Adhesive tape attaching device and adhesive tape attaching method

Abstract

The adhesive tape attaching device of the present disclosure may include: a roller shaft including a first end portion and a second end portion opposite to the first end portion; and a pressing member including a first cylinder connected to the first end portion and a second cylinder connected to the second end portion and operating independently of the first cylinder. The roller shaft may be inclined according to movement of the pressing member.

Description

Technical Field

[0001] The present disclosure relates to a tape attaching device and a tape attaching method. Background Art

[0002] Unlike primary batteries, secondary batteries can be charged and discharged, making them suitable for a wide range of applications, including digital cameras, mobile phones, laptops, hybrid vehicles, electric vehicles, and energy storage systems (ESS). Secondary batteries can be lithium-ion batteries, nickel-cadmium batteries, nickel-metal hydride batteries, or nickel-metal hydride batteries.

[0003] Secondary batteries are manufactured as flexible pouch-type battery cells or rigid prismatic or cylindrical can-type battery cells. Multiple battery cells can be stacked to form a battery cell assembly.

[0004] The battery cell assembly can be arranged inside the housing to form a battery module, and multiple battery modules can be arranged inside the battery pack frame to form a battery pack. The battery pack can be used in various structures such as vehicles or energy storage systems. Summary of the Invention

[0005] (1) Technical issues to be resolved

[0006] A pressurized tape roller can be used to attach the tape to an object (e.g., a battery cell or cell assembly). However, when the tape is attached to a curved object, it may not adhere tightly to the object, resulting in reduced adhesion. For example, when the tape is attached to the casing of a curved prismatic battery cell, or to the curved seal of a pouch-type battery cell, the curvature reduces the contact area between the tape and the casing, reducing adhesion and potentially creating bubbles between the tape and the casing.

[0007] According to one aspect of the present disclosure, a tape attaching device and a tape attaching method can be provided, which can increase the contact area between the tape and the object, thereby improving the adhesion of the tape and reducing bubbles.

[0008] The battery cells manufactured using the disclosed tape-attaching device can be widely used in electric vehicles, battery charging stations, and other green technology fields such as solar and wind power generation using batteries. Furthermore, the battery cells manufactured using the disclosed tape-attaching device can be used in eco-friendly electric vehicles and hybrid vehicles, which aim to prevent climate change by suppressing air pollution and greenhouse gas emissions.

[0009] (2) Technical solution

[0010] The tape attaching device of the present disclosure may include: a roller including a first end and a second end opposite to the first end; and a pressing component including a first cylinder connected to the first end and a second cylinder connected to the second end and operating independently of the first cylinder, and the roller can be tilted according to the movement of the pressing component.

[0011] According to one embodiment, the tape attaching device may include a first guide member rotatably connecting the first end portion to the first cylinder and a second guide member rotatably connecting the second end portion to the second cylinder.

[0012] According to one embodiment, the first guide member may include a first bearing support coupled to the first cylinder and a first bearing connected to the first end portion and rotatably coupled to the first bearing support. The second guide member may include a second bearing support coupled to the second cylinder and a second bearing connected to the second end portion and rotatably coupled to the second bearing support.

[0013] According to one embodiment, the tape attaching device may further include: a memory storing external surface curvature data of the battery cell; and a regulator adjusting the pressure of at least one of the first cylinder and the second cylinder according to the external surface curvature data.

[0014] According to one embodiment, the regulator may include: a first regulator for regulating a first pressure of the first cylinder; and a second regulator for regulating a second pressure of the second cylinder.

[0015] According to one embodiment, the first stroke distance of the first cylinder can be changed according to the first pressure, the second stroke distance of the second cylinder can be changed according to the second pressure, and the inclination of the roller can be changed according to the first stroke distance and the second stroke distance.

[0016] According to one embodiment, the roller may include: an outer peripheral surface located between the first end portion and the second end portion, and applying an external force to the adhesive tape.

[0017] According to one embodiment, the first cylinder and the second cylinder may respectively include at least one of a pneumatic cylinder, a hydraulic cylinder, and an actuator.

