Tension-free lamination stacking machine

Abstract

The tension-free lamination stacking machine comprises a machine body, a first feeding assembly, a second feeding assembly, a stacking table assembly, a plurality of carrying modules and a covering and pressing assembly, and a linear module is arranged on the machine body; the first feeding assembly is used for feeding a first pole piece; the second feeding assembly is used for feeding a second pole piece; the stacking table assembly is used for sequentially receiving a first pole piece and a second pole piece; the plurality of carrying modules are used for respectively grabbing a first pole piece fed and conveyed by the first feeding assembly, grabbing a second pole piece fed and conveyed by the second feeding assembly, and sequentially carrying the first pole piece and the second pole piece to the stacking table assembly; the covering and pressing assembly is used for pulling the diaphragm to the stacking table assembly so as to sequentially cover and press the diaphragm between the first pole piece and the second pole piece, and the tension of the diaphragm is adjusted along the covering and pressing direction of the diaphragm. High-precision adjustment of diaphragm tension is achieved, it is guaranteed that the diaphragm is stressed more evenly in the traction conveying process, and the lamination effect of the diaphragm is improved.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and specifically to a tensionless stacking machine. Background Technology

[0002] In battery manufacturing, the lamination process is a crucial step in constructing the core battery cell. This process typically involves precisely positioning and stacking the positive electrode, separator, and negative electrode in sequence to form a "Z" shape or other specific sequence of layers. The separator primarily isolates the positive and negative electrodes to prevent internal short circuits; therefore, the separator directly affects the final performance and production yield of the battery cell during lamination. In current automated lamination machines, to ensure lamination accuracy and the flatness of the separator, it's necessary to prevent wrinkles, stretching deformation, or misalignment during transport. This requires applying and maintaining appropriate tension on the separator. However, existing lamination machines typically use a pulling motion to transport the separator, resulting in an inability to precisely adjust the tension, leading to uneven stress on the separator and affecting the lamination effect. Summary of the Invention This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, one object of this invention is to provide a tension-free stacking machine, comprising: The body, on which a linear module is provided; The first feeding assembly is disposed on the machine body and is used to feed and transport the first electrode sheet; The second feeding component is arranged at an interval from the first feeding component and is used to feed and transport the second electrode sheet. A stacking assembly is disposed between the first feeding assembly and the second feeding assembly, and is used to sequentially receive the first electrode sheet and the second electrode sheet; Multiple transport modules are synchronously and movably mounted on the linear module, used to respectively grab the first electrode sheet fed by the first feeding component and grab the second electrode sheet fed by the second feeding component, and transport the first electrode sheet and the second electrode sheet sequentially onto the stacking assembly; A pressing assembly is movably disposed on the linear module and located above the stacking assembly, for actively pulling and conveying the diaphragm onto the stacking assembly to press the diaphragm sequentially between the first electrode and the second electrode.

[0003] Preferably, the overlay assembly includes: A support frame, which is mounted on the linear module; A first guide roller is rotatably mounted on the support frame; An active feeding roller is mounted on the support frame and is driven by a drive motor to actively traction and convey the diaphragm. A clamping assembly is disposed on the support frame and is parallel to the first guide roller and the drive roller along the length direction, and the distance between the clamping assembly and the active feeding roller is adjustable; A pressure roller, which is mounted on the support frame, clamps and pulls the diaphragm to sequentially press it between the first electrode and the second electrode.

[0004] Preferably, the clamping assembly includes: The first cylinder is mounted on the support frame; A sliding plate, which is slidably connected to the support frame and connected to the first cylinder; An adjusting roller is rotatably connected to the sliding plate and is driven by the first cylinder to move closer to or further away from the active feed roller, and the diaphragm is conveyed from between the adjusting roller and the active feed roller to the pressing roller.

[0005] Preferably, the support frame is further provided with a correction sensor, which is movable along the length of the support frame and is used to detect the offset of the edge of the diaphragm.

[0006] Preferably, the first feeding component includes: The first stacking frame is mounted on the machine body and is used to stack and store a plurality of the first electrode sheets. A first support module is disposed adjacent to the first stacking frame and is used to support the first electrode sheet. At least two transport modules are located above the first stacking frame and the first support module to transport the first electrode sheet from the first stacking frame to the first support module and simultaneously transport the first electrode sheet from the first support module to the stacking assembly.

