Nanocellulose synchronous belt processing technology

Abstract

The invention discloses a processing technology of a nanocellulose synchronous belt, relates to the technical field of fiber synchronous belts, and aims to solve the problem that nanocellulose is composed of cellulose which is a natural polymer and is polysaccharide formed by connecting glucose molecules through beta-1, 4-glucosidic bonds in the application of the nanocellulose synchronous belt nowadays. The glucose molecules are connected with each other through long-chain structures to form a fibrous structure of cellulose. In the nano cellulose, the fibrous structures are processed into nano-sized fine particles, the wear resistance is insufficient due to the particularity of the material, and the material cannot adapt to a high-load, high-speed or inferior environment, and the nano cellulose has higher elongation at break and tensile strength and better toughness and durability, and can be applied to the nano fiber synchronous belt, so that the wear resistance of the nano cellulose synchronous belt is greatly improved, and the service life of the nano cellulose synchronous belt is prolonged. The elastic and durable synchronous transmission device can deal with external challenges, is wider in application scene, and is suitable for synchronous transmission requirements in various mechanical transmission systems.

Description

Technical Field

[0001] The invention relates to the technical field of fiber synchronous belts, and in particular to a processing technology of nano cellulose synchronous belts. Background Art

[0002] Nanocellulose timing belt is a new type of synchronous transmission belt, which is made of nanocellulose material. Nanocellulose is a material with high strength, wear resistance and corrosion resistance, so nanocellulose timing belt has good transmission performance and service life. Nanocellulose timing belt is widely used in the transmission system of various mechanical equipment in industrial production.

[0003] In this regard, the patent document with publication number CN113667257B discloses a modified nanocellulose / polypyrrole composite material and a preparation method thereof, an antistatic rubber composition and a preparation method thereof. The modified nanocellulose / polypyrrole composite material comprises, by weight, 90-110 parts of nanocellulose, 15-25 parts of styrene, 30-50 parts of acrylic acid, 50-70 parts of pyrrole, and 0.4-0.6 parts of an initiator; the modified nanocellulose / polypyrrole composite material is added to a rubber composition to prepare an antistatic rubber composition; styrene and acrylic acid are used to modify the nanocellulose so that it is uniformly dispersed in a rubber matrix; hydrogen bonds are formed between polypyrrole and nanocellulose, and a multi-level cross-linked network structure is formed in the rubber matrix with the nanocellulose to form a conductive path, thereby improving the conductive performance of the rubber composition; a tire produced from the rubber composition can well conduct static electricity generated during the tire's running, thereby improving the antistatic performance of the rubber tire.

[0004] Nowadays, nanocellulose synchronous belts are in use. Nanocellulose is composed of cellulose, a natural polymer, and is a polysaccharide formed by glucose molecules connected by β-1,4-glycosidic bonds. These glucose molecules are connected to each other through long chain structures to form the fibrous structure of cellulose. In nanocellulose, these fibrous structures are processed into nano-sized fine particles. Due to the special nature of the material, the wear resistance is insufficient and it cannot adapt to high loads, high speeds or harsh environments.

[0005] In view of the above problems, a nanocellulose synchronous belt processing technology is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a nanocellulose synchronous belt processing technology, which solves the problem of poor wear resistance of the synchronous belt in the background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: a nanocellulose synchronous belt processing process, wherein the nanocellulose synchronous belt comprises, by weight, 60-65 parts of nanocellulose, 20-25 parts of polyurethane, 10 parts of polyester, 3 parts of calcium carbonate filler, and 2 parts of polytetrafluoroethylene;

[0008] Mixing: put the raw materials weighed in equal proportion into the mixing equipment, control the mixing temperature, set the temperature to 50℃-80℃, and set the mixing time to 30min-60min;

[0009] Extrusion: the mixed material is fed into the extruder, the extruder outlet temperature is set at 120°C-150°C, and the extrusion speed is 7m / min;

[0010] Coating, synchronous belt surface coating, coating temperature 100℃-140℃, coating speed 3m / min-5m / min, coating thickness 50um-75um, cooling and solidification after coating.

