Core rod insertion mechanism and battery cell manufacturing device

Abstract

The utility model provides a core rod inserting mechanism and a battery cell manufacturing device, the core rod inserting mechanism comprises a feeding structure, a transfer structure and a mounting seat, the feeding structure is provided with a material conveying channel, and the material conveying channel is used for conveying a core rod in a first direction; a transfer groove is formed in the transfer structure, and a guide groove is formed in the mounting seat; the transfer structure can move in the second direction to have a first position and a second position, the transfer groove is opposite to the conveying channel under the condition that the transfer structure is located at the first position, the transfer groove is opposite to the guide groove under the condition that the transfer structure is located at the second position, and the second direction intersects with the first direction. And under the condition that the transfer structure is switched from the first position to the second position, the transfer structure drives the core rod in the transfer groove to move, and the transfer groove is opposite to the guide groove, so that the core rod in the transfer groove is transferred to the guide groove, the conveying continuity of the core rod is ensured, and the production efficiency of the battery cell is improved.

Description

Technical Field

[0001] This utility model belongs to the field of battery cell manufacturing technology. Specifically, this utility model relates to a core rod insertion mechanism and a battery cell manufacturing device. Background Technology

[0002] In the field of battery cell manufacturing, the mandrel, as an important component that is precisely inserted into the center hole of the battery cell to achieve structural support, needs to be continuously fed to a position opposite to the center hole of the battery cell.

[0003] In related technologies, the feeding device for core rods often adopts a feeding method of vibratory feeder combined with guide rail. In actual operation, the feeding device is prone to jamming problems, which not only leads to production interruption, but also reduces the overall production efficiency of battery cells and causes a decline in product consistency. Utility Model Content

[0004] One objective of this invention is to provide a new technical solution for a mandrel insertion mechanism and a cell manufacturing apparatus.

[0005] According to a first aspect of the present invention, a mandrel insertion mechanism is provided, comprising:

[0006] The feeding structure has a feeding channel for conveying a mandrel along a first direction;

[0007] A transfer structure and a mounting base, wherein the transfer structure is provided with a transfer groove and the mounting base is provided with a guide groove;

[0008] The transfer structure is movable along a second direction to have a first position and a second position. When the transfer structure is in the first position, the transfer trough is opposite to the material conveying channel. When the transfer structure is in the second position, the transfer trough is opposite to the guide trough. The second direction intersects the first direction.

[0009] Optionally, the guide groove is opposite to the insertion path of the core rod into the battery cell;

[0010] The transfer trough can receive the mandrels conveyed by the material conveying channel and transfer the mandrels to the guide trough.

[0011] Optionally, the end of the feeding structure near the transfer structure is connected to the mounting base, and the transfer structure is slidably connected to the mounting base in the second direction.

[0012] Optionally, the feeding structure includes a conveying trough and a conveying plate, a first channel is formed on the conveying trough, and a second channel is formed on the conveying plate. The first channel and the second channel are connected along the first direction to form the material conveying channel.

[0013] Optionally, the feeding structure includes an air blowing component disposed in the conveying trough and having an air blowing port facing the first channel.

[0014] Optionally, the feeding structure includes a buffer unit, the buffer unit includes a buffer rod and a buffer drive, the conveyor plate is provided with a first through hole communicating with the second channel, the buffer rod is movably inserted through the first through hole, and the buffer drive is connected to the buffer rod.

[0015] Optionally, when the transfer slot is opposite to the second channel, the buffer rod exits the second channel;

[0016] When the transfer slot is misaligned with the second channel, the buffer rod can extend into the second channel to press against the core rod.

[0017] Optionally, it further includes a position adjustment structure, the position adjustment structure including at least one of a first adjustment member and a second adjustment member;

[0018] In the case where the position adjustment structure includes a first adjustment member and a second adjustment member, the first adjustment member and the second adjustment member are respectively disposed on both sides of the transfer structure in the second direction.

[0019] Optionally, the position adjustment structure includes a first adjusting member and a second adjusting member, the first adjusting member including a first fixing plate and a first adjusting screw, and the second adjusting member including a second fixing plate and a second adjusting screw;

[0020] The transfer structure is provided with a limit block. The first fixing plate and the second fixing plate are respectively spaced apart on both sides of the limit block in the second direction. The first adjusting screw is screwed to the first fixing plate and is used to abut against the limit block. The second adjusting screw is screwed to the second fixing plate and is used to abut against the limit block.

[0021] Optionally, it also includes a pressing structure, which includes a guide rod and a pressing part. The guide rod is connected to the transfer structure, and the transfer structure is provided with a second through hole communicating with the transfer groove. The pressing part is movably sleeved on the guide rod and is at least partially located in the second through hole.

[0022] Optionally, the pressing structure includes an elastic part, and the pressing part includes a pressure plate and a pressure rod;

[0023] The pressure plate is sleeved on the guide rod, the pressure rod is connected to the pressure plate and passes through the second through hole, and the elastic part is sleeved on the pressure rod and located between the pressure plate and the transfer structure.

[0024] Optionally, it also includes a guide structure and a pusher drive structure. The pusher drive structure includes a push rod drive member and a push rod. The push rod is opposite to the guide groove. The push rod drive member can drive the push rod to move so that the mandrel in the guide groove is pushed into the guide structure.

[0025] Optionally, the guide structure includes a guide seat;

[0026] Multiple guide members, each guide member including a connecting section and a plug-in section, the guide member being rotatably connected to the guide seat via the connecting section, the multiple plug-in sections forming a plug-in portion and having a closed state and an open state.

[0027] Optionally, a first guide channel is formed in the guide seat, and a second guide channel is formed in the insertion part, wherein the first guide channel and the second guide channel are in relative communication.

[0028] Optionally, when the plug-in portion is in the closed state, the plurality of plug-in segments form a circumferentially closed plug-in portion.

