Automatic tape supply device for battery

Abstract

An automatic tape supply device for a battery according to the present invention comprises: a roll mounting unit on which a tape roll on which a tape is wound in a spiral shape is mounted; and a first guide unit spaced apart from the roll mounting unit in a transfer direction of the tape and guiding the tape unwound and transferred from the tape roll. The first guide unit may be configured to support the tape in a state in which a width direction of the tape is twisted at a predetermined angle with respect to an axial direction of the tape roll.

Description

Automatic tape feeder for batteries

[0001] The present invention relates to a tape feeder for a battery. This application is a priority application for Korean Patent Application No. 10-2024-0192961 filed on December 20, 2024, and all contents disclosed in the specification and drawings of said application are incorporated by reference into this application.

[0002] Secondary batteries, which possess electrical characteristics such as high energy density and high applicability across product groups, are widely applied not only to portable devices but also to electric vehicles (EVs) or hybrid electric vehicles (HEVs) powered by electric sources. These secondary batteries are attracting attention as a new energy source for enhancing eco-friendliness and energy efficiency, as they possess not only the primary advantage of drastically reducing the use of fossil fuels but also the advantage of generating no by-products from energy use.

[0003] Currently, widely used types of secondary batteries include lithium-ion batteries, lithium-polymer batteries, nickel-cadmium batteries, nickel-hydrogen batteries, and nickel-zinc batteries. The operating voltage of these individual secondary battery cells, or individual battery cells, may not be high. Therefore, if a higher output voltage is required, multiple battery cells are connected in series to form a battery pack. Additionally, depending on the charge / discharge capacity required for the battery pack, multiple battery cells are connected in parallel to form a battery pack. Accordingly, the number of battery cells included in the battery pack can be varied depending on the required output voltage and / or charge / discharge capacity.

[0004] Typically, a battery cell may include a battery housing made of metal, an electrode assembly accommodated within the battery housing, an electrolyte injected into the battery housing, and a housing cover that blocks an opening of the battery housing. Additionally, it may further include electrode terminals, a current collector electrically connecting the battery housing and the electrode assembly, an insulating gasket or a sealing gasket.

[0005] Tapes for sealing or bonding are widely used in the aforementioned battery cells. To maximize the internal space of the battery cell, these tapes can be manufactured with a thin thickness (17.5 µm) and a narrow width (17 mm). Furthermore, these tape rolls are formed by winding the tape onto a cylindrical core having a width equal to that of the tape.

[0006] Figure 1 is a product photograph of a tape roll that is conventionally used.

[0007] Referring to Fig. 1, as more tape is wound around the core tube, problems arise where the tape protrudes, deforms, or lifts (refer to reference numeral D). This may be because the tape is very thin and narrow. Therefore, currently, it is difficult to wind more than approximately 500m of tape onto a single roll. Consequently, during the taping process for battery cells, the tape roll must be replaced every 500m, which leads to a decrease in the production speed of battery cells.

[0008] The present invention was devised in consideration of the aforementioned problems, and has the purpose of providing an automatic tape feeder for batteries that uses a tape roll with a longer length of tape wound per roll in a taping process and can automatically supply the tape wound on the tape roll to a stable and accurate position.

[0009] In addition, another objective is to provide an automatic tape feeder for batteries with an improved structure that prevents the tape from being damaged by friction during the tape feeding process.

[0010] The technical problems that the present invention aims to solve are not limited to those described above, and other unmentioned problems will be clearly understood by those skilled in the art from the description of the invention below.

[0011] To solve the above objective, the automatic tape feeder for a battery according to the present invention comprises: a roll mounting portion on which a tape roll is mounted, wherein the tape is wound spirally; and a first guide portion spaced apart from the roll mounting portion in the direction of transport of the tape and guiding the tape unwound from the tape roll and transported therefrom; wherein the first guide portion is configured such that the width direction of the tape is supported at a predetermined angle with respect to the axial direction of the tape roll.

[0012] According to the present invention, the invention further comprises a second guide member that guides the tape between the roll mounting member and the first guide member and is arranged to be movable relative to the tape roll in the axial direction of the tape roll.

[0013] In addition, the first guide part is characterized by being tiltable.

[0014] In addition, the first guide member comprises a first guide roller and a second guide roller arranged facing each other, and is characterized in that the tape is supplied between the first guide roller and the second guide roller.

