Film metamaterial base material laminating device

Abstract

The utility model discloses a film metamaterial base material laminating device which comprises an unwinding mechanism for unwinding a metamaterial film and a laminating film, and further comprises a pushing mechanism for pushing a film material, the pushing mechanism comprises a pair of pushing rollers which are matched with each other, and the pushing rollers are driven by a driving structure; the anti-dislocation pressing rod structure is matched with the pushing roller; the anti-dislocation pressing rod structure comprises a plurality of anti-dislocation pressing rods penetrating through the pushing rollers, groove body structures matched with the anti-dislocation pressing rods are formed in the pushing rollers, and the anti-dislocation pressing rods penetrate through the groove body structures; the film is pressed down and attached through an anti-dislocation pressing rod; the height of the anti-dislocation pressing rod is adjusted through an adjusting support structure. By means of the structure, in the metamaterial film laminating process, stability and accuracy of film laminating are kept, and the technical defect that two films with different material attributes are prone to deviation and disengagement in the film laminating process is effectively overcome.

Description

Technical Field

[0001] This utility model belongs to the field of thin film metamaterial coating technology, and particularly relates to a thin film metamaterial substrate coating device. Background Technology

[0002] Thin-film metamaterials are artificially modified metamaterial films that differ from traditional films. Because of this modification, metamaterial films possess properties not found in traditional films, such as noise reduction, wave absorption, and electromagnetic interference resistance. Therefore, metamaterial films have a wide range of industrial applications, including in many fields such as electronics.

[0003] In the production and processing of thin-film metamaterials, a protective film is often applied to the functional metamaterial film after it has been formed. This protective film safeguards the functional metamaterial film from damage.

[0004] The lamination is carried out using lamination equipment. The main structure includes unwinding and lamination equipment as well as unwinding equipment for metamaterial films. After unwinding, the film is pulled and moved by roller conveyor equipment and then undergoes layer-by-layer rolling to form the initial lamination. Finally, the finished film is formed by hot pressing and other methods.

[0005] When the film is unwound, during the roller conveying process, due to the low material properties of the coated film and the metamaterial film, the adhesion between the films is not ideal. During the film pulling process in the roller conveying equipment, the two layers of film with poor adhesion are prone to detachment from the lower metamaterial film due to the floating of the upper coated film. During the rolling process, once the upper coated film detaches from the lower metamaterial film, the films are very prone to misalignment. This manifests as misalignment between the film edges and, after roller conveying, a "film folding" phenomenon occurs on the lower metamaterial film, meaning the upper coated film cannot evenly cover the lower metamaterial film. This results in numerous areas of inaccurate lamination in the final finished film. Utility Model Content

[0006] Based on the above background, the purpose of this utility model is to provide a film metamaterial substrate coating device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A film metamaterial substrate coating apparatus includes an unwinding mechanism for the metamaterial film and a coating unwinding mechanism, and a pushing mechanism for pushing the film material. The pushing mechanism includes a pair of pushing rollers that cooperate with each other and are driven by a drive structure. It also includes an anti-misalignment pressure bar structure that cooperates with the pushing rollers.

[0009] The anti-misalignment pressure bar structure includes several anti-misalignment pressure bars that pass through the push rollers. The push rollers are provided with groove structures that cooperate with the anti-misalignment pressure bars, and the anti-misalignment pressure bars pass through the groove structures.

[0010] The membrane is bonded by pressing down with anti-misalignment pressure bars;

[0011] The height of the anti-misalignment pressure bar is adjustable through the adjustable bracket structure.

[0012] Preferably, the two sides of the pushing mechanism are rotatably connected to a frame;

[0013] The frames are rotatably connected by a first push roller and a second push roller arranged symmetrically at the top and bottom.

[0014] The drive structure includes driven gears respectively installed at one end of the first push roller and the second push roller, and the driven gears mesh with each other;

[0015] It also includes a drive motor, on the output shaft of which is mounted a drive gear that meshes with the driven gear.

[0016] Preferably, the groove structure includes a plurality of annular grooves respectively formed on the first push roller and the second push roller;

[0017] The annular grooves form a pressure bar channel that cooperates with the anti-misalignment pressure bar;

[0018] The diameter of the anti-misalignment pressure bar is smaller than the diameter of the pressure bar channel.