[0029] Optionally, the outer surface of the plug segment forms a first arc surface;

[0030] In the direction in which the battery cell is inserted into the connector, the radius of the first arc surface gradually decreases; or,

[0031] In the direction in which the battery cell is inserted into the connector, the radii of the first arc surface are equal.

[0032] Optionally, the inner surface of the plug segment forms a second arc surface;

[0033] In the direction in which the battery cell is inserted into the connector, the radius of the second arc surface gradually decreases; or,

[0034] In the direction in which the battery cell is inserted into the connector, the radii of the second arc surface are equal.

[0035] Optionally, it also includes a pin drive structure, which includes a pin base, a pin drive component, and a connector. The pin base is fixedly disposed, the pin drive component is disposed on the pin base, and the connector is connected between the pin drive component and the guide structure.

[0036] According to a second aspect of the present invention, a battery cell manufacturing apparatus is provided, the battery cell manufacturing apparatus including the core rod insertion mechanism described in the first aspect.

[0037] One technical advantage of this utility model is:

[0038] This application provides a mandrel insertion mechanism, which includes a feeding structure, a transfer structure, and a mounting base. The feeding structure has a conveying channel for conveying mandrels along a first direction. The transfer structure has a transfer groove, and the mounting base has a guide groove. The transfer structure is movable along a second direction to have a first position and a second position. When the transfer structure is in the first position, the transfer groove is opposite to the conveying channel. When the transfer structure is in the second position, the transfer groove is opposite to the guide groove, and the second direction intersects the first direction. When the transfer structure switches from the first position to the second position, the transfer structure drives the mandrel in the transfer groove to move, causing the transfer groove to be opposite the guide groove, so as to transfer the mandrel in the transfer groove to the guide groove, ensuring the continuity of mandrel conveying and improving the production efficiency of the battery cell.

[0039] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0040] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0041] Figure 1 A schematic diagram of a mandrel insertion mechanism provided in one embodiment of this utility model. Figure 1 ;

[0042] Figure 2 A schematic diagram of a mandrel insertion mechanism provided in one embodiment of this utility model. Figure 2 ;

[0043] Figure 3 A schematic diagram showing the cooperation between the delivery groove and the air blowing component of a mandrel insertion mechanism according to an embodiment of the present invention;

[0044] Figure 4 A partial schematic diagram of a mandrel insertion mechanism provided in one embodiment of this utility model. Figure 1 ;

[0045] Figure 5 A partial schematic diagram of a mandrel insertion mechanism provided in one embodiment of this utility model. Figure 2 ;

[0046] Figure 6 A schematic diagram of the pressing structure of a mandrel insertion mechanism provided in one embodiment of the present utility model;

[0047] Figure 7 A schematic diagram of the pin drive structure of a mandrel insertion mechanism provided in one embodiment of the present invention;

[0048] Figure 8 A side view of the pin drive structure of a mandrel insertion mechanism provided in one embodiment of the present invention;

[0049] Figure 9 A schematic diagram of the guide structure of a mandrel insertion mechanism provided in one embodiment of the present invention;

[0050] Figure 10 Rear view of the guide structure of a mandrel insertion mechanism provided in one embodiment of the present utility model;

[0051] Figure 11 for Figure 10 Cross-sectional view along plane AA;

[0052] Figure 12 This is a schematic diagram of the internal guide structure of a mandrel insertion mechanism according to an embodiment of the present invention.

[0053] The components are as follows: 1. Feeding structure; 11. Conveying channel; 12. Conveying trough; 121. First channel; 13. Conveying plate; 131. Second channel; 14. Vibrating plate; 15. Air blowing component; 16. Buffer unit; 161. Buffer rod; 162. Buffer drive component; 2. Transfer structure; 21. Transfer trough; 22. Limiting block; 23. Sliding plate; 24. Sliding plate drive component; 25. Connecting plate; 3. Mounting base; 31. Guide groove; 32. Base; 33. Conveying plate base; 4. Position adjustment structure; 41. First adjusting component; 42. Second adjusting component; 5. Pressing structure; 51. Guide rod; 52. Pressing part; 521. Pressure plate; 522. Pressure rod; 53. Elastic part; 54. Pressing drive component.

[0054] 100. Guide structure; 101. Guide seat; 1013. First guide channel; 102. Guide component; 1021. Connecting section; 1022. Insertion section; 10221. Second guide channel; 10222. First arc surface; 10223. Second arc surface; 1023. Insertion part; 103. Bearing; 104. Elastic component;

[0055] 200. Pin drive structure; 201. Pin base; 202. Pin drive component; 203. Connector;

[0056] 300. Push pin drive structure; 301. Push rod drive component; 302. Push rod; 303. Push rod guide component;

[0057] 400, battery cell; 500, battery rod. Detailed Implementation

[0058] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0059] The embodiments of this application will now be described in detail, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0060] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0061] In the description of this application, 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", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0062] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0063] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0064] In related technologies, after the battery cell is wound, a central hole is usually left on it. To maintain the size of the central hole, a mandrel is generally inserted into this central hole. As an important component that is precisely inserted into the central hole of the battery cell to achieve structural support, the mandrel needs to be continuously fed to a position corresponding to the central hole of the battery cell.

[0065] In related technologies, the feeding device for core rods often adopts a feeding method of vibratory feeder combined with guide rail. In actual operation, the feeding device is prone to jamming problems, which not only leads to production interruption, but also reduces the overall production efficiency of battery cells and causes a decline in product consistency.

[0066] When the transfer structure is switched from the first position to the second position, the core insertion mechanism provided in this application causes the core in the transfer slot to move, and the transfer slot is aligned with the guide slot, so that the core in the transfer slot can be transferred to the guide slot, ensuring the continuity of core conveying and improving the production efficiency of the battery cell.

[0067] Reference Figure 1 and Figure 2 This application provides a mandrel insertion mechanism, which includes:

[0068] The feeding structure 1 has a conveying channel 11, which is used to convey the mandrel 500 along a first direction;

[0069] The transfer structure 2 and the mounting base 3 are provided. The transfer structure 2 is provided with a transfer groove 21 and the mounting base 3 is provided with a guide groove 31.

