Cutting device for bacterial nano cellulose membrane production

Abstract

The invention relates to the technical field of bacterial nanocellulose membrane production and processing, and discloses a cutting device for bacterial nanocellulose membrane production. The plurality of supporting discs are arranged on the conveying mechanism, the supporting discs are used for placing bacterial nano cellulose membranes, and a plurality of pulling through grooves are formed in the supporting discs; the two sides of the mounting box are open, the conveying mechanism penetrates through the mounting box, and a negative pressure adsorption mechanism, a moving mechanism, an auxiliary clamping mechanism and a cutting mechanism are arranged in the mounting box; the negative pressure adsorption mechanism can be in contact with the bacterial nano cellulose membrane 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 the end, away from the negative pressure adsorption mechanism, of the bacterial nano cellulose membrane, and when the negative pressure adsorption mechanism slides along the pulling through groove, the auxiliary clamping mechanism synchronously moves; according to the bacterial nano cellulose membrane cutting device, the error value during cutting can be reduced, and the cutting precision and efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of bacterial nanocellulose film production and processing, in particular to a cutting device for bacterial nanocellulose film production. Background Art

[0002] Bacterial cellulose is another type of natural non-toxic nanomaterial synthesized by microbial fermentation besides plant cellulose, also known as microbial cellulose. Bacterial cellulose belongs to nano-scale fibers, which are the thinnest natural fibers currently. Moreover, bacterial cellulose exists in the form of 100% cellulose, with extremely high purity, and has good permeability, high tensile strength and excellent property maintenance ability.

[0003] After the bacterial cellulose membrane is formed, it is in a hydrogel state with elasticity and fluidity, which will cause the bacterial cellulose membrane laid on the cutting platform to be in a certain wrinkled state or slide, making it difficult to position. Therefore, when using existing automatic cutting devices to cut, it is impossible to accurately handle it and requires manual adjustment, which seriously affects the cutting efficiency. In addition, manual operation is more dangerous during cutting. Summary of the invention

[0004] The object of the present invention is to provide a cutting device for producing bacterial nanocellulose membranes, aiming to solve or improve at least one of the above-mentioned technical problems.

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

[0006] Conveying mechanism;

[0007] A plurality of support plates, which are arranged on the conveying mechanism, the support plates are used to place the bacterial nanocellulose membrane, and the support plates are provided with a plurality of pulling grooves;

[0008] An installation box, with two sides open, through which the conveying mechanism passes, and in which a negative pressure adsorption mechanism, a moving mechanism, an auxiliary clamping mechanism and a cutting mechanism are arranged;

[0009] The negative pressure adsorption mechanism can contact the bacterial nanocellulose membrane through a plurality of the pulling grooves;

[0010] The moving mechanism is used to drive the negative pressure adsorption mechanism to slide along the plurality of pulling grooves so as to unfold the bacterial nanocellulose membrane;

[0011] The auxiliary clamping mechanism is used to press against one end of the bacterial nanocellulose membrane away from the negative pressure adsorption mechanism, and the auxiliary clamping mechanism and the contact point of the negative pressure adsorption mechanism with the bacterial nanocellulose membrane correspond to each other, and when the negative pressure adsorption mechanism slides along the pulling groove, the auxiliary clamping mechanism moves synchronously;

[0012] The cutting mechanism is used for cutting the bacterial nanocellulose membrane.

[0013] Optionally, the conveying mechanism includes:

[0014] a pair of driving rollers;

[0015] A pair of conveyor belts are driven and matched on a pair of driving rollers, and a plurality of support plates are arranged between the pair of conveyor belts.

