Caching device and battery cell assembly line

Abstract

The utility model relates to the technical field of caching devices, and discloses a caching device and a battery cell assembly line. The temporary storage device comprises a support frame, which is provided with a mounting rod extending along a first direction; the caching assembly comprises multiple layers of caching platforms which are arranged at intervals in the vertical direction, each layer of caching platform is connected to the mounting rod, a first conveying belt is arranged on each layer of caching platform, and the first conveying belt extends in the second direction; the lifting platform is arranged on one side of the temporary storage assembly in the second direction, the lifting platform can ascend and descend in the vertical direction, and a second conveying belt extending in the second direction is arranged on the lifting platform; and the rotating state of the first conveying belt is the same as that of the second conveying belt. According to the temporary storage platform, the space in the vertical direction can be fully utilized, the number of cached materials is increased, it is guaranteed that the materials are stably transferred between the temporary storage platform and the lifting platform, the automation degree is high, manual material carrying is not needed, and the working efficiency and safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of buffer device technology, specifically to a buffer device and a battery cell assembly line. Background Technology

[0002] For hazardous materials such as battery cells, due to their inherent hazardous nature and the limitations of existing equipment structures, the material buffer capacity in the loading and unloading areas cannot be maximized. Based on current production capacity, the buffer can be filled quickly. To ensure the normal operation of the production line, frequent manual retrieving / loading of materials is necessary. However, manual handling is inefficient, frequent personnel movement within the factory area poses a high risk, and the low level of automation hinders lean manufacturing. Utility Model Content

[0003] In view of this, the present invention provides a buffer device and a battery cell assembly line to solve the problems of small quantity of buffer materials in the production line, low efficiency, high risk and low degree of automation of manual handling.

[0004] In a first aspect, this utility model provides a buffer device having a first direction, a second direction, and a third direction that intersect each other. The buffer device includes: a support frame having a mounting rod extending along the first direction; a buffer assembly including multiple layers of buffer platforms spaced apart along the first direction, each layer of the buffer platform being connected to the mounting rod, and each layer of the buffer platform being provided with a first conveyor belt extending along the second direction; a lifting platform disposed on one side of the buffer assembly along the second direction, the lifting platform being capable of lifting and lowering along the first direction, and the lifting platform being provided with a second conveyor belt extending along the second direction; the rotation state of the first conveyor belt is the same as the rotation state of the second conveyor belt.

[0005] Beneficial effects: By setting up a support frame and connecting the buffer platform to the mounting rod of the support frame, the support frame supports the buffer platform and the lifting platform. The mounting rod extends along the first direction, allowing for the intermittent arrangement of multiple buffer platforms along this direction. This fully utilizes the space in the first direction, increasing storage capacity and the amount of buffered material. The lifting platform, located on one side of the buffer assembly, can move up and down along the first direction. By adjusting the position of the lifting platform in this direction, it can be aligned with each layer of the buffer platform. Furthermore, by providing conveyor belts on both the buffer platform and the lifting platform, with the first conveyor belt on the buffer platform and the second conveyor belt on the lifting platform rotating synchronously, smooth material transfer between the two platforms is ensured, reducing the risk of material jamming during transport. This improves safety and overall work efficiency. The high degree of automation eliminates the need for manual material handling, further enhancing work efficiency and safety.

[0006] In one optional embodiment, the buffer device further includes a lifting drive unit connected to the lifting platform and adapted to drive the lifting platform to move up and down.

[0007] Beneficial effects: By setting up a lifting drive unit to drive the lifting platform to move up and down, the degree of automation is improved, and the lifting movement of the lifting platform can be precisely controlled, ensuring that the lifting platform can be aligned with different buffer platforms, thereby improving the flexibility and reliability of the device.

[0008] In one optional embodiment, along the third direction, an extension is provided on one side of the lifting platform, and a nut is provided on the extension; the lifting drive unit includes a motor and a lead screw, the lead screw extends along the first direction and engages with the internal thread of the nut, and the motor is adapted to drive the lead screw to rotate.

