Wire transfer device

Abstract

The present disclosure relates to a wire transfer device comprising: a frame; a wire coil which is connected to the frame and on which a wire is wound; the fixing piece comprises a first end part connected with the wire and a second end part opposite to the first end part and connected with the foil; and a guide roller configured to guide a movement path of the wire and the fixing member. The guide roller includes: a protruding region for accommodating the fixing member; and a groove region extending from the protruding region and formed with a groove for accommodating the wire.

Description

Technical Field

[0001] The present disclosure relates to a wire transfer device. Background Art

[0002] Unlike primary batteries, secondary batteries can be charged and discharged, so they can be used in various fields such as digital cameras, mobile phones, laptops, hybrid vehicles, electric vehicles, energy storage systems (ESS), etc. Secondary batteries can be lithium-ion batteries, nickel-cadmium batteries, nickel-metal hydride batteries, or nickel-hydrogen batteries.

[0003] Secondary batteries are manufactured as pouch-type battery cells with flexibility or can-type battery cells with rigid prismatic or cylindrical shapes. Multiple battery cells may form a stacked battery cell assembly. The battery cell assembly may be arranged inside a module housing to form a battery module, and multiple battery modules may be arranged inside a battery pack housing to form a battery pack. The battery cell may include a foil and an electrode coated on the foil. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The foil can be used to make either the positive or negative electrode of a battery cell.

[0006] The foil can be unwound from a wound state and transferred to coat the electrode. However, during the transfer of the foil, the foil may be broken due to external impact or tension applied to the foil. When the foil is broken, the operator can manually move the foil to re-operate. However, if the operator manually moves the foil, the tension applied to the foil may not be uniform depending on the operator's proficiency. In addition, the heat generated by the foil transfer device may cause a safety accident to the operator. The purpose of the present disclosure is to provide a wire transfer device capable of providing appropriate tension to the foil.

[0007] According to one aspect of the present disclosure, a wire transfer device that can prevent safety accidents and improve operational convenience can be provided.

[0008] The battery cells manufactured by the wire transfer device of the present invention can be widely used in electric vehicles, battery charging stations, and other green technology fields such as solar power generation and wind power generation using batteries. In addition, the battery cells manufactured by the wire transfer device of the present invention can be used in eco-friendly electric vehicles, hybrid vehicles, etc. that prevent climate change by suppressing air pollution and greenhouse gas emissions.

[0009] (II) Technical solution

[0010] The wire transfer device of the present disclosure may include: a frame; a wire drum connected to the frame and on which the wire is wound; a fixture including a first end connected to the wire and a second end opposite to the first end and connected to a foil; and a guide roller guiding a moving path of the wire and the fixture. The guide roller may include: a groove area for accommodating the wire; and a protruding area extending from the groove area and contacting the fixture.

[0011] According to one embodiment, the protruding area may include a plurality of protrusions, each protrusion having a curved surface surrounding at least a portion of the fixing member.

[0012] According to one embodiment, the guide roller may include a first guide roller, a second guide roller, and a third guide roller that are spaced apart from each other. A second virtual line passing through the center of the first guide roller and the center of the third guide roller may be inclined at a specified angle relative to a first virtual line passing through the center of the first guide roller and the center of the second guide roller.

[0013] According to one embodiment, the specified angle may be 20 degrees to 25 degrees.

[0014] According to one embodiment, the wire transfer device may further include: a driving device including a motor, wherein the motor provides a driving force for rotating the wire drum.

[0015] According to one embodiment, the driving device may include: at least one pulley that rotates according to the driving force generated by the motor; and a chain connected to the at least one pulley and the wire drum. The frame may include a chain drive frame that supports the at least one pulley.

[0016] According to one embodiment, the wire transfer device may further include: a limit sensor for sensing movement of the wire. The motor may operate based on information sensed by the limit sensor.

[0017] According to one embodiment, the wire transfer device may further include: a tension adjustment unit for adjusting the tension of the wire. The tension adjustment unit may include: a tension adjustment rack for moving in a first direction according to the tension of the wire; a tension adjustment device for preventing the tension adjustment rack from moving in the first direction; and a gas lifter for increasing the tension of the wire.

