CN218482296U

CN218482296U - Automatic lamination mechanism of electric core

Info

Publication number: CN218482296U
Application number: CN202222257841.3U
Authority: CN
Inventors: 郭家虎; 邓小龙; 杨帅
Original assignee: Shenzhen Hehe Automation Co ltd
Current assignee: Shenzhen Hehe Automation Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2023-02-14
Anticipated expiration: 2032-08-26

Abstract

The utility model relates to the field of battery cell production, and discloses an automatic lamination mechanism of a battery cell, which comprises a lifting module, a pressing mechanism and a traversing mechanism; the lifting module comprises a driver and a lamination platform, and the driver is connected with the lamination platform and is used for driving the lamination platform to lift; the pressing mechanism comprises a first driving mechanism, a second driving mechanism and two pressing plates which are sequentially connected, the two pressing plates are located on different sides of the lamination platform, the first driving mechanism is used for driving the second driving mechanism and the two pressing plates to lift together, and the second driving mechanism is used for driving the two pressing plates to approach to or separate from each other along the horizontal direction; the transverse moving mechanism is connected with the lifting module and the pressing mechanism and is used for driving the lifting module and the pressing mechanism to do reciprocating transverse moving movement along the horizontal direction. The automatic operation that piles up in proper order of positive plate, diaphragm and negative pole piece that has realized of this application, and then improve the production efficiency of electric core by a wide margin.

Description

Automatic lamination mechanism of electric core

Technical Field

The utility model relates to a technical field of electricity core production especially relates to an automatic lamination mechanism of electricity core.

Background

At present, most of lithium ion battery cells are formed by sequentially and circularly stacking a positive plate, a diaphragm and a negative plate, wherein the diaphragm on each layer is a connected integrated piece, namely, in the structure of the battery cell, the diaphragm is in a wavy structure which is bent in a reciprocating manner along the stacking direction. In order to improve the production efficiency of the battery cell, a mechanism capable of automatically stacking the positive plate, the diaphragm and the negative plate in sequence needs to be developed urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic lamination mechanism of electricity core to automatically, realize the lamination operation that positive plate, diaphragm and negative pole piece pile up in proper order, and then improve the production efficiency of electricity core by a wide margin.

To achieve the purpose, the utility model adopts the following technical proposal:

an automatic lamination mechanism for a cell, comprising:

the lifting module comprises a driver and a lamination platform, and the driver is connected with the lamination platform and used for driving the lamination platform to ascend or descend;

the pressing mechanism comprises a first driving mechanism, a second driving mechanism and two pressing plates which are sequentially connected, the two pressing plates are positioned on different sides of the lamination platform and above the lamination platform, the first driving mechanism is used for driving the second driving mechanism and the two pressing plates to ascend or descend together, and the second driving mechanism is used for driving the two pressing plates to approach or separate from each other along the horizontal direction;

and the transverse moving mechanism is connected with the lifting module and the pressing mechanism and is used for driving the lifting module and the pressing mechanism to do reciprocating transverse movement along the horizontal direction together.

In one embodiment, the pressing mechanism further comprises two third driving mechanisms;

the third driving mechanism is connected with the second driving mechanism and the pressure plate and is used for driving the pressure plate to ascend or descend;

and the other third driving mechanism is connected with the second driving mechanism and the other pressing plate and is used for driving the other pressing plate to ascend or descend.

In one embodiment, the third driving mechanism comprises a cylinder for external air to enter and a piston block connected to the cylinder and capable of ascending or descending relative to the cylinder when air is present in the cylinder;

one of the cylinder body and the piston block is connected with the second driving mechanism, and the other is connected with the pressing plate.

In one embodiment, the direction in which the second driving mechanism drives the pressing plate to move is perpendicular to the direction in which the traverse mechanism drives the lifting module to move.

