KR102530928B1 - Electrode fabric slitting device for secondary batteries. - Google Patents

Abstract

The present invention relates to an electrode fabric slitting device for a secondary battery, which comprises: a main body (10) consisting of a vertical frame and a horizontal frame; an upper slitting unit (20) having a plurality of upper blades (204) installed and an upper roller (203) installed horizontally on the main body (10); a lower slitting unit (30) having a plurality of lower blades (304) installed and a lower roller (303) installed horizontally on the main body (10); an upper position control unit (40) installed on one side of the upper slitting unit (20) to automatically adjust the position of the upper blade (204); a lower position control unit (50) installed on one side of the lower slitting unit (30) to automatically adjust the position of the lower blade (304); a driving unit (60) simultaneously driving the upper roller (203) and the lower roller (303); and gap adjusters (70) installed on both left and right sides of the rear side of the main body (10) to adjust a gap between the upper roller (203) and the lower roller (303). According to the present invention, the position of the blades is automatically adjusted, and contact pressure between the upper and lower blades installed at regular intervals to come in contact with each other are made uniformly, thereby enhancing the precision of the cutting surface of the electrode fabric. Therefore, the precision deviation of each slit fabric is minimized to improve processing quality and productivity.

Description

Electrode fabric slitting device for secondary batteries {Electrode fabric slitting device for secondary batteries.}

The present invention relates to an apparatus for slitting electrode fabric for secondary batteries, and more particularly, the position of blades for cutting electrode fabric for secondary batteries is automatically adjusted, and the contact pressure between upper and lower blades installed at regular intervals and contacting each other is uniform It relates to an electrode fabric slitting device for a secondary battery capable of improving the processing quality and productivity by increasing the precision of the cut surface of the electrode fabric and minimizing the precision deviation of each slit fabric.

Recently, the secondary battery industry, which is a core part of IT devices along with semiconductors and displays, is in the limelight.

Unlike primary batteries, secondary batteries can be charged and discharged, so they can be used not only in small electronic products such as digital cameras, P-DVDs, MP3Ps, mobile phones, PDAs, portable game devices, power tools, and E-bikes, but also in electric vehicles and hybrid batteries. It is widely applied and used in various fields such as large products requiring high output, such as automobiles, power storage devices that store generated power or renewable energy, and power storage devices for backup.

Common types of secondary batteries include lithium ion batteries, lithium polymer batteries, nickel cadmium batteries, nickel hydrogen batteries, and nickel zinc batteries. There is a pouch type, etc., which is thinner than a prismatic or cylindrical type, is light in weight, can be manufactured in various shapes and shapes, has excellent efficiency and heat dissipation per volume area, and is easy to stack in multiple layers. The proportion of use is gradually increasing.

In addition, as the production of internal combustion locomotives is discontinued and the transition to electric vehicles is accelerated in line with the global carbon neutral movement, in order to meet the requirements for high-output and large-capacity batteries essential for electric vehicles, a battery means in which a number of battery cells are packaged is electrically As the demand for connected battery packs explodes, the demand for battery cells is further increasing.

A typical pouch-type battery cell is composed of an electrode assembly, a pouch case, and an electrode lead, and the electrode assembly is manufactured in a form embedded in the pouch case together with the electrolyte.

Electrode assemblies are classified into stack type, folding type, and stack-folding type depending on the manufacturing method. In the case of a stack type or stack-folding type electrode assembly, the unit assembly is a unit assembly in which an anode and a cathode are sequentially stacked with a separator interposed therebetween. consists of a structure

In order to make an electrode assembly, it is necessary to first manufacture an anode and a cathode.

That is, in the manufacturing process of unit electrodes such as positive and negative electrodes, active material coating process of mixing a slurry composed of positive electrode, negative electrode active material, conductive material, binder, solvent, etc., applying it to the surface of a current collector made of aluminum or copper metal foil, and drying; A rolling process that increases the capacity density of the active material and the binding force between the substrate and the active material for the coated electrode plate, a slitting process that cuts the electrode according to the size of the battery to be manufactured and winds it on a re-winder, and a re-winding process It consists of a notching and punching process in which the electrode is punched out and loaded into the electrode shape to be actually used while unwinding the re-winding electrode.

