A film vibration blocking device and a double-in and double-out coating production line

Abstract

The present invention discloses a film vibration blocking device, and also discloses a double-releasing and double-receiving coating production line having the film vibration blocking device. The film vibration blocking device includes a frame and two clamping and moving mechanisms. The two clamping and moving mechanisms are both arranged on the frame, and the two clamping and moving mechanisms are respectively used for clamping both sides in the width direction of the film. The clamping and moving mechanism includes an annular slide rail, a driving assembly, a second top block and a plurality of clamping assemblies. The plurality of clamping assemblies can all be slidably connected to the annular slide rail. The driving assembly is used to drive the plurality of clamping assemblies to move cyclically on the annular slide rail. The annular slide rail has a first straight section. The moving speeds of the plurality of clamping assemblies on the first straight section are all the same as the conveying speed of the film, and the clamping assemblies on the first straight section can clamp one side of the film. This film vibration blocking device blocks the vibration of the film in the air-floating oven from being transmitted to the film at the coating device, which is beneficial to ensuring the coating quality of the coating device.

Description

Technical Field

[0001] The present invention relates to the technical field of coating processing, and particularly relates to a film vibration blocking device and a double-unwind and double-rewind coating production line. Background Art

[0002] A coating production line is an automated production device used to coat specific materials on various film substrates. Through devices such as unwinding, coating, drying, and rewinding, a coating can be evenly formed on the surface of the film. Currently, an air-floating oven is often used in the coating production line to dry the coating on the film. After the coating device in the coating production line coats the coating on the surface of the film, the film will enter the air-floating oven for drying. The air-floating oven keeps the film in a suspended state inside the oven through air nozzles to prevent the film from contacting the inner wall of the oven, and the hot air blown from different directions inside the oven can evenly dry the coating on the film surface to achieve the purpose of drying the coating. In the prior art, the speed and pressure of the air flow at the entrance of the air-floating oven may fluctuate. This unstable air flow will impact the film entering the air-floating oven, causing the film to vibrate instantly when entering the air-floating oven, and the vibration of the film inside the air-floating oven is transmitted to the film at the coating device. The vibration of the film at the coating device will cause the gap between the coating device and the film to vibrate, making it impossible for the coating device to evenly coat the coating on the film. As a result, the deposition amount of the coating on the film surface is unstable, the thickness of the coating coated on the film by the coating device is uneven, and it is not conducive to improving the coating quality of the coating device. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present invention provides a film vibration blocking device, which can prevent the vibration of the film inside the air-floating oven from being transmitted to the film at the coating device, and is beneficial to ensuring the coating quality of the coating device.

[0004] The present invention also provides a double-unwind and double-rewind coating production line having the above-mentioned film vibration blocking device.

[0005] A film vibration blocking device according to an embodiment of the first aspect of the present invention includes a frame and two clamping and moving mechanisms; the two clamping and moving mechanisms are respectively used to clamp both sides in the width direction of the film to block the vibration of the film in the air-floating oven from being transmitted to the film at the coating device; the clamping and moving mechanism includes an annular slide rail, a driving component, a second top block and a plurality of clamping components, the annular slide rail is arranged on the frame, the driving component is used to drive the plurality of clamping components to move cyclically on the annular slide rail, the annular slide rail has a first straight section, and the plurality of clamping components on the first straight section can all move along the conveying direction of the film, and the moving speeds of the plurality of clamping components on the first straight section are all the same as the conveying speed of the film, the second top block is arranged on the frame and is located above the first straight section, and the plurality of clamping components on the first straight section are all abutted against the second top block, so that the plurality of clamping components on the first straight section can simultaneously clamp one side of the film, and the clamping component can be disengaged from the abutment with the second top block, so that the clamping component releases one side of the film.

[0006] It has at least the following beneficial effects:

[0007] This film vibration blocking device is installed between the coating device and the air-floating oven. The film vibration blocking device includes two clamping and moving mechanisms. The two clamping and moving mechanisms can clamp both sides of the film respectively, so that the film clamped by the two clamping and moving mechanisms will not vibrate, blocking the vibration of the film in the air-floating oven from being transmitted to the film at the coating device. Specifically, the two clamping and moving mechanisms both include an annular slide rail, a driving component, a second top block and a plurality of clamping components. During the conveying process of the film, the driving component can drive the plurality of clamping components to move cyclically on the annular slide rail. When the clamping component moves to the first straight section, the clamping component will abut against the lower surface of the second top block above the first straight section. Under the action of the second top block, the clamping component will clamp one side of the film, and under the action of the driving component, the moving directions of the plurality of clamping components on the first straight section are all the same as the conveying direction of the film, and the moving speeds of the plurality of clamping components on the first straight section are all the same as the conveying speed of the film, that is, the plurality of clamping components on the first straight section move along with the film while clamping the film, avoiding relative displacement between the plurality of clamping components on the first straight section and the film. Under the clamping action of the plurality of clamping components on the first straight section, the film near the entrance of the air-floating oven will not vibrate, blocking the vibration of the film in the air-floating oven from being transmitted to the film at the coating device, so that the film at the coating device can be conveyed smoothly, and then the coating device can evenly coat the coating on the film, so it is beneficial to ensure the coating quality of the coating device.

[0008] According to the thin-film vibration blocking device of the first aspect embodiment of the present invention, the clamping assembly includes a slider, a first clamping arm, a second clamping arm and an elastic member. The slider is slidably connected to the annular slide rail, the slider is connected to the output end of the driving assembly, the first clamping arm is arranged on the slider, the second clamping arm is movably connected to the slider, and the elastic member is arranged between the first clamping arm and the second clamping arm. A gap between the first clamping arm and the second clamping arm is for one side of the thin film to extend into. The second clamping arm can abut against the lower surface of the second top block, so that the second clamping arm approaches the first clamping arm. The second clamping arm can be disengaged from abutting against the second top block, so that the elastic member can drive the second clamping arm away from the first clamping arm, and the first clamping arm and the second clamping arm release one side of the thin film.

