Abstract
A secondary battery electrode film and separator supply device configured to: replace a bobbin when an electrode separator is used up by automatically extracting an empty bobbin from a spool, mounting the empty bobbin on a side of a bobbin mount of a bobbin changer, changing the position of a new bobbin mounted on another side by rotating the bobbin mount 180 degrees, and then moving and mounting the new bobbin on the spool; automatically extracting an end of a wound electrode separator through vacuum suction and connecting the end to another electrode separator; and feed a replacing material roll to a moving spool, cut a finishing tap at an end of a material by a predetermined length, and then automatically connect a new separator end of the replacing material roll and an in-use separator end through taping.
Claims
1. A secondary battery electrode film and separator supply device comprising a bobbin extractor and shifter installed at a first side on one table and a bobbin changer installed at a second side, wherein the bobbin extractor and shifter includes a spool for mounting a bobbin, an empty bobbin mounted and used up on the spool, a pusher pushing the empty bobbin and then returning to an initial position, a deliverer for receiving the empty bobbin and then moving, a rail installed on a bottom to move the deliverer, and a support for supporting the rail, and the bobbin changer includes a straight cylindrical bobbin mount for fitting a new bobbin on a first side and an empty bobbin on a second side for delivery, a guide installed at the middle of the bobbin mount to separate bobbins while restricting movement of an empty bobbin and a new bobbin, a turn table for rotating the bobbin mount 180 degrees, a rail for moving the turn table, and a support supporting the rail.
2. The secondary battery electrode film and separator supply device of claim 1, wherein several circular projections are rotatably installed on a surface of the bobbin mount to enable smooth movement of a bobbin.
3. The secondary battery electrode film and separator supply device of claim 2, wherein a pusher is configured to be able to rotate up and down and move left and right at a front end of a guide of the bobbin mount, a circular groove is formed at an end of the pusher to be fitted on the bobbin mount, the circular groove of the pusher is coupled to the bobbin mount to push a bobbin to a side, the pusher has been rotated outward not to interfere with the bobbin mount when the bobbin mount rotates 180 degrees, and when the bobbin mount finishes rotating 180 degrees, the pusher is coupled to the front end of the guide of the bobbin mount and pushes a bobbin to a side.
4. A secondary battery electrode film and separator supply device, in which a separator is wound on a bobbin and an adhesive sticker for fixing an end is bonded to the center of an end of the separator, comprising a pair of suctioner positioned ahead of both sides of the adhesive sticker bonded to the end of the electrode separator to pull an end through vacuum suction, a tow bar fixing the suctioners and moved by a cylinder, and a holder installed over and under the suctioners and holing and fixing the end of the electrode when the end is pulled to protrude by the suctioners.
5. The secondary battery electrode film and separator supply device of claim 4, wherein the adhesive sticker has a perforated line at a center and other perforated lines are formed over and under the perforated line, respectively, so when the suctioners pulls a separator through vacuum suction, the perforated lines of the adhesive sticker bonded to a center of an end of the separator are torn and separated.
6. A secondary battery electrode film and separator supply device, wherein an empty bobbin and a new bobbin are rotatably installed at left and right of a machine center and adhesive films are rotatably installed at upper ends of the empty bobbin and the new bobbin, and the secondary battery electrode film and separator supply device comprises: holders installed up and down to hold and move the adhesive films; and a separator suctioner, an adhesive film suctioner, a separator cutter for cutting a separator, and an adhesive film cutter for cutting an adhesive film.
7. The secondary battery electrode film and separator supply device of claim 6, wherein the adhesive films are inaccurately attached to each other such that both ends of adhesive surfaces of the adhesive films are exposed, and a separator is bonded to the exposed adhesive surfaces.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0025] FIG. 1 is a perspective view showing the entire configuration of the present disclosure.
[0026] FIG. 2 is a perspective view showing operation of bobbin shifter moving to take an empty bobbin of the present disclosure.
[0027] FIG. 3 is a perspective view showing operation of taking and delivering an empty bobbin of the present disclosure to a bobbin changer.
[0028] FIG. 4 is a perspective view showing operation in which an empty bobbin is mounted and moved on the bobbin changer of the present disclosure.
[0029] FIG. 5 is a perspective view showing operation of the bobbin changer moving a new bobbin forward while moving an empty bobbin rearward by rotating 180 degrees.
