Preparation device of ink-jet printing flexible electromagnetic metamaterial and operation method thereof

Abstract

The invention belongs to the technical field of printing electromagnetic materials, and particularly relates to an ink-jet printing flexible electromagnetic metamaterial preparation device which comprises a rack, a supporting platform is fixedly connected to the interior of the rack, and a supporting frame is fixedly connected to the upper surface of the supporting platform; an unwinding mechanism used for fixing the raw material roll is arranged between the raw material roll and the supporting platform; an adjusting mechanism used for fixing the ink-jet printer body is arranged between the ink-jet printer body and the supporting platform; the reduction soaking pool is fixedly connected with the upper surface of the supporting platform; the conveying frame is rotationally connected with a plurality of first transmission rollers; and a winding mechanism used for fixing the material receiving roll is arranged between the material receiving roll and the supporting platform. The invention further provides an operation method of the ink-jet printing flexible electromagnetic metamaterial. The ink-jet printing flexible electromagnetic metamaterial has the advantages that a roll-to-roll preparation process is adopted, the production period is remarkably shortened, the production efficiency is improved, and the large-scale industrial production requirement is met.

Description

Technical Field

[0001] The present invention belongs to the technical field of printed electromagnetic materials, and specifically relates to a preparation device for inkjet printed flexible electromagnetic metamaterials and an operating method thereof. Background Art

[0002] With the rapid development of modern electronic technology, the demand for materials with special electromagnetic properties is growing. Flexible electromagnetic metamaterials have attracted widespread attention due to their potential applications in wearable electronics, flexible displays, electromagnetic shielding, electromagnetic compatibility, etc. Flexible electromagnetic metamaterials have broad application prospects in electronics, communications, medical treatment, military and other fields due to their unique electromagnetic properties and adjustability.

[0003] However, there are some limitations in the traditional preparation method of flexible electromagnetic metamaterials. The traditional preparation process is mostly batch production. The PI film raw material is transported to the preparation device in the form of a single plate, and then the PI film raw material is sprayed with silver ink, and then it is collected through a reduction reaction. The existing preparation method cannot achieve continuous production, and a single piece of PI film raw material needs to be continuously transported to the preparation device, resulting in low production efficiency. Summary of the invention

[0004] In order to solve the problems in the above-mentioned background technology, the present invention provides a preparation device and a preparation method of inkjet-printed flexible electromagnetic metamaterials. In the preparation process of inkjet-printed flexible electromagnetic metamaterials, a roll-to-roll method of unwinding a raw material roll and collecting a material roll is adopted. The PI film can continuously pass through the inkjet printer body, the reduction immersion tank and the conveyor rack in sequence to complete the preparation of the flexible electromagnetic metamaterial, which greatly improves the preparation speed of the flexible electromagnetic metamaterial. Compared with the traditional batch processing method of a single PI film, the roll-to-roll preparation process significantly shortens the production cycle, improves production efficiency, and meets the needs of large-scale industrial production.

[0005] The present invention provides a device for preparing an inkjet-printed flexible electromagnetic metamaterial, comprising:

[0006] A frame, wherein the interior of the frame is fixedly connected to a support platform, and the upper surface of the support platform is fixedly connected to a support frame;

[0007] A raw material roll, wherein an unwinding mechanism for fixing the raw material roll is provided between the raw material roll and the supporting platform;

[0008] The inkjet printer body is provided with an adjustment mechanism for fixing the inkjet printer body between the inkjet printer body and the supporting platform;

[0009] A reduction soaking tank, wherein the reduction soaking tank is fixedly connected to the upper surface of the support platform;

[0010] A conveying frame, the conveying frame is fixedly connected to the upper surface of the supporting platform, and the conveying frame is rotatably connected to a plurality of first transmission rollers;

[0011] A reel is provided between the reel and the support platform for fixing the reel.

[0012] Furthermore, the conveying frame is fixedly connected to a drying frame placed below the first transmission roller, and a fan for blowing air upwards is fixedly connected inside the drying frame.

[0013] Furthermore, a fixing groove is provided on the top of the conveying frame, and a flexible scraper is inserted into the fixing groove to abut against the upper surface of the flexible electromagnetic metamaterial.

[0014] Furthermore, the top of the support frame is connected with a first support rod, a second support rod and a third support rod in sequence along the conveying direction of the flexible electromagnetic metamaterial, the first support rod is connected with a first camera placed above the discharge port of the inkjet printer body, the second support rod is connected with a second camera placed above the feed port of the conveying frame, the third support rod is connected with a third camera placed above the discharge port of the conveying frame, and the first camera, the second camera and the third camera are electrically connected with a display terminal.

[0015] Furthermore, a color code sensor is fixedly connected to the bottom inner wall of the reduction immersion tank, the color code sensor is electrically connected to the display terminal, a flexible receiving plate is fixedly connected to the upper surface of the conveying rack, the flexible receiving plate is fixedly connected to a temperature sensor placed above the drying rack, and the temperature sensor is electrically connected to the display terminal.

