Processing device of two-way stretching flexible electronic device

Abstract

The invention discloses a processing device for a two-way stretching flexible electronic device in the technical field of flexible electronic device processing, which comprises a base, a vertical through groove is formed in the center of the base, a displacement assembly is fixedly connected to the base, a clamping assembly is fixedly connected to the periphery of the displacement assembly, and a heating assembly is fixedly connected to the displacement assembly. A dehumidification assembly is arranged in the through groove, a display controller is fixedly connected to the side wall of the base, and the displacement assembly, the clamping assembly, the heating assembly and the dehumidification assembly are all in signal connection with the display controller. Through flexible clamping of the air bag and suction of the suction cup, material surface scratching caused by the too high friction coefficient of the clamping face is avoided, the longitudinal angle of the nozzle can be electrically adjusted through the design of the hot air ring pipe and the nozzle, and heating air evenly flows on the upper surface and the lower surface of a machined material; the curing deviation of the flexible electronic base material caused by uneven heating is avoided, the reliability, the consistency and the production efficiency of the flexible electronic device are remarkably improved, and the improvement of the processing yield is promoted.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of flexible electronic device processing, and specifically relates to a processing device for bidirectional stretching of a flexible electronic device. BACKGROUND

[0002] The rise of flexible electronics technology is rooted in people's imagination of electronic devices that can be bent, stretched and even rolled up. From health monitoring patches on the wrist to robots with pressure-sensing "skin" all over their surface, these scenarios require electronic devices to withstand repeated deformation in two directions without failure. However, the unidirectional traction machine and static pressing table commonly used in early laboratories can only stretch the film in one direction, while the other direction is forced to shrink or wrinkle, and the device will soon crack under cross-stress. Such unidirectional tools obviously cannot replicate the real mechanical environment of human skin, which can be stretched in both the warp and weft directions.

[0003] To break through this limitation, engineers began to try to hold the film between a pair of rubber rollers and attempt to stretch the film horizontally and vertically by rotating the rollers in sync. However, in actual operation, the contact surface between the rollers and the film is only a thin line, and insufficient clamping force causes the film to deviate; the thickness difference between different batches of materials makes it difficult to adjust the roller spacing at one time, and the film slips when it is too thin and gets stuck when it is too thick; even if the two motors are out of sync by milliseconds, the film will be torn with a diagonal crack. Even if a flexible rubber sleeve is placed on the roller, the difference in strain between the sleeve and the processing material can easily cause scratches on the surface of the processing material during stretching, or cause irreversible deformation. As shown in the patent document with publication number CN118574331A, the stretching of the flexible processing material is achieved by clamping it between two pairs of rollers on the base, but the above problems cannot be avoided.

[0004] Moreover, the existing equipment is prone to cause a large temperature difference between the upper and lower layers of the flexible circuit board substrate after processing and drying, resulting in uneven curing. In addition, some processing materials may absorb too much moisture in a high humidity environment, causing delamination during stretching.

[0005] Therefore, it is necessary to provide a bidirectional stretching flexible electronic device processing device that can avoid scratches on the surface of the material by using flexible clamping to process the material and avoid a high friction coefficient on the clamping surface, and can adjust the hot air drying angle according to the stretching area of the processed material to uniformly heat the upper and lower surfaces of the circuit board substrate and uniformly cure the circuit board substrate. SUMMARY

[0006] To address the aforementioned issues, the present invention aims to provide a processing apparatus for biaxially stretched flexible electronic devices. Through an annular displacement component, a flexible rotational effect is achieved when clamping the processed material. Flexible clamping by an airbag and suction cup adsorption prevent surface scratches caused by excessive friction coefficients on the clamping surfaces. Magnetorheological fluid damping precisely controls clamping and stretching displacement in multiple directions, preventing uneven tension. The design of the hot air ring pipe and nozzle allows for electric adjustment of the nozzle's longitudinal angle, ensuring uniform flow of heating air across the upper and lower surfaces of the processed material. This prevents uneven heating that could lead to curing deviations in the flexible electronic substrate, significantly improving the reliability, consistency, and production efficiency of flexible electronic devices, and promoting a higher yield rate.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows: A processing device for biaxially stretched flexible electronic devices includes a base, a vertical through groove in the center of the base, a displacement component fixedly connected to the base, a clamping component fixedly connected to the outer periphery of the displacement component, a heating component fixedly connected to the displacement component, a dehumidification component provided in the through groove, and a display controller fixedly connected to the side wall of the base. The displacement component, clamping component, heating component, and dehumidification component are all signal connected to the display controller.

[0008] The displacement component is used to rotate and adjust the clamping and stretching direction of the clamping component;

[0009] Clamping assembly for fixing processed materials by deformation adsorption clamping and magnetorheological fluid damping tension locking;

[0010] Heating components are used to generate double-layer vortex hot air to simultaneously and uniformly dry the processed materials.

[0011] Dehumidification components are used for dehumidification using negative pressure molecular sieves and semiconductor condensation, and for moisture prevention using positive pressure nitrogen filling and semiconductor condensation.

[0012] The principle of the basic scheme is: through the annular displacement assembly to drive the clamping assembly to realize 360° continuous rotation, the air bag and the suction cup cooperate during rotation, the air bag first deforms flexibly to fit the material profile, and the suction cup then generates negative pressure adsorption, the two work alternately to convert the shear force of the clamping contact surface into uniformly distributed normal force, avoiding the high friction damage of traditional rigid clamps; the magnetorheological fluid damper adjusts the excitation current in real time according to the angular velocity signal fed back by the displacement assembly during the stretching stage, so that the liquid damping body generates gradient solidification in different directions, and the rotary motion is converted into precise displacement amount of multi-axis stretching; the hot air ring tube forms an upper and lower symmetrical vortex layer through the longitudinal angle adjustment of the electric nozzle, the upper vortex blows the upper surface of the material at an angle of 15°, and the lower vortex blows the lower surface at the same angle, the two air flows meet at the center line of the material to generate turbulent flow to strengthen heat transfer, and ensure that the flexible substrate and the functional layer reach the solidification temperature synchronously; the dehumidification assembly captures water molecules through the mesoporous channel of the molecular sieve during the negative pressure stage, when the detected dew point temperature is higher than the set threshold, the semiconductor condenser starts the Peltier effect to liquefy and discharge water vapor, and then injects 99.99% pure nitrogen to replace the cavity, and the nitrogen forms an inert atmosphere barrier under positive pressure to block the penetration of environmental humidity. The whole system dynamically couples the rotation angular velocity, damping magnetic field strength, nozzle angle and humidity parameters through the PID algorithm built in the display controller, to realize the time-sequential cooperative control of stretching-heating-dehumidification.

[0013] The beneficial effects of the basic scheme are: 1. The magnetorheological fluid damper has a millisecond-level magnetic field response speed, which can dynamically adjust the solidification strength of the damping body in different directions according to the real-time angular velocity data of the displacement assembly. Specifically, when the rotation speed of the annular displacement assembly changes, the damper can instantaneously adjust the magnetic field strength, so that the liquid damping body forms precise gradient solidification in the required stretching direction, thereby strictly controlling the error of multi-axis stretching force within ±0.5N, effectively solving the problem of uneven tension caused by mechanical structure limitations in traditional stretching devices, and ensuring that the flexible electronic device is evenly stressed during stretching, preventing material damage or deformation caused by excessive local tension.

