KR102608771B1 - Lamination and Z-folding stack system and laminationg and Z-folding stack method - Google Patents

Abstract

The purpose of the present invention is to provide a secondary battery manufacturing process in which notched electrodes are supplied in roll form, the electrodes (negative and positive plates) are cut to a certain standard, and a separator is formed with a gap between the electrode plates to the same size as the electrode plate standard. The purpose of the present invention is to provide a laminating and jet folding stack system that manufactures a jelly roll (electrode assembly) by Z-folding after a laminating process with (2C), and the configuration of the present invention is to A reel positive plate supply unit 20 that supplies a reel positive plate 2RA wound in a roll shape; A reel negative electrode plate supply unit 30 that supplies a reel negative electrode plate (2RB) wound in a roll shape to the negative plate bobbin 32; A separator supply unit 40 that supplies a separator 2C between the reel positive electrode plate 2AR and the reel negative electrode plate 2BR; An anode cutter 50 that cuts the reel positive plate (2RA) supplied from the reel positive plate supply unit 20; A cathode cutter (60) for cutting the reel negative electrode plate (2RB) supplied from the reel negative plate supply unit 30; A laminating unit 70 for laminating the separator 2C between the positive electrode plate 2A and the negative electrode plate 2B cut by the positive electrode cutter 50 and the negative electrode cutter 60; A feeding gripper 130 that grips the electrode separator stack 2 in which the positive electrode plate 2A, the separator 2C, and the negative electrode plate 2B are laminated; A stack table 170 is moved by the feeding gripper 130 on which the electrode separator laminate 2 is placed and stacked.
The present invention has the effect of simplifying the process and shortening the process time by eliminating the need for the bi-cell process of making electrodes in bi-cell units and continuously supplying and folding separators.

Description

Laminating and jet folding stack system and laminating and jet folding stack method {Lamination and Z-folding stack system and laminationg and Z-folding stack method}

The present invention relates to a laminating and jet folding stack system. More specifically, in the manufacturing process of secondary batteries, notched electrodes are supplied in roll form, the electrodes (negative and positive plates) are cut to a certain standard, and the electrodes (negative and positive plates) are cut to a certain standard and are the same as the electrode plate standard. It relates to a laminating and jet folding stack system that manufactures an electrode assembly by going through a laminating process with a separator and then folding (Z-folding) with a space between the electrode plates in size.

Secondary batteries are rechargeable and can be made small and large in capacity. Secondary batteries are made by making a battery cell in which a positive plate, a separator, and a negative plate are stacked together, and embedding the battery cell in an external case such as a pouch or can.

However, the conventional process has the disadvantage of delaying the process time and complicating the process because the bicell process is essentially a structure in which electrodes are made in a bicell unit and separators are continuously supplied and folded (winded).

In addition, the conventional laminating and folding process has the fatal disadvantage of folding without an insulator between electrodes (between positive and negative electrode plates).

Korean Patent Publication No. 10-2020-0104190 (published on September 3, 2020) Korean Patent No. 10-2096934 (registered on March 30, 2020) Korean Patent No. 10-2049516 (registered on November 21, 2019) Korean Patent Publication No. 10-2018-0016501 (published on February 14, 2018)

The present invention was developed to solve the problems described above, and the main purpose of the present invention is to dramatically improve the shortcomings of the conventional process and to provide a new method to simplify the assembly process and increase workability and efficiency. The object is to provide a laminating and jet folding stack system and a laminating and jet folding stack method.

According to the present invention for solving the above problems, a reel positive plate supply unit that supplies a reel positive plate wound in a roll shape on a positive plate bobbin; A reel negative electrode plate supply unit that supplies a reel negative electrode plate wound in a roll shape on a negative electrode plate bobbin; a separator supply unit that supplies a separator between the reel positive electrode plate and the reel negative electrode plate; An anode cutter for cutting the reel positive plate supplied from the reel positive plate supply unit; a cathode cutter for cutting the reel negative electrode plate supplied from the reel negative plate supply unit; a laminating unit that laminates the separator to be interposed between the positive and negative electrode plates cut by the anode cutter and the cathode cutter; A feeding gripper that grips the electrode separator laminate in which the positive electrode plate, the separator, and the negative electrode plate are laminated; A laminating and jet folding stacking system is provided, comprising a stack table that is moved by the feeding gripper and on which the electrode separator laminate is raised and stacked.

When the feeding gripper brings the electrode separator laminate to the stack table, it advances upwards of the stack table so that the separator is caught on the electrode plate separator laminate, thereby completing the movement of the electrode separator laminate to the upper surface of the stack table. It is characterized in that it further includes a mandrel that allows the separator to be folded at a time.

The mandrel includes a first mandrel advancing from a first side of the stack table to an upper surface of the stack table, and a second mandrel advancing from a second side of the stack table to the upper surface of the stack table, The separator of the electrode separator laminate that is gripped by the feeding gripper and moved toward the stack table is hooked on the side of the first mandrel, thereby folding the separator.

When the electrode separator laminate is stacked layer by layer, the stack table descends by the thickness of the electrode separator laminate, and the first mandrel and the second mandrel move backward from the upper surface of the stack table and then connect to the stack table. It is characterized in that it is configured to advance again above the stack table in a lowered state and then descend to press the electrode plate separator stack from above.

A vision inspection unit is provided between the laminating unit and the stack table, and is configured to perform dimensional inspection and insulation inspection processes of the electrode plate and separator laminate by the vision inspection unit.

According to the present invention, an electrode plate separator supply step of supplying a separator between a reel positive electrode plate wound in a roll shape on the positive plate bobbin of the reel positive plate supply unit and a reel negative electrode plate wound in a roll shape on the negative electrode plate bobbin of the reel negative electrode plate supply unit; An anode cutting step of cutting the reel positive plate supplied from the reel positive plate supply unit; A cathode cutting step of cutting the reel cathode plate supplied from the reel cathode plate supply unit; A laminating step of laminating so that the separator is interposed between the positive electrode plate and the negative electrode plate cut by the positive electrode cutter and the negative electrode cutter; A electrode plate separator laminate transfer step of gripping the electrode plate separator laminate in which the positive plate, the separator, and the negative electrode plate are laminated by a feeding gripper and moving it above the stack table; When the feeding gripper brings the electrode separator laminate to the stack table, the mandrel advances above the stack table so that the separator is caught on the mandrel in the electrode plate separator laminate and the electrode plate is moved to the upper surface of the stack table. A laminating and jet folding stack method comprising a folding step of folding the separator when the separator stack is complete in movement is provided.

The present invention has the effect of simplifying the process and shortening the process time by eliminating the need for the bi-cell process of making electrodes in bi-cell units and continuously supplying and folding separators.

In addition, the present invention has the effect of reducing electrode resistance (resistance of negative and positive plates) and improving marketability.