[0015] In addition, the first guide part is characterized by having an outer surface formed to have curvature along the central axis direction.

[0016] In addition, the first guide part is characterized in that the outer surface is formed as a curved surface that is recessed inward along the central axis direction.

[0017] In addition, the first guide member comprises a first guide roller and a second guide roller arranged facing each other, and the tape is supplied between the first guide roller and the second guide roller, wherein the first guide roller is formed with a curved surface having an outer surface that is recessed inward along the central axis direction, and the second guide roller is formed with a curved surface having an outer surface that protrudes outward along the central axis direction.

[0018] In addition, it is characterized by further including a second guide part that guides the tape between the roll mounting part and the first guide part, and is formed such that its outer surface has curvature along the central axis direction.

[0019] In addition, the second guide member is characterized by being arranged to be movable relative to the tape roll in the axial direction of the tape roll.

[0020] In addition, it is characterized by further including a second guide part that guides the tape between the roll mounting part and the first guide part and is tiltable.

[0021] In addition, the second guide part is characterized by having an outer surface formed to have curvature along the central axis direction.

[0022] According to the present invention, since a spiral tape roll having a longer length than conventional ones is used, the replacement cycle of the tape roll during the taping process can be extended, and thus the productivity of the battery cell can be improved.

[0023] In addition, by using a spiral tape roll, problems such as the tape twisting or folding during the tape feeding process can be prevented.

[0024] In addition, it can prevent the problem of the tape's adhesive material being damaged.

[0025] Furthermore, the position of the tape unwound and supplied from the spiral tape roll changes in the direction of the central axis of the tape roll, but in the present invention, the change in the position of the tape during the tape transport process is restricted, thereby enabling the tape to be supplied to a stable and accurate position.

[0026] The effects of the present invention are not limited to the effects described above, and unmentioned effects will be clearly understood by those skilled in the art from this specification and the attached drawings.

[0027] The following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further enhance understanding of the technical concept of the present invention together with the detailed description of the invention provided below; therefore, the present invention should not be interpreted as being limited only to the matters described in such drawings.

[0028] Figure 1 is a product photograph of a tape roll that is conventionally used.

[0029] FIG. 2 is a schematic perspective view of a tape roll used in an automatic tape feeder for batteries according to one embodiment of the present invention.

[0030] FIG. 3 is a schematic diagram of an automatic tape feeder for batteries according to one embodiment of the present invention.

[0031] Figure 4 is a diagram showing the configuration of the automatic tape feeder for batteries shown in Figure 3, viewed from below.

[0032] FIG. 5 is a schematic perspective view of a first guide part according to another embodiment of the present invention.

[0033] FIG. 6 is a schematic diagram of a first guide part according to another embodiment of the present invention.

[0034] FIG. 7 is a schematic diagram of an automatic tape feeder for batteries according to another embodiment of the present invention.

[0035] FIG. 8 is a diagram showing the configuration of the automatic tape feeder for batteries shown in FIG. 7, viewed from below.

[0036] FIG. 9 is a schematic diagram of a first guide part according to another embodiment of the present invention.

[0037] FIG. 10 is a drawing for explaining a second guide part according to another embodiment of the present invention.

[0038] FIG. 11 is a drawing for explaining a second guide part according to another embodiment of the present invention.

[0039] FIG. 12 is a drawing for explaining a second guide part according to another embodiment of the present invention.

[0040] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, and should be interpreted in a meaning and concept consistent with the technical spirit of the present invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention.

[0041] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention; thus, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application.

[0042] Meanwhile, although terms indicating directions such as up, down, left, right, front, and back may be used in this specification, these terms are used merely for convenience of explanation and may vary depending on the location of the object or the position of the observer, it is obvious to those skilled in the art of the present invention.

[0043] In an embodiment of the present invention, the X-axis direction shown in the drawing may refer to the left-right direction, the Y-axis direction may refer to the front-back direction perpendicular to the X-axis direction on the horizontal plane (XY plane), and the Z-axis direction may refer to the up-down direction (vertical direction) perpendicular to both the X-axis direction and the Y-axis direction. Additionally, in the orthogonal coordinates shown in the drawing, each axis has a + and - direction, and X, Y, and Z indicated in the drawing may refer to the + direction, while the opposite direction may refer to the - direction.

