Coating roll nip adjustment device, roll press apparatus, and dry coater

Abstract

The utility model discloses a kind of coating roller pressure gap adjusting device, roller pressing equipment and dry coater, coating roller pressure gap adjusting device includes adjusting mechanism, including first driving part and first adjusting part, first driving part is connected with first adjusting part, first driving part can drive first adjusting part reciprocating along first direction, first adjusting part is provided with first connecting portion;Second adjusting part, with first connecting portion same side setting, second adjusting part is provided with second connecting portion, second connecting portion is movably connected with first connecting portion, when first driving part drives first adjusting part reciprocating along first direction, first adjusting part can drive second adjusting part reciprocating along second direction. Roller pressing equipment and dry coater all applied above-mentioned coating roller pressure gap adjusting device.

Description

Technical Field

[0001] This utility model relates to the field of coating machine production technology, and in particular to a coating roller gap adjustment device, roller pressing equipment and dry coating machine. Background Technology

[0002] In the manufacturing process of lithium battery electrodes, the rolling process plays a decisive role in controlling electrode thickness. Traditional rolling equipment suffers from technical drawbacks, primarily manifested in two ways: firstly, it cannot flexibly adjust the roller gap according to the process requirements of different electrodes, making it difficult for the same equipment to adapt to the production needs of various product specifications; secondly, when thickness deviations occur during rolling, the existing mechanical structure lacks real-time dynamic adjustment capabilities, requiring manual adjustment only when the machine is stopped, severely impacting production efficiency and product consistency. Particularly in dry coating processes, electrode thickness fluctuations during rolling directly affect battery performance, and fixed roller structures cannot achieve closed-loop compensation adjustment during production. This rigid structural design not only reduces the equipment's process adaptability but also easily leads to quality problems such as over- or under-pressure of the electrodes due to untimely adjustments. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a coating roller gap adjustment device, roller pressing equipment, and dry coating machine, which has the advantages of improving the flexibility and efficiency of roller gap adjustment, achieving dynamic compensation adjustment, and enhancing product consistency.

[0004] In a first aspect, the coating roller gap adjusting device according to an embodiment of the present invention includes: An adjustment mechanism includes a first driving member and a first adjusting member. The first driving member is connected to the first adjusting member. The first driving member can drive the first adjusting member to reciprocate along a first direction. The first adjusting member is provided with a first connecting portion. The second adjusting member is disposed on the same side as the first connecting part. The second adjusting member is provided with a second connecting part, which is movably connected to the first connecting part. When the first driving member drives the first adjusting member to reciprocate along the first direction, the first adjusting member can drive the second adjusting member to reciprocate along the second direction.

[0005] The coating roller gap adjustment device according to the embodiments of this utility model has at least the following beneficial effects: The coating roller gap adjustment device provided in this application realizes precise dynamic adjustment of the roller gap by setting a linkage mechanism with motion direction conversion function. In the adjustment mechanism, the first driving member provides linear driving force, and the first adjusting member converts the linear motion in the first direction into the linear motion of the second adjusting member in the second direction through the movable connection between the first connecting part and the second connecting part. The movable connection structure between the first connecting part and the second connecting part allows a single driving source to realize vertical motion conversion, avoiding the problems of structural complexity and poor synchronization caused by traditional multi-drive systems. The second adjusting member can directly drive the pressure roller to perform high-precision displacement compensation through the bidirectional motion conversion mechanism, thereby realizing online closed-loop control of the roller gap. This structure converts horizontal driving force into vertical adjustment force through mechanical linkage, simplifies the transmission chain while ensuring rigidity, and is particularly suitable for high-frequency dynamic adjustment needs in confined spaces.

[0006] According to the coating roller gap adjustment device of the present utility model embodiment, one end of the first adjustment member is provided with an inclined first connecting surface to form the first connecting part, and the second adjustment member is provided with an inclined second connecting surface to form the second connecting part. The first connecting surface and the second connecting surface are matched and slidably connected. or, The first adjusting member includes a first fixing block and a first connecting block. The first fixing block and the first connecting block are detachably connected. One end of the first connecting block is provided with an inclined first connecting surface to form the first connecting portion. The second adjusting member includes a second fixing block and a second connecting block. The second fixing block and the second connecting block are detachably connected. One end of the second connecting block is provided with an inclined second connecting surface to form the second connecting portion. The first connecting surface and the second connecting surface are matched and slidably connected.