1 and 2 are side views showing the structure of the laminating and jet folding stack system according to the present invention;
Figures 3 and 4 are side views schematically showing the process of stacking the positive and negative electrode plates and the separator by the laminating and jet folding stack system according to the present invention;
Figure 5 is a perspective view showing the structure of the feeding gripper employed in the laminating and jet folding stack system of the present invention;
Figure 6 is a side view showing the state in which the first mandrel and the second mandrel are advanced above the stack table when stacking the positive electrode plate, the negative electrode plate, and the separator on the stack table by the laminating and jet folding stack system of the present invention;
Figure 7 is a front view showing the structure of the first mandrel shown in Figure 6;
Figure 8 is a front view showing the structure of the second mandrel shown in Figure 6;
Figure 9 is a front view showing the structure of a stack table employed in the laminating and jet folding stack system of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. The purpose, features, and advantages of the present invention can be more easily understood by referring to the accompanying drawings and the following detailed description. In the drawings, identical symbols are used for identical parts. Additionally, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

Additionally, when describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, sequence, or order of the component is not limited by the term. When a component is described as being "connected," "coupled," or "connected" to another component, that component may be directly connected or connected to that other component, but there is no need for another component between each component. It should be understood that may be “connected,” “combined,” or “connected.”

Figures 1 and 2 are side views showing the structure of the laminating and jet folding stack system according to the present invention, and Figures 3 and 4 show the process of stacking the positive plate, negative plate, and separator by the laminating and jet folding stack system according to the present invention. Figure 5 is a schematic side view, Figure 5 is a perspective view showing the structure of the feeding gripper employed in the laminating and jet folding stack system of the present invention, and Figure 6 is a positive plate, a negative plate, and a separator on a stack table by the laminating and jet folding stack system of the present invention. A side view showing the state in which the first mandrel and the second mandrel are advanced above the stack table when stacking, FIG. 7 is a front view showing the structure of the first mandrel shown in FIG. 6, and FIG. 8 is a second mandrel shown in FIG. 6. 2A front view showing the structure of the mandrel, and Figure 9 is a front view showing the structure of the stack table used in the laminating and jet folding stack system of the present invention.

Referring to the drawing, in the present invention, the notched electrode plate is cut to size, inserted to fit the gap between the electrode plates, and laminated together with the continuously supplied separator (2C).

The laminated electrode separator laminate (2) is inspected for dimensions and insulation, and then Z-folded continuously to manufacture a jelly roll (electrode assembly).

The notched electrode plate described in the present invention refers to a reel positive electrode plate (2RA) and a reel negative electrode plate (2RB) of a certain length on which electrode tabs are formed, and the jelly roll is cut by the positive electrode cutter 50 and the negative electrode cutter 60. This means that the electrode separator laminate (2), in which a folded (Z-folded) separator (2C) is laminated between a single positive electrode plate (2A) and a single negative electrode plate (2B), is stacked in multiple layers on the stack table 170. do. At this time, the reel positive electrode plate (2RB) described in the present invention refers to an electrode plate wound in a roll shape on the positive plate bobbin 22 of the reel positive electrode plate supply unit 20, and the reel negative electrode plate 2RA refers to the negative electrode plate of the reel negative electrode plate supply unit 30. It refers to a pole plate wound in a roll shape on the bobbin (32).

The laminating and jet folding stack system according to the present invention includes a reel positive plate supply unit 20 that supplies a reel positive electrode plate (2RA), a reel negative electrode plate supply section 30 that supplies a reel negative electrode plate (2RB), the reel positive electrode plate (2RA), and A separator supply unit 40 for supplying a separator 2C between the reel cathode plates 2RB, an anode cutter 50 for cutting the reel anode plate 2RA supplied from the reel cathode plate supply unit 20, and a reel cathode plate supply unit. Between the cathode cutter 60 that cuts the reel cathode plate 2RB supplied from (30), and the anode cutter 50 and the cathode cutter 60, which are cut into individual pieces, the anode plate 2A and the cathode plate 2B. A laminating part 70 for laminating the separator 2C interposed therebetween, and a feeding gripper 130 for gripping the electrode separator stack 2 in which the positive electrode plate 2A, the separator 2C, and the negative electrode plate 2B are laminated. and a stack table 170, which is moved by the feeding gripper 130 and on which the electrode separator laminate 2 is raised and stacked. The stack table 170 is configured to descend by the thickness of the electrode separator stack 2 when the electrode separator stack 2 is stacked one by one. In the present invention, the reel positive plate (2RA) and the reel negative electrode plate (2RB) refer to a long positive electrode plate (2A) and a negative electrode plate (2B) on which notching is completed and a plurality of electrode tabs are formed, and the reel positive plate (2RA) is connected to the positive plate bobbin 22. ) is wound in a roll shape and then unwound and supplied long, and the reel negative electrode plate (2RB) can be configured to be wound in a roll shape on the negative electrode plate bobbin 32 and then unwound and supplied long.

The reel positive plate supply unit 20 is disposed between a positive plate bobbin 22 on which notching has been completed and a plurality of reel positive plates 2RA are wound in a roll shape at regular intervals, and the positive plate bobbin 22 and the positive electrode cutter 50. It is composed of a plurality of positive plate guide rolls 24. The positive plate bobbin 22 is rotatably supported on a support frame (not shown) so that the reel positive plate 2RA is wound in a roll shape. The reel positive plate (2RA) can pass through the outer peripheral surface of the positive plate (2A) guide roller.

The reel negative electrode plate supply unit 30 is disposed between a negative electrode plate bobbin 32 on which notching has been completed and a plurality of reel negative electrode plates 2RB are wound in a roll shape at regular intervals, and the negative electrode plate bobbin 32 and the negative electrode cutter 60. It is configured to include a plurality of negative electrode plate guide rolls (34). The negative electrode plate bobbin 32 is rotatably supported on a support frame (not shown) so that the reel negative electrode plate 2RB is wound in a roll shape. The reel negative electrode plate (2RB) can pass through the outer peripheral surface of the negative electrode plate (2B) guide roller. The reel negative plate supply unit 30 and the reel positive plate supply unit 20 are disposed in positions symmetrical to each other with respect to the separator supply unit 40. That is, the negative electrode plate bobbin 32 and the negative electrode plate guide roll 34 of the reel negative plate supply unit 30 are connected to the positive plate bobbin 22 and the positive plate guide roll 24 of the reel positive plate supply unit 20 based on the separator supply unit 40. It is placed in a symmetrical position.

In the present invention, the reel positive electrode plate 2RA is an electrode plate in which notching is completed and a plurality of electrode tabs are formed at regular intervals, and is configured to be continuously supplied toward the anode cutter 50, and the reel negative electrode plate 2RB is notched, and the plurality of electrode tabs are formed at regular intervals. These electrode plates are formed at regular intervals and are configured to be continuously supplied toward the cathode cutter 60.

The separator supply unit 40 includes a separator bobbin 42 on which a separator 2C is wound in a roll shape, and a plurality of separator guides disposed between the separator bobbin 42 and the anode cutter 50 and the cathode cutter 60. It is configured to include a roll (44). The separator bobbin 42 is rotatably supported on a support frame (not shown) so that the separator 2C is wound in a roll shape. The separator 2C may pass through the outer peripheral surface of the separator guide roll 44. The separator supply unit 40 is disposed between the reel positive electrode supply unit 20 and the reel negative plate supply unit 30. A reel negative plate supply unit 30 and a reel positive plate supply unit 20 are disposed at a front position of the laminating unit 70, and the separator supply unit 40 is disposed at a front position of the laminating unit 70 to form a reel negative plate supply unit 30. ) is disposed between the path through which the negative electrode plate 2B passes and the path through which the positive plate 2A passes from the reel positive plate supply unit 20.

