A graphene film automatic drying device

Abstract

The present invention relates to the technical field of graphene preparation, and specifically to an automatic graphene film drying device, comprising a base, a drying box and an equipment plate located above the drying box are fixedly installed on the upper end surface of the base through a support rod, and a transportation mechanism for transporting the graphene film is provided on the drying box. An integrated automatic operation model of guidance, transportation and drying is used to continuously complete the suspended drying of the graphene film, so that the drying operation is connected with the subsequent processing, making the preparation process more continuous, thereby improving the overall production efficiency of graphene film preparation, and at the same time, continuous and efficient film transportation is achieved through optimized transportation and guidance, and the closed drying box and wave-shaped drying method are used to improve the thermal energy utilization rate and drying uniformity, effectively protect the film quality, and ensure the high-quality drying effect of the graphene film while saving energy.

Description

Technical Field

[0001] The invention relates to the technical field of graphene preparation, and in particular to an automatic graphene film drying device. Background Art

[0002] Graphene films made from multilayer graphene as raw materials have the advantages of high conductivity, high transparency, high strength, high thermal conductivity and high flexibility. They are widely used in electronic devices, composite materials, energy storage devices, biomedicine, nanotechnology and other technical fields. In the process of preparing and processing graphene films, after cleaning to remove pollutants or residual chemicals on the surface of the graphene film, the graphene film needs to be dried to avoid the residual moisture or solvent on the surface of the graphene film affecting its performance.

[0003] At present, there are the following problems when drying graphene films: 1. The graphene film is placed in a dryer for drying, and after the drying is completed, the dried graphene film needs to be taken out before the next group of graphene films can be dried. In the above operation, only one group of graphene films can be processed each time during drying, resulting in low overall drying efficiency. Moreover, each time the dryer is opened to take out the film, heat loss inside the dryer will occur, thereby increasing energy consumption. At the same time, after the drying operation, the graphene film needs to be taken and placed in the subsequent processing area, resulting in the graphene film preparation process being discontinuous, thereby affecting the overall production efficiency; 2. In the process of drying the graphene film, the film is usually stacked and laid flat in a drying box, and the stacked placement will result in uneven heat and air circulation between the upper and lower graphene films, resulting in inconsistent drying effects, affecting the quality of the film, and in the drying process, the stacked graphene films may adhere to each other due to the accumulation of heat and moisture, thereby damaging the structure and performance of the film. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an automatic drying device for graphene film, which is achieved by the following specific technical means: an automatic drying device for graphene film, comprising a base, a drying box and an equipment plate located above the drying box are fixedly installed on the upper end surface of the base through a support rod, and a transportation mechanism for transporting the graphene film is provided on the drying box; the transportation mechanism includes a scraping part arranged on the drying box and used to scrape large particles of water droplets attached to the surface of the graphene film, and the drying box is provided with a transportation part.

[0005] The drying box is provided with a guiding mechanism which cooperates with the transport mechanism and is used to guide the graphene film; the guiding mechanism comprises a guiding portion arranged on the drying box, a clamping portion arranged on the guiding portion for clamping the initial end of the graphene film, and a closing portion arranged on the guiding portion for closing the drying box.

[0006] The drying box and the equipment plate are jointly provided with a drying mechanism for continuously drying the graphene film; the drying mechanism includes a driving part arranged on the equipment plate, the driving part is provided with a bending part which cooperates with it and is used to bend the graphene film into a wave shape, the bending part is provided with a heating part which is used to heat the graphene film at a fixed distance, and the heating part is provided with an air supply part which cooperates with it and is used to dry the graphene film by combining airflow drying with thermal drying.

[0007] As a preferred technical solution of the present invention, the scraper part includes a feed inclined plate, a first electric push rod and a scraper plate. The front and rear end surfaces of the drying box are both provided with material passing holes. The front end surface of the drying box is fixedly installed with a feed inclined plate located below the material passing hole on the front side. The front end surface of the drying box is fixedly installed with a first electric push rod. The telescopic end of the first electric push rod is fixedly installed with a scraper plate parallel to the inclined surface of the feed inclined plate. A plurality of scraper rubber strips are distributed in an array manner on one side wall of the scraper plate close to the feed inclined plate.

[0008] As a preferred technical solution of the present invention, the transport part includes a transport roller, a first motor, a second electric push rod, an extrusion frame and an extrusion roller. The rear end face of the drying box is rotatably installed with a transport roller located below the material passing hole on the rear side through a bearing seat. The rear end face of the drying box is fixedly installed with a first motor whose output end is fixedly connected to the transport roller. The rear end face of the drying box is fixedly installed with a second electric push rod. The telescopic end of the second electric push rod is fixedly installed with an extrusion frame. An extrusion roller matching the transport roller is installed in the extrusion frame through a bearing.

