A low linting spunlace composite process

Abstract

The present application relates to a low-linting spunlace composite process, which relates to the technical field of non-woven fabric production. It includes steps of raw material preparation, carding into a web, spunlacing, dipping in slurry, roll pressing, drying, and winding. In the winding step, winding is carried out by a winding device. The winding device includes a winding device, a cutting device, and a lifting device. There are multiple winding devices arranged in a row. The winding device includes a winding shaft, and a core is placed on the winding shaft. The non-woven fabric passes through multiple cores in sequence and is wound around one core. The cutting device is used for cutting the non-woven fabric, and the lifting device is used for driving the non-woven fabric to move up and down. The present application has the advantage of being able to effectively reduce the impact on production efficiency when replacing the core.

Description

Technical Field

[0001] This application relates to the technical field of non-woven fabric production, and in particular to a low-fuzzing spunlace composite process. Background Art

[0002] Non-woven fabric is a material produced by the spunlace process. Existing non-woven fabrics have a fuzzing phenomenon after production. The Chinese invention patent with the publication number CN107700071A discloses a spunlace composite non-woven fabric production process, which greatly reduces the probability of non-woven fabric fuzzing during the production process through the sizing step. After the production of non-woven fabric is completed, the non-woven fabric needs to be wound up. In the existing winding process, after the winding is completed, the wound non-woven fabric needs to be removed, and a new core is placed on the winding shaft, which thus has a certain impact on production efficiency. Summary of the Invention

[0003] In view of the deficiencies of the existing technology, one of the purposes of this application is to provide a low-fuzzing spunlace composite process, which has the advantage of being able to effectively reduce the impact on production efficiency when replacing the core.

[0004] The above object of this application is achieved through the following technical solutions:

[0005] A low-fuzzing spunlace composite process includes steps of raw material preparation, carding into a web, spunlacing, sizing, rolling, drying, and winding. In the winding step, winding is carried out through a winding device. The winding device includes a winding unit, a cutting device, and a lifting device. There are multiple winding units arranged in a row. The winding unit includes a winding shaft, and the core is placed on the winding shaft. The non-woven fabric passes through multiple cores in sequence and is wound around one core. The cutting device is used for cutting the non-woven fabric, and the lifting device is used for driving the non-woven fabric to move up and down.

[0006] By adopting the above technical solutions, in use, since there are multiple winding units, and the non-woven fabric passes through multiple cores in sequence and is wound around one core, when the non-woven fabric on one core reaches a preset amount, the non-woven fabric is cut by the cutting device, and then the winding shaft of another winding unit drives the core to rotate, thereby realizing the winding of the non-woven fabric, and thus being able to effectively reduce the impact on the production efficiency of the non-woven fabric.

[0007] This application can be further configured in a preferred example as follows: A fixing component for fixing the core is installed on the winding shaft. The fixing component includes a positioning rod, and the positioning rod contacts the core for fixing the core.

[0008] By adopting the above technical solutions, the existence of the fixing component can effectively reduce the probability of the core shifting during use.

[0009] In a preferred example, the present application can be further configured as follows: a plurality of holes are provided on the core, one end of the positioning rod is located in the holes, an extending hole is further provided on the winding shaft, the positioning rod extends out from the extending hole, and a moving member for driving the positioning rod to move is further provided on the winding shaft.

[0010] By adopting the above technical solution, that is, in use, the positioning rod is located in the holes on the core, so it can effectively fix the core, and at the same time, the end of the positioning rod does not extend out of the holes, so it can effectively avoid the positioning rod from contacting the non-woven fabric.

[0011] In a preferred example, the present application can be further configured as follows: a fixing member is provided in the positioning rod, and the fixing member is used to fix the non-woven fabric during winding.

[0012] By adopting the above technical solution, the presence of the fixing member makes the effect better in the initial stage of winding the non-woven fabric.

[0013] In a preferred example, the present application can be further configured as follows: the winding device further includes a covering assembly, and the covering assembly is used to adjust the running direction of the non-woven fabric so that the wrap angle between the non-woven fabric and the core is not less than 90°.

[0014] By adopting the above technical solution, the presence of the covering assembly makes the wrap angle between the non-woven fabric and the core larger during use, so when the non-woven fabric needs to be wound, the winding effect of the non-woven fabric is better.

[0015] In a preferred example, the present application can be further configured as follows: the covering assembly includes an upper roller and a lower roller, both the upper roller and the lower roller are movable, and the upper roller and the lower roller are located on both sides of the axis of the winding shaft.

