Glue mixing device for impregnated paper and glue mixing method thereof

By integrating modular sensing and sampling units into the glue preparation device, the problems of complex maintenance and inconvenient sampling of existing devices are solved, realizing efficient online monitoring and non-destructive sampling, and improving production flexibility and quality control.

CN121797136APending Publication Date: 2026-04-07WENAN CHUANGBO TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-09
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing adhesive mixing equipment suffers from production interruptions, material waste, and high operational complexity during maintenance and sampling, and it is difficult to achieve convenient and non-destructive real-time monitoring and sampling.

Method used

A glue preparation device for impregnated paper was designed. By setting an external mounting base and a detachable snap-fit ​​base on the side wall of the glue preparation cylinder, the sensing unit and the sampling unit are integrated on the snap-fit ​​base to form a modular component, which realizes the convenient separation of online monitoring and sampling functions, and facilitates independent disassembly and maintenance.

Benefits of technology

It improved the maintainability and operational flexibility of the equipment, reduced production downtime, ensured the accuracy of monitoring data and the representativeness of sampling, and enhanced the quality control level of the adhesive preparation process.

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Abstract

The invention discloses a glue mixing device for impregnated paper and a glue mixing method thereof, and relates to the technical field of glue mixing devices. The glue mixing device for the impregnated paper comprises a glue mixing barrel and a sealing cover arranged above the glue mixing barrel, a feeding pipe is arranged on the sealing cover, a discharging pipe is arranged at the bottom of the glue mixing barrel, and the glue mixing device further comprises an external mounting seat, a clamping base, a sensing unit and a sampling unit. According to the glue mixing device for the impregnated paper, online monitoring and process sampling functions can be conveniently separated from main equipment, when a sensor or a sampling pipe needs to be maintained, calibrated or replaced, only the independent assembly needs to be disassembled, glue liquid in a cylinder does not need to be emptied or the whole glue mixing device does not need to be shut down for a long time, the maintainability and operation flexibility of the equipment are improved, and the cost is reduced. The problem of production interruption caused by inconvenient maintenance of functional parts in a traditional structure is effectively solved, and different sampling depths and positions can be set in the sampling process.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glue adjusting device, in particular to a glue adjusting device for impregnated paper and a glue adjusting method thereof. BACKGROUND

[0002] In the production process of impregnated paper, the uniformity of glue solution preparation and the stability of parameters directly affect the impregnation quality. The existing glue adjusting device usually includes a cylinder with a stirring mechanism. The material is fed through the feed port, and after being stirred and mixed uniformly, it is discharged from the bottom discharge port. In order to realize process control, some devices will fixedly install sensors inside the cylinder to monitor the viscosity or temperature of the glue solution and other parameters. Or a fixed sampling valve is arranged on the cylinder wall to obtain samples when the machine is stopped. Such design rigidly integrates the monitoring and sampling functions with the main structure.

[0003] However, the above integrated mode has the following problems in actual application. On the one hand, the fixedly installed sensors or sampling tubes must usually be stopped during production and the glue solution in the cylinder must be emptied when calibration, maintenance or replacement is required. If this happens during production, it not only causes material waste and production loss, but also increases the complexity and time cost of maintenance operation. On the other hand, the fixed sampling point may not be able to conveniently and non-destructively obtain representative real-time samples during stirring, which is difficult to effectively complement the online monitoring data, thereby restricting the timeliness and accuracy of process adjustment. In view of the deficiencies of the prior art, the present application provides a glue adjusting device for impregnated paper and a glue adjusting method thereof to solve the above problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a glue adjusting device for impregnated paper and a glue adjusting method thereof. By providing an external mounting seat fixed to the side wall of the glue adjusting cylinder and a clamping base that can be quickly assembled and disassembled as a whole thereon, and integrating the sensing unit and the sampling unit on the clamping base to form an independent modular functional component, the online monitoring and process sampling functions can be conveniently separated from the main equipment. When the sensor or sampling tube needs to be maintained, calibrated or replaced, only the independent component needs to be disassembled, without the need to empty the glue solution in the cylinder or stop the entire glue adjusting device for a long time, thereby improving the maintainability and operational flexibility of the equipment, effectively solving the problem of production interruption caused by the inconvenience of maintaining the functional components in the traditional structure, and different sampling depths and positions can be set during the sampling process.

