A punching device for nonwoven fabric processing

Abstract

The utility model discloses a kind of punching device for non-woven fabric processing, it is related to punching device technical field.The utility model includes two fixed plates and the roll-off roller being set between two fixed plates, the inner wall of two the fixed plate is provided with traction roller, further include: punch part, the punch part is set on fixed plate;Adjusting part, the adjusting part is installed on punch part;The punch part includes rotating assembly, and the rotating assembly is set on fixed plate.The utility model sets up punch part, solved the existing punching device in use process, single thick needle directly punctures large aperture, forcibly tears non-woven fabric fiber, not only fiber resistance is big, also can cause hole edge rough, fiber fly, even appear aperture irregular, shrinkage deformation etc. Situation, seriously affect the hole type precision and appearance quality of finished product, subsequent still need additional increase trimming, shaping process, both reduce production efficiency, and promote processing cost problem.

Description

Technical Field

[0001] This utility model belongs to the technical field of punching devices, and in particular relates to a punching device for non-woven fabric processing. Background Technology

[0002] Nonwoven fabric, also known as non-woven cloth, is a new type of material made from fibers such as polypropylene and polyester through processes such as carding, bonding, or needle punching. It does not require spinning and weaving and has the characteristics of being lightweight, breathable, low-cost, environmentally friendly, and biodegradable. It is widely used in hygiene products, protective equipment, geotextiles, and decorative materials. In the processing of nonwoven fabric, the perforation device is a core auxiliary equipment. Its core function is to form uniform holes on the surface of the nonwoven fabric through mechanical puncture, laser, or other methods. On the one hand, perforation can significantly improve the breathability and water permeability of nonwoven fabric. For example, in the flow-guiding layer nonwoven fabric of hygiene products, perforation can accelerate the liquid penetration speed and prevent liquid accumulation.

[0003] However, when existing punching devices are used, the single coarse needle directly pierces the large-diameter hole, which forcibly tears the non-woven fabric fibers. This not only results in high fiber resistance but also causes rough edges on the holes, fiber scattering, and even irregular hole diameters and shrinkage deformation. This seriously affects the hole shape accuracy and appearance quality of the finished product, and additional trimming and shaping processes are required afterward, which reduces production efficiency and increases processing costs. Utility Model Content

[0004] The purpose of this utility model is to provide a punching device for nonwoven fabric processing. By setting a punching part, it solves the problem that when a single coarse needle directly punctures a large-diameter hole in the existing punching device, it will forcibly tear the nonwoven fabric fibers. This not only results in high fiber resistance, but also causes rough edges of the hole, fiber scattering, and even irregular hole diameters and shrinkage deformation. This seriously affects the hole shape accuracy and appearance quality of the finished product. Subsequent trimming and shaping processes are also required, which reduces production efficiency and increases processing costs.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses a punching device for nonwoven fabric processing, comprising two fixed plates and a winding roller disposed between the two fixed plates. Traction rollers are provided on the inner walls of the two fixed plates. The device further includes: a punching section disposed on the fixed plates; an adjusting section mounted on the punching section; the punching section includes a rotating assembly disposed on the fixed plates; and a driving assembly mounted on the fixed plates. The rotating assembly includes a rotating shaft rotatably connected between the two fixed plates, with its left side penetrating the left-side fixed plate, and its outer wall fixed. A perforated roller is connected to the two fixed plates, and auxiliary components are provided on the two fixed plates. A fixed ring is fixedly connected to one side of the two fixed plates that are close to each other. Several hollow rods are fixedly connected to the outer walls of the two fixed rings, and fixed rods are provided on the inner walls of the hollow rods. Four hollow rods are provided on each fixed ring and are arranged in a circumferential array. The auxiliary components include a second rotating shaft that is rotatably connected between the two fixed plates. The left side of the two second rotating shafts passes through the fixed plate located on the left side. A conveying roller is fixedly connected to the outer wall of the two second rotating shafts. The two second rotating shafts and the two conveying rollers are arranged in a mirror image.

[0007] Furthermore, the adjusting part includes a limiting component disposed on the rotating component; and a reset component mounted on the rotating component, wherein the limiting component and the reset component are located only on the right side of the rotating component.