[0018] According to one embodiment, the second cylinder may be arranged in parallel with the first cylinder.

[0019] According to one embodiment, the tape attaching device may further include: a memory storing a limit pressure value; and a pressure sensor disposed on the roller shaft. The output of the pressurizing component may be changed according to the pressure value sensed by the pressure sensor and the limit pressure value.

[0020] The tape attaching method according to the present disclosure may include: a pressurizing operation of applying pressure to the tape using a roller; and a pressure adjustment operation of adjusting at least one of a pressure of a first cylinder connected to a first end of the roller and a pressure of a second cylinder connected to a second end of the roller. The roller may be tilted according to the pressure adjustment operation.

[0021] (3) Beneficial effects

[0022] According to one embodiment of the present disclosure, the adhesion of an adhesive tape to an object having a curved surface can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a perspective view of a battery cell according to one embodiment.

[0024] Figure 2 is an exploded perspective view of a battery cell according to one embodiment.

[0025] Figure 3 FIG. 1 is a schematic diagram for explaining driving of a tape attaching device according to an embodiment.

[0026] Figure 4a and Figure 4b is a schematic diagram of a tape attachment device according to one embodiment.

[0027] Figure 5 is a flow chart of a tape attaching method according to one embodiment.

[0028] Description of reference numerals:

[0029] 100: Battery cell 200: Tape attachment device

[0030] 210: Roller 220: Pressurizing member

[0031] 230: Guide component 300: Tape attachment method DETAILED DESCRIPTION

[0032] Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings, but this is merely an example, and the present disclosure is not limited to the specific embodiments described exemplarily.

[0033] The terms and words used in this specification and claims described below should not be construed as limited to their ordinary or dictionary meanings. Instead, they should be construed as meanings and concepts consistent with the technical concept of the present disclosure, based on the principle that the inventor can appropriately define the concepts of the terms in order to best describe their invention.

[0034] Therefore, it should be understood that the embodiments described in this specification and the configurations shown in the accompanying drawings are merely the most preferred embodiments of the present disclosure and do not represent all technical ideas of the present disclosure. Various equivalents and modified examples that can replace them may exist at the time of submitting this application.

[0035] Detailed descriptions of known functions and configurations that may obscure the gist of the present disclosure will be omitted. Some components in the drawings are exaggerated, omitted, or schematically illustrated, and the size of each component does not entirely reflect the actual size.

[0036] Figure 1 is a perspective view of a battery cell according to one embodiment. Figure 2 is an exploded perspective view of a battery cell according to one embodiment.

[0037] Reference Figure 1 and / or Figure 2 The battery cell 100 may include an electrode assembly 110, a housing 120, a vent 130, cap assemblies 140 and 150, and / or tape 160. The battery cell 100 may be a secondary battery. For example, the battery cell 100 may be a lithium-ion battery, but is not limited thereto. For example, the battery cell 100 may be a nickel-cadmium battery, a nickel-metal hydride battery, or a nickel-hydrogen battery capable of both charge and discharge.

[0038] The electrode assembly 110 may include at least one positive electrode plate, at least one negative electrode plate, and at least one separator. Those skilled in the art will appreciate that the electrode assembly 110 may be manufactured in various ways. According to exemplary embodiments, the positive electrode, negative electrode, and separator may be repeatedly arranged to form an electrode assembly. In some embodiments, the electrode assembly may be a winding type, a stacking type, a Z-folding type, or a stack-folding type.

[0039] The housing 120 may form at least a portion of the exterior of the battery cell 100 and may house the electrode assembly 110. For example, the housing 120 may provide a space for housing the electrode assembly 110 and the electrolyte. According to one embodiment, the housing 120 may comprise aluminum. The housing 120 may be referred to as a can or an outer shell. The housing 120 may substantially have a rectangular parallelepiped shape with at least a portion open. For example, the housing 120 may include a first side surface 120a and a second side surface 120b, wherein the width of the second side surface 120b is greater than the width of the first side surface 120a. The first side surface 120a may be referred to as a narrow width surface, and the second side surface 120b may be referred to as a wide width surface.

