Core rod inserting device and battery cell manufacturing equipment

Abstract

The utility model discloses a core rod insertion device and battery cell manufacturing equipment. The core rod insertion device comprises a guide assembly, a material supply assembly and a material pushing assembly, wherein the guiding assembly comprises a guiding piece, a through hole penetrating through the guiding piece is formed in the guiding piece, the length direction of the through hole extends in the linear direction, the through hole comprises a guiding hole section, the feeding assembly is used for storing core rods, the pushing assembly comprises a push rod, and the push rod and the through hole extend in the same direction and are movably arranged in the linear direction; the push rod is used for pushing the core rod in the feeding assembly into the through hole. The core rod can be prevented from damaging the diaphragm on the inner wall of the center hole due to factors such as insertion direction deviation, so that the quality of the battery cell can be ensured, and potential safety hazards can be avoided.

Description

Technical Field

[0001] This application relates to the field of battery cell production equipment technology, and in particular to a core rod insertion device and battery cell manufacturing equipment. Background Technology

[0002] In related technologies, after the battery cell is wound, a central hole is usually left on it. Based on the requirements of maintaining the size of the central hole, a core rod is usually inserted into the central hole.

[0003] However, since the gap between the core rod and the inner wall of the center hole is usually small, and since the two ends of the core rod are not chamfered and are very sharp, the core rod is prone to damaging the diaphragm inside the center hole during the process of inserting the core rod into the center hole, resulting in poor cell quality and safety hazards. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the related technologies, this application provides a mandrel insertion device and a cell manufacturing equipment to solve the problem that the mandrel is prone to damaging the diaphragm inside the central hole in the related technologies.

[0005] To address the aforementioned technical problems, in a first aspect, this application provides a mandrel insertion device, which includes:

[0006] A guide assembly, the guide assembly including a guide member, the guide member having a through hole extending through the guide member, the through hole extending along a straight line in its length direction, the through hole including a guide hole segment;

[0007] A feeding assembly for storing mandrels; and,

[0008] A feeding assembly includes a push rod that extends in the same direction as the through hole and is movable along the straight line. The push rod is used to push the mandrel in the feeding assembly into the through hole.

[0009] In one possible implementation of the first aspect, the guide includes:

[0010] Main body paragraph;

[0011] An insertion segment is connected to one end of the main body segment and is used to insert into the center hole of the battery cell.

[0012] In a possible implementation of the first aspect, the guide hole segment is disposed in the main body segment, and the through hole further includes an insertion hole segment, which is disposed in the insertion segment and communicates with the guide hole segment;

[0013] The insertion segment includes multiple flexible elements, which together form the insertion hole segment.

[0014] In one possible implementation of the first aspect, a plurality of the flexible elements are used to be outwardly expanded by the mandrel;

[0015] In the straight line direction, the inner diameter of the insertion hole gradually decreases along the direction from the main body section to the insertion section.

[0016] In one possible implementation of the first aspect, the flexible member has an outer surface disposed away from the insertion hole segment, and an abutment protrusion is provided on the outer surface.

[0017] In one possible implementation of the first aspect, the insertion segment is a tapered segment, and in the straight direction, the outer diameter of the insertion segment gradually decreases along the direction from the main body segment to the insertion segment.

[0018] In one possible implementation of the first aspect, the through hole further includes a guide hole section, which communicates with the guide hole section;

[0019] The guide hole segment extends through the guide member, and the opening of the guide hole segment forms an inlet on the guide member, the inlet for the mandrel to be inserted into the through hole; in the straight direction, the diameter of the guide hole segment gradually decreases from the inlet towards the inside of the through hole.

[0020] In a possible implementation of the first aspect, the guiding component further includes:

[0021] A guide drive, which is used to drive the guide to move along the straight line direction.

[0022] In a possible implementation of the first aspect, the feeding assembly includes:

[0023] A mandrel guide is provided with a guide channel, the length direction of which extends along the straight line. The guide channel is used to accommodate the mandrel, and the push rod is used to push the mandrel in the guide channel into the through hole.

