A foil wrinkle removal mechanism and coating device

Abstract

This utility model discloses a foil wrinkle removal mechanism and a coating device, belonging to the technical field of coating devices. The foil wrinkle removal mechanism includes a work stand and multiple wrinkle removal rollers. The wrinkle removal rollers are rotatably connected to the work stand, and multiple wrinkle removal rollers are spaced apart along the Y direction on the work stand. In the transmission direction from the coating mechanism to the drying mechanism, the height of each wrinkle removal roller in the Z direction gradually increases. This foil wrinkle removal mechanism allows the foil wound from the coating mechanism to sequentially wind around the wrinkle removal rollers with gradually increasing heights in an upward-climbing conveyor belt manner before horizontally entering the drying mechanism. This ensures that the foil is not easily wrinkled during conveyor belt transport and simultaneously smooths out wrinkles on the foil, thereby ensuring the flatness of the foil during transport.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, and in particular to a foil wrinkle removal mechanism and coating device. Background Technology

[0002] In the battery production process, after the foil is coated by the coating mechanism, it needs to be transferred to the drying mechanism for heating and drying to dry the coating layer on the foil. In order to ensure the uniformity of the coating layer on the foil during the transfer, the drying mechanism is usually set at a higher height than the coating mechanism in the vertical direction along the Z direction. That is, there is a height difference between the coating mechanism and the drying mechanism. When the foil is directly pulled up from the coating mechanism to the drying mechanism, the foil is prone to wrinkling, and the flatness of the foil cannot be guaranteed during the transfer.

[0003] To address the above problems, there is an urgent need for a foil wrinkle removal mechanism and coating device. Utility Model Content

[0004] The purpose of this invention is to provide a foil wrinkle removal mechanism and coating device, which makes the foil less prone to wrinkling during the upward climbing conveyor belt process, and can smooth out the wrinkles on the foil through each wrinkle removal roller, so as to ensure the flatness of the foil during the transmission process.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A foil wrinkle removal mechanism, disposed between a coating mechanism and a drying mechanism, includes:

[0007] work stand;

[0008] A wrinkle-removing roller is rotatably connected to the work stand. Multiple wrinkle-removing rollers are spaced apart along the Y direction on the work stand. In the transmission direction from the coating mechanism to the drying mechanism, the setting height of each wrinkle-removing roller in the Z direction gradually increases.

[0009] As an optional feature, the spacing between any two adjacent wrinkle-removing rollers is equal along the Z direction, and the spacing between any two adjacent wrinkle-removing rollers is 15mm to 30mm.

[0010] As an optional solution, the number of wrinkle-removing rollers is 3 to 5.

[0011] As an optional solution, the outer peripheral surface of the wrinkle-removing roller is provided with a threaded groove, and the side of the foil opposite to the coating layer moves to contact the threaded groove so that the middle part of the foil flattens outwards to the opposite two sides.

[0012] As an optional feature, the acute angle between the threaded groove and the axis of the wrinkle-removing roller is 15° to 20°.

[0013] As an optional solution, the foil wrinkle removal mechanism further includes:

[0014] The mounting bracket includes a first bracket and a second bracket arranged opposite to each other along the X direction. The opposite ends of the wrinkle-removing roller are respectively rotatably connected to the first bracket and the second bracket around the X direction. The first bracket is slidably connected to the work stand along the X direction and / or the Y direction, and the second bracket is slidably connected to the work stand along the X direction and / or the Y direction.

[0015] A reinforcing rod is provided, at least one of which is connected between the first bracket and the second bracket, and the reinforcing rod is located below the wrinkle-removing roller in the Z direction.

[0016] As an alternative, along the Y direction, the spacing between any two adjacent first supports on the same side and the spacing between any two adjacent second supports on the same side are equal.

[0017] Alternatively, the wrinkle-removing roller closer to the coating mechanism is a first wrinkle-removing roller, and the wrinkle-removing roller closer to the drying mechanism is a second wrinkle-removing roller; the foil wrinkle-removing mechanism further includes:

[0018] The driving component has its fixed end mounted on the mounting bracket of the second wrinkle-removing roller;

[0019] The transmission assembly has a drive end connected to one end of the drive member and the other end of the transmission assembly connected to each of the wrinkle-removing rollers. The drive member is used to drive the transmission assembly to move, so as to drive each of the wrinkle-removing rollers to rotate synchronously around the X direction.

