KR102599538B1 - Winding apparutus for being used in manufacturing electrode of secondary battery - Google Patents

Abstract

The present invention includes a turret including a first winding core and a second winding core for winding fabric used in a secondary battery electrode manufacturing process; It is located on the opposite side of the second winding core with the stationary fabric fully wound around the first winding core and stopped, and is arranged to be moved toward the stationary fabric and placed in a working position or moved oppositely from the working position to be placed in a standby position. lack of support; an adsorption roll rotatably coupled to the support member and adsorbing an adhesive tape; And a cutter coupled to the upper limb support member so as to reciprocate in the width direction of the stationary fabric. It provides a winding device for a secondary battery electrode manufacturing process including a. When the support member is in the working position, the stationary fabric is sandwiched between the suction roll and the second winding core, and the cutter cuts the stationary fabric sandwiched between the suction roll and the second winding core. It is separated into a recovery part wound on the first winding core and a winding part to be wound on the second winding core, and the suction roll is rotated by the second winding core rotating in reverse, and the adhesive tape is attached to the end of the winding part. and adhered to the second winding core.

Description

Winding device for secondary battery electrode manufacturing process {WINDING APPARUTUS FOR BEING USED IN MANUFACTURING ELECTRODE OF SECONDARY BATTERY}

The present invention relates to a winding device for a secondary battery electrode manufacturing process that can be used in various processes for manufacturing electrodes of secondary batteries. More specifically, when a winding core that is winding a fabric first is fully wound, the fabric is wound into another bin. This relates to a winding device for the secondary battery electrode manufacturing process that automatically winds the winding core.

Secondary batteries are rechargeable batteries and are used as batteries for various devices such as cell phones, laptops, camcorders, and automobiles. And secondary batteries have a structure in which pre-manufactured electrodes (anode, cathode) and separators are alternately stacked, for example, an anode (cathode)/separator/cathode (anode)/separator/anode (cathode), etc.

The process for manufacturing the electrodes (anode, cathode) of the above secondary battery generally includes a coating process, a roll press process, a slitting process, a notching process, and a drying process, and each process is performed in a roll-to-roll method. Therefore, in each process, an unwinding device is used to unwind the fabric before the process (coating fabric, roll press fabric, slitting fabric, notching fabric, and drying fabric), and a winding device is used to wind the fabric after the process. In addition, in the winding device for each process, when a winding core that is winding the fabric first is full, an operation is required to have the fabric taken up by another empty winding core.

Registered Patent Publication No. 10-2215456 (Automatic film winding device) Registered Patent Publication No. 10-1960629 (Automatic film winding device) Registered Patent Publication No. 10-1752731 (Automatic cutting and winding method of optical film wound on winding core) Registered Patent Publication No. 10-1774445 (Automatic cutting and winding device for optical film wound on winding core)

Therefore, the present invention seeks to provide a technology that can automatically perform the above tasks required in a winding device in the process for manufacturing electrodes (anode, cathode) of secondary batteries.

The present invention includes a turret including a first winding core and a second winding core for winding fabric used in a secondary battery electrode manufacturing process; It is located on the opposite side of the second winding core with the stationary fabric fully wound around the first winding core and stopped, and is arranged to be moved toward the stationary fabric and placed in a working position or moved oppositely from the working position to be placed in a standby position. lack of support; an adsorption roll rotatably coupled to the support member and adsorbing an adhesive tape; And a cutter coupled to the upper limb support member so as to reciprocate in the width direction of the stationary fabric. It provides a winding device for a secondary battery electrode manufacturing process including a. When the support member is in the working position, the stationary fabric is sandwiched between the suction roll and the second winding core, and the cutter cuts the stationary fabric sandwiched between the suction roll and the second winding core. It is separated into a recovery part wound on the first winding core and a winding part to be wound on the second winding core, and the suction roll is rotated by the second winding core rotating in reverse, and the adhesive tape is attached to the end of the winding part. and adhered to the second winding core.

A suction plate located adjacent to the cutter and another cutter located on an opposite side of the cutter with the suction plate interposed may be coupled to the support member. In this case, when the support member is in the working position, the suction plate adsorbs the stationary fabric, and the another cutter cuts the stationary fabric together with the cutter to remove the sample portion adsorbed to the suction plate from the recovery area. Separate.

The suction plate is coupled to the support member so as to move back and forth in the width direction of the stationary fabric.

