Nonwoven fabric connection stock device and wet tissue production line

Abstract

The application discloses a non-woven fabric connecting and storing device and a wet tissue production line, and relates to the technical field of wet tissue production equipment. The connecting and storing device comprises a mounting frame, a buffer assembly and an adjusting assembly. The buffer assembly comprises at least one first guide roller and at least one second guide roller. The material belt forms a buffer path by winding through the first guide roller and the second guide roller. The adjusting assembly can drive the first guide roller and the second guide roller to move closer to or away from each other, so as to adjust the length of the buffer path and realize the buffering and releasing of the material belt. Preferably, the buffer assembly adopts multiple groups of guide rollers to form a serpentine buffer path. The adjusting assembly adopts a quadrilateral linkage mechanism to realize synchronous adjustment in cooperation with a guide mechanism and a driving cylinder. The application further discloses a wet tissue production line comprising the connecting and storing device. The application can continuously supply material to the subsequent process during the replacement of the material storage roll and the connection of the material belt, realize non-stop connection, and improve the production continuity, equipment utilization rate and wet tissue production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of wet wipe production, and more specifically, it relates to a non-woven fabric splicing and storage device. This invention also relates to a wet wipe production line. Background Technology

[0002] Wet wipes are widely used in daily cleaning, medical care, infant care, and public health. Their production process typically involves multiple continuous processing steps, including nonwoven fabric unwinding, soaking, folding, cutting, and packaging. Nonwoven fabric is usually supplied to the production line in roll form, continuously unwound from stock rolls and conveyed to subsequent processing equipment. Because wet wipe production lines are continuous and highly automated, with each process interconnected, an interruption in the initial material supply requires subsequent processes such as soaking, folding, cutting, and packaging to stop, impacting production rhythm, reducing efficiency, and increasing equipment start-up and shutdown losses.

[0003] In actual production, the length of a single stock roll is limited. After the stock roll is unwound, a new stock roll is needed to continue feeding. Typically, the tail of the previous stock roll is connected to the head of the next stock roll to restore continuous feeding. However, during the transition between old and new stock rolls, it is inevitable to go through operations such as unwinding the old roll, positioning the new roll, positioning the stock roll, and connecting the head and tail. There is a certain time interval in this process. During this period, because the previous stock roll has stopped feeding while the next stock roll has not yet been connected, subsequent production equipment lacks material supply and has to stop operating, causing the entire production line to stop and wait, thus affecting production efficiency.

[0004] To reduce downtime, existing technologies typically employ manual methods to expedite the splicing process or utilize automated splicing mechanisms to shorten roll changeover time. However, regardless of the method, both still require a certain amount of operation time. When splicing time is affected by factors such as operational precision, equipment response speed, or roll specifications, interruptions in material supply are still difficult to avoid. Furthermore, to minimize splicing time, operators often need to complete the strip positioning and connection within a short period, which not only increases operational difficulty but also easily leads to splicing position deviations, decreased connection quality, or even splicing failures, further impacting production continuity.

[0005] On the other hand, some existing equipment achieves a certain length of material strip buffer by setting up a simple material storage mechanism, but its buffering capacity is limited, the buffering path is usually not adjustable, and it is difficult to flexibly adjust the buffering length according to different roll diameters, different production speeds, or different connection times, resulting in insufficient buffered material strip or large equipment size. At the same time, some buffering mechanisms have poor motion stability, which can easily cause material strip tension fluctuations, deviations, or wrinkles during changes in buffering length, which is not conducive to the stable control of subsequent processing quality. Summary of the Invention

[0006] The purpose of this invention is to provide a nonwoven fabric splicing and storage device to solve the technical problem that affects production efficiency in the existing wet wipe production process due to the switching between new and old rolls of material.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a nonwoven fabric splicing and storage device, comprising: Mounting rack; A buffer component, disposed on the mounting frame, includes at least one first guide roller and at least one second guide roller arranged sequentially along the conveying direction of the nonwoven fabric strip. The conveying strip passes around the first guide roller and the second guide roller to form a buffer path for the strip between the first guide roller and the second guide roller. An adjustment component connects the mounting bracket and the buffer component. The adjustment component can drive the first guide roller and the second guide roller to move closer to each other or further away from each other to change the length of the buffer path. The buffer component is located on the discharge side of the material storage roll of the material strip. When the first guide roller and the second guide roller move away from each other, the buffer path increases to store the material strip. When the first guide roller and the second guide roller move closer to each other, the buffer path decreases to release the buffered material strip.