[0009] According to the thin-film vibration blocking device of the first aspect embodiment of the present invention, the clamping and moving mechanism further includes a first top block. The first top block is arranged on the frame. The first clamping arm is movably connected to the slider. The first clamping arm and the second clamping arm can simultaneously abut against the first top block and the second top block respectively, so that the first clamping arm and the second clamping arm approach each other and clamp one side of the thin film. The first clamping arm and the second clamping arm can simultaneously disengage from abutting against the first top block and the second top block respectively, so that the elastic member drives the first clamping arm and the second clamping arm away from each other, and the first clamping arm and the second clamping arm release one side of the thin film.

[0010] According to the thin-film vibration blocking device of the first aspect embodiment of the present invention, a first guiding inclined surface is provided at one end of the first top block. The first clamping arm can abut against the first guiding inclined surface, so that the first clamping arm can abut against the upper surface of the first top block. A second guiding inclined surface is provided at one end of the second top block. The second clamping arm can abut against the second guiding inclined surface, so that the second clamping arm can abut against the lower surface of the second top block.

[0011] According to the thin-film vibration blocking device of the first aspect embodiment of the present invention, a first buffering inclined surface is provided at the other end of the first top block, and a second buffering inclined surface is provided at the other end of the second top block. The first clamping arm and the second clamping arm can simultaneously abut against the first buffering inclined surface and the second buffering inclined surface respectively, so as to slow down the speed at which the first clamping arm and the second clamping arm move away from each other.

[0012] The film vibration blocking device according to the embodiment of the first aspect of the present invention, the clamping assembly further includes a plurality of guide posts, a plurality of first guide holes are formed on the first clamping arm, a plurality of second guide holes are formed on the second clamping arm, the lower ends of the plurality of guide posts are respectively inserted into the plurality of first guide holes, the lower ends of the plurality of guide posts are all connected to the slider, and the upper ends of the plurality of guide posts are respectively inserted into the plurality of second guide holes.

[0013] The film vibration blocking device according to the embodiment of the first aspect of the present invention, the clamping assembly includes a plurality of the elastic members, the plurality of elastic members are respectively sleeved on the plurality of guide posts, and the upper and lower ends of the elastic member respectively abut against the second clamping arm and the first clamping arm.

[0014] The film vibration blocking device according to the embodiment of the first aspect of the present invention, the clamping assembly further includes a first driven belt and a second driven belt, both the first driven belt and the second driven belt are parallel to the first straight segment, a first mounting groove is formed on the first clamping arm, a second mounting groove is formed on the second clamping arm, the first driven belt is rotatably connected in the first mounting groove, the second driven belt is rotatably connected in the second mounting groove, the first clamping arm abuts against one side of the film through the first driven belt, the second clamping arm abuts against one side of the film through the second driven belt, so that when the first clamping arm and the second clamping arm have relative displacement with respect to the film, the first driven belt and the second driven belt can rotate.

[0015] The film vibration blocking device according to the embodiment of the first aspect of the present invention, both of the two clamping and moving mechanisms are slidably connected to the frame, so that the distance between the two clamping and moving mechanisms is adjustable.

[0016] The double-unwind and double-rewind coating production line according to the embodiment of the second aspect of the present invention includes two continuous coating devices, one of the continuous coating devices is arranged above the other continuous coating device, both of the two continuous coating devices include an automatic unwinding device, a preheating oven, a coating device, a pneumatic floating oven, a deviation rectifying device, an automatic rewinding device and the film vibration blocking device according to the embodiment of the first aspect above, and the automatic unwinding device, the preheating oven, the coating device, the film vibration blocking device, the pneumatic floating oven, the deviation rectifying device and the automatic rewinding device are arranged in sequence along the conveying path of the film.

[0017] It has at least the following beneficial effects: This double-unwind and double-rewind coating production line has all the beneficial effects brought by the above film vibration blocking device, and will not be repeated here.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0019] The present invention will be further described below in conjunction with the drawings and embodiments, where:

[0020] Figure 1 is a schematic structural diagram of the film vibration blocking device and the film in the embodiment of the present invention;

[0021] Figure 2 is Figure 1 a partial enlarged view of part A in

[0022] Figure 3 is Figure 1 a partial enlarged view of part B in

[0023] Figure 4 is a schematic structural diagram of the film vibration blocking device in the embodiment of the present invention;

[0024] Figure 5 is a schematic structural diagram of the clamping and moving mechanism in the film vibration blocking device in the embodiment of the present invention;

[0025] Figure 6 is a partial schematic structural diagram of the clamping and moving mechanism in the film vibration blocking device in the embodiment of the present invention;

[0026] Figure 7 is a schematic structural diagram of the clamping assembly in the film vibration blocking device in the embodiment of the present invention;

[0027] Figure 8 is a side view of the first clamping arm, the second clamping arm, the first top block and the second top block in the film vibration blocking device in the embodiment of the present invention;

[0028] Figure 9 is a top view schematic diagram of the film vibration blocking device, the coating device, the air float oven and the film in the embodiment of the present invention;

[0029] Figure 10 is a schematic structural diagram of another embodiment of the first clamping arm and the second clamping arm in the film vibration blocking device in the embodiment of the present invention;

[0030] Figure 11 is a schematic structural diagram of another embodiment of the second clamping arm in the film vibration blocking device in the embodiment of the present invention;

[0031] Reference numerals in the drawings:

[0032] Clamping and moving mechanism 100;

[0033] Drive assembly 200; Synchronous belt 210; Driven pulley 220; Driving pulley 230;

[0034] Clamping assembly 300; First clamping arm 310; First driven belt 311; Second clamping arm 320; Second driven belt 321; Elastic member 330; Guide post 340; Slide block 350;

[0035] Annular slide rail 400; First straight section 410; Mounting plate 420; Second top block 430; Second guiding inclined surface 431; Second buffer inclined surface 432; First top block 440;

[0036] Frame 500;

[0037] Air - floating oven 10; Coating device 20. Detailed implementation mode

[0038] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation to the present invention.

