KR101064165B1 - Automatic taping device for lithium ion secondary battery - Google Patents

Abstract

The present invention relates to a pouch automatic taping apparatus for a lithium ion secondary battery. It comprises a first carrier reciprocating along the first transport rail; A first transport plate positioned on the first carrier and horizontally supporting a secondary battery to be taped; A first tape part attached to a bottom surface of the fusion part of the secondary battery seated on the first transfer plate, and attaching a tape to a width half of the tape; A second carrier reciprocating along the second conveyance rail extending in the longitudinal direction; A second transfer plate mounted on the second carrier and horizontally supporting the tapered secondary battery; A transfer part for moving the secondary battery having completed the primary taping from the first transfer plate to the second transfer plate; And a secondary taping unit for lifting and fold up the other half of the tape in the width direction of the tape attached to the bottom surface of the fusion unit of the secondary battery seated on the second transfer plate and adhering to the top surface of the fusion unit.
The pouch automatic taping device of the lithium ion secondary battery of the present invention made as described above can automatically attach the insulating tape to the fusion portion while continuously transporting the secondary battery, so that the taping operation is very quick and accurate, and the cutting length of the tape Is uniform, there is no waste of tape, and there is no defect in taping and reliability is good.

Description

Automatic taping device for Lithium Ion secondary battery

The present invention relates to a pouch automatic taping apparatus for a lithium ion secondary battery.

Recently, the technology of secondary batteries, which are being extended to electric vehicle power sources, is more economical and has higher output. There are many kinds of secondary batteries such as nickel cadmium batteries, nickel hydrogen batteries, lithium batteries, and lithium ion secondary batteries.

Among the secondary batteries, the pouch type secondary battery includes a positive electrode plate to which a positive electrode tab is connected, a negative electrode plate to which a negative electrode tab is connected, a separator interposed between the positive electrode plate and a negative electrode plate to separate the positive electrode plate and the negative electrode plate, and the positive electrode plate and the negative electrode plate. And an aluminum pouch accommodating the separator and sealed to the outside, and an electrolyte filled in the pouch.

1 illustrates the pouch type secondary battery 11 described above.

As shown in FIG. 1, the conventional pouch type secondary battery 11 has a shape of a substantially square plate and has an electrode tab 15 at an upper end thereof. The electrode tab 15 is connected to another secondary battery 11 through a bus bar. In the secondary battery 11, the pouch 13 for hermetically receiving the electrode assembly and the electrolyte is designed such that its edge is fused to prevent leakage of the electrolyte therein. Reference numeral 13a denotes a welded portion.

On the other hand, in order to configure the battery module using the secondary battery 11 having the above-described structure, after loading each secondary battery 11 in a pack (not shown) in a multi-stage, using a bus-bar (bus-bar) The electrode tab 15 is connected. The pack is a box-type case made of stents to accommodate the secondary batteries 11 stacked in multiple stages.

However, the battery module has a problem in that electricity of the secondary battery may leak into the pack to generate an electrical short. The electricity generated in the secondary battery should be supplied through the normal supply line through the electrode tab 15, but the electricity of the secondary battery 11 may be caused due to a poor sealing of the fusion portion 13a, leakage of electrolyte solution, or poor pouch material. Can flow from the aluminum pouch 13 into the pack. In fact, a fire of the battery module often occurs as a cause of the short. A battery module mounted in an electric vehicle or a hybrid vehicle may cause a fire.

In order to block the occurrence of the short, the secondary battery 11 and the inner wall surface of the pack may be insulated from each other. If the secondary battery 11 and the pack are insulated, even if the sealing is poor, the electrolyte is leaked, or the material of the pouch is poor, short circuit does not occur once, so that a fire can be prevented.

Conventionally, an insulating tape has been used as an insulating means for insulating the secondary battery 11.

2 illustrates a secondary battery 11 to which an insulating tape 17 is applied.

As shown in the figure, an insulating tape 17 is attached to both fusion portions 13a of the secondary battery 11. The insulating tape 17 completely surrounds the fusion portions 13a of both sides of the secondary battery 11 to insulate the secondary battery 11 from the pack. The insulating tape is an adhesive adhesive tape having a predetermined width and insulating property.

As a method for adhering the insulation tape 17 to the fusion portion 13a, a worker has conventionally taken a method of cutting the insulation tape 17 by hand to a proper length and attaching the insulation tape 17 to the fusion portion. That is, conventionally, there was no dedicated device for adhering the insulating tape 17 to the edge of the secondary battery.

Since the taping of the insulating tape 17 is performed manually as described above, the work takes a very long time and the work fatigue is very severe, and in particular, the adhesion of the tape may be poor. In addition, when the insulation tape 17 is not cut exactly as much as the length of the fusion portion, for example, it is cut short, the insulation tape 17 does not completely cover the fusion portion, so the taping must be repeated. On the contrary, if the insulation tape 17 is cut too long, the remaining portion must be cut off after adhesion. Not only waste of insulating tape, but also more work.