[0011] A nanocellulose synchronous belt processing mixing device, the mixing device comprises a fixed frame, a spindle motor is installed at one left end of the fixed frame, a mixing assembly is installed in the middle position of the fixed frame, a support seat is installed in the middle position of the fixed frame, a mixing tube is embedded in the interior of the support seat, the mixing tube and the fixed frame are fixedly connected, a feeding port is provided at the top end of the support seat, a feeding port is provided at the top end of the mixing tube, the feeding port and the feeding port both play the role of putting in raw materials, and the bottom end of the mixing tube is connected to a discharge port, and the discharge port is used to discharge the mixed raw materials.

[0012] Preferably, an inner insert cylinder is fixedly connected to one side of the fixed frame, the interior of the inner insert cylinder is hollow, and a spiral blade is fixedly connected to the output end of the spindle motor. The spiral blade extends through the interior of the positioning tube to the interior of the inner insert cylinder, and the spiral blade rotates inside the inner insert cylinder, rotating and conveying the raw material from left to right, and a hole groove is opened at the bottom end of the inner insert cylinder at the rightmost end.

[0013] Preferably, the outer surface of the inner insert cylinder is fixedly connected with a positioning tube, one end of the positioning tube is connected with a connecting sleeve, one end of the connecting sleeve is connected with a rotating cylinder, the outer surface of the rotating cylinder is fixedly connected with a gear ring, the gear ring is arranged on the side of the connecting sleeve close to the rotating cylinder, the connecting sleeve and the rotating cylinder are rotatably connected, and the inner insert cylinder passes through the interior of the positioning tube, the connecting sleeve and the rotating cylinder.

[0014] Preferably, the output end of the spindle motor is connected to a timing belt, and a transmission rod is embedded in the interior of the fixed frame. One end of the transmission rod is connected to the timing belt, and the other end is meshed with a gear ring. The output end of the spindle motor drives the timing belt to rotate, thereby driving the transmission rod to rotate. The meshing of the transmission rod and the gear ring drives the rotating drum to rotate.

[0015] Preferably, the outer surface of the drum is provided with lines opposite to the spiral of the spiral blades, and the rotation of the drum pushes the raw materials to move from right to left until they are transported to the inside of the discharge port, and then transported to the extruder through the discharge port.

[0016] Preferably, a processing component is fixedly connected to the interior of the mixing tube, a wrapping sheet is fixedly connected to the interior of the mixing tube, a spiral tube is arranged on the inner side of the wrapping sheet, the wrapping sheet and the spiral tube are wrapped around the interior of the rotating drum, an inlet is opened on the right side of the spiral tube, a through groove matching the inlet is opened on the right side of the wrapping sheet, and the inlet is arranged at the lowest point of the spiral tube.

[0017] Preferably, the outer surface of the support seat is fixedly connected to a shell, and a support roller and a pressure roller are embedded in the interior of the shell. The support roller and the pressure roller are rotatably connected to the interior of the shell along an axis, and the support roller is connected to the output end of the drive motor, and the support roller is controlled to rotate by the drive motor.

[0018] Preferably, a draw rope is embedded in the spiral tube, and traction plates are installed at intervals on the outer surface of the draw rope. The draw rope and the traction plates penetrate the interior of the shell and are arranged between the pressure roller and the support roller.

[0019] Preferably, the spiral tube is a spiral tube structure supported by copper, and the spiral tube is connected to a heating device, and heat is transferred to the spiral tube through the heating device.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention provides a nanocellulose synchronous belt processing technology, which helps to improve the elongation at break and make the material more ductile by adjusting the proportion of polyurethane materials and increasing the proportion of elastomeric polyurethane. Secondly, the hardness and elasticity of the material are adjusted to reduce the friction with other components, making it more adaptable to specific application needs. After improvement, the additives in the formula are adjusted to improve the lubricity of the synchronous belt, and have better toughness and durability. In the application of nanofiber synchronous belts, it can be more flexible and durable when responding to external challenges, and has a wider range of application scenarios, suitable for synchronous transmission needs in various mechanical transmission systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the support seat and the mixing tube of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the positioning tube and the connection sleeve of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the inner insert cylinder and the spiral blade of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the positioning tube and the gear ring of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the positioning tube and the rotating drum of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the wrapping sheet and the spiral tube of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the spiral tube and the introduction port of the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the housing and the pull rope of the present invention.

