KR20030086069A - Folding apparatus for pouch type secondary battery - Google Patents

Abstract

PURPOSE: Provided is a folding unit for a pouch type secondary battery, which can two-stage-fold the both outer parts of the pouch type secondary battery automatically, therefore can prevent the damage of the battery and the apparent inferiority of the battery and improve working efficiency. CONSTITUTION: The folding unit(200) contains: a frame(211); a lifting unit(220) mounted on the upper side of the frame(211); a base(212) mounted on the lower side of the frame(211); an upper mold assembly(230) capable of lifting movement by connection with the lifting unit(220); a lower mold assembly(240) mounted on the base(212) and correspondent to the upper mold assembly(230), which can fold the both outer parts of the battery at a fixed angle when the upper mold assembly(230) descends. And the lifting unit(220) contains: a guide rail(221) mounted vertically to the frame(211); a bracket(222) guided by the guide rail(221); a placing frame(223) on which the upper mold assembly(230) is placed, which is coupled with the bracket(222); a lifting driving means(224) lifting the upper mold assembly(230), which is mounted on the upper part of the placing frame(223).

Description

Folding device for pouch type secondary battery

The present invention relates to a pouch type secondary battery, and more particularly, to a folding device for a pouch type secondary battery capable of automatically folding two-stage outer portion of the secondary battery.

In recent years, with the rapid development of the electric, electronic, communication and computer industries, the demand for high performance and high safety batteries is gradually increasing. In particular, as the miniaturization, thinning, and lightening of electronic devices are rapidly spreading, the miniaturization of batteries is therefore accompanied. The demand for thinning is increasing day by day. In order to meet these demands, a lithium secondary battery having a high energy density has been most interested in recent years.

In such a secondary battery, a metal can has been generally used as a packaging material for sealing the electrode assembly. However, in recent years, the use of pouch (Pouch) as the exterior material has been in the spotlight, the use of the pouch, the higher the energy density per unit weight and volume, the thinner and lighter the battery is possible, the less material cost of the exterior material There are many advantages.

1 illustrates a conventional pouch type secondary battery.

Referring to the drawings, the pouch type secondary battery includes an electrode assembly 11 having a structure in which a positive electrode plate filled with an electrode active material, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate are stacked. In addition, a positive electrode tab 12a is formed at one side of the positive electrode plate, and a negative electrode tab 13a is formed at one side of the negative electrode plate. The tabs 12a and 13a are connected to an external circuit by connecting to the leads 14 and 15, respectively. This electrode assembly 11 is sealed by a pouch which is a packaging material. The pouch consists of a cover 16a and a case 16b, and a flange is formed at the edge of the case 16b.

In general, the pouch type secondary battery is manufactured through the following process. First, a pouch consisting of a cover 16a and a case 16b is provided, and the electrode assembly 11 is accommodated in the inner space of the case 16b. Then, the cover 16a is folded to cover the open top surface of the case 16b. At this time, since the flange is formed at the edge of the case 16b, when the cover 16a is folded to cover the upper surface of the case 16b, the upper surface of the flange and the lower surface of the cover 16a are in close contact. In this state, the closely contacted portion is heat-sealed to seal the case 16b as shown. In the pouch type secondary battery sealed as described above, the outer edges of the protruding battery formed in two stages are folded to complete the product.

However, in the prior art, in the process of folding both sides of the battery in two stages, the both sides of the battery were manually folded by 90 degrees, 180 degrees, and 270 degrees inwardly, respectively, to complete the battery. However, when folding the outer peripheral parts of the battery in this way, the work productivity is lowered, there is a fear that the failure of the battery occurs because the setting before the folding is made by hand. In addition, the battery may be damaged by handling the battery by the operator's hand, thereby resulting in a poor appearance. In addition, in order to build an automation line for the secondary battery in the future, the process of folding both sides of the battery also needs to be automated.

The present invention is to solve the above problems, and provided with a 90 degree folding unit, 135 degree folding unit, 180 degree folding unit, and 270 degree folding unit, two sides of the pouch type secondary battery in sequence to automatically Its purpose is to provide a folding device for a pouch type secondary battery that can be bent.