The present invention has been made to solve the above problems, and since the insulating tape can be automatically attached to the welding portion while continuously transporting the secondary battery, the taping operation is very quick and accurate, and the cutting length of the tape is uniform so that the tape is wasted. It is an object of the present invention to provide a pouch automatic taping device for a lithium ion secondary battery having high reliability because no defect of taping occurs.

The pouch automatic taping apparatus of the lithium ion secondary battery of the present invention for achieving the above object is to attach an insulating tape to the welding portion located at the edge of the pouch of the pouch-type secondary battery, the first conveying rail extending in the longitudinal direction A first carrier reciprocating along; A first transport plate positioned on the first carrier and horizontally supporting a secondary battery to be taped; A motor configured to rotate the first transfer plate within a range of 180 degrees at a lower portion of the first transfer plate while being mounted on the first carrier; A first taping part to attach a tape having a predetermined width to a bottom surface of the fusion part of the secondary battery seated on the first transfer plate, and attach a half of the tape in a width direction thereof; A second carrier reciprocating along a second conveyance rail extending in a longitudinal direction as interlocked with the first carrier; A second transfer plate mounted on the second carrier and horizontally supporting the tapered secondary battery; A transfer unit configured to move the secondary battery having completed primary taping by the primary taping unit from the first transfer plate to the second transfer plate; And a secondary taping unit for lifting and fold up the other half of the tape in the width direction of the tape attached to the bottom surface of the fusion unit of the secondary battery seated on the second transfer plate and adhering to the top surface of the fusion unit.

In addition, it is characterized in that the second taping portion is handed over the secondary battery is completed, the pressing unit for pressing the tape adhered to the fusion unit is characterized in that it is further provided.

In addition, the first transfer plate; It takes the form of a square plate and has a linear protrusion protruding upward at its edge to contact a portion of the bottom surface of the fusion portion of the pouch, wherein the secondary battery is mounted horizontally on the first transfer plate and the fusion portion is the linear protrusion. It protrudes beyond the outer region of the first transfer plate, the second transfer plate; It takes the form of a square plate and the upper edge portion is characterized in that it comprises a support surface for supporting the fusion portion horizontally.

In addition, the primary taping unit; A tape supply unit for unwinding and cutting the tape by a predetermined length from a reel on which the tape to be used is wound, and moving the tape of a predetermined length supplied from the tape supply unit toward the first conveying plate and protruding out of the linear projection of the first conveying plate. A tape conveying portion for reaching the bottom of the welded portion, and a pouch support portion which operates together with the tape conveying portion to support the welded portion downward when the tape contacts the bottom of the welded portion by the tape conveying portion to allow the tape to adhere to the welded portion. It is characterized by.

In addition, the tape supply unit; A frame for rotatably supporting the reel, a finger reciprocating in a horizontal direction while being supported by the frame, and a finger for unwinding the tape by biting the leading end of the tape and moving away from the reel, between the reel and the finger; Located in the support block for horizontally supporting the tape in the state pulled by the finger, and characterized in that it comprises a blade for cutting the tape in the state over the top surface of the support block pulled by the finger.

In addition, the upper portion of the support block, by the actuator is characterized in that the tape pressing member for preventing the movement of the tape by pressing the tape toward the support block side before the blade cut the tape.

In addition, the tape transfer unit; Actuator for moving the tape support part that enters between the supporting block and the finger to support the tape before the cutting of the tape, and the tape support part on which the tape is placed on the upper surface after the tape is cut, to move to the bottom of the fusion part. Characterized in that it comprises a.

In addition, the secondary taping unit; Frames facing each other with the second transfer rail interposed therebetween, and being provided on an upper and lower portions of the frames, and lifting and lowering plates after the second transfer plate arrives between the frames, and are provided on the respective lifting plates. A horizontal sliding plate moving forward and backward with respect to the second transfer plate, a horizontal actuator moving forward and backward with the horizontal sliding plate, a rotating plate provided on an upper portion of the horizontal sliding plate so as to be rotatable, and a tip of each rotating plate. And a pressure rod positioned horizontally on the support surface of the second transfer plate when the lifting plate is lowered, and elastic support means for elastically pressing the pressure rod to the support surface. The tape having half attached thereto is caught by the pressure bar in the process of seating the secondary battery on the second transfer plate and is bent upwardly. Characterized in that said Cali the pressure rods when the pressing bar is moved by the actuator portion fused to be bonded to the upper surface of the fusing portion.

In addition, the crimping portion; When the frame positioned on the upper part of the second conveying rail and the secondary battery mounted on the frame and supported by the second conveying plate reach the inside of the frame are lowered, the taping part of the secondary battery is moved to the second conveying plate. It characterized in that it comprises an actuator having a pressure head for pressing to the support surface portion of the.

