KR20230078337A - object lifting and transporting apparatus and lifting and transporting method - Google Patents

Abstract

An object lifting/transporting apparatus is disclosed. An object lifting/transporting apparatus of the present invention comprises a fixated base provided with a seating surface on which an object is seated, and a shape deformation restoration member capable of elastically deforming and restoring a shape on the seating surface; a pair of shape deformation driving units provided on both sides of the fixated base and deforming the shape by pressing both edges of the shape deformation restoration member toward the central portion to space the bottom surface of the object apart from the seating surface; and a transporting unit movably provided on an upper side of the fixated base and capable of transporting the object spaced apart from the seating surface in a state of being fixatedly supported. The present invention adopts a method for lifting the object upward to a set height or more using the shape deformation of the shape deformation restoration member and then transporting the object to a post-process line in a state of being supported from the lower side, thereby preventing surface damage or tearing of the object, for example, a separator of an electrode assembly for a secondary battery before a pouching work, in a process of transferring the object, and stably transporting the object.

Description

Object lifting and transporting device and lifting and transporting method {object lifting and transporting apparatus and lifting and transporting method}

The present invention relates to an object elevating and conveying device and an object elevating and conveying method for transferring an object on a fixed base for which pre-work has been completed for subsequent processes.

Unlike primary batteries, secondary batteries that can be charged and discharged are being actively researched and produced with the development of high-tech fields such as digital cameras, cellular phones, notebook computers, hybrid vehicles, and electric vehicles. Secondary batteries include nickel-cadmium batteries, nickel-metal hydride batteries, nickel-hydrogen batteries, lithium secondary batteries, and the like.

Methods for manufacturing such a secondary battery internal cell stack are largely divided into two types. In the case of small-sized secondary batteries, a method of arranging negative and positive plates on a separator and rolling them to form a jelly-roll is often used. A method of manufacturing by stacking a negative electrode plate, a positive electrode plate, and a separator in an appropriate order is widely used.

There are several methods of manufacturing the internal cell stack of a secondary battery in a stacked manner. Among them, in the Z-folding method (also called Z-folding, zigzag folding, or accordion folding), the separator is folded in a zigzag pattern, and between them The negative plate and the positive plate are alternately stacked in an inserted form.

Conventionally, electrodes and separators are stacked multiple times on a stage, and the stacked electrode assembly is clamped using a separate robot arm, separated from the stage, and transferred to a post-processing line.

Specifically, first, a method of transferring the electrode assembly to a post-processing line using a robot arm in a state in which the outer surface (separation membrane) of the electrode assembly is vacuum-adsorbed using a vacuum suction pad or the like is used.

Second, a method of pushing the electrode assembly on the stage by applying a certain amount of pressure to the side or upward, and then transferring the electrode assembly to the post-processing line in a state of clamping the electrode assembly using a robot arm.

However, in both of the above two methods, by adopting a method of vacuum adsorption or pressurization of a separator, which is a relatively thin and weak material, in the process of separating the electrode assembly from the stage and transferring it to a subsequent process, the separator is torn or the surface There was a problem that scratches occurred on the electrode assembly and defects frequently occurred.

Republic of Korea Patent Publication No. 10-2020-0089452 (published on July 27, 2020)

The present invention has been made to solve the above-mentioned conventional problems, and in the process of lifting an object whose work has been completed on a fixed base and transferring it to a post-processing line, the occurrence of surface damage or tearing of the object is prevented, thereby reducing the rate of defects. It is an object of the present invention to provide an object elevation transfer device and an object elevation transfer method capable of reducing and stably transporting an object.

According to one aspect of the present invention, a fixing base having a seating surface on which an object is seated is provided, and a shape-deformation restoring member capable of elastically transforming and restoring a shape is provided on the seating surface; and a pair of shape-transformation driving units provided on both sides of the fixing base and configured to press both edges of the shape-transformation restoration member toward the central portion to deform the shape so that the bottom surface of the object and the seating surface are spaced apart. There is provided an object lifting and transporting device that does.

Each of the pair of shape-deformation driving units includes a fixing block fixed to opposite side edges of the shape-deformation restoring member; and a forward and backward movement unit for forward and backward movement of the fixing block, so that a central portion of the shape deformation restoration member is convexly deformed so that the bottom surface of the object and the seating surface may be spaced apart from each other.

