KR102632251B1 - Manufacturing facilities of upper cover for battery module installed in electric vehicles - Google Patents

Abstract

The present invention includes a supply unit 10 for supplying a steel plate 1 wound on a roll, a flattening unit 20 for flattening the steel plate 1 supplied from the supply unit 10, and a flattened steel plate 1 of a certain length. A cutting part (30) for cutting the unit steel plate (2), a first forming part (40) for manufacturing the first upper cover (3) by bending the edge of the cut unit steel plate (2), and a first upper cover (3) ), the first, second, and third cutting parts (100, 200, 300) for manufacturing the second upper cover (7) by removing the surplus portion of the bent end, and the second upper cover (7) from which the excess portion of the bent edge is removed. ) and a cleaning unit 60 for cleaning the remolded second upper cover 7.

Description

Manufacturing facilities of upper cover for battery module installed in electric vehicles}

The present invention relates to a manufacturing facility for the upper cover of an electric vehicle battery module, and more specifically, to an electric vehicle battery module that can fundamentally prevent the problem of damage to components built into the battery module due to burrs generated during the operation of the punch. It relates to upper cover manufacturing equipment.

The battery module of an electric vehicle consists of parts such as a case and top cover, a plurality of battery cells built into the case, cables connecting them to each other, and various insulators. At this time, the top cover is tightly sealed and coupled to the upper part of the case to safely protect the battery cells and their components built into the case from the external environment.

The rectangular cover body, such as the upper cover of such a battery module, is usually made by cutting a metal plate wound in a roll shape into a certain width and a certain length to produce a unit metal plate, and then bending the edges of the cut unit metal plate with a mold. , It is made through a process of leaving only the intended depth among the bent edges and removing the remaining unnecessary parts using a cutting mold as shown in Figure 10.

On the other hand, when the bending work is completed on the rectangular cover body, the bent edge portion forms a continuous rectangular structure, so in order to maintain the bent shape stably and remove the remaining unnecessary parts, the mold is removed. The punch approaches the bent edge from the outside and cuts it.

However, when the punch approaches from the outside and cuts the edge, the burrs created during the cutting process are inevitably created on the inside. When a cover with such burrs is used, various types of burrs built into the case are used. Problems arise where parts are damaged. In particular, damage to parts due to the creation of burrs can become more serious given that the corners of the bent edges have a structure in which the angle changes rapidly.

Republic of Korea Patent No. 1618959

The present invention was proposed to improve the problems of the prior art. The purpose of the present invention is to manufacture a rectangular cover with a bent edge, so that burrs are generated inside the rectangular cover, thereby damaging the battery module components. We propose a manufacturing facility for the upper cover of an electric vehicle battery module that can fundamentally solve the problem.

In order to achieve this object, the present invention includes a supply unit 10 for supplying the iron plate 1 wound on a roll, a flattening unit 20 for flattening the iron plate 1 supplied from the supply unit 10, and a flattened iron plate ( A cutting part (30) that cuts 1) into unit steel plates (2) of a certain length, a first forming part (40) that bends the edges of the cut unit steel plates (2) to produce the first upper cover (3), A cutting part for manufacturing the second upper cover (7) by removing the excess part of the bent edge of the first upper cover (3), and a second part for re-molding the second upper cover (7) from which the surplus part of the bent edge has been removed. An upper cover manufacturing equipment for an electric vehicle battery module including a molding unit 50 and a cleaning unit 60 for cleaning the re-molded second upper cover 7, wherein the cutting unit includes first, second, and third cutting units ( 100, 200, and 300), the first cutting part 100 includes a first lower mold 110 provided with a first lower contact plate 111 on the upper surface; A first upper mold 170 having a first upper contact plate 171 on the lower surface facing the first lower mold 110; The 1-1 and 1-2 movable ends (121, 122) and the first lower contact plate (111) are spaced forward at a certain distance from the left and right sides of the front end portion of the first lower contact plate (111) and protrude upward. ) is spaced backwards at a certain distance from the left and right sides of the rear end portion and protrudes upward, and the 1-3 and 1-4 movable stages (1-3 and 1-4) are opposite the 1-1 and 1-2 movable stages (121 and 122), respectively. 125, 126); The 1-1 and 1-2 fixed stages (131 and 132) are provided in the first lower mold (110) at a certain distance to the left and right of the 1-1 and 1-2 movable stages (121 and 122), respectively. It is located at a certain distance to the left and right of the 1-3 and 1-4 movable stages (125, 126), faces the 1-3 and 1-4 movable stages (125, 126), and is provided in the first lower mold (110). 1-3, 1-4 fixed stages (135, 136); One end of each is fixedly coupled to the 1-1, 1-2, 1-3, and 1-4 movable ends (121, 122, 125, 126), respectively, and the other end of each is fixed to the 1-1, 1- 1-1, 1-2, 1-3, and 1-4 elastic means (141, 142, 145, 146); The rear end portion and the front end portion are respectively fixedly coupled to the 1-1 and 1-3 movable ends (121, 125), and the left end has a length L2 that is smaller than the length L1 of the left side of the bent end of the first upper cover (3). The 1-1 cutter end 152 is provided, and the 1-1 punch 151 located below the first lower contact plate 111, the rear end portion and the front end portion respectively have 1-2 and 1-4 movable stages ( 122, 126), respectively, and a 1-2 cutter end 156 is provided at the right end and has a length L3 smaller than the length L1 of the right side of the bent end of the first upper cover 3, so that the 1-1 punch 151 ) and a 1-2 punch (155) located below the first lower contact plate (111); The 1-1 die 161 provided in the first lower mold 110 is spaced at a certain distance to the left of the 1-1 cutter end 152, and is spaced at a certain distance to the right of the 1-2 cutter end 155. 1-2 dies 166 facing each other and provided in the first lower mold 110; The central portion faces the central portion between the 1-1 and 1-2 movable ends (121, 122) and the first portion is spaced forward at a certain distance from the center of the front end portion of the first upper contact plate (111) and protrudes downward. -1 pressurizing end (181), the central part faces the central part between the 1-3 and 1-4 movable stages (125, 126), and is spaced at a certain distance forward from the center of the rear end of the first upper contact plate (111) It consists of first and second pressure ends 185 that protrude downward; The second cutting unit 200 includes a second lower mold 210 on which a second lower contact plate 211 is provided on the upper surface; A second upper mold 270 with a second upper contact plate 271 on the lower surface facing the second lower mold 210; The 2-1 and 2-2 movable ends (221, 222) and the first lower contact plate ( 111), the 2-3 and 2-4 movable parts are formed to protrude upward at a certain distance from the front and rear of the right end, respectively, and face the 2-1 and 2-2 movable ends (221 and 222), respectively. Dan (225, 226); The 2-1 and 2-2 fixed stages (231 and 232) are provided in the second lower mold (210) at a certain distance in front of each of the 2-1 and 2-2 movable stages (221 and 222). -2-3, 2-4 fixed stages (235, 236) provided in the second lower mold (210) at a certain distance behind each of the 3, 2-4 movable stages (225, 226); The 2-1 and 2-2 support stages (233, 234), which are provided in the second lower mold (210) at a certain distance to the rear of each of the 2-1 and 2-2 movable stages (221 and 222). -2-3, 2-4 support stages (237, 238) provided in the second lower mold (210) at a certain distance in front of each of the 3, 2-4 movable stages (225, 226); One end of each is fixedly coupled to the 2-1, 2-2, 2-3, and 2-4 movable ends (221, 222, 225, 226), respectively, and the other end of each is fixed to the 2-1, 2- 2-1, 2-2, 2-3, 2-4 elastic means (241, 242, 245, 246); The left end and right end are respectively fixedly coupled to the 2-1 and 2-3 movable ends (221, 225), and the front end has a length L4 that is smaller than the length L2 of the front side of the bent end of the first upper cover (3). A 2-1 cutter end 252 is provided, and the 2-1 punch 251 located below the second lower contact plate 211, the left end portion and the right end portion, respectively, are 2-2, 2- A 2-2 cutter end 256 is fixedly coupled to each of the 4 movable ends 222 and 226 and has a length L4 smaller than the length L3 of the rear side of the bent end of the first upper cover 3 at the rear end. A 2-2 punch (255) facing the first punch (251) and located below the second lower contact plate (211); The 2-1 die 261 is spaced in front of the 2-1 cutter stage 252 and faces the 2-1 die 261, which is provided in the second lower mold 210, and is spaced at a certain distance behind the 2-2 cutter stage 255. A 2-2 die 266 opposed to the second die 266 and provided in the second lower mold 210; Each central portion faces the central portion between the 2-1 movable end (221) and the 2-1 support end (233) and the 2-3 movable end (225) and the 2-3 support end (237). And the 2-1 and 2-3 pressure ends (281, 285) are formed to protrude downward at regular intervals in the front and rear, respectively, from the center of the right end of the second upper contact plate (271), and the central portion of each is It faces the central portion between the 2-2 movable end (222) and the 2-2 support end (234) and the 2-4 movable end (226) and the 2-4 support end (238) and is in close contact with the second upper part. It consists of 2-2 and 2-4 pressure ends 282 and 286 that are spaced apart from the center of the left end of the plate 271 at regular intervals in the front and rear, respectively, and protrude downward; The third cutting part 300 includes a third lower mold 310 provided with a third lower contact plate 311 on the upper surface; A third upper mold 370 having a third upper contact plate 371 on the lower surface facing the third lower mold 310; The 3-1, 3-2, 3-3, and 3-4 movable ends (321, 322, 325, 326); 3-1, 3-2, 3-3, and 3-4 movable stages 321, 322, 325, and 326, respectively, are provided in the third lower mold 310 at a certain distance radially away from each other, 3-2, 3-3, 3-4 fixed ends (331, 332, 335, 336); One end of each is fixedly coupled to the 3-1, 3-2, 3-3, and 3-4 movable ends (321, 322, 325, 326), respectively, and the other end of each is fixed to the 3-1, 3- 3-1, 3-2, 3-3, and 3-4 elastic means (341, 342, 345, 346); The lower part is fixedly coupled to the upper surface of the front part of each of the 3-1, 3-2, 3-3, and 3-4 movable stages (321, 322, 325, 326), and the first upper cover (3) is located on the upper part. 3-1, 3-2, and 3, where the 3-1, 3-2, 3-3, and 3-4 cutter ends (352, 354, 356, and 358) corresponding to the shapes of the bent edge corners are provided, respectively. -3, 3-4 punches (351, 353, 355, 357); The 3-1, 3-2, 3-3, and 3-4 cutter stages (352, 354, 356, and 358) are radially spaced apart from each other at regular intervals and face each other. 3, 3-4 punches (351, 353, 355, 357) correspond to the respective shapes and 3-1, 3-2, 3-3, and 3-4 dies (361) provided in the third lower mold (310). , 362, 365, 366); The central portion faces each of the 3-1, 3-2, 3-3, and 3-4 movable stages (321, 322, 325, 326) and is spaced at regular intervals radially to the outside of the third upper contact plate (371). Consists of 3-1, 3-2, 3-3, and 3-4 pressure ends (381, 382, 385, 386) protruding downward; Its technical characteristics are:

Each of the 3-1, 3-2, 3-3, and 3-4 cutter ends (352, 354, 356, 358) has an internal included angle of 90° and protrudes convexly in a ∧ shape, and the 3- Each of the 1, 3-2, 3-3, and 3-4 dies (361, 362, 365, and 366) has an internal included angle of 90° and can be concavely recessed into a ∨ shape.

The 3-1, 3-2, 3-3, and 3-4 movable stages (321, 322, 325, and 326) each have first and second sliding diagonally with respect to the upper surface of the third lower mold (310). , 3, and 4 plates (391, 392, 395, and 396) are provided at the upper rear portion of each; The 3-1, 3-2, 3-3, and 3-4 punches (351, 353, 355, and 357) each have the 3-1, 3-2, 3-3, and 3-4 movable stages (321). , 322, 325, and 326) and are provided on the front portion of the upper surface of each of the first, second, third, and fourth plates (391, 392, 395, and 396); The lower portions of each of the 3-1, 3-2, 3-3, and 3-4 dies (361, 362, 365, and 366) are fixedly coupled to the upper surface of the third lower mold 310, and the upper portion is fixed to the upper surface of the third lower mold 310. is the 3-1, 3-2, 3-3, 3-4 operation group (321, 322, 325, 326) respectively and the 3-1, 3-2, 3-3, 3-4 operation group (321, 322, 325, 326) and are exposed and protrude vertically upward through the through holes (392, 394, 396, 398) formed between them, respectively, 3-1, 3-2, 3-3, 3- The rear portion of each of the 4 dies (361, 362, 365, 366) is spaced at a certain distance from the front portion of each of the 3-1, 3-2, 3-3, and 3-4 punches (351, 353, 355, 357). can be located.

Each of the 1-1st to 3rd-4th operation stages (121, 122, 125, 126, 221, 222, 225, 226, 321, 322, 325, 326) has a plurality of first, second, and third pressure surfaces. , 4 grooves (411, 421, 451, 461) are formed, and the first, 2, 3, and 4 friction reducing materials (412) are formed in each of the first, 2, 3, and 4 grooves (411, 421, 451, 461). , 422, 452, 462) are charged; Alternatively, first, second, third, and fourth metal plates (410, 420, 450, and 460) of a certain thickness are provided on the pressing surfaces of each of the 3-1 to 3-4 pressing ends (381, 382, 385, and 386), , a plurality of first, 2, 3, and 4 grooves (411, 421, 451, 461) are formed in each of the first, 2, 3, and 4 metal plates (410, 420, 450, and 460), and the first, The 2nd, 3rd, and 4th grooves (411, 421, 451, and 461) may be filled with the first, 2nd, 3rd, and 4th friction reduction materials (412, 422, 452, and 462), respectively.

In the present invention, in removing unnecessary portions of the bent edge formed along the edge of the cover, a punch provided in the mold operates from the inside to the outside of the cover or from the inner edge to the outer edge to remove each unnecessary portion of the bent edge. By proposing a configuration that sequentially removes the front and rear sides, left and right sides, and corners of the cover, the problem of parts built into the battery module being damaged due to burrs created during the removal process by the punch is eliminated. It can be prevented at the source.

1 is a schematic overall configuration diagram of the upper cover manufacturing equipment according to the present invention.
2A to 2B each show a schematic mold configuration of a cut portion in the upper cover manufacturing equipment according to the present invention.
Figure 2c is a schematic operational configuration diagram of the cutting part in the upper cover manufacturing equipment according to the present invention.
3A to 3B each show a schematic mold configuration of the first molding part in the upper cover manufacturing equipment according to the present invention.
Figure 3c is a schematic operational configuration diagram of the first forming part in the upper cover manufacturing equipment according to the present invention.
4A to 4B each show a schematic mold configuration of the first cutting portion in the upper cover manufacturing equipment according to the present invention.
Figure 4c is a schematic operational configuration diagram of the first cutting unit in the upper cover manufacturing equipment according to the present invention.
5A to 5B are schematic mold configuration diagrams of the second cutting portion in the upper cover manufacturing equipment according to the present invention.
Figure 5c is a schematic operational configuration diagram of the second cutting unit in the upper cover manufacturing equipment according to the present invention.
6A to 6B are schematic mold configuration diagrams of the third cutting portion in the upper cover manufacturing equipment according to the present invention.
Figure 6c is a schematic operational configuration diagram of the third cutting unit in the upper cover manufacturing equipment according to the present invention.
Figure 6d is a schematic configuration diagram showing the combination relationship between the movable end, fixed end, die, and punch in Figure 6a.
Figure 7a is another schematic configuration diagram of the movable stage in the upper cover manufacturing equipment according to the present invention.
Figure 7b is a schematic configuration diagram of a metal plate provided at the pressing end in the upper cover manufacturing equipment according to the present invention.
8A to 8B each show a schematic mold configuration of the second molding part in the upper cover manufacturing equipment according to the present invention.
Figure 8c is a schematic operational configuration diagram of the first forming part in the upper cover manufacturing equipment according to the present invention.
9A to 9E are schematic step diagrams showing the shape change from the unit steel plate to the upper cover by the upper cover manufacturing equipment according to the present invention.
Figure 10 is a schematic configuration diagram of a conventional cutting mold.

