KR102487118B1 - Tape feeding unit for pouch type secondaty battery taping device - Google Patents

Abstract

The disclosed tape supply unit for a pouch-type secondary battery taping device unwinds and supplies a first or second tape having an adhesive layer formed thereon. The tape supply unit for the pouch-type secondary battery taping device may include a tape auto changer that attaches the first or second tape waiting to be unwound to the first or second tape to be unwound.

Description

Tape supply unit for pouch type secondary battery taping device {TAPE FEEDING UNIT FOR POUCH TYPE SECONDATY BATTERY TAPING DEVICE}

The present invention (Disclosure) relates to a pouch-type secondary battery taping device capable of attaching a tape so that the folded edge of a secondary battery is not restored to a state before folding, and in detail, it is attached to the folded edge of a secondary battery It relates to a tape supply unit for a pouch-type secondary battery taping device that supplies a tape to be used.

Here, background art related to the present invention is provided, and they do not necessarily mean prior art (This section provides background information related to the present disclosure which is not necessarily prior art).

In general, as shown in FIG. 1, a pouch-type secondary battery 1 extends from an electrode assembly 2, a pouch case 3 accommodating the electrode assembly 2, and an electrode assembly 2 to protrude outward. It includes an electrode tab 4 to be.

The pouch case 3 includes a case body 5 providing a space in which the electrode assembly 2 can be accommodated, and a case cover 6 covering the case body 5 . At this time, the edges of the case body 5 and the case cover 6 are normally provided by being sealed.

In addition, the edge 7 of the attached pouch-type secondary battery 1, that is, the edge 7 (terrace) where the electrode tab 4 is not exposed prevents corrosion occurring at the adhesive portion, improves the rigidity of the pouch, , In order to minimize the space occupied by the pouch-type secondary battery 1 by reducing the overall size, it is folded (see FIG. 2), and the folded edge (hereinafter referred to as “folding surface 8”) is in a state before folding. Tapes 9 (see FIG. 2) are attached at regular intervals so as not to be restored.

Meanwhile, the attachment of the tapes 9 to the folding surface 8 is performed automatically using a taping device or the like.

However, conventional taping devices have a problem in that the structure of the tape supply unit is complicated because the tapes 9 are individually supplied corresponding to the attachment positions of the tapes 9 .

Korean Registered Patent Publication No. 10-2111445. Korean Patent Publication No. 10-2020-012729. Korean Registered Patent Publication No. 10-1640969.

The present invention (Disclosure) makes it possible to unwind the tape wound on the bobbin along the length direction of the folding surface (see FIG. 2) of the secondary battery, and to attach the unwound tape to the folding surface at regular intervals. An object of the present invention is to provide a tape supply unit for a pouch-type secondary battery taping device capable of cutting the unwound tape into multiple pieces.

This section provides a general summary of the disclosure and is not a comprehensive disclosure of its full scope or all of its features).

In order to solve the above problem, according to one aspect of the various aspects describing the present invention, a pouch-type secondary battery tape supply for supplying a first or second tape having an adhesive layer formed on the back side by unwinding and supplying In the unit, the tape supply unit may include a tape auto changer for attaching the first or second tape waiting to be unwound to the first or second tape to be unwound.

In the tape supply unit for a pouch-type secondary battery taping device according to one aspect of the present invention, the first and second tapes are provided by being wound around the first and second bobbins in a roll form, respectively, and the first and second tapes are The bobbin can be gripped on the first and second unwinding shafts.

In the tape supply unit for a pouch-type secondary battery taping device according to one aspect of the present invention, the tape auto changer waits for the first tape to be unwound, and the back side of the first tape is placed on the surface of the second tape to be unwound. a first lifting operation guide roll for attaching; and a second lifting operation guide roll waiting for unwinding of the second tape and attaching the surface of the second tape to the back surface of the unwound first tape, wherein the first lifting operation guide roll and the second lifting operation guide roll can face up and down.

In the tape supply unit for a pouch-type secondary battery taping device according to one aspect of the present invention, the first tape is waiting to be unwound while the back surface is attached to the first lifting operation guide roll, and the second tape has the back surface attached to the second lifting operation guide roll. It can be attached to the operating guide roll and wait for unwinding.

In the tape supply unit for a pouch-type secondary battery taping device according to one aspect of the present invention, the tape auto changer controls the first lifting operation guide roll when attaching the first tape waiting to be unwound to the second tape to be unwound. a first lifting operation unit that lowers to the side of two lifting operation guide rolls and lifts the first lifting operation guide roll away from the second lifting operation guide roll when the second tape is attached to the unwound first tape; and when the second tape waiting for unwinding is attached to the first tape to be unwound, the second lifting operation guide roll is raised to the side of the first lifting operation guide roll, and when the first tape is attached to the second tape to be unwound, the second lifting operation guide roll It may further include; a second lifting actuating unit that lowers the first lifting actuating guide roll away from it.

In the tape supply unit for a pouch-type secondary battery taping device according to one aspect of the present invention, the first lifting operation unit includes: a first lifting cylinder; and a first lifting slider configured to move up and down by the operation of the first lift cylinder, wherein the second lift operation unit comprises: a second lift cylinder; and a second lifting slider that lifts and moves by the operation of the second lift cylinder, wherein a first lift actuation guide roll is installed on the first lift slider and a second lift actuation guide roll is installed on the second lift slider. can

In the tape supply unit for a pouch-type secondary battery taping device according to one aspect of the present invention, the tape auto changer enters the first lifting operation guide roll side when attaching the second tape waiting to be unwound to the first tape to be unwound a first unwinding cutter for cutting the first tape; a first unwinding cutter operation unit that moves the first unwinding cutter so that the first tape is cut; a second unwinding cutter that cuts the second tape entering the second lifting operation guide roll side when attaching the first tape waiting to be unwound to the second tape to be unwound; and a second unwinding cutter operating unit moving the second unwinding cutter so as to cut the second tape.

In the tape supply unit for a pouch-type secondary battery taping device according to one aspect of the present invention, the first and second unwinding cutters are provided in the form of a flat plate having a length longer than the width of the first and second tapes, respectively, Tip ends of the first and second unwinding cutters may be inclined from one side to the other side when viewed in a plan view, and saw blades may be formed at the tips of the first and second unwinding cutters.

In the tape supply unit for a pouch-type secondary battery taping device according to one aspect of the present invention, the first unwinding cutter operating unit includes a first unwinding cutter cylinder; and a first unwinding cutter slider moved by the operation of the first unwinding cutter cylinder, wherein the second unwinding cutter operation unit comprises: a second unwinding cutter cylinder; and a second unwinding cutter slider moved by the operation of the second unwinding cutter cylinder, wherein the first unwinding cutter may be mounted on the first unwinding cutter slider, and the second unwinding cutter may be mounted on the second unwinding cutter slider. there is.

In the tape supply unit for a pouch-type secondary battery taping device according to one aspect of the present invention, the first unwinding cutter operating unit prevents the tip of the first unwinding cutter from being exposed in normal times, and when the first tape is cut, the first The first unwinding cutter safety cover exposing the tip of the unwinding cutter; further comprising, the second unwinding cutter operation unit prevents the tip of the second unwinding cutter from being exposed during normal times, and when cutting the second tape, the first unwinding cutter A second unwinding cutter safety cover exposing the cutting edge; may further include.