[0007] Preferably, the second feeding component includes: The second stacking frame is mounted on the machine body and is used to stack and store a number of second electrode plates. The second carrier module is arranged adjacent to the second stacking frame and is used to carry the second electrode sheet. At least two of the transport modules are located above the second stacking frame and the second carrier module to transport the second electrode sheet from the second stacking frame to the second carrier module and simultaneously transport the second electrode sheet from the second carrier module to the stacking assembly.

[0008] Preferably, the stacking assembly includes: A base frame, which is mounted on the machine body; The first lead screw module is mounted on the base frame; A negative pressure substrate is disposed on the first lead screw module and is driven to move by the first lead screw module; The second cylinder is located on the outside of the negative pressure substrate; A clamping member, which is connected to the second cylinder and extends onto the negative pressure substrate, so as to move closer to or away from the negative pressure substrate as driven by the second cylinder.

[0009] Preferably, each of the transport modules includes: The second lead screw module is disposed on the linear module; A connecting bracket is connected to the second lead screw module and is driven by the second lead screw module to move closer to or further away from the first feeding assembly, the second feeding assembly, and the stacking assembly; Multiple suction cups are disposed on the connecting bracket and move together with the connecting bracket to adsorb and fix the first electrode and / or the second electrode.

[0010] Preferably, the machine body is further provided with an unwinding roller, on which the diaphragm is wound, and a plurality of second guide rollers are provided in the conveying direction of the diaphragm, and the diaphragm is drawn and conveyed from the unwinding roller and through the plurality of second guide rollers to the pressing assembly.

[0011] Preferably, a fixing frame is provided between at least two of the transport modules, and the fixing frame is provided with a vertically movable cutting blade, which is driven by a third cylinder to move closer to or away from the diaphragm.

[0012] The above-described solution of the present invention has at least the following beneficial effects: The tensionless stacking machine provided by this invention uses multiple transport modules to grab the first electrode sheet fed by the first feeding component and the second electrode sheet fed by the second feeding component. This allows the first and second electrode sheets to be sequentially transported onto the stacking assembly. When the diaphragm is pulled onto the stacking assembly, the pressing assembly can sequentially press the diaphragm between the first and second electrode sheets. Simultaneously, the active traction action of the diaphragm enables its transport, achieving high-precision and real-time dynamic adjustment of the diaphragm tension. This ensures more uniform force on the diaphragm during traction and transport, improving the stacking effect.

[0013] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the tension-free stacking machine provided in the embodiments of the present invention; Figure 2 This is a partial structural schematic diagram of the tension-free stacking machine provided in this embodiment of the invention; Figure 3 This is a schematic diagram of the structure of the linear module, the first feeding component, the second feeding component, the conveying module, and the pressing component provided in the embodiments of the present invention; Figure 4 This is a schematic diagram of the overlay assembly provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the overlay assembly, unwinding roller and second guide roller provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the first feeding component provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the second feeding component provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the stacking assembly provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the handling module provided in the embodiment of the present invention; Explanation of icon numbers: 10. Body; 11. Linear module; 20. First feeding assembly; 21. First stacking frame; 22. First bearing module; 23. First electrode sheet; 30. Second feeding assembly; 31. Second stacking frame; 32. Second bearing module; 33. Second electrode sheet; 40. Stacking assembly; 41. Base frame; 42. First lead screw module; 43. Negative pressure base plate; 44. Second cylinder; 45. Clamping component; 50. Handling module; 51. Second lead screw module; 52. Connecting bracket; 53. Suction cup; 60. Overlapping assembly; 61. Support frame; 62. First guide roller; 63. Active feed roller; 631. Drive motor; 64. Clamping assembly; 641. First cylinder; 642. Sliding plate; 643. Adjusting roller; 65. Overlapping roller; 66. Correction sensor; 67. Diaphragm; 70. Unwinding roller; 71. Second guide roller; 80. Fixture; 81. Cutting blade; 82. Third cylinder.

[0016] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0017] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "circumferential," and "radial," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying 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 this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] The tensionless stacking machine of the present invention will now be described in detail with reference to the accompanying drawings.