At this time, briefly explaining the structure of the conventional slitting device used in the slitting process, a driving roller with a plurality of upper cutting blades installed at regular intervals, and a driven driven with a plurality of lower cutting blades installed at intervals in close contact with the upper cutting blade Rollers are installed parallel.

The drive roller is connected to and driven by the drive unit, and the driven roller is installed to be idling.

Therefore, when the driving roller is rotated by the driving unit, when the electrode fabric is inserted between the driving roller and the driven roller, the electrode fabric is divided and cut into predetermined widths by a plurality of upper and lower cutting blades installed at regular intervals.

However, conventionally, when adjusting the distance between the plurality of upper cutting blades installed on the driving roller and the plurality of lower cutting blades installed on the driven roller, the operator fixes the lower cutting blades one by one and then adjusts the position of the upper cutting blades. Adjusting the distance between cutting blades is very cumbersome and inconvenient by adjusting the distance between cutting blades, and the risk of work is high because the position of the sharp cutting blade is adjusted. There are downsides.

In addition, since the cutting surface is formed rough due to the difference in rotational force and rotational speed between the upper cutting blade and the lower cutting blade, there is a disadvantage in that the precision of the cutting surface is lowered.

In addition, a plurality of upper cutting blades installed at regular intervals on the driving roller and a plurality of lower cutting blades installed at regular intervals on the driven roller in contact with each upper cutting blade come into contact with each other to form a plurality of groups. The contact pressure at which the upper and lower cutting blades come into contact with each group is different due to the adjustment of the distance between the blades, so when the electrode fabric is cut into multiple parts with a width that meets the electrode specification, the precision deviation of each cut surface of the electrode fabric is cut. There are also downsides to growing.

Since battery cells used in high-power, high-capacity batteries essential for electric vehicles require high safety, high processing precision and uniform processing quality of each material are required during the manufacturing process.

In particular, when the processing precision of the electrode constituting the battery cell is low and the processing quality variation is large, the possibility of damage to the battery cell increases, which increases the risk of fire and explosion of the battery cell. There is an urgent need to develop a slitting device dedicated to electrode fabrics that can increase the precision of the cutting surface and minimize the deviation in precision.

Registered Patent Publication No. 10-1810144

In order to solve the conventional disadvantages as described above, the present invention provides a secondary battery electrode fabric slitting device in which a plurality of blades whose positions are adjusted along the axial direction of the roller are automatically positioned by the position adjusting unit aims to

In addition, an object of the present invention is to provide an electrode fabric slitting device for a secondary battery capable of maintaining a uniform contact pressure between blades in contact with each other.

In order to achieve the above object, the electrode fabric slitting device for a secondary battery of the present invention,

A main body 10 composed of a vertical frame and a horizontal frame;

An upper slitting unit 20 having a plurality of upper blades 204 and an upper roller 203 installed in the main body 10 in a horizontal direction;

A lower slitting unit 30 having a plurality of lower blades 304 and a lower roller 303 installed in the main body 10 in a horizontal direction;

an upper position adjusting unit 40 installed on one side of the upper slitting unit 20 to automatically adjust the position of the upper blade 204;

a lower position adjusting unit 50 installed on one side of the lower slitting unit 30 to automatically adjust the position of the lower blade 304;

a driving unit 60 that simultaneously drives the upper roller 203 and the lower roller 303;

Interval adjusting units 70 installed on both left and right sides of the rear surface of the main body 10 to adjust the interval between the upper roller 203 and the lower roller 303; includes

In one embodiment, the upper slitting portion 20,

an upper bearing unit 201 installed on both sides of the main body 10 to be able to move up and down;

an upper bearing pressurizing means 202 installed on a side surface of the main body 10 to press the upper bearing unit 201 vertically downward;

an upper roller 203 rotatably supported by the upper bearing unit 201;

Upper blades 204 coupled to the outside of the upper roller 203 so that the position thereof can be adjusted along the axial direction of the upper roller 203; It is characterized in that it includes.