[0009] As a preferred technical solution of the present invention, the guiding part includes a limiting guide rail, a screw rod and a second motor. The limiting guide rails are fixedly installed through the centers of the left and right end surfaces of the drying box. The right end surface of the drying box is rotatably installed with a screw rod located below the corresponding limiting guide rail through a bearing seat. A second motor with an output end fixedly connected to the screw rod is fixedly installed on the drying box.

[0010] As a preferred technical solution of the present invention, the clamping part includes a clamping slider, a connecting plate, a third electric push rod and a clamping plate. The clamping slider is slidably installed in the limiting guide rail, the clamping slider on the right side is threadedly connected to the screw rod, and the connecting plate located in the drying box is commonly fixedly installed on the side where the clamping sliders are close to each other. The third electric push rod is fixedly installed on the upper end surface of the connecting plate through a support plate, and the telescopic end of the third electric push rod is fixedly installed with a clamping plate located directly above the connecting plate.

[0011] As a preferred technical solution of the present invention, the closing portion includes a support block, a spring telescopic rod and a trapezoidal baffle. The left and right end surfaces of the drying box are fixedly installed with support blocks located above the corresponding limit guide rails and symmetrical front and back. The lower end of the support block is fixedly installed with a spring telescopic rod. The lower ends of the front and back symmetrical spring telescopic rods are jointly fixedly installed with a trapezoidal baffle located on the side of the corresponding limit guide rail away from the drying box.

[0012] As a preferred technical solution of the present invention, the driving part includes a bidirectional screw, a connecting block, a third motor and a supporting platform. A bidirectional screw symmetrical about the drying box is installed between the equipment plate and the base through a bearing. The lower end of the bidirectional screw is connected by a belt drive. A third motor whose output end is fixedly connected to one of the bidirectional screws is fixedly installed on the base. The bidirectional screws symmetrical about the left and right are commonly threadedly connected with connecting blocks symmetrical about the drying box. Support platforms are fixedly installed on the sides of the upper and lower symmetrical connecting blocks close to each other, and the upper and lower support platforms are staggered front and back.

[0013] As an optimal technical solution of the present invention, the bending portion includes a first sliding bar, a second sliding bar, a first shaft rod, a second shaft rod and a bending roller. The lower end surface of the support platform located on the upper side is fixedly installed with a first sliding bar that is symmetrical and slides through the upper end surface of the drying box. The symmetrical first sliding bars are a group, and the lower end surface of the support platform is evenly distributed with several groups of first sliding bars in an array from front to back. The upper end surface of the support platform located on the lower side is fixedly installed with a second sliding bar that is symmetrical and slides through the lower end surface of the drying box. The symmetrical second sliding bars are a group, and the upper end surface of the support platform is evenly distributed with several groups of second sliding bars in an array from front to back. The lower ends of the symmetrical first sliding bars are commonly fixedly installed with the first shaft rod, and the upper ends of the symmetrical second sliding bars are commonly fixedly installed with the second shaft rod, the first shaft rod and the second shaft rod are staggered, and bending rollers are provided on the first shaft rod and the second shaft rod through bearing sleeves.

[0014] As a preferred technical solution of the present invention, the heating portion includes a first L-shaped support rod, a second L-shaped support rod, a heating plate, a limit rod and an extrusion block, the second shaft rod is rotatably installed with a first L-shaped support rod that is symmetrical with respect to the corresponding bending roller through a torsion spring, the first shaft rod is rotatably installed with a second L-shaped support rod that is symmetrical with respect to the corresponding bending roller through a torsion spring, the second L-shaped support rod corresponds to the horizontal section of the first L-shaped support rod, the heating plate is fixedly installed between the left-right symmetrical second L-shaped support rods and between the left-right symmetrical first L-shaped support rods, the second shaft rod is fixedly installed with a limit rod for limiting the rotation of the first L-shaped support rod, the first shaft rod is fixedly installed with a limit rod for limiting the rotation of the second L-shaped support rod, the second shaft rod and the first shaft rod are fixedly installed with left-right symmetrical extrusion blocks, the extrusion blocks are composed of a fixing ring and an extrusion column, the extrusion column on the second shaft rod squeezes the second L-shaped support rod upward away from the corresponding end of the first shaft rod, and the extrusion column on the first shaft rod squeezes the first L-shaped support rod downward away from the corresponding end of the second shaft rod.