[0039] In the description of the present invention, if the first and the second are described only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0040] In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0041] Reference Figures 1 to 3 and Figure 9, the present invention discloses a film vibration blocking device, which includes a frame 500 and two clamping and moving mechanisms 100. The two clamping and moving mechanisms 100 are both arranged on the frame 500, and the two clamping and moving mechanisms 100 are respectively used to clamp both sides in the width direction of the film. The clamping and moving mechanism 100 includes an annular slide rail 400, a driving component 200, a second top block 430 and a plurality of clamping components 300. The plurality of clamping components 300 are all slidably connected to the annular slide rail 400, and the plurality of clamping components 300 are all connected to the output end of the driving component 200. The driving component 200 is used to drive the plurality of clamping components 300 to move in a cycle on the annular slide rail 400. The annular slide rail 400 has a first straight section 410. The plurality of clamping components 300 on the first straight section 410 can all move along the conveying direction of the film, and the moving speeds of the plurality of clamping components 300 on the first straight section 410 are the same as the conveying speed of the film. The length direction of the second top block 430 is parallel to the first straight section 410, and the length of the second top block 430 is less than the length of the first straight section 410. The second top block 430 is arranged above the first straight section 410, and the lower surface of the second top block 430 can simultaneously abut against the clamping components 300 on the first straight section 410, so that some of the clamping components 300 on the first straight section 410 can clamp one side of the film.

[0042] In an embodiment of the present invention, referring to Figure 1 , Figure 4 and Figure 9 , the film is conveyed from back to front, that is, the conveying direction of the film is parallel to the front-back direction, and the width direction of the film is the left-right direction. The film vibration blocking device of the embodiment of the present invention is installed between the coating device 20 and the air floating oven 10, and the film vibration blocking device is close to the entrance of the air floating oven 10. The film vibration blocking device includes a frame 500 and two clamping and moving mechanisms 100. The frame 500 is used to be arranged between the coating device 20 and the air floating oven 10, and the frame 500 is close to the entrance of the air floating oven 10. The two clamping and moving mechanisms 100 are both arranged on the frame 500, and the gap between the two clamping and moving mechanisms 100 is used for the film to move from back to front, that is, the two clamping and moving mechanisms 100 are respectively located on the left and right sides of the film, so that the two clamping and moving mechanisms 100 can respectively clamp the left and right sides of the film, and the moving speeds and directions of the two clamping and moving mechanisms 100 are the same as the conveying speed and direction of the film.

[0043] Referring to Figure 5 and Figure 6 , both of the two clamping and moving mechanisms 100 include an annular slide rail 400, a driving component 200, a second top block 430 and a plurality of clamping components 300. Here, one of the clamping and moving mechanisms 100 will be described. In an embodiment of the present invention, referring to Figure 5 , Figure 6 andFigure 9 In an embodiment of the present invention, the annular slide rail 400 has a first straight section 410, a second straight section, a first arc section and a second arc section. The first straight section 410 and the second straight section are both parallel to the front-rear direction. The front ends of the first straight section 410 and the second straight section are respectively connected to both ends of the first arc section, and the rear ends of the first straight section 410 and the second straight section are respectively connected to both ends of the second arc section. The first straight section 410 is close to the film. A plurality of clamping assemblies 300 are all slidably connected to the annular slide rail 400, and the plurality of clamping assemblies 300 are evenly distributed on the annular slide rail 400. In other words, the plurality of clamping assemblies 300 can slide on the first straight section 410, the second straight section, the first arc section and the second arc section. Refer to Figure 1 and Figure 9 , the area between the first straight sections 410 of the two annular slide rails 400 is for the film to pass through.

[0044] Refer to Figure 5 and Figure 6 , the driving assembly 200 is arranged on the frame 500. The output end of the driving assembly 200 is simultaneously connected to a plurality of clamping assemblies 300, so that the driving assembly 200 can simultaneously drive the plurality of clamping assemblies 300 to move cyclically on the closed-loop annular slide rail 400, that is, the plurality of clamping assemblies 300 can move cyclically on the first straight section 410, the second straight section, the first arc section and the second arc section. In an embodiment of the present invention, when the clamping assembly 300 moves to the first straight section 410, the moving direction of the clamping assembly 300 will be the same as the conveying direction of the film, that is, the moving directions of the plurality of clamping assemblies 300 moving to the first straight section 410 are all the same as the conveying direction of the film, and the moving speeds of the plurality of clamping assemblies 300 moving to the first straight section 410 are all the same as the conveying speed of the film. In an embodiment of the present invention, the length direction of the second top block 430 is the same as the length direction of the first straight section 410, and the length of the second top block 430 is less than the length of the first straight section 410. In other words, the front end of the second top block 430 is located behind the front end of the first straight section 410, and the rear end of the second top block 430 is located in front of the rear end of the first straight section 410. The second top block 430 is arranged on the frame 500 and is located above the first straight section 410, so that the lower surface of the second top block 430 can simultaneously abut against the plurality of clamping assemblies 300 on the first straight section 410. Under the action of the second top block 430, the plurality of clamping assemblies 300 on the first straight section 410 can clamp one side of the film while moving.

[0045] It can be understood that the film vibration blocking device is installed between the coating device 20 and the air floating oven 10. The film vibration blocking device includes two clamping and moving mechanisms 100. The two clamping and moving mechanisms 100 can respectively clamp both sides of the film, so that the film clamped by the two clamping and moving mechanisms 100 will not vibrate, blocking the vibration transfer of the film in the air floating oven 10 to the film at the coating device 20. Specifically, the two clamping and moving mechanisms 100 both include an annular slide rail 400, a driving component 200, a second top block 430 and a plurality of clamping components 300. During the film conveying process, the driving component 200 can drive the plurality of clamping components 300 to move cyclically on the annular slide rail 400. When the clamping component 300 moves to the first straight section 410, the clamping component 300 will abut against the lower surface of the second top block 430 above the first straight section 410. Under the action of the second top block 430, the clamping component 300 will clamp one side of the film, and under the action of the driving component 200, the moving directions of the plurality of clamping components 300 on the first straight section 410 are all the same as the film conveying direction, and the moving speeds of the plurality of clamping components 300 on the first straight section 410 are all the same as the film conveying speed, that is, the plurality of clamping components 300 on the first straight section 410 move together with the film while clamping the film, avoiding relative displacement between the plurality of clamping components 300 on the first straight section 410 and the film. Under the clamping action of the plurality of clamping components 300 on the first straight section 410, the film near the entrance of the air floating oven 10 will not vibrate, blocking the vibration transfer of the film in the air floating oven 10 to the film at the coating device 20, enabling the film at the coating device 20 to be smoothly conveyed, and further enabling the coating device 20 to uniformly coat the coating on the film, so it is beneficial to ensure the coating quality of the coating device 20.