[0018] According to one embodiment, the wire transfer device may further include an encoder module, which includes: an encoder bracket connected to the linear axis of the tension adjustment part; an encoder roller connected to the encoder bracket and guiding the movement of the wire; and an encoder that senses the number of rotations of the encoder roller.

[0019] According to one embodiment, the tension adjusting portion is connected to the frame, and the tension adjusting portion may include a screw structure for moving the tension adjusting device in a second direction perpendicular to the first direction.

[0020] According to one embodiment, the wire drum may include: a receiving area receiving the wire; and a wire drum driving shaft extending from the receiving area and rotatably connected to the frame.

[0021] According to one embodiment, the wire transfer device may further include: a brake connected to the wire drum drive shaft.

[0022] According to one embodiment, the frame and the guide roller may be mounted on the foil transfer device in a state of being spaced apart from each other.

[0023] According to one embodiment, the guide roller may contain ceramic.

[0024] According to one embodiment, the guide roller may comprise a first roller module arranged outside the structure of the foil transfer device and a second roller module arranged inside the structure of the foil transfer device.

[0025] (III) Beneficial effects

[0026] According to one embodiment of the present disclosure, by providing a specified range of tension to the foil, the foil may be prevented from breaking.

[0027] According to an embodiment of the present disclosure, operational convenience can be increased and safety accidents can be prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a perspective view of a wire transfer device according to one embodiment.

[0029] Figure 2a is a side view of a wire transfer device according to one embodiment.

[0030] Figure 2b is a top view of a wire transfer device according to one embodiment.

[0031] Figure 2c is a front view of a wire transfer device according to one embodiment.

[0032] Figure 3 is a diagram of a wire transfer device mounted on a foil transfer device according to one embodiment.

[0033] Figure 4 According to an embodiment Figure 3 Magnified view of area A.

[0034] Figure 5According to an embodiment Figure 3 Magnified view of area B.

[0035] Figure 6 According to an embodiment Figure 4 Magnified view of area C.

[0036] Figure 7a and Figure 7b is a diagram of a guide roller according to one embodiment.

[0037] Figure 8a and Figure 8b is a diagram of a guide roller according to another embodiment.

[0038] Figure 9a and Figure 9b is a diagram of a guide roller according to yet another embodiment.

[0039] Fig.10 is a front view of a guide roller installed on a foil transfer device according to one embodiment.

[0040] Fig.11 is a perspective view of a guide roller according to one embodiment.

[0041] Description of reference numerals:

[0042] 10: Wire transfer device

[0043] 11: Line

[0044] 20: Foil transfer device

[0045] 100: Framework

[0046] 200: Reel

[0047] 300: Tension adjustment unit

[0048] 400: Encoder module

[0049] 500: Drive device

[0050] 600: Guide roller

[0051] 700: Fixing parts DETAILED DESCRIPTION

[0052] Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings. However, this is only exemplary, and the present disclosure is not limited to the specific embodiments exemplarily described.

[0053] The terms and words used in the present specification and claims described below should not be interpreted as general meanings or dictionary meanings, but should be interpreted as meanings and concepts that conform to the technical ideas of the present invention based on the principle that the inventor can appropriately define the concept of the term in order to explain his own invention in the best way.

[0054] Therefore, it should be understood that the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all technical ideas of the present invention. Various equivalents and modifications that can replace them may be available when submitting this application.

[0055] Below, embodiments of the present invention will be described with reference to the accompanying drawings. In this case, in the accompanying drawings, identical components are represented by identical reference numerals as much as possible. In addition, detailed descriptions of known functions and configurations that may confuse the subject matter of the present invention will be omitted. In the accompanying drawings, some components are exaggerated, omitted or schematically shown, and the sizes of the components do not fully reflect the actual sizes.

[0056] Figure 1 is a perspective view of a wire transfer device according to one embodiment. Figure 2a is a side view of a wire transfer device according to one embodiment. Figure 2b is a top view of a wire transfer device according to one embodiment. Figure 2c is a front view of a wire transfer device according to one embodiment.

[0057] Reference Figure 1 , Figure 2a , Figure 2b and / or Figure 2c The wire transfer device 10 may include a frame 100 , a bobbin 200 , a tension adjustment portion 300 , an encoder module 400 , and a driving device 500 .

[0058] The wire transfer device 10 may transfer a wire 11. For example, the wire transfer device 10 may transfer a wire that may be connected to a foil for manufacturing a battery.

