A cutting device for producing bacterial nanocellulose membranes

Abstract

The application relates to the technical field of bacterial nanocellulose film production and processing, and discloses a cutting device for bacterial nanocellulose film production, which comprises a conveying mechanism; a plurality of supporting discs are arranged on the conveying mechanism and used for placing bacterial nanocellulose films; a plurality of pulling through grooves are arranged on the supporting discs; the installation box is open on both sides, the conveying mechanism passes through the installation box, and a negative pressure adsorption mechanism, a moving mechanism, an auxiliary clamping mechanism and a cutting mechanism are arranged in the installation box; the negative pressure adsorption mechanism can be in contact with the bacterial nanocellulose films through the plurality of pulling through grooves; the moving mechanism is used for driving the negative pressure adsorption mechanism to slide along the plurality of pulling through grooves; the auxiliary clamping mechanism is used for abutting against one end of the bacterial nanocellulose films away from the negative pressure adsorption mechanism, and the auxiliary clamping mechanism moves synchronously when the negative pressure adsorption mechanism slides along the pulling through grooves; and the cutting mechanism is used for cutting the bacterial nanocellulose films. The application can reduce the error value during cutting, and improve the cutting precision and efficiency.

Description

Technical Field

[0001] This invention relates to the field of bacterial nanocellulose membrane production and processing technology, and in particular to a cutting device for bacterial nanocellulose membrane production. Background Technology

[0002] Bacterial cellulose is another type of natural, non-toxic nanomaterial synthesized by microbial fermentation, besides plant cellulose. It is also called microbial cellulose. Bacterial cellulose belongs to nanofibers and is the finest of the natural fibers currently available. Moreover, bacterial cellulose exists in the form of 100% cellulose, with extremely high purity, and has good permeability, high tensile strength, and excellent property retention.

[0003] Because the bacterial cellulose membrane is in a hydrogel state after formation, it has elasticity and fluidity, which often causes the bacterial cellulose membrane laid on the cutting platform to be in a certain state of wrinkles or sliding, making positioning difficult. Therefore, when using existing automated cutting equipment, it cannot be accurately processed and manual adjustment is required, which seriously affects the cutting efficiency. In addition, manual operation is more dangerous during cutting. Summary of the Invention

[0004] The purpose of this invention is to provide a cutting device for the production of bacterial nanocellulose membranes, which aims to solve or improve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention provides a cutting device for the production of bacterial nanocellulose membranes, comprising:

[0006] Conveying mechanism;

[0007] Multiple support plates are disposed on the conveying mechanism. The support plates are used to place bacterial nanocellulose membranes and have multiple pull grooves.

[0008] The mounting box has open sides, and the conveying mechanism passes through the mounting box. The mounting box is equipped with a negative pressure adsorption mechanism, a moving mechanism, an auxiliary clamping mechanism, and a cutting mechanism.

[0009] The negative pressure adsorption mechanism can contact the bacterial nanocellulose membrane through multiple pull channels;

[0010] The moving mechanism is used to drive the negative pressure adsorption mechanism to slide along the multiple pulling grooves so that the bacterial nanocellulose membrane can be unfolded.

[0011] The auxiliary clamping mechanism is used to resist one end of the bacterial nanocellulose film away from the negative pressure adsorption mechanism, and the contact points of the auxiliary clamping mechanism and the negative pressure adsorption mechanism correspond to the bacterial nanocellulose film, and the auxiliary clamping mechanism moves synchronously when the negative pressure adsorption mechanism slides along the pulling through slot.

[0012] The cutting mechanism is used to cut the bacterial nanocellulose film.

[0013] Optionally, the conveying mechanism comprises:

[0014] A pair of drive rollers;

[0015] A pair of conveyors are drivingly connected to the pair of drive rollers, and a plurality of the support plates are arranged between the pair of conveyors.

