: WO2022145839A1
Application number: PCT/KR2021/019361
Authority: WO
Inventors: 이학봉; 조청제; 이시우; 박문규; 윤영선
Original assignee: 한화솔루션 주식회사; 주식회사 에이앤피
Priority date: 2020-12-31
Filing date: 2021-12-20
Publication date: 2022-07-07
Also published as: KR102327379B1

Abstract

The present invention relates to an LWRT-based undercover forming apparatus in which a guide portion of a separation unit is horizontally projected from lead ends of both horizontal sides of an upper mold die, and corresponding thereto, a support unit is horizontally projected from lead ends of both horizontal sides of a lower mold die, such that a first separation unit and a second separation unit are elongated to each lead end of both horizontal sides of each of the upper mold die and the lower mold die, such that when combining an upper mold unit and a lower mold unit by the first separation unit and the second separation unit, not only a raw material sheet of an LWRT-based undercover, but also a scrap portion can be simultaneously separated in a rapid and simple manner, and thus, by excluding a separate separation process, the manufacturing cost and manufacturing time of an undercover can be maximized, and safety accidents from additional operations of a worker can be prevented in advance while promoting convenience for the operator. By rapidly and accurately separating the raw material sheet and scraps, the apparatus improves the manufacturing process of an LWRT-based undercover and prevents formation of wrinkles in the undercover, and thus can improve the durability and outer appearance of the undercover and maximize the quality of the undercover. The present invention also promotes miniaturization of the LWRT-based undercover forming apparatus through an optimized structure and placement thereof, and thus can reduce the installation cost of the forming apparatus and the time and costs of maintenance and repair, enhance space efficiency, and improve safety and reliability.

Description

LWRT material undercover molding equipment

The present invention relates to an LWRT material undercover forming apparatus, and more particularly, the separation unit is formed to extend to both sides of the upper die and lower die in the horizontal direction to separate the raw material sheet and scrap of the LWRT material undercover at the same time to under the LWRT material. LWRT material undercover that can improve the manufacturing process of the cover, improve the durability and appearance of the undercover, improve the quality, reduce the manufacturing cost of the undercover, promote operator convenience, and maximize safety and reliability It relates to molding equipment.

In general, an undercover is mounted on the lower surface of the vehicle, and this undercover serves to protect the parts installed in the lower part of the car, including the engine and transmission, and also allows foreign substances to enter the vehicle through the lower part of the car while the car is running. It serves to prevent entry into the interior.

In addition, the undercover of the vehicle absorbs or blocks noise generated in the vehicle, in particular, noise such as engine and transmission, and performs an important function of preventing noise from propagating to the outside of the vehicle.

Various foreign substances such as stones, water, and various contaminants are splashed on the vehicle or are frequently attached to the vehicle while the vehicle is running. Since it may rub against obstacles existing on the road surface, fatal damage to the engine, transmission, and main parts of the vehicle in the engine room may occur.

The undercover installed on the lower part of the vehicle is formed in various ways according to the shape of the vehicle.

In addition, the undercover is formed of a steel material or a plastic material. A sound-absorbing part made of a relatively soft and porous material for sound absorption may be formed on the upper surface of the undercover (the surface facing the interior of the vehicle).

As such, the undercover for automobiles is required to have excellent sound absorption/insulation performance that can block external propagation of noise, as well as high strength enough to sufficiently block external shocks.

Such an undercover is usually installed on the cross member under the front bumper to improve the aerodynamic performance of the vehicle and to protect the engine room internal parts. Facilitates airflow under the vehicle.

In addition, today, in order to improve fuel efficiency of automobiles through weight reduction of automobiles, plastic materials are used rather than steel materials to achieve weight reduction.

In particular, recently, lightweight reinforced thermoplastic composite materials (LWRT) have been used to reduce weight and increase strength.

This undercover is manufactured by adding a nonwoven fabric to both sides of the LWRT sheet, going through a hot plate lamination process, and then trimming it through an undercover mold. Specifically, the undercover molding apparatus includes an upper mold and a lower mold.

In the conventional LWRT material undercover molding apparatus, in order to form the undercover with LWRT material, the molding apparatus was manufactured with two cavities in the upper and lower molds and one cavity in the trim.

When forming with such an LWRT material undercover molding device, the operator has to separate the middle of the semi-finished product from the molding die using a cutter knife, which leads to a decrease in workability, inconvenience to the operator, and a safety accident. there was

In addition, the conventional LWRT material undercover molding apparatus applies a V blade to form the LWRT material undercover in order to improve this problem, but when the V blade is applied, the V blade wears out and wrinkles occur due to the inability to give tension to the raw material sheet. Therefore, there was a problem in that durability was lowered due to peeling, etc., and product quality was lowered due to wrinkles.