[0031] In the figure: 11, fixed frame; 12, spindle motor; 13, feeding port; 14, feeding port; 15, discharging port; 2, mixing component; 21, supporting seat; 22, mixing tube; 23, positioning tube; 24, connecting sleeve; 25, gear ring; 26, rotating drum; 27, inner insert cylinder; 28, spiral blade; 29, transmission rod; 3, processing component; 31, wrapping sheet; 32, spiral tube; 33, shell; 34, supporting roller; 35, pressure roller; 36, pull rope; 37, traction sheet; 38, introduction port. DETAILED DESCRIPTION

[0032] 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.

[0033] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0034] Experiment 1:

[0035] A nanocellulose synchronous belt processing process, the nanocellulose synchronous belt, by weight, comprises 65 parts of nanocellulose, 20 parts of polyurethane, 10 parts of polyester, 3 parts of calcium carbonate filler, and 2 parts of polytetrafluoroethylene;

[0036] Mixing: put the raw materials weighed in equal proportion into the mixing equipment, control the mixing temperature, set the temperature to 50°C, and set the mixing time to 30 minutes;

[0037] Extrusion: the mixed material is fed into the extruder, the extruder outlet temperature is set at 120°C, and the extrusion speed is 7m / min;

[0038] Coating, synchronous belt surface coating, coating temperature 100℃, coating speed 3m / min, coating thickness 50um, cooling and solidification after coating.

[0039] Experiment 2:

[0040] A nanocellulose synchronous belt processing process, the nanocellulose synchronous belt, by weight, comprises 60 parts of nanocellulose, 25 parts of polyurethane, 10 parts of polyester, 3 parts of calcium carbonate filler, and 2 parts of polytetrafluoroethylene;

[0041] Mixing: put the raw materials weighed in equal proportion into the mixing equipment, control the mixing temperature, set the temperature to 80°C, and set the mixing time to 60 minutes;

[0042] Extrusion: the mixed material is fed into the extruder, the extruder outlet temperature is set at 150°C, and the extrusion speed is 7m / min;

[0043] Coating, synchronous belt surface coating, coating temperature 140℃, coating speed 5m / min, coating thickness 75um, cooling and solidification after coating.

[0044] The raw material formula of nano timing belt provided in Experiment 1-2 is as follows:

[0045]

[0046] Experiment 1-2 wear test data:

[0047]

[0048] Experiment 1-2 Tensile strength test experimental data:

[0049]

[0050] This process utilizes the properties of materials such as nanocellulose, polyurethane, polyester, calcium carbonate filler and polytetrafluoroethylene. Through mixing, extrusion and coating, a nanocellulose synchronous belt with certain strength and durability is prepared. The quality and performance of the synchronous belt are changed by controlling parameters such as mixing temperature, mixing time, extrusion port temperature, extrusion speed, coating temperature, coating speed and coating thickness.

[0051] In the above experiment, the wear tester can simulate the wear of the synchronous belt in actual use, and synchronous belt test samples of a certain size and shape are cut to ensure the consistency and representativeness of the samples. The initial mass of each test sample is accurately measured using a high-precision balance and recorded.

[0052] Testing process:

[0053] Install the test sample on the wear tester, set the friction speed to simulate the actual running speed of the synchronous belt, the pressure to the pressure that the synchronous belt bears during normal operation, set the friction stroke to 5000 reciprocating movements, start the wear tester, and let the test sample perform the wear test under the set conditions until the set number of friction strokes is reached. After the wear test is completed, remove the test sample, use a high-precision balance to measure its mass again, and calculate the mass loss value. The formula is: mass loss value = (initial mass - mass after test) / initial mass × 100%. Record the mass loss value of each test sample as the wear test experimental data.