[0030] FIG. 6 is a perspective view showing operation of moving a new bobbin fed through 180-degree rotation in the present disclosure.
[0031] FIG. 7 is a perspective view showing operation of delivering a new bobbin of the present disclosure to the bobbin shifter.
[0032] FIG. 8 is a perspective view showing operation of the bobbin shifter moving to replace a bobbin after receiving a new bobbin.
[0033] FIG. 9 is a perspective view illustrating operation of mounting a new bobbin delivered to the bobbin shifter of the present disclosure onto a spool by pushing it with a pusher.
[0034] FIGS. 10 to 16 relate to automatic extraction of an electrode separator of the present disclosure.
[0035] FIG. 10 is a perspective view of an automatic extractor of the present disclosure.
[0036] FIG. 11 is a perspective view showing the state in which a holder is positioned at an electrode separator end of the present disclosure.
[0037] FIG. 12 is a plan view showing the positions of a separator, a suctioner, and a holder of the present disclosure.
[0038] FIG. 13 is a view showing the state in which the suctioner of the present disclosure has suctioned an end portion of a separator.
[0039] FIG. 14 is a view showing the state in which an adhesive sticker at the center has been separated by the suctioner of the present disclosure suctioning and pulling a separator.
[0040] FIG. 15 is a perspective view showing the state in which an end portion of a separator is held and fixed by an up-down holder of the present disclosure.
[0041] FIG. 16 is a view showing an adhesive sticker of the present disclosure.
[0042] FIGS. 17 to 31 relate to automatic taping connection of an electrode separator end of the present disclosure.
[0043] FIG. 17 is a perspective view in which a separator is prepared ahead and an adhesive film is prepared behind in the present disclosure.
[0044] FIG. 18 is a front view excluding the separator and the suctioner of the present disclosure.
[0045] FIG. 19 is a front view showing operation of holding ends of a pair of left and right adhesive films by a pair of left and right holders B moving up in the present disclosure.
[0046] FIG. 20 is a front view showing the state in which a holder pulls an adhesive film by moving down and a holder A fixes the upper portion of the adhesive film in the present disclosure.
[0047] FIG. 21 is a front view showing the state in which the suctioner of the present disclosure has suctioned and held an adhesive film.
[0048] FIG. 22 is a front view showing a cutting process with the suctioner holding an adhesive film in the present disclosure.
[0049] FIG. 23 is a front view showing a moving-down state of the suctioner after cutting the adhesive film of FIG. 22.
[0050] FIG. 24 is a front view showing operation of bonding two sheets of adhesive films by left and right suctioners moving to the center in the present disclosure.
[0051] FIG. 25 is a front view showing the state in which the adhesive surface of a non-overlap portion is exposed when two sheets of adhesive films are inaccurately bonded in the present disclosure.
[0052] FIG. 26 is a front view showing operation of connecting a new separator to an end of a completely used separator of the present disclosure.
[0053] FIG. 27 is a front view of an assembly including an adhesive film and a separator suctioner of the present
DISCLOSURE
[0054] FIGS. 28 to 31 are front views when one separator connection has been finished by inaccurately bonding both surfaces of an adhesive film to a suctioner and sequentially bonding a right separator and a left separator to an exposed adhesive surface.
DETAILED DESCRIPTION OF THE INVENTION
[0055] Hereafter, embodiments of the present disclosure are described with reference to the accompanying drawings.
[0056] FIG. 1 is a perspective view showing the entire configuration of the present disclosure, FIG. 2 is a perspective view showing operation of bobbin shifter moving to take an empty bobbin of the present disclosure, FIG. 3 is a perspective view showing operation of taking and delivering an empty bobbin of the present disclosure to a bobbin changer, FIG. 4 is a perspective view showing operation in which an empty bobbin is mounted and moved on the bobbin changer of the present disclosure, FIG. 5 is a perspective view showing operation of the bobbin changer moving a new bobbin forward while moving an empty bobbin rearward by rotating 180 degrees, FIG. 6 is a perspective view showing operation of moving a new bobbin fed through 180-degree rotation in the present disclosure, FIG. 7 is a perspective view showing operation of delivering a new bobbin of the present disclosure to the bobbin shifter, FIG. 8 is a perspective view showing operation of the bobbin shifter moving to replace a bobbin after receiving a new bobbin, and FIG. 9 is a perspective view illustrating operation of mounting a new bobbin delivered to the bobbin shifter of the present disclosure onto a spool by pushing it with a pusher, in which A bobbin shifter 20 is installed at a first side on one table and a bobbin changer 30 is installed at a second side. The bobbin shifter 20 is composed of a spool 1 for mounting a bobbin, an empty bobbin 2 mounted and used up on the spool 1, a pusher 3 pushing the empty bobbin 2 and then returning to the initial position, a deliverer 4 for receiving the empty bobbin 2 and then moving, a rail 5 installed on the bottom to move the deliverer 4, and a support 6 for supporting the rail 5.
