Roll core blanking device

Abstract

The utility model relates to the technical field of new energy batteries, in particular to a roll core discharging device which comprises a supporting plate, a supporting plate driving module and a pressing module, in the roll core discharging device provided by the invention, the supporting plate is connected with the supporting plate driving module, and the supporting plate driving module is used for driving the supporting plate to move in the horizontal direction and the vertical direction; under the driving of the supporting plate driving module, the supporting plate is inserted into the cavity of the roll core and supports the roll core, so that the problems that when a traditional roll core blanking device is used for pre-pressing and shaping the roll core, a diaphragm of an upper-layer pole piece in the cavity of the roll core is collapsed to cause deformation of the roll core, and the quality of the roll core is influenced are solved. Therefore, the problem that the roll core is wrinkled during pre-pressing is solved.

Description

Technical Field

[0001] The present application relates to the field of new energy battery technology, and in particular to a core unloading device. Background Art

[0002] The battery core is a core component and plays a vital role in its performance. It primarily consists of the positive electrode sheet, negative electrode sheet, and separator. The core is typically manufactured using a winding process. First, the positive electrode sheet, negative electrode sheet, and separator are cut to specific sizes. The positive electrode sheet, separator, and negative electrode sheet are then stacked or wound together in sequence to form a cylindrical or flat core.

[0003] Winding machines are essential equipment for producing high-quality cores. Usually, the cores produced by the winding machine will be pre-pressed and shaped when they are unloaded through the unloading device. During the pre-pressing and shaping process, since the core has a cavity, the diaphragm of the upper electrode at the cavity of the core will sag, causing the core to deform, resulting in wrinkles in the core during pre-pressing, which in turn leads to short circuits, lithium deposition, voltage drops and other adverse phenomena in the final battery cell. Utility Model Content

[0004] The present application provides a core blanking device, which aims to solve the problem that when the traditional core blanking device pre-presses and shapes the core, the core has a cavity, which causes the diaphragm of the upper pole piece in the core cavity to sag and cause the core to deform, thereby causing the core to wrinkle during pre-pressing.

[0005] In order to solve the above technical problems, the present application proposes a core unloading device, which includes: a support plate, a support plate driving module, and a pressing module;

[0006] The pallet is connected to the pallet driving module, and the pallet driving module is used to drive the pallet to move in the horizontal and vertical directions. The pressing module is used to pre-press and shape the core. The core is provided with a cavity. Before the pressing module pre-presses and shapes the core, the pallet driving module drives the pallet to insert into the cavity and support the core.

[0007] Furthermore, the core unloading device also includes a unloading needle and a third drive assembly. The unloading needle includes a first unloading needle and a second unloading needle. The unloading needle is connected to the third drive assembly. The third drive assembly is used to drive the first unloading needle and the second unloading needle to move closer to and away from each other.

[0008] Furthermore, the core unloading device also includes a fourth drive component, the discharge needle is connected to the fourth drive component, and the fourth drive component is used to drive the discharge needle to approach and move away from the core.

[0009] Furthermore, the pressing module includes a first pressure plate, a first conveyor belt and a fifth drive assembly. The first pressure plate and the first conveyor belt are arranged relative to each other, the first conveyor belt is connected to the fifth drive assembly, and the fifth drive assembly is used to drive the first conveyor belt to move toward the first pressure plate to pre-press and shape the core.

[0010] Furthermore, the core unloading device also includes a sixth drive assembly, the unloading needle is connected to the sixth drive assembly, and the sixth drive assembly is used to drive the unloading needle to move toward the first pressure plate.

[0011] Furthermore, the core unloading device also includes a first connecting plate, the pallet driving module includes a first driving component and a second driving component, the first driving component and the second driving component are connected through the first connecting plate, and the first driving component drives the second driving component to move through the first connecting plate.

[0012] Furthermore, the support plate is L-shaped.

[0013] Furthermore, the core unloading device also includes a second connecting plate, and the pressing module is installed based on the second connecting plate.

[0014] Furthermore, the core unloading device also includes a second conveyor belt, which is arranged on the side of the first conveyor belt, and the second conveyor belt is used to transport the core after pre-pressing and shaping.

[0015] Furthermore, the core unloading device also includes a base, a seventh drive assembly is provided on the base, the second connecting plate is connected to the seventh drive assembly, and the seventh drive assembly is used to drive the second connecting plate to move toward the second conveyor belt.

