Flattening mechanism

Abstract

The utility model relates to a flattening mechanism which comprises a base plate, a passing roller, a first adjusting assembly and a second adjusting assembly, the first adjusting assembly and the second adjusting assembly are installed on the base plate, the passing roller is used for abutting against a target sheet, the first end of the passing roller is hinged to the first adjusting assembly, and the second end of the passing roller is hinged to the second adjusting assembly. The first adjusting assembly can drive the first end to be close to or away from the substrate, and the second adjusting assembly can drive the second end to be close to or away from the substrate. When the edges of the two sides of the suspended part of the target sheet are inclined and curled, the acting force of the target sheet on the first end or the second end of the passing roller changes, at the moment, the first end or the second end of the passing roller can move in the height direction of the flattening mechanism, the passing roller is inclined and abuts against the edge of the target sheet again, and therefore the target sheet is flattened. Therefore, the edge of the target sheet is tightened again, the problems of inclination, edge curling and the like of the suspended part of the target sheet are solved, and the difficulty in the subsequent deviation rectifying and machining process is lowered.

Description

Technical Field

[0001] This application relates to the field of lithium battery processing technology, and in particular to a flattening mechanism. Background Technology

[0002] The raw materials for lithium battery electrodes, separators, and tabs are stored and transported in roll form. During the lithium battery manufacturing process, the target sheet needs to be pulled from the roll and processed to ultimately form the aforementioned electrode, separator, and tab structures.

[0003] During the process of pulling the target sheet, along the length of the target sheet, the two ends of the target sheet are subjected to force while the middle part is suspended. The suspended part in the middle of the target sheet is prone to problems such as tilting and curling, which increases the difficulty of subsequent correction and processing. Utility Model Content

[0004] This application relates to a flattening mechanism that can reduce problems such as tilting and curling at the edges of the suspended parts of the target sheet, thereby reducing the difficulty of subsequent correction and processing.

[0005] This application provides a flattening mechanism, including a substrate, a first adjusting component, a second adjusting component, and a guide roller. The first adjusting component and the second adjusting component are both mounted on the substrate. The guide roller is used to abut against a target sheet. The guide roller includes a first end and a second end distributed along its own axial direction. The first end is hinged to the first adjusting component, and the second end is hinged to the second adjusting component. Along the height direction of the flattening mechanism, the first adjusting component can drive the first end to approach or move away from the substrate, and the second adjusting component can drive the second end to approach or move away from the substrate. The height direction of the flattening mechanism is perpendicular to the axial direction of the guide roller.

[0006] In this application, when the two sides of the suspended part of the target sheet are tilted or curled, the force on the first or second end of the roller will change. At this time, the first or second end of the roller can move along the height direction of the flattening mechanism, so that the roller tilts and re-abuts the edge of the target sheet, thereby making the edge of the target sheet taut again, reducing the problems of tilting and curling of the suspended part of the target sheet, and reducing the difficulty of subsequent correction and processing.

[0007] In one possible design, the flattening mechanism further includes a mounting plate mounted on a substrate, and a first adjusting component mounted on the mounting plate. When the first adjusting component drives the first end to move along the height direction of the flattening mechanism, the mounting plate can move relative to the substrate along the axial direction of the roller.

[0008] In one possible design, one of the mounting plate and the substrate is provided with a slide rail, and the other is provided with a slide groove. The slide rail and the slide groove cooperate, and when the mounting plate moves relative to the substrate along the axial direction of the roller, the slide groove moves along the slide rail.

[0009] In one possible design, the substrate has a channel that extends through the substrate along the height direction of the flattening mechanism and along the axial direction of the roller. A portion of the first adjusting assembly is located within the channel. The substrate is provided with a slide rail along the width direction of the flattening mechanism, located on one or both sides of the channel. The width direction of the flattening mechanism is perpendicular to the height direction of the flattening mechanism and the axial direction of the roller.