In the tape supply unit for a pouch-type secondary battery taping device according to one aspect of the present invention, the first and second unwinding cutter safety covers are the first and second unwinding cutters through which the tips of the first and second unwinding cutters enter and exit. It is provided in a plate shape with a cutter entrance, and the first and second unwinding cutter safety covers are mounted on the first and second unwinding cutter sliders, respectively, to secure the first and second unwinding cutters of the first and second unwinding cutter safety cylinders. It can be supported on the extended end of the cylinder rod.

In the tape supply unit for a pouch-type secondary battery taping device according to one aspect of the present invention, the first and second unwinding shafts and the tape auto changer may be installed on the base plate.

According to the present invention, the tape supply unit can be configured simply because the tape is unwound along the longitudinal direction of the folding surface formed on the secondary battery, and the unwound tape is cut into multiple pieces to form tape cut pieces attached to the folding surface. There is, and this makes it possible to provide an effect that facilitates the manufacture and maintenance of the tape supply unit.

According to the present invention, it is possible to provide an effect of continuously unwinding the first and second tapes wound on the first or second bobbin without interruption.

1 is a view showing a pouch type secondary battery related to the present invention.
FIG. 2 is a view showing a state in which edges of the pouch type secondary battery shown in FIG. 1 are folded;
3 is a view showing a pouch-type secondary battery taping device according to the present invention.
4 is a perspective view of the tape supply unit shown in FIG. 3 viewed from the front;
FIG. 5 is a view looking at the tape supply unit at “A” in FIG. 4;
6 is a perspective view of the tape supply unit shown in FIG. 4 viewed from the rear;
7 is an enlarged view of the tape auto changer shown in FIG. 5;
FIG. 8 is a diagram showing an operating state of the tape auto changer shown in FIG. 4, showing a state in which a second tape waiting to be unwound is attached to a first tape to be unwound.
9 is an enlarged perspective view of the tape take-up unit shown in FIG. 4;
10 is a view showing an operating state of the tape cutting means shown in FIG. 4;
Fig. 11 is a view showing one of the guide rolls shown in Figs. 4 to 5;
Fig. 12 is a view showing an example of the movable clamp block shown in Fig. 9;
Fig. 13 is a view showing an example of the movable gripper block shown in Fig. 9;

Hereinafter, an embodiment in which a tape supply unit for a pouch-type secondary battery taping device according to the present invention is implemented will be described in detail with reference to the drawings.

However, the essential (intrinsic) technical idea of the present invention cannot be said to be limited by the embodiments described below, and based on the essential (intrinsic) technical idea of the present invention, a person skilled in the art below It is revealed that the embodiments described in include the range that can be easily proposed as a method of substitution or change.

In addition, since the terms used below are selected for convenience of description, in grasping the essential (intrinsic) technical idea of the present invention, they are not limited to the dictionary meaning and are appropriately interpreted in a meaning consistent with the technical idea of the present invention. It should be.

Among the accompanying drawings, FIG. 3 is a view showing a pouch-type secondary battery taping device related to the present invention, wherein the pouch-type secondary battery taping device includes a tape supply unit 100, a tape bonding unit 200, and a tape completely It includes unit 300.

The tape supply unit 100 according to the present invention supplies the tapes T1 and T2 wound around bobbins B1 and B2 along the longitudinal direction of the folding surface 8 of the secondary battery 1 guided in the upstream process. The unwound tapes T1 and T2 are cut into multiple pieces to form tape cut pieces P1 , P2 , and P3 attached to the folding surface 8 of the secondary battery 1 .

In addition, the tape attachment unit grips the tape cut pieces P1, P2, and P3 cut by the tape supply unit 100 to contact the folding surface 8 of the secondary battery 1, and the tape attachment unit 300 ) presses the upper and lower sides of the tape cut pieces (P1, P2, P3) joined to the folding surface (8) of the secondary battery (1) to the upper and lower surfaces of the pouch case (3) so that they can be completely brought into contact do.

Among the accompanying drawings, FIGS. 4 to 11 are views showing a tape supply unit according to the present invention.

4 to 11, the tape supply unit 100 according to the present invention includes first and second unwinding shafts 120a and 120b, a tape tension maintaining unit 150, a tape take-up unit 160, and a tape cutting unit. means 180.

In addition, the tape supply unit 100 according to the present invention further includes a tape auto changer 130.

In addition, the tape supply unit 100 according to the present invention further includes a base plate 110.

First, the base plate 110 is provided in a substantially vertical plate shape extending along the transport direction of the secondary battery 1 .

At this time, as shown in the base plate 110, the first and second unwinding shafts 120a and 120b, the tape auto changer 130, the tape tension maintaining means 150, the tape take-up means 160, and the tape cutting means (180) are installed.

Here, the transfer direction of the secondary battery 1 means a direction in which the secondary battery 1 is transferred from upstream equipment to the tape bonding unit 300 via the tape bonding unit 200.

On the other hand, the upper side of the base plate 110 is spaced apart from the tape attachment unit 200.

To this end, the base plate 110 is installed on the subframe 20 extending from the bed 10 on which the tape contact unit 200 and the tape contact unit 300 are installed to the upper side of the bed 10.

In addition, the secondary battery 1 to which the tape cut pieces P1, P2, and P3 are attached to the folding surface 8 is transferred to the lower side of the rear surface of the base plate 110. At this time, the folding surface 8 of the secondary battery 1 ) is transferred so as to be parallel to the transfer direction of the secondary battery 1.

The first and second unwinding shafts 120a and 120b are first and second bobbins B1 and B2 in which first and second tapes T1 and T2 having an adhesive layer formed on the back thereof are wound in a roll form, respectively. and selectively unwinds the first or second tapes T1 and T2.

The first and second unwinding shafts 120a and 120b are formed to cross perpendicularly to the transport direction of the secondary battery 1 when viewed from a plan view, and the first and second unwinding shafts 120a and 120b are provided with a base plate ( 110) is freely rotatably installed on the upper and lower sides of one side of the front side.

At this time, the hollow parts of the first and second bobbins B1 and B2 are inserted into the outer peripheral surfaces of the first and second unwinding shafts 120a and 120b protruding from the front of the base plate 110, respectively. and the second unwinding shafts 120a and 120b pressurize the hollow portions of the inserted first and second bobbins B1 and B2 to hold the first and second bobbins B1 and B2.

The first and second bobbins B1 and B2 held by the first and second unwinding shafts 120a and 120b thus formed are selectively operated by a tape tension maintaining unit 150 or a tape take-up unit 160 to be described later. The first or second tapes T1 and T2 are unwound toward the tape auto changer 130, and the first and second tapes T1 and T2 are unwound so that the back surface on which the adhesive layer is formed faces the lower side.

Here, when the first tape T1 is unwound from the first bobbin B1 held by the first unwinding shaft 120a, the second tape T2 of the second bobbin B2 held by the second unwinding shaft 120b ) is not unloaded and waits for unwinding.

Conversely, when the second tape T2 is unwound from the second bobbin B2 held by the second unwinding shaft 120b, the first tape T1 of the first bobbin B1 held by the first unwinding shaft 120a ) is not unloaded and waits for unwinding.