[0016] The beneficial effect of the present application is: in the core unloading device provided in the present application, the pallet is connected to the pallet driving module, and the pallet driving module is used to drive the pallet to move in the horizontal and vertical directions. Under the drive of the pallet driving module, the pallet is inserted into the cavity of the core and supports the core, so that when the core is pre-pressed, the cavity position of the core will not collapse, effectively preventing the core from wrinkling during pre-pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts. Among them:

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a core unloading device according to one embodiment of the present invention;

[0019] Figure 2 It is a side view of a core unloading device according to one embodiment of the present invention.

[0020] Explanation of the accompanying drawings: 10, pallet; 20, pallet drive module; 100, first drive assembly; 110, first guide rail; 200, second drive assembly; 210, second guide rail; 300, first connecting plate; 410, first unloading needle; 420, second unloading needle; 600, fourth drive assembly; 610, fourth guide rail; 620, third connecting plate; 700, pressing module; 710, first pressing plate; 720, first conveyor belt; 721, second conveyor belt; 730, fifth drive assembly; 731, fifth guide rail; 740, first fixed plate; 750, second connecting plate; 760, second fixed plate; 800, sixth drive assembly; 810, sixth guide rail; 820, mounting plate; 900, base; 910, first substrate; 920, second substrate; 930, seventh guide rail. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0022] Those skilled in the art will understand that, unless expressly stated otherwise, the singular forms "a", "an", "above", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of this application refers to the presence of features, integers, steps, operations, elements, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, modules, components, and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, "connected" or "coupled" as used herein may include wireless connections or wireless couplings. The term "and / or" used herein includes all or any module and all combinations of one or more associated listed items.

[0023] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0024] like Figure 1 、 2 As shown, the present application provides a core unloading device, which includes a pallet 10, a pallet driving module 20, and a pressing module 700. The pallet 10 is connected to the pallet driving module 20. The pallet driving module 20 is used to drive the pallet 10 to move in the horizontal and vertical directions. The pressing module 700 is used to pre-press and shape the core. The core is provided with a cavity. Before the pressing module 700 pre-presses and shapes the core, the pallet driving module 20 drives the pallet 10 to insert into the cavity and support the core.

[0025] In a specific embodiment, the winding core is roughly cylindrical with a cavity, the pallet drive module 20 includes a first drive component 100 and a second drive component 200, and the winding core unloading device also includes a first connecting plate 300, and the first drive component 100 and the second drive component 200 are connected by the first connecting plate 300. The first drive assembly 100 includes a first cylinder, a first guide rail 110, and a first slider. The second drive assembly 200 includes a second cylinder, a second guide rail 210, and a second slider. The first cylinder and the first guide rail 110 are both arranged horizontally. There are two first guide rails 110, and the two first guide rails 110 are arranged in parallel and spaced apart. A first slider is provided on each first guide rail 110, and the first slider is slidably assembled with the first guide rail 110. The first connecting plate 300 includes a transverse plate and a vertical plate. The transverse plate is a T-shaped plate. The transverse plate is horizontally arranged. The transverse plate is fixedly assembled with the first sliders on the two first guide rails 110, and the output end of the first cylinder is fixedly assembled with the transverse plate, so that the first cylinder can drive the first connecting plate 300 to perform translational motion in the horizontal direction along the first guide rail 110. The vertical plate is rectangular, arranged vertically and fixedly connected to the ends of the horizontal plate. A second cylinder and a second guide rail 210 are provided on the side of the vertical plate away from the horizontal plate. The second cylinder and the second guide rail 210 are both arranged vertically. The second guide rail 210 is fixedly assembled with the vertical plate, and the second slider is slidably assembled on the second guide rail 210. The support plate 10 is L-shaped as a whole, and the support plate 10 is fixedly assembled with the second slider. The output end of the second cylinder is vertically downward, and the support plate 10 is fixedly connected to the output end of the second cylinder, so that the second cylinder can drive the support plate 10 to move vertically along the direction of the second guide rail 210.

[0026] To sum up, under the drive of the first drive component 100 and the second drive component 200, the pallet 10 can move in the horizontal and vertical directions so as to facilitate the insertion of the pallet 10 into the cavity of the core, so that when the pressing module 700 presses and shapes the core from the upper and lower directions, the diaphragm of the upper pole piece in the cavity of the core will not collapse and cause the core to deform.

[0027] like Figure 1 As shown, the core unloading device also includes a unloading needle and a third drive assembly. The unloading needle includes a first unloading needle 410 and a second unloading needle 420. The unloading needle is connected to the third drive assembly. The third drive assembly is used to drive the first unloading needle 410 and the second unloading needle 420 to move closer to and away from each other.