[0010] In one possible design, the first adjustment component includes a first guide post, which is hinged to a first end and connected to the substrate via a linear bearing. Along the height direction of the flattening mechanism, the first end can drive the first guide post closer to the target sheet under its own weight. The second adjustment component includes a second guide post, which is hinged to a second end and connected to the substrate via a linear bearing. Along the height direction of the flattening mechanism, the second end can drive the second guide post closer to the target sheet under its own weight.

[0011] In one possible design, the first adjustment assembly further includes a first limiting member connected to the first guide post. Along the height direction of the flattening mechanism, the first limiting member is located on the side of the first guide post away from the first end. The first limiting member can abut against the substrate to limit the movement distance of the first guide post in the height direction of the flattening mechanism. The second adjustment assembly further includes a second limiting member connected to the second guide post. Along the height direction of the flattening mechanism, the second limiting member is located on the side of the second guide post away from the second end. The second limiting member can abut against the substrate to limit the movement distance of the second guide post in the height direction of the flattening mechanism.

[0012] In one possible design, the first adjustment assembly includes a first link and a first drive member. One end of the first link is hinged to a first end, and the other end of the first link is driven to the first drive member. The first drive member can drive the first link to move along the height direction of the flattening mechanism, and the first link can drive the first end to move along the height direction of the flattening mechanism. The second adjustment assembly includes a second link and a second drive member. One end of the second link is hinged to a second end, and the other end of the second link is driven to the second drive member. The second drive member can drive the second link to move along the height direction of the flattening mechanism, and the second link can drive the second end to move along the height direction of the flattening mechanism.

[0013] In one possible design, the flattening mechanism further includes a first pressure sensor for detecting the pressure applied to a first end by the target sheet. The first pressure sensor is electrically or signal-connected to a first drive member, which can drive a first link to move based on the detection result of the first pressure sensor. The flattening mechanism also includes a second pressure sensor for detecting the pressure applied to a second end by the target sheet. The second pressure sensor is electrically or signal-connected to a second drive member, which can drive a second link to move based on the detection result of the second pressure sensor.

[0014] In one possible design, along the height direction of the flattening mechanism, the first link and the first drive member are indirectly connected via a first pressure sensor; along the height direction of the flattening mechanism, the second link and the second drive member are indirectly connected via a second pressure sensor.

[0015] In one possible design, the roller includes a base and a roller body, with a first adjustment component and a second adjustment component respectively hinged to the base, the roller body mounted on the base, and the roller body capable of rotating about its own axis.

[0016] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0017] Figure 1 A schematic diagram of the flattening mechanism provided in this application;

[0018] Figure 2 A schematic diagram of the flattening mechanism provided in this application in one embodiment;

[0019] Figure 3 for Figure 2 A magnified view of the local structure of part A in the image;

[0020] Figure 4 A schematic diagram of the connection structure between the first adjustment component and the substrate of the flattening mechanism provided in this application in one embodiment;

[0021] Figure 5 A schematic diagram of the flattening mechanism provided in this application in another embodiment;

[0022] Figure 6 for Figure 5 A schematic diagram of the flattening mechanism in the diagram.

[0023] Figure label:

[0024] 01-Target sheet; 1-Substrate; 11-Slide rail; 12-Channel; 13-Linear bearing; 2-First adjustment assembly; 21-First guide post; 22-First limiting member; 23-First connecting rod; 24-First driving member; 3-Second adjustment assembly; 31-Second guide post; 32-Second limiting member; 33-Second connecting rod; 34-Second driving member; 4-Roller; 41-First end; 42-Second end; 43-Base; 44-Roller body; 5-Mounting plate; 6-First pressure sensor; 7-Second pressure sensor; 8-Rotating shaft.