The anode cutter 50 is disposed between the reel positive electrode plate supply unit 20 and the laminating unit 70, and the negative electrode cutter 60 is disposed between the reel negative electrode plate supply unit 30 and the laminating unit 70.

The anode cutter 50 is arranged in a direction perpendicular to the path along which the reel positive plate 2RA passes, and advances to the positive electrode plate 2A by the positive electrode cutter 50 raising and lowering device to cut the reel positive plate 2RA. The positive plate (2A) (square plate shaped positive plate (2A)) is made.

At this time, even after the anode cutter 50 cuts the reel positive plate 2RA, the reel positive plate 2RA is continuously supplied toward the positive electrode cutter 50 by the continuous supply part of the positive plate 2A. The positive plate (2A) continuous supply unit rotates in opposite directions and includes a pair of reel positive plate (2RA) supply rolls that pass the reel positive plate (2RA) between them, and a pair of reel positive plate (2RA) supply rolls that rotate in opposite directions. It may be composed of a rotating anode supply roll rotating device. The anode supply roll rotating device is coaxially coupled to the anode feeding drive motor mounted on a support frame (not shown) and the motor shaft of the anode feeding drive motor, and is coaxially coupled to the reel anode plate (2RA) supply roll on one side. It may be composed of a first anode feeding gear and a second anode feeding gear engaged with the first anode feeding gear and coaxially coupled to the reel anode supply roll on the other side. When the motor shaft of the anode feeding drive motor rotates in one direction and the first anode feeding gear rotates in one direction, the reel positive plate (2RA) supply roll on one side rotates in one direction, and the second anode feeding gear rotates in one direction. It is engaged with the anode feeding gear and rotates in the opposite direction to the first anode feeding gear, so that the other reel positive plate (2RA) supply roll rotates in the opposite direction to the one reel positive plate (2RA) supply roll. As the pair of parallel reel positive plate (2RA) supply rolls rotate in opposite directions, the reel positive plate (2RA) fed between the pair of parallel reel positive plate (2RA) supply rolls is supplied toward the anode cutter 50. The continuous supply section of the positive plate 2A may be composed of a pair of positive plate 2A supply conveyor belts that contact both sides of the reel positive plate 2RA and run in an endless orbit.

Even after the cathode cutter 60 cuts the reel cathode plate 2RB, the reel cathode plate 2RB is continuously supplied toward the cathode cutter 60 by the cathode plate 2B continuous supply unit. The negative electrode plate (2B) continuous supply unit rotates in opposite directions and includes a pair of reel negative electrode plate (2RB) supply rolls that pass the reel negative electrode plate (2RB) between them, and a pair of reel negative electrode plate (2RB) supply rolls in opposite directions. It may be composed of a rotating device for rotating the cathode supply roll. The cathode supply roll rotating device is coaxially coupled to a cathode feeding drive motor mounted on a support frame (not shown) and the motor shaft of the cathode feeding drive motor, and is coaxially coupled to one reel cathode plate (2RB) supply roll. It may be composed of a first cathode feeding gear and a second cathode feeding gear engaged with the first cathode feeding gear and coaxially coupled to the reel cathode supply roll on the other side. When the motor shaft of the cathode feeding drive motor rotates in one direction and the first cathode feeding gear rotates in one direction, the reel cathode plate (2RB) supply roll on one side rotates in one direction, and the second cathode feeding gear rotates in one direction. It is engaged with the cathode feeding gear and rotates in a direction opposite to the first cathode feeding gear, so that the reel negative electrode plate (2RB) supply roll on the other side rotates in the opposite direction to the reel negative electrode plate (2RB) supply roll on one side. As the pair of parallel reel negative electrode plate (2RB) supply rolls rotate in opposite directions, the reel negative electrode plate (2RB) fed between the pair of parallel reel negative electrode plate (2RB) supply rolls is supplied toward the cathode cutter 60. The continuous supply part of the negative electrode plate 2B may be composed of a pair of negative electrode plate 2B supply conveyor belts that contact both sides of the reel negative plate 2RB and run in an endless orbit.

The single sheet of positive electrode plate 2A cut by the positive electrode cutter 50 is supplied to the laminating part 70 by the positive electrode feeding part. The sheet of positive plate (2A) is fed into the electrode plate inlet of the laminating unit 70 by a conveyor belt that runs on an endless track while continuing to the electrode plate inlet of the laminating unit 70, and the laminating unit 70 A single sheet of positive electrode plate 2A (hereinafter referred to as positive electrode plate 2A for convenience) can be introduced into the laminating unit 70 by a transport means such as a conveyor belt provided in . A conveyor belt for transporting the positive electrode plate 2A cut by the positive electrode cutter 50 toward the laminating unit 70 is formed with a plurality of suction holes, and a vacuum panel is disposed on the inner surface of the conveyor belt, The vacuum panel has a vacuum chamber inside, and a plurality of vacuum operating holes are provided on a surface of the vacuum panel facing the inner surface of the conveyor belt, and the internal vacuum chamber of the vacuum panel is connected to a vacuum device, The vacuum pressure from the vacuum device acts through the vacuum action hole of the vacuum panel and the suction hole of the conveyor belt, and the positive electrode plate (2A) cut by the positive electrode cutter (50) is fed to the positive plate inlet of the laminating unit (70) by vacuum pressure. It can be configured to do so. The conveyor belt and vacuum panel are an anode feeding unit for feeding the anode plate 2A cut by the anode cutter 50 into the electrode plate inlet of the laminating unit 70. Any means for feeding the positive electrode plate 2A cut by the positive electrode cutter 50 toward the electrode plate inlet of the laminating unit 70 may be employed as a positive electrode feeding unit.

The sheet of negative electrode plate 2B cut by the negative electrode cutter 60 is supplied to the laminating part 70 by the negative electrode feeding part. The sheet negative electrode plate (2B) is fed into the electrode plate inlet of the laminating unit 70 by a conveyor belt that runs on an endless track while connecting to the electrode plate inlet of the laminating unit 70, and the laminating unit 70 A single sheet of negative electrode plate 2B (hereinafter referred to as negative electrode plate 2B for convenience) can be introduced into the laminating unit 70 by a transport means such as a conveyor belt provided in . A conveyor belt for transporting the negative electrode plate 2B cut by the negative electrode cutter 60 toward the laminating unit 70 is formed with a plurality of suction holes, and a vacuum panel is disposed on the inner surface of the conveyor belt, The vacuum panel has a vacuum chamber inside, and a plurality of vacuum operating holes are provided on a surface of the vacuum panel facing the inner surface of the conveyor belt, and the internal vacuum chamber of the vacuum panel is connected to a vacuum device, The vacuum pressure generated by the vacuum device acts through the vacuum action hole of the vacuum panel and the suction hole of the conveyor belt, feeding the negative electrode plate (2B) cut by the negative electrode cutter (60) toward the electrode plate inlet of the laminating unit (70). It can be configured to do so. The conveyor belt and vacuum panel are cathode feeding parts for feeding the cathode plate 2B cut by the cathode cutter 60 into the cathode plate inlet of the laminating part 70. Any means for feeding the negative electrode plate 2B cut by the negative electrode cutter 60 toward the electrode plate inlet of the laminating unit 70 may be employed as a negative electrode feeding unit.