The winding device for the secondary battery electrode manufacturing process may further include an automatic adhesive tape supply device. In this case, the automatic adhesive tape supply device forms an adhesive tape fabric wound on an adhesive tape fabric roll located on one side of the longitudinal direction (width direction of the stationary fabric) of the suction roll with the adhesive tape, and forms the adhesive tape with the adhesive surface on the outer side. The process of positioning the suction roll within the suction area to face is automatically performed.

According to the present invention, the effect of adhering the fabric wound on a fully wound core to an empty core with an adhesive tape having only one side as an adhesive surface can be automatically performed in a winding device for a secondary battery electrode manufacturing process.

In addition, according to the present invention, an effect occurs in which samples of fabric that have undergone a secondary battery electrode manufacturing process can be automatically recovered.

In addition, according to the present invention, the adhesive tape can be automatically adsorbed to the adsorption area of the adsorption roll.

Figure 1 shows a winding device for a secondary battery electrode manufacturing process according to the present invention.
FIG. 2 is for explaining the operating process of the winding device shown in FIG. 1.
Figures 3 to 6 show the operating process of the automatic adhesive tape supply device for automatically supplying the adhesive tape of Figure 1 to the suction roll.

Hereinafter, preferred embodiments of the winding device for the secondary battery electrode manufacturing process according to the present invention will be described in detail with reference to the drawings. The terms or words used below should not be construed limited to their usual or dictionary meanings, and based on the principle that an inventor can appropriately define the concept of a term in order to explain his or her invention in the best way, It should be interpreted with meaning and concept consistent with the technical idea of the present invention.

The winding device 100 for the secondary battery electrode manufacturing process according to the present invention is the end (in the case of FIG. 1, the front end) of the secondary battery electrode manufacturing process line (coating process line, roll press process line, slitting process line, notching process line, etc.) ) is installed to wind the fabric 10 used in the process, and includes a turret 200, a support member 300, a suction roll 320, a cutter 330, and a suction plate 340. , includes another cutter 350.

As shown in FIG. 1, the turret 200 includes a first winding core 210 that is spaced apart at 180-degree intervals and can rotate independently by a motor (not shown) about the rotation axes 212 and 222, respectively. A second winding core (220) is provided. In addition, the turret 200 can rotate on its own by a motor (not shown) around the central axis 202, and when this rotation occurs, the above two winding cores 210 and 220 change their positions. In addition, the turret 200 is also provided with guide rolls 230.

The fabric 10 used in the secondary battery electrode manufacturing process is normally wound around the first winding core 210 and moves from the rear to the front. At this time, the first winding core 210 is located at the 9 o'clock direction in FIG. 1, and the second winding core 220 is located at the 3 o'clock direction (not shown). Then, when the first winding core 210 is fully wound, the turret 200 rotates counterclockwise about the central axis 202, so that the first winding core 210 is located in the 3 o'clock direction as shown in FIG. And the second winding core 220 is located at 9 o'clock. Afterwards, the winding (rotation) of the first winding core 210 stops and the fabric 10 stops.

As shown in FIG. 1, the support member 300 is located on the opposite side of the second winding core 220 with the stationary fabric 10 interposed therebetween. In addition, the support member 300 has a left end slidably coupled to a pair of LM guides 314 and a right end slidably coupled to a pair of LM guides (not shown), and the cylinder rod of the cylinder 312 is combined with The LM guides 314 and the cylinder 312 are fixed to a frame (not shown) that forms the overall frame of the winding device 100.

Upon operation of the cylinder 312, the support member 300 moves toward the stationary fabric 10 and is placed in a working position, or moves oppositely from this working position (away from the stationary fabric) and is placed in a standby position. Figure 1 shows the support member 300 in a standby position. Meanwhile, in Figure 1, the support member 300 is shown to go back and forth between the standby position and the work position through a linear reciprocating motion, but the support member 300 may also be made to go back and forth between the standby position and the work position through a pendulum motion ( (not shown).

The suction roll 320 is coupled to the support member 310 so that it can rotate around a rotation axis extending in the left and right directions (width direction of the fabric). Additionally, the suction roll 320 adsorbs the adhesive tape 40 so that its adhesive surface faces outward. Figure 1 shows the adhesive tape 40 being adsorbed at the 12 o'clock direction.

