KR102652673B1 - object lifting and transporting apparatus and lifting and transporting method - Google Patents

Abstract

An object lifting and transporting device is disclosed. The apparatus for lifting and transporting an object of the present invention includes a fixed base provided with a seating surface on which an object is seated, and a shape deformation restoration member capable of elastically deforming and restoring shape on the upper part of the seating surface; A pair of shape deformation drive units provided on both sides of the fixed base and deforming the shape by pressing both edges of the shape deformation restoration member toward the center to space the bottom surface of the object and the seating surface; and a transfer unit movably provided on an upper side of the fixed base and capable of transporting the object spaced apart from the seating surface while fixedly supporting it. According to the present invention, by adopting a method of lifting the object upward by a certain amount using the shape deformation of the shape deformation restoration member and then transporting the object to the post-processing line while supporting it from below, the object is transferred to the post-process line in the process of transporting the object. , for example, it is possible to prevent surface damage or tearing of the separator surface of the electrode assembly for secondary batteries before pouching work, and to transport the object stably.

Description

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

The present invention relates to an object lifting and transporting device and a lifting and transporting method for transporting an object on which pre-work has been completed on a fixed base for subsequent processing.

Unlike primary batteries, secondary batteries, which can be charged and discharged, are being actively researched and produced through development in cutting-edge fields such as digital cameras, cellular phones, laptop computers, hybrid cars, and electric vehicles. Secondary batteries include nickel-cadmium batteries, nickel-metal hydride batteries, nickel-hydrogen batteries, and lithium secondary batteries.

There are two main ways to manufacture the internal cell stack of a secondary battery. In the case of small secondary batteries, the method of placing the negative and positive plates on a separator and winding them to form a jelly-roll is often used, and in the case of medium to large secondary batteries with more electric capacity, the method is often used. A method of manufacturing a cathode plate, an anode plate, and a separator by stacking them in an appropriate order is often used.

There are several ways to manufacture the internal cell stack of secondary batteries by stacking them. Among them, in the Z-folding (also known as Z-folding, zigzag folding, or accordion folding) method, the separator is folded in a zigzag shape, with The negative and positive plates are stacked in an alternating manner.

Conventionally, electrodes and separators were stacked multiple times on a stage, and the stacked electrode assembly was clamped using a separate robot arm, removed from the stage, and then transferred to a post-processing line.

Specifically, first, a method is used in which the outer surface (separator) of the electrode assembly is vacuum-adsorbed using a vacuum suction pad, etc., and then the electrode assembly is transferred to a post-processing line using a robot arm.

Second, a method is used in which the completed electrode assembly is pushed to the side or upward on the stage by applying a certain amount of pressure, and then the electrode assembly is clamped using a robot arm and then transferred to the post-processing line.

However, both of the above-mentioned methods adopt a method of vacuum adsorbing or pressurizing the separator, which is a relatively thin and weak material, to a certain level of pressure, so that the separator may be torn or the surface damaged during the process of separating the electrode assembly from the stage and transferring it to the post-process. There was a problem of frequent electrode assembly defects due to scratches occurring in the electrode.

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

The present invention was developed to solve the above-described conventional problems, and reduces the defect occurrence rate by preventing surface damage or tearing of the object during the process of lifting the object on which work has been completed on a fixed base and transferring it to the post-processing line. The purpose is to provide an object lifting and transporting device and a lifting and transporting method that can reduce the cost and stably transport the object.

According to one aspect of the present invention, a fixed base is provided with a seating surface on which an object is seated, and a shape deformation restoration member capable of elastically deforming and restoring its shape is provided on the upper part of the seating surface; And a pair of shape deformation driving units provided on both sides of the fixed base, respectively, which press both edges of the shape deformation restoration member toward the central portion to deform the shape and thereby space the bottom surface of the object and the seating surface. An object lifting and transporting device is provided.

The pair of shape deformation drive units each include fixing blocks fixed to both edges of the shape deformation restoration member; and a forward and backward moving part that moves the fixed block forward and backward, wherein the central portion of the shape deformation restoration member is deformed to be convex, thereby separating the bottom surface of the object and the seating surface.