[0015] As a preferred technical solution of the present invention, the air supply part includes a ventilation plate, a connecting pipe and air holes. The heating plates on the upper and lower sides at the front are provided with a plurality of air holes distributed in an array manner. The ventilation plates located directly above the corresponding heating plates are fixedly installed on the left-right symmetrical second L-shaped support rod located at the front. The ventilation plates located directly below the corresponding heating plates are fixedly installed on the left-right symmetrical first L-shaped support rod located at the front. Connecting pipes are fixedly installed on the sides of the upper and lower ventilation plates away from each other.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The graphene film automatic drying device, through the coordinated use of the transport mechanism, the guide mechanism and the drying mechanism, adopts an integrated automated operation model of guidance, transportation and drying to continuously complete the suspended drying of the graphene film, so that the drying operation is connected with the subsequent processing, and the process of preparing the graphene film is more continuous, thereby improving the overall production efficiency of the graphene film preparation, and at the same time, through optimized transportation and guidance, continuous and efficient film transportation is achieved, and through the closed drying box and the wave-shaped drying method, the thermal energy utilization rate and drying uniformity are improved, the film quality is effectively protected and the product appearance is improved, thereby saving energy while ensuring the high-quality drying effect of the graphene film.

[0017] 2. The graphene film automatic drying device can automatically guide and transport the graphene film forward through the coordinated use of the transport mechanism and the guide mechanism, and can continuously feed the graphene film into the drying box to improve production efficiency. The large particles of water droplets attached to the surface of the graphene film can be scraped off before being transported to the drying box to prevent local overheating or steam explosion of the water droplets during the drying process, thereby protecting the graphene film from damage. At the same time, removing the large particles of water droplets on the surface can avoid water stains or spots on the surface of the film after drying, thereby improving the appearance quality and overall performance of the product.

[0018] 3. The graphene film automatic drying device can close both sides of the drying box after guiding the graphene film to the corresponding position through the setting of the guide mechanism, thereby reducing the heat loss inside the drying box and making the temperature inside the drying box more stable, thereby saving energy consumption and speeding up the drying process and improving the drying efficiency. At the same time, the stable temperature and uniform heat distribution are helpful to improve the drying quality of the graphene film and reduce the film damage caused by temperature fluctuations.

[0019] 4. The graphene film automatic drying device, through the drying mechanism, bends the graphene film into a wave shape in the drying box and then dries it, so as to increase the contact area between the graphene film and the heat source, and help to evenly distribute the hot air and heat, thereby improving the heat transfer efficiency and making the drying process faster. At the same time, the distance between the heating plate and the graphene film remains unchanged during the drying process, ensuring that the heat transfer is stable and uniform during the entire drying process, and the graphene film is dried by combining airflow drying with thermal drying to more effectively remove moisture, thereby ensuring the quality of the graphene film. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention when it is working.

[0021] Figure 2 It is a partial three-dimensional structural schematic diagram of the transport mechanism and the guide mechanism of the present invention.

[0022] Figure 3 It is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the drying mechanism of the present invention when working.

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the drying mechanism of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the drying mechanism of the present invention in the initial state.

[0026] Figure 7 It is a partial three-dimensional structural schematic diagram of the drying mechanism of the present invention.

[0027] In the figure: 1, base; 2, drying box; 3, equipment plate; 4, transportation mechanism; 41, scraper part; 411, feed inclined plate; 412, first electric push rod; 413, scraper plate; 42, transportation part; 421, transportation roller; 422, first motor; 423, second electric push rod; 424, extrusion frame; 425, extrusion roller; 5, guide mechanism; 51, guide part; 511, limit guide rail; 512, lead screw; 513, second motor; 52, clamping part; 521, clamping slider; 522, connecting plate; 523, third electric push rod; 524, clamping plate; 53, closing part; 531, Support block; 532, spring telescopic rod; 533, trapezoidal baffle; 6, drying mechanism; 61, driving unit; 611, bidirectional screw; 612, connecting block; 613, third motor; 614, supporting platform; 62, bending unit; 621, first slide bar; 622, second slide bar; 623, first shaft rod; 624, second shaft rod; 625, bending roller; 63, heating unit; 631, first L-shaped support rod; 632, second L-shaped support rod; 633, heating plate; 634, limiting rod; 635, extrusion block; 64, air supply unit; 641, ventilation plate; 642, connecting pipe; 643, air hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1 and Figure 2 A graphene film automatic drying device comprises a base 1, a drying box 2 and an equipment plate 3 located above the drying box 2 are fixedly mounted on the upper end surface of the base 1 through a support rod, and a transportation mechanism 4 for transporting the graphene film is arranged on the drying box 2; the transportation mechanism 4 comprises a scraping part 41 arranged on the drying box 2 and used for scraping large particles of water droplets attached to the surface of the graphene film, and a transportation part 42 is arranged on the drying box 2.

[0030] See also Figure 1The drying box 2 is provided with a guiding mechanism 5 which cooperates with the transport mechanism 4 and is used to guide the graphene film; the guiding mechanism 5 includes a guiding portion 51 arranged on the drying box 2, and the guiding portion 51 is provided with a clamping portion 52 for clamping the initial end of the graphene film, and the guiding portion 51 is also provided with a closing portion 53 for closing the drying box 2.

