A flexible sensor printing apparatus

Abstract

The application discloses a flexible sensor printing device, and belongs to the technical field of printing devices.The device comprises unwinding devices, printing devices, and winding devices, at least one printing unit is arranged in the printing device, printing structures and drying structures are arranged in the printing unit to respectively perform printing and drying, a plurality of drying modes are integrated in the drying structure to adapt to a plurality of printing modes, and the applicability of the drying structure is improved; meanwhile, the outer sides of all the devices are provided with overall sealing covers of purification covers, the overall purification of the machine is realized through the filtering mechanism, the environmental quality of all the production devices is ensured, and the product quality is improved. The flexible sensor printing device has compact and reasonable structure arrangement, various selection modes of functional modules, and accurate control, the printing precision and the printing speed of the printing device are effectively improved, the production efficiency is improved, and the flexible sensor printing device has good application prospect and popularization value.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of printing equipment, and particularly relates to a flexible sensor printing equipment. BACKGROUND

[0002] The flexible sensor is a sensor made of flexible material. Due to its good flexibility and ductility, it can be naturally bent and folded, and can be flexibly arranged according to the actual application scene, and is widely used in artificial intelligence devices, display screens and other fields.

[0003] With the continuous improvement of the precision of artificial intelligence devices, display screens and other devices, the production precision of the flexible sensor is also improved. The improvement of the production precision of the flexible sensor is affected by many factors, such as the production environment. If there are many impurities in the air of the production environment, it will affect the yield of the finished product. The existing traditional flexible sensor printing equipment has low precision of printed circuit, so it has low requirements for the air environment, only makes simple purification in part, and cannot meet the high-precision printing demand. For example, the printing method, the existing flexible sensor printing mainly adopts the silk screen printing method, which has limited precision and cannot print precise lines. It has poor processing ability for delicate lines and textures.

[0004] In addition, with the continuous increase of the application field and market demand of the flexible sensor, the types of products are various and complex, and the product update iteration speed is fast. The single silk screen printing method and the printing efficiency cannot meet the printing demand of the complex integrated circuit. SUMMARY

[0005] In view of one or more of the above defects or improvement needs of the prior art, the present application provides a flexible sensor printing equipment which can improve the printing precision of the equipment and produce complex printed products.

[0006] To achieve the above-mentioned purpose, the present application provides a flexible sensor printing equipment, which comprises a unwinding device, a printing device, a winding device;

[0007] The printing device comprises at least one printing unit, the printing unit comprises a printing structure and a drying structure, the printing structure prints the substrate by ink, and the drying structure is used for drying the ink after printing, and the drying structure is integrated with multiple drying modes to adapt to multiple printing modes;

[0008] It also comprises a purification device, the purification device comprises a purification cover and a filtering mechanism; the purification cover is integrally sealed outside the unwinding device, the printing device and the winding device, and at least one air inlet and at least one air outlet are arranged on the purification cover for ventilation, and the filtering mechanism is arranged at the air inlet and the air outlet to purify the ventilation air.

[0009] As a further improvement of the present application, the printing device comprises a plurality of printing units, the printing modes of the plurality of printing units are the same, or the printing modes of at least two of the printing units are different.

[0010] As a further improvement of the present application, a first deviation correction structure, a first floating roller structure, and a visual monitoring system are further arranged in each of the printing units.

[0011] The first deviation correction structure is arranged at a position close to the upstream of the printing unit, and is used for correcting the conveying position of the substrate entering the printing unit.

[0012] The first floating roller structure is arranged at a position close to the downstream of the printing unit, and is used for adjusting the tension of the substrate.

[0013] The visual monitoring system is connected with the color matching system, and is used for monitoring the printing effect and transmitting the monitoring result to the color matching system, the color matching system calculates the deviation and feeds back to correspondingly adjust the operating parameters.

[0014] As a further improvement of the present application, the visual monitoring system comprises a first visual monitoring unit, the first visual monitoring unit is arranged between the printing structure and the drying structure, and a reference point is arranged on the printing structure, the first visual monitoring unit is used for detecting the position between the printing pattern and the reference point, and transmitting to the color matching system, the color matching system calculates the position deviation between the printing pattern and the reference point, and compensates the deviation by adjusting the position of the printing roller in the feeding direction and the position of the printing roller in the axial direction.

[0015] And / or

[0016] The visual monitoring system further comprises a second visual monitoring unit, the second visual monitoring unit is arranged between the drying structure and the floating roller structure, and is used for detecting the actual color of the printing pattern after drying, and transmitting to the color matching system, the color matching system compares the actual color with the standard color, and adjusts the printing pressure and the drying temperature according to the color deviation.

[0017] As a further improvement of the present application, the printing mode of at least one of the printing structures is flexographic printing, and the flexographic printing structure comprises a rack, a screen roller, a plate roller, a printing roller, and an ink supply module.

[0018] The screen roller, the plate roller, and the printing roller are arranged in parallel and are rotatably arranged on the rack, the screen roller and the printing roller are located on one side of the plate roller, the screen roller is in contact with the plate roller, the printing roller and the plate roller are used for clamping the printing substrate, and a doctor blade is arranged on one side of the screen roller.

[0019] The ink supply module comprises a first nozzle, an ink tank, an ink barrel and an ink pump, the first nozzle is slidably arranged on the rack, and the sliding direction of the first nozzle extends along the axial direction of the anilox roller to uniformly spray ink on the surface of the anilox roller, the ink barrel is filled with ink, the ink barrel, the ink pump and the first nozzle are sequentially communicated through pipelines, the ink tank is located on one side of the anilox roller to collect the ink scraped off by the doctor blade on the surface of the anilox roller, the ink barrel is located below the ink tank, a filter is inserted into the opening of the ink barrel, and the ink tank and the opening of the ink barrel are communicated through pipelines to filter the recovered ink.

[0020] As a further improvement of the present application, the plurality of drying modes in the drying structure at least include a combination of any plurality of hot air drying, infrared drying, UV drying and contact drying.