[0007] According to the coating roller gap adjustment device of the present invention, the adjustment mechanism further includes a transmission component, the output end of the first driving member is connected to the transmission component, and the first adjusting member is connected to the transmission component.

[0008] According to the coating roller gap adjustment device of the present utility model embodiment, the transmission component includes a mounting base and an adjusting screw, the adjusting screw is connected to the mounting base, the output end of the first driving member is connected to one end of the adjusting screw, and the first adjusting member is connected to the other end of the adjusting screw; or, The transmission assembly includes a mounting base, a first guide rail, and a first slider. One of the mounting base and the first adjusting member is connected to the first guide rail, and the other of the mounting base and the first adjusting member is connected to the first slider. The output end of the first driving member is connected to the first adjusting member.

[0009] Secondly, according to an embodiment of the present invention, the roller pressing equipment includes: the above-mentioned coating roller gap adjustment device, a base and a pressure roller, wherein the pressure roller is connected to the base and the pressure roller is connected to the second adjusting member, and the second adjusting member can drive the pressure roller to reciprocate along a second direction so that the position of the pressure roller on the base can be adjusted.

[0010] The roller pressing equipment according to the embodiments of this utility model has at least the following beneficial effects: The roller pressing equipment of this application achieves adjustable pressure roller position through the cooperation of the coating roller gap adjusting device, the base, and the pressure roller. The second adjusting component in the coating roller gap adjusting device is directly connected to the pressure roller. When the second adjusting component moves along the second direction, it can drive the pressure roller to adjust its position on the base. This linkage mechanism allows the pressure roller gap to be dynamically adjusted according to the electrode thickness or real-time errors in the production process. The base, as a fixed support structure, provides a reference plane for the movement of the pressure roller, ensuring the stability of the adjustment process. By limiting the mechanical connection between the adjusting device and the pressure roller to reciprocating motion along a specific direction, both adjustment accuracy and mechanical interference that may be caused by multi-degree-of-freedom motion are ensured.

[0011] According to the roller pressing device of this utility model embodiment, the second adjusting member is slidably connected to the base, and the pressing roller is rotatably connected to the second adjusting member; or; The base is provided with a connecting seat, the connecting seat is slidably connected to the base, the pressure roller is rotatably connected to the connecting seat, and the second adjusting member is detachably connected to the connecting seat.

[0012] According to the roller pressing equipment of this utility model, a plurality of pressing rollers are arranged at intervals along a second direction, and a coating roller gap adjustment device is provided between two adjacent pressing rollers. And / or, Both ends of the pressure roller are connected to the coating roller gap adjustment device.

[0013] According to the roller pressing device of the present utility model embodiment, the first adjusting member is further provided with a third connecting part, the third connecting part being disposed opposite to the first connecting part, and the second adjusting member is provided with a fourth connecting part that matches and connects with the third connecting part, the fourth connecting part being disposed opposite to the second connecting part.

[0014] According to the roller pressing device of this utility model embodiment, the third connecting part is the third connecting surface on the first adjusting member, and the third connecting surface is mirrored with the first connecting part; or, The third connecting part is the third connecting surface on the first adjusting member, and the angles between the third connecting surface, the first connecting part and the axis of the first adjusting member are not the same.

[0015] Thirdly, the dry coating machine according to the embodiments of the present invention includes the above-mentioned roller pressing equipment.

[0016] The dry coating machine according to the embodiments of this utility model has at least the following beneficial effects: This application integrates a roller pressing device with adjustable capabilities into a dry coating machine, realizing real-time closed-loop control of the roller gap in the coating process. Its core lies in utilizing the linkage structure of the first and second adjusting components in the coating roller gap adjusting device. When the first adjusting component is driven to move along the first direction by the first driving component, the linear motion is converted into the displacement of the second adjusting component in the second direction by means of the inclined surface fit or the detachable structure of the connecting block, thereby driving the pressure roller to adjust its position. By setting multiple pressure rollers and configuring adjusting devices between adjacent pressure rollers, multiple sets of roller gaps can be independently controlled; and the design of setting adjusting devices at both ends of the pressure rollers ensures the uniformity and stability of the roller gap adjustment. The mirror or asymmetrical fit structure of the third and fourth connecting parts further enhances the mechanical balance during the adjustment process, avoiding mechanism jamming caused by unilateral force. The sliding connection between the connecting seat and the base, and the rotating connection design between the pressure roller and the connecting seat, ensure the normal rotation function of the pressure roller while realizing position adjustment. By combining the above technical features, the dry coating machine is finally equipped with the ability to dynamically adjust the roller gap online, which can adapt to different electrode thickness requirements and achieve closed-loop control.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the coating roller gap adjustment device according to an embodiment of the present invention; Figure 2 This is a structural diagram of the roller pressing equipment according to an embodiment of the present utility model; Figure 3 This is a partial structural cross-sectional view of the roller pressing equipment according to an embodiment of the present utility model; Figure 4 for Figure 3A magnified view of the area marked A.