[0044] In addition, this specification includes various embodiments. Detailed descriptions of identical or similar parts regarding other embodiments are omitted, and the description focuses on the parts where each embodiment differs.

[0045]

[0046] FIG. 2 is a schematic perspective view of a tape roll used in an automatic tape feeder for a battery according to an embodiment of the present invention. FIG. 3 is a schematic configuration diagram of an automatic tape feeder for a battery according to an embodiment of the present invention. FIG. 4 is a configuration diagram of the automatic tape feeder for a battery shown in FIG. 3, viewed from below.

[0047]

[0048] An automatic tape supply device (1) for a battery according to one embodiment of the present invention may be for supplying (transferring) a tape wound on a tape roll (10) to a work location, that is, a place where work on a battery cell is performed.

[0049]

[0050] Referring to FIG. 2, the tape roll (10) used in the present invention may include a core tube (11) and a tape (12). The core tube (11) may be formed in a cylindrical shape and may be formed in a hollow shape with an empty interior. The core tube (11) may be formed to be long in its axial direction, that is, in the vertical direction with respect to FIG. 2. The axial length of the core tube (11), that is, the width of the core tube (11), may be formed to be wider than the width of the tape (12).

[0051] The tape (12) can be wound onto a tube (11). At this time, the tape (12) can be wound spirally rather than being wound in layers continuously at the same position.

[0052] The meaning of being wound spirally is explained. For example, the explanation is based on the axial direction of the tape roll (10) shown in FIG. 2, that is, the axial direction of the core tube. When the tape (12) starts to be wound from the bottom of the core tube (11), the tape (12) is not wound in a direction parallel to the bottom surface of the core tube (11), but can be wound in a direction that is slightly inclined upward relative to the bottom surface of the core tube (11). Then, as the tape (12) is wound onto the core tube (11), its position can gradually move toward the top of the core tube (11). And when the position where the tape (12) is wound reaches the top of the core tube (11), the tape (12) is wound again in a direction that is slightly inclined downward, and thus the position where the tape (12) is wound descends to the bottom of the core tube (11). The tape (12) is wound onto the core tube (11) by repeating this process. Therefore, a tape of much longer length can be stably wound onto a core tube compared to a tape roll wound by continuously overlapping at the same location as in the past.

[0053] Meanwhile, the process of unwinding the tape from the tape roll can be performed in the reverse order of the tape winding process. Accordingly, when the tape is unwound from the tape roll, the unwinding position can be changed. Specifically, the position where the tape is unwound from the core tube can be moved back and forth along the width of the core tube.

[0054]

[0055] Referring to FIGS. 3 and 4, a tape automatic feeder (1) for a battery according to one embodiment of the present invention may include a roll mounting part (100) and a first guide part (200).

[0056]

[0057] The roll mounting part (100) is a part on which a tape roll (10) is mounted. The roll mounting part (100) may be configured to be rotatable so that the tape can be unwound from the mounted tape roll (10). For example, the roll mounting part (100) may be implemented in the form of a drive shaft inserted into a core tube (11). The tape roll (10) rotates in conjunction with the rotation of the roll mounting part (100), and the tape (12) can be unwound from the core tube (11). On the other hand, depending on the case, the roll mounting part (100) may be fixed, the tape roll (10) may be loosely fitted into the roll mounting part (100), and the tape (12) may be pulled out by the guide parts (200, 300) described later, so that the tape roll (10) rotates and the tape (12) is unwound.

[0058]

[0059] The first guide section (200) is intended to guide the tape (12) that is unwound from the tape roll (10) and transported. The first guide section (200) may be installed spaced apart from the roll mounting section (100) in the direction of transport of the tape. The first guide section (200) may contact the tape (12) and support the tape (12). At this time, the first guide section (200) may support the tape in a state where the width direction of the tape is tilted at a predetermined angle with respect to the axial direction (X-axis direction) of the tape roll (10).

[0060] Specifically, the first guide member (200) may be formed in a cylindrical shape and may be guided while supporting the tape (12) on its outer surface. The first guide member (200) may be installed to be rotatable. The first guide member (200) may be positioned with its central axis direction tilted with respect to the axial direction (X-axis direction) of the tape roll (10). For example, the central axis of the first guide member (200) may be tilted at a 90-degree angle with respect to the axial direction of the tape roll (10) and positioned in the Z-axis direction as shown in FIG. 3.