[0021] As a further improvement of the present application, the drying structure comprises a fixed cover and an oven, and the fixed cover and the oven combine to form a sealed feeding channel, and the feeding channel is provided with an inlet and an outlet at two ends thereof;

[0022] A row of rollers is arranged on the side of the feeding channel close to the fixed cover to support the substrate fed into the drying structure;

[0023] The oven is provided with an inner box, one side of the inner box is communicated with an air inlet pipe to send hot air into the inner box through the air inlet pipe, a row of air knives is arranged on the side of the inner box close to the feeding channel, the hot air in the inner box is blown out through the air knives, the position of the air knives is opposite to the rollers, and the feeding channel is communicated with an air outlet pipe to discharge the hot air through the air outlet pipe;

[0024] A first infrared lamp tube is arranged between every two air knives, a water-cooled roller is arranged on the side of the middle section of the feeding channel close to the fixed cover, and a UV curing box is arranged on the side of the feeding channel away from the water-cooled roller.

[0025] As a further improvement of the present application, the feeding channel is symmetrically arranged in an inverted V shape, the inlet and the outlet of the feeding channel are respectively arranged at the two ends of the bottom of the inverted V shape, and the UV curing box is arranged at the top of the inverted V shape.

[0026] And / or

[0027] A second infrared lamp tube is also arranged between every two rollers and opposite to the first infrared lamp tube.

[0028] And / or

[0029] A temperature sensor is also arranged in the oven.

[0030] As a further improvement of the present application, at least one air inlet and at least one air outlet are respectively arranged corresponding to each device, and at least one air inlet and at least one air outlet are respectively arranged corresponding to each printing unit in the printing device.

[0031] The filtering mechanism comprises a first filtering module, which is installed at each air inlet and air outlet, and the first filtering module comprises three layers of filtering screens, i.e., a primary efficiency filtering screen, an activated carbon filtering screen and a high efficiency filtering screen arranged in sequence from inside to outside of the equipment.

[0032] The filtering mechanism comprises a first filtering module, a second filtering module, a fan, an air inlet channel and branch pipes, one end of the air inlet channel is sequentially provided with the second filtering module and the fan, and the other end is communicated with each air inlet through a plurality of branch pipes; and the first filtering module is installed at each air outlet.

[0033] As a further improvement of the present application, the unwinding device comprises a first winding core support structure, a paper receiving table structure, a corona structure, a second deviation rectifying structure, a dust removing structure, a second floating roller structure, a first traction structure, a first tension detection structure, a first static electricity removing structure and a preheating roller structure; wherein the first winding core support structure is arranged at the beginning end of the printing equipment, the paper receiving table structure is arranged downstream of the first winding core support structure, the first traction structure, the first tension detection structure, the first static electricity removing structure and the preheating roller structure are sequentially arranged on the side of the unwinding mechanism close to the printing device, and the corona structure, the second deviation rectifying structure, the dust removing structure and the second floating roller structure are arranged between the paper receiving table structure and the first traction structure.

[0034] And / or

[0035] The winding device comprises a third deviation rectifying structure, a quality observation structure, an image display structure, a second tension detection structure, a second traction structure, a second static electricity removing structure and a second winding core support structure arranged in sequence, wherein the third deviation rectifying structure is arranged on the side of the winding device close to the printing device.

[0036] The above technical features can be combined with each other as long as they do not conflict with each other.

[0037] Overall, compared with the prior art, the above technical solutions conceived by the present application have the following beneficial effects:

[0038] (1) The flexible sensor printing device of the present application, by setting at least one printing unit in the printing device, and setting printing structure and drying structure in the printing unit to perform printing and drying respectively, while integrating multiple drying modes in the drying structure to adapt to multiple printing modes, improve the applicability of the drying structure; at the same time, by sealing the purification cover as a whole on the outside of each device, the whole machine purification is realized through the filtering mechanism, the environmental quality of all production devices is ensured, and the product quality is improved.

[0039] (2) The flexible sensor printing device of the present application, by setting at least two printing structure modes in the multiple printing units of the printing device to adapt to complex printing requirements and improve the compatibility of the device; by setting a first visual monitoring unit and a second printing monitoring unit in each printing unit respectively to monitor the deviation of printing position and printing color respectively, and by adjusting the real-time operation parameters of each actuator to compensate and correct the deviation, the printing precision of the printed product is improved.

[0040] (3) The flexible sensor printing device of the present application, by the way of ink spraying through the first nozzle instead of the form of direct contact with the anilox roller by setting high liquid level ink in the ink fountain, the oil coating efficiency of the ink on the anilox roller is improved, and the amount of ink used is reduced; at the same time, the scraper scrapes the ink on the surface of the anilox roller and recycles the ink to the ink bucket, and the recycled ink is filtered by the filter and recycled, avoiding the accumulation of impurities in the ink fountain caused by the recycling of ink in the ink fountain, so that impurities cannot be mixed with ink and transferred to the printed product, improving the printing quality.

[0041] (4) The flexible sensor printing device of the present application, by setting the air knife opposite to the drum to prevent deformation of the material when blowing, and by setting an infrared lamp tube on the opposite side of the material, i.e. close to the fixed cover, to indirectly dry the ink by light radiation, improve the drying efficiency. Three layers of filter screens are provided in the first filter module to ensure the air filtration effect.

[0042] (5) The flexible sensor printing device of the present application has a compact and reasonable structure arrangement, various function modules have multiple selection modes, accurate control, effectively improves the printing precision and printing speed of the printing device, improves the production efficiency, has good application prospect and popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0044] Figure 1 is the overall structure schematic diagram of the flexible sensor printing device in the embodiment of the present application;

[0045] Figure 2 is the overall structure schematic diagram of the flexible sensor printing device in the embodiment of the present application;

[0046] Figure 3 is the structure schematic diagram of the unwinding device in the embodiment of the present application;

[0047] Figure 4 is the overall structure schematic diagram of the printing device in the embodiment of the present application;

[0048] Figure 5 is the structure schematic diagram of the flexographic printing structure in the embodiment of the present application;

[0049] Figure 6 is the structure schematic diagram of the ink supply module in the flexographic printing structure in the embodiment of the present application;

[0050] Figure 7 is the structure schematic diagram of the anilox roller in the flexographic printing structure in the embodiment of the present application;

[0051] Figure 8 is the structure schematic diagram of the pressure adjusting module in the flexographic printing structure in the embodiment of the present application;

[0052] Figure 9 is the structure schematic diagram of the gravure printing structure in the embodiment of the present application;

[0053] Figure 10 is the structure schematic diagram of the screen printing structure in the embodiment of the present application;

[0054] Figure 11 is the structure schematic diagram of the slot printing structure in the embodiment of the present application;

[0055] Figure 12 is the structure schematic diagram of the digital inkjet printing structure in the embodiment of the present application;

[0056] Figure 13 is the overall structure schematic diagram of the drying structure in the embodiment of the present application;