[0009] Beneficial effects: By setting a nut on one side of the lifting platform along its third direction, and setting a lifting drive unit including a lead screw and a motor that drives the lead screw to rotate, the lead screw drives the lifting platform to rise and fall through the cooperation of the lead screw and the nut. The lifting drive unit provides driving force and guidance for the lifting platform, ensuring the stability of the lifting process. Moreover, the drive method of the motor and the lead screw has a simple structure, high transmission efficiency, and high reliability. At the same time, the position of the lead screw and the nut does not affect the operation of the second conveyor belt.

[0010] In one optional embodiment, the buffer device further includes a guide rod connected to the support frame, the guide rod extending along the first direction and located on one side of the second conveyor belt along the third direction; the extension member further includes a guide portion, the guide portion having a guide hole extending along the first direction, the guide portion being slidably fitted onto the guide rod through the guide hole.

[0011] Beneficial effects: Through the cooperation between the guide rod and the guide hole on the extension part, the guide rod provides guidance and support for the lifting platform in the first direction, making the lifting process of the lifting platform more stable. It can effectively prevent the lifting platform from shaking during the lifting process, thereby improving the accuracy of the docking between the lifting platform and the buffer platform, and ensuring the safety of the materials on the lifting platform.

[0012] In one optional embodiment, the lifting platform is provided with first side plates on both sides along the third direction, the first side plates are spaced apart from the second conveyor belt, and the upper side of the first side plate is higher than the upper surface of the second conveyor belt.

[0013] Beneficial effects: By setting first side plates on both sides of the lifting platform along the third direction, the materials being transported on the second conveyor belt can be protected, thereby preventing the materials from slipping off the lifting platform during the transport process and increasing the safety of the material transfer process.

[0014] In one optional embodiment, the cache component further includes: a gate, the number of which is equal to and corresponds one-to-one with the number of cache platforms, the gate being closable and disposed on the side of the cache platform near the lifting platform; and a gate drive unit, the gate drive unit being disposed on at least one side of the cache platform along a third direction, the gate drive unit being adapted to drive the gate to open or close.

[0015] Beneficial effects: By setting a gate on the side of each buffer platform near the lifting platform, materials can be allowed to pass through when the gate is open, and blocked when the gate is closed. The gate can be opened or closed according to whether materials need to be transferred between the buffer platform and the lifting platform. On the one hand, it can ensure the smooth transfer of materials when transfer is needed, and on the other hand, it can prevent materials from falling off the buffer platform when transfer is not needed, thereby further improving safety. Furthermore, the gate opening or closing is controlled by the gate drive unit, which has a high degree of automation and is easy to operate.

[0016] In one optional embodiment, the cache platform is provided with second side plates on both sides along the third direction, and the gate is constructed with side edges on both sides along the third direction. The two side edges correspond one-to-one with the two second side plates, and the upper part of each side edge is hinged to a second side plate corresponding to that side edge.

[0017] Beneficial effects: By setting a second side plate on each side of the buffer platform along the third direction, with the upper side of the second side plate higher than the upper surface of the first conveyor belt, the second side plate protects the material on the first conveyor belt, preventing the material from falling off the side of the first conveyor belt. At the same time, by setting two sides of the gate to correspond to and hinge to a second side plate, the gate can be opened or closed by rotating around the hinge point, which is convenient for operation. Furthermore, by setting the hinge point between the gate and the second side plate to be located on the upper part of the side, the gate can be opened upwards, thus ensuring that the material can pass smoothly from below the gate when it is open. The gate provides the largest possible passage space for the material along the first direction, ensuring the smooth progress of the material transfer process.

[0018] In one alternative embodiment, the buffer platform is provided with a first connecting part that extends out of the coverage area of ​​the first conveyor belt, and the buffer platform is connected to the mounting rod through the first connecting part.

[0019] Beneficial effects: The cache platform is connected to the mounting rod through the first connecting part, which can realize the spacing of multiple cache platforms along the first direction, and enhance the stability of the overall device, further ensuring the reliability of the cache platform.

[0020] In one optional embodiment, the first connecting portion is fixedly connected to the mounting rod;

[0021] Alternatively, the first connecting portion may be adjustablely connected to the mounting rod along the first direction.