[0005] To achieve the above object, the present application is implemented by the following technical scheme: a glue adjusting device for impregnated paper, comprising a glue adjusting cylinder and a sealing cover arranged above the glue adjusting cylinder, the sealing cover being provided with a feed pipe, and the bottom of the glue adjusting cylinder being provided with a discharge pipe, further comprising: an external mounting seat fixedly connected to the side wall of the glue adjusting cylinder; A clamping base is detachably mounted on the external mounting seat, and a part of the clamping base extends into the glue adjusting cylinder; A sensing unit is mounted on the clamping base and extends into the glue adjusting cylinder with the clamping base, and is used for monitoring glue parameters online. A sampling unit is mounted on the clamping base and extends into the glue adjusting cylinder with the clamping base, and is used for extracting glue samples during stirring.

[0006] Preferably, the glue adjusting cylinder is a cylindrical structure with an open top, the sealing cover is provided with a pressure relief valve, the sealing cover is detachably connected with the open top of the glue adjusting cylinder, and the discharge pipe is provided with a control valve.

[0007] Preferably, the sealing cover is provided with a stirring unit, the stirring unit includes a driving motor fixed to the outside of the sealing cover and a stirring rod extending into the glue adjusting cylinder and connected with the output shaft of the driving motor.

[0008] Preferably, the clamping base is connected with the external mounting seat through a quick-release mounting structure; the quick-release mounting structure includes a positioning plug column arranged on the clamping base, a positioning plug groove arranged on the external mounting seat and matched with the positioning plug column, and a locking mechanism for locking the positioning plug column in the positioning plug groove after the plug connection.

[0009] Preferably, the sensing unit includes a conduit, a mounting base and a sensor assembly; the conduit is a hollow pipe, one end of the conduit is fixed to the clamping base, and the other end is connected with the mounting base; the sensor assembly is detachably mounted on the mounting base, and the hollow cavity of the conduit provides a wiring channel for the cable of the sensor assembly.

[0010] Preferably, the sensor assembly includes a viscosity sensor and a temperature sensor, the temperature sensor is integrated on the shell of the viscosity sensor; the end of the viscosity sensor is provided with a threaded head, the mounting base is provided with an internal threaded hole matched with the threaded head, so that the sensor assembly can be mounted on the mounting base by screwing.

[0011] Preferably, the sampling unit includes a sampling pipe and a negative pressure container; the sampling pipe is detachably mounted on the clamping base, one end of the sampling pipe extends into the glue adjusting cylinder, and the other end is provided with a butt joint; the negative pressure container is a manual negative pressure generating device, and the negative pressure container can be detachably connected with the butt joint.

[0012] Preferably, a sleeve is fixedly arranged on the clamping base, and a through hole is formed in the sleeve for the sampling tube to pass through; a clamping assembly is arranged on the sleeve for clamping and fixing the sampling tube passing through the through hole; the clamping assembly comprises a hollow seat fixed on the sleeve, a second threaded rod threadedly connected with the hollow seat, and a clamping block rotatably connected with the end of the second threaded rod and abutting against the side surface of the sampling tube.

[0013] Preferably, the locking mechanism comprises a guide rail frame fixed on the external mounting seat, a first threaded rod threadedly connected with the guide rail frame, an adjusting table rotatably connected with the end of the first threaded rod and slidably matched with the guide rail frame, and a locking rod fixed on the adjusting table; a locking hole is formed in the positioning column; rotating the first threaded rod can drive the adjusting table to move, so that the locking rod is inserted into or withdrawn from the locking hole, thereby achieving locking or releasing.