[0019] Preferably, pressure rollers are rotatably connected to both ends of the anti-misalignment pressure rod.

[0020] Preferably, the adjusting bracket structure includes several vertical support rods that are respectively vertically fixed to both sides of the anti-misalignment pressure rod;

[0021] A frame connecting bracket is fixedly connected between the tops of the vertical support rods;

[0022] The adjustment bracket structure also includes several adjustment screws fixedly connected to the top of the frame, and the adjustment screws are slidably connected to the frame and the bracket.

[0023] The adjusting screw is threaded with a pair of locking nuts positioned at the top and bottom of the frame connecting bracket.

[0024] Preferably, a film-coating and pressing mechanism located at the discharge end of the pushing mechanism is assembled and connected between the frames;

[0025] The laminating and pressing mechanism includes a pair of pressure rollers that are rotatably connected.

[0026] Preferably, a composite film alignment mechanism located at the discharge end of the film laminating mechanism is assembled and connected between the frames.

[0027] Preferably, the composite film alignment mechanism includes an alignment bracket, and a horizontally arranged horizontal roller is rotatably connected to the top of the alignment bracket;

[0028] The two sides of the alignment bracket are respectively rotatably connected to side push rollers for pushing the composite film.

[0029] It also includes a positioning structure for adjusting the posture of the alignment support.

[0030] Preferably, the adjustment structure includes a base fixedly connected between the frames, and a correction turntable rotatably connected to the bottom center of the correction bracket is fixedly connected to the base.

[0031] The two sides of the correction turntable are respectively hinged with electric push rods that drive the correction turntable to rotate clockwise and counterclockwise.

[0032] Preferably, the unwinding mechanism includes an unwinding bracket, on which a plurality of film rolls are detachably mounted;

[0033] It also drives the unwinding bracket to rotate.

[0034] This utility model has the following beneficial effects:

[0035] 1. The anti-misalignment pressure bar mechanism solves the problem that the upper layer of film and the lower layer of metamaterial film have different material properties. Therefore, in order to prevent the upper layer of film from detaching from the metamaterial film during the roller pushing process, the film adhesion is reduced and the upper layer of film will fold on the metamaterial film. That is, the film will be misaligned and folded due to misalignment.

[0036] 2. The downward pressure of the anti-misalignment pressure bar is adjustable. If the membrane material becomes slightly loose and the stability of the roller conveying decreases, the downward pressure on the membrane can be increased by lowering the height of the anti-misalignment pressure bar, thereby improving the tensioning effect and increasing the stability of the conveying.

[0037] 3. The composite membrane alignment mechanism corrects misaligned membranes, ensuring accurate membrane transport and preparing for subsequent lamination. This solves the problem of insufficient lamination caused by membrane misalignment during transport. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0040] Figure 2 This is a schematic diagram of the unwinding mechanism in an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the anti-misalignment pressure bar structure in an embodiment of the present invention;

[0042] Figure 4 This is a schematic diagram of the pressure roller in an embodiment of the present invention;

[0043] Figure 5 This is an embodiment of the present utility model. Figure 1 The right view in the middle;

[0044] Figure 6 This is a schematic diagram of the composite membrane alignment mechanism in an embodiment of the present invention;

[0045] Figure 7 This is an embodiment of the present utility model. Figure 1 Top view in the middle;

[0046] Figure 8 This is a schematic diagram of the pressure bar channel in an embodiment of the present invention.

[0047] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0049] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0050] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0051] Example 1

[0052] like Figure 1-8 As shown, a film metamaterial substrate coating device includes an unwinding metamaterial film and an unwinding mechanism 1 for coating. Specifically, the unwinding mechanism 1 is a conventional unwinding device for unwinding film material used in existing coating production lines. Similar to existing unwinding devices, the main structure of the unwinding mechanism 1 includes an unwinding support 12, which includes annular supports rotatably connected to the front and rear sides. Several film rolls 122 are detachably mounted between the annular supports. The device winds the metamaterial film and the film roll (which includes the film roll material and the spool for winding the film) to be coated. Specifically, similar to existing methods, several locking seats for locking the spools are fixedly installed on the annular supports. During the feeding and winding process, both ends of the spools are placed in the locking grooves of the locking seats and fixed by means such as bolts.