[0054] In addition, in the tensile strength test experiment, the universal material testing machine can accurately apply tensile force and measure the stress and strain of the material during the stretching process;

[0055] Cut the synchronous belt test samples separately, ensure that the size and shape of the samples meet the standard specifications to ensure the accuracy of the test results, install the tensile test samples on the fixture of the universal material testing machine, ensure that the fixture clamps the samples to avoid slipping or loosening during the test, set different tensile stress values ​​on the universal material testing machine, the tensile stress values ​​include 20 MPa, 25 MPa, and 28 MPa, start the universal material testing machine, and apply tension at a slow and uniform speed until the test sample breaks or reaches the set maximum strain value. During the test, the universal material testing machine automatically records the elongation of the test sample under different tensile stresses, and calculates the elongation based on the original size of the sample. The elongation calculation formula is: elongation = (length at break - original length) / original length × 100%, and record the elongation of each test sample under different tensile stresses as the tensile strength test experimental data.

[0056] The experimental material intercepted in Experiment 1 has a mass loss value of 1.5% after 5000 friction strokes under the set wear test conditions, indicating that the synchronous belt has certain wear resistance, but the wear resistance is insufficient. Under different tensile stresses, such as 20 MPa, the elongation is 120%, 25 MPa, and 28 MPa, the elongation is 150%, and the elongation is 168%. It shows that with the increase of tensile stress, the elongation of the synchronous belt gradually increases, and the comprehensive tensile strength is low.

[0057] Under the same wear resistance test conditions, the experimental material cut from Experiment 2 had a mass loss value of 1% after 5000 friction strokes. Compared with the experimental material in Experiment 1, the mass loss was smaller, indicating that the experimental material in Experiment 2 had better wear resistance.

[0058] In the tensile strength test, under different tensile stresses, the elongation is 130% at 20 MPa, 162.5% at 25 MPa, and 182% at 28 MPa. With the increase of tensile stress, the elongation of the synchronous belt gradually increases, and compared with the experimental material in Experiment 1, the elongation under the same stress is higher, indicating that the tensile strength of the experimental material in Experiment 2 is better.

[0059] In general, the wear resistance and tensile strength of the experimental material in Experiment 2 are superior to those of the wear-resistant material in Experiment 1. This is related to the relatively low content of nanocellulose and the relatively high content of polyurethane in the experimental material of Experiment 2. This formula adjustment may help to improve the overall performance of the synchronous belt.

[0060] The synchronous belt produced by this process has good lubricity, wear resistance and durability, and is suitable for synchronous transmission needs in various mechanical transmission systems.

[0061] Combination Figure 1-Figure 9 A nanocellulose synchronous belt processing and mixing device comprises a fixed frame 11, a spindle motor 12 is installed at one end of the left side of the fixed frame 11, a mixing assembly 2 is installed in the middle of the fixed frame 11, a support seat 21 is installed in the middle of the fixed frame 11, a mixing tube 22 is embedded in the support seat 21, the mixing tube 22 and the fixed frame 11 are fixedly connected, a feeding port 13 is opened at the top of the support seat 21, and a feeding port 14 is opened at the top of the mixing tube 22, and the feeding port 13 and the feeding port 14 both serve to put in raw materials. The bottom end of the mixing tube 22 is connected with a discharge port 15, and the discharge port 15 is used to discharge the mixed raw materials. An inner insert tube 27 is fixedly connected to one side of the fixed frame 11. The inner insert tube 27 is hollow. The output end of the spindle motor 12 is fixedly connected with a spiral blade 28. The spiral blade 28 penetrates the interior of the positioning tube 23 and extends to the interior of the inner insert tube 27. The spiral blade 28 rotates inside the inner insert tube 27, and the rotating conveying raw materials are pushed from left to right. A hole groove is opened at the bottom of the rightmost end of the inner insert tube 27;

[0062] In the processing of the synchronous belt, the raw materials are mixed in a certain proportion, and after mixing, the granular raw materials are heated to a molten state, and then the raw materials of different materials are mixed. The specific operations are as follows:

[0063] First, the spindle motor 12 is started, and the rotation of the output end of the spindle motor 12 drives the spiral blade 28 to rotate, and the raw materials are transported by the rotation of the spiral blade 28. In the input of raw materials, different types of raw materials are input through the feed port 13 and the feed port 14. The raw materials input through the feed port 13 will fall into the interior of the positioning tube 23. When the raw materials fall into the interior of the positioning tube 23, because the spiral blade 28 is located inside the positioning tube 23, the rotation of the spiral blade 28 can push the raw materials that fall into the positioning tube 23, and push the raw materials into the interior of the inner insert tube 27. Finally, the raw materials will pass through The raw materials fall out through the opening at the end of the inner insert cylinder 27. During the process of the raw materials passing through the inner insert cylinder 27, the raw materials are stirred by the spiral blades 28 and heated by the heating component inside the inner insert cylinder 27. The granular raw materials are heated to a molten state to facilitate mixing of the raw materials. The overall strength and wear resistance of the synchronous belt can be improved through sufficient mixing. If the mixing is insufficient, the strength and toughness of various parts of the synchronous belt will be different due to the different characteristics of each material. In order to avoid this problem, it is very necessary to fully mix and improve the raw materials of the synchronous belt.

[0064] The outer surface of the inner insert tube 27 is fixedly sleeved with a positioning tube 23, one end of the positioning tube 23 is connected to a connecting sleeve 24, one end of the connecting sleeve 24 is connected to a rotating cylinder 26, and the outer surface of the rotating cylinder 26 is fixedly connected with a gear ring 25, which is arranged on a side of the connecting sleeve 24 close to the rotating cylinder 26, and the connecting sleeve 24 and the rotating cylinder 26 are rotatably connected, and the inner insert tube 27 passes through the interior of the positioning tube 23, the connecting sleeve 24 and the rotating cylinder 26;

[0065] When mixing the raw materials, the raw materials are not only transported in a directional manner by the rotation of the spiral blade 28, but also transported in the opposite direction by the rotation of the drum 26, so that the raw materials can be continuously mixed in a relatively long space;

[0066] The specific operations are as follows:

[0067] While the main shaft motor 12 drives the spiral blade 28 to rotate, the timing belt at the conveying end of the main shaft motor 12 also drives the transmission rod 29 to rotate. When the transmission rod 29 rotates, it drives the gear ring 25 meshing with it to rotate. After the gear ring 25 rotates, it drives the rotating drum 26 to rotate. Because the spiral pattern on the rotating drum 26 is opposite to the spiral blade 28, the conveying direction of the raw material is opposite to that of the spiral blade 28.

[0068] After the raw materials are transported out of the inner insert tube 27 by the spiral blades 28, the raw materials will fall into the interior of the mixing tube 22. The raw materials that fall into the mixing tube 22 will be pushed by the rotating drum 26. As the rotating drum 26 rotates, the raw materials are transported and finally discharged through the discharge port 15.

[0069] The output end of the spindle motor 12 is connected to a timing belt, and a transmission rod 29 is embedded in the interior of the fixed frame 11. One end of the transmission rod 29 is connected to the timing belt, and the other end is meshed with the gear ring 25. The output end of the spindle motor 12 drives the timing belt to rotate and drives the transmission rod 29 to rotate. The transmission rod 29 and the gear ring 25 are meshed to drive the rotating drum 26 to rotate.

[0070] The outer surface of the drum 26 is provided with a pattern opposite to the spiral of the spiral blade 28. The drum 26 rotates to push the raw material from right to left until it is transported to the inside of the discharge port 15, and then transported to the extruder through the discharge port 15;

[0071] In addition, a feeding port 13 and an inlet port 14 are provided, and different positions for placing raw materials are also different. When some raw materials need to be heated for a long time, they need to be put into the inside of the feeding port 13. The raw materials put into the inside of the feeding port 13 need to pass through the positioning tube 23, the inner insert tube 27, and the mixing tube 22 to reach the inside of the discharge port 15. This process is long. Other raw materials should not be heated for too long. Therefore, the materials are added through the feeding port 14. After being added, they directly fall into the inside of the mixing tube 22, and then are directly transported to the inside of the discharge port 15 through the mixing tube 22. The stroke is short. Different raw materials can be added conveniently through the two input ports, and the operation is more convenient.

