KR20220126858A - Tape feeding unit for pouch type secondaty battery taping device - Google Patents

Abstract

Disclosed is a tape feeding unit for a pouch-type secondary battery taping device, which unwinds and supplies a tape having an adhesive layer formed on a back surface thereof. According to the present invention, the tape feeding unit comprises a tape take-up means for taking an unwound tape by a predetermined length along the transport direction of a secondary battery. The tape take-up means includes: a tape clamp having a movable clamp block and a fixed clamp block that hold the tape supplied after being unwound and release the holding of the tape when the tape is pulled; and a tape transferer having a movable gripper block and a fixed gripper block that hold an extended end of the tape gripped by the tape clamp and pull the gripped tape for the same to be taken up by a predetermined length.

Description

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 the secondary battery is not restored to the state before folding, and more particularly, it is attached to the folded edge of the secondary battery It relates to a tape supply unit for a pouch-type secondary battery taping device for supplying the tape to be used.

Herein, background information related to the present invention is provided, which does not necessarily imply prior art (This section provides background information related to the present disclosure which is not necessarily prior art).

In general, the pouch-type secondary battery 1 extends from the electrode assembly 2 , the pouch case 3 accommodating the electrode assembly 2 , and the electrode assembly 2 to the outside as shown in FIG. 1 . and an electrode tab 4 that is

In addition, the pouch case 3 includes a case body 5 that provides a space in which the electrode assembly 2 can be accommodated, and a case cover 6 that covers the case body 5 . In this case, the edges of the case body 5 and the case cover 6 are usually provided by sealing.

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

On the other hand, 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 to correspond to the attachment positions of the tapes 9 .

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

The present invention (Disclosure) makes it possible to unwind the tape wound on the bobbin along the longitudinal direction of the folding surface (refer to FIG. 2) of the secondary battery, so that the unwound tape can be attached to the folding surface while maintaining a certain interval An object of the present invention is to provide a tape supply unit for a pouch-type secondary battery taping device that enables the unwound tape to be cut into a plurality.

Herein, a general summary of the present invention is provided, which should not be construed as limiting the scope of the present invention (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 problems, according to any one aspect (aspect) of various aspects describing the present invention, in the tape supply unit for a pouch-type secondary battery taping device for unwinding and supplying a tape having an adhesive layer formed on the back surface, the tape The supply unit includes a tape take-up means for taking the unwound tape to a predetermined length along the transport direction of the secondary battery; the tape take-up means holds the unwound and supplied tape, and holds the tape when taking the tape. a tape clamp having a movable clamp block and a fixed clamp block to release; and a tape transfer having a movable gripper block and a fixed gripper block for gripping the extended end of the tape gripped by the tape clamp and pulling the gripped tape to a predetermined length.

In the tape supply unit for a pouch-type secondary battery taping device according to an aspect of the present invention, the surface side of the tape is gripped on the gripping surfaces of the fixed clamp block and the fixed gripper block, and the wave of the fixed clamp block and the fixed gripper block is gripped. A urethane coating layer may be formed on the ground.

In the tape supply unit for a pouch-type secondary battery taping device according to an aspect of the present invention, the back side of the tape is gripped on the gripping surface of the movable clamp block and the movable gripper block, and the gripper of the movable clamp block and the movable gripper block The ground may be knurled and coated with fluororesin.

In the tape supply unit for a pouch-type secondary battery taping device according to an aspect of the present invention, the back side of the tape is gripped on the gripping surface of the movable clamp block and the movable gripper block, and the gripper of the movable clamp block and the movable gripper block On the ground, pyramids are processed and arranged to form a plurality of rows and columns, and the vertices of the pyramids may be formed in a flat or curved surface.

In the tape supply unit for a pouch-type secondary battery taping device according to an aspect of the present invention, the surface of the pyramids may be coated with a fluororesin.

In the tape supply unit for a pouch-type secondary battery taping device according to an aspect of the present invention, the fluororesin may be Teflon.

In the tape supply unit for a pouch-type secondary battery taping device according to an aspect of the present invention, the tape clamp includes: a clamp lifting cylinder for lifting and lowering the movable clamp block; further comprising a movable clamp block, a fixed clamp block and The clamp elevating cylinder is mounted on the front side of the clamp guide block, the rear side of the clamp guide block is slidably mounted on a take-up rail extending along the transport direction of the secondary battery, and the rear side of the clamp guide block can be fixed to the take-up rail .

In the tape supply unit for a pouch-type secondary battery taping device according to an aspect of the present invention, the tape transfer includes: a gripper lifting cylinder for lifting and lowering the movable gripper block; and a take-up servomotor for moving the movable gripper block, the fixed gripper block, and the gripper elevating cylinder along the take-up rail, wherein the movable gripper block, the fixed gripper block and the gripper elevating cylinder are mounted on the front of the gripper guide block, and the gripper The rear side of the guide block is slidably mounted on the take-up rail, and the rear surface of the gripper guide block extends along the longitudinal direction of the take-up rail and the take-up screw shaft connected to the output end of the take-up servomotor may be fastened.