In one embodiment, the second driving mechanism comprises a mounting seat, a motor, a driving wheel, a driven wheel and a transmission belt;

the driven wheel is rotationally connected with the mounting seat, the driving wheel and the driven wheel are sleeved with the transmission belt, and the motor is connected with the mounting seat and the driving wheel and is used for driving the driving wheel to rotate; the mounting seat is connected with the first driving mechanism, and the two pressing plates are connected with the transmission belt.

In one embodiment, the two pressing mechanisms are provided, and the mounting seats on the two pressing mechanisms and the first driving mechanisms on the two pressing mechanisms are commonly arranged around the periphery of the driver.

In one embodiment, the transverse moving mechanism comprises a base, a first motor, a first screw rod, a first nut and a transverse moving seat;

the first motor is connected with the base, the first lead screw is rotatably connected with the base, the axial direction of the first lead screw is along the horizontal direction, the first motor is connected with the first lead screw, the first nut is in threaded connection with the first lead screw, the transverse moving seat is connected with the first nut, and the lifting module and the pressing mechanism are connected to the transverse moving seat.

In one embodiment, the driver comprises a base, a second motor, a second screw rod, a second nut and an adapter plate;

the second motor is connected with the base, the second lead screw is rotatably connected with the base, the axial direction of the second lead screw is along the vertical direction, the second motor is connected with the second lead screw, the second nut is in threaded connection with the second lead screw, the adapter plate is connected with the second nut, the base is connected with the transverse moving mechanism, and the adapter plate is connected with the lamination platform.

In one embodiment, the first driving mechanism comprises a fixed seat, a third motor, a third screw rod and a third nut;

the third motor is connected with the fixed seat, the third lead screw is rotatably connected with the fixed seat, the axial direction of the third lead screw is along the vertical direction, the third motor is connected with the third lead screw, a third nut is in threaded connection with the third lead screw, the mounting seat is connected with the third nut, and the fixed seat is connected with the transverse moving mechanism.

Compared with the prior art, the utility model provides an automatic lamination mechanism of electricity core has following beneficial effect at least:

before work, firstly, lay and fix the diaphragm on the automatic unwinding mechanism of the diaphragm outside on the lamination platform in advance, namely, at this moment, lay a layer of diaphragm on the lamination platform in advance, in operation, firstly, stack the positive plate on the diaphragm through manual work or manipulator, then two pressing plates on the pressing mechanism exert downward pressure on the diaphragm and the positive plate, make diaphragm and positive plate both can stabilize reliably on the lamination platform, then the traversing mechanism drives the lifting module and the pressing mechanism to do the traversing movement simultaneously, at this moment, because the traversing of the lamination platform leads to the automatic second layer of diaphragm laying on the top of the positive plate, immediately the driver drives the lamination platform to descend for a certain distance, make the height of the negative plate required to be laid on the lamination platform the same as the height of the positive plate required to be laid before, then two pressing plates on the pressing mechanism leave the positive plate, immediately, stack the negative plate on the second layer of diaphragm through manual work or robot, then two pressing plates on the pressing mechanism exert downward pressure on the first layer of diaphragm, the positive plate, the second layer of diaphragm and negative plate exert downward pressure on the first layer of diaphragm, make the positive plate and negative plate reliably, make the diaphragm, the positive plate and the negative plate can both can be laid on the battery core, thereby the automatic unwinding mechanism can be lifted and the efficiency of the battery cell to be lifted by a large scale, the three-layer of the battery cell is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic structural diagram of an automatic lamination mechanism for battery cells according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a transverse moving mechanism provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a lifting module according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of two pressing mechanisms provided in the embodiment of the present application;

FIG. 5 is a schematic structural diagram of two first driving mechanisms provided in the embodiments of the present application;

fig. 6 is a schematic structural view of the two pressing mechanisms shown in fig. 4 after the respective first driving mechanisms are hidden.

