Filter paper base material non-stop roll changing system and non-stop roll changing method

Abstract

The invention discloses a non-stop roll changing system and a non-stop roll changing method for a filter paper base material, and belongs to the technical field of winding equipment. The non-stop roll changing system for the filter paper base material comprises a rack, a first rolling shaft and a second rolling shaft are arranged on the rack in the first direction in a spaced mode, the first rolling shaft and the second rolling shaft can work independently, and the filter paper base material can be rolled by the first rolling shaft or the second rolling shaft; the meter counter is arranged on the rack and used for detecting the rolling length of the filter paper base material; the paper cutting unit is arranged on the rack and can move back and forth between the first winding shaft and the second winding shaft in the first direction, and when the winding length of the filter paper base material meets a preset value, the paper cutting unit can cut off the filter paper base material; the paper pulling unit is arranged on the rack and can slide in the first direction, and the paper pulling unit is used for intervening and pulling the filter paper base material. The roll changing operation can be completed under the condition that shutdown is not needed, the filter paper base material is prevented from being scrapped, and the production efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of winding equipment technology, and in particular to a non-stop roll changing system and method for filter paper substrate. Background Technology

[0002] In modern production processes for filter paper substrates, composite filter media technology is widely adopted in the industry to improve filtration performance and service life. This involves creating a gradient filtration structure by combining a paper base with multiple layers of nonwoven fabric (such as meltblown or spunbond layers). The pre-filter layer (spunbond layer) intercepts large particles and protects subsequent filter layers. The main filter layer (meltblown layer) uses ultrafine fibers to capture tiny particles, improving filtration efficiency. The support layer (paper base) provides structural strength and prevents filter media deformation. This design improves filtration efficiency and extends the service life of the filter media. For example, in fuel filters, the composite structure of paper base and meltblown nonwoven fabric effectively filters impurities in fuel while maintaining low resistance, ensuring smooth fuel supply to the engine.

[0003] While composite filter media technology significantly improves filter performance, a key bottleneck exists in traditional production processes: the downtime and roll replacement during the filter paper substrate winding stage. Specifically, once a roll of filter media is wound up, the equipment must be completely stopped, requiring operators to manually cut the filter paper substrate, replace the empty roll, and restart the production line. This process has the following technical drawbacks: Firstly, it leads to substrate scrapping: at the moment of shutdown, the winding tension suddenly disappears, causing wrinkles or stretching deformation at the end of the substrate due to inertia; upon restarting, tension fluctuations may cause indentations or breakage on the filter paper substrate surface. Secondly, it reduces production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a filter paper substrate non-stop roll changing system and method, which can complete the roll changing operation without stopping the machine, not only avoiding the scrapping of filter paper substrate, but also helping to improve production efficiency.

[0005] To achieve the above objectives, the following technical solution is provided:

[0006] The filter paper substrate non-stop roll changing system includes:

[0007] A frame, wherein a first winding shaft and a second winding shaft are spaced apart along a first direction, and the first winding shaft and the second winding shaft can work independently, and the filter paper substrate can be wound by the first winding shaft or the second winding shaft.

[0008] A meter counter is mounted on the frame and is used to detect the winding length of the filter paper substrate.

[0009] A paper cutting unit is disposed on the frame and can move back and forth between the first winding shaft and the second winding shaft in a first direction. When the winding length of the filter paper substrate meets a preset value, the paper cutting unit can cut the filter paper substrate.

[0010] A paper-pulling unit is disposed on the frame and can slide along a first direction. The paper-pulling unit is used to intervene and pull the filter paper substrate.

[0011] As an optional solution for a non-stop roll changing system for filter paper substrates, the frame is provided with a first guide rail extending along a first direction, and the paper pulling unit includes:

[0012] The first mounting frame is slidably mounted on the first guide rail and is capable of moving along the first direction;

[0013] The paper-pulling module includes a pressure roller and a drive roller. The pressure roller and the drive roller are arranged parallel to each other and spaced apart on the first mounting frame. The pressure roller and the drive roller are used to pass through the filter paper substrate. The pressure roller can move closer to or further away from the drive roller.