[0019] Explanation of reference numerals in the attached figures: Coating roller gap adjustment device 100; first driving component 110; first adjusting component 120; first connecting part 121; third connecting part 122; Second adjusting member 200; second connecting part 210; fourth connecting part 220; Transmission assembly 300; mounting base 310; adjusting screw 320; Base 400; Pressure roller 500. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of a utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first" and "second" are used, they are merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] Reference Figure 1This utility model embodiment provides a coating roller gap adjustment device 100, including an adjustment mechanism and a second adjustment member 200. The adjustment mechanism includes a first driving member 110 and a first adjustment member 120. The first driving member 110 is connected to and drives the first adjustment member 120 to move along a first direction. The first adjustment member 120 is provided with a first connecting portion 121. The second adjustment member 200 is disposed on the same side as the first connecting portion 121, and its second connecting portion 210 is movably connected to the first connecting portion 121. When the first adjustment member 120 moves, it drives the second adjustment member 200 to move along a second direction.

[0025] It should be noted that, as Figure 3 As shown in this application, the first direction refers to the direction in which the axis of the pressure roller 500 extends.

[0026] The first driving component 110 is an actuator that generates linear power, which can be implemented using a servo motor in conjunction with a ball screw, or a pneumatic push rod structure. Its function is to provide precise and controllable axial driving force. The first adjusting component 120 is a power transmission component, which can be a slider structure with guide grooves. Its function is to convert the linear motion of the driving component into displacement along a specific trajectory. The first connecting part 121 is a motion conversion interface, which can be a sloped structure. The sloped engagement enables the conversion of motion direction. The second adjusting component 200 is a displacement output component, which can be a moving platform with linear guide rails. Its function is to transmit the converted vertical displacement to the pressure roller 500 assembly. Understandably, when the first driving member 110 pushes the first adjusting member 120 to move horizontally, the inclined surface of the first connecting part 121 and the mating surface of the second connecting part 210 slide relative to each other. Due to the angle of the inclined surface, the horizontal driving force is decomposed into a vertical component, forcing the second adjusting member 200 to move perpendicular to the driving direction. This motion conversion process is achieved through the geometric relationship of the mechanical contact surfaces, without the need for additional sensors or control units. The linkage mechanism adopts a rigid contact design, which can maintain displacement accuracy even when subjected to the reaction force of the roller.

[0027] Beneficially, this solution achieves bidirectional motion control from a single drive source through a mechanical linkage mechanism, eliminating synchronization errors in multi-drive systems. Compared to rack and pinion drives, the inclined plane contact structure reduces transmission chain links, avoids positioning deviations caused by gear backlash, and enables online dynamic adjustment of the roller gap, allowing for real-time adjustment of the 500mm roller spacing based on changes in electrode thickness. The single drive source design reduces equipment complexity and maintenance costs, while the mechanical linkage mechanism ensures the synchronization and reliability of displacement transmission. The inclined plane contact transmission method achieves efficient power transmission in confined spaces, making it particularly suitable for industrial scenarios involving high-frequency reciprocating adjustments.

[0028] In some embodiments of this application, as shown in the figure, one end of the first adjusting member 120 is provided with an inclined first connecting surface to form a first connecting portion 121, and the second adjusting member 200 is provided with an inclined second connecting surface to form a second connecting portion 210. The first connecting surface and the second connecting surface are matched and slidably connected.

[0029] Alternatively, in some other embodiments of this application, the first adjusting member 120 includes a first fixing block and a first connecting block, the first fixing block and the first connecting block are detachably connected, one end of the first connecting block is provided with an inclined first connecting surface to form a first connecting portion 121, the second adjusting member 200 includes a second fixing block and a second connecting block, the second fixing block and the second connecting block are detachably connected, one end of the second connecting block is provided with an inclined second connecting surface to form a second connecting portion 210, the first connecting surface and the second connecting surface are matched and slidably connected.

