Adhesive production equipment and adhesive preparation methods

Abstract

This application provides an adhesive production equipment and a method for preparing an adhesive. The production equipment includes: a reaction device; a stirring device located downstream of the reaction device; a kneading device located downstream of the stirring device; each of the kneading device, reaction device, and stirring device includes a receiving cavity and a stirring mechanism located within the receiving cavity; a filtration device, which includes an inlet, a heating unit, and a filtration assembly; the inlet is connected to the lower end of the reaction device, the lower end of the stirring device, the lower end of the kneading device, and the lower end of the rolling device; a rolling device located downstream of the kneading device; and an automatic cutting device for automatically cutting and packaging the adhesive. This application provides a highly integrated adhesive production system that can improve the uniformity of high-viscosity adhesives and reduce impurity and solvent content.

Description

Technical Field

[0001] This application belongs to the technical field of adhesive production equipment, specifically relating to an adhesive production equipment and a method for preparing adhesives. Background Technology

[0002] The performance of adhesives depends not only on their chemical composition but also significantly on their manufacturing process, which is closely linked to the design of production equipment. This is especially true for high-viscosity adhesives (greater than 10,000 cP). These adhesives exhibit greater rheological complexity and more intricate formulations, often containing large amounts of solid fillers and thickeners. During transport and transfer, they are highly susceptible to stratification or precipitation, resulting in significantly lower stability compared to conventional low-viscosity adhesives. Furthermore, their high viscosity makes thorough mixing of raw materials difficult, and the ineffective removal of solvents and impurities during production can lead to excessive residual solvents and impurities in the product. This not only affects adhesive performance but also increases health and environmental risks. Summary of the Invention

[0003] This application provides an adhesive production equipment and an adhesive preparation method, which can improve the uniformity of the adhesive and reduce the impurity content and solvent content of the adhesive, and is especially suitable for producing high-quality, high-viscosity adhesive products.

[0004] The first aspect of this application provides an adhesive production apparatus, comprising:

[0005] A reaction apparatus is used to react reactants to obtain preliminary reactants.

[0006] A stirring device, located downstream of the reaction apparatus, is used to stir the initial reactants to ensure a thorough reaction and obtain secondary reactants.

[0007] A kneading device is located downstream of the stirring device and is used to stir the secondary reactants; the kneading device, the reaction device, and the stirring device all include a receiving cavity and a stirring mechanism located within the receiving cavity.

[0008] The filtration device includes an inlet, a heating unit, and a filtration assembly; the inlet is connected to the lower end of the reaction device, the lower end of the stirring device, the lower end of the kneading device, and the lower end of the rolling device, respectively; it is used to remove impurities and recover solvents during the production process.

[0009] The roller pressing device is located downstream of the kneading device and is used to press the material fed into the roller pressing device from the kneading device.

[0010] An automatic cutting device, connected to a roller pressing device, is used for the automatic cutting and packaging of adhesives.

[0011] In a feasible embodiment of the first aspect of this application, the filtration device is provided with an output port connected to the reaction device, which is used to input the solvent recovered by the filtration device into the reaction device to achieve recycling.

[0012] In a feasible embodiment of the first aspect of this application, the filter assembly includes a first filter unit, a second filter unit, and a third filter unit in a direction away from the inlet of the filter device. The pore size of the filter pores of the first filter unit is larger than that of the filter pores of the second filter unit, which is larger than that of the filter pores of the third filter unit. The first filter unit, the second filter unit, and the third filter unit are all provided with an outlet for collecting the material trapped by the filter unit.

[0013] In a feasible embodiment of the first aspect of this application, the filtration device further includes an automatic sludge scraping component and a mass sensor. The automatic sludge scraping component is disposed on the inner wall of the filtration device, and the mass sensor is connected to the first filtration unit, the second filtration unit, and the third filtration unit to monitor the mass of the material trapped by the filtration unit. When the mass sensor detects that the mass change rate of the material trapped on the filtration unit is less than 5% within 5 minutes, the automatic sludge scraping component scrapes off the material trapped by the corresponding filtration unit.