In one embodiment, the upper roller 203 is characterized in that the outer diameter is adjustable air shaft.

In one embodiment, the lower slitting portion 30,

a lower bearing unit 301 installed on both sides of the main body 10 so as to be able to move up and down;

a lower bearing pressurizing means 302 installed on a side surface of the main body 10 to press the lower bearing unit 301 vertically upward;

a lower roller 303 rotatably supported by the lower bearing unit 301;

A plurality of lower blades 304 coupled to the outside of the lower roller 303 so that the position thereof can be adjusted along the axial direction of the lower roller 303; It is characterized in that it includes.

In one embodiment, the lower roller 303 is characterized in that the outer diameter is adjustable air shaft.

In one embodiment, the upper position adjusting unit 40,

an upper horizontal conveying unit 401 installed in the upper part of the main body 10 in a horizontal direction;

an upper clamping means 402 that is transferred in a horizontal direction by the upper horizontal conveying means 401 and adjusts the position of the upper blade 204; It is characterized in that it includes.

In one embodiment, the upper clamping means 402 is characterized by being a robot arm.

In one embodiment, the upper position adjusting unit 40

a third guide means 403 for guiding the transfer of the upper clamping means 402; It is characterized in that it further comprises.

In one embodiment, the upper position adjusting unit 40

It is installed on one side of the upper clamping means 402 and detects the contact pressure applied to the upper blade 204 contacting the lower blade 304, and provides the detected value to the operation control unit of the upper horizontal transfer means 401 sensor means 404 to do; It is characterized in that it further comprises.

In one embodiment, the lower position adjusting unit 50,

a lower horizontal conveying means 501 installed in the lower part of the main body 10 in a horizontal direction;

a lower clamping means 502 that is transferred in a horizontal direction by the lower horizontal conveying means 501 and adjusts the position of the lower blade 304; It is characterized in that it includes.

In one embodiment, the lower clamping means 502 is characterized by being a robot arm.

In one embodiment, the lower position adjusting unit 50

a fourth guide means (503) for guiding the transfer of the lower clamping means (502); It is characterized in that it further comprises.

In one embodiment, the drive unit 60,

a driving motor 601 installed on one side of the main body 10 to transmit driving force to the lower roller 303;

Power transmission means 602 for transmitting the driving force of the lower roller 303 to the upper roller 203; It is characterized in that it includes.

In one embodiment, the drive unit 60,

It is characterized in that it further includes a coupling 603 installed between the rotational shaft of the lower roller 303 and the driving shaft of the driving motor 601 to regulate power transmission.

In one embodiment, the spacing adjusting unit 70,

An upper inclined block 701 installed at the lower part of the upper bearing unit 201 supporting the upper roller 203 and having an upper inclined surface 701a formed on the bottom surface;

a lower inclined block 702 installed on the upper part of the lower bearing unit 301 supporting the lower roller 303 and having a lower inclined surface 702a formed thereon;

a fifth horizontal transfer unit 703 installed symmetrically in a horizontal direction on the rear surface of the main body 10;

Inclined surfaces contacting the upper inclined surface 701a and the lower inclined surface 702a are vertically symmetrical, and the fifth horizontal conveying means 703 inserts and discharges between the upper inclined block 701 and the lower inclined block 702. a gap control block 704 for adjusting the gap between the upper roller 203 and the lower roller 303; It is characterized in that it includes.

According to the present invention, the positions of the plurality of upper blades installed on the upper roller and the plurality of lower blades installed on the lower roller are automatically adjusted, thereby reducing the time required to adjust the distance between the upper blade and the lower blade, There is an effect of improving production quality through precise positioning.

In addition, the slitting of the electrode fabric is performed while rotating at the same rotational force and rotational speed on the upper roller equipped with a plurality of upper blades and the lower roller installed with a plurality of lower blades, so that the precision of each cut surface of the slit electrode fabric is excellent. there is.

In addition, by ensuring that the contact pressure between the plurality of upper blades and the plurality of lower blades in contact with each upper blade is maintained uniformly, the precision deviation of each cut surface of the slit electrode fabric is minimized to maintain uniform processing quality It works.