[0024] In one possible implementation of the first aspect, the mandrel guide is provided with a guide groove, the inner wall of which forms the guide channel.

[0025] In a possible implementation of the first aspect, the feeding assembly further includes:

[0026] A mandrel feeder is used to store the mandrel and to supply the mandrel into the guide channel.

[0027] Secondly, this application also provides a cell manufacturing apparatus, which includes the core insertion device described in any of the first aspects;

[0028] A cell delivery device for delivering the cell to a position where it docks with the guide assembly in the mandrel insertion device.

[0029] Compared with related technologies, this application has at least the following beneficial effects:

[0030] In this application, when using the core insertion device to perform the core insertion operation, the through hole in the guide member of the guide assembly can extend in the same direction and be coaxially arranged with the center hole of the battery cell. The push rod in the push assembly can push the core rod in the feeding assembly to move along the length direction of the through hole, so as to push the core rod into the through hole of the guide member, and then the core rod can be inserted into the center hole after passing through the guide hole section of the through hole.

[0031] Because the through-hole extends in the same direction as the center hole of the battery cell, the guide section of the through-hole guides the movement of the core rod, allowing it to continuously move along the length of the center hole. This ensures that the core rod continues to move along the length of the center hole during insertion. This helps prevent damage to the diaphragm on the inner wall of the center hole due to insertion direction deviations, thus ensuring battery cell quality and avoiding safety hazards. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of the battery cell manufacturing equipment provided in the embodiments of this application;

[0034] Figure 2 A schematic diagram of a battery cell provided in an embodiment of this application;

[0035] Figure 3 This is a schematic diagram of the structure of the guide component provided in an embodiment of this application;

[0036] Figure 4 A cross-sectional view of the guide component provided in an embodiment of this application;

[0037] Figure 5 for Figure 3 Enlarged view of section A;

[0038] Figure 6 This is a partial structural schematic diagram of the mandrel insertion device provided in an embodiment of this application;

[0039] Figure 7 for Figure 6 Enlarged view of section B.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1-Guide assembly; 11-Guide component; 111-Through hole; 1111-Guide hole section; 1112-Insertion hole section; 1113-Guide hole section; 1114-Inlet; 112-Main body section; 113-Insertion section; 1131-Flexible component; 114-Abutting protrusion; 12-Guide drive component; 13-Mounting base;

[0042] 2-Feeding assembly; 21-Mandrel guide; 211-Guide channel; 22-Mandrel feeder;

[0043] 3-Pushing assembly; 31-Push rod; 32-Pushing drive component;

[0044] 4-Cell; 41-Center hole; 42-Separator;

[0045] 5-Mandrel;

[0046] 100 - Mandrel insertion device;

[0047] 200-Cell delivery device. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0049] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0050] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0051] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0052] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0053] As described in the background section of this application, in related technologies, after the battery cell is wound, a central hole is usually left on it. Based on the requirements such as maintaining the size of the central hole, it is generally necessary to insert a core rod into the central hole.

[0054] However, since the gap between the core rod and the inner wall of the center hole is usually small, and since the two ends of the core rod are not chamfered and are very sharp, the core rod is prone to damaging the diaphragm inside the center hole during the process of inserting the core rod into the center hole, resulting in poor cell quality and safety hazards.

[0055] Example 1

[0056] In view of the above-mentioned problems, this application provides a mandrel insertion device to solve the problem that the mandrel easily damages the diaphragm inside the central hole in the related art.

[0057] The technical solution of this application will be further described below with reference to specific embodiments and accompanying drawings:

[0058] like Figure 1 As shown, the mandrel insertion device 100 includes a guiding assembly 1, a feeding assembly 2, and a pushing assembly 3. Wherein, as... Figure 1 and Figure 3 As shown, the guide assembly 1 includes a guide member 11, such as Figure 4 As shown, a through hole 111 is provided inside the guide member 11, and the length direction of the through hole 111 is along a straight line (e.g., Figure 4 The through hole 111 extends in the X direction and includes a guide hole segment 1111.