Furthermore, the conventional LWRT material undercover molding apparatus uses a method of marking to cut the corresponding part using a V blade on the raw material sheet by applying an overlap of 0.3 mm. There was a problem that the improvement did not proceed effectively.

In addition, the conventional LWRT material undercover molding apparatus separates the raw material sheet and the scrap part at the same time to improve the process, so productivity is lowered, and the installation cost and maintenance time are not achieved due to the failure to achieve miniaturization of the molding apparatus. There were problems in that the cost and manufacturing time increased, resulting in consumer dissatisfaction, decreased space utilization, and decreased safety and reliability.

Accordingly, by separating the raw material sheet and scrap of the LWRT material undercover at the same time, the manufacturing process of the LWRT material undercover is improved, the durability and appearance of the undercover are improved to increase the quality, improve productivity, and There is an urgent need to develop an LWRT material undercover molding device that can maximize satisfaction and improve safety and reliability.

The present invention is to solve the above problems, an object of the present invention is that the guide portion of the separation unit is formed to protrude in the horizontal direction from the front end of both sides of the horizontal direction of the upper die, and the support portion is horizontal of the lower die to correspond to this. The upper mold unit is formed to protrude from the front end of both sides in the horizontal direction, so that the first separating part and the second separating part extend to the respective ends of the horizontally opposite sides of the upper mold die and the lower mold die, respectively, as the first separating part and the second separating part When combining the lower mold unit and the raw material sheet of the LWRT material undercover, it is quickly and easily separated from the raw material sheet to the scrap part. Prevents safety accidents due to additional work in advance and promotes operator convenience, improves the manufacturing process of LWRT material undercover by quickly and accurately separating scraps from raw material sheets, and prevents the occurrence of wrinkles in the undercover Maximizes the quality of the undercover by improving the durability and appearance of the LWRT material, and reduces the installation cost and maintenance time and cost of the molding equipment by promoting miniaturization through the optimized structure and arrangement of the LWRT material undercover molding equipment, and space utilization It is to provide an LWRT material undercover molding device that can increase the efficiency and improve safety and reliability.

In order to achieve the object of the present invention, the LWRT material undercover molding apparatus according to an embodiment of the present invention is an LWRT material undercover molding apparatus for molding and trimming an undercover for automobiles from an LWRT material, the LWRT material undercover The molding apparatus includes: an upper mold unit having an upper mold base, a plurality of upper mold cavities formed on a coupling surface of the upper mold die for molding and trimming an upper mold die formed on the upper mold base, and an undercover of the LWRT material; A lower mold base disposed under the upper mold base to face each other in the height direction with the upper mold base, and a lower mold die formed on the lower mold base to face each other in the height direction with the upper mold die and the upper mold cavity a lower mold unit having a plurality of lower mold cavities formed on a fastening surface of the lower mold die to face each other in a height direction with the upper mold cavity for forming and trimming the undercover of the LWRT material; a separation unit formed in the upper mold unit and the lower mold unit to form the LWRT material undercover and separate the plurality of upper mold cavities and the lower mold cavities from each other for trimming; and the upper mold tension plate installed on the upper mold base so as to be adjacent to the peripheral surface of the upper mold die, and the upper mold tension plate and the upper mold tension plate to be adjacent to the peripheral surface of the lower mold die so as to face each other in the height direction. a tension unit installed in the upper mold unit and the lower mold unit to separate the raw material sheet of the undercover of the LWRT material, including a tension unit, wherein the separation unit comprises the upper mold die and the It is formed to extend to both sides of the lower mold die in the horizontal direction, so that it is possible to separate the raw material sheet of the LWRT material undercover and scrap at the same time.

Further, in a preferred embodiment of the LWRT material undercover forming apparatus according to the present invention, the separating unit of the LWRT material undercover forming apparatus separates the upper die cavity corresponding to the shape of the upper die cavity. a first separation unit detachably inserted and installed on the coupling surface; a second separating part detachably inserted and installed in the fastening surface of the lower mold die so as to face each other in a height direction with the first separating part while separating the lower mold cavity according to the shape of the lower mold cavity; a guide part protruding from both ends of the upper die in the horizontal direction in the horizontal direction to extend and support the first separation part from both ends in the horizontal direction; and a support part formed to protrude in a horizontal direction while facing each other in a height direction from both ends of the lower mold die in a horizontal direction to extend and support the second separation part from both ends in a horizontal direction.

In addition, in a preferred embodiment of the LWRT material undercover molding apparatus according to the present invention, the first separation portion and the second separation portion of the separation unit of the LWRT material undercover molding apparatus are formed of a steel material, and the upper mold unit and the lower portion are formed of a steel material. The upper mold cavity and the lower mold cavity of the mold unit may be formed of an aluminum material.