[0016] Optionally, the negative pressure adsorption mechanism comprises:

[0017] A plurality of adsorption cylinders correspond to the plurality of pulling through slots one by one, and the adsorption cylinders are used to contact the bacterial nanocellulose film, and pistons are slidingly connected in the adsorption cylinders;

[0018] A first cylinder is fixedly installed in the mounting box;

[0019] A connecting plate is fixedly connected to the output end of the first cylinder, a plurality of telescopic members are fixedly connected to the connecting plate, the plurality of telescopic members correspond to the piston rods of the plurality of pistons one by one and are fixedly connected, and the telescopic members are parallel to the pulling through slots.

[0020] Optionally, the moving mechanism comprises:

[0021] A motor, whose output shaft is connected with a driving bevel gear;

[0022] A plurality of shaft rods are respectively rotatably connected in the mounting box through a pair of first support frames, the plurality of shaft rods correspond to the plurality of pulling through slots one by one and are parallel to each other, one end of the shaft rod is fixedly connected with a driven bevel gear, the driven bevel gear is engaged with the driving bevel gear, a threaded section is arranged on the shaft rod, a threaded slide block is threadedly connected to the threaded section, a first connecting plate and a second connecting plate are fixedly connected to the threaded slide block, the plurality of first connecting plates correspond to the plurality of adsorption cylinders one by one and are connected, a first light rod is slidingly and penetratively arranged in the second connecting plate, and the first light rod is fixedly connected between the pair of first support frames.

[0023] Optionally, the auxiliary clamping mechanism comprises:

[0024] A second cylinder is fixedly installed in the mounting box;

[0025] A connecting frame connected with the output end of the second cylinder, a plurality of second support frames fixedly connected on the connecting frame, a pair of second light poles fixedly connected on the second support frames, a plurality of pairs of the second light poles corresponding to and parallel to the plurality of pulling grooves, an auxiliary sliding block slidingly fitted on a pair of the second light poles, a pressing block fixedly connected on the auxiliary sliding block, the pressing block used for abutting against the bacterial nanocellulose film, a plurality of the pressing blocks corresponding to a plurality of the adsorption barrels one by one in the up-down direction, and a suction assembly arranged between the pressing block and the adsorption barrel.

[0026] Optionally, the suction assembly comprises:

[0027] A first magnet fixedly connected with the adsorption barrel;

[0028] A second magnet fixedly connected with the pressing block, the second magnet used for being attracted to the first magnet.

[0029] Optionally, a spring fixedly connected between the auxiliary sliding block and the second support frame.

[0030] Optionally, the cutting mechanism comprises:

[0031] A third cylinder fixedly installed in the mounting box;

[0032] A cutting knife connected with the output end of the third cylinder, the cutting knife used for cutting the bacterial nanocellulose film.

[0033] Optionally, a plurality of the pulling grooves on the support disc are arranged along the center of the support disc in the circumferential direction.

[0034] Optionally, the support disc comprises a plurality of spliced bodies, and the plurality of spliced bodies are connected through a plurality of hinged pieces.

[0035] The present application discloses the following technical effects: by placing the bacterial nanocellulose film to be cut on the support disc, the support disc is transferred into the mounting box by the conveying mechanism, the bacterial nanocellulose film in the pulling groove is first clamped and fixed by the cooperation of the negative pressure adsorption mechanism and the auxiliary clamping mechanism, a plurality of clamping points are formed, and the plurality of clamping points on the negative pressure adsorption mechanism are driven to move by the moving mechanism, so that the bacterial nanocellulose film is unfolded, thereby eliminating the wrinkled state of the bacterial nanocellulose film, and then the bacterial nanocellulose film is cut by the cutting mechanism, without manual auxiliary adjustment of the bacterial nanocellulose film, the safety is improved, the error value during cutting is reduced, the quality and appearance of the bacterial nanocellulose film obtained by cutting are avoided to be affected, and the cutting precision and efficiency are improved. BRIEF DESCRIPTION OF DRAWINGS

[0036] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The illustrations, together with the description, serve to explain the application, but do not limit the application. In the drawings:

[0037] Figure 1 is a schematic diagram of the overall structure of the present application;

[0038] Figure 2 is a schematic diagram of the internal structure of the mounting box of the present application;

[0039] Figure 3 is a schematic diagram of the negative pressure suction mechanism and the moving mechanism of the present application;

[0040] Figure 4 is a schematic diagram of the auxiliary clamping mechanism of the present application;

[0041] Figure 5 is a schematic diagram of the cutting mechanism of the present application;

[0042] Figure 6 is a front view of the support disc of the present application;

[0043] Figure 7 is a bottom view of the support disc of the present application.