[0008] In one feasible implementation, the first guide roller and the second guide roller are both multiple rollers spaced apart along the conveying direction of the material belt.

[0009] In one feasible implementation, the adjustment assembly includes multiple sets of quadrilateral linkage mechanisms arranged along the conveying direction of the material belt. Each set of quadrilateral linkage mechanisms is interconnected by a hinge shaft. The first guide roller and the second guide roller are respectively installed at the upper and lower ends of the quadrilateral linkage mechanism. When the quadrilateral linkage mechanism deforms, it drives the first guide roller and the second guide roller to move synchronously.

[0010] In one feasible implementation, the adjustment assembly further includes guide rods and sliders evenly disposed on the mounting bracket. The guide rods extend in a horizontal direction, and the sliders have through holes that are slidably adapted to the guide rods. There are multiple sliders, and each slider is fixedly connected to each of the hinge shafts. As the sliders move closer to or further away from each other, the quadrilateral linkages deform to drive the first and second guide rollers to move synchronously.

[0011] In one feasible implementation, the adjustment assembly further includes a drive cylinder, the cylinder body of which is fixed to the mounting bracket, the output end of which is connected to any one of the sliders, and the extension and retraction direction of the drive cylinder is parallel to the guide rod to drive the quadrilateral linkage mechanism to unfold or retract.

[0012] In one feasible implementation, both the drive cylinder and the adjustment assembly are located on the side of the mounting bracket away from the buffer assembly.

[0013] In one feasible implementation, the buffer component includes at least two sets of first guide rollers and at least two sets of second guide rollers, with the material strip alternately winding around the first guide rollers and the second guide rollers to form a serpentine buffer path.

[0014] Compared with the prior art, the beneficial effects of the nonwoven fabric splicing and storage device provided by the present invention are as follows: First, the nonwoven fabric splicing and storage device provided in this application, by setting a buffer component and an adjustment component, enables the nonwoven fabric strip to form a buffer path with an adjustable length. The material strip is buffered during the normal unwinding process of the storage roll, and the buffered material strip is released after the original storage roll is unwound to maintain the continuous supply of material to subsequent equipment. This provides a time margin for the splicing of new and old storage rolls, avoids production line shutdown due to the replacement of storage rolls, and improves the efficiency of roll splicing and continuous production capacity.

[0015] Secondly, the first and second guide rollers are arranged in multiple sets at intervals, and the material belt forms a serpentine buffer path, which obtains a larger buffer length in the limited installation space, improves the buffering capacity of the device, and makes the force on the material belt more uniform between each guide roller, reducing the situation of material belt deviation, wrinkles and excessive local tension, and improving the stability of material belt conveying.

[0016] The adjustment assembly employs multiple sets of quadrilateral linkage mechanisms linked together and connected by hinged shafts to form a synchronous motion structure. This allows each guide roller to move closer or further away synchronously, resulting in a uniform change in the overall buffer path. This prevents asynchronous movement of local guide rollers from affecting the material belt operation and improves the stability and reliability of the buffer adjustment process. The guiding cooperation between the guide rod and the slider further limits the motion trajectory of each linkage mechanism, ensuring that the guide rollers always move in parallel, improving the accuracy of the buffer path adjustment, and reducing motion jamming and swaying.

[0017] Using a drive cylinder as the power source, the entire linkage mechanism can be synchronously driven by a single slider. This simplifies the transmission structure and reduces manufacturing costs and maintenance difficulty while ensuring rapid adjustment of the buffer path. The drive mechanism is located on the side of the buffer assembly away from the material belt, separating the drive mechanism from the material belt conveying area, reducing interference from moving parts on the material belt operation, and facilitating equipment maintenance and repair while extending the overall service life. In this way, this application effectively solves the problem of material shortage and downtime in subsequent production equipment during existing roll material changeovers, enabling uninterrupted production and improving production efficiency and equipment utilization.