[0014] The application further discloses a glue adjusting method of the glue adjusting device for the impregnated paper. Step S1, preparation and installation: the clamping base and the sensing unit and the sampling unit thereon after cleaning are installed to the designated position of the glue adjusting cylinder body through the external mounting seat and locked; Step S2, raw material feeding: the glue liquid basic component and the additive are added into the glue adjusting cylinder body in proportion through the feeding pipe, and then the sealing cover is closed; Step S3, starting stirring: the driving motor is started to drive the stirring rod to stir and mix the glue liquid; Step S4, online monitoring: the viscosity and temperature data of the glue liquid in the glue adjusting cylinder body are monitored in real time through the sensing unit during the stirring process; Step S5, process sampling: the glue liquid sample is extracted from the sampling tube through the negative pressure container of the sampling unit during the stirring process or when the preset monitoring parameter is reached, and is detected or observed offline; Step S6, judgment and adjustment: the mixing state of the glue liquid is comprehensively judged in combination with the online monitoring data of S4 and the offline sample detection result of S5; if the process requirement is not reached, the stirring parameter is adjusted or the raw material is supplemented, and the steps S3-S5 are repeated; if the requirement is reached, the next step is entered; Step S7, discharging and maintenance: after the stirring is completed, the control valve is opened, and the qualified glue liquid is discharged through the discharging pipe; when the sensing unit needs to be overhauled or replaced, the locking mechanism is released, and the clamping base is taken down from the external mounting seat as a whole for maintenance, and the remaining glue liquid in the glue adjusting cylinder body does not need to be emptied or stopped for processing.

[0015] The technical effects and advantages of the application are as follows: 1. The glue setting device for impregnated paper, by setting the external mounting seat fixed to the side wall of the glue setting cylinder, and the clamping base which can be quickly assembled and disassembled as a whole, and integrating the sensing unit and the sampling unit on the clamping base, an independent modular functional component is formed, so that the online monitoring and process sampling functions can be conveniently separated from the main body equipment, when the sensor or sampling tube needs to be maintained, calibrated or replaced, only the independent component needs to be disassembled, without emptying the glue liquid in the cylinder or making the whole glue setting device stop for a long time, improving the maintainability and operation flexibility of the equipment, effectively solving the production interruption problem caused by the inconvenience of maintaining the functional components in the traditional structure, and different sampling depths and positions can be set during the sampling process.

[0016] 2. The glue setting device for impregnated paper, the sensor assembly of the sensing unit is detachably installed on the installation base extending into the glue liquid through threaded connection, and the temperature sensor is integrated in the viscosity sensor shell, realizing integrated synchronous measurement of key parameters, such integrated and replaceable design not only ensures the accuracy of monitoring data, facilitates independent calibration or replacement of individual sensors, but also provides a regular cable channel for the cable through the conduit, avoiding cable entanglement or damage in the stirring space.

[0017] 3. The glue setting device for impregnated paper, the sampling unit fixes the sampling tube through the adjustable clamping assembly, and uses the manual negative pressure container which can be quickly connected with the sampling tube for sampling, without opening the sealing cover and interrupting the stirring process, it is convenient to flexibly and aseptically extract trace amount of glue liquid sample at different stirring stages, the sampling position and depth are adjustable, the sample is more representative, and the offline sample detection result can be verified with the online monitoring data, providing double basis for accurately judging the glue liquid state and adjusting the process parameters, and improving the quality control level of the glue setting process. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the structure of the stirring unit of the present application; Figure 3 It is a schematic diagram of the structure of the sampling unit of the present application; Figure 4 It is a schematic diagram of the structure of the locking mechanism of the present application; Figure 5It is the structural schematic view of external mounting seat of the present application; Figure 6 It is the structural schematic view of sensing unit of the present application; Figure 7 It is the exploded schematic view of viscosity sensor of the present application; Figure 8 It is the exploded schematic view of sampling pipe of the present application; Figure 9 It is the structural schematic view of clamping assembly of the present application; Figure 10 It is the flow chart of the method of the present application.

[0020] In the figure: 1, glue adjusting cylinder; 11, discharging pipe; 12, control valve; 2, sealing cover; 21, feeding pipe; 3, stirring unit; 31, driving motor; 32, stirring rod; 4, external mounting seat; 41, positioning slot; 5, clamping base; 51, positioning column; 52, locking hole; 53, sleeve; 6, sensing unit; 61, conduit; 62, mounting base; 63, sensor assembly; 631, viscosity sensor; 632, temperature sensor; 633, threaded head; 7, sampling unit; 71, sampling pipe; 711, butt joint; 72, negative pressure container; 8, locking mechanism; 81, guide rail frame; 82, first threaded rod; 83, adjusting table; 84, locking rod; 9, clamping assembly; 91, hollow seat; 92, second threaded rod; 93, clamping block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] The present embodiment discloses a glue adjusting device for impregnated paper, according to the drawings Figure 1 to the drawings Figure 10 It is shown, including glue adjusting cylinder 1, sealing cover 2, stirring unit 3, external mounting seat 4, clamping base 5, sensing unit 6, sampling unit 7, locking mechanism 8 and clamping assembly 9.