1 is a perspective view showing a conventional pouch type secondary battery.

2 and 3 are front and side views, respectively, of a 90 degree folding unit according to one embodiment of the invention.

4 is a cross-sectional view of the first upper mold assembly and the first lower mold assembly in a 90 degree folding unit;

5 and 6 are front and side views, respectively, of a 135 degree folding unit according to an embodiment of the present invention.

7 is a cross-sectional view of the second upper mold assembly and the second lower mold assembly of the 135 degree folding unit.

8 is a front view of a 180 degree folding unit in accordance with an embodiment of the present invention.

9 is a cross-sectional view of the third upper mold assembly and the third lower mold assembly of the 180 degree folding unit.

10 is a front view of a 270 degree folding unit in accordance with an embodiment of the present invention.

FIG. 11 is a cross-sectional view of the fourth upper mold assembly and the fourth lower mold assembly of the 270 degree folding unit. FIG.

<Brief description of the major symbols in the drawings>

10..battery 200..90 degree folding unit

211 Frame 212 Base

220, 320, 420, 520 Lifting unit 225 Air cylinder

230. First upper mold assembly 232. First clamper

233. First pressure member 240. First lower mold assembly

250. First supporting means 260. First seating member

300 .. 135 degree folding unit 330. 2nd upper mold assembly

332. Second clamper 340 Second lower mold assembly

343. Second seating member 350. Second support means

400..180 degree folding unit 430 .. 3rd upper mold assembly

432. Third clamper 440 Third lower mold assembly

443. Third seating member 450. Third support means

500..270 degree folding unit 530 .. fourth upper mold assembly

532. Fourth clamper 533. Second pressure member

540. The fourth lower mold assembly 543. The fourth seating member

550. Fourth supporting means

Pouch type secondary battery folding apparatus according to the present invention for achieving the above object, the frame; A lifting unit installed at an upper side of the frame; A base installed on the lower side of the frame; An upper mold assembly coupled to the elevating unit and capable of elevating movement; And a lower mold assembly installed on the base to correspond to the upper mold assembly, and configured to bend the outer edges of both sides of the battery at a predetermined angle when the upper mold assembly is lowered.

The lifting unit includes a guide rail installed perpendicularly to the frame, a bracket receiving the guide rail, a mounting frame coupled to the bracket and mounted with an upper mold assembly, and an upper mold installed on the mounting frame. And an elevating drive means for elevating the assembly.

The upper mold assembly may be provided between a pair of first clampers for bending the outer portion downward by 90 degrees by pressing edges of both outer sides of the battery, and installed between the first clampers to provide both outer and main parts of the battery. And a first pressurizing member that is pressurized and elastically supported by a first support means installed thereon, and a first upper mold frame to which the first clappers and the first pressurizing member are installed, wherein the lower mold assembly The first seating member is provided with a seating portion into which a battery is inserted and seated, a first seating member positioned at an edge of the seating portion, and a support portion formed to correspond to both outer edges of the battery that are not bent, and the first seating member is installed. One table is provided, and the outer sides of the battery are folded downward by 90 degrees.

The upper mold assembly includes a first body portion and a first protrusion extending downward from the first body portion and having a first protrusion having an inclined surface of 45 degrees on an outer edge thereof to press both outer portions of the battery. Second clampers and a second upper mold frame to which the first body portion is installed, wherein the lower mold assembly includes a second table, a second lower mold frame supporting the second table, and the second mold. A second seating member installed slidably up and down in a space provided in the second table and the second lower mold frame and seated with a battery, the second seating member being elastically supported by a second support means installed at the lower side thereof; Both sides of the seating member are provided to protrude upwards and have a first pressing portion formed with an inclined surface corresponding to the inclined surface of the first protrusion of the second clamper, and both sides of the battery bent at 90 degrees. The side 45 is characterized by folding.