[0014] 2. The heating assembly adopts a double-vortex hot air system, the upper vortex nozzle accurately blows the upper surface of the material at an angle of 15°, and the lower vortex nozzle blows the lower surface at the same angle, the two air flows meet at the center line of the material to form strong turbulent flow and strengthen heat transfer effect. Effectively avoid the curing deviation of flexible electronic substrate caused by uneven heating, and improve the consistency of device performance.

[0015] 3. The dehumidification component integrates negative pressure molecular sieve and semiconductor condensation technology. The mesoporous channels of the molecular sieve can efficiently capture water molecules under negative pressure. When the dew point temperature inside the chamber exceeds the set threshold, the semiconductor condenser quickly activates the Peltier effect to liquefy and discharge water vapor. Subsequently, by injecting 99.99% pure nitrogen to replace the chamber, an inert atmosphere barrier is built under positive pressure, completely blocking the intrusion of environmental humidity. This provides comprehensive humidity protection for the processing environment of flexible electronic devices, ensuring the stability of humidity-sensitive materials and thus significantly improving the yield of devices.

[0016] 4. The annular displacement component supports 360° continuous rotation. Operators can adjust the stretching direction in real time according to the material texture and process requirements of flexible electronic devices, effectively reducing the stress concentration factor by up to 62%, providing precise adaptation to the anisotropy of materials, and enhancing the flexibility and adaptability of the stretching process.

[0017] 5. The clamping assembly innovatively integrates airbag flexible deformation and suction cup negative pressure adsorption technology. The airbag first gently conforms to the material contour through flexible deformation, while the suction cup then generates negative pressure for stable adsorption. The two work together to convert the shear force at the clamping contact surface into a uniformly distributed normal force. Practical applications show that this clamping method can reduce the surface scratch defect rate of flexible materials to below 0.3%, effectively avoiding the surface scratch problem caused by the high coefficient of friction of traditional rigid clamps, and ensuring the surface quality of the device.

[0018] Furthermore, the displacement assembly includes a processing cavity inside the base, which communicates with a through slot. A first annular bracket and a second annular bracket are fixedly connected to the top and bottom walls of the processing cavity, respectively. Both the first and second annular brackets are sleeved with the through slot. Both the first and second annular brackets have symmetrical annular grooves. A first displacement ring is slidably fitted in the annular groove of the first annular bracket, and a second displacement ring is slidably fitted in the annular groove of the second annular bracket. Displacement tooth grooves are formed on the outer walls of both the first and second displacement rings. A displacement motor is fixedly connected to the outer walls of both the first and second annular brackets. A displacement gear is coaxially fixedly connected to the output shaft of each displacement motor. The displacement gear meshes with the corresponding displacement tooth groove. Both displacement motors are connected to the display controller via signals.

[0019] The beneficial effects of the basic scheme are: 1. The displacement component achieves precise control of multi-axis displacement through the coordinated operation of the annular bracket, displacement ring, toothed groove, and motor. The displacement motor, based on the instructions from the display controller, drives the displacement ring to slide smoothly within the annular groove via the meshing of gears and toothed grooves, ensuring accurate displacement of the clamping component in multiple axes and providing a solid foundation for subsequent stretching operations.

[0020] 2. With the ingenious design of the ring-shaped support and the displacement ring, the displacement assembly endows the clamping assembly with flexible bidirectional rotation capability, which can quickly adjust the stretching direction according to the processing requirements of the flexible electronic device, meet the precise requirements of different processes on the stretching angle, and improve the flexibility and adaptability of processing.

[0021] Further, the clamping assembly includes four clamping pieces distributed in a quadrilateral shape, each of which includes a clamping support symmetrically arranged in a "U" shape, one end of the bifurcated clamping support is fixedly connected with the outer side wall of the first displacement ring, the other end of the bifurcated clamping support is fixedly connected with the outer side wall of the second displacement ring, one end of the clamping support away from the through slot is fixedly connected with a stretching electric control cylinder, the output shafts of the stretching electric control cylinders on the same side clamping support are fixedly connected with a clamping rod, and the stretching electric control cylinders are signal connected with the display controller.

[0022] The beneficial effects of the basic scheme are: 1. The clamping assembly, through the four clamping pieces distributed in a quadrilateral shape, cooperates with the stretching electric control cylinder to realize multi-directional stretching of the flexible electronic device. The symmetrical arrangement of the clamping pieces ensures uniform stress during stretching, avoids material deformation or damage caused by uneven single-point stress, and improves processing quality.

[0023] 2. The "U" shape design of the clamping support and the fixed connection mode with the displacement ring provide stable clamping force, and can adapt to flexible electronic devices of different sizes and shapes, enhancing the versatility and adaptability of the device.

[0024] Further, the two ends of the clamping rod close to the stretching electric control cylinder are rotatably sleeved with support gears, the inner side bottom wall of the clamping support close to the clamping rod is opened with a support tooth groove corresponding to the support gear, the support gear is opened with a ring-shaped damping cavity and a coil groove inside, the inner wall of the damping cavity is fixedly connected with a plurality of layers of outer damping rings, the outer periphery of the clamping rod located in the damping cavity is fixedly connected with a plurality of layers of inner damping rings, the inner damping rings and the corresponding outer damping rings are interlaced, the damping cavity is filled with magnetorheological fluid, and the coil groove is wound with an excitation coil. The excitation coil is signal connected with the display controller.

[0025] The beneficial effects of the basic scheme are: 1. The meshing of the support gear and the support tooth groove with the magnetorheological fluid damping system can effectively buffer the impact force during stretching, realize accurate stretching force control, and prevent material deformation or damage caused by excessive or uneven stretching force.

[0026] 2. After the excitation coil is electrified, a magnetic field is generated, which changes the viscosity of the magnetorheological fluid, and then adjusts the damping force, realizes efficient conversion and utilization of energy, and improves the stability and response speed of the stretching process. By adjusting the current of the excitation coil, the size of the damping force can be flexibly changed to adapt to different materials and process requirements, and the versatility and flexibility of the equipment are enhanced. The entire damping system is integrated inside the support gear, which is compact in structure, occupies less space, reduces external interference, and improves the reliability and durability of the system.

[0027] Further, the middle part of the clamping rod is axially provided with a clamping groove, and a plurality of clamping feet distributed on both sides of the clamping groove are symmetrically hinged on the clamping rod. The clamping feet on the same clamping rod are all parallel to the through groove, and the clamping feet are all composed of a plurality of clamping arms hinged with each other. A plurality of driving air bags are fixedly connected in the clamping feet, which are used to bend and drive the corresponding clamping feet to symmetrically clamp the processed materials after inflation. The side of the clamping arm close to the processed materials is fixedly connected with a suction cup, and the bottom wall of the suction cup is provided with a main cavity and a plurality of peripheral cavities. The peripheral cavities on the same suction cup are annularly distributed outside the main cavity, and the main cavity and the peripheral cavities are all communicated with air passages.

[0028] The inside of the clamping rod is fixedly sleeved with an inflation pipe, and the inflation pipe and the corresponding driving air bag are respectively communicated through a solenoid valve. The two ends of the inflation pipe pass through the two ends of the clamping rod and are all communicated with air pumps. The air pumps are fixedly connected with the inner wall of the processing cavity. The solenoid valve and the air pump are signal connected with the display controller.