Bending parts bent with respect to the central portion are provided at both edges of the shape-deformation restoring member, and the bending parts may be integrally fixed to the fixing block.

The base is provided so as to be able to come into contact with upper surfaces of both edge regions of the shape-deformation restoring member, and when the central portion is convexly deformed by driving the shape-transformation driving unit, shape deformation of the both-side edge regions is prevented. In addition, a plurality of shape deformation prevention and alignment bars capable of aligning and disposing the object may be further provided.

The plurality of shape deformation prevention and alignment bars are provided in a state in which they protrude a certain distance from the upper surface of the fixing base, and the object can be seated on the seating surface in a state in which both side surfaces are contacted and supported by the plurality of shape deformation prevention and alignment bars. there is.

The shape-deformation restoring member may be a leaf spring.

It is movably provided on the upper side of the fixing base and further includes a transfer unit capable of transporting the target object spaced apart from the seating surface in a fixedly supported state, wherein the transfer unit moves the object seated on the seating surface in a lateral direction. In addition to being supportable, it may be possible to transport the lower surface of the object, which is spaced upward from the seating surface, while supporting it from the lower side.

The transfer unit may include a transfer base; a pair of lateral support guides provided to be able to move up and down and approach or separate from each other on the transfer base so as to contact and support both sides of the object seated on the seating surface; And in a state in which the bottom surface of the object and the seating surface are spaced apart by driving the shape-transforming driving unit, a plurality of lower portions provided on the transfer base to move into the separation space and contact and support the bottom surface of the object from the lower side. A support finger may be included.

The transfer unit further includes a plurality of pressing and fixing units for pressurizing and fixing the object between the lower support finger and the lower support finger by pressing the upper surface of the object downward in a state in which the lower support finger supports the lower surface of the object. can include

The plurality of pressing fixing parts may include at least one material of plastic, rubber, and silicone having a certain level of ductility.

The target object may be an electrode assembly for a secondary battery before a pouching operation or a pouched secondary battery cell.

According to another aspect of the present invention, (a) seating the object on a seating surface of the object elevation transfer device; (b) separating the bottom surface of the object and the seating surface by driving the shape-transformation driving unit so that the central portion of the shape-transformation restoration member is convexly deformed; (c) moving a plurality of lower support fingers into a space between the bottom surface of the object and the seating surface; (d) elastically restoring the shape-shifting restoring member so that the convex shape-deformed state of the shape-shifting restoring member is removed; and (e) pressing and fixing the object between the lower support finger and the upper surface of the object by pressing the upper surface of the object downward.

Step (b) may include (b1) contacting and supporting both sides of the object to prevent lateral movement of the object; and (b2) elastically deforming the shape-transformation restoring member so that the object is spaced upward from the seating surface in a state in which lateral movement is restrained.

In the step (e), the lower side of the object may be pressed in a state in which the lateral movement of the object is prevented.

The object may be an electrode assembly for a secondary battery before being pouched or a pouched secondary battery cell.

According to the object lifting and transporting device and lifting and transferring method of the present invention described above, the object is lifted upward for a certain amount or more using the shape deformation of the shape-deformation restoring member, and then the object is supported from the bottom and transferred to the post-processing line By adopting the method, it is possible to prevent surface damage or tearing of the separator of an object, for example, an electrode assembly for a secondary battery before a pouching operation, in the process of transferring the object, and to stably transfer the object.

In addition, in a state in which the object is lifted upward, the portion in contact with the bottom surface of the object is the central portion corresponding to the upper curvature of the shape-deformation restoring member that is convexly shape-deformed, so the mutual contact area with the object is minimized. Surface damage of the object can be prevented as much as possible by lifting the object.

In addition, by allowing both sides of the object to be lifted upward according to the shape deformation of the shape-deformation restoration member in a state where both sides of the object are contacted and supported through a pair of lateral support guides, the object is tilted to one side or falls to the seating surface of the fixing base during the lifting process. This phenomenon can be prevented from occurring, and the object can be stably lifted while maintaining a horizontal state.

1 is a perspective view showing an object lifting and transferring device according to an embodiment of the present invention;
2a and 2b are perspective views showing a fixed base and a shape-deformable drive unit of an object lifting and transporting device according to an embodiment of the present invention;
3 is a flow chart showing a method for lifting and transferring an object according to an embodiment of the present invention;
4 to 6 are diagrams sequentially illustrating a method for lifting and transferring an object according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only these embodiments will complete the disclosure of the present invention, and will fully cover the scope of the invention to those skilled in the art. It is provided to inform you. Like reference numerals designate like elements in the drawings.