The upper mold assembly includes a second body portion and a pair of third protrusions protruding downward from the second body portion and having a second protrusion having a lower surface thereof as a smooth surface to press the edges and the outer portions of the main body of the battery. And a third upper mold frame in which the clampers and the second body part are installed, wherein the lower mold assembly includes a third table, a third lower mold frame for supporting the third table, the third table and the third table. The third seating member is installed to be slidable up and down in the space provided in the lower mold frame, and the battery is seated, the third seating member being elastically supported by the third supporting means installed on the lower side, and both sides of the third seating member. A second pressing part formed to correspond to the second protrusion formed on the third clamper may be provided to fold the outer side parts of the battery bent by 135 degrees to 45 degrees.

The upper mold assembly is provided between a pair of four clampers for bending the outer portion of the battery 90 degrees downward by pressing the edges of both outer sides of the battery, and the fourth clamper to press both outer portions and the main body of the battery, A second pressing member elastically supported by a fourth supporting means installed at an upper portion thereof, and a fourth upper mold frame on which the fourth clappers and the second pressing member are installed, wherein the lower mold assembly comprises: And a fourth seating member installed at a predetermined height from the fourth table and having a recessed groove formed thereon for seating the battery. It is characterized in that the two sides of the battery is bent in two stages.

The pouch-type secondary battery folding apparatus according to the present invention comprises a frame, an elevating unit installed on an upper side of the frame, and a base provided on a lower side of the frame. A 90 degree folding unit for folding the degree; A 135 degree folding unit for folding both sides of the battery folded through the 90 degree folding unit 45 degrees inwardly; A 180 degree folding unit for folding both sides of the folded side of the battery through the 135 degree folding unit 45 degrees inwardly; And a 270 degree folding unit for folding both sides of the battery 90 degrees downward through the 180 degree folding unit 90 degrees to finally bend the two sides of the battery in two steps.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The folding device for a pouch type secondary battery according to the exemplary embodiment of the present invention includes a 90 degree folding unit, a 135 degree folding unit, a 180 degree folding unit, and a 270 degree folding unit.

2 and 3 show front and side views, respectively, of a 90 degree folding unit according to one embodiment of the invention. 4 shows a first upper mold assembly and a first lower mold assembly in a 90 degree folding unit.

2 to 4, in the folding device for a pouch type secondary battery, the 90 degree folding unit 200 is for folding the outer sides of the battery 10 90 degrees downward. The 90 degree folding unit 200 is provided with a frame 211 and a base 212 coupled to a lower side of the frame 211. An elevating unit 220 is installed at an upper side of the frame 211, and a first upper mold assembly 230 is coupled to the elevating unit 220 to be elevated by an elevating unit 220. The first lower mold assembly 240 is installed on the base 212 to correspond to the first upper mold assembly 230.

A guide rail 221 is vertically installed on the frame 211 in the elevating unit 220, and one end of the bracket 222 is inserted into the guide rail 221. The bracket 222 may be elevated by the guide rail 221. The bracket 222 is coupled to the mounting frame 223 on which the first upper mold assembly 230 is mounted. And, the lifting drive means is installed on the mounting frame 223. Preferably, the lifting driving means is an air cylinder 224. As air is supplied to the air cylinder 225 or air is discharged from the air cylinder 224, the piston 225a is reciprocated. The end of the piston 225a is coupled to the mounting frame 224. The mounting frame 224 and the first upper mold assembly 230 coupled thereto may be lifted up and down. On the other hand, the lifting drive means is not limited to this, it may be a motor or a hydraulic cylinder capable of forward and reverse rotation.

The first upper mold assembly 230 includes a pair of first clampers 232 to bend the outer sides of the battery 10 by 90 degrees. The first clampers 232 are spaced apart from each other, and each of the first clampers 232 is installed to correspond to both outer edges of the battery 10 to be bent. The first pressing member 233 is installed between the first clampers 232. The first pressing member 233 may be elastically supported by the first supporting means 250, the first supporting means 250 in the insertion groove formed perpendicular to the first upper mold frame 231 An insertion column 251 inserted and slid, and an elastic member 253 is installed on the outer circumference of the insertion column 251. The elastic member 253 is preferably a compression spring. A locking protrusion 252 is formed at an upper end of the insertion column 251 to prevent the insertion column 251 from being separated, and a lower end thereof is coupled with the first pressing member 233.