[0044] In the drawings: 1, conveying mechanism; 11, driving roller; 12, conveying belt; 2, support disc; 21, pulling through slot; 22, splicing body; 23, hinged piece; 3, mounting box; 4, negative pressure suction mechanism; 41, suction cylinder; 42, piston; 43, first air cylinder; 44, connecting disc; 45, telescopic piece; 5, moving mechanism; 51, motor; 52, driving bevel gear; 53, shaft rod; 54, first support frame; 55, driven bevel gear; 56, threaded section; 57, threaded sliding block; 58, first connecting plate; 59, second connecting plate; 510, first light rod; 6, auxiliary clamping mechanism; 61, second air cylinder; 62, connecting frame; 63, second support frame; 64, second light rod; 65, auxiliary sliding block; 66, pressing block; 67, spring; 7, cutting mechanism; 71, third air cylinder; 72, cutting knife; 8, first magnet; 9, second magnet. DETAILED DESCRIPTION

[0045] Bacterial cellulose (BC) is a natural high-molecular-weight material produced by specific types of bacteria through fermentation under suitable conditions. It is primarily produced by Gluconacetobacter xylinus (also known as Acetobacter xylinum) and several other related strains. Compared to plant-derived cellulose, BC has a higher purity, finer and more uniformly distributed nanofiber network structure, which gives it many unique physical and chemical properties. Research and development began in the early 20th century when scientists first isolated cellulose-producing strains from acetic acid bacteria. With the advancement of science and technology, especially in the field of biotechnology, research on how to increase the yield of bacterial cellulose and its application range has increased. In 1945, Brown et al. first reported that acetic acid bacteria could produce cellulose. Subsequently, scientists began to study different types of acetic acid bacteria and found that some strains were particularly suitable for producing high-quality bacterial cellulose. Researchers have conducted in-depth studies on the structure, composition, and synthesis mechanism of bacterial cellulose, revealing its unique nanofiber network structure and high purity characteristics. These studies laid the theoretical foundation for subsequent application and development. In the 21st century, with the increasing awareness of sustainable development and environmental protection, bacterial cellulose as a renewable resource has received widespread attention. Scientists not only verified its potential uses in the laboratory but also made preliminary attempts in actual industrial production. For example, in the food, medicine, and cosmetics industries, bacterial cellulose shows good application prospects. Environment-friendly materials Due to the increasing global awareness of sustainable development and environmental protection, finding renewable resources has become an important issue. Bacterial cellulose, as a completely degradable and pollution-free green material, has shown great potential in many industries. Traditional plastic packaging materials, although convenient and practical, have caused serious environmental pollution problems due to their non-degradability. Bacterial cellulose, with its good mechanical properties and transparency, can be used as a substitute for making new environmentally friendly packaging materials. In the textile industry, bacterial cellulose can be used as a substitute for synthetic fibers, reducing the demand for fossil fuels. In addition, its good moisture absorption and breathability make it an ideal fabric for clothing. The transparency and uniformity of bacterial cellulose make it suitable for manufacturing high-performance optical films, such as display substrates, touch screens, and other high-tech products. Medical and health applications Due to its good biocompatibility, high water absorption, and breathability, bacterial cellulose is widely used in wound dressings, artificial skin, and other fields, and is also being explored as a drug delivery carrier. Bacterial cellulose dressings can provide a continuously moist environment, promote cell regeneration, and accelerate the wound healing process. In addition, its good breathability also helps prevent infection.In addition to the above uses, bacterial cellulose has also attracted attention for its low-calorie but satiety-inducing properties, and has potential in the development of functional foods. Bacterial cellulose can be used as a food additive to increase the volume of food without adding calories. This is very beneficial for weight loss and blood sugar control. The unique texture of bacterial cellulose can improve the mouthfeel of food, making it more delicate and refreshing. For example, adding bacterial cellulose to ice cream, jelly and other foods can enhance the consumer's eating experience. Bacterial cellulose can also be a source of dietary fiber, helping to maintain intestinal health. Studies have shown that moderate intake of dietary fiber can prevent constipation, reduce cholesterol and cardiovascular disease risk. Process improvement To meet the needs of different application scenarios and reduce costs, researchers are constantly trying to optimize the production conditions of bacterial cellulose (such as medium formula, temperature control, etc.), and explore new post-processing technologies to improve its performance or give additional functions. Selecting the right carbon source, nitrogen source and other nutrients is key to increasing bacterial cellulose production. Researchers can significantly improve the yield and quality of bacterial cellulose by adjusting the medium composition. Temperature, pH, oxygen supply and other conditions will affect the synthesis of bacterial cellulose. By precisely controlling these parameters, production efficiency can be further improved. After harvesting, bacterial cellulose usually needs to be washed, dried and other steps before being used for subsequent processing. Researchers have developed a variety of post-processing techniques, such as ultrasonic treatment, enzyme treatment, etc., to improve its performance. Through genetic engineering techniques, the production strain can be modified to have higher cellulose production capacity or produce bacterial cellulose with specific functions. For example, by introducing specific genes, bacterial cellulose can have antibacterial, anti-inflammatory and other properties. Application cases and commercialization status In recent years, with the continuous deepening of research and the progress of technology, bacterial cellulose has achieved commercialization in multiple fields. Several companies have launched wound dressings and artificial skin products based on bacterial cellulose. These products have received good feedback in the market and gradually replaced traditional materials. Some food companies in Japan and other places have begun to use bacterial cellulose as a food additive and have launched a series of low-calorie, high-fiber functional foods. These products have been well received by consumers. Some environmentally friendly packaging material companies have also begun to develop new packaging materials based on bacterial cellulose. These materials are not only environmentally friendly, but also have good mechanical properties and transparency, and are expected to replace traditional plastic packaging materials in the future. Future prospects Although bacterial cellulose has shown great application potential in multiple fields, it still faces some challenges. First, the cost of large-scale production is still high, and the production process needs to be further optimized to reduce costs.Secondly, market acceptance still needs to be improved, and more promotion and popularization work is needed. Finally, it is also necessary to continue to explore new application fields and expand the application range of bacterial cellulose. Future technological innovation will further promote the development of bacterial cellulose.