[0028] In a specific embodiment, the core unloading device also includes a unloading needle and a third drive assembly. The third drive assembly includes a third guide rail, a third slider, and a third cylinder. The third guide rail is horizontally arranged. There are two third sliders. The two third sliders are slidably assembled on the third guide rail. The third cylinder is horizontally arranged. The third cylinder is in the same direction as the third guide rail. There are two third cylinders, and the two third cylinders are symmetrically arranged at both ends of the third guide rail. The unloading needle is L-shaped. There are two unloading needles, namely the first unloading needle 410 and the second unloading needle 420. The two unloading needles are fixedly mounted on the two third sliders respectively. The output ends of the two third cylinders are fixedly connected to the first unloading needle 410 and the second unloading needle 420 respectively. The two third cylinders can drive the first unloading needle 410 and the second unloading needle 420 to approach and move away from each other to facilitate shaping of the core.

[0029] like Figure 1 As shown, the core unloading device further includes a fourth driving assembly 600, and the discharge needle is connected to the fourth driving assembly 600, and the fourth driving assembly 600 is used to drive the discharge needle to approach and move away from the core.

[0030] In a specific embodiment, the core unloading device further includes a fourth drive assembly 600, which includes a fourth cylinder, a fourth guide rail 610, a fourth slider, and a third connecting plate 620. The fourth cylinder and the fourth guide rail 610 are both horizontally arranged, and the fourth cylinder and the fourth guide rail 610 are in the same direction. The fourth guide rail 610 is perpendicular to the third guide rail. There are two fourth guide rails 610, and the two fourth guide rails 610 are arranged in parallel and spaced apart. A fourth slider is slidably mounted on each fourth guide rail 610. The third connecting plate 620 It is rectangular, and the third connecting plate 620 is arranged horizontally. The third connecting plate 620 is fixedly connected to the fourth slider, and the output end of the fourth cylinder is fixedly connected to the third connecting plate 620, so that the fourth cylinder can drive the third connecting plate 620 to perform translational movement along the direction of the fourth guide rail 610. The third drive assembly and the unloading needle are both fixedly installed based on the third connecting plate 620, so that the fourth drive assembly 600 can drive the unloading needle to perform translational movement along the direction of the fourth guide rail 610, so that the unloading needle can enter and exit the cavity of the core.

[0031] like Figure 1 As shown, the pressing module 700 includes a first pressing plate 710, a first conveyor belt 720 and a fifth drive assembly 730. The first conveyor belt 720 and the fifth drive assembly 730 are connected. The fifth drive assembly 730 is used to drive the first conveyor belt 720 to move toward the first pressing plate 710 to pre-press and shape the core.

[0032] In a specific embodiment, the pressing module 700 includes a first pressure plate 710, a first conveyor belt 720, a fifth drive assembly 730, a transmission roller and a first fixed plate 740. The first pressure plate 710 is rectangular and horizontally arranged. The first drive assembly 100 is fixedly installed based on the first pressure plate 710. There are two first fixed plates 740, and the two first fixed plates 740 are vertically spaced apart. There are two transmission rollers, and the two transmission rollers are horizontally arranged and parallel and spaced apart. The transmission roller is arranged between the two first fixed plates 740, and the transmission roller is rotatably connected to the first fixed plate 740. The first conveyor belt 720 is mounted on the transmission roller so that the upper surface of the first conveyor belt 720 forms a horizontal plane.

[0033] The fifth driving assembly 730 comprises a fifth cylinder, fifth guide rails 731, a fifth sliding block, a second fixed plate 760 and a support plate. The fifth cylinder and the fifth guide rails 731 are vertically arranged, the fifth guide rails 731 are provided in two, the two fifth guide rails 731 are arranged in parallel and at intervals, the fifth sliding block is arranged on the fifth guide rails 731 in a sliding mode, the second fixed plate 760 is a rectangular plate, the second fixed plate 760 is vertically arranged, and the second fixed plate 760 is fixedly arranged with the fifth sliding block, the support plate is arranged on a side of the second fixed plate 760 away from the fifth sliding block, the support plate is provided in two, the two support plates are arranged in parallel and at intervals, the support plate is substantially triangular, the right angle edges of the two support plates are fixedly arranged with the second fixed plate 760, the two first fixed plates 740 fall on the upper surfaces of the two support plates, and the first fixed plate 740 is fixedly arranged with the support plate, and the output end of the fifth cylinder is connected with the second fixed plate 760. The fifth cylinder can drive the second fixed plate 760 to move along the fifth guide rails 731, thereby driving the first conveying belt 720 to move in the vertical direction, so as to drive the first conveying belt 720 to move towards the first pressing plate 710.