[0057] The bobbin changer 30 installed at the second side on one table is composed of a straight cylindrical bobbin mount 7 for fitting a new bobbin on a first side and an empty bobbin on a second side for delivery, a guide 8 installed at the middle of the bobbin mount 7 to separate bobbins while restricting movement of an empty bobbin and a new bobbin, a turn table 9 for rotating the bobbin mount 7 180 degrees, a rail 10 for moving the turn table 9, and a support 11 supporting the rail 10.
[0058] When the empty bobbin 2 is taken from the spool 1 or is delivered to be mounted on the bobbin mount 7, or when they are operated in the opposite way, the bobbin is taken or delivered by pushing the bobbin with pushers 3, 4b, and 7a that are each driven by a cylinder.
[0059] The pusher 7a has a circular grooved end, is coupled to a circular rod of the bobbin mount 7, and is configured to push a bobbin to a side and to be able to rotate up and down. The pusher 7a has been rotated outward when the bobbin mount 7 is rotated 180 degrees, and is coupled back to the bobbin mount 7 ahead of a guide 8 when the bobbin mount 7 finishes rotating 180 degrees to be able to push a bobbin. The pusher 7a can be moved up and down and left and right by a cylinder.
[0060] The bobbin is fitted and fixed with a circular hole at the center of the bobbin horizontally aligned with the axis of the spool 1 or the circular bobbin mount 7.
[0061] In the figures, unstated reference numeral 8 indicates a guide for separating an empty bobbin 2 and a new bobbin 12 and unstated reference numeral 15 indicates a support for supporting the spool 1 and surrounding parts, and several circular projections are rotatably installed on the bobbin mount 7, thereby enabling smooth movement of a bobbin.
[0062] Operation of the present disclosure having this configuration is described.
[0063] According to the present disclosure, in the state in which the deliverer 4 of the bobbin shifter 20 positioned at a predetermined position at a side, as in FIG. 1, the deliverer 4 moves left on the rail 5 in the figures and stops accurately ahead of the spool 1 of an empty bobbin 2 to replace the empty bobbin 2 mounted on the spool 1.
[0064] Accordingly, when the deliverer 4 is positioned at the empty bobbin 2 mounted on the spool 1, the pusher 3 installed at the spool 1 pushes the empty bobbin 2 out of the spool 1 and simultaneously fits the empty bobbin 2 onto a cylindrical shaft 4a of the deliverer 4.
[0065] The deliverer 4 receiving the empty bobbin 2 moves on the rail 5 to the right in the figures and stops at a predetermined position, as in FIG. 3, and the empty bobbin 2 is fitted onto the bobbin mount 7 of the bobbin changer 30 with the deliverer 4 at the predetermined position. In this case, the pusher 4b installed at the deliverer 4 pushes the empty bobbin 2 out of the cylindrical shaft 4a and simultaneously fits and fixes the empty bobbin 2 on the bobbin mount 7.
[0066] Accordingly, as in FIG. 4, the bobbin mount 7 moves on the rail 10 to the end with the empty bobbin 2 thereon, and in this case, the pusher 7a rotates upward, thereby not interfering with movement of the bobbin mount 7. When the bobbin mount 7 is rotated 180 degrees after moving to the end of the rail 10, the empty bobbin 2 and a new bobbin 12 on the bobbin mount 7 are switched.
[0067] That is, as in FIG. 5, the empty bobbin 2 at the front is moved to the rear and the new bobbin 12 at the rear is moved to the front.