[0046] Reference Figures 1 to 4, as the clamping assembly 300 moves, the clamping assembly 300 will disengage from the abutment with the second top block 430. After the clamping assembly 300 disengages from the abutment with the second top block 430, the clamping assembly 300 will release the film and leave the first straight segment 410, and so on in a cycle, enabling the clamping assembly 300 to clamp the film and move synchronously with the film after moving to the first straight segment 410, and also enabling the clamping assembly 300 to release the film after about to leave the first straight segment 410. It should be noted that since the length of the second top block 430 is less than the length of the first straight segment 410, after the clamping assembly 300 moves onto the first straight segment 410, it needs to move a further distance to abut against the lower surface of the second top block 430, that is, after the clamping assembly 300 moves onto the first straight segment 410, it needs to move a further distance to clamp one side of the film. After the clamping assembly 300 disengages from the abutment with the second top block 430, the clamping assembly 300 is still located on the first straight segment 410, and the clamping assembly 300 needs to move a further distance to leave the first straight segment 410, that is, after the clamping assembly 300 releases the film, it needs to move a further distance to leave the first straight segment 410.

[0047] In the embodiment of the present invention, the clamping assembly 300 moves synchronously with the film during the process of clamping the film, avoiding relative displacement between the clamping assembly 300 and the clamped film, and thus avoiding wrinkles in the film. It should be noted that the coating device 20 only coats the middle area of the film, and there is no coating on both sides in the width direction of the film, that is, there is no coating on the area clamped by the clamping assembly 300.

[0048] It should be noted that in the embodiment of the present invention, the two clamping and moving mechanisms 100 are mirror-symmetrically arranged, and the plurality of clamping assemblies 300 on the first straight segments 410 in the two clamping and moving mechanisms 100 are arranged in one-to-one correspondence, that is, there are a plurality of corresponding clamping assemblies 300 clamping on both sides in the width direction of the film at the same time. On the one hand, since both sides of the film are clamped by a plurality of clamping assemblies 300, under the clamping and limiting action of the clamping assemblies 300, the film cannot displace in the left-right and up-down directions. On the other hand, since the moving directions and moving speeds of the plurality of clamping assemblies 300 on both sides of the film are the same as the conveying speed of the film, the film cannot also displace in the front-back direction. In other words, the plurality of clamping assemblies 300 on both sides prevent the clamped film from displacing in the left-right and up-down directions, and also prevent the clamped film from displacing in the front-back direction, and the plurality of clamping assemblies 300 on both sides also increase the tension of the clamped film, making the clamped film unable to vibrate, and thus the clamped film blocks the vibration, avoiding the vibration of the film in the air flotation oven 10 from being transmitted to the film at the coating device 20.

[0049] ReferenceFigure 6 and Figure 7 As shown in Figure 7 , the clamping assembly 300 includes a slider 350, a first clamping arm 310, a second clamping arm 320 and an elastic member 330. The slider 350 is slidably connected to the annular slide rail 400. The slider 350 is connected to the output end of the driving assembly 200. The first clamping arm 310 is provided on the slider 350. The second clamping arm 320 is movably connected to the slider 350. An elastic member 330 is provided between the first clamping arm 310 and the second clamping arm 320. The gap between the first clamping arm 310 and the second clamping arm 320 is for one side of the film to extend into. The second clamping arm 320 can abut against the lower surface of the second top block 430 so that the second clamping arm 320 approaches the first clamping arm 310. The second clamping arm 320 can be disengaged from abutting against the second top block 430 so that the elastic member 330 can drive the second clamping arm 320 away from the first clamping arm 310 and release one side of the film by the first clamping arm 310 and the second clamping arm 320. In the embodiment of the present invention, multiple clamping assemblies 300 all include a slider 350, a first clamping arm 310, a second clamping arm 320 and an elastic member 330. The sliders 350 in multiple clamping assemblies 300 are all connected to the output end of the driving assembly 200, so that the driving assembly 200 can drive multiple sliders 350 to move cyclically on the annular slide rail 400. The lower surface of the second top block 430 can simultaneously abut against the second clamping arms 320 in multiple clamping assemblies 300 on the first straight segment 410. Here, one of the clamping assemblies 300 is described. The slider 350 is slidably connected to the annular slide rail 400, that is, the slider 350 can slide on the first straight segment 410, the second straight segment, the first arc segment and the second arc segment. The first clamping arm 310 is provided on the slider 350. The second clamping arm 320 is located above the first clamping arm 310. The lower end of the elastic member 330 is connected to the first clamping arm 310, and the upper end of the elastic arm is connected to the second clamping arm 320. The film can extend between the first clamping arm 310 and the second clamping arm 320. In the embodiment of the present invention, the elastic member 330 is a compression spring.

[0050] Since the length of the second top block 430 is less than that of the first straight segment 410, after the slider 350 enters the first straight segment 410, the first clamping arm 310 and the second clamping arm 320 are still in an open state. At this time, one side of the film has extended between the first clamping arm 310 and the second clamping arm 320. As the slider 350 moves, the second clamping arm 320 begins to abut against the lower surface of the second top block 430. Under the restrictive action of the second top block 430, the second clamping arm 320 moves downward and the elastic member 330 begins to be compressed, causing the second clamping arm 320 to approach the first clamping arm 310, so that the first clamping arm 310 and the second clamping arm 320 can clamp the film, and the first clamping arm 310 and the second clamping arm 320 move synchronously with the film. As the slider 350 continues to move, the second clamping arm 320 disengages from the abutment with the second top block 430. At this time, under the pushing action of the elastic member 330, the second clamping arm 320 rises and moves away from the first clamping arm 310, causing the first clamping arm 310 and the second clamping arm 320 to release one side of the film. At this time, the slider 350 is still located on the first straight segment 410. As the slider 350 continues to move, the slider 350, the first clamping arm 310 and the second clamping arm 320 leave the first straight segment 410. In the embodiment of the present invention, when the slider 350 is on the first arc segment, the second straight segment and the second arc segment, the first clamping arm 310 and the second clamping arm 320 are both in an open state.

