Flattening equipment

Abstract

The utility model relates to flattening equipment. The flattening equipment comprises a supporting piece, a moving frame, a driving assembly, a first pressing plate, a second pressing plate and a telescopic assembly. The movable frame is movably arranged on the supporting piece, the driving assembly is connected with the movable frame and the supporting piece, and the driving assembly is used for driving the movable frame to move on the supporting piece in the first direction; the telescopic assembly is connected with the first pressing plate and / or the second pressing plate, and the telescopic assembly is used for driving the first pressing plate to move in the direction close to the second pressing plate or driving the second pressing plate to move in the direction close to the first pressing plate. The flattening equipment can improve the processing efficiency of the battery cell during processing.

Description

Technical Field

[0001] This utility model relates to the field of battery cell processing equipment, specifically to a flattening device. Background Technology

[0002] Because lithium-ion power batteries have advantages such as high energy, good safety, light weight, and long cycle life, they are now widely used in energy storage systems. Currently, lithium batteries in related technologies are all pouch batteries. During the production of pouch batteries, the cells need to be flattened after winding. Currently, related technologies require the use of conveyor belts or robotic arms to place the wound cells onto flattening equipment. This makes the flattening equipment large in size and the flattening efficiency low, affecting the processing speed of the cells. Utility Model Content

[0003] In view of this, the present invention provides a flattening device. The flattening device can improve the processing efficiency of battery cells during processing.

[0004] This utility model provides the following technical solution:

[0005] A flattening device includes: a support member, a movable frame, a drive assembly, a first pressure plate, a second pressure plate, and a telescopic assembly;

[0006] The movable frame is movably mounted on the support member, and the drive assembly is connected to the movable frame and the support member respectively. The drive assembly is used to drive the movable frame to move along a first direction on the support member.

[0007] The telescopic component is connected to the first pressure plate and / or the second pressure plate, and the telescopic component is used to drive the first pressure plate to move closer to the second pressure plate, or to drive the second pressure plate to move closer to the first pressure plate.

[0008] Furthermore, the driving component includes: a driving element, a slider, and a driving rod;

[0009] The driving component is connected to the driving rod, the slider is sleeved on the driving rod, and the slider is connected to the movable frame. When the driving component drives the driving rod to rotate, the slider drives the movable frame to move.

[0010] Furthermore, the movable frame includes: a first support body, a second support body, and a third support body;

[0011] The first support and the second support are spaced apart along the second direction, and the first support and the third support are spaced apart on both sides of the second support.

[0012] Furthermore, it also includes: a first slide rail and a second slide rail;

[0013] The first slide rail and the second slide rail are spaced apart along the second direction, and the first slide rail and the second slide rail are respectively connected to the second support body and the support member.

[0014] Furthermore, the first slide rail includes a first movable part and a first fixed part; the second slide rail includes a second movable part and a second fixed part;

[0015] Both the first movable part and the second movable part are disposed on the second support body, and both the first fixed part and the second fixed part are disposed on the support member.

[0016] Furthermore, the telescopic assembly includes: a first telescopic member and a second telescopic member;

[0017] The first telescopic member and the second telescopic member are spaced apart on the first support body or the third support body. The first telescopic member is connected to the first pressure plate, and the second telescopic member is connected to the second pressure plate. The first telescopic member is used to drive the first pressure plate to move closer to the second pressure plate, and the second telescopic member is used to drive the second pressure plate to move closer to the first pressure plate.

[0018] Furthermore, the telescopic assembly includes: a lead screw, a first moving member, and a second moving member;

[0019] The first moving member and the second moving member are respectively sleeved on both ends of the lead screw. The first pressure plate is connected to the first moving member, and the second pressure plate is connected to the second moving member. The first moving member is used to drive the first pressure plate to move closer to the second pressure plate, and the second moving member is used to drive the second pressure plate to move closer to the first pressure plate.

[0020] Furthermore, the lead screw has a first threaded portion and a second threaded portion, the first threaded portion and the second threaded portion having opposite directions; wherein, the first moving member is disposed on the first threaded portion, and the second moving member is disposed on the second threaded portion.