[0053] Simultaneously, the unwinding mechanism 1 drives the unwinding support 12 to rotate the main unit 11 (the main unit is a positioner disclosed in the prior art, and the motor inside the main unit 11 drives the unwinding mechanism 1 to rotate and switch the film roll). Specifically, flanges are rotatably connected to the main units 11 on both sides, and the flanges are mounted on flanges fixed on the annular support. Similar to the structure of existing unwinding devices, the motor that drives the flanges to rotate is installed inside the casing of the main unit 11. During operation, the film roll is switched by rotating the annular support. For example, after the film roll is unwound, the film roll on the unwinding support 12 is rotated to the corresponding position and then unwound again.

[0054] The coating is unwound from the top position, and the metamaterial membrane is unwound from the bottom position. Then, the membrane is pulled and transported by the pushing mechanism 3. During the pulling process, the coating and the metamaterial membrane are initially bonded together.

[0055] Specifically, similar to existing roller structures for moving film material, the pushing mechanism 3 includes a pair of cooperating pushing rollers. Specifically, the pushing mechanism 3 has a frame 2 rotatably connected to its front and rear sides; a first pushing roller 31 and a second pushing roller 32, symmetrically arranged vertically, are rotatably connected between the frames 2. Similar to existing pushing rollers, the first pushing roller 31 and the second pushing roller 32 are made of rubber, utilizing the elasticity of the rollers to push the double-layered film.

[0056] Similarly, the drive structure 33 includes driven gears respectively installed at one end of the first push roller 31 and the second push roller 32, and the driven gears mesh with each other. Specifically, the front and rear ends of the first push roller 31 and the second push roller 32 are respectively fixedly installed with rotating shafts, and the frame 2 is equipped with matching bearings.

[0057] A driven gear meshing with the driven gear is mounted on the rear shaft. A drive motor is also included, and a driving gear meshing with the driven gear is mounted on the output shaft of the drive motor. A motor bracket is fixedly mounted on the bottom of the motor in the conventional manner.

[0058] When driven by the motor, the first push roller 31 and the second push roller 32 respectively provide frictional power to the film from the top and bottom of the bonded double-layer film, pulling the film to the right side.

[0059] Because the upper film and the lower metamaterial film have significantly different material properties, to prevent the upper film from detaching from the metamaterial film during roller pushing and causing it to "float" and separate, resulting in reduced film adhesion and "film folding" on the metamaterial film (i.e., misalignment and folding), this invention employs an anti-misalignment pressure bar structure 34 to press down on the upper film, preventing separation and maintaining a high degree of adhesion between the two films.

[0060] Specifically, the anti-misalignment pressure bar structure 34 includes a plurality of anti-misalignment pressure bars 341 that pass through between the push rollers. The anti-misalignment pressure bars 341 are spaced apart front and back, and the left and right ends are located on the left and right sides of the first push roller 31 and the second push roller 32, respectively.

[0061] Correspondingly, the push roller has a groove structure that cooperates with the anti-misalignment pressure rod 341, which passes through the groove structure. Specifically, the groove structure includes several annular grooves A respectively formed on the first push roller 31 and the second push roller 32; the annular grooves A form a pressure rod channel that cooperates with the anti-misalignment pressure rod 341. The anti-misalignment pressure rod 341 passes through the pressure rod channel.

[0062] During the normal conveying of membrane material, the membrane material is first squeezed between the first push roller 31 and the second push roller 32, while the anti-misalignment pressure bar 341 presses the film from the upper layer downwards, so it does not affect the normal conveying of the membrane.

[0063] During the rotation of the first push roller 31 and the second push roller 32 to pull the film material, there is a certain safety gap between the anti-misalignment pressure bar 341 and the pressure bar channel (the diameter of the anti-misalignment pressure bar 341 is smaller than the diameter of the pressure bar channel). Specifically, the pressure bar channel is formed between the annular grooves on the first push roller 31 and the second push roller 32. Therefore, the pressure bar channel is actually composed of annular grooves, and its shape is similar to a circular hole.