[0018] Another objective of this invention is to provide a wet wipe production line, comprising a material storage and unwinding mechanism, a connecting station, a non-woven fabric connecting and storage device as described above, and a wet wipe processing mechanism arranged in sequence. The nonwoven fabric splicing and storage device is used to form a buffer strip when the storage and unwinding mechanism releases the material strip, and to release the buffer strip during the replacement of the storage roll, so as to maintain the continuous supply of material to the wet paper towel processing mechanism.

[0019] In one feasible implementation, the connecting station is used to connect the tail material of the previous storage roll to the first material of the next storage roll, and the connecting station is located upstream of the nonwoven fabric connecting and storage device.

[0020] In one feasible implementation, the wet wipe processing mechanism includes an impregnation device, a folding device, and a cutting and packaging device, wherein the nonwoven fabric splicing and storage device continuously feeds a strip of material to the impregnation device during splicing.

[0021] Compared to existing technologies, the wet wipe production line of this invention sets the non-woven fabric splicing and storage device between the storage and unwinding mechanism and the wet wipe processing mechanism, and uses it in conjunction with the splicing station. This allows the production line to continue supplying materials to subsequent processes by relying on the buffer belt during the replacement of the storage roll, so as to realize the synchronous operation of roll splicing and continuous wet wipe production.

[0022] During production, when there is little material remaining in the stock roll, a buffer strip can be added in advance. After the original stock roll is exhausted, the buffer strip is continuously released by the connecting stock device, providing sufficient time for the connecting station to complete the connection between the tail material and the first material of the new roll. Throughout the process, the processes of soaking, folding, cutting and packaging do not require machine downtime, thereby avoiding the interruption of the entire production line due to roll changing, and improving production continuity and efficiency.

[0023] Because subsequent processing equipment operates stably throughout, it reduces equipment impact and control errors caused by frequent start-ups and shutdowns. It also minimizes issues such as fluctuations in liquid volume, folding position deviations, inconsistent cutting lengths, and packaging rhythm disruptions caused by restarting after a shutdown, thus improving the consistency of wet wipe product quality and the finished product qualification rate. Simultaneously, the splicing station can complete the connection between the old and new feed strips during the continuous feeding of the buffer strip, without shortening the splicing time. This improves the splicing success rate and reduces the risk of downtime caused by human error or automatic splicing failure.

[0024] The entire production line achieves an organic combination of roll material change and continuous production through the coordinated operation of the material storage and unwinding mechanism, the connecting station, the connecting and storing device, and the wet wipe processing mechanism. While ensuring product quality stability, it improves equipment utilization and capacity, reduces downtime time loss and production costs, and has good industrial application value. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the nonwoven fabric splicing and storage device provided by the present invention. Figure 2 A schematic diagram of the overall structure of the nonwoven fabric splicing and storage device provided by the present invention from another perspective; Figure 3 This is a schematic diagram showing the connection relationship between the buffer component and the adjustment component in the nonwoven fabric splicing and storage device of the present invention. Figure 4 This is a schematic diagram of the connection relationship between the buffer component and the adjustment component in the nonwoven fabric splicing and storage device of the present invention from another perspective.

[0026] In the picture: 1. Mounting frame; 11. Guide rollers; 12. Drive motor; 13. Material storage roll; 2. Buffer assembly; 21. First guide roller; 22. Second guide roller; 3. Adjustment component; 31. Quadrilateral linkage mechanism; 311. Hinge shaft; 32. Guide rod; 33. Slider; 34. Drive cylinder. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0028] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "back" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0029] Furthermore, in the description of this invention, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention in light of the specific circumstances.

[0030] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0031] Non-woven fabric rolls can be made into wet wipes. During the preparation process, the non-woven fabric strip is wound onto a storage roll 13. The storage roll 13 is rotated to complete the discharge. The discharged roll is then processed into wet wipes.