[0051] Reference Figure 4 、 Figures 6 to 8 , the clamping and moving mechanism 100 further includes a first top block 440. The first top block 440 is provided on the frame 500. The first clamping arm 310 is movably connected to the slider 350. The first clamping arm 310 and the second clamping arm 320 can simultaneously abut against the first top block 440 and the second top block 430 respectively, so that the first clamping arm 310 and the second clamping arm 320 approach each other and clamp one side of the film. The first clamping arm 310 and the second clamping arm 320 can simultaneously disengage from the abutment with the first top block 440 and the second top block 430 respectively, so that the elastic member 330 drives the first clamping arm 310 and the second clamping arm 320 to move away from each other, and the first clamping arm 310 and the second clamping arm 320 release one side of the film. In the embodiment of the present invention, the first top block 440 is provided on the side of the first straight segment 410 close to the film, and the first clamping arm 310 can abut against the upper surface of the first top block 440, so that the first clamping arm 310 can rise. The first top block 440 and the second top block 430 have the same length, and the first top block 440 and the second top block 430 are mirror-symmetrically arranged.

[0052] It can be understood that after the slider 350 enters the first straight segment 410, the first clamping arm 310 and the second clamping arm 320 are still in the open state. At this time, one side of the film has extended between the first clamping arm 310 and the second clamping arm 320. As the slider 350 moves, the first clamping arm 310 begins to abut against the upper surface of the first top block 440, and the second clamping arm 320 begins to abut against the lower surface of the second top block 430. Under the limiting action of the first top block 440 and the second top block 430, the first clamping arm 310 rises, the second clamping arm 320 descends, and the elastic member 330 begins to be compressed, causing the first clamping arm 310 and the second clamping arm 320 to approach each other, so that the first clamping arm 310 and the second clamping arm 320 can clamp the film, and the first clamping arm 310 and the second clamping arm 320 move synchronously with the film. As the slider 350 continues to move, the first clamping arm 310 and the second clamping arm 320 simultaneously disengage from the abutment with the first top block 440 and the second top block 430 respectively. At this time, under the pushing action of the elastic member 330, the first clamping arm 310 descends, the second clamping arm 320 rises, and the elastic member 330 extends, causing the first clamping arm 310 and the second clamping arm 320 to move away from each other, so that the first clamping arm 310 and the second clamping arm 320 release one side of the film. At this time, the slider 350 is still located on the first straight segment 410, and one side of the film is still threaded between the first clamping arm 310 and the second clamping arm 320. As the slider 350 continues to move, the slider 350, the first clamping arm 310, and the second clamping arm 320 leave the first straight segment 410. In the embodiment of the present invention, when the slider 350 is on the first arc segment, the second straight segment, and the second arc segment, the first clamping arm 310 and the second clamping arm 320 are both in the open state. The structures of the first top block 440 and the second top block 430 are exactly the same, and the only difference is that the first top block 440 is used to make the first clamping arm 310 rise, which will not be further elaborated here. In the embodiment of the present invention, under the action of the first top block 440 and the second top block 430, the first clamping arm 310 and the second clamping arm 320 can rise and descend simultaneously and respectively, so that the first clamping arm 310 and the second clamping arm 320 can simultaneously abut against the film, so as to avoid applying a dragging force in the up and down direction to the film during the process of clamping the film by the first clamping arm 310 and the second clamping arm 320.

[0053] Reference Figures 1 to 3 、 Figure 8 , a first guiding inclined surface (not shown in the figure) is provided at one end of the first top block 440, and the first clamping arm 310 can abut against the first guiding inclined surface so that the first clamping arm 310 can abut against the upper surface of the first top block 440. A second guiding inclined surface 431 is provided at one end of the second top block 430, and the second clamping arm 320 can abut against the second guiding inclined surface 431 so that the second clamping arm 320 can abut against the lower surface of the second top block 430. Reference Figure 2 and Figure 3, on the other end of the first top block 440, there is a first buffer slope (not shown in the figure), on the other end of the second top block 430, there is a second buffer slope 432. The first clamping arm 310 and the second clamping arm 320 can simultaneously abut against the first buffer slope and the second buffer slope 432 respectively, so as to slow down the speed at which the first clamping arm 310 and the second clamping arm 320 move away from each other. In the embodiment of the present invention, at the rear end of the first top block 440, there is a first guiding slope, at the rear end of the second top block 430, there is a second guiding slope 431, at the front end of the first top block 440, there is a first buffer slope, at the front end of the second top block 430, there is a second buffer slope 432. The included angle formed by the first buffer slope and the first guiding slope faces downward, and the included angle formed by the second buffer slope 432 and the second guiding slope 431 faces upward.

[0054] After the slider 350 enters the first straight segment 410, as the slider 350 continues to move, the first clamping arm 310 begins to abut against the first guiding slope on the rear end of the first top block 440, and the second clamping arm 320 begins to abut against the second guiding slope 431 on the rear end of the second top block 430. Under the guiding action of the first guiding slope and the second guiding slope 431, the first clamping arm 310 gradually rises, and the second clamping arm 320 gradually descends, making the first clamping arm 310 and the second clamping arm 320 gradually approach. As the slider 350 continues to move, the first clamping arm 310 and the second clamping arm 320 simultaneously disengage from the abutment with the first guiding slope and the second guiding slope 431 respectively, and simultaneously abut against the upper surface of the first top block 440 and the lower surface of the second top block 430 respectively, so that the first clamping arm 310 and the second clamping arm 320 clamp one side of the film.

[0055] As the slider 350 continues to move, the first clamping arm 310 and the second clamping arm 320 respectively and simultaneously disengage from the abutment with the upper surface of the first top block 440 and the lower surface of the second top block 430, and respectively and simultaneously abut against the first buffer slope and the second buffer slope 432. Under the buffering action of the first buffer slope and the second buffer slope 432, the descending speed of the first clamping arm 310 slows down, and the ascending speed of the second clamping arm 320 slows down, making the speed at which the first clamping arm 310 and the second clamping arm 320 move away from each other slow down. Furthermore, the first clamping arm 310 and the second clamping arm 320 can release the film more smoothly, so as to reduce the impact force on the film during the releasing process, and effectively avoid the film from shaking or vibrating due to the sudden change in force caused by sudden release. On the other hand, the slow release of the first clamping arm 310 and the second clamping arm 320 can better protect the integrity and stability of the film, that is, the slow release can prevent the film from cracking due to the stress generated by rapid release.