In the tape supply unit for a pouch-type secondary battery taping device according to an aspect of the present invention, the tape supply unit is disposed on the upper side of the tape take-up means, and cuts the tape taken by the tape take-up means to cut the secondary battery It further comprises a tape cutting means for forming a tape cut piece attached to the folding surface of the tape cutting means, one or more cut piece cutter for cutting the tape; and a cutting piece cutter operating unit provided to correspond to the cutting piece cutter and moving the cutting piece cutter so that the tape is cut.

In the tape supply unit for a pouch-type secondary battery taping device according to an aspect of the present invention, the cut piece cutter is provided in the form of a flat plate having a length longer than the width of the tape, and the tip of the cut piece cutter is viewed from the side. It is formed to be inclined from one side to the other, and a saw blade may be formed at the tip of the cutting piece cutter.

In the tape supply unit for a pouch-type secondary battery taping device according to an aspect of the present invention, the cutting piece cutter operating part is fixedly installed on the cutting piece rail extending along the transport direction of the secondary battery from the upper side of the tape take-up means. , The cutting piece cutter operating unit, the cutting piece cutter cylinder; and a cut piece cutter slider that moves by the operation of the cut piece cutter cylinder, wherein the cut piece cutter slider may be mounted on the cut piece cutter slider.

In the tape supply unit for a pouch-type secondary battery taping device according to an aspect of the present invention, the cutting piece cutter operating unit prevents the tip of the cutting piece cutter from being exposed in normal times, and the tip of the cutting piece cutter when cutting the tape. It may further include a; cutting piece cutter safety cover to expose.

In the tape supply unit for a pouch-type secondary battery taping device according to an aspect of the present invention, the cutting cutter safety cover is provided in a plate shape in which the cutting piece cutter entrance and exit through which the tip of the cutting piece cutter enters and exits, the cutting piece cutter The safety cover may be supported on the extended end of the cutting piece safety cylinder rod of the cutting piece safety cylinder mounted on the cutting piece cutter slider.

In the tape supply unit for a pouch-type secondary battery taping device according to an aspect of the present invention, the tape taking means and the tape cutting means may be installed on the base plate.

According to the present invention, the tape is unwound along the longitudinal direction of the folding surface formed on the secondary battery, and the unwound tape is cut in large numbers to form cut pieces of the tape attached to the folding surface, so that the tape supply unit can be configured simply. and, thereby, it is possible to provide an effect of facilitating 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 an edge of the pouch-type secondary battery shown in FIG. 1 is folded.
3 is a view showing a pouch-type secondary battery taping device according to the present invention.
Figure 4 is a perspective view of the tape supply unit shown in Figure 3 viewed from the front.
5 is a view looking at the tape supply unit in "A" of FIG.
FIG. 6 is a perspective view of the tape supply unit shown in FIG. 4 as viewed from the rear;
7 is an enlarged view of the tape auto changer shown in FIG. 5;
FIG. 8 is a view showing an operating state of the tape auto changer shown in FIG. 4 , and FIG. 8 is a view showing a state in which a second tape awaiting unwinding is attached to a first tape to be unwound.
9 is an enlarged perspective view of the tape taking-up means shown in FIG.
10 is a view showing an operating state of the tape cutting means shown in FIG.
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 the 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 intrinsic technical idea of the present invention cannot be said to be limited by the embodiments described below, and the It is disclosed that the range that can be easily suggested as a method of substitution or change of the embodiment described in is included.

In addition, since the terms used below are selected for convenience of description, in grasping the intrinsic technical idea of the present invention, they are not limited to the dictionary meaning and are appropriately interpreted as meanings consistent with the technical spirit 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 is a tape supply unit 100, a tape fastening unit 200 and a tape closure according to the present invention. unit 300 .

The tape supply unit 100 according to the present invention feeds the tapes T1 and T2 wound on the bobbins B1 and B2 along the longitudinal direction of the folding surface 8 of the secondary battery 1 guided in the upstream process. It is possible to unwind, and by cutting a plurality of the unwound tapes T1 and T2 , the tape cut pieces P1 , P2 and P3 attached to the folding surface 8 of the secondary battery 1 can be formed.

And the tape adhesive unit holds the tape cut pieces P1, P2, and P3 cut by the tape supply unit 100 so as to be able to temporarily attach it to the folding surface 8 of the secondary battery 1, and the tape complete connection unit 300 ) is to press the upper and lower sides of the tape cut pieces P1, P2, P3 glued 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 sealed. 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 the first and second unwinding shafts 120a and 120b, the tape tension maintaining means 150, the tape taking-off means 160, and the tape cutting. 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 taking means 160, and the tape cutting means. (180) are installed.

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

On the other hand, in the base plate 110, the upper side of the adhesive tape unit 200 is installed to be spaced apart.

To this end, the base plate 110 is installed on the sub-frame 20 extending toward the upper side of the bed 10 from the bed 10 in which the tape joining unit 200 and the tape joining unit 300 are installed.