The separator 2C feeding unit supplies the separator 2C to the electrode plate inlet of the laminating unit 70. The positive electrode plate 2A is disposed on one side of the separator 2C, and the other side of the separator 2C is disposed on the other side of the separator 2C. With the negative electrode plate 2B disposed on one side, the positive electrode plate 2A, the separator 2C, and the negative electrode plate 2B are supplied together into the interior of the laminating unit 70 through the electrode plate inlet of the laminating unit 70. . When the feeding gripper 130 grips the electrode separator laminate 2 and brings it to the stack table 170, the separator 2C is released from the separator 2C supply bobbin constituting the separator supply unit 40 and is fed. It may be configured.

The laminating unit 70 is configured to have an upper conveyor belt and a lower conveyor belt.

The upper conveyor belt is disposed above the positive electrode plate 2A and is configured to run in an endless orbit.

The lower conveyor belt is disposed above the cathode plate 2B and is configured to run in an endless orbit.

The upper conveyor belt and the lower conveyor belt are arranged symmetrically above and below with respect to the separator 2C supplied from the separator supply unit 40 to the inside of the laminating unit 70.

As the upper and lower conveyor belts travel in an endless orbit, the positive electrode plate 2A is fed toward the stack table 170 by the upper conveyor belt, and the negative plate 2B is fed to the stack table 170 by the lower conveyor belt. The separator 2C supplied between the positive electrode plate 2A and the negative electrode plate 2B is also fed toward the stack table 170. As the upper conveyor belt and the lower conveyor belt travel in an endless orbit, the positive electrode plate 2A, the separator 2C, and the negative electrode plate 2B laminated in the laminating unit 70 are fed together toward the stack table 170. At this time, the separator 2C is continuously connected and the positive electrode plate 2A, the separator 2C, and the negative electrode plate 2B are laminated. The positive electrode plate 2A, the separator 2C, and the negative electrode plate 2B are laminated. It is a separator laminate (2). This electrode separator laminate 2 comes out of the discharge end of the laminating part 70.

Meanwhile, it is preferable that a grip feeding part be provided so as to connect to the discharge end of the laminating part 70. The grip feeding part is where the feeding gripper 130 enters and supports the electrode plate separator laminate (2)(2) in which the positive plate (2A) (2A), the separator (2C) (2C), and the negative plate (2B) (2B) are laminated. It may be composed of a table, etc., and the feeding table holds the electrode plate separator laminate 2 (2) at a position where the feeding gripper 130 does not get caught when the feeding gripper 130 moves to the stack table 170 by moving to the side. It may be configured to be supported from below.

The feeding gripper 130 grips the electrode separator laminate 2 fed from the laminating unit 70 and moves it toward the stack table 170. In the present invention, the feeding gripper 130 includes a first grip member 132 supported on the grip support frame 124, a grip operation unit mounted on the grip support frame 124, and the first grip member 132. It may include a second grip member 134 that is disposed in a position facing the first grip member 132 or is narrowed toward the first grip member 132 by the grip operation unit or spreads out from the first grip member 132.

The first grip member 132 and the second grip member 134 are provided with a separator (2C) (2C) between the positive electrode plates (2A) (2A) and the negative electrode plates (2B) (2B) in the grip feeding part by the grip operation unit. It is configured to grip the interposed electrode plate separator laminate (2)(2).

The grip support frame 124 is provided with a base grip bracket 126G, the base grip bracket 126G is equipped with a first grip member 132, and the grip operation unit 126 is provided with a grip support frame 124. ), a grip drive motor 126A provided in the grip support frame 124, a cam 126B provided in the grip support frame 124, a cam follower 126C coupled to the cam 126B, and a cam follower 126C. A grip operating bracket (126D) that is coupled and disposed above the base grip bracket (126G) and supports the second grip member (134) to be placed at a position facing the first grip member (132), and the grip drive. It may be configured to include a ball screw 126E provided on the motor shaft of the motor 126A, and a ball screw nut 126F coupled to the ball screw 126E and at the same time coupled to the grip operation bracket 126D.

At this time, the cam (126B) is provided with a cam hole (126BH) inclined downward from the base end toward the tip, and the cam follower (126C) is coupled to the cam hole (126BH),

As the motor shaft of the grip driving motor 126A rotates, the cam follower 126C moves along the cam hole 126BH by the ball screw 126E and the ball screw nut 126F, and the first grip member 132 ), the grip operating bracket 126D and the second grip member 134 are raised and lowered, and the grip operating bracket 126D and the second grip member 134 are raised and lowered toward the first grip member 132. The second grip member 134 is widened or narrowed toward the first grip member 132, and the positive electrode plate is in a state where the second grip member 134 is narrowed toward the first grip member 132. (2A) (2A), separator (2C) (2C), and negative plate (2B) (2B) may be configured to grip the electrode plate separator laminate (2) (2) laminated.

The first grip member 132 and the second grip member 134 of the feeding gripper 130 grip the electrode plate separator laminate 2 and carry it toward the stack table 170. The feeding gripper 130 may be configured to move toward the stack table 170 by a moving operation device and bring the electrode plate separator laminate 2 toward the stack table 170.

In the present invention, when the feeding gripper 130 brings the electrode separator laminate 2 toward the stack table 170, it advances upward on the stack table 170 and separates the separator 2C from the electrode separator laminate 2. It further includes a mandrel 210 that is caught so that the separator 2C is folded when the electrode separator laminate 2 is completely moved to the upper surface of the stack table 170.

The mandrel 210 includes a first mandrel 210A advancing from the first side of the stack table 170 to the upper surface of the stack table 170, and a stack table 170 on the second side of the stack table 170. It includes a second mandrel (210B) advancing to the upper surface of.

The first mandrel 210A is disposed one at the front and one at the rear based on the width direction center line between the front and rear ends of the stack table 170. That is, the two first mandrels 210A are disposed at the front and rear, respectively, based on the width direction center line between the front end and the rear end of the stack table 170, so that the two first mandrels 210A are placed on the stack table ( It simultaneously moves forward from above the first side of the stack table 170 to the top of the stack table 170 and simultaneously moves backward to the outside of the stack table 170 from above the first side of the stack table 170.

The second mandrels 210B are disposed one at the front and one at the rear based on the width direction center line between the front and rear ends of the stack table 170. That is, the two second mandrels 210B are disposed at the front and rear, respectively, based on the width direction center line between the front end and the rear end of the stack table 170, so that the two second mandrels 210B are placed on the stack table (210B). It simultaneously moves forward from above the second side of the stack table 170 to the top of the stack table 170 and simultaneously moves backward from above the second side of the stack table 170 to the outside of the stack table 170.

The first mandrel (210A) and the second mandrel (210B) advance from the mandrel support frame 211 by a mandrel moving device and enter the stack table 170, or move backward from the mandrel support frame 211 to enter the stack table 170. ) It can be configured to fall out from above. The mandrel support frame 211 is configured to be supported on the main frame 10.