[0046] The production process of bacterial cellulose mainly includes the following steps:

[0047] 1. Preparation of culture medium: Mix various raw materials in proportion to prepare a culture medium suitable for bacterial growth.

[0048] 2. Sterilization: Sterilize the prepared culture medium at high temperature and high pressure to eliminate microbial contamination.

[0049] 3. Cooling: Cool the sterilized culture medium to an appropriate temperature for bacterial inoculation.

[0050] 4. Inoculation: Inoculate Agrobacterium xylosoxydans or other suitable bacteria into the cooled culture medium.

[0051] 5. Fermentation: Transfer the inoculated culture medium to a fermentation tank for fermentation. During the fermentation process, parameters such as temperature, pH value and dissolved oxygen need to be controlled to ensure the normal growth of bacteria and the synthesis of cellulose.

[0052] 6. Harvesting: After fermentation, the formed bacterial cellulose film or gel-like material is taken out from the fermentation tank.

[0053] 7. Washing: Wash the harvested bacterial cellulose multiple times to remove residual culture medium and impurities.

[0054] 8. Dewatering: Dewater the washed bacterial cellulose to reduce the water content.

[0055] 9. Drying: Dry the dewatered bacterial cellulose to achieve the desired water content.

[0056] 10. Post-processing: According to the specific application requirements, further process the dried bacterial cellulose, such as cutting, shaping, etc.