[0056] As an embodiment of the present invention, the clamping assembly 300 further includes a first roller and a second roller. The first roller and the second roller are respectively rotatably connected to the first clamping arm 310 and the second clamping arm 320. The first clamping arm 310 abuts against the first guiding inclined surface, the upper surface of the first top block 440, and the second buffering inclined surface 432 through the first roller. The second clamping arm 320 abuts against the second guiding inclined surface 431, the lower surface of the second top block 430, and the second buffering inclined surface 432 through the second roller. It can be understood that the first roller can reduce the friction between the first clamping arm 310 and the first top block 440, and the second roller can reduce the friction between the second clamping arm 320 and the second top block 430.

[0057] Reference Figures 6 to 8 , the clamping assembly 300 further includes a plurality of guide posts 340. A plurality of first guide holes are formed in the first clamping arm 310, and a plurality of second guide holes are formed in the second clamping arm 320. The lower ends of the plurality of guide posts 340 are respectively inserted into the plurality of first guide holes, the lower ends of the plurality of guide posts 340 are all connected to the slider 350, and the upper ends of the plurality of guide posts 340 are respectively inserted into the plurality of second guide holes. The clamping assembly 300 includes a plurality of elastic members 330. The plurality of elastic members 330 are respectively sleeved on the plurality of guide posts 340. The upper and lower ends of the elastic member 330 respectively abut against the second clamping arm 320 and the first clamping arm 310. It can be understood that the lower ends of the plurality of guide posts 340 are respectively inserted into the plurality of first guide holes in the first clamping arm 310, the upper ends of the plurality of guide posts 340 are respectively inserted into the plurality of second guide holes in the second clamping arm 320. The plurality of guide posts 340 can play a guiding role in the first clamping arm 310 and the second clamping arm 320, so that the first clamping arm 310 and the second clamping arm 320 can be lifted and lowered smoothly. The number of the elastic members 330 is plural. The plurality of elastic members 330 are respectively sleeved on the plurality of guide posts 340. The guide posts 340 can play a guiding role in the elastic members 330, so that the elastic members 330 can be compressed and stretched smoothly. In the embodiment of the present invention, a plurality of receiving grooves are provided on the first clamping arm 310. The plurality of receiving grooves are respectively communicated with the plurality of first guide holes. The lower ends of the plurality of guide posts 340 are respectively inserted into the plurality of receiving grooves. The lower ends of the plurality of elastic members 330 respectively extend into the plurality of receiving grooves. The lower ends of the plurality of elastic members 330 are respectively connected to the inner bottom walls of the plurality of receiving grooves. After the elastic member 330 is compressed, the compressed elastic member 330 can completely enter the receiving groove to avoid interference of the elastic member 330 on the first clamping arm 310 and the second clamping arm 320, so that the first clamping arm 310 and the second clamping arm 320 can clamp the film smoothly.

[0058] Reference Figure 6, the driving assembly 200 includes a motor, a synchronous belt 210, a driven pulley 220 and a driving pulley 230. The motor is arranged on the frame 500. The driven pulley 220 and the driving pulley 230 are both arranged in the area surrounded by the annular slide rail 400. The driven pulley 220 and the driving pulley 230 are both rotatably connected to the frame 500. The synchronous belt 210 is wound around the driven pulley 220 and the driving pulley 230. The synchronous belt 210 is connected to a plurality of clamping assemblies 300. The motor is used to drive the driving pulley 230 to rotate, so that the synchronous belt 210 can drive a plurality of clamping assemblies 300 to move in a cycle on the annular slide rail 400. It can be understood that the synchronous belt 210 is connected to the slider 350 in a plurality of clamping assemblies 300. The motor drives the driving pulley 230 to rotate, so that the synchronous belt 210 and the driven pulley 220 rotate together. Since the synchronous belt 210 is connected to the slider 350 in a plurality of clamping assemblies 300, the rotating synchronous belt 210 can drive a plurality of sliders 350 to move in a cycle on the annular slide rail 400. In the embodiment of the present invention, the driven pulley 220 and the driving pulley 230 are arranged on the frame 500 in the front-rear direction, so that a part of the synchronous belt 210 wound around the driven pulley 220 and the driving pulley 230 is parallel to the front-rear direction. In the embodiment of the present invention, the output power of the motor is constant, so that the rotation speeds of the driving pulley 230, the driven pulley 220 and the synchronous belt 210 are constant, and further the moving speeds of a plurality of sliders 350 on the first straight segment 410 are constant, and the moving speeds of a plurality of sliders 350 on the first straight segment 410 are the same as the conveying speed of the film.

[0059] In the embodiment of the present invention, the film vibration blocking device further includes a speed sensor. The speed sensor is used to detect the conveying speed of the film in real time. The speed sensor is electrically connected to the motor, so that the output power of the motor can be adjusted according to the conveying speed of the film. It can be understood that the speed sensor can detect the real-time conveying speed of the film, and the motor adjusts the output power according to the current conveying speed of the film, so that the speeds of a plurality of sliders 350 on the first straight segment 410 can always be consistent with the conveying speed of the film, so as to avoid relative displacement between the first clamping arm 310 and the second clamping arm 320 and the film.