[0030] It is understandable that the first connecting surface refers to the inclined structure set on the first adjusting member 120, which can be implemented by machining a metal inclined surface, and the direction of movement is changed through the design of the inclined surface angle. The second connecting surface refers to the inclined structure set on the second adjusting member 200, which can be implemented by adopting an inclined surface shape that is complementary to the first connecting surface, and the movement is transmitted through sliding contact.

[0031] Specifically, when the first driving member 110 pushes the first adjusting member 120 to move along the first direction, the first connecting surface and the second connecting surface slide relative to each other. Due to the inclination angle of the inclined contact surface, the second adjusting member 200 is forced to move along the second direction, thereby realizing the change of the direction of motion.

[0032] In the aforementioned embodiment of the detachable structure, the first connecting block and the first fixing block can be connected by bolts, and the second connecting block and the second fixing block can be fixed by snap-fit. When the connecting block needs to be replaced due to long-term sliding wear, only the connecting block needs to be disassembled for replacement without replacing the entire component. Furthermore, by replacing the connecting blocks with different tilt angles, the motion conversion ratio between the first and second directions can be adjusted, and the transmission ratio is adjustable through the replaceable inclined connecting blocks.

[0033] Beneficially, this application realizes non-orthogonal motion conversion between the driving direction and the adjustment direction, solving the problem of the single motion conversion direction of traditional devices; the detachable connecting block structure reduces the cost of component replacement and solves the problem of difficult maintenance of the integral structure; and the flexible adjustment of the transmission ratio is realized by replacing connecting blocks at different angles, adapting to the roller gap adjustment requirements of different precision requirements.

[0034] According to some embodiments of this application, the adjustment mechanism further includes a transmission assembly 300, the output end of the first driving member 110 is connected to the transmission assembly 300, and the first adjusting member 120 is connected to the transmission assembly 300.

[0035] Specifically, the transmission assembly 300 includes a mounting base 310 and an adjusting screw 320. The adjusting screw 320 is connected to the mounting base 310, the output end of the first driving member 110 is connected to one end of the adjusting screw 320, and the first adjusting member 120 is connected to the other end of the adjusting screw 320.

[0036] Alternatively, in some other embodiments of this application, the transmission assembly 300 includes a mounting base 310, a first guide rail and a first slider, one of the mounting base 310 and the first adjusting member 120 is connected to the first guide rail, the other of the mounting base 310 and the first adjusting member 120 is connected to the first slider, and the output end of the first driving member 110 is connected to the first adjusting member 120.

[0037] In this embodiment, the mounting base 310 refers to the basic support component used to fix the transmission assembly 300. Specifically, it can be implemented as a metal block with threaded holes or positioning grooves, connected to the equipment frame by bolts, thus providing a stable mounting reference for the adjusting screw 320 or the guide rail. The adjusting screw 320 refers to a transmission rod with helical patterns, specifically implemented using a trapezoidal thread or ball screw structure, converting rotational motion into linear displacement. In another embodiment, the first guide rail refers to a guide component that guides linear motion, specifically implemented using a linear slide rail or dovetail groove structure. The first slider refers to a sliding component that cooperates with the guide rail, specifically using a modular assembly with ball bearings or sliding bearings; the two cooperate to form a low-friction sliding pair.

[0038] Understandably, in the embodiment of the adjusting screw 320, the first driving member 110 outputs rotational power to the adjusting screw 320, and when the screw rotates, it pushes the first adjusting member 120, which is threadedly engaged with it, to move axially. Because the screw drive has the characteristic of irreversible motion, displacement deviation caused by reverse load drive can be avoided. In the embodiment of the first guide rail and slider, the first driving member 110 directly drives the first adjusting member 120 to slide along the guide rail direction, ensuring the straightness of the motion trajectory. Both embodiments transmit driving power to the first adjusting member 120 through a rigid connection. The screw solution is suitable for high-precision fine-tuning scenarios, while the guide rail solution is suitable for coarse-tuning conditions requiring rapid response.