[0031] See also Figure 1 and Figure 4 The drying box 2 and the equipment plate 3 are jointly provided with a drying mechanism 6 for continuously drying the graphene film; the drying mechanism 6 includes a driving portion 61 arranged on the equipment plate 3, the driving portion 61 is provided with a bending portion 62 which cooperates with it and is used to bend the graphene film into a wave shape, the bending portion 62 is provided with a heating portion 63 which is used to heat the graphene film at a fixed distance, and the heating portion 63 is provided with an air supply portion 64 which cooperates with it and is used to dry the graphene film in a manner combining airflow drying and thermal drying.

[0032] See also Figure 1 and Figure 3 The scraper part 41 includes a feed inclined plate 411, a first electric push rod 412 and a scraper plate 413. The front and rear end surfaces of the drying box 2 are penetrated with material passing holes. The front end surface of the drying box 2 is fixedly installed with a feed inclined plate 411 located below the front material passing hole. The front end surface of the drying box 2 is fixedly installed with a first electric push rod 412. The telescopic end of the first electric push rod 412 is fixedly installed with a scraper plate 413 parallel to the inclined surface of the feed inclined plate 411. The scraper plate 413 is close to the side wall of the feed inclined plate 411 and is distributed with a plurality of scraper rubber strips in an array manner.

[0033] See also Figure 1 and Figure 2 The guide part 51 includes a limit guide rail 511, a screw rod 512 and a second motor 513. The limit guide rails 511 are fixedly installed through the centers of the left and right end surfaces of the drying box 2. The right end surface of the drying box 2 is rotatably installed with a screw rod 512 located below the corresponding limit guide rail 511 through a bearing seat. The drying box 2 is fixedly installed with a second motor 513 whose output end is fixedly connected to the screw rod 512.

[0034] See also Figure 1 , Figure 2 , Figure 3 and Figure 4The clamping portion 52 includes a clamping slider 521, a connecting plate 522, a third electric push rod 523 and a clamping plate 524. The clamping slider 521 is slidably installed in the limiting guide rail 511. The clamping slider 521 on the right side is threadedly connected to the screw rod 512. The connecting plate 522 located in the drying box 2 is fixedly installed on the side where the clamping sliders 521 are close to each other. The third electric push rod 523 is fixedly installed on the upper end surface of the connecting plate 522 through a supporting plate. The telescopic end of the third electric push rod 523 is fixedly installed with a clamping plate 524 located directly above the connecting plate 522.

[0035] See also Figure 1 and Figure 2 The closing portion 53 includes a support block 531, a spring telescopic rod 532 and a trapezoidal baffle 533. The left and right end surfaces of the drying box 2 are fixedly installed with support blocks 531 located above the corresponding limiting guide rails 511 and symmetrical in the front and back. The lower end of the support block 531 is fixedly installed with a spring telescopic rod 532. The lower ends of the front and back symmetrical spring telescopic rods 532 are jointly fixedly installed with a trapezoidal baffle 533 located on the side of the corresponding limiting guide rail 511 away from the drying box 2.

[0036] During specific work, when the graphene film needs to be dried, the worker inserts the initial end of the graphene film into the material hole on the front side of the drying box 2, and the graphene film entering the drying box 2 will directly fall on the upper end surface of the connecting plate 522. At this time, the third electric push rod 523 is started to make its telescopic end bring the clamping plate 524 closer to the connecting plate 522 until the clamping plate 524 presses the initial end of the graphene film onto the connecting plate 522. At this time, the clamping plate 524 and the connecting plate 522 complete the fixation of the initial end of the graphene film.

[0037] Then, the second motor 513 is started to drive the screw 512 to rotate, thereby moving the graphene film fixed on the connecting plate 522 backward through the clamping slider 521 until the clamping slider 521 moves to the rearmost end of the limiting guide rail 511. At this time, the initial end of the graphene film passes through the material passing hole on the rear side of the drying box 2. At this time, the second motor 513 can be stopped, and the third electric push rod 523 can be started in reverse to release the fixation of the initial end of the graphene film.

[0038] When the clamping slider 521 moves backward, the inclined surface of the trapezoidal baffle 533 will squeeze it upward, so that the spring telescopic rod 532 is compressed. When the clamping slider 521 reaches the rearmost end of the limiting guide rail 511, the squeezing of the trapezoidal baffle 533 by the clamping slider 521 disappears. Under the action of the spring telescopic rod 532, the trapezoidal baffle 533 is pressed down to block the limiting guide rail 511, thereby closing the two sides of the drying box 2, thereby reducing the loss of heat inside the drying box 2 and making its internal temperature more stable.

[0039] See also Figure 1 and Figure 2 The transport part 42 includes a transport roller 421, a first motor 422, a second electric push rod 423, an extrusion frame 424 and an extrusion roller 425. The rear end surface of the drying box 2 is rotatably installed with the transport roller 421 located below the material passing hole on the rear side through the provided bearing seat. The rear end surface of the drying box 2 is fixedly installed with the first motor 422 whose output end is fixedly connected with the transport roller 421. The rear end surface of the drying box 2 is fixedly installed with the second electric push rod 423. The telescopic end of the second electric push rod 423 is fixedly installed with the extrusion frame 424. The extrusion frame 424 is installed with an extrusion roller 425 that cooperates with the transport roller 421 through a bearing.