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0026] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0027] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0028] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0029] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0030] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0031] This application provides a flattening mechanism, such as... Figure 1As shown, the flattening mechanism includes a substrate 1, a first adjusting component 2, a second adjusting component 3, and a roller 4. Both the first adjusting component 2 and the second adjusting component 3 are mounted on the substrate 1. The roller 4 is used to contact the target sheet 01, which includes, but is not limited to, electrode sheets, diaphragms, etc. The roller 4 includes a first end 41 and a second end 42 distributed along its own axial direction X. The first end 41 is hinged to the first adjusting component 2, and the second end 42 is hinged to the second adjusting component 3. Along the height direction Z of the flattening mechanism, the first adjusting component 2 can drive the first end 41 closer to or further away from the substrate 1, and the second adjusting component 3 can drive the second end 42 closer to or further away from the substrate 1. The height direction Z of the flattening mechanism is perpendicular to the axial direction X of the roller 4.

[0032] In this embodiment, reference is also made to Figure 1 and Figure 2 During the process of pulling the target sheet 01 along the width direction Y of the flattening mechanism, the roller 4 can abut against the suspended part in the middle of the target sheet 01, thereby tautning the target sheet 01 and reducing problems such as tilting and curling of the suspended part of the target sheet 01. In addition, along the axial direction X of the roller 4, that is, along the length direction of the flattening mechanism, when the two sides of the suspended part of the target sheet 01 tilts or curls, the force on the first end 41 or the second end 42 of the roller 4 will change. At this time, the first end 41 or the second end 42 of the roller 4 can move along the height direction of the flattening mechanism, causing the roller 4 to tilt and abut against the edge of the target sheet 01 again, thereby tautning the edge of the target sheet 01 again, reducing problems such as tilting and curling of the suspended part of the target sheet 01, and reducing the difficulty of subsequent correction and processing.

[0033] The first adjustment component 2 and the first end 41 are connected by, for example, Figure 3 The pivot 8 shown is connected so that the first end 41 can swing around the pivot 8 on the first adjusting assembly 2, and the first adjusting assembly 2 and the first end 41 are connected by means such as Figure 3 The pivot 8 shown is connected so that the second end 42 can swing around the pivot 8 on the second adjustment component 3.

[0034] In this embodiment, when one end of the roller 4 is tilted along the height direction Z of the flattening mechanism, the distance between the first end 41 and the second end 42 in the axial direction X of the roller 4 will decrease, and the angle between the first end 41 and the first adjusting component 2, and the angle between the second end 42 and the second adjusting component 3 will change. Therefore, the first adjusting component 2 and the first end 41, and the second adjusting component 3 and the second end 42 are hinged by the rotating shaft 8, which reduces the restriction of the first adjusting component 2 and the second adjusting component 3 on the tilt of the roller 4, thereby enabling the roller 4 to work normally and stably, that is, improving the working stability and reliability of the roller 4.

[0035] like Figure 4 As shown, the flattening mechanism also includes a mounting plate 5, which is mounted on the substrate 1. The first adjustment component 2 is mounted on the mounting plate 5. When the first adjustment component 2 drives the first end 41 to move along the height direction Z of the flattening mechanism, the mounting plate 5 can move relative to the substrate 1 along the axial direction X of the roller 4.

[0036] In this embodiment, since the distance between the first end 41 and the second end 42 on the axial direction X of the roller 4 decreases when the roller 4 is tilted, the distance between the first adjusting component 2 and the second adjusting component 3 connected to the first end 41 and the second end 42 on the axial direction X of the roller 4 also decreases. Therefore, by mounting the first adjusting component 2 on the mounting plate 5, and by allowing the mounting plate 5 to move relative to the base plate 1, the restriction of the tilt of the roller 4 by the first adjusting component 2 and the second adjusting component 3 is reduced, thereby enabling the roller 4 to work normally and stably, thus improving the working stability and reliability of the roller 4.

[0037] like Figure 4 As shown, one of the mounting plate 5 and the base plate 1 is provided with a slide rail 11, and the other is provided with a slide groove. The slide rail 11 and the slide groove cooperate. When the mounting plate 5 moves relative to the base plate 1 along the axial direction X of the roller 4, the slide groove moves along the slide rail 11.

[0038] In this embodiment, during the process of the mounting plate 5 moving along the axial direction X of the roller 4, the cooperation between the slide groove and the slide rail 11 can limit the moving direction of the mounting plate 5, thereby improving the accuracy of the moving direction of the mounting plate 5.