The mandrel moving device is rotatably mounted on one side of the mandrel support frame 211 and includes a pair of first ball screws arranged side by side in the longitudinal direction, which is the path between the front end and the rear end of the mandrel support frame 211. (227A) is coupled to one side of the mandrel support frame 211 and moves in the longitudinal direction, which is the path between the front end and the rear end of the mandrel support frame 211, and the first mandrel 210A is moved in the horizontal direction. A pair of side-by-side first mandrel support members 227B supporting the arrangement, and a first ball screw nut coupled to the first ball screw 227A and simultaneously coupled to the pair of first mandrel support members 227B ( 227C), a first mandrel movement drive motor (227D) supported on one side of the mandrel support frame 211, and a first drive pulley (227E) coupled to the motor shaft of the first mandrel movement drive motor (227D) ) and a first driven pulley (227F) coupled to the first ball screw (227A), and a first belt (227G) coupled to the first driving pulley (227E) and the first driven pulley (227F). It is composed by: The motor shaft of the first mandrel movement drive motor (227D) is arranged in the horizontal direction, and the first drive pulley (227E) and the first driven pulley (227F) are arranged in the vertical direction, respectively, of the first mandrel movement drive motor (227D). It is coupled to the motor shaft and the first ball screw (227A), and the first belt (227G) is coupled to the first driving pulley (227E) and the first driven pulley (227F). See Figure 7.

In addition, the mandrel moving device is rotatably mounted on the other side of the mandrel support frame 211 and includes a pair of devices arranged side by side in the longitudinal direction, which is the path between the front end and the rear end of the mandrel support frame 211. 2 It is coupled to the ball screw (228A) and the other side of the mandrel support frame 211 and moves in the longitudinal direction, which is the path between the front and rear ends of the mandrel support frame 211, and the second mandrel (210B) A pair of side-by-side second mandrel support members 228B supporting the horizontal arrangement, and a second mandrel support member 228B coupled to the second ball screw 228A and at the same time coupled to the pair of second mandrel support members 228B. A ball screw nut (228C), a second mandrel movement drive motor (228D) supported on the other side of the mandrel support frame 211, and a second mandrel movement drive motor (228D) coupled to the motor shaft of the second mandrel movement drive motor (228D). 8 driving pulley (228E), a second driven pulley (228F) coupled to the second ball screw (228A), and a second belt coupled to the second driving pulley (228E) and the second driven pulley (228F) It consists of (227G). The motor shaft of the second mandrel movement drive motor (228D) is arranged in the horizontal direction, and the second drive pulley (228E) and the second driven pulley (228F) are arranged in the vertical direction, respectively, of the second mandrel movement drive motor (228D). It is coupled to the motor shaft and the second ball screw (228A), and the eighth belt (228G) is coupled to the second driving pulley (228E) and the second driven pulley (228F).

In summary, the mandrel support member consists of two first mandrel support members and two second mandrel support members, two mandrel moving devices are provided at the front end of the mandrel support frame 211, and the mandrel support frame 211 ) are provided at the rear end side location. When viewed from above the mandrel support frame 211, two mandrel moving devices are provided, one each next to the front end of the table support frame 10TFS, and one each next to the rear end of the mandrel support frame 211. Mandrel moving devices are provided at a total of four locations, one each at the front, rear and left and right positions of the mandrel support frame 211. One mandrel is coupled to each of the four mandrel support members, and the mandrels are provided in a total of four places, one each at the front, rear, and left positions of the mandrel support frame 211. Four first mandrels (210A) and second mandrels (210B) are provided at the front, rear, left and right positions of the mandrel support frame 211. That is, two first mandrels 210A and two second mandrels 210B are supported and disposed on the mandrel support frame 211.

With the two first mandrels (210A) and two second mandrels (210B) pulled outward from the top of the stack table 170, four mandrel movement drive motors (the first mandrel movement drive motor 227D and the second mandrel movement drive motor 227D) When the motor shaft of the 2-mandrel movement drive motor (228D) but hereinafter referred to as the four mandrel movement drive motors for convenience of explanation) rotates in one direction, the drive pulley and the driven pulley (the first drive pulley (227E) and The second driven pulley (228F) is sometimes referred to as the driving pulley and driven pulley for convenience of explanation) and a ball screw (the first belt (227G) and the second belt (228G) are connected to the first ball screw (227A) by a belt. ) and the second ball screw (228A), but for convenience of explanation, are sometimes referred to as belt and ball screw) rotate in one direction and the ball screw nut moves forward (between the front and rear ends of the mandrel support frame 211). (advancing toward the center line in the width direction), the first mandrels 210A and second mandrels 210B at the above four locations advance onto the stack table 170. Two opposing first mandrels 210A advance upward on the first side of the stack table 170 and the other two opposing second mandrels 210B advance upward on the second side of the stack table 170. do.

With the first mandrels (210A) and second mandrels (210B) in four places advanced upward on the stack table 170, when the motor shaft of the four mandrel moving drive motors rotates in the other direction, the drive pulley and The ball screw rotates in the other direction by the driven pulley and the belt, and the ball screw nut moves backwards (reverses toward the width direction center line between the front and rear ends of the mandrel support frame 211) to connect the four positions. The first mandrel (210A) and the second mandrel (210B) move backwards on the stack table 170 and fall out. The two first mandrels 210A facing each other retract outward on the second side of the stack table 170 and the other two facing second mandrels 210B are on the second side of the stack table 170. Go backwards and fall out.

The separator 2C of the electrode separator stack 2 that is gripped by the feeding gripper 130 and moved toward the stack table 170 is caught on the side of the first mandrel 210A, causing the separator 2C to fold. It can be. The feeding gripper ( In the process of moving the stack table 170 toward the second side (the side opposite to the first side), the separator 2C of the electrode separator stack 2 is caught on the side of the first mandrel 210A. In this state, when the feeding gripper 130 grips the electrode separator laminate 2 and completely advances toward the second side of the stack table 170 and stops, the separator 2C is in a folded state. In this state, the feeding gripper 130 can be lowered to stack the electrode separator stack 2 in which the separator 2C is folded on the stack table 170 .

After the electrode separator laminate 2 is completely stacked on the stack table 170, the first mandrel 210A and the second mandrel 210B retreat outward from the stack table 170 and fall out, and the stack table 170 ) descends to the height of the electrode separator laminate 2, and the first mandrel 210A and the second mandrel 210B advance again above the stack table 170 and then descend to rest on the stack table 170. The stacked electrode separator laminate 2 is pressed from above.

In this state, the feeding gripper 130 is moved to return to the laminating part 70, grips the next electrode plate separator laminate 2 fed from the laminating part 70, and then carries it toward the stack table 170. Then, the next electrode separator laminate 2 is stacked on the electrode separator laminate 2 previously stacked on the stack table 170 through the same process as above, and this process is repeated to form a plurality of electrode separators on the stack table 170. An electrode assembly is formed by stacking a positive electrode plate (2A), a negative electrode plate (2B), and a folding separator (2C).

Meanwhile, the first mandrel 210A and the second mandrel 210B may be configured to be raised and lowered by a mandrel raising and lowering device. The mandrel raising and lowering device is mounted on the main frame 10 and includes a raising and lowering drive motor whose motor shaft is arranged in the vertical direction, a ball screw provided on the motor shaft of the raising and lowering drive motor, and a mandrel that is coupled to the ball screw and at the same time It consists of a ball screw nut coupled to the support frame 211, and when the motor shaft of the raising and lowering drive motor rotates in one direction and the ball screw also rotates in one direction, the ball screw nut rises and the mandrel support frame 211 also rotates. As it rises, the first mandrel (210A) and the second mandrel (210B) rise, and when the motor shaft of the raising and lowering drive motor rotates in the other direction and the ball screw also rotates in the other direction, the ball screw nut descends. As the mandrel support frame 211 also descends, the first mandrel (210A) and the second mandrel (210B) descend. In addition to the above structure, the mandrel raising and lowering device is configured so that any device that can raise and lower the first mandrel (210A) and the second mandrel (210B), such as a cylinder, can be adopted.