[0070] The transfer structure 2 can move along the second direction to have a first position and a second position. When the transfer structure 2 is in the first position, the transfer trough 21 is opposite to the material conveying channel 11. When the transfer structure 2 is in the second position, the transfer trough 21 is opposite to the guide trough 31. The second direction intersects the first direction.

[0071] In the above embodiment, the feeding structure 1 can transport the stored mandrel 500 to the transfer structure 2 through the conveying channel 11. The conveying channel 11 provides a clear path for the conveying of the mandrel 500, ensuring the stability and directionality of the mandrel 500 during the conveying process and avoiding the deviation or damage of the mandrel 500.

[0072] See Figure 1When the transfer structure 2 moves along the second direction, it can transfer the mandrel 500 conveyed by the feeding structure 1 to the guide groove 31 on the mounting base 3 via the transfer groove 21. For example, after the transfer structure 2 receives the mandrel 500 conveyed by the feeding channel 11 through the transfer groove 21, the transfer structure 2 can move along the second direction to transfer the mandrel 500 to the guide groove 31 after the transfer groove 21 approaches the guide groove 31. The guide groove 31 can provide guidance for the mandrel 500 during the process of inserting it into the center hole of the battery cell 400, ensuring that the mandrel 500 can smoothly enter the target position in the battery cell 400.

[0073] In the above embodiments, the first direction can be Figure 1 In the X direction, the second direction can be Figure 1 The Y-direction and X-direction intersect, meaning the X and Y directions are not parallel. The material conveying channel 11 can convey the core rod 500 to the transfer structure 2 along the X-direction. The transfer structure 2 can move along the Y-direction to switch between a first position and a second position. When the transfer structure 2 is in the first position, the transfer trough 21 is opposite to the material conveying channel 11, so that the core rod 500 in the material conveying channel 11 can be transferred to the transfer trough 21. When the transfer structure 2 switches from the first position to the second position, the transfer structure 2 drives the core rod 500 in the transfer trough 21 to move, and makes the transfer trough 21 opposite to the guide trough 31, so that the core rod 500 in the transfer trough 21 can be transferred to the guide trough 31, ensuring the continuity of the core rod 500 conveying and improving the production efficiency of the battery cell.

[0074] In one embodiment, the first direction and the second direction are perpendicular to each other, that is, the direction in which the conveying channel 11 conveys the mandrel 500 is perpendicular to the direction in which the transfer structure 2 moves. This allows the feeding structure 1 and the transfer structure 2 to not only make more efficient use of the space provided by the mandrel insertion mechanism, but also to avoid mutual interference between the conveying of the conveying channel 11 and the movement of the transfer structure 2, making the overall layout of the mandrel insertion mechanism more compact.

[0075] In one embodiment, the transfer structure 2 can be slidably mounted on the mounting base 3. For example, the mounting base 3 is provided with a slide rail along the second direction, and the transfer structure 2 has a slide groove. The slide groove and the slide rail slide together to ensure the stability of the transfer structure 2 moving along the second direction.

[0076] In one embodiment, see Figure 1 and Figure 4The mounting base 3 includes a base 32 and a conveyor plate base 33. The transfer structure 2 includes a slidable slide plate 23 on the upper side of the conveyor plate base 33 and a slide plate drive 24 for moving the slide plate 23. In the initial state of the transfer structure 2, the feeding channel 11 of the feeding structure 1 is opposite to the transfer trough 21. The mandrel in the feeding channel 11 enters the transfer trough 21. Then, the slide plate drive 24 drives the slide plate 23 to move along the second direction through the connecting plate 25. The transfer trough 21 moves to the top of the guide groove 31, so that the mandrel 500 in the transfer trough 21 can enter the guide groove 31, ensuring the smooth transfer of the mandrel 500.

[0077] In some embodiments, see Figure 1 and Figure 4 The guide groove 31 is opposite to the insertion path of the core rod 500 into the cell 400;

[0078] The transfer trough 21 can receive the mandrels conveyed by the material conveying channel 11 and transfer the mandrels to the guide trough 31.

[0079] In the above embodiment, the guide groove 31 is opposite to the insertion path of the core rod 500, that is, the insertion path of the core rod 500 is the extension path of the guide groove 31. This can ensure the accuracy and consistency of the core rod 500 when it is inserted into the center hole of the battery cell 400, reduce the error in the insertion process of the core rod 500, and improve the accuracy of battery cell assembly.

[0080] The transfer trough 21 serves as a transition area for the core rod 500 to move from the conveying channel 11 to the guide trough 31. It can efficiently receive and transfer the core rod 500, simplifying the core rod conveying process and reducing the problem of core rod 500 jamming during the conveying process, thereby improving the overall production efficiency of the battery cell 400.

[0081] When transferring the mandrel 500 from the transfer groove 21 to the guide groove 31, the openings of the transfer groove 21 and the guide groove 31 can be aligned vertically to facilitate the mandrel 500 falling into the guide groove 31. The relative arrangement of the guide groove 31 and the transfer groove 21 can reduce the shaking and vibration of the mandrel 500 during the transfer process, and improve the stability and reliability of the transfer of the mandrel 500.

[0082] In some embodiments, see Figure 1 and Figure 2 The end of the feeding structure 1 near the transfer structure 2 is connected to the mounting base 3, and the transfer structure 2 is slidably connected to the mounting base 3 in the second direction.

[0083] In the above embodiment, the transfer structure 2 can be slidably connected to the mounting base 3 in the second direction, so that the transfer structure 2 can smoothly receive the mandrel 500 from the feeding structure 1 and transfer the received mandrel 500 to the guide groove 31, reducing the obstruction and stagnation of the mandrel 500 during the transfer process and improving the efficiency and stability of the mandrel 500 transfer.

