KR102661169B1 - Faulty part removig apparatus for being used in manufacturing electrode of secondary battery - Google Patents

Abstract

The present invention is a secondary battery electrode manufacturing process for automatically performing the task of discarding a defective section previously marked on the fabric used in the process for manufacturing an electrode of a secondary battery and then connecting the fabric located before and after the defective section. It is about a device for disposing of defective sections.

Description

Bad section disposal device for secondary battery electrode manufacturing process {FAULTY PART REMOVIG APPARATUS FOR BEING USED IN MANUFACTURING ELECTRODE OF SECONDARY BATTERY}

The present invention relates to a device for discarding defective sections for the secondary battery electrode manufacturing process that can be used in the process for manufacturing electrodes for secondary batteries. More specifically, the present invention relates to a device for disposing of defective sections previously marked on the fabric used in the above process. This relates to a defective section disposal device for the secondary battery electrode manufacturing process that automatically performs the task of connecting fabric located before and after the defective section.

Secondary batteries are rechargeable batteries and are used as batteries for various devices such as cell phones, laptops, camcorders, and automobiles. And secondary batteries have a structure in which pre-manufactured electrodes (anode, cathode) and separators are alternately stacked, for example, an anode (cathode)/separator/cathode (anode)/separator/anode (cathode), etc.

The process for manufacturing the electrodes (anode, cathode) of the above secondary battery generally includes a coating process, a roll press process, a slitting process, a notching process, and a drying process. And since defects may occur in these processes, various technologies are known to display defective sections containing the defects.

For example, Unexamined Patent Publication No. 10-2006-0027260 (Inspection device for electrode current collector and inspection method using same), Publication Patent Publication No. 10-2006-0027261 (Inspection device for electrode current collector and inspection method using same), Published Patent Publication No. 10-2006-0034126 (Inspection device for electrode current collector and inspection method using the same) discloses a technology for marking defect marks at the starting and ending points of defective sections created during the coating process using methods such as laser, inkjet, and punching. This is disclosed.

Meanwhile, defective sections whose starting and ending points are indicated by defect marks must be discarded, and after discarding the defective section, the fabric before and after the defective section must be connected. Currently, this work is performed in Publication Patent Publication No. 10-2023-0021479. As disclosed in (electrode loss amount measuring device and measurement method using reference points, roll map of electrode process with reference points indicated, roll map creation method and creation system), it is performed manually by the operator.

Publication of Patent No. 10-2006-0027260 (Inspection device for electrode current collector and inspection method using the same) Publication of Patent No. 10-2006-0027261 (Inspection device for electrode current collector and inspection method using the same) Publication of Patent No. 10-2006-0034126 (Inspection device for electrode current collector and inspection method using the same) Publication of Patent No. 10-2023-0021479 (electrode loss amount measuring device and measuring method using reference points, roll map of electrode process with reference points indicated, method and writing system for creating the roll map)

Therefore, the present invention is a secondary battery electrode manufacturing process that can automatically perform the conventional work performed manually in the secondary battery electrode manufacturing process, that is, discarding the defective section and connecting the fabric before and after the discarded defective section. We would like to provide a disposal device for defective section.

In the present invention, the fabric used in manufacturing electrodes for secondary batteries is first cut at a predetermined cutting point to separate it into a defective section and a front good section in front of it, and the fabric is secondarily cut at the cut point to cut the defective section. and a cutter separating it into a rear good section behind it; a support plate supporting the fabric at the rear of the cutting point; A traction plate that supports the fabric by facing the support plate at the cutting point before the first cutting, advances the front good section after the first cutting, and retracts it to its original position after the second cutting; An empty roll with a portion of the outer surface as an adsorption area, a recovery roll for recovering the defective section; Provided is a defective section disposal device for a secondary battery electrode manufacturing process including an adsorption roll provided to adsorb an adhesive tape. Here, in a state in which the front good section is advanced by the traction plate, the recovery roll adsorbs the front end of the bad section formed by the primary cutting to the adsorption area and then rotates to wrap around the bad section.