Further, in a preferred embodiment of the LWRT material undercover forming apparatus according to the present invention, the upper die tension plate of the tension unit of the LWRT material undercover forming apparatus is formed to protrude the guide portion. The lower mold tension plate is divided into two horizontally based on the part, and the lower mold tension plate faces each other in the height direction with the upper mold tension plate on the circumferential surface of the upper mold die on which the support part is formed to protrude horizontally based on the support part. It can be divided into two directions.

In addition, in a preferred embodiment of the LWRT material undercover molding apparatus according to the present invention, the guide portion of the separation unit of the LWRT material undercover molding apparatus is formed to protrude in the horizontal direction from the respective front ends of both sides in the horizontal direction of the upper die die bridge part; a seating part which is recessed in the height direction inside the bridge part and installed to extend and insert the first separation part in the horizontal direction; and a support part extending from the outside of the bridge part in the height direction to support the bridge part.

In addition, in a preferred embodiment of the LWRT material undercover molding apparatus according to the present invention, the support portion of the separation unit of the LWRT material undercover molding apparatus is in the height direction with the bridge portion at each tip of both sides in the horizontal direction of the lower mold die. Flange portions protruding and extending in the horizontal direction while facing each other; a groove portion formed inside the flange portion to be recessed in the height direction so as to face each other in the height direction with the seating portion, the second separation portion being extended and inserted in the horizontal direction; and a rib portion extending from the outside of the flange portion in the height direction to support the flange portion.

In addition, in a preferred embodiment of the LWRT material undercover molding apparatus according to the present invention, the first separation portion of the separation unit of the LWRT material undercover molding apparatus extends in a horizontal direction, the body portion is inserted into the seating portion; a blade portion extending horizontally to a stepped lower portion of the body portion; and a round part formed to be rounded at the tip of the blade part, wherein the second separating part extends in a horizontal direction to correspond to the main body part, and includes a body part inserted and installed in the groove part; and a receiving portion extending horizontally to the upper portion of the body portion in correspondence to the blade portion so as to complementarily couple with the blade portion.

In the LWRT material undercover forming apparatus according to the present invention, the guide part of the separation unit is formed to protrude in the horizontal direction from the front end of both sides of the upper die in the horizontal direction, and the support portion is horizontal from the front end of both sides in the horizontal direction of the lower die to correspond to this. is formed to protrude, and the first separating part and the second separating part are respectively arranged to extend to the front ends of both sides of the upper mold die and the lower mold die in the horizontal direction to form the first separating part and the second separating part. In the case of LWRT material, as the raw material sheet of the undercover and the scrap part are quickly and easily separated at the same time, a separate separation process is excluded to reduce the manufacturing cost and manufacturing time of the undercover, thereby maximizing productivity, and preventing safety accidents caused by additional work by workers. It has the effect of preventing in advance and promoting the convenience of workers.

In addition, in the LWRT material undercover molding apparatus according to the present invention, the first separating part and the second separating part are detachably inserted into the guide part and the support part which are formed to protrude from the ends of both sides in the horizontal direction of the upper die and lower die, respectively. This improves the manufacturing process of the LWRT material undercover by quickly, simply and accurately separating the raw material sheet and the scrap part at the same time, and improves the durability and appearance of the undercover by preventing the occurrence of wrinkles in the undercover, thereby maximizing the quality of the undercover. There is an effect that can be done.

Furthermore, the LWRT material undercover molding apparatus according to the present invention is miniaturized through the optimized structure and arrangement of the LWRT material undercover molding apparatus, thereby reducing the installation cost and maintenance time and cost of the molding apparatus, and increasing the space utilization It has the effect of improving safety and reliability.

In addition, the LWRT material undercover molding apparatus according to the present invention has the effect of improving the satisfaction of consumers, promoting export, improving fuel efficiency of automobiles and promoting environmental protection through weight reduction of the undercover.

1 shows a plan view of the upper mold unit of the LWRT material undercover molding apparatus according to the present invention.

2 shows a side view of the upper mold unit of the LWRT material undercover molding apparatus according to the present invention.

3 is a plan view of the lower mold unit of the LWRT material undercover molding apparatus according to the present invention.

4 shows a side view of the lower mold unit of the LWRT material undercover molding apparatus according to the present invention.

5 is a plan view showing a state in which the upper mold unit of the LWRT material undercover molding apparatus according to the present invention is lowered and combined with the lower mold unit.

6 is a cross-sectional view taken along line A-A of FIG. 5 .

7 is an enlarged view of part B of FIG. 6 .

8 is a conceptual diagram illustrating a process of combining the first separation unit and the second separation unit of the separation unit of the LWRT material undercover molding apparatus according to the present invention.