[0059] The feeding assembly 2 is used to store the mandrel 5, and the pushing assembly 3 includes a push rod 31. The push rod 31 extends in the same direction as the through hole 111, and the push rod 31 is movable along the aforementioned straight direction. The push rod 31 is used to push the mandrel 5 in the feeding assembly 3 into the through hole 111.

[0060] In this application, when the core insertion device 100 is used for core insertion, the through hole 111 in the guide member 11 of the guide assembly 1 can be aligned with the center hole 41 of the battery cell 4. Figure 2 As shown, the push rod 31 in the pusher assembly 3 can push the core rod 5 in the feed assembly 2 to move along the length direction of the through hole 111, so as to push the core rod 5 into the through hole 111 of the guide member 11, and then the core rod 5 can be inserted into the center hole 41 after passing through the guide hole section 1111 of the through hole 111.

[0061] Since the through hole 111 extends in the same direction as the central hole 41, the guide section 1111 of the through hole 111 guides the movement of the mandrel 5, allowing the mandrel 5 to continuously move along the length direction of the central hole 41. Therefore, during the insertion of the mandrel 5 into the central hole 41, the mandrel 5 can also continuously move along the length direction of the central hole 41. This helps to prevent the mandrel 5 from damaging the diaphragm 42 on the inner wall of the central hole 41 due to factors such as insertion direction deviation. Figure 2 (As shown), this helps to ensure the quality of cell 4 and avoid safety hazards.

[0062] Furthermore, such as Figure 4 and Figure 5 As shown, the guide 11 includes a main body section 112 and an insertion section 113. The insertion section 113 is connected to one end of the main body section 112 and is used to insert the battery cell 4 into the center hole 41.

[0063] With this configuration, when the core insertion device 100 is used for core insertion, the insertion section 113 can be inserted into the center hole 41. After the insertion section 113 is inserted into the center hole 41, it can increase the area of ​​the guide member 11 and the battery cell 4. This helps to keep the through hole 111 and the center hole 41 extending in the same direction more stably. Furthermore, through the guidance of the guide hole section 1111, it helps to make the core 5 move more stably along the length direction of the center hole 41, which helps to further avoid damaging the diaphragm 42 on the inner wall of the center hole 41.

[0064] In other embodiments, when using the core insertion device 100 to perform the core insertion operation, the guide 11 is disposed outside the center hole 41, and along the length direction of the center hole 41, the guide 11 is disposed on one side of the cell 4. This arrangement simplifies the core insertion operation to some extent, making it more convenient, as the guide 11 does not need to be inserted into the center hole 41.

[0065] like Figure 4 and Figure 5 As shown, the guide hole section 1111 is disposed on the main body section 112, and the through hole 111 also includes an insertion hole section 1112. The insertion hole section 1112 is disposed on the insertion section 113 and communicates with the guide hole section 1111.

[0066] The insertion segment 113 includes multiple flexible elements 1131, which together form the insertion hole segment 1112.

[0067] This design allows for several advantages. First, the shape of the central hole 41 may be irregular. When the insertion segment 113 enters the central hole 41, the flexible member 1131 can deform according to the actual shape of the central hole 41, closely conforming to the inner wall contour of the central hole 41. This ensures good contact and fit between the insertion segment 113 and the central hole 41, thereby providing an accurate insertion path for the mandrel 5. Second, multiple flexible members 1131 allow the insertion segment 113 to adapt to central holes 41 of different sizes. This ensures that the insertion segment 1112 can guide the mandrel 5 in central holes 41 of various sizes, improving the versatility and applicability of the guide member 11.

[0068] On the other hand, because the flexible component 1131 is soft, it is less likely to scratch the diaphragm 42 on the inner wall of the central hole 41 during contact with the inner wall compared to a rigid structure. Even with slight shaking or positional shifts during insertion, the flexible component 1131 can contact the inner wall gently, minimizing damage to the internal structure of the central hole 41 and helping to maintain the quality and performance of the battery cell 4. Furthermore, during insertion, the flexible component 1131 can also act as a buffer if subjected to external impact or uneven thrust. It can absorb and disperse these external forces, preventing them from directly acting on the diaphragm 42 on the inner wall of the central hole 41, reducing the risk of damage to the diaphragm 42 due to external impact, and improving the safety of the insertion process.