[0023] Reference Figures 1 to 3As shown, the tensionless stacking machine provided in this embodiment of the invention includes: a machine body 10, a first feeding assembly 20, a second feeding assembly 30, a stacking assembly 40, multiple conveying modules 50, and a pressing assembly 60. A linear module 11 is provided on the machine body 10. The linear module 11 can be a lead screw linear module, etc. Multiple conveying modules 50 and the pressing assembly 60 are all mounted on the linear module 11 and are driven by the linear module 11 to move synchronously along the length direction of the machine body 10. The first feeding assembly 20 is located on the machine body 10 and is used to feed the first electrode 23. The second feeding assembly 30 is spaced apart from the first feeding assembly 20 and is used to feed the second electrode 33. The stacking assembly 40 is located between the first feeding assembly 20 and the second feeding assembly 30 and is used to sequentially receive the first electrode 23 and the second electrode 33. The first electrode 23 can be a positive electrode, and the second electrode 33 can be a negative electrode, or the first electrode 23 can be a negative electrode. The second electrode 33 is a positive electrode. Multiple conveying modules 50 are synchronously and movably mounted on the linear module 11 to respectively grab the first electrode 23 conveyed by the first feeding component 20 and the second electrode 33 conveyed by the second feeding component 30, and sequentially transport the first electrode 23 and the second electrode 33 to the stacking assembly 40. The pressing component 60 is movably mounted on the linear module 11 and located above the stacking assembly 40, and is used to actively pull and transport the diaphragm 67 to the stacking assembly 40. When the first electrode 23 is transported to the stacking assembly 40, the pressing component 60 presses the diaphragm 67 sequentially onto the first electrode 23, then places the second electrode 33 on the diaphragm 67 and presses the diaphragm 67 onto the second electrode 33 again in the opposite direction. This cycle is repeated to form a Z-shaped stacked structure. During the reciprocating movement of the pressing component 60, the tension of the diaphragm 67 can be adjusted according to the pressing direction of the diaphragm 67.

[0024] Reference Figures 3 to 5 As shown, the covering assembly 60 includes: a support frame 61, a first guide roller 62, an active feeding roller 63, a clamping assembly 64, and a covering roller 65. The support frame 61 is mounted on the linear module 11. The first guide roller 62 is rotatably mounted on the support frame 61, and the diaphragm 67 can be pulled and guided from the first guide roller 62. The active feeding roller 63 is mounted on the support frame 61 and is driven by a drive motor 631 to pull and convey the diaphragm 67. The clamping assembly 64 is mounted on the support frame 61 and is parallel to the first guide roller 62 and the drive roller along the length direction. The distance between the clamping assembly 64 and the active feeding roller 63 is adjustable. There are at least two covering rollers 65 mounted on the support frame 61. The two covering rollers 65 clamp and pull the diaphragm 67 to sequentially cover and press it between the first electrode 23 and the second electrode 33.