9 is a perspective view of the second separation unit of the separation unit of the LWRT material undercover molding apparatus according to the present invention.

1: LWRT material undercover molding device

100: prize-type unit

110: prize mold base

120: prize die

130: prize mold cavity

200: lower mold unit

210: lower mold base

220: lower mold die

230: lower mold cavity

300: separation unit

310: guide unit

311: bridge part

312: seating part

313: support

320: support unit

321: flange part

322: groove part

323: rib part

330: first separation unit

331: body part

332: blade part

333: round part

340: second separation unit

341: body part

341: receptacle

400: tension unit

410: upper tension plate

411: first upper tension plate member

412: second upper tension plate member

420: lower tension plate

421: first lower tension plate member

422: second lower tension plate member

Hereinafter, with reference to the drawings of the LWRT material undercover molding apparatus according to an embodiment of the present invention will be described in detail. The embodiments introduced below are provided as examples so that the spirit of the present invention can be sufficiently conveyed to those skilled in the art. Accordingly, the present invention is not limited to the embodiments described below and may be embodied in other forms. And, in the drawings, the size and thickness of the device may be exaggerated for convenience. Like reference numbers refer to like elements throughout.

Advantages and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention pertains It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout. The sizes and relative sizes of layers and regions in the drawings may be exaggerated for clarity of description.

The terminology used herein is for the purpose of describing the embodiments, and thus is not intended to limit the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, "comprise" and/or "comprising" refers to the presence of one or more other components, steps, operations and/or elements mentioned. or addition is not excluded.

Figure 1 shows a plan view of the upper mold unit of the LWRT material undercover molding apparatus according to the present invention, Figure 2 shows the side of the upper mold unit of the LWRT material undercover molding apparatus according to the present invention. 3 is a plan view of the lower mold unit of the LWRT material undercover forming apparatus according to the present invention, and FIG. 4 is a side view of the lower die unit of the LWRT material undercover forming apparatus according to the present invention. 5 is a plan view showing a state in which the upper mold unit of the LWRT material undercover molding apparatus is lowered and combined with the lower mold unit according to the present invention, and FIG. 6 is a cross-sectional view taken along the line A-A of FIG. Shows an enlarged view of a part. 8 is a conceptual diagram illustrating a process of combining the first separation part and the second separation part of the separation unit of the LWRT material undercover molding apparatus according to the present invention, and FIG. 9 is the separation unit of the LWRT material undercover molding apparatus according to the present invention. shows a perspective view of the second separation part of the

Definitions of terms used below are as follows. "Horizontal direction" means a longitudinal direction in the same member, that is, the X-axis direction in FIGS. 1 to 6, and "vertical direction" means a longitudinal direction in the same member while orthogonal to the longitudinal direction, that is, in FIGS. 6 means the Y-axis direction, and "height direction" means the vertical direction in the same member while perpendicular to the horizontal and vertical directions, that is, the Z-axis direction in FIGS. 1 to 6 . In addition, upper (upper) means an upward direction in "height direction", and downward (lower) means a downward direction in "height direction". “One side (one end)” and “the other end” refer to either end of the same member in a horizontal direction, a vertical direction, or a height direction. In addition, the inside (inside) means the direction from each same member toward the center of the same member, and the outside (outside) means the opposite part of the inside, that is, the outside.

An LWRT material undercover forming apparatus 1 according to the present invention will be described with reference to FIGS. 1 to 9 . 1 to 9, the LWRT material undercover forming apparatus 1 according to a preferred embodiment of the present invention includes an upper mold unit 100, a lower mold unit 200, a separation unit 300, and It includes a tension unit 400 .

The LWRT material undercover forming apparatus 1 according to the present invention molds and trims the undercover for automobiles from the LWRT material. In addition, LWRT (Low Weight Reinforced Thermoplastics) refers to a reinforced thermoplastic composite material for weight reduction and increased strength. In addition, the LWRT material undercover molding apparatus 1 according to the present invention can be selected from among SMC (sheet molding compound), GMT (glass fiber reinforced thermoplastics), LFT (Long Fiber Thermoplastics), and CFRTPC (Continuous Fiber Reinforced ThermoPlastic Composite) as needed. The undercover for automobiles is molded from a superlite material formed of any one or a composite of two or more thereof.