[0032] However, after the material is discharged, other stock rolls 13 need to take over the previous operation. There is a time interval during the transition between the old and new stock rolls 13. During this time interval, the subsequent production line lacks material supply and cannot start production, which has an adverse impact on the production efficiency of wet wipes.

[0033] In view of this, this application aims to provide a nonwoven fabric splicing device, which is arranged on one side of the storage roll 13 and downstream of the output strip. It includes at least one first roller and at least one second roller that can move closer or further apart from each other. During the transmission process, the nonwoven fabric strip passes around the first and second rollers. When the storage roll 13 near the nonwoven fabric is insufficient, the storage roll 13 can be fed out more quickly. Simultaneously, during this accelerated feeding process, the first and second rollers move further apart to increase the length of the strip passing around them. When the storage roll 13 has finished feeding, the buffered strip can be released by shortening the length of the first and second rollers. At this time, the tail of the storage roll 13 is not subjected to traction, allowing it to complete the splicing with other storage rolls 13 with more time redundancy. This allows for material splicing without interrupting the supply, improving the production efficiency of wet wipes.

[0034] Based on the overall design concept described above, please refer to Figure 1 and Figure 4 The nonwoven fabric splicing and storage device provided by the present invention will now be described. This nonwoven fabric splicing and storage device includes a mounting frame 1, a buffer assembly 2, and an adjusting assembly 3. The buffer assembly 2 is mounted on the mounting frame 1 and includes at least one first guide roller 21 and at least one second guide roller 22 arranged sequentially along the material conveying direction of the nonwoven fabric strip. The conveying strip passes around the first guide roller 21 and the second guide roller 22 to form a buffer path between the first guide roller 21 and the second guide roller 22. The adjusting assembly 3 connects the mounting frame 1 and the buffer assembly 2. The adjusting assembly 3 can drive the first guide roller 21 and the second guide roller 22 to move closer to or further away from each other to change the length of the buffer path. The buffer assembly 2 is located on the discharge side of the material storage roll 13. When the first guide roller 21 and the second guide roller 22 move further away from each other, the buffer path increases to store the material strip; when the first guide roller 21 and the second guide roller 22 move closer to each other, the buffer path decreases to release the buffered material strip.

[0035] The adjusting component 3 can be configured as a telescopic rod, which is mounted on the mounting frame 1 and connected at both ends to the first guide roller 21 and the second guide roller 22, respectively, so as to drive the first guide roller 21 and the second guide roller 22 to move closer or further apart. More specifically, the telescopic rod can be a cylinder, a hydraulic cylinder, etc., which will not be elaborated here.

[0036] Compared with existing technologies, this embodiment, by setting up a buffer component 2 and an adjustment component 3, enables the nonwoven fabric strip to form a transmission path with an adjustable length during normal conveying. When the remaining material in the storage roll 13 is low, the storage roll 13 can be controlled to unwind faster, while the adjustment component 3 drives the buffer component 2 to increase the winding length of the strip, temporarily storing the extra strip in the buffer path. After the original storage roll 13 is completely unwound, the buffer path is shortened to continuously release the buffered strip, thus maintaining continuous material supply to subsequent equipment. Since the buffered strip can replace the storage roll 13 for continuous material supply during the connection period, sufficient time can be provided for the connection between the old and new rolls, avoiding production line downtime due to roll changes, thereby solving the problem of material supply interruption and reduced production efficiency during roll connection in the existing wet wipe production process.

[0037] Based on the above embodiments, a feasible implementation method is proposed, such as... Figure 1 As shown, the first guide roller 21 and the second guide roller 22 are both multiple rollers spaced apart along the conveying direction of the material belt. In this embodiment, multiple first guide rollers 21 and second guide rollers 22 are used and arranged at intervals along the conveying direction of the material belt, so that the material belt can form a continuous multi-segment winding path between the multiple guide rollers. Compared with a single set of guide rollers, a larger buffer length can be obtained under the same equipment size.