The first clamper 232 is fixed to the first upper mold frame 231, the first upper mold frame 231 is coupled to the mounting frame 224 of the lifting unit 220. A pair of guide pins 234 are installed in the first upper mold frame 231, and each of the guide pins 234 is positioned outside the first clampers 232, respectively.

The first lower mold assembly 240 is provided with a first table 242. The first seating member 260 is formed in the first table 242 so that the battery 10 can be seated. A guide bush 243 is formed in the first table 242, and the guide bush 243 corresponds to the guide pins 234 provided in the first upper mold assembly 230. When the first upper mold assembly 230 is lowered, guide pins 234 may be inserted and guided. A first lower mold frame 241 is installed below the first table 242 to support the first table 242, and the first lower mold frame 241 is coupled to the base 212.

The first seating member 260 is installed at a predetermined height from the first table 242. The first seating member 260 is a seating portion 261 formed so that the battery 10 can be inserted and seated therein. The support part 262 is positioned at an edge of the seating part 261 and formed to correspond to both outer edges of the battery 10 that are not bent. That is, the upper surface of the support portion 262 is in contact with the lower surface of both outer sides of the battery 10, thereby supporting both sides of the battery 10 that is not bent, and the lower surface of the first pressing member 233 It is matched.

A spacer is disposed between the first clamper 232 and the guide pin 234 of the first upper mold assembly 230 and between the guide bush 243 and the first seating member 260 of the second lower mold assembly 240. (spacer, 270) may be interposed. The spacer 270 is intended to cope with a case in which the width of the spacer 270 is different depending on the model of the battery. The spacer 270 may be installed in folding units to be described later.

And, as shown in the 90-degree folding unit 200 is provided in a pair, it is preferable that the folding operation is made more efficiently.

The operation of the 90 degree folding unit 200 having the above configuration will now be described.

When the first upper mold assembly 230 is lowered by the elevating unit 220 to be aligned with the first lower mold assembly 240, the first pressing member 233 may be disposed in the first upper mold assembly 230. The lower surface of the battery 10 pressurizes the upper surface of the body 10, and the first pressing member 233 supported by the first supporting means 250 retreats upward by the pressing force. When the first pressing member 233 is retracted as described above, a predetermined space is provided between the first clampers 232, whereby the body of the battery 10 is inserted into and supported by the space. On the other hand, the outer sides of the battery 10 are in contact with the first clamper 232, respectively, the first clamper 232 as the first lower mold assembly 230, the first lower mold assembly 240 Since it moves to the upper surface of the first table 242, the battery 10 is supported and both outer edge portions of the battery 10 are bent by 90 degrees. On the other hand, when the first upper mold assembly 230 is raised again, the first pressing member 233 can be returned to its original position by the elastic force of the first support means 250.

5 and 6 show front and side views of the 135 degree folding unit, respectively, and FIG. 7 shows the second upper mold assembly and the second lower mold assembly for the 135 degree folding unit. The same reference numerals as in the above-described drawings indicate the same members having the same function.

The 135 degree folding unit is for further folding inward by 45 degrees while the outer edges of the battery are 90 degrees folded through the aforementioned 90 degree folding unit. When passing through the 135-degree folding unit, both sides of the battery are folded 135-degree from the original state.

5 to 7, the 135 degree folding unit 300, like the 90 degree folding unit 200, includes a frame 211 and a base 212. The lifting unit 320 is installed on the frame 211, and the lifting unit 320 lifts the second upper mold assembly 330, and the lifting unit 220 provided in the 90 degree folding unit 200. Since the configuration is the same and a detailed description will be omitted. The base 212 is provided with a second lower mold assembly 340.

The second upper mold assembly 330 is provided with a pair of second clampers 332 for pressing both outer portions of the battery 10, and the second clampers 332 are provided with a second upper mold frame 331. It is fixed to the installation. The second upper mold assembly 330 may be lifted by combining the second upper mold frame 331 with the mounting frame 321 of the lifting unit 320. The second upper mold frame 331 is provided with a pair of guide pins 234, and each of the guide pins 234 is positioned outside the second clamper 332, respectively.