Preferred embodiments according to the present invention will be examined in detail with reference to the accompanying drawings as follows. In describing the embodiments of the present invention in detail, there is no direct relationship with the technical features of the present invention, or general knowledge in the technical field to which the present invention belongs. Detailed explanations will be omitted for matters that are obvious to those with knowledge.

The present invention is a manufacturing equipment for the upper cover of an electric vehicle battery module, and as shown in Figure 1, a supply part 10, a flat part 20, a cutting part 30, a first forming part 40, a cutting part, and a first forming part 40. 2. It has technical features including a forming part (50) and a washing part (60). Let’s look at each of these configurations in detail.

The supply unit 10 supplies the iron plate 1, and the iron plate 1 is preferably wound on a roll 11 and continuously supplied. Of course, the supplied steel plate 1 must be made of a product with a predetermined width in consideration of the intended size of the final upper cover.

The flat part 20 is a part that adjusts the flatness of the iron plate 1, and the flat part 20 is provided with a plurality of opposing flat rolls 21, which are made up of an upper and lower pair. Each of the flattening rolls 21 may be operated by a motor (not shown).

The cutting part 30 is a part that cuts the steel plate 1 supplied from the flat part 20 into unit steel plates 2 of a certain length, and includes the lower mold 31 as shown in Figure 2a and the cutting bar 36 as shown in Figure 2b. ) and an upper mold 35 provided with elastic means 37.

In this case, as shown in Figure 2c, when the iron plate 1 is supplied and placed on the upper surface of the lower mold 31, the upper mold 35 descends and comes into close contact with the lower mold 31, and in this state, the upper mold 35 When this elastic means (37) is compressed and further lowered, the steel plate (1) is cut by the cutting bar (36) and a unit steel plate (2) is created.

As shown in FIG. 9A, the unillustrated reference numeral 38 is a cutting blade for cutting the corners of the unit steel plate 2 having a right angle and angular shape, and the unillustrated reference numeral 33 is a guide end for the cutting blade 38. , unillustrated reference numeral 1′ indicates a portion cut by the cutting blade 38. That is, each time the cutting unit 20 operates, one unit steel plate 2 as shown in FIG. 9A is created.

The first molding part 40 is a part that manufactures the first upper cover 3 using the unit steel plate 2, and includes a lower mold 41 in which a seating plate 42 is provided as shown in Figure 3a and Figure 3b. It can be done by combining the pressure plate 46 and the upper mold 45 with the elastic means 43 as shown.

With this configuration, when the unit steel plate 2 is placed on the resting plate 42 of the lower mold 41, the upper mold 45 descends and the pressure plate 46 causes the lower mold 41 to rest on the resting plate 42. After being brought into close contact, when the upper mold 45 further descends while compressing the elastic means 43, the edge portion of the unit steel plate 2 placed on the seating plate 42 is formed by forming the upper mold 45 as shown in FIG. 3C. It is bent into a single shape (not shown).

An example of the first upper cover 3 made by the first forming part 40 is shown in FIG. 9B. That is, the edge of the unit steel plate 2 is bent downward through the first forming part 40, thereby creating a first upper cover 3 having a cover shape. At this time, the vertical height of the bent edge of the first upper cover 3 is h1, the length of the left and right sides 4 of the bent edge is L1, and the length of the side sides 5 before and after the bent edge is assumed to be L2.

The cutting part is a part that removes the excess portion of the bent end of the first upper cover (3). In the present invention, the cutting part is divided into first, second, and third cutting parts (100, 200, and 300), respectively, to form the first upper cover. We propose a method to remove the excess portion of the bent edge in (3).

First, the first cutting part 100 may be composed of a first lower mold 110 and a first upper mold 170. As shown in Figure 4a, the first lower mold 110 is provided with a first lower contact plate 111 on which the first upper cover 3 is placed on its upper surface, and other movable ends, fixed ends, elastic means, and punches. , each die is prepared.

The movable end is a part that slides in the left and right directions and operates the punch by each of the pressure end and elastic means, which will be described later, and includes the 1-1 and 1-2 movable ends (121 and 122) and the 1-3 and 1-4 movable ends. It consists of stages (125, 126).

Each of the 1-1 and 1-2 movable ends 121 and 122 is spaced forward at a predetermined distance from the left and right front ends of the first lower contact plate 111 and protrudes upward. The 1-3 and 1-4 movable stages 125 and 126 respectively face the 1-1 and 1-2 movable stages 121 and 122, and are located at the left rear end of the first lower contact plate 111, On each right side, it is spaced backwards at a certain distance and protrudes upward.

At this time, the pressure surfaces (not shown) of the 1-1, 1-2 movable stages (121, 122) and 1-3, 1-4 movable stages (125, 126) are inclined at a certain angle. It is desirable to make it happen. In this case, it goes without saying that the inclination direction of each pressing surface has a shape corresponding to the inclination direction of the pressing end, which will be described later.

The fixed end is a part that supports the elastic means when each movable end acts and compresses the elastic means to be described later, and includes the 1-1 and 1-2 fixed ends (131, 132) and the 1-3 and 1-4 fixed ends. It consists of stages (135, 136).

The 1-1 and 1-2 fixed stages (131 and 132) are provided in the first lower mold (110) at a certain distance to the left and right of the 1-1 and 1-2 movable stages (121 and 122), respectively. do. The 1-3, 1-4 fixed stages (135, 136) are located a certain distance to the left and right of the 1-3, 1-4 movable stages (125, 126) respectively. It faces each of the stages 125 and 126 and is provided in the first lower mold 110.

The elastic means is a part that provides restoring force to each movable end, and one end of each is fixedly coupled to the 1-1, 1-2, 1-3, and 1-4 movable ends (121, 122, 125, and 126), respectively. And each other end portion is fixed to the 1-1, 1-2, 1-3, and 1-4 fixed ends (131, 132, 135, 136), respectively. 3, 1-4 consists of elastic means (141, 142, 145, 146). Each of the elastic means may be made of a conventional coil spring.

The punch is a means of removing unnecessary excess parts from the left and right sides of the first upper cover 3, and includes the 1-1 punch 151 and the 1-2 cutter end, where the 1-1 cutter end 152 is provided. It consists of the first and second punches (155), in which (156) is provided.

The 1-1 punch 151 is located below the first lower contact plate 111, and its rear and front ends are fixedly coupled to the 1-1 and 1-3 movable ends 121 and 125, respectively. , a 1-1 cutter end 152 is provided at the left end. At this time, the length L2 of the 1-1 cutter end 152 is preferably smaller than the length L1 of the left side of the bent end 4 of the first upper cover 3.