[0064] A certain safety gap is formed between the anti-misalignment pressure bar 341 and the pressure bar channel to keep the anti-misalignment pressure bar 341 stable during the rotation of the roller (without friction with the roller). Therefore, in this way, the double-layer film is actually under the pressure of the anti-misalignment pressure bar 341, that is, the double-layer film does not separate during the transmission process, avoiding the upper film from detaching from the lower metamaterial film, while maintaining stable transmission.

[0065] Meanwhile, to prevent the membrane material from rubbing against the left and right ends of the anti-misalignment pressure bar 341, pressure rollers 3411 are rotatably connected to both ends of the anti-misalignment pressure bar 341. That is, the pressure rollers 3411 press down on the membrane, so that the membrane is not easily punctured by the sharp ends of the anti-misalignment pressure bar 341.

[0066] Example 2

[0067] like Figure 1-8 As shown, this embodiment, based on the structure of Embodiment 1, adjusts the downward pressure of the anti-misalignment pressure bar 341 appropriately according to the degree of relaxation of the membrane material. If the membrane material is slightly relaxed, the smoothness of the roller conveying decreases. By lowering the height of the anti-misalignment pressure bar 341, the downward pressure on the membrane is increased, improving the tensioning effect and increasing the stability of the conveying.

[0068] Specifically, the anti-misalignment pressure bar 341 is height-adjustable via an adjustable support structure. The adjustable support structure includes several vertical support rods 342, which are respectively vertically fixed to both sides of the anti-misalignment pressure bar 341.

[0069] Meanwhile, a frame connecting bracket 343 (with a rectangular cross-section) is fixedly connected between the tops of the vertical support rods 342; the adjusting bracket structure also includes four adjusting screws 344 fixedly connected to the top of the frame 2, and the adjusting screws 344 are slidably connected to the frame connecting bracket 343; the four adjusting screws 344 are arranged in a rectangular distribution at the four corners of the frame connecting bracket 343.

[0070] Meanwhile, a pair of locking nuts are threaded onto the adjusting screw 344 and positioned at the top and bottom of the frame connecting bracket 343.

[0071] The tension adjustment method is as follows: after loosening the locking nut, slightly slide down the adjusting frame connecting bracket 343, and the anti-misalignment pressure rod 341 fixed on the frame connecting bracket 343 will increase the pressure on the film material.

[0072] Because there is a certain gap between the anti-misalignment pressure bar 341 and the pressure bar channel, it is possible to make appropriate position adjustments.

[0073] Example 3

[0074] like Figure 1-8 As shown, this embodiment is based on the structure of embodiment 2, and is the same as the pressing and bonding structure for the initial pressing of double-layer film in the existing film coating device. A film coating pressing mechanism 4 located at the discharge end of the pushing mechanism 3 is assembled and connected between the frames 2. The film coating pressing mechanism 4 includes a pair of pressure rollers that are rotatably connected. Specifically, the two ends of the pressure rollers are equipped with rotating shafts, and bearings are installed on the frame 2 accordingly.

[0075] After the double-layer film is initially bonded after being pushed, it passes through the gap between the pressure rollers and is further bonded by the gravity pressing action of the pressure rollers. In actual operation, in order to increase the gravity pressing effect, each pressure roller can be equipped with a motor (not shown in the figure). The motor drives the pressure roller to rotate (the rotation direction is counterclockwise for the upper roller and clockwise for the lower roller, and the upper and lower pressure rollers provide rolling friction power while pressing).

[0076] After lamination, the double-layer film is fully laminated by subsequent hot pressing (i.e., in actual operation, a hot pressing device is also provided on the right end of frame 2 to achieve full lamination after hot pressing of the film; the hot pressing device is not shown in the figure).

[0077] Example 4

[0078] like Figure 1-8 As shown, in this embodiment, based on the structure of embodiment 3, after the double-layer film has been fed and pressed by the rollers, the film adhesion is already very high, which prepares for subsequent hot pressing (hot pressing roller body).