[0016] Furthermore, the unwinding mechanism includes a cross beam slidably connected to the support frame, a pair of vertical side walls of the support frame are respectively fixedly connected to the first rack, the side walls of the cross beam are fixedly connected to the dual-axis motor, the output shafts of the dual-axis motor are respectively fixedly connected to the rotating rods rotatably connected to the cross beam, the ends of the rotating rods are fixedly connected to the first gear meshing with the first rack, the side of the cross beam away from the dual-axis motor is slidably connected to a pair of sliding seats, the side of the cross beam close to the sliding seat is fixedly connected to the second rack, the sliding seat is fixedly connected to the first motor, the output shaft of the first motor is fixedly connected to the second gear meshing with the second rack, the side of the sliding seat close to the raw material roll is connected to the vertical beam, the vertical beam is slidably connected to the sliding seat, the side walls of the vertical beam are fixedly connected to the third rack, the sliding seat is fixedly connected to the second motor, the output shaft of the second motor is fixedly connected to the third gear meshing with the third rack, and the vertical beam is connected to a connecting component for fixing the end of the raw material roll.

[0017] Furthermore, the connecting assembly includes a connecting seat connected to the side wall of the vertical beam by bolts, a flexible clamp is fixedly connected to the side of the connecting seat away from the vertical beam, the end of the raw material roll is plugged into the flexible clamp, and the end of the raw material roll is fixed to the flexible clamp by bolts.

[0018] Furthermore, the adjustment mechanism includes a first support seat fixedly connected to the upper surface of the support platform, the first support seat is fixedly connected to a third motor, the output shaft of the third motor is fixedly connected to a first lead screw, the first lead screw is threadedly connected to a first connecting block slidably connected to the first support seat, the upper surface of the first connecting block is fixedly connected to a second support seat, the second support seat is fixedly connected to a fourth motor, the output shaft of the fourth motor is fixedly connected to a second lead screw, the second lead screw is threadedly connected to a second connecting block slidably connected to the second support seat, and the upper surface of the second connecting block is fixedly connected to the inkjet printer body.

[0019] Furthermore, the unwinding mechanism includes a first fixed seat and a second fixed seat fixedly connected to the upper surface of the support platform, the second fixed seat is rotatably connected to a rotating block, the rotating block is provided with a rotating groove for inserting the end of the receiving roll, the side wall of the first fixed seat is fixedly connected to a sixth motor, a pair of clamping blocks are provided between the output shaft of the sixth motor and the end of the receiving roll, and the pair of clamping blocks are fixed by bolts.

[0020] The present invention also provides an operation method of inkjet printing flexible electromagnetic metamaterials, comprising:

[0021] S1. Install the raw material roll: connect and fix the end of the raw material roll with the flexible clamp through bolts, and then connect and fix the connecting seat with the vertical beam through bolts, and adjust the position of the raw material roll in the length direction, width direction and height direction of the support frame through the dual-axis motor, the first motor and the second motor respectively;

[0022] S2, installing the receiving roll: plug one end of the receiving roll into the rotating groove, connect the other end of the receiving roll to the output shaft of the sixth motor through a clamping block, clamp the clamping block with bolts, and make the PI film on the raw material roll pass through the inkjet printer body, the reduction immersion tank, and the conveying rack in sequence before being wound on the receiving roll;

[0023] S3, adjusting the position of the inkjet printer body: adjusting the position of the inkjet printer body in the length direction and the width direction on the support frame by means of the third motor and the fourth motor;

[0024] S4, inkjet printing: the inkjet printer body sprays ink on the PI film passing through the inside of the inkjet printer body;

[0025] S5, reduction soaking: the PI film leaving the inkjet printer body enters the reduction soaking tank for soaking and reacting;

[0026] S6, drying and conveying: the flexible electromagnetic metamaterial leaving the reduction immersion tank is conveyed to a conveying rack, a hair dryer blows air upward, and the drying rack dries the flexible electromagnetic metamaterial above;

[0027] S7, process monitoring: the first camera, the second camera and the third camera transmit images to the display terminal respectively, the color mark sensor transmits the color concentration value to the display terminal, and the temperature sensor transmits the temperature value to the display terminal;

[0028] S8. Reeling the material: The sixth motor drives the reel to rotate, and the rotating reel reels the processed flexible electromagnetic metamaterial, thereby completing the preparation of the inkjet-printed flexible electromagnetic metamaterial.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] (1) In the process of preparing flexible electromagnetic metamaterials by inkjet printing, a roll-to-roll method of unwinding the raw material roll and collecting the material roll is adopted. The PI film can continuously pass through the inkjet printer body, the reduction immersion tank and the conveyor rack to complete the preparation of the flexible electromagnetic metamaterial, which greatly improves the preparation speed of the flexible electromagnetic metamaterial. Compared with the traditional batch processing method of a single PI film, the roll-to-roll preparation process significantly shortens the production cycle, improves production efficiency, and meets the needs of large-scale industrial production.

[0031] (2) A pair of fixed grooves are provided on the upper surface of the conveying frame, and a flexible scraper is inserted into the fixed groove. The flexible scraper is in contact with the upper surface of the flexible electromagnetic metamaterial. The flexible scraper is used to scrape off small particles of the circuit on the surface of the flexible electromagnetic metamaterial without damaging the surface of the flexible electromagnetic metamaterial.