An object lifting and transporting device and method according to a preferred embodiment of the present invention are for transferring an object on a fixed base for a post-process, in particular, a process of lifting and transferring an object seated on a fixed base. It is possible to reduce the occurrence of product defects and secure stable quality by preventing scratches and tears from occurring on the surface of the object.

Hereinafter, the present invention will be described in detail with reference to examples.

As shown in FIGS. 1 and 2, the object lifting and transporting device according to the embodiment of the present invention is for transferring an object for which pre-work has been completed on a fixed base for a post-process, and the object 10 is, for example, a pouch It can be applied to an electrode assembly for a secondary battery before operation or a pouched secondary battery cell. However, it is not limited thereto, and of course, the object 10 can be applied in various ways other than the above-described examples. Hereinafter, a case in which the object 10 is applied as an electrode assembly for a secondary battery before a pouching operation will be described as an example.

As shown in FIGS. 1, 2, and 4 to 6, the device for lifting and transferring an object according to an embodiment of the present invention includes a fixed base 100, a shape-transforming driving unit 200, and a transfer unit 300. .

First, the fixing base 100 is provided with a seating surface 110 on which the object 10 is seated, and a shape-deformation restoration member 120 capable of elastically transforming and restoring its shape is provided on the seating surface. The shape-deformation restoring member 120 can be freely elastically deformed/restored by an external force, and in the present invention, for example, it can be applied as a leaf spring.

The shape-deformation restoring member 120 includes a central portion 121 and edge regions on both sides, and a bending portion 122 bent at an angle of approximately 90 degrees with respect to the central portion 121 is provided on both edges.

Next, as shown in FIGS. 1, 2, and 4 to 6, the shape-deformation driving unit 200 is provided on both sides of the fixed base 100, and the shape-deformation restoring member 120 has both side edges. The shape is deformed by pressing toward the central portion (the central portion of the shape-shifting restoring member) to space the bottom surface and the seating surface 110 of the object 10 apart. That is, the target object 10 is seated on the fixed base 100 with its bottom surface in contact with the upper surface of the shape-deformation restoring member 120, and when the shape of the shape-deformation restoring member 120 is deformed, the shape-deformation restoring member 120 ) Is lifted upward at a certain distance from the fixed base 100 while the lower side is supported by the central portion 121 of the.

In an embodiment of the present invention, a pair of shape-changing driving units 200 each include a fixed block 210 and a forward/reverse movement unit 220.

The fixing block 210 is formed to have a length longer than a predetermined length than the length of the object 10, and is fixed to both edges of the shape-deformation restoring member 120, specifically in FIGS. 1, 2, 4 to 6 As shown in, the bending portion 122 of the shape-deformation restoring member 120 is integrally fixed to the fixing block 210. For example, the bending portion 122 may be integrally fixed through a method such as a screw, a rivet, or welding.

Therefore, as the pair of fixing blocks 210 provided on both left and right sides of the fixing base 100 approach and move to the fixing base 100 at the same time, the central portion 121 of the shape-deformation restoring member 120 is convex upward. Shape deformation may occur. That is, the present invention can be spaced between the bottom surface and the seating surface 110 of the target object 10 so that the central portion 121 of the shape-deformation restoring member 120 is deformed convexly upward. In addition, as the pair of fixing blocks 210 move in a direction away from the fixing base 100 at the same time, the shape-deformed shape-deformation restoration member 120 can be elastically restored to a flat state.

In an embodiment of the present invention, the forward and backward movement unit 220 for approaching or separating the fixing block 210 from the fixing base 100 may include a ball screw, an LM guide, a cylinder, and the like.

Specifically, as shown in FIGS. 1 and 2, a pair of guide rails 221 are provided on the installation floor so as to intersect the arrangement direction of the fixing block 210, and reciprocate along the guide rails 221. A pair of moving blocks 222 are provided to enable, and any one fixed block 210 has a state integrally coupled to the pair of moving blocks 222 . In addition, the forward and backward moving unit 220 that substantially approaches or separates the fixed block 210 from the fixed base 100 includes a motor, etc., and the fixed block 210 is driven by a pair of guide rails. Guided by the 221 and the moving block 222, it can move in a straight line. However, it is not limited thereto and can be applied in various forms other than the forward/backward movement unit for rectilinearly reciprocating the fixed block 210 .