1 is a front view according to a preferred embodiment of the electrode fabric slitting device for a secondary battery of the present invention.
Figure 2 is a side view according to a preferred embodiment of the electrode fabric slitting device for a secondary battery of the present invention.
Figure 3 is an exemplary view showing a sensor means according to a preferred embodiment of the electrode fabric slitting device for a secondary battery of the present invention.
Figure 4 is an exemplary side view showing a gap adjusting unit according to a preferred embodiment of the electrode fabric slitting device for a secondary battery of the present invention.
Figure 5 is an exemplary view showing a state of adjusting the distance between the upper roller and the lower roller by the distance adjusting unit according to a preferred embodiment of the secondary battery electrode fabric slitting device of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention.

Since the description of the present invention is only an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text.

That is, since the embodiment can be changed in various ways and can have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea.

In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, the scope of the present invention should not be construed as being limited thereto.

All terms used in the description of the present invention have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs, unless otherwise defined.

Terms defined in commonly used dictionaries should be interpreted as consistent with meanings in the context of the related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present invention.

In addition, terms such as “upper part” and “lower part” are used only to distinguish different components from each other, and are not limited to the manufacturing order, and the scope of rights should not be limited by these terms.

1 is a front view of an electrode fabric slitting device for a secondary battery according to a preferred embodiment of the present invention, FIG. 2 is a side view of the electrode fabric slitting device for a secondary battery according to a preferred embodiment of the present invention, and FIG. It is an exemplary view showing a sensor means according to a preferred embodiment of the electrode fabric slitting device for a secondary battery of the present invention, and FIG. Figure 5 is an exemplary view showing a state of adjusting the distance between the upper roller and the lower roller by the distance adjusting unit according to a preferred embodiment of the device for slitting the electrode fabric for a secondary battery of the present invention.

Description will be made with reference to FIGS. 1 to 5 .

The electrode fabric slitting device for a secondary battery of the present invention automatically adjusts the position of a plurality of blades whose positions are adjusted along the axial direction of the roller, and maintains a uniform contact pressure between the blades in contact with each other, the main body 10, It includes an upper slitting part 20, a lower slitting part 30, an upper position adjusting part 40, a lower position adjusting part 50, a driving part 60, and a spacing adjusting part 70.

The main body 10 has a vertical frame and a horizontal frame and is formed in a rectangular frame shape.

The upper slitting part 20 includes an upper bearing unit 201, an upper bearing pressing means 202, an upper roller 203, and an upper blade 204.

The upper bearing unit 201 is installed symmetrically on both sides of the main body 10 so that it can move up and down.

The upper bearing pressing means 202 is vertically installed on the side surface of the main body 10 to selectively press the upper bearing unit 201 .

That is, the upper bearing pressurizing means 202 is installed on the upper side of the upper bearing unit 201, so that in the process of adjusting the distance between the upper roller 203 and the lower roller 303 by the gap adjusting unit 70, the upper bearing unit When the distance adjustment between the upper roller 203 and the lower roller 303 by the gap adjusting unit 70 is completed without pressing the 201, the upper bearing unit 201 rotatably supporting the upper roller 203 The upper bearing unit 201 is pressurized and fixed with a constant pressure so that the position is stably fixed.

It is preferable to use an actuator as the upper bearing pressurizing means 202.

The upper roller 203 is rotatably supported by an upper bearing unit 201.

It is preferable to use an air shaft capable of adjusting the outer diameter of the upper roller 203.

The air shaft is also referred to as a pneumatic expansion shaft, and is connected to a pneumatic system for supplying compressed air so that its outer diameter is selectively reduced or expanded by controlling the supply of compressed air.

The upper blade 204 has an annular shape and is coupled to the outside of the upper roller 203 so that its position can be adjusted along the axial direction of the upper roller 203.

That is, the plurality of upper blades 204 coupled to the upper roller 203 are movable in the axial direction of the upper roller 203 in a state where the outer diameter of the upper roller 203 is reduced, and the outer diameter of the upper roller 203 In this expanded state, the position of the upper blade 204 is fixed so that the position of the upper blade 204 can be adjusted.