[0032] (3) The first camera photographs the surface condition of the flexible electromagnetic metamaterial after inkjet printing and transmits the image to the display terminal, through which the staff can observe the surface condition of the flexible electromagnetic metamaterial after inkjet printing; the second camera is placed on the feeding side of the conveyor rack, the second camera photographs the surface condition of the flexible electromagnetic metamaterial after the reduction reaction and transmits the image to the display terminal, through which the staff can observe the surface condition of the flexible electromagnetic metamaterial after the reduction reaction; the third camera is placed on the discharging side of the conveyor rack, the third camera photographs the surface condition of the flexible electromagnetic metamaterial after the drying process and transmits the image to the display terminal, through which the staff can observe the surface condition of the flexible electromagnetic metamaterial after the drying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1This is a schematic diagram of the structure of an embodiment of the present application;

[0035] Figure 2 This is a schematic diagram of an inkjet printer body in this embodiment;

[0036] Figure 3 This is a schematic diagram of a flexible scraper in this embodiment;

[0037] Figure 4 is a schematic diagram of a first camera in this embodiment;

[0038] Figure 5 is a schematic diagram of a second camera in this embodiment;

[0039] Figure 6 is a schematic diagram of a third camera in this embodiment;

[0040] Figure 7 This is a schematic diagram of a color mark sensor in this embodiment;

[0041] Figure 8 This is a schematic diagram of a beam in this embodiment;

[0042] Fig. 9 is a schematic diagram of the first gear in this embodiment;

[0043] Fig.10 is a schematic diagram of the second gear in this embodiment;

[0044] Fig.11 is a schematic diagram showing the third gear in this embodiment;

[0045] Fig.12 is a schematic diagram of a flexible clamping claw in this embodiment;

[0046] Fig.13 This is a schematic diagram of the first lead screw in this embodiment;

[0047] Fig.14 FIG. 4 is a schematic diagram of a clamping block in this embodiment.

[0048] Description of the accompanying drawings: 1, frame; 2, support platform; 21, support frame; 211, first support rod; 2111, roller; 2112, second slide rail; 2113, slider; 2114, first receiving rod; 2115, first camera; 212, second support rod; 2121, second receiving rod; 2122, second camera; 213, third support rod; 2131, third receiving rod; 2132, third camera; 214, first slide rail; 22, original 23, inkjet printer body; 24, adjustment mechanism; 241, first support seat; 242, third motor; 243, first lead screw; 244, first connecting block; 245, second support seat; 246, fourth motor; 247, second lead screw; 248, second connecting block; 25, reduction soaking tank; 251, color mark sensor; 252, second transmission roller; 26, conveyor frame; 261, first transmission roller; 262, drive assembly; 2621, fifth motor machine; 2622, fourth gear; 2623, transmission gear; 2624, connecting rod; 263, drying rack; 2631, fan; 264, fixed groove; 265, flexible scraper; 27, material collection roll; 28, flexible receiving plate; 281, temperature sensor; 3, unwinding mechanism; 31, crossbeam; 311, walking wheel; 32, first rack; 33, double-axis motor; 34, rotating rod; 35, first gear; 36, sliding seat; 361, first guide rail; 362 , the second rack; 363, the first motor; 3631, the second gear; 37, the vertical beam; 371, the second guide rail; 372, the third rack; 38, the second motor; 381, the third gear; 39, the connecting assembly; 391, the connecting seat; 392, the flexible clamp; 4, the winding mechanism; 41, the first fixed seat; 42, the second fixed seat; 43, the rotating block; 431, the rotating groove; 44, the sixth motor; 45, the clamping block; 5, the first observation window; 6, the second observation window. DETAILED DESCRIPTION

[0049] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0050] The following is combined with Figure 1 To Attachment Fig.14 The present invention is described in detail with reference to specific embodiments.

[0051] like Figures 1 to 14As shown, a preparation device for flexible electromagnetic metamaterials by flexible inkjet printing provided by the present invention comprises a frame 1, a support platform 2 is fixedly connected to the inner wall of the frame 1, and a support frame 21 is fixedly connected to the upper surface of the support platform 2. A raw material roll 22 is arranged on the support frame 21, and a PI film raw material is wound on the raw material roll 22. An unwinding mechanism 3 is arranged between the raw material roll 22 and the support frame 21, and the unwinding mechanism 3 fixes both ends of the raw material roll 22 and supports both ends of the raw material roll 22. During the unwinding process of the raw material roll 22, the raw material roll 22 rotates around its own axis relative to the end of the raw material roll 22. The unwinding mechanism 3 can drive the raw material roll 22 to move along the length, width and height directions of the support frame 21 respectively, and adjust the position of the raw material roll 22.

[0052] An inkjet printer body 23 is provided on the upper surface of the support platform 2, and an adjustment mechanism 24 is provided between the inkjet printer body 23 and the support platform 2. The adjustment mechanism 24 supports the inkjet printer body 23. The adjustment mechanism 24 can drive the inkjet printer to move along the length and width directions of the support frame 21 respectively, and adjust the position of the inkjet printer body 23.

[0053] The silver ink configured in advance is added into the inkjet printer body 23 . The PI film raw material after unwinding the raw material roll 22 passes through the inkjet printer body 23 . The inkjet printer body 23 sprays ink on the upper surface of the PI film raw material. After the ink is sprayed, the PI film raw material leaves the inkjet printer body 23 .

[0054] A reduction immersion tank 25 is fixedly connected to the upper surface of the support platform 2. The reduction immersion tank 25 contains a pre-configured copper plating solution. The PI film leaving the inkjet printer body 23 enters the reduction immersion tank 25 to react, and the PI film passing through the reduction immersion tank 25 leaves the reduction immersion tank 25.