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

[0017] A plurality of adsorption cylinders corresponding to the plurality of pulling through grooves one by one, the adsorption cylinders being used to contact the bacterial nanocellulose membrane, and a piston being slidably fitted in the adsorption cylinders;

[0018] A first cylinder, fixedly installed in the installation box;

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

[0020] Optionally, the moving mechanism includes:

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

[0022] A plurality of shafts are rotatably connected in the installation box through a pair of first support frames respectively, the plurality of shafts correspond one-to-one with and are parallel to the plurality of pulling grooves, one end of the shaft is fixedly connected with a driven bevel gear, the driven bevel gear is meshed with the active bevel gear, a threaded section is provided on the shaft, a threaded slider is threadedly matched on the threaded section, a first connecting plate and a second connecting plate are fixedly connected to the threaded slider, the plurality of the first connecting plates correspond one-to-one with and are connected to the plurality of adsorption cylinders, a first light rod is slidably passed through the second connecting plate, and the first light rod is fixedly connected between a pair of the first support frames.

[0023] Optionally, the auxiliary clamping mechanism includes:

[0024] A second cylinder, which is fixedly installed in the installation box;

[0025] A connecting frame is connected to the output end of the second cylinder, a plurality of second supporting frames are fixedly connected to the connecting frame, a pair of second optical rods are fixedly connected to the second supporting frames, the plurality of second optical rods correspond one-to-one to and are parallel to the plurality of pulling grooves, a pair of the second optical rods are slidably matched with auxiliary sliders, a pressure block is fixedly connected to the auxiliary slider, the pressure block is used to resist the bacterial nanocellulose membrane, a plurality of pressure blocks correspond one-to-one to the plurality of adsorption cylinders up and down, and a suction component is arranged between the pressure block and the adsorption cylinder.

[0026] Optionally, the suction assembly includes:

[0027] A first magnet, which is fixedly connected to the adsorption cylinder;

[0028] The second magnet is fixedly connected to the pressing block, and the second magnet is used to attract the first magnet.

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

[0030] Optionally, the cutting mechanism comprises:

[0031] A third cylinder, which is fixedly installed in the installation box;

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

[0033] Optionally, the plurality of pulling through grooves on the support plate are arranged along the central circumference of the support plate.

[0034] Optionally, the support plate includes a plurality of spliced ​​bodies, and the plurality of spliced ​​bodies are connected via a plurality of hinges.

[0035] The present invention discloses the following technical effects: by placing the bacterial nanocellulose membrane to be cut on a support plate, the support plate is transferred to an installation box by a conveying mechanism, and the bacterial nanocellulose membrane in the pulling groove can be clamped and fixed by cooperating with a negative pressure adsorption mechanism and an auxiliary clamping mechanism to form a plurality of clamping points, and the plurality of clamping points on the negative pressure adsorption mechanism are driven to move by a moving mechanism, so that the bacterial nanocellulose membrane is unfolded, thereby eliminating the wrinkled state of the bacterial nanocellulose membrane, and then the bacterial nanocellulose membrane is cut by a cutting mechanism, without the need for manual assistance to adjust the bacterial nanocellulose membrane, thereby improving safety, reducing the error value during cutting, avoiding affecting the quality and appearance of the bacterial nanocellulose membrane obtained by cutting, and improving cutting accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

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

[0038] Figure 2 It is a schematic diagram of the structure inside the installation box of the present invention;

[0039] Figure 3 It is a schematic diagram of the structure of the negative pressure adsorption mechanism and the moving mechanism of the present invention;

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

[0041] Figure 5 It is a schematic diagram of the cutting mechanism structure of the present invention;

[0042] Figure 6 It is a front view of the support plate of the present invention;

[0043] Figure 7 It is a bottom view of the support plate of the present invention.