The lower slitting part 30 includes a lower bearing unit 301, a lower bearing pressing means 302, a lower roller 303, and a lower blade 304.

The lower bearing unit 301 is installed symmetrically on both sides of the main body 10 so that it can move up and down.

The lower bearing pressing unit 302 is vertically installed on the side surface of the body 10 to selectively press the lower bearing unit 301 .

That is, the lower bearing pressurizing means 302 is installed on the lower side of the lower bearing means, so that in the process of adjusting the distance between the upper roller 203 and the lower roller 303 by the gap adjusting unit 70, the lower bearing unit 301 When the distance adjustment between the upper roller 203 and the lower roller 303 is completed by the gap adjusting unit 70 without pressurizing the lower roller 303, the position of the lower bearing unit 301 rotatably supporting the lower roller 303 is stable. The lower bearing unit 301 is pressurized and fixed with a constant pressure so as to be fixed.

It is preferable to use an actuator as the lower bearing pressurizing means 302.

The lower roller 303 is rotatably supported by a lower bearing unit 301.

For the lower roller 303, it is preferable to use an air shaft whose outer diameter can be adjusted.

The air shaft is also referred to as a pneumatic expansion shaft, and is connected to a pneumatic system for supplying compressed air so that its outer diameter is selectively reduced or expanded by controlling the supply of compressed air.

The lower blade 304 has an annular shape and is coupled to the outside of the lower roller 303 so that its position can be adjusted along the axial direction of the lower roller 303 .

That is, the plurality of lower blades 304 coupled to the lower roller 303 are movable in the axial direction of the lower roller 303 in a state in which the outer diameter of the lower roller 303 is reduced, and the outer diameter of the lower roller 303 is reduced. In this expanded state, the position of the lower blade 304 is fixed so that the position of the lower blade 304 can be adjusted.

The upper position adjusting unit 40 includes an upper horizontal transfer means 401 and an upper clamping means 402.

The upper horizontal conveying means 401 is installed in the upper part of the main body 10 in a horizontal direction.

As an example, the upper horizontal transfer unit 401 includes an upper motor 401a, an upper screw shaft 401b, and an upper ball nut 401c.

The upper motor (401a) is installed on one side of the main body 10, it is preferable to use a servo motor capable of forward and reverse rotation.

The upper screw shaft 401b is horizontally installed on the upper part of the main body 10 and is connected to the driving shaft of the upper motor 401a to rotate forward and backward by the upper motor 401a.

The upper ball nut 401c is screwed to the upper screw shaft 401b and moves left and right in the horizontal direction according to the rotation direction of the upper screw shaft 401b.

The upper clamping means 402 is transferred in a horizontal direction by the upper horizontal conveying means 401 to adjust the position of the upper blade 204.

As an example, the upper clamping means 402 is a robot arm capable of selectively clamping the annular upper blade 204 coupled to the upper roller 203 of the upper slitting part 20, and the upper horizontal conveying means 401 ) is preferably coupled to the upper ball nut 401c.

In one embodiment, the upper position adjusting unit 40 may further include a third guide means 403 for guiding the transfer of the upper clamping means 402.

As an example, the third guide means 403 includes a third guide rail 403a and a third rail block 403b.

The third guide rail 403a is installed above the main body 10 in parallel with the upper screw shaft 401b.

The third rail block 403b is slidably installed along the third guide rail 403a, and the upper clamping means 402 is coupled to the third rail block 403b.

Therefore, when the upper clamping means 402 is transported along the upper screw shaft 401b by the driving of the upper motor 401a, the third rail block 403b to which the upper clamping means 402 is coupled is the third guide. By sliding along the rail 403a, more precise transfer of the upper clamping means 402 is possible.

In one embodiment, the upper position adjusting unit 40 may further include a sensor means 404 for detecting a contact pressure applied to the upper blade 204 in contact with the lower blade 304 .