[0061] The tape (12) unwound from the tape roll (10) is gradually twisted, and when supplied to the first guide section, its direction can be twisted by 90 degrees. In other words, as shown in FIGS. 3 and 4, the direction in which the tape face faces in the tape roll (10) and the direction in which the tape face faces in the first guide section (200) can be twisted by 90 degrees.

[0062]

[0063] According to the embodiment of the above configuration, the tape supplied from the tape roll (10) can be supplied to a stable and accurate position.

[0064] In this regard, as described above, when the tape (12) is unwound from the tape roll (10), the unwound position may change along the width direction of the core tube (11). For example, as described with reference to FIG. 4, the unwound position of the tape (12) may change back and forth in the left-right direction (X-axis direction). This change in position may occur because the tape is wound in a spiral shape. Accordingly, there is a need to limit this change in the position of the tape so that after a certain point, the tape is transported to the work position through a fixed path, and this process can be performed by the first guide part (200).

[0065] Specifically, the tape unwound from the tape roll is supplied to the first guide section (200), at which time the tape (12) is supplied to the first guide section (200) with its direction turned 90 degrees. Here, looking at FIG. 4, when the tape is unwound, the change in position of the tape occurs only in the width direction of the core tube, that is, in the X-axis direction, and may not occur in the Z-axis direction, that is, in the direction of the center axis of the first guide section (200). Therefore, even when the tape is supplied from the tape roll (10) to the first guide section (200), the change in position of the tape may occur only in the X-axis direction.

[0066] However, the first guide member (200) is positioned in the Z-axis direction perpendicular to the X-axis direction, so that it can support the tape (12) in the X-axis direction. That is, the position of the tape in the X-axis direction is fixed on the outer surface of the first guide member (200), and thus, the change in the position of the tape in the X-axis direction can be restricted by the first guide member. That is, the change in the position of the tape due to the effect of being wound spirally can be restricted by the first guide member (200). Accordingly, from the point of passing through the first guide member (200), the tape can be stably transported along a predetermined path without changing its position.

[0067]

[0068] Again, referring to FIGS. 3 and FIGS. 4, the automatic tape feeder (1) for a battery according to the present embodiment may further include a second guide part (300).

[0069] The second guide section (300) may be positioned between the roll mounting section (100) and the first guide section (200). The second guide section (300) may guide the tape (12) being transferred from the roll mounting section (100) to the first guide section (200). The second guide section (300) may be positioned to be movable relative to the tape roll (10) in the axial direction (X-axis direction) of the tape roll.

[0070] Specifically, the second guide section (300) is formed in a cylindrical shape and may be positioned spaced apart from the roll mounting section (100). The central axis direction (X-axis direction) of the second guide section (300) may be the same as the axial direction of the tape roll. The second guide section (300) may be installed to be rotatable with respect to the central axis. The second guide section (300) may support and guide the tape unwound from the tape roll (10). More specifically, the tape (12) unwound from the tape roll (10) may be transported to a work position, i.e., a position where the tape is to be attached (or nearby thereto), while being guided along the second guide section (300), the first guide section (200), and the auxiliary guide section (400) described later. In this process, the second guide section (300) is positioned at the very front end based on the direction of transport of the tape, and can first support and guide the tape (12) unwound from the tape roll (10).

[0071] The second guide part (300) and the tape roll (10) can reciprocate relative to each other, and the direction of movement may be the axial direction of the tape roll (10). Here, moving relative to each other may mean that the relative position between the two changes. Specifically, the second guide part (300) may be fixed and the roll mounting part (100) may reciprocate. Then, from the perspective of the relative position between the tape roll (10) and the second guide part (300), the second guide part (300) may reciprocate relative to the tape roll (10). Conversely, even if the roll mounting part (100) is fixed and the second guide part (300) reciprocates, from the perspective of the relative position between the tape roll (10) and the second guide part (300), it may be reciprocated.

[0072] The movement of the second guide section (300) described above can be linked to the position where the tape is unwound. For example, when the tape (12) is unwound at the end of the branch tube in the -X-axis direction, the second guide section (300) can also be moved in the -X-axis direction. Conversely, when the tape is unwound near the end of the branch tube in the +X-axis direction, the second guide section (300) can also be moved in the +X-axis direction. That is, the second guide section (300) can be moved along the position where the tape is unwound.