[0014] As an optional solution for a non-stop roll changing system for filter paper substrates, the paper pulling module further includes:

[0015] The first telescopic mechanism is used to adjust the paper passage gap between the pressure roller and the drive roller. The first telescopic mechanism is disposed on the first mounting frame, and the telescopic end of the first telescopic mechanism is fixedly connected to the roller shaft of the pressure roller.

[0016] A first rotary drive mechanism is used to drive the active roller to rotate. The first rotary drive mechanism is disposed on the first mounting frame and is connected to the roller shaft of the active roller via a transmission connection.

[0017] As an optional solution for a non-stop roll changing system for filter paper substrates, the paper pulling unit includes:

[0018] The first guide module is located downstream of the paper pulling module. The first guide module includes a first guide roller and a second guide roller. The first guide roller and the second guide roller are arranged parallel to each other and spaced apart on the first mounting frame. The first guide roller and the second guide roller are used to pass through the filter paper substrate.

[0019] As an optional solution for a non-stop roll changing system for filter paper substrates, the paper pulling unit further includes:

[0020] A tension detection sensor is disposed on the first mounting frame, and the tension detection sensor is used to detect the tension of the filter paper substrate.

[0021] As an optional solution for a non-stop roll changing system for filter paper substrates, the frame is provided with a second guide rail extending along a first direction, and the paper cutting unit includes:

[0022] The second mounting frame is slidably mounted on the second guide rail and can move along the first direction;

[0023] The paper cutting module includes a second telescopic mechanism, a first cutter and a second cutter. The first cutter and the second cutter are spaced apart on the second mounting frame, forming a paper cutting station between the first cutter and the second cutter. The telescopic end of the second telescopic mechanism is connected to the first cutter.

[0024] As an optional solution for a non-stop roll changing system for filter paper substrates, the paper cutting unit further includes:

[0025] The second guide module is located upstream of the paper cutting module. The second guide module includes a third guide roller, a fourth guide roller, a third telescopic mechanism, and a second rotary drive mechanism. The third guide roller and the fourth guide roller are parallel and spaced apart on the second mounting frame. The third telescopic mechanism is used to adjust the paper feed gap between the third guide roller and the fourth guide roller. The telescopic mechanism is located on the second mounting frame, and its telescopic end is connected to the roller shaft of the third guide roller. The second rotary drive mechanism is used to drive the fourth guide roller to rotate. The second rotary drive mechanism is located on the second mounting frame and is drively connected to the roller shaft of the fourth guide roller.

[0026] The third guide module is located downstream of the paper cutting module. The third guide module includes a fifth guide roller and a sixth guide roller, which are arranged parallel to each other and spaced apart on the second mounting frame.

[0027] The non-stop roll changing method utilizes the filter paper substrate non-stop roll changing system described above to change and rewind the filter paper substrate, and includes the following steps:

[0028] S1. System initialization and startup: The first take-up shaft begins to wind up, and the required length of the filter paper substrate is measured by the meter counter.

[0029] S2. After the meter length is reached, the paper pulling unit intervenes to provide a constant tension to the filter paper substrate, the paper cutting unit cuts the filter paper substrate simultaneously, and the first winding shaft stops rotating.

[0030] S3. After the filter paper substrate is cut, the paper pulling unit and the paper cutting unit continue to convey a certain length of paper head;

[0031] S4. After the operator fixes the paper head to the second take-up shaft, the second take-up shaft is in a fast state and tightens the buffered filter paper substrate. When the buffered filter paper substrate is cleaned up, the second take-up shaft speed switches to a slow state. The slow state is consistent with the original supply speed of the filter paper substrate. The paper pulling unit exits synchronously and ends the paper pulling.

[0032] S5. Continue until the second take-up reel is finished. Repeat step S2 in the same pattern to start the next round of roll changing, and repeat the cycle.