[0020] As an optional embodiment, the wrinkle-removing roller located between the first wrinkle-removing roller and the second wrinkle-removing roller is an intermediate wrinkle-removing roller; the transmission assembly includes:

[0021] The first synchronous pulley is sleeved on the output shaft of the drive component;

[0022] The second synchronous pulley and the first synchronous belt are provided. The second synchronous pulley is sleeved on the second wrinkle-removing roller, and the first synchronous belt is sleeved on the first synchronous pulley and the second synchronous pulley.

[0023] The system comprises a third synchronous pulley, a fourth synchronous pulley, and a second synchronous belt. The third synchronous pulley is rotatably connected to the mounting bracket of the second wrinkle-removing roller. The fourth synchronous pulley is sleeved on the intermediate wrinkle-removing roller adjacent to the second wrinkle-removing roller. The second synchronous belt is sleeved on the second synchronous pulley, the third synchronous pulley, and the fourth synchronous pulley. The second synchronous belt is also sleeved between two adjacent intermediate wrinkle-removing rollers and between the first wrinkle-removing roller and the adjacent intermediate wrinkle-removing roller.

[0024] A coating apparatus, comprising:

[0025] Unwinding mechanism, used for unwinding foil;

[0026] A coating mechanism for coating the foil unwound by the unwinding mechanism;

[0027] The foil wrinkle removal mechanism described above is used to smooth out wrinkles on the foil transferred by the coating mechanism;

[0028] A drying mechanism for drying the foil conveyed by the foil wrinkle removal mechanism;

[0029] A winding mechanism for winding up the foil material dried by the drying mechanism.

[0030] The beneficial effects of this utility model are as follows:

[0031] The foil wrinkle removal mechanism of this invention uses multiple wrinkle removal rollers spaced apart along the Y direction on a workbench. In the transport direction from the coating mechanism to the drying mechanism, the height of each wrinkle removal roller gradually increases in the Z direction. This causes the foil, wound from the coating mechanism, to sequentially wind around each wrinkle removal roller in an upward-climbing conveyor belt manner and then horizontally wind to the drying mechanism. In other words, by creating an upward-climbing conveyor belt on the wrinkle removal rollers with gradually increasing heights, the foil can be smoothly transferred from the coating mechanism (which has a lower height) to the drying mechanism (which has a higher height). Compared to directly pulling the foil from the coating mechanism to the drying mechanism, the foil is less prone to wrinkling during conveyor belt transport. Furthermore, during the upward-climbing transport of the foil, the rotational stretching action of each wrinkle removal roller smooths out any wrinkles on the foil, thus ensuring better flatness of the foil during transport.

[0032] The coating device of this invention, by including the aforementioned foil wrinkle removal mechanism, can ensure the flatness of the foil transferred from the coating mechanism to the drying mechanism, thereby improving the drying effect of the drying mechanism on the foil and preventing the wrinkled foil from becoming even more wrinkled during the heating and drying process, thus improving the coating effect on the foil. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the foil wrinkle removal mechanism provided in this utility model. Figure 1 ;

[0034] Figure 2 This is a front view of the foil wrinkle removal mechanism (equipped with foil) provided in this utility model;

[0035] Figure 3 This is a schematic diagram of the foil wrinkle removal mechanism provided in this utility model. Figure 2 ;

[0036] Figure 4 This is a top view of the foil wrinkle removal mechanism provided in this utility model;

[0037] Figure 5 yes Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0038] Explanation of reference numerals in the attached figures:

[0039] 10 - Foil wrinkle removal mechanism; 20 - Foil;

[0040] 1-Working platform;

[0041] 2- Wrinkle-removing roller; 21- First wrinkle-removing roller; 22- Second wrinkle-removing roller; 23- Intermediate wrinkle-removing roller; 24- Thread groove;

[0042] 3-Coating output roller; 4-Drying input roller;

[0043] 5-Mounting bracket; 51-First bracket; 52-Second bracket; 6-Reinforcing rod; 7-Drive component; 71-Output shaft;

[0044] 8-Transmission assembly; 81-First synchronous pulley; 82-Second synchronous pulley; 83-Third synchronous pulley; 84-Fourth synchronous pulley; 85-First synchronous belt; 86-Second synchronous belt. Detailed Implementation

[0045] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0046] Any feature disclosed in this specification, unless specifically stated otherwise, may be replaced by other equivalent or similar features. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features. Throughout this specification, the same reference numerals indicate the same elements.