Bending parts that are bent with respect to the central part are provided at both edges of the shape deformation restoration member, and the bending parts can be integrally fixed to the fixing block.

The base is provided so as to be able to contact the upper surfaces of both edge areas of the shape deformation restoration member, and prevents the shape deformation of the both edge areas when the central portion is deformed convexly by driving the shape deformation driving unit. In addition, a plurality of shape deformation prevention and alignment bars capable of aligning the object may be further provided.

The plurality of shape deformation prevention and alignment bars are provided to protrude a certain distance from the upper surface of the fixed base, and the object can be seated on the seating surface with both sides of the shape being supported in contact with the plurality of shape deformation prevention and alignment bars. there is.

The shape deformation restoration member may be a leaf spring.

It further includes a transfer unit movably provided on an upper side of the fixed base and capable of transporting the object spaced apart from the seating surface while fixedly supporting it, wherein the transfer unit moves the object seated on the seating surface laterally. Not only can it be supported, but it can also be transported while supporting the bottom of the object, which is spaced upward from the seating surface, from the lower side.

The transfer unit includes a transfer base; a pair of lateral support guides provided on the transfer base to be raised and lowered and accessible or spaced apart from each other so as to contact and support both sides of the object seated on the seating surface; and a plurality of lower surfaces provided on the transfer base to move inside the space to contact and support the bottom surface of the object from below in a state where the bottom surface of the object and the seating surface are spaced apart by driving the shape deformation drive unit. It may include support fingers.

The transfer unit further includes a plurality of pressure fixing units that pressurize and fix the object between the lower support fingers by pressing the upper surface of the object downward while the lower support finger supports the bottom surface of the object. It can be included.

The plurality of pressure fixing parts may include at least one material selected from the group consisting of plastic, rubber, and silicone, which has a certain level of ductility.

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

According to another aspect of the present invention, (a) seating the object on the seating surface of the object lifting and transporting device; (b) driving the shape deformation driving unit so that the central portion of the shape deformation restoration member is deformed to be convex, thus spaced between the bottom surface of the object and the seating surface; (c) moving a plurality of lower support fingers into a space between the bottom of the object and the seating surface; (d) elastically restoring the shape deformation restoration member so that the convex shape deformation state of the shape deformation restoration member is removed; and (e) pressing and fixing the object between the lower support fingers by pressing the upper surface of the object downward.

Step (b) includes: (b1) contacting and supporting both sides of the object to prevent lateral movement of the object; and (b2) elastically deforming the shape deformation restoration member so that the object is spaced upward from the seating surface in a state in which lateral movement is restricted.

In step (e), the lower side of the object may be pressed in a state in which 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 transport method of the present invention described above, the object is lifted upward for a certain amount of time using the shape deformation of the shape deformation restoration member, and then transported to the post-processing line while supporting the object from below. By adopting the method, damage or tearing of the surface of the separator of the object, for example, an electrode assembly for a secondary battery before pouching, can be prevented during the process of transporting the object, and the object can be transported stably.

In addition, when the object is lifted upward, the part in contact with the bottom of the object is the central part corresponding to the upper curvature of the shape deformation restoration member that has been deformed in a convex shape, minimizing the mutual contact area with the object. By lifting the object, damage to the surface of the object can be prevented as much as possible.

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

1 is a perspective view showing an object lifting and transporting 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 flowchart showing a method for lifting and transporting an object according to an embodiment of the present invention;
4 to 6 are diagrams sequentially showing a method for lifting and transporting 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 attached drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. These embodiments only serve to ensure that the disclosure of the present invention is complete and to those skilled in the art to fully convey the scope of the invention. This is provided to inform you. In the drawings, like symbols refer to like elements.

The object lifting and transporting device and lifting and transporting method according to a preferred embodiment of the present invention are for transporting an object on which pre-work has been completed on a fixed base for subsequent processing. In particular, the process of lifting and transporting an object seated on a fixed base is carried out. By preventing scratches, tears, etc. from occurring on the surface of the object, it is possible to reduce the occurrence of product defects and ensure stable quality.