[0069] In other embodiments, the guide member 11 is a rigid component as a whole. This configuration eliminates the need for flexible structures on the guide member 11, thus simplifying its structural composition and facilitating its manufacturing.

[0070] Regarding the number of flexible components 1131, in this embodiment of the application, there may be two, three, four or more flexible components 1131. The number of flexible components 1131 is set flexibly. Specifically, it can be set according to actual needs. This embodiment of the application does not make a specific limitation on this.

[0071] Furthermore, multiple flexible elements 1131 are used to be outwardly expanded by the mandrel 5, such as... Figure 4 As shown, in the aforementioned straight direction, the inner diameter of the insertion hole segment 1112 is along the direction from the main body segment 112 to the insertion segment 113 (e.g., Figure 4 The X-direction (in the middle) gradually decreases.

[0072] With this configuration, firstly, when the flexible component 1131 is expanded by the mandrel 5, it will abut against the inner wall of the central hole 41. Thus, during the mandrel 5's entry into the central hole 41, the contact between the flexible component 1131 and the inner wall of the central hole 41 provides precise positioning and guidance from multiple directions, ensuring that the mandrel 5 enters the central hole 41 along the correct path. This minimizes unnecessary collisions and scrapes between the mandrel 5 and the diaphragm 42 on the inner wall of the central hole 41, protecting the diaphragm 42 from damage. Secondly, the contact between the flexible component 1131 and the inner wall of the central hole 41 also helps to fix the diaphragm 42 to a certain extent. This prevents the diaphragm 42 from being pushed and stacked by the mandrel 5, even if the mandrel 5 comes into contact with the diaphragm 42.

[0073] Secondly, as the mandrel 5 moves within the insertion hole section 1112, it gradually expands outwards the multiple flexible components 1131. This facilitates the outward expansion of the flexible components 1131 by the mandrel 5, while also ensuring a slower outward expansion speed. This not only avoids the problem of the flexible components 1131 being easily damaged due to rapid outward expansion, but also allows the flexible components 1131 to gradually contact the inner wall of the central hole 41, further preventing damage to the diaphragm 42 due to rapid contact.

[0074] Finally, since the multiple flexible members 1131 that are stretched outward will also hold the mandrel 5 together, the mandrel 5 will not deviate from the correct path due to unexpected external forces or its own movement before it completely passes through the guide member 11. This ensures that the mandrel 5 is firmly controlled on the correct path, thus improving the stability of the mandrel 5's movement.

[0075] In other embodiments, the insertion hole section 1112 can be a hole section of equal diameter, and each flexible member 1131 is provided with a protrusion located within the insertion hole section 1112. During the movement of the mandrel 5 within the insertion hole section 1112, when the outer peripheral wall of the mandrel 5 abuts against the protrusion, the mandrel 5 can push each flexible member 1131 outward.

[0076] With this configuration, since the insertion hole section 1112 is a hole section of equal diameter, the structure of the insertion hole section 1112 can be simplified, which is conducive to the processing of the insertion hole section 1112.

[0077] Furthermore, such as Figure 4 and Figure 5 As shown, the flexible member 1131 has an outer surface that is opposite to the insertion hole section 1112, and an abutment protrusion 114 is provided on the outer surface.

[0078] This arrangement, on the one hand, facilitates the contact between the abutting protrusion 114 and the inner wall of the central hole 41, making it easier for the flexible component 1131 to contact the inner wall of the central hole 41, and on the other hand, it avoids excessively pushing each flexible component 1131 outward, thus helping to prevent damage to each flexible component 1131.

[0079] On the other hand, the inner wall of the central hole 41 may not be completely smooth and flat, and there may be some minor unevenness or irregularities caused by processing errors. The raised abutment protrusion 114 can better fit these irregular inner wall surfaces, ensuring that the guide 11 and the central hole 41 can fit tightly together, still providing a reliable guiding path for the insertion of the mandrel 5, while also protecting the diaphragm 42 inside the central hole 41 from damage to the greatest extent.