[0055] The upper surface of the support platform 2 is fixedly connected with a conveyor frame 26, which is rotatably connected with a plurality of first transmission rollers 261, and the conveyor frame 26 is connected with a driving assembly 262 for driving the first transmission rollers 261 to rotate. The conveyor frame 26 is fixedly connected with a drying frame 263, which is placed below the first transmission rollers 261, and the drying frame 263 uses electric heating to heat and dry the flexible electromagnetic metamaterial above the first transmission rollers 261.

[0056] The flexible electromagnetic metamaterial leaving the reduction immersion tank 25 is placed on the conveying rack 26, the first transmission roller 261 conveys the flexible electromagnetic metamaterial, and the drying rack 263 heats and dries the flexible electromagnetic metamaterial after immersion reduction to dry the residual liquid on the surface of the flexible electromagnetic metamaterial.

[0057] A material collection roll 27 is provided above the support platform 2, and a winding mechanism 4 is provided between the material collection roll 27 and the support. The winding mechanism 4 fixes the end of the material collection roll 27, and the winding mechanism 4 drives the material collection roll 27 and the end of the material collection roll 27 to rotate together. The flexible electromagnetic metamaterial leaving the conveying rack 26 is wound around the material collection roll 27, and the material collection roll 27 collects the prepared flexible electromagnetic metamaterial.

[0058] In the process of preparing flexible electromagnetic metamaterials by inkjet printing, the raw material roll 22 is unloaded and the material reel 27 is collected. The PI film can continuously pass through the inkjet printer body 23, the reduction immersion tank 25 and the conveyor rack 26 to complete the preparation of the flexible electromagnetic metamaterial, which greatly improves the preparation speed of the flexible electromagnetic metamaterial. Compared with the traditional batch processing method of a single PI film, the roll-to-roll preparation process significantly shortens the production cycle, improves production efficiency, and meets the needs of large-scale industrial production.

[0059] The natural continuity of the roll-to-roll process ensures the stability of the flexible electromagnetic metamaterial during transmission. Combined with the inkjet printing of the inkjet printing body, this scheme can achieve uniform preparation of large-area flexible electromagnetic metamaterials.

[0060] A pair of fixed grooves 264 are provided on the upper surface of the conveying frame 26. A flexible scraper 265 is inserted into the fixed groove 264. The flexible scraper 265 abuts against the upper surface of the flexible electromagnetic metamaterial. The flexible scraper 265 is used to scrape off small particles on the circuit on the surface of the flexible electromagnetic metamaterial without damaging the surface of the flexible electromagnetic metamaterial. The flexible scraper 265 is inserted into the fixed groove 264 to facilitate the installation of the flexible scraper 265.

[0061] The top of the support frame 21 is connected with a first support rod 211, a second support rod 212 and a third support rod 213, and the first support rod 211, the second support rod 212 and the third support rod 213 are all slidably connected to the support frame 21. A pair of vertical side walls of the support frame 21 are fixedly connected with a first slide rail 214, and the side walls of the first support rod 211, the second support rod 212 and the third support rod 213 are rotatably connected with rollers 2111, which are rollingly connected with the first slide rail 214, and the first support rod 211, the second support rod 212 and the third support rod 213 can adjust their positions along the length direction of the first slide rail 214 respectively.

[0062] The vertical side walls of the first support rod 211, the second support rod 212 and the third support rod 213 are respectively fixedly connected with the second slide rail 2112, and each second slide rail 2112 is slidably connected with two sliders 2113, the side wall of the slider 2113 close to the first support rod 211 is fixedly connected with the first receiving rod 2114, and the first receiving rod 2114 is fixedly connected with the first camera 2115; the side wall of the slider 2113 close to the second support rod 212 is fixedly connected with the second receiving rod 2121, and the second receiving rod 2121 is fixedly connected with the second camera 2122, the slider 2113 close to the third support rod 213 is fixedly connected with the third receiving rod 2131, and the third receiving rod 2131 is fixedly connected with the third camera 2132, and the first camera 2115, the second camera 2122 and the third camera 2132 can adjust their positions along the length direction of the corresponding second slide rail 2112, respectively.

[0063] The first camera 2115, the second camera 2122 and the third camera 2132 are electrically connected to a display terminal, which is a computer or a display in this embodiment. The first camera 2115 is placed above the discharge port of the inkjet printer body 23. The first camera 2115 captures the surface of the flexible electromagnetic metamaterial after inkjet printing and transmits the image to the display terminal. The staff can observe the surface of the flexible electromagnetic metamaterial after inkjet printing through the display terminal.

[0064] The second camera 2122 is placed on the feeding side of the conveyor rack 26. The second camera 2122 photographs the surface condition of the flexible electromagnetic metamaterial that has completed the reduction reaction and transmits the image to the display terminal. The staff can observe the surface condition of the flexible electromagnetic metamaterial that has completed the reduction reaction through the display terminal.

[0065] The third camera 2132 is placed on the discharging side of the conveyor rack 26. The third camera 2132 captures the surface condition of the flexible electromagnetic metamaterial that has completed the drying process and transmits the image to the display terminal. The staff can observe the surface condition of the flexible electromagnetic metamaterial that has completed the drying process through the display terminal.

