Transfer type pole piece coating machine with solvent spraying function

Abstract

The utility model discloses a pole piece coating machine with a solvent spraying function, which comprises a trough, a coating roller for transferring slurry in the trough to the surface of a current collector, a spraying device and a linkage device, and the spraying device is used for spraying a slurry transfer path formed by the coating roller. The linkage device is in transmission connection with a switching unit for controlling the on-off state of the spraying device and comprises a transmission shaft in transmission connection with the coating roller through gear meshing, the transmission shaft is in transmission connection with the spring assembly, and the switching unit is switched to the closed state in the rotating process of the coating roller. The spring assembly converts kinetic energy provided by the transmission shaft into elastic potential energy in the rotating process of the coating roller and releases the elastic potential energy when the coating roller stops to drive the switching unit to be switched to the open state, and spraying of a slurry transfer path is achieved. The drying and caking of the water-based slurry due to solvent volatilization when the coating is suspended are avoided, and the coating efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of coating equipment technology, specifically, it relates to a transfer electrode coating machine with solvent spraying function. Background Technology

[0002] Coating is a crucial step in electrode preparation, directly affecting the performance and consistency of the electrode. To ensure successful coating of aqueous slurry, existing coating machines are equipped with solvent replenishment components to add solvent to the slurry tank, thus controlling the concentration of the aqueous slurry. However, adding solvent to the slurry tank only ensures that the slurry in the tank will not dry and clump due to solvent evaporation, but it cannot prevent solidification during the slurry transfer process. Especially when coating is paused for sampling, because the aqueous slurry adhering to the coating roller surface is thinner, the solvent evaporates faster, and clumping will occur in a short time, causing coating to be unable to continue, directly affecting the efficiency and consistency of electrode preparation.

[0003] In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to solve one of the problems in the prior art mentioned above, and to provide a transfer coating machine with solvent spraying function. The coating machine has a coating roller that transfers slurry from the material tank to the surface of the collector, and a spraying device that sprays the slurry transfer path formed by the coating roller. The linkage between the coating roller and the spraying device is realized by setting a linkage device, which can realize the automatic operation of the spraying device when coating is paused, effectively preventing the slurry located on the coating transfer path from solidifying due to solvent evaporation.

[0005] To achieve the above objectives, this utility model provides a transfer electrode coating machine with solvent spraying function, including a material tank, a coating roller for transferring slurry in the material tank to the surface of the current collector, a spraying device, and a linkage device. The spraying device is used to spray the slurry transfer path formed by the coating roller. The linkage device includes a spring assembly that drives the coating roller and the spraying device. When the coating roller rotates, the spraying device is turned off. When the coating roller stops rotating, the elastic potential energy stored in the spring assembly is released to drive the spraying device to spray.

[0006] In the above scheme, the conversion of kinetic energy and elastic potential energy is realized by using a spring assembly. It can store elastic potential energy when the coating roller rotates and release elastic potential energy to drive the spray assembly to start when the coating roller stops. The state of the spray assembly is controlled by mechanical transmission, which has higher reliability.

[0007] Furthermore, the coating roller is provided with a second transmission gear on its roller shaft, and the linkage device includes a transmission shaft and a first transmission gear that cooperates with the second transmission gear. The first transmission gear and the spring assembly are respectively connected to the transmission shaft, and the spring assembly or the transmission shaft is connected to the spraying device for transmission.

[0008] Furthermore, a first resistance unit is provided between the first transmission gear and the transmission shaft. The first resistance unit is used to increase the friction between the transmission shaft and the first transmission gear, so that the transmission shaft and the first transmission gear rotate synchronously when the coating roller rotates.

[0009] The frictional force provided by the first resistance unit is less than the reaction force provided when the mainspring is wound to its limit.