[0057] Culture medium is the basis for bacterial growth and cellulose synthesis, and its composition directly affects the yield and quality of bacterial cellulose. Common culture medium ingredients include carbon source, nitrogen source, minerals and other trace nutrients.

[0058] The post-processing steps of bacterial cellulose include harvesting, washing, dewatering and drying, etc., which are crucial for the quality and performance of the final product. Common post-processing equipment includes:

[0059] • Harvesting equipment: Bacterial cellulose is usually formed as a thin film or gel-like substance in a fermenter. The harvesting equipment can be manual scraping or using automated robotic arms. For large-scale production, automated harvesting equipment is usually adopted to improve efficiency.

[0060] • Washing equipment: After harvesting, bacterial cellulose needs to be washed multiple times to remove residual culture medium and impurities. The washing equipment can be a simple flushing tank or a fully automated washing line. Water temperature and flow rate need to be controlled during the washing process to avoid damage to the bacterial cellulose.

[0061] • Dewatering equipment: After washing, the bacterial cellulose has a high water content and needs to be dewatered. Commonly used dewatering equipment includes centrifuges, filter presses, and vacuum filters. Centrifuges separate water by high-speed rotation; filter presses squeeze water out by pressure; vacuum filters use negative pressure to suck water.

[0062] • Drying equipment: After dewatering, the bacterial cellulose still needs to be dried to achieve the desired water content. Commonly used drying equipment includes ovens, spray dryers, and freeze dryers. Ovens dry by heating air; spray dryers dry after atomizing liquid; freeze dryers remove water by sublimation at low temperature.

[0063] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0064] To make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0065] With reference to Figures 1-7 , the present application provides a cutting device for producing bacterial nanocellulose film, comprising:

[0066] a conveying mechanism 1;

[0067] a plurality of support discs 2 arranged on the conveying mechanism 1, the support discs 2 being used for placing bacterial nanocellulose films, and a plurality of pulling grooves 21 being formed on the support discs 2;

[0068] a mounting box 3 with both sides open, the conveying mechanism 1 passing through the mounting box 3, and a negative pressure adsorption mechanism 4, a moving mechanism 5, an auxiliary clamping mechanism 6, and a cutting mechanism 7 being arranged in the mounting box 3;

[0069] The negative pressure adsorption mechanism 4 can be in contact with the bacterial nanocellulose film through the plurality of pulling through-slots 21;

[0070] The moving mechanism 5 is used for driving the negative pressure adsorption mechanism 4 to slide along the plurality of pulling through-slots 21, so that the bacterial nanocellulose film is unfolded;

[0071] The auxiliary clamping mechanism 6 is used for abutting against one end of the bacterial nanocellulose film away from the negative pressure adsorption mechanism 4, and the auxiliary clamping mechanism 6 and the negative pressure adsorption mechanism 4 correspond to the contact points of the bacterial nanocellulose film, and the auxiliary clamping mechanism 6 moves synchronously when the negative pressure adsorption mechanism 4 slides along the pulling through-slots 21;

[0072] The cutting mechanism 7 is used for cutting the bacterial nanocellulose film.

[0073] By placing the bacterial nanocellulose film to be cut on the support disc 2, the support disc 2 is transferred into the mounting box 3 by the conveying mechanism 1, the bacterial nanocellulose film in the pulling through-slots 21 can be clamped and fixed by the negative pressure adsorption mechanism 4 and the auxiliary clamping mechanism 6, a plurality of clamping points are formed, and the plurality of clamping points on the negative pressure adsorption mechanism 4 are driven to move by the moving mechanism 5, so that the bacterial nanocellulose film is unfolded, thereby eliminating the wrinkle state of the bacterial nanocellulose film, and then the bacterial nanocellulose film is cut by the cutting mechanism 7, without manual auxiliary adjustment of the bacterial nanocellulose film, the safety is improved, the error value during cutting is reduced, the quality and appearance of the bacterial nanocellulose film obtained by cutting are avoided to be affected, and the cutting precision and efficiency are improved.