Additionally, the stack table 170 may also be configured to be raised and lowered by a table raising and lowering device. The table lift and lower device includes a table lift and lower drive motor 226 mounted on the mandrel support frame 211, a ball screw 226BS provided on the motor shaft of the table lift and lower drive motor 226, and the ball screw It consists of a ball screw nut (226BSN) coupled to (226BS) and simultaneously coupled to the stack table 170 (more precisely, coupled to the table support frame on which the stack table 170 is coupled to and supported at the upper end). When the motor shaft of the rising and falling drive motor 226 rotates in one direction and the ball screw (226BS) also rotates in one direction, the ball screw nut (226BSN) rises, the stack table 170 rises, and the table rises and falls. When the motor shaft of the drive motor 226 rotates in the other direction and the ball screw 226BS also rotates in the other direction, the ball screw nut 226BSN may descend and the stack table 170 may also descend. In addition to the above-mentioned structure for raising and lowering the table, any device that can raise and lower the stack table 170, such as a cylinder, can be used.

The stack table 170 is lowered by the height of the electrode separator stack 2 when the electrode separator laminate 2 is stacked layer by layer, and the first mandrel 210A and the second mandrel 210B are the stack table. It moves backwards from above the upper surface of the stack table 170 and the electrode separator stack 2 moves forward again to the top of the stack table 170 in a lowered state and then descends to form the electrode separator stack ( 2) is pressed at the top.

Additionally, a vision inspection unit 73 is provided between the laminating unit 70 and the stack table 170. The vision inspection unit 73 performs dimensional inspection and insulation inspection processes on the electrode separator laminate 2. The vision inspection unit 73 is equipped with a camera, and can perform dimensional inspection and insulation inspection processes of the electrode separator stack 2 by photographing the electrode separator stack 2 with the camera.

Meanwhile, according to the present invention, a plate separator supply step of supplying a separator (2C) between a reel positive electrode plate (2RA) and a reel negative electrode plate (2RB), and cutting the reel positive plate (2RA) supplied from the reel positive plate supply unit 20. A positive electrode cutting step of making a single positive electrode plate (2A), a negative electrode cutting step of making a single negative electrode plate (2B) by cutting the reel negative electrode plate (2RB) supplied from the reel negative electrode plate supply unit 30, and the positive electrode cutter 50 ) and a laminating step of laminating so that the separator (2C) is sandwiched between a single positive electrode plate (2A) and a single negative electrode plate (2B) cut by the cathode cutter 60, and the single positive electrode plate (2A) and the separator (2C) and the single negative electrode plate (2B) are laminated to the electrode separator laminate (2), gripped by the feeding gripper 130 and moving the electrode separator laminate upward to the stack table 170, and the feeding When the gripper 130 brings the electrode separator stack 2 toward the stack table 170, the mandrel 210 advances above the stack table 170 to separate the electrode separator stack 2 from the stack table 170. Including a folding step in which the separator 2C is caught on the mandrel 210 so that the separator 2C is folded when the electrode separator laminate 2 is completed moving to the upper surface of the stack table 170. A laminating and jet folding stacking method is provided, characterized in that it consists of:

The present invention is a laminating and jet folding stack method that includes a process of inserting notched electrode plates with the same dimensions and spacing, a process of laminating continuously inserted electrode plates and separators, and a dimensional inspection and insulation inspection process of the laminated electrode plate and separator laminate. , It includes a process of continuously folding (Z-Folding) the inspected electrode plate and separator laminate.

The laminating and jet folding stack method of the present invention is to cut the electrodes, more specifically, the reel positive electrode plate (2RA) and the reel negative electrode plate (2RB) to size and the gap between the electrode plates (between the positive electrode plate 2A and the negative electrode plate 2B). This is a process of manufacturing an electrode assembly by Z-folding (folding the separator (2C)) after going through a laminating process with the separator (2C) to match the gap. The electrode assembly is made with a separator between the positive electrode plate (2A) and the negative electrode plate (2B). (2C) means stacked.

The process of making an electrode assembly in which multiple layers of the electrode separator laminate 2 are stacked using the laminating and jet folding stack system according to the present invention having the above configuration is as follows.

The reel positive electrode plate supply unit 20 supplies a reel positive electrode plate (2RA) toward the laminating portion 70, the reel negative electrode plate supply portion 30 supplies a reel negative electrode plate 2RB toward the laminating portion 70, and the separator supply portion ( 40), a separator 2C is supplied toward the laminating portion 70 between the reel positive electrode plate 2RA and the reel negative electrode plate 2RB.

The reel positive electrode plate 2RA is cut using the anode cutter 50 to form a single positive electrode plate 2A, and the negative electrode cutter 60 is cut to form a single negative electrode plate 2B, which is formed in a laminating section. A single positive electrode plate (2A), a separator 2C, and a single negative electrode plate (2B) are supplied into the interior of (70).

In the laminating unit 70, a separator 2C is laminated between a single positive electrode plate 2A (hereinafter referred to as positive electrode plate 2A for convenience) and a single negative electrode plate 2B (hereinafter referred to as negative electrode plate 2B for convenience). to make the electrode separator laminate (2).

The electrode plate separator laminate (2) fed from the electrode separator laminate (2) is brought to the stack table 170 while being gripped by the feeding gripper 130, and a first mandrel ( 210A) and the second mandrel 210B advance from the first and second sides of the stack table 170, respectively, so that the separator 2C of the electrode separator stack 2 is caught on the first mandrel 210A. is in a state, and in this state, when the feeding gripper 130 continues to move toward the second side of the stack table 170, the separator 2C is folded by the first mandrel 210A, and the feeding gripper 130 When the separator 2C completely moves toward the second side of the stack table 170 and stops, the separator 2C is in a folded state between the positive electrode plate 2A and the negative electrode plate 2B.

Next, when the feeding gripper 130 is lowered while the first mandrel 210A and the second mandrel 210B are retracted from the stack table 170, the positive plate 2A and the negative plate 2B are placed on the stack table 170. ), the electrode plate separator laminate 2 is stacked with the separator 2C folded between them.

With the electrode separator laminate 2 stacked on the stack table 170, the first mandrel 210A and the second mandrel 210B enter the upper part of the stack table 170 and descend to rest on the stack table 170. The stacked electrode separator laminate 2 is pressed from above.

By repeatedly performing the above process, an electrode assembly can be made on the stack table 170 with a folded separator 2C interposed between a multi-layer positive electrode plate 2A and a multi-layer negative electrode plate 2B.

Therefore, the process of inserting the notched positive electrode plate (2A) and negative electrode plate (2B) with the same dimensions and spacing, the process of laminating the continuously inserted positive plate (2A) and negative electrode plate (2B) and the separator (2C), and the laminated electrode plate This involves performing a dimensional inspection and insulation inspection process of the separator stack (2), and a process of continuously Z-folding (folding the separator (2C)) of the inspected electrode separator stack (2), which is a bi-cell unit electrode. There is no need for the bi-cell process of making and folding by continuously supplying the separator (2C), which has the effect of simplifying the process and shortening the process time.