[0073]

[0074] According to the embodiment of the above configuration, damage to the tape due to friction between the second guide part (300) and the tape (12) can be prevented. Specifically, since the tape is wound spirally on the tape roll (10), the position where the tape is unwound can be repeatedly changed in the X-axis direction, and accordingly, the position where the tape is supplied to the second guide part (300) can also be changed in the X-axis direction on the second guide part (300). However, if the tape moves, i.e., slides, in the X-axis direction while in contact with and supported by the second guide part (300), there is a risk that the adhesive material applied to the surface of the tape may be peeled off or its adhesive strength may be reduced due to friction with the second guide part (300). Alternatively, there may be a risk that the tape will not slide well on the second guide part (300) due to the adhesive strength of the tape, and may fold or wrinkle.

[0075] However, in this embodiment, since the second guide part (300) moves relative to the position where the tape is unwound, the slippage of the tape on the second guide part can be reduced while the tape (12) is unwound. Therefore, damage to the tape can be prevented or suppressed.

[0076]

[0077] Meanwhile, when the tape is unwound, the side of the tape where the adhesive material is provided may come into contact with the second guide part (300). Accordingly, the second guide part (300) may be composed of a material that allows the adhesive material to detach easily, for example, a material such as Teflon. Also, the first guide part (200) described above and the auxiliary guide part (400) described later may also be composed of a material such as Teflon.

[0078]

[0079] Refer again to FIG. 3 and FIG. 4. The automatic tape feeder for a battery according to the present embodiment may further include an auxiliary guide section (400). The auxiliary guide section (400) may be positioned behind the first guide section (200) based on the direction of tape transport. The auxiliary guide section (400) is formed in a cylindrical shape and may be installed rotatably. The auxiliary guide section (400) may receive, support, and guide the tape that has passed through the first guide section (200). The tape (12) may be transported along the auxiliary guide section (400) to a working position. The auxiliary guide section (400) may be installed at multiple points considering the length of the path along which the tape is transported. Additionally, the auxiliary guide section (400) may be installed to tilt relative to the first guide section (200). Specifically, as shown in FIG. 3, the auxiliary guide section (400) may be installed in the same direction as the second guide section (300). Then, the auxiliary guide section (400) can be tilted 90 degrees relative to the first guide section (200). When the auxiliary guide section (400) is installed in this way, the tape that has been misaligned while passing through the first guide section (200) can return to its original direction in the auxiliary guide section.

[0080]

[0081] FIG. 5 is a schematic perspective view of a first guide part according to another embodiment of the present invention.

[0082] Referring to FIG. 5, the first guide portion (200A) according to the present embodiment may be formed such that its outer surface has curvature along the central axis direction.

[0083] Specifically, the first guide portion (200A) may be formed in a cylindrical shape and may be guided while the tape (12) is supported on its outer surface. The first guide portion (200A) may be installed to be rotatable. In particular, the outer surface of the first guide portion (200A) may be formed to have curvature along the central axis direction, that is, the Z-axis direction. For example, as shown in FIG. 5, the outer surface of the first guide portion (200A) may be formed as a curved surface in which the central part is indented inward compared to the ends on both sides with respect to the central axis direction. In other words, the outer surface of the first guide portion (200A) may be formed as a curved surface that is concave inward. Alternatively, the first guide portion (200A) may be formed in the shape of a concave roll.

[0084] According to the present embodiment, the tape (12) guided by the first guide part (200A) can be transported while being stably supported in the middle part of the first guide part without being deviated toward the two ends of the first guide part (200A). In particular, in the case of the present invention, the tape is supplied while changing the unwinding position. Considering the effect resulting therefrom, configuring the first guide part (200A) as in the present embodiment may be very important for the accurate transport of the tape.

[0085]

[0086] FIG. 6 is a schematic diagram of a first guide part according to another embodiment of the present invention.

[0087] Referring to FIG. 6, the first guide portion (200B) according to the present embodiment may be configured to be tiltable. Specifically, the first guide portion (200B) may be formed in a cylindrical shape and may be guided while supporting a tape (12) on its outer surface. The outer surface of the first guide portion (200B) may be formed in a curved shape that is concave inward. That is, the first guide portion (200B) may be formed in a concave roll shape. As shown by the dashed line in FIG. 6, the first guide portion (200B) may be tiltable with the Y-axis direction as the axis of rotation. That is, the tape is supported on the outer surface of the first guide portion (200B), and at this time, the width direction of the tape (12) may be tilted.