When the front end of the defective section is adsorbed to the adsorption area, the suction roll moves to bring the front end of the defective section into close contact with the adsorption area.

The adhesive tape is a good section adhesive tape for connecting the front good section and the rear good section, and the good section adhesive tape is adsorbed to the suction roll with the adhesive surface facing outward. And the suction roll does not rotate when moving to bring the front end of the defective section into close contact with the suction area.

In the present invention, the fabric used in manufacturing electrodes for secondary batteries is first cut at a predetermined cutting point to separate it into a defective section and a front good section in front of it, and the fabric is secondarily cut at the cut point to cut the defective section. and a cutter separating it into a rear good section behind it; a support plate supporting the fabric at the rear of the cutting point; A traction plate that supports the fabric by facing the support plate at the cutting point before the first cutting, advances the front good section after the first cutting, and retracts it to its original position after the second cutting; For recovering the defective section, a recovery roll winding the previously recovered turning water defective section; Disposal of a defective section for a secondary battery electrode manufacturing process including a suction roll adsorbing a defective section adhesive tape with the adhesive side facing outward for connecting the front end of the defective section formed by the primary cutting to the rotating defective section. Devices are also provided. At this time, after the front good section is advanced by the traction plate, the suction roll and the recovery roll rotate in opposite directions and the defective section advances, and the defective section adhesive tape moves between the suction roll and the recovery roll. It partially overlaps the front end of the defective section and connects the defective section to the turning defective section, and the recovery roll winds the defective section connected to the turning defective section.

While the recovery roll wraps around the defective section, the suction roll falls away from the defective section, and on the suction roll separated from the defective section, a good section adhesive tape for connecting the front good section and the rear good section is attached with the adhesive side facing outward. It is adsorbed so that

Meanwhile, after the traction plate moves the front good section backwards to its original position, the suction roll rolls while pressing the rear good section supported on the support plate and connects the rear good section and the front good section to the good section. Connect with adhesive tape.

The defective section wound around the recovery roll is pressed and wound toward the recovery roll by a pinch roll, and the pressure of the pinch roll is made so that the defective section is not unwound from the recovery roll after the secondary cutting.

The traction plate is composed of a suction plate.

According to the present invention, when the first defective section contained in the fabric used in the manufacture of electrodes for secondary batteries is recovered on an empty recovery roll, the front end of the first defective section is adsorbed on the empty recovery roll, so that all the parts recovered on the recovery roll are absorbed. The defective section can be easily separated from the recovery roll whose adsorption force has been released.

In addition, according to the present invention, when the front end of the first defective section is adsorbed to the adsorption area of the empty recovery roll, the front end of the first defective section of the relatively stiff fabric is also adhered to the adsorption area by the empty recovery roll. It can be clearly absorbed into the area.

In addition, according to the present invention, since the suction roll adheres the front end of the first defective section to the suction area without rotation while adsorbing the adhesive tape of the good section, the problem that occurs when the suction roll rotates (the adhesive tape leaves the original position) is prevented. The problem of having to return the adhesive tape in a good section to its original position is prevented.

In addition, according to the present invention, when the subsequent defective section after the first defective section is recovered on a recovery roll that wraps around the previously recovered defective section, the front end of the subsequent defective section is easily recovered by the adsorption roll adsorbing the adhesive tape of the defective section. And it can be quickly connected to a poor turning section.

In addition, according to the present invention, since the good section adhesive tape is adsorbed on the suction roll while the subsequent defective section is recovered on the recovery roll, the time required to adsorb the good section adhesive tape does not result in any increase in the total work time. .

Additionally, according to the present invention, the good section before and after the bad section can be connected simply and quickly by the suction roll adsorbing the adhesive tape of the good section.