The upper mold unit 100 includes the upper mold base 110 and the upper mold die 120 formed on the upper mold base, and a plurality of upper molds formed on the coupling surface of the upper mold die to form and trim the LWRT material undercover. A cavity 130 is provided. That is, an ejector or a connection line is installed on the upper mold base of the upper mold unit 100, and the upper mold unit is raised and lowered under the control of the control unit to be combined with the lower mold unit to be described later. The upper mold base forms the outer shape of the upper mold unit and forms a space in which the upper mold die is installed. The prize mold die is installed on the prize mold base. The upper die cavity is formed on the lower surface of the upper die, which is the coupling surface of the upper die, according to the shape of the product to be manufactured. That is, in a state in which the upper mold base and the lower mold base are arranged to face each other in the height direction, the upper mold die is fastened to the upper mold base. The face is engaged with the fastening face of the lower mold die. The upper mold cavity is formed in various shapes depending on the shape of the product to be manufactured on this bonding surface. In addition, a plurality of upper mold cavities are formed in the upper mold die to improve productivity.

The lower mold unit 200 includes a lower mold base 210 disposed under the upper mold base to face each other in the height direction and a lower mold die formed on the lower mold base to face each other in the height direction with the upper mold die. A plurality of lower mold cavities 230 formed on the fastening surface of the lower mold die to face each other in the height direction with the upper mold cavity in order to form and trim the LWRT material undercover by being combined with the 220 and the upper mold cavity. . That is, various connection lines are installed in the lower mold unit 100 and are combined with the upper mold unit according to the descending of the upper mold unit to produce various types and types of automobile parts. The lower mold base is installed on the ground or the bed to form the outer shape of the lower mold unit, and forms a space in which the lower mold die is installed. The lower mold cavity is formed on the upper surface of the lower mold die, which is a fastening surface of the lower mold die, so as to correspond to the upper mold cavity. In addition, in order to improve productivity, a plurality of lower die cavities are formed in the lower die die to be the same as the number of upper die cavities.

Separation unit 300 forms an LWRT material undercover and separates a plurality of upper mold cavities and lower mold cavities into one independent upper mold cavity and lower mold cavity for trimming. is formed

1 to 9, the separation unit 300 of the LWRT material undercover molding apparatus 1 according to the present invention includes a guide part 310, a support part 320, a first separation part 330, and a second separation unit 340 .

The guide part 310 is formed to protrude in the horizontal direction from both ends of the upper die in the horizontal direction to extend and support the first separation part from both ends in the horizontal direction.

The support part 320 is formed to protrude in the horizontal direction while facing the guide part in the height direction at both ends of the lower die in the horizontal direction to extend and support the second separation part from both ends in the horizontal direction.

The first separating part 330 is installed and detachably inserted into the coupling surface of the upper mold die to separate the upper mold cavity according to the shape of the upper mold cavity. That is, the first separating portion corresponds to the shape of the plurality of upper mold cavities on the lower surface of the upper mold die, which is the coupling surface of the upper mold die, to separate the plurality of upper mold cavities into independent upper mold cavities. It is inserted and installed in the guide groove of the upper die die so that it can be detached by bolts, rivets, etc. on the lower surface.

The second separating part 340 is detachably inserted and installed on the fastening surface of the lower mold die so as to face each other in the height direction with the first separating part while separating the lower mold cavity according to the shape of the lower mold cavity. That is, the second separating portion corresponds to the shape of the plurality of lower mold cavities on the upper surface of the lower mold die, which is the fastening surface of the lower mold die, to separate the plurality of lower mold cavities into independent lower mold cavities. It is inserted and installed in the guide groove of the lower mold die so that it can be detached by bolts, rivets, etc. on the upper surface.

In addition, although not necessarily limited thereto, the first separating part and the second separating part of the LWRT material undercover forming apparatus according to a preferred embodiment of the present invention are formed of a steel material, and an upper mold cavity and a lower mold cavity are formed. is made of aluminum material. Accordingly, the first separating part and the second separating part have high hardness, high strength, and durability during heat treatment, so that the raw material sheet and scrap can be cut quickly, easily and accurately to minimize the occurrence of wrinkles to improve product quality, and to improve product quality with rigidity and durability. This can reduce wear and tear, thereby reducing maintenance costs and time. In addition, the upper mold cavity and the lower mold cavity are made of relatively light aluminum material, which makes it easy to move during molding and minimizes product load to improve stability, prevent failures, and prevent safety accidents. As it cools quickly, it can reduce manufacturing time and improve productivity.

The tension unit 400 is adjacent to the circumferential surface of the lower mold die so as to face each other in the height direction with the upper mold tension plate and the upper mold tension plate installed on the upper mold base so as to be adjacent to the circumferential surface of the upper mold die. It has a lower mold tension plate to be installed, and is installed in the upper mold unit and the lower mold unit to separate the raw material sheet of the undercover of the LWRT material.

That is, the upper mold tension plate is installed on the upper mold base to separate and press the raw material sheet adjacent to the peripheral surface of the upper mold die from the four sides of the side, which is the peripheral surface of the upper mold die, and the lower mold tension plate is the lower mold tension plate of the lower mold die. It is installed on the lower mold base to separate and press the raw material sheet adjacent to each side of the lower mold die while facing each other in the height direction on the four sides of the peripheral surface.