The cutter 330 is fixed to the left and right blocks 332, and the other cutter 350 is also fixed to the left and right blocks 352. And the left and right blocks 332 and 352 are coupled to the support member 300 so that they can reciprocate in the left and right directions at a distance from each other, and are equipped with a predetermined driving means (cylinder, motor, etc.) fixed to the support member 300. ) moves left or right at the same time.

The suction plate 340 has one surface as an adsorption surface. In addition, the suction plate 340 is located between the cutter 330 and another cutter 350 adjacent to the cutters 330 and 350, and is coupled to the support member 300 so that it can move back and forth in the left and right directions.

The above winding device 100 is in the same state as shown in FIG. 1, that is, the fabric 10 is fully wound on the first winding core 210 located at 3 o'clock and is stationary, and the second winding core 220 is located at 9 o'clock. It operates in a state where it is located, and the process is explained with reference to FIG. 2 as follows.

First, the support member 300 from the standby position moves to the working position, and then the suction roll 320 pushes the stationary fabric 10 to contact the first winding core 220, and the left end of the support member 300 The cutters (330, 350) located at the (or right end) move to the left (or right) of the stationary fabric (10) without interference from the stationary fabric (10), and the suction surface of the suction plate (340) moves to the stationary fabric (10). It comes into contact with and exerts adsorption power.

Therefore, when the support member 300 is in the working position, as shown in Figure 2 (a), the stationary fabric 10 is caught between the suction roll 320 and the first winding core 220, and is caught in this way. The fabric 10 in a stationary state is adsorbed to the suction plate 340 and at the same time, the cutters 330 and 350 are placed on the left (or right) side.

After the support member 300 moves to the working position, the cutters 330 move to the right (or left), and then, as shown in (b) of FIG. 2, the suction roll 320 and the first winding core ( 220), the stationary fabric 10 in the sandwiched state is separated into a recovery portion 14 wound on the first winding core 210 and a winding portion 12 to be wound on the second winding core 220, and the The recovery area 14 is divided into a sample area 14b adsorbed on the suction plate 340 and a remaining area 14a.

When the rightward (or leftward) movement of the cutters 330 is completed, the first winding core 210 rotates in reverse (rotation in the direction opposite to the direction in which the fabric is wound) as shown in (b) of FIG. 2. As a result, the suction roll 320 rotates in the opposite direction to the first winding core 210. And the rotating suction roll 320 releases the suction force and continues to rotate when the adhesive surface of the adhesive tape 40 is adhered to the end (front end) of the winding portion 12, which causes the adhesive tape 40 to adhere to the end (front end) of the winding portion 12. As shown in the enlarged view of (b), it is attached to the end (front end) of the winding portion 12 and the first winding core 220.

After the end (front end) of the winding portion 12 is adhered to the first winding core 220 as above, the support member 300 returns to the standby position, and the second winding core 210 is returned to the recovery portion 14. The remaining portion 14a is wound, and the first winding core 220 rotates forward as shown in (c) of FIG. 2 to wind the winding portion 12. And when the support member 300 returns to the standby position, the suction plate 340 moves left (or right) to pull out the sample portion 14b of the recovery portion 140 to the outside and releases the suction force. At this time, the operator The sample area 14b can be easily recovered.

Previously, the winding device 100 was described as having a suction plate 340 and another cutter 350, but when recovery of the sample portion 14b is not required, the suction plate 340 and another cutter 350 are used. does not need to be provided.

Meanwhile, as described above, the adhesive tape 40 is adsorbed on the suction roll 320, and the winding device 100 according to the present invention is an adhesive tape for automatically adsorbing the adhesive tape 40 on the suction roll 320. An automatic supply device 400 may be further included, and the automatic adhesive tape supply device 400 will be described below with reference to FIGS. 3 to 6.

The automatic adhesive tape supply device 400 is installed on a frame (not shown) forming the overall frame of the winding device 100 so as not to interfere with the movement of the support member 310. And the automatic adhesive tape supply device 400 may include an adhesive tape fabric roll 410, a feeding roll 420, an adsorption table 460, a reciprocating roller 440, and a cutter 450.

The adhesive tape fabric roll 410 is an idle roller located on one side in the left and right directions (shown on the left in FIGS. 3 to 6) of the suction roll 320, and uses the adhesive tape fabric 42 to become the adhesive tape 40. It's winding. The connecting adhesive tape fabric roll 410 is rotatably supported on the frame (not shown).