[0021] Furthermore, it also includes: a conveyor belt; the conveyor belt is rotatably arranged around the second pressure plate.

[0022] Furthermore, it also includes: cable chains;

[0023] The cable chain is connected to the movable frame, and when the movable frame moves, the cable chain moves with the movable frame.

[0024] The aforementioned flattening device has a movable frame movably mounted on a support member, and the movable frame is connected to the support member via a drive assembly. This allows the drive assembly to move the movable frame along a first direction on the support member, enabling it to move relative to the support member and approach the relevant equipment from the previous step. This improves the ease of material handling for the flattening device. Furthermore, a first pressure plate and a second pressure plate are spaced apart within the movable frame and connected to the first and second pressure plates via a telescopic assembly. This allows the drive assembly to move the first and second pressure plates, bringing the first pressure plate closer to the second pressure plate. The second pressure plate is brought closer to the first pressure plate so that the first and second pressure plates can clamp the battery cell. After the first and second pressure plates clamp the battery cell, the drive assembly can drive the moving frame to move in the negative direction of the first direction so that the moving frame can move away from the relevant equipment in the previous step. Then, the telescopic assembly continues to apply pressure so that the first and second pressure plates can flatten the battery cell to complete the flattening work. This can improve the processing efficiency of the battery cell in the processing process, and at the same time reduce the number of related auxiliary equipment in the battery cell processing process (currently, related technologies use a robotic arm to grab the battery cell and put it into the flattening equipment for flattening). Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments 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.

[0026] Figure 1 One of the overall structural schematic diagrams of the flattening device provided in the embodiments of this utility model;

[0027] Figure 2 A schematic diagram of the structure of the mobile frame provided in this embodiment of the utility model;

[0028] Figure 3 One of the structural schematic diagrams of the flattening device provided in the embodiments of this utility model;

[0029] Figure 4 A second schematic diagram of the flattening device provided in this embodiment of the utility model;

[0030] Figure 5 The third schematic diagram of the flattening device provided in the embodiment of this utility model;

[0031] Figure 6 This is the second schematic diagram of the overall structure of the flattening device provided in this embodiment of the utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100-Plaining device; 10-Support component; 20-Moving frame; 21-First support body; 22-Second support body; 23-Third support body; 30-Drive assembly; 31-Drive component; 32-Drive rod; 33-Slider; 40-First pressure plate; 50-Second pressure plate; 60-Telescopic assembly; 61-First telescopic component; 62-Second telescopic component; 63-Screw; 64-First moving component; 65-Second moving component; 71-First slide rail; 711-First movable part; 712-First fixed part; 72-Second slide rail; 721-Second movable part; 722-Second fixed part; 81-Conveyor belt; 90-Drag chain. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0036] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0037] Because lithium-ion power batteries have advantages such as high energy, good safety, light weight, and long cycle life, they are now widely used in energy storage systems. Currently, lithium batteries in related technologies are all pouch batteries. During the production of pouch batteries, the cells need to be flattened after winding. Currently, related technologies require the use of conveyor belts or robotic arms to place the wound cells onto flattening equipment. This makes the flattening equipment large in size and the flattening efficiency low, affecting the processing speed of the cells.

[0038] For ease of subsequent explanation, Figure 1 The viewpoint shown defines a first direction and a second direction, where the first direction is parallel to... Figure 1 The direction of the X-axis is shown in the figure; where the direction pointed to by the arrow on the X-axis is the positive direction of the X-axis, and the direction opposite to the direction pointed to by the arrow on the X-axis is the negative direction of the X-axis.

[0039] The second direction is parallel to... Figure 1 The direction of the Z-axis is shown in the figure; where the direction pointed to by the arrow on the Z-axis is the positive direction of the Z-axis, and the direction opposite to the direction pointed to by the arrow on the Z-axis is the negative direction of the Z-axis. Please refer to this for the following description of the coordinate system.

[0040] Therefore, this embodiment provides a flattening device. The flattening device can improve the processing efficiency of battery cells during processing.

[0041] Please see Figure 1 A flattening device 100 includes: a support member 10, a movable frame 20, a drive assembly 30, a first pressure plate 40, a second pressure plate 50, and a telescopic assembly 60.