[0080] In other embodiments, the outer surface of the flexible member 1131 can abut against the inner wall of the central hole 41. This arrangement eliminates the need for the abutment protrusion 114, thus simplifying the structure of the flexible member 1131 and facilitating its processing.

[0081] Furthermore, such as Figure 5 As shown, the insertion segment 113 is a tapered segment. In the aforementioned straight direction, the outer diameter of the insertion segment 113 extends from the main body segment 112 to the insertion segment 113 (e.g., Figure 5 The X-direction (in the middle) gradually decreases.

[0082] With this design, firstly, the center hole 41 of the battery cell 4 may have a certain deviation in its entry position or angle during processing. The tapered insertion section 113, due to its gradually tapering shape, can better accommodate this deviation during insertion. Even if the entry of the center hole 41 and the insertion section 113 are not perfectly aligned, the tapered structure can rely on its gradually decreasing outer diameter to guide the insertion section 113 into the center hole 41 through a certain degree of self-adjustment. This improves the insertion tolerance and reduces the possibility of failure to insert smoothly or damage to the center hole 41 due to entry deviation.

[0083] Secondly, when the insertion section 113 is inserted into the center hole 41, compared with the straight cylindrical insertion section of the same diameter, the tapered insertion section 113 has a smaller initial contact area with the inner wall of the center hole 41, and the friction generated during contact is relatively smaller. This allows it to enter the center hole 41 more smoothly, effectively reducing the resistance during the insertion process and making the entire insertion operation smoother and more convenient.

[0084] Finally, during the insertion of the tapered insertion section 113 into the center hole 41, it makes gradual contact with the inner wall of the center hole 41. Compared with sudden contact with a large outer diameter, this contact method greatly reduces the risk of scratching the inner wall of the center hole 41, and can better protect the diaphragm 42 and other structures inside the center hole 41, which helps to maintain the good quality and performance of the battery cell 4.

[0085] In other embodiments, the insertion segment 113 can also be a segment of equal diameter. This configuration simplifies the structure of the insertion segment 113 and facilitates its processing.

[0086] For through hole 111, further, such as Figure 4 As shown, the through hole 111 also includes a guide hole section 1113, which communicates with the guide hole section 1111. The guide hole section 1113 passes through the guide member 11, and the opening of the guide hole section 1113 forms an inlet 1114 on the guide member 11. The inlet 1114 supplies the core rod 5 for insertion into the through hole 111. In the aforementioned linear direction (e.g.) Figure 4 In the X direction, the diameter of the guide hole section 1113 gradually decreases from the inlet 1114 toward the inside of the through hole 111.

[0087] This design serves several purposes. First, the opening of the guide hole segment 1113 forms an inlet 1114 on the guide member 11, providing a clear insertion entrance for the mandrel 5. Furthermore, its gradually decreasing diameter acts like a funnel. When the mandrel 5 is initially inserted, the relatively large inlet 1114 reduces the difficulty of insertion, allowing the mandrel 5 to accurately align with the inlet 1114 and enter the through hole 111. Even with some positional deviation, the larger inlet 1114 provides a certain margin of error, making it easier for the mandrel 5 to find the correct insertion path.

[0088] On the other hand, the tapered aperture design of the guide hole section 1113 makes the insertion process of the mandrel 5 a gradual and smooth one. Compared with a straight cylindrical hole section with a constant aperture, this gradually narrowing structure can prevent the mandrel 5 from violently colliding with the hole wall due to sudden entry into a smaller space, reducing the possibility of damage to the surface of the mandrel 5, extending the service life of the mandrel 5, and also preventing damage to the diaphragm 42 and other structures on its inner wall due to damage to the mandrel 5 during subsequent insertion into the central hole 41.

[0089] In other embodiments, the opening of the guide hole segment 1111 can form an inlet 1114 on the guide member 11, that is, the guide hole segment 1111 penetrates the guide member 11. With this configuration, since the guide hole segment 1113 is not provided, the structure of the through hole 111 can be simplified to a certain extent, which is beneficial to the processing of the through hole 111.