At this time, as shown in Figs. 2 and 4, the upper mold tension plate is installed on each of the four peripheral surfaces of the upper mold die of the tension unit 400 of the LWRT material undercover molding apparatus according to the present invention. In 410, the lower mold tension plate ( 420), on the peripheral surface of the upper mold die on which the support part is formed to protrude, face each other in the height direction with the upper mold tension plate, and is divided into two horizontally based on the support part. That is, the upper mold tension plate 410 on both sides of the upper die in the horizontal direction on which the guide part is formed to protrude is the first upper tension plate member 411 and the second upper tension plate member 412 in the horizontal direction based on the guide part. It is formed and arranged in a state of being divided into two. Similarly, the lower mold tension plate 420 on both sides of the lower mold die in the horizontal direction on which the support part is formed to protrude is the first lower tension plate member 421 and the second lower tension plate member 422 in the horizontal direction based on the support part. It is formed and arranged in a state divided into two.

Accordingly, the LWRT material undercover molding apparatus according to the present invention is miniaturized through the optimized structure and arrangement of the LWRT material undercover molding apparatus, thereby reducing the installation cost and maintenance time and cost of the molding apparatus, and increasing the space utilization In addition, it is possible to improve safety and reliability, promote export activation by improving consumer satisfaction, and improve fuel efficiency of automobiles and protect the environment by reducing the weight of the undercover.

In addition, as shown in FIGS. 1 to 9, the guide part 310 of the separation unit of the LWRT material undercover molding apparatus 1 according to the present invention includes a bridge part 311, a seating part 312, and a support part ( 313).

The bridge part 311 forms the outer shape of the guide part, and forms a space in which the first separation part is extended and installed. That is, the bridge part 311 is formed to protrude by a predetermined horizontal length in the horizontal direction from the front ends of both sides of the upper die in the horizontal direction.

Preferably, the horizontal length (D) of the bridge portion is 0.5 to 1 times or less of the value obtained by subtracting the horizontal length (L2) of the upper die from the horizontal length (L1) of the upper die base. It is formed extending in the horizontal direction from each tip of both sides in the horizontal direction. ( D = (L1-L2) × 0.5 ~ 1) If the horizontal length (D) of the bridge part is equal to the horizontal length (L1) of the upper mold base, If it is less than 0.5 times the value obtained by subtracting the horizontal length (L2) of the upper die, the scrap cannot be pressed in a sufficiently supported state, and wrinkles occur in the product, resulting in deterioration of quality, inconvenience to the operator, and increase in the occurrence of defective products. Accordingly, there is a problem in that productivity is lowered. Similarly, if the horizontal length (D) of the bridge part exceeds 1 times the value obtained by subtracting the horizontal length (L2) of the upper mold die from the horizontal length (L1) of the upper mold base, the bridge part is outside the upper mold base As it protrudes to the top, the manufacturing cost of the prize mold unit increases, and space utilization decreases because miniaturization cannot be achieved. There is a problem in that the damage or breakage increases, thereby increasing the maintenance cost.

The seating part 312 is recessed in the height direction inside the bridge part, and the first separation part is installed and extended in the horizontal direction. In addition, the seating portion 312 is formed in the bridge portion with the same depth as the depth of the guide groove extending in the horizontal and vertical directions on the lower surface of the upper die, which is the coupling surface of the upper die, so that the first separation portion is parallel. It can be combined stably, simply and quickly in one state.

The support part 313 is formed to extend in the height direction from the outside of the bridge part to support the bridge part. That is, by reinforcing and supporting the impact when manufacturing the undercover with the LWRT material raw material sheet by the combination of the upper mold unit and the lower mold unit by the support part 313, damage or damage to equipment is prevented in advance, and maintenance time and cost can save

In addition, as shown in FIGS. 1 to 9 , the support part 320 of the separation unit of the LWRT material undercover molding apparatus 1 according to the present invention includes a flange part 321 , a groove part 322 , and a rib part. (323).

The flange part 321 forms the outer shape of the support part, and forms a space in which the second separation part is extended and installed. That is, the flange portion 321 is formed to protrude by a predetermined horizontal length in the horizontal direction while facing each other in the height direction with the bridge portion at each tip of both sides in the horizontal direction of the lower mold die.