And the secondary battery 1 to which the tape cut pieces P1, P2, P3 will be attached to the folding surface 8 is transferred to the lower rear side of the base plate 110. At this time, the folding surface 8 of the secondary battery 1 is transferred. ) 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 have first and second bobbins B1 and B2 in which first and second tapes T1 and T2 having an adhesive layer formed thereon are wound in a roll shape, respectively. , and optionally 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 in a plan view, and the first and second unwinding shafts 120a and 120b are connected to the 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 side of the first and second bobbins B1 and B2 are respectively inserted into the outer peripheral surfaces of the first and second unwinding shafts 120a and 120b protruding toward the front of the base plate 110, and the first and the second unwinding shafts 120a and 120b press 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 gripped by the first and second unwinding shafts 120a and 120b formed in this way are selectively selected by the operation of the tape tension maintaining means 150 or the tape taking-up means 160 to be described later. To unwind the first or second tapes T1 and T2 toward the tape auto changer 130 , the first and second tapes T1 and T2 are unwound so that the back surface on which the adhesive layer is formed faces downward.

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

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

Preferably, the first and second unwinding shafts 120a and 120b may be provided with a conventional air shaft or a conventional air chuck, and may be provided with a conventional air shaft or a conventional air chuck. Since the configuration and operation of the provided first and second unwinding shafts 120a and 120b are known techniques, detailed descriptions thereof will be omitted.

Meanwhile, 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 respectively connected to the first and second unwinding shafts. The 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 conventional powder brake or a conventional powder clutch, and the first and second tensions provided by the powder brake or the powder clutch. Since the configuration and operation of the controllers 122a and 122b are known techniques, a detailed description thereof will be omitted.

As an example, the first and second tension controllers 122a and 122b provided as a powder brake or a powder clutch are first and second tapes T1 unwound from the first and second bobbins B1 and B2, as anyone can see. , T2) 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) for measuring the tension of the tape (T1, T1, Adjust the tension of T2).

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 includes the first and second unwinding shafts 120a and 120b. The unwinding of the tapes T1 and T2 is allowed to be unwound continuously without interruption.

That is, the tape auto changer 130 automatically attaches the second tape T2, which is waiting to be unwound, to the first tape T1 at the point in time when the unwinding of the first tape T1 is completed, so that the second tape T2 is formed. The first tape T1, which is waiting to be unwound, is automatically attached to the second tape T2 when the unwinding of the second tape T2 is completed, so that the first tape T1 is unwound.

The tape auto changer 130 has first and second lifting operations for individually lifting and lowering 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 lifting 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. The first and second lifting operation guide rolls 131a and 131b are vertically crossed with respect to the direction, and the first and second lifting operation portions 133a and 133b of the first and second lifting operation units 133a and 133b respectively face up and down. The lifting sliders 135a and 135b are installed to be freely rotatable.

At this time, the first lifting operation guide roll 131a waits for the unwinding of the first tape T1, and the unwinding of the first tape T1 while attaching the first tape T1 to the second tape T2 to be unwound. The first tape disposed on the front side of the base plate 110 to guide it, and similarly, the second lifting operation guide roll 131b waits for the unwinding of the second tape T2, and the first tape from which the second tape T2 is unwound. (T1) It is arranged on the front side of the base plate 110 to guide the attachment and unwinding of the second tape T2.

Here, in the first tape T1 , the back surface on which the adhesive layer is formed is attached to the first lifting operation guide roll 131a to wait for unwinding, and similarly, the second tape T2 has the second lifting operation guide roll on the back surface on which the adhesive layer is formed. It is attached to (131b) and unwinding is waiting. And the first tape (T1) is guided over the radially lower side of the first lifting operation guide roll (131a) on the surface, the second tape (T2) has a rear surface of the second radially upper side of the lifting operation guide roll (131b) is guided across

Meanwhile, between the first lifting operation guide roll 131a and the first unwinding shaft 120a, the first tape T1 unwound from the first bobbin B1 is guided toward the first lifting operation guide roll 131a. The first unwinding guide roll 132a is disposed, and similarly, between the second lifting operation guide roll 131b and the second unwinding shaft 120b, the second tape T2 unwound from the second bobbin B2 is applied to the second The 2nd unwinding guide roll 132b which guides to the raising/lowering operation guide roll 131b side is arrange|positioned.

The first and second unwinding guide rolls 132a and 132b are flat to guide the unwound first or second tapes T1 and T2 like the first and second lifting operation guide rolls 131a and 131b. The first and second unwinding guide rolls 132a and 132b are freely rotated on the front surface of the base plate 110 while forming perpendicular to the guide direction of the first and second tapes T1 and T2 when viewed from installed possible.

At this time, the back side of the first tape T1 is spread over the radially upper side of the first unwinding guide roll 132a to be guided toward the first lifting operation guide roll 131a, and the radial lower portion of the second unwinding guide roll 132b. On the side, the surface side of the second tape T2 is spread and guided to the second lifting operation guide roll 131b side.

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 gripped by the second unwinding shaft 120b passes through the second unwinding guide roll 132b and is guided toward the second lifting operation guide roll 131b. .

The first and second lifting operation units 133a and 133b are first and second lifting cylinders 134a and 134b, respectively, and first and second lifting cylinders 134a and 134b for lifting and lowering by operation of the first and second lifting cylinders 134a and 134b, respectively. and second lifting sliders 135a and 135b.

The first and second elevating cylinders 134a and 134b are installed to face up and down on the rear surface of the base plate 110 as shown, and the first elevating cylinder 134a includes the first elevating slider 135a. 2 is installed so as to be lowered toward the lifting operation unit 133b or raised in a direction opposite 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 as to be raised to the operation part (133a) side or to be lowered in a direction opposite to the first lifting operation part (133a).