[0039] Beneficially, the adjusting screw 320 scheme in this application eliminates backlash through the self-locking characteristic of the screw pair, while the guide rail scheme reduces frictional resistance through a high-precision sliding pair. Through these technical solutions, this application achieves stable power transmission from the driving component to the adjusting component. The screw structure ensures accurate displacement control and self-locking capability, while the guide rail structure simplifies the transmission chain and improves response speed. The two schemes provide optional implementation methods for high-precision and rapid adjustment requirements, respectively, thus laying a reliable mechanical transmission foundation for the dynamic adjustment of the pressure roller 500 gap.

[0040] like Figures 2 to 4 As shown, this application further proposes a roller pressing device, including a coating roller gap adjustment device 100, a base 400 and a pressure roller 500. The pressure roller 500 is connected to the base 400 and is connected to a second adjusting member 200. The second adjusting member 200 can drive the pressure roller 500 to reciprocate along a second direction so that the position of the pressure roller 500 on the base 400 can be adjusted.

[0041] Specifically, when the driving component generates linear motion, it drives the first adjusting component 120 to move along the first direction via the transmission assembly 300. The first adjusting component 120 and the second adjusting component 200 generate an interaction force through inclined surface contact, forcing the second adjusting component 200 to move along a second direction perpendicular to the first direction. Since the second adjusting component 200 is directly connected to the pressure roller 500, its displacement is directly transmitted to the pressure roller 500, causing a change in the mounting position of the pressure roller 500 on the base 400. The base 400 and the pressure roller 500 are connected by a sliding pair or a rotating pair to ensure that the pressure roller 500 maintains parallel contact with the electrode sheet during movement. By controlling the stroke of the driving component, the gap between the pressure roller 500 and the base 400 can be precisely adjusted to meet the rolling requirements of electrode sheets of different thicknesses.

[0042] Beneficially, this solution, through the linkage design of the movable second adjusting component 200 and the pressure roller 500, allows the position of the pressure roller 500 to be continuously adjusted during equipment operation. This solves the gap adaptation problem caused by changes in electrode thickness or rolling errors, achieving online dynamic adjustment of the pressure roller 500 gap. It can adapt to the rolling thickness requirements of different electrode specifications and, during production, control the roller gap size in a closed loop based on real-time detection data. Furthermore, the sliding connection structure between the pressure roller 500 and the base 400 effectively avoids mechanical interference during position adjustment, improving adjustment accuracy and system stability. The motion direction conversion mechanism of the second adjusting component 200 simplifies the transmission chain structure and reduces the error accumulation caused by multi-stage transmission.

[0043] According to some embodiments of this application, the second adjusting member 200 is slidably connected to the base 400, and the pressure roller 500 is rotatably connected to the second adjusting member 200.

[0044] Alternatively, in some other embodiments of this application, the base 400 is provided with a connecting seat, the connecting seat is slidably connected to the base 400, the pressure roller 500 is rotatably connected to the connecting seat, and the second adjusting member 200 is detachably connected to the connecting seat.

[0045] Specifically, in the first embodiment, the second adjusting member 200 is connected to the base 400 via a sliding joint. When the adjusting mechanism drives the second adjusting member 200 to move, the pressure roller 500 translates along the second direction with the second adjusting member 200, while the pressure roller 500 maintains its rotational capability via a rotary joint. In the second embodiment, the connecting seat serves as an intermediate carrier, its sliding connection to the base 400 enables position adjustment, the pressure roller 500 is mounted on the connecting seat via a rotary joint, and the second adjusting member 200 drives the connecting seat to move via a detachable connection. Both schemes achieve linear adjustment of the pressure roller 500's position through a sliding connection, maintain the rotational function of the pressure roller 500 through a rotary connection, and simplify the component replacement process through a detachable connection.

[0046] Beneficially, this solution, through a composite design of sliding and rotating pairs, allows the pressure roller 500 to both change position and maintain rotation during adjustment, resolving the conflict between adjustment and rolling functions. Furthermore, the detachable connection structure overcomes the limitations of traditional integrated installation, significantly improving maintenance efficiency. Through these two solutions, this application achieves real-time position adjustment of the pressure roller 500 along the second direction during production, adapting to the dynamic compensation requirements of different electrode thicknesses or rolling errors. The rotating connection between the pressure roller 500 and the adjustment mechanism avoids rotational obstruction due to position adjustment, ensuring the continuity of the rolling process. The detachable connection design allows for quick replacement of key components, reducing equipment downtime and maintenance costs.