[0033] As an alternative to the non-stop roll changing method, in step S1, before the length of the wound filter paper substrate reaches a preset value, the paper cutting unit is moved to one side of the second winding shaft in advance.

[0034] As an alternative to the non-stop roll changing method, in step S4, after the buffered filter paper substrate is cleaned, the tension sensor on the paper pulling unit is triggered. When the value detected by the tension sensor is greater than the system preset tension value, the speed of the second take-up shaft is switched to slow speed.

[0035] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0036] The filter paper substrate non-stop rewinding system provided by this invention has a first winding shaft and a second winding shaft installed at intervals on the left and right sides of the frame along a first direction. A meter counter can accurately measure the winding length of the filter paper substrate in real time. When the winding length meets a preset value, the cutting unit can cut the filter paper substrate, ensuring the accuracy of the winding length. After the filter paper substrate is cut, the winding shaft stops rotating, and the paper pulling unit can immediately intervene and pull the paper end of the filter paper substrate, preventing a decrease in tension and ensuring that the filter paper substrate can continue to be conveyed. The buffered filter paper substrate is manually fixed to another winding shaft, and then another winding shaft continues to wind the filter paper substrate, ensuring the original supply of filter paper substrate without stopping the machine. This not only avoids the scrapping of filter paper substrate but also helps to improve production efficiency. Because the cutting unit can move back and forth between the first and second winding shafts along the first direction, it is convenient to pull the paper end closer to the winding shaft during the rewinding process, reducing the labor intensity of manual movement. Since the paper pulling unit can also slide along the first direction, it can assist in the traction of the paper head and prevent excessive tension on the filter paper substrate between the paper pulling unit and the paper cutting unit, which could cause the filter paper substrate to break.

[0037] The non-stop roll changing method provided by this invention includes the following steps: S1, system initialization and startup, the first take-up shaft begins to wind, and the required length of filter paper substrate is measured by a meter counter; S2, after the measured length is reached, the paper pulling unit intervenes to provide a constant tension to the filter paper substrate, the paper cutting unit simultaneously cuts the filter paper substrate, and the first take-up shaft stops rotating; S3, after the filter paper substrate is cut, the paper pulling unit and the paper cutting unit continue to convey a certain length of paper end; S4, after the operator fixes the paper end to the second take-up shaft, the second take-up shaft is in a fast state and tightens the buffered filter paper substrate. When the buffered filter paper substrate is cleared, the speed of the second take-up shaft switches to a slow state, the slow state is consistent with the original supply speed of the filter paper substrate, and the paper pulling unit simultaneously exits and ends the paper pulling; S5, until the second take-up shaft completes winding, step S2 is repeated in the same mode to start the next round of roll changing, and the cycle continues. The non-stop roll changing method can complete the roll changing operation without stopping the machine, which not only avoids the scrapping of filter paper substrate, but also helps to improve production efficiency. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0039] Figure 1 This is an assembly diagram of the filter paper substrate non-stop roll changing system in an embodiment of the present invention;

[0040] Figure 2 This is a schematic diagram of the paper-pulling unit in an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the paper cutting unit from a first-view perspective in an embodiment of the present invention;

[0042] Figure 4 This is a schematic diagram of the paper cutting unit from a second perspective in an embodiment of the present invention;

[0043] Figure 5 This is a flowchart of the non-stop roll changing method in an embodiment of the present invention.

[0044] Figure label:

[0045] 100. Frame; 200. First take-up shaft; 300. Second take-up shaft; 400. Meter counter; 500. Paper cutting unit; 600. Paper pulling unit;

[0046] 101. First guide rail; 102. Second guide rail;

[0047] 501. Second mounting frame; 502. Second telescopic mechanism; 503. First cutter; 504. Second cutter; 505. Third guide roller; 506. Fourth guide roller; 507. Third telescopic mechanism; 508. Second rotary drive mechanism; 509. Fifth guide roller; 5010. Sixth guide roller;

[0048] 601. First mounting frame; 602. Paper pressure roller; 603. Drive roller; 604. First telescopic mechanism; 605. First rotary drive mechanism; 606. First guide roller; 607. Second guide roller. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0050] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0053] To enable roll changing operations without downtime, thus avoiding the scrapping of filter paper substrate and improving production efficiency, this embodiment provides a non-stop roll changing system for filter paper substrate. The following describes the system in conjunction with... Figures 1 to 5 The specific content of this embodiment will be described in detail.