[0057] Figure 14 is the overall structure schematic diagram of the unwinding device in the embodiment of the present application;

[0058] Figure 15 is the structure schematic diagram of the place where the purification cover does not need to be opened and closed in the embodiment of the present application;

[0059] Figure 16 is the structure schematic diagram of the place where the purification cover needs to be opened and closed in the embodiment of the present application;

[0060] Figure 17 is a schematic diagram of a purification mode structure of a purification device in an embodiment of the present application;

[0061] Figure 18 is a schematic diagram of another purification mode structure of a purification device in an embodiment of the present application;

[0062] In all the drawings, the same reference signs refer to the same technical features, in particular:

[0063] 1, unwinding device; 11, first winding core support structure; 12, paper receiving table structure; 13, corona structure; 14, second deviation correction structure; 15, dust removal structure; 16, second floating roller structure; 17, first traction structure; 18, first tension detection structure; 19, first static electricity removal structure; 110, preheating roller structure;

[0064] 2, printing unit; 21, first deviation correction structure; 22, first floating roller structure;

[0065] 23, printing structure; 231, rack; 2311, sector block; 2312, buckle; 2313, air cylinder; 2314, rotating shaft; 2315, driving motor; 232, anilox roller; 2321, first section; 2322, second section; 2323, partition; 233, plate roller; 234, first impression roller; 235, ink supply module; 2351, first nozzle; 2352, first ink duct; 2353, ink tank; 2354, filter; 2355, supply tank; 2356, recovery tank; 2357, ink pump; 2358, second nozzle; 236, first doctor blade; 237, pressure adjustment module; 2371, first swing lever; 2372, second swing lever; 238, driving module;

[0066] 24, drying structure; 241, fixed cover; 242, drying oven; 243, feeding port; 244, discharging port; 245, roller; 246, inner box body; 247, air inlet pipe; 248, air knife; 249, air outlet pipe; 2410, first infrared lamp tube; 2411, water-cooled roller; 2412, UV curing box; 2413, second infrared lamp tube; 2414, temperature sensor;

[0067] 25, first visual monitoring unit; 26, second visual monitoring unit;

[0068] 27, gravure printing structure; 271, second ink duct; 272, gravure roller; 273, second doctor blade; 274, third nozzle; 275, impression cylinder;

[0069] 28, screen printing structure; 281, second impression roller; 282, third doctor blade; 283, screen roller;

[0070] 29, slit printing structure; 291, ink inlet tube; 292, coating die; 293, pressure roller;

[0071] 210, digital inkjet printing structure; 2101, inkjet head; 2102, substrate;

[0072] 3, winding device; 31, third deviation rectifying structure; 32, quality observation structure; 33, image display structure; 34, second tension detection structure; 35, second traction structure; 36, second static electricity removing structure; 37, second winding core supporting structure;

[0073] 4, purifying device; 41, purifying cover; 411, fixed frame; 412, fixed cover; 413, sealing ring; 414, fixed frame; 415, sealing strip; 416, movable sealing plate; 417, C-shaped groove; 418, clamping strip; 42, air outlet; 43, air inlet; 44, first filtering module; 45, small fan; 46, air inlet channel; 47, second filtering module; 48, fan; 49, branch pipe;

[0074] 5, base material; DETAILED DESCRIPTION

[0075] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0076] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0077] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can include at least one of the features explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0078] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0079] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0080] Embodiment:

[0081] Please refer to Figure 1 and Figure 2 The flexible sensor printing device in the preferred embodiment of the present application comprises unwinding device 1, printing device, winding device 3 and purification device, so as to print and dry the substrate 5 unwound by the unwinding device 1 through the printing device, and then wind through the winding device 3 to form a certain specification of roll, and use the purification device to purify the whole machine to provide an excellent production environment.

[0082] Specifically, the printing substrate 5 is generally a single-layer plastic film, and the material is PET, OPP, PVC, PI, etc. The printing medium is electronic silver paste ink, so as to form a conductive layer and a functional layer on the substrate 5 by printing.

[0083] Further, the unwinding device 1 mainly controls the conveying and unwinding of the printing substrate 5 and performs pretreatment to prepare for subsequent printing.

[0084] As shown in Figure 3 The unwinding device 1 in the preferred embodiment specifically comprises a first winding core support structure 11, a paper receiving table structure 12, a corona structure 13, a second deviation correcting structure 14, a dust removal structure 15, a second floating roller structure 16, a first traction structure 17, a first tension detection structure 18, a first static electricity removal structure 19 and a preheating roller structure 110.

[0085] The first roll core support structure 11 is used to support the unwinding of the base material 5 and can rotate along its own axis to unwind the base material 5. The paper receiving table structure 12 is arranged downstream of the first roll core support structure 11, so that when the base material 5 needs to be replaced, the paper receiving table structure 12 can splice the base material 5. The corona structure 13 performs an electric shock treatment on the base material 5 to improve the adhesion of the surface of the base material 5, thereby preparing for subsequent printing. The second deviation correction structure 14 is used to correct the conveying position of the base material 5 when the base material 5 deviates. The dust removal structure 15 is used to remove dust and impurities on the surface of the base material. The second floating roller structure 16 is used to adjust the tension of the base material 5 to ensure the stability of the material stretching, thereby avoiding damage to the base material due to excessive tension, or affecting the printing quality due to insufficient tension. The first traction structure 17 provides power for the unwound base material 5 to advance, and the first tension detection structure 18 detects the tension of the base material 5 during unwinding.

[0086] The first static electricity removal structure 19 and the preheating roller structure 110 are arranged in sequence on the side of the unwinding device 1 close to the printing device, so that the first static electricity removal structure 19 removes static electricity on the surface of the base material, prevents dust from adhering to the surface of the base material 5 when it is fed into the printing device, and the preheating roller structure 110 preheats the base material 5 to prevent the material temperature from changing suddenly during subsequent printing and drying, which can cause the base material 5 to deform excessively.

[0087] As shown in the preferred embodiment in Figure 3 The positions of the corona structure 13, the second deviation correction structure 14, the dust removal structure 15, and the second floating roller structure 16 can be arbitrarily exchanged according to actual setting requirements, as long as the setting purpose can be achieved.