[0088] Referring to FIG. 4, in the case of the present invention, depending on the position where the tape is unwound, the angle at which the tape twists from the second guide section (300) to the first guide section (200), that is, the degree of twisting of the tape in this section, may vary. Specifically, as described with reference to FIG. 4, the degree of twisting of the tape may vary when the tape is supplied from the end in the -X-axis direction and when it is supplied from the end in the +X-axis direction. For example, the tape may twist the most when the tape is supplied from the end in the -X-axis direction. And, there may be a risk that the adhesive material may stick together or wrinkle as the tape twists excessively.

[0089] In the case of the present embodiment, the first guide part (200) can have its tilted angle appropriately changed according to the degree of tape distortion. Therefore, the tape can be supplied to the first guide part in a less distorted state, and thus the above-mentioned problem can be prevented.

[0090] For reference, the degree of tape distortion can be determined by the position where the tape is unwound from the tape roll. In another aspect, as illustrated in FIG. 4, when the tape is primarily guided in the second guide section (300), the degree of tape distortion between the second guide section (300) and the first guide section (200) can be determined by the position of the tape on the second guide section (300). In yet another aspect, when the second guide section (300) moves relative to the position where the tape is supplied, the position of the second guide section (300) can be a factor in determining the degree of tape distortion. Accordingly, the tilting of the first guide section (200B) can be controlled in conjunction with the position where the tape is unwound from the tape roll, the position of the second guide section, etc., according to the above conditions.

[0091] Meanwhile, in describing the embodiment of FIG. 6, the first guide part (200B) in FIG. 6 is described as having a concave roll shape. However, the shape of the first guide part (200B) is not limited to this and may be formed in a cylindrical shape as shown in FIG. 3.

[0092]

[0093] FIG. 7 is a schematic diagram of an automatic tape feeder for a battery according to another embodiment of the present invention. FIG. 8 is a diagram of the automatic tape feeder for a battery shown in FIG. 7, viewed from below.

[0094] Referring to FIGS. 7 and 8, the automatic tape feeder (1) for a battery according to the present embodiment may include a roll mounting portion (100) and a first guide portion (200C). Additionally, the automatic tape feeder (1) for a battery may further include a second guide portion (300) and an auxiliary guide portion (400).

[0095] In particular, the first guide section (200C) according to the present embodiment may include a first guide roller (210) and a second guide roller (220). The tape (12) may be transported and guided between the first guide roller (210) and the second guide roller (220).

[0096] Specifically, the first guide roller (210) and the second guide roller (220) may be formed in a cylindrical shape. The first guide roller (210) and the second guide roller (220) may be arranged facing each other. The first guide roller (210) and the second guide roller (220) may be arranged with their central axis directions inclined with respect to the axis direction of the tape roll. The first guide roller (210) and the second guide roller (220) may be installed to be rotatable. At this time, since the tape passes between the first guide roller and the second guide roller, the first guide roller (210) and the second guide roller (220) may have opposite rotation directions when considering the conveying direction of the tape.

[0097] According to the present embodiment, a tape can be stably supported and guided between the first guide roller (210) and the second guide roller (220). More specifically, the tape can be guided while being primarily supported by either the first guide roller or the second guide roller. For example, when considering the tape transport path with reference to FIG. 8, the tape can be primarily supported and guided by the first guide roller (210), which is positioned close to the tape roll (10) in the X-axis direction. The second guide roller (220) assists the first guide roller (210) and can suppress or mitigate the tape from deviating from its position or wrinkling.

[0098]

[0099] FIG. 9 is a schematic diagram of a first guide part according to another embodiment of the present invention.

[0100] Referring to FIG. 9, the first guide section (200D) according to the present embodiment may include a first guide roller (210D) and a second guide roller (220D). The tape may be transported and guided between the first guide roller (210D) and the second guide roller (220D).