[0039] In one embodiment, along the height direction Z of the flattening mechanism, the mounting plate 5 and the first adjustment component 2 are both located between the base plate 1 and the roller 4.

[0040] In another embodiment, such as Figure 4 As shown, along the height direction Z of the flattening mechanism, the mounting plate 5 is located on the side of the base plate 1 away from the roller 4. The base plate 1 has a channel 12 that extends through the base plate 1 along the height direction Z of the flattening mechanism. A portion of the first adjusting component 2 is located in the channel 12, which extends along the axial direction X of the roller 4. During the tilting process of the roller 4, a portion of the first adjusting component 2 can move along the axial direction X of the roller 4 within the channel 12 to reduce the risk of the base plate 1 restricting the movement of the first adjusting component 2 and thus restricting the tilting of the roller 4, thereby improving the working stability and reliability of the roller 4.

[0041] Among them, such as Figure 4 As shown, the slide rail 11 is disposed on the base plate 1, and the slide groove is disposed on the mounting plate 5. Along the width direction Y of the flattening mechanism, the slide rail 11 is located on one or both sides of the channel 12. The width direction Y of the flattening mechanism is perpendicular to the height direction Z of the flattening mechanism and the axial direction X of the roller 4.

[0042] In this embodiment, the slide rail 11 is disposed on the substrate 1, which can improve the structural strength of the substrate 1, thereby helping to extend the service life and working stability of the substrate 1 and the flattening mechanism. The slide rail 11 can be disposed on one side of the channel 12 to simplify the structure of the substrate 1; the slide rail 11 can also be disposed on both sides of the channel 12 to reduce the risk of tilting of the mounting plate 5, thereby improving the smoothness of the movement of the mounting plate 5.

[0043] Based on the flattening mechanism in any of the above embodiments, the tilting of the roller 4 can be achieved by its own gravity or by a driving component.

[0044] In one embodiment, such as Figure 2 As shown, the first adjustment component 2 includes a first guide post 21, which is hinged to a first end 41. The first guide post 21 is connected to the substrate 1 via a linear bearing 13. Along the height direction Z of the flattening mechanism, the first end 41 can drive the first guide post 21 closer to the target sheet 01 under its own weight. The second adjustment component 3 includes a second guide post 31, which is hinged to a second end 42. The second guide post 31 is connected to the substrate 1 via a linear bearing 13. Along the height direction Z of the flattening mechanism, the second end 42 can drive the second guide post 31 closer to the target sheet 01 under its own weight.

[0045] In this embodiment, taking the side where the first end 41 is located as an example, when the edge of the target sheet 01 tilts away from the roller 4 and curls, the supporting force of the target sheet 01 on the first end 41 decreases, so that the upward supporting force on the first end 41 is less than the downward gravity. Therefore, the first end 41 approaches the target sheet 01 under the action of gravity. The first end 41 drives the first guide post 21 to move along the height direction Z of the flattening mechanism and the axial direction X of the roller 4 until the first end 41 re-abuts the target sheet 01, so that the supporting force of the target sheet 01 on the first end 41 is balanced with the gravity of the roller 4.

[0046] In this embodiment, the roller 4 tilts under its own weight, thereby straightening and tightening the target sheet 01, simplifying the structure of the flattening mechanism and reducing its cost. The first guide post 21 is connected to the substrate 1, and the second guide post 31 is connected to the substrate 1 via linear bearings 13. This allows the first guide post 21 and the second guide post 31 to move only relative to the substrate 1 along the height direction Z of the flattening mechanism, thus restricting their rotation. This improves the accuracy of the movement direction of the first guide post 21 and the second guide post 31, thereby enhancing the working stability of the flattening mechanism.