[0029] The beneficial effects of the basic scheme are: 1. The driving air bag is inflated to drive the clamping foot to bend, and cooperates with the adsorption of the suction cup to realize non-destructive clamping of the flexible electronic device, effectively avoiding the problem of material surface scratching caused by excessive friction in the traditional mechanical clamping mode. The clamping foot is composed of a plurality of hinged clamping arms, which has good flexibility and adjustability, can adapt to different shapes and sizes of processed materials, and ensures the stability and reliability of clamping. The multiple clamping feet are symmetrically distributed and act synchronously, so that the clamping force is evenly distributed on the surface of the material, preventing the material from deforming due to excessive local pressure, and improving the processing precision.

[0030] 2. The main cavity and the peripheral cavity of the suction cup can generate strong adsorption force to ensure the stable fixation of the material during processing. At the same time, when the material needs to be released, the gas can be quickly discharged by controlling the solenoid valve and the air pump to realize the rapid release of the material and improve the production efficiency. The solenoid valve and the air pump are signal connected with the display controller, realizing the automation and intelligent control of the clamping process. The clamping force and clamping time can be accurately adjusted according to different process requirements, improving the ease of use and adaptability of the equipment.

[0031] Further, the heating assembly comprises a hot air blower fixedly connected with the base, a "Y"-shaped hot air pipe is communicated with an output end of the hot air blower, a filtering molecular sieve is laid on an input end of the hot air blower, the filtering molecular sieve is used for removing moisture absorbed by the hot air blower, and the hot air blower is signal connected with the display controller.

[0032] The beneficial effects of the basic scheme are: 1. The hot air blower uniformly distributes hot air to the processing area through the "Y"-shaped hot air pipe, ensuring that the flexible electronic device is evenly heated during the heating process, effectively avoiding changes or damage to the material performance caused by local overheating or uneven heating.

[0033] 2. The filtering molecular sieve is installed at the input end of the hot air blower, effectively removing moisture in the air, ensuring the dryness of the hot air, preventing the influence of moisture on the processing process, especially suitable for electronic materials sensitive to humidity, and improving the processing quality.

[0034] Further, the heating assembly further comprises symmetrically arranged hot air ring pipes, the hot air ring pipes are fixedly connected with the clamping supports away from the through grooves, the two ends of the hot air pipe are respectively communicated with the two sides of the symmetrically arranged hot air ring pipes, the nozzles are slidably sleeved on the hot air ring pipes, the hot air grooves are opened on the corresponding outer walls of the hot air ring pipes and communicated with the nozzles, the nozzles on the same hot air ring pipe are inclined at the same radial angle, the nozzles between different hot air ring pipes correspond to each other, the push rods are hingedly connected to the side walls of the nozzles, the corresponding push rods are coaxially opposite, the push threads are opened on the push rods, the push threads on the corresponding push rods are opposite, the push sleeves are threadedly sleeved between the corresponding push rods, and the push teeth grooves are opened on the outer periphery of the push sleeves.

[0035] The heating assembly further comprises a push tooth ring, the push tooth ring is slidably matched with the clamping supports at the ends, the driving tooth grooves are opened on the inner sides of the push tooth rings, the driving tooth grooves and the push tooth grooves are meshed, the push motors are fixedly connected with the clamping supports at the ends, the push gears are coaxially fixedly connected with the output shafts of the push motors, the driven tooth grooves are opened on the outer sides of the push tooth rings, and the driven tooth grooves and the push gears are meshed. The push motors are signal connected with the display controller.

[0036] The beneficial effects of the basic scheme are: the hot air ring pipes are symmetrically arranged and fixedly connected with the clamping supports, ensuring that the hot air can be uniformly distributed around the processed materials. The inclined design of the nozzles allows the hot air to blow at a certain angle to the materials, enhancing the coverage range and heating effect of the hot air, and effectively reducing the temperature gradient. The nozzles are slidably sleeved on the hot air ring pipes, and the push threads of the push rods and the push sleeves are threadedly matched, and the push tooth ring and the push gear are meshed and driven, so that the angle of the nozzle can be flexibly adjusted. This design can accurately adjust the direction of the hot air according to the shape of the material and the processing requirements, improving the heating efficiency and adaptability.

[0037] Further, the dehumidification assembly comprises a ventilation pump fixedly connected with the inner wall of the through groove, a dehumidification molecular sieve laid on the output end of the ventilation pump, a nitrogen storage tank communicated with the input end of the ventilation pump through a reversing valve, and the reversing valve is also communicated with the outside world, and the ventilation pump and the reversing valve are both signal-connected with the display controller.

[0038] The beneficial effect of the basic scheme is that the dehumidification assembly realizes efficient dehumidification and moisture-proof function through the cooperative work of the ventilation pump, the dehumidification molecular sieve, the reversing valve and the nitrogen storage tank. In the dehumidification process, the ventilation pump extracts the moisture in the through groove, which is discharged after being adsorbed by the dehumidification molecular sieve, effectively reducing the humidity of the processing environment and ensuring the processing quality. The setting of the reversing valve enables the ventilation pump to extract moisture and introduce dry nitrogen. Through the accurate control of the display controller, the working mode can be quickly switched according to the processing requirements, realizing accurate humidity control and providing a stable humidity environment for the processing of flexible electronic devices.

[0039] Further, the top wall of the base is fixedly connected with a plurality of semiconductor condensing pieces distributed in a ring shape around the outer periphery of the through groove, and the top wall of the base between the semiconductor condensing pieces is provided with a dehumidification groove for leading out condensed water.

[0040] The beneficial effect of the basic scheme is that the semiconductor condensing pieces are distributed in a ring shape around the outer periphery of the through groove, which can quickly condense water vapor in the through groove into liquid water through the principle of semiconductor condensation and lead it out through the dehumidification groove, significantly improving the dehumidification efficiency and ensuring the dryness of the processing environment.

[0041] Further, the display controller is provided with a monitoring module, a processing module and a control module;

[0042] The monitoring module is used for collecting the strain and physicochemical property change data of the processing material, including a temperature sensor, a humidity sensor, a capacitance sensor and a fiber grating sensor, the temperature sensor is fixedly connected with the inner top wall of the processing cavity, the humidity sensor is fixedly connected with the through groove, and the capacitance sensor and the fiber grating sensor are both fixedly connected with the end of the clamping foot;

[0043] The processing module is used for judging whether the monitored strain and physicochemical property change data exceed the preset threshold according to the type of the processing material;

[0044] The control module is used for controlling the corresponding components of the above-mentioned device to control the monitoring data within the threshold range according to the judgment result of the processing module.

[0045] The beneficial effect of the basic scheme is that the monitoring module built-in the display controller collects the strain and physicochemical property change data of the processing material in real time through the temperature sensor, the capacitance sensor and the fiber grating sensor, realizes comprehensive monitoring of the processing process and ensures the accuracy of the processing parameters.

[0046] The control module automatically controls the corresponding components of the device according to the judgment result of the processing module, and dynamically adjusts the monitoring data to the threshold range. This closed-loop control system can quickly respond to process changes, ensuring the stability and reliability of the processing process. The display controller can integrate and analyze a large amount of real-time data, providing data support for process optimization, promoting continuous improvement and technological innovation, and improving overall production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 The isometric view of the processing device of the bidirectional stretching flexible electronic device in the embodiment of the application.