Preferably, the first and second unwinding shafts 120a and 120b may be provided as a normal air shaft or a normal air chuck, and may be provided as a normal air shaft or a normal air chuck. Since the configuration and operation of the provided first and second unwinding shafts 120a and 120b are known technologies, a detailed description thereof will be omitted.

On the other hand, on the rear surface of the base plate 110 facing the fixed end side of the first and second unwinding shafts 120a and 120b, the first and second unwinding shafts 120a and 120b are connected, respectively. First and second tension controllers 122a and 122b for automatically controlling the tension of the first and second tapes T1 and T2 unwound from the bobbins B1 and B2 are connected.

Here, the first and second tension controllers 122a and 122b may be a normal powder brake or a normal powder clutch, and the first and second tension provided by the powder brake or the powder clutch Since the configuration and operation of the controllers 122a and 122b are known technologies, detailed description thereof will be omitted.

As an example, the first and second tension controllers 122a and 122b provided as powder brakes or powder clutches are first and second tapes T1 unwound from first and second bobbins B1 and B2, as can be seen by anyone. , Tape T1 unwound by controlling the rotation of the first and second unwinding shafts 120a and 120b by a current applied based on a signal detected from a tension detector (not shown) that measures the tension of T2, Adjust the tension of T2).

In addition, normal dampers and brakes for controlling rotation of the first and second unwinding shafts 120a and 120b may be installed on the first and second unwinding shafts 120a and 120b.

As shown, the tape auto changer 130 is installed between the first and second unwinding shafts 120a and 120b and the tape tension maintaining means 150, and the tape auto changer 130 The unwinding of the tapes T1 and T2 is continuously unwound without interruption.

That is, when the unwinding of the first tape T1 is completed, the tape auto changer 130 automatically attaches the second tape T2 waiting for unwinding to the first tape T1 so that the second tape T2 is Conversely, when the unwinding of the second tape T2 is completed, the first tape T1 waiting for unwinding is automatically attached to the second tape T2 so that the first tape T1 is unwound.

The tape auto changer 130 individually lifts the first and second lifting operation guide rolls 131a and 131b and the first and second lifting operation guide rolls 131a and 131b. It includes parts 133a and 133b.

The first or second lift operation guide rolls 131a and 131b guide the first and second tapes T1 and T2 in plan view so as to guide the first or second tapes T1 and T2 to be unwound. direction, and the first and second lifting operation guide rolls 131a and 131b face each other in a vertical direction, and the first and second lifting operation parts 133a and 133b of the first and second lifting operation parts 133a and 133b respectively It is installed to be able to rotate freely on the lifting sliders 135a and 135b.

At this time, the first lifting operation guide roll 131a waits for the unwinding of the first tape T1, while adhering the first tape T1 to the second tape T2 to be unwound, the unwinding of the first tape T1 is performed. Arranged on the front side of the base plate 110 so as to be able to guide, similarly, the second lifting operation guide roll 131b waits for the unwinding of the second tape T2, and the first tape to which the second tape T2 is unwound. (T1) It is disposed on the front side of the base plate 110 so as to guide the attachment and unwinding of the second tape T2.

Here, the first tape T1 is attached to the first lifting operation guide roll 131a on the back side on which the adhesive layer is formed and waits for unwinding, and similarly, the second tape T2 has the back side on which the adhesive layer is formed on the second lifting operation guide roll It is attached to 131b and unwinding is awaited. And, the surface of the first tape T1 is guided over the radially lower side of the first lifting operation guide roll 131a, and the second tape T2 has the lower side radially upper side of the second lifting operation guide roll 131b. are guided throughout.

Meanwhile, between the first lifting operation guide roll 131a and the first unwinding shaft 120a, a first tape T1 unwound from the first bobbin B1 is guided toward the first lifting operation guide roll 131a. One unwinding guide roll 132a is disposed, and similarly, the second tape T2 unwound from the second bobbin B2 is fed between the second lifting operation guide roll 131b and the second unwinding shaft 120b. A second unwinding guide roll 132b for guiding to the side of the lifting operation guide roll 131b is disposed.

The first and second unwinding guide rolls 132a and 132b are flat so as to guide the unwound first or second tapes T1 and T2 like the first and second lifting operation guide rolls 131a and 131b. When viewed from above, the first and second unwinding guide rolls 132a and 132b are free to rotate on the front surface of the base plate 110 while being perpendicularly crossed with the guide directions of the first and second tapes T1 and T2. can be installed

At this time, the rear side of the first tape T1 is overlaid on the radially upper side of the first unwinding guide roll 132a and guided to the side of the first lifting operation guide roll 131a, and the radially lower side of the second unwinding guide roll 132b. On the side, the surface side of the second tape T2 is spanned and guided to the side of the second lifting operation guide roll 131b.

That is, the first tape T1 unwound from the first bobbin B1 held by the first unwinding shaft 120a passes through the first unwinding guide roll 132a and is guided toward the first lifting operation guide roll 131a. Similarly, the second tape T2 unwound from the second bobbin B2 held by the second unwinding shaft 120b passes through the second unwinding guide roll 132b and is guided to the side of the second lifting operation guide roll 131b. .

The first and second lift operation parts 133a and 133b are first and second lift cylinders 134a and 134b and first and second lift cylinders 134a and 134b, respectively. and second lifting sliders 135a and 135b.

As shown, the first and second lifting cylinders 134a and 134b are installed facing up and down on the rear surface of the base plate 110, and the first lifting cylinder 134a controls the first lifting slider 135a. 2 It is installed to be lowered to the side of the lifting operation unit 133b or to be raised in the opposite direction to the second lifting operation unit 133b, and the second lifting cylinder 134a moves the second lifting slider 135b to the first lifting operation unit 135b. It is installed so that it can be raised toward the operation part 133a or lowered in a direction opposite to the first lifting operation part 133a.

And, as described above, the first and second lifting actuating guide rolls 131a and 131 are respectively installed on the first and second lifting sliders 135a and 135. In this way, the first and second lifting sliders 135a and 135b The first and second lifting operation guide rolls 131a and 131b installed on the base plate 110 are exposed to the front side of the base plate 110 through the through hole 111 formed in the base plate 110, and the first and second unwinding shafts 120a , 120b).

That is, when the first tape T1 is unwound, the first lifting cylinder 134a lowers the first lifting slider 135a so that the first lifting operation guide roll 131a guides the unwinding of the first tape T1. At this time, the second lifting cylinder 134b lowers the second lifting slider 135b so as not to interfere with the first tape T1 from which the second lifting operation guide roll 131a is unwound.

Conversely, when the second tape T2 is unwound, the second lifting cylinder 134b lifts the second lifting slider 135b so that the second lifting operation guide roll 131b guides the unwinding of the second tape T2. At this time, the first lifting cylinder 134a raises the first lifting slider 135a so as not to interfere with the second tape T2 from which the first lifting operation guide roll 131a is unwound.

And when the unwinding of the first tape (T1) reaches the point where the unwinding of the first tape (T1) is completed, the second elevating cylinder (134b) is waiting for unwinding to the second elevating operation guide roll (131b). The second lifting slider 135b is raised so that the front surface side of T2) adheres to the back surface of the first tape T1. At this time, when the second tape T2 is attached to the first tape T1 by the second lifting operation guide roll 131b and the first lifting operation guide roll 131a, the first lifting cylinder 134a performs the first lifting operation. The guide roll 131a and the first lifting slider 135a are raised and returned in the direction opposite to the second lifting operation part 133b.