[0047] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0048] Example 1

[0049] This embodiment proposes a foil wrinkle removal mechanism, which is located between the coating mechanism and the drying mechanism. This foil wrinkle removal mechanism can ensure that the foil is smoothly transferred from the coating mechanism with a lower setting height to the drying mechanism with a higher setting height, thereby ensuring that the foil is not prone to wrinkling during the conveyor belt transport process; and it can provide a certain smoothing effect on the foil during the transport process; thus, it can better ensure the flatness of the foil during the transport process, so as to ensure the coating effect of the foil.

[0050] It is worth noting that the foil material involved in this embodiment refers to the foil material before coating and after coating to form a coating layer. This is just for the purpose of unifying the name. In essence, they are all foil structures, only differing in whether or not they are coated.

[0051] Specifically, such as Figures 1 to 5 As shown, the foil wrinkle removal mechanism 10 includes a work stand 1 and multiple wrinkle removal rollers 2; wherein, the wrinkle removal rollers 2 are rotatably connected to the work stand 1 around the X direction, and multiple wrinkle removal rollers 2 are spaced apart on the work stand 1 along the Y direction. In the transmission direction from the coating mechanism to the drying mechanism, the setting height of each wrinkle removal roller 2 in the Z direction gradually increases.

[0052] In this embodiment, as Figures 1 to 5 As shown, the wrinkle-removing roller 2 near the coating mechanism is the first wrinkle-removing roller 21, and its height is higher than that of the coating output roller 3 of the coating mechanism. The wrinkle-removing roller 2 near the drying mechanism is the second wrinkle-removing roller 22, and its height is flush with that of the drying input roller 4 of the drying mechanism. This allows the foil 20 on the coating output roller 3 to be wound sequentially around each wrinkle-removing roller 2 in an upward climbing motion and then horizontally wound onto the drying input roller 4. Figure 2 Arrow A in the diagram indicates the specific direction of the foil 20 as it climbs uphill.

[0053] Compared to the prior art, the foil wrinkle removal mechanism 10 in this embodiment adds a foil wrinkle removal mechanism 10 between the coating mechanism and the drying mechanism to change the conveying method of the foil 20 from the coating mechanism to the drying mechanism. By making the foil 20 form an upward climbing conveying method on the wrinkle removal rollers 2 with gradually increasing setting heights, it is ensured that the foil 20 can be smoothly transferred from the coating mechanism with a lower setting height to the drying mechanism with a higher setting height. Compared to directly pulling the foil 20 from the coating mechanism to the drying mechanism, the foil 20 is less prone to wrinkling. Furthermore, during the upward conveying of the foil 20, the wrinkles on the foil 20 can be smoothed out by the rotation and stretching action of each wrinkle removal roller 2. Thus, the flatness of the foil 20 during the conveying process can be better guaranteed.

[0054] Furthermore, such as Figures 1 to 3 As shown, along the Z-direction, the spacing between any two adjacent wrinkle-removing rollers 2 is equal. That is, the height difference d1 between the (N+1)th wrinkle-removing roller 2 and the Nth wrinkle-removing roller 2 in the Z-direction and the height difference d2 between the Nth wrinkle-removing roller 2 and the (N-1)th wrinkle-removing roller 2 in the Z-direction satisfy d1 = d2. This ensures that the foil 20 is subjected to relatively uniform force on each wrinkle-removing roller 2, thereby better preventing wrinkling of the foil 20 and improving the smoothing and wrinkle-removing effect of each wrinkle-removing roller 2 on the foil 20. Specifically, the aforementioned multiple wrinkle-removing rollers 2 include the first wrinkle-removing roller 21, the second wrinkle-removing roller 22, and each intermediate wrinkle-removing roller 23 located between the first wrinkle-removing roller 21 and the second wrinkle-removing roller 22.

[0055] Specifically, along the Z direction, the distance between any two adjacent wrinkle-removing rollers 2 is d1 = d2 = 15mm to 30mm, so as to avoid the distance between any two adjacent wrinkle-removing rollers 2 being too large or too small, thereby better ensuring the uniformity of force on each wrinkle-removing roller 2 of the foil 20, and further ensuring the flatness of the foil 20 during the transmission process.