[0040] According to one embodiment, the housing 120 may include a first opening 121 formed on one side (+Y direction) of the length direction (Y-axis direction) of the battery cell 100; a second opening 122 formed on the other side (-Y direction) of the length direction; and a through hole 123 formed in the height direction (Z-axis direction) of the battery cell 100. The first opening 121, the second opening 122, and the through hole 123 may each be an empty space communicating with the interior space of the housing 120.

[0041] Cap assemblies 140 and 150 may be attached to both sides of the housing 120 in the longitudinal direction (e.g., the Y-axis direction). For example, the cap assemblies 140 and 150, together with the housing 120, may house the electrode assembly 110 and the electrolyte. Cap assemblies 140 and 150 may include a first cap assembly 140 attached to an end of the housing 120 in the second direction (+Y direction); and a second cap assembly 150 attached to an end in a third direction (-Y direction) opposite the second direction (+Y direction). The first cap assembly 140 may seal the first opening 121 of the housing 120. The second cap assembly 150 may seal the second opening 122 of the housing 120.

[0042] The cover assemblies 140 , 150 may include multiple components.

[0043] In one embodiment, the cap assemblies 140 and 150 may include cap plates 142 and 151 that are combined with the housing 120 to seal the housing 120. For example, the cap plates 142 and 151 may be formed of aluminum or a material containing aluminum. The cap plates 142 and 151 may be laser welded to the housing 120 along their edges. When the cap plates 142 and 151 are combined with the housing 120, the interior of the housing 120 is sealed. Therefore, at least one of the cap plates 142 and 151 may include an electrolyte injection port 148 for injecting electrolyte into the interior of the housing 120. The electrolyte injection port 148 may be sealed with a plug or the like after the electrolyte is injected.

[0044] The cap assemblies 140 and 150 may include terminal plates 141 and 152. The terminal plates 141 and 152 may be coupled to one side of the cap plates 142 and 151. The side of the cap plates 142 and 151 may be opposite to the side facing the interior of the housing 120. However, when each battery cell 100 is formed into a battery module or battery pack, the battery cell 100 may be electrically connected to adjacent battery cells 100 via the terminal plates 141 and 152.

[0045] The terminal plates 141 and 152 can have positive or negative polarity. For example, based on the accompanying drawings, the first terminal plate 141 disposed in the second direction (+Y direction) of the housing 120 can have negative polarity, while the second terminal plate 152 disposed in the third direction (-Y direction) of the housing 120 can have positive polarity. For example, the terminal plates 141 and 152 can each be electrically connected to the electrode assembly 110 via an electrode tab.

[0046] In one embodiment, an insulating plate (outer insulating plate) 146 may be disposed between a terminal plate having a negative polarity (eg, the first terminal plate 141 ) and the first cap plate 142 .

[0047] The other sides of the cover plates 142 and 151 may be provided with current collector plates 143 and 153. These current collector plates 143 and 153 may be connected to the electrode tabs of the first electrode plate 111 or the second electrode plate 112 of the electrode assembly 110, respectively, to provide positive or negative polarity. Furthermore, insulating plates (inner insulating plates) 144a, 144b, 154a, and 154b may be provided between the cover plates 142 and 151 and the current collector plates 143 and 153, and between the current collector plates 143 and 153 and the interior of the housing 120, respectively.

[0048] On the other hand, according to one embodiment of the present invention, the cap assemblies 140, 150 may include rivet terminals 145, 155 that pass through the terminal plates 141, 152 along the thickness direction to the current collector plates 143, 153. To this end, the cap plates 142, 151, the terminal plates 141, 152, the current collector plates 143, 153, and a portion of the insulating plates 144a, 154a may include holes for inserting the rivet terminals 145, 155, and washers 147, 157 may be sandwiched between the holes and the rivet terminals 145, 155.

[0049] Since the components of the cover assemblies 140 and 150 described above are only one embodiment, a portion of the components of the cover assemblies 140 and 150 may be omitted, or other components not described may be added.