[0025] In this embodiment, the diaphragm 67 can be pulled by the first guide roller 62, the active feeding roller 63, the clamping assembly 64, and the pressing roller 65. The active feeding roller 63 can be driven to rotate by the drive motor 631, so that when the active feeding roller 63 carries the diaphragm 67, it can be conveyed towards the pressing roller 65. During the stacking process, the linear module 11 drives the transport module 50 and the support frame 61 to move synchronously, so that the support frame 61 is synchronously driven by the linear module 11 to move towards the second electrode 33. Simultaneously, the diaphragm 67 is pulled, stretched, and stacked on the stacking assembly 40. At the same time, the transport module 50 moves the first electrode 23 from the first loading assembly 20... The diaphragm 67 is transported and placed on the diaphragm 67. As the linear module 11 drives the support frame 61 to move towards the first electrode 23, the diaphragm 67 is stretched and stacked on the first electrode 23. At this time, the transport module 50 transports the second electrode 33 from the second feeding assembly 30 and places it on the diaphragm 67. This process is repeated, driving the support frame 61 towards the second electrode 33, resulting in the diaphragm 67 being stacked in a Z-shaped layered structure between the first and second electrode 23. It is understood that when the diaphragm 67 is pressed onto the first electrode 23, the pressing roller 65 near the first feeding assembly 20 can apply pressure to the diaphragm 67 to complete the pressing operation. When the diaphragm 67 is pressed onto the second electrode 33, the pressing roller 65 near the second feeding assembly 30 can apply pressure to the diaphragm 67 to complete the pressing operation. This causes the two pressing rollers 65 to reciprocate, so that the diaphragm 67 and the first electrode 23 and the second electrode 33 are stacked into a Z-shaped stacked structure. In a preferred embodiment, by pre-determining the width of the first electrode 23 and the second electrode 33, the rotation of the active feeding roller 63 can be controlled by controlling the rotation parameters of the drive motor 631. The length of the diaphragm 67 conveyed is controlled by the rotation parameters of the drive motor 631, thereby achieving a zero-tension stacking operation. It can be understood that when the pressing roller... 65 When performing the operation of placing the first electrode 23 or the second electrode 33 on the diaphragm 67, the active feed roller 63 can maintain a continuous conveying action on the diaphragm 67, so that the width of the diaphragm 67 in the covering state on the stacking assembly 40 is slightly wider than the width of the first electrode 23 or the second electrode 33. This allows the diaphragm 67 to be covered on the first electrode 23 or the second electrode 33 in a relaxed state, thereby ensuring that the diaphragm 67 on the stacking assembly 40 is in a tension-free state during the covering and stacking process. In the tension-free state, the covering and stacking action of the diaphragm 67 can avoid damage to the diaphragm 67 caused by the pulling action, ensuring that the diaphragm 67 is subjected to more uniform force.Optionally, in some exemplary solutions, when determining the rotation parameters of the drive motor 631, a preset rotation speed and a preset rotation time corresponding to the widths of the first pole piece 23 and the second pole piece 33 can be determined by using the widths of the first pole piece 23 and the second pole piece 33. The drive motor 631 can then be controlled based on the preset rotation speed and preset rotation time.

[0026] Furthermore, during the traction and conveying of the diaphragm 67, the clamping assembly 64 includes a first cylinder 641, a sliding plate 642, and an adjusting roller 643. The first cylinder 641 is mounted on the support frame 61. The sliding plate 642 is slidably connected to the slide rail on the support frame 61 via a slider, and the sliding plate 642 is connected to the first cylinder 641, allowing the first cylinder 641 to push the sliding plate 642 to move. The adjusting roller 643 is rotatably connected to the sliding plate 642, allowing the adjusting roller 643 to move radially along with the sliding plate 642 and to move closer to or further away from the active feed roller 63 as driven by the first cylinder 641. Thus, when the diaphragm 67 is wound between the adjusting roller 643 and the active feed roller 63 for conveying, the first cylinder 641 can drive the adjusting roller 643 to clamp the diaphragm 67. Consequently, during the active feed roller 63 conveying the diaphragm 67, the diaphragm 67 can be conveyed more smoothly, avoiding wrinkles.

[0027] In a preferred embodiment, the support frame 61 is also provided with a deviation correction sensor 66. The deviation correction sensor 66 is movable along the length direction of the support frame 61 and is used to detect the deviation of the edge of the diaphragm 67. The deviation correction sensor 66 can slide on the support frame 61 through a sliding block, so that the deviation correction sensor 66 can detect the deviation of the edge of the diaphragm 67. In this way, when there are problems such as wrinkles or deformation at the edge of the diaphragm 67, the deviation correction sensor 66 can complete the detection in time, avoiding insufficient flatness of the diaphragm 67 during the stacking process.

[0028] Specifically, the machine body 10 is also provided with an unwinding roller 70, on which a diaphragm 67 is wound. Several second guide rollers 71 are provided in the conveying direction of the diaphragm 67. The diaphragm 67 is drawn from the unwinding roller 70 and conveyed to the pressing assembly 60 by the several second guide rollers 71. During the traction and conveying of the diaphragm 67, the diaphragm 67 can be wound and drawn from the second guide rollers 71 and sequentially drawn to the first guide roller 62, the active feeding roller 63, the clamping assembly 64 and the pressing roller 65, so that the diaphragm 67 is flatter during the traction and conveying process. As a preferred embodiment, at least two second guide rollers 71 are slidably provided on the machine body 10 and can be driven by a cylinder to slide, so that the tension of the diaphragm 67 can be adjusted by the cylinder driven by the two second guide rollers 71, ensuring that the tension of the diaphragm 67 can be dynamically adjusted.