[0014] In a feasible embodiment of the first aspect of this application, the stirring mechanism in the stirring device includes a first rotating shaft and a first propeller connected to the first rotating shaft, and a second rotating shaft and a second propeller connected to the second rotating shaft; the driving device drives the first propeller and the second propeller to rotate in opposite directions.

[0015] In a feasible embodiment of the first aspect of this application, the roller pressing device includes at least three sets of pressing units arranged along a first direction. Each of the three sets of pressing units includes a first rotating roller and a first pressing roller located outside the first rotating roller, a second rotating roller and a second pressing roller located outside the second rotating roller; the outer sides of the first pressing roller and the second pressing roller are provided with threads in opposite directions of rotation.

[0016] The distance between the first and second rolling rollers in the two sets of rolling units near the kneading device is greater than the distance between the first and second rolling rollers in the two sets of rolling units near the automatic cutting device.

[0017] In a feasible embodiment of the first aspect of this application, the distance between the first and second rolling rollers in the two sets of rolling units near the kneading device is 2mm to 3mm; the distance between the first and second rolling rollers in the two sets of rolling units near the automatic cutting device is 0.3mm to 0.8mm.

[0018] The two sets of rolling units near the kneading device roll the adhesive at a pressure of 300 N / cm. 2 ~500N / cm 2The pressure applied to the adhesive by the rolling unit near the automatic cutting device is 50 N / cm. 2 ~200N / cm 2 The speeds of both the first and second rolling rollers are less than 1 m / min.

[0019] In a feasible embodiment of the first aspect of this application, the adhesive production equipment further includes a heating device and a feeding device, with the heating device disposed on the outer wall of the receiving cavity of the reaction device; both the feeding device and the reaction device are equipped with temperature sensors and mass sensors; the feeding device, reaction device, heating device, kneading device, filtering device and rolling device are all connected to control electrical appliances.

[0020] In a feasible embodiment of the first aspect of this application, a first solenoid valve is provided between the feeding device and the reaction device; a second solenoid valve is provided between the reaction device and the stirring device, and both the first and second solenoid valves are connected to control electrical appliances; this is used to prevent the adhesive material in the stirring device from flowing back to the reaction device during the production process.

[0021] A second aspect of this application provides a method for preparing an adhesive, comprising:

[0022] The raw materials are mixed in a feeding device and then transported to a reaction device for stirring and reaction to obtain preliminary reactants.

[0023] The reactants are fed into a stirring device for secondary stirring to obtain secondary reactants; the secondary reactants are then fed into a kneading device for stirring to obtain refined secondary reactants; the refined secondary reactants are fed into a rolling device for pressing, and then conveyed to an automatic cutting device for automatic cutting and packaging of the adhesive; wherein, the filtration device is kept in communication with the reaction device, stirring device, kneading device, and rolling device to remove impurities and recover solvents during the preparation process; the viscosity of the adhesive is 10000 cP to 1000000 cP.

[0024] In a feasible embodiment of the second aspect of this application, during the preparation of the reactants, the stirring rate is 20 rpm / min to 100 rpm / min; during the preparation of the secondary reactants, the stirring rate is 150 rpm / min to 300 rpm / min; and during the preparation of the refined secondary reactants, the stirring rate is 20 rpm / min to 100 rpm / min. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of an adhesive production equipment according to some embodiments of this application;

[0026] The components include: 1. feeding device; 2. automatic control system; 3. heating device; 4. reaction device; 5. stirring device; 6. kneading device; 7. roller pressing device; 8. automatic cutting device; and 9. filtering device.

[0027] Figure 2 This is a schematic diagram of the structure of a filtering device according to some embodiments of this application;

[0028] Among them, 9-1 is the automatic sludge scraping component; 9-2 is the first filtration unit; 9-3 is the second filtration unit; 9-4 is the third filtration unit; 9-5 is the output port; 9-6 is the mass sensor; and 9-7 is the output port of the recovered solvent.

[0029] Figure 3 This is a schematic diagram of the structure of a stirring device according to some embodiments of this application;

[0030] Wherein, 5-1 is the first rotating shaft; 5-2 is the first propeller; 5-3 is the second rotating shaft; 5-4 is the second propeller; and 5-5 is the viewing window.