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

As shown in Figures 1 and 2, the object lifting and transporting device according to an embodiment of the present invention is for transporting an object on which pre-work has been completed on a fixed base for subsequent processing, and the object 10 is pouched as an example. It can be applied to electrode assemblies for secondary batteries before work or pouched secondary battery cells. However, it is not limited to this, and of course, the object 10 can be applied in various ways other than the examples described above. Hereinafter, the description will be based on the case where the object 10 is applied as an electrode assembly for a secondary battery before the pouching operation.

As shown in FIGS. 1, 2, and 4 to 6, the object lifting and transporting device according to an embodiment of the present invention includes a fixed base 100, a shape deformable drive unit 200, and a transport unit 300. .

First, the fixed 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 deforming and restoring its shape is provided on the upper part of the seating surface. The shape deformation restoration member 120 can be freely elastically deformed/restored by external force, and can be applied as, for example, a leaf spring in the present invention.

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

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

In an embodiment of the present invention, a pair of shape deformable drive units 200 each include a fixed block 210 and a forward and backward moving unit 220.

The fixing block 210 is formed to have a length that is at least a certain length longer than the length of the object 10, and is fixed to both edges of the shape deformation restoration member 120, specifically in FIGS. 1, 2, 4 to 6. As shown, the bending portion 122 of the shape deformation restoration member 120 is integrally fixed to the fixing block 210. For example, the bending portion 122 can be integrally fixed using methods such as screwing, rivets, and welding.

Therefore, as the pair of fixing blocks 210 provided on both left and right sides of the fixing base 100 move simultaneously to approach the fixing base 100, the central portion 121 of the shape deformation restoration member 120 is convex upward. Shape deformation may occur. That is, in the present invention, the central portion 121 of the shape deformation restoration member 120 is deformed to be convex upward, thereby separating the bottom surface of the object 10 and the seating surface 110. In addition, by simultaneously moving the pair of fixing blocks 210 in a direction away from the fixing base 100, the deformed shape restoration member 120 can be elastically restored to a flat state.

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

Specifically, as shown in Figures 1 and 2, a pair of guide rails 221 are provided on the installation floor surface to intersect with the arrangement direction of the fixed block 210, and reciprocating movement along the guide rails 221 A pair of moving blocks 222 are provided to make this possible, and one fixed block 210 is integrally coupled to the pair of moving blocks 222. In addition, the forward and backward moving part 220 that substantially approaches or separates the fixed block 210 from the fixed base 100 includes a motor, etc., and by driving the motor, the fixed block 210 is connected to a pair of guide rails. Guided by 221 and the moving block 222, it can move in a straight line back and forth. However, it is not limited to this, and the forward and backward moving part for linearly moving the fixed block 210 can be applied in various other forms.

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

The shape deformation prevention and alignment bar 130 is provided to be in contact with the upper surface of both edge areas of the shape deformation restoration member 120, and is provided long along both edges in the longitudinal direction of the fixed base 100.

The edge areas on both sides of the shape deformation restoration member 120 are disposed between the shape deformation prevention and alignment bar 130 and the seating surface 110, and specifically, the bottom surface of the edge area of the shape deformation restoration member 120. is in contact with the seating surface 110, and its upper surface is in contact with the bottom surface of the shape deformation prevention and alignment bar 130. Accordingly, when the shape deformation drive 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. In a state in which the fixing block 210 approaches the fixing base 100, no elastic deformation occurs in the shape deformation restoration 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 deforms the shape of both edge areas when the central portion 121 of the shape deformation restoration member 120 is deformed to be convex upward by driving the shape deformation drive unit 200. By preventing this, it is possible to perform the function of setting the area where the shape deformation of the shape deformation restoration member 120 occurs.

In addition to the above-described functions, the shape deformation prevention and alignment bar 130 may additionally serve as an alignment reference for aligning the object 10 on the fixed 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 to protrude a certain distance from the upper surface of the fixed base 100, The object 10 may be seated on the seating surface 110 with both sides of the object 10 in contact with and supported by a pair of shape deformation prevention and alignment bars 130 .

Here, the distance between the pair of shape deformation prevention and alignment bars 130 is preferably 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 an operator. ) When seated on the surface, it can be seated so that its side contacts the alignment bar 130 to prevent shape deformation.