[0038] Meanwhile, multiple sets of guide rollers support the material belt, which makes the belt more evenly stressed, reduces local bending and tension concentration, improves the operational stability during the buffering process, thereby further enhancing the continuous feeding capacity during the connection period, and taking into account the adaptability under different buffering length requirements.

[0039] Based on the above embodiments, a feasible implementation method is proposed, such as... Figure 2 and Figure 3 As shown, the adjusting assembly 3 includes multiple sets of quadrilateral linkage mechanisms 31 arranged along the conveying direction of the material belt. Each set of quadrilateral linkage mechanisms 31 is interconnected by a hinge shaft 311. The first guide roller 21 and the second guide roller 22 are respectively installed at the upper and lower ends of the quadrilateral linkage mechanism 31. When the quadrilateral linkage mechanism 31 deforms, it drives the first guide roller 21 and the second guide roller 22 to move synchronously. In this embodiment, each set of quadrilateral linkage mechanisms 31 is arranged along the conveying direction of the material belt and interconnected by hinge shafts 311, enabling each set of mechanisms to maintain synchronous deformation during movement, thereby driving each first guide roller 21 and second guide roller 22 to move closer or further away synchronously. Because the overall movement of the guide rollers is consistent, the buffer paths of each segment can change synchronously, avoiding uneven tension distribution or deviation of the material belt caused by asynchronous movement of local guide rollers. This improves the stability and reliability of the buffer path adjustment process, while also making the change in buffer length smoother, ensuring the continuous operation of the connection process.

[0040] Based on the above embodiments, a feasible implementation method is proposed. The adjustment component 3 further includes guide rods 32 and sliders 33, which are both disposed on the mounting frame 1. The guide rods 32 extend in the horizontal direction, and the sliders 33 have through holes that are adapted to slide with the guide rods 32. There are multiple sliders 33, and each slider 33 is fixedly connected to each hinge shaft 311. As each slider 33 moves closer to or further away from each other, each quadrilateral connecting rod deforms to drive the first guide roller 21 and the second guide roller 22 to move synchronously.

[0041] In the specific implementation of the above embodiments, the guide rod 32 and the slider 33 cooperate with each other to provide guiding constraints on each hinge shaft 311, so that the slider 33 moves only in a predetermined direction and drives each quadrilateral linkage mechanism 31 to expand or retract synchronously. This guiding structure not only restricts the movement trajectory of the linkage mechanism and reduces the possibility of swaying or jamming during movement, but also helps to ensure that each guide roller always moves in parallel, so that the buffer path length can change as expected, thereby improving the movement accuracy and operational stability of the entire buffer mechanism.

[0042] Based on the above embodiments, a feasible implementation method is proposed. The adjustment component 3 further includes a drive cylinder 34. The cylinder body of the drive cylinder 34 is fixed to the mounting bracket 1. The output end of the drive cylinder 34 is connected to any one of the sliders 33. The extension and retraction direction of the drive cylinder 34 is parallel to the guide rod 32 to drive the quadrilateral linkage mechanism 31 to unfold or retract. In this embodiment, the drive cylinder 34 directly acts on one of the sliders 33, and the slider 33 drives multiple quadrilateral linkage mechanisms 31 to move synchronously, thereby achieving unified adjustment of the position of all guide rollers. Since only a single power source is used to complete the synchronous drive of the entire buffer component 2, the number of drive mechanisms can be effectively reduced, the overall transmission structure can be simplified, and the increase or decrease of the buffer path can be easily controlled, improving the equipment response speed and control reliability, and reducing manufacturing and maintenance costs.

[0043] Based on the above embodiments, a feasible implementation method is proposed, in which the drive cylinder 34 and the adjustment component 3 are both located on the side of the mounting frame 1 away from the buffer component 2. This arrangement, with the drive cylinder 34 and the adjustment component 3 both located on the side of the mounting frame 1 away from the buffer component 2, separates the material belt running area from the drive mechanism. On the one hand, this avoids interference between moving parts and the material belt, improving the safety of material belt conveying; on the other hand, it facilitates the installation, maintenance, and repair of the drive mechanism, while reducing the adverse effects of lint, liquids, etc., on the drive mechanism, thus improving the overall stability and service life of the machine.