In an embodiment of the present invention, as shown in FIGS. 1, 2, and 4 to 6, a plurality of shape deformation prevention and alignment bars 130 are further provided on the fixing base 100.

The shape deformation preventing and aligning bars 130 are provided to be in contact with the upper surface of the set edge regions of the shape deformation restoration member 120 and are provided long along both edges of the fixed base 100 in the longitudinal direction.

Both edge regions of the shape-deformation restoring member 120 are disposed in a state interposed between the shape-deformation prevention and alignment bar 130 and the seating surface 110, and specifically, the bottom surface of the edge region of the shape-deformation restoration member 120. The silver is in contact with the seating surface 110, and its upper surface is interposed in a state of contact with the lower surface of the shape deformation prevention and alignment bar 130. Accordingly, when the shape deformation driving unit 200 is driven, the shape deformation restoration member 120 interposed between the shape deformation prevention and alignment bar 130 and the seating surface 110 can slide in the lateral direction, but When the fixing block 210 approaches the fixing base 100, elastic deformation does not occur in the shape-deformation restoring member 120 interposed between the shape-deformation prevention and alignment bar 130 and the seating surface 110.

That is, the shape deformation prevention and alignment bar 130 is deformed in both edge regions when the central portion 121 of the shape deformation restoration member 120 is deformed convexly upward by the driving of the shape deformation driving unit 200. By preventing this, it is possible to perform a function of setting a region in which shape deformation of the shape deformation restoration member 120 occurs.

In addition to the above-described function, the shape deformation prevention and alignment bar 130 may additionally serve as an alignment reference for aligning and arranging the object 10 to the fixing base 100 .

To this end, as shown in FIGS. 1, 2, and 4 to 6, a pair of shape deformation prevention and alignment bars 130 are provided in a state where they protrude a certain distance from the upper surface of the fixed base 100, The object 10 may be seated on the seating surface 110 in a state in which both sides of the object 10 are supported in contact with a pair of shape deformation prevention and alignment bars 130 .

Here, it is preferable that the distance between the pair of shape deformation prevention and alignment bars 130 is changed in response to the change in width of the object 10, and the object 10 is manually fixed to the base 100 by a robot arm or a worker. ) When seated on the shape deformation prevention and alignment bar 130 can be seated so that the side contact.

In an embodiment of the present invention, the pair of shape deformation prevention and alignment bars 130 may be adjusted to increase or decrease the separation distance between each other by a separate prevention bar movement driver 131, and the prevention bar movement driver 131 ) can be applied in various ways such as cylinders, ball screws, and LM guides.

Next, the transfer unit 300 is movably provided on the upper side of the fixed base 100, and is lifted upward from the seating surface 110 in a state in which the lower side is supported by the shape-deformed shape-deformation restoration member 120. The target object 10 can be transferred to a post-process in a fixedly supported state.

Here, the transfer unit 300 is capable of lateral support of the object 10 seated on the seating surface 110, as well as supporting the lower surface of the object 10 spaced upward from the seating surface 110 from the lower side. can be transported

To this end, as shown in FIGS. 1 and 4 to 6 , the transfer unit 300 includes a transfer base 310, a lateral support guide 320 and a lower support finger 330.

The transfer base 310 can be coupled in a movable state to a separate transfer rail (not shown), and can be transferred to a post-processing line after fixing the object 10 on the upper side of the fixed base 100.

The lateral support guides 320 are provided as a pair to be able to move up and down on the transfer base 310 and approach or separate from each other so as to contact and support both sides of the object 10 seated on the seating surface 110 .

To elaborate, as described above, the object 10 is seated on the upper side of the shape-deformation restoration member 120 in a state where both sides of the object 10 are supported in contact with the shape-deformation prevention and alignment bar 130, as shown in FIGS. 4 to 6 As described above, since the thickness of the object 10 is greater than the height of the shape deformation prevention and alignment bar 130 by a certain amount or more, the object 10 protrudes upward from the shape deformation prevention and alignment bar 130 .

In an embodiment of the present invention, a pair of lateral support guides 320 are provided to contact and support both sides of the central portion in the longitudinal direction of the object 10, respectively, from the shape deformation prevention and alignment bar 130 as described above. The side of the object 10 protruding upward is supported.