[0034] As shown in Figure 2 , the core blanking device further comprises a sixth driving assembly 800, the unloading needle is connected with the sixth driving assembly 800, and the sixth driving assembly 800 is used for driving the unloading needle to move towards the first pressing plate 710.

[0035] In an embodiment, the sixth driving assembly 800 comprises a sixth cylinder, sixth guide rails 810, a sixth sliding block and a mounting plate 820, the sixth cylinder and the sixth guide rails 810 are vertically arranged, the sixth guide rails 810 are provided in two, the two sixth guide rails 810 are arranged in parallel and at intervals, the sixth sliding block is arranged on the sixth guide rails 810 in a sliding mode, the mounting plate 820 is L-shaped, the mounting plate 820 is fixedly arranged with the sixth sliding block, the output end of the sixth cylinder is fixedly connected with the mounting plate 820, and the fourth driving assembly 600 is installed based on the mounting plate 820, so that when the first conveying belt 720 moves towards the first pressing plate 710, the sixth cylinder synchronously drives the unloading needle to move along the sixth guide rails 810 towards the first pressing plate 710.

[0036] As shown in Figure 1 , the supporting plate 10 is L-shaped.

[0037] In an embodiment, the supporting plate 10 comprises a first supporting plate and a second supporting plate, the first supporting plate and the second supporting plate are both rectangular, the first supporting plate is vertically arranged, the second supporting plate is horizontally arranged, the second supporting plate is arranged at the lower end of the first supporting plate, and the first supporting plate and the second supporting plate are integrally formed, so that the supporting plate 10 is L-shaped as a whole, so that after the horizontal movement and the vertical movement of the supporting plate 10, the second supporting plate can be inserted into the cavity of the core.

[0038] As shown in Figure 2As shown, the core unloading device further includes a second connecting plate 750 , and the pressing module 700 is mounted on the second connecting plate 750 .

[0039] In a specific embodiment, the core unloading device also includes a second connecting plate 750, which is rectangular, vertically arranged, and parallel and spaced apart from the second fixed plate 760. The fifth guide rail 731 is fixedly assembled with the second connecting plate 750, and the first pressure plate 710 is arranged at one end of the second connecting plate 750 close to the first drive assembly 100. The first pressure plate 710 is perpendicular to the second connecting plate 750, and the first pressure plate 710 and the second connecting plate 750 are integrally formed, and the pressing module 700 is installed based on the second connecting plate 750.

[0040] like Figure 1 As shown, the core unloading device further includes a second conveyor belt 721, which is used to transport the cores after pre-pressing and shaping.

[0041] In a specific embodiment, the core unloading device also includes a second conveyor belt 721 and a support column. The support column is arranged on the side of the first conveyor belt 720. The support column is arranged vertically. The second conveyor belt 721 is fixedly installed on the upper end of the support column. The second conveyor belt 721 is arranged horizontally. The support column is used to fix the second conveyor belt 721 at a preset height. The pre-pressed and shaped core is transported and unloaded from the second conveyor belt 721.

[0042] like Figure 2 As shown, the core unloading device also includes a base 900 , on which a seventh drive assembly is provided. The second connecting plate 750 is connected to the seventh drive assembly, and the seventh drive assembly is used to drive the second connecting plate 750 to move toward the second conveyor belt 721 .

[0043] In a specific embodiment, the core unloading device also includes a base 900, on which a seventh driving assembly is provided. The base 900 includes a first substrate 910 and a second substrate 920. The first substrate 910 is arranged horizontally, and the second substrate 920 is arranged vertically. The first substrate 910 and the second substrate 920 are formed as one piece. The seventh driving assembly includes a seventh cylinder, a seventh guide rail 930, and a seventh slider. There are two seventh guide rails 930. The two seventh guide rails 930 are arranged in parallel and spaced apart, and the two seventh guide rails 930 are both arranged horizontally. The seventh guide rail 930 is arranged on one side of the second substrate 920 close to the second connecting plate 750. The seventh guide rail 930 is fixedly assembled with the second substrate 920. A seventh slider is slidably assembled on each second guide rail 210. The second connecting plate 750 is fixedly assembled with the seventh slider. The seventh cylinder is arranged horizontally, and the seventh cylinder is fixedly connected to the second connecting plate 750, so that the seventh cylinder can drive the second connecting plate 750 to move horizontally along the seventh guide rail 930.