[0090] For guide component 1, further, such as Figure 1 and Figure 3 As shown, the guide assembly 1 also includes a guide drive 12, which is used to drive the guide 11 to move along the aforementioned straight direction.

[0091] With this setup, the guide drive 12 can automatically drive the guide 11 into the center hole 41, thus transforming a step that originally required manual operation into an automated process. This greatly improves production efficiency, reduces errors and inconsistencies that may arise from manual operation, and ensures that the insertion operation of each battery cell 4 is performed according to a uniform standard, which helps to improve the stability of the entire production process and the consistency of product quality.

[0092] Secondly, the guide drive 12 can precisely control the distance the guide 11 moves according to preset parameters, which means that the depth of the guide 11 inserted into the center hole 41 can be precisely controlled, which helps to avoid affecting the quality of the battery cell 4 or its subsequent performance due to improper insertion depth.

[0093] Finally, the guide drive 12 provides a stable and uniform driving force to the guide 11, enabling the guide 11 to be inserted into the center hole 41 smoothly and at a constant speed. Compared to the uneven force and unstable speed that may occur during manual insertion, this smooth insertion method can effectively avoid damage to the inner wall of the center hole 41 and the internal diaphragm 42 caused by sudden impact or excessive insertion speed, better protect the internal structure of the battery cell 4, maintain the good quality of the battery cell 4, and reduce safety hazards caused by the insertion operation.

[0094] In other embodiments, the guide 11 can also be manually driven into the central hole 41; or, during the delivery of the battery cell 4, the moving battery cell 4 can be fitted onto the guide 11 through the central hole 41. In this case, the guide 11 can be positioned within the central hole 41 without driving it to move. Therefore, the method of positioning the guide 11 within the central hole 41 is quite flexible, and can be selected according to actual needs.

[0095] Furthermore, the guide drive component 12 is a cylinder.

[0096] With this configuration, the cylinder can output a relatively stable linear thrust, ensuring that the guide 11 moves at a uniform speed and with a stable force when it is inserted into the center hole 41. This helps to avoid the guide 11 from getting stuck or shaking during insertion due to sudden changes in driving force, ensuring that the guide 11 can enter the center hole 41 more smoothly and accurately.

[0097] In a preferred embodiment, such as Figure 1 and Figure 3As shown, the guide assembly 1 also includes a mounting base 13, a guide member 11 is disposed on the mounting base 13, and a guide drive member 12 is disposed on the feeding assembly 2. The output end of the guide drive member 12 is connected to the mounting base 13, so that the guide drive member 12 can drive the guide member 11 to move by driving the mounting base 13 to move.

[0098] With this configuration, on the one hand, the mounting base 13 can provide a stable mounting foundation for the guide component 11, so that the guide component 11 can be firmly fixed in the corresponding position.

[0099] On the other hand, by setting the guide drive 12 on the feeding assembly 2 and connecting its output end to the mounting base 13, the internal space of the mandrel insertion device 100 can be utilized more rationally, making the structure of the entire device more compact and orderly.

[0100] For the feeding component 2, further, such as Figure 1 and Figure 6 As shown, the feeding assembly 2 includes a mandrel guide 21, such as... Figure 7 As shown, the mandrel guide 21 is provided with a guide channel 211. The length direction of the guide channel 211 extends along the aforementioned straight direction. The guide channel 211 is used to accommodate the mandrel 5. The push rod 31 is used to push the mandrel 5 in the guide channel 211 into the through hole 111.

[0101] With this configuration, the guide channel 211 on the mandrel guide 21 extends along the aforementioned straight line, providing a clear and precise movement path for the mandrel 5. When the push rod 31 pushes, the mandrel 5 can orderly enter the through hole 111 along the same straight line, avoiding directional deviation or random wobbling during the pushing process. This ensures that the mandrel 5 can smoothly reach the guide hole section 1111 with the correct posture and path, thereby guaranteeing accurate subsequent insertion into the center hole 41 and improving the accuracy and success rate of the insertion operation.

[0102] Furthermore, such as Figure 7 As shown, the mandrel guide 21 is provided with a guide groove, and the inner wall of the guide groove forms a guide channel 211.