[0044] Based on the above embodiments, a feasible implementation method is proposed, wherein the buffer component 2 includes at least two sets of first guide rollers 21 and at least two sets of second guide rollers 22, and the material belt alternately wraps around the first guide rollers 21 and the second guide rollers 22 to form a serpentine buffer path.

[0045] In this embodiment, the buffer component 2 consists of at least two sets of first guide rollers 21 and at least two sets of second guide rollers 22 forming a serpentine buffer path, enabling the material strip to achieve a longer travel distance within a limited installation space. As each guide roller moves synchronously, the overall serpentine path changes, achieving a larger buffer capacity within a smaller equipment volume, improving buffer efficiency, and providing more time margin for connection operations, thereby further ensuring the continuity of material supply during the wet wipe production process.

[0046] Based on the same inventive concept, the present invention also proposes a wet wipe production line, including a material storage and unwinding mechanism, a connecting station, a non-woven fabric connecting and storage device mentioned above, and a wet wipe processing mechanism arranged in sequence; wherein, the non-woven fabric connecting and storage device is used to form a buffer material strip when the material storage and unwinding mechanism releases the material strip, and to release the buffer material strip during the replacement of the material roll 13, so as to maintain continuous material supply to the wet wipe processing mechanism.

[0047] In this production line, the connecting equipment is positioned between the material storage and unwinding mechanism and the wet wipe processing mechanism. During normal production, the material storage and unwinding mechanism continuously supplies material, while during the material connection process, the connecting equipment releases pre-buffered material strips to maintain the continuous operation of the subsequent processing mechanism. The various components work together to ensure that the production line does not need to stop due to changing the material storage roll 13, achieving simultaneous material connection and continuous production. This not only guarantees production cycle time but also improves wet wipe production efficiency and equipment utilization, solving the problem of capacity loss caused by roll changedowns in traditional production lines.

[0048] Based on the above embodiments, a feasible implementation method is proposed. The connecting station is used to connect the tail material of the previous storage roll 13 to the first material of the next storage roll 13. The connecting station is located upstream of the nonwoven fabric connecting and storage device. This configuration, with the connecting station upstream of the nonwoven fabric connecting and storage device, ensures that the connection operation of the new and old material strips is completed during the continuous feeding of the buffer material strip. Since subsequent processing equipment is still fed by the buffer material strip during the connecting process, the connecting operation will not directly affect subsequent production. Simultaneously, it provides operators or automatic connecting mechanisms with more sufficient connecting time, improving the connecting success rate and reducing the risk of downtime due to connecting failures or rushed operations.

[0049] Based on the above embodiments, a feasible implementation method is proposed. The wet wipe processing mechanism includes an impregnation device, a folding device, and a cutting and packaging device. During the connection process, the non-woven fabric connection and storage device continuously feeds the material strip to the impregnation device. This allows the material strip to continuously complete the impregnation, folding, and subsequent packaging processes. Because each process operates continuously, problems such as uneven impregnation, disordered folding rhythm, or packaging equipment downtime caused by material strip interruptions can be avoided, further ensuring the consistency of wet wipe product quality and improving the continuous production capacity and efficiency of the entire production line.

[0050] In an alternative embodiment, the mounting frame 1 described above serves as a common mounting structure for the storage roll 13, the buffer assembly 2, and the adjustment assembly 3, thereby making the positional relationship between the nonwoven fabric splicing device and the storage roll 13 more reasonable. Furthermore, the mounting frame 1 also integrates a drive motor 12 for rotating the storage roll 13, a guide roller 11 for adjusting the twist angle of the material strip, etc., to ensure smoother material flow from the storage roll 13 to the buffer assembly 2 and from the buffer assembly 2 to the splicing equipment (such as thermoforming welding, ultrasonic welding, etc.).