[0060] As an embodiment of the present invention, the drive assembly 200 further includes two limiting plates. Both limiting plates are parallel to the first straight segment 410. Both limiting plates are provided on the frame 500. The gap between the two limiting plates is for a part of the synchronous belt 210 to pass through. It can be understood that the lengths of the two limiting plates are parallel to the first straight segment 410. Both limiting plates are provided between the driven pulley 220 and the driving pulley 230. The gap between the two limiting plates allows a part of the synchronous belt 210 to pass through, so that the two limiting plates can limit a part of the synchronous belt 210, and further enable this part of the synchronous belt 210 to remain straight and parallel to the front-rear direction, so as to ensure that this part of the synchronous belt 210 can stably drive the plurality of sliders 350 on the first straight segment 410 to move, and ensure that the speeds of the plurality of sliders 350 on the first straight segment 410 do not fluctuate. In the embodiment of the present invention, the drive assembly 200 further includes a tensioning sprocket. The tensioning sprocket is rotatably connected to the frame 500. The tensioning sprocket is provided in the area surrounded by the annular slide rail 400. The tensioning sprocket abuts against the synchronous belt 210 to increase the tension of the synchronous belt 210. The function of the tensioning sprocket will not be further elaborated here.

[0061] As an embodiment of the present invention, both of the clamping and moving mechanisms 100 are slidably connected to the frame 500 so that the distance between the two clamping and moving mechanisms 100 is adjustable. It can be understood that both of the clamping and moving mechanisms 100 are slidably connected to the frame 500 in the left-right direction, so that the distance between the two clamping and moving mechanisms 100 can be adjusted according to films of different widths, and further enable the two clamping and moving mechanisms 100 to clamp films of different widths, which is beneficial to improving the use flexibility of the film vibration blocking device. As an embodiment of the present invention, the film vibration blocking device further includes a lead screw-nut drive assembly 200 and two bases. Both bases are slidably connected to the frame 500. The two clamping and moving mechanisms 100 are respectively provided on the two bases. The lead screw-nut drive assembly 200 is used to drive the two bases to approach or move away from each other to achieve the purpose of adjusting the distance between the two clamping and moving mechanisms 100. Here, one of the bases and the clamping and moving mechanism 100 will be described. The annular slide rail 400, the drive assembly 200 and the second top block 430 in the clamping and moving mechanism 100 are all provided on the base, which will not be further elaborated here.

[0062] It should be noted that in the prior art, the stability of the drive system in the coating production line has a significant impact on the film conveying speed. If the rotational speed of the drive system becomes unstable due to power supply voltage fluctuations, poor heat dissipation, etc., it will cause fluctuations in the film conveying speed. On the other hand, if the sensitivity of the tension sensor in the tension control system of the coating production line decreases, it will cause deviations in the control of the film tension by the tension control system, thereby causing changes in the film tension, which will also lead to fluctuations in the film conveying speed. In the prior art, a pressure roller device is usually provided at the outlet of the air-floating oven 10. The pressure roller device includes two pressure rollers that can rotate actively. The two pressure rollers press on the film sent out from the air-floating oven 10 to prevent the vibration of the film in the air-floating oven 10 from being transmitted to the film in the subsequent automatic winding device. If there is a deviation in the film conveying speed, since the rotational speeds of the two pressure rollers remain unchanged, the two pressure rollers will have a relative displacement with the film. After the two pressure rollers have a relative displacement with the film, the friction force between the two pressure rollers and the film increases, and the two pressure rollers will apply a dragging force to the film to hinder the movement of the film, which is likely to cause the film to wrinkle, scratch or even break.

[0063] As another embodiment of the first clamping arm 310 and the second clamping arm 320 in the embodiment of the present invention, refer to Figure 10 and Figure 11 , the clamping assembly 300 further includes a first driven belt 311 and a second driven belt 321. The first driven belt 311 and the second driven belt 321 are both parallel to the first straight section 410. A first installation groove is formed on the first clamping arm 310, and a second installation groove is formed on the second clamping arm 320. The first driven belt 311 is rotatably connected in the first installation groove, and the second driven belt 321 is rotatably connected in the second installation groove. The first clamping arm 310 abuts against one side of the film through the first driven belt 311, and the second clamping arm 320 abuts against one side of the film through the second driven belt 321, so that when the first clamping arm 310 and the second clamping arm 320 have a relative displacement with the film, the first driven belt 311 and the second driven belt 321 can rotate.

[0064] Here, the clamping assembly 300 on one of the first straight line segments 410 is described. Since the driving speed of the driving assembly 200 remains unchanged, the moving speed of the slider 350 on the first straight line segment 410 remains unchanged. If the conveying speed of the film fluctuates, relative displacement will occur between the first clamping arm 310 and the second clamping arm 320 in the clamping assembly 300 and the film. After the relative displacement occurs between the first clamping arm 310 and the second clamping arm 320 and the film, since the first clamping arm 310 and the second clamping arm 320 are respectively abutted against one side of the film through the first driven belt and the second driven belt, that is, the first driven belt and the second driven belt clamp one side of the film, and both the first driven belt and the second driven belt can rotate, the first driven belt and the second driven belt can start to rotate under the action of the film. The rotating first driven belt and second driven belt can automatically adjust the rotation speed according to the fluctuation of the film speed, so that the first driven belt and the second driven belt can better follow the movement of the film. For example, when the conveying speed of the film increases, both the first driven belt and the second driven belt can quickly respond and accelerate rotation to reduce the relative sliding between the first driven belt and the second driven belt and the transmission belt, so that the frictional force between the first driven belt and the second driven belt and the transmission belt becomes rolling friction, greatly reducing the frictional force between the first driven belt and the second driven belt and the film, avoiding the first driven belt and the second driven belt from generating an obstructive drag force on the film, and thus avoiding wrinkles, scratches or even rupture of the film after the speed fluctuates.

[0065] In this embodiment of the invention, the clamping assembly 300 includes a plurality of first synchronous rollers and a plurality of second synchronous rollers. Both ends of the plurality of first synchronous rollers are rotatably connected to the inner side wall of the first installation groove. The first driven belt is wound around the plurality of first synchronous rollers. Tooth teeth are provided on the outer wall of the first synchronous rollers, and tooth grooves are uniformly distributed on the inner side surface of the first driven belt. The tooth teeth on the outer wall of the first synchronous rollers can extend into the tooth grooves on the inner side surface of the first driven belt, so that the first driven belt and the plurality of first synchronous rollers can rotate synchronously. Both ends of the plurality of second synchronous rollers are rotatably connected to the inner side wall of the second installation groove. The second driven belt is wound around the plurality of second synchronous rollers. Tooth teeth are provided on the outer wall of the second synchronous rollers, and tooth grooves are uniformly distributed on the inner side surface of the second driven belt. The tooth teeth on the outer wall of the second synchronous rollers can extend into the tooth grooves on the inner side surface of the second driven belt, so that the second driven belt and the plurality of second synchronous rollers can rotate synchronously, which will not be further elaborated here.