In addition, the present invention has the effect of reducing the resistance of the electrodes (resistance of the negative plate 2B and the positive plate 2A) and improving marketability.

Above, specific embodiments of the present invention have been described in detail. However, the spirit and scope of the present invention are not limited to these specific embodiments, and it is known by common knowledge in the technical field to which the present invention pertains that various modifications and variations can be made without changing the gist of the present invention. Anyone who has it will understand.

Therefore, the embodiments described above are provided to fully inform those skilled in the art of the present invention of the scope of the invention, and should be understood as illustrative in all respects and not restrictive. The invention is defined only by the scope of the claims.

2RA. Reil positive plate 2RB. reel cathode plate
2A. Positive plate 2B. negative plate
2C. Separator 2. Electrode separator laminate
20. Reil positive plate supply unit 22. Positive plate bobbin
24. Positive plate guide roll 30. Reil negative plate supply section
32. Negative plate bobbin 34. Negative plate guide roll
40. Separator supply unit 42. Separator bobbin
44. Separator guide roll 50. Anode cutter
60. Cathode cutter 70. Laminating part
150. Feeding gripper 124. Grip support frame
126. Grip operating unit 126A. grip drive motor
126B. Cam 126BH. cam hole
126C. Cam follower 126D. grip operating bracket
126E. Ball screw 126F. ballscrew nut
126G. Base grip bracket 132. First grip member
134. Second grip member 170. Stack table
210A. First mandrel 210B. 2nd mandrel
227A. 1st ball screw 227B. 1st mandrel support member
227C. 1st ball screw nut 227D. First mandrel movement drive motor
227E. 1st driving pulley 227F. 1st driven pulley
227G. 1st belt 228A. 2nd ball screw
228B. Second first mandrel support member 228C. 2nd ball screw nut
228D. Second mandrel movement drive motor 228E. 2nd driving pulley
228F. 2nd driven pulley 228G. 2nd belt
226. Table raising and lowering drive motor 227. Ball screw
228. Ballscrew nut

Claims (6)