The pouch automatic taping device of the lithium ion secondary battery of the present invention made as described above can automatically attach the insulating tape to the fusion portion while continuously transporting the secondary battery, so that the taping operation is very quick and accurate, and the cutting length of the tape Is uniform, there is no waste of tape, and there is no defect in taping and reliability is good.

1 is a perspective view of a general secondary battery.
FIG. 2 is a view illustrating an insulating tape applied to the secondary battery of FIG. 1.
Figure 3 is a schematic diagram showing the overall configuration of the pouch automatic taping apparatus of a secondary battery according to an embodiment of the present invention.
4 is a partially exploded perspective view illustrating the first transfer plate and the first carrier illustrated in FIG. 3.
FIG. 5 is a side view illustrating a state in which a secondary battery is mounted on the first transfer plate illustrated in FIG. 4.
6 is a perspective view illustrating the tape supply unit and the tape transfer unit shown in FIG. 3 together.
7A to 7E are diagrams for explaining the operation mechanism of the tape transfer unit.
8 is a perspective view illustrating a pouch support part of the first taping part according to an exemplary embodiment of the present invention.
9 is a view illustrating an operation principle of the first taping unit.
10 is a perspective view of the transfer unit shown in FIG. 3.
FIG. 11 is a perspective view illustrating the second transfer plate and the second carrier illustrated in FIG. 3.
FIG. 12 is a side view illustrating a state in which a secondary battery is mounted on the second transfer plate illustrated in FIG. 11.
FIG. 13 is a perspective view of the secondary taping unit illustrated in FIG. 3.
14A to 14E are views for explaining the principle of operation of the secondary taping unit.
15 is a side view of the crimping unit shown in FIG. 3.

Hereinafter, one embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a schematic diagram showing the overall configuration of the pouch automatic taping apparatus of a secondary battery according to an embodiment of the present invention.

Basically, the automatic taping apparatus 19 according to the present embodiment includes a first transfer plate 23 and a second transfer plate 39 that horizontally support the secondary battery 11 and reciprocate a predetermined path, and the first transfer plate 23. A primary taping part attached to one side of the fusion part of the secondary battery mounted on the transfer plate 23, but having only the first half in the width direction of the insulating tape, and the other half of the insulating tape of the fusion part 13a; And a secondary taping portion attached to the opposite side.

Referring to FIG. 3, the automatic taping apparatus 19 according to the present embodiment includes a first conveying rail 21 extending in a longitudinal direction and a secondary battery 11 reciprocating along the first conveying rail 21. ) And a tape supply part 31 for attaching the tape to the bottom surface of the fusion portion 13a of the secondary battery 11 moved by the first transfer plate 23. And the tape transfer part 33 and the pouch support part (41 in FIG. 8), the transfer part 35 for transferring the secondary battery 11 of the first transfer plate 23 to the second transfer plate 39, and the second The secondary tapering portion 43 for folding the insulating tape 17 on the upper surface of the fusion portion 13a of the secondary battery seated on the transfer plate 39 and the longitudinal reciprocating motion of the second transfer plate 39 The second transfer rail 37 to guide, and the pressing portion 45 for confirming the taping by pressing the insulating tape attachment portion of the secondary battery moving along the second transfer rail (37).

The tape supply part 31, the tape transfer part 33, and the pouch support part 41 interoperate with each other to form a primary taping part. The tape supply part 31 and the pouch support part 41 are supported by the plate-shaped frame 29.

The first conveying rail 21 and the second conveying rail 37 are arranged in parallel with each other, and the guide rail 35a of the transfer part 35 is orthogonal to the first and second conveying rails 21 and 37. Is installed.

In addition, in the present embodiment, the primary tape is a half width portion of the insulating tape 17 having a predetermined width on the bottom surface of the fusion portion 13a (based on the secondary battery 11 lying horizontally). Secondary taping is a process of adhering the upper half of the fusion part 13a by folding up the remaining half of the insulating tape in the width direction.

Reference numeral 47 is an alignment portion. The alignment unit 47 passes through the fusion unit 13a of the secondary battery 11 starting for taping in a state in which the alignment unit 47 is placed on the first transfer plate 23, and the secondary battery for the first transfer plate 23 ( It plays a role to hold the relative position of 11) constantly.

4 is a partially exploded perspective view illustrating the first transfer plate and the first carrier illustrated in FIG. 3, and FIG. 5 is a side view illustrating a state in which a secondary battery is mounted on the first transfer plate illustrated in FIG. 4. .

Referring to the drawings, it can be seen that the first carrier 24 is installed on the first transfer rail 21. The first carrier 24 is guided to the first transfer rail 21 and reciprocates in the longitudinal direction.

In addition, the upper portion of the first carrier 24 is provided with a motor 24a. The motor 24a is mounted on the first carrier 24 and is installed such that the drive shaft 24b is positioned vertically. The drive shaft 24b rotates by 180 degrees clockwise or counterclockwise.