[0040] During specific operation, when the guide mechanism 5 passes the initial end of the graphene film through the material passage hole on the rear side of the drying box 2, the second electric push rod 423 is started to drive the extrusion roller 425 to approach the transport roller 421 through the extrusion frame 424 until the extrusion roller 425 and the transport roller 421 extrude the graphene film. At this time, the second electric push rod 423 is stopped, and the first motor 422 is started to rotate the transport roller 421, so that the graphene film can be pulled backward to complete its transportation, so that the graphene film can be continuously delivered to the drying box 2, thereby improving production efficiency.

[0041] At the same time, the first electric push rod 412 is started to make its telescopic end carry the scraper plate 413 toward the feed ramp 411 until the scraper plate 413 and the scraper rubber strip contact the upper end surface of the graphene film. In the process of the transportation part 42 transporting the graphene film, the scraper rubber strip will scrape the large particles of water droplets attached to the surface of the graphene film, so as to prevent the water droplets from local overheating or steam explosion during the drying process. At the same time, removing the large particles of water droplets on the surface can also avoid water stains or spots on the surface of the film after drying.

[0042] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The driving part 61 includes a bidirectional screw 611, a connecting block 612, a third motor 613 and a supporting platform 614. The bidirectional screws 611 are installed between the equipment plate 3 and the base 1 through bearings and are symmetrical about the drying box 2. The lower ends of the bidirectional screws 611 are connected by a belt transmission. The output end of the third motor 613 fixedly connected to one of the bidirectional screws 611 is fixedly installed on the base 1. The bidirectional screws 611 are commonly threadedly connected with the connecting blocks 612 symmetrical about the drying box 2. The supporting platforms 614 are fixedly installed on the sides of the symmetrical connecting blocks 612 that are close to each other, and the upper and lower supporting platforms 614 are staggered front and back.

[0043] See also Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The bending portion 62 includes a first slide bar 621, a second slide bar 622, a first shaft bar 623, a second shaft bar 624 and a bending roller 625. The lower end surface of the support platform 614 located on the upper side is fixedly installed with a left-right symmetrical first slide bar 621 that slides through the upper end surface of the drying box 2. The left-right symmetrical first slide bars 621 are a group, and the lower end surface of the support platform 614 is evenly distributed with a plurality of groups of first slide bars 621 in an array from front to back. The upper end surface of the support platform 614 located on the lower side is fixedly installed with a left-right symmetrical first slide bar 621 that slides through the upper end surface of the drying box 2. The second slide bars 622 on the lower end surface of the box 2 are symmetrical in shape as a group, and a plurality of groups of second slide bars 622 are evenly distributed in an array from front to back on the upper end surface of the support platform 614. The first shaft rods 623 are fixedly installed on the lower ends of the symmetrical first slide bars 621, and the second shaft rods 624 are fixedly installed on the upper ends of the symmetrical second slide bars 622. The first shaft rods 623 and the second shaft rods 624 are staggered, and bending rollers 625 are provided on the first shaft rods 623 and the second shaft rods 624 through bearing sleeves.

[0044] During specific operation, after the guide mechanism 5 passes the initial end of the graphene film through the material passage hole on the rear side of the drying box 2, while the transport unit 42 is extruding the graphene film, the third motor 613 is started to rotate the bidirectional screw 611 fixedly connected thereto, and the bidirectional screws 611 on both sides rotate synchronously with the cooperation of the belt, thereby driving the upper and lower connecting blocks 612 to approach the drying box 2 synchronously, and making the corresponding support platform 614 approach the drying box 2.

[0045] As the support platforms 614 on the upper and lower sides approach each other, the upper support platform 614 will drive the first shaft 623 to descend through the left-right symmetrical first slide bar 621, and the bending roller 625 on the first shaft 623 will push the graphene film downward, while the lower support platform 614 will drive the second shaft 624 to rise through the left-right symmetrical second slide bar 622, and the bending roller 625 on the second shaft 624 will push the graphene film upward, and the staggered distribution of the first shaft 623 and the second shaft 624 will make the two shafts bend the graphene film into a wave shape with their respective bending rollers 625, and in the process of the transport unit 42 transporting the graphene film backward, the graphene film will move following the wave-like arrangement of the bending rollers 625, and when the graphene film is dried, the wave-like shape of the graphene film can increase the contact area between the graphene film and the heat source, and help to evenly distribute the hot air and heat, thereby improving the heat transfer efficiency.