In addition, first and second lifting operation guide rolls 131a and 131 are respectively installed on the first and second lifting sliders 135a and 135 as described above. 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 toward the front side of the base plate 110 through the through-holes 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 elevating cylinder 134a lowers the first elevating slider 135a so that the first elevating 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 that the second lifting operation guide roll 131a does not interfere with the first tape T1 from which it is unwound.

Conversely, when unwinding the second tape T2, the second lifting cylinder 134b raises 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 that the first lifting operation guide roll 131a does not interfere with the second tape T2 from which it is unwound.

And when the unwinding of the first tape T1 is completed when the first tape T1 is unwound, the second elevating cylinder 134b is placed on the second elevating operation guide roll 131b, waiting for unwinding of the second tape ( The second lifting slider 135b is raised so that the front surface side of T2 is attached 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 operates the first lifting operation The guide roll 131a and the first raising/lowering slider 135a are raised in a direction opposite to the second raising/lowering operation part 133b and returned.

Conversely, when the unwinding of the second tape T2 is completed when the second tape T2 is unwound, the first elevating cylinder 134a is placed on the first elevating operation guide roll 131a and the first tape waiting to be unwound. The first lifting slider 135a is lowered so that the back side of T1 is attached 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 operates the second lifting operation The guide roll 131b and the second raising/lowering slider 135b are lowered in a direction opposite to the first raising/lowering operation part 133a to return them.

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

On the other hand, the tape auto changer 130 cuts the first tape T1 entering the first lifting operation guide roll 131a side 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 operating part 137a for operating the first unwinding cutter 136a. In addition, the tape auto changer 130 cuts the second tape T2 that enters the second lifting operation guide roll 131b side when the first tape T1 waiting to be unwound is attached to the second tape T2 to be unwound. It further includes a second unwinding cutter 136b and a second unwinding cutter operating part 137b for operating the second unwinding cutter 136b.

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

The first and second unwinding cutter cylinders 138a and 138b are installed up and down on the front surface of the base plate 110 as shown, and the first unwinding cutter cylinder 138a includes the first unwinding cutter slider 139a. It is installed to move toward the first tape T1 passing between the first unwinding guide roll 132a and the first lifting operation guide roll 131a or to be moved in a direction opposite to the first tape T1, likewise The second unwinding cutter cylinder 138b moves the second unwinding cutter slider 139b toward 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 direction opposite 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 wider than the width of the first and second tapes T1 and T2, respectively, and the first unwinding cutter 136a is the first It is mounted on the tip side of the first unwinding cutter slider 139a facing the first tape T1 so as to cut the tape T1, and the second unwinding cutter 136b cuts the second tape T2. It is mounted on the tip side of the second unwinding cutter slider 139b facing the second tape T2 so as to be able to do so.

At this time, the tips of the first and second unwinding cutters 136a and 136b are formed to be inclined from one side to the other in a plan view, which means that the first and second unwinding cutters 136a and 136b use the first and second tapes ( This is to enable cutting T1 and T2) in the same principle as ordinary scissors.

In addition, the first and second unwinding cutters (136a, 136b) has a saw blade like a normal saw is formed along the longitudinal direction of the tip portion of the unwinding cutter (136a, 136b).

That is, the first unwinding cutter 136a moves to the side 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. The first unwinding cutter slider ( The first tape T1 is cut while moving along 139a), and when the cutting of the first tape T1 is completed, the first unwinding cutter 136a is cut by the operation of the first unwinding cutter cylinder 138a. 1 It returns while moving along the 1st unwinding cutter slider 139a which moves away from the tape T1.

Similarly, the second unwinding cutter 136b moves to the side 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. The second unwinding cutter slider ( The second tape T2 is cut while moving along 139b), and when the cutting of the second tape T2 is completed, the second unwinding cutter 136b is cut by the operation of the second unwinding cutter cylinder 138b. 2 It returns while moving along the 2nd unwinding cutter slider 139b which moves away from the tape T1.

On the other hand, the first and second unwinding cutter operation parts 137a and 137b have first and second unwinding cutter safety covers 140a that prevent the tip portions of the first and second unwinding cutters 136a and 136b from being exposed, respectively. , 140b).

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, as shown. 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 respectively moved by the operation of the first and second unwinding cutter safety cylinders 142a and 142b by first and second unwinding cutter safety cylinder rods 143a, 143b), and the first and second unwinding cutter safety cylinders 142a and 142b are respectively provided with the first and second unwinding cutter sliders so as not to interfere with the first and second unwinding cutters 136a and 136b. 139a, 139b).

That is, when the first or second unwinding cutters 136a and 136b move along the first or second unwinding cutter sliders 139a and 139b for cutting the first or second tapes T1 and T2, the first Alternatively, the first or second unwinding cutter safety covers 140a and 140b supported on the second unwinding cutter safety cylinders 142a and 142b also move together with the first or second unwinding cutters 136a and 136b, and the first Alternatively, when the second unwinding cutters 136a, 136b reach the point at which the first or second unwinding tapes T1 and T2 are cut, the first or second unwinding cutter safety cylinders 142a, 142b activate the first or second unwinding cutters. Moving (retracting) the cutter safety cylinder rods 143a, 143b away from the first or second tapes T1, T2, whereby the tip of the first or second unwinding cutters 136a, 136b ends with the first or second tapes T1, T2. The first and second tapes T1 and T2 are cut while being exposed through the second unwinding cutter entrances 141a and 142b.