[0022] Beneficial effects: By setting the position of the first connecting part relative to the mounting rod to be adjustable along the first direction, the position of the buffer platform in the first direction can be adjusted by moving the first connecting part. This allows for adaptive adjustment of the spacing between two adjacent buffer platforms along the first direction according to the height of the material. This ensures that the spacing between two adjacent buffer platforms provides sufficient space for the material while avoiding excessive spacing between them. As a result, the moving distance of the lifting platform along the first direction is saved, time is saved, and work efficiency is improved.

[0023] Secondly, this utility model also provides a battery cell assembly line, including: the aforementioned buffer device, wherein the number of buffer devices is at least one. Since the battery cell assembly line includes a buffer device and has the same effect as the buffer device, it will not be described in detail here. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a cache device according to an embodiment of the present utility model;

[0026] Figure 2 for Figure 1 A partially enlarged schematic diagram of the bottom of the cache device shown;

[0027] Figure 3 for Figure 1 A schematic diagram of the cache device from a rear view.

[0028] Figure 4 This is a schematic diagram of the caching platform according to an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Buffer platform; 101. First conveyor belt; 102. Gate; 1021. Side; 103. Second side plate; 104. Gate drive unit; 105. First drive unit; 106. First connecting unit; 2. Lifting platform; 201. Second conveyor belt; 202. Connecting plate; 203. Guide unit; 204. Guide hole; 205. First side plate; 206. Second drive unit; 207. Nut; 210. Extension part; 3. Lifting drive unit; 301. Motor; 302. Lead screw; 4. Guide rod; 5. Support frame; 501. Mounting rod; 502. Base plate; 503. Top plate; 6. Material. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] Due to the hazardous nature of battery cells and the limitations of existing equipment structure, the number of battery cells that can be buffered in the loading and unloading area cannot be too large. Generally, only one stack (20 trays) can be buffered. Based on the current production capacity, the buffer can be filled in about 11 minutes. This requires manual handling to retrieve / load the cells, which is very frequent and inefficient.

[0033] The following is combined Figures 1 to 4 The following describes embodiments of the present invention.

[0034] According to an embodiment of the present invention, a buffer device is provided, having intersecting first direction Z, second direction X, and third direction Y. The buffer device includes a support frame 5, a buffer assembly, and a lifting platform 2. The support frame 5 has a mounting rod 501 extending along the first direction Z; the buffer assembly includes multiple layers of buffer platforms 1 arranged at intervals along the first direction Z, each layer of buffer platform 1 being connected to the mounting rod 501, and each layer of buffer platform 1 being provided with a first conveyor belt 101 extending along the second direction X; the lifting platform 2 is disposed on one side of the buffer assembly along the second direction X, and the lifting platform 2 can be raised and lowered along the first direction Z, and a second conveyor belt 201 extending along the second direction X is disposed on the lifting platform 2; the first conveyor belt 101 and the second conveyor belt 201 have the same rotation state. Wherein, the first direction Z refers to... Figure 1 The direction indicated by the middle arrow "Z" is perpendicular to the horizontal plane; the second direction X refers to... Figures 1 to 3 The direction of the "X" indicated by the middle arrow.

[0035] The buffer device of this embodiment, by setting a support frame 5 and connecting the buffer platform 1 to the mounting rod 501 of the support frame 5, achieves the support of the support frame 5 for the buffer platform 1 and the lifting platform 2. The mounting rod 501 extends along the first direction Z, which can realize the multi-layer buffer platform 1 of the buffer component to be arranged at intervals along the first direction Z. It can make full use of the space in the first direction Z, increase the storage capacity, and increase the quantity of buffered material 6. By setting the lifting platform 2 located on one side of the buffer component, it can be raised and lowered along the first direction Z. By adjusting the position of the lifting platform 2 in the first direction Z, the lifting platform 2 can correspond to each layer of buffer platform 1 respectively. At the same time, by setting both the buffer platform 1 and the lifting platform 2 to have conveyor belts, and the first conveyor belt 101 on the buffer platform 1 and the second conveyor belt 201 on the lifting platform 2 rotate synchronously, it is ensured that the material 6 can be smoothly transferred on both the buffer platform 1 and the lifting platform 2, and the material 6 can be smoothly transferred between the buffer platform 1 and the lifting platform 2. This reduces the risk of the material 6 getting stuck during the transfer process, thereby improving safety and overall work efficiency. Moreover, the degree of automation is high, and there is no need for manual handling of the material 6, which further improves work efficiency and safety.