[0059] According to one embodiment, the frame 100 may house at least a portion of the components of the wire transfer device 10. For example, the wire drum 200, the tension adjustment portion 300, the encoder module 400, and the driving device 500 may be directly or indirectly connected to the frame 100. According to one embodiment, a portion of the components of the wire transfer device 10 (for example, the guide roller 600) may be located outside the frame 100.

[0060] According to one embodiment, the frame 100 can connect or secure the wire transfer device 10 to a foil transfer device (e.g., Figure 4For example, the frame 100 may be mounted on the foil transfer device 20 using a coupling member (eg, a screw, a magnet, or a rivet). According to one embodiment, the structure of the frame 100 is exemplary and may be selectively designed.

[0061] According to one embodiment, the frame 100 may include a chain drive frame 110 accommodating at least a portion of the drive device 500. The chain drive frame 110 may support at least one pulley 520 of the drive device 500. At least a portion of the at least one pulley 520 may be covered by the frame 100.

[0062] The wire drum 200 may accommodate the wire 11. For example, the wire 11 may be wound on the wire drum 200. In one embodiment, the wire drum 200 may be referred to as a roll or a wire roll.

[0063] The wire drum 200 may include an accommodation area 210 for winding the wire 11 and a wire drum drive shaft 220 extending from the accommodation area 210. The wire drum drive shaft 220 may be rotatably connected to the frame 100. The wire drum drive shaft 220 may include a connection portion 221 configured to be connected to a chain. According to one embodiment, the frame 100 may include a through hole 101 for accommodating the wire drum drive shaft 220 of the wire drum 200.

[0064] According to one embodiment, the wire transfer device 10 may include a brake 230 connected to the wire drum drive shaft 220. When the power of the motor 510 is cut off, the brake 230 may prevent the wire drum 200 from rotating, thereby preventing the wire 11 from unwinding. In one embodiment, the brake 230 may be a magnetic powder brake.

[0065] In one embodiment, the wire transfer device 10 may include a bearing structure (not shown) to reduce friction between the wire drum drive shaft 220 and the frame 100 .

[0066] According to one embodiment, the wire transfer device 10 may include a tension adjusting portion 300. The tension adjusting portion 300 may stop the operation of the wire transfer device 10 when the wire 11 generates an instantaneous tension during the transfer process.

[0067] According to one embodiment, the tension adjustment section 300 may include a tension adjustment device 310 and a tension adjustment rack 330 connected to the frame 100. The tension adjustment rack 330 may move according to the tension of the wire 11. For example, when a tension greater than a specified size is transmitted to the wire 11, the tension adjustment rack 330 may move in a first direction (e.g., -X direction). When the tension adjustment rack 330 moves more than a specified length, the tension adjustment device 310 may stop the movement of the wire transfer device 10. For example, the number of revolutions of the wire drum 200 may be sensed or determined based on the length of the movement of the tension adjustment rack 330 in the first direction. When the number of revolutions of the wire drum 200 sensed by the tension adjustment device 310 is greater than or equal to the set number of revolutions, the tension adjustment device 310 may stop the movement of the wire transfer device 10.

[0068] According to one embodiment, the tension adjusting portion 300 may include a screw structure 320. The screw structure 320 may move the tension adjusting device 310. For example, the screw structure 320 may move the tension adjusting device 310 in a second direction (e.g., a Y-axis direction) perpendicular to the first direction. When the screw structure 320 moves in the second direction, the position of the wire 11 wound on the wire drum 200 may change. For example, when the screw structure 320 moves, the wire 11 may be wound on the wire drum 200 substantially uniformly. According to one embodiment, at least a portion of the wire 11 may move through the screw structure 320. In one embodiment, the screw structure 320 may be a reverse screw.

[0069] According to one embodiment, the tension adjusting part 300 may include a gas lift 340. According to one embodiment, the gas lift 340 may provide tension to the wire 11. For example, the gas lift 340 may protrude relative to the frame 100 and / or the tension adjusting device 310 using hydraulic pressure, thereby changing the tension of the wire 11.

[0070] According to one embodiment, the tension adjusting portion 300 may include a linear shaft 350 protruding relative to the frame 100 and / or the tension adjusting device 310. The linear shaft 350 may support at least a portion of the encoder module 400.