[0010] In the above scheme, since the frictional force provided by the first resistance unit is less than the reaction force provided when the mainspring is tightened to its limit, the frictional force provided by the first resistance unit can achieve synchronous rotation of the first transmission gear and the transmission shaft when the mainspring is not fully tightened, ensuring the mainspring is tightened. When the mainspring is fully tightened, the transmission shaft and the mainspring assembly can rotate relative to each other, preventing the mainspring from being damaged by further tightening. When the coating roller stops, the mainspring assembly releases elastic potential energy to drive the transmission shaft to rotate. Although the frictional force provided by the first resistance unit gradually becomes greater than the reaction force of the mainspring as the mainspring gradually regains its freedom, the mainspring can still drive the transmission shaft to rotate to a certain extent under the action of inertia, thus turning on the spray assembly.

[0011] Furthermore, a rotating component is provided between the first transmission gear and the transmission shaft. The first transmission gear is detachably connected to the rotating component and is rotatably connected to the transmission shaft through the rotating component. The first resistance unit is located between the rotating component and the transmission shaft.

[0012] In the above scheme, the presence of the rotating component enables a detachable connection between the first transmission gear and the transmission shaft, facilitating maintenance and replacement of the linkage device by technicians.

[0013] Furthermore, the mainspring assembly includes a mainspring body, a housing, and a mainspring shaft. The two ends of the mainspring body are connected to the housing and the mainspring shaft, respectively, and the mainspring shaft is connected to the drive shaft for transmission.

[0014] Furthermore, the mainspring shaft is connected to the spray device via a transmission. A second resistance unit is provided between the mainspring shaft and the transmission shaft. The second resistance unit is used to achieve synchronous rotation of the mainspring shaft and the transmission shaft through friction. The friction provided by the second resistance unit is less than the reaction force provided when the mainspring is wound to its limit.

[0015] In the above scheme, the presence of the second resistance unit can prevent damage caused by the mainspring continuing to be driven by the drive shaft when it is wound to its limit.

[0016] Furthermore, the second resistance unit includes an annular resistance groove provided on one of the mainspring shaft and the drive shaft, and a protrusion provided on the other. The annular resistance groove has a first sidewall whose plane is perpendicular to the drive shaft, a second sidewall whose distance from the first sidewall gradually decreases along the circumference of the drive shaft, and a third sidewall connecting the two ends of the second sidewall. The included angle between the third sidewall and the second sidewall is an acute angle.

[0017] The protrusion is movably disposed along the drive shaft axis in the axial direction, at least partially extending between the first sidewall and the second sidewall, and always tends to move closer to the second sidewall.

[0018] Furthermore, the second resistance unit also includes a clearance groove provided on the mainspring shaft or drive shaft along the axial direction, the protrusion portion is accommodated in the clearance groove, and the clearance groove is also provided with a spring for driving the protrusion to move closer to the second side wall.

[0019] In the above scheme, the protrusion always moves towards the second sidewall. The friction between the protrusion and the second sidewall enables the transmission connection between the mainspring shaft and the drive shaft. As the mainspring is tightened, the reaction force gradually increases, and the protrusion moves from the end of the second sidewall away from the first sidewall to the end of the second sidewall closer to the first sidewall. During the movement, the compression of the spring gradually increases, correspondingly increasing the friction between the second sidewall and the protrusion, ensuring the transmission stability between the drive shaft and the mainspring shaft. As the mainspring continues to tighten, the protrusion can pass over the second sidewall and approach the first sidewall, thereby realizing the relative rotation between the mainspring shaft and the drive shaft. After the coating roller stops, the mainspring returns to freedom. Due to the presence of the third sidewall, the protrusion abuts against the third sidewall, enabling the mainspring shaft and the drive shaft to rotate synchronously. Furthermore, the first resistance unit prevents the first transmission gear from rotating synchronously with the drive shaft, thus releasing the elastic potential energy of the mainspring while keeping the coating roller stationary, and turning on the spray assembly.

[0020] Furthermore, the drive shaft is provided with an annular limiting groove for limiting the center of the mainspring shaft, and an annular resistance groove is located inside the annular limiting groove, with the center of the mainspring shaft at least partially embedded in the annular limiting groove.

[0021] Furthermore, the spraying device includes a conveying pipe for conveying spray liquid, and a switching unit is provided on the conveying pipe. The switching unit has a first position for cutting off the conveying pipe and a second position for opening the conveying pipe. A linkage device is connected to the switching unit in a transmission manner, driving the switching unit to move to the first position when the coating roller rotates, and driving the switching unit to move to the second position when the coating roller stops.