[0068] As in FIG. 6, when the bobbin mount 7 of the bobbin changer 30 moves on the rail 10 back to the left in the figures with the empty bobbin 2 and the new bobbin 12 switched by rotation of the bobbin mount 7, the pusher 7a pushes and fixes the one new bobbin 12 on the cylindrical shaft 4a of the deliverer 4 stopped at the predetermined position.
[0069] In this case, the pusher 7a is positioned up and moves down, thereby pushing the new bobbin 12 to a side with the cylindrical groove fitted on the front end of the guide 8. The pusher 7a can be moved up and down, and left and right by a cylinder.
[0070] Accordingly, as in FIG. 8, the deliverer 4 moves on the rail 5 to the left and then stops at a predetermined position to mount the new bobbin 12 on the spool 1, and, as in FIG. 9, the pusher 4b pushes and fixes the new bobbin 12 on the spool 1.
[0071] After the deliverer 4 of the bobbin shifter 20 mounts the new bobbin 12 on the spool 1, the deliverer 4 moves back on the rail and then stops and stands by at a predetermined position, as in FIG. 1.
[0072] Meanwhile, FIGS. 10 to 16 show a process of automatically extracting an end of an electrode separator for a secondary battery of the present disclosure.
[0073] FIG. 10 is a view showing the entire configuration of automatic extraction of an end of an electrode separator, FIG. 11 is a perspective view showing the state in which a holder is positioned at an electrode separator end of the present disclosure, FIG. 12 is a plan view showing the positions of a separator, a suctioner, and a holder of the present disclosure, FIG. 13 is a view showing the state in which the suctioner of the present disclosure has suctioned an end portion of a separator, FIG. 14 is a view showing the state in which an adhesive sticker at the center has been separated by the suctioner of the present disclosure suctioning and pulling a separator, FIG. 15 is a perspective view showing the state in which an end portion of a separator is held and fixed by an up-down holder of the present disclosure, and FIG. 16 is a view showing an adhesive sticker of the present disclosure. As shown in the figures, a separator 32 is wound on a bobbin 31 and an adhesive sticker 33 is bonded to an end, an automatic extractor is composed of a suctioner 34 positioned ahead of both sides of the adhesive sticker 33 to perform vacuum suction by a cylinder, etc., a tow bar 35 for fixing the suctioner 34, and a holder 36 installed over and under the front end of the suctioner 34 to pull and fix an end of the separator 32 over and under the end when the end is pulled to protrude, and unstated reference numeral 37 indicates a separator end in the figures.
[0074] However, the adhesive sticker 33 has a perforated line 38 at the center and other perforated lines 39 are formed over and under the perforated line 38, respectively, so when the separator 32 is pulled by vacuum suction, the perforated lines 38 and 39 of the adhesive sticker 33 are easily torn and separated.
[0075] In FIGS. 10 to 16, an electrode separator 32 is wound on the bobbin 31. The adhesive sticker 33 is attached to an end of the electrode separator 32 and the end is fixed. The separator end 37 is detached and both ends of the end are held and connected to another electrode separator to be used.
[0076] When an end of the electrode separator 32 is separated and connected to another electrode separator to be used, as described above, it is usually difficult to separate the end of the electrode separator 32. Accordingly, in the present disclosure, the perforated line 38 is formed at the center of the adhesive sticker 33 not as a simple adhesive sticker by improving the structure of the adhesive sticker 33, and another perforated line 39 is formed over and under the perforated line 38 so that when the end 37 is pulled, the end is separated while the perforated lines 38 and 39 of the adhesive sticker 33 are easily torn.
[0077] That is, when the suctioner 34 is positioned ahead of both sides of the end 37 of the separator 32, as in FIG. 12, and the end is vacuum-suctioned by the suctioner 34, as in FIG. 13, both sides of the end 37 of the separator 32 are pulled out. In this case, as in FIG. 14, the adhesive sticker 33 attached to the center of the end 37 is easily torn by the perforated lines 38 and 39 and the entire end 37 is pulled up.
[0078] In this case, the end 37 of the electrode separator 32 is set to be automatically positioned at the suctioner 34 by a sensor, etc.
[0079] When the end 37 of the separator 32 is pulled to protrude, the holder 36 installed over and under the separator end 37 is driven by a motor or a cylinder, thereby holding and firmly fixing the end 37.