The suction table 460 is fixedly supported on the frame (not shown) to be positioned between the adhesive tape fabric roll 410 and the suction roll 320, and has one side (shown as the top side in FIGS. 3 to 6). is used as the adsorption surface, and a cutting groove 462 extending forward and backward is provided in the center of the adsorption surface. And the suction surface of the suction table 460 does not form a step with respect to the outer surface of the suction roll 320.

The feeding roll 420 is located between the adhesive tape fabric roll 410 and the suction table 460, rotates by a motor (not shown), and is rotatably supported on the frame (not shown). In addition, the feeding roll 420 is provided to pull the adhesive tape fabric 42 wound on the adhesive tape fabric roll 410 when rotating and supply it to the suction table 460. This feeding roll 420 can be used as an adsorption roll. You can. Meanwhile, the adhesive tape fabric 42 supplied by the feeding roll 420 assumes an attitude with the adhesive surface facing the outside of the suction roll 320 (upward in FIGS. 3 to 6).

The reciprocating roller 440 is coupled to the rail 430 so that it can move left and right between the initial position and the final position when the motor (not shown) operates. And the rail 430 is fixed to the frame (not shown) and extends in the left and right directions above the suction roll 320. The member indicated by reference numeral 440a is a cylinder for lifting the reciprocating roller 440 up and down.

The reciprocating roller 440 in the initial position contacts the left portion of the suction surface located on the left side of the cutting groove 462 (meaning the suction surface of the suction table 460), and then moves forward to form the cutting groove 462. It sequentially contacts the right side of the suction surface located on the right side and the surface of the suction roll 320, and then leaves the suction roll 320 and moves forward to the final position.

The reciprocating roller 440 cannot rotate when the brake (not shown) is activated, and can rotate when the brake (not shown) is not activated. These brakes include a pneumatic cylinder (not shown) that moves with the reciprocating roller 440 and a brake pad (not shown) that pressurizes or does not pressurize the surface of the reciprocating roller 440 by the pneumatic cylinder (not shown). One can be used.

The cutter 450 is coupled to the rail 430. In addition, the cutter 450 is provided to enter and exit the cutting groove 462 of the suction table 460 while being lifted up and down by a pneumatic cylinder 452, and the pneumatic cylinder 452 moves in a straight line by a motor or the like. It is coupled to the rail 430 to enable.

The operating process of the automatic adhesive tape supply device 400 described above is as follows.

Initially, as shown in FIG. 3, the end of the adhesive tape fabric 42 wound around the adhesive tape fabric roll 410 is adsorbed on the left side of the suction surface of the suction table 460, and the reciprocating roller 440 is initially It is placed in position and adhered to the adhesive surface of the end of the connecting adhesive tape fabric 42.

Afterwards, the reciprocating roller 440 moves first (rightward) by a preset amount to enter the state shown in FIG. 4 . During the first movement, the adsorption force of the adsorption table 460 is maintained, the reciprocating roller 440 cannot rotate due to the operation of the brake, and the end of the adhesive tape fabric 42 attached to the reciprocating roller 440 is It is drawn by the reciprocating roller 440 and is positioned within the suction area of the suction roll 320, as shown in FIG. 4. Here, the adsorption area of the adsorption roll 320 refers to the area where the intake holes 322 are located.

In addition, during the first movement, the feeding roll 420 rotates to supply the adhesive tape fabric 42 to the right. In this case, the supply speed of the adhesive tape fabric 42 is the moving (rightward) speed of the reciprocating roller 440. The rotation speed of the feeding roll 420 is controlled to be the same as , and this is to reliably prevent the reciprocating roller 440 from moving (forward) alone without leading the end of the adhesive tape fabric 42.

When the above primary movement is made, the feeding roll 420 stops, suction from the suction table 460 continues, and suction from the suction roll 320 also begins. Afterwards, as shown in FIG. 4, the adhesive tape fabric 42 is cut on the suction table 460 by the cutter 450 to form the adhesive tape 40. Suction from the suction roll 320 may be performed starting from the first movement.