In an embodiment of the present invention, a pair of shape deformation prevention and alignment bars 130 can be adjusted to increase or decrease the spacing between them by a separate anti-bar movement driving unit 131, and the anti-bar movement driving unit 131 ) can be applied to various applications 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 with the lower side supported by the shape deformed restoration member 120. The object 10 can be transported to a later process while being fixed and supported.

Here, the transfer unit 300 not only supports the object 10 seated on the seating surface 110 laterally, but also supports the bottom surface of the object 10 spaced upward from the seating surface 110 from the lower side. It 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 movably coupled to a separate transfer rail (not shown), and the object 10 can be fixed on the upper side of the fixed base 100 and then transferred to a post-processing line.

The lateral support guides 320 are provided in pairs so as to contact and support both sides of the object 10 seated on the seating surface 110 so as to be able to lift and lower the transfer base 310 and approach or separate from each other.

To elaborate, as described above, the object 10 is seated on the upper side of the shape deformation restoration member 120 with both sides of the object 10 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, 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 longitudinal central portion of the object 10, and as described above, are provided to prevent shape deformation and from the alignment bar 130. 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 sides of the object 10 when the object 10 is lifted upward by elastic deformation of the shape deformation restoration member 120, thereby (10) can be lifted consistently and safely in an approximately horizontal state on the seating surface 110 without shaking left or right in the initial seated state.

The lateral support guide 320 may move downward or upward from the transfer base 310 toward the fixed base 100. Although not specifically shown in the drawing, the lateral support guide 320 may move toward the side of the object 10 in the downward transfer state. You can move closer to the left or right or move away from the other side.

In this way, various driving means for realizing the elevation and left and right movement of the lateral support guide 320 can be applied, such as cylinders, ball screws, and LM guides.

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

The lower support finger 330 may be approximately in the shape of a 'ㄴ' or 'ㄷ' shape, and the bottom surface of the object 10 and the seating surface 110 are spaced apart by driving the shape deformation drive unit 200. , it is provided on the transfer base 310 to move inside the spaced space and contact and support the bottom surface of the object 10 from the lower side.

Likewise, the lower support finger 330 can move downward or upward from the transfer base 310 toward the fixed base 100, and although not specifically shown in the drawing, is inserted into the space in the downward transfer state. If possible, it can be moved to the left or right, or conversely, can be moved to move outward from the space. In some cases, the lower support finger 330 may not be able to move up and down and may only be able to move left and right laterally. In this way, various driving means for realizing the elevation and left and right movement of the lateral support guide 320 can be applied, such as cylinders, ball screws, and LM guides.

As shown in FIGS. 1 and 4 to 6 , the transfer unit 300 further includes a plurality of press fixing units 340 that press the object 10 downward.

Here, the pressure 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 bottom of the object 10. In this state, the upper surface of the object 10 is pressed downward and the object 10 is pressed and fixed between the lower support fingers 330.

The object 10 on which the work has been completed is transported to the post-processing line in a pressurized state with its upper and lower surfaces being supported in contact by the pressure fixing part 340 and the lower support finger 330, thereby preventing the object 10 from shaking during transport. This allows stable transport.

The pressure fixing part 340 can move up and down to approach or separate from the upper surface of the object 10, and the driving part for raising and lowering the pressure fixing part 340 can be applied as a cylinder, but is not limited to this and can be used in various straight reciprocating motions. Any means of transportation 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 the pouching operation, the pressure fixing part 340 presses the relatively thin and weak separator, so that the pressure It is necessary to prevent the separator from being torn or scratched.

To this end, in an embodiment of the present invention, the pressure fixing part 340 preferably includes at least one material selected from the group consisting of plastic, rubber, and silicon, which has a certain level of hardness and ductility.

The present invention lifts the object 10 upward by deforming the shape deformation restoration member 120 to form a space between the object 10 and the seating surface 110 so that the lower support finger 330 can be inserted. , the object 10 is transported while being supported downward by the lower support finger 330, so that the object 10 can be stably transported while preventing surface damage or defects from occurring as much as possible.

In addition, when the object 10 is lifted upward, the part in contact with the bottom of the object is the central part corresponding to the upper curvature forming part of the shape deformation restoration member that has been deformed in a convex shape, thereby reducing the mutual contact area with the object. By lifting the object in a minimal state, damage to the surface of the object can be prevented as much as possible.