[0047] Among them, such as Figure 2As shown, the first adjustment assembly 2 further includes a first limiting member 22, which is connected to the first guide post 21. Along the height direction Z of the flattening mechanism, the first limiting member 22 is located on the side of the first guide post 21 away from the first end 41. The first limiting member 22 can abut against the substrate 1. Specifically, the first limiting member 22 can abut against the mounting plate 5 on the substrate 1 to limit the movement distance of the first guide post 21 in the height direction Z of the flattening mechanism. The second adjustment assembly 3 further includes a second limiting member 32, which is connected to the second guide post 31. Along the height direction Z of the flattening mechanism, the second limiting member 32 is located on the side of the second guide post 31 away from the second end 42. The second limiting member 32 can abut against the substrate 1 to limit the movement distance of the second guide post 31 in the height direction Z of the flattening mechanism.

[0048] In this embodiment, the first limiting member 22 and the second limiting member 32 limit the movement distance of the first guide post 21 and the second guide post 31 in the height direction Z of the flattening mechanism, thereby reducing the risk that the first guide post 21 and the second guide post 31 will move too far and detach from the substrate 1, causing the flattening mechanism to disintegrate, and thus improving the structural stability and working stability of the flattening mechanism.

[0049] The first limiting member 22 can be non-removably fixed to the first guide post 21. In this case, the connection method between the first limiting member 22 and the first guide post 21 includes, but is not limited to, welding, bonding, etc.; the first limiting member 22 can also be detachably fixed to the first guide post 21. In this case, the connection method between the first limiting member 22 and the first guide post 21 includes, but is not limited to, threaded connection, fastener connection, etc., and the fasteners include, but are not limited to, screws, bolts, etc.; the first limiting member 22 can also be integrally formed with the first guide post 21. This application embodiment does not impose special limitations on the structure and connection method of the first limiting member 22 and the first guide post 21.

[0050] The second limiting member 32 can be non-removably fixed to the second guide post 31. In this case, the connection method between the second limiting member 32 and the second guide post 31 includes, but is not limited to, welding, bonding, etc.; the second limiting member 32 can also be detachably fixed to the second guide post 31. In this case, the connection method between the second limiting member 32 and the second guide post 31 includes, but is not limited to, threaded connection, fastener connection, etc., and the fasteners include, but are not limited to, screws, bolts, etc.; the second limiting member 32 can also be integrally formed with the second guide post 31. This application embodiment does not impose special limitations on the structure and connection method of the second limiting member 32 and the second guide post 31.

[0051] When the tilting of roller 4 is driven by the drive unit, such as Figure 5 and Figure 6As shown, the first adjustment assembly 2 includes a first connecting rod 23 and a first driving member 24. One end of the first connecting rod 23 is hinged to the first end 41, and the other end of the first connecting rod 23 is driven to the first driving member 24. The first driving member 24 can drive the first connecting rod 23 to move along the height direction Z of the flattening mechanism, and the first connecting rod 23 can drive the first end 41 to move along the height direction Z of the flattening mechanism. The second adjustment assembly 3 includes a second connecting rod 33 and a second driving member 34. One end of the second connecting rod 33 is hinged to the second end 42, and the other end of the second connecting rod 33 is driven to the second driving member 34. The second driving member 34 can drive the second connecting rod 33 to move along the height direction Z of the flattening mechanism, and the second connecting rod 33 can drive the second end 42 to move along the height direction Z of the flattening mechanism.

[0052] In this embodiment, the first drive member 24 drives the first end 41 to move and the second drive member 34 drives the second end 42 to move, thereby achieving the tilting of the roller 4. This can improve the control accuracy of the tilting angle and tilting distance of the roller 4, thereby reducing the risk of the roller 4 applying too much force to the target sheet 01 and damaging the target sheet 01.

[0053] In one embodiment, the operator determines the tilt angle of the roller 4 based on the tilt degree, curling degree, and tension degree of the target sheet 01, and manually controls the opening or closing of the first drive member 24 and the second drive member 34 to control the tilt angle and tilt distance of the roller 4.