Conversely, when the unwinding of the second tape T2 is completed when the unwinding of the second tape T2 is reached, the first lifting cylinder 134a moves the first tape awaiting unwinding to the first lifting operation guide roll 131a. The first lifting slider 135a is lowered so that the back side of T1 is adhered to the surface of the second tape T2. At this time, when the first tape T1 is attached to the second tape T2 by the first lifting operation guide roll 131a and the second lifting operation guide roll 131b, the second lifting cylinder 134b performs the second lifting operation. The guide roll 131b and the second lifting slider 135b are lowered in the opposite direction to the first lifting operation part 133a and returned.

Here, one or more of the first and second lifting operation guide rolls 131a and 131b may be installed on the first and second lifting sliders 135a and 135b, respectively.

Meanwhile, the tape auto changer 130 cuts the first tape T1 entering the first lifting operation guide roll 131a when the second tape T2 waiting to be unwound is attached to the first tape T1 to be unwound. It further includes a first unwinding cutter 136a and a first unwinding cutter operation unit 137a that operates the first unwinding cutter 136a. In addition, the tape auto changer 130 cuts the second tape T2 entering the side of the second lifting operation guide roll 131b when the first tape T1 waiting to be unwound is attached to the second tape T2 to be unwound. A second unwinding cutter 136b and a second unwinding cutter operation unit 137b operating the second unwinding cutter 136b are further included.

The first and second unwinding cutter operation units 137a and 137b are moved by the operation of the first and second unwinding cutter cylinders 138a and 138b and the first and second unwinding cutter cylinders 138a and 138b, respectively. It includes first and second unwinding cutter sliders 139a and 139b.

As shown, the first and second unwinding cutter cylinders 138a and 138b are installed vertically on the front surface of the base plate 110, and the first unwinding cutter cylinder 138a has a first unwinding cutter slider 139a. It is installed so that it can be moved to the side of the first tape T1 passing between the first unwinding guide roll 132a and the first lifting operation guide roll 131a or can be moved in the direction opposite to the first tape T1, and similarly The second unwinding cutter cylinder 138b moves the second unwinding cutter slider 139b to the side of the second tape T2 passing between the second unwinding guide roll 132b and the second lifting operation guide roll 131b or 2 It is installed so that it can move in the opposite direction to the tape (T1).

The first and second unwinding cutters 136a and 136b are provided in the form of a horizontal flat plate having a length greater than the width of the first and second tapes T1 and T2, respectively. Mounted on the tip side of the first unwinding cutter slider 139a facing the first tape T1 to cut the tape T1, and the second unwinding cutter 136b to cut the second tape T2. It is mounted on the front end side of the second unwinding cutter slider 139b facing the second tape T2.

At this time, the tip ends of the first and second unwinding cutters 136a and 136b are formed inclined from one side to the other side when viewed in plan, which means that the first and second unwinding cutters 136a and 136b are the first and second tapes ( T1, T2) to be cut with the same principle as ordinary scissors.

In addition, a saw blade like a normal saw is formed at the tips of the first and second unwinding cutters 136a and 136b along the longitudinal direction of the tips.

That is, the first unwinding cutter 136a is a first unwinding cutter slider (which moves sideways between the first unwinding guide roll 132a and the first lifting operation guide roll 131a by the operation of the first unwinding cutter cylinder 138a) 139a) to cut the first tape T1, and when the cutting of the first tape T1 is completed, the first unwinding cutter 136a operates the first unwinding cutter cylinder 138a to cut the first tape T1. It returns while moving along the first unwinding cutter slider 139a moving away from 1 tape T1.

Similarly, the second unwinding cutter 136b is a second unwinding cutter slider (which moves sideways between the second unwinding guide roll 132b and the second lifting operation guide roll 131b by the operation of the second unwinding cutter cylinder 138b) 139b) to cut the second tape T2, and when the cutting of the second tape T2 is completed, the second unwinding cutter 136b operates the second unwinding cutter cylinder 138b to cut the second tape T2. It returns while moving along the second unwinding cutter slider 139b moving away from the two tapes T1.

On the other hand, the first and second unwinding cutter operating units 137a and 137b are first and second unwinding cutter safety covers 140a that prevent the tips of the first and second unwinding cutters 136a and 136b from being exposed in normal times, respectively. , 140b).

As shown, the first and second unwinding cutter safety covers 140a and 140b are provided in a vertical plate shape extending along the longitudinal direction of the first and second unwinding cutters 136a and 136b, respectively. At this time, the first and second unwinding cutter safety covers 140a and 140b have slit first and second unwinding cutter entrances 141a and 141b through which the tips of the first and second unwinding cutters 136a and 136b enter and exit. is formed

And the first and second unwinding cutter safety covers 140a and 140b are moved by the operation of the first and second unwinding cutter safety cylinders 142a and 142b, respectively, and the first and second unwinding cutter safety cylinder rods 143a, 143b), the first and second unwinding cutter safety cylinders 142a and 142b do not interfere with the first and second unwinding cutters 136a and 136b, respectively, and the first and second unwinding cutter sliders ( 139a, 139b).

That is, when the first or second unwinding cutters 136a or 136b move along the first or second unwinding cutter sliders 139a or 139b to cut the first or second tapes T1 or T2, the first or second unwinding cutters 139a or 139b are cut. Alternatively, the first or second unwinding cutter safety covers 140a, 140b supported by the second unwinding cutter safety cylinders 142a, 142b also move together with the first or second unwinding cutters 136a, 136b, and the first Alternatively, when the second unwinding cutters 136a and 136b reach the point of cutting the first or second tapes T1 and T2, the first or second unwinding cutter safety cylinders 142a and 142b release the first or second unwinding tapes T1 and T2. The cutter safety cylinder rods 143a, 143b are moved (retracted) away from the first or second tapes T1, T2, whereby the tips of the first or second unwind cutters 136a, 136b The first and second tapes T1 and T2 are cut while being exposed through the second unwinding cutter openings 141a and 142b.

Conversely, when the cutting of the first or second tapes T1 or T2 is completed and the first or second unwinding cutters 136a or 136b move away from the first or second tapes T1 or T2, the first or second unwinding cutters 136a or 136b move away from the first or second tapes T1 or T2. Alternatively, the first or second unwinding cutter safety covers 140a or 140b supported by the second unwinding cutter safety cylinders 142a or 142b are also moved together with the first or second unwinding cutters 136a or 136b. Alternatively, the second unwinding cutter safety cylinders 142a and 142b move (advance) the first or second unwinding cutter safety cylinder rods 143a and 143b toward the cut first or second tapes T1 and T2 to move (advance) the first or second unwinding cutter safety cylinder rods 143a and 143b to the first or second unwinding tapes T1 and T2. The tips of the second unwinding cutters 136a and 136b are inserted into the first or second unwinding cutter openings 141a and 141b.

The first or second unwinding cutter safety covers 140a and 140b formed in this way are ready to unwind the first or second tapes T1 and T2 to the first or second lifting operation guide rolls 131a and 131b, respectively. The operator's hands are not allowed to contact the tips of the first or second unwinding cutters 136a and 136b.