[0008] Furthermore, the driving assembly includes several rotating shafts three rotatably connected to several fixed rods. Each rotating shaft three has a needle roller fixedly connected to its outer wall. Each needle roller is adapted to a perforated roller. A driving component is located on the left fixed plate. Rotating shafts three rotatably connect between corresponding two fixed rods. Each rotating shaft three is independently driven to adapt to the rotation of the perforated roller. The needles on each needle roller are of different sizes and are distributed from small to large. The driving component includes a motor bracket one fixedly connected to the left fixed plate. A motor one is fixedly connected to the inner wall of the motor bracket one. The output shaft of the motor one is fixedly connected to the rotating shaft one via a coupling. A motor bracket two is fixedly connected to the left side of the fixed plate on the left side. A motor two is fixedly connected to the inner wall of the motor bracket two. The output shaft of the motor two is fixedly connected to the rotating shaft two through a coupling. All motors are fixedly connected to the fixed plate on the left side through the motor bracket. Multiple sets of different needle types such as perforated rollers, needle rollers, and rubber rollers are used to form holes with a final product diameter of 2.5-3mm. The principle is that multiple sets of needle rollers surround the perforated roller, and the needle rollers mesh with the perforated roller. The needle rollers and the perforated rollers are temperature controlled. The holes are formed by multiple sets of needle rollers piercing the fabric. Needle roller 1 pierces the perforated roller, needle roller 2 pierces the perforated roller, and needle roller 3 pierces the perforated roller. After multiple piercings of the nonwoven fabric, large holes are formed.

[0009] Furthermore, the limiting component includes a plurality of limiting holes formed on the fixed rod, and a limiting rod is slidably connected to the right side of the hollow rod. The limiting rod extends into the corresponding limiting hole, and the plurality of limiting holes are arranged in a linear array.

[0010] Furthermore, the reset assembly includes a connecting plate fixedly connected to the right side of the limiting hole, a spring sleeved on the outer wall of the limiting rod, the right side of the spring being fixedly connected to the connecting plate, the left side of the spring being fixedly connected to the hollow rod, and the initial state of the spring being a stretched state.

[0011] This utility model has the following beneficial effects:

[0012] 1. By setting up a perforation section, the rolled nonwoven fabric is first installed on the unwinding roller, and its end passes through the traction roller, the front conveyor roller, the perforated roller, and then around the rear conveyor roller in sequence, completing the traction layout. After starting the rotating shaft three, motor one, and motor two, rotating shaft one drives the perforated roller to rotate, rotating shaft two drives the conveyor roller to rotate, and rotating shaft three drives the needle roller to rotate synchronously. The needle roller and the perforated roller are precisely matched, and the piercing needles on the needle roller are precisely inserted into the corresponding holes of the perforated roller as they rotate, piercing the nonwoven fabric simultaneously during the piercing process. Through the step-by-step action of multiple sets of needle rollers, the nonwoven fabric is continuously processed from pre-piercing to final large-hole formation. The piercing method of the needle roller and the perforated roller reduces the impact of the needle body and the tearing damage of the nonwoven fabric. At the same time, the step-by-step piercing design reduces fiber resistance, making the edges of the holes neat and burr-free, improving the quality of the finished product.

[0013] 2. By setting up an adjustment section, when adjusting the height, first pull the connecting plate to the right, causing the limit rod to slide to the right simultaneously. During the sliding process, the spring is stretched, and the limit rod disengages from the original limit hole. Then, pull the fixing rod to adjust the needle roller to a height that matches the perforated roller. After adjustment, release the connecting plate, the spring returns to its original position, and the limit rod slides into the corresponding limit hole, thus fixing the height of the needle roller. This allows for flexible adjustment to adapt to nonwoven fabrics of different thicknesses, expanding the applicability of the equipment. At the same time, it ensures that the needle roller and the perforated roller always maintain the optimal meshing gap, reducing needle wear and damage to the nonwoven fabric during processing.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a partial structural schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a partial cross-sectional view of the perforated part of this utility model;

[0019] Figure 4 This is a partial cross-sectional view of the adjustment part of this utility model;

[0020] Figure 5 This utility model Figure 1 A magnified structural diagram of A in the middle.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 111. Fixed plate; 112. Exit roller; 113. Traction roller; 2. Perforation section; 21. Rotating assembly; 211. Rotating shaft one; 212. Perforated roller; 213. Rotating shaft two; 214. Conveying roller; 215. Fixing ring; 216. Hollow rod; 217. Fixing rod; 22. Drive assembly; 221. Rotating shaft three; 222. Needle roller; 223. Motor bracket one; 224. Motor one; 225. Motor bracket two; 226. Motor two; 3. Adjustment section; 31. Limiting assembly; 311. Limiting hole; 312. Limiting rod; 32. Reset assembly; 321. Connecting plate; 322. Spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 As shown, this utility model is a punching device for non-woven fabric processing, including two fixed plates 111 and a winding roller 112 disposed between the two fixed plates 111. The inner walls of the two fixed plates 111 are provided with traction rollers 113. It also includes: a punching part 2, which is disposed on the fixed plates 111; and an adjusting part 3, which is installed on the punching part 2.