[0042] The movable frame 20 is movably mounted on the support member 10. The drive assembly 30 is connected to the movable frame 20 and the support member 10 respectively. The drive assembly 30 is used to drive the movable frame 20 to move along the first direction on the support member.

[0043] The first pressure plate 40 and the second pressure plate 50 are spaced apart within the movable frame 20. The telescopic component 60 is connected to the first pressure plate 40 and / or the second pressure plate 50. The telescopic component 60 is used to drive the first pressure plate 40 to move closer to the second pressure plate 50, or to drive the second pressure plate 50 to move closer to the first pressure plate 40.

[0044] The aforementioned flattening device 100 has a movable frame 20 movably mounted on the support member 10, and the movable frame 20 is connected to the support member 10 via a drive assembly 30. This allows the drive assembly 30 to drive the movable frame 20 to move forward along a first direction on the support member 10, enabling the movable frame 20 to move relative to the support member 10 and approach the relevant equipment from the previous step, thus improving the convenience of material handling for the flattening device 100. A first pressure plate 40 and a second pressure plate 50 are spaced apart within the movable frame 20 and connected to the first pressure plate 40 and the second pressure plate 50 via a telescopic assembly 60. This allows the drive assembly 30 to drive the first pressure plate 40 and the second pressure plate 50 to move, thus enabling the first pressure plate 40 to move forward along a first direction. Plate 40 is brought close to the second pressure plate 50 or the second pressure plate 50 is brought close to the first pressure plate 40, so that the first pressure plate 40 and the second pressure plate 50 can clamp the battery cell. After the first pressure plate 40 and the second pressure plate 50 clamp the battery cell, the drive assembly 30 can drive the moving frame 20 to move in the negative direction of the first direction, so that the moving frame 20 can move away from the relevant equipment in the previous step. Then, the telescopic assembly 60 continues to apply pressure so that the first pressure plate 40 and the second pressure plate 50 can flatten the battery cell to complete the flattening work of the battery cell. This can improve the processing efficiency of the battery cell in the processing process, and also reduce the number of related auxiliary equipment in the battery cell processing process (currently, related technologies use a robotic arm to grab the battery cell and put it into the flattening equipment 100 for flattening).

[0045] Please see Figure 2 In some embodiments, the drive assembly 30 includes: a drive member 31, a slider 33, and a drive rod 32;

[0046] The driving component 31 is connected to the driving rod 32, and the slider 33 is sleeved on the driving rod 32. The slider 33 is connected to the movable frame 20. When the driving component 31 drives the driving rod 32 to rotate, the slider 33 drives the movable frame 20 to move.

[0047] Understandably, the aforementioned drive assembly 30 is located at the bottom of the movable frame 20. The drive assembly 30 can drive the movable frame 20 to move. Specifically, the drive assembly 30 includes: a drive member 31, a slider 33, and a drive rod 32. The drive member 31 is located at the bottom of the movable frame 20 and is connected to the drive rod 32. A slider 33 is provided on the drive rod 32 and is connected to the movable frame 20. Both the drive rod 32 and the slider 33 are provided with threads, and the threads on the drive rod 32 are compatible with the threads on the slider 33. Thus, when the drive member 31 rotates, it can drive the drive rod 32 to rotate. When the drive rod 32 rotates, it can cause the slider 33 to move on the drive rod 32. When the slider 33 moves on the drive rod 32, it can drive the movable frame 20 to move in the first direction. This can drive the movable frame 20 to move so that the movable frame 20 can get closer to the battery cell, thereby achieving the purpose of improving the efficiency of the flattening equipment 100.

[0048] Please see Figure 2 In some embodiments, the movable frame 20 includes: a first support 21, a second support 22, and a third support 23;

[0049] The first support 21 and the second support 22 are spaced apart along the second direction, and the first support 21 and the third support 10 are spaced apart on both sides of the second support 22.