[0036] It should be noted that both the first conveyor belt 101 and the second conveyor belt 201 have a clockwise rotation state and a counterclockwise rotation state. The clockwise rotation state of the first conveyor belt 101 and the second conveyor belt 201 refers to the conveyor belt rotating in a clockwise direction. Figures 1 to 2 From the perspective of [the viewpoint], rotating clockwise; the reverse rotation state of the first conveyor belt 101 and the second conveyor belt 201 refers to the conveyor belts rotating clockwise. Figures 1 to 2 Rotates counterclockwise from the perspective of [the viewpoint].

[0037] Optionally, material 6 is a battery cell, and the buffer device is used to buffer the battery cells on the battery cell assembly line. The battery cells are placed on the conveyor belt via a material tray.

[0038] Optionally, the support frame 5 is a frame that is placed or fixed on a reference surface such as the ground or a work platform. The support frame 5 provides support for the buffer platform 1 and the lifting platform 2. The support frame 5 has a base plate 502 and a top plate 503 that are arranged opposite each other along the first direction Z. The base plate 502 is a support plate that is close to the reference surface along the first direction Z, and the top plate 503 is a plate that is far away from the reference surface along the first direction Z. The mounting rod 501 is fixedly connected between the base plate 502 and the top plate 503.

[0039] It should be noted that both the buffer platform 1 and the lifting platform 2 have a platform body. Rollers are provided at both ends of the platform body along the second direction X. The conveyor belt is wound around the rollers at both ends to realize the cyclic movement around the platform body. Here, the conveyor belt refers to the first conveyor belt 101 or the second conveyor belt 201. Preferably, both the first conveyor belt 101 and the second conveyor belt 201 are belts.

[0040] In one embodiment, further combination Figure 3 As shown, each buffer platform 1 is connected to a first drive unit 105 on one side along the third direction Y. The first drive unit 105 is adapted to drive the corresponding first conveyor belt 101 to rotate. The first drive unit 105 has forward and reverse rotation functions, so that it can drive the first conveyor belt 101 to operate in a forward rotation state or in a reverse rotation state.

[0041] In one embodiment, further combination Figure 3 As shown, a second drive unit 206 is provided on one side of the lifting platform 2 along the third direction Y. The second drive unit 206 is adapted to drive the second conveyor belt 201 to rotate. The second drive unit 206 has forward and reverse rotation functions, so that it can drive the second conveyor belt 201 to operate in a forward rotation state or in a reverse rotation state.

[0042] In one embodiment, further combination Figure 1 As shown, the buffer device also includes a lifting drive unit 3, which is connected to the lifting platform 2 and is adapted to drive the lifting platform 2 to rise and fall. By setting the lifting drive unit 3 to drive the lifting platform 2 to rise and fall, the degree of automation is improved, and the lifting movement of the lifting platform 2 can be precisely controlled, ensuring that the lifting platform 2 can be aligned with different buffer platforms 1, thereby improving the flexibility and reliability of the device.

[0043] In one embodiment, further combination Figure 2 As shown, along the third direction Y, an extension 210 is provided on one side of the lifting platform 2, and a nut 207 is provided on the extension 210; the lifting drive unit 3 includes a motor 301 and a lead screw 302, the lead screw 302 extends along the first direction Z and engages with the internal thread of the nut 207, and the motor 301 is adapted to drive the lead screw 302 to rotate. Here, the third direction Y refers to... Figures 1 to 3 The direction indicated by the middle arrow is "Y". By setting a nut 207 on one side of the lifting platform 2 along its third direction Y, and setting a lifting drive unit 3 including a lead screw 302 and a motor 301 that drives the lead screw 302 to rotate, the lead screw 302 drives the lifting platform 2 to rise and fall through the cooperation of the lead screw 302 and the nut 207. The lifting drive unit 3 provides driving force and guidance for the lifting platform 2, ensuring the stability of the lifting process. Moreover, the driving method of the motor 301 and the lead screw 302 has a simple structure, high transmission efficiency, and high reliability. At the same time, the position of the lead screw 302 and the nut 207 does not affect the operation of the second conveyor belt 201.

