A device for taking out materials after bacterial nanocellulose film production

Abstract

The present invention provides a post-production bacterial nanocellulose film material removal device, comprising a lifting device and a rotating material removal device, the rotating material removal device is fixedly installed above the lifting device, the rotating material removal device comprises a rotating device and a material removal device, the material removal device is fixedly connected to the rotating device, the material removal device comprises a motor and a material removal rod, the lifting device comprises a base and a push rod motor, the push rod motor is fixedly connected to the base, the base is also provided with a power supply device and a programmable motor controller, the power supply device supplies power to the push rod motor and the programmable motor controller, the programmable motor controller controls the push rod motor, and the push rod motor drives the rotating material removal device to rise and fall to a specified height; the present invention realizes automatic removal of bacterial nanocellulose film after production through the cooperation between the lifting device and the rotating material removal device, thereby greatly improving the material removal efficiency; the present invention sets the bottom surface of the receiving tray to an arc shape to ensure that the bacterial nanocellulose film remains flat after falling into the receiving tray.

Description

Technical Field

[0001] The invention relates to the technical field of bacterial cellulose membranes, in particular to a device for taking out materials after production of bacterial nano cellulose membranes. Background Art

[0002] Cellulose is the most abundant natural biomacromolecule on earth. It is a polymer formed by glucose molecules connected by beta-1,4 glycosidic bonds. Its main source is trees, cotton and other plants, and it is the main product of plant photosynthesis. At present, cellulose from trees and cotton is the main raw material in the papermaking, textile, construction and chemical industries. Every year, plants synthesize hundreds of millions of tons of cellulose on earth, but cellulose synthesis is not a function unique to plants. Some bacteria, such as Acetobacter xylinum, Rhizobium, Agrobacterium and Pseudomonas, can synthesize high-purity nano-cellulose more efficiently in a heterotrophic manner, also known as bacterial cellulose (BC).

[0003] Plant-derived cellulose is usually wrapped by impurities such as lignin and hemicellulose, which makes the extraction and refining of high-purity cellulose a major technical challenge in the industrial field; bacterial cellulose exists in the form of pure cellulose and has a nanofiber network composed of ultrafine fibers. The cellulose diameter is between a few nanometers and tens of nanometers, which is 1 to 2 orders of magnitude lower than the diameter of other plant-derived fibers or artificial synthetic fibers. Bacterial cellulose has the characteristics of high purity, high crystallinity, high mechanical strength and elastic modulus, good water absorption and biocompatibility, and is biodegradable, giving it many unique properties and functions, making it a new type of biomaterial that has received widespread attention from the scientific community. Bacterial cellulose forms a unique woven structure, and due to the "nano effect", it has high water absorption and high water retention, high permeability to liquids and gases, high wet strength, and can be in-situ processed and formed especially in the wet state.

[0004] High purity and excellent performance make bacterial cellulose fiber widely used in special fields; Application in medical materials: Due to good biocompatibility, high mechanical strength in wet state, good liquid and gas permeability and inhibition of skin infection, bacterial cellulose can be used as artificial skin for temporary wound dressing, and has also been widely used as surgical and dental materials; Application in food industry: Due to its strong hydrophilicity, viscosity and stability, bacterial cellulose can be used as food forming agent, thickener, dispersant, anti-dissolving agent, improve the taste as casing and skeleton of certain foods, and has become a new type of important food base and dietary fiber; For example, in traditional fermentation process, pure culture of acetic acid bacteria or mixed culture of acetic acid bacteria and other microorganisms can produce fermented foods rich in cellulose. "Nata de coco" is a dessert made by fermenting acetic acid bacteria and rice flour sugar, which is one of the 30 popular foods in Japan; In addition, bacterial cellulose has wide application potential in food industry, medical beauty, papermaking, acoustic equipment and oil extraction.

[0005] Bacterial nanocellulose membrane is a new product and has been cultivated automatically. However, how to automatically and non-destructively remove bacterial nanocellulose membrane from the incubator is still a technical problem that plagues the industry. Currently, the removal of bacterial nanocellulose membrane mainly relies on manual labor, so there are high requirements for the proficiency of operators and a certain amount of training time is required. This increases the production cost of bacterial nanocellulose membrane and limits production. Currently, there is a lack of a material removal device on the market that can automatically and non-destructively remove bacterial nanocellulose membrane from the incubator. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the above, the purpose of the present invention is to provide a device for removing bacterial nanocellulose membranes after production, which solves the problem that there is currently a lack of a device on the market that can automatically and non-destructively remove bacterial nanocellulose membranes from an incubator.