[0101] In particular, in the present embodiment, the first guide roller (210D) may be formed with a curved surface whose outer surface is recessed inward along the central axis direction. For example, the first guide roller (210D) may be formed in the shape of a concave roll. The second guide roller (220D) may be formed with a curved surface whose outer surface protrudes outward along the central axis direction. For example, the second guide roller (220D) may be formed in the shape of a crowned roll. The first guide roller (210D) and the second guide roller (220D) are arranged facing each other, and the concave outer surface of the first guide roller and the protruding outer surface of the second guide roller may interlock with each other.

[0102] According to the present embodiment, the tape (12) can be supported on the concave surface of the first guide roller (210D). Accordingly, the tape (12) can be transported while being stably supported in the middle part of the first guide roller (210D) without being displaced toward the two ends of the first guide roller (210D). In addition, the protruding outer surface of the second guide roller (220D) can suppress or mitigate the tape from shifting or wrinkling.

[0103]

[0104] FIG. 10 is a drawing for explaining a second guide part according to another embodiment of the present invention.

[0105] Referring to FIG. 10, the second guide part (300A) according to the present embodiment may be formed such that its outer surface has curvature along the central axis direction.

[0106] Specifically, the second guide portion (300A) may be formed in a cylindrical shape. The outer surface of the second guide portion (300A) may be formed to have curvature along the central axis direction, that is, the X-axis direction. For example, the outer surface of the second guide portion (300A) may be formed as a curved surface in which the central part is indented inward compared to the ends on both sides relative to the central axis direction. In other words, the outer surface of the second guide portion may be formed as a curved surface that is concave inward. Alternatively, the second guide portion may be formed in the shape of a concave roll.

[0107] As illustrated in FIG. 10 (a) (see FIG. 4 together), the tape (12) may be supported at a position spaced apart in the +X-axis direction from the center of the second guide section (300A), which may be when the tape is unwound at the end side in the +X-axis direction of the tape roll. As illustrated in FIG. 10 (b), the tape (12) may be supported at a central position of the second guide section (300A), which may be when the tape is unwound at the center of the tape roll (10). As illustrated in FIG. 10 (c), the tape may be supported at a position spaced apart in the -X-axis direction from the center of the second guide section (300A), which may be when the tape is unwound at the end side in the -X-axis direction of the tape roll.

[0108] According to the present embodiment, the tape (12) can be supported on the concave surface of the second guide part (300A). Accordingly, the tape can be transported while being stably supported on the second guide part (300A). In particular, even when the tape (12) slides along the axial direction of the second guide part on the second guide part (300A), it can move stably along the curved surface.

[0109]

[0110] FIG. 11 is a drawing for explaining a second guide part according to another embodiment of the present invention.

[0111] Referring to FIG. 11, the second guide portion (300B) according to the present embodiment may be formed such that its outer surface has curvature along the central axis direction. Additionally, the second guide portion (300B) may be positioned to be movable relative to the tape roll in the axial direction of the tape roll.

[0112] Specifically, the second guide portion (300B) may be formed in a cylindrical shape. The outer surface of the second guide portion (300B) may be formed to have curvature along the central axis direction, that is, the X-axis direction. For example, the outer surface of the second guide portion (300B) may be formed as a curved surface in which the central part is sunken inward compared to the ends on both sides with respect to the central axis direction. That is, the second guide portion may be formed in the shape of a concave roll.

[0113] The second guide section (300B) can be positioned to be movable in the axial direction of the tape roll (10), that is, in the X-axis direction. Alternatively, the tape roll can move in the X-axis direction (i.e., the movement of the roll mounting section). The relative movement between the second guide section and the tape roll has been explained previously.

[0114] According to the present embodiment, the tape (12) can be stably supported on the curved surface of the second guide part (300B). Furthermore, since the second guide part (300B) moves relative to the position where the tape is unwound, the slippage of the tape on the second guide part (300B) can be reduced while the tape (12) is unwound. Therefore, damage to the tape can be prevented or suppressed.

[0115]

[0116] FIG. 12 is a drawing for explaining a second guide part according to another embodiment of the present invention.

[0117] Referring to FIG. 12, the second guide portion (300C) according to the present embodiment can be arranged to be tiltable. Specifically, the second guide portion (300C) can be formed in a cylindrical shape. As shown in FIG. 12, the second guide portion (300C) can be tiltable with the Y-axis direction as the axis of rotation.