Each of the second clampers 332 includes a first body portion 333 and a first protrusion 334 protruding downward from the first body portion 333. An inclined surface 334a is formed at an outer edge of the first protrusion 334, and the inclined surface 334a forms an angle of 45 degrees with respect to the vertical axis. The first body part 333 is fixed to the second upper mold frame 331.

The second lower mold assembly 340 is provided with a second table 342, and a lower portion of the second lower mold frame 341 supports the second table 342 and is coupled to the base 212. Is installed.

A second seating member 343 is provided on the second table 342, and the inclined surface 334a of the first protrusion 334 formed on the second clamper 332 on both sides of the second seating member 343. The first pressing part 344 having the inclined surface 344a is formed to correspond to this. The first pressing part 344 protrudes upward. Accordingly, a predetermined space may be provided between the first pressing parts 344, and the battery 10 may be seated in the space.

The second seating member 343 is inserted into a space provided in the second table 342 so as to be slidable up and down, and the second seating member 343 is moved above the second lower mold frame 341. The space part 341a is further provided so that it may be. In addition, a second support means 350 is provided below the second seating member 343 to elastically support the battery 10. The second support means 350 includes a pair of insertion columns 351 and an elastic member 352 to elastically support them. The elastic member 352 is preferably a compression spring. The insertion pillars 351 are respectively installed in the insertion grooves formed perpendicular to the second lower mold frame 341 to be reciprocated. The upper surface of the insertion pillar 351 is the second seating member 343. ) Is in contact with the bottom surface, the bottom surface of the insertion column 351 is elastically supported by the elastic member 352.

The second table 342 corresponds to the guide pins 234 provided in the second upper mold assembly 330, and guide pins 234 are inserted and guided when the second upper mold assembly 330 is lowered. A pair of guide bushes 243 are formed so as to be possible. In addition, the 135-degree folding unit 300 is also provided in a pair similar to the aforementioned 90-degree folding unit 200, it is preferable that the folding operation is performed efficiently.

The operation of the 135-degree folding unit 300 having the above configuration will be described in detail as follows.

When the second upper mold assembly 330 is lowered by the elevating unit 320, the first protrusion 334 of the second clamper 332 presses the upper surface of the main body of the battery 10. Subsequently, the inclined surface 334a of the first protrusion 334 and the inclined surface 344a of the first pressing unit 344 are aligned, and are elastically supported by the second supporting means 350. The second seating member 343 retreats downward and is inserted between the first pressing parts 344. As described above, when the inclined surface 334a of the first protrusion 334 and the inclined surface 344a of the first pressing unit 344 are aligned, the outer peripheral portion of the battery 10 folded at 90 degrees is inclined surfaces 334a and 344a. By pressing and bending in accordance with the angle of), it can be folded 135 degrees from the initial state. On the other hand, when the second upper mold assembly 330 is raised again, the second seating member 343 is returned to its original position by the second supporting means 350.

8 shows a front view of a 180 degree folding unit, and FIG. 9 shows a third upper mold assembly and a third lower mold assembly in a 180 degree folding unit.

The 180 degree folding unit is for further folding inward 45 degrees while the outer edges of the battery are 135 degrees folded through the aforementioned 136 degrees folding unit. When passing through the 180 degree folding unit, both sides of the battery may be folded 180 degrees from the initial state.

8 and 9, the 180-degree folding unit 400 includes a frame 211 and a base 212, similar to the folding units 200 and 300 described above. The lifting unit 420 is installed in the frame 211, and the lifting unit 420 moves up and down the third upper mold assembly 430, and is provided in the above-described folding units 200 and 300. Since the configuration is the same as the lifting unit (220) (320), a detailed description thereof will be omitted. The base 212 is provided with a third lower mold assembly 440.

The third upper mold assembly 430 includes a pair of third clampers 432 for pressing both outer portions of the battery 10, and the third clampers 432 may include a third upper mold frame 431. It is fixed to the installation. The third upper mold assembly 430 may be liftable by coupling the third upper mold frame 431 with the mounting frame 421 of the lifting unit 420. The third upper mold frame 431 is provided with a pair of guide pins 234, and each of the guide pins 234 is positioned outside the third clamper 432, respectively.