[0084] In addition, the feeding structure 1, the transfer structure 2 and the mounting base 3 can be set independently to facilitate the adjustment of the structure and position of the feeding structure 1, the transfer structure 2 and the mounting base 3, thereby improving the flexibility of the setting of each structure.

[0085] In some embodiments, see Figure 1 and Figure 2 The feeding structure 1 includes a conveying trough 12 and a conveying plate 13. A first channel 121 is formed on the conveying trough 12, and a second channel 131 is formed on the conveying plate 13. The first channel 121 and the second channel 131 are connected along a first direction to form a material conveying channel 11.

[0086] In the above embodiment, the first channel 121 can be a conveying channel that is completely open to the outside, which facilitates the conveying of the mandrel 500 and allows observation of information such as the conveying position and speed of the mandrel 500; the second channel 131 is a second channel that is only open at one end and is enclosed by the conveying plate 13 to avoid obstacles during the conveying of the mandrel 500. In the direction of mandrel 500 conveying, the first channel 121 and the second channel 131 are connected in sequence to ensure the efficiency of mandrel 500 conveying.

[0087] In one embodiment, see Figure 1 The feeding structure 1 includes a vibratory feeder 14, which is located at the end of the conveying trough 12 away from the conveying plate 13. The vibratory feeder 14 can convey the core rod along a first direction at the starting end of the conveying trough 12. After being conveyed by the conveying trough 12 and the conveying plate 13, the core rod enters the slide plate 23. The slide plate 23 moves along a second direction, and the slide plate 23 drives the core rod to enter the guide groove 31 when the transfer groove 21 is opposite to the guide groove 31, so that the push rod can push the core rod into the center hole of the battery cell.

[0088] In some embodiments, the second channel 131 may be formed inside the conveyor plate 13 to ensure the integrity of the second channel 131; or the second channel 131 may be formed by the conveyor plate 13 and the mounting base 3 to improve the compactness of the entire structure.

[0089] In some embodiments, the conveyor plate 13 may be fixedly connected to the mounting base 3 to facilitate the disassembly and installation of the mandrel insertion mechanism; or the conveyor plate 13 may be integrally formed with the mounting base 3 to ensure the structural integrity of the mandrel insertion mechanism.

[0090] In some embodiments, see Figure 1 and Figure 3 The feeding structure 1 includes one or more air blowing elements 15, which are disposed in the conveying trough 12. The air blowing element 15 has an air blowing port facing the first channel so that the air blowing element 15 blows air towards the first channel.

[0091] In the above embodiment, the air blowing component 15 can blow air towards the first channel in the feeding direction of the first channel to increase the power of conveying the mandrel 500 in the first channel; multiple air blowing components 15 blow air on the mandrel in the first channel, so that the mandrel in the first channel is quickly conveyed to the downstream transfer structure 2, thereby improving the efficiency of mandrel conveying.

[0092] In some embodiments, see Figure 1 The feeding structure 1 includes a buffer unit 16, which includes a buffer rod 161 and a buffer drive 162. The conveyor plate 13 is provided with a first through hole that connects to the second channel 131. The buffer rod 161 is movably inserted through the first through hole, and the buffer drive 162 is connected to the buffer rod 161.

[0093] In the above embodiment, when the slide plate 23 moves to the transfer groove 21 and is misaligned with the conveying channel 11, the buffer unit 16 is activated, and the buffer drive 162 drives the buffer rod 161 to press against the mandrel 500 in the second channel 131 to prevent the mandrel 500 from colliding with the slide plate 23; when the slide plate 23 moves to the transfer groove 21 and is opposite to the conveying channel 11, the buffer unit 16 releases its resistance to the mandrel 500 in the second channel 131 to ensure the efficiency of the mandrel 500 transmission.

[0094] In the above embodiments, the buffer drive 162 can be a cylinder, hydraulic cylinder or motor, etc., to ensure the accuracy and stability of the buffer drive 162 driving the buffer rod 161.

[0095] In some embodiments, when the transfer slot 21 is opposite to the second channel 131, the buffer rod 161 exits the second channel 131;

[0096] With the transfer slot 21 and the second channel 131 misaligned, the buffer rod 161 can extend into the second channel 131 to press against the core rod.

[0097] In the above embodiment, the transfer process of the mandrel from the second channel 131 to the transfer groove 21 can be flexibly controlled by the extension and retraction of the buffer rod 161. When the transfer groove 21 is opposite to the second channel 131, the buffer rod 161 retracts from the second channel, providing convenient channel space for the transfer of the mandrel 500; when the transfer groove 21 is misaligned with the second channel 131, if the mandrel 500 has already entered the second channel, the buffer rod 161 extends into the second channel and presses against the mandrel 500, thereby limiting the mandrel 500 and preventing the mandrel 500 from impacting the solid part of the slide plate 23.

[0098] In some embodiments, see Figure 1 The mandrel insertion mechanism also includes a position adjustment structure 4, which includes at least one of a first adjustment member 41 and a second adjustment member 42.

[0099] When the position adjustment structure 4 includes a first adjustment member 41 and a second adjustment member 42, the first adjustment member 41 and the second adjustment member 42 are respectively disposed on at least one side of the transfer structure 2 in the second direction.

[0100] In the above embodiments, during the movement of the transfer structure 2 in the second direction, the position adjustment structure 4 can precisely adjust the fixed position of the transfer structure 2, for example, the transfer structure 2 can be positioned in a first position or a second position. At least one of the first adjusting member 41 and the second adjusting member 42 can be used to position the transfer structure 2 on its side in the second direction.

[0101] In one embodiment, the position adjustment structure 4 includes a first adjustment member 41, which can hold the transfer structure 2 on the side to facilitate positioning of the transfer structure 2.

[0102] In another embodiment, the position adjustment structure 4 includes a first adjustment member 41 and a second adjustment member 42. Through the synergistic effect of the first adjustment member 41 and the second adjustment member 42, they can respectively abut against the transfer structure 2 on both sides to achieve position adjustment of the transfer structure 2.