The 1-2 punch 155 is also located below the first lower contact plate 111 and faces the 1-1 punch 151, and its rear and front ends are movable in 1-2 and 1-4, respectively. It is fixedly coupled to each of the stages 122 and 126, and a 1-2 cutter stage 156 is provided at the right end. At this time, the length L2 of the 1-2 cutter end 156 is the same as that of the 1-1 cutter end 152, and is preferably smaller than the length L1 of the right side of the bent end 4 of the first upper cover 3. do.

The die is a part corresponding to each of the cutter ends of the punch, and includes a 1-1 die 161 provided in the first lower mold 110 that faces the 1-1 cutter end 152 at a certain distance to the left, and It consists of a 1-2 die 166 provided in the first lower mold 110, which faces the 1-2 cutter end 155 at a certain distance to the right.

As shown in FIG. 4B, the first upper mold 170 is provided with a first upper contact plate 171 on its lower surface to face the first lower mold 110. At this time, the first upper mold 170 is provided with a pressure end corresponding to the movable end of the first lower mold 110.

The central portion of the pressure end faces the central portion between the 1-1 and 1-2 movable ends (121, 122) and protrudes downward at a certain distance forward from the center of the front end portion of the first upper contact plate (111). The formed 1-1 pressing end (181), and its central area faces the central area between the 1-3 and 1-4 movable ends (125, 126) and is located at the center of the rear end of the first upper contact plate (111). It consists of first and second pressure ends 185 that are spaced forward at a certain distance and protrude downward.

At this time, it is preferable that the pressure surfaces (not shown) of the 1-1st pressure end 181 and the 1-2nd pressure end 185 are inclined at a certain angle. In this case, the slope of each pressure surface The direction needs to be in a shape that corresponds to the inclination direction of the movable end described above.

Let's look at the schematic operating configuration of the first cutting unit 100. When the first upper cover 3 is placed on the first lower contact plate 111 of the first lower mold 110, the first upper mold 170 descends (see ① in FIG. 4C). As the first upper mold 170 is lowered, the 1-1st pressing stage 181 and the 1-2 pressing stage 185 move to the 1-1, 1-2 movable stages 121, 122 and 1-1, respectively. When in contact with each of the 3 and 1-4 movable stages (125 and 126), the 1-1 and 1-2 movable stages (121 and 122) and the 1-3 and 1-4 movable stages (125 and 126) respectively The 1-1, 1-2 elastic means (141, 142) and the 1-3, 1-4 elastic means (145, 146) are compressed and slid left and right (see Fig. 4a ②).

At this time, the 1-1 punch 151 and the 1-2 punch 155 each have 1-1, 1-3 movable stages 121, 125 and 1-2, 1-4 movable stages 122, 126) Since they are fixedly coupled to each, when each of the 1-1 and 1-2 movable stages (121 and 122) and the 1-3 and 1-4 movable stages (125 and 126) slides left and right, the first The 1-1 punch 151 provided with the -1 cutter end 152 and the 1-2 punch 155 provided with the 1-2 cutter end 156 each also slide left and right.

Thereafter, when the first upper mold 170 is lowered to the final point, the 1-1 cutter end 152 and the 1-1 provided in each of the 1-1 punch 151 and the 1-2 punch 155. The second cutter end (156) slides left and right to remove excess portions of the left and right side walls of the first upper cover (3) (see ③ in Figure 4c). Accordingly, the surplus portion L3 of the length L1 of the left and right side walls of the first upper cover 3 is naturally removed, and the first upper cover 3 changes to the shape shown in FIG. 9C.

Meanwhile, in the present invention, each of the 1-1 punch 151 and the 1-2 punch 155 operates from the inside to the outside while located below the first lower contact plate 111. Cutting work is also performed from the inside to the outside by each of the 1-1 cutter end 152 and the 1-2 cutter end 156. Because of this, the burrs generated during the cutting operation can be formed in the outer direction rather than the inner direction at the bent edge of the first upper cover 3.

Like the first cutting unit 100, the second cutting unit 200 may also be composed of a second lower mold 210 and a second upper mold 270. As shown in Figure 5a, the second lower mold 210 is provided with a second lower contact plate 211 on its upper surface on which the first upper cover 3 is placed, and other movable ends, fixed ends, support ends, and elastic Each means, punch, and die are prepared.

The movable end is a part that slides in the left and right directions by the pressurizing end and the elastic means respectively and operates the punch, and includes the 2-1 and 2-2 movable ends (221, 222) and the 2-3 and 2-4 movable ends ( 225, 226).

Each of the 2-1 and 2-2 movable ends 221 and 222 is formed to protrude upward at a predetermined distance to the left before and after the left end of the second lower contact plate 211, respectively. The 2-3 and 2-4 movable stages 225 and 226 each face the 2-1 and 2-2 movable stages 221 and 222, respectively, and are located in front of the right end of the first lower contact plate 111. , and are then formed to protrude upward at regular intervals to the right of each. That is, there is a difference in that the movable end of the second cutting unit 200 is arranged on the left and right sides of the second lower mold 210, unlike the movable end of the first cutting unit 100.

At this time, like the 1-1 and 1-2 operation stages (121 and 122) and the 1-3 and 1-4 operation stages (125 and 126), respectively, the 2-1 and 2-2 operation stages (221, 222) and the 2-3 and 2-4 movable stages 225 and 226, respectively, it is preferable that the pressure surfaces (not shown) are inclined at a certain angle.

The fixed end is a part that supports the elastic means and consists of the 2-1st and 2-2nd fixed ends (231, 232) and the 2-3rd and 2-4th fixed ends (235, 236). The 2-1 and 2-2 fixed stages (231 and 232) are provided in the second lower mold (210) at a certain distance in front of the 2-1 and 2-2 movable stages (221 and 222), respectively. The 2-3 and 2-4 fixed stages 235 and 236, respectively, are provided in the second lower mold 210 at a certain distance behind the 2-3 and 2-4 movable stages 225 and 226, respectively.

The support end is a part that guides the downward movement of the pressure end when the pressure end acts, which will be described later, and includes the 2-1 and 2-2 support ends (233, 234) and the 2-3 and 2-4 support ends (237, 238). The 2-1 and 2-2 support stages 233 and 234 are provided in the second lower mold 210 at a certain distance behind the 2-1 and 2-2 movable stages 221 and 222, respectively. The 2-3 and 2-4 support stages 237 and 238 are provided in the second lower mold 210 at a certain distance in front of the 2-3 and 2-4 movable stages 225 and 226, respectively.

The elastic means is a part that provides restoring force to each movable end, and one end of each is fixedly coupled to the 2-1st, 2-2, 2-3, and 2-4 movable ends (221, 222, 225, and 226), respectively. And each other end portion is fixed to the 2-1, 2-2, 2-3, and 2-4 fixed ends (231, 232, 235, 236), respectively. 3, consists of 2-4 elastic means (241, 242, 245, 246). Each of the elastic means may be made of a conventional coil spring.

The punch is a means of removing unnecessary excess parts from the front and rear sides of the first upper cover 3, and includes the 2-1 punch 251 and the 2-2 cutter end, where the 2-1 cutter end 252 is provided. It consists of a 2-2 punch (255) in which (256) is prepared.

The 2-1 punch 251 is located below the second lower contact plate 211, and its left and right ends are fixed to the 2-1 and 2-3 movable ends 221 and 225, respectively. It is combined, and a 2-1 cutter end 252 is provided at the front end portion. At this time, the length L4 of the 2-1 cutter end 252 is preferably smaller than the length L2 of the front side of the bent end 4 of the first upper cover 3.

The 2-2 punch 255 is also located below the second lower contact plate 211 and faces the 2-1 punch 251, and its left and right ends are 2-2 and 2-, respectively. It is fixedly coupled to each of the four movable ends (222, 226), and a 2-2 cutter end (256) is provided at the rear end. At this time, the length L4 of the 2-2 cutter end 256 is the same as that of the 2-1 cutter end 252, and is preferably smaller than the length L2 of the rear side of the bent end 4 of the first upper cover 3. do.