[0054] like Figures 1 to 4 As shown, the filter paper substrate roll changing system in this embodiment includes several key components such as frame 100, meter counter 400, paper cutting unit 500 and paper pulling unit 600, which work together to achieve efficient operation of filter paper substrate roll changing without stopping the machine during production. The frame 100 serves as the supporting framework for the entire system. Along a first direction (which can be understood as the transverse or horizontal direction of the frame 100), a first winding shaft 200 and a second winding shaft 300 are spaced apart. Both the first winding shaft 200 and the second winding shaft 300 can operate independently, meaning they can flexibly choose one to wind the filter paper substrate according to production needs, or remain in standby mode for subsequent roll changes. The filter paper substrate can be precisely guided to either the first winding shaft 200 or the second winding shaft 300 for winding according to the actual production schedule. This design provides the foundation for roll changes without stopping the machine. A meter counter 400 is installed on the frame 100. The meter counter 400 is used to detect the winding length of the filter paper substrate in real time and accurately. Precise control of the winding length is crucial in the filter paper production process, directly affecting product quality and production plan execution. The presence of the meter counter 400 allows operators to monitor the winding status of the filter paper substrate at any time, providing a basis for subsequent roll changes. Accurate data is essential. The paper cutting unit 500, also mounted on the frame 100, is capable of reciprocating between the first take-up shaft 200 and the second take-up shaft 300 along the first direction. When the meter counter 400 detects that the winding length of the filter paper substrate meets a preset value, the paper cutting unit 500 responds quickly and cuts the filter paper substrate. The paper cutting unit 500 ensures that the filter paper is not damaged during cutting and also guarantees the accuracy of the cutting position, creating favorable conditions for subsequent roll-changing operations. The paper pulling unit 600 is also an important component of the system. Mounted on the frame 100 and capable of sliding along the first direction, the paper pulling unit 600 intervenes and pulls the filter paper substrate. After the filter paper substrate is cut, the take-up shaft stops rotating, causing a change in the tension of the filter paper substrate. Improper handling can easily lead to slack in the filter paper substrate. The function of the paper pulling unit 600 is to intervene immediately at this critical moment, pulling the end of the filter paper substrate to maintain stable tension and prevent the continued transport of the filter paper substrate from being affected by a decrease in tension.

[0055] In summary, the filter paper substrate non-stop rewinding system provided by this invention has a first winding shaft 200 and a second winding shaft 300 installed at intervals on the left and right sides of the frame 100 along a first direction. A meter counter 400 can accurately measure the winding length of the filter paper substrate in real time. When the winding length of the filter paper substrate meets a preset value, the paper cutting unit 500 can cut the filter paper substrate, ensuring the accuracy of the winding length. After the filter paper substrate is cut, the winding shaft stops rotating, and the paper pulling unit 600 can immediately intervene and pull the paper end of the filter paper substrate, preventing a decrease in the tension of the filter paper substrate and ensuring that the filter paper substrate can continue to be conveyed. The buffered filter paper substrate is manually fixed to another winding shaft, and then another winding shaft continues to wind the filter paper substrate, ensuring the original supply of filter paper substrate without stopping the machine. This not only avoids the scrapping of filter paper substrate but also helps to improve production efficiency. Because the paper cutting unit 500 can move back and forth between the first take-up shaft 200 and the second take-up shaft 300 along the first direction, this design allows the paper cutting unit 500 to pull the paper head closer to the take-up shaft during roll changing. This eliminates the need for operators to manually move the paper head a considerable distance when securing it, significantly reducing the labor intensity of manual movement. Simultaneously, the paper pulling unit 600 can also slide along the first direction, assisting in the pulling of the paper head and maintaining appropriate tension on the filter paper substrate during traction, preventing the filter paper substrate located between the paper pulling unit 600 and the paper cutting unit 500 from breaking due to excessive tension. This design simplifies the operation process, reduces operational difficulty, and improves operational accuracy and reliability, allowing even non-professional operators to quickly master roll changing techniques.