[0074] In an embodiment of the present application, the conveying mechanism 1 comprises:

[0075] A pair of driving rollers 11;

[0076] A pair of conveying belts 12 are drivingly matched on the pair of driving rollers 11, and a plurality of support discs 2 are arranged between the pair of conveying belts 12.

[0077] The pair of driving rollers 11 drives the pair of conveying belts 12 to drive the plurality of support discs 2 to rotate circularly, so that continuous processing is realized.

[0078] In an embodiment of the present application, the negative pressure adsorption mechanism 4 comprises:

[0079] A plurality of adsorption cylinders 41 correspond to the plurality of pulling through-slots 21 one by one, the adsorption cylinders 41 are used for contacting the bacterial nanocellulose film, and a piston 42 is slidingly matched in the adsorption cylinder 41;

[0080] A first air cylinder 43 is fixedly installed in the mounting box 3;

[0081] A connecting disc 44 is fixedly connected to the output end of the first cylinder 43, and a plurality of telescopic members 45 are fixedly connected to the connecting disc 44, the plurality of telescopic members 45 are in one-to-one correspondence with the piston rods of the plurality of pistons 42 and are fixedly connected, and the telescopic members 45 are parallel to the pulling grooves 21.

[0082] Firstly, the bacterial nanocellulose film is pressed to contact the adsorption cylinder 41 by the auxiliary clamping mechanism 6, and then the piston rods of the plurality of pistons 42 are pulled to move the pistons 42 to form negative pressure to adsorb the bacterial nanocellulose film by the first cylinder 43 through the connecting disc 44, thereby improving the clamping stability of the bacterial nanocellulose film, and the telescopic members 45 are arranged to enable the adsorption cylinder 41 to be movable and maintain the adsorption effect.

[0083] In an embodiment of the present application, the moving mechanism 5 comprises:

[0084] A motor 51, the output shaft of which is connected with a driving bevel gear 52;

[0085] A plurality of shaft rods 53 are rotatably connected in the mounting box 3 through a pair of first support frames 54 respectively, the plurality of shaft rods 53 are in one-to-one correspondence with the plurality of pulling grooves 21 and are parallel, one end of the shaft rod 53 is fixedly connected with a driven bevel gear 55, the driven bevel gear 55 is engaged with the driving bevel gear 52, a threaded section 56 is arranged on the shaft rod 53, a threaded block 57 is threadedly matched on the threaded section 56, a first connecting plate 58 and a second connecting plate 59 are fixedly connected on the threaded block 57, the plurality of first connecting plates 58 are in one-to-one correspondence with the plurality of adsorption cylinders 41 and are connected, and a first light rod 510 is slidably penetrated in the second connecting plate 59 and is fixedly connected between the pair of first support frames 54.

[0086] The motor 51 is driven to rotate the driving bevel gear 52, the driving bevel gear 52 drives the plurality of driven bevel gears 55 to rotate, so that the shaft rod 53 rotates, and the threaded section 56 and the threaded block 57 are threadedly transmitted through the guiding and limiting cooperation of the second connecting plate 59 and the first light rod 510, so that the threaded block 57 can move along the threaded section 56, thereby driving the adsorption cylinder 41 to move synchronously through the first connecting plate 58, so that the clamping point of the bacterial nanocellulose film is pulled to move along the pulling groove 21 by the adsorption cylinder 41, and the bacterial nanocellulose film is unfolded.

[0087] In an embodiment of the present application, the auxiliary clamping mechanism 6 comprises:

[0088] A second cylinder 61 is fixedly installed in the mounting box 3;

[0089] A connecting frame 62 is connected to the output end of the second cylinder 61, a plurality of second support frames 63 are fixedly connected to the connecting frame 62, a pair of second light poles 64 are fixedly connected to the second support frame 63, a plurality of pairs of second light poles 64 correspond to and are parallel to the plurality of pulling through slots 21, an auxiliary sliding block 65 is slidingly fitted on the pair of second light poles 64, a pressing block 66 is fixedly connected to the auxiliary sliding block 65, the pressing block 66 is used for abutting against the bacterial nanocellulose film, a plurality of pressing blocks 66 correspond to and are vertically arranged on the plurality of adsorption barrels 41, and a suction assembly is arranged between the pressing block 66 and the adsorption barrel 41.