[0056] Furthermore, the number of wrinkle-removing rollers 2 is 3 to 5. On the one hand, this avoids a situation where the number of wrinkle-removing rollers 2 is too small, resulting in a large height difference along the Z direction and a large spacing along the Y direction between adjacent wrinkle-removing rollers 2. This helps to prevent the foil 20 from shaking during transport, thus ensuring that the outer edge of the foil 20 is not prone to wrinkling and that the coating thickness of the coating layer on the foil 20 is relatively uniform and stable. On the other hand, this avoids the situation where the number of wrinkle-removing rollers 2 is too large, which would hinder the rational arrangement of each wrinkle-removing roller 2 on the work stand 1, and also reduces the production cost of the entire foil wrinkle-removing mechanism 10. Preferably, as follows... Figures 1 to 4As shown, in this embodiment, four wrinkle-removing rollers 2 are specifically provided, that is, the four wrinkle-removing rollers 2 include a first wrinkle-removing roller 21, a second wrinkle-removing roller 22 and two intermediate wrinkle-removing rollers 23.

[0057] It is worth noting that the first wrinkle-removing roller 21, the second wrinkle-removing roller 22, and the intermediate wrinkle-removing roller 23 involved in this embodiment are all wrinkle-removing rollers 2, and are only named differently according to their specific placement.

[0058] Furthermore, such as Figure 5 As shown, a threaded groove 24 is provided on the outer peripheral surface of the wrinkle removal roller 2. The side of the foil 20 opposite to the coating layer moves to contact the threaded groove 24. That is, the coating layer of the foil 20 does not contact the wrinkle removal roller 2, so as to avoid the wrinkle removal roller 2 from interfering with the coating layer.

[0059] By providing a threaded groove 24 on the outer peripheral surface of the wrinkle-removing roller 2, the threaded groove 24, which rotates around the X direction, can form a continuous threaded rotation when the foil 20 contacts the threaded groove 24. This continuous threaded rotation can flatten the middle part of the foil 20 to the two opposite outer sides, thereby better ensuring the smoothing and wrinkling effect of the wrinkle-removing roller 2 on the foil 20.

[0060] Furthermore, the acute angle between the threaded groove 24 and the axis of the wrinkle-removing roller 2 is 15° to 20° to avoid the included angle between the threaded groove 24 and the axis of the wrinkle-removing roller 2 being too large or too small. This ensures that the continuous threaded rotation of the threaded groove 24 flattens the middle part of the foil 20 to the opposite outer sides, further ensuring the flatness of the foil 20 during the transmission process. The axis of the wrinkle-removing roller 2 is parallel to the X-direction.

[0061] Specifically, such as Figures 1 to 5 As shown, the foil wrinkle removal mechanism 10 also includes a mounting bracket 5 and a reinforcing rod 6; wherein, the mounting bracket 5 includes a first bracket 51 and a second bracket 52 arranged opposite to each other along the X direction, the opposite ends of the wrinkle removal roller 2 are respectively rotatably connected to the first bracket 51 and the second bracket 52 around the X direction, and the first bracket 51 is slidably connected to the work stand 1 along the X direction and / or the Y direction, and the second bracket 52 is slidably connected to the work stand 1 along the X direction and / or the Y direction; and at least one reinforcing rod 6 is connected between the first bracket 51 and the second bracket 52, the reinforcing rod 6 is spaced below the wrinkle removal roller 2 in the Z direction, so as to avoid the reinforcing rod 6 interfering with the wrinkle removal roller 2 and the foil 20 on it.

[0062] By connecting a reinforcing rod 6 between the first bracket 51 and the second bracket 52, the structural strength of the entire mounting bracket 5 can be improved, thereby ensuring the reliability of the support and the stability of the rotation of the wrinkle-removing roller 2 on the mounting bracket 5. For example, Figure 1As shown, a reinforcing rod 6 is connected between the first bracket 51 and the second bracket 52, which are opposite each other along the X direction. The length of the reinforcing rod 6 extends horizontally along the X direction. This ensures the structural strength of the mounting bracket 5 while improving the simplicity and aesthetics of the overall bracket structure formed by assembling the mounting bracket 5 and the reinforcing rod 6, and also reduces the cost of the overall bracket structure. Correspondingly, four such overall bracket structures are provided, with one wrinkle-removing roller 2 on each overall bracket structure. Here, the actual number and shape of the reinforcing rods 6 are not specifically limited.