[0044] It should be noted that the lead screw 302 is connected to the support frame 5, and the nut 207 has a threaded hole that passes through in the first direction Z. The position of the nut 207 corresponds to that of the lead screw 302.

[0045] In one embodiment, further combination Figure 2 As shown, the extension member 210 includes a connecting plate 202. The surface of the connecting plate 202 is perpendicular to the first direction Z. A through hole is formed in the connecting plate 202 along the first direction Z, and a nut 207 corresponds to the through hole. It should be noted that the platform body of the lifting platform 2 is provided with first side plates 205 on both sides along the third direction Y. Optionally, the extension member 210 is fixedly connected to the first side plate 205, or the extension member 210 is directly fixedly connected to the platform body to ensure the relative stability between the extension member 210 and the platform body.

[0046] In one embodiment, further combination Figures 1 to 2 As shown, the buffer device also includes a guide rod 4, which is connected to the support frame 5. The guide rod 4 extends along the first direction Z and is located on the side of the second conveyor belt 201 along the third direction Y. The extension part 210 also includes a guide portion 203, which has a guide hole 204 extending along the first direction Z. The guide portion 203 is sleeved on the guide rod 4 through the guide hole 204, and the guide rod 4 slides in cooperation with the guide hole 204. Through the cooperation between the guide rod 4 and the guide hole 204 on the extension part 210, the guide rod 4 provides guidance and support for the lifting platform 2 in the first direction Z, making the lifting process of the lifting platform 2 more stable. This can effectively prevent the lifting platform 2 from shaking during the lifting process, thereby improving the accuracy of the docking between the lifting platform 2 and the buffer platform 1, and ensuring the safety of the material 6 on the lifting platform 2.

[0047] Preferably, there are two guide rods 4 and two guide parts 203 that correspond one-to-one with the guide rods 4. This can further improve the stability of the guiding process and the stability of the cooperation between the guide rods 4 and the extension parts 210, thereby ensuring the stability of the lifting platform 2 during the lifting process.

[0048] More preferably, such as Figures 1 to 3 As shown, two guide rods 4 are arranged on both sides of the lead screw 302 along the second direction X, which facilitates the layout and can further improve the deflection limit of the guide rods 4 on the lifting platform 2, thereby further ensuring the stability of the lifting platform 2 during the movement along the first direction Z.

[0049] In one embodiment, further combination Figure 2 As shown, the lifting platform 2 has first side plates 205 on both sides along the third direction Y. The first side plates 205 are spaced apart from the second conveyor belt 201, and the upper side of the first side plate 205 is higher than the upper surface of the second conveyor belt 201. Here, "upper side" refers to... Figure 2 The side in the direction indicated by the middle arrow; the upper surface refers to... Figure 2The surface in the direction indicated by the middle arrow, the upper surface of the second conveyor belt 201, is used to place the battery cells. By setting first side plates 205 on both sides of the lifting platform 2 along the third direction Y, the material 6 being transferred on the second conveyor belt 201 can be protected, thereby preventing the material 6 from slipping off the lifting platform during the conveying process and increasing the safety of the material 6 transfer process.

[0050] It should be noted that, along the third direction Y, one side of the lifting platform 2 is provided with an extension 210, while the other side is not provided with an extension 210. The first side plate 205 on the side without the extension 210 can move along the third direction Y, thereby adapting to different sizes of materials 6, increasing the adaptability of the buffer device to different sizes of materials 6, making it highly flexible and widely applicable.