[0090] The suction assembly comprises:

[0091] A first magnet 8 is fixedly connected to the adsorption barrel 41.

[0092] A second magnet 9 is fixedly connected to the pressing block 66, and the second magnet 9 is used for being attracted to the first magnet 8.

[0093] The connecting frame 62 is pushed by the second cylinder 61, the plurality of pressing blocks 66 are driven to move towards the adsorption barrel 41, so that the plurality of pressing blocks 66 press the bacterial nanocellulose film, and the first magnet 8 and the second magnet 9 are attracted to each other, so that the pressing block and the auxiliary sliding block 65 are synchronously slid along the second light pole 64 when the adsorption barrel 41 moves.

[0094] In an embodiment of the present application, a spring 67 is fixedly connected between the auxiliary sliding block 65 and the second support frame 63.

[0095] The spring 67 can automatically reset the auxiliary sliding block 65, so that the pressing block 66 and the adsorption barrel 41 are not misaligned in a non-working state.

[0096] In an embodiment of the present application, the cutting mechanism 7 comprises:

[0097] A third cylinder 71 is fixedly installed in the mounting box 3.

[0098] A cutting knife 72 is connected to the output end of the third cylinder 71, and the cutting knife 72 is used for cutting the bacterial nanocellulose film.

[0099] The third cylinder 71 pushes the cutting knife 72 to cut the bacterial nanocellulose film, and the configuration of the cutting knife 72 can be changed according to the shape of the required product, which is a prior art and will not be described here.

[0100] In an embodiment of the present application, the plurality of pulling through slots 21 are arranged along the center of the support disc 2 in a circumferential direction.

[0101] The initial position of the adsorption cylinder 41 is at one end of the pulling channel 21 close to the center of the support disc 2, so that the plurality of adsorption cylinders 41 move along the pulling channel 21 away from the center of the support disc 2, forming a diffusion movement, improving the spreading effect on the nanocellulose film.

[0102] In an embodiment of the present application, the support disc 2 comprises a plurality of splicing bodies 22, and the plurality of splicing bodies 22 are connected by a plurality of hinged members 23.

[0103] The support disc 2 formed by the plurality of splicing bodies 22 and the plurality of hinged members 23 can be highly adapted to the circulation mode of the conveying belt 12.