[0031] Figure 4 This is a schematic diagram of the structure of a roller pressing device according to some embodiments of this application;

[0032] Among them, 7-1 is the second pressing roller; 7-2 is the first pressing roller; 7-3 is the first rotating roller; 7-4 is the second rotating roller; 7-5 is a thread; 7-6 is the pressing roller; 7-7 is the conveyor belt speed controller; 7-8 is the rotating roller speed controller; 7-9 is the control panel; and 7-10 is the electrical cabinet. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0035] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0038] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0039] In this application, "multiple" means two or more (including two).

[0040] The foregoing description of this invention is not intended to describe every disclosed embodiment or implementation. Instead, the following description provides more specific examples of exemplary embodiments. Throughout the application, guidance is provided through a series of embodiments that can be used in various combinations. The examples listed are merely representative and should not be construed as exhaustive.

[0041] For high-viscosity adhesives with a viscosity greater than 10,000 cP, the rheological complexity is significant, and the formulation is more complex. They often contain large amounts of solid fillers, thickeners, and other components, making them highly susceptible to stratification or precipitation during transport and transfer, resulting in significantly lower stability compared to conventional low-viscosity adhesives. Furthermore, due to their high viscosity, it is difficult to thoroughly mix raw materials, and solvents and impurities are difficult to remove effectively during production, easily leading to excessive residual solvents and impurities in the product. This not only affects the adhesive's performance but also increases health and environmental risks.

[0042] Most adhesive production systems on the market today use basic equipment combinations, such as feeding devices, reaction vessels, heating and cooling facilities. This not only results in low production efficiency, but also in unsatisfactory uniformity of the adhesive and removal of impurities and solvents, making it difficult to produce high-quality, high-viscosity adhesives.

[0043] In view of this, the inventors have proposed an adhesive production equipment and an adhesive preparation method in this application, which can improve the uniformity of the obtained adhesive and reduce the impurity content and solvent content of the adhesive, and is especially suitable for producing high-quality, high-viscosity adhesive products.

[0044] like Figure 1 As shown, the first aspect of this application provides an adhesive production apparatus, comprising: including:

[0045] A reaction apparatus is used to react reactants to obtain preliminary reactants.

[0046] A stirring device, located downstream of the reaction apparatus, is used to stir the initial reactants to ensure a thorough reaction and obtain secondary reactants.

[0047] A kneading device is located downstream of the stirring device and is used to stir the secondary reactants; the kneading device, the reaction device, and the stirring device all include a receiving cavity and a stirring mechanism located within the receiving cavity.

[0048] The filtration device includes an inlet, a heating unit, and a filtration assembly; the inlet is connected to the lower end of the reaction device, the lower end of the stirring device, the lower end of the kneading device, and the lower end of the rolling device, respectively; it is used to remove impurities and recover solvents during the production process.

[0049] The roller pressing device is located downstream of the kneading device and is used to press the material fed into the roller pressing device from the kneading device.

[0050] An automatic cutting device, connected to a roller pressing device, is used for the automatic cutting and packaging of adhesives.

[0051] This application provides a closed, highly integrated adhesive production system. The material enters the reaction device from the feeding device to carry out a copolymerization reaction. As the reaction proceeds, the viscosity of the product gradually increases, requiring the continuous addition of solvent for dilution and stirring to ensure complete reaction. Even after the reaction stops, the viscosity continues to increase, making it difficult to remove large particles, impurities, and solvents from the adhesive. This easily leads to uneven particle dispersion in the adhesive, inconsistent product consistency and uniformity, high impurity content, and a large amount of solvent residue.

[0052] First, this application provides a stirring device and a kneading device with a stirring mechanism between the reaction device and the rolling device, which increases the secondary stirring. Together with the stirring in the reaction device, a total of three stages of stirring are formed, which can improve the uniformity of the adhesive.