Conversely, when the cutting of the first or second tapes T1 and T2 is completed and the first or second unwinding cutters 136a and 136b move away from the first or second tapes T1 and T2, the first Alternatively, the first or second unwinding cutter safety covers 140a and 140b supported by the second unwinding cutter safety cylinders 142a and 142b are also moved together with the first or second unwinding cutters 136a and 136b, in which case the first 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 form the first or second unwinding cutter safety cylinders 142a and 142b. The tip of the second unwinding cutter 136a, 136b is inserted into the first or second unwinding cutter entrance 141a, 141b.

The first or second unwinding cutter safety covers 140a and 140b formed in this way make the first or second tapes T1 and T2 unwind on the first or second lifting operation guide rolls 131a and 131b, respectively, while waiting for unwinding. The operator's hand does not contact the tip of the first or second unwinding cutter (136a, 136b).

In the above description, the tape auto changer 130 for attaching the first or second tapes T1 and T2 waiting to be unwound at the time when the unwinding of the first or second tapes T1 and T2 is completed has been described. Anyone can see that the changer 130 can make it possible to quickly attach the waiting first or second tapes T1 and T2 when a defective section of the unwound first and second tapes T1 and 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, and the tape tension maintaining means 150 is the tape taking-up means 150 . ) to maintain a state in which the first or second tape (T1, T2) taken to a predetermined length is pulled taut.

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 is perpendicular to the guide direction of the first and second tapes T1 and T2 in a plan view so as to maintain tension while guiding the first or second tapes T1 and T2. It is disposed on the front surface of the base plate 110 so as to be elevating along the vertical elevating long hole 112 formed in the base plate 110 while being formed.

The surface side of the first or second tapes T1 and T2 is spanned and guided toward the radially lower side of the dancer roll 151 arranged in this way, and excessive tension is applied to the first or second tapes T1 and T2 to form the second tape. When the first or second tapes T1 and T2 are tightened, the dancer roll 151 rises along the elevating long hole 112 while maintaining the tension of the first or second tapes T1 and T2.

Conversely, when the first or second tapes T1 and T2 are loosened, the dancer roll 151 descends along the elevating long hole 112 while maintaining the state in which the first or second tapes T1 and T2 are taut. let there be

On the other hand, the dancer roll 151 is freely rotatably installed and supported on the elevating block 152 disposed on the rear surface of the base plate 110 through the elevating long hole 112, and the elevating block 152 is the dancer roll ( 151) is slidably mounted on the elevating rail 159 extending in 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 operation can be performed along the elevating long hole 112. do.

The third and fourth unwinding guide rolls 153a and 153b are provided with respect to the guiding direction of the first and second tapes T1 and T2 in plan view so as to guide the first or second tapes T1 and T2. formed vertically.

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

The back surfaces of the first or second tapes T1 and T2 are draped over and guided to the radially upper side of the third and fourth unwinding guide rolls 153a and 153b installed in this way, respectively.

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. 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 past the fourth unwinding guide roll 153b to be guided toward the tape taking-up means 160 . It further includes a turn guide roll 154 .

The direction change guide roll 154, like the third and fourth unwinding guide rolls 153a, 153b, can guide the first and second tapes T1 and T2 in plan view so as to guide the first and second tapes T1 and T2. It is formed perpendicularly to the guide direction of T1 and T2).

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 . To the side, the back side of the 1st or 2nd tape T1, T2 guided past the 4th unwinding guide roll 153b is spanned and guided. Accordingly, the first or second tapes T1 and T2 are guided toward the tape taking-up means 160 in a direction parallel to the transport direction of the secondary battery 1 while at the same time being inverted.

On the other hand, the tape tension maintaining means 150 further includes a pressure operation unit 155 for preventing the dancer roll 151 from rising when the tape auto changer 130 is operated.

The pressurizing operation unit 155 extends vertically along the longitudinal direction of the pressurizing servomotor 156 installed on the rear surface of the base plate 110 adjacent to the upper end of the elevating elongated hole 112 and the elevating elongated hole 112 , The upper end is coupled to the pressure screw shaft 157 and the pressure screw shaft 157 connected to the output end of the pressure servo motor 156 and includes a pressure block 158 that lifts and lowers 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 to press the lifting block 152 , and the pressing block 158 is a lifting rail 159 together with the lifting block 152 to move in a straight line. ) is slidably mounted on the

That is, when the second tape T2 is attached to the unwound first tape T1 or the first tape T1 is attached to the unwound second tape T2, the pressure servomotor 156 is the pressure block 158 . The pressing screw shaft 157 is rotated to descend, whereby the pressing block 158 comes in contact with the lifting block 152 while descending along the pressing screw shaft 157 and presses the lifting block 152 to prevent it from ascending.

Conversely, when the attachment of the second tape T2 to the first tape T1 is completed or when the attachment of the first tape T1 to the unwound second tape T2 is completed, the pressure servomotor 156 is the pressure block 158 . The pressure screw shaft 157 is rotated to rise, and at this time, the pressure block 158 rises to the upper end side of the elevating long hole 112 along the pressure screw axis 157, whereby the elevating block 152 and the dancer roll ( 151) is a lifting operation along the elevating long hole (112).