[0050] The exhaust portion 130 may provide a path for exhausting gas generated inside the housing 120 to the outside of the housing 120. For example, the exhaust portion 130 may include a notch portion 131 configured to break at a specified pressure or higher and a base 132 coupled to the housing 120.

[0051] According to one embodiment, the vent portion 130 may be located on the first side surface 120a of the housing 120, where stress is relatively high, among the remaining surfaces of the housing 120 excluding the portion where the cap assemblies 140 and 150 are joined. The vent portion 130 may be located between the first cap assembly 140 and the second cap assembly 150. According to one embodiment, at least a portion of the vent portion 130 may be disposed within a through hole 123 formed in the first side surface 120a.

[0052] In a battery cell 100 including a plurality of cap assemblies 140 and 150 located on both sides of the housing 120 in the longitudinal direction, as in one embodiment of the present invention, the available space in one cap assembly 140 and 150 may be reduced. Since the exhaust portion is formed in the housing 120, the design freedom of the exhaust portion 130 can be increased, and the discharge of gas inside the housing 120 can be improved. Although the exhaust portion 130 formed on the first side surface 120a of the housing 120 is shown herein, this is only an example. For example, in other embodiments, the exhaust portion 130 may be located on the cap assemblies 140 and 150.

[0053] According to one embodiment, the base 132 may be welded along an edge portion to the housing 120. The base 132 may be a plate including aluminum.

[0054] According to one embodiment, the notch 131 may be a groove, slot, and / or hole formed in the base 132. The notch 131 may be a portion of the vent 130. When the pressure inside the housing 120 is higher than or equal to a predetermined pressure, the notch 131 breaks before other portions. At least a portion of the notch 131 may be thinner than the base 132.

[0055] According to the present invention, at least a portion of the gas generated inside the housing 120 can be discharged through the empty space of the vent 130 formed by the rupture of the notch 131 , so the gas discharge direction can be controlled from the perspective of the battery cell 100 .

[0056] Tape 160 can be used to insulate the housing 120 of the battery cell 100 . For example, tape 160 can include an insulating material. Tape 160 can also be referred to as a protective film, a protective member, a protective tape, an insulating film, an insulating member, and / or an insulating tape. According to one embodiment, tape 160 can include an adhesive material for bonding to the housing 120 and the vent 130 .

[0057] The adhesive tape 160 may cover at least a portion of the housing 120. Although the adhesive tape 160 is shown herein as covering the entire housing 120, the location where the adhesive tape 160 covers the housing 120 may vary depending on the design. For example, in one embodiment, the adhesive tape 160 may cover at least a portion of the exhaust portion 130 and the first side 120a of the housing 120. According to one embodiment, at least a portion of the adhesive tape 160 may be folded to overlap.

[0058] According to one embodiment, the covering region 162 of the adhesive tape 160 may cover the exhaust portion 130. At least a portion of the adhesive tape 160 (e.g., the covering region 162) may contact at least a portion of the exhaust gas that passes through the notch portion 131 after the notch portion 131 of the exhaust portion 130 is broken. The covering region 162 may change the path of the gas generated in the exhaust portion 130.

[0059] Although the battery cell 100 is shown herein as a prismatic battery cell with openings in two directions, this is merely an example. For example, in an embodiment not shown, the battery cell 100 may be a prismatic battery cell or a pouch-type battery cell with openings in one direction.

[0060] Figure 3 is a schematic diagram of a tape attachment device according to one embodiment. Figure 4a and Figure 4b FIG. 1 is a schematic diagram for explaining driving of a tape attaching device according to an embodiment.

[0061] Reference Figure 3 、 Figure 4a and / or Figure 4b The tape attaching device 200 may include a roller 210 and a pressurizing member 220. The tape attaching device 200 may apply an external force to an object to adhere the tape to the surface. For example, the tape attaching device 200 may attach the tape 160 of the battery cell 100 to the housing 120. Figure 1 and / or Figure 2 The description of the battery cell 100, the housing 120 and the tape 160 may be applicable to Figure 3 The battery cell 100, the shell 120 and the tape 160 are shown.