Additionally, according to the present invention, the defective section recovered on the recovery roll does not come loose from the recovery roll even without adhesion after secondary cutting.

Figure 1 shows a state in which the starting point of the first defective section reaches immediately after the cutting point in the defective section disposal device for the secondary battery electrode manufacturing process according to the present invention.
FIG. 2 is for explaining the process of separating the first defective section and the front good section in the defective section disposal device shown in FIG. 1.
FIGS. 3 and 4 are for explaining the process of recovering the first defective section from the defective section disposal device shown in FIG. 1.
FIG. 5 is for explaining the process of connecting the front good section and the rear good section in the bad section disposal device shown in FIG. 1.
Figure 6 shows a state in which the starting point of the second defective section reaches immediately after the cutting point in the defective section disposal device for the secondary battery electrode manufacturing process according to the present invention.
FIG. 7 is for explaining the process of separating the second defective section and the front good section in the defective section disposal device shown in FIG. 6.
FIGS. 8 to 10 are for explaining the process in which the second defective section is recovered from the defective section disposal device shown in FIG. 6.
FIG. 11 is for explaining the process of connecting the front good section and the rear good section in the bad section disposal device shown in FIG. 6.

Hereinafter, preferred embodiments of the defective section disposal device for the secondary battery electrode manufacturing process according to the present invention will be described in detail with reference to the drawings. The terms or words used below should not be construed limited to their usual or dictionary meanings, and based on the principle that an inventor can appropriately define the concept of a term in order to explain his or her invention in the best way, It should be interpreted with meaning and concept consistent with the technical idea of the present invention.

The defective section disposal device 100 for the secondary battery electrode manufacturing process according to the present invention is installed in the secondary battery electrode manufacturing process line (coating process line, roll press process line, slitting process line, notching process line, etc.), After discarding the defective section (14) included in the fabric (12, 14, 16) used in will be. Meanwhile, the fabrics 12, 14, and 16 are provided with a mark (not shown) indicating the starting point (P1) of the defective section 14 and a mark (not shown) indicating the ending point (P2) of the defective section 14. It is pre-marked. Although the defective section end point P2 is located slightly behind the actual end point of the defective section 14, it is described as the defective section end point for convenience.

First, the fabrics 12, 14, and 16 advance from the rear to the front, and at this time, the front good section 12 enters the corresponding process (coating process, roll press process, slitting process, notching process, etc.). Then, when the starting point (P1) reaches immediately after the predetermined cutting point, the forward movement of the fabrics (12, 14, and 16) stops, resulting in a state as shown in Figure 1. Whether the starting point P1 has been reached immediately after the cutting point can be detected through a sensor (not shown) that recognizes the mark. Meanwhile, the recovery roll 170 in FIG. 1 is an empty recovery roll 170 in which the defective section 14 is not wound at all.

As shown in FIG. 1, the defective section disposal device 100 as described above includes a cutter 110, a support plate 120, a traction plate 130, a feeder 140, a suction roll 150a, and a recovery plate. Includes roll 170.

The cutter 110 is fixed to the cylinder 112 and moves up and down when the cylinder 112 operates. And the cylinder 112 is installed on the moving block 152 so that it can move back and forth in the left and right directions between the maximum left position and the maximum right position. Another cylinder (not shown) is installed in the moving block 152 to move the cylinder 112 left and right. The moving block 152 is installed on a frame (not shown) to enable forward and backward movement. Here, the frame refers to a member that forms the overall frame of the defective section disposal device 100, and the same applies hereinafter.

The support plate 120 is installed on the frame to be located behind the cutting point and supports the fabric. The traction plate 130 is located in front of the support plate 120 and is installed on the frame so that it can move back and forth. When the traction plate 130 is in the rear position, it faces the support plate 120 with a gap G in between, and the cutting point is where the gap G is located above. The back and forth movement of the traction plate 130 may be achieved by a cylinder (not shown) installed on the frame. This traction plate 130 is composed of a suction plate with the upper surface as the suction surface.