[0046] See also Figure 4 , Figure 5 , Figure 6 and Figure 7The heating portion 63 includes a first L-shaped support rod 631, a second L-shaped support rod 632, a heating plate 633, a limiting rod 634 and an extrusion block 635. The second shaft rod 624 is rotatably mounted with a first L-shaped support rod 631 symmetrically about the corresponding bending roller 625 through a torsion spring, and the first shaft rod 623 is rotatably mounted with a second L-shaped support rod 632 symmetrically about the corresponding bending roller 625 through a torsion spring. The second L-shaped support rod 632 corresponds to the horizontal section of the first L-shaped support rod 631, and a heating rod is fixedly mounted between the left-right symmetrical second L-shaped support rod 632 and the left-right symmetrical first L-shaped support rod 631. The hot plate 633, the second shaft 624 is fixedly installed with a limit rod 634 for limiting the rotation of the first L-shaped support rod 631, the first shaft 623 is fixedly installed with a limit rod 634 for limiting the rotation of the second L-shaped support rod 632, the second shaft 624 and the first shaft 623 are both fixedly installed with left-right symmetrical extrusion blocks 635, the extrusion blocks 635 are composed of a fixing ring and an extrusion column, the extrusion column on the second shaft 624 squeezes the second L-shaped support rod 632 upward away from the corresponding end of the first shaft 623, and the extrusion column on the first shaft 623 squeezes the first L-shaped support rod 631 downward away from the corresponding end of the second shaft 624.

[0047] See also Figure 4 , Figure 5 , Figure 6 and Figure 7 The air supply part 64 includes a ventilation plate 641, a connecting pipe 642 and an air hole 643. The heating plates 633 on the upper and lower sides at the front are provided with a plurality of air holes 643 in an array manner. The ventilation plates 641 located directly above the corresponding heating plates 633 are fixedly installed on the left-right symmetrical second L-shaped support rod 632 at the front. The ventilation plates 641 located directly below the corresponding heating plates 633 are fixedly installed on the left-right symmetrical first L-shaped support rod 631 at the front. The connecting pipe 642 is fixedly installed on the sides of the ventilation plates 641 on the upper and lower sides away from each other.

[0048] During specific operation, as the first shaft 623 descends, the first shaft 623 will squeeze one end of the first L-shaped support rod 631 downward away from the corresponding second shaft 624 through the squeezing column of the squeezing block 635, so that the first L-shaped support rods 631 on the left and right sides rotate downward with the second shaft 624 as the center, thereby causing the corresponding heating plates 633 to rotate downward. During the rotation, the distance between the heating plate 633 on the lower side and the surface of the graphene film remains unchanged, and the squeezing block 635 on the first shaft 623 will always squeeze the first L-shaped support rod 631.

[0049] At the same time, during the rising process of the second shaft rod 624, the second shaft rod 624 will squeeze the end of the second L-shaped support rod 632 away from the corresponding first shaft rod 623 upward through the squeezing column of the squeezing block 635, so that the second L-shaped support rods 632 on the left and right sides rotate upward with the first shaft rod 623 as the center, thereby rotating the corresponding heating plate 633 upward. During the rotation process, the distance between the heating plate 633 on the upper side and the surface of the graphene film remains unchanged, and the squeezing block 635 of the second shaft rod 624 will always squeeze the second L-shaped support rod 632.

[0050] The heating plate 633 can then be started to thermally dry the graphene film, and the distance between the heating plates 633 on the upper and lower sides and the graphene film remains unchanged to ensure that the heat transfer is stable and uniform during the entire drying process. The heating temperature of the heating plate 633 gradually decreases from front to back to avoid overheating of the graphene film surface temperature.

[0051] Subsequently, an external air pump (not shown in the figure) fixedly mounted on the base 1 is started to provide airflow to the ventilation plates 641 on the upper and lower sides of the front end through the external delivery pipe and the connecting pipe 642. The airflow of the ventilation plates 641 will pass through the air holes 643 on the front heating plate 633 to dry the upper and lower end surfaces of the graphene film. In this way, during the process of transporting the graphene film by the transport part 42, the graphene film is dried by combining airflow drying with thermal drying to more effectively remove moisture.

[0052] When the bending portion 62 needs to be reset, the third motor 613 is started in reverse to cooperate with the driving portion 61 and the bending portion 62 to raise the first shaft 623 and lower the second shaft 624. When the squeezing of the first L-shaped support rod 631 and the second L-shaped support rod 632 by the corresponding squeezing block 635 disappears, under the action of the torsion spring, the horizontal sections of the first L-shaped support rod 631 and the second L-shaped support rod 632 return to a horizontal state, and the limiting rod 634 prevents the corresponding first L-shaped support rod 631 and the second L-shaped support rod 632 from over-flipping, so as to leave guiding space for the guide mechanism 5.