[0051] In one embodiment, further combination Figures 1 to 2 As shown, the buffer assembly also includes: a gate 102 and a gate drive unit 104. The number of gates 102 is equal to the number of buffer platforms 1 and corresponds one-to-one. The gates 102 are closable and are located on the side of the buffer platform 1 closest to the lifting platform 2. The gate drive unit 104 is located on at least one side of the buffer platform 1 along the third direction Y. The gate drive unit 104 is adapted to drive the gates 102 to open or close. By providing a gate 102 on the side of each buffer platform 1 closest to the lifting platform 2, when the gate 102 is open, material 6 can be allowed to pass through, and when the gate 102 is closed, material 6 can be blocked. Thus, the gates 102 can be opened or closed according to whether material 6 needs to be transferred between the buffer platform 1 and the lifting platform 2. On the one hand, it can ensure the smooth transfer of material 6 when it needs to be transferred, and on the other hand, it can prevent material 6 from falling off the buffer platform 1 when it does not need to be transferred, thereby further improving safety. Furthermore, the gates 102 are controlled by the gate drive unit 104, resulting in a high degree of automation and convenient operation.

[0052] In one embodiment, further combination Figures 3 to 4 As shown, the cache platform 1 has second side plates 103 on both sides along the third direction Y, and the gate 102 has side edges 1021 on both sides along the third direction Y. Each side edge 1021 corresponds to one of the two second side plates 103, and the upper part of each side edge 1021 is hinged to a corresponding second side plate 103. Here, the third direction Y refers to... Figures 3 to 4 The direction indicated by the middle arrow is "Y"; the upper part of side 1021 refers to the part of side 1021 that is away from the bottom plate 502 of the support frame 5 along the first direction Z.

[0053] By setting a second side plate 103 on each side of the buffer platform 1 along the third direction Y, with the upper side of the second side plate 103 being higher than the upper surface of the first conveyor belt 101, the second side plate 103 protects the material 6 on the first conveyor belt 101, preventing the material 6 from falling off the side of the first conveyor belt 101. At the same time, by setting two sides 1021 of the gate 102, each corresponding to and hinged to a second side plate 103, the gate 102 can be opened or closed by rotating around the hinge point, which is convenient for operation. Furthermore, by setting the hinge point between the gate 102 and the second side plate 103 to be located on the upper part of the side 1021, the gate 102 can be opened upwards, thereby ensuring that the material can pass smoothly from below the gate 102 when the gate 102 is open. The gate 102 provides the largest possible passage space for the material along the first direction Z, ensuring the smooth progress of the material transfer process.

[0054] The upper side of the second side plate 103 refers to the side of the second side plate 103 that is close to the top plate 503 of the support frame 5 along the first direction Z; the upper surface of the first conveyor belt 101 refers to the surface of the first conveyor belt 101 that is close to the top plate 503 along the first direction Z; and the lower side of the gate 102 refers to the side of the gate 102 facing the bottom plate 502.

[0055] In one embodiment, the gate drive unit 104 is a telescopic cylinder. The fixed part of the telescopic cylinder is connected to the second side plate 103, and the telescopic part is connected to the side 1021 of the gate 102. By extending and retracting the telescopic part relative to the fixed part, the gate 102 is driven to rotate relative to the second side plate 103, thereby realizing the opening or closing of the gate 102. Optionally, the telescopic cylinder is a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0056] Preferably, there are two gate drive units 104. One gate drive unit 104 is provided on each side of the third direction Y of the buffer platform 1. Each gate drive unit 104 is connected to a side 1021. The gate 102 is driven by the synchronous operation of the two gate drive units 104, which further ensures the smooth opening of the gate 102.

[0057] In one embodiment, the buffer platform 1 is provided with a first connecting part 106, which extends out of the coverage area of ​​the first conveyor belt 101. The buffer platform 1 is connected to the mounting rod 501 through the first connecting part 106. The connection of the buffer platform 1 to the mounting rod 501 through the first connecting part 106 allows multiple buffer platforms 1 to be arranged at intervals along the first direction Z, enhancing the stability of the overall device and further ensuring the reliability of the buffer platform 1.

[0058] There are four first connecting parts 106. Along the third direction Y, two first connecting parts 106 are provided on each side of the platform body of the buffer platform 1. Correspondingly, there are four mounting rods 501. The four first connecting parts 106 correspond one-to-one with the four mounting rods 501, thereby improving the stability of the buffer platform 1 and ensuring the safety of materials on the buffer platform 1.