[0025] The punching section 2 includes a rotating assembly 21, which is mounted on a fixed plate 111; and a driving assembly 22, which is mounted on the fixed plate 111. The rotating assembly 21 includes a rotating shaft 211 rotatably connected between two fixed plates 111. The left side of the rotating shaft 211 passes through the fixed plate 111 located on the left side. A perforated roller 212 is fixedly connected to the outer wall of the rotating shaft 211. Auxiliary components are provided on the two fixed plates 111. A fixing ring 215 is fixedly connected to the side of the two fixed plates 111 that is close to each other. A plurality of hollow rods 21 are fixedly connected to the outer walls of the two fixing rings 215 respectively. 6. The inner walls of several hollow rods 216 are each provided with a fixing rod 217. Each fixing ring 215 has four hollow rods 216 arranged in a circular array. The auxiliary components include a second rotating shaft 213 rotatably connected between two fixing plates 111. The left side of each of the two rotating shafts 213 passes through the left-side fixing plate 111. Conveying rollers 214 are fixedly connected to the outer walls of the two rotating shafts 213. The two rotating shafts 213 and the two conveying rollers 214 are arranged in a mirror image. The drive assembly 22 includes several third rotating shafts 221 rotatably connected to several fixing rods 217. Needle rollers 222 are fixedly connected to the outer wall of 221. Several needle rollers 222 are adapted to perforated rollers 212. A driving component is provided on the left fixed plate 111. A rotating shaft 221 is rotatably connected between two corresponding fixed rods 217. Several rotating shafts 221 are independently driven to adapt to the rotation of perforated rollers 212. The needles on each needle roller 222 are of different sizes and are distributed from small to large. The driving component includes a motor bracket 223 fixedly connected to the left fixed plate 111. A motor 224 is fixedly connected to the inner wall of the motor bracket 223. The output of the motor 224 is... The shaft is fixedly connected to the rotating shaft 211 via a coupling. The motor bracket 225 is fixedly connected to the left side of the left fixed plate 111. The motor 226 is fixedly connected to the inner wall of the motor bracket 225. The output shaft of the motor 226 is fixedly connected to the rotating shaft 213 via a coupling. All motors are fixedly connected to the fixed plate 111 on the left side via motor brackets. By setting the perforation part 2 and the piercing method of the needle roller 222 and the perforating roller 212, the impact of the needle body and the tearing damage of the nonwoven fabric are reduced. At the same time, the step-by-step piercing design reduces fiber resistance, making the edge of the hole regular and burr-free, thus improving the quality of the finished product.

[0026] The adjusting part 3 includes a limiting component 31, which is disposed on the rotating component 21; and a resetting component 32, which is mounted on the rotating component 21. The limiting component 31 and the resetting component 32 are located only on the right side of the rotating component 21. The limiting component 31 includes a plurality of limiting holes 311 formed on the fixed rod 217. A limiting rod 312 is slidably connected to the right side of the hollow rod 216. The limiting rod 312 extends into the corresponding limiting hole 311. The plurality of limiting holes 311 are arranged in a linear array. Component 32 includes a connecting plate 321 fixedly connected to the right side of the limiting hole 311. A spring 322 is sleeved on the outer wall of the limiting rod 312. The right side of the spring 322 is fixedly connected to the connecting plate 321, and the left side of the spring 322 is fixedly connected to the hollow rod 216. The initial state of the spring 322 is the stretched state. By setting the adjustment part 3, it can flexibly adapt to non-woven fabrics of different thicknesses, expand the applicable range of the equipment, and at the same time keep the needle roller and the perforated roller at the best meshing gap, reducing needle wear and non-woven fabric processing damage.

[0027] It should be noted that the control of the drive unit on the rotating shaft 221, the motor 224 and the motor 226 in this application can all be achieved by using the program set in the control panel and inputting relevant parameters as needed for automated control. This control method can be achieved using existing technologies, such as PLC.