[0044] In summary, in the actual working process, the fourth drive assembly 600 drives the unloading needle to insert into the cavity of the core to fix the core, and then the fourth drive assembly 600 further drives the unloading needle to transport the core to the top of the first conveyor belt 720, the first drive assembly 100 and the second drive assembly 200 drive the L-shaped pallet 10 to insert into the cavity of the core, and then the second drive assembly 200 drives the pallet 10 to move upward for a certain distance, so that the pallet 10 has a bearing capacity for the cavity to prevent the core cavity from collapsing, and then the fifth drive assembly 730 drives the first conveyor belt 720 to move toward the first pressure plate 710, and at the same time The sixth drive component 800 drives the unloading needle to move toward the first pressure plate 710, so that the first pressure plate 710 and the first conveyor belt 720 pre-press and shape the core. While the first conveyor belt 720 presses the core, the third drive component drives the first unloading needle 410 and the second unloading needle 420 to move away from each other, so that the first unloading needle 410 and the second unloading needle 420 expand the cavity of the core, and the speed at which the first unloading needle 410 and the second unloading needle 420 expand the cavity matches the speed at which the first conveyor belt 720 presses the core, preventing the winding tension of the core from being lost during pre-pressing, thereby avoiding the core pulling phenomenon. When the pre-pressing and shaping is completed, the core falls on the surface of the first conveyor belt 720, and the seventh drive component drives the first conveyor belt 720 to move toward the second conveyor belt 721, so that the first conveyor belt 720 and the second conveyor belt 721 are adjacent to each other, and the core moves from the first conveyor belt 720 to the second conveyor belt 721, and then the unloading is completed from the second conveyor belt 721.

[0045] After the above steps, the core completes the pre-pressing, shaping and unloading processes in the core unloading device, and effectively prevents the problem of the diaphragm of the upper electrode piece in the core cavity from collapsing and causing the core to deform during the entire process.

[0046] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A core unloading device, characterized in that: include: Pallet, pallet drive module, pressing module; The pallet is connected to the pallet driving module, and the pallet driving module is used to drive the pallet to move in the horizontal and vertical directions. The pressing module is used to pre-press and shape the core. The core is provided with a cavity. Before the pressing module pre-presses and shapes the core, the pallet driving module drives the pallet to insert into the cavity and support the core.

2. The core unloading device according to claim 1, characterized in that: The core unloading device also includes a discharge needle and a third drive assembly. The discharge needle includes a first discharge needle and a second discharge needle. The discharge needle is connected to the third drive assembly. The third drive assembly is used to drive the first discharge needle and the second discharge needle to move closer to and away from each other.

3. The core unloading device according to claim 2, characterized in that: The core unloading device further includes a fourth drive assembly, the discharge needle is connected to the fourth drive assembly, and the fourth drive assembly is used to drive the discharge needle to approach and move away from the core.

4. The core unloading device according to claim 2, characterized in that: The pressing module includes a first pressure plate, a first conveyor belt and a fifth drive assembly. The first pressure plate and the first conveyor belt are arranged relative to each other, and the first conveyor belt is connected to the fifth drive assembly. The fifth drive assembly is used to drive the first conveyor belt to move toward the first pressure plate to pre-press and shape the core.

5. The core unloading device according to claim 4, characterized in that: The core unloading device further includes a sixth drive assembly, the unloading needle is connected to the sixth drive assembly, and the sixth drive assembly is used to drive the unloading needle to move toward the first pressing plate.

6. The core unloading device according to claim 1, characterized in that: The core unloading device also includes a first connecting plate, and the pallet driving module includes a first driving component and a second driving component. The first driving component and the second driving component are connected through the first connecting plate, and the first driving component drives the second driving component to move through the first connecting plate.

7. The core unloading device according to claim 1, characterized in that: The supporting plate is L-shaped.

8. The core unloading device according to claim 4, characterized in that: The core unloading device further includes a second connecting plate, and the pressing module is installed based on the second connecting plate so that the pressing module moves along with the second connecting plate.

9. The core unloading device according to claim 8, characterized in that: The core unloading device further includes a second conveyor belt, which is arranged on the side of the first conveyor belt and is used to transport the cores after pre-pressing and shaping.

10. The core unloading device according to claim 9, characterized in that: The core unloading device also includes a base, on which a seventh drive assembly is provided. The second connecting plate is connected to the seventh drive assembly, and the seventh drive assembly is used to drive the second connecting plate to move toward the second conveyor belt.

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