[0023] According to the drawings Figure 1 , the drawings Figure 2As shown, the glue adjusting cylinder 1 is a top open cylindrical structure, the bottom of the glue adjusting cylinder 1 is provided with a discharging pipe 11, the discharging pipe 11 is provided with a control valve 12 for controlling the glue liquid discharge, the sealing cover 2 is detachably connected with the top opening of the glue adjusting cylinder 1 to realize the sealing of the container, the sealing cover 2 is provided with a feeding pipe 21 for feeding glue liquid basic components and additives, the sealing cover 2 is provided with a pressure relief valve to ensure the safety during pressure adjustment, further, the stirring unit 3 is arranged on the sealing cover 2, the stirring unit 3 includes a driving motor 31 fixed outside the sealing cover 2 and a stirring rod 32 extending into the inside of the glue adjusting cylinder 1 and connected with the output shaft of the driving motor 31, the stirring unit 3 is used for stirring and mixing the glue liquid to ensure uniformity of the components.

[0024] According to the drawings Figure 1 , the drawings Figure 4 , the drawings Figure 5 As shown, the external mounting seat 4 is fixedly connected with the side wall of the glue adjusting cylinder 1, the clamping base 5 is detachably mounted on the external mounting seat 4 through the quick release mounting structure, and a part of the clamping base 5 and the components carried thereon can extend into the inside of the glue adjusting cylinder 1, further, the quick release mounting structure includes a positioning plug 51 arranged on the clamping base 5, a positioning slot 41 arranged on the external mounting seat 4 and matched with the positioning plug 51, and a locking mechanism 8 for locking the positioning plug 51 in the positioning slot 41 after plugging.

[0025] According to the drawings Figure 4 , the drawings Figure 5 As shown, the locking mechanism 8 includes a guide rail frame 81 fixed on the external mounting seat 4, a first threaded rod 82 threadedly connected with the guide rail frame 81, an adjusting table 83 rotatably connected with the end of the first threaded rod 82 and slidably matched with the guide rail frame 81, and a locking rod 84 fixed on the adjusting table 83, correspondingly, the positioning plug 51 is provided with a locking hole 52, rotating the first threaded rod 82 can drive the adjusting table 83 to move along the guide rail frame 81, so that the locking rod 84 is inserted into or withdrawn from the locking hole 52, realizing the quick locking and fixing or releasing and dismounting of the clamping base 5.

[0026] According to the drawings Figure 1 , the drawings Figure 6 , the drawings Figure 7As shown, the sensing unit 6 is mounted on the clamping base 5 and extends into the glue mixing barrel 1 to monitor the glue parameters online. Further, the sensing unit 6 includes a conduit 61, a mounting base 62, and a sensor assembly 63. The conduit 61 is a hollow pipe, one end of which is fixed to the clamping base 5, and the other end of which is connected to the mounting base 62. The sensor assembly 63 is detachably mounted on the mounting base 62. The hollow cavity of the conduit 61 provides a wiring channel for the cable of the sensor assembly 63, so that the wiring layout is neat and protected. In particular, the sensor assembly 63 includes a viscosity sensor 631 and a temperature sensor 632, and the temperature sensor 632 is integrated on the shell of the viscosity sensor 631 to realize integrated measurement. The end of the viscosity sensor 631 is provided with a threaded head 633, and the mounting base 62 is provided with an internal threaded hole matched with the threaded head 633, so that the sensor assembly 63 can be conveniently mounted on the mounting base 62 by screwing, facilitating later maintenance or replacement.