The die is a part corresponding to each of the cutter ends of the punch, and includes a 2-1 die 261 provided in the second lower plate mold 210, which faces the 2-1 cutter end 252 at a certain distance in front, and It consists of a 2-2 die 266 provided in the second lower plate mold 210, which faces the 2-2 cutter stage 255 and is spaced at a certain distance behind it.

As shown in FIG. 5B, the second upper mold 270 is provided with a second upper contact plate 271 on its lower surface to face the second lower mold 210. At this time, the second upper mold 270 includes the 2-1st and 2-3 movable stages 221 and 225 and the 2-2 and 2-4 movable stages 222 and 226 of the second lower mold 210, respectively. Corresponding 2-1, 2-3 pressure stages (281, 285) and 2-2, 2-4 pressure stages (282, 286) are provided.

The 2-1 and 2-3 pressurized ends (281, 285) each have a central portion including the 2-1 movable end (221), the 2-1 support end (233), and the 2-3 movable end (225). ) and the central portion between the second and third support ends (237), and are formed to protrude downward at regular intervals in the front and rear from the center of the right end portion of the second upper contact plate (271).

In addition, the 2-2 and 2-4 pressure ends (282, 286) each have a central portion including the 2-2 movable end (222), the 2-2 support end (234), and the 2-4 movable end. It faces the central portion between each of (226) and the second-fourth support ends (238), and protrudes downward at regular intervals in the front and rear from the center of the left end portion of the second upper contact plate (271).

At this time, the pressure surfaces (not shown) of the 2-1st, 2-3 pressure ends (281, 285) and 2-2, 2-4 pressure ends (282, 286) are inclined at a certain angle. It is preferable that it is made of, and in this case, it is obvious that the inclination direction of each pressing surface needs to be formed in a shape corresponding to the inclination direction of each of the above-described movable ends.

Let's look at the schematic operation of the second cutting unit 100 with this configuration. When the first upper cover 3 is placed on the second lower contact plate 211 of the second lower mold 210, the second upper mold 270 is lowered (see ① in FIG. 5C). The first upper cover 3 placed on the second lower adhesion plate 211 has excess portions of the left and right side walls removed, as shown in FIG. 9C.

As the second upper mold 270 descends, the 2-1 and 2-3 pressure stages 281 and 285 and the 2-2 and 2-4 pressure stages 282 and 286 respectively press the 2-1 and 2- While being guided by the 3 support stages (233, 237) and the 2-2 and 2-4 support stages (234, 238), the 2-1, 2-3 movable stages (221, 225) and 2-2, 2 -When in contact with each of the 4 movable stages (222, 226), the 2-1st, 2-3 movable stages (221, 225) and the 2-2, 2-4 movable stages (222, 226) each contact the 2- The 1st, 2-3 elastic means (241, 245) and the 2-2, 2-4 elastic means (242, 246) are compressed and slid in the front-back direction (see Fig. 5a ②).

At this time, the 2-1 punch 251 and the 2-2 punch 255 each have a 2-1, 2-2 movable stage (221, 222) and a 2-3, 2-4 movable stage (225, 226) Since they are fixedly coupled to each, when the 2-1st and 2-2 movable stages (221, 222) and the 2-3 and 2-4 movable stages (225, 226) each slide in the forward and backward directions, the first The 2-1 punch 251 provided with the 2-1 cutter end 252 and the 2-2 punch 255 provided with the 2-2 cutter end 256 also slide in the front-back direction.

Thereafter, when the second upper mold 270 is lowered to the final point, the 2-1 cutter end 252 and the 2-1 provided in each of the 2-1 punch 251 and the 2-2 punch 255. The second cutter end (256) slides in the front and rear direction to remove the excess portion of the front and rear side walls of the second upper cover (3) (see ③ in Figure 5c). Accordingly, the surplus portion L4 of the length L2 of the front and rear side walls of the first upper cover 3 is naturally removed, and the first upper cover 3 changes to the shape shown in FIG. 9D.

In the same way as the first cutting unit 100, each of the 2-1 punch 251 and the 2-2 punch 255 operates from the inside to the outside while located below the second lower contact plate 211. Because of this, cutting work is also performed from the inside to the outside by each of the 2-1st cutter stage 252 and the 2-2nd cutter stage 256. Accordingly, burrs generated during the cutting operation on the front and rear side walls of the first upper cover 3 by the second cutting unit 200 are naturally formed in the outer direction rather than the inner direction.

The third cutting unit 300 may also be composed of a third lower mold 310 and a third upper mold 370, in much the same way as the first and second cutting units 100 and 200, respectively. As shown in FIG. 6A, the third lower mold 310 is provided with a third lower contact plate 311 on which the first upper cover 3 is placed on its upper surface, and other movable ends, fixed ends, elastic means, and punches. , each die is prepared.

The movable end is a part that slides diagonally and operates the punch by the pressure end and elastic means, respectively, and is the 3-1, 3-2, 3-3, and 3-4 movable end (321, 322, 325, 326) It consists of, and each of these is formed to protrude upward at regular intervals in an outer radial manner from each corner of the third lower contact plate 311. At this time, the movable end of the third cutting unit 300 is different from the movable end of the first and second cutting units 100 and 200 in that it is arranged diagonally at the edge of the third lower mold 310. .

The fixed end is a part that supports the elastic means and consists of the 3-1, 3-2, 3-3, and 3-4 fixed ends (331, 332, 335, and 336), each of which is 3-1, The 3-2, 3-3, and 3-4 movable stages 321, 322, 325, and 326 are provided in the third lower mold 310 at a certain distance radially away from each other.

The elastic means is a part that provides restoring force to each movable end, and one end of each is fixedly coupled to the 3-1, 3-2, 3-3, and 3-4 movable ends (321, 322, 325, and 326), respectively. And each other end portion is fixedly coupled to the 3-1, 3-2, 3-3, and 3-4 fixed ends (331, 332, 335, and 336), respectively. Each of the elastic means may be made of a conventional coil spring.

The punch is a means for removing unnecessary parts of the left and right side walls and the front and rear side walls of the first upper cover 3 by the first and second cutting parts 100 and 200, respectively, and then removing the remaining parts of the corners. In this way, the 3-1, 3-2, 3-3, and 3-4 punches are provided with the 3-1, 3-2, 3-3, and 3-4 cutter stages (352, 354, 356, and 358), respectively. It consists of (351, 353, 355, 357).

The lower part of each of the 3-1, 3-2, 3-3, and 3-4 punches (351, 353, 355, and 357) has the 3-1, 3-2, 3-3, and 3-4 movable ends ( 321, 322, 325, 326) are fixedly coupled to the upper surface of each front part, and each of the 3-1, 3-2, 3-3, and 3-4 cutter ends (352, 354, 356, 358) is connected to the 3- 1, 3-2, 3-3, and 3-4 punches (351, 353, 355, 357) are provided on the upper portion of each. At this time, each of the 3-1, 3-2, 3-3, and 3-4 cutter ends (352, 354, 356, and 358) corresponds to the shape of the corner of the bent end (4) of the first upper cover (3). It is preferable that it consists of a composition.

The die is a part corresponding to each of the cutter ends of the punch, and is radially spaced at regular intervals on the outer side of each of the 3-1, 3-2, 3-3, and 3-4 cutter ends (352, 354, 356, and 358). However, 3-1, 3-2, 3-3, and 3-4 punches (351, 353, 355, 357) correspond to each shape and are provided in the third lower mold (310). It consists of -2, 3-3, and 3-4 dies (361, 362, 365, 366).