[0103] In some embodiments, the position adjustment structure 4 includes a first adjustment member 41 and a second adjustment member 42. The first adjustment member 41 includes a first fixing plate and a first adjustment screw, and the second adjustment member 42 includes a second fixing plate and a second adjustment screw.

[0104] The transfer structure 2 is provided with a limit block 22. The first fixing plate and the second fixing plate are respectively spaced apart on both sides of the limit block 22 in the second direction. The first adjusting screw is screwed to the first fixing plate and is used to abut against the limit block 22. The second adjusting screw is screwed to the second fixing plate and is used to abut against the limit block 22.

[0105] In the above embodiment, the first fixing plate and the second fixing plate are respectively connected to the first adjusting screw and the second adjusting screw by screwing. The first adjusting screw and the second adjusting screw can abut against the limiting block 22 on both sides of the limiting block 22. By rotating and adjusting the screwing depth of the first adjusting screw and the second adjusting screw on the first fixing plate and the second fixing plate respectively, the position of the limiting block 22 in the second direction can be precisely controlled, thereby realizing the precise adjustment of the position of the transfer groove 21 and ensuring that the position of the transfer structure 2 remains stable after adjustment.

[0106] Furthermore, the fit between the screw and the fixing plate in the position adjustment structure 4 facilitates the disassembly and replacement of the screw, thereby improving the adjustment flexibility of the position adjustment structure 4.

[0107] In some embodiments, see Figure 1 , Figure 5 and Figure 6 The mandrel insertion mechanism also includes a pressing structure 5, which includes a guide rod 51 and a pressing part 52. The guide rod 51 is connected to the transfer structure 2. The transfer structure 2 is provided with a second through hole that communicates with the transfer groove 21. The pressing part 52 is movably sleeved on the guide rod 51 and is at least partially located in the second through hole.

[0108] In the above embodiment, the guide rod 51 provides a precise movement path for the pressing part 52, ensuring that the pressing part 52 can maintain linear movement during movement and avoiding skewing or shaking. When the transfer groove 21 is not aligned with the guide groove 31, the pressing part 52 retracts into the second through hole to avoid interference with the core rod 500 in the transfer groove 21; when the transfer groove 21 is aligned with the guide groove 31, the pressing part 52 extends into the transfer groove 21, improving the accuracy of the pressing part 52 in pushing the core rod 500 in the transfer groove 21 into the guide groove 31.

[0109] In some embodiments, see Figure 5 and Figure 6 The pressing structure 5 includes an elastic part 53, and the pressing part 52 includes a pressure plate 521 and a pressure rod 522;

[0110] The pressure plate 521 is sleeved on the guide rod 51, the pressure rod 522 is connected to the pressure plate 521 and passes through the second through hole, and the elastic part 53 is sleeved on the pressure rod 522 and located between the pressure plate 521 and the transfer structure 2.

[0111] In the above embodiment, the pressure plate 521 is sleeved on the guide rod 51, providing guidance and support for the pressure plate 521 and the pressure rod 522; when the pressing part 52 moves, the pressure rod 522 extends into the transfer groove 21, which can press the core rod in the transfer groove 21 into the guide groove 31. At this time, the elastic part 53 is compressed between the pressure plate 521 and the transfer structure 2; the elastic part 53 is located between the pressure plate 521 and the transfer structure 2, playing the role of buffering and adjusting the pressing force, and can realize the reset of the pressing part 52 after the pressing is completed.

[0112] In the initial state of the pressing structure 5, the pressing part 52 is away from the sliding plate 23; when the transfer groove 21 moves to the top of the guide groove 31, the pressing drive member 54 presses against the pressure plate 521 to drive the pressing part 52 to move, the elastic part 53 is compressed, and the pressure plate 521 drives the pressure rod 522 to press against the core rod 500 in the transfer groove 21, which improves the efficiency of the core rod 500 from the transfer groove 21 to the guide groove 31.

[0113] In some embodiments, see Figure 1 and Figure 4 The mandrel insertion mechanism also includes a guide structure 100 and a pusher drive structure 300. The pusher drive structure 300 includes a pusher drive member 301 and a pusher 302. The pusher 302 is opposite to the guide groove 31. The pusher drive member 301 can drive the pusher 302 to move so that the mandrel in the guide groove 31 is pushed into the guide structure 100.

[0114] In the above embodiments, the push rod drive 301 can be a motor or a cylinder. After the guide structure 100 is inserted into the center hole of the battery cell 400, the push rod drive 301 can ensure that the push rod 302 pushes the core rod accurately and stably through the guide structure 100 to be inserted into the center hole of the battery cell 400 by precisely controlling the movement of the push rod 302.

[0115] In another embodiment, see Figure 4 The push rod drive structure 300 includes a push rod guide 303, which has a third through hole opposite to the guide groove 31. The push rod 302 passes through the third through hole and remains opposite to the guide groove 31, thus ensuring the accuracy of the push rod drive 301 in controlling the movement of the push rod 302.

[0116] In some embodiments, see Figures 9 to 12 The guide structure 100 includes a guide seat 101;

[0117] Multiple guide members 102, each guide member 102 includes a connecting section 1021 and a plug-in section 1022. The guide member 102 is rotatably connected to the guide seat 101 via the connecting section 1021. The multiple plug-in sections 1022 form a plug-in part 1023 and have a closed state and an open state.

[0118] When the plug portion 1023 is in the closed state, the plug portion 1023 is used to insert into the center hole of the battery cell; when the plug portion 1023 switches from the closed state to the open state, the core rod can be inserted into the center hole of the battery cell through the plug portion 1023.

[0119] In the above embodiment, the guide 102 has an insertion end facing the battery cell 400 and an inlet end facing away from the battery cell 400, see [link to previous embodiment]. Figure 11 and Figure 12 Each guide member 102 is rotatably connected to the guide seat 101 via a connecting section 1021. For example, the connecting section 1021 is rotatably connected to the guide seat 101 via a bearing 103 or a rotating shaft, which facilitates the closing of multiple guide members 102. The circumferential dimension of the plug-in part 1023 in the closed state becomes smaller, which makes it easier for the insertion end on the plug-in part 1023 to be inserted into the center hole of the battery cell 400.