[0053] Secondly, a stirring device with a two-stage agitation is particularly important because for high-viscosity reactive adhesives, the viscosity increases over time. Reaction devices typically operate at a slow speed to ensure complete polymerization of the raw materials, and the fillers are coarsely processed. Kneading devices, primarily designed to refine adhesive particles (reducing particle size), operate at low speed and high shear, offering limited dispersion of fillers in high-viscosity adhesives and minimal improvement in adhesive uniformity. However, by incorporating a two-stage agitation mechanism in both the reaction and kneading devices, the product from the reaction device can undergo high-speed two-stage agitation before entering the kneading device. This improves the dispersibility of fillers and other additives in the adhesive, removes air bubbles that easily become trapped in the system under high viscosity conditions, enhances viscosity uniformity within the adhesive, prevents product stratification or sedimentation during production, improves mixing efficiency, and optimizes material flowability and uniformity.

[0054] Furthermore, due to the high viscosity of adhesives, it is difficult to effectively remove internal impurities and solvents in a single step. The production equipment of this application also includes a filtration device with multiple interfaces that connects and coordinates with other devices. This allows each device to perform filtration simultaneously during the post-processing of the adhesive, achieving multi-stage filtration and helping to remove unreacted components and other impurity particles from the adhesive at each stage, while also removing solvents from the adhesive promptly and effectively. Therefore, through the coordinated arrangement and connection of the various devices in the adhesive production equipment of this application, the uniformity of the adhesive can be improved, and impurity particles and solvents can be removed from the adhesive, resulting in a high-viscosity adhesive product with good uniformity, low impurity content, and low solvent residue.

[0055] Meanwhile, the filtration device can also serve as a recovery device to recycle solvents for secondary use, reducing production costs. In some embodiments, the filtration device includes an output port connected to the reaction apparatus, used to input the solvent recovered by the filtration device into the reaction apparatus, forming a highly integrated circulation system. This achieves high solvent recycling, significantly improving production efficiency and reducing production costs.

[0056] like Figure 2As shown, this application further optimizes the structure of the filtration device. In some embodiments, the filtration assembly includes a first filtration unit, a second filtration unit, and a third filtration unit along the direction away from the inlet of the filtration device. The pore size of the filter holes of the first filtration unit is larger than that of the filter holes of the second filtration unit, which is larger than that of the filter holes of the third filtration unit. The first filtration unit, the second filtration unit, and the third filtration unit are all provided with an outlet for collecting the material trapped by the filtration unit.

[0057] The first filtration unit is used to trap large particles or agglomerates that are not dispersed during the reaction process. The second filtration unit is used to trap high-viscosity impurity solutions. The heating device in the filtration unit can cause impurities to precipitate out. The third filtration unit is used to trap solutions with a viscosity of less than 10,000 cP. This design can more effectively remove large particles and impurities of adhesives during the production process, recover solvents, and make the recovered solvents more pure and easier to use. On the other hand, different substances can be processed in stages through the output ports of different filtration units, which facilitates classified recycling.

[0058] The filtration device also includes an automatic sludge scraping component and a mass sensor. The automatic sludge scraping component is located on the inner wall of the filtration device, and the mass sensor is connected to the first, second, and third filtration units to monitor the mass of the material trapped by the filtration units. When the mass sensor detects that the mass change rate of the material trapped on the filtration unit is less than 5% within 5 minutes, the automatic sludge scraping component scrapes off the material trapped by the corresponding filtration unit.

[0059] like Figure 3 As shown, the double-helix structure in the mixing device can be a pair of relatively rotating double helical shafts to powerfully mix the adhesive. In some embodiments, the mixing mechanism within the mixing device includes a first rotating shaft and a first propeller connected to the first rotating shaft, and a second rotating shaft and a second propeller connected to the second rotating shaft; a driving device drives the first propeller and the second propeller to rotate in opposite directions. The mixing device may also have a viewing window to observe the mixing status of the material.

[0060] like Figure 4 As shown, in some embodiments, the roller pressing device includes at least three sets of pressing units arranged along a first direction. Each of the three sets of pressing units includes a first rotating roller and a first pressing roller located outside the first rotating roller, a second rotating roller and a second pressing roller located outside the second rotating roller; the outer sides of the first pressing roller and the second pressing roller are provided with threads in opposite directions of rotation.