[0079] At this point, in order to ensure the precise positioning of the membrane material and the roller, and to avoid misalignment between the membrane and the hot-pressing roller, which could lead to insufficient hot pressing of the double-layer membrane and leakage areas, the following improvements are made:

[0080] A composite film alignment mechanism 5 is assembled and connected between the frames 2 and located at the discharge end of the film laminating mechanism 4. After initial lamination by the film laminating mechanism, the metamaterial film is laminated into a composite film. The composite film alignment mechanism 5 is used to adjust the transmission deviation of the composite film.

[0081] Specifically, the composite film alignment mechanism 5 includes an alignment bracket 51, the top of which is rotatably connected to a horizontally arranged horizontal roller 52 (end seats for rotatably connecting the horizontal roller 52 are welded to both sides of the top of the alignment bracket 51). The film is supported on the horizontal roller 52. Simultaneously, side push rollers 54 (with an overall V-shaped structure) for pushing the composite film are rotatably connected to both sides of the alignment bracket 51. The side push rollers 54 are inclined, with both sides in a double-open posture. Similarly, the two sides of the alignment bracket 51 are inclined portions facing outwards, and a pair of vertically arranged end seats are welded to the inclined portions, with the side push rollers 54 rotatably connected to the end seats.

[0082] It also includes an adjustment structure for adjusting the posture of the alignment support 51. The adjustment structure includes a base fixedly connected to the frame 2, and a correction turntable 55 rotatably connected to the bottom center of the alignment support 51 is fixedly connected to the base. Specifically, a fixed shaft 511 is fixedly connected to the bottom center of the alignment support 51, and the fixed shaft is fixedly connected to the correction turntable 55, in the same way as the existing rotatable connection method. A rotating shaft rotatably connected to the bottom center of the correction turntable 55 is fixedly connected to the base.

[0083] Electric push rods 56 (which are conventional electric telescopic rods disclosed in the prior art) are hinged to both sides of the correction turntable 55 to drive the correction turntable 55 to rotate clockwise and counterclockwise, respectively. Specifically, the electric push rods 56 on both sides push in opposite directions.

[0084] The hinge method is as follows: pins are fixedly connected to the eccentric positions on both sides of the correction turntable 55, and the pushing end of the electric push rod 56 is fixedly connected to the hinge seat with the hinge pin. Similarly, the pin rod of the hinged electric push rod 56 is fixedly connected to the base, and the electric push rod is fixedly connected to the matching hinge tongue.

[0085] During operation, when the conveyed membrane deviates, such as shifting forward, the deviated end of the membrane touches the front push roller 54. At this time, the electric push rods 56 on both sides cooperate to pull the correction turntable 55 to rotate. During the rotation, the front push roller 54 pushes the membrane backward (at this time, the correction turntable 55 rotates counterclockwise). This method is used to push the deviated membrane back (the composite membrane material has a certain degree of hardness and can be reset under repeated pushing; the reset posture is: the membrane is horizontally supported on the horizontal roller 52, with both sides equidistant from the two ends of the horizontal roller 52).

[0086] The aforementioned electric actuator 56 is a conventional electric telescopic rod disclosed in the prior art. In actual operation, after debugging, the electric actuator 56 with the best driving force is selected for use to ensure that the electric actuator 56 has sufficient driving force to drive the composite membrane alignment mechanism 5.

[0087] The above structure enables the membrane misalignment correction at position 5 of the composite membrane alignment mechanism to correct the membrane material that has been misaligned during transmission, thus preparing for subsequent precise hot pressing.

[0088] During the rotation of the correction turntable 55, the alignment bracket 51 rotates. Therefore, in order to increase the stability of the rotation of the alignment bracket 51, rollers 53 are installed on both sides of the bottom of the alignment bracket 51 in the existing way, so that the alignment bracket 51 rolls on the base during the rotation.

[0089] In actual operation, the width of the base can be increased to allow the rollers 53 to support the rotation of the offset bracket 51.

[0090] Example 5

[0091] like Figure 1-8 As shown, in this embodiment, based on the structure of embodiment 4, in order to accurately determine the deviation of the transmitted membrane material during actual operation, sensors such as high-sensitivity pressure sensors (not shown in the figure) are installed on the frames 2 on both sides in the existing manner. When the membrane touches the pressure sensor on one side, the pressure sensor senses the touch pressure signal, thereby realizing real-time monitoring of the transmission status of the membrane and reacting immediately.