[0056] Furthermore, the frame 100 is provided with a first guide rail 101 extending along a first direction. The paper pulling unit 600 includes a first mounting frame 601 and a paper pulling module. The first mounting frame 601 is slidably mounted on the first guide rail 101 and can move along the first direction. The paper pulling module includes a pressure roller 602 and a drive roller 603. The pressure roller 602 and the drive roller 603 are parallel and spaced apart on the first mounting frame 601. The pressure roller 602 and the drive roller 603 are used to pass through the filter paper substrate. The pressure roller 602 can move closer to or further away from the drive roller 603. The design that the pressure roller 602 can move closer to or further away from the drive roller 603 allows the system to flexibly adjust the clamping force according to the actual situation of the filter paper substrate. During the filter paper substrate conveying process, especially when changing rolls or when the tension changes, by increasing the clamping force between the pressure roller 602 and the drive roller 603, the filter paper substrate can be effectively prevented from falling between them, avoiding production interruptions and material waste caused by the filter paper substrate falling, and improving the continuity and stability of production. The rotation of the drive roller 603 provides power for conveying the filter paper substrate, and by precisely controlling the rotation speed and direction of the drive roller 603, a constant tension can be ensured on the filter paper substrate. This constant tension ensures that the filter paper substrate remains flat during conveying, preventing wrinkles or uneven stretching, thereby improving the quality of the filter paper substrate and providing a good foundation for subsequent processing steps.

[0057] Furthermore, the paper feeding module also includes a first telescopic mechanism 604 and a first rotary drive mechanism 605. The first telescopic mechanism 604 is used to adjust the paper feeding gap between the pressure roller 602 and the drive roller 603. The first telescopic mechanism 604 is mounted on the first mounting frame 601, and its telescopic end is fixedly connected to the roller shaft of the pressure roller 602. The first rotary drive mechanism 605 is used to drive the drive roller 603 to rotate. The first rotary drive mechanism 605 is mounted on the first mounting frame 601 and is drively connected to the roller shaft of the drive roller 603. The first telescopic mechanism 604 can adjust the paper feeding gap between the pressure roller 602 and the drive roller 603, which allows the system to adapt to filter paper substrates of different thicknesses. Whether it is thin or thick filter paper, the filter paper substrate can be subjected to appropriate clamping force between the two by adjusting the paper feeding gap, thereby achieving stable feeding. This adaptability makes the system widely applicable to the production of different types of filter paper substrates. The first rotary drive mechanism 605 is connected to the roller shaft of the drive roller 603 via a transmission device. This transmission method has advantages such as high transmission efficiency and smooth transmission. The application of the first telescopic mechanism 604 and the first rotary drive mechanism 605 makes the control of the pressure roller 602 and the drive roller 603 more precise. By precisely controlling the telescopic amount of the first telescopic mechanism 604 and the rotation parameters of the first rotary drive mechanism 605, precise adjustment of the paper feed gap and the filter paper substrate conveying speed can be achieved, which helps to improve the stability and quality of the filter paper substrate conveying. Further, the paper pulling unit 600 includes a first guide module located downstream of the paper pulling module. The first guide module includes a first guide roller 606 and a second guide roller 607. The first guide roller 606 and the second guide roller 607 are parallel and spaced apart on the first mounting frame 601, and the filter paper substrate is passed between the first guide roller 606 and the second guide roller 607. By adding the first guide roller 606 and the second guide roller 607, the smooth conveying of the filter paper substrate is facilitated.