At this time, in the present invention, as shown in Figure 6a, each of the 3-1, 3-2, 3-3, and 3-4 cutter stages (352, 354, 356, and 358) has an internal included angle of 90°. It protrudes convexly in a ∧ shape, and each of the 3-1, 3-2, 3-3, and 3-4 dies (361, 362, 365, 366) has an internal included angle of 90° and is concavely recessed in a ∨ shape. Suggest a case where this is possible. In this case, the remaining edge portion of the first upper cover 3 can be removed more completely and cleanly.

Meanwhile, the present invention does not exclude the case where each of the movable end, punch, and die in the third cutting unit 300 is configured as shown in FIG. 6D. In other words, this is a case where the movable end and the punch form an integrated structure, and the die is made up of a separate structure. This will be looked at in detail.

First, each of the 3-1, 3-2, 3-3, and 3-4 movable stages 321, 322, 325, and 326 is a first moving stage that slides in the front-back direction with respect to the upper surface of the third lower mold 310. , 2, 3, and 4 plates (391, 392, 395, 396) are provided at the rear of each upper surface. For diagonal sliding of the first, second, third, and fourth plates (391, 392, 395, and 396), a pair is provided on the left and right sides of each of the first, second, third, and fourth plates (391, 392, 395, and 396). It is desirable to provide a guide wall (not shown).

And, the 3-1, 3-2, 3-3, and 3-4 punches (351, 353, 355, 357) each have the 3-1, 3-2, 3-3, and 3-4 movable group (321) , 322, 325, and 326) and are provided on the front portion of the upper surface of each of the first, second, third, and fourth plates (391, 392, 395, and 396). Accordingly, the 3-1, 3-2, 3-3, and 3-4 punches (351, 353, 355, and 357) and the 3-1, 3-2, 3-3, and 3-4 movable groups ( 321, 322, 325, 326) Each maintains a certain interval.

Finally, the lower portions of each of the 3-1, 3-2, 3-3, and 3-4 dies (361, 362, 365, and 366) are fixedly coupled to the upper surface of the third lower mold 310, The upper part includes the 3-1, 3-2, 3-3, and 3-4 movable groups (321, 322, 325, and 326), respectively, and the 3-1, 3-2, 3-3, and 3-4 movable groups. It protrudes vertically upward and is exposed through through-holes 392, 394, 396, and 398 formed between the stages 321, 322, 325, and 326, respectively.

At this time, the rear portion of each of the 3-1, 3-2, 3-3, and 3-4 dies (361, 362, 365, and 366) is formed by the 3-1, 3-2, 3-3, and 3-4 punches. (351, 353, 355, 357) It is located at a certain distance from each front part by △t. In this case, when the pressurizing end acts and pushes the movable end diagonally backward, the punch also slides diagonally backward along with the movable end, and the gap △t between the cutter end of the punch and the die gradually narrows, and finally the first upper cover (3 )'s remaining edges are removed by the cutter end of the punch.

As shown in FIG. 6B, the third upper mold 370 is provided with a third upper contact plate 371 on its lower surface to face the third lower mold 310. At this time, the third upper mold 370 has a third movable stage corresponding to each of the 3-1, 3-2, 3-3, and 3-4 movable stages 321, 322, 325, and 326 of the third lower mold 310. Pressure stages 3-1, 3-2, 3-3, and 3-4 are provided (381, 382, 385, 386).

These 3-1, 3-2, 3-3, and 3-4 pressurized ends (381, 382, 385, 386) have their central regions 3-1, 3-2, 3-3, and 3-4. It faces each of the stages 321, 322, 325, and 326 and protrudes downward at regular intervals radially on the outer side of the third upper contact plate 371. In each of the 3-1, 3-2, 3-3, and 3-4 pressure ends (381, 382, 385, and 386), the pressure surface (not shown) is preferably inclined at a certain angle, In this case, the inclination direction of each pressing surface needs to be formed in a shape corresponding to the inclination direction of each of the movable ends described above.

The schematic operation of the second cutting unit 100 of this configuration is as follows. First, the first upper cover 3 is placed on the third lower contact plate 311 of the third lower mold 310. The first upper cover 3 placed on the third lower adhesion plate 311 has the excess portion removed from the left and right side walls and the front and rear side walls, as shown in FIG. 9D, and the excess portion remains only at the corners.

When the first upper cover 3 is placed, the third upper mold 370 descends (see ① in FIG. 6C). As the third upper mold (370) is lowered, the 3-1, 3-2, 3-3, and 3-4 pressure ends (381, 382, 385, 386) are respectively 3-1, 3-2, and 3- When in contact with each of the 3 and 3-4 operation groups (321, 322, 325, and 326), each of the 3-1, 3-2, 3-3, and 3-4 operation groups (321, 322, 325, and 326) Each of the 3-1, 3-2, 3-3, and 3-4 elastic means (341, 342, 345, and 346) is compressed and slides diagonally to retreat (see Fig. 6a ②).

At this time, the 3-1, 3-2, 3-3, and 3-4 punches (351, 353, 355, and 357) each have the 3-1, 3-2, 3-3, and 3-4 movable stages (321) , 322, 325, and 326), so when each of the 3-1, 3-2, 3-3, and 3-4 movable stages (321, 322, 325, and 326) slides and retreats in the diagonal direction, The 3-1, 3-2, 3-3, and 3-4 punches (351, 353, 355, and 357) also slide diagonally and retreat.

Afterwards, when the third upper mold 370 is lowered to the final point, each of the 3-1, 3-2, 3-3, and 3-4 punches 351, 353, 355, and 357 slides in the diagonal direction and further Retreat, and accordingly, 3-1, 3-2, 3-3, 3- provided in each of the 3-1, 3-2, 3-3, and 3-4 punches (351, 353, 355, 357). Each of the four cutter stages (352, 354, 356, and 358) removes the excess portion remaining at the corner of the second upper cover (3) (see ③ in Figure 6c), and finally, the first upper cover (3) is It changes to the shape of the second upper cover 7 as shown in Figure 9e.

In this way, when passing through the first, second, and third cutting parts (100, 200, and 300), in the case of the first upper cover (3), the vertical height of the bent edge, the left and right side walls of the bent edge, and the side walls before and after the bent edge are h1, L1, Although it was L2, the vertical height of the bent edge, the left and right side walls of the bent edge, and the side walls before and after the bent edge of the second upper cover (7) are h2 (h2 < h1), L1, and L2, respectively, and the surplus portion of the bent edge is completely removed.

And, in the case of the third cutting unit 300, the same as the first and second cutting units 100 and 200, respectively, the 3-1, 3-2, 3-3, and 3-4 punches 351, 353, 355, 357) Since each operates in the direction from the inner edge to the outer edge in the third lower mold 310, the 3-1, 3-2, 3-3, and 3-4 cutter stages (352, 354, 356) , 358) The cutting work by each is also performed in the direction from the inner edge to the outer edge, and accordingly, the burr generated during the cutting work on the corner portion of the first upper cover 3 by the third cutting unit 300 is inside. It is formed in an outward direction, not in the direction.

Meanwhile, in the case of the present invention, the cutting operation in each of the first, second, and third cutting parts (100, 200, and 300) is accomplished through the interaction between the pressing end and the movable end. The upper mold descends and the pressing end strongly contacts the movable end. It adheres closely and causes significant friction during the process of pressing. Therefore, if the first, second, and third cutting units (100, 200, and 300) are repeatedly operated for a long time, the wear of the pressure surface of the pressure end and the pressure surface of the movable end may increase.

To this end, the present invention is a pressure surface of each of the 1-1 to 3-4 movable stages (121, 122, 125, 126, 221, 222, 225, 226, 321, 322, 325, 326) as shown in Figure 7a. It does not exclude the case of using it by filling it with a friction reducing material or by adding a separate metal plate filled with a friction reducing material as shown in Figure 7b.