[0016] By adopting the above technical solution, the presence of the upper roller and the lower roller enables the non-woven fabric to be turned, so as to achieve the purpose of a larger wrap angle between the non-woven fabric and the core.

[0017] In a preferred example, the present application can be further configured as follows: a positioning hole is provided on the positioning rod, the fixing member is located in the positioning hole, the fixing member includes a fixing needle and an elastic member, one end of the elastic member is connected to the fixing needle, and the other end is connected to the positioning rod.

[0018] By adopting the above technical solution, in use, when the winding shaft rotates, when the centrifugal force is greater than the pulling force of the elastic member on the fixing needle, the fixing needle will extend out of the positioning hole and penetrate into the non-woven fabric, so as to achieve fixation, and under the rotation of the winding shaft, drive the core to rotate so as to wind the non-woven fabric.

[0019] In a preferred embodiment, the present application can be further configured as follows: the cutting device includes a cutting knife and a clamping assembly. The clamping assembly is used for clamping the non-woven fabric, and the cutting knife is used for cutting the clamped non-woven fabric.

[0020] By adopting the above technical solution, the presence of the cutting assembly can cut the non-woven fabric, and the presence of the clamping assembly can also clamp the non-woven fabric, resulting in a better cutting effect.

[0021] In a preferred embodiment, the present application can be further configured as follows: the clamping assembly includes a lifting frame and a fixed frame. The cutting knife is installed on the fixed frame, and the cutting device further includes a moving assembly for driving the lifting frame and the fixed frame to move.

[0022] By adopting the above technical solution, during use, the lifting frame drives the cutting knife to move until the cutting knife contacts the non-woven fabric and completes the cutting.

[0023] In a preferred embodiment, the present application can be further configured as follows: there are multiple sets of lifting devices, which are arranged at intervals up and down. The lifting device includes a lifting roller, a moving frame, and a driving member. The driving member is used for driving the moving frame to move up and down. The lifting roller is rotatably installed on the moving frame, and the non-woven fabric passes through multiple lifting rollers in sequence.

[0024] By adopting the above technical solution, during the cutting process, the non-woven fabric is in an unrolled state, but the previous process still continuously produces non-woven fabric. Therefore, adjacent lifting rollers move in opposite directions under the action of the driving member, causing the non-woven fabric to move up or down, so that the non-woven fabric can be temporarily stored, and the previous process does not need to stop working. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of the present application.

[0026] Figure 2 is a schematic cross-sectional structural diagram of the take-up shaft of the present application.

[0027] Reference Numerals: 1, frame; 11, lifting device; 111, driving member; 112, moving frame; 113, lifting roller; 12, cutting device; 13, take-up device; 131, upper roller; 132, lower roller; 2, take-up shaft; 21, protruding hole; 22, mounting post; 3, fixing assembly; 31, positioning rod; 311, positioning hole; 32, positioning plate; 33, telescopic member; 4, fixing member; 41, fixing needle; 42, elastic member; 5, moving assembly; 51, power source; 52, frame body; 6, fixed frame; 61, cutting knife; 71, lifting frame; 72, roller; 73, lower pressing plate; 731, pressing groove. Detailed Description of the Invention

[0028] The present application will be further described in detail below with reference to the accompanying drawings.

[0029] Referring to Figure 1 and Figure 2 , a low-fuzzing spunlace composite process disclosed in the present application includes steps of raw material preparation, carding into a web, spunlacing, dipping in slurry, roll pressing, drying, and winding. In the winding step, winding is performed by a winding device. The winding device includes a frame 1, on which a winding device 13, a cutting device 12, and a lifting device 11 are provided. There are multiple winding devices 13 arranged in a row. The winding device 13 includes a winding shaft 2, and a core is placed on the winding shaft 2. The non-woven fabric sequentially passes through multiple cores and is wound around one core. The cutting device 12 is used to cut the non-woven fabric, and the lifting device 11 is used to drive the non-woven fabric to move up and down.

[0030] The lifting device 11 is arranged between the drying device and the winding device 13. There are multiple groups of lifting devices 11, which are arranged in a row along the conveying direction of the non-woven fabric. The lifting assembly includes a driving member 111, a moving frame 112, and a lifting roller 113. In this embodiment, the driving member 111 can be a cylinder, a hydraulic rod, or an electric push rod. One end of the driving member 111 is fixedly installed on the frame 1, and the other end is fixedly connected to the moving frame 112. The lifting roller 113 is rotatably connected to the moving frame 112. Adjacent driving members 111 are arranged at intervals up and down.