Each of the third clampers 432 includes a second body portion 433 and a second protrusion 434 protruding downward from the second body portion 433. The second body portion 433 is fixed to the third upper mold frame 431. A lower surface of the second protrusion 434 is formed of a smooth surface, and the width of the second protrusion 434 may be enough to press both the body 10 and the outer portion of the battery 10.

The third lower mold assembly 440 is provided with a third table 442, and a lower portion of the third table 442 is provided with a third lower mold frame 441 coupled to the base 212. .

A third seating member 443 is installed on the third table 442, and both sides of the third seating member 443 may correspond to second protrusions 434 formed on the third clamper 432. The second pressing part 444 is formed.

Like the 135-degree folding unit 300, the third seating member 443 is inserted into a space provided in the third table 442 to be installed to be slidable up and down, and between the second pressing parts 444. Since a predetermined space is provided in the battery 10, the battery 10 may be seated. In addition, a third support means 450 is installed below the third seating member 443 to elastically support the battery 10 seated on the third seating member 443. Since the third support means 450 has the same configuration as the second support means 350 provided in the 135-degree folding unit 300, detailed description thereof will be omitted.

The third table 442 corresponds to the guide pins 234 provided in the third upper mold assembly 430. When the third upper mold assembly 430 is lowered, the guide pins 234 are inserted and guided. A pair of guide bushes 243 are formed so that the 180 degree folding unit 400 is also provided in a pair similar to the folding units 200 and 300 described above, so that the folding work can be efficiently performed. desirable.

The operation of the 180 degree folding unit 400 having the above configuration will be described in detail as follows.

When the third upper mold assembly 430 is lowered by the elevating unit 420, the second protrusion 434 of the third clamper 432 presses the upper surface and the outer surface of the main body of the battery 10. Subsequently, when the lower surface of the second protrusion 434 and the upper surface of the second pressing part 444 are aligned, the third seating member 443 which is elastically supported by the third supporting means 450 is Retreat downwards. When the third upper mold assembly 430 is lowered and the lower surface of the second protrusion 434 is aligned with the upper surface of the second pressing unit 444, the outer outer portion of the battery 10 folded at 135 degrees is pressurized to 45 degrees. By further folding, it is folded 180 degrees from the initial state. On the other hand, when the third upper mold assembly 430 is raised again, the third seating member 443 is returned to its original position by the second supporting means 450.

FIG. 10 shows a front view of the 270 folding unit, and FIG. 11 shows a fourth upper mold assembly and a fourth lower mold assembly in the 270 degree folding unit.

The 270 degree folding unit is for further folding 90 degrees downward while the outer edges of the battery are folded 180 degrees via the aforementioned 180 degree folding unit. When passing through the 270 degree folding unit, both sides of the battery may be folded in two stages, 270 degrees from the initial state.

10 and 11, the 270 degree folding unit 500 includes a frame 211 and a base 212, similar to the folding units 200, 300 and 400 described above. The lifting unit 520 is installed on the frame 211, and the lifting unit 520 lifts and lowers the fourth upper mold assembly 530. The folding units 200, 300, and 400 are described above. Since the configuration is the same as the lifting unit 520 provided in the detailed description will be omitted. The base 212 is provided with a fourth lower mold assembly 540.

The fourth upper mold assembly 530 includes a pair of fourth clampers 532 to bend the outer sides of the battery 10 by 90 degrees. When the fourth upper mold assembly 530 is lowered by the elevating unit 520, the fourth clampers 532 are installed to correspond to both outer edges of the battery 10 to be bent.

The fourth clampers 532 are spaced apart from each other, and a second pressing member 533 is disposed therebetween. The second pressing member 533 may be elastically supported by the fourth supporting means 550. Since the fourth support means 550 has the same configuration as that of the first support means 250 provided in the aforementioned 90 degree folding unit 200, a detailed description thereof will be omitted.

The lower end of the insertion column 551 of the fourth support means 550 is coupled to the second pressing member 533.