In an embodiment of the present invention, the pair of lateral support guides 320 support the side of the object 10 when the object 10 is lifted upward by the elastic deformation of the shape-deformation restoring member 120, thereby (10) can be lifted consistently and safely in a substantially horizontal state on the seating surface 110 without shaking left and right in the initial seated state.

The lateral support guide 320 may move downwardly from the transfer base 310 toward the fixed base 100 and move upwardly, and although not specifically shown in the drawings, toward the side of the object 10 in a downwardly transferred state. Approach movement from side to side or, conversely, distance movement can be performed.

In this way, the driving means for realizing the elevation and horizontal movement of the lateral support guide 320 can be applied in various ways such as a cylinder, a ball screw, and an LM guide.

Next, as shown in FIG. 1 , four lower support fingers 330 may be provided, for example, to correspond to the edge corner area of the object 10 .

The lower support finger 330 may be formed in an approximate 'b' or 'c' shape, and a state in which the bottom surface of the object 10 and the seating surface 110 are spaced apart by driving the shape transformation driving unit 200 In, it is provided on the transfer base 310 so as to move to the inside of the separation space and contact and support the lower surface of the object 10 from the lower side.

Similarly, the lower support finger 330 can move downward from the transfer base 310 toward the fixed base 100 and move upward in the opposite direction. Although not specifically shown in the drawing, it is inserted into the spaced space in a state of downward transfer. It can be moved to the left and right as much as possible or, on the contrary, to move outward from the separation space. In some cases, the lower support finger 330 may be provided in a state in which lifting movement is not possible and only left and right lateral movement is possible. In this way, the driving means for realizing the elevation and horizontal movement of the lateral support guide 320 can be applied in various ways such as a cylinder, a ball screw, and an LM guide.

As shown in FIGS. 1 and 4 to 6 , the transfer unit 300 further includes a plurality of pressing fixing parts 340 for pressing the target object 10 downward.

Here, the pressing fixing part 340 may be provided on each of the four lower support fingers 330, and as shown in FIGS. 4 to 6, the lower support fingers 330 support the lower surface of the object 10. In this state, the upper surface of the object 10 is pressed downward to press and fix the object 10 between the lower support finger 330 .

The upper and lower surfaces of the object 10 upon completion of the operation are supported in contact with each other by the pressure fixing part 340 and the lower support finger 330, and are transferred to the post-processing line in a pressurized state, thereby preventing the object 10 from shaking during transport. so that it can be transported stably.

The pressing fixing part 340 can be moved up and down to be approached or separated from the upper surface of the object 10, and the drive unit for lifting the pressurizing fixing part 340 in this way can be applied as a cylinder, etc., but is not limited thereto, and various linear reciprocating motions. Mobility is applicable.

On the other hand, when the object 10 is applied as an electrode assembly for a secondary battery (a state in which separators and electrodes are alternately stacked) before pouching, the pressure fixing part 340 presses a relatively thin and weak separator, so that the pressure There is a need to prevent tearing or scratching of the time separator.

To this end, in the embodiment of the present invention, it is preferable that the pressure fixing part 340 includes at least one material of plastic, rubber, and silicone having a small hardness and ductility above a certain level.

In the present invention, the shape-deformation restoring member 120 is deformed to lift the object 10 upward to form a separation space between the object 10 and the seating surface 110 so that the lower support finger 330 can be inserted, , The target object 10 can be stably transported in a state in which surface damage or defect occurrence of the target object 10 is prevented as much as possible by being transported in a state in which the lower side is supported by the lower support finger 330 .

In addition, the portion in contact with the bottom surface of the object 10 in a state in which the object 10 is lifted upward is the central portion corresponding to the upper curvature forming portion of the convex shape-deformation restoring member, so that the mutual contact area with the object As the object is lifted in a minimized state, damage to the surface of the object can be maximally prevented.

Hereinafter, a method for lifting and transferring an object according to an embodiment of the present invention will be described.

As shown in FIG. 3 , the object lifting and transferring method according to an embodiment of the present invention includes an object seating step (S100), an object lateral support step (S210), a separation space forming step (S220), and a lower support finger moving step (S300). ), a shape restoration step (S400) of a shape-deformation restoring member, and a pressing and fixing step (S500) of the object.

First, as shown in FIGS. 3 to 6 , the object 10 is seated on the seating surface 110 of the fixing base 100 (S100).