[0022] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0023] 1. The mechanical linkage between the spraying device and the coating roller is achieved through the linkage device. When the coating roller is paused, the spraying device is automatically turned on by the linkage device, realizing automatic spraying of the slurry transfer path. This effectively avoids the water-based slurry from solidifying due to solvent evaporation, ensuring continuous and stable coating.

[0024] 2. The first resistance unit and the second resistance unit respectively adjust the transmission state between the drive shaft and the first drive gear, as well as between the drive shaft and the mainspring shaft, thus preventing damage caused by over-tightening of the mainspring. The first resistance unit and the second resistance unit can be set up separately or exist simultaneously, which improves the design flexibility of the electrode coating machine. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the linkage structure of the coating roller, spraying device and driving device in the transfer electrode coating machine with solvent spraying function described in this utility model;

[0026] Figure 2 This is an exploded view of the linkage device described in Embodiment 1;

[0027] Figure 3 This is an exploded view of the linkage device described in Embodiment 2;

[0028] Figure 4 yes Figure 3 The front view of the drive shaft in the linkage device shown;

[0029] Figure 5 yes Figure 3 A cross-sectional view of the mainspring shaft in the linkage device shown.

[0030] In the diagram: 1. Coating roller; 11. Roller shaft; 12. Second transmission gear; 2. Spraying device; 21. Nozzle; 22. Switching unit; 23. Conveying pipe; 3. Linkage device; 31. Drive shaft; 311. Annular groove; 312. Annular resistance groove; 3121. First sidewall; 3122. Second sidewall; 313. Annular limiting groove; 32. First transmission gear; 33. Spring assembly; 331. Spring shaft; 3311. Protrusion; 3312. Spring; 3313. Clearance groove; 332. Spring body; 333. Housing; 4. Rotating component. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0032] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation 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.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] This utility model provides a transfer electrode coating machine with solvent spraying function, such as Figures 1 to 5 As shown, the device includes a trough, a coating roller 1 that transfers the slurry in the trough to the surface of the collector, a spraying device 2, and a linkage device 3. The spraying device 2 is used to spray the slurry transfer path formed by the coating roller 1. The linkage device 3 includes a spring assembly 33. The linkage device 3 drives the coating roller 1 and the spraying device 2 through the spring assembly 33. It is used to drive the spraying device 2 to close when the coating roller 1 rotates, and to release the elastic potential energy stored in the spring assembly 33 to drive the spraying device 2 to open when the coating roller 1 stops rotating.

[0035] During the coating process, the coating roller 1 rotates continuously, and the linkage device 3 drives the spray device 2 to remain closed. The kinetic energy of the coating roller 1 rotation is stored as elastic potential energy through the spring assembly 33. When coating is paused for sampling, the spring assembly 33 releases the elastic potential energy to drive the spray device to switch to the open state. The spray device sprays the slurry transfer path, which increases the solvent concentration around the slurry transfer path, thereby reducing the evaporation rate of the solvent in the slurry and preventing the slurry on the slurry transfer path from solidifying due to solvent evaporation, thus ensuring the smooth progress of coating.

[0036] The above process is achieved entirely by mechanical structure, which realizes the linkage between spray device 2 and coating roller 1, fully meeting the needs of water-based slurry coating, and the electrode coating machine has higher reliability and is easier to maintain.

[0037] As a specific embodiment of this utility model, such as Figure 1As shown, the spraying device 2 includes a conveying pipe 23 for conveying spray liquid. One end of the conveying pipe 23 is connected to the nozzle 21, and the other end of the conveying pipe 23 is connected to the spray liquid storage unit. The conveying pipe 23 is provided with a switching unit 22 for adjusting the on / off state of the conveying pipe 23. The switching unit 22 has a first position for cutting off the conveying pipe 23 and a second position for opening the conveying pipe 23. The spraying device 2 is turned on and off by changing the position of the switching unit 22. The linkage device 3 is connected to the switching unit 22 for transmission. When the coating roller 1 rotates, the switching unit 22 is driven to move to the first position, and when the coating roller 1 is paused, the switching unit 22 is driven to move to the second position.