In the above, the tape auto changer 130 attaching the first or second tapes T1 or T2 waiting for unwinding at the time when the unwinding of the first or second tapes T1 or T2 is completed has been described, but the tape auto changer 130 has been described. Anyone can know that the changer 130 can quickly attach the waiting first or second tapes T1 or T2 when a defective section of the unwound first and second tapes T1 or T2 occurs. There will be.

The tape tension maintaining means 150 is installed to face the first and second unwinding shafts 120a and 120b with the tape auto changer 130 interposed therebetween. ) so that the first or second tapes T1 and T2 pulled to a predetermined length are maintained in a tense state.

The tape tension maintaining means 150 includes a dancer roll 151 and third and fourth unwinding guide rolls 153a and 153b installed on both sides of the dancer roll 151 .

The dancer roll 151 crosses at right angles to the guiding directions of the first and second tapes T1 and T2 when viewed from a plane so as to maintain tension while guiding the first or second tapes T1 and T2. While being formed, it is disposed on the front surface of the base plate 110 so as to be able to move up and down along the vertical elevating long hole 112 formed in the base plate 110 .

The surface side of the first or second tapes T1 or T2 is guided to the radially lower side of the dancer roll 151 arranged in this way, and excessive tension acts on the first or second tapes T1 or T2 to prevent When the first or second tapes T1 or T2 are taut, the dancer roll 151 rises along the elevating long hole 112 while maintaining the tensioned state of the first or second tapes T1 or T2.

Conversely, when the first or second tapes T1 or T2 are loosened, the dancer roll 151 can maintain the tensioned state of the first or second tapes T1 or T2 while descending along the elevating slot 112. let it be

On the other hand, the dancer roll 151 is supported by being freely rotatably installed on the lifting block 152 disposed on the rear surface of the base plate 110 through the lifting long hole 112, and the lifting block 152 is a dancer roll ( 151) is slidably mounted on an elevating rail 159 extending along the vertical longitudinal direction of the base plate 110 while being installed on the rear surface of the base plate 110 so that the elevating long hole 112 can be moved up and down. do.

The third and fourth unwinding guide rolls 153a and 153b are configured to guide the first and second tapes T1 and T2 with respect to the guide direction of the first and second tapes T1 and T2 in plan view. formed by crossing vertically.

At this time, the third and fourth unwinding guide rolls 153a and 153b face each other from side to side with the dancer roll 151 interposed therebetween as described above, and the front surface of the base plate 110 adjacent to the upper end of the elevating long hole 112. It is installed so that it can rotate freely on the top.

The rear surfaces of the first or second tapes T1 and T2 are guided over the radial upper side of the third and fourth unwinding guide rolls 153a and 153b thus installed.

That is, the first or second tapes T1 and T2 guided by the tape auto changer 130 sequentially pass through the third unwinding guide roll 153a, the dancer roll 151 and the fourth unwinding guide roll 153b, are guided

On the other hand, the tape tension maintaining means 150 reverses the front and back surfaces of the first or second tapes T1 and T2 guided through the fourth unwinding guide roll 153b so that they are guided toward the tape take-up means 160. A direction turning guide roll 154 is further included.

The direction changing guide roll 154 is capable of guiding the first or second tapes T1 and T2 like the third and fourth unwinding guide rolls 153a and 153b, as viewed in plan, the first and second tapes ( T1, T2) is formed to cross vertically with respect to the guide direction.

At this time, the direction change guide roll 154 is freely rotatably installed on the front surface of the base plate 110 so as to be disposed on the lower side of the fourth unwinding guide roll 153b, and is radially lower than the direction change guide roll 154. On the side, the back side of the first or second tapes T1 and T2 guided through the fourth unwinding guide roll 153b is spanned and guided. Accordingly, the first or second tapes T1 and T2 are guided toward the tape take-up means 160 horizontally with the transport direction of the secondary battery 1 while the front and back surfaces are reversed.

Meanwhile, the tape tension maintaining unit 150 further includes a pressure operation unit 155 preventing the dancer roll 151 from rising when the tape auto changer 130 operates.

The pressure operation unit 155 extends vertically along the longitudinal direction of the pressure servomotor 156 installed on the rear surface of the base plate 110 adjacent to the upper end of the elevating slot 112 and the elevating slot 112, Includes a pressure screw shaft 157 whose upper side is connected to the output end of the pressure servo motor 156 and a pressure block 158 fastened to the pressure screw shaft 157 and operating up and down by the operation of the pressure screw shaft 157 do.

At this time, the pressing block 158 is disposed on the upper side of the lifting block 152 so as to press the lifting block 152, and the pressing block 158 is a lifting rail 159 together with the lifting block 152 so that it can move in a straight line. ) to be slidably mounted.

That is, when the second tape T2 is attached to the first tape T1 to be unwound or when the first tape T1 is attached to the second tape T2 to be unwound, the first or second unwinding shafts 120a and 120b are The rotation is stopped by the operation of the damper and the brake, and the pressure servomotor 156 rotates the pressure screw shaft 157 so that the pressure block 158 descends, whereby the pressure block 158 rotates the pressure screw shaft 157 While descending along, it contacts the lifting block 152 to prevent the lifting block 152 from rising, and the first tape T1 or the second tape T2 to be cut maintains tension.

Conversely, when the second tape T2 is attached to the first tape T1 or when the first tape T1 is attached to the unwound second tape T2, the pressure servomotor 156 moves the pressure block 158 to The pressure screw shaft 157 is rotated so as to rise. At this time, the pressure block 158 rises along the pressure screw shaft 157 to the upper end of the elevating long hole 112, whereby the lifting block 152 and the dancer roll ( 151) moves up and down along the elevating long hole 112.

On the other hand, a plurality of guide rolls for guiding the supply of the first or second tapes T1 and T2 to be unwound, that is, the first to fourth unwinding guide rolls 132a, 132b, 153a and 153b, the direction changing guide roll 154 ), the first and second lifting operation guide rolls 131a and 131b are installed so as to be able to prevent deflection of the free end side.

To this end, the shaft S exposed to both ends of the guide rolls 132a, 132b, 153a, 153b, 154, 131a, and 131b is connected to the bearing bracket 191 at the fixed end and free, respectively, via bearings (not shown). It is rotatably supported by the single-side bearing bracket 192.

In addition, the fixed end side bearing bracket 191 and the free end side bearing bracket 192 are connected by a connecting bar 193 so as not to interfere with the rotation of the guide rolls 132a, 132b, 153a, 153b, 154, 131a, 131b. do.

At this time, the bearing bracket 191 on the fixed end side is provided thicker than the bearing bracket 192 on the free end side so as to impart rigidity, and the connecting bar 193 guides the rolls 132a, 132b, 153a, 153b, 154, and 131a , 131b) to minimize the interference of the first or second tapes T1, T2, that is, the risk of adhesion of the first and second tapes T1, T2, guide rolls 132a, 132b, 153a, 153b, 154, 131a, 131b) is formed to have a thickness smaller than the thickness (diameter).

And the guide rolls 132a, 132b, 153a, 153b, 154, 131a, 131b are formed to have a length longer than the width of the first or second tapes T1 and T2, and the guide rolls 132a, 132b, 153a, On the surface of 153b, 154, 131a, 131b, when the first or second tapes (T1, T2) are guided, the slip and the adhesive layer of the first or second tapes (T1, T2) are knurled (knurling) to prevent sticking, and at the same time hydrophobic (Hydrophobic) properties of fluororesin are coated. Here, the fluororesin may be normal Teflon.