A reel positive plate supply unit 20 that supplies a reel positive plate (2RA) wound in a roll shape to the positive plate bobbin 22;
A reel negative electrode plate supply unit 30 that supplies a reel negative electrode plate (2RB) wound in a roll shape to the negative plate bobbin 32;
A separator supply unit 40 that supplies a separator 2C between the reel positive electrode plate 2AR and the reel negative electrode plate 2BR;
An anode cutter 50 that cuts the reel positive plate (2RA) supplied from the reel positive plate supply unit 20;
A cathode cutter (60) for cutting the reel negative electrode plate (2RB) supplied from the reel negative plate supply unit 30;
A laminating unit 70 for laminating the separator 2C between the positive electrode plate 2A and the negative electrode plate 2B cut by the positive electrode cutter 50 and the negative electrode cutter 60;
A feeding gripper 130 that grips the electrode separator stack 2 in which the positive electrode plate 2A, the separator 2C, and the negative electrode plate 2B are laminated;
It is configured to include a stack table 170, which is moved by the feeding gripper 130 and on which the electrode plate separator laminate 2 is raised and stacked,
The first mandrel (210A) and the second mandrel (210B) advance from the mandrel support frame 211 by a mandrel moving device and enter onto the stack table 170, or move backward from the mandrel support frame 211 to reach the stack table 170. It is constructed to fall from the top,
The mandrel moving device is rotatably mounted on one side of the mandrel support frame 211 and includes a pair of first ball screws arranged side by side in the longitudinal direction, which is the path between the front end and the rear end of the mandrel support frame 211. (227A) is coupled to one side of the mandrel support frame 211 and moves in the longitudinal direction, which is the path between the front end and the rear end of the mandrel support frame 211, and the first mandrel 210A is moved in the horizontal direction. A pair of side-by-side first mandrel support members 227B supporting the arrangement, and a first ball screw nut coupled to the first ball screw 227A and simultaneously coupled to the pair of first mandrel support members 227B ( 227C), a first mandrel movement drive motor (227D) supported on one side of the mandrel support frame 211, and a first drive pulley (227E) coupled to the motor shaft of the first mandrel movement drive motor (227D) ) and a first driven pulley (227F) coupled to the first ball screw (227A), and a first belt (227G) coupled to the first driving pulley (227E) and the first driven pulley (227F). It is composed of,
The motor shaft of the first mandrel movement drive motor (227D) is arranged in the horizontal direction, and the first drive pulley (227E) and the first driven pulley (227F) are arranged in the vertical direction, respectively, forming the first mandrel movement drive motor (227D). is coupled to the motor shaft and the first ball screw (227A), and the first belt (227G) is coupled to the first driving pulley (227E) and the first driven pulley (227F),
The mandrel moving device is rotatably mounted on the other side of the mandrel support frame 211 and includes a pair of second balls arranged side by side in the longitudinal direction, which is the path between the front end and the rear end of the mandrel support frame 211. It is coupled to the screw 228A and the other side of the mandrel support frame 211 and moves in the longitudinal direction, which is the path between the front and rear ends of the mandrel support frame 211, and the second mandrel 210B is horizontal. A pair of side-by-side second mandrel support members 228B supported to be arranged in the direction, and a second ball screw coupled to the second ball screw 228A and simultaneously coupled to the pair of second mandrel support members 228B. A nut 228C, a second mandrel movement drive motor 228D supported on the other side of the mandrel support frame 211, and an eighth drive coupled to the motor shaft of the second mandrel movement drive motor 228D. A pulley (228E), a second driven pulley (228F) coupled to the second ball screw (228A), and a second belt (227G) coupled to the second driving pulley (228E) and the second driven pulley (228F). ) and consists of,
The motor shaft of the second mandrel movement drive motor (228D) is arranged in the horizontal direction, and the second drive pulley (228E) and the second driven pulley (228F) are arranged in the vertical direction, respectively, to form a second mandrel movement drive motor (228D). It is coupled to the motor shaft and the second ball screw (228A), and the eighth belt (228G) is coupled to the second driving pulley (228E) and the second driven pulley (228F). Laminating and jetting. Folding stack system.
According to paragraph 1,
When the feeding gripper 130 brings the electrode separator stack 2 toward the stack table 170, it advances upward on the stack table 170 and separates the electrode separator stack 2 from the separator 2C. ) is caught so that the separator 2C is folded when the electrode separator laminate 2 is moved to the upper surface of the stack table 170; Laminating and jet folding stacking systems.
According to paragraph 2,
The mandrel 210 includes a first mandrel 210A advancing from the first side of the stack table 170 to the upper surface of the stack table 170, and the stack on the second side of the stack table 170. The electrode separator laminate 2 includes a second mandrel 210B that advances to the upper surface of the table 170, and is gripped by the feeding gripper 130 and moved toward the stack table 170. A laminating and jet folding stack system, characterized in that the separator (2C) is hung on the side of the first mandrel (210A) to fold the separator (2C).
According to paragraph 3,
The stack table 170 is lowered by the thickness of the electrode separator stack 2 when the electrode separator laminate 2 is stacked layer by layer, and the first mandrel 210A and the second mandrel 210B moves backwards from above the upper surface of the stack table 170, then advances again above the stack table 170 in a state in which the stack table 170 and the electrode separator laminate 2 are lowered, and then descends to the upper surface of the stack table 170. A laminating and jet folding stack system characterized in that it is configured to press the electrode separator laminate (2) from above.
According to paragraph 1,
A vision inspection unit 73 is provided between the laminating unit 70 and the stack table 170 to perform dimensional inspection and insulation inspection processes of the electrode separator laminate 2 by the vision inspection unit 73. A laminating and jet folding stack system comprising:
A separator between the reel positive electrode plate (2RA) wound in a roll shape on the positive plate bobbin 22 of the reel positive plate supply unit 20 and the reel negative electrode plate (2RB) wound in a roll shape on the negative electrode plate bobbin 32 of the reel negative plate supply unit 30. (2C) supplying a electrode plate separator;
An anode cutting step of cutting the reel positive plate (2RA) supplied from the reel positive plate supply unit 20 to make a single positive electrode plate (2A);
A cathode cutting step of cutting the reel cathode plate (2RB) supplied from the reel cathode plate supply unit 30 to make a single sheet of cathode plate (2B);
A laminating step of laminating so that the separator (2C) is interposed between the sheet of the positive electrode plate (2A) and the sheet of the negative electrode plate (2B) cut by the anode cutter 50 and the cathode cutter 60;
The electrode plate separator laminate 2, in which the single positive electrode plate 2A, the separator 2C, and the single negative electrode plate 2B are laminated, is gripped by a feeding gripper 130 and moved upward on the stack table 170. Electrode separator laminate transfer step;
When the feeding gripper 130 brings the electrode separator laminate 2 toward the stack table 170, the mandrel 210 advances above the stack table 170 to form the electrode separator laminate 2. A folding step in which the separator 2C is caught on the mandrel 210 so that the separator 2C is folded when the electrode separator laminate 2 is completed moving to the upper surface of the stack table 170; It is composed including,
The first mandrel (210A) and the second mandrel (210B) advance from the mandrel support frame 211 by a mandrel moving device and enter onto the stack table 170, or move backward from the mandrel support frame 211 to reach the stack table 170. It is constructed to fall from the top,
The mandrel moving device is rotatably mounted on one side of the mandrel support frame 211 and includes a pair of first ball screws arranged side by side in the longitudinal direction, which is the path between the front end and the rear end of the mandrel support frame 211. (227A) is coupled to one side of the mandrel support frame 211 and moves in the longitudinal direction, which is the path between the front end and the rear end of the mandrel support frame 211, and the first mandrel 210A is moved in the horizontal direction. A pair of side-by-side first mandrel support members 227B supporting the arrangement, and a first ball screw nut coupled to the first ball screw 227A and simultaneously coupled to the pair of first mandrel support members 227B ( 227C), a first mandrel movement drive motor (227D) supported on one side of the mandrel support frame 211, and a first drive pulley (227E) coupled to the motor shaft of the first mandrel movement drive motor (227D) ) and a first driven pulley (227F) coupled to the first ball screw (227A), and a first belt (227G) coupled to the first driving pulley (227E) and the first driven pulley (227F). It is composed of,
The motor shaft of the first mandrel movement drive motor (227D) is arranged in the horizontal direction, and the first drive pulley (227E) and the first driven pulley (227F) are arranged in the vertical direction, respectively, forming the first mandrel movement drive motor (227D). is coupled to the motor shaft and the first ball screw (227A), and the first belt (227G) is coupled to the first driving pulley (227E) and the first driven pulley (227F),
The mandrel moving device is rotatably mounted on the other side of the mandrel support frame 211 and includes a pair of second balls arranged side by side in the longitudinal direction, which is the path between the front end and the rear end of the mandrel support frame 211. The screw 228A is coupled to the other side of the mandrel support frame 211 and moves in the longitudinal direction, which is the path between the front and rear ends of the mandrel support frame 211, and the second mandrel 210B is horizontal. A pair of side-by-side second mandrel support members 228B supported to be arranged in the direction, and a second ball screw coupled to the second ball screw 228A and simultaneously coupled to the pair of second mandrel support members 228B. A nut 228C, a second mandrel movement drive motor 228D supported on the other side of the mandrel support frame 211, and an eighth drive coupled to the motor shaft of the second mandrel movement drive motor 228D. A pulley (228E), a second driven pulley (228F) coupled to the second ball screw (228A), and a second belt (227G) coupled to the second driving pulley (228E) and the second driven pulley (228F). ) and consists of,
The motor shaft of the second mandrel movement drive motor (228D) is arranged in the horizontal direction, and the second drive pulley (228E) and the second driven pulley (228F) are arranged in the vertical direction, respectively, to form a second mandrel movement drive motor (228D). It is coupled to the motor shaft of the second ball screw (228A), and the eighth belt (228G) is coupled to the second driving pulley (228E) and the second driven pulley (228F),
With the two first mandrels (210A) and two second mandrels (210B) pulled outward from the top of the stack table 170, the first mandrel movement drive motor (227D) and the second mandrel movement drive motor (228D) ) When the motor shaft rotates in one direction, the first ball screw (227A) and the second driving pulley (227E), the second driven pulley (228F), the first belt (227G), and the second belt (228G) 2The ball screw (228A) rotates in one direction, the ball screw nut advances, and the first mandrel (210A) and second mandrel (210B) in four places advance onto the stack table (170),
With the first mandrels (210A) and second mandrels (210B) in four places advanced upward on the stack table 170, when the motor shaft of the four mandrel moving drive motors rotates in the other direction, the drive pulley and The ball screw rotates in the other direction by the driven pulley and the belt, and the ball screw nut moves backward so that the two opposing first mandrels (210A) move backward outward on the second side of the stack table 170 and fall out. The two opposing second mandrels 210B move backwards on the second side of the stack table 170 and fall out,
The separator 2C of the electrode separator stack 2 that is gripped by the feeding gripper 130 and moved toward the stack table 170 is caught on the side of the first mandrel 210A, causing the separator 2C to fold. In this state, when the feeding gripper 130 grips the electrode separator laminate 2 and completely advances toward the second side of the stack table 170 and stops, the separator 2C is in a folded state. . In this state, the feeding gripper 130 can be lowered to stack the electrode separator laminate 2 in which the separator 2C is folded on the stack table 170,
After the electrode separator laminate 2 is completely stacked on the stack table 170, the first mandrel 210A and the second mandrel 210B retreat outward from the stack table 170 and fall out, and the stack table 170 ) descends to the height of the electrode separator laminate 2, and the first mandrel 210A and the second mandrel 210B advance again above the stack table 170 and then descend to rest on the stack table 170. The stacked electrode separator laminate 2 is pressed from above, and in this state, the feeding gripper 130 is moved to return to the laminating part 70, and the next electrode separator fed from the laminating part 70 is held. After gripping the laminate (2), bring it to the stack table (170) and place the next electrode separator laminate (2) on the electrode separator laminate (2) that was previously stacked on the stack table (170) through the same process as above. Laminating and jet folding, characterized in that the electrode assembly is formed by stacking and repeating this process to form an electrode assembly in which the positive electrode plate 2A, the negative electrode plate 2B, and the folding separator 2C are stacked in multiple layers on the stack table 170. Stack method.