[0050] Understandably, the movable frame 20 includes a first support body 21, a second support body 22, and a third support body 23. The first support body 21 and the second support body 22 are spaced apart within the movable frame 20 along a second direction, and the first support body 21 and the third support body 23 are respectively located on both sides of the second support body 22. By arranging the first support body 21, the second support body 22, and the third support body 23 spaced apart along a vertical direction, the structural stability of the movable frame 20 can be effectively balanced, and the movable frame 20 can also ensure that the flattening device 100 moves more smoothly and stably.

[0051] Understandably, the first support 21 and the third support 23 provide force points for the telescopic assembly 60 to fix the telescopic assembly 60 between the first support 21 and the third support 23. The third support 23 is also for connecting with the drive assembly 30, so that the drive assembly 30 can drive the third support 23 to move. The third support 23 is fixedly connected to the first support 21 and the second support 22. Therefore, when the third support 23 moves, it can drive the first support 21 and the second support 22 to move, thereby causing the entire mobile frame 20 to move.

[0052] Please see Figure 2In some embodiments, it further includes: a first slide rail 71 and a second slide rail 72;

[0053] The first slide rail 71 and the second slide rail 72 are spaced apart along the second direction, and the first slide rail 71 and the second slide rail 72 are respectively connected to the second support body 22 and the support member 10.

[0054] Understandably, the first slide rail 71 and the second slide rail 72 are spaced apart on the second support body 22 along the second direction. When the drive assembly 30 drives the moving frame 20 to move, both the first slide rail 71 and the second slide rail 72 can extend or retract. This allows the moving frame 20 to move more smoothly relative to the support member 10. At the same time, it can also provide support and guidance during the movement of the moving frame 20, so that the moving frame 20 can move more smoothly and avoids poor or unstable movement caused by excessive friction.

[0055] Please see Figure 2 In some embodiments, the first slide rail 71 includes a first movable part 711 and a first fixed part 712; the second slide rail 72 includes a second movable part 721 and a second fixed part 722.

[0056] The first movable part 711 and the second movable part 721 are both disposed on the second support body 22, and the first fixed part 712 and the second fixed part 722 are both disposed on the support member 10.

[0057] Understandably, the first slide rail 71 includes a first movable part 711 and a first fixed part 712, and the second slide rail 72 includes a second movable part 721 and a second fixed part 722. The first movable part 711 and the second movable part 721 are both disposed on the second support body 22, and the first fixed part 712 and the second fixed part 722 are both disposed on the support member 10. When the movable frame 20 moves, the first movable part 711 can move relative to the first fixed part 712, and the second movable part 721 can move relative to the second fixed part 722. The first fixed part 712 and the second fixed part 722 are spaced apart on the support member 10. By providing the two fixed parts, the first movable part 711 and the second movable part 721 can move more smoothly and accurately during the movement, avoiding unnecessary deformation or loosening of the first slide rail 71 or the second slide rail 72 during the movement due to the fixed parts, thereby improving the stability of the equipment.

[0058] Please see Figure 3 In some embodiments, the telescopic assembly 60 includes: a first telescopic member 61 and a second telescopic member 62;

[0059] The first telescopic member 61 and the second telescopic member 62 are spaced apart on the first support body 21 or the third support body 23. The first telescopic member 61 is connected to the first pressure plate 40, and the second telescopic member 62 is connected to the second pressure plate 50. The first telescopic member 61 is used to drive the first pressure plate 40 to move closer to the second pressure plate 50, and the second telescopic member 62 is used to drive the second pressure plate 50 to move closer to the first pressure plate 40.

[0060] Understandably, the telescopic assembly 60 includes a first telescopic member 61 and a second telescopic member 62. The first telescopic member 61 and the second telescopic member 62 are spaced apart on the first support body 21 or the second support body 22. The first telescopic member 61 is connected to the first pressure plate 40, and the second telescopic member 62 is connected to the second pressure plate 50. In this way, when the first telescopic member 61 extends or retracts, the first pressure plate 40 can move closer to the second pressure plate 50. When the second telescopic member 62 extends or retracts, the second pressure plate 50 can move closer to the first pressure plate 40. When the first telescopic member 61 and the second telescopic member 62 extend or retract simultaneously, the first pressure plate 40 and the second pressure plate 50 can move closer together quickly.