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

[0045] Bacterial cellulose (BC) is a natural polymer material produced by a specific type of bacteria through a fermentation process under suitable conditions. It is mainly produced by Gluconacetobacter xylinus (also known as Acetobacter xylinum) and several other related strains. Compared with plant-derived cellulose, bacterial cellulose has higher purity and a smaller and more evenly distributed nanofiber network structure, which gives it many unique physical and chemical properties. Research and Development Since scientists first isolated strains that can produce cellulose from acetic acid bacteria in the early 20th century, people have begun to study this special form of cellulose. With the advancement of science and technology, especially in the field of biotechnology, there is an increasing number of studies on how to increase the yield of bacterial cellulose and its application range. In 1945, Brown et al. first reported that acetic acid bacteria can produce cellulose. Subsequently, scientists began to study different types of acetic acid bacteria and found that some of these strains are particularly suitable for producing high-quality bacterial cellulose. Through in-depth research on the structure, composition and synthesis mechanism of bacterial cellulose, researchers have revealed its unique nanofiber network structure and high purity. These studies have laid a theoretical foundation for subsequent application development. After entering the 21st century, with the enhancement of sustainable development and environmental awareness, bacterial cellulose as a renewable resource has received widespread attention. Researchers have not only verified its various potential uses in the laboratory, but also made preliminary attempts in actual industrial production. For example, in the fields of food, medicine, cosmetics, etc., bacterial cellulose shows good application prospects. Environmentally friendly materials Given the increasing global awareness of sustainable development and environmental protection, finding renewable resources has become an important issue. As a completely degradable and pollution-free green material, bacterial cellulose shows great potential in many industries. Although traditional plastic packaging materials are convenient and practical, their non-degradability has led to serious environmental pollution problems. Due to its good mechanical properties and transparency, bacterial cellulose can be used as a substitute for the production of new environmentally friendly packaging materials. In the textile industry, bacterial cellulose can be used as a substitute for synthetic fibers to reduce the demand for fossil fuels. In addition, its good hygroscopicity and air permeability make it an ideal clothing fabric. The transparency and uniformity of bacterial cellulose make it suitable for the manufacture of high-performance optical films, such as display substrates, touch screens and other high-tech products. Application in the medical and health field Due to its good biocompatibility, high water absorption and air permeability, bacterial cellulose is widely used in wound dressings, artificial skin and other fields, and is also being explored as a drug sustained-release carrier. Dressings made of bacterial cellulose can provide a continuously moist environment, promote cell regeneration, and accelerate the wound healing process. In addition, its good air permeability also helps prevent infection.Artificial skin made of bacterial cellulose has good biocompatibility and mechanical properties and can be used to treat burns and other skin injuries. Researchers are exploring the possibility of using bacterial cellulose as a drug sustained-release carrier. By controlling its structure and porosity, long-term drug release can be achieved and the therapeutic effect can be improved. 4. Use in the food industry In addition to the above uses, bacterial cellulose has also attracted attention for its low-calorie but satiety-providing characteristics, and it also has certain prospects in the development of functional foods. Bacterial cellulose can be used as a food additive to increase the volume of food without increasing calories. This is very beneficial for weight loss and controlling blood sugar levels. The unique texture of bacterial cellulose can improve the taste of food, making it more delicate and refreshing. For example, adding bacterial cellulose to foods such as ice cream and jelly can enhance consumers' eating experience. Bacterial cellulose can also be used as a source of dietary fiber to help maintain intestinal health. Studies have shown that moderate intake of dietary fiber can prevent constipation, reduce cholesterol and the risk of cardiovascular disease. Production process improvement In order 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 culture medium formulation, temperature control, etc.), as well as exploring new post-processing technologies to improve its performance or impart additional functions. Selecting the right carbon source, nitrogen source and other nutrients is the key to increasing the yield of bacterial cellulose. By adjusting the composition of the culture medium, researchers can significantly increase the yield and quality of bacterial cellulose. Conditions such as temperature, pH value, and oxygen supply 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 go through steps such as washing and drying before it can be used for subsequent processing. Researchers have developed a variety of post-processing techniques, such as ultrasonic treatment and enzyme treatment, to improve its performance. Through genetic engineering technology, production strains 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 be given antibacterial and anti-inflammatory properties. 6. Application Cases and Commercialization Status In recent years, with the continuous deepening of research and technological advancement, bacterial cellulose has been commercialized in many fields. Many companies have launched wound dressings and artificial skin products based on bacterial cellulose. These products have received a good response in the market and have 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 welcomed 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 Outlook Although bacterial cellulose has shown great application potential in many 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 publicity and promotion work is needed. Finally, it is necessary to continue to explore new application areas and expand the application scope 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. Culture medium preparation: Mix various raw materials in proportion to prepare a culture medium suitable for bacterial growth.