[0063] By sliding the first bracket 51 and the second bracket 52 onto the work stand 1 along the X and / or Y directions, the specific installation positions of the first bracket 51 and the second bracket 52 on the work stand 1 can be adjusted according to actual installation requirements. This allows the distance between the first bracket 51 and the second bracket 52, which are positioned opposite each other along the X direction, to be adapted to the length of the wrinkle-removing roller 2. This enables the installation of various wrinkle-removing rollers 2 of different lengths on the mounting bracket 5 according to actual working conditions, resulting in good applicability and versatility of the entire mounting bracket 5. On the other hand, along the Y direction, the distance between any two adjacent first brackets 51 on the same side and the distance between any two adjacent second brackets 52 on the same side are both suitable, which helps to ensure a reasonable arrangement between any two adjacent wrinkle-removing rollers 2 along the Y direction.

[0064] Specifically, the workbench 1 has M1 first mounting holes arranged along the X and Y directions. The first bracket 51 has M2 second mounting holes, and the second bracket 52 has M3 third mounting holes, where M1 > M2 and M1 > M3. The first fastening bolt is connected to one of the first mounting holes and one of the second mounting holes in any alignment to slide the first bracket 51 onto the workbench 1 along the X and / or Y directions. The second fastening bolt is connected to one of the first mounting holes and one of the third mounting holes in any alignment to slide the second bracket 52 onto the workbench 1 along the X and / or Y directions.

[0065] Specifically, such as Figures 1 to 4 As shown, the first bracket 51 and the second bracket 52 in the same mounting bracket 5 have the same structure and height. The first bracket 51 in different mounting brackets 5 have the same structure but different heights. The second bracket 52 in different mounting brackets 5 have the same structure but different heights. Here, the specific structure and height of the first bracket 51 and the second bracket 52 are not limited.

[0066] Furthermore, such as Figures 1 to 4As shown, along the Y direction, the distance between any two adjacent first supports 51 on the same side and the distance between any two adjacent second supports 52 on the same side are equal. That is, along the Y direction, each mounting support 5 is evenly arranged, which can ensure that the foil 20 is subjected to more uniform force on each wrinkle removal roller 2, thereby better preventing the foil 20 from wrinkling and further improving the smoothing and wrinkle removal effect of each wrinkle removal roller 2 on the foil 20.

[0067] Specifically, such as Figures 1 to 5 As shown, the foil wrinkle removal mechanism 10 also includes a drive component 7 and a transmission assembly 8. The fixed end of the drive component 7 is mounted on the mounting bracket 5 of the second wrinkle removal roller 22. The drive end of the drive component 7 is connected to one end of the transmission assembly 8, and the other end of the transmission assembly 8 is connected to each wrinkle removal roller 2. The drive component 7 drives the transmission assembly 8 to move, thereby causing each wrinkle removal roller 2 to rotate synchronously around the X direction. In this embodiment, the fixed end of the drive component 7 is specifically mounted on the first bracket 51 of the second wrinkle removal roller 22; the drive component 7 can specifically be a servo motor.

[0068] By setting a driving component 7 to synchronously drive each wrinkle-removing roller 2 to rotate around the X direction, on the one hand, the number of driving components 7 can be reduced, thus reducing the cost of the entire foil wrinkle-removing mechanism 10; and on the other hand, it is beneficial to arrange individual driving components 7 on the mounting bracket 5, making the structural layout of the entire foil wrinkle-removing mechanism 10 simpler, more reasonable, and more compact, further improving the simplicity and aesthetics of the entire foil wrinkle-removing mechanism 10; on the other hand, it can ensure the synchronous rotation of each wrinkle-removing roller 2, thereby unifying the rotation speed of each wrinkle-removing roller 2, improving the smoothness of the entire foil wrinkle-removing mechanism 10 in conveying the foil 20, preventing the problem of slurry backflow caused by the instability of the coating layer due to the speed difference between each wrinkle-removing roller 2, and thus making the coating layer of the foil 20 more stable, ensuring that the outer edge of the foil 20 is not prone to wrinkling, and making the flatness of the foil 20 better throughout the entire transmission process.