[0066] The present invention also discloses a double-unwinding and double-winding coating production line, which includes two continuous coating devices, one of the continuous coating devices is arranged above the other continuous coating device, and both continuous coating devices include an automatic unwinding device, a preheating oven, a coating device 20, a pneumatic floating oven 10, a deviation rectifying device, an automatic winding device, and a film vibration blocking device. The automatic unwinding device, the preheating oven, the coating device 20, the film vibration blocking device, the pneumatic floating oven 10, the deviation rectifying device, and the automatic winding device are arranged in sequence along the conveying path of the film. In the embodiment of the present invention, the double-unwinding and double-winding coating production line includes two continuous coating devices that can independently perform coating processing on the film, so the coating efficiency of the film can be significantly improved. Each continuous coating device includes an automatic unwinding device, a preheating oven, a coating device 20, a film vibration blocking device, a pneumatic floating oven 10, a deviation rectifying device, and an automatic winding device, which are arranged from back to front. The film vibration blocking device can prevent the film between the coating device 20 and the pneumatic floating oven 10 from vibrating, which is beneficial to improving the coating quality of the coating device 20, and further beneficial to improving the quality of the film product processed by the continuous coating device. The automatic unwinding device, the preheating oven, the coating device 20, the pneumatic floating oven 10, the deviation rectifying device, and the automatic winding device are all common devices in the coating technical field, and will not be further described here.

[0067] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0068] Certainly, the present invention is not limited to the above-described embodiments. Those skilled in the art can also make equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A film vibration blocking device, characterized in that: include: A frame and two clamping and moving mechanisms, the two clamping and moving mechanisms are respectively used to clamp two sides of the film, the clamping and moving mechanisms include an annular slide rail, a driving assembly, a second top block and a plurality of clamping assemblies, the annular slide rail is arranged on the frame, the driving assembly is used to drive the plurality of clamping assemblies to cyclically move on the annular slide rail, the annular slide rail has a first straight section, the plurality of clamping assemblies on the first straight section can all move synchronously with the film, and the second top block is arranged on the frame and located above the first straight section; The clamping assembly includes a slider, a first clamping arm, a second clamping arm, an elastic member, a first driven belt and a second driven belt, the slider is slidably connected to the annular slide rail and connected to the output end of the driving assembly, the first clamping arm is arranged on the slider, the second clamping arm is lifted and connected to the slider and is located above the first clamping arm, the elastic member is arranged between the first clamping arm and the second clamping arm, the second clamping arm can abut against the lower surface of the second top block so that the second clamping arm and the first clamping arm clamp one side of the film, the second clamping arm can be separated from the abutment with the second top block so that the elastic member drives the second clamping arm away from the first clamping arm and makes the first clamping arm and the second clamping arm release one side of the film, the first driven belt is rotatably connected to the first clamping arm, the second driven belt is rotatably connected to the second clamping arm, the first clamping arm and the second clamping arm are respectively abutted against one side of the film through the first driven belt and the second driven belt, so that when the first clamping arm and the second clamping arm are relatively displaced with the film, the first driven belt and the second driven belt can rotate.

2. The film vibration blocking device according to claim 1, characterized in that: The clamping and moving mechanism also includes a first top block, which is arranged on the frame, and the first clamping arm is movably connected to the slider, and the first clamping arm and the second clamping arm can respectively abut against the first top block and the second top block at the same time, so that the first clamping arm and the second clamping arm are close to each other and clamp one side of the film, and the first clamping arm and the second clamping arm can respectively break away from the abutment with the first top block and the second top block at the same time, so that the elastic member drives the first clamping arm and the second clamping arm to move away from each other and make the first clamping arm and the second clamping arm release one side of the film.

3. The film vibration blocking device according to claim 2, characterized in that: A first guiding slope is provided on one end of the first top block, and the first clamping arm can be abutted against the first guiding slope so that the first clamping arm can be abutted against the upper surface of the first top block. A second guiding slope is provided on one end of the second top block, and the second clamping arm can be abutted against the second guiding slope so that the second clamping arm can be abutted against the lower surface of the second top block.

4. The film vibration blocking device according to claim 2, characterized in that: A first buffer slope is provided on the other end of the first top block, and a second buffer slope is provided on the other end of the second top block. The first clamp arm and the second clamp arm can respectively abut against the first buffer slope and the second buffer slope at the same time to slow down the speed at which the first clamp arm and the second clamp arm move away from each other.

5. The film vibration blocking device according to claim 2, characterized in that: The clamping assembly also includes a plurality of guide pillars, a plurality of first guide holes are formed on the first clamping arm, a plurality of second guide holes are formed on the second clamping arm, the lower ends of the plurality of guide pillars are respectively inserted into the plurality of first guide holes, the lower ends of the plurality of guide pillars are all connected to the slider, and the upper ends of the plurality of guide pillars are respectively inserted into the plurality of second guide holes.

6. The film vibration blocking device according to claim 5, characterized in that: The clamping assembly includes a plurality of elastic members, which are respectively sleeved on a plurality of guide pillars, and the upper and lower ends of the elastic members are respectively against the second clamping arm and the first clamping arm.

7. The film vibration blocking device according to claim 1, characterized in that: The two clamping and moving mechanisms are both slidably connected to the frame, so that the distance between the two clamping and moving mechanisms is adjustable.

8. A double-release and double-receive coating production line, characterized in that: The invention comprises two continuous coating devices, wherein one of the continuous coating devices is arranged above the other continuous coating device, and both of the two continuous coating devices comprise an automatic unwinding device, a preheating oven, a coating device, an air flotation oven, a deviation correcting device, an automatic winding device, and a film vibration blocking device as described in any one of claims 1 to 7, wherein the automatic unwinding device, the preheating oven, the coating device, the film vibration blocking device, the air flotation oven, the deviation correcting device, and the automatic winding device are arranged in sequence along the conveying path of the film.

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