[0048] Figure 2 The front view of the processing device of the bidirectional stretching flexible electronic device in the embodiment of the application.

[0049] Figure 3 The bottom view of the processing device of the bidirectional stretching flexible electronic device in the embodiment of the application.

[0050] Figure 4 The front view of the clamping rod in the embodiment of the application.

[0051] Figure 5 The isometric view of the clamping rod in the embodiment of the application. Figure 2 The enlarged view of part A in the embodiment of the application.

[0052] Figure 6 The isometric view of the clamping rod in the embodiment of the application. Figure 2 The enlarged view of part B in the embodiment of the application.

[0053] Figure 7 The isometric view of the clamping rod in the embodiment of the application. Figure 3 The enlarged view of part C in the embodiment of the application.

[0054] Figure 8 The isometric view of the clamping rod in the embodiment of the application. Figure 4 The enlarged view of part D in the embodiment of the application.

[0055] The reference signs in the drawings of the specification include: 1, base; 2, dehumidification groove; 3, semiconductor condensing sheet; 4, clamping rod; 5, clamping foot; 6, through groove; 7, display controller; 8, ventilation pump; 9, reversing valve; 10, dehumidification molecular sieve; 11, nitrogen storage tank; 12, air pump; 13, inflation pipe; 14, hot air ring pipe; 15, stretching electric control cylinder; 16, clamping support; 18, pushing rod; 19, first annular support; 20, first displacement ring; 21, hot air pipe; 22, second displacement ring; 23, second annular support; 24, hot air machine; 25, filtering molecular sieve; 26, pushing tooth ring; 27, pushing gear; 28, supporting gear; 29, driving air bag; 30, clamping arm; 31, suction cup; 32, clamping groove; 33, nozzle; 34, pushing sleeve; 35, excitation coil; 36, inner damping ring; 37, outer damping ring; 38, displacement gear. DETAILED DESCRIPTION

[0056] The following detailed description illustrates the specific implementation method:

[0057] Example 1

[0058] The basics are as follows: Figures 1 to 8 As shown: A processing apparatus for biaxially stretched flexible electronic devices includes a base 1, a vertical through groove 6 in the center of the base 1, a displacement component welded on the base 1, a clamping component welded to the outer periphery of the displacement component, a heating component welded on the displacement component, a dehumidification component installed in the through groove 6, and a display controller 7 welded to the side wall of the base 1. The displacement component, clamping component, heating component and dehumidification component are all signal connected to the display controller 7.

[0059] The displacement assembly is used to rotate and adjust the clamping and stretching direction of the clamping assembly. The displacement assembly includes a processing cavity inside the base 1, which is connected to the through groove 6. A first annular bracket 19 and a second annular bracket 23 are welded to the top and bottom walls of the processing cavity, respectively. Both the first annular bracket 19 and the second annular bracket 23 are sleeved with the through groove 6. Both the first annular bracket 19 and the second annular bracket 23 have symmetrical annular grooves. A first displacement ring 20 is slidably fitted in the annular groove of the first annular bracket 19, and a second displacement ring 22 is slidably fitted in the annular groove of the second annular bracket 23. Displacement tooth grooves are opened on the outer walls of both the first displacement ring 20 and the second displacement ring 22. Displacement motors are welded to the outer walls of both the first annular bracket 19 and the second annular bracket 23. Displacement gears 38 are coaxially welded to the output shafts of both displacement motors. The displacement gears 38 mesh with the corresponding displacement tooth grooves. Both displacement motors are connected to the display controller 7 via signals.

[0060] The clamping assembly is used for clamping and magnetorheological fluid damping stretching locking of workpiece by deformation adsorption, and comprises four clamping pieces arranged in a quadrilateral shape, each of the clamping pieces comprises a symmetrically arranged U-shaped clamping support 16, one end of the clamping support 16 is welded to the outer side wall of a first displacement ring 20, the other end of the clamping support 16 is welded to the outer side wall of a second displacement ring 22, one end of the clamping support 16 away from the through slot 6 is welded with a stretching electric control cylinder 15, the output shafts of the stretching electric control cylinders 15 on the same side clamping support 16 are welded with a clamping rod 4, the stretching electric control cylinders 15 are signal connected with a display controller 7, the two ends of the clamping rod 4 close to the stretching electric control cylinder 15 are rotatably sleeved with a supporting gear 28, the inner side bottom wall of the clamping support 16 close to the clamping rod 4 is provided with a supporting tooth groove corresponding to the supporting gear 28, the supporting gear 28 is internally provided with a ring-shaped damping cavity and a coil groove, a plurality of outer damping rings 37 are welded to the inner wall of the damping cavity, a plurality of inner damping rings 36 are welded to the outer periphery of the clamping rod 4 in the damping cavity, the inner damping rings 36 and the corresponding outer damping rings 37 are staggered, the damping cavity is filled with magnetorheological fluid, and the coil groove is wound with an excitation coil 35, and the excitation coil 35 is signal connected with the display controller 7.

[0061] The middle part of the clamping rod 4 is axially provided with a clamping groove 32, a plurality of clamping feet 5 distributed on both sides of the clamping groove 32 are symmetrically hinged on the clamping rod 4, the clamping feet 5 on the same clamping rod 4 are parallel to the through slot 6, the clamping feet 5 are composed of a plurality of clamping arms 30, the clamping arms 30 are hinged to each other, a plurality of driving air bags 29 are adhered in the clamping feet 5, the driving air bags 29 are used for bending to drive the corresponding clamping feet 5 to symmetrically clamp the workpiece after inflation, a suction cup 31 is adhered to one side of the clamping arm 30 close to the workpiece, the bottom wall of the suction cup 31 is provided with a main cavity and a plurality of peripheral cavities, the peripheral cavities on the same suction cup 31 are annularly distributed on the outer periphery of the main cavity, and the main cavity and the peripheral cavities are communicated with an air duct.

[0062] The inside of the clamping rod 4 is fixedly sleeved with an inflation pipe 13, the inflation pipe 13 and the corresponding driving air bag 29 are respectively communicated through a solenoid valve, the two ends of the inflation pipe 13 pass through the two ends of the clamping rod 4 and are both communicated with an air pump 12, the air pump 12 is welded to the inner wall of the processing cavity, and the solenoid valve and the air pump 12 are signal connected with the display controller 7.

[0063] The heating assembly is used for forming double-layer vortex hot air synchronous uniform drying processing material, and comprises a hot air blower 24 welded with the base 1, a "Y"-shaped hot air pipe 21 communicated with an output end of the hot air blower 24, a filtering molecular sieve 25 laid on an input end of the hot air blower 24 and used for removing moisture absorbed by the hot air blower 24, and the hot air blower 24 in signal connection with the display controller 7. The heating assembly further comprises symmetrically arranged hot air ring pipes 14 each welded with the clamping support 16 away from one end of the through groove 6, and the two ends of the hot air pipe 21 are respectively communicated with two sides of the symmetrically arranged hot air ring pipes 14. The hot air ring pipes 14 are each slidably sleeved with a nozzle 33, and corresponding outer walls of the hot air ring pipes 14 are provided with hot air grooves communicated with the nozzles 33. The nozzles 33 on the same hot air ring pipe 14 are each inclined at the same radial angle, the nozzles 33 between different hot air ring pipes 14 correspond to each other, the side walls of the nozzles 33 are each hingedly connected with a pushing rod 18, the corresponding pushing rods 18 are coaxially opposite to each other, the pushing rods 18 are each provided with a pushing thread, the pushing threads on the corresponding pushing rods 18 are opposite to each other, and a pushing sleeve 34 is threadedly sleeved between the corresponding pushing rods 18, and the pushing sleeve 34 is provided with a pushing tooth groove on an outer periphery thereof.