After the adhesive tape 40 is formed through the above process, the reciprocating roller 440 makes a secondary movement (forward movement) by a preset amount to enter the state shown in FIG. 5. During the second movement, the feeding roll 420 continues to stop, and the adsorption force of the adsorption table 460 is maintained, so that the cut end of the adhesive tape fabric 42 continues to be adsorbed to the adsorption table 460, and the reciprocating roller 440 still cannot rotate due to the operation of the brake, and the end (right end) of the adhesive tape 40 attached to the reciprocating roller 440 is drawn by the reciprocating roller 440 and moves forward. When this secondary movement occurs, both ends (left and right ends) of the adhesive tape 40 are located in the adsorption area of the adsorption roll 320.

Even if the secondary movement is made, the reciprocating roller 440 continues to move forward without stopping and leaves the suction roll 320, and then stops moving forward when it reaches the final position as shown in FIG. 6. And as soon as the secondary movement is completed, the brake is released, and from this point on, the reciprocating roller 440 rotates and moves forward until it leaves the suction roll 320. If the reciprocating roller 440 cannot rotate even after the second movement, the connecting adhesive tape 40 continues to be dragged by the reciprocating roller 440 and leaves the adsorption area of the suction roll 320. On the other hand, if the brake is released as soon as the secondary movement is completed and the reciprocating roller 440 is made rotatable, at that time the reciprocating roller 440 absorbs the adhesive tape 40 adsorbed on the adsorption area of the adsorption roll 320. ) and becomes superior.

The reciprocating roller 440 in the final position is raised by the cylinder 440a and then moves (leftward) vertically upward to the initial position and waits. And after the adhesive tape 40 of the suction roll 320 is used to connect the winding portion 12 and the first winding core 220, it is lowered to the initial position, and then the state shown in FIG. 3 is formed again.

As described above, although the present invention has been described with limited examples and drawings, the present invention is not limited thereto, and the technical idea of the present invention and the following will be understood by those skilled in the art to which the present invention pertains. Of course, various modifications and variations can be made within the scope of equivalency of the claims to be described, and the above-described embodiments can be combined in various ways.

10: Fabric 12: Winding area
14: recovery area 14a: remaining area of the recovery area
14b: Recovery area Sample area 40: Adhesive tape
42: Adhesive tape fabric
100: Winding device for secondary battery electrode manufacturing process
200: Turret 210: First winding core
220: Second winding core 300: Support member
312: Cylinder 314: LM guide
320: Suction roll 330: Cutter
340: Suction plate 350: Another cutter
400: Automatic adhesive tape supply device
410: Adhesive tape fabric roll 420: Feeding roll
430: Rail 440: Reciprocating roller
450: cutter 460: suction table

Claims (4)

A turret including a first winding core and a second winding core for winding the fabric used in the secondary battery electrode manufacturing process;
It is located on the opposite side of the second winding core with the stationary fabric fully wound around the first winding core and stopped, and is arranged to be moved toward the stationary fabric and placed in a working position or moved oppositely from the working position to be placed in a standby position. lack of support;
an adsorption roll rotatably coupled to the support member and adsorbing an adhesive tape; and
It includes a cutter coupled to the upper limb support member so as to reciprocate in the width direction of the stationary fabric,
When the support member is in the working position, the stationary fabric is sandwiched between the suction roll and the second winding core, and the cutter cuts the stationary fabric sandwiched between the suction roll and the second winding core. It is separated into a recovery part wound on the first winding core and a winding part to be wound on the second winding core, and the suction roll is rotated by the second winding core rotating in reverse, and the adhesive tape is attached to the end of the winding part. and a winding device for a secondary battery electrode manufacturing process that is attached to the second winding core. According to paragraph 1,
A suction plate located adjacent to the cutter and another cutter located on an opposite side of the cutter with the suction plate interposed are coupled to the support member,
When the support member is in the working position, the suction plate adsorbs the stationary fabric, and the another cutter cuts the stationary fabric together with the cutter to separate the sample portion adsorbed to the suction plate from the recovery portion. Winding device for secondary battery electrode manufacturing process. According to paragraph 2,
A winding device for a secondary battery electrode manufacturing process in which the suction plate is coupled to the support member so that it can reciprocate in the width direction of the stationary fabric. According to paragraph 1,
An adhesive tape fabric wound on an adhesive tape fabric roll located on one side of the longitudinal direction (width direction of the stationary fabric) of the suction roll is formed with the adhesive tape, and the adhesive tape is placed in the suction area of the suction roll with the adhesive surface facing outward. A winding device for a secondary battery electrode manufacturing process further comprising an automatic adhesive tape supply device that automatically performs the positioning process.

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