[0061] The distance between the first and second rolling rollers in the two sets of rolling units near the kneading device is greater than the distance between the first and second rolling rollers in the two sets of rolling units near the automatic cutting device.

[0062] The two sets of rolling units near the kneading device apply greater pressure to the adhesive than the rolling unit near the automatic cutting device.

[0063] In some embodiments, the distance between the first and second rolling rollers in the two sets of rolling units near the kneading device is 2mm to 3mm; the distance between the first and second rolling rollers in the two sets of rolling units near the automatic cutting device is 0.3mm to 0.8mm.

[0064] The two sets of rolling units near the kneading device roll the adhesive at a pressure of 300 N / cm. 2 ~500N / cm 2 The pressure applied to the adhesive by the rolling unit near the automatic cutting device is 50 N / cm. 2 ~200N / cm 2 The speeds of both the first and second rolling rollers are less than 1 m / min.

[0065] Conventional roller pressing devices, such as those with a single set of pressing units, can be used to press ordinary or low-viscosity adhesives. However, for high-viscosity adhesives, which have complex compositions and high viscosity, further optimization of the device is required to achieve better results. This application optimizes the aforementioned pressing device, enabling more uniform pressing of high-viscosity adhesives. Furthermore, through differentiated designs between different pressing units and variations in the distance between the pressing rollers, energy consumption can be reduced while maintaining uniform pressing.

[0066] In addition, the inventors of this application have connected the lower end of the roller pressing device to the filtration device, which can further and timely recover the solvent in the roller pressing device and improve the recycling rate.

[0067] In some embodiments, a first solenoid valve is provided between the feeding device and the reaction device; a second solenoid valve is provided between the reaction device and the stirring device to prevent the adhesive material in the stirring device from flowing back to the reaction device during the production process.

[0068] In some embodiments, the adhesive production equipment further includes a heating device and a feeding device, with the heating device disposed on the outer wall of the receiving cavity of the reaction device; both the feeding device and the reaction device are equipped with temperature sensors and mass sensors; the feeding device, reaction device, heating device, kneading device, filtering device, and rolling device are all connected to control electrical components. The first solenoid valve and the second solenoid valve may also both be connected to the control electrical components.

[0069] The mass sensor can be installed inside the metering tank, which is fixed to the bottom of the feeding device and the reaction device by a magnetic snap-fit ​​device. This snap-fit ​​device ensures that the position of the metering tank remains fixed during stirring, and even when the cylinder rotates, its position remains stationary relative to the cylinder, ensuring accurate measurement.

[0070] The entire production system of this application is managed by a control device that connects all key sensors and solenoid valves to achieve automation and precise control. This application can be controlled by a single electrical control unit that collects temperature and mass data of materials in each device, calculates possible viscosity values, and then adjusts the feeding speed, feed rate, stirring speed, and heating temperature accordingly.

[0071] A second aspect of this application provides a method for preparing an adhesive, comprising:

[0072] The raw materials are mixed in a feeding device and then transported to a reaction device for stirring and reaction to obtain preliminary reactants.

[0073] The reactants are fed into a stirring device for secondary stirring to obtain secondary reactants; the secondary reactants are then fed into a kneading device for stirring to obtain refined secondary reactants; the refined secondary reactants are fed into a rolling device for pressing, and then conveyed to an automatic cutting device for automatic cutting and packaging of the adhesive; wherein, the filtration device is kept in communication with the reaction device, stirring device, kneading device, and rolling device to remove impurities and recover solvents during the preparation process; the viscosity of the adhesive is 10000 cP to 1000000 cP.

[0074] In some embodiments, the stirring rate is 20 rpm / min to 100 rpm / min during the preparation of the reactants; the stirring rate is 150 rpm / min to 300 rpm / min during the preparation of the secondary reactants; and the stirring rate is 20 rpm / min to 100 rpm / min during the preparation of the refined secondary reactants.