In addition, the first transfer plate 23 is horizontally installed on the upper end of the drive shaft 24b. In order to fix the first transfer plate 23 to the drive shaft 24, a drive shaft fixing part 23c is provided on the bottom of the first transfer plate 23 to accommodate and fix the upper end of the drive shaft 24.

The first transfer plate 23 has a planar shape in the form of a square plate. The planar shape of the first transfer plate 23 or the second transfer plate 39 to be described later depends on the shape of the secondary battery 11 to be taped.

In any case, the first transfer plate 23 takes the form of a square plate and has a linear protrusion 23a on the upper surface of the edge portion in the width direction. The linear projection 23a partially supports and supports the fusion portion 13a. When the fusion portion 13a is pressed by the tape pressing portion (41b in Fig. 9A) as shown in Fig. 9A, the fusion portion Support 13a.

In particular, as shown in FIG. 5, the fusion portion 13a is exposed beyond the linear projection portion 23a by the width A to the outer region of the first transfer plate 23. In other words, the bottom of the fusion portion 13a is opened downward. Therefore, as shown in Fig. 9C, the insulating tape can be attached to the bottom surface of the fusion portion 13a.

Four grooves 23b are formed on the bottom surface of the first transfer plate 23. The groove 23b is a space where the pick-up finger 35k of the transfer unit 35 shown in FIG. 10 enters, and the pick-up finger 35k enters the lower part of the secondary battery 11 to lift the secondary battery 11. It is designed to be uploaded.

FIG. 6 is a perspective view illustrating the tape supply unit 31 and the tape transfer unit 33 shown in FIG. 3 together.

As shown in the drawing, the tape supply unit 31 applied to the taping apparatus according to the present embodiment includes a flat frame 29 that is vertically erected, and a finger transfer rail installed horizontally on one side of the frame 29. 31f), a transfer head 31k guided to the finger transfer rail 31f and reciprocating in the horizontal direction, and a finger portion 31g mounted to the transfer head 31k.

The finger portion 31g is composed of an actuator 31n and a finger 31m as shown in Fig. 7A. The finger 31m repeats the operation of being opened or pinched like an alligator mouth by the action of the actuator 31n.

In addition, the tape supply unit 31 includes a reel 31a on which the insulating tape 17 is wound, a plurality of tape guides 31c supporting the insulating tape 17 released from the reel 31a, and the insulation. A support block 31v and a movable block 31w for horizontally supporting the tape 17, a cutting portion 31e for cutting the insulating tape 17, and an insulating tape during operation of the cutting portion 31e ( It further includes a support portion 31d for pressing 17 to the support block 31v.

The support block 31v is a block-type member fixed to the frame 29, and the movable block 31w is a member reciprocating in the direction of the arrow m shown in FIG. 7C or the opposite direction.

The said cutting part 31e is comprised from the cutter 31s which has the blade 31t which cuts the insulating tape 17, and the actuator 31r which raises and lowers the said cutter 31s. The support portion 31d includes a tape pressing member 31q for pressing and fixing the insulating tape 17 and an actuator 31p for raising and lowering the tape pressing member 31q.

7A to 7E, the operation of the tape supply unit 31 will be described.

First, as shown in FIG. 7A, the insulating tape 17 is placed on the upper surface of the support block 31v and the movable block 31w to stand by horizontally. In particular, the distal end of the insulating tape 17 protrudes to the side of the movable block 31w, and is located vertically below the blade 31t.

In the above standby state, the finger portion 31g is moved in the direction of the arrow e to cut out the insulating tape 17 for use. Of course, the finger 31m is open at this time.

When the finger 31m finally reaches the tip of the insulating tape 17, as shown in Fig. 7B, the finger 31m causes the tip of the insulating tape 17 to bite and the finger 31g is arrowed in that state. Sliding movement in the g direction. As a result, the insulating tape 17 is released from the reel 31a. The sliding distance in the arrow g direction of the finger portion 31a is equal to the length of the fusion portion 13b. Of course, the sliding distance can be adjusted.

If the insulating tape 17 is pulled by a predetermined length, as shown in Fig. 7C, the movable block 31w is moved in the direction of the arrow m, and at the same time, the tape support 33b to be described below is moved to the lower portion of the insulating tape 17. Position on the substrate to support the insulating tape 17. The tape support part 33b is one component of the tape transfer part 33 (Fig. 6).

In any case, if the movable block 31w is moved in the direction of the arrow m and the tape support part 33b supports the insulating tape 17, the tape pressing member 31q is lowered so that the tape pressing member 31q is the insulating tape 17. ) To the support block (31v) side.

Subsequently, the cutter 31s is lowered to cut the insulating tape 17 as shown in FIG. 7D. The portion cut by the blade 31t is a gap between the movable block 31w and the tape support portion 33b. In addition, since the tape pressing member 31q fixes the insulating tape 17 while the blade 31t is lowered and the insulating tape 17 is cut, there is no movement of the insulating tape.