Wherein, in the figures, the respective reference numerals:

10. a traversing mechanism; 101. a base; 102. a first motor; 103. a first lead screw; 104. a first nut; 105. a traversing seat; 106. a first guide rail;

20. a lifting module; 201. a driver; 2011. a base; 2012. a second motor; 2013. a second lead screw; 2014. a second nut; 2015. a patch panel; 2016. a second guide rail; 202. a lamination platform;

30. a pressing mechanism;

301. a first drive mechanism; 3011. a fixed seat; 3012. a third motor; 3014. a third nut; 3015. a third guide rail;

302. a second drive mechanism; 3021. a mounting seat; 3022. an electric motor; 3023. a driving wheel; 3024. a driven wheel; 3025. a transmission belt;

303. a third drive mechanism; 3031. a cylinder body; 3032. a piston block;

304. and (7) pressing a plate.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and therefore should not be considered limiting to the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to fig. 6, the present embodiment provides an automatic lamination mechanism for battery cells, which includes a traverse mechanism 10, a lifting module 20, and two pressing mechanisms 30.

The lifting module 20 and the two pressing mechanisms 30 are both mounted on the traversing mechanism 10, and the traversing mechanism 10 is used for driving the lifting module 20 and the two pressing mechanisms 30 to make reciprocating linear motion together in the horizontal direction.

In the present embodiment, the traverse mechanism 10 is preferably a screw module. Specifically, the traverse mechanism 10 includes a base 101, a first motor 102, a first lead screw 103, a first nut 104, a traverse base 105, and a first guide rail 106. The first motor 102 is fixed on the base 101, the first lead screw 103 is mounted on the base 101 through a bearing, so that the first lead screw 103 can rotate relative to the base 101, the length direction of the first lead screw 103 is the same as the horizontal direction (X axis), an output shaft of the first motor 102 is connected with one end of the first lead screw 103 through a coupler, the first motor 102 is used for driving the first lead screw 103 to rotate, a first nut 104 is screwed on the first lead screw 103, the traversing seat 105 is fixed with the first nut 104, a first guide rail 106 is fixed on the base 101, the traversing seat 105 is connected with the first guide rail 106 in a sliding mode through a sliding block, and the length direction of the first guide rail 106 is also the same as the horizontal direction. The lifting module 20 and the two pressing mechanisms 30 are respectively installed on the traverse base 105. When the output shaft of the first motor 102 rotates, the first lead screw 103 rotates, the first nut 104 and the traverse base 105 move linearly along the axial direction of the first lead screw 103, and since the lifting module 20 and the two pressing mechanisms 30 are respectively mounted on the traverse base 105, the lifting module 20 and the two pressing mechanisms 30 move linearly in the positive direction or the negative direction of the X-axis together with the traverse base 105, and the first guide rail 106 guides the traverse base 105.

In other embodiments, the traversing mechanism 10 can also be a linear motor or a timing belt module.

The lifting module 20 includes a driver 201 and a lamination platform 202 connected to each other, the driver 201 is connected to the traverse seat 105 on the traverse mechanism 10, the driver 201 is used for driving the lamination platform 202 to ascend or descend, and the lamination platform 202 is used for supporting the battery cell.

In this embodiment, the driver 201 preferably includes a base 2011, a second motor 2012, a second lead screw 2013, a second nut 2014, an adapter plate 2015 and a second guide rail 2016. The base 2011 is fixed on the traversing seat 105 of the traversing mechanism 10, the second motor 2012 is fixed on the base 2011, the second lead screw 2013 is mounted on the base 2011 through a bearing, so that the second lead screw 2013 can rotate relative to the base 2011, the length direction of the second lead screw 2013 is the same as the vertical direction (Z axis), an output shaft of the second motor 2012 is connected with the bottom end of the second lead screw 2013 through a coupler, the second motor 2012 is used for driving the second lead screw 2013 to rotate, the second nut 2014 is screwed on the second lead screw 2013, the adapter plate 2015 is fixed with the second nut 2014, the second guide rail 2016 is fixed on the base 2011, the adapter plate 2015 is connected with the second guide rail 2016 in a sliding manner through a slider, and the length direction of the second guide rail 2016 is also the same as the Z axis direction. The lamination platform 202 described above is mounted on an interposer 2015. When the output shaft of the second motor 2012 rotates, the second screw 2013 rotates, the second nut 2014 and the adapter plate 2015 move linearly along the axial direction of the second screw 2013, and since the lamination platform 202 is mounted on the adapter plate 2015, the lamination platform 202 moves linearly up or down in the positive direction or the reverse direction of the Z-axis along with the adapter plate 2015, and the second guide 2016 guides the adapter plate 2015.