[0120] The guide 102's inlet end can have an opening larger than the core rod. The core rod 500 is inserted into the guide 102 through the inlet end opening, and can push multiple insertion segments 1022 to spread out, that is, to open up multiple guides 102, making it easier for the core rod 500 to pass through the guides 102 and enter the center hole of the battery cell. Since the multiple insertion segments 1022 are spaced between the core rod 500 and the inner wall of the center hole of the battery cell 400, direct contact between the end edge of the core rod 500 and the inner wall of the center hole is avoided, thus preventing damage to the battery cell and ensuring the integrity of the battery cell structure.

[0121] For example, the inner wall of the center hole of the battery cell 400 is the innermost diaphragm. By using the insertion section 1022 between the core rod 500 and the inner wall of the center hole of the battery cell 400, the end of the core rod 500 can be prevented from scratching the innermost diaphragm when it is inserted into the inner wall of the center hole of the battery cell 400.

[0122] In the above embodiment, the insertion segments 1022 of multiple guide members 102 form an annular insertion portion 1023, and the multiple insertion segments 1022 form a guide channel that matches the core rod, so that when the core rod is inserted into the center hole of the battery cell through the guide channel, it always moves along the central axis formed by the center of the multiple guide members 102, thus ensuring the accuracy of the core rod 500 being inserted into the center hole of the battery cell 400.

[0123] After the core rod 500 is inserted into the center hole of the battery cell 400, or after the core rod 500 extends out of the insertion section 1022, the insertion part 1023 can be removed from the center hole of the battery cell 400 to ensure the structural integrity of the battery cell 400 and the core rod 500.

[0124] In one embodiment, the connecting segments 1021 of the multiple guide members 102 are connected to the guide seat 101 at equal intervals, so that while the multiple guide members 102 maintain the same structure, the multiple guide members 102 can be accurately closed and opened.

[0125] In the above embodiments, when the plug-in portion 1023 is in the closed state, the size of the plug-in portion 1023 is small, which makes it easier for the plug-in portion 1023 to be inserted into the center hole of the battery cell and reduces the difficulty of insertion. When it is necessary to insert the core rod, the plug-in portion 1023 can be switched to the open state under the push of the core rod 500, or the plug-in portion 1023 can be switched to the open state by itself, thereby allowing the core rod 500 to enter the center hole of the battery cell 400 through the plug-in portion 1023, which improves the convenience and flexibility of inserting the core rod 500 into the battery cell 400.

[0126] In some embodiments, see Figure 10 and Figure 11 A first guide channel 1013 is formed in the guide seat 101, and a second guide channel 10221 is formed in the insertion part 1023. The first guide channel 1013 and the second guide channel 10221 are connected to each other.

[0127] In the above embodiments, the connection between the first guide channel 1013 and the second guide channel 10221 provides a clear insertion path and direction for the core rod 500, which helps the core rod 500 to be accurately inserted into the center hole of the cell 400, and avoids damage to the core rod 500 or affecting the efficiency of the core rod 500 being inserted into the cell 400 due to the offset of the core rod 500.

[0128] Specifically, when the core rod 500 enters the second guide channel 10221, the core rod can abut against multiple plug sections 1022 and cause the multiple plug sections 1022 to be opened. The opened multiple plug sections 1022 can be used to fix the diaphragm of the inner ring of the battery cell 400, so as to avoid the core rod 500 interfering with the edge of the diaphragm during the insertion process and causing insertion failure.

[0129] In one embodiment, when the plug portion 1023 is in the closed state, a plurality of plug segments 1022 form a circumferentially closed plug portion 1023.

[0130] In the above embodiment, the circumferential dimension of the plug portion 1023 in the closed state is reduced, which facilitates the insertion end on the plug portion 1023 to be inserted into the central hole of the cell 400. Moreover, the multiple plug segments 1022 contact each other in the circumferential direction to form a circumferentially closed plug portion 1023, which can avoid damage to the cell 400 by the gap edge between adjacent plug segments 1022. Furthermore, in the closed state, the multiple plug segments 1022 fit tightly together to form a stable plug structure, which helps to ensure the reliability of the plug connection between the core rod 500 and the cell 400.

[0131] It is worth noting that the circumferentially closed plug portion 1023 refers to the adjacent plug segments 1022 contacting each other in the circumferential direction. In actual operation, if there are still gaps in some positions when the adjacent plug segments 1022 contact each other in the circumferential direction, it also belongs to the circumferentially closed plug portion 1023 described in the embodiments of this application.

[0132] In another embodiment, the edge of the plug segment 1022 can be chamfered, which can prevent the edge of the plug segment 1022 from damaging the cell 400 even when a gap is formed between adjacent plug segments 1022.

[0133] In the above embodiment, the guide member 102 has an insertion end facing the battery cell 400 and an inlet end facing away from the battery cell 400. When the plug-in part 1023 is in the closed state, the insertion end can be closed so that the insertion end on the plug-in part 1023 can be inserted into the center hole of the battery cell 400; or the insertion end can have a small opening so that multiple plug-in segments 1022 can be spread open by the core rod 500.

[0134] In one embodiment, see Figure 11 and Figure 12 The outer surface of the plug segment 1022 forms a first arc surface 10222;

[0135] In the direction in which the battery cell is inserted into the connector 1023, the radius of the first arc surface gradually decreases; or,

[0136] In the direction in which the battery cell is inserted into the connector 1023, the radius of the first arc surface 10222 is equal.

[0137] In the above embodiments, the outer surfaces of the plurality of plug segments 1022 can form a conical surface, or the outer surfaces of the plurality of plug segments 1022 can form a circumferential surface.