[0061] Understandably, the first telescopic component 61 and the second telescopic component 62 can be selected to extend or retract depending on the actual usage, or both can extend or retract simultaneously. This allows the first pressure plate 40 to quickly approach the second pressure plate 50, or vice versa.

[0062] Understandably, the telescopic component 60 needs to first clamp the battery cell wound on the winding roller. After clamping the battery cell on the winding roller, the winding roller retracts (in this process, the second telescopic component 62 can be activated first, so that the second pressure plate 50 abuts against the bottom of the winding roller, and then the first telescopic component 61 is activated, so that the second pressure plate 50 abuts against the top of the winding roller to clamp it). Then the drive component 30 moves, driving the moving frame 20 to move away from the winding roller. Then the first telescopic component 61 and the second telescopic component 62 continue to compress, so that the first pressure plate 40 and the second pressure plate 50 are brought closer together until the battery cell is flattened.

[0063] Please see Figure 4 In some embodiments, the telescopic assembly 60 includes: a lead screw 63, a first movable member 64, and a second movable member 65;

[0064] The first moving part 64 and the second moving part 65 are respectively sleeved on both ends of the lead screw 63. The first pressure plate 40 is connected to the first moving part 64, and the second pressure plate 50 is connected to the second moving part 65. The first moving part 64 is used to drive the first pressure plate 40 to move closer to the second pressure plate 50, and the second moving part 65 is used to drive the second pressure plate 50 to move closer to the first pressure plate 40.

[0065] Understandably, the aforementioned telescopic assembly 60 includes: a lead screw 63, a first moving member 64, and a second moving member 65. Specifically, the first moving member 64 and the second moving member 65 are sleeved on both ends of the lead screw 63. The first moving member 64 is connected to the first pressure plate 40, and the second moving member 65 is connected to the second pressure plate 50. Therefore, when the lead screw 63 rotates, it can drive the first moving member 64 and the second moving member 65 to move on the lead screw 63, thereby driving the first pressure plate 40 and the second pressure plate 50 to move in a direction parallel to the lead screw. That is, when the lead screw 63 rotates, it can drive the first moving member 64 to move closer to the second moving member 65, and the second moving member 65 to move closer to the first moving member 64.

[0066] Understandably, by rotating the lead screw 63, the first moving part 64 and the second moving part 65 are driven to move along their axial direction. This improves the accuracy and stability of the first moving part 64 and the second moving part 65 during the movement process, thus ensuring consistency and uniformity during the flattening process. This ultimately improves the working efficiency, accuracy, and stability of the flattening equipment 100.

[0067] In some embodiments, the lead screw 63 has a first threaded portion and a second threaded portion, the first threaded portion and the second threaded portion being in opposite directions; wherein, the first moving member 64 is disposed on the first threaded portion, and the second moving member 65 is disposed on the second threaded portion.

[0068] Understandably, the aforementioned lead screw 63 has a first threaded portion and a second threaded portion, wherein the rotation direction of the first threaded portion and the rotation direction of the second threaded portion are set to opposite directions. The first moving member 64 is disposed on the first threaded portion, and the second moving member 65 is disposed on the second threaded portion. In this way, when the lead screw 63 moves, it can drive the first moving member 64 and the second moving member 65 to move, so that the first moving member 64 moves closer to the second moving member 65.

[0069] Please see Figure 5 In some embodiments, it further includes: a conveyor belt 81; the conveyor belt 81 is rotatably arranged around the second pressure plate 50.

[0070] Understandably, a conveyor belt 81 is rotatably mounted on the second pressure plate 50. Specifically, rotating belt pulleys are mounted at both ends of the second pressure plate 50, and the belt is mounted on the belt pulleys. When the belt pulleys rotate, they can drive the conveyor belt 81 to rotate. Specifically, after the first pressure plate 40 and the second pressure plate 50 complete the flattening of the battery cell, the conveyor belt 81 can transport the battery cell away from the conveyor belt 81 to improve the flattening efficiency of the flattening equipment 100.