[0047] According to some embodiments of this application, as shown in the figure, a plurality of pressure rollers 500 are spaced apart along a second direction, and a coating roller gap adjustment device 100 is provided between two adjacent pressure rollers 500.

[0048] Furthermore, both ends of the pressure roller 500 are connected to a coating roller gap adjustment device 100.

[0049] The multiple pressure rollers 500 spaced apart along the second direction refer to the multiple pressure rollers 500 arranged parallel to each other along an axis perpendicular to the first direction. This can be achieved using equidistant or non-equidistant spacing, with the spacing between adjacent pressure rollers 500 controlled by independent adjustment devices. This feature allows the gap between each pressure roller 500 to be adjusted independently, thus accommodating thickness differences in different electrode sheets. The fact that both ends of the pressure roller 500 are connected to a coating roller gap adjustment device 100 means that both ends of the pressure roller 500 are equipped with drive components. Specifically, synchronous movement can be achieved through symmetrically arranged screws or sliders. This feature ensures balanced force on both ends of the pressure roller 500, preventing tilting due to unilateral adjustment.

[0050] Understandably, when multiple pressure rollers 500 are arranged at intervals along the second direction, the adjusting devices installed between adjacent pressure rollers 500 can independently drive the corresponding pressure roller 500 to move along the second direction, thereby adjusting the gap between adjacent pressure rollers 500. For example, when it is necessary to increase the roller gap in a certain section, only the adjusting device corresponding to that section needs to be driven, without adjusting the position of other pressure rollers 500. At the same time, the adjusting devices connected to both ends of the pressure roller 500 are linked through a synchronous drive mechanism, such as using a double screw structure or a symmetrical slider guide rail, so that the two ends of the pressure roller 500 maintain consistent displacement during the adjustment process, avoiding the deflection of the pressure roller 500 axis due to unilateral displacement. When it is necessary to adjust the position of the pressure rollers 500 as a whole, multiple adjusting devices can work together to achieve dynamic closed-loop adjustment of the multi-roller system through independent or synchronous control.

[0051] Beneficially, this solution, through a combination of independent adjustment devices between adjacent pressure rollers 500 and synchronous adjustment devices at both ends of the pressure rollers 500, supports both independent zone adjustment of the multi-pressure roller 500 system and ensures the balanced movement of a single pressure roller 500. This solves the problem in existing technologies where multi-roller coordinated adjustment and single-roller stability cannot be simultaneously achieved. It realizes the independent zone adjustment capability of the multi-pressure roller 500 system, enabling adjustment of local roller gaps to meet different electrode thickness requirements. Simultaneously, the synchronous adjustment devices at both ends of the pressure rollers 500 eliminate unilateral displacement deviations, ensuring the parallelism of the pressure roller 500 axes. Furthermore, this solution supports dynamic closed-loop adjustment based on real-time detection data during production, such as automatically adjusting the spacing between adjacent pressure rollers 500 according to electrode thickness fluctuations, thereby maintaining the stability of the rolling process.

[0052] According to some embodiments of this application, the first adjusting member 120 is further provided with a third connecting part 122, which is disposed opposite to the first connecting part 121, and the second adjusting member 200 is provided with a fourth connecting part 220 that is matched and connected to the third connecting part 122, which is disposed opposite to the second connecting part 210.

[0053] The third connecting part 122 refers to the contact surface symmetrically distributed with the first connecting part 121 on the first adjusting member 120. Specifically, it can be implemented using an inclined surface structure mirror-symmetrical to the first connecting surface, forming a balanced force transmission structure through bidirectional symmetrical contact surfaces. The fourth connecting part 220 refers to the mating surface symmetrically distributed with the second connecting part 210 on the second adjusting member 200. Specifically, it can be implemented using an inclined surface structure mirror-symmetrical to the second connecting surface, forming a synchronous force-bearing structure through bidirectional symmetrical mating surfaces. The relative arrangement of the third connecting part 122 and the fourth connecting part 220 means that their contact surfaces are symmetrically distributed in space. Specifically, it can be achieved using axial symmetry or complementary angles, forming a bidirectional transmission motion constraint through symmetrical layout.