[0031] During use, the non-woven fabric passing through the drying device extends to multiple lifting devices 11 and sequentially passes through multiple lifting rollers 113. When the non-woven fabric needs not to be wound, adjacent driving members 111 drive the moving frame 112 to move in opposite directions, so that the probability that the non-woven fabric passing through the drying device is stacked or falls to the ground in the unwound state can be effectively reduced.

[0032] The rewinding device 13 includes a rewinding shaft 2, which is rotatably installed on the frame 1. The rewinding shaft 2 is hollow, and a plurality of protruding holes 21 are also provided on the rewinding shaft 2. A fixing component 3 is arranged inside the rewinding shaft 2. The fixing component 3 includes a positioning rod 31, a positioning plate 32 and a telescopic member 33. There are multiple groups of the fixing component 3. In this embodiment, there are four groups of the fixing component 3, and the included angles between adjacent fixing components 3 are equal. The positioning rod 31 is fixedly installed on the positioning plate 32. In this embodiment, the telescopic member 33 can be a cylinder, a hydraulic rod or an electric push rod. An installation column 22 for installing the telescopic member 33 is fixedly connected inside the rewinding shaft 2. The telescopic member 33 is installed inside the rewinding shaft 2 to drive the positioning plate 32 to move along the axial direction of the positioning rod 31. A positioning hole 311 is also provided on the positioning rod 31, and a fixing member 4 is arranged inside the positioning hole 311. The fixing member 4 includes an elastic member 42 and a fixing needle 41. The elastic member 42 can be a spring. One end of the elastic member 42 is fixedly connected to the bottom of the fixing needle 41, and the other end is fixedly connected to the bottom of the positioning hole 311. The core for winding the non-woven fabric is sleeved on the rewinding shaft 2, and a hole for the positioning rod 31 to extend into and fit with the outer wall of the positioning rod 31 is provided on the core. The rewinding device 13 further includes a covering component, which includes an upper roller 131 and a lower roller 132. The upper roller 131 and the lower roller 132 are arranged oppositely and rotatably connected to the frame 1. The covering component is arranged on one side of the rewinding shaft 2. The upper roller 131 is located above the horizontal axis of the rewinding shaft 2, and the lower roller 132 is located below the horizontal axis of the rewinding shaft 2, so that the wrap angle of the non-woven fabric passing through the core with respect to the core is not less than 90°. A hydraulic cylinder for driving the upper roller 131 to move up and down is installed on the frame 1, and a hydraulic cylinder for driving the lower roller 132 to move up and down is also installed on the frame 1.

[0033] The cutting device 12 includes a moving component 5, a cutting knife 61 and a clamping component. The clamping component includes a lifting frame 71 and a fixing frame 6. The moving component 5 includes a power source 51 and a frame body 52. The frame body 52 is slidably connected to the frame 1, and the power source 51 drives the frame body 52 to move along the length direction of the frame 1. In this embodiment, the power source 51 can be a cylinder, a hydraulic rod or an electric push rod. Both the lifting frame 71 and the fixing frame 6 are installed on the frame body 52.

[0034] In this embodiment, the cutting knife 61 is a laser emitter, and a linear module for driving the cutting knife 61 to move is installed on the fixing frame 6. There are two lifting frames 71. A hydraulic cylinder is installed on the lower lifting frame 71, and a roller 72 is rotatably installed at the top end of the hydraulic cylinder through a bracket. A hydraulic cylinder is installed on the upper lifting frame 71, and a lower pressing plate 73 is installed on the hydraulic cylinder. A pressing groove 731 adapted to the roller 72 is provided on the surface of the lower pressing plate 73 facing the roller 72, and the surface of the lower pressing plate 73 facing the cutting knife 61 is a plane.