[0071] According to one embodiment, the tension adjustment device 310 may adjust the tension of the wire 11 by changing the protruding lengths of the gas lifter 340 and the linear shaft 350 .

[0072] According to one embodiment, the wire transfer device 10 may include an encoder module 400 for sensing the transfer amount of the wire 11. For example, the encoder module 400 may include: an encoder bracket 430 connected to the linear shaft 350; an encoder roller 420 configured to guide the movement of the wire 11; and an encoder 410 that senses the number of revolutions and / or the rotation direction of the encoder roller 420. The encoder 410 and / or the encoder roller 420 may be connected to the encoder bracket 430.

[0073] According to one embodiment, the wire transfer device 10 may include a driving device 500 .

[0074] In one embodiment, the driving device 500 may include a motor 510 for providing a driving force. The motor 510 may be disposed on the frame 100. The motor 510 may provide a driving force for the wire drum 200 to rotate.

[0075] For example, the driving device 500 may include: at least one pulley 520 rotatably connected to the frame 100; and a chain connected to the at least one pulley 520 and the wire drum 200. At least a portion of the driving force generated by the motor 510 may be transmitted to the wire drum 200 through the at least one pulley 520 and the chain. According to one embodiment, the chain may be connected to the wire drum drive shaft 220 of the wire drum 200. For example, the wire drum drive shaft 220 may include a connection portion 221 for accommodating the chain. At least a portion of the at least one pulley 520 and the chain may be covered by the chain drive frame 110.

[0076] According to one embodiment, the wire transfer device 10 may include a communication module (not shown) and / or a processor (not shown) for driving the motor 510. The communication module may receive a signal from an external electronic device or a server located outside the wire transfer device 10 by wireless or wire. The processor may generate a signal for the motor 510 to operate based on the signal received by the communication module.

[0077] According to one embodiment, the wire transfer device 10 may include a limit sensor (not shown). The limit sensor may sense a component of the wire transfer device 10 (e.g., the wire 11 or the holder 700) located at a specified position. The motor 510 may operate based on the information sensed by the limit sensor. For example, when the wire 11 or the holder 700 is located at a specified point, the motor 510 may stop. According to one embodiment, the limit sensor may be replaced by a proximity sensor.

[0078] Figure 3 is a diagram of a wire transfer device mounted on a foil transfer device according to one embodiment. Figure 4 yes Figure 3 Magnified view of area A. Figure 5 According to an embodiment Figure 3 Magnified view of area B. Figure 6 According to an embodiment Figure 4 Magnified view of area C.

[0079] Reference Figure 3 , Figure 4 , Figure 5 and / or Figure 6 The wire transfer device 10 can be used to align the position of the foil 21 of the foil transfer device 20 . Figure 1 , Figure 2a , Figure 2b and / or Figure 2c The description of the components of the wire transfer device 10 (eg, the frame 100, the wire drum 200, the tension adjustment unit 300, the encoder module 400, and the driving device 500) may be applicable to Figure 3 and Figure 4 The wire transfer device 10.

[0080] The wire transfer device 10 may be mounted on a foil transfer device 20. The foil transfer device 20 may include rollers (not shown) for transferring a foil 21 and a structure 22 supporting the rollers. A frame 100 of the wire transfer device 10 may be mounted on the structure 22. In one embodiment, the foil transfer device 20 may be a manufacturing device for coating a foil 21.

[0081] According to one embodiment, a plurality of wire transfer devices 10 may be provided. For example, the wire transfer device 10 may include: a first wire transfer device 10a, which is provided at one side (e.g., the left side) of the foil transfer device 20; and a second wire transfer device 10b, which is provided at the other side (e.g., the right side) of the foil transfer device 20. By pulling both ends of the foil 21 by the first wire transfer device 10a and the second wire transfer device 10b, the position of the foil 21 may be aligned. For example, when the foil 21 moves in the empty space 23 between the structural members 22 of the foil transfer device 20, the wire transfer device 10 may move the foil 21 located in the empty space 23 to the manufacturing path.