After the cutting of the insulating tape 17 is completed, the fingers 31m are opened, and the cut insulating tape 17 is directed toward the secondary battery 11 waiting on the tape support part 33b (Fig. 8). Arrow in the direction of a). At the same time, the cutter 31s and the tape pressing member 31q are raised at the same time, and the movable block 31w returns to the arrow n direction.

As the movable block 31w moves in the direction of the arrow n, the distal end portion of the insulating tape 17 protrudes from the movable block 31w, and the finger 31m can pull the distal end portion of the insulating tape 17. will be.

Returning to FIG. 6 again, the description will be continued.

The tape transfer part 33 is interlocked with the tape supply part 31. That is, when the tape supply part 31 cuts the insulating tape 17 to a predetermined length, the tape supply part 31 transfers the insulating tape 17 to the secondary battery 11 which is waiting.

The tape transfer section 33 includes a frame 33e for reciprocating itself horizontally along the frame transfer rail 33f, a horizontal actuator 33d for reciprocating the frame 33e, and the frame 33e. A vertical actuator 33c installed at an upper end of the c), a horizontal plate 33a vertically raised and lowered by the vertical actuator 33c, and a fixed width fixed to a distal end of the horizontal plate 33a. It consists of a tape support part 33b extending in the longitudinal direction of the tape 17.

The length of the tape support part 33b is equal to the length of the insulating tape 17 to be cut and the width is equal to or larger than the insulating tape 17. In particular, the horizontal plate 33a is installed to be replaceable to the vertical actuator 33c. Therefore, when the required cutting length of the insulating tape 17 is changed, it is replaced with the horizontal plate 33a having the tape support part 33b of another length. In addition, the conveying direction of the frame 33e is orthogonal to the conveying direction of the conveying head 31k.

As a result, the tape support part 33b is capable of horizontal vertical movement in the arrow a direction and the b direction or the opposite direction.

8 is a perspective view illustrating a pouch support part 41 of the first taping part according to an exemplary embodiment of the present invention.

Basically, the pouch support part 41 supports the upper surface of the fusion part 13a downward when the tape support part 33b attaches the insulating tape 17 to the bottom surface of the fusion part 13a. Make sure the insulating tape is bonded.

The pouch support part 41 is fixed to the other side of the frame 29, two guide rods (41f) horizontally extended and spaced from each other, guided by the guide rod (41f) and guide rods A reciprocating block 41p movable in an extension direction of 41f, and a horizontal actuator 41e fixed to the lower portion of the reciprocating block 41p.

The cylinder 41m of the horizontal actuator 41e is fixed to the reciprocating block 41p, and the operation rod 41k is indirectly fixed to the guide rod 41f via the connecting plate 41g. The operation rod 41k is fixed to the frame 29 through the connecting plate 41g and the guide rod 41f.

Therefore, when the horizontal actuator 41e operates, the operating rod 41k is fixed, and the cylinder 41m reciprocates in the direction of the guide rod 41f with the reciprocating block 41p.

In addition, the pouch support part 41 includes a vertical actuator 41c fixed perpendicularly to the reciprocating block 41p, a pair of lifting members 41d that are lifted by the vertical actuator 41c, and the lifting member. A horizontal lifting bar 41a at which both ends thereof are fixed to a lower end of 41d, and a tape pressing portion 41b fixed at the lower side of the lifting bar 41a.

The tape pressing portion 41b is a horizontal member made of acetal or synthetic resin. The tape pressing portion 41b moves in the arrow d direction when the tape support portion 33b enters the arrow a direction, and descends when the tape support portion 33 rises in the arrow b direction.

As a result, the lifting bar 41a is capable of linear movement in the direction of arrow d and c or vice versa by the operation of the horizontal actuator 41e and the vertical actuator 41c.

9 is a view illustrating an operation principle of the first taping unit.

As shown in FIG. 9A, when the first transfer plate 23 arrives at the lower side of the elevating bar 41a while supporting the secondary battery 11, the tape support part 33b moves in the arrow a direction. Move to and located in the vertical lower portion of the fusion portion (13b). At this time, of course, the insulating tape 17 is placed on the upper surface of the tape support (33b).

While the tape support portion 33b moves to the vertical lower point of the fusion portion 13b, the tape pressing portion 41b also moves horizontally along the arrow d direction to reach the vertical upper portion of the fusion portion 13b. As shown in Fig. 9B, the tape pressing portion 41b and the tape supporting portion 33b are located above and below the vertical portion of the fusion portion with the fusion portion 13b therebetween.

In this state, as shown in Fig. 9C, the tape support part 33b is raised to adhere the insulating tape 17 to the bottom of the fusion part 13b, and at the same time, the tape pressing part 41b causes the fusion. By supporting the portion 13b downward, the insulating tape 17 is attached to the bottom surface of the fusion portion 13b.