[0064] The heating assembly further comprises a pushing tooth ring 26 slidably matched with the clamping support 16 at the end thereof, the pushing tooth ring 26 is provided with a driving tooth groove on an inner side thereof, the driving tooth groove and the pushing tooth groove are in engagement, the clamping support 16 is welded with a pushing motor at the end thereof, a pushing gear 27 is coaxially welded with an output shaft of the pushing motor, the pushing tooth ring 26 is provided with a driven tooth groove on an outer side thereof, and the driven tooth groove and the pushing gear 27 are in engagement. The pushing motor is in signal connection with the display controller 7.

[0065] The dehumidifying assembly is used for dehumidifying by using negative pressure molecular sieve and semiconductor condensation, and is used for preventing moisture by using positive pressure nitrogen and semiconductor condensation. The dehumidifying assembly comprises a ventilation pump 8 welded with an inner wall of the through groove 6, a dehumidifying molecular sieve 10 laid on an output end of the ventilation pump 8, an external environment and a nitrogen storage tank 11 communicated with an input end of the ventilation pump 8 through a reversing valve 9, and the ventilation pump 8 and the reversing valve 9 are in signal connection with the display controller 7. The top wall of the base 1 is welded with a plurality of semiconductor condensation pieces 3 distributed in a ring shape on an outer periphery of the through groove 6, and the top wall of the base 1 between the semiconductor condensation pieces 3 is provided with a dehumidifying groove 2 for leading out condensed water.

[0066] The specific implementation process is as follows: since existing bidirectional stretching flexible electronic device processing devices are mostly used for stretching displacement processing material by means of a pair of clamping rollers, high friction force materials on surfaces of the clamping rollers are easy to scratch the processing material, and a heating drying device in a processing process is easy to make upper and lower surfaces of the processing material not uniform in temperature and thus affect curing uniformity of an electronic substrate. The device is just used to solve these problems.

[0067] When the device is started, the display controller 7 first leads the initialization of the whole system, which detects and calibrates the initial state of the displacement assembly, the clamping assembly, the heating assembly and the dehumidification assembly, ensures that each part is in the preset starting position, such as the zero point of the displacement ring returning to the annular groove, the shrinkage of the stretch electric control cylinder 15, the no current input of the excitation coil 35, etc., and verifies whether the signal connection of each assembly with the display controller 7 is smooth, providing a stable control basis for subsequent processing.

[0068] Subsequently, as shown in Figure 1 and Figure 2 , the dehumidification assembly enters the working state first to create a dry environment for processing. The display controller 7 sends signals to the ventilation pump 8 and the reversing valve 9, and the reversing valve 9 is switched to the state of communication with the outside first. The ventilation pump 8 starts to extract the air in the through groove 6, and the moisture in the air is removed by the dehumidification molecular sieve 10 at the output end of the ventilation pump 8. At the same time, the semiconductor condensing sheet 3 on the top wall of the base 1 is electrified to refrigerate, so that the residual moisture in the air in the through groove 6 condenses into small water droplets, and these water droplets are discharged along the dehumidification groove 2 between the semiconductor condensing sheets 3. This process quickly reduces the humidity in the through groove 6 through the dual action of negative pressure molecular sieve adsorption and semiconductor condensation dehumidification. When the humidity decreases to the preset threshold, the reversing valve 9 is switched to the state of communication with the nitrogen gas storage tank 11, and the ventilation pump 8 injects nitrogen into the through groove 6 to form a positive pressure environment in the through groove 6. By using the inertness and dryness of nitrogen, the invasion of external moisture is effectively isolated, and a stable low-humidity environment is provided for the processing of flexible electronic devices, avoiding the influence of moisture on the performance of the devices.

[0069] After completing the environmental pretreatment, the device enters the material clamping stage. The display controller 7 controls the displacement assembly to adjust the clamping direction according to the size and stretching demand of the flexible electronic device to be processed. After receiving the signal, the displacement motor starts, and its output shaft drives the displacement gear 38 to rotate. The displacement gear 38 is engaged with the displacement tooth groove on the outer side wall of the first displacement ring 20 and the second displacement ring 22, thereby driving the first displacement ring 20 and the second displacement ring 22 to slide synchronously in the annular groove of the first annular support 19 and the second annular support 23. Since the "U-shaped" clamping support 16 of the clamping assembly is fixedly connected to the first displacement ring 20 and the second displacement ring 22 at both ends, the rotation of the displacement ring will drive the four clamping pieces distributed in a quadrilateral to rotate as a whole, and finally make the clamping pieces accurately align with the four corners of the material, preparing for the subsequent clamping.

[0070] Subsequently, as shown in Figure 3 , Figure 4 and Figure 5As shown, the display controller 7 sends a signal to the stretch electric cylinder 15, and the output shaft of the stretch electric cylinder 15 extends to push the clamping rod 4 to move towards the material. In this process, the support gears 28 at both ends of the clamping rod 4 roll along the support tooth grooves on the inner bottom wall of the clamping support 16, which not only provides guidance for the movement of the clamping rod 4, but also enhances the stability of the clamping rod 4 to avoid tilting during movement. When the clamping rod 4 moves to the edge of the material, the display controller 7 controls the air pump 12 to start, and the inflation pipe 13 inflates the driving air bag 29 in the clamping foot 5 through the electromagnetic valve. After the driving air bag 29 is inflated, it expands and bends, driving the clamping foot 5 formed by the multi-section clamping arm 30 to move towards the center of the clamping groove 32, so that the symmetrically distributed clamping feet 5 clamp the material from both sides. When the suction cup 31 on the clamping arm 30 contacts the surface of the material, the gas in the main cavity of the suction cup 31 is discharged through the peripheral cavity, the main cavity adsorbs the central area of the material, and the peripheral cavity assists in fixing the edge of the material. This synchronous adsorption structure of the center and the edge can not only ensure that the material is firmly clamped, but also adapt to the deformation characteristics of flexible electronic devices through the flexible contact of the suction cup 31 and the hinged structure of the multi-section clamping arm 30, avoiding damage to the material caused by excessive clamping force.

[0071] When bidirectional stretching of the material is required, the display controller 7 controls the output shaft of the stretch electric cylinder 15 to continuously extend or contract according to the stretching parameters, driving the clamping rod 4 to move away from or towards the center of the through groove 6, and then stretching the material through the clamping feet 5. At the same time, the display controller 7 passes current to the excitation coil 35 in the support gear 28, and the excitation coil 35 generates a magnetic field to instantaneously change the magnetic rheological fluid in the damping cavity from a liquid state to a semi-solid state with a certain shear yield strength. Because the outer damping ring 37 in the damping cavity and the inner damping ring 36 on the clamping rod 4 are interlaced with each other, the magnetic rheological fluid will tightly combine the inner damping ring 36 and the outer damping ring 37 after solidification, forming a strong damping force to prevent the support gear 28 from rolling in the support tooth groove, thereby locking the position of the clamping rod 4 and achieving precise positioning during stretching. This magnetic rheological fluid damping locking method responds quickly, can adjust the excitation current in real time according to the change of the stretching force, flexibly changes the damping strength, ensures the stability and controllability of the stretching process, avoids irregular deformation of the material due to fluctuation of the stretching force, and combines Figure 6 and Figure 7 as shown.