[0071] Please see Figure 6 In some implementations, it also includes: a cable chain 90;

[0072] The cable chain 90 is connected to the movable frame 20. When the movable frame 20 moves, the cable chain 90 moves with the movable frame 20.

[0073] Understandably, a cable chain 90 is also installed at the bottom of the movable frame 20. The main function of the cable chain 90 is to provide support and protection for cables, pipes, or other connecting components that need to be moved within the equipment. In this design, the cable chain 90 is connected to the movable frame 20, ensuring that the cable chain 90 moves along with the movable frame 20, thereby preventing damage to cables or pipes due to friction or stretching, and thus improving the overall stability and long-term operational reliability of the equipment.

[0074] In this utility model, the terms "embodiment" and "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The appearance of these phrases in various places in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this utility model can be combined with other embodiments. Furthermore, it should be understood that the features, structures, or characteristics described in the various embodiments of this utility model can be arbitrarily combined to form another embodiment that does not depart from the spirit and scope of the technical solution of this utility model, provided there is no contradiction between them.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model should not depart from the spirit and scope of the technical solution of this utility model.

Claims

1. A flattening device, characterized in that, include: Support components, movable frame, drive assembly, first pressure plate, second pressure plate, telescopic assembly; The movable frame is movably mounted on the support member, and the drive assembly is connected to the movable frame and the support member respectively. The drive assembly is used to drive the movable frame to move along a first direction on the support member. The telescopic component is connected to the first pressure plate and / or the second pressure plate, and the telescopic component is used to drive the first pressure plate to move closer to the second pressure plate, or to drive the second pressure plate to move closer to the first pressure plate.

2. The flattening device according to claim 1, characterized in that, The driving assembly includes: a driving component, a slider, and a driving rod; The driving component is connected to the driving rod, the slider is sleeved on the driving rod, and the slider is connected to the movable frame. When the driving component drives the driving rod to rotate, the slider drives the movable frame to move.

3. The flattening device according to claim 2, characterized in that, The mobile frame includes: a first support body, a second support body, and a third support body; The first support and the second support are spaced apart along the second direction, and the first support and the third support are spaced apart on both sides of the second support.

4. The flattening device according to claim 3, characterized in that, Also includes: First slide rail and second slide rail; The first slide rail and the second slide rail are spaced apart along the second direction, and the first slide rail and the second slide rail are respectively connected to the second support body and the support member.

5. The flattening device according to claim 4, characterized in that, The first slide rail includes a first movable part and a first fixed part; the second slide rail includes a second movable part and a second fixed part. Both the first movable part and the second movable part are disposed on the second support body, and both the first fixed part and the second fixed part are disposed on the support member.

6. The flattening device according to claim 3, characterized in that, The telescopic assembly includes: a first telescopic component and a second telescopic component; The first telescopic member and the second telescopic member are spaced apart on the first support body or the third support body. The first telescopic member is connected to the first pressure plate, and the second telescopic member is connected to the second pressure plate. The first telescopic member is used to drive the first pressure plate to move closer to the second pressure plate, and the second telescopic member is used to drive the second pressure plate to move closer to the first pressure plate.

7. The flattening device according to claim 1, characterized in that, The telescopic assembly includes: a lead screw, a first moving part, and a second moving part; The first moving member and the second moving member are respectively sleeved on both ends of the lead screw. The first pressure plate is connected to the first moving member, and the second pressure plate is connected to the second moving member. The first moving member is used to drive the first pressure plate to move closer to the second pressure plate, and the second moving member is used to drive the second pressure plate to move closer to the first pressure plate.

8. The flattening device according to claim 7, characterized in that, The lead screw has a first threaded portion and a second threaded portion, the first threaded portion and the second threaded portion having opposite directions; wherein, the first moving member is disposed on the first threaded portion, and the second moving member is disposed on the second threaded portion.

9. The flattening device according to any one of claims 1 to 8, characterized in that, Also includes: conveyor; The conveyor belt is arranged to rotate around the second pressure plate.

10. The flattening device according to claim 9, characterized in that, Also includes: Drag chains; The cable chain is connected to the movable frame, and when the movable frame moves, the cable chain moves with the movable frame.

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