The sensor means 404 is installed on one side of the upper clamping means 402, and after the upper clamping means 402 transfers the upper blade 204 along the axial direction of the upper roller 203, the upper blade 204 ) detects the contact pressure applied to the upper blade 204 in the process of pressing the upper blade 204 in the direction of the lower blade 304 so that it closely contacts the lower blade 304, and transfers the detected value to the upper horizontal It is provided to the operation controller of the means 401.

Therefore, the operation control unit of the upper horizontal conveying means 401 compares the detected value provided by the sensor means 404 with the pre-stored reference value range, and moves the upper blade 204 to the lower blade 304 until the detected value falls within the reference value range. ) direction, it is possible to adjust the contact pressure of the upper blade 204 and the lower blade 304 within the reference value range stored in the operation controller of the upper horizontal transfer unit 401.

The lower position adjusting unit 50 includes a lower horizontal conveying means 501 and a lower clamping means 502.

The lower horizontal conveying means 501 is installed in the lower part of the main body 10 in a horizontal direction.

As an example, the lower horizontal transfer unit 501 includes a lower motor 501a, a lower screw shaft 501b, and a lower ball nut 501c.

The lower motor 501a is installed on one side of the main body 10, and it is preferable to use a servomotor capable of forward and reverse rotation.

The lower screw shaft 501b is installed in the lower part of the main body 10 in a horizontal direction and is connected to a driving shaft of the lower motor 501a to rotate forward and backward by the lower motor 501a.

The lower ball nut 501c is screwed to the lower screw shaft 501b and moves left and right in the horizontal direction according to the rotation direction of the lower screw shaft 501b.

The lower clamping means 502 is transferred in a horizontal direction by the lower horizontal conveying means 501 to adjust the position of the lower blade 304.

As an example, the lower clamping means 502 is a robot arm capable of selectively clamping the annular lower blade 304 coupled to the lower roller 303 of the lower slitting part 30, and the lower horizontal conveying means 501 ) is preferably coupled to the lower ball nut 501c.

In one embodiment, the lower position adjusting unit 50 may further include a fourth guide means 503 for guiding the transfer of the lower clamping means 502.

As an example, the fourth guide means 503 includes a fourth guide rail 503a and a fourth rail block 503b.

The fourth guide rail 503a is installed on the lower part of the main body 10 in parallel with the lower screw shaft 501b.

The fourth rail block 503b is slidably installed along the fourth guide rail 503a, and the lower clamping means 502 is coupled to the fourth rail block 503b.

Therefore, when the lower clamping means 502 is transported along the lower screw shaft 501b by driving the lower motor 501a, the fourth rail block 503b to which the lower clamping means 502 is coupled is the fourth guide. By sliding along the rail 503a, more precise transfer of the lower clamping means 502 is possible.

The driving unit 60 includes a driving motor 601 and a power transmission means 602 to simultaneously drive the upper roller 203 and the lower roller 303 .

The drive motor 601 is installed on one side of the main body 10 and transmits a driving force to the lower roller 303.

In order to transmit driving force to the lower roller 303, the rotation shaft of the lower roller 303 is connected to the drive shaft of the drive motor 601, but the power transmission is intermittent between the rotation shaft of the lower roller 303 and the drive shaft of the drive motor 601. A coupling 603 may be further provided.

The power transmission means 602 transmits the driving force of the lower roller 303 rotated by the drive motor 601 to the upper roller 203 as it is, and the rotation direction of the lower roller 303 and the rotation of the upper roller 203 A drive gear 602a is installed on the rotation shaft of the lower roller 303 so that the directions are opposite to each other, a driven gear 602b is installed on the rotation shaft of the upper roller 203, and a connecting gear between the drive gear and the driven gear ( 602c) is preferably installed.

The gap adjusting unit 70 includes an upper inclined block 701, a lower inclined block 702, a fifth horizontal conveying means 703, and a gap adjusting block to adjust the gap between the upper roller 203 and the lower roller 303. (704).

The upper inclined block 701 is installed under the upper bearing unit 201 supporting the upper roller 203, and an upper inclined surface 701a is formed on the lower surface.