[0088] Further, in actual printing, the printing pattern is generally single color or multi-color, and each color in the multi-color needs to be printed by a separate printing unit 2. Therefore, at least one printing unit 2 is arranged in the printing device in the preferred embodiment, and each printing unit 2 includes a first deviation correction structure 21, a first floating roller structure 22, a printing structure 23, and a drying structure 24. The first deviation correction structure 21 is used to correct the conveying position of the base material 5 again, so that the base material 5 can enter the printing structure 23 more accurately. The first floating roller structure 22 is used to adjust the tension of the base material 5 to ensure the stability of the base material 5. The printing structure 23 is used to print electronic ink onto the surface of the base material 5. The drying structure 24 is used to dry and cure the ink printed on the base material 5.

[0089] In actual production, for products with complex printing patterns, multiple printing modes may be required for overprint printing, but due to the great difference between the structures and printing methods of different printing modes, the printing pressures are different, for example, the pressure of flexographic printing is slightly light, and the pressure of gravure printing is relatively heavy, if different printing modes are combined together and the pressure cannot be adjusted accordingly, the overprint accuracy will be seriously affected, therefore, the multiple printing units 2 in the existing printing equipment generally adopt the same printing mode.

[0090] Different printing modes will also lead to different drying modes, and different drying temperatures. Therefore, if combined printing of different printing modes is adopted, the printing speed, printing pressure, printing material tension and drying temperature need to be adjusted and made into an automatic system to ensure the overprint accuracy.

[0091] In order to meet the production requirements of products, the printing device of the present application comprises multiple printing units 2, the printing modes of the multiple printing units 2 are the same, or the printing modes of at least two printing units 2 are different. At the same time, in order to ensure the overprint accuracy, as shown in Figure 4 The visual monitoring system is connected with the overprint system, used for monitoring the printing effect of the printing device in real time, and transmitting the monitoring result to the overprint system, so as to compare the monitoring result with the set effect through the overprint system, calculate the deviation, and feed back to the upper computer, and adjust the running parameters through the upper computer control corresponding executing mechanism, so as to make corresponding correction compensation to the deviation.

[0092] Specifically, the visual monitoring system of the present application comprises a first visual monitoring unit 25 and a second visual monitoring unit 26; wherein the first visual monitoring unit 25 is arranged between the printing structure 23 and the drying structure 24, and a reference point is also arranged on the printing structure 23, so as to detect the position between the printing pattern and the reference point through the first visual monitoring unit 25.

[0093] It can be known that when the printing pattern deviates, the position between the printing pattern and the reference point changes, the first visual monitoring unit 25 feeds back to the overprint system after detection, and the overprint system feeds back to the upper computer and the executing mechanism after calculation, and then the position deviation is compensated and corrected by adjusting the position of the printing roller in the feeding direction and the position of the printing roller in the axial direction in the printing structure 23, so as to improve the overprint accuracy and ensure the printing quality.

[0094] Meanwhile, the second visual monitoring unit 26 is set between the drying structure 24 and the first floating roller structure 22 to check the actual color of the printed pattern after drying and transmit it to the color matching system. The color matching system compares the actual color after drying with the standard thickness color, calculates the difference, and feeds it back to the host computer and the execution mechanism. Then, it adjusts the ink layer thickness by adjusting the printing pressure of the printing structure 23 and the drying temperature of the drying structure 24 to ensure the consistency between the actual printed color and the standard color.

[0095] Preferably, the first visual monitoring unit 25 and the second visual monitoring unit 26 can be visual sensors, image acquisition devices, etc.

[0096] like Figure 1 In the preferred embodiment shown, four printing units 2 are provided within the equipment. Each printing unit 2 selects a corresponding printing mode according to the actual printing requirements. The printing modes of the printing units 2 can be the same or different. It can be understood that setting four printing units 2 can produce printing patterns with no more than four colors, and so on for other numbers of printing units 2. Figure 1 The middle section shows the feeding path of the substrate 5 when the number of colors registered is the same as the number of printing units 2 set in the equipment; if the actual number of colors registered in the printed pattern is less than the number of printing units 2 set in the equipment, only one or several printing units 2 can be selected to work, and the printing units 2 that are not needed can be skipped directly through the transition roller, such as... Figure 2 The feeding path of substrate 5 is shown.

[0097] Furthermore, the printing mode in the printing structure 23 of the present invention can be any one of flexographic printing, gravure printing, screen printing, slot printing, digital inkjet printing, etc.

[0098] like Figure 5 As shown, the flexographic printing structure specifically includes a frame 231, an anilox roller 232, a printing roller 233, a first impression roller 234, and an ink supply module 235. The anilox roller 232, the printing roller 233, and the first impression roller 234 are arranged in parallel and can all be rotatably arranged on the frame 231. The anilox roller 232 and the first impression roller 234 are both located on one side of the printing roller 233. The anilox roller 232 is in contact with the printing roller 233. The first impression roller 234 and the printing roller 233 are used to clamp the printing substrate 5. A first doctor blade 236 is provided on one side of the anilox roller 232.

[0099] like Figure 6As shown, the ink supply module 235 includes a first nozzle 2351, a first ink tank 2352, an ink tank 2353 and an ink pump 2357, the first nozzle 2351 is slidably arranged on the rack 231, and the sliding direction of the first nozzle 2351 extends along the axial direction of the anilox roller 232 to uniformly spray ink on the surface of the anilox roller 232, the ink tank 2353 is filled with ink, the ink tank 2353, the ink pump 2357 and the first nozzle 2351 are sequentially communicated through pipelines, the first ink tank 2352 is located on one side of the anilox roller 232 to collect the ink scraped off by the first doctor blade 236 on the surface of the anilox roller 232, the ink tank 2353 is located below the first ink tank 2352, a filter 2354 is inserted into the opening of the ink tank 2353, and the first ink tank 2352 and the opening of the ink tank 2353 are communicated through pipelines to filter the recovered ink.

[0100] When the anilox roller 232 rotates, the ink pump 2357 is started to transport the ink in the ink tank 2353 to the first nozzle 2351, and the first nozzle 2351 can slide along the axial direction of the anilox roller 232 to uniformly spray ink on the surface of the anilox roller 232, so that the ink on the surface of the anilox roller 232 is transferred to the image part of the printing plate of the plate roller 233 and makes it inked, thereby uniformly spraying the ink through the ink tank 2353 and the first nozzle 2351, improving the oiling efficiency of the ink on the anilox roller 232, and avoiding the form of directly contacting the anilox roller 232 by setting high-liquid-level ink in the first ink tank 2352, thereby reducing the use amount of ink and reducing production cost.