At this time, both sides of the object 10 in the longitudinal direction may be seated in an aligned state at a position supported in contact with a pair of shape deformation prevention and alignment bars 130, and such seating may be performed automatically by a robot arm or by an operator. You can proceed manually.

Next, both sides of the object 10 are contacted and supported to prevent lateral movement of the object 10 (S210).

Specifically, the pair of lateral support guides 320 of the transfer unit 300 are lowered so that both sides of the object 10 can be supported in contact with the lateral support guides 320 for a certain amount or more.

Next, the shape-recovery member 120 is elastically deformed so that the object 10 is spaced upward from the seating surface 110 in a state in which lateral movement is restricted (S220).

Specifically, the shape-deformation drive unit 200 is driven so that the pair of fixing blocks 210 simultaneously approach the fixing base 100 with the same force and speed, and accordingly, the central portion of the shape-deformation restoring member 120 The shape deformation is made so as to be convexly bent upward.

Due to this shape change, the object 10 can be lifted upward, and in the process of being lifted, both sides of the object 10 maintain a contact supported state by a pair of lateral support guides 320, and the object 10 ) can be lifted upward while stably maintaining a horizontal state without tilting to either side. By the upper transfer of the target object 10, a separation space spaced apart by a certain amount or more is formed between the bottom surface of the object 10 and the seating surface 110.

Next, a plurality of lower support fingers 330 are moved to the separation space between the bottom surface of the object 10 and the seating surface 110 (S300).

Here, the lower support finger 330 is preferably moved to be disposed on the lower side of the target object 10 in a non-contact state with the target object 10 . If the lower support finger 330 moves laterally to come into contact with the target object 10, that is, the lower surface of the secondary battery electrode assembly before the pouching operation, the end of the lower support finger 330 holds the electrode assembly during this lateral movement process. Defects in which the separation membrane is torn or the shape of the electrode is deformed may occur due to lateral pressure. Since the driving unit for inserting and moving the lower support finger 330 into the separation space has been described above, a detailed description thereof will be omitted.

Next, the shape deformation restoration member 120 is elastically restored so that the convex shape deformation state of the shape deformation restoration member 120 is removed so that it becomes a flat state as in the initial stage (S400).

Specifically, by driving the shape-deformation driving unit 200, the pair of fixing blocks 210 are simultaneously spaced apart from the fixing base 100 with the same force and speed, and accordingly, the shape-deformation restoring member 120 has a convex shape. The deformed state can be removed and the shape can be restored to a flat, unfolded state as in the beginning of the work.

At this time, since the state in which the lower part of the object 10 is supported by the shape-deformation restoring member 120 is released, the object 10 falls downward by more than a certain amount due to its own weight, and accordingly, the lower surface of the object 10 has a plurality of It is in a state of contact support by the lower support finger 330 .

That is, until step S300, the object 10 has a state in which the object 10 is supported downward by the shape-shifting restoring member 120, but has a state in which it is supported downward by the downward support finger 330 after step S400.

Next, the upper surface of the object 10 is pressed downward to press and fix the object 10 between the lower support finger 330 (S500). Specifically, it is possible to press and fix the target object 10 to the lower support finger 330 with a certain pressure or more by transferring the plurality of pressing fixing parts 340 downward.

In an embodiment of the present invention, steps S400 and S500 may be performed temporally simultaneously, or steps S500 may be performed with a predetermined time difference. In the case of the former, compared to the case of the latter, the work time required for the entire work process can be reduced by a certain amount or more, and productivity can be improved.

In an embodiment of the present invention, in step S500, it is preferable that the lower side of the object 10 is pressed in a state in which the lateral movement of the object 10 is prevented.

In addition, when the target object 10 is pressed by the lower support fingers 330 in a state in which both sides of the object 10 are not supported by the pair of lateral support guides 320, the pressurized by the lower support fingers 330 While this is done, the aligned arrangement state of the object 10 may be released. That is, a situation may occur in which the object 10 rotates more than a certain amount in the left and right or forward and backward directions at the moment when the pressure is applied by the lower support finger 330. It is preferable to press the lower side of the object 10 in a state in which lateral movement of the object 10 is prevented so that smooth work continuity is achieved by transferring the object 10 to the line.

Next, the pair of lateral support guides 320 are transferred upward, and then the transfer unit 300 is transferred to the post-processing line.