[0066] A color mark sensor 251 is fixedly connected to the inner wall at the bottom of the reduction immersion tank 25, and the color mark sensor 251 is electrically connected to the display terminal. Since the copper plating liquid is light blue, the color mark sensor 251 detects the color concentration of the copper plating liquid. As the reaction in the reduction immersion tank 25 continues, the color of the copper plating liquid gradually fades, and the color mark sensor 251 transmits the detected color concentration value to the display terminal. The staff observes the value. When the value is lower than the required value, the staff can replenish or replace the copper plating liquid in time.

[0067] A flexible receiving plate 28 is fixedly connected to the upper surface of the conveying rack 26, and a temperature sensor 281 is fixedly connected to the upper surface of the flexible receiving plate 28. The temperature sensor 281 is electrically connected to the display terminal. The temperature sensor 281 is placed above the drying rack 263. The temperature sensor 281 detects the temperature above the drying rack 263. The temperature sensor 281 transmits the temperature value to the display terminal. The staff observes the temperature value and adjusts the heating temperature of the drying rack 263 to reach the appropriate drying temperature when the temperature is too high or too low.

[0068] A plurality of fans 2631 are fixedly connected to the inner wall of the bottom surface of the drying rack 263. The fans 2631 blow air upwards. During the blowing process of the fans 2631, the heat of the drying rack 263 is quickly brought into contact with the surface of the flexible electromagnetic metamaterial along with the wind, thereby improving the drying efficiency.

[0069] The unwinding mechanism 3 includes a crossbeam 31 placed in the support frame 21, a pair of vertical side walls of the support frame 21 are respectively fixedly connected to the first rack 32, and a side of the support frame 21 close to the first rack 32 is rotatably connected to a running wheel 311, and the running wheel 311 is rollingly connected to the upper surface of the first rack 32.

[0070] A dual-axis motor 33 is fixedly connected to the side of the beam 31 away from the raw material roll 22, and the output shafts of the dual-axis motor 33 are respectively fixedly connected to rotating rods 34. The rotating rods 34 are rotatably connected to the beam 31, and one end of the rotating rod 34 away from the dual-axis motor 33 is fixedly connected to a first gear 35. The first gear 35 and the first rack 32 are arranged in a one-to-one correspondence and the first gear 35 and the first rack 32 are meshingly connected.

[0071] A pair of sliding seats 36 are fixedly connected to one side of the cross beam 31 close to the raw material roll 22, a first guide rail 361 is fixedly connected to one side of the cross beam 31 close to the sliding seat 36, and the sliding seat 36 is slidably connected to the first guide rail 361. A second rack 362 is fixedly connected to one side of the cross beam 31 close to the sliding seat 36, and a first motor 363 is fixedly connected to one side of each sliding seat 36 away from the cross beam 31, and a second gear 3631 is fixedly connected to the output shaft of the first motor 363, and the second gear 3631 is meshedly connected to the second rack 362.

[0072] A vertical beam 37 is connected to the side of the sliding seat 36 close to the raw material roll 22, and a second guide rail 371 is fixedly connected to the vertical side wall of the vertical beam 37. The vertical beam 37 is slidably connected to the sliding seat 36 through the second guide rail 371. A third rack 372 is fixedly connected to the vertical side wall of one side of the vertical beam 37, and a second motor 38 is fixedly connected to the side wall of the sliding seat 36. The output shaft of the second motor 38 is fixedly connected to the third gear 381, and the third gear 381 is meshed with the third rack 372.

[0073] A connecting assembly 39 is provided on one side of the vertical beam 37 near the end of the raw material roll 22, and the connecting assembly 39 connects and fixes the end of the raw material roll 22 to the vertical beam 37. When the raw material roll 22 is unloaded, the end of the raw material roll 22 is fixed, and the raw material roll 22 rotates relative to the end of the raw material roll 22.

[0074] The output shaft of the dual-axis motor 33 drives the rotating rod 34 to rotate, and the rotating rod 34 drives the first gear 35 to rotate, and the cross beam 31 moves along the length direction of the support frame 21, thereby adjusting the distance between the raw material roll 22 and the inkjet printer body 23. The output shaft of the first motor 363 drives the second gear 3631 to rotate, and the sliding seat 36 moves along the width direction of the support frame 21, thereby adjusting the position of the raw material roll 22 in the width direction of the support frame 21. The output shaft of the third motor 242 drives the third gear 381 to rotate, and the vertical beam 37 moves in the vertical direction, thereby adjusting the position of the raw material roll 22 in the vertical direction.

[0075] The connection assembly 39 includes a connection seat 391 connected to the side wall of the vertical beam 37, and the connection seat 391 is fixed to the vertical beam 37 by bolts. A flexible clamp 392 is fixedly connected to the side of the connection seat 391 away from the vertical beam 37, and the end of the raw material roll 22 is plugged into the inner wall of the flexible clamp 392, and the end of the raw material roll 22 is fixed to the flexible clamp 392 by bolts.

[0076] When the raw material roll 22 needs to be replaced, the bolts on the connecting seat 391 are unscrewed, and then the connecting seat 391 and the raw material roll 22 are removed, and then the bolts on the flexible clamp 392 are removed to separate the end of the raw material roll 22 from the flexible clamp 392, and a new raw material roll 22 is replaced, and then the end of the raw material roll 22 is connected and fixed to the flexible clamp 392 by bolts, and the connecting seat 391 is connected and fixed to the vertical beam 37 by bolts.