[0069] Furthermore, such as Figure 1 , Figures 3 to 5As shown, the transmission assembly 8 includes a first synchronous pulley 81, a second synchronous pulley 82, a first synchronous belt 85, a third synchronous pulley 83, a fourth synchronous pulley 84, and a second synchronous belt 86. The first synchronous pulley 81 is sleeved on the output shaft 71 of the drive member 7, which extends along the X direction towards the center of the mounting bracket 5. The output shaft 71 is located between the second wrinkle-removing roller 22 and the adjacent intermediate wrinkle-removing roller 23. The second synchronous pulley 82 is sleeved on the second wrinkle-removing roller 22, and the first synchronous belt 85 is sleeved on both the first and second synchronous pulleys 81 and 82. The third synchronous pulley 83 is rotatably connected to the first bracket 51 of the mounting bracket 5 of the second wrinkle-removing roller 22, and the fixed end of the third synchronous pulley 83 and the drive member 7 are respectively located on the first... The bracket 51 is positioned on opposite sides along the X direction to avoid interference between the drive unit 7 and the third synchronous pulley 83; the fourth synchronous pulley 84 is fitted onto the intermediate wrinkle-removing roller 23 adjacent to the second wrinkle-removing roller 22; the second synchronous belt 86 is fitted onto the second synchronous pulley 82, the third synchronous pulley 83, and the fourth synchronous pulley 84; the above-mentioned transmission structure is arranged sequentially on the remaining wrinkle-removing rollers 2, that is, the above-mentioned second synchronous belt 86 is fitted between two adjacent intermediate wrinkle-removing rollers 23, and between the first wrinkle-removing roller 21 and the adjacent intermediate wrinkle-removing roller 23, so that the above-mentioned synchronous pulleys and synchronous belts can be used to drive each wrinkle-removing roller 2 to rotate simultaneously around the X direction through a drive unit 7.

[0070] Specifically, such as Figure 3 and Figure 5 As shown, when the output shaft 71 of the drive unit 7 rotates around the X direction, the output shaft 71 drives the first synchronous pulley 81 to rotate, which in turn drives the second synchronous pulley 82 to rotate via the first synchronous belt 85, thereby driving the second wrinkle-removing roller 22 to rotate around the X direction. Simultaneously, the rotation of the second synchronous pulley 82 drives the second synchronous belt 86 to move, which in turn drives the fourth synchronous pulley 84 to rotate, thereby driving the intermediate wrinkle-removing roller 23 adjacent to the second wrinkle-removing roller 22 to rotate synchronously around the X direction. This process is repeated, with the second synchronous belt 86, which is fitted between two adjacent intermediate wrinkle-removing rollers 23, synchronously driving another intermediate wrinkle-removing roller 22 to rotate around the X direction. The second synchronous belt 86, which is fitted between the first wrinkle-removing roller 21 and its adjacent intermediate wrinkle-removing roller 23, also synchronously drives the first wrinkle-removing roller 22 to rotate around the X direction. Thus, a single drive unit 7 can drive all the wrinkle-removing rollers 2 to rotate simultaneously around the X direction. A tensioner is provided on each synchronous belt to prevent belt slippage.

[0071] Furthermore, such as Figure 5As shown, along the Z direction, at least a portion of the aforementioned third synchronous pulley 83 is located below the first synchronous pulley 81. That is, the aforementioned third synchronous pulley 83 is not flush with the adjacent first synchronous pulley 81, so that the first synchronous pulley 81 is located inside the ring of the adjacent second synchronous belt 86, thereby avoiding interference between the first synchronous pulley 81 and the adjacent second synchronous belt 86.

[0072] By setting the transmission assembly 8 with the above-described structure, on the one hand, it can accurately ensure that each wrinkle-removing roller 2 can be driven to rotate around the X direction simultaneously by a single drive component 7; on the other hand, it can make the arrangement of each synchronous pulley and each synchronous belt in the entire transmission assembly 8 more orderly and reasonable, ensuring that each synchronous pulley and each synchronous belt will not interfere with each other; and, a third synchronous pulley 83 is rotatably connected to the first bracket 51, and the second synchronous belt 86 is sleeved on the second synchronous pulley 82, the third synchronous pulley 83 and the fourth synchronous pulley 84, so that by sleeved... The second synchronous belt 86 on the three synchronous pulleys ensures the rotational balance between the second wrinkle-removing roller 22 and the adjacent intermediate wrinkle-removing roller 23. The second synchronous belt 86 sleeved between two adjacent intermediate wrinkle-removing rollers 23 also ensures the rotational balance between the first wrinkle-removing roller 21 and the adjacent intermediate wrinkle-removing roller 23. Thus, it ensures that each wrinkle-removing roller 2 can rotate stably around the X direction without any shaking.