[0008] (II) Technical solution

[0009] A post-production material collection device for bacterial nanocellulose membranes comprises a lifting device and a rotating material collection device, wherein the rotating material collection device is fixedly mounted above the lifting device, the rotating material collection device comprises a rotating device and a material collection device, the rotating device is fixedly connected to the lifting device, the material collection device is fixedly connected to the rotating device, the material collection device comprises a motor and a material collection rod, and the material collection rod is provided with friction patterns.

[0010] Further optimized, the lifting device includes a base and a push rod motor, the push rod motor is fixedly connected to the base, and the base is also provided with a power supply device and a programmable motor controller, the power supply device supplies power to the push rod motor and the programmable motor controller, the programmable motor controller controls the push rod motor, and the push rod motor drives the rotary material picking device to rise and fall to a specified height.

[0011] Further optimized, the rotating device includes a chassis and a center gear, the center gear is fixedly set on the chassis, the center gear is fixedly connected with a rotating shaft fixing rod, the rotating shaft fixing rod is sleeved with a material picking rod rotating shaft, a motor fixing frame is set in the middle of the rotating shaft of the material picking rod, the motor fixing frame is fixedly connected with a second motor, the second motor is controlled by the programmable motor controller, the rotating shaft of the second motor is connected with a revolving gear, the revolving gear is meshed with the center gear, the programmable motor controller controls the rotation of the second motor, the second motor drives the revolving gear to rotate, the revolving gear makes an orbital motion around the center gear, the rotating shaft of the material picking rod rotates with the rotating shaft fixing rod as the rotating shaft, and the material picking rod rotates following the rotating shaft of the material picking rod.

[0012] Further optimized, a motor 1 is fixed to the upper end of the material picking rod shaft, the motor 1 is connected to the material picking rod, the programmable motor controller controls the motor 1, the motor 1 drives the material picking rod to rotate, and the bacterial nanocellulose film is wound up during the rotation of the material picking rod.

[0013] For further optimization, a support frame is provided on the chassis, and a material receiving tray is fixedly connected to the support frame. When the material picking rod follows the material picking rod rotating shaft and moves above the material receiving tray, the motor 2 stops working under the control of the programmable motor controller. After the motor 2 stops working, the programmable motor controller controls the motor 1 to reverse, and the bacterial nanocellulose film on the material picking rod falls off to the material receiving tray as the material picking rod reverses.

[0014] Further optimized, the chassis is connected to the push rod head of the push rod motor via a fastener.

[0015] For further optimization, the bottom surface of the receiving tray is arc-shaped.

[0016] (III) Beneficial effects

[0017] 1. The present invention realizes automatic removal of bacterial nanocellulose membrane after production through the cooperation between the lifting device and the rotating material taking device, which greatly improves the material taking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a device for taking out materials after the production of bacterial nanocellulose membrane;

[0019] Figure 2 for Figure 1 Partial enlarged view of part A;

[0020] Figure 3 It is a schematic diagram of the structure of a material taking device after production of bacterial nanocellulose membrane when the material is dropped;

[0021] Figure 4 It is a schematic diagram of the material rod structure;

[0022] Figure 5 It is a cross-sectional view of the receiving tray;

[0023] Figure 6 It is a schematic diagram of the structure of the rotating shaft fixing rod;

[0024] Figure 7 This is a schematic diagram of the bottom of the material rod rotating shaft.

[0025] Among them, 10, base; 11, power supply device; 12, push rod motor; 13, programmable motor controller; 20, chassis; 21, center gear; 210, shaft fixing rod; 22, material picking rod shaft; 23, motor fixing frame; 24, motor 2; 25, revolving gear; 26, material picking rod; 27, support frame; 28, material receiving tray; 29, motor 1. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-7 The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0027] like Figure 1 As shown, a device for taking out materials after the production of bacterial nanocellulose membrane includes a lifting device and a rotating material taking device. The lifting device is responsible for the lifting height, and the rotating material taking device is responsible for taking the bacterial nanocellulose membrane. The rotating material taking device is fixedly installed above the lifting device. The rotating material taking device includes a rotating device and a material taking device. The material taking device is fixedly connected to the rotating device.