[0077] The adjustment mechanism 24 includes a first support seat 241 fixedly connected to the upper surface of the support platform 2, the first support seat 241 is fixedly connected to a third motor 242, the output shaft of the third motor 242 is fixedly connected to a first lead screw 243, the first lead screw 243 is rotatably connected to the first support seat 241, the first lead screw 243 is threadedly connected to a first connecting block 244, and the first connecting block 244 is slidably connected to the first support seat 241.

[0078] The upper surface of the first connecting block 244 is fixedly connected to the second support seat 245, the second support seat 245 is fixedly connected to the fourth motor 246, the output shaft of the fourth motor 246 is fixedly connected to the second lead screw 247, the second lead screw 247 is rotatably connected to the second support seat 245, the second lead screw 247 is threadedly connected to the second connecting block 248, the second connecting block 248 is slidably connected to the second support seat 245, and the inkjet printer body 23 is fixedly connected to the upper surface of the second connecting block 248.

[0079] The output shaft of the third motor 242 drives the first lead screw 243 to rotate, and the first lead screw 243 drives the first connecting block 244 to move along the length direction of the support frame 21, thereby adjusting the position of the inkjet printer body 23 in the length direction of the support frame 21; the output shaft of the fourth motor 246 drives the second lead screw 247 to rotate, and the second lead screw 247 drives the second connecting block 248 to move along the width direction of the support frame 21, thereby adjusting the position of the inkjet printer body 23 in the width direction of the support frame 21.

[0080] The driving assembly 262 includes a fifth motor 2621 fixedly connected to the side wall of the conveying frame 26, and the output shaft of the fifth motor 2621 is fixedly connected to the end of one of the first transmission rollers 261. Each first rotating roller is fixed with a fourth gear 2622, and a transmission gear 2623 is provided between two adjacent fourth gears 2622, and the transmission gear 2623 is meshed and connected with the two adjacent fourth gears 2622, and the transmission gear 2623 is rotatably connected with a connecting rod 2624, and the connecting rod 2624 is fixedly connected to the inner wall of the conveying frame 26.

[0081] The output shaft of the fourth motor 246 drives one of the first transmission rollers 261 to rotate, and the first transmission roller 261 drives the adjacent first transmission roller 261 to rotate through the fourth gear 2622 and the transmission gear 2623. By arranging the transmission gear 2623 between two adjacent fourth gears 2622, the rotation direction of all the first transmission rollers 261 can be kept consistent.

[0082] The reduction immersion tank 25 is rotatably connected to a plurality of second transmission rollers 252. When the flexible electromagnetic metamaterial passes through the reduction immersion tank 25, the second transmission rollers 252 support and transport the flexible electromagnetic metamaterial. The driving method for driving the second transmission rollers 252 to rotate is the same as the driving method for driving the first transmission rollers 261 to rotate, and will not be repeated here.

[0083] The winding mechanism 4 includes a first fixed seat 41 and a second fixed seat 42 fixed to the upper surface of the support platform 2. The second fixed seat 42 is rotatably connected to a rotating block 43. A rotating groove 431 is provided on the side of the rotating block 43 close to the winding roll 27. One end of the winding roll 27 is plugged into the rotating groove 431.

[0084] The side wall of the first fixing seat 41 is fixedly connected with a sixth motor 44, and a pair of clamping blocks 45 are provided between the output shaft of the sixth motor 44 and the end of the material receiving roll 27. The output shaft of the sixth motor 44 and the end of the material receiving roll 27 are respectively placed between two clamping blocks 45, and the two clamping blocks 45 are connected and fixed by bolts. After the bolts are tightened, the clamping blocks 45 connect and fix the end of the material receiving roll 27 with the output shaft of the sixth motor 44. The output shaft of the sixth motor 44 rotates, and the material receiving roll 27 is driven to rotate through the clamping blocks 45 to receive the material.

[0085] When the take-up roll 27 needs to be replaced, the bolts connected to the clamping block 45 are unscrewed, the clamping block 45 is separated from the end of the take-up roll 27, the take-up roll 27 is moved to separate the end of the take-up roll 27 from the rotating groove 431, and then a new take-up roll 27 is replaced, and the end of the take-up roll 27 is plugged into the rotating groove 431 again, and the end of the take-up roll 27 is connected and fixed to the output shaft of the sixth motor 44 through the clamping block 45.

[0086] A first observation window 5 is fixedly connected to the frame 1 , and a second observation window 6 is also slidably connected to the frame 1 . The second observation windows 6 are arranged in two pairs, and the two second observation windows 6 in each pair of second observation windows 6 are respectively arranged on both sides of the frame 1 .

[0087] The first observation window 5 and the second observation window 6 make it convenient for the staff to observe the working conditions inside the frame 1. When the raw material roll 22 needs to be replaced, the staff can move the second observation window 6 close to the raw material roll 22 and open the second observation window 6 to facilitate the staff to replace the raw material roll 22; when the receiving roll 27 needs to be replaced, the staff can move the second observation window 6 close to the receiving roll 27 and open the second observation window 6 to facilitate the staff to replace the receiving roll 27.