[0138] In the above embodiments, the center hole of the battery cell 400 is generally a circular hole. The setting of the first arc surface 10222 makes the insertion segment 1022 smoother when it is inserted into the center hole of the battery cell 400, reduces the frictional resistance between the insertion segment 1022 and the battery cell 400, and avoids damage to the battery cell 400.

[0139] See Figure 12 The structure of the first arc surface 10222 makes the force between the plug section 1022 and the inner wall of the center hole of the battery cell 400 more uniform, avoiding deformation of the battery cell caused by uneven force on the inner wall of the center hole of the battery cell 400.

[0140] In the above embodiment, as the radius of the first arc surface 10222 gradually decreases, the plug segment 1022 can form a tapered plug segment 1022. When the plug part 1023 needs to be inserted into the battery cell, multiple plug segments 1022 form a tapered plug part 1023. The first arc surface 10222 with a gradually decreasing radius can more effectively guide the plug part 1023 into the center hole of the battery cell, so that the plug part 1023 can be positioned to the center hole of the battery cell more quickly and accurately.

[0141] In the above embodiments, when the radii of the first arc surface 10222 are equal, the multiple plug segments 1022 can form a cylindrical plug portion 1023 when they are in circumferential contact, and can also be plugged into the circular central hole in the battery cell when the plug portion 1023 moves.

[0142] In some embodiments, see Figure 11 and Figure 12 The inner surface of the plug section 1022 forms a second arc surface 10223;

[0143] In the direction in which the battery cell is inserted into the connector 1023, the radius of the second arc surface gradually decreases; or,

[0144] In the direction in which the battery cell is inserted into the connector 1023, the radius of the second arc surface 10223 is equal.

[0145] In the above embodiments, the inner surfaces of the multiple insertion segments 1022 can form a conical surface, or the inner surfaces of the multiple insertion segments 1022 can form a circumferential surface. Since the mandrel 500 is generally a cylindrical rod, the provision of the second arc surface 10223 can reduce the frictional resistance of the mandrel 500 inserting into the insertion part 1023, making the process of the mandrel 500 entering the insertion part 1023 faster and more efficient.

[0146] In the above embodiment, as the radius of the second arc surface 10223 gradually decreases, the plug segment 1022 forms a plug segment 1022 with an internal taper, which facilitates the insertion of the core rod 500 into the second guide channel 10221 formed by multiple plug segments 1022, and enables the multiple plug segments 1022 to be spread open, thereby improving the efficiency of the core rod 500 entering the center hole of the cell 400 through the guide member 102.

[0147] In the above embodiment, when the radii of the second arc surface 10223 are equal, the multiple plug segments 1022 can form a cylindrical second guide channel 10221 when they are in circumferential contact, and can also be plugged into the cylindrical second guide channel 10221 when the mandrel 500 moves.

[0148] In some embodiments, the guide structure 100 further includes an elastic element 104, which is disposed on the guide seat 101 and abuts against the connecting section 1021.

[0149] In the above embodiments, the elastic element 104 can be a spring, elastic rubber, or a spring plunger.

[0150] In the initial state, the elastic member 104 pushes the connecting section 1021 away from the guide seat 101, so that the multiple plug sections 1022 come closer to each other, making it easier for the multiple plug sections 1022 to be inserted into the center hole of the battery cell 400.

[0151] The mandrel 500 is inserted into the guide 102 through the opening at the inlet end to push the multiple plug segments 1022 to be opened, and the elastic element 104 is further compressed. The elastic element 104 can provide a buffering effect for the plug segments 1022 to be opened, ensuring the stability and reliability of the rotation of the guide 102.

[0152] In some embodiments, see Figure 7 and Figure 8 The mandrel insertion mechanism also includes a pin drive structure 200, which includes a pin base 201, a pin drive component 202, and a connector 203. The pin base 201 is fixedly installed, the pin drive component 202 is installed on the pin base 201, and the connector 203 is connected between the pin drive component 202 and the guide structure 100.

[0153] In the above embodiments, the pin base 201 serves as a fixed part, providing a stable foundation for the entire pin drive structure 200. The pin drive component 202, consisting of a motor, hydraulic cylinder, or pneumatic cylinder, is mounted on the pin base 201, ensuring the stability and reliability of the pin drive component 202 during operation. The connector 203 acts as a bridge connecting the pin drive component 202 and the guide structure 100, transmitting the driving force of the pin drive component 202 to the guide structure 100, further enhancing the structural stability of the entire pin drive structure 200.

[0154] In one embodiment, the pin drive 202 is a cylinder, and the cylinder is connected to the connector 203 which is fixedly assembled with the guide structure 100.

[0155] In the initial state, the piston rod of the cylinder is in the retracted position. After the battery cell 400 is in place, the cylinder is activated, the piston rod of the cylinder extends and drives the insertion section 1022 in the guide member 102 to be inserted into the center hole of the battery cell 400. Then, the push pin drive structure 300 pushes the core rod 500 from the guide member 102 into the center hole of the battery cell 400.

[0156] This application also provides a battery cell manufacturing apparatus, which includes the aforementioned core insertion mechanism.

[0157] In the above-described embodiments, when the transfer structure 2 switches from the first position to the second position, the core rod insertion mechanism of the cell manufacturing apparatus drives the core rod 500 in the transfer groove 21 to move, and makes the transfer groove 21 opposite to the guide groove 31, so that the core rod 500 in the transfer groove 21 can be transferred to the guide groove 31, ensuring the continuity of core rod 500 transportation and improving the production efficiency of the cell.

[0158] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A mandrel insertion mechanism, characterized in that, include: The feeding structure (1) has a feeding channel (11) for conveying a mandrel (500) along a first direction. The transfer structure (2) and the mounting base (3) are provided with a transfer groove (21) on the transfer structure (2) and a guide groove (31) on the mounting base (3). The transfer structure (2) is movable along a second direction to have a first position and a second position. When the transfer structure (2) is in the first position, the transfer trough (21) is opposite to the material conveying channel (11). When the transfer structure (2) is in the second position, the transfer trough (21) is opposite to the guide trough (31). The second direction intersects the first direction.