The tape take-up unit 160 is installed to extend from the lower side of the base plate 110 adjacent to the tape tension maintaining unit 150 along the horizontal longitudinal direction of the base plate 110, that is, along the transport direction of the secondary battery 1. do.

The tape take-up means 160 is guided by the tape tension maintaining means 150 so that the tape cutting pieces P1, P2, P3 are formed by the tape cutting means 180, the first or second tapes T1, T2 ) can be intermittently taken out by a predetermined length along the transport direction of the secondary battery 1.

The tape take-up unit 160 includes a tape clamp 161 for selectively gripping the first or second tapes T1 and T2 guided by the tape tension maintaining unit 150, and a tape clamp 161 gripped by the tape clamp 161. and a tape transfer 168 that grips and pulls the extended ends of the first or second tapes T1 and T2 to a predetermined length.

The tape clamp 161 includes a movable clamp block 162 holding the first or second tapes T1 and T2, a clamp lifting cylinder 164 for lifting and moving the fixed clamp block 163 and the movable clamp block 162. includes

The movable clamp block 162 and the fixed clamp block 163 extend in the width direction of the first and second tapes T1 and T2, and the first or second tape ( It is disposed on the front surface of the base plate 110 adjacent to the direction changing guide roll 154 so that the front and back surfaces of T1 and T2 can be pressed and gripped.

The clamp elevating cylinder 164 is disposed on the front surface of the base plate 110 adjacent to the direction changing guide roll 154, as are the movable clamp block 162 and the fixed clamp block 163.

At this time, a clamp lifting slider 165 that moves up and down by the operation of the clamp lifting cylinder 164 is mounted on the clamp lifting cylinder 164. As shown in the clamp lifting slider 165, the movable clamp block 162 is is fitted

That is, the first or second tapes T1 and T2 guided from the side of the direction changing guide roll 154 are guided between the movable clamp block 162 and the fixed clamp block 163, and fixed to the movable clamp block 162. A portion adjacent to the extended ends of the first or second tapes T1 and T2 guided between the clamp blocks 163 includes a movable clamp block 162 and a fixed clamp block 163 which move up and down by the operation of the clamp lift cylinder 164. ) by which phage or phage is released.

On the other hand, the fixed clamp block 163 and the clamp lifting cylinder 164 disposed on the front side of the base plate 110 are mounted on the front side of the clamp guide block 166 and are disposed on the front side of the base plate 110 .

And the rear side of the clamp guide block 166 is installed on the lower side of the rear surface of the base plate 110 and extends along the horizontal longitudinal direction of the base plate 110, that is, the transport direction of the secondary battery 1. Take-up rail ( 167) is slidably mounted on it. At this time, the positions of the movable clamp block 162, the fixed clamp block 163, and the clamp elevating cylinder 164 are adjusted by the clamp guide block 166 guided along the take-up rail 167.

Here, the front and rear surfaces of the clamp guide block 166 are formed on the lower side of the base plate 110 and extend horizontally along the horizontal longitudinal direction of the base plate 110, that is, along the transport direction of the secondary battery 1. They are connected to each other through the take-off hole 113.

That is, the positions of the movable clamp block 162, the fixed clamp block 163, and the clamp elevating cylinder 164 are adjusted by the clamp guide block 166 guided along the take-up rail 167, and the position adjustment is completed. The clamp guide block 166 is fixed to the take-up rail 167 via a common bolt or the like.

The tape transfer 168 includes a movable gripper block 169 that grips the extended ends of the first or second tapes T1 and T2 gripped by the tape clamp 161, a fixed gripper block 170, and a movable gripper block 169. ) includes a gripper lifting cylinder 171 that lifts and operates.

In addition, the tape transfer 168 moves the gripper guide block 173 on which the movable gripper block 169, the fixed gripper block 170, and the gripper elevating cylinder 171 are mounted along the longitudinal direction of the take-up hole 113. A take-in servomotor 174 is further included.

The movable gripper block 169 and the fixed gripper block 170 extend in the width direction of the first or second tapes T1 and T2, and are gripped by the movable clamp block 162 and the fixed clamp block 163. Alternatively, the second tapes T1 and T2 are disposed on the front surface of the base plate 110 so that the back and the surface of the extension ends can be gripped by pressing.

The gripper lifting cylinder 171 is disposed on the front surface of the base plate 110 like the movable gripper block 169 and the fixed gripper block 170 . At this time, a gripper lifting slider 172 that moves up and down by the operation of the gripper lifting cylinder 171 is mounted on the gripper lifting cylinder 171, and a movable gripper block 169 is mounted on the gripper lifting slider 172.

That is, the extended ends of the first or second tapes T1 and T2 held by the movable clamp block 162 and the fixed clamp block 163 are exposed toward the tape transfer 168, in this way the movable clamp block 162 and The extended ends of the first or second tapes T1 and T2 gripped by the fixed clamp block 163 are a movable gripper block 169 and a fixed gripper block 170 that move up and down by the operation of the gripper lift cylinder 171. The phage or the phage is released by

Meanwhile, the fixed gripper block 170 and the gripper elevating cylinder 171 disposed on the front side of the base plate 110 are mounted on the front side of the gripper guide block 173 and are disposed on the front side of the base plate 110. .

Also, the rear side of the gripper guide block 173 is connected to the front side of the gripper guide block 173 through the take-out long hole 113, like the clamp guide block 166, and the rear side of the gripper guide block 173 is connected to the take-up rail 167. ) is slidably mounted on it.

As shown, the take-out servomotor 174 is installed on the rear surface of the base plate 110, and the take-off screw shaft extends horizontally along the longitudinal direction of the take-out long hole 113 at the output end of the take-off servomotor 174 ( 175) is installed.

At this time, the rear side of the gripper guide block 173 is fastened to the take-out screw shaft 175.

That is, when the first or second tapes T1 and T2 gripped by the movable clamp block 162 and the fixed clamp block 163 are taken up, the movable gripper block 169 and the fixed gripper block 170 move the movable clamp block 162 ) And the gripper guide block ( 173) to the side of the tape clamp 161.

Further, when the movable gripper block 169 and the fixed gripper block 170 grip the extended ends of the first or second tapes T1 and T2 gripped by the movable clamp block 162 and the fixed clamp block 163, the movable The clamp block 162 and the fixing clamp block 163 release gripping of the first or second tapes T1 and T2, and at the same time, the take-out servomotor 174 rotates the take-out screw shaft 175 to grip the gripper. The guide block 173 is moved away from the tape clamp 161, that is, the first or second tapes T1 and T2 are drawn at a preset length.

Preferably, the first and second tapes T1 and T2 are gripped on the gripping surface of the fixed clamp block 163 and the gripper block 170 gripping the surface side of the first or second tapes T1 and T2. ) A urethane coating layer is formed so as to be able to grip elastically.

Preferably, the gripping surfaces of the movable clamp block 162 and the movable gripper block 169 gripping the back side of the first or second tapes T1 and T2 on which the adhesive layer is formed are knurled so that the adhesive layer does not adhere. At the same time, a fluororesin having hydrophobic properties is coated. Here, the fluororesin may be normal Teflon.