[0118] In this regard, as previously explained, while the tape is being transported, the tape can slide along the central axis direction of the second guide part, that is, the X-axis direction, on the second guide part. At this time, if the second guide part (300C) tilts according to the position of the tape, the tape can be supported more stably. In addition, the phenomenon of the tape slipping on the second guide part (300C) can also be reduced.

[0119] In particular, the outer surface of the second guide part (300C) can be formed as a curved surface in which the central part is sunken inward compared to the ends on both sides with respect to the central axis direction. In other words, the outer surface of the second guide part (300C) can be formed as a curved surface that is concave inward. In this case, the tape can be supported more stably on the curved surface of the second guide part.

[0120]

[0121] According to the automatic tape feeder for batteries with the configuration described above, a tape roll wound spirally can be used in the battery cell manufacturing process. Accordingly, the productivity of battery cells can be improved.

[0122] In addition, when using a spiral tape roll, problems such as the tape twisting or folding during the tape feeding process can be prevented, and problems such as damage to the adhesive material of the tape can also be prevented. Furthermore, the position of the tape unwound and supplied from the spiral tape roll changes in the vertical direction (i.e., in the direction of the central axis of the tape roll), but in the present invention, by restricting the change in the position of the tape during the tape transport process, the tape can be supplied to a stable and accurate position.

[0123]

[0124] Although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above. Various modifications are possible by those skilled in the art without departing from the essence of the invention as claimed in the claims, and such modifications should not be understood individually from the technical spirit or perspective of the present invention.

[0125] [Explanation of the symbol]

[0126] 1: Automatic tape feeder for batteries

[0127] 10: Tape roll

[0128] 11: Geomancer

[0129] 12: Tape

[0130] 100: Roll mounting part

[0131] 200: 1st Guide Section

[0132] 210: 1st guide roller

[0133] 220: Second guide roller

[0134] 300: 2nd Guide Section

[0135] 400: Auxiliary guide section

Claims

1. A roll mounting portion on which a tape roll, having a tape wound spirally, is mounted; and It includes a first guide part that is spaced apart from the roll mounting part in the conveying direction of the tape and guides the tape being unwound from the tape roll and conveyed; The above-described first guide member is configured to support the tape in a state where the width direction of the tape is twisted at a predetermined angle with respect to the axial direction of the tape roll, thereby forming an automatic tape feeder for a battery.

2. In Paragraph 1, A battery tape automatic feeding device further comprising: a second guide part that guides the tape between the roll mounting part and the first guide part, and is arranged to be movable relative to the tape roll in the axial direction of the tape roll.

3. In Paragraph 1, The above-mentioned first guide part is characterized by being tiltable, in an automatic tape feeder for batteries.

4. In Paragraph 1, The above-mentioned first guide section comprises a first guide roller and a second guide roller arranged facing each other, and the tape is conveyed between the first guide roller and the second guide roller, characterized by an automatic tape feeder for a battery.

5. In Paragraph 1, The above-mentioned first guide part is characterized by having an outer surface formed to have curvature along the central axis direction, in an automatic tape feeder for batteries.

6. In Paragraph 5, The above-mentioned first guide part is characterized by having an outer surface formed as a curved surface that is recessed inward along the central axis direction, in an automatic tape feeder for batteries.

7. In Paragraph 1, The first guide section includes a first guide roller and a second guide roller arranged facing each other, and the tape is transported between the first guide roller and the second guide roller. The first guide roller is formed with an outer surface that is indented inward along the central axis direction, and The above-mentioned second guide roller is characterized by having an outer surface formed as a curved surface protruding outward along the direction of the central axis, in an automatic tape feeder for batteries.

8. In Paragraph 1, A battery tape automatic feeding device further comprising: a second guide part that guides the tape between the roll mounting part and the first guide part, and is formed such that its outer surface has curvature along the central axis direction.

9. In Paragraph 8, A battery tape automatic feeding device characterized in that the second guide member is arranged to be movable relative to the tape roll in the axial direction of the tape roll.

10. In Paragraph 1, An automatic tape feeder for a battery, further comprising: a second guide part that guides the tape between the roll mounting part and the first guide part and is tiltably disposed therein.

11. In Paragraph 10, The above-mentioned second guide part is characterized by having an outer surface formed to have curvature along the central axis direction, in an automatic tape feeder for batteries.

12. In Paragraph 1, The above-mentioned first guide section is characterized by including a Teflon material, in an automatic tape feeder for batteries.

Images