[0038] The switching unit 22 can be a device with on / off control function commonly used in the art, such as a butterfly valve or a ball valve. The transmission connection between the linkage device 3 and the switching unit 22 can also be a conventional method in the art, such as through crank drive, chain drive, belt drive, etc. The transmission method can be adapted to the specific structure of the switching unit 22. In the following embodiment, the switching unit 22 is a movable valve connected in series in the delivery pipe 23 as an example for illustrative purposes. The valve has a movable valve plate with a first position that completely covers the cross section of the delivery pipe 23 and a second position that allows the delivery pipes 23 on both sides of the valve plate to be connected. A torsion spring is also provided at the rotation shaft of the valve plate, and the torsion spring continuously provides a force for the valve plate to rotate toward the second position.

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0040] Example 1

[0041] As an embodiment of the present invention, this embodiment provides a transfer electrode coating machine with solvent spraying function, wherein the linkage device 3 is connected to the coating roller 1 through gear transmission.

[0042] In this embodiment, the linkage device 3 includes a drive shaft 31 and a first drive gear 32 disposed on the drive shaft 31. A second drive gear 12 is correspondingly disposed on the roller shaft 11 of the coating roller 1. The first drive gear 32 and the second drive gear 12 mesh with each other. The spring assembly 33 is connected to the drive shaft 31 in a driving connection. The switching unit 22 is connected to the drive shaft 31 in a driving connection. That is, in this embodiment, only the first drive gear 32 and the second drive gear 12 have a direct contact relationship in the linkage device 3.

[0043] Specifically, such as Figure 1 and Figure 2As shown, the mainspring assembly 33 includes a mainspring body 332, a mainspring shaft 331, and a housing 333. The mainspring shaft 331 and the housing 333 are respectively provided with protrusions for fixing the mainspring body 332. The two ends of the mainspring body 332 are respectively provided with fixing holes that cooperate with the protrusions. The mainspring body 332 is connected to the mainspring shaft 331 and the housing 333 through the cooperation of the fixing holes and the protrusions. The housing 333 is fixed on the housing of the electrode coating machine. The protrusions can be set as cylindrical or prismatic according to the actual situation, and the cross-sectional size gradually decreases along the direction close to the mainspring shaft 331 and the housing 333 to prevent the mainspring body 332 from falling off.

[0044] In this embodiment, a protrusion is provided on the transmission shaft 31, which serves as the spring shaft 331. The transmission shaft 31 has a drive wheel that rotates synchronously with it. The drive wheel is connected to the valve plate via a flexible drive rope. When the coating roller 1 rotates, the transmission shaft 31 rotates, and the drive rope pulls the valve plate as the drive wheel rotates, causing the valve plate in the switching unit 22 to move to the first position to close the spray device. At the same time, elastic potential energy is stored through the spring assembly 33. When sampling is required, the coating roller 1 stops, the spring assembly 33 releases the stored elastic potential energy, and the transmission shaft rotates in the opposite direction under the drive of the spring assembly 33. At this time, the drive rope releases the valve plate, and the valve plate returns to the second position under the action of the torsion spring, thus opening the spray device 2.

[0045] A first resistance unit is also provided between the first transmission gear 32 and the transmission shaft 31. The first resistance unit is used to increase the friction between the transmission shaft 31 and the first transmission gear 32. The friction provided by the first resistance unit is less than the reaction force provided when the mainspring assembly 33 is tightened to its limit. That is, the first transmission gear 32 and the transmission shaft 31 are not fixedly connected, but achieve relative stillness through the friction provided by the first resistance unit, and then the transmission is connected. When the mainspring assembly 33 is not fully tightened, the friction is greater than the reaction force, and the first transmission gear 32 and the transmission shaft 31 keep rotating synchronously. The mainspring assembly 33 continues to be tightened. When the mainspring assembly 33 is fully tightened, the reaction force is greater than the friction, and the transmission shaft 31 remains stationary relative to the first transmission gear 32 under the influence of the reaction force. In addition, the first resistance unit can prevent the drive rope from being over-tightened and breaking, and also prevent the valve plate from being damaged by force.