[0101] In addition, the ink scraped off by the first doctor blade 236 on the surface of the anilox roller 232 is recovered through the first ink tank 2352 and recovered to the ink tank 2353 by gravity, and the recovered ink is filtered through the filter 2354 and recycled, avoiding the accumulation of impurities in the first ink tank 2352 due to the recycling of the ink in the first ink tank 2352, so that the impurities cannot be mixed with the ink and transferred to the printed matter, improving the printing quality.

[0102] That is, the flexographic printing structure not only can reduce the use amount of ink and reduce production cost, but also can avoid the accumulation of impurities in the first ink tank 2352 due to the recycling of the ink in the first ink tank 2352, thereby improving the printing quality.

[0103] In this embodiment, the ink tank 2353 includes a supply tank 2355 and a recovery tank 2356, the ink is located in the supply tank 2355, and the ink pump 2357 communicates with the supply tank 2355. The recovery tank 2356 communicates with the first ink tank 2352, the filter 2354 is detachably inserted into the opening of the recovery tank 2356, and by periodically transferring the filtered and recovered ink in the recovery tank 2356 to the supply tank 2355, separate management of ink supply and recovery is facilitated.

[0104] Referring to Figure 7 , the anilox roller 232 comprises a coaxially connected first segment 2321 and a second segment 2322, and the first nozzle 2351 is used for uniformly spraying ink on the surface of the first segment 2321.

[0105] The ink supply module 235 further comprises a second nozzle 2358 fixed on the rack 231 to uniformly spray color ink on the surface of the second segment 2322.

[0106] It is easy to understand that when the ink is transparent or translucent ink, the visual monitoring system cannot stably and effectively detect the transparent ink mark, resulting in the inability to identify the accuracy of the printed pattern. However, in the present application, when transparent ink is used, the first nozzle 2351 sprays transparent ink on the first segment 2321 area of the anilox roller 232, and at this time the first nozzle 2351 can only move in the first segment 2321 area. The second nozzle 2358 is fixed and sprays ordinary color ink (color ink) to the second segment 2322 area, and the transparent ink and ordinary color ink coexist on the anilox roller 232, and after being flattened by the first doctor blade 236, they are transmitted to the plate roller 233 together, wherein the transparent ink in the first segment 2321 area is transmitted to the integrated circuit pattern position of the plate roller 233, and the color ink in the second segment 2322 area is transmitted to the printing detection mark position of the plate roller 233, and the plate roller 233 transmits the transparent ink and the color ink together to the printing substrate 5, and the subsequent visual camera can stably and effectively detect the transparent ink mark by detecting the color ink mark, thereby identifying the accuracy of the printed pattern.

[0107] Further, the outer peripheral wall of the anilox roller 232 is sleeved with a partition plate 2323 to separate the first segment 2321 and the second segment 2322, thereby avoiding the mutual influence between the inks sprayed by the first nozzle 2351 and the second nozzle 2358, thereby avoiding affecting the printed pattern.

[0108] Further, as Figure 8 shown, the plate roller 233 in the present application is slidably arranged on the rack 231, and the flexographic printing mechanism further comprises a pressure adjusting module 237 to adjust the thickness of the printed pattern through the pressure adjusting module 237. The pressure adjusting module 237 comprises at least one first swing lever 2371 and at least one second swing lever 2372, the first swing lever 2371 and the second swing lever 2372 are arranged at intervals, and are both movably arranged on the rack 231, and the first swing lever 2371 and the second swing lever 2372 are respectively used to drive the plate roller 233 to slide away from the first impression roller 234 and the anilox roller 232 to move, so as to adjust the pressure between the plate roller 233 and the first impression roller 234, and the plate roller 233 and the anilox roller 232.

[0109] In the above embodiment, the first swing lever 2371 and the second swing lever 2372 can swing the plate roller 233 conveniently, so as to adjust the pressure between the plate roller 233 and the first impression roller 234, the plate roller 233 and the anilox roller 232, and further adjust the printing effect. In addition, the plate roller 233 can be isolated from the first impression roller 234 and the anilox roller 232 in the non-processing state through the sliding adjustment, so as to avoid the damage of the plate roller 233 caused by the extrusion of the first impression roller 234 and the anilox roller 232 on the outer periphery of the plate roller 233.

[0110] In an implementation manner of the present application, one end of the first swing lever 2371 and the second swing lever 2372 is movably sleeved on the rotating shaft 2314 of the rack 231, the rack 231 is provided with a sector block 2311, a buckle 2312 and an air cylinder 2313, the output end of the air cylinder 2313 is in transmission connection with the buckle 2312, so as to drive the buckle 2312 to move towards the sector block 2311, the side edge of the buckle 2312 is inserted with a movable bearing, the plate roller 233 is inserted in the movable bearing, the middle arc segment of the first swing lever 2371 and the middle arc segment of the second swing lever 2372 are in contact with and tangent to the sector block 2311, so as to drive the sector block 2311 to move towards the buckle 2312, the diameter of the middle arc segment of the first swing lever 2371 is equal to the diameter of the first impression roller 234, the diameter of the middle arc segment of the second swing lever 2372 is equal to the diameter of the anilox roller 232, the corresponding diameter of the sector block 2311 is equal to the diameter of the plate roller 233, and the sector block 2311 and the buckle 2312 are used for clamping the movable bearing.

[0111] In the above embodiment, the other end of the first swing lever 2371 is pushed, so that the first swing lever 2371 rotates around the rotating shaft 2314, and the middle arc segment of the first swing lever 2371 drives the sector block 2311 to move left. When the air cylinder 2313 drives the buckle 2312 to move right and cooperates with the left-moving sector block 2311 to clamp the plate roller 233, the position adjustment of the plate roller 233 is completed. Since the position of the first impression roller 234 remains unchanged, the pressure between the plate roller 233 and the first impression roller 234 is adjusted by adjusting the position of the plate roller 233.

[0112] Similarly, the other end of the second swing lever 2372 is pushed, so that the second swing lever 2372 rotates around the rotating shaft 2314, and the middle arc segment of the second swing lever 2372 drives the sector block 2311 to move left. When the air cylinder 2313 drives the buckle 2312 to move right and cooperates with the left-moving sector block 2311 to clamp the plate roller 233, the position adjustment of the plate roller 233 is completed. Since the position of the anilox roller 232 remains unchanged, the pressure between the plate roller 233 and the anilox roller 232 is adjusted by adjusting the position of the plate roller 233.