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A nonwoven fabric splicing and storage device, characterized in that, include: Mounting bracket (1); The buffer assembly (2) is mounted on the mounting frame (1) and includes at least one first guide roller (21) and at least one second guide roller (22) arranged sequentially along the conveying direction of the nonwoven fabric strip. The conveying strip passes around the first guide roller (21) and the second guide roller (22) to form a buffer path for the strip between the first guide roller (21) and the second guide roller (22). Adjustment component (3) connects the mounting frame (1) and the buffer component (2). The adjustment component (3) can drive the first guide roller (21) and the second guide roller (22) to move closer to each other or further away from each other to change the length of the buffer path. The buffer component (2) is located on the discharge side of the storage roll (13) of the material strip. When the first guide roller (21) and the second guide roller (22) move away from each other, the buffer path increases to store the material strip. When the first guide roller (21) and the second guide roller (22) move closer to each other, the buffer path decreases to release the buffered material strip.

2. The nonwoven fabric splicing and storage device according to claim 1, characterized in that, The first guide roller (21) and the second guide roller (22) are both multiple rollers that are spaced apart along the conveying direction of the material belt.

3. The nonwoven fabric splicing and storage device according to claim 2, characterized in that, The adjustment assembly (3) includes multiple sets of quadrilateral linkage mechanisms (31) arranged along the conveying direction of the material belt. Each set of quadrilateral linkage mechanisms (31) is connected to each other through a hinge shaft (311). The first guide roller (21) and the second guide roller (22) are respectively installed at the upper and lower ends of the quadrilateral linkage mechanism (31). When the quadrilateral linkage mechanism (31) deforms, it drives the first guide roller (21) and the second guide roller (22) to move synchronously.

4. The nonwoven fabric splicing and storage device according to claim 3, characterized in that, The adjustment assembly (3) also includes guide rods (32) and sliders (33) evenly disposed on the mounting bracket (1). The guide rods (32) extend in the horizontal direction, and the sliders (33) have through holes that are slidably adapted to the guide rods (32). There are multiple sliders (33), and each slider (33) is fixedly connected to each of the hinge shafts (311). As the sliders (33) move closer to or further away from each other, the quadrilateral linkages (31) deform to drive the first guide roller (21) and the second guide roller (22) to move synchronously.

5. The nonwoven fabric splicing and storage device according to claim 4, characterized in that, The adjustment assembly (3) also includes a drive cylinder (34), the cylinder body of which is fixed to the mounting bracket (1), the output end of which is connected to any one of the sliders (33), and the extension and retraction direction of the drive cylinder (34) is parallel to the guide rod (32) to drive the quadrilateral linkage mechanism (31) to unfold or retract.

6. The nonwoven fabric splicing and storage device according to claim 5, characterized in that, The drive cylinder (34) and the adjustment component (3) are both located on the side of the mounting bracket (1) away from the buffer component (2).

7. The nonwoven fabric splicing and storage device according to claim 1, characterized in that, The buffer component (2) includes at least two sets of first guide rollers (21) and at least two sets of second guide rollers (22), and the material belt alternately wraps around the first guide rollers (21) and the second guide rollers (22) to form a serpentine buffer path.

8. A wet wipes production line, characterized in that, It includes a material storage and unwinding mechanism, a connecting station, a material connecting and storage device for nonwoven fabric as described in any one of claims 1 to 7, and a wet paper towel processing mechanism arranged in sequence. The nonwoven fabric splicing and storage device is used to form a buffer strip when the storage and unwinding mechanism releases the material strip, and to release the buffer strip during the replacement of the storage roll (13) in order to maintain the continuous supply of material to the wet paper towel processing mechanism.

9. The wet wipe production line according to claim 8, characterized in that, The connecting station is used to connect the tail material of the previous storage roll (13) with the first material of the next storage roll (13). The connecting station is located upstream of the nonwoven fabric connecting and storage device.

10. The wet wipe production line according to claim 8, characterized in that, The wet wipe processing mechanism includes an impregnation device, a folding device, and a cutting and packaging device. The nonwoven fabric splicing and storage device continuously feeds a material belt to the impregnation device during splicing.

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