[0054] Understandably, when the first driving member 110 drives the first adjusting member 120 to move along the first direction, the contact surfaces of the first connecting part 121 and the second connecting part 210 slide, while the contact surfaces of the third connecting part 122 and the fourth connecting part 220 slide in the opposite direction. The symmetrical sliding contact surfaces on both sides decompose the linear motion in the first direction into two components of equal magnitude and direction, which together drive the second adjusting member 200 to move along the second direction. The synchronous transmission structure on both sides ensures that the second adjusting member 200 is always subjected to symmetrical thrust during the movement, avoiding the deflection torque caused by unilateral force application, thereby eliminating the lateral offset or jamming phenomenon of the pressure roller 500 during the adjustment process.

[0055] Beneficially, this solution forms a bidirectional synchronous transmission structure through the symmetrically arranged third connecting part 122 and fourth connecting part 220, which ensures that the pressure roller 500 is subjected to balanced forces on both sides during the adjustment process and maintains a linear and stable motion trajectory. This effectively overcomes the problem of uneven load caused by unilateral transmission, achieves dynamic balance of bidirectional forces during the adjustment of the pressure roller 500 gap, and solves the problems of insufficient adjustment accuracy and poor equipment stability caused by unilateral force application. It ensures that the pressure roller 500 always maintains an axial alignment during continuous dynamic adjustment, improving the adjustment accuracy of the roller gap and the reliability of equipment operation.

[0056] According to some embodiments of this application, the third connecting portion 122 is the third connecting surface on the first adjusting member 120, and the third connecting surface is mirrored with the first connecting surface.

[0057] Alternatively, in some other embodiments, the third connecting portion 122 is the third connecting surface on the first adjusting member 120, and the angles between the third connecting surface, the first connecting surface and the axis of the first adjusting member 120 are different.

[0058] Understandably, when the third connecting surface is mirrored with the first connecting surface, the two connecting surfaces are symmetrically distributed on both sides of the axis. When the first adjusting member 120 moves along the first direction, the two connecting surfaces simultaneously push the second adjusting member 200 to move along the second direction. The thrust on both sides is equal in magnitude and symmetrical in direction, preventing the pressure roller 500 from tilting due to unilateral force during adjustment. When the third connecting surface and the first connecting surface adopt different angles, the tilt angles of the two connecting surfaces are different. For example, the angle between the first connecting surface and the axis is 30 degrees, and the angle between the third connecting surface and the axis is 45 degrees. In this case, when the first adjusting member 120 moves the same distance, the displacement of the second adjusting member 200 on both sides is different, thereby achieving differentiated adjustment of the two ends or adjacent pressure rollers 500. This solution solves the mechanism stability problem caused by unilateral force application by using a symmetrical connection surface design to achieve uniform force distribution or by using asymmetrical angles to achieve differentiated adjustment. At the same time, it expands the applicability of the adjustment function and can improve the structural stability when multiple pressure rollers 500 or the two ends of pressure rollers 500 are adjusted synchronously, avoiding the skew of pressure rollers 500 or wear of transmission components caused by uneven force. In addition, the differentiated angle design allows for a flexible combination of coarse and fine adjustment to meet the diverse needs for adjustment accuracy and efficiency under different working conditions.

[0059] This application further proposes a dry coating machine that utilizes the aforementioned roller pressing equipment.

[0060] When the drive unit is activated, the first adjusting member 120 generates a linear displacement along a first direction, and converts the direction of motion to a second direction through the mutually fitting inclined connecting surfaces, pushing the second adjusting member 200 to drive the pressure roller 500 to adjust its vertical position. With adjusting devices simultaneously installed at both ends of the pressure roller 500, the third and fourth connecting surfaces on both sides form a symmetrical force-bearing structure, effectively offsetting the torque deviation generated by unilateral movement. The independently installed adjusting devices among the multiple pressure rollers 500 can control the gap between each pressure roller 500, while the sliding fit structure between the connecting seat and the base 400 maintains the rotational freedom of the pressure roller 500 while achieving position adjustment.