[0062] Although only the tape attaching device 200 is shown herein to attach the tape 160 to a prismatic cell (e.g., Figure 1 The structure of the tape attachment device 200 is to attach the tape to the surface of the casing 120 of the battery cell 100, but the use of the tape attachment device 200 is not limited to this. For example, the tape attachment device 200 can be used to attach insulating tape to the surface of a prismatic battery cell 100 that is open in one direction, to attach tape to the curved seal portion of a pouch-type battery cell, or to attach tape to connect multiple battery cells.

[0063] Roller 210 can contact insulating tape (e.g., tape 160) and adhere the tape to an object (e.g., housing 120). If the surface of housing 120 is curved, the contact area between roller 210 and tape 160 may be reduced, resulting in reduced adhesion between tape 160 and housing 120.

[0064] Roller 210 may include a first end 211 and a second end 212. Roller 210 may include an outer circumferential surface 213 extending from first end 211 to second end 212. Outer circumferential surface 213 may contact tape 160 to attach tape 160 to housing 120. Since tape 160 and roller 210 are in close contact, air bubbles between tape 160 and housing 120 may be reduced.

[0065] The roller 210 may be tilted according to the shape of the housing 120. For example, the roller 210 may be tilted according to the force or pressure applied by the pressurizing member 220. The first end 211 and the second end 212 of the roller 210 may be connected to the pressurizing member 220, respectively.

[0066] The pressurizing member 220 can apply pressure or force to both ends 211 and 212 of the roller 210. For example, the pressurizing member 220 may include a first cylinder 221 for moving the first end 211 and a second cylinder 222 for moving the second end 212. The position of the first end 211 can be changed according to the movement of the first cylinder 221. The position of the second end 212 can be changed according to the movement of the second cylinder 222. By changing the position of the first end 211 and / or the second end 212, the inclination of the roller 210 can be changed. According to one embodiment (for example, Figure 4a ), the first cylinder 221 may be connected to the first end portion 211. The second cylinder 222 may be connected to the second end portion 212. The roller shaft 210 may be tilted by the space between the components of the first cylinder 221 and / or the second cylinder 222. For example, the position of the roller shaft 210 may be changed by a gap formed in the roller shaft 210.

[0067] The second cylinder 222 may be arranged substantially parallel to the first cylinder 221. For example, the first cylinder 221 and the second cylinder 222 may each be movable in a first direction (eg, in an X-axis direction).

[0068] The first cylinder 221 and the second cylinder 222 may be air cylinders (eg, pneumatic cylinders), but this is merely an example, and the first cylinder 221 and the second cylinder 222 may be replaced by other components capable of achieving linear motion or piston motion, such as hydraulic cylinders, actuators, and the like.

[0069] According to one embodiment (e.g., Figure 4b), the tape applying device 200 may include a guide member 230. The guide member 230 may rotatably connect the roller 210 to the pressing member 220. For example, the guide member 230 may include a first guide member 231 rotatably connecting the first end 211 to the first cylinder 221 and a second guide member 232 rotatably connecting the second end 212 to the second cylinder 222. The first guide member 231 may include a first bearing support 231a coupled to the first cylinder 221 and a first bearing 231b coupled to the first end 211. The first bearing 231b may be rotatably coupled to the first bearing support 231a. For example, at least a portion of the first bearing 231b may rotate while being accommodated in the first bearing support 231a. The second guide member 232 may include a second bearing support 232a coupled to the second cylinder 222 and a second bearing 232b coupled to the second end 212. The second bearing 232b may be rotatably coupled to the second bearing support 232a. For example, at least a portion of the second bearing 232b may rotate while being accommodated in the second bearing housing 232a.