[0092] The use of pressure sensors to sense offset transmission is a common application in existing coating processes.

[0093] In actual operation, the pressure sensor and electric push rod 56 are controlled by a PLC control program disclosed in the prior art. That is, when the pressure sensor senses the pressure signal, the corresponding electric push rod 56 drives the alignment bracket 51 to rotate and push the membrane to correct the misalignment.

[0094] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A film metamaterial substrate coating apparatus, comprising an unwinding mechanism for the metamaterial film and a coating unwinding mechanism, and a pushing mechanism for pushing the film material, wherein the pushing mechanism comprises a pair of cooperating pushing rollers, the pushing rollers being driven by a drive structure; characterized in that, It also includes an anti-misalignment pressure bar structure that works in conjunction with the push roller; The anti-misalignment pressure bar structure includes several anti-misalignment pressure bars that pass through the push rollers. The push rollers are provided with groove structures that cooperate with the anti-misalignment pressure bars, and the anti-misalignment pressure bars pass through the groove structures. The membrane is bonded by pressing down with anti-misalignment pressure bars; The height of the anti-misalignment pressure bar is adjustable through the adjustable bracket structure.

2. The thin-film metamaterial substrate coating device according to claim 1, characterized in that, The push mechanism is rotatably connected to a frame on both sides; The frames are rotatably connected by a first push roller and a second push roller arranged symmetrically at the top and bottom. The drive structure includes driven gears respectively installed at one end of the first push roller and the second push roller, and the driven gears mesh with each other; It also includes a drive motor, on the output shaft of which is mounted a drive gear that meshes with the driven gear.

3. The thin-film metamaterial substrate coating device according to claim 2, characterized in that, The groove structure includes several annular grooves respectively opened on the first push roller and the second push roller; The annular grooves form a pressure bar channel that cooperates with the anti-misalignment pressure bar; The diameter of the anti-misalignment pressure bar is smaller than the diameter of the pressure bar channel.

4. The thin-film metamaterial substrate coating device according to claim 3, characterized in that, The anti-misalignment pressure rod is rotatably connected to pressure rollers at both ends.

5. The thin-film metamaterial substrate coating device according to claim 3, characterized in that, The adjusting bracket structure includes several vertical support rods that are respectively vertically fixed to both sides of the anti-misalignment pressure rod; A frame connecting bracket is fixedly connected between the tops of the vertical support rods; The adjustment bracket structure also includes several adjustment screws fixedly connected to the top of the frame, and the adjustment screws are slidably connected to the frame and the bracket. The adjusting screw is threaded with a pair of locking nuts positioned at the top and bottom of the frame connecting bracket.

6. The thin-film metamaterial substrate coating device according to claim 2, characterized in that, A film-coating mechanism located at the discharge end of the pushing mechanism is assembled and connected between the frames; The laminating and pressing mechanism includes a pair of pressure rollers that are rotatably connected.

7. The thin-film metamaterial substrate coating device according to claim 2, characterized in that, A composite film alignment mechanism located at the discharge end of the film laminating mechanism is assembled and connected between the frames.

8. The thin-film metamaterial substrate coating device according to claim 7, characterized in that, The composite film alignment mechanism includes an alignment bracket, and a horizontally arranged horizontal roller is rotatably connected to the top of the alignment bracket. The two sides of the alignment bracket are respectively rotatably connected to side push rollers for pushing the composite film. It also includes a positioning structure for adjusting the posture of the alignment support.

9. The thin-film metamaterial substrate coating device according to claim 8, characterized in that, The adjustment structure includes a base fixedly connected between the frames, and a correction turntable rotatably connected to the bottom center of the correction bracket. The two sides of the correction turntable are respectively hinged with electric push rods that drive the correction turntable to rotate clockwise and counterclockwise.

10. The thin-film metamaterial substrate coating device according to claim 1, characterized in that, The unwinding mechanism includes an unwinding bracket, on which several film rolls are detachably mounted. It also drives the unwinding bracket to rotate.

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