The lower inclined block 702 is installed on the upper part of the lower bearing unit 301 supporting the lower roller 303, and a lower inclined surface 702a is formed on the upper surface, and the lower inclined surface 702a is formed with the upper inclined surface 701a It is formed symmetrically up and down.

The fifth horizontal transfer means 703 is installed symmetrically left and right in the horizontal direction on the rear surface of the main body 10 .

As an example, the fifth horizontal conveying unit 703 includes a spacing adjusting motor 703a and a spacing adjusting screw shaft 703b.

The spacing control motor (703a) is installed in the horizontal direction on the rear surface of the main body 10, it is preferable to use a servo motor capable of forward and reverse rotation.

The spacing adjusting screw shaft 703b is installed horizontally on the rear surface of the main body 10 and rotates forward and backward by the spacing adjusting motor 703a by being connected to the drive shaft of the spacing adjusting motor 703a.

The distance adjusting block 704 has an inclined surface contacting the upper inclined surface 701a and the lower inclined surface 702a in a vertical symmetrical manner, and the upper inclined block 701 and the lower inclined surface are formed by the fifth horizontal conveying means 703. It is put in and discharged between the blocks 702 to adjust the distance between the upper roller 203 and the lower roller 303.

That is, the spacing adjusting block 704 is screwed to the spacing adjusting screw shaft 703b.

Therefore, when the spacing adjusting block 704 advances between the upper inclination block 701 and the lower inclination block 702 according to the rotational direction of the spacing adjusting screw shaft 703b rotated by the spacing adjusting motor 703a, the spacing adjustment The upper inclined block 701 in contact with the inclined surface formed symmetrically up and down of the block 704 rises, and the lower inclined block 702 descends, increasing the distance between the upper roller 203 and the lower roller 303.

When the distance between the upper roller 203 and the lower roller 303 is increased, the upper blade 204 installed on the upper roller 203 and the lower blade 304 installed on the lower roller 303 are spaced apart and the upper blade When the positions of the 204 and the lower blade 304 are adjusted, interference between the upper blade 204 and the lower blade 304 is prevented.

On the other hand, when the spacing adjusting block 704 retreats between the upper inclination block 701 and the lower inclination block 702 according to the direction of rotation of the spacing adjusting screw shaft 703b rotated by the spacing adjusting motor 703a, the upper As the inclined block 701 descends and the lower inclined block 702 ascends, the distance between the upper roller 203 and the lower roller 303 is reduced.

When the distance between the upper roller 203 and the lower roller 303 is reduced, the upper blade 204 installed on the upper roller 203 and the lower blade 304 installed on the lower roller 303 can contact each other. .

The position control process of the upper blade 204 and the lower blade 304 of the electrode fabric slitting device for a secondary battery of the present invention configured as described above will be described.

When the distance between the upper roller 203 and the lower roller 303 is increased by the gap adjusting unit 70, the plurality of lower blades 304 are sequentially transferred to the set position by the lower position adjusting unit 50, and then , while the lower roller 303 expands, the position of the lower blade 304 is fixed.

When the position setting of the lower blade 304 is completed, the plurality of upper blades 204 are sequentially transferred to the set position by the upper position adjusting unit 40, and then the upper roller 203 is moved by the gap adjusting unit 70. As the distance between the and lower rollers 303 is reduced, contact between the upper blade 204 and the lower blade 304 is possible.

When contact between the upper blade 204 and the lower blade 304 is possible, the upper clamping means 402 of the upper position adjusting unit 40 brings the upper blade 204 into contact with the lower blade 304, and the sensor means ( 404) to sense the contact pressure between the upper blade 204 and the lower blade 304 and sequentially bring the upper blade 204 and the lower blade 304 into close contact with a preset reference value (set pressure).

When all the upper blades 204 and lower blades 304 come into close contact with the set reference value, the upper roller 203 expands and the position of the upper blade 204 is fixed.

After the positions of the upper blade 204 and the lower blade 304 are set as above, in the process of rotating the upper roller 203 and the lower roller 303 in opposite directions by the drive unit 60, the electrode fabric for the secondary battery When inserted between the upper blade 204 and the lower blade 304, the electrode fabric is slit according to the spacing of the blades forming several sets.