[0070] The tape applying device 200 may include at least one regulator 240 for controlling the driving of the pressurizing component 220. The regulator 240 can adjust the pressure of the first cylinder 221 and the second cylinder 222. The first cylinder 221 and the second cylinder 222 can each operate independently. For example, the first cylinder 221 and the second cylinder 222 can each be connected to a separate regulator 240. According to one embodiment, the regulator 240 may include a first regulator 241 for adjusting a first pressure in the first cylinder 221 and a second regulator 242 for adjusting a second pressure in the second cylinder 222. The first stroke distance of the first cylinder 221 can be changed based on the first pressure adjusted by the first regulator 241, and the second stroke distance of the second cylinder 222 can be changed based on the second pressure adjusted by the second regulator 242. The inclination of the roller shaft can be changed based on the first and second stroke distances. The first and second stroke distances may refer to the distances that the first and second cylinders 221 and 222, respectively, move relative to a reference position (e.g., a position where no pressure is applied).

[0071] The tape attaching device 200 may include a memory 250 .

[0072] The memory 250 can store data on the external surface curvature of the battery cell 100. In one embodiment, the external surface curvature data may be data reflecting the surface curvature of the casing 120 of the prismatic battery cell 100. The external surface curvature data can be sensed using a distance sensor, etc. In another embodiment, the external surface curvature data may be data reflecting the surface curvature of the curved seal portion of a pouch-type battery cell. In another embodiment, the external surface curvature data may be data reflecting the external surface curvature of a battery cell assembly comprising multiple battery cells. The external surface curvature data can be measured using sensors during the manufacturing process of the battery cell 100 and / or the battery cell assembly. The regulator 240 can adjust the pressure of the pressurizing component 220 based on the external surface curvature data stored in the memory 250. For example, the regulator 240 can adjust at least one of the first pressure of the first cylinder 221 and the second pressure of the second cylinder 222 based on the external surface curvature data. By adjusting the pressure of the first cylinder 221 and / or the pressure of the second cylinder 222 by the regulator 240, the inclination of the roller shaft 210 can be changed.

[0073] According to one embodiment, the memory 250 may store a limit pressure value for preventing or reducing damage to the case 120 of the battery cell 100 .

[0074] According to one embodiment, the tape applying device 200 may include a pressure sensor 260. For example, the tape applying device 200 may include a pressure sensor 260 disposed on the roller 210. The pressure sensor 260 may sense pressure applied to the first end 211 and / or the second end 212 of the roller 210. The output of the pressurizing component 220 may be controlled based on the pressure value sensed by the pressure sensor 260 and a limit pressure value stored in the memory 250. For example, when the sensed pressure value exceeds the limit pressure value stored in the memory 250, the regulator 240 or a processor (not shown) may stop or reduce the output of the pressurizing component 220. By limiting the output of the pressurizing component 220 through the pressure sensor 260, damage to the battery cell 100 may be reduced or prevented. In one embodiment, the pressure sensor 260 may be a load cell.

[0075] According to one embodiment, the first cylinder 221 and the second cylinder 222 may each include a servo motor. For example, the tape applying device 200 may further include a distance sensing sensor (not shown) for sensing the surface of the housing 120. The driving force (e.g., the stroke) of the first cylinder 221 and the second cylinder 222 may be changed based on the value sensed by the distance sensing sensor.

[0076] Figure 5 is a flow chart of a tape attaching method according to one embodiment.

[0077] Reference Figure 4aand Figure 4b as well as Figure 5 , the tape attaching method 300 may include a pressurizing operation 310 and a pressure adjusting operation 320 . Figure 5 The tape attachment method 300 can utilize Figure 3 、 Figure 4a and / or Figure 4b The tape attaching device 200 performs.

[0078] The pressurizing operation 310 may be an operation of pressurizing the adhesive tape 160 using the roller 210. For example, the outer circumferential surface 213 of the roller 210 may contact the adhesive tape 160 and apply pressure.

[0079] The pressure adjustment operation 320 may be an operation of adjusting at least one of the pressure of the first cylinder 221 connected to the first end 211 of the roller shaft 210 and the pressure of the second cylinder 222 connected to the second end 212 of the roller shaft 210. For example, the first regulator 241 may adjust the pressure of the first cylinder 221, and the second regulator 242 may adjust the pressure of the second cylinder 222.