[0028] like Figure 1As shown, the lifting device includes a base 10 and a push rod motor 12, the push rod motor 12 is fixedly connected to the base 10, and a power supply device 11 and a programmable motor controller 13 are also provided on the base 10; the power supply device 11 supplies power to the push rod motor 12 and the programmable motor controller 13, the programmable motor controller 13 controls the push rod motor 12, and the push rod motor 12 drives the rotary material taking device to rise and fall to a specified height, wherein the specified height is adjusted according to the specific specifications of the incubator, and the specific height is determined by the height of the culture dish in the incubator, so as to allow the rotary material taking device to be at the same height as the culture dish, so as to facilitate material taking; specifically, the programmable motor controller 13 is an integrated circuit that actively controls the motor to work in accordance with the set direction, speed, angle, and response time, so that the motor has a wider range of applications, higher output efficiency, and lower noise; the programmable motor controller 13 can form a complete motor control system with the motor, adopts a computer-style programming language, has multiple instructions such as input, output, and counting, can control multiple motors to operate in time-sharing, has the characteristics of flexible programming and wide adaptability, and can be widely used in various control automation fields.

[0029] like Figure 1 As shown, the use of the push rod motor 12 has many advantages. The push rod motor 12 is an electric drive device that converts the rotational motion of the motor into the linear reciprocating motion of the push rod. It has a novel and exquisite design, a small size, high precision, complete synchronization, good self-locking performance, and hygiene. The motor is directly driven and does not require a pipeline gas source or oil circuit, which is conducive to streamlining the structure of the lifting device; the push rod motor 12 makes a reciprocating motion within a certain range of stroke. Generally, the standard stroke of the push rod motor 12 is 100, 150, 200, 250, 300, 350, and 400 mm. Special strokes can also be customized according to different application conditions. The push rod motor 12 can be designed with different thrusts according to different application loads. Generally, its maximum thrust can reach 6000N, and the no-load running speed is 4mm~35mm / s. The push rod motor 12 uses a 24V / 12V DC permanent magnet motor as a power source to convert the rotational motion of the motor into linear reciprocating motion.

[0030] like Figure 1 and Figure 2 As shown, the rotating device includes a chassis 20 and a central gear 21, and the central gear 21 is fixedly arranged on the chassis 20. Figure 6As shown, the central gear 21 is fixedly connected with a rotating shaft fixing rod 210, and the rotating shaft fixing rod 210 is sleeved with a material picking rod rotating shaft 22. A motor fixing frame 23 is arranged in the middle of the material picking rod rotating shaft 22, and a second motor 24 is fixedly connected to the motor fixing frame 23. The second motor 24 is controlled by a programmable motor controller 13. The rotating shaft of the second motor 24 is connected with a revolving gear 25, and the revolving gear 25 is meshed with the central gear 21. The programmable motor controller 13 controls the rotation of the second motor 24, and the second motor 24 drives the revolving gear 25 rotates, the revolving gear 25 revolves around the center gear 21, and under the control of the programmable motor controller 13 on the rotation of the motor 24, the revolving gear 25 can only revolve around the center gear 21 by 180° at most to avoid the wire being entangled on 22; the material picking rod shaft 22 rotates with the shaft fixing rod 210 as the shaft, and a material picking rod 26 is arranged on the material picking rod shaft 22, and the material picking rod 26 rotates with the material picking rod shaft 22; the chassis 20 is connected to the push rod head of the push rod motor 12 by fasteners.

[0031] like Figure 3 As shown, a motor 29 is fixed to the upper end of the material rod shaft 22, and the motor 29 is connected to the material rod 26. The programmable motor controller 13 controls the motor 29, and the motor 29 drives the material rod 26 to rotate. During the rotation of the material rod 26, the bacterial nanocellulose film is wound up.

[0032] like Figure 3 and Figure 5 As shown, a support frame 27 is provided on the chassis 20, and a material receiving tray 28 is fixedly connected to the support frame 27. When the material picking rod 26 follows the material picking rod rotating shaft 22 to move above the material receiving tray 28, the motor 24 stops working under the control of the programmable motor controller 13. After the motor 24 stops working, the programmable motor controller 13 controls the motor 1 29 to reverse, and the bacterial nanocellulose film on the material picking rod 26 falls off to the material receiving tray 28 as the material picking rod 26 reverses. The bottom surface of the material receiving tray 28 is an arc shape.

[0033] like Figure 1 and Figure 4 As shown, the feeding rod 26 is provided with friction grooves, which are fine and have a certain depth. The culture fluid can penetrate into the friction grooves through capillary action. When the feeding rod 26 rotates, the culture fluid in the friction grooves and the bacterial nanocellulose membrane produce relative motion, thereby generating a viscous force. The bacterial nanocellulose membrane is rolled up by the feeding rod 26 under the action of the viscous force.