At this time, only the widthwise half portion of the insulating tape 17 is bonded to the bottom surface of the fusion portion 13b, and the other half portion is not bonded.

When the taping is completed on the one fusion portion 13b of the secondary battery 11 through the above process, the driving shaft 24b is rotated 180 degrees to bond the insulating tape 17 to the opposite fusion portion 13b in the same manner. Let's do it.

After the insulating tape 17 is primary taped on both sides of the secondary battery 10, the secondary battery 10 is transferred to the second transfer plate 39. The movement of the secondary battery 10 is performed by the transfer part 35.

10 is a perspective view of the transfer unit shown in FIG. 3.

As shown in the drawing, the transfer part 35 includes a guide rail 35a connecting the first transfer rail 21 and the second transfer rail 37, and is supported by the guide rail 35a to reciprocate. A horizontal slider 35e, a vertical slider 35f linked up and down to the horizontal slider 35e, and a vertical actuator 35c for driving the vertical slider 35f in the vertical direction.

In addition, the lifting frame 35d is fixed to the vertical slider 35f. The lifting frame 35d moves up and down with the vertical slider 35f, and has an actuator 35 at its lower end.

The actuator 35b has a block cylinder 35g and a plurality of actuating rods 35h extending horizontally in both directions of the cylinder 35g. The working rod 35h is simultaneously extruded from the cylinder 35g or simultaneously pressed into the cylinder.

A pickup finger 35k is provided below the operation rod 35h. The pickup fingers 35k face each other and are simultaneously opened in the direction of the arrow t or narrowed in the opposite direction. As a result, the pick-up finger 35k lifts the secondary battery 11 waiting on the first transfer plate 23 by the operation of the horizontal slider 35e, the vertical slider 35f, and the actuator 35b. It can be put down on the plate 39.

FIG. 11 is a perspective view illustrating the second transfer plate and the second carrier illustrated in FIG. 3, and FIG. 12 is a side view illustrating a state in which a secondary battery is loaded on the second transfer plate illustrated in FIG. 11.

Referring to the drawings, it can be seen that the second carrier rail 37 is provided with a second carrier 40 to reciprocate along the longitudinal direction of the second transfer rail 37. In addition, a second transfer plate 39 is horizontally mounted on the second carrier 40.

The second transfer plate 39 is a place where the secondary taping process proceeds and horizontally supports the secondary battery 11 during the secondary taping process. The second transfer plate 39 has a planar shape of a square plate, but is wider than the first transfer plate 23. At both ends in the width direction of the second transfer plate 39, there is provided a support surface portion 39a for supporting the fusion portion 13a and the insulating tape 17 on its upper surface.

In addition, the bottom portion of the second transfer plate 39 is provided with a groove portion 39b into which the pickup finger 35k is inserted. The groove 39b is a groove in which the pickup finger 35k descends when the pickup finger 35k places the secondary battery 11 on the second transfer plate 39.

FIG. 13 is a perspective view of the secondary taping unit 43 shown in FIG. 3.

The secondary taping unit 43 is disposed with the second transfer rail 37 interposed therebetween, and operates immediately after the second transfer plate 39 and the secondary battery 11 are positioned therebetween.

The secondary taping portion 43 is disposed on the left and right in the longitudinal direction of the second transfer rail 37 and faces each other, and is positioned above the respective frames 43a, and the vertical actuator (43s of FIG. 14A). Driving the horizontal sliding plate 43b and the horizontal sliding plate 43k reciprocated by the guide rail 43c provided on the upper and lower portions of the lifting plate 43b, and the horizontal sliding plate 43k. A horizontal actuator 43d is included. The cylinder 43e of the horizontal actuator 43d is fixed to the elevating plate 43b and the operating rod 43f is connected to the horizontal sliding plate 43k.

In addition, a rotating plate 43m is provided at an upper portion of the horizontal sliding plate 43k. The rotating plate 43m is fixed to both ends of the rotating shaft 43q supported by the fixing block 43p at the upper portion of the horizontal sliding plate 43k, and is rotated up and down based on the rotating shaft 43q. do.

In addition, a pressure bar 43r is installed at the tip end of each of the pivot plates 43m. The pressurizing rod 43r is an annular bar having a constant diameter and is rotatable in a state in which both ends thereof are supported by the rotating plate 43m.

Reference numeral 43n is a spring. The spring 43n raises the rear end of the rotating plate 43m upward, and serves to elastically support the pressing rod 43r at the front end thereof. The pressure rod 43r is always elastically biased downward by the spring 43n.

14A to 14E are views for explaining the principle of operation of the secondary taping unit.

As shown in Fig. 14A, the elevating plate 43b maintains an ascending state as usual. Therefore, the pressure bar 43r is located at an altitude higher than the support surface portion 39a of the second conveyance plate 39, and does not prevent the second conveyance plate 39 from sliding into and out of the frame 43a, for example. .