[0027] According to the accompanying drawings Figure 1 , the accompanying drawings Figure 3 , the accompanying drawings Figure 8 , the accompanying drawings Figure 9 As shown, the sampling unit 7 is mounted on the clamping base 5 and extends into the glue mixing barrel 1 to extract a glue sample during the stirring process. Further, the sampling unit 7 includes a sampling pipe 71 and a negative pressure container 72. The sampling pipe 71 is detachably mounted on the clamping base 5, one end of which extends into the glue mixing barrel 1, and the other end of which is provided with a mating head 711. The negative pressure container 72 is a manual negative pressure generating device, such as a medical syringe or a special negative pressure sampler, which can be detachably connected with the mating head 711. By manually operating the negative pressure container 72, the glue is sucked into the negative pressure container 72 through the sampling pipe 71 to realize non-destructive sampling. In particular, the clamping base 5 is fixedly provided with a sleeve 53, and the sleeve 53 is provided with a through hole through which the sampling pipe 71 passes. The sleeve 53 is provided with a clamping assembly 9 for clamping and fixing the sampling pipe 71 passing through the through hole. The clamping assembly 9 includes a hollow seat 91 fixed on the sleeve 53, a second threaded rod 92 threadedly connected with the hollow seat 91, and a clamping block 93 rotatably connected at the end of the second threaded rod 92 and abutting against the side surface of the sampling pipe 71. By tightening the second threaded rod 92, the clamping block 93 is pushed to press the sampling pipe 71 to fix the position of the sampling pipe 71. By loosening the second threaded rod 92, the sampling pipe 71 can be released to facilitate the installation, adjustment of the extension depth, or disassembly and cleaning of the sampling pipe 71.

[0028] According to the accompanying drawings Figure 1 to the accompanying drawings Figure 10As shown, it is particularly emphasized that the core innovation of the device lies in the modular integration of the sensing unit 6 and the sampling unit 7 on a component that can be quickly disassembled and assembled as a whole through the cooperation of the external mounting seat 4, the clamping base 5, and the quick-release locking mechanism 8. This allows the online monitoring and process sampling functions to be installed, maintained, or replaced independently without interrupting production or emptying the glue solution, greatly improving the maintainability and operational flexibility of the device.

[0029] According to the accompanying Figure 1 to the accompanying Figure 10 As shown, it is particularly emphasized that the sensing unit 6 and the sampling unit 7 are independent in spatial layout but share the same clamping base 5. This design allows the sensor to obtain real-time overall state parameters of the glue solution, including viscosity and temperature, while the sampling tube 71 can extract representative samples from the same liquid layer or nearby area for offline precise analysis. The data of the two can be verified with each other, providing double protection for precise control of the glue adjusting process.

[0030] In Example 1, the online monitoring and adjustment of the glue solution process are taken as examples, combined with the accompanying Figure 1 to the accompanying Figure 10 The working process is described in detail as follows: Step S1, preparation and installation: insert the cleaned clamping base 5 and the sensing unit 6 and the sampling unit 7 already installed thereon through the positioning insertion column 51 into the positioning insertion slot 41 of the external mounting seat 4, and then rotate the first threaded rod 82 of the locking mechanism 8 to drive the locking rod 84 to insert into the locking hole 52 of the positioning insertion column 51, completing the quick installation and locking.

[0031] Step S2, raw material feeding: add glue solution basic components such as resin, curing agent, solvent, and necessary additives into the glue adjusting cylinder 1 through the feeding pipe 21 according to the preset process ratio, and then close the sealing cover 2.

[0032] Step S3, start stirring: start the driving motor 31 to drive the stirring rod 32 to stir and mix the glue solution.

[0033] Step S4, online monitoring: during the stirring process, the viscosity sensor 631 and the temperature sensor 632 integrated on the sensor assembly 63 start working, monitoring and transmitting the viscosity and temperature data of the glue solution in the glue adjusting cylinder 1 to the external control system in real time.

[0034] Step S5, process sampling: when the online monitoring data approaches the preset threshold or needs to be reviewed, the operator connects the negative pressure container 72 to the docking head 711 of the sampling tube 71, and operates the negative pressure container 72 to generate suction to extract a small amount of glue solution sample from the inside of the glue adjusting cylinder 1.

[0035] Step S6, Judgment and Adjustment: The control system combines the real-time online monitoring data from S4 with the results of offline sample detection in S5 to comprehensively judge the mixing state of the adhesive. If the judgment does not meet the process requirements, the stirring speed and duration of the drive motor 31 can be adjusted, or a small amount of adjuster can be added through the feed pipe 21. Steps S3-S5 are repeated for verification. If all parameters meet the requirements, proceed to the next step.