The fourth clamper 532 is fixed to the fourth upper mold frame 531, the fourth upper mold frame 531 is coupled to the mounting frame 521 of the lifting unit 520, the fourth upper mold Assembly 530 may be elevated. The fourth upper mold frame 531 is provided with a pair of guide pins 234, and each of the guide pins 234 is positioned outside the fourth clampers 532, respectively.

The fourth lower mold assembly 540 is provided with a fourth table 542. A fourth seating member 543 may be formed in the fourth table 542 to seat the battery 10. The fourth table 542 corresponds to the guide pins 234 provided in the fourth upper mold assembly 530, and when the fourth upper mold assembly 530 is lowered, the guide pins 234 are inserted into the fourth table 542. A pair of guide bushes 243 are formed to be guided. A fourth lower mold frame 541 is installed below the fourth table 542 to support the fourth table 542, and the fourth lower mold frame 541 is coupled to the base 212.

The fourth seating member 543 is provided at a predetermined height from the fourth table 542, and an inlet groove is formed on the upper side thereof to allow the battery 10 to be seated thereon.

The operation of the 270 degree folding unit 500 having the above configuration will now be described.

When the fourth upper mold assembly 530 is lowered by the elevating unit 520 to be aligned with the fourth lower mold assembly 540, the second pressing member 533 of the fourth upper mold assembly 530 is provided. The lower surface of the battery 10 pressurizes the upper surface of the main body of the battery 10, and the second pressing member 533 supported by the fourth supporting means 550 retreats upward by the pressing force. When the second pressing member 533 is retracted as described above, a predetermined space is provided between the fourth clampers 532, whereby the body of the battery 10 is inserted into and supported by the space. On the other hand, both outer edges of the battery 10 are in contact with the fourth clamper 532, respectively, the fourth clamper 532 is the lower portion of the fourth lower mold assembly 540 as the fourth upper mold assembly 530 is lowered. Since it moves to the upper surface of the fourth table 542, the battery 10 is supported and both outer edge portions of the battery 10 are bent by 90 degrees. On the other hand, when the fourth upper mold assembly 530 is raised again, the second pressing member 533 may be returned to its original position by the elastic force of the fourth supporting means 550.

As described above, when the 90-degree folding unit 200, 135-degree folding unit 300, 180-degree folding unit 400, and 270-degree folding unit 500 sequentially passes, both sides of the battery 10 The part can be folded in two stages.

As described above, the pouch-type secondary battery folding apparatus according to the present invention includes a 90-degree folding unit, a 135-degree folding unit, a 180-degree folding unit, and a 270-degree folding unit, thereby automatically automating both sides of the secondary battery. Can be folded in two stages. Therefore, it is possible to prevent the generation of battery damage and defective appearance of the battery according to the manual work, there is an effect that can increase the work efficiency.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Could be. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (13)