[0054] In another embodiment, such as Figure 6 As shown, the flattening mechanism also includes a first pressure sensor 6, which is used to detect the pressure applied by the target sheet 01 to the first end 41. The first pressure sensor 6 is electrically or signal-connected to the first drive member 24, and the first drive member 24 can drive the first link 23 to move according to the detection result of the first pressure sensor 6. The flattening mechanism also includes a second pressure sensor 7, which is used to detect the pressure applied by the target sheet 01 to the second end 42. The second pressure sensor 7 is electrically or signal-connected to the second drive member 34, and the second drive member 34 can drive the second link 33 to move according to the detection result of the second pressure sensor 7.

[0055] In this embodiment, the first pressure sensor 6 detects the force between the first end 41 and the target sheet 01, and the second pressure sensor 7 detects the force between the second end 42 and the target sheet 01. The first pressure sensor 6 and the second pressure sensor 7 then control the first drive component 24 and the second drive component 34 to stop working based on the detection results, which reduces the operation difficulty of the flattening mechanism and thus reduces the labor cost in the process of using the flattening mechanism. At the same time, it improves the accuracy of the tilt angle and distance of the roller 4.

[0056] In one embodiment, a first pressure sensor 6 is disposed at the first end 41 of the roller 4, and a second pressure sensor 7 is disposed at the second end 42 of the roller 4.

[0057] In another embodiment, such as Figure 6 As shown, along the height direction Z of the flattening mechanism, the first connecting rod 23 and the first driving member 24 are indirectly connected through the first pressure sensor 6, and the second connecting rod 33 and the second driving member 34 are indirectly connected through the second pressure sensor 7. That is, the first pressure sensor 6 is set between the first connecting rod 23 and the first driving member 24, and the second pressure sensor 7 is set between the second connecting rod 33 and the second driving member 34. This simplifies the connection difficulty between the first pressure sensor 6 and the first end 41, and the second pressure sensor 7 and the second end 42, thereby reducing the cost of the flattening mechanism by simplifying its structure.

[0058] In any of the above embodiments, such as Figure 2 As shown, the roller 4 includes a base 43 and a roller body 44. The first adjusting component 2 and the second adjusting component 3 are respectively hinged to the base 43. The roller body 44 is installed on the base 43 and can rotate around its own axis.

[0059] In this embodiment, after the roller body 44 comes into contact with the target sheet 01, during the process of picking up and pulling the target sheet 01, the roller body 44 can roll on the surface of the target sheet 01, thereby reducing the friction between the roller body 44 and the target sheet 01 and reducing the risk of wear on the target sheet 01.

[0060] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A flattening mechanism, characterized in that, The flattening mechanism includes: base(1); A first adjustment component (2) and a second adjustment component (3), both of which are mounted on the substrate (1); A roller (4) is used to abut against the target sheet (01). The roller (4) includes a first end (41) and a second end (42) distributed along its own axial direction (X). The first end (41) is hinged to the first adjustment component (2), and the second end (42) is hinged to the second adjustment component (3). Along the height direction (Z) of the flattening mechanism, the first adjustment component (2) can drive the first end (41) to approach or move away from the substrate (1), and the second adjustment component (3) can drive the second end (42) to approach or move away from the substrate (1). The height direction (Z) of the flattening mechanism is perpendicular to the axial direction (X) of the roller (4).

2. The flattening mechanism according to claim 1, characterized in that, The flattening mechanism further includes a mounting plate (5), which is mounted on the substrate (1). The first adjustment component (2) is mounted on the mounting plate (5). When the first adjustment component (2) drives the first end (41) to move along the height direction (Z) of the flattening mechanism, the mounting plate (5) can move relative to the substrate (1) along the axial direction (X) of the roller (4).

3. The flattening mechanism according to claim 2, characterized in that, One of the mounting plate (5) and the base plate (1) is provided with a slide rail (11), and the other is provided with a slide groove. The slide rail (11) cooperates with the slide groove. When the mounting plate (5) moves relative to the base plate (1) along the axial direction (X) of the roller (4), the slide groove moves along the slide rail (11).