[0104] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0105] The above-described embodiments are only descriptions of the preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A cutting device for producing a bacterial nanocellulose membrane, characterized in that, The application relates to a bacterial nanocellulose film unwinding and cutting device. The device comprises a conveying mechanism (1), a plurality of support plates (2) arranged on the conveying mechanism (1), the support plates (2) being used for placing bacterial nanocellulose films, and a plurality of pulling grooves (21) being arranged on the support plates (2). The device further comprises a mounting box (3) with two open sides, the conveying mechanism (1) penetrating through the mounting box (3), and a negative pressure suction mechanism (4), a moving mechanism (5), an auxiliary clamping mechanism (6) and a cutting mechanism (7) being arranged in the mounting box (3). The negative pressure suction mechanism (4) can be in contact with the bacterial nanocellulose film through the plurality of pulling grooves (21). The moving mechanism (5) is used for driving the negative pressure suction mechanism (4) to slide along the plurality of pulling grooves (21) so that the bacterial nanocellulose film is unwound. The auxiliary clamping mechanism (6) is used for abutting against one end of the bacterial nanocellulose film away from the negative pressure suction mechanism (4), and the auxiliary clamping mechanism (6) and the negative pressure suction mechanism (4) correspond to the contact points of the bacterial nanocellulose film, and the auxiliary clamping mechanism (6) moves synchronously when the negative pressure suction mechanism (4) slides along the pulling grooves (21). The cutting mechanism (7) is used for cutting the bacterial nanocellulose film. The negative pressure suction mechanism (4) comprises a plurality of suction cylinders (41) corresponding to the plurality of pulling grooves (21), the suction cylinders (41) being used for contacting the bacterial nanocellulose film, and pistons (42) being slidably arranged in the suction cylinders (41). A first air cylinder (43) is fixedly arranged in the mounting box (3). A connecting plate (44) is fixedly connected to the output end of the first air cylinder (43), a plurality of telescopic members (45) are fixedly connected to the connecting plate (44), the plurality of telescopic members (45) correspond to the piston rods of the plurality of pistons (42) and are fixedly connected to the piston rods, and the telescopic members (45) are parallel to the pulling grooves (21). The auxiliary clamping mechanism (6) comprises a second air cylinder (61) fixedly arranged in the mounting box (3). A connecting frame (62) is connected to the output end of the second air cylinder (61), a plurality of second support frames (63) are fixedly connected to the connecting frame (62), a pair of second light rods (64) are fixedly connected to the second support frames (63), a plurality of pairs of the second light rods (64) correspond to the plurality of pulling grooves (21) and are parallel to the pulling grooves (21), an auxiliary sliding block (65) is slidably arranged on the second light rods (64), a pressing block (66) is fixedly connected to the auxiliary sliding block (65), the pressing block (66) is used for abutting against the bacterial nanocellulose film, a plurality of pressing blocks (66) correspond to the plurality of suction cylinders (41) in the up-down direction, and a suction assembly is arranged between the pressing block (66) and the suction cylinder (41). The suction assembly comprises a first magnet (8) fixedly connected to the suction cylinder (41) and a second magnet (9) fixedly connected to the pressing block (66), the second magnet (9) being used for being attracted to the first magnet (8). The conveying mechanism (1) comprises ​ ​ ​ ​ 2. The cutting device for producing a bacterial nanocellulose membrane according to claim 1, characterized in that, ​ A pair of driving rollers (11); A pair of conveying belts (12) are in driving cooperation with the pair of driving rollers (11), and a plurality of support discs (2) are arranged between the pair of conveying belts (12).

3. The cutting device for producing a bacterial nanocellulose membrane according to claim 1, characterized in that, The moving mechanism (5) comprises: A motor (51) whose output shaft is connected with a driving bevel gear (52); A plurality of shaft rods (53) are rotatably connected in the mounting box (3) through a pair of first support frames (54), the plurality of shaft rods (53) correspond to and are parallel to the plurality of pulling grooves (21) in a one-to-one manner, one end of the shaft rod (53) is fixedly connected with a driven bevel gear (55), the driven bevel gear (55) is engaged with the driving bevel gear (52), a threaded section (56) is arranged on the shaft rod (53), a threaded sliding block (57) is threadedly connected on the threaded section (56), a first connecting plate (58) and a second connecting plate (59) are fixedly connected on the threaded sliding block (57), the plurality of first connecting plates (58) correspond to and are connected with the plurality of adsorption cylinders (41) in a one-to-one manner, a first light rod (510) is slidably penetrated in the second connecting plate (59), and the first light rod (510) is fixedly connected between the pair of first support frames (54).

4. The cutting device for producing a bacterial nanocellulose membrane according to claim 1, characterized in that, A spring (67) is fixedly connected between the auxiliary sliding block (65) and the second support frame (63).

5. The cutting device for producing a bacterial nanocellulose membrane according to claim 1, characterized in that, The cutting mechanism (7) comprises: A third cylinder (71) is fixedly installed in the mounting box (3); A cutting knife (72) is connected with the output end of the third cylinder (71), and the cutting knife (72) is used for cutting bacterial nanocellulose membranes.

6. The cutting device for producing a bacterial nanocellulose membrane according to claim 1, characterized in that, The plurality of pulling grooves (21) on the support disc (2) are arranged along the center of the support disc (2) in a circumferential direction.

7. The cutting device for producing a bacterial nanocellulose membrane according to claim 1, characterized in that, The support disc (2) comprises a plurality of splicing bodies (22), and the plurality of splicing bodies (22) are connected through a plurality of hinged pieces (23).

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