[0072] During the heating process of the raw materials, some of the granular raw materials cannot be completely melted. When these granular materials cannot be melted, if they are directly coated on the synchronous belt, pits and bumps of varying degrees will appear on the surface of the synchronous belt. Therefore, the processing component 3 is set to solve this problem:

[0073] The processing assembly 3 is fixedly connected to the interior of the mixing tube 22, and a wrapping sheet 31 is fixedly connected to the interior of the mixing tube 22. A spiral tube 32 is arranged inside the wrapping sheet 31. The wrapping sheet 31 and the spiral tube 32 are wrapped inside the drum 26. An introduction port 38 is opened on the right side of the spiral tube 32. A through groove matching the introduction port 38 is opened on the right side of the wrapping sheet 31. The introduction port 38 is arranged at the lowest point of the spiral tube 32.

[0074] The outer surface of the support seat 21 is fixedly connected with a shell 33, and a support roller 34 and a pressure roller 35 are embedded in the shell 33. The support roller 34 and the pressure roller 35 are connected to the inside of the shell 33 along the axis, and the support roller 34 is connected to the output end of the driving motor, and the support roller 34 is controlled by the driving motor to rotate; a pull rope 36 is embedded in the spiral tube 32, and a traction sheet 37 is installed at intervals on the outer surface of the pull rope 36. The pull rope 36 and the traction sheet 37 pass through the inside of the shell 33 and are arranged between the pressure roller 35 and the support roller 34. The spiral tube 32 is a spiral tube structure supported by copper. The spiral tube 32 is connected to a heating device, and heat is transferred to the spiral tube 32 through the heating device;

[0075] When the material has particles, the overall mass of the particles is large and will be multiplied at the bottom of the mixing tube 22. At this time, as the drum 26 is advanced, the raw material mixture with particles will be introduced from the inlet 38 into the interior of the spiral tube 32. As another set of motors drives the support rollers 34 to rotate, when the support rollers 34 rotate, they will drive the pull rope 36 to move. This is mainly because the pull rope 36 is embedded between the support rollers 34 and the pressure rollers 35. The rotation of the support rollers 34 will push one side of the pull rope 36 to move. When the pull rope 36 moves inside the spiral tube 32, the traction sheet 37 also follows the movement. When the traction sheet 37 is embedded in the interior of the spiral tube 32, the traction sheet 37 The sheet 37 is attached to the inner wall of the spiral tube 32. At this time, the traction sheet 37 will follow the movement of the pull rope 32 to push the raw material, pushing the raw material inside the spiral tube 32 to flow out from the other end, so that the raw material with particles can circulate inside the spiral tube 32, and the raw material can be better heated by the heating energy of the spiral tube 32. In other words, the pull rope 36 is pushed by the support roller 34, so that the traction sheet 37 on the pull rope 36 continuously scrapes and pushes the raw material inside the spiral tube 32 from one end to the other end. In this way, the raw materials can be mixed more fully and the quality of the produced nanofiber synchronous belt is also better.

[0076] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0077] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nanocellulose synchronous belt processing process, characterized in that: The nanocellulose synchronous belt comprises, by weight, 60-65 parts of nanocellulose, 20-25 parts of polyurethane, 10 parts of polyester, 3 parts of calcium carbonate filler, and 2 parts of polytetrafluoroethylene; Mixing: put the raw materials weighed in equal proportion into the mixing equipment, control the mixing temperature, set the temperature to 50℃-80℃, and set the mixing time to 30min-60min; Extrusion: the mixed material is fed into the extruder, the extruder outlet temperature is set at 120°C-150°C, and the extrusion speed is 7m / min; Coating, synchronous belt surface coating, coating temperature 100℃-140℃, coating speed 3m / min-5m / min, coating thickness 50um-75um, cooling and curing after coating; During the mixing process, the raw materials are put into the mixing device, which comprises a fixed frame (11), a spindle motor (12) is installed at one end of the left side of the fixed frame (11), a mixing assembly (2) is installed in the middle position of the fixed frame (11), a support seat (21) is installed in the middle position of the fixed frame (11), a mixing tube (22) is embedded in the support seat (21), the mixing tube (22) and the fixed frame (11) are fixedly connected, a feeding port (13) is provided at the top end of the support seat (21), a feeding port (14) is provided at the top end of the mixing tube (22), the feeding port (13) and the feeding port (14) both play the role of putting in the raw materials, and the bottom end of the mixing tube (22) is connected to a discharge port (15), and the discharge port (15) is used to discharge the mixed raw materials.