In any case, when the second transfer plate 39 enters between the frames 43a for secondary taping, the lifting plate 43b is lowered by the operation of the vertical actuator 43s (see Fig. 14B). The lowering of the elevating plate 43b continues until the pressure bar 43r reaches the support surface portion 39a.

When the pressurizing rod 43r reaches the support surface portion 39a, the secondary battery 11 that has been moved from the first transfer plate 23 by the transfer portion 35 is formed as shown in Fig. 14C. 2, the feed plate 39 is lowered vertically. At this time, the insulating tape 17 is attached to the bottom of the fusion portion 13a of the secondary battery 11 as a matter of course. In particular, in the insulating tape 17, the widthwise half portion, which is not attached to the fusion portion 13a, is located vertically above the pressure bar 43r.

Therefore, when the secondary battery 11 is completely seated on the second transfer plate 39, as shown in FIG. 14D, the widthwise half of the insulating tape 17 is caught by the pressure bar 43r and bent upwards. It becomes a state.

Half of the width direction of the insulating tape 17 bent to the upper portion, as the pressure actuator 43r is moved in the direction of the arrow w by operating the horizontal actuator 43d, it is spread on the pressure rod 43r and is fused. It is attached to the upper surface of 13a.

Once the insulating tape 17 is attached to the upper surface of the fusion portion 13a, the pressure rod 43r is rolled back and forth two to three times to finish the secondary tapering of the insulation tape 17 to the fusion portion 13a. (See FIG. 14E)

When the secondary taping is completed through the above process, the vertical actuator 43s is operated to raise the lifting plate 43b. When the lifting plate 43b is lifted up and the pressure rod 43r is separated from the secondary battery 11, the second transfer plate 39 moves away from the secondary taping portion 43 to the pressing portion 45.

The pressing part 45 serves to confirm the taping by pressing the fusion part 13a of the secondary battery 11, that is, the first and second secondary taping parts once more.

15 is a side view of the crimping unit shown in FIG. 3.

Referring to FIG. 15, the crimping unit 45 is supported by the frame 45a and the frame 45a provided on the upper portion of the second conveying rail 37 and of the second conveying plate 39. It can be seen that it is composed of a pair of upper actuators 45b positioned at the upper portion of the transport path, and a pair of lower actuators 45c positioned at the lower portion of the transport path.

The upper actuator 45b is disposed vertically with its working rod facing downward and has a pressing member 45d at the lower end of the working rod. The pressing member 45d is positioned vertically above the support surface portion 39a of the second transfer plate 39 and descends to press the taping portion downward.

In addition, the lower actuator 45c is also vertically fixed and has a supporting member 45e at the upper end of the working rod. The lower actuator 45c is disposed so that the operation rod is directed upward. The supporting member 45e serves to support the second conveying plate 39 horizontally when the upper actuator 45b operates.

As a result, the secondary battery 11 stops at the crimping part 45 in the state of being loaded on the second transfer plate 39, and is compressed in the crimping part 45 and then exits to the outside. The secondary battery 11 passing through the crimping unit 45 is collected by the worker as the taping is completed, and then proceeds to the next process.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

11: Secondary battery 13: Pouch 13a: Fusion part
15: electrode tab 17: insulating tape 19: automatic taping device
21: First feed rail 23: First feed plate 23a: linear protrusion
23b: groove 23c: driving shaft fixing unit 24: first carrier
24a: motor 24b: drive shaft 29: frame
31: Tape supply part 31a: Reel 31c: Tape guide
31d: support part 31e: cutting part 31f: finger feed rail
31g: Fingering 31k: Feeding Head 31m: Fingering
31n, 31p: Actuator 31q: Tape pressurizing member 31r: Actuator
31s: cutter 31t: blade 31v: support block
31w: movable block 33: tape transfer part 33a: horizontal plate
33b: Tape support 33c: Vertical actuator 33d: Horizontal actuator
33e: frame 33f: frame feed rail 35: transfer section
35a: guide rail 35b: actuator 35c: vertical actuator
35d: Lifting frame 35e: Horizontal slider 35f: Vertical slider
35 g: Cylinder 35 h: Operating rod 35 k: Pick-up finger
37: 2nd transfer rail 39: 2nd transfer plate 39a: ground portion
39b: groove 40: second carrier 41: pouch support
41a: Lifting bar 41b: Tape presser 41c: Vertical actuator
41d: Lifting member 41e: Horizontal actuator 41f: Guide rod
41g: Connecting plate 41k: Operating rod 41m: Cylinder
41p: reciprocating block 43: secondary taping section 43a: frame
43b: Platform 43c: Guide rail 43d: Horizontal actuator
43e: Cylinder 43f: Operating rod 43k: Horizontal sliding plate
43m: Swivel plate 43n: Spring 43p: Fixed block
43q: Rotary shaft 43r: Push rod 43s: Vertical actuator
45: crimping section 45a: frame 45b: upper actuator
45c: Lower Actuator 45d: Pressure member 45e: Support member
47: Alignment