[0082] According to one embodiment, the wire transfer device 10 may include at least one guide member 120. The guide member 120 may include a roller. For example, the guide member 120 may guide the path of the wire 11 led out of the wire transfer device 10. The wire 11 wound on the wire drum 200 may be transferred to the guide roller 600 through the at least one guide member 120. According to one embodiment, the guide member 120 may be provided on the frame 100.

[0083] The wire transfer device 10 may include a guide roller 600. The guide roller 600 may guide the movement of the wire 11 and / or the fixture 700. For example, the guide roller 600 may contact the wire 11 and / or the fixture 700. The wire 11 and / or the fixture 700 may move toward the wire drum 200 along a path provided by the guide roller 600. According to one embodiment, the guide roller 600 may be referred to as a bearing.

[0084] According to one embodiment, the guide roller 600 may include a plurality of guide rollers 610, 620, 630. For example, the guide roller 600 may include a first guide roller 610, a second guide roller 620, and a third guide roller 630 that are spaced apart from each other. The tension transmitted to the foil 21 may be changed according to the shape and / or arrangement of the guide roller 600. The detailed description of the shape and / or arrangement of the guide roller 600 will be described below. Figures 7a to 9b is described in.

[0085] According to one embodiment, the guide roller 600 can be made of a heat-resistant material. According to one embodiment, the wire transfer device 10 can be used in a high temperature environment. The wire transfer device 10 can be made of a material that can be used without lubricating oil to prevent the lubricating oil from hardening. For example, the guide roller 600 can be made of ceramic.

[0086] According to one embodiment, the guide roller 600 may be disposed spaced apart from the frame 100 of the wire transfer device 10. For example, the guide roller 600 may be mounted on the structure 22 of the foil transfer device 20 using a support member 640 spaced apart from the frame 100.

[0087] According to one embodiment, a wire transfer device 10 may provide at least one guide roller 600. For example, the guide roller 600 may include: a first roller module 600a disposed outside the structure 22 of the foil transfer device 20; and a second roller module 600b disposed inside the structure 22.

[0088] Figure 4 The first roller module 600a and the second roller module 600b are shown to include a structure of three guide rollers, but the structure of the guide roller 600 is not limited thereto. For example, in one embodiment (eg, Fig.10 ), the first roller module 800a and the second roller module 800b may include two guide rollers respectively. In another embodiment not shown, the first roller module 600a may include three guide rollers, and the second roller module 600b may include two guide rollers.

[0089] The wire transfer device 10 may include a holder 700 for connecting the wire 11 and the foil 21. According to one embodiment, the holder 700 may include: a first end 701 configured to be connected to the wire 11; and a second end 702 configured to be connected to the foil 21. For example, the first end 701 may be connected to the wire 11 using a bonding member 703 (e.g., a pin, a rivet, or a bolt). The second end 702 may be attached to the foil 21 using an adhesive member (e.g., an adhesive tape) not shown. In one embodiment, the holder 700 may be referred to as a foil fixing unit.

[0090] The wire 11 may be wound on the wire drum 200 by the wire transfer device 10. The fixture 700 and the foil 21 may be moved toward the wire transfer device 10. Figure 4 The fixture 700 may be moved from the first point of the fixture 700a to the second point of the fixture 700b via the guide roller 600. The foil 21 moved by the wire 11 and the fixture 700 may be moved again to a position for manufacturing (eg, coating of an electrode).

[0091] Figure 7a and Figure 7b is a diagram of a guide roller according to one embodiment. Figure 8a and Figure 8b is a diagram of a guide roller according to another embodiment. Figure 9a and Figure 9b is a diagram of a guide roller according to yet another embodiment. Figure 7a , Figure 8a and Figure 9a Each of them is a side view of a portion of the guide roller 600 (for example, the first guide roller 610 ).

[0092] Reference Figure 7a , Figure 7b , Figure 8a , Figure 8b , Figure 9a and / or Figure 9b , the guide roller 600 can be designed into various shapes. Figure 4 and Figure 6 The description of the guide roller 600 may be applicable to Figure 7a , Figure 7b , Figure 8a , Figure 8b , Figure 9a and / or Figure 9b Guide roller 600.

[0093] The guide roller 600 may provide a moving path for the wire 11 and the fixing member 700. For example, the guide roller 600 may include a protruding area 601 providing a moving path for the fixing member 700, and a groove area 602 extending from the protruding area 601 and used to accommodate the wire 11. For example, the fixing member 700 may contact the protruding area 601 and move.