2. A nanocellulose synchronous belt processing and mixing device according to claim 1, characterized in that: An inner insert cylinder (27) is fixedly connected to one side of the fixed frame (11), and the interior of the inner insert cylinder (27) is hollow. A spiral blade (28) is fixedly connected to the output end of the spindle motor (12), and the spiral blade (28) penetrates the interior of the positioning tube (23) and extends to the interior of the inner insert cylinder (27). The spiral blade (28) rotates inside the inner insert cylinder (27), and the rotating conveying material is pushed from left to right, and a hole groove is opened at the bottom end of the inner insert cylinder (27) at the rightmost end.

3. A nanocellulose synchronous belt processing and mixing device according to claim 2, characterized in that: The outer surface of the inner insert tube (27) is fixedly sleeved with a positioning tube (23), one end of the positioning tube (23) is connected to a connecting sleeve (24), one end of the connecting sleeve (24) is connected to a rotating cylinder (26), the outer surface of the rotating cylinder (26) is fixedly connected with a gear ring (25), the gear ring (25) is arranged on a side of the connecting sleeve (24) close to the rotating cylinder (26), the connecting sleeve (24) and the rotating cylinder (26) are rotatably connected, and the inner insert tube (27) passes through the interior of the positioning tube (23), the connecting sleeve (24) and the rotating cylinder (26).

4. A nanocellulose synchronous belt processing and mixing device according to claim 3, characterized in that: The output end of the spindle motor (12) is connected to a timing belt, and a transmission rod (29) is embedded in the interior of the fixed frame (11). One end of the transmission rod (29) is connected to the timing belt, and the other end is meshed with the gear ring (25). The output end of the spindle motor (12) drives the timing belt to rotate and drives the transmission rod (29) to rotate. The transmission rod (29) and the gear ring (25) are meshed to drive the rotating drum (26) to rotate.

5. A nanocellulose synchronous belt processing and mixing device according to claim 4, characterized in that: The outer surface of the rotating drum (26) is provided with a spiral pattern opposite to that of the spiral blade (28). The rotating drum (26) rotates to push the raw material from right to left until it is transported to the inside of the discharge port (15) and then transported to the extruder through the discharge port (15).

6. The nanocellulose synchronous belt processing and mixing device according to claim 1, characterized in that: The interior of the mixing tube (22) is fixedly connected to a processing assembly (3), the interior of the mixing tube (22) is fixedly connected to a wrapping sheet (31), a spiral tube (32) is arranged on the inner side of the wrapping sheet (31), the wrapping sheet (31) and the spiral tube (32) are wrapped inside the rotating drum (26), an introduction port (38) is opened on the right side of the spiral tube (32), a through groove matching the introduction port (38) is opened on the right side of the wrapping sheet (31), and the introduction port (38) is arranged at the lowest point of the spiral tube (32).

7. A nanocellulose synchronous belt processing and mixing device according to claim 6, characterized in that: The outer surface of the support seat (21) is fixedly connected with a shell (33), and a support roller (34) and a pressure roller (35) are embedded in the shell (33). The support roller (34) and the pressure roller (35) are rotatably connected inside the shell (33) along an axis, and the support roller (34) is connected to the output end of a driving motor, and the support roller (34) is controlled to rotate by the driving motor.

8. The nanocellulose synchronous belt processing and mixing device according to claim 7, characterized in that: A pull rope (36) is embedded in the spiral tube (32), and a traction sheet (37) is installed at intervals on the outer surface of the pull rope (36). The pull rope (36) and the traction sheet (37) pass through the interior of the shell (33) and are arranged between the pressure roller (35) and the support roller (34).

9. A nanocellulose synchronous belt processing and mixing device according to claim 8, characterized in that: The spiral tube (32) is a spiral tube structure supported by copper. The spiral tube (32) is connected to a heating device, and heat is transferred to the spiral tube (32) through the heating device.

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