[0058] Furthermore, the paper-pulling unit 600 also includes a tension detection sensor, which is mounted on the first mounting frame 601 and is used to detect the tension of the filter paper substrate. The specific structure of the tension detection sensor is prior art and will not be described in detail here.

[0059] Furthermore, a second guide rail 102 extending along the first direction is provided on the frame 100. The paper cutting unit 500 includes a second mounting frame 501 and a paper cutting module. The second mounting frame 501 is slidably disposed on the second guide rail 102 and can move along the first direction. The paper cutting module includes a second telescopic mechanism 502, a first cutter 503, and a second cutter 504. The first cutter 503 and the second cutter 504 are spaced apart on the second mounting frame 501, forming a paper cutting station between them. The telescopic end of the second telescopic mechanism 502 is connected to the first cutter 503. The second guide rail 102 provides accurate guidance for the movement of the second mounting frame 501, enabling the paper cutting unit 500 to move precisely to a designated position along the first direction. At the same time, the spaced arrangement of the first cutter 503 and the second cutter 504 on the second mounting frame 501 and the formation of the paper cutting station ensure that the filter paper is in an accurate position during cutting. The second telescopic mechanism 502 precisely drives the first cutter 503, enabling the first cutter 503 to cooperate with the second cutter 504 according to a predetermined trajectory and force, thereby achieving high-precision cutting of the filter paper, reducing cutting errors, and improving the quality of the filter paper product.

[0060] Furthermore, the paper cutting unit 500 also includes a second guide module and a third guide module. The second guide module is located upstream of the paper cutting module and includes a third guide roller 505, a fourth guide roller 506, a third telescopic mechanism 507, and a second rotary drive mechanism 508. The third guide roller 505 and the fourth guide roller 506 are arranged parallel to each other and spaced apart on the second mounting frame 501. The third telescopic mechanism 507 is used to adjust the paper passage gap between the third guide roller 505 and the fourth guide roller 506. The third telescopic mechanism 507 is disposed on the second mounting frame 501, and its telescopic end is connected to the roller shaft of the third guide roller 505. The second rotary drive mechanism 508 is used to drive the fourth guide roller 506 to rotate. The second rotary drive mechanism 508 is disposed on the second mounting frame 501 and is drively connected to the roller shaft of the fourth guide roller 506. The third guide module is located downstream of the paper cutting module. The third guide module includes a fifth guide roller 509 and a sixth guide roller 5010, which are parallel and spaced apart on the second mounting frame 501. By adding the second and third guide modules, the conveying stability of the filter paper substrate on the paper cutting unit 500 is further improved.

[0061] like Figure 5As shown, this embodiment also provides a non-stop roll changing method, which applies the aforementioned non-stop roll changing system for filter paper substrates to change and rewind the filter paper substrates. The method includes the following steps: S1, System initialization and startup: The first winding shaft 200 begins winding. The required length of the filter paper substrate is measured by a meter counter 400. The meter counter 400 employs high-precision sensor technology to accurately capture the movement distance of the filter paper substrate and feeds the data back to the control system in real time. This method ensures that the required length of the filter paper substrate is accurately measured according to preset requirements, providing precise data support for subsequent roll changing operations. S2. After the meter length is reached, the paper pulling unit 600 intervenes to provide a constant tension to the filter paper substrate, and the paper cutting unit 500 simultaneously cuts the filter paper substrate, and the first winding shaft 200 stops rotating; S3. After the filter paper substrate is cut, in order to ensure the smooth progress of subsequent operations, the paper pulling unit 600 and the paper cutting unit 500 will not stop working. The paper pulling unit 600 and the paper cutting unit 500 continue to convey a certain length of paper head. This extra conveyed paper head provides the operator with sufficient operating space and time, enabling them to perform subsequent fixing operations more calmly and accurately. S4. After the operator secures the paper head to the second take-up shaft 300, the second take-up shaft 300 operates at high speed and tightens the buffered filter paper substrate. Once the buffered filter paper substrate is cleared, the second take-up shaft 300 switches to a slow speed, matching the original supply speed of the filter paper substrate. Simultaneously, the paper pulling unit 600 exits and ends the paper pulling process. S5. Until the second take-up shaft 300 completes winding, step S2 is repeated in the same pattern to begin the next roll change operation, and this cycle continues. This cyclical roll change method allows the entire production process to continue uninterrupted, enabling roll changes to be completed without stopping the machine. This not only avoids the scrapping of filter paper substrate but also helps improve production efficiency.