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

[0049] 3. Cooling: Cool the sterilized culture medium to a suitable temperature for inoculation of bacteria.

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

[0051] 5. Fermentation: The inoculated culture medium is transferred 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 normal bacterial growth and cellulose synthesis.

[0052] 6. Harvest: After fermentation, the bacterial cellulose film or gel-like substance formed is removed from the fermentation tank.

[0053] 7. Washing: The harvested bacterial cellulose is washed several times to remove residual culture medium and impurities.

[0054] 8. Dehydration: Dehydrate the washed bacterial cellulose to reduce its water content.

[0055] 9. Drying: Dry the dehydrated bacterial cellulose to achieve the required moisture content.

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

[0057] The 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 components include carbon sources, nitrogen sources, minerals and other trace nutrients.

[0058] Post-processing steps of bacterial cellulose include harvesting, cleaning, dehydration and drying, which are critical to the quality and performance of the final product. Common post-processing equipment includes:

[0059] Harvesting equipment: Bacterial cellulose usually forms a thin film or gel-like substance in the fermentation tank. The harvesting equipment can be manual scraping or using an automated robotic arm. For large-scale production, automated harvesting equipment is usually used to improve efficiency.

[0060] Cleaning equipment: After harvesting, bacterial cellulose needs to be cleaned several times to remove residual culture medium and impurities. The cleaning equipment can be a simple flushing tank or a fully automatic cleaning line. The water temperature and water flow need to be controlled during the cleaning process to avoid damage to the bacterial cellulose.

[0061] Dehydration equipment: The water content of bacterial cellulose after washing is high and needs to be dehydrated. Commonly used dehydration equipment includes centrifuge, filter press and vacuum filter. Centrifuge separates water through high-speed rotation; filter press squeezes out water through pressure; vacuum filter uses negative pressure to suck water.

[0062] Drying equipment: After dehydration, bacterial cellulose needs to be further dried to reach the required moisture content. Common drying equipment includes ovens, spray dryers and freeze dryers. Ovens dry by heating air; spray dryers atomize liquids and then dry them; freeze dryers remove moisture by low-temperature sublimation.

[0063] 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.

[0064] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0065] Reference Figure 1-Figure 7 The present invention provides a cutting device for producing bacterial nanocellulose membranes, comprising:

[0066] Conveying mechanism 1;

[0067] A plurality of support plates 2 are arranged on the conveying mechanism 1, the support plates 2 are used to place the bacterial nanocellulose membrane, and a plurality of pulling slots 21 are provided on the support plates 2;

[0068] The installation box 3 is open at both sides, and the conveying mechanism 1 passes through the installation box 3. The installation box 3 is provided with a negative pressure adsorption mechanism 4, a moving mechanism 5, an auxiliary clamping mechanism 6 and a cutting mechanism 7;

[0069] The negative pressure adsorption mechanism 4 can contact the bacterial nanocellulose membrane through a plurality of pulling grooves 21;

[0070] The moving mechanism 5 is used to drive the negative pressure adsorption mechanism 4 to slide along the plurality of pulling grooves 21 so as to unfold the bacterial nanocellulose membrane;

[0071] The auxiliary clamping mechanism 6 is used to hold the end of the bacterial nanocellulose membrane away from the negative pressure adsorption mechanism 4, and the contact points of the auxiliary clamping mechanism 6 and the negative pressure adsorption mechanism 4 with the bacterial nanocellulose membrane correspond to each other. When the negative pressure adsorption mechanism 4 slides along the pulling groove 21, the auxiliary clamping mechanism 6 moves synchronously.