In other embodiments, the driver 201 may also be a linear motor or a timing belt module.

The pressing mechanism 30 includes a first driving mechanism 301, a second driving mechanism 302, two third driving mechanisms 303, and two pressing plates 304. The first driving mechanism 301 is mounted on the traverse seat 105 of the traverse mechanism 10, the first driving mechanism 301 is connected to the second driving mechanism 302, one third driving mechanism 303 is connected to the second driving mechanism 302 and one of the pressing plates 304, the other third driving mechanism 303 is connected to the second driving mechanism 302 and the other pressing plate 304, and the two pressing plates 304 are located on different sides of the lamination platform 202 on the Y-axis line. Specifically, the first driving mechanism 301 drives the second driving mechanism 302, the two third driving mechanisms 303, and the two pressing plates 304 to move up and down together in the Z-axis direction. The second driving mechanism 302 is used for driving two third driving mechanisms 303 to approach or move away from each other on the Y axis (perpendicular to the X axis), so as to drive the two pressing plates 304 to approach or move away from each other on the Y axis, and the third driving mechanisms 303 are used for driving the pressing plates 304 to ascend or descend.

Specifically, the first driving mechanism 301 includes a fixing base 3011, a third motor 3012, a third lead screw (not shown in the figure), a third nut 3014, and a third guide track 3015. The fixing seat 3011 is fixed to the traverse seat 105 of the traverse mechanism 10, the third motor 3012 is fixed to the fixing seat 3011, the third lead screw is mounted to the fixing seat 3011 through a bearing, so that the third lead screw can rotate relative to the fixing seat 3011, the length direction of the third lead screw is the same as the vertical direction (Z axis), an output shaft of the third motor 3012 is connected to the bottom end of the third lead screw through a coupler, the third motor 3012 is used for driving the third lead screw to rotate, the third nut 3014 is screwed to the third lead screw, the second driving mechanism 302 is mounted to the third nut 3014, the third guide rail 3015 is fixed to the fixing seat 3011, the second driving mechanism 302 is connected to the third guide rail 3015 through a slider in a sliding manner, and the length direction of the third guide rail 3015 is also the same as the Z axis direction. When the output shaft of the third motor 3012 rotates, the third lead screw rotates, the third nut 3014 and the second driving mechanism 302 move linearly along the axial direction of the third lead screw, and since the third driving mechanism 303 is mounted on the second driving mechanism 302, the third driving mechanism 303 and the pressing plate 304 move linearly up or down in the positive direction or the reverse direction of the Z axis along with the second driving mechanism 302, and the third guide track 3015 serves to guide the second driving mechanism 302.

In other embodiments, the first driving mechanism 301 may be a linear motor or a timing belt module.