[0088] The present invention also provides a method for preparing a flexible inkjet-printed electromagnetic metamaterial, comprising the following steps:

[0089] S1. Install the raw material roll 22: Connect and fix the end of the raw material roll 22 to the flexible clamp 392 by bolts, and then connect and fix the connecting seat 391 to the vertical beam 37 by bolts, and adjust the position of the raw material roll 22 in the length direction, width direction and height direction of the support frame 21 by the dual-axis motor 33, the first motor 363 and the second motor 38 respectively;

[0090] S2, installing the material receiving roll 27: plug one end of the material receiving roll 27 into the rotating groove 431, and connect the other end of the material receiving roll 27 to the output shaft of the sixth motor 44 through the clamping block 45, and clamp the clamping block 45 with bolts, so that the PI film on the raw material roll 22 passes through the inkjet printer body 23, the reduction immersion tank 25, and the conveying rack 26 in sequence, and then is wound on the material receiving roll 27;

[0091] S3, adjusting the position of the inkjet printer body 23: adjusting the position of the inkjet printer body 23 in the length direction and the width direction on the support frame 21 by the third motor 242 and the fourth motor 246;

[0092] S4, inkjet printing: the inkjet printer body 23 sprays ink on the PI film passing through the inside of the inkjet printer body 23;

[0093] S5, reduction soaking: the PI film leaving the inkjet printer body 23 enters the reduction soaking tank 25 for soaking and reacting;

[0094] S6, drying and conveying: the flexible electromagnetic metamaterial leaving the reduction immersion tank 25 is conveyed to the conveying rack 26, the hair dryer blows upward, and the drying rack 263 dries the flexible electromagnetic metamaterial above;

[0095] S7, process monitoring: the first camera 2115, the second camera 2122 and the third camera 2132 transmit images to the display terminal respectively, the color mark sensor 251 transmits the color concentration value to the display terminal, and the temperature sensor 281 transmits the temperature value to the display terminal;

[0096] S8. The receiving reel 27 receives the material: the sixth motor 44 drives the receiving reel 27 to rotate, and the rotating receiving reel 27 receives the processed flexible electromagnetic metamaterial, thereby completing the preparation of the inkjet-printed flexible electromagnetic metamaterial.

[0097] The present invention is further described above with the aid of specific embodiments. However, it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in the field after reading this specification are all within the scope of protection of the present invention.

Claims

1. A device for preparing flexible electromagnetic metamaterials by inkjet printing, characterized in that: include: A frame (1), wherein the frame (1) is internally fixedly connected to a support platform (2), and the upper surface of the support platform (2) is fixedly connected to a support frame (21); A raw material roll (22), wherein a reeling mechanism (3) for fixing the raw material roll (22) is provided between the raw material roll (22) and the supporting platform (2); An inkjet printer body (23), wherein an adjustment mechanism (24) for fixing the inkjet printer body (23) is provided between the inkjet printer body (23) and the support platform (2); A reduction soaking tank (25), wherein the reduction soaking tank (25) is fixedly connected to the upper surface of the support platform (2); A conveying frame (26), the conveying frame (26) is fixedly connected to the upper surface of the supporting platform (2), and the conveying frame (26) is rotatably connected to a plurality of first transmission rollers (261); A material receiving roll (27), wherein a reeling mechanism (4) for fixing the material receiving roll (27) is provided between the material receiving roll (27) and the supporting platform (2).

2. The device for preparing an inkjet-printed flexible electromagnetic metamaterial according to claim 1, characterized in that: The conveying frame (26) is fixedly connected to a drying frame (263) disposed below the first transmission roller (261), and a fan (2631) for blowing air upwards is fixedly connected inside the drying frame (263).

3. The device for preparing an inkjet-printed flexible electromagnetic metamaterial according to claim 1, characterized in that: The top of the conveying frame (26) is provided with a fixing groove (264), and a flexible scraper (265) abutting against the upper surface of the flexible electromagnetic metamaterial is inserted into the fixing groove (264).

4. The device for preparing an inkjet-printed flexible electromagnetic metamaterial according to claim 1, characterized in that: The top of the support frame (21) is connected in sequence with a first support rod (211), a second support rod (212) and a third support rod (213) along the conveying direction of the flexible electromagnetic metamaterial; the first support rod (211) is connected to a first camera (2115) disposed above a material outlet of the inkjet printer body (23); the second support rod (212) is connected to a second camera (2122) disposed above a material inlet of the conveying frame (26); the third support rod (213) is connected to a third camera (2132) disposed above a material outlet of the conveying frame (26); and the first camera (2115), the second camera (2122) and the third camera (2132) are electrically connected to a display terminal.

5. The device for preparing flexible electromagnetic metamaterials by inkjet printing according to claim 4, characterized in that: A color mark sensor (251) is fixedly connected to the inner wall of the bottom of the reduction soaking tank (25), and the color mark sensor (251) is electrically connected to the display terminal. A flexible receiving plate (28) is fixedly connected to the upper surface of the conveying rack (26), and the flexible receiving plate (28) is fixedly connected to a temperature sensor (281) placed above the drying rack (263), and the temperature sensor (281) is electrically connected to the display terminal.