[0062] Furthermore, in step S1, before the length of the wound filter paper substrate reaches a preset value, the paper cutting unit 500 is moved to one side of the second winding shaft 300 in advance. To further improve roll-changing efficiency, the system moves the paper cutting unit 500 to one side of the second winding shaft 300 in advance before the length of the wound filter paper substrate reaches the preset value. The pre-positioned paper cutting unit 500 reduces the distance and time the operator needs to move the paper head to the second winding shaft 300, thereby shortening the entire roll-changing cycle and improving production efficiency.

[0063] Furthermore, in step S4, after the buffered filter paper substrate is cleaned, the tension sensor on the paper pulling unit 600 is triggered. When the value detected by the tension sensor is greater than the system's preset tension value, it indicates that the tension of the buffered filter paper substrate has returned to normal, and the second take-up shaft 300 switches to a slow speed. This ensures proper handling of the buffered filter paper substrate, avoiding problems such as stretching, deformation, or breakage of the filter paper substrate due to improper buffering, thereby reducing the scrap of filter paper substrates.

[0064] Obviously, 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 invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments 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. A filter paper substrate non-stop roll changing system, characterized in that, include: A frame (100) is provided with a first winding shaft (200) and a second winding shaft (300) spaced apart along a first direction. The first winding shaft (200) and the second winding shaft (300) can work independently, and the filter paper substrate can be wound by the first winding shaft (200) or the second winding shaft (300). A meter counter (400) is disposed on the frame (100) and the meter counter (400) is used to detect the winding length of the filter paper substrate; A paper cutting unit (500) is disposed on the frame (100) and can move back and forth between the first winding shaft (200) and the second winding shaft (300) in a first direction. When the winding length of the filter paper substrate meets a preset value, the paper cutting unit (500) can cut the filter paper substrate. A paper-pulling unit (600) is disposed on the frame (100) and is capable of sliding along a first direction. The paper-pulling unit (600) is used to intervene in and pull the filter paper substrate.

2. The filter paper substrate non-stop roll changing system according to claim 1, characterized in that, The frame (100) is provided with a first guide rail (101) extending along a first direction, and the paper pulling unit (600) includes: The first mounting frame (601) is slidably mounted on the first guide rail (101) and is capable of moving along the first direction; The paper-pulling module includes a pressure roller (602) and a drive roller (603). The pressure roller (602) and the drive roller (603) are arranged parallel to each other and spaced apart on the first mounting frame (601). The pressure roller (602) and the drive roller (603) are used to pass through the filter paper substrate. The pressure roller (602) can move closer to or further away from the drive roller (603).

3. The filter paper substrate non-stop roll changing system according to claim 2, characterized in that, The paper-pulling module also includes: The first telescopic mechanism (604) is used to adjust the paper passage gap between the paper pressure roller (602) and the drive roller (603). The first telescopic mechanism (604) is disposed on the first mounting frame (601), and the telescopic end of the first telescopic mechanism (604) is fixedly connected to the roller shaft of the paper pressure roller (602). A first rotary drive mechanism (605) is used to drive the active roller (603) to rotate. The first rotary drive mechanism (605) is disposed on the first mounting frame (601) and is connected to the roller shaft of the active roller (603) via a drive connection.

4. The filter paper substrate non-stop roll changing system according to claim 3, characterized in that, The paper pulling unit (600) includes: The first guide module is located downstream of the paper pulling module. The first guide module includes a first guide roller (606) and a second guide roller (607). The first guide roller (606) and the second guide roller (607) are arranged parallel to each other and spaced apart on the first mounting frame (601). The first guide roller (606) and the second guide roller (607) are used to pass through the filter paper substrate.