[0080] Accordingly, it is possible to make separators be continuously supplied by immediately pulling up and connecting the end 37 of the separator 32, which has been pulled by vacuum suction, to another electrode separator.
[0081] Meanwhile, FIGS. 17 to 31 show operation of automatically taping an end of an electrode separator for a secondary battery of the present disclosure.
[0082] FIG. 17 is a perspective view in which a separator is prepared ahead and an adhesive film is prepared behind in the present disclosure, in which an empty bobbin 41 and a new bobbin 42 are rotatably installed at the left and right of a center, adhesive films 43 and 44 are rotatably installed at the upper ends of the empty bobbin 41 and the new bobbin 42, an adhesive film holder A 45 and an adhesive film holder B 46 are installed, and a separator suctioner 47, an adhesive film suctioner 48, a separator cutter 49 for cutting a separator, and an adhesive film cutter 50 for cutting an adhesive film are installed, in which unstated reference numeral 51 indicates a separator.
[0083] In FIGS. 17 to 31, in order to automatically bond and connect a new separator to a separator that is almost completely used using an adhesive film, two wound adhesive films 43 and 44 installed at both sides of the upper end of a body are cut and inaccurately attached to a separator 51 and the separator 51 is connected to each of exposed adhesive surfaces having adhesion, whereby one continuous separator 51 can be achieved.
[0084] FIG. 18 is a front view excluding the separator 51 and the separator suctioner 47 in the present disclosure, and shows a process of cutting and bonding a pair of adhesive films 43 to each other.
[0085] A pair of left and right holders B 46 of the present disclosure move up and hold ends of a pair of left and right adhesive films 43 and 44, as in FIG. 19.
[0086] Then, as in FIG. 20, the holder B 46 moves down and pulls the adhesive film 43 and the upper portion of the adhesive film 43 is held and fixed by the holder A 45.
[0087] In this state, when the suctioner 37 suctions and holds the adhesive film 43, as in FIG. 21, and the cutter 50 cuts the adhesive film 43 and then moves back, as in FIG. 22, the holder B 46 opens and releases the adhesive film 43.
[0088] Accordingly, though not shown in figures, the holder B 46 moves back not to interfere with the adhesive film 43 and the cut adhesive film 43 remains attached to the separator suctioner 47 by air suction force.
[0089] Further, with the cut adhesive film 43 attached to the separator suctioner 47, as in FIG. 3, the separator suctioner 47 is slightly moved down, and the left and right suctioners 47 and 48 are moved to the center toward each other, as in FIG. 24, whereby the two sheets of adhesive films 43 and 44 are attached to each other.
[0090] In this state, as in FIG. 25, since the two sheets of adhesive films 43 and 44 are inaccurately attached, the non-overlapping adhesives on the adhesive films 43 and 44 are exposed to the outside.
[0091] Further, right adhesive film suctioner 48 stops air suction and moves to the right as indicated by an arrow with the adhesive film 44 on the separator suctioner 47.
[0092] FIG. 26 enlarges and shows a separator joint in a dotted-line circle and shows operation of connecting a new separator to an end of an almost used-up separator 51, in which the separator suctioner 47 is moved forward to be positioned between the adhesive film 43 and the separator 51.
[0093] FIG. 27 is a front view including the separator and the separator suctioner 47 excluded in FIG. 19, in which a new bobbin 42 is prepared and a start end 54 of a new separator coming out from the new bobbin 42 is fitted and fixed between a presser 52 and a roller 53.
[0094] Then, as in FIGS. 28 and 29, the adhesive film suctioner 48 brings a right separator 51a in contact with an adhesive surface of the adhesive film 43 by pushing it in the direction of a left arrow, and then the separator suctioner 47 stops air suction and moves back.
[0095] Then, as in FIG. 30, the separator suctioner 47 attaches a left separator 51 to the adhesive surface of the adhesive film 43 by pushing it in the direction of a right arrow, whereby separators are bonded to both sides of the adhesive films 43 and 44 having adhesion.
[0096] Next, as in FIG. 31, the presser 52 shown in FIG. 27 is released and the left separator 51 is pulled, whereby the right separator 51a finishes being bonded to the adhesive film 43.
[0097] That is, the separator 51 and the separator 51a are suctioned and bonded to both adhesive surfaces of the adhesive film 43, respectively, by the suctioner 47, whereby they are supplied as one complete separator.