On the other hand, a plurality of guide rolls for guiding the supply of the first or second tape (T1, T2) to be unwound, that is, the first to fourth unwinding guide rolls (132a, 132b, 153a, 153b), the direction change guide roll 154 ), the first and second lifting operation guide rolls (131a, 131b) are installed to prevent sagging 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, 131b has a bearing (not shown) as a medium to the fixed end side bearing bracket 191 and free It is rotatably supported on the short side bearing bracket 192 .

And 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 fixed end side bearing bracket 191 is provided to be thicker than the free end side bearing bracket 192 to provide rigidity, and the connecting bar 193 is provided with the guide rolls 132a, 132b, 153a, 153b, 154, 131a. , 131b) guide rolls 132a, 132b, 153a, to minimize the risk of interference, that is, adhesion of the first and second tapes T1, T2, to the first or second tapes T1 and T2 guided by the 153b, 154, 131a, 131b are formed to have a thickness thinner 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 tape (T1, T2), the guide roll (132a, 132b, 153a, 153b, 154, 131a, 131b) on the surface of the first or second tape (T1, T2) slip when guiding and knurling so that the adhesive layer of the first or second tape (T1, T2) does not stick, and at the same time hydrophobic A fluororesin with hydrophobic properties is coated. Here, the fluororesin may be conventional Teflon.

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

The tape taking means 160 is a first or second tape (T1, T2) guided from the tape tension maintaining means 150 so that the tape cutting pieces (P1, P2, P3) are formed by the tape cutting means (180). ) to be intermittently taken up by a preset length along the transport direction of the secondary battery 1 .

The tape taking means 160 includes a tape clamp 161 for selectively holding the first or second tapes T1 and T2 guided from the tape tension maintaining means 150 , and a second tape clamp 161 . and a tape transfer 168 for pulling and pulling the extended ends of the first or second tapes T1 and T2 to a preset length.

The tape clamp 161 includes a movable clamp block 162 for holding the first or second tapes T1 and T2, a fixed clamp block 163 and a clamp lifting cylinder 164 for lifting and lowering 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 tapes ( It is disposed on the front surface of the base plate 110 adjacent to the direction change guide roll 154 so as to be able to grip the front and back surfaces of T1 and T2 by pressing.

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

At this time, the clamp elevating cylinder 164 is equipped with a clamp elevating slider 165 that elevates by the operation of the clamp elevating cylinder 164, and the clamp elevating slider 165 includes a movable clamp block 162 as shown. is mounted

That is, the first or second tapes T1 and T2 guided from the direction change guide roll 154 side are guided between the movable clamp block 162 and the fixed clamp block 163 , and are fixed with the movable clamp block 162 . The portion adjacent to the extension end 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 that lift and lower by the operation of the clamp lifting cylinder 164 . ) to release the hold or hold.

On the other hand, the fixed clamp block 163 and the clamp elevating 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 rear side 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 ( 167) is slidably mounted on the top. At this time, the positions of the movable clamp block 162 , the fixed clamp block 163 and the clamp lifting 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 in the horizontal longitudinal direction of the base plate 110 , that is, in the transport direction of the secondary battery 1 . They are connected to each other through the take-up long hole 113 .

That is, the position of the movable clamp block 162 , the fixed clamp block 163 and the clamp elevating cylinder 164 is 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 for lifting and lowering.

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 long hole 113. It further includes a take-up servomotor 174 .

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 first 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 as to be gripped by pressing the rear surface and the surface of the extended end side.

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, the gripper lifting/lowering slider 172 is mounted on the gripper lifting/lowering cylinder 171 by the operation of the gripper lifting/lowering cylinder 171 , and the movable gripper block 169 is mounted on the gripper lifting/lowering 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 to the tape transfer 168 side, and thus the movable clamp block 162 and The extended ends of the first or second tapes T1 and T2 held by the fixed clamp block 163 include a movable gripper block 169 and a fixed gripper block 170 that lift and lower by the operation of the gripper lifting cylinder 171 . The phage or 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 . .

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

The take-up servomotor 174 is installed on the rear surface of the base plate 110 as shown, and at the output end of the take-up servomotor 174, a take-up screw shaft extending horizontally along the longitudinal direction of the take-up long hole 113 ( 175) is installed.

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

That is, when the first or second tapes T1 and T2 held by the movable clamp block 162 and the fixed clamp block 163 are taken, the movable gripper block 169 and the fixed gripper block 170 are connected to the movable clamp block 162 . ) and the first or second tape (T1, T2) held by the fixing clamp block 163, the take-up servomotor 174 rotates the take-up screw shaft 175 to grip the gripper guide block ( 173) is moved to the tape clamp 161 side.

In addition, 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 held by the movable clamp block 162 and the fixed clamp block 163 , the movable gripper block 169 and the fixed gripper block 170 are movable. The clamp block 162 and the fixed clamp block 163 release the grip on the first or second tapes T1 and T2, and at the same time, the take-up servomotor 174 rotates the take-up screw shaft 175 to rotate 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 taken to a predetermined length.