[0036] Step S7, Discharge: After the mixing reaches the standard, open the control valve 12, and the qualified adhesive liquid is discharged through the discharge pipe 11 for use in the impregnation process.

[0037] Example 2: This example uses sensor unit maintenance as an example, combined with the attached... Figure 1 To be continued Figure 10 The workflow is explained in detail below: When the sensor assembly 63 of the sensing unit 6 needs calibration, maintenance, or replacement, there is no need to clean the remaining adhesive in the air conditioning adhesive cartridge 1 or completely shut down the device. The operation procedure is as follows: Ensure that stirring has stopped and that mixing cylinder 1 is in a safe condition.

[0038] The first threaded rod 82 of the rotating locking mechanism 8 drives the adjusting table 83 to retract, so that the locking rod 84 is completely withdrawn from the locking hole 52 of the locking base 5.

[0039] Along the axial direction, the entire snap-fit ​​base 5 and the integrated sensing unit 6 and sampling unit 7 are smoothly pulled out from the positioning slot 41 of the external mounting base 4. During this process, the conduit 61, mounting base 62, sensor assembly 63 and sampling tube 71 that extend into the cylinder are moved out.

[0040] Move the removed modular components to the maintenance area. For the sensing unit 6, the threaded head 633 of the viscosity sensor 631 can be manually rotated to unscrew the viscosity sensor 631 from the internal threaded hole of the mounting base 62 for replacement or inspection. The sensing cable can be partially pulled out from the conduit 61 for easy operation.

[0041] After maintenance, screw the sensor assembly 63 back into the mounting base 62, store the cable in the conduit 61, check whether the sampling tube 71 of the sampling unit 7 is clean, and if necessary, loosen the second threaded rod 92 of the snap-fit ​​assembly 9 to remove and clean it.

[0042] By reinserting the entire properly maintained snap-fit ​​base 5 assembly into the external mounting base 4 and locking it, the online monitoring and sampling functions of the device can be quickly restored, greatly reducing equipment downtime.

[0043] Finally, it should be noted that the above is only the preferred embodiment of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified to the technical solution recorded in the foregoing embodiments, or equivalent replacement of some technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A glue-mixing device for impregnated paper, comprising a glue-mixing cylinder (1) and a sealing cap (2) disposed above the glue-mixing cylinder (1), wherein the sealing cap (2) is provided with a feed pipe (21) and the bottom of the glue-mixing cylinder (1) is provided with a discharge pipe (11), characterized in that, Also includes: An external mounting base (4) is fixedly connected to the side wall of the glue mixing cylinder (1); The snap-fit ​​base (5) is detachably mounted on the external mounting base (4), and a portion of it extends into the interior of the glue mixing cylinder (1); The sensing unit (6) is installed on the snap-fit ​​base (5) and extends into the glue mixing cylinder (1) along with the snap-fit ​​base (5) for online monitoring of glue parameters; The sampling unit (7) is installed on the snap-fit ​​base (5) and extends into the interior of the mixing cylinder (1) along with the snap-fit ​​base (5) to extract adhesive samples during the stirring process.

2. The adhesive mixing device for impregnated paper according to claim 1, characterized in that, The mixing cylinder (1) is a cylindrical structure with an open top. The sealing cover (2) is equipped with a pressure relief valve. The sealing cover (2) is detachably connected to the top opening of the mixing cylinder (1). The feed pipe (11) is equipped with a control valve (12).

3. The adhesive mixing device for impregnated paper according to claim 1, characterized in that, The sealing cover (2) is provided with a stirring unit (3), which includes a drive motor (31) fixed to the outside of the sealing cover (2) and a stirring rod (32) extending into the interior of the mixing cylinder (1) and connected to the output shaft of the drive motor (31).

4. The adhesive mixing device for impregnated paper according to claim 1, characterized in that, The snap-fit ​​base (5) is connected to the external mounting base (4) via a quick-release mounting structure. The quick-release mounting structure includes a positioning pin (51) on the snap-fit ​​base (5), a positioning slot (41) on the external mounting base (4) that cooperates with the positioning pin (51), and a locking mechanism (8) for locking the positioning pin (51) after insertion into the positioning slot (41).