At this time, as the rotational force and rotational speed of the drive unit 60 act equally on the upper blade 204 and the lower blade 304, the cutting surface precision of the electrode fabric slit by the upper blade 204 and the lower blade 304 Not only is it greatly improved, but also it is possible to maintain uniform processing quality by minimizing the precision deviation of each cut surface.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concept of the present invention defined in the following claims are also included in the scope of the present invention. that fall within the scope of the right.

10: main body 20: upper slitting part
201: upper bearing unit 202: upper bearing pressurizing means
203: upper roller 204: upper blade
30: lower slitting part 301: lower bearing unit
302: lower bearing pressurizing means 303: lower roller
304: lower blade 40: upper position adjusting unit
401: upper horizontal conveying means 402: upper clamping means
403: third guide means 404: sensor means
50: lower position control unit 501: lower horizontal conveying means
502: lower clamping means 503: fourth guide means
60: drive unit 601: drive motor
602: power transmission means 603: coupling
70: spacing control unit 701: upper slope block
701a: upper slope 702: lower slope block
702a: lower slope 703: fifth horizontal transfer means
704: interval adjustment block

Claims (5)

A main body 10 composed of a vertical frame and a horizontal frame;
An upper slitting unit 20 having a plurality of upper blades 204 and an upper roller 203 installed in the main body 10 in a horizontal direction;
A lower slitting unit 30 having a plurality of lower blades 304 and a lower roller 303 installed in the main body 10 in a horizontal direction;
an upper position adjusting unit 40 installed on one side of the upper slitting unit 20 to automatically adjust the position of the upper blade 204;
a lower position adjusting unit 50 installed on one side of the lower slitting unit 30 to automatically adjust the position of the lower blade 304;
a driving unit 60 that simultaneously drives the upper roller 203 and the lower roller 303;
Interval adjusting units 70 installed on both left and right sides of the rear surface of the main body 10 to adjust the interval between the upper roller 203 and the lower roller 303; including,
The spacing adjusting unit 70,
An upper inclined block 701 installed at the lower part of the upper bearing unit 201 supporting the upper roller 203 and having an upper inclined surface 701a formed on the bottom surface;
a lower inclined block 702 installed on the upper part of the lower bearing unit 301 supporting the lower roller 303 and having a lower inclined surface 702a formed thereon;
a fifth horizontal transfer unit 703 installed symmetrically in a horizontal direction on the rear surface of the main body 10;
Inclined surfaces contacting the upper inclined surface 701a and the lower inclined surface 702a are vertically symmetrical, and the fifth horizontal conveying means 703 inserts and discharges between the upper inclined block 701 and the lower inclined block 702. a gap control block 704 for adjusting the gap between the upper roller 203 and the lower roller 303; Electrode fabric slitting device for a secondary battery, characterized in that it comprises a.
According to claim 1,
The upper slitting part 20,
an upper bearing unit 201 installed on both sides of the main body 10 to be able to move up and down;
an upper bearing pressurizing means 202 installed on a side surface of the main body 10 to press the upper bearing unit 201 vertically downward;
an upper roller 203 rotatably supported by the upper bearing unit 201;
Upper blades 204 coupled to the outside of the upper roller 203 so that the position thereof can be adjusted along the axial direction of the upper roller 203; Electrode fabric slitting device for a secondary battery, characterized in that it comprises a.
According to claim 1,
The upper position adjusting unit 40,
an upper horizontal conveying unit 401 installed in the upper part of the main body 10 in a horizontal direction;
an upper clamping means 402 that is transferred in a horizontal direction by the upper horizontal conveying means 401 and adjusts the position of the upper blade 204; Electrode fabric slitting device for a secondary battery, characterized in that it comprises a.
According to claim 3,
The upper position adjusting unit 40 is
It is installed on one side of the upper clamping means 402 and detects the contact pressure applied to the upper blade 204 contacting the lower blade 304, and provides the detected value to the operation control unit of the upper horizontal transfer means 401 sensor means 404 to do; Electrode fabric slitting device for a secondary battery, characterized in that it further comprises.
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