[0072] During the stretching process, the heating assembly is activated to dry the material. The display controller 7 controls the operation of the hot air blower 24. The external air is heated after being dehumidified by the filter molecular sieve 25 at the input end of the hot air blower 24, and the hot air flow is delivered to the symmetrically arranged hot air ring pipe 14 through the “Y”-shaped hot air pipe 21. The nozzles 33 on the hot air ring pipe 14 are in communication with the hot air groove, and the hot air flow is sprayed out. Since the nozzles 33 on the same hot air ring pipe 14 are inclined at the same radial angle, and the nozzles 33 of different hot air ring pipes 14 correspond to each other, two layers of intersecting hot air flows are preliminarily formed. In order to further improve the heating uniformity, the display controller 7 activates the pushing motor, and the output shaft of the pushing motor drives the pushing gear 27 to rotate. The pushing gear 27 is engaged with the driven tooth grooves on the outer side of the pushing tooth ring 26, so that the pushing tooth ring 26 slides at the end of the clamping support 16. The driving tooth grooves on the inner side of the pushing tooth ring 26 are engaged with the pushing tooth grooves on the outer periphery of the pushing sleeve 34, so as to drive the pushing sleeve 34 to rotate. Since the screw directions of the pushing rods 18 at both ends of the pushing sleeve 34 are opposite, the pushing sleeve 34 will drive the pushing rods 18 at both ends to move synchronously close to or away from each other when the pushing sleeve 34 rotates, thereby driving the nozzles 33 to slide on the hot air ring pipe 14. The movement of the nozzles 33 in combination with the inclination angle can make the sprayed hot air flow form a dynamic vortex. The interaction of the two layers of vortex hot air can uniformly cover each area of the material, avoid the local overheating problem caused by the traditional fixed heating method, and ensure that the flexible electronic device is evenly heated during the stretching process, thereby improving the processing quality.

[0073] In combination Figure 8 As shown in the figure, during the entire processing process, the dehumidification assembly is always in working condition. The display controller 7 adjusts the operating parameters of the ventilation pump 8 and the semiconductor condenser sheet 3 in real time according to the humidity in the through groove 6. When the humidity is high, the reversing valve 9 is switched to the air extraction mode, the ventilation pump 8 continuously extracts the air in the through groove 6 and dehumidifies it through the dehumidification molecular sieve 10, and the semiconductor condenser sheet 3 synchronously cools and strengthens the condensation dehumidification; when the humidity is up to standard, the reversing valve 9 is switched to the nitrogen filling mode, and the positive pressure nitrogen environment in the through groove 6 is maintained to ensure that the material is in a dry state during the entire processing.

[0074] After the processing is completed, the display controller 7 controls each component to reset in turn. Finally, the flexible electronic device processed by bidirectional stretching, uniform drying and stable clamping is taken out. The entire process is precisely coordinated by the display controller 7, realizing seamless cooperation of each component, ensuring processing accuracy, adapting to the material characteristics of the flexible electronic device, and significantly improving processing efficiency and product quality.

[0075] Example 2

[0076] The difference between the above embodiment and the present embodiment is that the display controller 7 is provided with a monitoring module, a processing module and a control module;

[0077] The monitoring module is used to collect the strain and physicochemical property change data of the processed material, and includes a temperature sensor, a humidity sensor, a capacitive sensor and a fiber grating sensor. The temperature sensor is fixedly connected to the inner top wall of the processing cavity, the humidity sensor is fixedly connected to the through groove 6, and the capacitive sensor and the fiber grating sensor are both fixedly connected to the end of the clamping foot 5.

[0078] The processing module is used to judge whether the monitored strain and physicochemical property change data exceed the preset threshold value according to the preset type of the processed material.

[0079] The control module is used to control the corresponding components of the device to control the monitoring data within the threshold value range according to the judgment result of the processing module.

[0080] The specific implementation process is as follows: during the entire processing of the bidirectional stretching flexible electronic device, the monitoring module, the processing module and the control module of the display controller 7 always work cooperatively to ensure the accuracy and stability of the processing process through real-time data collection, intelligent judgment and dynamic regulation.

[0081] After the processing is started, the monitoring module enters the working state first, and each sensor completes self-checking and starts continuous data collection. The temperature sensor on the inner top wall of the processing cavity monitors the temperature change of the processing environment in real time, providing basic data for the regulation of the heating assembly; the humidity sensor in the through groove 6 cooperates with the dehumidification assembly to continuously track the humidity value in the through groove 6, ensuring the stability of the dry environment; the capacitive sensor and the fiber grating sensor at the end of the clamping foot 5 are close to the surface of the material, wherein the capacitive sensor reflects the change of the physicochemical property (such as the dielectric constant) of the material by detecting the capacitance change caused by the deformation of the material, and the fiber grating sensor accurately measures the strain degree of the material by using the wavelength shift of the grating reflected light, both of which form a real-time monitoring network for the processing state of the material, and the data is continuously transmitted to the processing module of the display controller 7 through the signal line.

[0082] After receiving the monitoring data, the processing module will call the corresponding threshold parameter library according to the preset type of the processed material (such as polymer-based flexible circuit, metal nanowire flexible electrode, etc.). For example, for polymer-based material, the preset temperature threshold value may be 60-80℃, the humidity threshold value is below 30% RH, and the maximum strain threshold value is 5%. The processing module compares the real-time collected temperature, humidity, capacitance and strain data with these threshold values. If a certain data approaches the upper limit of the threshold value, the processing module will issue a warning signal; if it exceeds the threshold value, an adjustment instruction will be generated immediately to ensure that the processing process is always within the range that the material can withstand.

[0083] The control module then accurately controls the corresponding components of the device according to the judgment result of the processing module. When the temperature sensor detects that the temperature in the processing cavity exceeds the preset threshold, the control module will reduce the power of the hot air blower 24 or control the pushing motor to adjust the position and angle of the nozzle 33, reduce the local heat flux density, and make the temperature fall back to the safe range; if the humidity sensor feedbacks that the humidity in the through slot 6 is too high, the control module will increase the air pumping power of the ventilation pump 8, prolong the adsorption time of the dehumidification molecular sieve 10, or enhance the refrigeration intensity of the semiconductor condenser sheet 3, and at the same time, through the reversing valve 9, increase the filling amount of nitrogen, quickly reduce the humidity to below the threshold value.

[0084] In the clamping and stretching stage of the material, the control of the control module is more critical. When the fiber grating sensor detects that the material strain is close to the maximum threshold, the processing module will transmit the signal to the control module, and the control module will immediately reduce the output intensity of the stretching electric control cylinder 15, and at the same time adjust the current intensity of the excitation coil 35, slow down the moving speed of the clamping rod 4 by changing the damping force of the magnetorheological fluid, to avoid the material from being broken due to excessive stretching; if the capacitance sensor monitors that the dielectric constant of the material changes abnormally (which may indicate local overheating or chemical property change), the control module will cooperate with the heating component to reduce the hot air temperature, and through the displacement component, fine-tune the clamping direction, so that the material is more evenly stressed, and the abnormal fluctuation of the physical and chemical properties is reduced.