The feeder 140 consists of a guide roll 142 and a drive roll 144. The guide roll 142 is installed on the frame to guide the movement of the fabric, and the drive roll 144 is installed on the frame to move up and down and driven by a motor (not shown). The drive roll 144 in the lowered position presses the fabrics 12, 14, and 16 supported by the guide roll 142. A rotating cylinder may be used instead of the drive roll 144 and the motor.

The suction roll (150a) is coupled to the bracket (B) so that it can rotate around an axis extending left and right, has a portion of its outer surface as an adsorption area, and is rotated by a motor (not shown). And the bracket (B) is provided to be raised and lowered by a cylinder (not shown) installed on the moving block 152. In the adsorption area of the adsorption roll 150a, the good section adhesive tape T1 and the defective section adhesive tape T2 (see FIG. 6) are adsorbed with their adhesive surfaces facing outward. Meanwhile, Figure 1 shows the good section adhesive tape T1 being adsorbed on the suction roll 150a in the 12 o'clock direction.

The recovery roll 170 is located at the bottom of the traction plate 130 in the rear position, is installed on the frame so that it can be lifted up and down, rotates by a motor (not shown), and turns a portion of the outer surface into an adsorption area. It consists of a suction roll. In front of the recovery roll 170, a pinch roll 172, which is an idle roll, is provided so that it can reciprocate back and forth. The pinch roll 172 is located at approximately 2 o'clock in the recovery roll 170, as shown in FIG. 1. The back and forth movement of the pinch roll 172 may be achieved by a cylinder (not shown) installed on the frame. This cylinder (not shown) is installed on the frame so that it can be lifted up and down, and the reason is to raise and lower the pinch roll 172 together with the recovery roll 170.

Hereinafter, the operation process of the defective section disposal device 100 will be described.

When the sensor detects that the starting point (P1) of the first defective section (14) has reached immediately after the cutting point, the forward movement of the fabrics (12, 14, and 16) stops, resulting in a state as shown in Figure 1. In this state, the support plate 120 and the traction plate 130 in the backward position support the fabrics 12 and 14 while forming a gap G at the cutting point, and the empty recovery roll 170 and the moving block ( 152) is in the initial position, and the good section adhesive tape (T1) is adsorbed on the suction roll (150a).

When the forward movement of the fabrics 12, 14, and 16 is stopped as shown in Figure 1, the cylinder 112 at the maximum rightward position (or maximum leftward position) lowers the cutter 110 and then moves to the maximum leftward position (or maximum rightward position). ), then the fabric is first cut at the cutting point by the cutter 110 moving along the gap G as shown in Figure 2, forming the first defective section 14 and It is separated into a front good section (12). In addition, the traction plate 130 exerts an adsorption force when the cylinder 112 lowers the cutter 110 to adsorb the front good section 12, and after the first cutting is made, as shown in FIG. 2 Likewise, it advances to a predetermined forward position while adsorbing the front good section 12. Meanwhile, after the first cutting, the cylinder 112 raises the cutter 110 to the initial position.

When the traction plate 130 advances, the dancer roll 160 installed on the frame to be located in front of the traction plate 130 moves downward and pulls the front good section 12, which is the front good section 12. This is to keep the tension constant. The dancer roll 160 may be omitted.

After the front good section 12 is advanced as described above by the traction plate 130, as shown in FIG. 3, the drive roll 144 of the feeder 140 descends and presses the fabric 14. , the empty recovery roll 170 and pinch roll 172 rise simultaneously. And in this state, as the drive roll 144 rotates, the front end 14a of the first defective section 14 crosses the top of the empty recovery roll 170 (at the 12 o'clock position) and moves to the front thereof, as shown in FIG. Advance until At this time, the adsorption area of the empty recovery roll 170 is the area from the 12 o'clock direction to the 1 o'clock direction. In this state, when the empty recovery roll 170 exerts adsorption power, the front end 14a of the first defective section 14 is bent and adsorbed to the adsorption area.