[0073] Specifically, such as Figure 3 and Figure 5 As shown, the second synchronous pulley 82 sleeved on the second wrinkle-removing roller 22 and the fourth synchronous pulley 84 sleeved on the intermediate wrinkle-removing roller 23 adjacent to the second wrinkle-removing roller 22 are, in other words, the synchronous pulleys sleeved on each wrinkle-removing roller 2 are all double-groove synchronous pulleys, and two synchronous belts can be sleeved on the double-groove synchronous pulleys at intervals; the other synchronous pulleys involved in the transmission assembly 8 are all single-groove synchronous pulleys, and a synchronous belt is sleeved on the single-groove synchronous pulley; the first synchronous belt 85 and the second synchronous belt 86 mentioned above can be belts commonly used in the prior art.

[0074] In this embodiment, the foil wrinkle removal mechanism 10 changes the conveyor belt method of the foil 20 from the coating mechanism to the drying mechanism, so that the foil 20 forms an upward climbing conveyor belt on each wrinkle removal roller 2 with gradually increasing setting height. This ensures that the foil 20 can be smoothly transferred from the coating mechanism with a lower setting height to the drying mechanism with a higher setting height. This ensures that the foil 20 is not prone to wrinkling during the transmission process, and that the wrinkles on the foil 20 are smoothed out by the rotation and stretching action of each wrinkle removal roller 2.

[0075] In this embodiment, the foil wrinkle removal mechanism 10 has a threaded groove 24 on the outer peripheral surface of the wrinkle removal roller 2, and the acute angle between the threaded groove 24 and the axis of the wrinkle removal roller 2 is 15° to 20°. This ensures that the continuous threaded rotation of the threaded groove 24 flattens the middle part of the foil 20 to the two outer sides, thus ensuring a good wrinkle removal and flattening effect on the foil 20.

[0076] In this embodiment, the foil wrinkle removal mechanism 10 ensures that the spacing between any two adjacent wrinkle removal rollers 2 is equal along the Z direction, and that the spacing d1 = d2 = 15mm to 30mm between any two adjacent wrinkle removal rollers 2; and that the spacing between any two adjacent first supports 51 and any two adjacent second supports 52 on the same side is equal along the Y direction. This ensures that the foil 20 is subjected to uniform force on each wrinkle removal roller 2, thereby better preventing wrinkles on the foil 20 and improving the smoothing and wrinkle removal effect of each wrinkle removal roller 2 on the foil 20.

[0077] The foil wrinkle removal mechanism 10 in this embodiment, by setting a driving component 7 and a transmission assembly 8 including multiple synchronous pulleys and multiple synchronous belts, can ensure the rotational synchronicity of each wrinkle removal roller 2, while making the arrangement of each synchronous pulley and each synchronous belt in the entire transmission assembly 8 more orderly and reasonable, and can ensure the rotational balance between two adjacent wrinkle removal rollers 2.

[0078] Example 2

[0079] This embodiment proposes a coating apparatus, which includes an unwinding mechanism, a coating mechanism, a foil wrinkle-removing mechanism 10 as described in Embodiment 1 above, a drying mechanism, and a winding mechanism. The unwinding mechanism is used to unwind foil 20. The coating mechanism is located downstream of the unwinding mechanism and is used to coat the foil 20 unwound by the unwinding mechanism. The foil wrinkle-removing mechanism 10 is located downstream of the coating mechanism and is used to smooth out wrinkles on the foil 20 transmitted by the coating mechanism, ensuring good flatness of the foil 20. The drying mechanism is located downstream of the foil wrinkle-removing mechanism 10 and is used to dry the foil 20 transmitted by the foil wrinkle-removing mechanism 10, thereby drying the coating layer on the foil 20. The winding mechanism is located downstream of the drying mechanism and is used to wind up the foil 20 dried by the drying mechanism.

[0080] Specifically, in this embodiment, the unwinding mechanism adopts a common unwinding roller structure in the prior art, the coating mechanism adopts a common coating structure in the prior art, the drying mechanism adopts a common electric heating drying box structure in the prior art, and the winding mechanism adopts a common winding roller structure in the prior art.

[0081] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A foil wrinkle removal mechanism, disposed between a coating mechanism and a drying mechanism, characterized in that, include: Work stand(1); The wrinkle-removing roller (2) is rotatably connected to the work stand (1). Multiple wrinkle-removing rollers (2) are spaced apart along the Y direction on the work stand (1). In the transmission direction from the coating mechanism to the drying mechanism, the setting height of each wrinkle-removing roller (2) in the Z direction gradually increases.