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed according to the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

10: object 100: fixed base
120: shape deformation restoration member 122: bending unit
130: shape deformation prevention and alignment bar 200: shape deformation drive unit
210: fixed block 220: forward and backward moving unit
300: transfer unit 310: transfer base
320: lateral support guide 330: lower support finger
340: pressure fixing part

Claims (15)

a fixing base having a seating surface on which an object is seated, and a shape-deformation restoring member capable of elastically deforming and restoring a shape on the seating surface; and
It is provided on both sides of the fixing base, and a pair of shape-deformation driving units are formed by pressing both edges of the shape-deformation restoration member toward the center portion to deform the shape to separate the bottom surface of the object and the seating surface. Object lifting and transporting device. According to claim 1,
Each of the pair of shape-transforming driving units,
a fixing block fixed to both edges of the shape-deformation restoring member; and
And a forward and backward movement unit for moving the fixed block forward and backward,
The object elevation and transport device, characterized in that the central portion of the shape-deformation restoring member is convexly deformed so that the bottom surface of the object and the seating surface are spaced apart. According to claim 2,
Bending parts bent with respect to the central portion are provided at both edges of the shape-deformation restoring member, and the bending parts are integrally fixed to the fixing block. According to claim 1,
In the base,
It is provided so as to be able to contact the upper surface of the set edge regions of the shape-deformation restoration member, and when the central portion is convexly deformed by driving the shape-transformation driving unit, shape deformation of the edge regions on both sides is prevented and the An object lifting and transporting device, characterized in that a plurality of shape deformation prevention and aligning bars capable of aligning and disposing the object are further provided. According to claim 4,
The plurality of shape deformation prevention and alignment bars are provided in a state in which they protrude a certain distance from the upper surface of the fixing base,
The object elevation and transfer device, characterized in that the object is seated on the seating surface in a state in which both sides of the object are supported in contact with the plurality of shape deformation prevention and alignment bars. According to claim 1,
The object elevation and transfer device, characterized in that the shape-deformation restoring member is a plate spring. According to claim 1,
It is movably provided on the upper side of the fixed base and further comprises a transfer unit capable of transporting the target object spaced apart from the seating surface in a fixedly supported state,
The transfer unit,
The object elevation and transport device, characterized in that the object seated on the seating surface can be supported laterally and transported while supporting the bottom surface of the object upwardly spaced from the seating surface from the lower side. According to claim 7,
The transfer unit,
transfer base;
a pair of lateral support guides provided to be able to move up and down and approach or separate from each other on the transfer base so as to contact and support both sides of the object seated on the seating surface; and
In a state in which the bottom surface of the object and the seating surface are spaced apart by driving the shape-deformation driving unit, a plurality of lower supports provided on the transfer base move to the inside of the separation space and contact and support the bottom surface of the object from the lower side. Object lifting and conveying device characterized in that it comprises a finger. According to claim 8,
The transfer unit,
In a state in which the lower support finger supports the lower surface of the object, the upper surface of the object is pressed downward to press and fix the object between the lower support finger characterized in that it further comprises a plurality of pressing and fixing parts object lifting and transporting device. According to claim 9,
The plurality of pressing and fixing parts include at least one material of plastic, rubber, and silicone having a certain level of ductility. According to claim 1,
The object lifting and transporting device, characterized in that the object is an electrode assembly for a secondary battery before a pouching operation or a pouched secondary battery cell. (a) seating the object on a seating surface of the object lifting and transporting device of claim 1;
(b) separating the bottom surface of the object and the seating surface by driving the shape-transformation driving unit so that the central portion of the shape-transformation restoration member is convexly deformed;
(c) moving a plurality of lower support fingers into a space between the bottom surface of the object and the seating surface;
(d) elastically restoring the shape-shifting restoring member so that the convex shape-deformed state of the shape-shifting restoring member is removed; and
(e) Pressing and fixing the object between the lower support finger by pressing the upper surface of the object downward. According to claim 12,
In step (b),
(b1) contacting and supporting both sides of the object to prevent lateral movement of the object; and
(b2) elastically deforming the shape-deformation restoring member so that the object is spaced upward from the seating surface in a state in which lateral movement is restricted. According to claim 12,
In the step (e), the lower side of the object is pressed in a state in which the lateral movement of the object is prevented. According to claim 11,
The object elevation transfer method, characterized in that the object is an electrode assembly for a secondary battery before being pouched or a pouched secondary battery cell.

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