[0028] A specific application of this embodiment is as follows: In use, first adjust the height of the needle roller 222 according to the different thicknesses of the nonwoven fabric to better match the perforated roller 212. During adjustment, pull the connecting plate 321 to the right. The limiting rod 312 will also slide to the right. When the connecting plate 321 moves, the spring 322 will be stretched to a certain extent. As the limiting rod 312 slides out of the limiting hole 311, pull the fixing rod 217. After adjusting to the appropriate position, release the connecting plate 321. The limiting rod 312 will then be pulled back into the corresponding limiting hole 311 by the spring 322, thus achieving the adjustment effect. First, install the roll of nonwoven fabric on the unwinding roller 112, then pass the end of the nonwoven fabric through the traction roller 113. The nonwoven fabric is fed through the front conveyor roller 214 and then through the perforated roller 212, and then around the rear conveyor roller 214, thus achieving traction of the nonwoven fabric. Then, the rotating shaft 221, motor 224 and motor 226 are started. At this time, the rotation of the rotating shaft 211 will drive the perforated roller 212 to rotate, the rotating shaft 213 will drive the conveyor roller 214, and the rotating shaft 221 will drive the needle roller 222. When the perforated roller 212 rotates, the needle roller 222 will cooperate with the rotation of the perforated roller 212 to ensure that the piercing needle on the needle roller 222 can be inserted into the hole on the perforated roller 212. When the needle on the needle roller 222 pierces the hole on the perforated roller 212, it will pierce the nonwoven fabric at the same time. At this time, the nonwoven fabric can be pierced from small to large, thus achieving the piercing effect.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A punching device for nonwoven fabric processing, comprising two fixed plates (111) and a take-off roller (112) disposed between the two fixed plates (111), wherein the inner walls of the two fixed plates (111) are provided with traction rollers (113), characterized in that, Also includes: A perforated part (2) is provided on a fixed plate (111); Adjustment part (3), said adjustment part (3) is mounted on the perforated part (2); The perforated portion (2) includes a rotating assembly (21), which is mounted on a fixed plate (111); and A drive assembly (22) is mounted on a fixed plate (111); The rotating assembly (21) includes a rotating shaft (211) rotatably connected between two fixed plates (111). The left side of the rotating shaft (211) passes through the fixed plate (111) located on the left side. A perforated roller (212) is fixedly connected to the outer wall of the rotating shaft (211). Auxiliary parts are provided on the two fixed plates (111). A fixing ring (215) is fixedly connected to the side of the two fixed plates (111) that are close to each other. A plurality of hollow rods (216) are fixedly connected to the outer walls of the two fixing rings (215). A fixing rod (217) is provided on the inner wall of the plurality of hollow rods (216). Each fixed ring (215) is provided with four hollow rods (216) arranged in a circular array.

2. The punching device for nonwoven fabric processing according to claim 1, characterized in that, The adjusting part (3) includes a limiting component (31), which is disposed on the rotating component (21); and A reset assembly (32) is mounted on a rotating assembly (21); The limiting component (31) and the reset component (32) are located only on the rotating component (21) on the right side.

3. The punching device for nonwoven fabric processing according to claim 2, characterized in that, The drive assembly (22) includes a plurality of rotating shafts (221) rotatably connected to a plurality of fixed rods (217), and needle rollers (222) are fixedly connected to the outer walls of the plurality of rotating shafts (221). The plurality of needle rollers (222) are adapted to the perforated rollers (212). A drive component is provided on the fixed plate (111) on the left side. Among them, the two corresponding fixed rods (217) are rotatably connected by a rotating shaft three (221). Several rotating shaft three (221) are independently driven to adapt to the rotation of the perforated roller (212). The needles on each needle roller (222) are of different sizes and are distributed from small to large.

4. The punching device for nonwoven fabric processing according to claim 3, characterized in that, The limiting component (31) includes a plurality of limiting holes (311) opened on the fixed rod (217), and a limiting rod (312) is slidably connected to the right side of the hollow rod (216), and the limiting rod (312) extends into the corresponding limiting hole (311). Among them, several limiting holes (311) are arranged in a linear array.

5. A punching device for nonwoven fabric processing according to claim 4, characterized in that, The reset assembly (32) includes a connecting plate (321) fixedly connected to the right side of the limiting hole (311), and a spring (322) is sleeved on the outer wall of the limiting rod (312). The right side of the spring (322) is fixedly connected to the connecting plate (321), and the left side of the spring (322) is fixedly connected to the hollow rod (216). The initial state of the spring (322) is that it is stretched.

6. The punching device for nonwoven fabric processing according to claim 5, characterized in that, The auxiliary component includes a second rotating shaft (213) rotatably connected between two fixed plates (111). The left side of each of the two second rotating shafts (213) passes through the fixed plate (111) located on the left side. A conveying roller (214) is fixedly connected to the outer wall of each of the two second rotating shafts (213). The two rotating shafts (213) and the two conveying rollers (214) are arranged in a mirror image.

7. A punching device for nonwoven fabric processing according to claim 6, characterized in that, The driving component includes a motor bracket (223) fixedly connected to the left fixed plate (111), a motor (224) fixedly connected to the inner wall of the motor bracket (223), the output shaft of the motor (224) fixedly connected to the rotating shaft (211) via a coupling, a motor bracket (225) fixedly connected to the left side of the left fixed plate (111), a motor bracket (226) fixedly connected to the inner wall of the motor bracket (225), and the output shaft of the motor (226) fixedly connected to the rotating shaft (213) via a coupling. All motors are fixedly connected to the fixed plate (111) on the left side via motor brackets.

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