[0035] In use, the non-woven fabric passing through the lifting roller 113 successively passes through the upper roller 131, the core, and the lower roller 132, and passes through the roller 72 located between the two winding shafts 2, and then passes through the next upper roller 131, the core, and the lower roller 132 until it is wound around the core at the outermost end. When a certain amount of non-woven fabric is wound on the winding shaft 2 of the core, the lower pressing plate 73 and the roller 72 move relative to each other so as to clamp the non-woven fabric, and then the cutting knife 61 cuts the non-woven fabric. After the cutting is completed, the lower pressing plate 73 moves upward to cancel the pressing on the non-woven fabric, but the non-woven fabric located between the pressing groove 731 and the roller 72 remains in a bent state within the gap formed by the two. Subsequently, the penultimate winding shaft rotates rapidly so that the fixing needle 41 extends out to fix the non-woven fabric, thereby achieving the purpose of winding the non-woven fabric. During this process, the lifting roller 113 gradually resets. When the lifting roller 113 resets, the non-woven fabric at the lifting roller 113 is in a horizontal state, the rotation speed of the winding shaft 2 decreases, and the fixing needle 41 resets. At the same time, during the winding process, in order to reduce the friction between the non-woven fabric in the conveying state and the non-woven fabric in the winding state, the corresponding roller 72 moves upward, thereby greatly reducing the probability of friction between the two.

[0036] The implementation principle of this embodiment is as follows: In use, the non-woven fabric passes through multiple cores and is wound around the core at the outermost end. When a preset amount of non-woven fabric is wound on the core at the outermost end, the cutting knife 61 cuts the non-woven fabric, and then the penultimate winding shaft rotates at an accelerated speed to achieve the purpose of fixing and winding the non-woven fabric, so that the influence on the production efficiency of the non-woven fabric can be effectively reduced.

[0037] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A low-fuzzing spunlace composite process, including steps of raw material preparation, carding into a web, spunlacing, dipping in slurry, roll pressing, drying, and winding. Characterized in that: In the winding step, winding is performed by a winding device. The winding device includes a winding device (13), a cutting device (12), and a lifting device (11). There are multiple winding devices (13) arranged in a row. The winding device (13) includes a winding shaft (2). The core is placed on the winding shaft (2). The non-woven fabric passes through multiple cores in sequence and winds around one core. The cutting device (12) is used to cut the non-woven fabric. The lifting device (11) is used to drive the non-woven fabric to move up and down. A fixing component (3) for fixing the core is installed on the winding shaft (2). The fixing component (3) includes a positioning rod (31). The positioning rod (31) contacts the core to fix the core. Multiple holes are provided on the core. One end of the positioning rod (31) is located in the holes. An extending hole (21) is also provided on the winding shaft (2). The positioning rod (31) extends out from the extending hole (21). A moving member for driving the positioning rod (31) to move is also provided on the winding shaft (2). A fixing member (4) is provided inside the positioning rod (31). The fixing member (4) is used to fix the non-woven fabric during winding. A positioning hole (311) is provided on the positioning rod (31). The fixing member (4) is located in the positioning hole (311). The fixing member (4) includes a fixing needle (41) and an elastic member (42). One end of the elastic member (42) is connected to the fixing needle (41), and the other end is connected to the positioning rod (31).

2. A low-fuzzing spunlace composite process according to claim 1, Characterized in that: The winding device (13) further includes a covering component. The covering component is used to adjust the running direction of the non-woven fabric so that the wrap angle between the non-woven fabric and the core is not less than 90°.

3. A low-fuzzing spunlace composite process according to claim 2, Characterized in that: The covering component includes an upper roller (131) and a lower roller (132). Both the upper roller (131) and the lower roller (132) are movable. The upper roller (131) and the lower roller (132) are located on both sides of the axis of the winding shaft (2).

4. A low-fuzzing spunlace composite process according to claim 1, Characterized in that: The cutting device (12) includes a cutting knife (61) and a clamping component. The clamping component is used to clamp the non-woven fabric. The cutting knife (61) is used to cut the clamped non-woven fabric.

5. A low-fuzzing spunlace composite process according to claim 4, Characterized in that: The clamping component includes a lifting frame (71) and a fixing frame (6). The cutting knife (61) is installed on the fixing frame (6). The cutting device (12) further includes a moving component (5) for driving the lifting frame (71) and the fixing frame (6) to move.

6. A low-fuzzing spunlace composite process according to claim 5, characterized in that: There are multiple groups of the lifting devices (11), which are arranged at intervals up and down. The lifting device (11) includes a lifting roller (113), a moving frame (112) and a driving member (111). The driving member (111) is used to drive the moving frame (112) to move up and down. The lifting roller (113) is rotatably installed on the moving frame (112), and the non-woven fabric passes through a plurality of lifting rollers (113) in sequence.

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