[0029] In a preferred embodiment, a fixing frame 80 is provided between at least two transport modules 50. The fixing frame 80 is provided with a vertically movable cutting blade 81. The cutting blade 81 is driven by a third cylinder 82 to move closer to or away from the diaphragm 67. After completing the stacking and coating operations of several first electrode sheets 23 and second electrode sheets 33, the cutting blade 81 can be driven by the third cylinder 82 to move towards the diaphragm 67 to cut the diaphragm 67. It can be understood that when cutting the diaphragm 67, the sliding plate 642 can be driven by the first cylinder 641 to move towards the active feeding roller 63, so that the adjusting roller 643 moves with the sliding plate 642 to move closer to the active feeding roller 63, so that the diaphragm 67 located on the coating roller 65 is in a relaxed state, thereby making the tension of the diaphragm 67 on the stacking assembly 40 zero, thus avoiding damage to the diaphragm 67 during the cutting process and making the stacking effect of the diaphragm 67 better.

[0030] Reference Figure 2 and Figure 6 As shown, the first feeding assembly 20 includes a first stacking frame 21 and a first carrying module 22. The first stacking frame 21 is disposed on the machine body 10 and is formed by multiple guide rods. The first electrode 23 can be placed in the multiple guide rods and stacked sequentially, so that the first stacking frame 21 can stack and store a number of first electrode 23s. The first carrying module 22 is disposed adjacent to the first stacking frame 21 and is used to carry the first electrode 23. At least two conveying modules 50 are located above the first stacking frame 21 and the first carrying module 22 to convey the first electrode 23 of the first stacking frame 21 to the first carrying module 22, and simultaneously convey the first electrode 23 on the first carrying module 22 to the stacking assembly 40.

[0031] In this embodiment, when the linear module 11 drives the transport module 50 to transport the first electrode 23, the transport module 50 located above the first stacking frame 21 can remove the first electrode 23 from the first stacking frame 21. At this time, the transport module 50 located on the first support module 22 can remove the first electrode 23 from the first support module 22. When the linear module 11 drives the two transport modules 50 to move toward the stacking assembly 40, the two transport modules 50 can place the first electrode 23 on the first support module 22 and the stacking assembly 40 respectively, thereby completing the transport operation of the first electrode 23.

[0032] Furthermore, refer to Figure 2 and Figure 7As shown, the second feeding assembly 30 includes a second stacking frame 31 and a second carrying module 32. The second stacking frame 31 is disposed on the machine body 10 and is also formed by multiple guide rods to stack and store a number of second electrode sheets 33. The second carrying module 32 is disposed adjacent to the second stacking frame 31 and is used to carry the second electrode sheets 33. At least two conveying modules 50 are located above the second stacking frame 31 and the second carrying module 32 to convey the second electrode sheets 33 of the second stacking frame 31 to the second carrying module 32 and simultaneously convey the second electrode sheets 33 on the second carrying module 32 to the stacking assembly 40.

[0033] In this embodiment, when the linear module 11 drives the transport module 50 to transport the second electrode 33, the transport module 50 located above the second stacking frame 31 can remove the second electrode 33 from the second stacking frame 31. At this time, the transport module 50 located on the second support module 32 can remove the second electrode 33 from the second support module 32. When the linear module 11 drives the two transport modules 50 to move toward the stacking assembly 40, the two transport modules 50 can place the second electrode 33 on the second support module 32 and the stacking assembly 40 respectively, thereby completing the transport operation of the second electrode 33.

[0034] Reference Figure 2 and Figure 8 As shown, the stacking assembly 40 includes: a base frame 41, a first lead screw module 42, a negative pressure substrate 43, a second cylinder 44, and a clamping member 45. The base frame 41 is mounted on the machine body 10, the first lead screw module 42 is mounted on the base frame 41, the negative pressure substrate 43 is mounted on the first lead screw module 42 and is driven to move by the first lead screw module 42, and the negative pressure substrate 43 can be drawn to a negative pressure state by a vacuum device; the second cylinder 44 is located on the outside of the negative pressure substrate 43; the clamping member 45 is connected to the second cylinder 44 and extends to the negative pressure substrate 43, so as to move closer to or away from the negative pressure substrate 43 as driven by the second cylinder 44.