[0113] It is easy to understand that, since the middle arc segment of the first swing lever 2371 and the middle arc segment of the second swing lever 2372 are both in contact with and tangent to the sector block 2311, the diameter of the middle arc segment of the first swing lever 2371 is equal to the diameter of the first impression roller 234, the diameter of the middle arc segment of the second swing lever 2372 is equal to the diameter of the anilox roller 232, and the corresponding diameter of the sector block 2311 is equal to the diameter of the plate roller 233, it can be ensured that the plate roller 233 is tangent to the first impression roller 234 or the anilox roller 232 at the initial position. Therefore, in the process of swinging the first swing lever 2371 or the second swing lever 2372, the first swing lever 2371 and the second swing lever 2372 are always tangent to the sector block 2311 and the plate roller 233, so that when the first swing lever 2371 is swung to drive the plate roller 233 to move, the second swing lever 2372 is always tangent to the sector block 2311 and the pressure between the plate roller 233 and the anilox roller 232 cannot be adjusted. When the second swing lever 2372 is swung to drive the plate roller 233 to move, the second swing lever 2372 is always tangent to the sector block 2311 and the pressure between the plate roller 233 and the first impression roller 234 cannot be adjusted.

[0114] That is, when the pressure between the plate roller 233 and the first impression roller 234 or the plate roller 233 and the anilox roller 232 is adjusted by driving the plate roller 233 to move, they do not affect each other, thereby ensuring the adjustment accuracy of each other.

[0115] In addition, the other end of the first swing lever 2371 and the second swing lever 2372 corresponds to a lead screw, a top block and a driving motor 2315, the driving motor 2315 drives the lead screw to rotate to push the top block to move, thereby driving the first swing lever 2371 or the second swing lever 2372 to rotate. And the displacement of the top block is detected by a displacement sensor to detect the pressure between the plate roller 233 and the first impression roller 234, the plate roller 233 and the anilox roller 232.

[0116] Further, the flexographic printing mechanism further comprises a driving module 238 to drive the rotation of the anilox roller 232, the plate roller 233 and the first impression roller 234 and the like through the driving module 238.

[0117] Further, referring to Figure 9 The intaglio printing structure 27 of the present application comprises a second ink duct 271, an intaglio roller 272, a second doctor blade 273, a third nozzle 274 and an impression cylinder 275.

[0118] Further, referring to Figure 10 The screen printing structure 28 of the present application comprises a second impression roller 281, a third doctor blade 282 and a screen roller 283.

[0119] Further, referring to Figure 11The slit printing structure 29 of the present application comprises an ink inlet pipe 291, a coating die 292, and a pressure roller 293.

[0120] Further, referring to Figure 12 The digital inkjet printing structure 210 of the present application comprises a nozzle 2101, a substrate 2102, and a conveying roller 2103, and has a high voltage electric field between the nozzle 2101 and the substrate 2102, forming a pulling force to make the ink be sprayed on the substrate 4 according to the digital program target, and the conveying roller 2103 provides power for the substrate 4.

[0121] Further, the drying structure 24 of the present application integrates multiple drying modes to adapt to different printing modes, such as a combination of any multiple of hot air drying, infrared drying, UV drying, and contact drying, to open the corresponding drying mode according to different printing modes.

[0122] Specifically, the drying structure 24 of the preferred embodiment realizes the integration of multiple drying modes by the following ways:

[0123] As shown in Figure 13 The drying structure 24 comprises a fixed cover 241 and a drying oven 242, and the fixed cover 241 and the drying oven 242 combine to form a sealed structure and form a feeding channel therebetween, wherein the feeding channel has an inlet 243 and an outlet 244 at two ends respectively, and the substrate 5 printed by the printing device enters the drying structure 24 for drying through the inlet 243, and is sent out through the outlet 244 after drying.

[0124] Meanwhile, a row of rollers 245 is arranged on the side of the feeding channel close to the fixed cover 241 to support the substrate 5 sent into the drying structure 24; an inner box 246 is arranged in the drying oven 242, and an air inlet pipe 247 is connected to one side of the inner box 246 to send hot air into the inner box 246 through the air inlet pipe 247; a row of air knives 248 is arranged on the side of the inner box 246 close to the feeding channel to blow out the hot air in the inner box 246 through the air knives 248 for blowing and drying the ink on the surface of the substrate 5 in the feeding channel, and the position of the air knives 248 is opposite to the rollers 245 to prevent the substrate 5 from being blown and deformed; and the feeding channel is communicated with an air outlet pipe 249 to discharge the hot air through the air outlet pipe 249. It can be understood that the row of rollers 245 of the present application comprises multiple rollers 245 arranged at intervals, and the row of air knives 248 comprises multiple air knives 248 arranged at intervals.

[0125] Meanwhile, a first infrared lamp tube 2410 is arranged between every two air knives 248 to dry the ink on the front side of the substrate 5 through infrared radiation; a large water-cooled roller 2411 is arranged on one side of the middle section of the feeding channel close to the fixed cover 241, and hot water at about normal temperature to 90℃ flows through the inside of the water-cooled roller 2411, so that the ink can be dried through the contact between the substrate 5 and the water-cooled roller 2411; and a UV curing box 2412 is arranged on the side of the feeding channel away from the water-cooled roller 2411 to dry the UV ink through UV drying.

[0126] Preferably, the fixed cover 241 and the oven 242 are arranged in a symmetrical inverted V shape, and a symmetrical inverted V-shaped feeding channel is formed to shorten the length of the occupied space of the drying structure 24 under the premise of ensuring the length of the drying path. At this time, the feeding inlet 243 and the discharging outlet 244 of the feeding channel are arranged at the two ends of the bottom of the inverted V shape, and the UV curing box 2412 is arranged at the top of the inverted V shape.

[0127] Preferably, a second infrared lamp tube 2413 is arranged between every two rollers 245 and arranged opposite to the first infrared lamp tube 2410 to dry the back side of the substrate 5, and since the substrate 5 is transparent, the front side of the substrate 5 can also be indirectly dried through light radiation.

[0128] Preferably, temperature sensors 2414 are respectively installed at the upper and lower ends of the two sides of the oven 242 to detect and feedback the temperature inside the oven 242, so that the temperature can be fed back in real time, and finally the power of various drying can be controlled according to percentage, and the temperature can be accurately controlled.