[0059] In one embodiment, the first connecting portion 106 is fixedly connected to the mounting rod 501, ensuring the stability of the position of the buffer platform relative to the mounting rod 501, thereby ensuring the reliability of the buffer device. Optionally, further combined with Figure 4 As shown, the first connecting part 106 is a clamping unit. The clamping unit is sleeved on the mounting rod 501 and can be tightened with screws to ensure that the clamping unit can be stably connected to the mounting rod 501 and to ensure the safety of the cache platform 1.

[0060] In other embodiments, the first connecting part 106 is adjustablely connected to the mounting rod 501 along the first direction Z. By setting the position of the first connecting part 106 relative to the mounting rod 501 to be adjustable along the first direction Z, the position of the buffer platform 1 in the first direction Z can be adjusted by moving the first connecting part 106. This allows the spacing between two adjacent buffer platforms 1 along the first direction Z to be adaptively adjusted according to the height of the material. This ensures that the spacing between two adjacent buffer platforms 1 provides sufficient space for the material 6, while avoiding excessive spacing between them. This saves the moving distance of the lifting platform 2 along the first direction Z, saves time, and improves work efficiency.

[0061] Optionally, the mounting rod 501 is equipped with a pitch-changing mechanism. The multi-layer buffer platforms 1 are connected together using this mechanism, enabling rapid shape changes and quick adjustment of the distance between them. The pitch-changing mechanism can be a camshaft pitch-changing mechanism, where the distance between the multi-layer buffer platforms 1 can be adjusted by rotating the mounting rod 501. Alternatively, as an alternative implementation, the first connecting part 106 can also be connected to the mounting rod 501 via a linear bearing on top of the clamping unit. This allows for relative movement between the first connecting part 106 and the mounting rod 501, resulting in better stability.

[0062] The buffer device in this embodiment consists of a layered buffer platform 1 and a lifting platform 2 forming an integrated transportation structure. The conveyor belt rotates forward for loading and reverses for unloading.

[0063] Taking a buffer platform 1 with 5 layers and materials placed on it as an example, the specific working process of the buffer device is explained. The 5 layers of buffer platform 1 are sequentially labeled as buffer platform 1#, buffer platform 2#, buffer platform 3#, buffer platform 4#, and buffer platform 5#, from bottom to top (i.e., from bottom plate 502 to top plate 503). The materials are placed on the conveyor belt via pallets. The specific working process of the buffer device is as follows:

[0064] 1) Motor 301 starts, driving screw 302 to rotate, moving lifting platform 2 to the same height as buffer platform 1;

[0065] 2) The gate drive unit 104 extends and pushes open the gate 102 of the No. 1 buffer platform;

[0066] 3) The first conveyor belt 101 of the No. 1 buffer platform rotates in the forward direction, transferring the two stacks of pallets and the materials inside them to the second conveyor belt 201 of the lifting platform 2;

[0067] 4) After the transfer is completed, the gate drive unit 104 retracts, closing the gate 102;

[0068] 5) The second conveyor belt 201 of the lifting platform 2 transports the stacked materials to the loading area;

[0069] 6) Once the single-pass action is completed, the subsequent transfer of materials to buffer platforms #2, #3, #4, and #5 is the same as that of buffer platform #1. However, before the transfer, lifting platform 2 needs to be raised to the corresponding buffer platform, and after the materials are transferred to lifting platform 2, lifting platform 2 can be lowered to the height of buffer platform #1 so that the second conveyor belt 201 of lifting platform 2 can transfer the stacked materials to the loading area.

[0070] The buffer device in this embodiment sets up multiple buffer platforms 1 arranged in layers along the first direction Z, and then the lifting drive unit 3 drives the lifting platform 2 to move up and down, transferring the battery cells from the first conveyor belt 101 of the buffer platform 1 to the second conveyor belt 201 of the lifting platform 2, and then introducing them into the production loading and unloading machine, achieving the technical effect of buffering multiple battery cells. This effectively solves the problems of low efficiency, waste of human resources, high production costs, high risk of personnel having to frequently move around the factory to carry materials, low degree of automation, and inability to promote lean production when manually handling materials.