6. The device for preparing flexible electromagnetic metamaterials by inkjet printing according to any one of claims 1 to 5, characterized in that: The unwinding mechanism (3) comprises a crossbeam (31) slidably connected to a support frame (21); a pair of vertical side walls of the support frame (21) are respectively fixedly connected to first racks (32); the side walls of the crossbeam (31) are fixedly connected to dual-axis motors (33); the output shafts of the dual-axis motors (33) are respectively fixedly connected to rotating rods (34) rotatably connected to the crossbeam (31); the ends of the rotating rods (34) are fixedly connected to first gears (35) meshingly connected to the first racks (32); a side of the crossbeam (31) away from the dual-axis motor (33) is slidably connected to a pair of sliding seats (36); a side of the crossbeam (31) close to the sliding seat (36) is fixedly connected to a second rack (362); (36) is fixedly connected to a first motor (363), the output shaft of the first motor (363) is fixedly connected to a second gear (3631) meshing with a second rack (362), the sliding seat (36) is connected to a vertical beam (37) on the side close to the raw material roll (22), the vertical beam (37) is slidably connected to the sliding seat (36), the side wall of the vertical beam (37) is fixedly connected to a third rack (372), the sliding seat (36) is fixedly connected to a second motor (38), the output shaft of the second motor (38) is fixedly connected to a third gear (381) meshing with the third rack (372), and the vertical beam (37) is connected to a connecting component (39) for fixing the end of the raw material roll (22).

7. The device for preparing flexible electromagnetic metamaterials by inkjet printing according to claim 6, characterized in that: The connecting assembly (39) includes a connecting seat (391) connected to the side wall of the vertical beam (37) by bolts, and a flexible clamp (392) is fixedly connected to the side of the connecting seat (391) away from the vertical beam (37), and the end of the raw material roll (22) is plugged into the flexible clamp (392), and the end of the raw material roll (22) and the flexible clamp (392) are fixed by bolts.

8. The device for preparing flexible electromagnetic metamaterials by inkjet printing according to claim 6, characterized in that: The adjustment mechanism (24) comprises a first support seat (241) fixedly connected to the upper surface of the support platform (2); the first support seat (241) is fixedly connected to a third motor (242); the output shaft of the third motor (242) is fixedly connected to a first lead screw (243); the first lead screw (243) is threadedly connected to a first connecting block (244) slidably connected to the first support seat (241); the upper surface of the first connecting block (244) is fixedly connected to a second support seat (245); the second support seat (245) is fixedly connected to a fourth motor (246); the output shaft of the fourth motor (246) is fixedly connected to a second lead screw (247); the second lead screw (247) is threadedly connected to a second connecting block (248) slidably connected to the second support seat (245); the upper surface of the second connecting block (248) is fixedly connected to the inkjet printer body (23).

9. The device for preparing flexible electromagnetic metamaterials by inkjet printing according to claim 6, characterized in that: The unwinding mechanism (3) comprises a first fixed seat (41) and a second fixed seat (42) fixedly connected to the upper surface of the support platform (2); the second fixed seat (42) is rotatably connected to a rotating block (43); the rotating block (43) is provided with a rotating groove (431) for inserting the end of the receiving roll (27); the side wall of the first fixed seat (41) is fixedly connected to a sixth motor (44); a pair of clamping blocks (45) are provided between the output shaft of the sixth motor (44) and the end of the receiving roll (27); the pair of clamping blocks (45) are fixed by bolt connection.

10. An operation method for inkjet printing flexible electromagnetic metamaterials, applied to the preparation device according to any one of claims 1 to 9, characterized in that: include: S1, installing the raw material roll (22): connecting and fixing the end of the raw material roll (22) to the flexible clamp (392) by bolts, and then connecting and fixing the connecting seat (391) to the vertical beam (37) by bolts, and adjusting the position of the raw material roll (22) in the length direction, width direction and height direction of the support frame (21) by the double-axis motor (33), the first motor (363) and the second motor (38); S2, installing the material receiving roll (27): plugging one end of the material receiving roll (27) into the rotating groove (431), and connecting and fixing the other end of the material receiving roll (27) to the output shaft of the sixth motor (44) through the clamping block (45), and clamping and fixing the clamping block (45) with bolts, so that the PI film on the raw material roll (22) passes through the inkjet printer body (23), the reduction immersion tank (25), and the conveying frame (26) in sequence, and then is wound on the material receiving roll (27); S3, adjusting the position of the inkjet printer body (23): adjusting the position of the inkjet printer body (23) on the support frame (21) in the length direction and the width direction by means of the third motor (242) and the fourth motor (246); S4, inkjet printing: the inkjet printer body (23) sprays ink on the PI film passing through the inside of the inkjet printer body (23); S5, reduction soaking: the PI film leaving the inkjet printer body (23) enters the reduction soaking tank (25) for soaking and reacting; S6, drying and conveying: the flexible electromagnetic metamaterial leaving the reduction immersion tank (25) is conveyed to the conveying rack (26), the hair dryer blows air upward, and the drying rack (263) dries the flexible electromagnetic metamaterial above; S7, process monitoring: the first camera (2115), the second camera (2122) and the third camera (2132) transmit images to the display terminal respectively, the color mark sensor (251) transmits the color concentration value to the display terminal, and the temperature sensor (281) transmits the temperature value to the display terminal; S8, the material collection reel (27) collects the material: the sixth motor (44) drives the material collection reel (27) to rotate, and the rotating material collection reel (27) collects the processed flexible electromagnetic metamaterial, thereby completing the preparation of the inkjet-printed flexible electromagnetic metamaterial.

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