[0075] The above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the implementation of the present invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively describe all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An adhesive production equipment, characterized in that, include: A reaction apparatus is used to react reactants to obtain preliminary reactants. A stirring device, located downstream of the reaction device, is used to stir the initial reactants to ensure a thorough reaction and obtain secondary reactants. The stirring device includes a stirring mechanism, which includes a first rotating shaft and a first propeller connected to the first rotating shaft, and a second rotating shaft and a second propeller connected to the second rotating shaft. A driving device drives the first propeller and the second propeller to rotate in opposite directions. A kneading device is located downstream of the stirring device and is used to stir the secondary reactants; the kneading device, the reaction device, and the stirring device all include a receiving cavity and a stirring mechanism disposed within the receiving cavity; A filtration device includes an inlet, a heating unit, a filtration assembly, an automatic sludge scraper, and a mass sensor. The inlet is connected to the lower ends of a reaction device, a stirring device, a kneading device, and a rolling device, respectively, for removing impurities and recovering solvents during the production process. The filtration assembly includes a first filtration unit, a second filtration unit, and a third filtration unit along a direction away from the inlet of the filtration device. The pore size of the first filtration unit is larger than that of the second filtration unit, which is also larger than that of the third filtration unit. Each of the first, second, and third filtration units has an outlet for collecting the material trapped by the filtration units. The automatic sludge scraper is located on the inner wall of the filtration device. The mass sensor is connected to each of the first, second, and third filtration units for monitoring the mass of the material trapped by the filtration units. A roller pressing device is located downstream of the kneading device and is used to press the material fed into the roller pressing device by the kneading device. An automatic cutting device, connected to the roller pressing device, is used for automatically cutting and packaging adhesives.

2. The adhesive production equipment according to claim 1, characterized in that, The filtration device has an output port connected to the reaction device, which is used to input the solvent recovered by the filtration device into the reaction device to achieve recycling.

3. The adhesive production equipment according to claim 1, characterized in that, When the mass sensor detects that the mass change rate of the material trapped on the filter unit is less than 5% within 5 minutes, the automatic sludge scraping component scrapes off the material trapped in the corresponding filter unit.

4. The adhesive production equipment according to claim 1, characterized in that, The roller pressing device includes at least three sets of pressing units arranged along a first direction. Each of the three sets of pressing units includes a first rotating roller and a first pressing roller located outside the first rotating roller, a second rotating roller and a second pressing roller located outside the second rotating roller; the outer sides of the first pressing roller and the second pressing roller are provided with threads in opposite directions of rotation. The distance between the first and second rolling rollers in the two rolling units near the kneading device is greater than the distance between the first and second rolling rollers in the two rolling units near the automatic cutting device.

5. The adhesive production equipment according to claim 4, characterized in that, The distance between the first and second rolling rollers in the two sets of rolling units near the kneading device is 2mm to 3mm; the distance between the first and second rolling rollers in the two sets of rolling units near the automatic cutting device is 0.3mm to 0.8mm.

6. The adhesive production equipment according to claim 1, characterized in that, The adhesive production equipment also includes a heating device and a feeding device. The heating device is located on the outer wall of the receiving cavity of the reaction device. The feeding device and the reaction device are both equipped with temperature sensors and mass sensors. The feeding device, reaction device, heating device, kneading device, filtering device and rolling device are all connected to control electrical components.

7. A method for preparing an adhesive, characterized in that, The adhesive production equipment according to any one of claims 1 to 6 comprises: The raw materials are mixed in a feeding device and then transported to a reaction device for stirring and reaction to obtain preliminary reactants. The reactants are fed into a stirring device for secondary stirring to obtain secondary reactants; the secondary reactants are then fed into a kneading device for stirring to obtain refined secondary reactants; the refined secondary reactants are fed into a rolling device for pressing, and then conveyed to an automatic cutting device for automatic cutting and packaging of the adhesive; wherein, the filtration device is kept in communication with the reaction device, stirring device, kneading device, and rolling device to remove impurities and recover solvents during the preparation process; the viscosity of the adhesive is 10000 cP to 1000000 cP.

8. The method for preparing the adhesive according to claim 7, characterized in that, During the preparation of the reactants, the stirring rate is 20 rpm / min to 100 rpm / min; during the preparation of the secondary reactants, the stirring rate is 150 rpm / min to 300 rpm / min; during the preparation of the refined secondary reactants, the stirring rate is 20 rpm / min to 100 rpm / min.

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