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

As shown in Figure 3, the object lifting and transporting 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 downward support finger moving step (S300). ), a shape restoration step of the shape deformation restoration member (S400), and a step of pressurizing and fixing the object (S500).

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

At this time, both longitudinal sides of the object 10 can be seated in an aligned state in a position supported by contact with a pair of shape deformation prevention and alignment bars 130, and this seating can be done automatically by the robot arm or by the operator. It can be done 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 contacted and supported by the lateral support guides 320 for a certain period or more.

Next, the shape deformation restoration member 120 is elastically deformed so that the object 10 is spaced upward from the seating surface 110 with its lateral movement restricted (S220).

Specifically, the shape deformation drive unit 200 is driven so that a pair of fixing blocks 210 approach the fixed base 100 at the same time with the same force and speed, and accordingly, the central portion of the shape deformation restoration member 120 is The shape is transformed to bend convexly upward.

Due to this shape deformation, the object 10 can be lifted upward, and during the lifting process, both sides of the object 10 are maintained in contact and supported by a pair of lateral support guides 320, so that the object 10 ) can be lifted upward while stably maintaining a horizontal state without tilting to one side. As the object 10 is transported upward, a space spaced apart from the bottom of the object 10 and the seating surface 110 by a certain distance is formed.

Next, the plurality of lower support fingers 330 are moved to the space between the bottom 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 object 10 in a non-contact state. If the lower support finger 330 moves laterally to contact the object 10, that is, the bottom of the secondary battery electrode assembly before the pouching operation, the end of the lower support finger 330 touches the electrode assembly during this lateral movement process. Pressure from the side may cause the separator to tear or the electrode to deform in shape. Since the driving unit for inserting and moving the lower support finger 330 into the space has been described above, detailed description will be omitted below.

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 flat as in the initial state (S400).

Specifically, the shape deformation drive unit 200 is driven to cause a pair of fixing blocks 210 to be spaced apart from the fixed base 100 at the same time with the same force and speed, and accordingly, the shape deformation restoration member 120 has a convex shape. The deformation state is removed and the shape can be restored to a flat, unfolded state as at 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 restoration member 120 is released, the object 10 falls downward by a certain amount due to its own weight, and as a result, the bottom of the object 10 has a plurality of It is in a state of being contacted and supported by the lower support finger 330.

That is, the object 10 is supported downward by the shape deformation restoration member 120 until step S300, but is supported downward by the lower support finger 330 from step S400 onwards.

Next, the upper surface of the object 10 is pressed downward and the object 10 is pressurized and fixed between the lower support fingers 330 (S500). Specifically, the plurality of pressure fixing units 340 can be moved downward to press and fix the object 10 toward the lower support finger 330 with a pressure of a certain level or more.

In an embodiment of the present invention, steps S400 and S500 may be performed simultaneously in time, and step S500 may be performed with a certain time difference. In the former case, compared to the latter case, the working time required for the entire work process can be shortened by a certain amount, thereby improving productivity.

In an embodiment of the present invention, in step S500, it is preferable that the object 10 is pressed downward while the lateral movement of the object 10 is prevented.

In addition, when the object 10 is pressed on both sides by the lower support fingers 330 while the object 10 is not supported on both sides by the pair of lateral support guides 320, the pressure by the lower support fingers 330 As this is accomplished, the alignment state of the object 10 may be released. In other words, at the moment when pressure is applied by the lower support finger 330, a situation may occur in which the object 10 rotates left and right or in the forward and backward directions for a certain amount of time, and the object 10 is maintained in an aligned state during the post-process. It is preferable that the lower side of the object 10 is pressed while preventing lateral movement of the object 10 to ensure smooth work continuity during transfer 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-process line.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications and variations will be possible to those skilled in the art without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

10: object 100: fixed base
120: Shape deformation restoration member 122: Bending part
130: Shape deformation prevention and alignment bar 200: Shape deformation drive unit
210: fixed block 220: forward and backward moving part
300: transfer unit 310: transfer base
320: Lateral support guide 330: Downward support finger
340: Pressure fixing unit

Claims (15)