[0053] Working principle: When the graphene film needs to be dried, the worker inserts the initial end of the graphene film into the material hole on the front side of the drying box 2, starts the third electric push rod 523 to fix the initial end of the graphene film through the clamping part 52, and then starts the second motor 513 to pass the initial end of the graphene film through the material hole on the rear side of the drying box 2 through the guide part 51, and then releases the fixation of the initial end of the graphene film.

[0054] Then, the second electric push rod 423 is started to transport the graphene film into the drying box 2 through the transport part 42, and at the same time, the first electric push rod 412 is started to scrape the large particles of water droplets attached to the surface of the graphene film through the scraping part 41.

[0055] After the guide mechanism 5 passes the initial end of the graphene film through the material passage hole on the rear side of the drying box 2, while the transport unit 42 extrude the graphene film, the third motor 613 is started to bend the graphene film into a wavy shape through the cooperation of the driving unit 61 and the bending unit 62, and while the transport unit 42 transports the graphene film backward, the graphene film will move following the wavy arrangement of the bending rollers 625.

[0056] Subsequently, the heating plate 633 is started to thermally dry the graphene film. The distance between the heating plates 633 on the upper and lower sides and the graphene film is kept constant through the drying mechanism 6, ensuring that the heat transfer is stable and uniform during the entire drying process. Subsequently, an external air pump (not shown in the figure) fixedly mounted on the base 1 is started, and the upper and lower end surfaces of the graphene film are air-dried through the air supply portion 64. In this way, during the process of transporting the graphene film by the transport portion 42, the graphene film is dried by combining air-flow drying with thermal drying.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A graphene film automatic drying device, comprising a base (1), characterized in that: A drying box (2) and a device plate (3) located above the drying box (2) are fixedly mounted on the upper end surface of the base (1) via a support rod, and a transport mechanism (4) for transporting the graphene film is provided on the drying box (2); The transport mechanism (4) comprises a scraping part (41) arranged on the drying box (2) and used to scrape large particles of water droplets attached to the surface of the graphene film, and the drying box (2) is provided with a transport part (42); The drying box (2) is provided with a guide mechanism (5) which cooperates with the transport mechanism (4) and is used to guide the graphene film; The guide mechanism (5) comprises a guide portion (51) arranged on the drying box (2), the guide portion (51) being provided with a clamping portion (52) for clamping the initial end of the graphene film, and the guide portion (51) being further provided with a closing portion (53) for closing the drying box (2); The drying box (2) and the equipment plate (3) are jointly provided with a drying mechanism (6) for continuously drying the graphene film; The drying mechanism (6) comprises a driving part (61) arranged on the equipment plate (3), the driving part (61) being provided with a bending part (62) cooperating therewith and used to bend the graphene film into a wave shape, the bending part (62) being provided with a heating part (63) for heating the graphene film at a fixed distance, and the heating part (63) being provided with an air supply part (64) cooperating therewith and used to dry the graphene film by combining airflow drying with thermal drying; The scraper part (41) comprises a feed inclined plate (411), a first electric push rod (412) and a scraper plate (413); the front and rear end surfaces of the drying box (2) are both provided with material passing holes; the front end surface of the drying box (2) is fixedly provided with a feed inclined plate (411) located below the material passing hole on the front side; the front end surface of the drying box (2) is fixedly provided with a first electric push rod (412); the telescopic end of the first electric push rod (412) is fixedly provided with a scraper plate (413) parallel to the inclined surface of the feed inclined plate (411); a side wall of the scraper plate (413) close to the feed inclined plate (411) is provided with a plurality of scraper rubber strips in an array manner; The transport part (42) comprises a transport roller (421), a first motor (422), a second electric push rod (423), an extrusion frame (424) and an extrusion roller (425); the rear end surface of the drying box (2) is rotatably mounted with the transport roller (421) located below the material passage hole at the rear side through a bearing seat; the rear end surface of the drying box (2) is fixedly mounted with the first motor (422) whose output end is fixedly connected to the transport roller (421); the rear end surface of the drying box (2) is fixedly mounted with the second electric push rod (423); the telescopic end of the second electric push rod (423) is fixedly mounted with the extrusion frame (424); and the extrusion frame (424) is mounted with an extrusion roller (425) matched with the transport roller (421) through a bearing; The guide portion (51) comprises a limiting guide rail (511), a screw rod (512) and a second motor (513); the limiting guide rail (511) is fixedly installed through the center of the left and right end surfaces of the drying box (2); the screw rod (512) located below the corresponding limiting guide rail (511) is rotatably installed on the right end surface of the drying box (2) through a bearing seat; and the second motor (513) whose output end is fixedly connected to the screw rod (512) is fixedly installed on the drying box (2); The clamping portion (52) comprises a clamping slider (521), a connecting plate (522), a third electric push rod (523) and a clamping plate (524); the clamping slider (521) is slidably installed in the limiting guide rail (511); the clamping slider (521) located on the right side is threadedly connected to the screw rod (512); a connecting plate (522) located in the drying box (2) is fixedly installed on the side where the clamping sliders (521) are close to each other; the third electric push rod (523) is fixedly installed on the upper end surface of the connecting plate (522) via a support plate; and the telescopic end of the third electric push rod (523) is fixedly installed with a clamping plate (524) located directly above the connecting plate (522); The closing portion (53) comprises a support block (531), a spring telescopic rod (532) and a trapezoidal baffle (533); the left and right end surfaces of the drying box (2) are both fixedly mounted with support blocks (531) located above the corresponding limiting guide rail (511) and symmetrical in front and back; the lower end of the support block (531) is fixedly mounted with a spring telescopic rod (532); the lower ends of the symmetrical spring telescopic rods (532) are jointly fixedly mounted with a trapezoidal baffle (533) located on the side of the corresponding limiting guide rail (511) away from the drying box (2); The driving part (61) comprises a bidirectional screw (611), a connecting block (612), a third motor (613) and a supporting platform (614); a bidirectional screw (611) symmetrically disposed with respect to the drying box (2) is installed between the equipment plate (3) and the base (1) via a bearing; the lower ends of the bidirectional screws (611) are connected via a belt transmission; a third motor (613) whose output end is fixedly connected to one of the bidirectional screws (611) is fixedly installed on the base (1); a connecting block (612) symmetrically disposed with respect to the drying box (2) is commonly threadedly connected to the bidirectional screws (611); a supporting platform (614) is fixedly installed on the sides of the bidirectional connecting blocks (612) that are close to each other; and the supporting platforms (614) on the upper and lower sides are offset front to back; The bending portion (62) includes a first sliding bar (621), a second sliding bar (622), a first shaft (623), a second shaft (624) and a bending roller (625); the lower end surface of the support platform (614) located on the upper side is fixedly installed with a first sliding bar (621) that is symmetrical on the left and right and slides through the upper end surface of the drying box (2); the left and right symmetrical first sliding bars (621) form a group, and the lower end surface of the support platform (614) is evenly distributed in an array from front to back. The upper end surface of the support platform (614) located on the lower side is fixedly installed with a first sliding bar (621) that is symmetrical on the left and right and slides through the upper end surface of the drying box (2). The second slide bars (622) on the lower end surface of the drying box (2) are symmetrical in left and right as a group, and a plurality of groups of second slide bars (622) are evenly distributed in an array from front to back on the upper end surface of the support platform (614), the lower ends of the symmetrical first slide bars (621) are fixedly mounted with a first shaft bar (623), and the upper ends of the symmetrical second slide bars (622) are fixedly mounted with a second shaft bar (624), the first shaft bar (623) and the second shaft bar (624) are staggered, and bending rollers (625) are provided on the first shaft bar (623) and the second shaft bar (624) through bearing sleeves; The heating portion (63) comprises a first L-shaped support rod (631), a second L-shaped support rod (632), a heating plate (633), a limiting rod (634) and an extrusion block (635); the second shaft rod (624) is rotatably mounted with a first L-shaped support rod (631) symmetrically about a corresponding bending roller (625) by means of a torsion spring; the first shaft rod (623) is rotatably mounted with a second L-shaped support rod (632) symmetrically about a corresponding bending roller (625) by means of a torsion spring; the second L-shaped support rod (632) corresponds to the horizontal section of the first L-shaped support rod (631); and a second L-shaped support rod (632) and a second L-shaped support rod (631) are fixedly mounted between the symmetrical second L-shaped support rods (632) and the symmetrical first L-shaped support rods (631). The heating plate (633) is provided with a limit rod (634) fixedly mounted on the second shaft (624) for limiting the rotation of the first L-shaped support rod (631); the limit rod (634) fixedly mounted on the first shaft (623) for limiting the rotation of the second L-shaped support rod (632); the second shaft (624) and the first shaft (623) are both fixedly mounted with left-right symmetrical extrusion blocks (635); the extrusion blocks (635) are composed of a fixing ring and an extrusion column; the extrusion column on the second shaft (624) extrudes the second L-shaped support rod (632) upwards away from the corresponding end of the first shaft (623); the extrusion column on the first shaft (623) extrudes the first L-shaped support rod (631) downwards away from the corresponding end of the second shaft (624); The air supply part (64) comprises a ventilation plate (641), a connecting pipe (642) and an air hole (643); the heating plates (633) at the upper and lower sides at the front are provided with a plurality of air holes (643) arranged in an array; the ventilation plate (641) located directly above the corresponding heating plate (633) is fixedly mounted on the left-right symmetrical second L-shaped support rod (632) at the front; the ventilation plate (641) located directly below the corresponding heating plate (633) is fixedly mounted on the left-right symmetrical first L-shaped support rod (631) at the front; and the connecting pipe (642) is fixedly mounted on the sides of the ventilation plates (641) at the upper and lower sides away from each other.

Images