On the other hand, some of the fabrics 12, 14, and 16 used in the secondary battery electrode manufacturing process may be so stiff that they cannot be bent by the adsorption force alone. To prepare for this case, in the present invention, in a state in which the adsorption force is exerted, the adsorption roll 150a brings the front end 14a of the first defective section 14 into close contact with the adsorption area of the empty recovery roll 170. This close contact first causes the suction roll 150a to descend to pressurize the defective section 14 supported by the recovery roll 170, and then the moving block 152 moves forward as indicated by the two arrows in FIG. 3. This can be achieved by simultaneously lowering the suction roll (150a).

If the suction roll (150a) rotates while the above adhesion is achieved, the good section adhesive tape (T1) deviates from its original position (12 o'clock direction), and a follow-up operation is required to return the good section adhesive tape (T1) to its original position. This is needed. Therefore, it is better not to rotate the suction roll 150a while the adhesion is achieved.

After the front end (14a) of the first defective section (14) is adsorbed on the empty recovery roll (170) through the above process, the moving block (152) moves backwards to the initial position, and the adsorption roll (150a) returns to the initial position. As it rises, the empty recovery roll 170 rotates by the motor and winds the defective section 170.

Then, as shown in FIG. 4, when the end point P2 of the first defective section 14 reaches immediately after the cutting point, the rotation of the recovery roll 170 and the forward movement of the defective section 14 stop. Afterwards, the cylinder 112 at the maximum leftward position (or maximum rightward position) lowers the cutter 110 and then moves rightward (or leftward) to the maximum rightward position (or maximum leftward position), and then as shown in FIG. 4 Likewise, the fabric is cut twice at the cutting point by the cutter 110 and separated into a first defective section 14 and a rear good section 16.

After the above secondary cutting of the fabric is performed, as shown in Figure 5, the driving roll 144 rises to the initial position, and the recovery roll 170 wrapped around the first defective section 14 is a pinch roll ( 172), it descends only to a position higher than the initial position, and the traction plate 130 moves backward to the backward position while maintaining the adsorption force [at this time, the dancer roll 160 also returns to the initial position]. At this time, the rear end 14b of the first defective section 14 wound around the recovery roll 170 is not glued, but is not released from the recovery roll 170 due to the pinch roll 172.

Afterwards, as shown in FIG. 5, the moving block 152 moves backward and the suction roll 150a descends, and the suction roll 150a presses the rear good section 16 placed on the support plate 120. In this state, as indicated by the two arrows in FIG. 5, the moving block 152 advances and the suction roll (150a) rotates, causing the suction roll (150a) to roll. In this process, the good section adhesive tape (T1) is It is attached to both the rear good section (16) and the front good section (12). Meanwhile, the moment the good section adhesive tape T1 contacts the rear good section 16, the adsorption force of the suction roll 150a is released.

After the rear good section 16 and the front good section 12 are connected as above by the good section adhesive tape T1, the traction plate 130 releases the suction force, and the suction roll 150a rises to the initial position. And the moving block 152 advances to the initial position. Afterwards, the fabric 12 and 16 are advanced and the process proceeds. When the moving block 152 and the suction roll 150a return to their initial positions, the defective section adhesive tape T2 is adsorbed to the suction area of the suction roll 150a.

This state continues, and when the sensor detects that the starting point (P1) of the second defective section (14) has reached immediately after the cutting point, the forward movement of the fabric (12, 14, and 16) stops, resulting in a state as shown in Figure 6. . The state in FIG. 6 is different from the state in FIG. 1 only in that the defective section adhesive tape (T2) is adsorbed on the suction roll (150a) and the recovery roll (170) is wound around the first defective section (14). .