The former has a plurality of first, second, and 3 and 4 grooves (411, 421, 451, 461) are formed, and the first, 2, 3, and 4 friction reducing materials ( 412, 422, 452, 462) is charged.

In addition, the latter has first, second, and third pressure surfaces of the 3-1 to 3-4 pressure stages (181, 185, 281, 282, 285, 286, 381, 382, 385, and 386), each having a certain thickness. , the four metal plates 410, 420, 450, and 460 are fixedly coupled (see FIG. 6c), and each of the first, second, third, and fourth metal plates (410, 420, 450, and 460) has a plurality of first, second, and After forming the 3rd and 4th grooves (411, 421, 451, 461), the 1st, 2nd, 3rd, and 4th friction reducing materials ( 412, 422, 452, 462) is charged.

The first, second, third, and fourth metal plates (410, 420, 450, and 460) are connected to the third-1 to 3-4 pressing stages (181, 185, 281, 282, 285, 286, 381, 382, 385, 386). It can be made of any of the same or different materials, and the first, second, third, and fourth friction reducing materials (412, 422, 452, and 462) can reduce the friction force or frictional heat generated during the adhesion and pressing process to a certain extent. It may be made of a material such as graphite. In this case, even if each cutting part is repeatedly operated for a long time, the wear of the press surfaces of each press end and movable end can be significantly reduced.

The second forming part 50 is a part for re-molding the second upper cover 7 from which the excess portion has been removed through the cutting part sequentially, and is substantially the same as the above-described first forming part 40, as shown in Figure 8a. It can be done by combining the lower mold 51 on which the holding plate 52 is provided, and the upper mold 55 on which the adhesion plate 56 and elastic means are provided as shown in FIG. 8B.

That is, when the second upper cover 7 from which the excess portion has been removed is placed on the mounting plate 52 of the lower mold 51, the upper mold 55 is lowered and the contact plate 56 is attached to the lower mold 51. When the upper mold (55) is in close contact with the mounting plate (52) and further lowers by compressing the elastic means, the bent end portions (8, 9) of the second upper cover (7) placed on the mounting plate (52) are respectively is bent into the shape of the molded end (not shown) of the upper mold 55, as shown in Figure 8c.

In the present invention, since each punch of the first, second, and third cutting parts (100, 200, and 300) operates from the inside to the outside or from the inside edge to the outside edge, the cutting process for the first upper cover (3) The direction of the burr generated is outward. In this case, if re-molding is performed using the second forming unit 50 as in the present invention, structural deformation in a specific area that occurs during the cutting process for the first upper cover 3 can be corrected. In addition, it is possible to more completely trim the outward burrs created in the second upper cover 7 within the intended range.

The cleaning part 60 is a part that cleans the second upper cover 7 on which the re-molding work has been completed, and includes the flat part 20, the cut part 30, the first forming part 40, and the first, second, and third cuts. Contaminants adhering to the surface of the upper cover are removed while passing through each of the parts 100, 200, and 300 and the second molding part 50. The unexplained reference numeral 61 is a conveyor, and the unexplained reference numeral 62 is a spray pipe that sprays a cleaning liquid such as water.

Although not shown in the drawing, a film removal unit may be added between the second forming unit 50 and the cleaning unit 60 to remove the protective film attached to the surface of the steel plate 1, and the cleaning unit may be added. On the other side of the unit 60, an inspection unit may be further installed to inspect the condition of the second upper cover 7 after cleaning.

Although the description above is limited to preferred embodiments of the present invention, this is only an example, and the present invention is not limited thereto and can be modified and implemented in various ways, and further, separate technical features are provided based on the disclosed technical idea. It is obvious that it can be added and implemented.

10: supply part 20: flat part
30: cutting part 40: first forming part
50: second forming part 60: washing part
100: first cutting part 110: first lower mold
170: first upper mold 200: second cutting part
210: 2nd lower mold 270: 2nd upper mold
300: Third cutting part 310: Third lower mold
370: Third upper mold

Claims (4)