[0046] This solution can, on the one hand, prevent damage caused by the continued drive of the transmission shaft 31 after the mainspring assembly 33 is fully wound, and on the other hand, when the mainspring assembly 33 releases its elastic potential energy, it can achieve relative rotation between the transmission shaft 31 and the first transmission gear 32, so that the coating roller 1 will not be driven by the mainspring assembly 33 to rotate. After the transmission shaft 31 rotates relative to the first transmission gear 32, it always maintains rotational inertia. Even when the reaction force of the mainspring assembly 33 is slightly less than the friction between the first transmission gear 32 and the coating roller 1, a certain relative rotation can still be generated between them under the action of inertia, so as to ensure that the switching unit 22 is fully driven and moves smoothly to the second position.

[0047] Furthermore, a rotating component 4 is provided between the first transmission gear 32 and the transmission shaft 31. The rotating component 4 is sleeved on the surface of the transmission shaft 31 and is rotatably configured relative to the transmission shaft 31. A first resistance unit is provided between the transmission shaft 31 and the rotating component 4. The first transmission gear 32 is detachably connected to the rotating component 4. An annular groove 311 is formed on the drive shaft. The rotating component 4 is embedded in the annular groove 311. The first resistance unit includes spherical protrusions on both sides of the rotating component 4 and spherical grooves on the sidewalls of the annular groove 311 corresponding to the spherical protrusions. Due to the presence of the rotating component 4, the disassembly and separation between the first transmission gear 32 and the transmission shaft 31 can be realized more conveniently, significantly improving the ease of disassembly and maintenance.

[0048] Example 2

[0049] As another embodiment of this utility model, this embodiment provides a transfer electrode coating machine with solvent spraying function, which differs from the first embodiment in that the structure of the linkage device 3 is different.

[0050] In this embodiment, the linkage device 3 includes a drive shaft 31 and a first drive gear 32 disposed on the drive shaft 31. A second drive gear 12 is correspondingly disposed on the roller shaft 11 of the coating roller 1. The first drive gear 32 and the second drive gear 12 mesh with each other. The spring assembly 33 is connected to the drive shaft 31. A second resistance unit is also disposed between the spring assembly 33 and the drive shaft 31. The switching unit 22 is connected to the spring assembly 33.

[0051] like Figure 3 As shown, the mainspring assembly 33 has a mainspring shaft 331 that is independently set apart from the drive shaft 31. The switching unit 22 is connected to the mainspring shaft 331 of the mainspring assembly 33. A second resistance unit is provided between the mainspring shaft 331 and the drive shaft 31. The mainspring shaft 331 and the drive shaft 31 are connected by the friction between them provided by the second resistance unit. The friction provided by the second resistance unit is less than the reaction force provided when the mainspring assembly 33 is wound to its limit.

[0052] Specifically, in this embodiment, the mainspring shaft 331 is hollow and sleeved on the outside of the transmission shaft 31. The transmission wheel is mounted on the mainspring shaft 331, realizing the transmission connection between the valve plate and the mainspring shaft 331. Figure 4 As shown, the second resistance unit includes an annular resistance groove 312 disposed on the drive shaft 31. The annular resistance groove 312 has a first sidewall 3121, the plane of which the first sidewall 3121 is perpendicular to the drive shaft 31, and a second sidewall 3122 disposed opposite to the first sidewall 3121. The distance between the second sidewall 3122 and the first sidewall 3121 gradually increases along the circumference of the drive shaft 31, that is, the projection trajectory of the second sidewall 3122 on the drive shaft 31 is a spiral line. Figure 5 As shown, the second resistance unit also includes a protrusion 3311 disposed on the mainspring shaft 331 and cooperating with the annular resistance groove 312. The mainspring shaft 331 has a relief groove 3313 disposed along the axial direction of the drive shaft 31. The protrusion 3311 is partially accommodated in the relief groove 3313 and is movably disposed relative to the relief groove 3313. The relief groove 3313 has a spring 3312 disposed along the axial direction of the drive shaft 31. The spring 3312 is always in a compressed state and always provides a force for the protrusion 3311 to move towards the second sidewall 3122.