A frame; A lifting unit installed at an upper side of the frame; A base installed on the lower side of the frame; An upper mold assembly coupled to the elevating unit and capable of elevating movement; And And a lower mold assembly installed on the base so as to correspond to the upper mold assembly and bending both sides of the battery at a predetermined angle when the upper mold assembly is lowered. The method of claim 1, The lifting unit includes a guide rail installed perpendicularly to the frame, a bracket receiving the guide rail, a mounting frame coupled to the bracket and mounted with an upper mold assembly, and an upper mold installed on the mounting frame. A pouch type secondary battery folding device, comprising: a lift driving means for lifting and lowering the assembly. The method of claim 2, The lift drive means is a pouch type secondary battery folding device, characterized in that the selected one of the air cylinder, hydraulic cylinder, and motor. The method of claim 1, The upper mold assembly may be provided between a pair of first clampers for bending the outer portion downward by 90 degrees by pressing edges of both outer sides of the battery, and installed between the first clampers to provide both outer and main parts of the battery. And a first pressurizing member which is pressurized and elastically supported by a first supporting means installed thereon, and a first upper mold frame on which the first clappers and the first pressurizing member are installed. The lower mold assembly may include a seating part into which a battery is inserted and seated, a first seating member disposed at an edge of the seating portion, and a support part formed to correspond to both outer edges of the battery that are not bent, and the first seating member; Pouch-type secondary battery folding device comprising a first table to be installed to fold both sides of the battery 90 degrees downward. The method of claim 4, wherein The first support means, for the pouch type secondary battery, characterized in that it comprises an insertion column which is inserted into the insertion groove and formed in the insertion groove formed perpendicular to the first upper mold frame, and an elastic member installed on the outer periphery of the insertion pillar. Folding device. The method of claim 4, wherein Guide pins are formed in the first upper mold frame, and a guide bush for inserting and guiding the guide pins is formed in the first table. The method of claim 1, The upper mold assembly includes a first body portion and a first protrusion extending downward from the first body portion and having a first protrusion having an inclined surface of 45 degrees on an outer edge thereof to press both outer portions of the battery. Second clampers and a second upper mold frame to which the first body is installed, The lower mold assembly includes a second table, a second lower mold frame for supporting the second table, and a space provided in the second table and the second lower mold frame so as to be slidable up and down and seated with a battery. And a second seating member elastically supported by a second support means installed below the second seating member, and protruded upwardly on both sides of the second seating member and corresponding to an inclined surface of the first protrusion of the second clamper. A pouch type secondary battery folding device comprising a first pressing part having an inclined surface so as to be folded inwardly by 45 degrees on both sides of the battery, which is bent by 90 degrees. The method of claim 7, wherein The second support means has a pair of insertion pillars whose lower portions are respectively inserted into the insertion grooves formed in the second lower mold frame and reciprocate, the upper portions of which are in contact with the second seating member. A folding device for a pouch type secondary battery, characterized by comprising an elastic member for supporting. The method of claim 1, The upper mold assembly includes a second body portion and a pair of third protrusions protruding downward from the second body portion and having a second protrusion having a lower surface thereof as a smooth surface to press the edges and the outer portions of the main body of the battery. A clamper and a third upper mold frame on which the second body portion is installed, The lower mold assembly includes a third table, a third lower mold frame for supporting the third table, and a space provided in the third table and the third lower mold frame so as to be slidable up and down, and the battery is seated. And a third seating member elastically supported by the third supporting means installed below the second seating member, and second pressurizing portions formed on both sides of the third seating member to correspond to the second protrusions formed on the third clamper. And Folding device for pouch type secondary battery, characterized in that for folding the inner side portions of the battery bent 135 degrees 45 degrees. The method of claim 9, The third support means may include a pair of insertion pillars whose lower portions are respectively inserted into the insertion grooves formed in the third lower mold frame, and reciprocate, and the upper portions thereof contact the third seating members; An elastic member for elastically supporting them; Pouch-type secondary battery folding apparatus comprising a. The method of claim 1, The upper mold assembly is provided between a pair of four clampers for bending the outer portion of the battery 90 degrees downward by pressing the edges of both outer sides of the battery, and the fourth clamper to press both outer portions and the main body of the battery, A second pressing member elastically supported by a fourth supporting means installed at an upper portion thereof, and a fourth upper mold frame on which the fourth clappers and the second pressing member are installed; The lower mold assembly includes a fourth table and a fourth seating member installed at a predetermined height from the fourth table and having a recessed groove formed therein to allow the battery to be seated thereon, so that the outer sides of the battery folded 180 degrees are downward. Pouch-type secondary battery folding device characterized in that the folding by 90 degrees to finally bend the two outer edges of the battery in two stages. The method of claim 11, The fourth support means, for the pouch type secondary battery, characterized in that it comprises an insertion column which is inserted into the sliding groove formed perpendicularly to the fourth upper mold frame and the elastic member is installed on the outer periphery of the insertion pillar Folding device. And a frame, an elevating unit installed on the upper side of the frame, and a base installed on the lower side of the frame. A 90 degree folding unit for folding both sides of the battery 90 degrees downward; A 135 degree folding unit for folding both sides of the battery folded through the 90 degree folding unit 45 degrees inwardly; A 180 degree folding unit for folding both sides of the folded side of the battery through the 135 degree folding unit 45 degrees inwardly; And Pouch-type secondary battery folding apparatus comprising a; 270-degree folding unit for folding both sides of the battery folded through the 180-degree folding unit 90 degrees downward to finally bend the two sides of the battery in two steps .