A fixed base provided with a seating surface on which an object is seated, and a shape deformation restoration member capable of elastically deforming and restoring its shape is provided on the upper part of the seating surface; and
It is provided on both sides of the fixed base, and includes a pair of shape deformation drive units that press both edges of the shape deformation restoration member toward the center to deform the shape and space the bottom surface of the object and the seating surface. ,
Each of the pair of shape deformation drive units,
Fixing blocks fixed to both edges of the shape deformation restoration member; and
It includes a forward and backward moving part that moves the fixed block forward and backward,
An object lifting and transporting device characterized in that the central portion of the shape deformation restoration member is convexly deformed to space the bottom surface of the object and the seating surface. delete According to paragraph 1,
The object lifting and transporting device is characterized in that bending parts that are bent with respect to the central part are provided on both edges of the shape deformation restoration member, and the bending parts are integrally fixed to the fixing block. According to paragraph 1,
In the base,
It is provided so as to be able to contact the upper surfaces of the set edge areas on both sides of the shape deformation restoration member, and when the central portion is deformed convexly by driving the shape deformation driving unit, it not only prevents the shape deformation of the edge areas on both sides, but also prevents the deformation of the shape of the edge areas on both sides. An object lifting and transporting device further comprising a plurality of shape deformation prevention and alignment bars capable of aligning the object. According to paragraph 4,
The plurality of shape deformation prevention and alignment bars are provided to protrude a certain distance from the upper surface of the fixed base,
The object lifting and transporting device is characterized in that the object is seated on the seating surface in a state in which both sides are supported in contact with the plurality of shape deformation prevention and alignment bars. According to paragraph 1,
The object lifting and transporting device is characterized in that the shape deformation restoration member is a leaf spring. According to paragraph 1,
It further includes a transfer unit movably provided on an upper side of the fixed base and capable of transporting the object spaced apart from the seating surface while fixedly supporting it,
The transfer unit is,
An object lifting and transporting device capable of supporting the object seated on the seating surface laterally and transporting the object while supporting its bottom surface, which is spaced upward from the seating surface, from the lower side. In clause 7,
The transfer unit is,
transfer base;
a pair of lateral support guides provided on the transfer base to be raised and lowered and accessible or spaced apart from each other so as to contact and support both sides of the object seated on the seating surface; and
In a state where the bottom of the object and the seating surface are spaced apart by driving the shape deformation drive unit, a plurality of downward supports provided on the transfer base move inside the space to contact and support the bottom of the object from the bottom. An object lifting and transporting device comprising fingers. According to clause 8,
The transfer unit is,
In a state in which the lower support finger supports the bottom of the object, the object is pressed downward and the lower support finger further includes a plurality of pressure fixing parts that pressurize and fix the object between the lower support fingers. A device that lifts and transports objects. According to clause 9,
An object lifting and transporting device, wherein the plurality of pressurizing fixing parts include at least one material selected from the group consisting of plastic, rubber, and silicon having a certain level of ductility. According to paragraph 1,
An object lifting and transporting device, wherein the object is an electrode assembly for a secondary battery before pouching or a pouched secondary battery cell. (a) placing the object on the seating surface of the object lifting and transporting device of claim 1;
(b) driving the shape deformation driving unit so that the central portion of the shape deformation restoration member is deformed to be convex, thus spaced between the bottom surface of the object and the seating surface;
(c) moving a plurality of lower support fingers into a space between the bottom of the object and the seating surface;
(d) elastically restoring the shape deformation restoration member so that the convex shape deformation state of the shape deformation restoration member is removed; and
(e) A method of lifting and transporting an object including the step of pressurizing and fixing the object between the lower support fingers by pressing the upper surface of the object downward. According to clause 12,
In step (b),
(b1) contacting and supporting both sides of the object to prevent lateral movement of the object; and
(b2) A method for lifting and transporting an object, comprising the step of elastically deforming the shape deformation restoration member so that the object is spaced upward from the seating surface in a state in which lateral movement is restricted. According to clause 12,
The step (e) is a method of lifting and transporting an object, characterized in that the lower side of the object is pressed in a state in which lateral movement of the object is prevented. According to clause 12,
A method of lifting and transporting an object, 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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