More specifically, the second drive mechanism 302 includes a mount 3021, a motor 3022, a drive pulley 3023, a driven pulley 3024, and a transmission belt 3025. The mounting base 3021 is connected to the third nut 3014 of the first driving mechanism 301, the mounting base 3021 is further slidably connected to the third rail 3015 of the first driving mechanism 301, the driven wheel 3024 is mounted on the mounting base 3021 through a bearing, so that the driven wheel 3024 can rotate relative to the mounting base 3021, the electric motor 3022 is fixed on the mounting base 3021, the output shaft of the electric motor 3022 is coaxially fixed with the driving wheel 3023, and the transmission belt 3025 is wound around the driving wheel 3023 and the driven wheel 3024. The one of the pressure plates 304 is fixed to one side of the belt 3025, and the other pressure plate 304 is fixed to the other side of the belt 3025. When the output shaft of the motor 3022 rotates, the driving wheel 3023 and the driven wheel 3024 will rotate, and the transmission belt 3025 will also be transported, so as to drive the two third driving mechanisms 303 to approach each other or move away from each other on the Y-axis straight line, and since the pressing plates 304 are connected to the third driving mechanisms 303, the two pressing plates 304 also approach each other or move away from each other on the Y-axis straight line. The second driving mechanism 302 adopting belt transmission has the advantages of longer transmission distance and smooth transmission. In addition, the mounting seats 3021 on the two push-down mechanisms 30 and the first driving mechanisms 301 on the two push-down mechanisms 30 are commonly arranged around the periphery of the driver 201, so that the structural layout is more reasonable.

Further, the third driving mechanism 303 is preferably an air cylinder. Specifically, the third drive mechanism 303 includes a cylinder block 3031 and a piston block 3032 connected. Wherein one of the cylinder 3031 and the piston block 3032 is connected with the second driving mechanism 302, and the other is connected with the pressure plate 304, and the piston block 3032 can extend or retract relative to the cylinder 3031 in the Z-axis direction after gas is introduced into the cylinder 3031.

The working principle of the automatic lamination mechanism of the present embodiment is summarized as follows:

before the operation, the diaphragm on the external automatic diaphragm unwinding mechanism is pre-laid and fixed on the lamination platform 202, that is, at this time, a layer of diaphragm is pre-laid on the lamination platform 202, when the operation is performed, the positive plate is firstly stacked on the diaphragm by a manual or mechanical arm, then the second driving mechanisms 302 on the two pressing mechanisms 30 drive the two pressing plates 304 to approach each other on the Y-axis straight line, then the first driving mechanisms 301 on the two pressing mechanisms 30 drive the two pressing plates 304 to descend, so that the four pressing plates 304 apply downward pressure to the diaphragm and the positive plate, further the diaphragm and the positive plate can be reliably and stably fixed on the lamination platform 202, at this time, the third driving mechanism 303 plays a role of buffering, so as to prevent the pressing plates 304 from applying excessive pressure to the positive plate, and then the traverse mechanism 10 drives the lifting module 20 and the two pressing mechanisms 30 to simultaneously perform traverse movement on the X-axis straight line, at this time, a second layer of diaphragm is automatically laid on the positive pole piece due to the transverse movement of the lamination platform 202, then the driver 201 drives the lamination platform 202 to descend for a certain distance, so that the height of the negative pole piece to be laid on the lamination platform 202 is the same as the height of the positive pole piece to be laid before, then the first driving mechanisms 301 on the two pressing mechanisms 30 drive the two pressing plates 304 to ascend, then the second driving mechanisms 302 on the two pressing mechanisms 30 drive the two pressing plates 304 to move away from each other on the Y-axis straight line, at this time, the four pressing plates 304 are all separated from the material, then the negative pole piece is stacked on the second layer of diaphragm through a human or a robot, then the four pressing plates 304 tightly press the pole pieces and the diaphragms on the lamination platform 202 again, and the transverse movement mechanism 10 drives the lamination platform 202 to perform the reset transverse movement on the X-axis straight line again, at this time, a third layer of diaphragm is automatically laid on the upper surface of the negative plate due to the transverse movement of the lamination platform 202, the driver 201 drives the lamination platform 202 to descend again, so that the height of the positive plate to be laid on the lamination platform 202 is the same as that of the negative plate to be laid before, then the four press plates 304 are away from the material again, then a layer of positive plate is laid on the third layer of diaphragm, and the actions are circulated in sequence to complete continuous stacking of the positive plate, the diaphragm and the negative plate.