5. The filter paper substrate non-stop roll changing system according to claim 2, characterized in that, The paper pulling unit (600) also includes: A tension detection sensor is disposed on the first mounting frame (601), and the tension detection sensor is used to detect the tension of the filter paper substrate.

6. The filter paper substrate non-stop roll changing system according to claim 1, characterized in that, The frame (100) is provided with a second guide rail (102) extending along a first direction, and the paper cutting unit (500) includes: The second mounting frame (501) is slidably mounted on the second guide rail (102) and is capable of moving along the first direction; The paper cutting module includes a second telescopic mechanism (502), a first cutter (503) and a second cutter (504). The first cutter (503) and the second cutter (504) are spaced apart on the second mounting frame (501), and a paper cutting station is formed between the first cutter (503) and the second cutter (504). The telescopic end of the second telescopic mechanism (502) is connected to the first cutter (503).

7. The filter paper substrate non-stop roll changing system according to claim 6, characterized in that, The paper cutting unit (500) further includes: The second guide module is located upstream of the paper cutting module. The second guide module includes a third guide roller (505), a fourth guide roller (506), a third telescopic mechanism (507), and a second rotary drive mechanism (508). The third guide roller (505) and the fourth guide roller (506) are parallel and spaced apart on the second mounting frame (501). The third telescopic mechanism (507) is used to adjust the paper feed gap between the third guide roller (505) and the fourth guide roller (506). The third telescopic mechanism (507) is located on the second mounting frame (501). The telescopic end of the third telescopic mechanism (507) is connected to the roller shaft of the third guide roller (505). The second rotary drive mechanism (508) is used to drive the fourth guide roller (506) to rotate. The second rotary drive mechanism (508) is located on the second mounting frame (501). The second rotary drive mechanism (508) is connected to the roller shaft of the fourth guide roller (506) in a transmission connection. The third guide module is located downstream of the paper cutting module. The third guide module includes a fifth guide roller (509) and a sixth guide roller (5010). The fifth guide roller (509) and the sixth guide roller (5010) are arranged parallel to each other and spaced apart on the second mounting frame (501).

8. A roll changing method without stopping the machine, characterized in that, The filter paper substrate non-stop rewinding system as described in any one of claims 1-7 is used for rewinding and winding the filter paper substrate, comprising the following steps: S1. System initialization starts, the first take-up shaft (200) starts to take up the winding, and the required length of filter paper substrate is measured by the meter counter (400); S2. After the meter length is reached, the paper pulling unit (600) intervenes to provide a constant tension to the filter paper substrate, the paper cutting unit (500) cuts the filter paper substrate simultaneously, and the first winding shaft (200) stops rotating. S3. After the filter paper substrate is cut, the paper pulling unit (600) and the paper cutting unit (500) continue to convey a certain length of paper head; S4. After the operator fixes the paper head to the second take-up shaft (300), the second take-up shaft (300) is in a fast state and tightens the buffered filter paper substrate. When the buffered filter paper substrate is cleaned up, the second take-up shaft (300) switches to a slow state. The slow state is consistent with the original supply speed of the filter paper substrate. The paper pulling unit (600) exits synchronously and ends the paper pulling. S5. Continue until the second take-up reel (300) has finished winding. Repeat step S2 in the same pattern to start the next round of roll changing, and continue the cycle.

9. The non-stop roll changing method according to claim 8, characterized in that, In step S1, before the length of the wound filter paper substrate reaches a preset value, the paper cutting unit (500) is moved to one side of the second winding shaft (300).

10. The non-stop roll changing method according to claim 8, characterized in that, In step S4, after the buffered filter paper substrate is cleaned, the tension sensor on the paper pulling unit (600) will be triggered. When the value detected by the tension sensor is greater than the system preset tension value, the speed of the second winding shaft (300) will switch to slow speed.

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