[0085] In addition, during the whole processing, the data of the monitoring module will be displayed in real time on the interface of the display controller 7, and the processing module will analyze the trend of the data and predict the risk of exceeding the threshold value. For example, if the humidity data shows a slow upward trend, the processing module will issue an early warning, and the control module will start the fine-tuning program of the dehumidification component in advance to suppress the increase of humidity by increasing the nitrogen injection amount, realizing proactive management instead of passive waiting for data exceeding the threshold value.

[0086] The closed-loop system enables the device to dynamically adjust the processing parameters according to the real-time state of the material, not only solving the problem of insufficient precision caused by relying on manual experience in traditional processing, but also ensuring the stability of flexible electronic devices in stretching, drying and other links through the cooperative monitoring and intelligent control of multiple sensors, significantly reducing the material loss caused by environmental fluctuations or uneven stress, and ultimately improving the consistency and performance reliability of the finished product.

[0087] Specific experimental process: I. Experimental goal

[0088] 1. Verify whether the flexible clamping system can avoid damage to the material surface

[0089] 2. Test the multi-directional stretching precision

[0090] 3. Analyze the uniformity of double-layer eddy current heating

[0091] 4. Evaluate the double-mode dehumidification effect

[0092] II. Experimental materials and equipment

[0093] TPU-based flexible circuit board (thickness 0.1 mm), traditional roller-type bidirectional stretching machine, this patent device, laser displacement sensor, infrared thermal imager, high-precision hygrometer, electron microscope.

[0094] III. Experimental process

[0095] Experiment 1: Damage prevention verification of flexible clamping system

[0096] 1. Sample preparation: cut 10 pieces of 100x100mm TPU-based flexible circuit board (thickness 0.1mm), polish the surface to an initial roughness Ra=0.05μm.

[0097] 2. Control group test: use traditional roller-type stretching machine, set rubber roller pressure to 0.8MPa, apply 50N stretching force after clamping the material edge, maintain for 10 seconds and then release. Scan the clamping area with electron microscope (500x), mark the scratches and calculate the number of defects per unit area.

[0098] 3. Experimental group test: after starting the device, the air pump inflates the driving air bag (0.15MPa), and the suction cup generates-80kPa negative pressure to adsorb the material. Maintain the same 50N stretching force for 10 seconds, and record the air bag pressure fluctuation at the same time. Observe the adsorption area morphology under the microscope and compare the scratch distribution.

[0099] Experiment 2: Multidirectional stretching precision verification

[0100] 1. Calibration setting: print 5x5mm grid mark points on the surface of the TPU substrate, and align the mark points with the laser displacement sensor (accuracy 0.1μm).

[0101] 2. Stretching program: control the displacement motor to rotate and perform 0° (X-axis), 45°, 90° (Y-axis), and 135° four groups of stretching paths respectively. Each group of path performs 10 repeated experiments, with a target displacement of 10mm and a stretching speed of 2mm / s. The magnetic rheological fluid damper excitation current is adjusted in real time to 0.5-1.2A (corresponding to stretching force 50N).

[0102] 3. Data acquisition: laser sensor records the actual displacement and target displacement deviation, and tension sensor synchronously monitors the stretching force fluctuation.

[0103] Experiment 3: Double-layer eddy current heating uniformity verification

[0104] 1. Temperature field construction: set the air heater to 80℃, adjust the nozzle inclination angle to 15°, and drive the nozzle to form a symmetrical eddy current with the push motor. Traditional equipment uses single-layer hot air direct blowing (air speed 5m / s).

[0105] 2. Thermal imaging monitoring: Infrared thermal imager (FLIR A65, accuracy ±0.5°C) collects the temperature of the upper and lower surfaces of the TPU substrate every minute after heating starts. Select the center and four corners of the substrate for a total of 5 temperature measurement points, and record for 10 minutes.

[0106] 3. Curing evaluation: After heating, use a conductive tester to measure the uniformity of the substrate surface resistance (9-point test method).

[0107] Experiment four: verification of the efficiency of the dehumidification system

[0108] 1. High humidity environment simulation: Set the initial conditions of humidity 70% RH and temperature 25°C in the environmental chamber.

[0109] 2. Dual-mode operation: Stage 1 (0-5 min): Ventilation pump at a flow rate of 20 L / min, molecular sieve adsorption + semiconductor condenser sheet (refrigeration temperature 5°C) dehumidification. Stage 2 (5-10 min): Switch the valve to the nitrogen storage tank, inject 99.99% nitrogen to maintain the positive pressure (+50 Pa) of the through-slot.

[0110] 3. Humidity monitoring: High-precision humidity sensor (±1% RH) records the humidity change in the through-slot every 30 seconds, and compares the blank test of the dehumidification assembly.

[0111] Four, experimental data

[0112] As shown in the following table:

[0113] Table 1. Comparison of clamping damage

[0114]

[0115] Table 2. Multidirectional stretching precision data

[0116]

[0117] Table 3. Heating uniformity

[0118]

[0119] Table 4. Dehumidification efficiency

[0120]

[0121] Five, experimental conclusion

[0122] The flexible clamping structure (air bag + suction cup) reduces the surface scratch density to 2.24% of the traditional equipment, and the roughness is reduced by 85.5%. The displacement error of the four groups of stretching paths is ≤0.05mm, and the tension fluctuation is ≤±0.51N. The double-layer eddy current hot air compresses the maximum temperature difference of the upper and lower surfaces to 1.2℃ (the traditional equipment is 7.2℃), and the substrate resistance uniformity is improved by 92%, and the curing consistency far exceeds the expectation. The dual-mode dehumidification system reduces the humidity from 70%RH to 25.1%RH within 5 minutes, the humidity fluctuation is ≤0.5%RH in the nitrogen overpressure maintenance stage, and the humidity control stability reaches the industry leading level.

[0123] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0124] The above is only an embodiment of the present application, and the common knowledge of the specific structure and characteristics in the scheme is not described in detail here. The person skilled in the art knows all the common technical knowledge in the field of the application before the application date or the priority date, can know all the prior art in this field, and has the ability to apply conventional experimental means before that date. The person skilled in the art can improve and implement the present scheme under the guidance of this application, and some typical known structures or known methods should not be an obstacle for the person skilled in the art to implement the present application. It should be noted that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should be considered as the protection scope of the present application, and these will not affect the effect and practicality of the patent. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A processing device of bidirectional stretch flexible electronic device, comprising a base (1) with a vertical through slot (6) in the center, characterized in that: The base (1) is fixedly connected with a displacement assembly, the displacement assembly is fixedly connected with a clamping assembly around, the displacement assembly is fixedly connected with a heating assembly, a through slot (6) is provided with a dehumidification assembly, the base (1) side wall is fixedly connected with a display controller (7), the displacement assembly, clamping assembly, heating assembly and dehumidification assembly are all signal connected with the display controller (7); The displacement assembly is used for rotating to adjust the clamping and stretching direction of the clamping assembly; The clamping assembly is used for clamping and magnetorheological fluid damping stretching locking fixing processing materials through deformation adsorption; The heating assembly is used for forming double-layer eddy current hot air synchronous uniform drying processing materials; The dehumidification assembly is used for using negative pressure molecular sieve and semiconductor condensation dehumidification, using positive pressure nitrogen filling and semiconductor condensation moisture-proof.