[0103] With this design, on the one hand, it is relatively easy to manufacture the guide groove by conventional machining methods (such as milling, planing, etc.) when manufacturing the mandrel guide 21. Compared with some complex irregular channel structures, its processing cost is lower and its efficiency is higher.

[0104] On the other hand, it also facilitates the conveying of the core rod 5 into the guide channel 211 through the slot of the guide groove.

[0105] In other embodiments, the mandrel guide 21 may also be provided with a guide hole, the wall of which forms a guide channel 211. In this case, the mandrel 5 can be conveyed into the guide channel 211 through the opening of the guide hole.

[0106] With this configuration, the guide hole provides better coverage for the mandrel 5, more precisely restricting its degree of freedom so that it can only move along the length of the guide hole. There is almost no possibility of the mandrel 5 shifting or tilting, resulting in higher guiding accuracy for the mandrel 5 and helping it to enter the guide hole section 1111 more accurately.

[0107] For the feeding component 2, further, such as Figure 1 As shown, the feeding assembly 2 also includes a mandrel feeder 22, which is used to store the mandrel 5 and to supply the mandrel (5) into the guide channel 211.

[0108] With this configuration, the mandrel 5 can be stably supplied through the mandrel feeder 22, which can avoid insufficient supply of mandrel 5, making the entire feeding process more reliable and helping to maintain the long-term stable operation of the mandrel insertion device 100.

[0109] Furthermore, the mandrel feeder 22 is a vibratory feeder. This configuration facilitates the feeding of the mandrel 5 from the mandrel feeder 22 to the mandrel guide 21 via the vibratory feeder.

[0110] For the pusher assembly 3, further, such as Figure 1 and Figure 6 As shown, the feeding assembly 3 also includes a feeding drive 32, which is driven by the push rod 31 to move along the aforementioned linear direction.

[0111] With this setup, firstly, the pusher drive 32 can precisely control the distance the push rod 31 moves according to preset parameters, thereby accurately controlling the distance the push rod 31 pushes the mandrel 5 to move, ensuring that the mandrel 5 can be accurately pushed to the appropriate position each time, and thus ensuring that the mandrel 5 can be smoothly and accurately inserted into the center hole 41.

[0112] Secondly, the pusher drive 32 can provide a stable and uniform driving force to the pusher 31, enabling the pusher 31 to push the mandrel 5 to move smoothly and at a constant speed. This avoids collisions or jamming between the mandrel 5 and components such as the guide channel 211 and the guide hole section 1111 due to excessive or unstable pushing speed, ensuring that the mandrel 5 maintains a good posture and stable movement throughout the pushing process, thus improving the accuracy and success rate of the core insertion operation.

[0113] Finally, the push rod 31 is automatically driven by the pusher drive 32 to perform the pushing operation. This transforms the original manual operation into an automated process, which greatly improves production efficiency, reduces errors and inconsistencies that may be caused by manual operation, and ensures that the insertion operation of each cell 4 can be completed efficiently according to a unified standard, which helps to improve the consistency of product quality.

[0114] In this embodiment, the pusher drive 32 can be an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder. The type of pusher drive 32 is flexible and can be selected according to actual needs. This embodiment does not impose any specific limitations on this.

[0115] In other embodiments, the push rod 31 can also be moved manually along the aforementioned linear direction. This configuration eliminates the need for a pusher drive 32, thus simplifying the structure of the pusher assembly 3, reducing manufacturing costs, and facilitating manufacturing.

[0116] Example 2

[0117] This application also provides a battery cell manufacturing apparatus, such as... Figure 1 As shown, the battery cell manufacturing equipment includes a core insertion device 100 and a battery cell conveying device 200. The core insertion device 100 has the same structure as any of the core insertion devices 100 in the above embodiments and can bring the same or similar beneficial effects. For details, please refer to the descriptions in the above embodiments; these will not be repeated here. The battery cell conveying device 200 is used to convey the battery cell 4 to a position where it docks with the guide component 1 in the core insertion device 100.