[0034] When in use, the door of the incubator is opened, the post-production material taking device of the bacterial nanocellulose membrane is placed at the door, and the power supply device 11 is started. The power supply device 11 controls the push rod motor 12, and the push rod motor 12 drives the rotary material taking device to rise and fall to a specified height. The specified height here is adjusted according to the specific specifications of the incubator. The specific height is determined by the height of the culture dish in the incubator. The purpose is to allow the rotary material taking device to be at the same height as the culture dish for convenient material taking. The data is stored in the programmable motor controller 13. The power supply device 11 controls and moves the post-production material taking device of the bacterial nanocellulose membrane inward so that the material taking rod 26 is just above the culture dish, i.e., the formed bacterial nanocellulose membrane. Then the programmable motor controller 13 controls the motor 29 to rotate, and the material taking rod 26 rotates. Then the programmable motor controller 13 controls the push rod motor 12 to move downward a stroke, the length of which is determined by the height of the culture dish to ensure that the material taking rod 26 can contact the bacterial nanocellulose membrane; after the material taking rod 26 can contact the bacterial nanocellulose membrane, because the material taking rod 26 is in a rotating state state, and the surface of the material picking rod 26 is also provided with friction lines, so the bacterial nanocellulose film is easily wound on the material picking rod 26; then, the programmable motor controller 13 controls the push rod motor 12 to move up a stroke, the length of which is the same as the length of the last downward stroke. After this stroke, the programmable motor controller 13 controls the motor 24 to rotate, and the motor 24 drives the revolving gear 25 to rotate, and the revolving gear 25 rotates around the central gear 21, and the revolving gear 25 drives the material picking rod shaft 22 to rotate to rotate the material picking rod 26 To the top of the receiving tray 28, the rotation angle here is determined by the position of the receiving tray 28, and the data is input into the programmable motor controller 13 in advance; when the material picking rod 26 rotates to the top of the receiving tray 28, the programmable motor controller 13 then controls the motor 1 29 to reverse, and the reversed motor 1 29 drives the material picking rod 26 to reverse, and the bacterial nanocellulose film falls into the receiving tray 28, and the bottom surface of the receiving tray 28 is designed to be an arc shape, so that the bacterial nanocellulose film will not produce creases, which is beneficial for later application; in this way, the entire material picking process is completed.

[0035] In summary, the above-mentioned embodiments are not limitative embodiments of the present invention, and any modifications or equivalent variations made by those skilled in the art on the basis of the essential contents of the present invention are within the technical scope of the present invention.

Claims

1. A device for taking out materials after bacterial nanocellulose film production, characterized in that: It includes a lifting device and a rotating material taking device, the rotating material taking device is fixedly installed above the lifting device, the rotating material taking device includes a rotating device and a material taking device, the rotating device is fixedly connected to the lifting device, the material taking device is fixedly connected to the rotating device, the material taking device includes a motor 1 and a material taking rod, and the material taking rod is provided with friction lines; The rotating device includes a chassis and a central gear, the central gear is fixedly arranged on the chassis, a rotating shaft fixing rod is fixedly connected to the central gear, a material picking rod rotating shaft is sleeved on the rotating shaft fixing rod, a motor fixing frame is arranged in the middle of the material picking rod rotating shaft, a second motor is fixedly connected to the motor fixing frame, a rotating shaft of the second motor is connected to a revolving gear, and the revolving gear is meshed with the central gear; The motor drives the material taking rod to rotate, and the bacterial nanocellulose film is rolled up during the rotation of the material taking rod; The base is also provided with a power supply device and a programmable motor controller, the chassis is provided with a support frame, the support frame is fixedly connected with a material receiving tray, when the material picking rod follows the material picking rod rotating shaft to move above the material receiving tray, the motor 2 stops working under the control of the programmable motor controller, after the motor 2 stops working, the programmable motor controller controls the motor 1 to reverse, and the bacterial nanocellulose film on the material picking rod falls off to the material receiving tray as the material picking rod reverses; The lifting device includes a base and a push rod motor, the push rod motor is fixedly connected to the base, the power supply device supplies power to the push rod motor and the programmable motor controller, the programmable motor controller controls the push rod motor, and the push rod motor drives the rotary material taking device to rise and fall to a specified height; The second motor is controlled by the programmable motor controller, and the programmable motor controller controls the second motor to rotate, and the second motor drives the revolving gear to rotate, and the revolving gear revolves around the central gear, and the material picking rod rotating shaft rotates with the rotating shaft fixing rod as the rotating shaft, and the material picking rod rotates with the material picking rod rotating shaft; A motor 1 is fixed to the upper end of the material picking rod rotating shaft, the motor 1 is connected to the material picking rod, and the programmable motor controller controls the motor 1; The bottom surface of the material receiving tray is in an arc shape.

2. A device for removing material after bacterial nanocellulose film production according to claim 1, characterized in that: The chassis is connected to the push rod head of the push rod motor through a fastener.

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