4. The flattening mechanism according to claim 3, characterized in that, The substrate (1) has a channel (12) that extends through the substrate (1) along the height direction (Z) of the flattening mechanism and extends along the axial direction (X) of the roller (4). A portion of the first adjusting component (2) is located within the channel (12). The substrate (1) is provided with the slide rail (11) along the width direction (Y) of the flattening mechanism. The slide rail (11) is located on one or both sides of the channel (12). The width direction (Y) of the flattening mechanism is perpendicular to the height direction (Z) of the flattening mechanism and the axial direction (X) of the roller (4).

5. The flattening mechanism according to any one of claims 1 to 4, characterized in that, The first adjustment component (2) includes a first guide post (21), which is hinged to the first end (41). The first guide post (21) is connected to the substrate (1) through a linear bearing (13). Along the height direction (Z) of the flattening mechanism, the first end (41) can drive the first guide post (21) to approach the target sheet (01) under its own gravity. The second adjustment component (3) includes a second guide post (31), which is hinged to the second end (42). The second guide post (31) is connected to the substrate (1) via a linear bearing (13). Along the height direction (Z) of the flattening mechanism, the second end (42) can drive the second guide post (31) to approach the target sheet (01) under its own gravity.

6. The flattening mechanism according to claim 5, characterized in that, The first adjustment component (2) further includes a first limiting member (22), which is connected to the first guide post (21) along the height direction (Z) of the flattening mechanism. The first limiting member (22) is located on the side of the first guide post (21) away from the first end (41). The first limiting member (22) can abut against the substrate (1) to limit the movement distance of the first guide post (21) in the height direction (Z) of the flattening mechanism. The second adjustment component (3) further includes a second limiting member (32), which is connected to the second guide post (31). Along the height direction (Z) of the flattening mechanism, the second limiting member (32) is located on the side of the second guide post (31) away from the second end (42). The second limiting member (32) can abut against the substrate (1) to limit the movement distance of the second guide post (31) in the height direction (Z) of the flattening mechanism.

7. The flattening mechanism according to any one of claims 1 to 4, characterized in that, The first adjustment component (2) includes a first connecting rod (23) and a first driving member (24). One end of the first connecting rod (23) is hinged to the first end (41), and the other end of the first connecting rod (23) is driven to be connected to the first driving member (24). The first driving member (24) can drive the first connecting rod (23) to move along the height direction (Z) of the flattening mechanism. The first connecting rod (23) can drive the first end (41) to move along the height direction (Z) of the flattening mechanism. The second adjustment component (3) includes a second connecting rod (33) and a second driving member (34). One end of the second connecting rod (33) is hinged to the second end (42), and the other end of the second connecting rod (33) is driven to the second driving member (34). The second driving member (34) can drive the second connecting rod (33) to move along the height direction (Z) of the flattening mechanism, and the second connecting rod (33) can drive the second end (42) to move along the height direction (Z) of the flattening mechanism.

8. The flattening mechanism according to claim 7, characterized in that, The flattening mechanism also includes a first pressure sensor (6), which is used to detect the pressure applied by the target sheet (01) to the first end (41). The first pressure sensor (6) is electrically or signal-connected to the first drive member (24). The first drive member (24) can drive the first connecting rod (23) to move according to the detection result of the first pressure sensor (6). The flattening mechanism also includes a second pressure sensor (7), which is used to detect the pressure applied by the target sheet (01) to the second end (42). The second pressure sensor (7) is electrically or signal-connected to the second drive member (34), and the second drive member (34) can drive the second link (33) to move according to the detection result of the second pressure sensor (7).

9. The flattening mechanism according to claim 8, characterized in that, Along the height direction (Z) of the flattening mechanism, the first connecting rod (23) and the first driving member (24) are indirectly connected through the first pressure sensor (6); Along the height direction (Z) of the flattening mechanism, the second link (33) and the second drive member (34) are indirectly connected through the second pressure sensor (7).

10. The flattening mechanism according to any one of claims 1 to 4, characterized in that, The roller (4) includes a base (43) and a roller body (44). The first adjustment component (2) and the second adjustment component (3) are respectively hinged to the base (43). The roller body (44) is mounted on the base (43) and can rotate around its own axis.

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