Preferably, the first and second tapes T1 and T2 are gripped on the gripping surface of the fixed clamp block 163 and the fixed gripper block 170 for gripping the surface side of the first or second tapes T1 and T2. ), a urethane coating layer is formed to hold it elastically.

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

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

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

The tape cutting means 180 is a first, second, and third cutting piece cutter (181a, 181b, 181c), and the first, second and third cutting piece cutters (181a, 181b, 181c) for operating, respectively. It includes first, second and third cutting piece cutter operation parts (182a, 182b, 182c).

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

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

And the first, second and third cut-piece cutter cylinders 183a, 183b, 183c take the first, second and third cut-piece cutter sliders 184a, 184b, 184c respectively along the long hole 113. The first or second tape (T1, T2) is installed to move downward or move upward in the direction opposite to the first or second tape (T1, T2) taken along the take-up long hole (113) do.

That is, the positions of the first, second and third cutting piece cutter cylinders 183a, 183b, and 183c are adjusted while being guided along the cutting piece rail 185, and the first, second and third position adjustments are completed. The cutting piece cutter cylinders (183a, 183b, 183c) are fixed to the cutting piece rail 185 via a common bolt or the like.

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

At this time, the tips of the first, second and third cut-off cutters 181a, 181b, and 181c are formed to be inclined from one side to the other when viewed from the side, which is the first, second and third cut-piece cutters 181a, This is to enable the 181b and 181c to cut the first or second tapes T1 and T2 in the same way as with ordinary scissors.

In addition, at the tips of the first, second, and third cut-off cutters 181a, 181b, and 181c, saw blades like a normal saw are formed along the longitudinal direction of the tips.

That is, the first, second, and third cut-piece cutters 181a, 181b, and 181c are formed by the operation of the first, second, and third cut-piece cutter cylinders 183a, 183b, and 183c by the tape taking-up means 160. The first or second tape (T1, T1, T2) is cut so that the tape cut pieces P1, P2, P3 are formed, and the taken-up first or second tape T1, T2 is cut to form the tape cut pieces P1, P2, P3, The first, second and third cut-piece cutters 181a, 181b, 181c are formed by the operation of the first, second and third cut-piece cutter cylinders 183a, 183b, 183c to form the tape cut pieces P1. P2. It is returned 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 up by the tape taking-up means 160 is an adsorption plate (not shown) of the adhesive tape unit 200 installed on the lower side of the base plate 110 . ) is cut by the first, second and third cutting piece cutters (181a, 181b, 181c) in a state adsorbed to them.

And the first cutting piece cutter (181a) of the first or second tape (T1, T2) when holding the first or second tape (T1, T2) by the movable clamp block 162 and the fixed clamp block 163 The extended end is disposed to be spaced apart from the movable clamp block 162 and the fixed clamp block 163 to be exposed toward the tape transfer 168 .

On the other hand, the first, second, and third cutting-piece cutter operation parts (182a, 182b, 182c) are normally first, second and third cutting-piece cutters (181a, 181b, 181c) so that the tip of the cutter is not exposed. 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, 186c) extend along the longitudinal direction of the first, second and third cutting piece cutters (181a, 181b, 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, 186c) have a slit first in which the tips of the first, second and third cutting piece cutters (181a, 181b, 181c) enter and exit. , second and third cutting piece cutter entrances (187a, 187b, 187c) are formed.

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

That is, the first or second tapes in which the first, second and third cut-piece cutters 181a, 181b, 181c are taken along the first, second and third cut-piece cutter sliders 184a, 184b, 184c. When moving for cutting of (T1, T2), the first, second and third cutting piece cutter safety cover (186a) supported on the first, second and third cutting piece cutter safety cylinders (188a, 188b, 188c) , 186b, 186c also moves with the first, second and third cut-off cutters 181a, 181b, 181c, and the first, second, and third cut-off cutters 181a, 181b, 181c take over When the first, second and third cutting piece cutter safety cylinders 188a, 188b, 188c reach the point of cutting the first or second tape T1, T2, the first, second and third cut pieces Moves (retracts) the cutter safety cylinder rods 189a, 189b, 189c away from the taken-up first or second tape T1, T2, whereby the first, second and third cut piece cutters 181a; The tip of the 181b, 181c) cuts the first or second tape (T1, T2) taken while being exposed through the first, second, and third cutting piece cutter entrances (187a, 187b, 187c) to cut the tape cut piece ( P1, P2, P3) are formed.

Conversely, the first or second tape (T1, T2) is cut to form tape cut pieces (P1, P2, P3) so that the first, second and third cut piece cutters (181a, 181b, 181c) cut the tape When moving away from the pieces P1, P2, and P3, the first, second and third cut piece cutter safety covers supported on the first, second and third unwinding cutter safety cylinders 188a, 188b, 188c. (186a, 186b, 186c) also moves with the first, second and third cut-off cutters 181a, 181b, 181c, with the first, second and third cut-off cutter safety cylinders 188a, 188b, 188c) moves (advances) the first, second and third unwinding cutter safety cylinder rods 189a, 189b, 189c to the side of the cut tape cut pieces P1, P2, P3 to form the first, second and second 3 Let the tip of the cut piece cutters 181a, 181b, 181c be inserted into the first, second and third cut piece cutter entrances 187a, 187b, 187c.