[0118] In this application, since the through hole 111 extends in the same direction as the central hole 41, the guide hole section 1111 of the through hole 111 guides the movement of the core rod 5, allowing the core rod 5 to continuously move along the length direction of the central hole 41. Therefore, during the insertion of the core rod 5 into the central hole 41, the core rod 5 can also continuously move along the length direction of the central hole 41. This helps to prevent the core rod 5 from damaging the diaphragm 42 on the inner wall of the central hole 41 due to factors such as insertion direction deviation, thereby ensuring the quality of the battery cell 4 and avoiding safety hazards. Furthermore, the battery cell delivery device 200 facilitates the docking of the battery cell 4 with the guide assembly 1.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A mandrel insertion device, characterized in that, include: A guide assembly (1) includes a guide member (11), and a through hole (111) is provided in the guide member (11). The length direction of the through hole (111) extends in a straight line, and the through hole (111) includes a guide hole segment (1111). Feeding assembly (2), said feeding assembly (2) for storing mandrel (5); and, The feeding assembly (3) includes a push rod (31) that extends in the same direction as the through hole (111) and is movably configured along the straight line. The push rod (31) is used to push the mandrel (5) in the feeding assembly (2) into the through hole (111).

2. The mandrel insertion device according to claim 1, characterized in that, The guide (11) includes: Main body (112); An insertion segment (113) is connected to one end of the main body segment (112) and is used to insert into the center hole (41) of the battery cell (4).

3. The mandrel insertion device according to claim 2, characterized in that, The guide hole section (1111) is disposed on the main body section (112), and the through hole (111) further includes an insertion hole section (1112), which is disposed on the insertion section (113) and communicates with the guide hole section (1111); The insertion segment (113) includes a plurality of flexible elements (1131), which together form the insertion hole segment (1112).

4. The mandrel insertion device according to claim 3, characterized in that, Multiple flexible elements (1131) are used to be outwardly stretched by the core rod (5); In the straight direction, the inner diameter of the insertion hole segment (1112) gradually decreases along the direction from the main body segment (112) to the insertion segment (113).

5. The mandrel insertion device according to claim 3 or 4, characterized in that, The flexible member (1131) has an outer surface that is disposed away from the insertion hole section (1112), and an abutment protrusion (114) is provided on the outer surface.

6. The mandrel insertion device according to any one of claims 2-4, characterized in that, The insertion segment (113) is a tapered segment, and in the straight direction, the outer diameter of the insertion segment (113) gradually decreases along the direction from the main body segment (112) to the insertion segment (113).

7. The mandrel insertion device according to any one of claims 1-4, characterized in that, The through hole (111) further includes a guide hole section (1113), which is connected to the guide hole section (1111); The guide hole segment (1113) passes through the guide member (11), and the opening of the guide hole segment (1113) forms an inlet (1114) on the guide member (11). The inlet (1114) allows the mandrel (5) to be inserted into the through hole (111). In the straight direction, the diameter of the guide hole segment (1113) gradually decreases from the inlet (1114) toward the inside of the through hole (111).

8. The mandrel insertion device according to any one of claims 1-4, characterized in that, The guide component (1) further includes: A guide drive (12) is used to drive the guide (11) to move along the straight line direction.

9. The mandrel insertion device according to any one of claims 1-4, characterized in that, The feeding assembly (2) includes: A mandrel guide (21) is provided with a guide channel (211), the length direction of the guide channel (211) extends along the straight line direction, the guide channel (211) is used to accommodate the mandrel (5), and the push rod (31) is used to push the mandrel (5) in the guide channel (211) into the through hole (111).

10. The mandrel insertion device according to claim 9, characterized in that, The mandrel guide (21) is provided with a guide groove, and the inner wall of the guide groove forms the guide channel (211).

11. The mandrel insertion device according to claim 9, characterized in that, The feeding assembly (2) also includes: Mandrel feeder (22) is used to store the mandrel (5) and to supply the mandrel (5) into the guide channel (211).

12. A battery cell manufacturing equipment, characterized in that, include: The mandrel insertion device (100) according to any one of claims 1-11; A cell delivery device (200) is used to deliver the cell (4) to a position where it docks with the guide assembly (1) in the mandrel insertion device (100).

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