[0080] The roller 210 can be tilted through the pressure adjustment operation 320. For example, through the pressure adjustment operation 320, the first stroke distance of the first cylinder 221 and / or the second stroke distance of the second cylinder 222 can be changed. By changing the first stroke distance and / or the second stroke distance, the roller 210 can be tilted. Due to the tilting of the roller 210, the contact area between the roller 210 and the object with a curved surface can be increased. Due to the increased contact area, the adhesion of the tape 160 can be improved. According to one embodiment, the regulator 240 can adjust the pressure of the cylinders 221 and 222 based on the curvature data of the external surface of the battery cell 100 stored in the memory 250.

[0081] The order of the pressurizing operation 310 and the pressure regulating operation 320 may be changed. For example, Figure 5 3. The pressurizing operation 310 is shown to be performed before the pressure regulating operation 320, but this is only an example. The pressurizing operation 310 and the pressure regulating operation 320 may be performed simultaneously, or the pressure regulating operation 320 may be performed before the pressurizing operation 310.

[0082] The above description is merely an example of applying the principles of the present disclosure, and other configurations may be included without departing from the scope of the present disclosure.

[0083] While the embodiments of the present disclosure have been described above, the scope of the present disclosure is not limited thereto. It is apparent to those skilled in the art that various modifications and changes may be made without departing from the technical spirit of the present disclosure as described in the claims. For example, the present disclosure may be implemented by deleting some components from the above embodiments, or by combining various embodiments.

Claims

1. A tape attaching device comprising: a roller shaft comprising a first end portion and a second end portion opposite to the first end portion; as well as a pressurizing member comprising a first cylinder connected to the first end portion and a second cylinder connected to the second end portion and operating independently of the first cylinder, The roller shaft is tilted according to the movement of the pressing member.

2. The tape attaching device according to claim 1, further comprising: The guide member includes a first guide member rotatably connecting the first end portion to the first cylinder and a second guide member rotatably connecting the second end portion to the second cylinder.

3. The tape attaching device according to claim 2, wherein: The first guide member includes a first bearing support coupled to the first cylinder and a first bearing connected to the first end portion and rotatably coupled to the first bearing support. The second guide member includes a second bearing support coupled to the second cylinder and a second bearing connected to the second end portion and rotatably coupled to the second bearing support.

4. The tape attaching device according to any one of claims 1 to 3, further comprising: a memory for storing external surface bending data; as well as A regulator adjusts the pressure of at least one of the first cylinder and the second cylinder according to the external surface curvature data.

5. The tape attaching device according to claim 4, wherein: The regulator comprises: a first regulator for regulating a first pressure of the first cylinder; and The second regulator is used to adjust the second pressure of the second cylinder.

6. The tape attaching device according to claim 5, wherein: A first stroke distance of the first cylinder changes according to the first pressure, and a second stroke distance of the second cylinder changes according to the second pressure. The inclination of the roller shaft changes according to the first stroke distance and the second stroke distance.

7. The tape attaching device according to any one of claims 1 to 3, wherein: The roller includes an outer peripheral surface located between the first end portion and the second end portion and applying an external force to the adhesive tape.

8. The tape attaching device according to any one of claims 1 to 3, wherein: The first cylinder and the second cylinder each include at least one of a pneumatic cylinder, a hydraulic cylinder, and an actuator.

9. The tape attaching device according to any one of claims 1 to 3, wherein: The second cylinder is arranged in parallel with the first cylinder.

10. The tape attaching device according to any one of claims 1 to 3, further comprising: A memory for storing a limit pressure value; as well as A pressure sensor is provided on the roller shaft. The output of the pressurizing member changes according to the pressure value sensed by the pressure sensor and a limit pressure value.

11. A method for attaching an adhesive tape, comprising: Pressurizing operation: using rollers to pressurize the tape; as well as a pressure regulating operation of regulating at least one of a pressure of a first cylinder connected to a first end portion of the roller shaft and a pressure of a second cylinder connected to a second end portion of the roller shaft, The roller shaft is tilted according to the pressure adjustment operation.

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