[0072] The cutting mechanism 7 is used to cut the bacterial nanocellulose membrane.

[0073] By placing the bacterial nanocellulose membrane to be cut on the support plate 2, the support plate 2 is transferred to the installation box 3 by the conveying mechanism 1, and the bacterial nanocellulose membrane in the pulling groove 21 can be clamped and fixed by the cooperation of the negative pressure adsorption mechanism 4 and the auxiliary clamping mechanism 6 to form a plurality of clamping points, 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 membrane is unfolded, thereby eliminating the wrinkled state of the bacterial nanocellulose membrane, and then the bacterial nanocellulose membrane is cut by the cutting mechanism 7, without the need for manual assistance to adjust the bacterial nanocellulose membrane, thereby improving safety, reducing the error value during cutting, avoiding affecting the quality and appearance of the bacterial nanocellulose membrane obtained by cutting, and improving cutting accuracy and efficiency.

[0074] In one embodiment of the present invention, the conveying mechanism 1 comprises:

[0075] a pair of driving rollers 11;

[0076] A pair of conveyor belts 12 are coupled to a pair of driving rollers 11 , and a plurality of support plates 2 are disposed between the pair of conveyor belts 12 .

[0077] A pair of driving rollers 11 drives a pair of conveyor belts 12 to drive multiple support plates 2 to rotate cyclically, thereby realizing continuous processing.

[0078] In one embodiment of the present invention, the negative pressure adsorption mechanism 4 includes:

[0079] A plurality of adsorption cylinders 41 corresponding to the plurality of pulling through grooves 21 one by one, the adsorption cylinders 41 are used to contact the bacterial nanocellulose membrane, and a piston 42 is slidably fitted in the adsorption cylinders 41;

[0080] The first cylinder 43 is fixedly installed in the installation box 3;

[0081] The connecting disk 44 is fixedly connected to the output end of the first cylinder 43 . A plurality of telescopic members 45 are fixedly connected to the connecting disk 44 . The plurality of telescopic members 45 correspond to and are fixedly connected to the piston rods of the plurality of pistons 42 one by one. The telescopic members 45 are parallel to the pulling groove 21 .

[0082] First, the bacterial nanocellulose membrane is pressed down through the auxiliary clamping mechanism 6 until it contacts with the adsorption cylinder 41, and then the first cylinder 43 pulls the multiple telescopic parts 45 through the connecting disk 44, thereby pulling the piston rods of the multiple pistons 42 so that the pistons 42 move to form negative pressure to adsorb the bacterial nanocellulose membrane, thereby improving the clamping stability of the bacterial nanocellulose membrane. By setting the telescopic parts 45, the adsorption cylinder 41 can be kept in a movable state and the adsorption effect can be maintained.

[0083] In one embodiment of the present invention, the moving mechanism 5 comprises:

[0084] The motor 51 has an output shaft connected to a driving bevel gear 52;

[0085] A plurality of shafts 53 are rotatably connected in the installation box 3 through a pair of first support frames 54 respectively. The plurality of shafts 53 correspond one-to-one to and are parallel to the plurality of pulling grooves 21. A driven bevel gear 55 is fixedly connected to one end of the shaft 53. The driven bevel gear 55 is meshed with the active bevel gear 52. A threaded section 56 is provided on the shaft 53. A threaded slider 57 is threadedly matched on the threaded section 56. A first connecting plate 58 and a second connecting plate 59 are fixedly connected to the threaded slider 57. The plurality of first connecting plates 58 correspond one-to-one to and are connected to the plurality of adsorption cylinders 41. A first light rod 510 slides through the second connecting plate 59 and is fixedly connected between the pair of first support frames 54.