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

The tape supply unit for a 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). The tape supply unit because it unwinds the first or second tape, and cuts the unwound first or second tape (T1, T2) in large number to form the 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 is continuous without stopping the unwinding of the first and second tapes T1 and T2 wound on the first or second bobbins B1 and B2. to be ejected

Claims (14)

In the tape supply unit for a pouch-type secondary battery taping device for unwinding and supplying a tape having an adhesive layer formed on its back surface,
The tape supply unit,
A tape taking-off means for taking the unwound tape to a predetermined length along the transport direction of the secondary battery;
The tape taking means,
a tape clamp having a movable clamp block and a fixed clamp block for gripping the unwound and supplied tape and releasing the gripping of the tape when the tape is taken up; and
A tape transfer having a movable gripper block and a fixed gripper block for gripping the extended end of the tape gripped by the tape clamp and pulling the gripped tape to a predetermined length. tape supply unit.
The method according to claim 1,
A surface side of the tape is gripped on the gripping surfaces of the fixed clamp block and the fixed gripper block,
A tape supply unit for a pouch-type secondary battery taping device in which a urethane coating layer is formed on the gripping surfaces of the fixed clamp block and the fixed gripper block.
The method according to claim 1,
A back side of the tape is gripped on the gripping surfaces of the movable clamp block and the movable gripper block,
The gripping surfaces of the movable clamp block and the movable gripper block are knurled and coated with a fluororesin.
The method according to claim 1,
A back side of the tape is gripped on the gripping surfaces of the movable clamp block and the movable gripper block,
Pyramids are processed and arranged to form a plurality of rows and columns on the gripping surfaces of the movable clamp block and the movable gripper block, and the vertices of the pyramids are flat or curved.
5. The method according to claim 4,
A tape supply unit for a pouch-type secondary battery taping device in which a fluororesin is coated on the surface of the pyramids.
6. The method according to claim 3 or 5,
The fluororesin is a tape supply unit for a pouch-type secondary battery taping device of Teflon.
The method according to claim 1,
The tape clamp is
Further comprising; a clamp lifting cylinder for lifting and lowering the movable clamp block;
The movable clamp block, the fixed clamp block and the clamp elevating cylinder are mounted on the front side of the clamp guide block, and the rear side of the clamp guide block is slidably mounted on a take-up rail extending along the transport direction of the secondary battery,
A tape supply unit for a pouch-type secondary battery taping device that is fixed to the take-up rail on the rear side of the clamp guide block.
8. The method of claim 7,
The tape transfer is
a gripper lifting cylinder for lifting and lowering the movable gripper block; and
and a take-up servomotor for moving the movable gripper block, the fixed gripper block, and the gripper elevating cylinder along the take-up rail;
the movable gripper block, the fixed gripper block, and the gripper elevating cylinder are mounted on a front surface of the gripper guide block;
The rear side of the gripper guide block is slidably mounted on the take-up rail,
A tape supply unit for a pouch-type secondary battery taping device to which a take-up screw shaft connected to an output end of the take-up servomotor is coupled to the rear side of the gripper guide block while extending along the longitudinal direction of the take-up rail.
8. The method of claim 7,
The tape supply unit,
It further comprises a; tape cutting means disposed on the upper side of the tape taking-up means, cutting the tape taken by the tape taking-off means to form a tape cut piece attached to the folding surface of the secondary battery,
The tape cutting means,
one or more cut-off cutters for cutting the tape; and
A tape supply unit for a pouch-type secondary battery taping device comprising a; provided to correspond to the cut piece cutter, and a cut piece cutter operation unit for moving the cut piece cutter so that the tape is cut.
10. The method of claim 9,
The cutting piece cutter is provided in the form of a flat plate having a length longer than the width of the tape,
The tip of the cutting piece cutter is inclined from one side to the other when viewed from the side,
A tape supply unit for a pouch-type secondary battery taping device in which a saw blade is formed at the tip of the cutting piece cutter.
10. The method of claim 9,
The cutting piece cutter operating part is fixedly installed on the cutting piece rail extending along the transport direction of the secondary battery from the upper side of the tape take-up means,
The cutting piece cutter operating unit,
cut-off cutter cylinder; and
It includes; a cutting piece cutter slider that moves by the operation of the cutting piece cutter cylinder.
A tape supply unit for a pouch-type secondary battery taping device in which the cut piece cutter is mounted on the cut piece cutter slider.
12. The method of claim 11,
The cutting piece cutter operating unit,
A tape supply unit for a pouch-type secondary battery taping device further comprising a; a cutting piece cutter safety cover that prevents the tip of the cutting piece cutter from being exposed in normal times, and exposing the tip of the cutting piece cutter when the tape is cut.
13. The method of claim 12,
The cutting cutter safety cover is provided in the shape of a plate having a cutting piece cutter entrance and exit through which the tip of the cutting piece cutter enters and exits,
The cutting piece cutter safety cover is a tape supply unit for a pouch-type secondary battery taping device that is supported on the extension end of the cut piece cutter safety cylinder rod of the cut piece safety cylinder mounted on the cut piece cutter slider.
8. The method of claim 7,
The tape taking means and the tape cutting means are a tape supply unit for a pouch-type secondary battery taping device installed on a base plate.

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