2. The mandrel insertion mechanism according to claim 1, characterized in that, The guide groove (31) is opposite to the insertion path of the core rod (500) into the cell (400); The transfer trough (21) can receive the mandrel conveyed by the material conveying channel (11) and transfer the mandrel to the guide trough (31).

3. The mandrel insertion mechanism according to claim 1, characterized in that, The feeding structure (1) is connected to the mounting base (3) at one end near the transfer structure (2), and the transfer structure (2) is slidably connected to the mounting base (3) in the second direction.

4. The mandrel insertion mechanism according to claim 1, characterized in that, The feeding structure (1) includes a conveying trough (12) and a conveying plate (13). A first channel (121) is formed on the conveying trough (12), and a second channel (131) is formed on the conveying plate (13). The first channel (121) and the second channel (131) are connected along the first direction to form the material conveying channel (11).

5. The mandrel insertion mechanism according to claim 4, characterized in that, The feeding structure (1) includes an air blowing component (15), which is disposed in the conveying groove (12) and has an air blowing port facing the first channel.

6. The mandrel insertion mechanism according to claim 4, characterized in that, The feeding structure (1) includes a buffer unit (16), the buffer unit (16) includes a buffer rod (161) and a buffer drive (162), the conveyor plate (13) is provided with a first through hole that connects to the second channel (131), the buffer rod (161) is movably inserted through the first through hole, and the buffer drive (162) is connected to the buffer rod (161).

7. The mandrel insertion mechanism according to claim 6, characterized in that, When the transfer slot (21) is opposite to the second channel (131), the buffer rod (161) exits the second channel (131). When the transfer slot (21) is misaligned with the second channel (131), the buffer rod (161) can extend into the second channel (131) to press against the core rod.

8. The mandrel insertion mechanism according to claim 1, characterized in that, It also includes a position adjustment structure (4), which includes at least one of a first adjustment member (41) and a second adjustment member (42); In the case where the position adjustment structure (4) includes a first adjustment member (41) and a second adjustment member (42), the first adjustment member (41) and the second adjustment member (42) are respectively disposed on both sides of the transfer structure (2) in the second direction.

9. The mandrel insertion mechanism according to claim 8, characterized in that, The position adjustment structure (4) includes a first adjustment member (41) and a second adjustment member (42). The first adjustment member (41) includes a first fixing plate and a first adjustment screw, and the second adjustment member (42) includes a second fixing plate and a second adjustment screw. The transfer structure (2) is provided with a limiting block (22). The first fixing plate and the second fixing plate are respectively spaced apart on both sides of the limiting block (22) in the second direction. The first adjusting screw is screwed to the first fixing plate and is used to abut against the limiting block (22). The second adjusting screw is screwed to the second fixing plate and is used to abut against the limiting block (22).

10. The mandrel insertion mechanism according to claim 1, characterized in that, It also includes a pressing structure (5), which includes a guide rod (51) and a pressing part (52). The guide rod (51) is connected to the transfer structure (2). The transfer structure (2) is provided with a second through hole that communicates with the transfer groove (21). The pressing part (52) is movably sleeved on the guide rod (51) and is at least partially located in the second through hole.

11. The mandrel insertion mechanism according to claim 10, characterized in that, The pressing structure (5) includes an elastic part (53), and the pressing part (52) includes a pressure plate (521) and a pressure rod (522). The pressure plate (521) is sleeved on the guide rod (51), the pressure rod (522) is connected to the pressure plate (521) and passes through the second through hole, and the elastic part (53) is sleeved on the pressure rod (522) and located between the pressure plate (521) and the transfer structure (2).

12. The mandrel insertion mechanism according to any one of claims 1-11, characterized in that, It also includes a guide structure (100) and a pusher drive structure (300). The pusher drive structure (300) includes a pusher drive member (301) and a pusher (302). The pusher (302) is opposite to the guide groove (31). The pusher drive member (301) can drive the pusher (302) to move so that the mandrel in the guide groove (31) is pushed into the guide structure (100).

13. The mandrel insertion mechanism according to claim 12, characterized in that, The guide structure (100) includes a guide seat (101); Multiple guide members (102) are provided. Each guide member (102) includes a connecting section (1021) and a plug-in section (1022). The guide member (102) is rotatably connected to the guide seat (101) through the connecting section (1021). The multiple plug-in sections (1022) form a plug-in part (1023) and have a closed state and an open state.

14. The mandrel insertion mechanism according to claim 13, characterized in that, A first guide channel (1013) is formed in the guide seat (101), and a second guide channel (10221) is formed in the plug part (1023). The first guide channel (1013) and the second guide channel (10221) are connected to each other.

15. The mandrel insertion mechanism according to claim 13, characterized in that, When the plug portion (1023) is in the closed state, the plurality of plug segments (1022) form a circumferentially closed plug portion.

16. The mandrel insertion mechanism according to claim 13, characterized in that, The outer surface of the plug segment (1022) forms a first arc surface (10222); In the direction in which the battery cell is inserted into the connector (1023), the radius of the first arc surface gradually decreases; or, In the direction in which the battery cell is inserted into the plug (1023), the radii of the first arc surface are equal.

17. The mandrel insertion mechanism according to claim 13, characterized in that, The inner surface of the plug segment (1022) forms a second arc surface (10223); In the direction in which the battery cell is inserted into the connector (1023), the radius of the second arc surface gradually decreases; or, In the direction in which the battery cell is inserted into the plug (1023), the radii of the second arc surface are equal.

18. The mandrel insertion mechanism according to claim 12, characterized in that, It also includes a pin drive structure (200), which includes a pin base (201), a pin drive component (202), and a connector (203). The pin base (201) is fixedly disposed, the pin drive component (202) is disposed on the pin base (201), and the connector (203) is connected between the pin drive component (202) and the guide structure (100).

19. A battery cell manufacturing apparatus, characterized in that, Includes the mandrel insertion mechanism as described in any one of claims 1-18.

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