More preferably, on the gripping surfaces of the movable clamp block 162 and the movable gripper block 169, pyramids are movable and arranged so as to protrude to form a plurality of rows and columns (see FIGS. 12 and 13), but the vertex side of the pyramids It may be formed into a flat or curved surface, and the surfaces of the pyramids may be coated with fluororesin, that is, normal Teflon.

The tape cutting means 180 is installed on the upper side of the tape take-up means 160, and the tape cutting means 180 cuts the first or second tapes T1 and T2 taken by the tape take-up means 160. It is cut into a plurality of tape cut pieces (P1, P2, P3).

The tape cutting unit 180 operates the first, second and third cutting piece cutters 181a, 181b and 181c and the first, second and third cutting piece cutters 181a, 181b and 181c, respectively. 1, 2nd and 3rd cutting piece cutter operating parts 182a, 182b and 182c are included.

The first, second, and third cutting piece cutter operating portions 182a, 182b, and 182c respectively include the first, second, and third cutting piece cutter cylinders 183a, 183b, and 183c, and the first, second, and third cutting piece cutter cylinders 183a, 183b, and 183c. and the first, second and third cutting piece cutter sliders 184a, 184b and 184c moved by the operation of the three cutting piece cutter cylinders 183a, 183b and 183c.

At this time, the first, second, and third cutting piece cutter cylinders 183a, 183b, and 183c are installed on the front surface of the base plate 110 adjacent to the upper side of the take-out long hole 113 as shown, and the take-out long hole ( 113), the first, second and third cutting piece cutter cylinders 183a, 183b and 183c are slidably mounted on the cutting piece rail 185 extending horizontally along the lengthwise direction of the cutting piece rail 185 It is fixedly installed at a distance along the

And the first, second, and third cutting piece cutter cylinders 183a, 183b, and 183c take the first, second, and third cutting piece cutter sliders 184a, 184b, and 184c along the take-out long hole 113, respectively. Installed to be moved downward toward the first or second tape T1 or T2, or upwardly moved in a direction opposite to the first or second tape T1 or T2 taken along the take-out long hole 113 do.

That is, the first, second and third cutting piece cutter cylinders 183a, 183b and 183c are guided along the cutting piece rail 185 and their positions are adjusted, and the position adjustment is completed in the first, second and third The cutting piece cutter cylinders 183a, 183b, and 183c are fixed to the cutting piece rail 185 via a common bolt or the like.

The first, second, and third cutting piece cutters 181a, 181b, and 181c are provided in the form of vertical plates having a wider width than the widths of the first and second tapes T1 and T2, respectively. The second and third cutting-piece cutters 181a, 181b, and 181c are respectively first, second, and third cutting-piece cutter sliders 184a, 184b, and 184c to cut the first or second tapes T1 and T2. ) is mounted on the tip side of the

At this time, the tips of the first, second, and third cutting piece cutters 181a, 181b, and 181c are inclined from one side to the other when viewed from the side, which means that the first, second, and third cutting piece cutters 181a, This is to enable 181b and 181c) to cut the first or second tapes T1 and T2 in the same principle as ordinary scissors.

In addition, saw blades like a conventional saw are formed at the tips of the first, second, and third cutting piece cutters 181a, 181b, and 181c along the longitudinal direction of the tips.

That is, the first, second, and third cutting piece cutters 181a, 181b, and 181c are operated by the first, second, and third cutting piece cutter cylinders 183a, 183b, and 183c to form the tape take-up unit 160. While moving along the first, second and third cutting piece cutter sliders 184a, 184b and 184c moving to the side of the first or second tapes T1 and T2 taken by the first or second tapes T1, T2) is cut to form tape cut pieces (P1, P2, P3), and when the first or second tape (T1, T2) is cut to form tape cut pieces (P1, P2, P3), The first, second, and third cutting piece cutters 181a, 181b, and 181c are operated by the first, second, and third cutting piece cutter cylinders 183a, 183b, and 183c to cut the tape pieces P1. P2. It returns while moving along the first, second and third cutting piece cutter sliders 184a, 184b and 184c moving away from P3).

Here, the surface side of the first and second tapes T1 and T2 taken by the tape take-up unit 160 is installed on the lower side of the base plate 110, and the suction plate of the tape attachment unit 200 (not shown) ) and cut by the first, second and third cutting piece cutters 181a, 181b and 181c.

And, when the first or second tapes T1 or T2 are gripped by the movable clamp block 162 or the fixed clamp block 163, the first cutting piece cutter 181a cuts the first or second tapes T1 or T2. The extended end is spaced apart from the movable clamp block 162 and the fixed clamp block 163 so that it can be exposed toward the tape transfer 168 side.

On the other hand, the first, second, and third cutting piece cutter operation units 182a, 182b, and 182c are configured to prevent the tips of the first, second, and third cutting piece cutters 181a, 181b, and 181c from being exposed in normal times. It further includes first, second and third cutting piece cutter safety covers (186a, 186b, 186c).

The first, second, and third cutting piece cutter safety covers 186a, 186b, and 186c extend along the longitudinal direction of the first, second, and third cutting piece cutters 181a, 181b, and 181c, respectively, as shown. It is provided in the shape of a horizontal plate. At this time, the first, second, and third cutting piece cutter safety covers 186a, 186b, and 186c have a first slit through which the tips of the first, second, and third cutting piece cutters 181a, 181b, and 181c enter and exit. , second and third cutting piece cutter openings 187a, 187b and 187c are formed.

And the first, second, and third cutting piece cutter safety covers 186a, 186b, and 186c are first moved by the operation of the first, second, and second unwinding cutter safety cylinders 188a, 188b, and 188c, respectively. , It is supported on the extended ends of the second and third cutting piece cutter safety cylinder rods 189a, 189b, and 189c, wherein the first, second, and third cutting piece cutter safety cylinders 188a, 188b, and 188c are , are mounted on the first, second, and third cutting-piece cutter sliders 184a, 184b, and 184c, respectively, so as not to interfere with the second and third cutting-piece cutters 181a, 181b, and 181c.

That is, the first, second, and third cutting piece cutters 181a, 181b, and 181c are the first or second tapes wound along the first, second, and third cutting piece cutter sliders 184a, 184b, and 184c. When moving for cutting (T1, T2), the first, second and third cutting piece cutter safety covers 186a supported by the first, second and third cutting piece cutter safety cylinders 188a, 188b and 188c. , 186b, 186c) also moves together with the first, second and third cutting piece cutters 181a, 181b and 181c, and the first, second and third cutting piece cutters 181a, 181b and 181c take up. When the first or second tapes T1 or T2 are cut, the first, second, and third cutting piece cutter safety cylinders 188a, 188b, and 188c are first, second, and third cutting pieces. The cutter safety cylinder rods 189a, 189b, and 189c are moved (retracted) away from the first or second tapes T1 and T2 taken off, whereby the first, second, and third cutting piece cutters 181a, The tip ends of the first, second, and third cutting pieces 181b and 181c are exposed through the first, second, and third cutting piece cutter entrances 187a, 187b, and 187c and cut the first or second tapes T1 and T2 to cut the tape cutting pieces ( P1, P2, P3) are formed.