2. The foil wrinkle removal mechanism as described in claim 1, characterized in that, Along the Z direction, the spacing between any two adjacent wrinkle-removing rollers (2) is equal, and the spacing between any two adjacent wrinkle-removing rollers (2) is 15mm to 30mm.

3. The foil wrinkle removal mechanism as described in claim 1, characterized in that, The number of wrinkle-removing rollers (2) is 3 to 5.

4. The foil wrinkle removal mechanism as described in claim 1, characterized in that, The outer peripheral surface of the wrinkle-removing roller (2) is provided with a threaded groove (24). The side of the foil (20) opposite to the coating layer moves to contact the threaded groove (24) so ​​that the middle part of the foil (20) flattens outwards to the opposite sides.

5. The foil wrinkle removal mechanism as described in claim 4, characterized in that, The acute angle between the threaded groove (24) and the axis of the wrinkle-removing roller (2) is 15° to 20°.

6. The foil wrinkle removal mechanism according to any one of claims 1-5, characterized in that, The foil wrinkle removal mechanism also includes: Mounting bracket (5) includes a first bracket (51) and a second bracket (52) arranged opposite to each other along the X direction. The opposite ends of the wrinkle removal roller (2) are respectively rotatably connected to the first bracket (51) and the second bracket (52) around the X direction. The first bracket (51) is slidably connected to the work stand (1) along the X direction and / or the Y direction, and the second bracket (52) is slidably connected to the work stand (1) along the X direction and / or the Y direction. A reinforcing rod (6) is provided between the first bracket (51) and the second bracket (52), at least one of the reinforcing rods (6) being connected thereto, the reinforcing rods (6) being spaced below the wrinkle-removing roller (2) in the Z direction.

7. The foil wrinkle removal mechanism as described in claim 6, characterized in that, Along the Y direction, the distance between any two adjacent first supports (51) on the same side and the distance between any two adjacent second supports (52) on the same side are equal.

8. The foil wrinkle removal mechanism as described in claim 6, characterized in that, The wrinkle-removing roller (2) near the coating mechanism is a first wrinkle-removing roller (21), and the wrinkle-removing roller (2) near the drying mechanism is a second wrinkle-removing roller (22); the foil wrinkle-removing mechanism further includes: The driving component (7) has its fixed end mounted on the mounting bracket (5) of the second wrinkle-removing roller (22); The transmission assembly (8) has its driving end connected to one end of the driving member (7), and the other end of the transmission assembly (8) is connected to each of the wrinkle removal rollers (2). The driving member (7) is used to drive the transmission assembly (8) to move so as to drive each of the wrinkle removal rollers (2) to rotate synchronously around the X direction.

9. The foil wrinkle removal mechanism as described in claim 8, characterized in that, The wrinkle-removing roller (2) located between the first wrinkle-removing roller (21) and the second wrinkle-removing roller (22) is an intermediate wrinkle-removing roller (23); the transmission assembly (8) includes: The first synchronous pulley (81) is sleeved on the output shaft (71) of the drive component (7); The second synchronous pulley (82) and the first synchronous belt (85) are provided. The second synchronous pulley (82) is sleeved on the second wrinkle removal roller (22). The first synchronous belt (85) is sleeved on the first synchronous pulley (81) and the second synchronous pulley (82). The third synchronous pulley (83), the fourth synchronous pulley (84), and the second synchronous belt (86) are provided. The third synchronous pulley (83) is rotatably connected to the mounting bracket (5) of the second wrinkle-removing roller (22). The fourth synchronous pulley (84) is sleeved on the intermediate wrinkle-removing roller (23) adjacent to the second wrinkle-removing roller (22). The second synchronous belt (86) is sleeved on the second synchronous pulley (82), the third synchronous pulley (83), and the fourth synchronous pulley (84). The second synchronous belt (86) is also sleeved between two adjacent intermediate wrinkle-removing rollers (23) and between the first wrinkle-removing roller (21) and the adjacent intermediate wrinkle-removing roller (23).

10. A coating apparatus, characterized in that, include: An unwinding mechanism for unwinding foil (20); A coating mechanism for coating the foil (20) unwound by the unwinding mechanism; The foil wrinkle removal mechanism as described in any one of claims 1-9 is used to smooth out wrinkles on the foil (20) transmitted by the coating mechanism; A drying mechanism for drying the foil (20) transferred to the foil wrinkle removal mechanism; A winding mechanism for winding up the foil (20) after it has been dried by the drying mechanism.

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