2. The apparatus according to claim 1, wherein: The displacement assembly includes a processing cavity formed in the base (1), the processing cavity is communicated with the through slot (6), the top wall and the bottom wall of the processing cavity are fixedly connected with a first annular support (19) and a second annular support (23) respectively, the first annular support (19) and the second annular support (23) are both sleeved with the through slot (6), the first annular support (19) and the second annular support (23) are both symmetrically provided with annular grooves, the annular groove of the first annular support (19) is slidably connected with a first displacement ring (20), the annular groove of the second annular support (23) is slidably connected with a second displacement ring (22), the outer side wall of the first displacement ring (20) and the second displacement ring (22) is both provided with a displacement gear slot, the outer side wall of the first annular support (19) and the second annular support (23) is fixedly connected with a displacement motor, the output shaft of the displacement motor is coaxially fixedly connected with a displacement gear (38), the displacement gear (38) is engaged with the corresponding displacement gear slot, the displacement motor is signal connected with the display controller (7).

3. The apparatus according to claim 1, wherein: The clamping assembly includes four clamping pieces distributed in quadrilateral, the clamping piece includes a symmetrically arranged "U-shaped" clamping support (16), one end of the clamping support (16) is fixedly connected with the outer side wall of the first displacement ring (20), the other end of the clamping support (16) is fixedly connected with the outer side wall of the second displacement ring (22), one end of the clamping support (16) away from the through slot (6) is fixedly connected with a stretching electric control cylinder (15), the output shafts of the stretching electric control cylinders (15) on the same side clamping support (16) are fixedly connected with a clamping rod (4), the stretching electric control cylinder (15) is signal connected with the display controller (7).

4. The apparatus according to claim 3, wherein: The two ends of the clamping rod (4) close to the stretching electric control cylinder (15) are rotatably sleeved with a supporting gear (28), the inner side bottom wall of the clamping support (16) close to the clamping rod (4) is provided with a supporting gear slot corresponding to the supporting gear (28), the supporting gear (28) is provided with an annular damping cavity and a coil groove, the inner wall of the damping cavity is fixedly connected with a plurality of outer damping rings (37), the outer periphery of the clamping rod (4) in the damping cavity is fixedly connected with a plurality of inner damping rings (36), the inner damping ring (36) and the corresponding outer damping ring (37) are staggered, the damping cavity is filled with magnetorheological fluid, the coil groove is wound with an excitation coil (35), the excitation coil (35) is signal connected with the display controller (7).

5. The apparatus according to claim 4, wherein: The clamping rod (4) is provided with a clamping groove (32) in the middle part, a plurality of clamping feet (5) are symmetrically hinged on the clamping rod (4) and distributed on both sides of the clamping groove (32), the clamping feet (5) on the same clamping rod (4) are parallel to the through groove (6), the clamping feet (5) are composed of a plurality of clamping arms (30), the clamping arms (30) are hinged with each other, a plurality of driving air bags (29) are fixedly connected in the clamping feet (5), the driving air bags (29) are used for bending and driving the corresponding clamping feet (5) to clamp the processed materials after being inflated, the clamping arms (30) are fixedly connected with suction cups (31) on the side close to the processed materials, the bottom wall of the suction cup (31) is provided with a main cavity and a plurality of circumferential cavities, the circumferential cavities on the same suction cup (31) are annularly distributed outside the main cavity, and the main cavity and the circumferential cavities are communicated with air passages; The clamping rod (4) is fixedly sleeved with an inflation pipe (13), the inflation pipe (13) and the corresponding driving air bag (29) are respectively communicated through an electromagnetic valve, the two ends of the inflation pipe (13) pass through the two ends of the clamping rod (4) and are both communicated with an air pump (12), the air pump (12) is fixedly connected with the inner wall of the processing cavity, and the electromagnetic valve and the air pump (12) are signal connected with the display controller (7).

6. The apparatus of claim 1, wherein: The heating assembly comprises a hot air blower (24), the hot air blower (24) is fixedly connected with the base (1), the output end of the hot air blower (24) is communicated with a "Y"-shaped hot air pipe (21), the input end of the hot air blower (24) is laid with a filtering molecular sieve (25), the filtering molecular sieve (25) is used for removing the moisture absorbed by the hot air blower (24), and the hot air blower (24) is signal connected with the display controller (7).

7. The apparatus of claim 6, wherein: The heating assembly further comprises symmetrically arranged hot air ring pipes (14), the hot air ring pipes (14) are fixedly connected with the clamping supports (16) away from the through groove (6), the two bifurcated ends of the hot air pipe (21) are respectively communicated with the two sides of the symmetrically arranged hot air ring pipes (14), the hot air ring pipes (14) are slidably sleeved with nozzles (33), the corresponding outer walls of the hot air ring pipes (14) and the nozzles (33) are provided with hot air grooves, the hot air grooves are communicated with the nozzles (33), the nozzles (33) on the same hot air ring pipe (14) are inclined at the same radial angle, the nozzles (33) between different hot air ring pipes (14) correspond to each other, the side walls of the nozzles (33) are hinged with push rods (18), the corresponding push rods (18) are coaxially opposite, the push rods (18) are provided with push threads, the push threads on the corresponding push rods (18) are opposite, a push sleeve (34) is threadedly sleeved between the corresponding push rods (18), and the outer periphery of the push sleeve (34) is provided with a push gear groove; The heating assembly further comprises a push gear ring (26), the push gear ring (26) is slidably matched with the ends of the clamping supports (16), the inner side of the push gear ring (26) is provided with a driving gear groove, the driving gear groove and the push gear groove are engaged, the ends of the clamping supports (16) are fixedly connected with push motors, the output shafts of the push motors are coaxially fixedly connected with push gears (27), the outer side of the push gear ring (26) is provided with a driven gear groove, the driven gear groove and the push gear (27) are engaged, and the push motors are signal connected with the display controller (7).

8. The apparatus according to claim 1, wherein: The dehumidification assembly comprises a ventilation pump (8) fixedly connected with the inner wall of the through groove (6), the output end of the ventilation pump (8) is paved with dehumidification molecular sieve (10), the input end of the ventilation pump (8) is communicated with a nitrogen storage tank (11) through a reversing valve (9), the reversing valve (9) is also communicated with the outside world, and the ventilation pump (8) and the reversing valve (9) are both signal connected with a display controller (7).

9. The apparatus according to claim 8, wherein: The top wall of the base (1) is fixedly connected with a plurality of semiconductor condensing pieces (3) distributed in a ring shape outside the periphery of the through groove (6), the top wall of the base (1) between the semiconductor condensing pieces (3) is provided with a dehumidification groove (2), and the dehumidification groove (2) is used for guiding out condensed water.

10. The apparatus according to claim 1, wherein: The display controller (7) is provided with a monitoring module, a processing module and a control module; The monitoring module is used for collecting strain and physicochemical property change data of the processed material, and comprises a temperature sensor, a humidity sensor, a capacitance sensor and a fiber grating sensor, the temperature sensor is fixedly connected with the inner top wall of the processing cavity, the humidity sensor is fixedly connected with the through groove (6), and the capacitance sensor and the fiber grating sensor are both fixedly connected with the end of the clamping foot (5); The processing module is used for judging whether the monitored strain and physicochemical property change data exceed a preset threshold value according to a preset type of the processed material; The control module is used for controlling the corresponding components of the above device to control the monitoring data within the threshold value range according to the judgment result of the processing module.

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