[0035] In this embodiment, when the first electrode 23 or the second electrode 33 is transported onto the negative pressure substrate 43, it can be adsorbed and fixed by the negative pressure substrate 43 in a negative pressure state. When the diaphragm 67 is pressed onto the first electrode 23 or the second electrode 33, the second cylinder 44 can drive the pressing member 45 to move toward the negative pressure substrate 43, so that the pressing member 45 can press the diaphragm 67 onto the first electrode 23 or the second electrode 33 at the edge of the diaphragm 67. It can be understood that there are at least four pressing members 45, which can press and fix the diaphragm 67 at the four focal points of the first electrode 23 or the second electrode 33, ensuring that the diaphragm 67 has a higher degree of adhesion to the first electrode 23 and the second electrode 33, and better flatness of the stack.

[0036] Reference Figure 2 , Figure 3 and Figure 9 As shown, each handling module 50 includes: a second lead screw module 51, a connecting bracket 52, and multiple suction cups 53. The second lead screw module 51 is mounted on the linear module 11. The connecting bracket 52 is connected to the second lead screw module 51 and is driven by the second lead screw module 51 to move closer to or away from the first feeding assembly 20, the second feeding assembly 30, and the stacking assembly 40. The multiple suction cups 53 are mounted on the connecting bracket 52 and can be connected to a vacuum device to perform suction and placement operations on the first electrode 23 and the second electrode 33, and move together with the connecting bracket 52 to adsorb and fix the first electrode 23 and / or the second electrode 33.

[0037] In this embodiment, the second lead screw module 51 can drive the connecting bracket 52 to rise or fall, and the second lead screw module 51 can move along the length direction of the machine body 10 with the drive of the linear module 11. When the first electrode 23 is transported, the two transport modules 50 located above the first loading assembly 20 can move downward synchronously, causing the second lead screw module 51 to drive the connecting bracket 52 to fall, and the first electrode 23 is adsorbed and fixed by multiple suction cups 53, and then driven upward by the second lead screw module 51. Thus, the linear module 11 drives the second lead screw module 51 to move towards the stacking assembly 40, so that the suction cups 53 located on the stacking assembly 40 can place the first electrode 23 on the stacking assembly 40, and the suction cups 53 located on the first bearing module 22 can place the first electrode 23 on the first bearing module 22; similarly. When transporting the second electrode 33, the two transport modules 50 located above the second feeding assembly 30 can move downwards synchronously, causing the second lead screw module 51 to drive the connecting bracket 52 to descend. The second electrode 33 is then attracted and fixed by multiple suction cups 53 and driven upwards by the second lead screw module 51. Thus, the linear module 11 drives the second lead screw module 51 to move towards the stacking assembly 40, allowing the suction cups 53 on the stacking assembly 40 to place the second electrode 33 on the stacking assembly 40, and the suction cups 53 on the second bearing module 32 to place the second electrode 33 on the second bearing module 32. Thus, the linear module 11 controls the synchronous movement of each transport module 50 to transport the first electrode 23 and the second electrode 33 respectively, resulting in better overall coordination and a higher degree of automation.

[0038] The tensionless stacking machine provided by the present invention uses multiple handling modules 50 to respectively grab the first electrode 23 fed by the first feeding component 20 and the second electrode 33 fed by the second feeding component 30. The first electrode 23 and the second electrode 33 can be sequentially transported onto the stacking assembly 40. When the covering assembly 60 pulls the diaphragm 67 onto the stacking assembly 40, the diaphragm 67 can be sequentially covered between the first electrode 23 and the second electrode 33. At the same time, when the diaphragm 67 is actively pulled and conveyed, the tension of the diaphragm 67 can be adjusted with high precision, ensuring that the diaphragm 67 is subjected to more uniform force during the pulling and conveying process, thereby improving the stacking effect of the diaphragm 67.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A tensionless stacking machine, characterized in that, include: The body, on which a linear module is provided; The first feeding component is disposed on the machine body and is used to feed the first electrode sheet; The second feeding component is arranged at an interval from the first feeding component and is used to feed the second electrode sheet. A stacking assembly is disposed between the first feeding assembly and the second feeding assembly, and is used to sequentially receive the first electrode sheet and the second electrode sheet; Multiple transport modules are synchronously and movably mounted on the linear module, used to respectively grab the first electrode sheet fed by the first feeding component and grab the second electrode sheet fed by the second feeding component, and transport the first electrode sheet and the second electrode sheet sequentially onto the stacking assembly; A pressing assembly is movably disposed on the linear module and located above the stacking assembly, for actively pulling and conveying the diaphragm onto the stacking assembly to press the diaphragm sequentially between the first electrode and the second electrode.