[0053] When the coating roller 1 rotates, the first transmission gear 32 and the second transmission gear 12 drive the transmission shaft 31 to rotate in a direction where the distance between the first sidewall 3121 and the second sidewall 3122 gradually increases. The friction between the second sidewall 3122 and the protrusion 3311 drives the mainspring shaft 331 to rotate synchronously with the transmission shaft 31, driving the valve plate to gradually move to the first position. As the mainspring assembly 33 is tightened, the force between the second sidewall 3122 and the protrusion 3311 increases. Guided by the inclined surface of the second sidewall 3122, the protrusion 3311 gradually moves closer to the first sidewall 3121. The force of the spring 3312 on the protrusion 3311 also increases accordingly, always maintaining the connection between the transmission shaft 31 and the mainspring. The transmission connection of the shaft 331: When the spring assembly 33 is tightened to its limit, because the reaction force provided by the spring assembly 33 is greater than the friction force provided by the second resistance unit, the protrusion 3311 slides relative to the second sidewall 3122 along the second sidewall 3122, and the transmission connection between the spring shaft 331 and the transmission shaft 31 is released. At this time, the transmission shaft 31 continues to rotate while the spring shaft 331 remains stationary, effectively avoiding damage to the spring assembly 33 due to over-tightening, and also avoiding damage to the valve plate and transmission rope due to excessive force; When the coating roller 1 stops rotating, under the influence of the reaction force of the spring assembly 33, the spring shaft 331 rotates in the opposite direction, and the valve moves to the second position under the action of the torsion spring to open the spraying device.

[0054] Furthermore, since the two ends of the second sidewall 3122 are offset, a third sidewall is formed connecting the two ends of the second sidewall 3122. When the mainspring shaft 331 rotates in the reverse direction, the protrusion 3311 moves along the second sidewall 3122 toward the end of the second sidewall 3122 away from the first sidewall 3121, and finally abuts against the third sidewall, so that the mainspring shaft 331 and the drive shaft 31 rotate synchronously. This will cause the coating roller 1 to rotate in the reverse direction under the drive of the mainspring assembly 33. In order to avoid this problem, in other embodiments, the second resistance unit can also be set in other forms. For example, it can be a spherical protrusion provided on one of the surfaces of the mainspring shaft 331 and the drive shaft 31, and a spherical groove provided on the other surface to cooperate with it. In this way, the independent rotation of the mainspring shaft 331 can be achieved whether the mainspring assembly 33 is tightened or when the mainspring assembly 33 returns to the free state.

[0055] In order to avoid relative displacement between the drive shaft 31 and the mainspring shaft 331 in the axial direction, as a specific embodiment of the present invention, the drive shaft 31 is also provided with an annular limiting groove 313 and an annular resistance groove 312 formed at the bottom of the annular limiting groove 313, so that the mainspring shaft 331 is at least partially embedded in the limiting groove.

[0056] Alternatively, as another specific embodiment of this utility model, a first resistance unit as described in Embodiment 1 is provided between the first transmission gear 32 and the transmission shaft 31. When the transmission shaft 31 rotates under the reaction force of the spring assembly 33, the first resistance unit prevents the synchronous rotation of the first transmission gear 32 and the transmission shaft 31, and also prevents the coating roller 1 from rotating in the opposite direction.

[0057] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A transfer-type electrode coating machine with solvent spraying function, characterized in that, The device includes a trough, a coating roller (1) that transfers the slurry in the trough to the surface of the collector, a spraying device (2), and a linkage device (3). The spraying device (2) is used to spray the slurry transfer path formed by the coating roller (1). The linkage device (3) includes a spring assembly (33), which drives the coating roller (1) and the spraying device (2). When the coating roller (1) rotates, the spraying device (2) is turned off. When the coating roller (1) stops rotating, the elastic potential energy stored in the spring assembly (33) is released to drive the spraying device (2) to spray.