5. The adhesive mixing device for impregnated paper according to claim 4, characterized in that, The sensing unit (6) includes a conduit (61), a mounting base (62), and a sensor assembly (63); the conduit (61) is a hollow tube, one end of the conduit (61) is fixed to the snap-fit ​​base (5), and the other end is connected to the mounting base (62); the sensor assembly (63) is detachably mounted on the mounting base (62), and the hollow cavity of the conduit (61) provides a wiring channel for the cable of the sensor assembly (63).

6. The adhesive mixing device for impregnated paper according to claim 5, characterized in that, The sensor assembly (63) includes a viscosity sensor (631) and a temperature sensor (632). The temperature sensor (632) is integrated into the housing of the viscosity sensor (631). The end of the viscosity sensor (631) is provided with a threaded head (633). The mounting base (62) is provided with an internal threaded hole that mates with the threaded head (633), so that the sensor assembly (63) can be installed on the mounting base (62) by thread engagement.

7. The adhesive mixing device for impregnated paper according to claim 4, characterized in that, The sampling unit (7) includes a sampling tube (71) and a negative pressure container (72); the sampling tube (71) is detachably installed on the snap-fit ​​base (5), one end of the sampling tube (71) extends into the interior of the mixing cylinder (1), and the other end is provided with a connector (711); the negative pressure container (72) is a manual negative pressure generating device, and the negative pressure container (72) can be detachably connected to the connector (711).

8. The adhesive mixing device for impregnated paper according to claim 7, characterized in that, A sleeve (53) is fixedly provided on the snap-fit ​​base (5), and a through hole is provided on the sleeve (53) for the sampling tube (71) to pass through; a snap-fit ​​assembly (9) is provided on the sleeve (53) for clamping and fixing the sampling tube (71) passing through the through hole; the snap-fit ​​assembly (9) includes a hollow seat (91) fixed on the sleeve (53), a second threaded rod (92) threadedly connected to the hollow seat (91), and a snap block (93) rotatably connected to the end of the second threaded rod (92) and in contact with the side of the sampling tube (71).

9. The adhesive mixing device for impregnated paper according to claim 4, characterized in that, The locking mechanism (8) includes a guide rail frame (81) fixed on the external mounting base (4), a first threaded rod (82) threadedly connected to the guide rail frame (81), an adjustment platform (83) rotatably connected to the end of the first threaded rod (82) and slidingly engaged with the guide rail frame (81), and a locking rod (84) fixed on the adjustment platform (83); a locking hole (52) is provided on the positioning pin (51); rotating the first threaded rod (82) can drive the adjustment platform (83) to move, so that the locking rod (84) can be inserted into or removed from the locking hole (52), thereby achieving locking or releasing.

10. A method for preparing adhesive based on the adhesive preparation apparatus for impregnated paper according to any one of claims 1-9, characterized in that, Includes the following steps: Step S1: Install the cleaned snap-fit ​​base (5) and its sensing unit (6) and sampling unit (7) onto the designated position of the glue mixing cylinder (1) through the external mounting base (4) and lock it. Step S2: Add the basic components of the adhesive and additives into the mixing cylinder (1) in proportion through the feed pipe (21), and then close the sealing cap (2). Step S3: Start the drive motor (31) to drive the stirring rod (32) to stir and mix the adhesive liquid; Step S4: During the stirring process, the viscosity and temperature data of the adhesive liquid in the mixing cylinder (1) are monitored in real time by the sensing unit (6); Step S5: During the stirring process or when the preset monitoring parameters are reached, the adhesive sample is extracted from the sampling tube (71) by operating the negative pressure container (72) of the sampling unit (7) for offline detection or observation. Step S6: Combine the online monitoring data from S4 with the offline sample test results from S5 to comprehensively judge the mixing state of the adhesive solution; if the process requirements are not met, adjust the stirring parameters or add raw materials, and repeat steps S3-S5; if the requirements are met, proceed to the next step. Step S7: After stirring, open the control valve (12) and discharge qualified adhesive through the discharge pipe (11); when it is necessary to repair or replace the sensing unit (6), release the locking mechanism (8) and remove the snap-fit ​​base (5) from the external mounting base (4) for maintenance. There is no need to empty or stop the machine to deal with the remaining adhesive in the mixing cylinder (1).