Preferably, the horizontal length (W) of the flange portion is 0.5 times or more to 1 times or less of the value obtained by subtracting the horizontal length (H2) of the lower mold die from the horizontal length (H1) of the lower mold base. It is formed to extend in the horizontal direction from each tip of both sides of the lower die in the horizontal direction to correspond to the length in the horizontal direction. ( W = (H1-H2) × 0.5 ~ 1) If the horizontal length (W) of the flange If it is less than 0.5 times the value obtained by subtracting the horizontal length (H2) of the lower mold die from the horizontal length (H1) of the mold base, the scrap can be pressed while the first separation part and the second separation part of the bridge part are fully supported. There is a problem in that the product is wrinkled and the quality is deteriorated, causing inconvenience to the operator, and the productivity is lowered due to the increase in the occurrence of defective products. Similarly, if the horizontal length (W) of the flange part exceeds 1 times the value obtained by subtracting the horizontal length (H2) of the lower mold die from the horizontal length (H1) of the lower mold base, the flange part of the lower mold base As the lower mold unit protrudes to the outside, the manufacturing cost of the lower mold unit increases, and space utilization decreases because miniaturization cannot be achieved. There is a problem in that the maintenance cost increases due to the increase in damage or breakage.

In addition, the horizontal length (D) of the bridge part and the horizontal length (W) of the flange part are formed extending in the horizontal direction from each tip of both sides of the upper die and each tip of both sides of the lower die, respectively, so that the horizontal length (W) is equal to each other. Accordingly, by separating the raw material sheet and scrap of the LWRT material undercover at the same time to prevent wrinkles from occurring, the durability and quality of the product is improved, the convenience of workers is promoted, the work process is improved to maximize productivity, and production cost and unit cost can be reduced.

The groove part 322 is recessed in the height direction so as to face each other in the height direction with the seating part inside the flange part, and the second separation part is installed and extended in the horizontal direction. In addition, the groove portion 322 is formed in the flange portion to the same depth as the depth of the guide groove extending in the horizontal and vertical directions on the upper surface of the lower die die, which is the fastening surface of the lower die, so that the second separation portion is parallel. It can be combined stably, simply and quickly in one state.

The rib portion 323 is formed to extend in the height direction from the outside of the flange portion to support the flange portion. In other words, by reinforcing and supporting the impact together with the support part when manufacturing the undercover with the LWRT material raw material sheet by the combination of the upper mold unit and the lower mold unit by the rib part, it prevents damage or damage to the equipment in advance and saves maintenance time and maintenance time. cost can be reduced.

In addition, as shown in FIGS. 1 to 9 , the first separation unit 330 of the separation unit of the LWRT material undercover molding apparatus 1 according to the present invention extends in the horizontal direction and the body portion is inserted and installed in the seating portion. (331) and a blade portion 332 formed to extend in the horizontal direction stepwise to the lower portion of the body portion, and a round portion 333 formed to be rounded at the tip of the blade portion. It is possible to prevent equipment damage or damage by ensuring the straightness of the equipment and mold by the round part.

In addition, as shown in FIGS. 1 to 9 , the second separating part 340 of the separating unit of the LWRT material undercover molding apparatus 1 according to the present invention extends in the horizontal direction to correspond to the main body part and extends into the groove part. It includes a body portion 341 to be inserted and installed and a receiving portion 342 formed to extend horizontally to the upper portion of the body portion corresponding to the blade portion so as to complementarily couple with the blade portion.

In addition, the first separation unit is divided into a plurality of parts and installed to be inserted into the guide groove of the upper mold die and the seating part of the guide part, and the second separation part is divided into a plurality of parts and inserted and installed into the guide groove of the lower mold die and the groove part of the support part. In this way, as the first separating part and the second separating part are divided into a plurality according to the horizontal length of the upper mold base and the upper mold die and the lower mold base and the lower mold die and are inserted and disposed, the installation cost and time are reduced, and damage or By replacing and changing only the actually damaged individual members at the time of damage, it is possible to reduce maintenance costs and time, prevent wastage of resources, and improve reliability and stability by accurately and simply controlling the amount of raw material sheets and scraps.

Therefore, in the LWRT material undercover molding apparatus according to the present invention, the guide part of the separation unit is formed to protrude in the horizontal direction from the front end of both sides in the horizontal direction of the upper die, and the support part is formed to correspond to this at the front end of both sides in the horizontal direction of the lower die. It is formed to protrude in the horizontal direction, and the first separating part and the second separating part are arranged to extend to the front ends of both sides of the upper mold die and the lower mold die in the horizontal direction, respectively, to form the first separating part and the second separating part of the upper mold unit and the lower mold unit. When combining, the raw material sheet of the LWRT material undercover and even the scrap part are quickly and easily separated at the same time, so a separate separation process is excluded to reduce the manufacturing cost and manufacturing time of the undercover, thereby maximizing productivity and ensuring safety due to the additional work of the operator. In order to prevent accidents in advance and to promote the convenience of workers, the first separating part and the second separating part are detachably inserted into the guide part and the support part protruding from the tips of both sides in the horizontal direction of the upper mold die and the lower mold die, respectively. This improves the manufacturing process of the LWRT material undercover by quickly, simply and accurately separating the raw material sheet and the scrap part at the same time, and improves the durability and appearance of the undercover by preventing the occurrence of wrinkles in the undercover, thereby maximizing the quality of the undercover. can do.