[0086] The active bevel gear 52 is driven to rotate by the motor 51, and the active bevel gear 52 drives multiple driven bevel gears 55 to rotate, so that the shaft 53 rotates, and the threaded segment 56 and the threaded slider 57 are matched through the guide limit of the second connecting plate 59 and the first light rod 510, so that the threaded slider 57 can move along the threaded segment 56, thereby driving the adsorption cylinder 41 to move synchronously through the first connecting plate 58, so that the adsorption cylinder 41 pulls the clamping point of the bacterial nanocellulose membrane to move along the pulling groove 21, thereby realizing the unfolding of the bacterial nanocellulose membrane.

[0087] In one embodiment of the present invention, the auxiliary clamping mechanism 6 comprises:

[0088] The second cylinder 61 is fixedly installed in the installation box 3;

[0089] A connecting frame 62 is connected to the output end of the second cylinder 61, and a plurality of second support frames 63 are fixedly connected to the connecting frame 62, and a pair of second light rods 64 are fixedly connected to the second support frames 63. The plurality of pairs of second light rods 64 correspond one-to-one to and are parallel to the plurality of pulling grooves 21. An auxiliary slider 65 is slidably fitted on a pair of second light rods 64, and a pressure block 66 is fixedly connected to the auxiliary slider 65. The pressure block 66 is used to abut against the bacterial nanocellulose membrane. The plurality of pressure blocks 66 correspond one-to-one to the plurality of adsorption cylinders 41 up and down, and a suction component is arranged between the pressure block 66 and the adsorption cylinder 41.

[0090] The suction assembly includes:

[0091] A first magnet 8, which is fixedly connected to the adsorption cylinder 41;

[0092] The second magnet 9 is fixedly connected to the pressing block 66 , and the second magnet 9 is used to attract the first magnet 8 .

[0093] The connecting frame 62 is pushed by the second cylinder 61 to drive the multiple pressing blocks 66 to move toward the adsorption cylinder 41, so that the multiple pressing blocks 66 press the bacterial nanocellulose membrane, and the first magnet 8 and the second magnet 9 are attracted to each other, so that the pressing blocks and the auxiliary slider 65 can be driven to slide synchronously along the second light rod 64 when the adsorption cylinder 41 moves.

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

[0095] The provision of the spring 67 enables the auxiliary slide block 65 to automatically reset, thereby preventing the pressing block 66 and the adsorption cylinder 41 from being misaligned when not in operation.

[0096] In one embodiment of the present invention, the cutting mechanism 7 comprises:

[0097] The third cylinder 71 is fixedly installed in the installation box 3;

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

[0099] The third cylinder 71 pushes the cutting knife 72 to cut the bacterial nanocellulose membrane. The configuration of the cutting knife 72 can be changed according to the desired product shape. This is the prior art and will not be described in detail here.

[0100] In one embodiment of the present invention, a plurality of pulling through grooves 21 on the support disk 2 are arranged along the central circumference of the support disk 2 .

[0101] The initial position of the adsorption cylinder 41 is at one end of the pulling groove 21 close to the center of the support disk 2. In this way, multiple adsorption cylinders 41 move away from the center of the support disk 2 along the pulling groove 21, forming a diffuse movement, thereby improving the unfolding effect of the bacterial nanocellulose membrane.

[0102] In one embodiment of the present invention, the support plate 2 includes a plurality of spliced ​​bodies 22 , and the plurality of spliced ​​bodies 22 are connected via a plurality of hinges 23 .

[0103] The support plate 2 formed by the plurality of spliced ​​bodies 22 and the plurality of hinged parts 23 can be highly adapted to the circulation mode of the conveyor belt 12 .