[0129] The selection of the above drying mode has certain relationship with the type and thickness of the ink when combined with the printing mode. For example, when the ink is UV ink, only the UV curing box 2412 and the water-cooled roller 2411 can be turned on, the temperature of the water-cooled roller 2411 is set to 70℃, and other drying is turned off; when solvent-based ink is selected, such as water-based ink and organic solvent ink, the UV curing box 2412 can be turned off, and the power of the hot air, infrared and other drying parts can be turned on, and if the ink layer is thick, the hot air and infrared drying can be turned on at full power.

[0130] Further, the winding device 3 mainly winds the finished product after printing into a certain specification of roll to facilitate storage and transportation, and ensures that the roll is neat and beautiful.

[0131] For example, the substrate 5 is a transparent PET film, and the ink is UV ink, so the UV curing box 2412 and the water-cooled roller 2411 are turned on, and the temperature of the water-cooled roller 2411 is set to 70℃. Figure 14As shown, the winding device 3 in the preferred embodiment specifically includes a third correction structure 31, a quality observation structure 32, an image display structure 33, a second tension detection structure 34, a second traction structure 35, a second antistatic structure 36, and a second core support structure 37 arranged sequentially. The third correction structure 31 corrects the conveying position of the finished product when it deviates from its designated path. The quality observation structure 32 checks the final quality of the printed product. The image display structure 33 is electrically connected to the quality observation structure 32 and displays the detection results of the quality observation structure 32, serving as the operating interface for the printing equipment for staff to view and operate. The second tension detection structure 34 detects the real-time tension value during winding, providing a tension reference. The second traction structure 35 provides forward propulsion for conveying the printed product. The second antistatic structure 36 removes static electricity from the surface of the finished product, preventing dust adhesion and affecting the cleanliness of the finished product. The second core support structure 37 can rotate along its own axis to wind and support the finished product.

[0132] Furthermore, to achieve a globally cleanroom standard and prevent interference with printing quality due to substandard environmental quality, the flexible sensor printing equipment of this invention also includes a purification device, specifically comprising a purification hood 41 and a filter structure. The purification hood 41 is entirely covered by the unwinding device 1, the printing device, and the rewinding device 3, forming a sealed environment within the purification hood 41 to isolate the production environment from the external environment. Figure 17 and Figure 18 As shown in the figure. At the same time, at least one air inlet 43 is provided on one side of the purification hood 41, and at least one air outlet 42 is provided on the other side for ventilation. Filtering mechanisms are provided at the air inlet 43 and the air outlet 42 to purify the ventilated air.

[0133] It is understood that one side of the device mentioned here can be any direction, such as up, down, left, right, front, or back. Figure 17 and Figure 18 In the preferred embodiment, the air inlet 43 is located on the lower side of the device, and the air outlet 42 is located on the upper side of the device, forming a ventilation direction as shown by the arrow in the figure. Simultaneously, each device is provided with an air inlet 43, an air outlet 42, and a first filter module 44.

[0134] Preferably, to ensure the airtightness of the purification hood 41, the present invention seals the entire perimeter of the purification hood 41. For areas that do not require opening or closing, see [link to relevant documentation]. Figure 15 The configuration involves installing a fixed cover 412 on the fixed frame 411, and attaching a sealing ring 413 between the fixed frame 411 and the fixed cover 412 at their contact points. For areas requiring opening and closing, see [link to relevant documentation]. Figure 16Its structure is set as a fixed frame 414, a sealing strip 415 and a movable sealing plate 416; the traditional movable sealing plate 416 is generally set to be in surface contact with the fixed frame 414, but since sheet metal parts are generally not particularly flat during processing, a particularly large force is required to seal the fixed frame 414 and the movable sealing plate 416 well.

[0135] To avoid inadequate sealing due to insufficient force, the present invention provides a C-groove 417 on the side of the movable sealing plate 416 near the fixed frame 414, and places the sealing strip 415 in the C-groove 417; at the same time, a retaining strip 418 is provided on the side of the fixed frame 414 near the movable air plate corresponding to the C-groove 417, so that when the movable sealing plate 416 needs to be closed, the retaining strip 418 can be embedded in the C-groove 417, forming edge contact between the movable sealing plate 416 and the fixed frame 414, thereby reducing the contact area between the two and facilitating better sealing.

[0136] like Figure 17 As shown, the filtration structure in the preferred embodiment includes a first filter module 44, and the first filter module 44 is installed at each air inlet 43 and air outlet 42 to filter and purify the air through the first filter module 44, and to achieve air exchange between the inside and outside of the device only through the first filter module 44.

[0137] In the preferred embodiment, the first filter module 44 includes three layers of filters: a pre-filter, an activated carbon filter, and a high-efficiency filter, arranged sequentially from the inside to the outside of the device, to ensure effective air filtration. Preferably, a small fan 45 is also installed on the first filter module 44 at the air inlet 43 to accelerate the air intake and form a full ventilation channel.

[0138] Furthermore, in another specific embodiment of the present invention, see... Figure 18 In the filtration structure, an air inlet channel 46 is provided corresponding to the air intake. A second filter module 47 and a fan 48 are sequentially spaced at one end of the air inlet channel 46, with the second filter module 47 positioned near the port of the air inlet channel 46. Simultaneously, several branch pipes 49 are provided at the other end of the air inlet channel 46 corresponding to the number of air inlets 43. This allows the air inlet channel 46 to connect with each air inlet 43 via the branch pipes 49, enabling air to be delivered from one air inlet channel 46 to multiple air inlets 43, introduced into the production space of each equipment, and discharged through multiple air outlets 42 by the first filter modules 44, ultimately completing ventilation and achieving air purification. Figure 17 The direction indicated by the arrow in the diagram is the ventilation direction of the equipment under this filtration mechanism.

[0139] Preferably, at least one air inlet 43 and at least one air outlet 42 are respectively arranged in each device in the corresponding equipment, and at least one air inlet 43 and at least one air outlet 42 are respectively arranged in each printing unit 2 in the corresponding printing device, so as to ensure the air circulation in the production environment.

[0140] The purification device of the present application takes the whole equipment as the reference object, and seals the unwinding end, the printing end and the winding end of the equipment in the purification device as a whole, and fully considers the circulation path of the air flow, so that all the air in the equipment can be effectively replaced and purified, and the number of dust particles greater than or equal to 0.5 microns in each cubic meter of air is not more than 35 million, and the number of dust particles greater than or equal to 5 microns in each cubic meter of air is not more than 200,000, which provides a solid foundation for improving the printing precision.