[0071] According to an embodiment of the present invention, another aspect provides a battery cell assembly line, comprising: the above-mentioned buffer device, wherein the number of buffer devices is at least one.

[0072] Preferably, there are two buffer devices, which are arranged side by side along the third direction Y. One buffer device is used to buffer the battery cells, and the other buffer device is used to place the material tray after the battery cells are removed, which further improves work efficiency and makes full use of the site space.

[0073] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A buffer device having a first direction (Z), a second direction (X), and a third direction (Y) that intersect each other pairwise, characterized in that, include: The support frame (5) has a mounting rod (501) extending along the first direction (Z); The buffer assembly includes multiple buffer platforms (1) spaced apart along the first direction (Z), each buffer platform (1) being connected to the mounting rod (501), and each buffer platform (1) being provided with a first conveyor belt (101) extending along the second direction (X). A lifting platform (2) is disposed on one side of the buffer component along the second direction (X). The lifting platform (2) can be lifted and lowered along the first direction (Z). A second conveyor belt (201) extending along the second direction (X) is disposed on the lifting platform (2). The rotation state of the first conveyor belt (101) is the same as that of the second conveyor belt (201).

2. The caching device according to claim 1, characterized in that, The buffer device further includes a lifting drive unit (3), which is connected to the lifting platform (2) and is adapted to drive the lifting platform (2) to lift.

3. The caching device according to claim 2, characterized in that, Along the third direction (Y), an extension part (210) is provided on one side of the lifting platform (2), and a nut (207) is provided on the extension part (210); The lifting drive unit (3) includes a motor (301) and a lead screw (302). The lead screw (302) extends along the first direction (Z) and engages with the internal thread of the nut (207). The motor (301) is adapted to drive the lead screw (302) to rotate.

4. The caching device according to claim 3, characterized in that, The buffer device further includes a guide rod (4), which is connected to the support frame (5). The guide rod (4) extends along the first direction (Z) and is located on one side of the second conveyor belt (201) along the third direction (Y). The extension part (210) further includes a guide part (203), on which a guide hole (204) is provided, which passes through the first direction (Z), and the guide part (203) is slidably sleeved on the guide rod (4) through the guide hole (204).

5. The caching device according to claim 1, characterized in that, The lifting platform (2) is provided with first side plates (205) on both sides along the third direction (Y). The first side plates (205) are spaced apart from the second conveyor belt (201), and the upper side of the first side plate (205) is higher than the upper surface of the second conveyor belt (201).

6. The caching device according to claim 1, characterized in that, The caching component also includes: Gates (102), the number of gates (102) is equal to the number of buffer platforms (1) and corresponds one-to-one, and the gates (102) are openable and closable on the side of the buffer platform (1) near the lifting platform (2); A gate drive unit (104) is disposed on at least one side of the buffer platform (1) along a third direction (Y), and the gate drive unit (104) is adapted to drive the gate (102) to open or close.

7. The caching device according to claim 6, characterized in that, The cache platform (1) is provided with second side plates (103) on both sides along the third direction (Y), and the gate (102) is provided with side edges (1021) on both sides along the third direction (Y). The two side edges (1021) correspond one-to-one with the two second side plates (103), and the upper part of each side edge (1021) is hinged to a second side plate (103) corresponding to that side edge (1021).

8. The buffer device according to any one of claims 1 to 7, characterized in that, The buffer platform (1) is provided with a first connecting part (106), which extends out of the coverage area of ​​the first conveyor belt (101). The buffer platform (1) is connected to the mounting rod (501) through the first connecting part (106).

9. The caching device according to claim 8, characterized in that, The first connecting part (106) is fixedly connected to the mounting rod (501); Alternatively, the first connecting part (106) may be adjustably connected to the mounting rod (501) along the first direction (Z).

10. A battery cell assembly line, characterized in that, include: The caching device according to any one of claims 1 to 9, wherein the number of the caching devices is at least one.

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