2. The transfer electrode coating machine with solvent spraying function according to claim 1, characterized in that, The coating roller (1) has a second transmission gear (12) on its roller shaft (11). The linkage device (3) includes a transmission shaft (31) and a first transmission gear (32) that cooperates with the second transmission gear (12). The first transmission gear (32) and the spring assembly (33) are respectively connected to the transmission shaft (31). The spring assembly (33) or the transmission shaft (31) is connected to the spraying device (2) for transmission.

3. The transfer electrode coating machine with solvent spraying function according to claim 2, characterized in that, A first resistance unit is also provided between the first transmission gear (32) and the transmission shaft (31). The first resistance unit is used to increase the friction between the transmission shaft (31) and the first transmission gear (32), so that the transmission shaft (31) and the first transmission gear (32) rotate synchronously when the coating roller (1) rotates. The frictional force provided by the first resistance unit is less than the reaction force provided when the spring assembly (33) is tightened to its limit.

4. The transfer electrode coating machine with solvent spraying function according to claim 3, characterized in that, A rotating component (4) is also provided between the first transmission gear (32) and the transmission shaft (31). The first transmission gear (32) and the rotating component (4) are detachably connected. The rotating component (4) is rotatably connected to the transmission shaft (31). The first resistance unit is located between the rotating component (4) and the transmission shaft (31).

5. The transfer electrode coating machine with solvent spraying function according to any one of claims 2-4, characterized in that, The mainspring assembly (33) includes a mainspring body (332), a housing (333) and a mainspring shaft (331). The two ends of the mainspring body (332) are connected to the housing (333) and the mainspring shaft (331) respectively. The mainspring shaft (331) is connected to the drive shaft (31) for transmission.

6. The transfer electrode coating machine with solvent spraying function according to claim 5, characterized in that, The mainspring shaft (331) is connected to the spray device (2) for transmission. A second resistance unit is provided between the mainspring shaft (331) and the drive shaft (31). The second resistance unit is used to realize the synchronous rotation of the mainspring shaft (331) and the drive shaft (31) through friction. The friction provided by the second resistance unit is less than the reaction force provided when the mainspring assembly (33) is tightened to the limit.

7. The transfer electrode coating machine with solvent spraying function according to claim 6, characterized in that, The second resistance unit includes an annular resistance groove (312) provided on one of the mainspring shaft (331) and the drive shaft (31), and a protrusion (3311) provided on the other. The annular resistance groove (312) has a first sidewall (3121) whose plane is perpendicular to the drive shaft (31), a second sidewall (3122) whose distance from the first sidewall (3121) gradually decreases along the circumference of the drive shaft (31), and a third sidewall connecting the two ends of the second sidewall (3122). The included angle between the third sidewall and the second sidewall (3122) is an acute angle. The protrusion (3311) is movably disposed along the drive shaft (31) in the axial direction, at least partially extending between the first sidewall (3121) and the second sidewall (3122), and always has a tendency to move closer to the second sidewall (3122).

8. The transfer electrode coating machine with solvent spraying function according to claim 7, characterized in that, The second resistance unit also includes a relief groove (3313) provided on the spring shaft (331) or the drive shaft (31) in the axial direction. The protrusion (3311) is partially accommodated in the relief groove (3313). The relief groove (3313) is also provided with a spring (3312) for driving the protrusion (3311) to move closer to the second side wall (3122).

9. The transfer electrode coating machine with solvent spraying function according to claim 7, characterized in that, The drive shaft (31) is provided with an annular limiting groove (313) for limiting the mainspring shaft (331), and an annular resistance groove (312) is located in the annular limiting groove (313). The mainspring shaft (331) is at least partially embedded in the annular limiting groove (313).

10. The transfer electrode coating machine with solvent spraying function according to any one of claims 1-9, characterized in that, The spraying device (2) includes a conveying pipe (23) for conveying spray liquid. A switching unit (22) is provided on the conveying pipe (23). The switching unit (22) has a first position for cutting off the conveying pipe (23) and a second position for opening the conveying pipe (23). The linkage device (3) is connected to the switching unit (22) in a transmission manner. When the coating roller (1) rotates, the switching unit (22) is driven to move to the first position. When the coating roller (1) stops, the switching unit (22) is driven to move to the second position.

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