[0141] The flexible sensor printing equipment in the present application has a compact and reasonable structure arrangement, a variety of selection modes of each functional module, and accurate control, which effectively improves the printing precision and printing speed of the printing equipment, improves the production efficiency, and has good application prospect and popularization value.

[0142] Those skilled in the art can easily understand that the above description is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A flexible sensor printing device, comprising an unwinding device, a printing device, and a rewinding device, characterized in that, The printing apparatus includes at least one printing unit, which includes a printing structure and a drying structure. The printing structure prints ink onto a substrate, and the drying structure dries the printed ink. The drying structure integrates multiple drying modes to adapt to various printing modes. The drying structure includes at least one combination of hot air drying, infrared drying, UV drying, and contact drying; the drying structure includes a fixed cover and an oven, the fixed cover and the oven forming a sealed feeding channel, with an inlet and an outlet at each end of the feeding channel. A row of rollers is provided on the side of the feeding channel near the fixed cover to support the substrate fed into the drying structure; The oven is equipped with an inner chamber, one side of which is connected to an air inlet pipe to deliver hot air into the inner chamber. A row of air knives is provided on the side of the inner chamber near the feeding channel. The hot air in the inner chamber is blown out through the air knives, and the air knives are positioned directly opposite the roller. The feeding channel is connected to the exhaust pipe to discharge the hot air through the exhaust pipe. A first infrared lamp is provided between every two air knives, a water-cooled roller is provided on the side of the middle section of the feeding channel near the fixed cover, and a UV curing box is provided on the side of the feeding channel away from the water-cooled roller. The feeding channel is symmetrically arranged in an inverted V shape, and the inlet and outlet of the feeding channel are respectively located at the bottom ends of the inverted V shape. The UV curing box is located at the top of the inverted V shape. A second infrared lamp is also provided between every two rollers and is arranged opposite to the first infrared lamp. A temperature sensor is also provided inside the oven. The printing equipment also includes a purification device, which includes a purification hood and a filtration mechanism. The purification hood is a sealed enclosure located outside the unwinding device, the printing device, and the rewinding device. At least one air inlet and at least one air outlet are provided on the purification hood for each device, and at least one air inlet and at least one air outlet are provided for each printing unit in the printing device for ventilation. The filtration mechanism is located at the air inlet and the air outlet to purify the ventilated air. The filtration mechanism includes a first filter module installed at each air inlet and outlet. The first filter module comprises three layers of filters: a pre-filter, an activated carbon filter, and a high-efficiency filter, arranged sequentially from the inside of the device to the outside. A small fan is also installed on the first filter module at each air inlet. Alternatively... The filtration mechanism includes a first filter module, a second filter module, a fan, an air inlet channel, and branch pipes; one end of the air inlet channel is sequentially provided with the second filter module and the fan, and the other end is connected to each air inlet through a plurality of branch pipes; the first filter module is installed at each air outlet.

2. The flexible sensor printing equipment according to claim 1, characterized in that, The printing apparatus includes multiple printing units, wherein the printing patterns of the multiple printing units are the same, or at least two of the printing units have different printing patterns.

3. The flexible sensor printing equipment according to claim 2, characterized in that, Each of the printing units is also provided with a first correction structure, a first floating roller structure, and a visual monitoring system; The first correction structure is located near the upstream of the printing unit and is used to correct the conveying position of the substrate entering the printing unit. The first floating roller structure is located near the downstream of the printing unit and is used to adjust the tension of the substrate; The visual monitoring system is connected to the color matching system to monitor the printing effect and transmit the monitoring results to the color matching system. The color matching system calculates the deviation and feeds it back to adjust the operating parameters accordingly.

4. The flexible sensor printing equipment according to claim 3, characterized in that, The visual monitoring system includes a first visual monitoring unit, which is disposed between the printing structure and the drying structure, and sets a reference point on the printing structure. The first visual monitoring unit is used to detect the position between the printed pattern and the reference point and transmit it to the color matching system. The color matching system calculates the positional deviation between the printed pattern and the reference point and compensates for the deviation by adjusting the position of the printing roller in the feeding direction and the position of the printing roller in the axial direction. and / or The visual monitoring system also includes a second visual monitoring unit, which is located between the drying structure and the first floating roller structure. The second visual monitoring unit is used to detect the actual color of the printed pattern after drying and transmit it to the color matching system. The color matching system compares the actual color with the standard color and adjusts the printing pressure and drying temperature according to the color deviation.

5. The flexible sensor printing equipment according to claim 1, characterized in that, At least one of the printing structures is a flexographic printing process, and the printing structure includes a frame, an anilox roller, a printing plate roller, an impression roller, and an ink supply module. The anilox roller, the printing plate roller, and the impression roller are arranged in parallel and can all be rotatably mounted on the frame. The anilox roller and the impression roller are both located on one side of the printing plate roller. The anilox roller is in contact with the printing plate roller. The impression roller and the printing plate roller are used to clamp the printing substrate. A doctor blade is provided on one side of the anilox roller. The ink supply module includes a first nozzle, an ink fountain, an ink tank, and an ink pump. The first nozzle is slidably arranged on the frame, and the sliding direction of the first nozzle extends along the axial direction of the anilox roller to uniformly spray ink onto the surface of the anilox roller. The ink tank is filled with ink. The ink tank, the ink pump, and the first nozzle are connected in sequence through pipes. The ink fountain is located on one side of the anilox roller to collect the ink scraped off the surface of the anilox roller by the doctor blade. The ink tank is located below the ink fountain, and a filter is inserted into the opening of the ink tank. The openings of the ink fountain and the ink tank are connected through pipes to filter the recovered ink.

6. The flexible sensor printing equipment according to claim 1, characterized in that, The unwinding device includes: a first core support structure, a paper receiving platform structure, a corona structure, a second correction structure, a dust removal structure, a second floating roller structure, a first traction structure, a first tension detection structure, a first antistatic structure, and a preheating roller structure; wherein, the first core support structure is located at the beginning of the printing equipment, the paper receiving platform structure is located downstream of the first core support structure, the first traction structure, the first tension detection structure, the first antistatic structure, and the preheating roller structure are sequentially arranged on the side of the unwinding device close to the printing equipment, and the corona structure, the second correction structure, the dust removal structure, and the second floating roller structure are arranged between the paper receiving platform structure and the first traction structure; and / or The winding device includes: a third correction structure, a quality observation structure, an image display structure, a second tension detection structure, a second traction structure, a second antistatic structure, and a second core support structure arranged in sequence, wherein the third correction structure is located on the side of the winding device close to the printing device.

Images