2. The tensionless stacking machine according to claim 1, characterized in that, The overlay assembly includes: A support frame, which is mounted on the linear module; A first guide roller is rotatably mounted on the support frame; An active feeding roller is mounted on the support frame and is driven by a drive motor to actively traction and convey the diaphragm. A clamping assembly is disposed on the support frame and is parallel to the first guide roller and the drive roller along the length direction, and the distance between the clamping assembly and the active feeding roller is adjustable; A pressure roller, which is mounted on the support frame, clamps and pulls the diaphragm to sequentially press it between the first electrode and the second electrode.

3. The tensionless stacking machine according to claim 2, characterized in that, The clamping assembly includes: The first cylinder is mounted on the support frame; A sliding plate, which is slidably connected to the support frame and connected to the first cylinder; An adjusting roller is rotatably connected to the sliding plate and is driven by the first cylinder to move closer to or further away from the active feed roller, and the diaphragm is conveyed from between the adjusting roller and the active feed roller to the pressing roller.

4. The tensionless stacking machine according to claim 2, characterized in that, The support frame is also equipped with a correction sensor, which is movable along the length of the support frame and is used to detect the offset of the edge of the diaphragm.

5. The tensionless stacking machine according to claim 1, characterized in that, The first feeding component includes: The first stacking frame is mounted on the machine body and is used to stack and store a plurality of the first electrode sheets. A first support module is disposed adjacent to the first stacking frame and is used to support the first electrode sheet. At least two transport modules are located above the first stacking frame and the first support module to transport the first electrode sheet from the first stacking frame to the first support module and simultaneously transport the first electrode sheet from the first support module to the stacking assembly.

6. The tensionless stacking machine according to claim 1, characterized in that, The second feeding component includes: The second stacking frame is mounted on the machine body and is used to stack and store a number of second electrode plates. The second carrier module is arranged adjacent to the second stacking frame and is used to carry the second electrode sheet. At least two of the transport modules are located above the second stacking frame and the second carrier module to transport the second electrode sheet from the second stacking frame to the second carrier module and simultaneously transport the second electrode sheet from the second carrier module to the stacking assembly.

7. The tensionless stacking machine according to claim 1, characterized in that, The stacking assembly includes: A base frame, which is mounted on the machine body; The first lead screw module is mounted on the base frame; A negative pressure substrate is disposed on the first lead screw module and is driven to move by the first lead screw module; The second cylinder is located on the outside of the negative pressure substrate; A clamping member, which is connected to the second cylinder and extends onto the negative pressure substrate, so as to move closer to or away from the negative pressure substrate as driven by the second cylinder.

8. The tensionless stacking machine according to claim 1, characterized in that, Each of the aforementioned transport modules includes: The second lead screw module is disposed on the linear module; A connecting bracket is connected to the second lead screw module and is driven by the second lead screw module to move closer to or further away from the first feeding assembly, the second feeding assembly, and the stacking assembly; Multiple suction cups are disposed on the connecting bracket and move together with the connecting bracket to adsorb and fix the first electrode and / or the second electrode.

9. The tensionless stacking machine according to claim 1, characterized in that, The machine body is also provided with an unwinding roller, on which the diaphragm is wound, and a plurality of second guide rollers are provided in the conveying direction of the diaphragm. The diaphragm is drawn from the unwinding roller and conveyed to the pressing assembly via the plurality of second guide rollers.

10. The tensionless stacking machine according to claim 1, characterized in that, A mounting frame is provided between at least two of the transport modules, and a vertically movable cutting blade is provided on the mounting frame. The cutting blade is driven by a third cylinder to move closer to or away from the diaphragm.

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