[0061] Beneficially, this solution combines programmable drive components with motion conversion mechanisms, enabling real-time adjustment of the roller gap during production. Furthermore, the inclined surface structure offers higher positional accuracy compared to gear transmission, solving the problem of poor production flexibility caused by the non-adjustable roller gap in dry coating machines. It achieves dynamic adaptation capability for electrode sheets of different thicknesses and can correct the position of the pressure roller 500 in real time based on detection data during continuous production. At the same time, the multi-point independent adjustment mechanism ensures the uniformity of the roller gap, avoiding electrode sheet thickness fluctuations caused by local pressure anomalies.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0063] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A coating roller gap adjustment device, characterized in that, include: The adjustment mechanism includes a first driving member (110) and a first adjusting member (120). The first driving member (110) is connected to the first adjusting member (120). The first driving member (110) can drive the first adjusting member (120) to reciprocate along a first direction. The first adjusting member (120) is provided with a first connecting part (121). The second adjusting member (200) is disposed on the same side as the first connecting part (121). The second adjusting member (200) is provided with a second connecting part (210). The second connecting part (210) is movably connected to the first connecting part (121). When the first driving member (110) drives the first adjusting member (120) to reciprocate along the first direction, the first adjusting member (120) can drive the second adjusting member (200) to reciprocate along the second direction.

2. The coating roller gap adjustment device according to claim 1, characterized in that, One end of the first adjusting member (120) is provided with an inclined first connecting surface to form the first connecting part (121), and the second adjusting member (200) is provided with an inclined second connecting surface to form the second connecting part (210). The first connecting surface and the second connecting surface are matched and slidably connected. or, The first adjusting member (120) includes a first fixing block and a first connecting block. The first fixing block and the first connecting block are detachably connected. One end of the first connecting block is provided with an inclined first connecting surface to form the first connecting portion (121). The second adjusting member (200) includes a second fixing block and a second connecting block. The second fixing block and the second connecting block are detachably connected. One end of the second connecting block is provided with an inclined second connecting surface to form the second connecting portion (210). The first connecting surface and the second connecting surface are matched and slidably connected.

3. The coating roller gap adjusting device according to claim 1, characterized in that, The adjustment mechanism further includes a transmission assembly (300), the output end of the first driving member (110) is connected to the transmission assembly (300), and the first adjusting member (120) is connected to the transmission assembly (300).

4. The coating roller gap adjusting device according to claim 3, characterized in that, The transmission assembly (300) includes a mounting base (310) and an adjusting screw (320). The adjusting screw (320) is connected to the mounting base (310). The output end of the first driving member (110) is connected to one end of the adjusting screw (320), and the first adjusting member (120) is connected to the other end of the adjusting screw (320). or, The transmission assembly (300) includes a mounting base (310), a first guide rail and a first slider. One of the mounting base (310) and the first adjusting member (120) is connected to the first guide rail, and the other of the mounting base (310) and the first adjusting member (120) is connected to the first slider. The output end of the first driving member (110) is connected to the first adjusting member (120).

5. A roller pressing device, comprising the coating roller gap adjusting device (100), base (400), and pressure roller (500) as described in any one of claims 1 to 4, characterized in that: The pressure roller (500) is connected to the base (400), and the pressure roller (500) is connected to the second adjusting member (200). The second adjusting member (200) can drive the pressure roller (500) to reciprocate along the second direction so that the pressure roller (500) can be adjusted on the base (400).

6. The roller pressing equipment according to claim 5, characterized in that, The second adjusting member (200) is slidably connected to the base (400), and the pressure roller (500) is rotatably connected to the second adjusting member (200); or, The base (400) is provided with a connecting seat, the connecting seat is slidably connected to the base (400), the pressure roller (500) is rotatably connected to the connecting seat, and the second adjusting member (200) is detachably connected to the connecting seat.

7. The roller pressing equipment according to claim 5, characterized in that, The plurality of pressure rollers (500) are spaced apart along the second direction, and the coating roller gap adjustment device (100) is provided between two adjacent pressure rollers (500). And / or, Both ends of the pressure roller (500) are connected to the coating roller gap adjustment device (100).

8. The roller pressing equipment according to claim 7, characterized in that, The first adjusting member (120) is further provided with a third connecting part (122), which is disposed opposite to the first connecting part (121). The second adjusting member (200) is provided with a fourth connecting part (220) that matches and connects with the third connecting part (122), which is disposed opposite to the second connecting part (210).

9. The roller pressing equipment according to claim 8, characterized in that, The third connecting part (122) is the third connecting surface on the first adjusting member (120), and the third connecting surface is mirrored with the first connecting part (121); or, The third connecting part (122) is the third connecting surface on the first adjusting member (120), and the included angles between the third connecting surface, the first connecting part (121) and the axis of the first adjusting member (120) are different.

10. A dry coating machine, characterized in that, Includes the roller pressing equipment as described in any one of claims 5 to 9.

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