[0104] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0105] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A cutting device for producing bacterial nanocellulose membranes, characterized in that: include: Conveying mechanism (1); A plurality of support plates (2) arranged on the conveying mechanism (1), the support plates (2) being used to place bacterial nanocellulose membranes, and the support plates (2) being provided with a plurality of pulling grooves (21); The installation box (3) is open on both sides, the conveying mechanism (1) passes through the installation box (3), and the installation box (3) is provided with a negative pressure adsorption mechanism (4), a moving mechanism (5), an auxiliary clamping mechanism (6) and a cutting mechanism (7); The negative pressure adsorption mechanism (4) is capable of contacting the bacterial nanocellulose membrane through the plurality of pulling grooves (21); The moving mechanism (5) is used to drive the negative pressure adsorption mechanism (4) to slide along the plurality of pulling grooves (21) so as to unfold the bacterial nanocellulose membrane; The auxiliary clamping mechanism (6) is used to press against one end of the bacterial nanocellulose membrane away from the negative pressure adsorption mechanism (4), and the contact points of the auxiliary clamping mechanism (6) and the negative pressure adsorption mechanism (4) with the bacterial nanocellulose membrane correspond to each other, and when the negative pressure adsorption mechanism (4) slides along the pulling groove (21), the auxiliary clamping mechanism (6) moves synchronously; The cutting mechanism (7) is used for cutting the bacterial nanocellulose membrane.

2. A cutting device for producing bacterial nanocellulose membrane according to claim 1, characterized in that: The conveying mechanism (1) comprises: a pair of driving rollers (11); A pair of conveyor belts (12) are coupled to a pair of driving rollers (11) for transmission, and a plurality of support plates (2) are arranged between the pair of conveyor belts (12).

3. A cutting device for producing bacterial nanocellulose membrane according to claim 1, characterized in that: The negative pressure adsorption mechanism (4) comprises: A plurality of adsorption cylinders (41) corresponding one to one with the plurality of pulling through grooves (21), the adsorption cylinders (41) being used to contact the bacterial nanocellulose membrane, and a piston (42) being slidably fitted inside the adsorption cylinders (41); A first cylinder (43) is fixedly installed in the installation box (3); A connecting disk (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 disk (44). The plurality of telescopic members (45) correspond to and are fixedly connected to the piston rods of the plurality of pistons (42) one by one, and the telescopic members (45) are parallel to the pulling groove (21).

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

5. A cutting device for producing bacterial nanocellulose membrane according to claim 3, characterized in that: The auxiliary clamping mechanism (6) comprises: A second cylinder (61) fixedly mounted in the mounting box (3); A connecting frame (62) is connected to the output end of the second cylinder (61), and a plurality of second support frames (63) are fixedly connected to the connecting frame (62), and a pair of second light rods (64) are fixedly connected to the second support frames (63), and the plurality of pairs of the second light rods (64) correspond one-to-one to and are parallel to the plurality of pulling grooves (21), and an auxiliary slider (65) is slidably matched on a pair of the second light rods (64), and a pressure block (66) is fixedly connected to the auxiliary slider (65), and the pressure block (66) is used to abut against the bacterial nanocellulose membrane, and the plurality of pressure blocks (66) correspond one-to-one to the plurality of adsorption cylinders (41) up and down, and a suction component is arranged between the pressure block (66) and the adsorption cylinder (41).

6. A cutting device for producing bacterial nanocellulose membrane according to claim 5, characterized in that: The suction assembly comprises: A first magnet (8) fixedly connected to the adsorption cylinder (41); A second magnet (9) is fixedly connected to the pressing block (66), and the second magnet (9) is used to attract the first magnet (8).

7. A cutting device for producing bacterial nanocellulose membrane according to claim 5, characterized in that: A spring (67) is fixedly connected between the auxiliary sliding block (65) and the second supporting frame (63).

8. A cutting device for producing bacterial nanocellulose membrane according to claim 1, characterized in that: The cutting mechanism (7) comprises: A third cylinder (71) fixedly mounted in the mounting box (3); 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 membrane.

9. A cutting device for producing bacterial nanocellulose membrane according to claim 1, characterized in that: The plurality of pulling through grooves (21) on the support disk (2) are arranged along the central circumference of the support disk (2).

10. A cutting device for producing bacterial nanocellulose membrane according to claim 1, characterized in that: The support plate (2) comprises a plurality of spliced ​​bodies (22), and the plurality of spliced ​​bodies (22) are connected to each other via a plurality of hinges (23).

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