[0094] The shape of the protruding area 601 can be selectively designed. Figure 7a , Figure 7b , Figure 8a and Figure 8b , the protruding area 601 may include a plurality of protrusions 601a for contacting the fixing member 700. The plurality of protrusions 601a may be spaced apart from each other. The plurality of protrusions 601a may include a curved surface configured to surround at least a portion (eg, a side surface) of the fixing member 700.

[0095] The curvature and / or shape of the protrusion 601a can be selectively designed to adjust the tension of the wire 11 and / or the foil 21. The protrusion 601a can surround at least a portion of the fixture 700. Referring to one embodiment (e.g., Figure 7a and 7b ), the guide roller 600 may include a protrusion 601a protruding substantially in a star shape. Referring to one embodiment (eg, Figure 8a and Figure 8b ), the guide roller 600 may include a protrusion 601a protruding substantially in a flower shape. Referring to one embodiment (for example, Figure 9a and Figure 9b ), the protruding area 601 can be formed basically in a circle. Figures 7a to 9b The shape of the protrusion 601a shown in FIG. 6 is optional. For example, if it is a structure for adjusting the tension of the wire 11 and / or the foil 21, the shape of the protrusion 601a may be changed.

[0096] The groove area 602 may be formed in a slit or recess shape for accommodating the wire 11. For example, the wire 11 may move in a state of being inserted into the groove area 602.

[0097] According to one embodiment, the guide roller 600 may be arranged to have an angle for adjusting the tension of the wire 11 and / or the foil 21. For example, the first guide roller 610, the second guide roller 620, and the third guide roller 630 may be arranged to have a specified angle relative to each other. In one embodiment, the first guide roller 610, the second guide roller 620, and the third guide roller 630 may have substantially the same shape.

[0098] According to one embodiment, a specified angle X between a first virtual line L1 passing through the center of the first guide roller 610 and the center of the second guide roller 620 and a second virtual line L2 passing through the center (e.g., the rotation axis) of the first guide roller 610 and the center of the third guide roller 630 can be set within a range for adjusting the tension of the wire 11 and / or the foil 21. The second virtual line L2 can be inclined at a specified angle X relative to the first virtual line L1. According to one embodiment, the specified angle X can be about 20 to 25 degrees. By forming a specified angle X of 20 to 25 degrees, the tension of the wire 11 and / or the foil 21 can be set within a preferred range. For example, the wire 11 and / or the foil 21 can be prevented from breaking. In one embodiment, the specified angle X can be 21 to 23 degrees.

[0099] According to one embodiment, as the specified angle X increases, the tension of the wire 11 and / or foil 21 also increases. If the specified angle X is less than 20 degrees, it may be difficult to adjust the position of the wire 11 and / or foil 21 due to the increased tension of the wire 11 and foil 21. If the specified angle exceeds 25 degrees, the wire 11 and / or foil 21 may become detached.

[0100] According to one embodiment, the guide rollers 600 may be arranged to have a spacing for adjusting the tension of the wire 11 and / or the foil 21. For example, a first distance d1 between the center of the first guide roller 610 and the center of the second guide roller 620 may be set within a range for adjusting the tension of the wire 11 and / or the foil 21. According to one embodiment, the first distance d1 may be set to 40 mm to 50 mm. By setting the first distance d1 to 40 mm to 50 mm, the tension of the wire 11 and / or the foil 21 may be set within a preferred range. For example, the wire 11 and / or the foil 21 may be prevented from breaking.

[0101] Figure 7b The angle and spacing of the guide rollers 600 described in the Figure 8b or Figure 9b Guide roller 600.

[0102] Fig.10 is a front view of a guide roller installed on a foil transfer device according to one embodiment. Fig.11 is a perspective view of a guide roller installed on a foil transfer device according to one embodiment.

[0103] Reference Fig.10 and / or Fig.11 , the guide roller 800 may be installed on the foil transfer device 20 . Figure 4 , Figure 6 as well as Figures 7a to 9b At least a portion of the description of the guide roller 600 described in Fig.10 and / or Fig.11The guide roller 800. For example, Figure 6 or Figure 7b The description of the first guide roller 610, the second guide roller 620 and the supporting member 640 may be applied to Fig.10 and / or Fig.11 The first guide roller 810, the second guide roller 820 and the supporting member 840 are provided.