A supply unit 10 for supplying the steel plate 1 wound on a roll, a flattening unit 20 for flattening the steel plate 1 supplied from the supply unit 10, and a unit steel plate 2 of a certain length for flattening the flattened steel plate 1. ), the cutting part 30 for cutting, the first forming part 40 for manufacturing the first upper cover 3 by bending the edge of the cut unit steel plate 2, and the bent end of the first upper cover 3 A cutting unit for manufacturing the second upper cover 7 by removing the excess portion, a second forming portion 50 for re-molding the second upper cover 7 from which the excess portion of the bent end has been removed, and a re-molded first cover 7. 2. Equipment for manufacturing the upper cover of an electric vehicle battery module including a cleaning unit (60) for cleaning the upper cover (7),
The cutting part is divided into first, second, and third cutting parts (100, 200, and 300),
The first cutting part 100,
A first lower mold 110 provided with a first lower contact plate 111 on the upper surface;
A first upper mold 170 having a first upper contact plate 171 on the lower surface facing the first lower mold 110;
The 1-1 and 1-2 movable ends (121, 122) and the first lower contact plate (111) are spaced forward at a certain distance from the left and right sides of the front end portion of the first lower contact plate (111) and protrude upward. ) is spaced rearward at a certain distance from the left and right sides of the rear end portion and protrudes upward, and the 1-3 and 1-4 movable stages (1-3 and 1-4) are formed opposite the 1-1 and 1-2 movable stages (121 and 122), respectively. 125, 126);
The 1-1 and 1-2 fixed stages (131 and 132) are provided in the first lower mold (110) at a certain distance to the left and right of the 1-1 and 1-2 movable stages (121 and 122), respectively. It is located at a certain distance to the left and right of the 1-3 and 1-4 movable stages (125, 126), faces the 1-3 and 1-4 movable stages (125, 126), and is provided in the first lower mold (110). 1-3, 1-4 fixed stages (135, 136);
One end of each is fixedly coupled to the 1-1, 1-2, 1-3, and 1-4 movable ends (121, 122, 125, 126), and the other end of each is fixed to the 1-1, 1-4 movable ends (121, 122, 125, 126). 1-1, 1-2, 1-3, and 1-4 elastic means (141, 142, 145, 146);
The rear end portion and the front end portion are respectively fixedly coupled to the 1-1 and 1-3 movable ends (121, 125), and the left end has a length L2 that is smaller than the length L1 of the left side of the bent end of the first upper cover (3). The 1-1 cutter end 152 is provided, and the 1-1 punch 151 located at the bottom of the first lower contact plate 111, the rear end portion and the front end portion respectively have 1-2 and 1-4 movable stages ( 122, 126), and a 1-2 cutter end 156 is provided at the right end and has a length L3 smaller than the length L1 of the right side of the bent end of the first upper cover 3, so that the 1-1 punch 151 ) and a 1-2 punch (155) located below the first lower contact plate (111);
The 1-1 die 161 provided in the first lower mold 110 is spaced at a certain distance to the left of the 1-1 cutter end 152, and is spaced at a certain distance to the right of the 1-2 cutter end 155. 1-2 dies 166 facing each other and provided in the first lower mold 110;
The central portion faces the central portion between the 1-1 and 1-2 movable ends (121, 122) and the first portion is spaced forward at a certain distance from the center of the front end portion of the first upper contact plate (111) and protrudes downward. -1 pressurizing end (181), the central part faces the central part between the 1-3 and 1-4 movable stages (125, 126), and is spaced at a certain distance forward from the center of the rear end of the first upper contact plate (111) It consists of first and second pressure ends 185 that protrude downward;
The second cutting part 200,
A second lower mold 210 provided with a second lower contact plate 211 on the upper surface;
A second upper mold 270 with a second upper contact plate 271 on the lower surface facing the second lower mold 210;
The 2-1 and 2-2 movable ends (221, 222) and the first lower contact plate ( 111), the 2-3 and 2-4 movable parts are formed to protrude upward at a certain distance from the front and rear of the right end, respectively, and face the 2-1 and 2-2 movable ends (221 and 222), respectively. Dan (225, 226);
The 2-1 and 2-2 fixed stages (231 and 232) are provided in the second lower mold (210) at a certain distance in front of each of the 2-1 and 2-2 movable stages (221 and 222). -2-3, 2-4 fixed stages (235, 236) provided in the second lower mold 210 at a certain distance behind each of the 3, 2-4 movable stages (225, 226);
The 2-1 and 2-2 support stages (233, 234), which are provided in the second lower mold (210) at a certain distance to the rear of each of the 2-1 and 2-2 movable stages (221 and 222). -3, 2-4 movable stages (225, 226) 2-3, 2-4 support stages (237, 238) provided in the second lower mold (210) at a certain distance in front of each;
One end of each is fixedly coupled to the 2-1, 2-2, 2-3, and 2-4 movable ends (221, 222, 225, 226), respectively, and the other end of each is fixed to the 2-1, 2- 2-1, 2-2, 2-3, 2-4 elastic means (241, 242, 245, 246);
The left end and right end are respectively fixedly coupled to the 2-1 and 2-3 movable ends (221, 225), and the front end has a length L4 that is smaller than the length L2 of the front side of the bent end of the first upper cover (3). A 2-1 cutter end 252 is provided, and the 2-1 punch 251 located below the second lower contact plate 211, the left end portion and the right end portion, respectively, are 2-2, 2- A 2-2 cutter end 256 is fixedly coupled to each of the 4 movable ends 222 and 226 and has a length L4 smaller than the length L3 of the rear side of the bent end of the first upper cover 3 at the rear end. A 2-2 punch (255) facing the first punch (251) and located below the second lower contact plate (211);
The 2-1 die 261 is spaced in front of the 2-1 cutter stage 252 and faces the 2-1 die 261, which is provided in the second lower mold 210, and is spaced at a certain distance behind the 2-2 cutter stage 255. A 2-2 die 266 opposed to the second die 266 and provided in the second lower mold 210;
Each central portion faces the central portion between the 2-1 movable end (221) and the 2-1 support end (233) and the 2-3 movable end (225) and the 2-3 support end (237). And the 2-1 and 2-3 pressure ends (281, 285) are formed to protrude downward at regular intervals in the front and rear, respectively, from the center of the right end of the second upper contact plate (271), and the central portion of each is It faces the central portion between the 2-2 movable end (222) and the 2-2 support end (234) and the 2-4 movable end (226) and the 2-4 support end (238) and is in close contact with the second upper part. It consists of 2-2 and 2-4 pressure ends 282 and 286 that are spaced apart from the center of the left end of the plate 271 at regular intervals in the front and rear, respectively, and protrude downward;
The third cutting part 300,
A third lower mold 310 provided with a third lower contact plate 311 on the upper surface;
A third upper mold 370 having a third upper contact plate 371 on the lower surface facing the third lower mold 310;
The 3-1, 3-2, 3-3, and 3-4 movable ends (321, 322, 325, 326);
3-1, 3-2, 3-3, and 3-4 movable stages 321, 322, 325, and 326, respectively, are provided in the third lower mold 310 at a certain distance radially away from each other, 3-2, 3-3, 3-4 fixed ends (331, 332, 335, 336);
One end of each is fixedly coupled to the 3-1, 3-2, 3-3, and 3-4 movable ends (321, 322, 325, 326), respectively, and the other end of each is fixed to the 3-1, 3- 3-1, 3-2, 3-3, and 3-4 elastic means (341, 342, 345, 346);
The lower part is fixedly coupled to the upper surface of the front part of each of the 3-1, 3-2, 3-3, and 3-4 movable stages (321, 322, 325, 326), and the first upper cover (3) is located on the upper part. 3-1, 3-2, and 3, where the 3-1, 3-2, 3-3, and 3-4 cutter ends (352, 354, 356, and 358) corresponding to the shapes of the bent edge corners are provided, respectively. -3, 3-4 punches (351, 353, 355, 357);
The 3-1, 3-2, 3-3, and 3-4 cutter stages (352, 354, 356, 358) are radially spaced apart from each other at regular intervals and face each other. 3, 3-4 punches (351, 353, 355, 357) correspond to the respective shapes and 3-1, 3-2, 3-3, and 3-4 dies (361) provided in the third lower mold (310). , 362, 365, 366);
The central portion faces each of the 3-1, 3-2, 3-3, and 3-4 movable stages (321, 322, 325, 326) and is spaced at regular intervals radially to the outside of the third upper contact plate (371). Consisting of 3-1, 3-2, 3-3, and 3-4 pressure ends (381, 382, 385, 386) protruding downward; Top cover manufacturing equipment for electric vehicle battery modules, characterized in that. According to paragraph 1,
Each of the 3-1, 3-2, 3-3, and 3-4 cutter ends (352, 354, 356, 358) has an internal included angle of 90° and protrudes convexly in a ∧ shape, and the 3- The upper part of the electric vehicle battery module, where each of the 1, 3-2, 3-3, and 3-4 dies (361, 362, 365, and 366) has an internal angle of 90° and is concavely recessed in a ∨ shape. Cover manufacturing equipment. According to paragraph 1,
The 3-1, 3-2, 3-3, and 3-4 movable stages (321, 322, 325, and 326) each have first and second sliding diagonally with respect to the upper surface of the third lower mold (310). , 3, and 4 plates (391, 392, 395, and 396) are provided at the upper rear portion of each; The 3-1, 3-2, 3-3, and 3-4 punches (351, 353, 355, and 357) each have the 3-1, 3-2, 3-3, and 3-4 movable stages (321). , 322, 325, and 326) and are provided on the front portion of the upper surface of each of the first, second, third, and fourth plates (391, 392, 395, and 396); The lower portions of each of the 3-1, 3-2, 3-3, and 3-4 dies (361, 362, 365, and 366) are fixedly coupled to the upper surface of the third lower mold 310, and the upper portion is fixed to the upper surface of the third lower mold 310. is the 3-1, 3-2, 3-3, 3-4 operation group (321, 322, 325, 326) respectively and the 3-1, 3-2, 3-3, 3-4 operation group (321, 322, 325, 326) and are exposed and protrude vertically upward through the through holes (392, 394, 396, 398) formed between them, respectively, 3-1, 3-2, 3-3, 3- The rear portion of each of the 4 dies (361, 362, 365, 366) is spaced at a certain distance from the front portion of each of the 3-1, 3-2, 3-3, and 3-4 punches (351, 353, 355, 357). is located; Top cover manufacturing equipment for electric vehicle battery modules, characterized in that. According to paragraph 1,
Each of the 1-1st to 3rd-4th operation stages (121, 122, 125, 126, 221, 222, 225, 226, 321, 322, 325, 326) has a plurality of first, second, and third pressure surfaces. , 4 grooves (411, 421, 451, 461) are formed, and the first, 2, 3, and 4 friction reducing materials (412) are formed in each of the first, 2, 3, and 4 grooves (411, 421, 451, 461). , 422, 452, 462) are charged; Alternatively, first, second, third, and fourth metal plates (410, 420, 450, and 460) of a certain thickness are provided on the pressing surfaces of each of the 3-1 to 3-4 pressing ends (381, 382, 385, and 386), , a plurality of first, 2, 3, and 4 grooves (411, 421, 451, 461) are formed in each of the first, 2, 3, and 4 metal plates (410, 420, 450, and 460), and the first, 2, 3, and 4 grooves (411, 421, 451, and 461) are respectively filled with first, 2, 3, and 4 friction reduction materials (412, 422, 452, and 462); Top cover manufacturing equipment for electric vehicle battery modules, characterized in that.

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