When the state of FIG. 6 is reached, as described above, the process of the cutter 110 descending, the traction plate 130 exerting adsorption force to adsorb the front good section 12, and the cutter 110 cutting the fabric into 1 A process of cutting the car and separating it into the second bad section 14 and the front good section 12 is performed, and the traction plate 130 moves forward while adsorbing the front good section 12. The state in which these processes are performed is shown in Figure 7.

When the state of FIG. 7 is reached, as shown in FIG. 8, the cutter 110 rises to the initial position, the drive roll 144 of the feeder 140 descends to press the fabric 14, and the first defect is produced. The recovery roll 170 and the pinch roll 172 wound around the section 14 rise simultaneously, and the suction roll 150a descends. Afterwards, the driving roll 144, the recovery roll 170, and the suction roll 150a all rotate, and as shown in the enlarged view of FIG. 8, about the front half of the defective section adhesive tape T2 is connected to the recovery roll 170. When passing between the suction rolls (150a), it is adhered to the first defective section (14), and the remaining half overlaps the front end (14a) of the advancing second defective section (14) with the recovery roll (170) and the suction roll. When passing between (150a), it is adhered to the front end (14a) of the second defective section (14), and thus the front end (14a) of the second defective section (14) is connected to the first defective section (14). Meanwhile, when the defective section adhesive tape T2 begins to pass between the recovery roll 170 and the suction roll 150a, the suction force of the suction roll 150a is released.

After the first and second defective sections 14 are connected as above, the suction roll 150a rises to the initial position as shown in FIG. 9, and then the good section is placed in the suction area of the suction roll 150a. The adhesive tape (T1) is adsorbed. Then, the drive roll 144 and the recovery roll 170 continue to rotate, and in the meantime, the second defective section 140 advances and is wound around the recovery roll 170. Then, when the end point P2 of the second defective section 14 reaches immediately after the cutting point, the driving roll 144 and the recovery roll 170 stop, resulting in the state shown in FIG. 9.

Afterwards, as shown in FIG. 10, after the cutter 110 descends, the fabric is cut twice and separated into a second defective section 14 and a rear good section 16 in the manner described above.

After this secondary cutting is performed, as described above, the drive roll 144 and the cutter 110 rise to the initial position, and the recovery roll 170 wound around the second defective section 14 is pinched ( A process of descending with 172), a process of moving backwards to the backward position while the traction plate 130 continues to maintain suction power, and a process of lowering the suction roll (150a) after the moving block 152 moves backwards are performed. The state in which these processes are performed is shown in Figure 11.

11, as described above, the rear good section 16 and the front good section 12 are connected to the good section adhesive tape T1 through the forward movement of the moving block 152 and the rotation of the suction roll 150a. A process in which the traction plate 130 releases the suction force, a process in which the moving block 152 and the suction roll 150a return to their initial positions, and a process in which the fabrics 12 and 14 move forward are performed. When the moving block 152 and the suction roll 150a return to their initial positions, the defective section adhesive tape T2 is adsorbed to the suction area of the suction roll 150a.

Meanwhile, if there is at least one more defective section 14 behind the second defective section 14, the above-described processes applied to the second defective section 14 are repeated for each defective section 14. And the process of adsorbing the good section adhesive tape (T1) and the bad section adhesive tape (T2) to the adsorption area of the adsorption roll (150a) is performed through means such as an automatic adhesive tape supply device disclosed in Patent Registration No. 10-2599538. It can be done automatically.

As described above, although the present invention has been described with limited examples and drawings, the present invention is not limited thereto, and the technical idea of the present invention and the following will be understood by those skilled in the art to which the present invention pertains. Of course, various modifications and variations can be made within the scope of equivalency of the claims to be described, and the above-described embodiments can be combined in various ways.