Conversely, the first or second tapes T1 and T2 are cut to form tape cutting pieces P1, P2 and P3, and the first, second and third cutting piece cutters 181a, 181b and 181c cut the tape. Moving away from the pieces P1, P2, P3, the first, second and third cutting piece cutter safety covers supported on the first, second and third unwinding cutter safety cylinders 188a, 188b and 188c (186a, 186b, 186c) are also moved together with the first, second and third cutting piece cutters 181a, 181b and 181c, wherein the first, second and third cutting piece cutter safety cylinders 188a, 188b, 188c) moves (advances) the first, second, and third unwinding cutter safety cylinder rods 189a, 189b, and 189c toward the cut tape pieces P1, P2, and P3 to first, second, and third unwinding cutters. The tips of the three cutting piece cutters 181a, 181b and 181c are inserted into the first, second and third cutting piece cutter openings 187a, 187b and 187c.

On the other hand, the tape cut pieces (P1, P2, P3) adsorbed to the adsorption plates (not shown) of the contact unit 200 are attached to the folding surface 8 of the secondary battery 1 by the operation of the contact unit 200. The secondary battery 1, to which the tape cut pieces P1, P2, and P3 are welded, moves to the side of the complete unit 300, which is welded to the folding surface 8 of the secondary battery 1. The upper and lower sides of P1, P2 and P3 are completely attached to the upper and lower sides of the secondary battery 1 by the operation of the complete unit 300.

The tape supply unit for the pouch-type secondary battery taping device according to the present invention formed as described above is a first or second bobbin (B1, B2) wound along the longitudinal direction of the folding surface (8) formed on the secondary battery (1). Tape supply unit since the first or second tape is unwound and the unwound first or second tape (T1, T2) is cut into a plurality to form tape cut pieces (P1, P2) attached to the folding surface (8). can be configured simply, thereby facilitating the manufacture and maintenance of the tape supply unit.

In addition, the tape supply unit for a pouch-type secondary battery taping device according to the present invention continuously unwinds the first and second tapes T1 and T2 wound around the first or second bobbins B1 and B2 without interruption. to be recommended

Claims (12)

In the tape supply unit for a pouch-type secondary battery taping device that unwinds and supplies a first or second tape having an adhesive layer formed on the back side,
The tape supply unit,
first and second unwinding shafts holding first and second bobbins on which the first and second tapes are wound in a roll form, respectively;
a tape auto changer for attaching the first or second tape waiting to be unwound to the first or second tape to be unwound;
a tape take-up means for pulling the first or second tape intermittently by a predetermined length along the transport direction of the secondary battery;
A tape tension maintaining means installed to face the first and second unwinding shafts with the tape auto changer interposed therebetween, to keep the first or second tape taken up by the tape take-up means in a taut state. ; and
A tape supply unit for a pouch-type secondary battery taping device comprising: a tape cutting unit for cutting the first or second tape taken up by the tape take-up unit into a plurality of cut tape pieces.
delete The method of claim 1,
The tape auto changer,
a first elevating operation guide roll that waits for unwinding of the first tape and adheres the back side of the first tape to the surface of the second tape to be unwound; and
A second lifting operation guide roll waiting for unwinding of the second tape and attaching the surface of the second tape to the back surface of the first tape to be unwound;
The tape supply unit for a pouch-type secondary battery taping device wherein the first lifting operation guide roll and the second lifting operation guide roll face each other vertically.
The method of claim 3,
The first tape is attached to the first lifting operation guide roll and waiting for unwinding, and the second tape is attached to the second lifting operation guide roll and is waiting for unwinding. Tape supply for pouch-type secondary battery taping device unit.
The method of claim 3,
The tape auto changer,
When the first tape waiting to be unwound is attached to the second tape to be unwound, the first lifting operation guide roll is lowered toward the second lifting operation guide roll, and when the second tape is attached to the first tape to be unwound, the first lifting operation guide roll is lowered toward the second lifting operation guide roll. a first lifting operation unit that lifts the first lifting operation guide roll away from the second lifting operation guide roll; and
When the second tape waiting to be unwound is attached to the first tape to be unwound, the second lifting operation guide roll is raised toward the first lifting operation guide roll, and when the first tape is attached to the second tape to be unwound, the second lifting operation guide roll is raised toward the first lifting operation guide roll. A tape supply unit for a pouch-type secondary battery taping device, further comprising: a second lifting operation unit for lowering the second lifting operation guide roll away from the first lifting operation guide roll.
The method of claim 5,
The first lifting operation unit,
a first lifting cylinder; and
A first lifting slider configured to move up and down by the operation of the first lift cylinder;
The second lifting operation unit,
a second lifting cylinder; and
A second lifting slider that moves up and down by the operation of the second lifting cylinder;
A tape supply unit for a pouch-type secondary battery taping device, wherein the first lifting operation guide roll is installed on the first lifting slider, and the second lifting operation guide roll is installed on the second lifting slider.
The method of claim 3,
The tape auto changer,
a first unwinding cutter which cuts the first tape entering the first lifting operation guide roll side when the second tape waiting to be unwound is attached to the first tape to be unwound;
a first unwinding cutter operation unit moving the first unwinding cutter to cut the first tape;
a second unwinding cutter which cuts the second tape entering toward the second lifting operation guide roll when attaching the first tape waiting to be unwound to the second tape to be unwound; and
A tape supply unit for a pouch-type secondary battery taping device further comprising a second unwinding cutter operation unit for moving the second unwinding cutter so that the second tape is cut.
The method of claim 7,
The first and second unwinding cutters are provided in the form of a flat plate having a length longer than the width of the first and second tapes, respectively.
The tips of the first and second unwinding cutters are inclined from one side to the other side when viewed in plan,
A tape supply unit for a pouch-type secondary battery taping device in which saw blades are formed at the tips of the first and second unwinding cutters.
The method of claim 7,
The first unwinding cutter operation unit,
a first unwinding cutter cylinder; and
A first unwinding cutter slider moved by the operation of the first unwinding cutter cylinder;
The second unwinding cutter operation unit,
a second unwinding cutter cylinder; and
A second unwinding cutter slider moved by the operation of the second unwinding cutter cylinder;
The first unwinding cutter is mounted on the first unwinding cutter slider, and the second unwinding cutter is mounted on the second unwinding cutter slider.
The method of claim 9,
The first unwinding cutter operation unit,
A first unwinding cutter safety cover that prevents the tip of the first unwinding cutter from being exposed in normal times and exposes the tip of the first unwinding cutter when the first tape is cut.
The second unwinding cutter operation unit,
A tape for a pouch-type secondary battery taping device further comprising a second unwinding cutter safety cover that prevents the tip of the second unwinding cutter from being exposed during normal times and exposes the tip of the second unwinding cutter when the second tape is cut. supply unit.
The method of claim 10,
The first and second unwinding cutter safety covers are provided in a plate shape having first and second unwinding cutter entrances through which tips of the first and second unwinding cutters enter and exit,
The first and second unwinding cutter safety covers are supported on the extension ends of the first and second unwinding cutter safety cylinder rods of the first and second unwinding cutter safety cylinders mounted on the first and second unwinding cutter sliders, respectively. Tape supply unit for pouch type secondary battery taping device.
The method of claim 1,
The first and second unwinding shafts, the tape auto changer, the tape take-up means, the tape tension maintaining means, and the tape cutting means are installed on a base plate, and a tape supply unit for a pouch-type secondary battery taping device.

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