[0104] According to one embodiment, the number of rollers included in the guide roller 800 may be selectively designed. For example, the guide roller 800 may include a first roller module 800a and a second roller module 800b, each roller module including two guide rollers.

[0105] The roller modules 800a, 800b may include a first guide roller 810 and a second guide roller 820 spaced apart from the first guide roller 810. The first roller module 800a may be formed symmetrically with the second roller module 800b.

[0106] The first guide roller 810 and the second guide roller 820 may include a protruding area 801 for guiding a fixing member (eg, Figure 5 and a groove area 802 for guiding the path of the wire 11.

[0107] The guide roller 800 may include a support member 840 for coupling the first guide roller 810 and the second guide roller 820 to the foil transfer device 20. The support member 840 may include at least one fastening portion 841. The fastening portion 841 may include a bolt or a nut.

[0108] The above contents are merely examples of applying the principles of the present disclosure, and other configurations may also be included without departing from the scope of the present disclosure.

[0109] Although the embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and it is obvious to those skilled in the art that various modifications and variations can be made without departing from the technical concept of the present invention as described in the claims. For example, the present invention can be implemented by deleting some components in the above embodiments, or by combining the embodiments.

Claims

1. A wire transfer device, comprising: frame; a wire drum connected to the frame and on which the wire is wound; a fixing member including a first end connected to the wire and a second end opposite to the first end and connected to the foil; as well as guide rollers, guiding the moving paths of the wire and the fixing member, The guide roller comprises: a groove area for receiving the wire; as well as A protruding area extends from the groove area and contacts the fixing member.

2. The wire transfer device according to claim 1, wherein: The protruding area includes a plurality of protrusions having a curved surface surrounding at least a portion of the fixing member.

3. The wire transfer device according to claim 1, wherein: The guide rollers include a first guide roller, a second guide roller and a third guide roller which are separated from each other. A second virtual line passing through the center of the first guide roller and the center of the third guide roller is inclined at a designated angle with respect to a first virtual line passing through the center of the first guide roller and the center of the second guide roller.

4. The wire transfer device according to claim 3, wherein: The specified angle is 20 degrees to 25 degrees.

5. The wire transfer device according to claim 1, further comprising: The driving device includes a motor, wherein the motor provides a driving force for rotating the wire drum.

6. The wire transfer device according to claim 5, wherein: The driving device comprises: at least one pulley that rotates according to the driving force generated by the motor; and a chain connected to the at least one pulley and the drum, The frame includes a chain drive frame supporting the at least one pulley.

7. The wire transfer device according to claim 5, further comprising: Limit sensors, sensing the movement of the wire, The motor operates based on information sensed by the limit sensor.

8. The wire transfer device according to claim 1, further comprising: A tension adjustment unit, for adjusting the tension of the line, The tension adjustment unit comprises: a tension adjustment rack, moving in a first direction according to the tension of the wire; a tension adjustment device to prevent the tension adjustment rack from moving along the first direction; and A gas lifter is used to increase the tension of the line.

9. The wire transfer device according to claim 8, further comprising: An encoder module, the encoder module comprising: an encoder bracket connected to the linear shaft of the tension adjustment portion; an encoder roller connected to the encoder bracket and guiding the movement of the wire; and An encoder senses the number of rotations of the encoder roller.

10. The wire transfer device according to claim 8, wherein: The tension adjusting portion is connected to the frame and includes a screw structure for moving the tension adjusting device in a second direction perpendicular to the first direction.

11. The wire transfer device according to claim 1, wherein: The wire drum comprises: a receiving area for receiving the wire; and A reel drive shaft extends from the receiving area and is rotatably connected to the frame.

12. The wire transfer device according to claim 11, further comprising: A brake is connected to the drum drive shaft.

13. The wire transfer device according to claim 1, wherein: The frame and the guide roller are mounted on the foil transfer device in a state of being spaced apart from each other.

14. The wire transfer device according to claim 1, wherein: The guide roller comprises ceramic.

15. The wire transfer device according to claim 1, wherein: The guide roller comprises: A first roller module is arranged outside the structure of the foil transfer device; and The second roller module is disposed inside the structure of the foil transfer device.

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