12: Fabric (front good section) 14: Fabric (defective section)
16: Fabric (rear good section)
100: Disposal device for defective sections for secondary battery electrode manufacturing process
110: cutter 112: cylinder
120: Support plate 130: Traction plate (adsorption plate)
140: Feeder 142: Guide roll
144: driving roll 150a: suction roll
152: moving block 160: dancer roll
170: Recovery roll (adsorption roll) 172: Pinch roll
P1: Starting point of defective section P2: Ending point of defective section
G: Gap (cut point) T1: Good section adhesive tape
T2: Adhesive tape for defective section

Claims (8)

When manufacturing secondary battery electrodes, the fabric used is first cut at a predetermined cutting point to separate it into a defective section and the front good section in front of it, and the fabric is secondarily cut at the cut point to cut the defective section and the front good section behind it. A cutter that separates the rear good section;
a support plate supporting the fabric at the rear of the cutting point;
A traction plate that supports the fabric by facing the support plate at the cutting point before the first cutting, advances the front good section after the first cutting, and retracts it to its original position after the second cutting;
An empty roll with a portion of the outer surface as an adsorption area, a recovery roll for recovering the defective section;
Includes an adsorption roll provided to adsorb the adhesive tape,
In a state in which the front good section is advanced by the traction plate, the recovery roll adsorbs the front end of the bad section formed by the primary cutting to the adsorption area and then rotates to wind the bad section. A secondary battery electrode manufacturing process. Disposal device for defective section. According to paragraph 1,
When the front end of the defective section is adsorbed to the adsorption area, the adsorption roll moves to bring the front end of the defective section into close contact with the adsorption area. According to paragraph 2,
The adhesive tape is a good section adhesive tape for connecting the front good section and the rear good section, and the good section adhesive tape is adsorbed to the suction roll so that the adhesive surface faces outward, and the suction roll is adsorbed to the defective section. A defective section disposal device for the secondary battery electrode manufacturing process that does not rotate when moved to bring the front end into close contact with the adsorption area. When manufacturing secondary battery electrodes, the fabric used is first cut at a predetermined cutting point to separate it into a defective section and the front good section in front of it, and the fabric is secondarily cut at the cut point to cut the defective section and the front good section behind it. A cutter that separates the rear good section;
a support plate supporting the fabric at the rear of the cutting point;
A traction plate that supports the fabric by facing the support plate at the cutting point before the first cutting, advances the front good section after the first cutting, and retracts it to its original position after the second cutting;
For recovering the defective section, a recovery roll winding the previously recovered turning water defective section;
A suction roll adsorbing the defective section adhesive tape for connecting the front end of the defective section formed by the first cutting to the turning defective section with the adhesive surface facing outward,
In a state in which the suction roll and the recovery roll rotate in opposite directions and the defective section advances after the forward good section is advanced by the traction plate, the defective section adhesive tape moves between the suction roll and the recovery roll to the defective section. A defective section disposal device for a secondary battery electrode manufacturing process wherein the defective section is connected to the swirling defective section while partially overlapping the front end, and the recovery roll is wound around the defective section connected to the swirling defective section. According to clause 4,
While the recovery roll wraps around the defective section, the suction roll falls away from the defective section, and on the suction roll separated from the defective section, a good section adhesive tape for connecting the front good section and the rear good section is attached with the adhesive side facing outward. A device for disposing of defective sections for the secondary battery electrode manufacturing process that is adsorbed to According to paragraph 3 or 5,
After the traction plate moves the front good section back to its original position, the suction roll rolls while pressing the rear good section supported on the support plate and connects the rear good section and the front good section with the good section adhesive tape. A device for disposing of defective sections for the secondary battery electrode manufacturing process. According to claim 1 or 4,
The defective section wound around the recovery roll is pressed and wound toward the recovery roll by a pinch roll, and the pressure of the pinch roll prevents the defective section from being unwound from the recovery roll after the secondary cutting. For the secondary battery electrode manufacturing process. Bad section disposal device. According to claim 1 or 4,
The traction plate is a defective section disposal device for the secondary battery electrode manufacturing process, which consists of a suction plate.