Claims (9)

It is for attaching insulation tape to the fusion part located at the edge of pouch of pouch type secondary battery.
A first carrier reciprocating along the first conveyance rail extending in the longitudinal direction;
A first transport plate positioned on the first carrier and horizontally supporting a secondary battery to be taped;
A motor configured to rotate the first transfer plate within a range of 180 degrees at a lower portion of the first transfer plate while being mounted on the first carrier;
A first taping part to attach a tape having a predetermined width to a bottom surface of the fusion part of the secondary battery seated on the first transfer plate, and attach a half of the tape in a width direction thereof;
A second carrier reciprocating along a second conveyance rail extending in a longitudinal direction as interlocked with the first carrier;
A second transfer plate mounted on the second carrier and horizontally supporting the tapered secondary battery;
A transfer unit configured to move the secondary battery having completed primary taping by the primary taping unit from the first transfer plate to the second transfer plate;
The secondary battery of the lithium ion secondary battery, characterized in that it comprises a secondary taping portion for lifting the other half of the tape attached to the bottom surface of the fusion portion of the secondary battery seated on the second transfer plate to fold and adhere to the upper surface of the fusion portion Pouch automatic taping device. The method of claim 1,
The pouch automatic taping apparatus for a lithium ion secondary battery, characterized in that the second taping portion is handed over to the secondary battery is completed, the pressing unit for pressing the tape adhered to the fusion unit. 3. The method according to claim 1 or 2,
The first transfer plate is;
It takes the form of a square plate and has a linear protrusion protruding upward at its edge to abut a portion of the bottom of the fusion portion of the pouch,
The secondary battery protrudes to the outer region of the first transport plate beyond the linear protrusion in a state in which the secondary battery is horizontally seated on the first transport plate.
The second transfer plate is;
Take a form of a square plate and the upper edge of the pouch automatic taping device of the lithium ion secondary battery characterized in that it comprises a support surface for supporting the fusion portion horizontally. The method of claim 3, wherein
The primary taping unit;
A tape supply unit which unwinds and cuts the tape by a predetermined length from the reel on which the tape to be used is wound;
A tape conveying part for moving a tape of a predetermined length supplied from the tape supplying part toward the first conveying plate side to reach the bottom of the fusion part protruding outside the linear projection of the first conveying plate;
It operates in conjunction with the tape transfer unit, the pouch automatic of the lithium ion secondary battery characterized in that it comprises a pouch support for supporting the tape to adhere to the fusion to the tape when the tape contact the bottom of the fusion by the tape transfer unit Taping device. The method of claim 4, wherein
The tape supply unit;
A frame for rotatably supporting the reel;
A finger for reciprocating in the horizontal direction while being supported by the frame, releasing the tape by biting the leading end of the tape and moving away from the reel;
A support block positioned between the reel and the finger and horizontally supporting the tape in a pulled state by the finger;
And a blade for cutting the tape in a state spanning the upper surface of the support block while being pulled by the finger. 6. The method of claim 5,
The pouch of the lithium ion secondary battery is further provided with a tape pressing member which is lifted by an actuator on the upper portion of the support block and presses the tape toward the support block side before the blade cuts the tape to prevent the movement of the tape. Automatic taping device. 6. The method of claim 5,
The tape transfer unit;
A tape support part which enters between the support block and the finger to support the tape before the tape is cut;
And an actuator configured to vertically and horizontally move a tape support part on which the tape is placed on the upper surface of the tape, and to move the tape support to the bottom surface of the fusion part. 2. The method of claim 3, wherein
The secondary taping unit;
A frame facing the second transfer rail;
An elevating plate installed on an upper portion of each of the frames and descending after a second transfer plate arrives between the frames;
A horizontal sliding plate provided on each lifting plate and moving forward and backward with respect to the second transfer plate;
A horizontal actuator for advancing and moving the horizontal sliding plate,
Rotating plate is provided to be rotated up and down on the horizontal sliding plate,
A pressurizing rod which is horizontally supported at the tip of each pivot plate and positioned at the support surface of the second transfer plate when the lift plate descends;
It includes elastic support means for elastically pressing the pressure bar to the support surface portion,
The tape having half attached to the fusion portion of the secondary battery is caught by the pressure rod in the process of being seated on the second transfer plate and is bent upwards, and the pressure rod is fused by the horizontal actuator. Pouch automatic taping device of the lithium ion secondary battery, characterized in that the cover is attached to the upper surface of the welding rod when moving to the portion. The method of claim 2,
The pressing unit;
A frame positioned on the second conveying rail;
An actuator having a pressure head mounted on the frame and lowered when the secondary battery supported by the second transfer plate reaches the inside of the frame to press the taping portion of the secondary battery to the support surface portion of the second transfer plate. Pouch automatic taping device of a lithium ion secondary battery comprising a.

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