In summary, according to the technical solution, by driving the traversing mechanism 10, N layers of diaphragms can be laid on the lamination platform 202, after each layer of diaphragm is laid, a layer of negative electrode plate or positive electrode plate needs to be laid on the diaphragm, and before each traversing mechanism 10 traverses, each electrode plate and diaphragm need to be pressed by the pressing plate 304, so that the phenomenon that the electrode plates and diaphragms fall off from the lamination platform 202 due to inertia in the traversing process of the traversing mechanism 10 is avoided. This technical scheme has a great deal of advantages such as action is steady, the response is rapid, the reliability is high and lamination is efficient, shortens the production auxiliary time of traditional lamination mechanism, and then improves the production efficiency of electric core by a wide margin.

The foregoing is only a preferred embodiment of the present invention, and the technical principles of the present invention have been specifically described, and the description is only for the purpose of explaining the principles of the present invention, and should not be construed as limiting the scope of the present invention in any way. Any modifications, equivalents and improvements made within the spirit and principles of the invention and other embodiments of the invention without the creative effort of those skilled in the art are intended to be included within the protection scope of the invention.

Claims

1. The utility model provides an automatic lamination mechanism of electricity core which characterized in that includes:

the lifting module comprises a driver and a lamination platform, and the driver is connected with the lamination platform and is used for driving the lamination platform to ascend or descend;

and the transverse moving mechanism is connected with the lifting module and the pressing mechanism and is used for driving the lifting module and the pressing mechanism to do reciprocating transverse moving along the horizontal direction together.

2. The automatic lamination mechanism for a battery cell of claim 1, wherein the hold-down mechanism further comprises two third drive mechanisms;

the third driving mechanism is connected with the second driving mechanism and the pressing plate and is used for driving the pressing plate to ascend or descend;

and the other third driving mechanism is connected with the second driving mechanism and the other pressure plate and is used for driving the other pressure plate to ascend or descend.

3. The automatic lamination mechanism for battery cells according to claim 2, wherein the third driving mechanism comprises a cylinder for external gas to enter and a piston block connected to the cylinder and capable of ascending or descending relative to the cylinder when gas is present in the cylinder;

4. The automatic lamination mechanism for battery cells of claim 1, wherein the direction in which the second driving mechanism drives the pressing plate to move is perpendicular to the direction in which the traverse mechanism drives the lifting module to move.

5. The automatic lamination mechanism for battery cells of claim 1, wherein the second driving mechanism comprises a mounting seat, a motor, a driving wheel, a driven wheel and a transmission belt;

the driven wheel is rotationally connected with the mounting seat, the driving belt is sleeved on the driving wheel and the driven wheel, and the motor is connected with the mounting seat and the driving wheel and is used for driving the driving wheel to rotate; the mounting seat is connected with the first driving mechanism, and the two pressing plates are connected with the transmission belt.

6. The automatic lamination mechanism for a battery cell according to claim 5, wherein there are two of the pressing mechanisms, and the mounting seats of the two pressing mechanisms and the first driving mechanisms of the two pressing mechanisms are disposed around the periphery of the driver.

7. The automatic lamination mechanism for the battery cell of claim 1, wherein the traverse mechanism comprises a base, a first motor, a first lead screw, a first nut, and a traverse base;

the first motor is connected with the base, the first lead screw is rotatably connected with the base, the axial direction of the first lead screw is along the horizontal direction, the first motor is connected with the first lead screw, the first nut is in threaded connection with the first lead screw, the transverse moving seat is connected with the first nut, and the lifting module and the pressing mechanism are both connected with the transverse moving seat.

8. The automatic lamination mechanism for battery cells of claim 1, wherein the driver comprises a base, a second motor, a second lead screw, a second nut, and an adapter plate;

9. The automatic lamination mechanism for battery cells of claim 6, wherein the first driving mechanism comprises a fixed seat, a third motor, a third lead screw and a third nut;