In the detailed description of the present invention described above, although it has been described with reference to preferred embodiments of the present invention, those skilled in the art or those having ordinary knowledge in the technical field of the present invention described in the claims to be described later It will be understood that various modifications and variations of the present invention can be made without departing from the spirit and scope of the present invention. Accordingly, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

Claims

In the LWRT material undercover molding apparatus for molding and trimming the undercover for automobiles using the LWRT material, the LWRT material undercover molding apparatus comprises:

an upper mold unit having a upper mold base and a plurality of upper mold cavities formed on a coupling surface of the upper mold die to form and trim an upper mold die formed on the upper mold base, and an undercover of the LWRT material;

A lower mold base disposed under the upper mold base to face each other in the height direction with the upper mold base, and a lower mold die formed on the lower mold base to face each other in the height direction with the upper mold die and the upper mold cavity a lower mold unit having a plurality of lower mold cavities formed on a fastening surface of the lower mold die to face each other in a height direction with the upper mold cavity for forming and trimming the undercover of the LWRT material;

a separation unit formed in the upper mold unit and the lower mold unit to form the LWRT material undercover and separate the plurality of upper mold cavities and the lower mold cavities from each other for trimming; and

Installed on the lower mold base so as to be adjacent to the peripheral surface of the lower mold die so as to face each other in the height direction with the upper mold tension plate and the upper mold tension plate installed on the upper mold base so as to be adjacent to the peripheral surface of the upper mold die Including; and a tension unit installed in the upper mold unit and the lower mold unit to separate the raw material sheet of the undercover of the LWRT material.

The separation unit is formed to extend from both sides of the upper die and the lower die in the horizontal direction to separate the raw material sheet and scrap of the LWRT material undercover at the same time.
According to claim 1,

The separation unit is

a first separating part detachably inserted and installed on the coupling surface of the upper mold die to separate the upper mold cavity according to the shape of the upper mold cavity;

a second separating part detachably inserted and installed in the fastening surface of the lower mold die so as to face each other in a height direction with the first separating part while separating the lower mold cavity according to the shape of the lower mold cavity;

a guide part protruding from both ends of the upper die in the horizontal direction in the horizontal direction to extend and support the first separation part from both ends in the horizontal direction; and

LWRT comprising a; support portion formed to protrude in the horizontal direction while facing each other in the height direction at both ends of the lower die in the horizontal direction to extend and support the second separation portion from both ends in the horizontal direction; Material undercover molding equipment.
3. The method of claim 2,

The first separation part and the second separation part are formed of a steel material,

LWRT material undercover molding apparatus, characterized in that the upper mold cavity and the lower mold cavity are formed of an aluminum material.
4. The method of claim 3,

The upper mold tension plate is divided into two in the horizontal direction based on the guide part on the circumferential surface of the upper mold die on which the guide part is formed to protrude,

LWRT, characterized in that the lower mold tension plate is divided into two horizontally based on the support part while facing each other in the height direction with the upper mold tension plate on the circumferential surface of the upper mold die on which the support part is formed to protrude. Material undercover molding equipment.
5. The method of claim 4,

The guide unit,

a bridge portion protruding and extending in a horizontal direction from respective front ends of both sides of the upper die in the horizontal direction;

a seating part which is recessed in the height direction inside the bridge part and installed to extend and insert the first separation part in the horizontal direction; and

LWRT material undercover molding apparatus comprising a; a support part extending in the height direction from the outside of the bridge part to support the bridge part.
6. The method of claim 5,

The support unit,

a flange portion protruding and extending in a horizontal direction while facing each other in a height direction with the bridge portion at each end of both sides of the lower die in the horizontal direction;

a groove portion formed inside the flange portion to be recessed in the height direction so as to face each other in the height direction with the seating portion, the second separation portion being extended and inserted in the horizontal direction; and

LWRT material undercover molding apparatus comprising a; ribs extending in the height direction from the outside of the flange portion to support the flange portion.
7. The method of claim 6,

The first separation unit,

a body part extending in the horizontal direction and installed to be inserted into the seating part;

a blade portion extending horizontally to a lower portion of the main body portion; and

Including; a round portion formed to be rounded at the tip of the blade portion,

The second separation unit,

a body part extending in a horizontal direction to correspond to the body part and being inserted into the groove part; and

LWRT material undercover molding apparatus comprising a; a receiving portion extending in a stepwise horizontal direction to the upper portion of the body portion corresponding to the blade portion so as to complementarily couple with the blade portion.