Four-layer non-woven fabric production equipment line

The four-layer nonwoven fabric production line, which integrates melt spraying, humidification, and drying devices, solves the problems of low production efficiency and unstable quality of traditional equipment lines, and achieves efficient production of high-quality multilayer nonwoven fabrics.

CN223951353UActive Publication Date: 2026-02-27GUANGDONG JIANGMEN DUOMEI NON-WOVEN CLOTH CO LTD
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Patent Information

Application Number
CN202520314890.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-02-27
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

Traditional nonwoven fabric production lines have low production efficiency and unstable product quality. In particular, when producing multi-layer nonwoven fabrics, it is difficult to control the adhesion, uniformity and surface humidity between the layers.

Method used

A four-layer nonwoven fabric production line was designed, including a frame, a melt spraying device, a humidification device, and a drying device. The melt spraying device has four sets of spray pipes for melt spraying. The conveyor belt inside the machine is used to carry the nonwoven fabric. The spray pipes precisely control the spraying volume and speed. The humidification device adjusts the humidity through humidification rollers. The drying device dries the nonwoven fabric quickly through heating elements and an airflow circulation system, ensuring the adhesion and humidity control of each layer of nonwoven fabric.

Benefits of technology

It improves the production efficiency of four-layer nonwoven fabric, ensures the physical properties and surface quality of the finished product, reduces production costs, and facilitates maintenance and management.

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Abstract

The utility model discloses a four-layer non-woven fabric production equipment line which comprises a rack, a spraying and melting device, a humidifying device and a drying device, the spraying and melting device is connected to the rack, the spraying and melting device comprises a machine box and at least four sets of spraying pipes connected to the interior of the machine box, the spraying pipes are sequentially arranged from front to back, and the humidifying device is connected to the interior of the machine box. A conveying belt is arranged in the machine box, and the conveying belt is located below the injection pipe and penetrates through the machine box. The humidifying device is connected with the machine frame and located at the rear end of the spraying and melting device, the humidifying device comprises a humidifying roller, and the humidifying roller is located at the discharging end of the conveying belt and used for humidifying the non-woven fabric obtained after spraying and melting. The drying device is connected with the rack and located at the rear end of the humidifying device, the drying device is provided with a feeding port and a discharging port which are used for feeding in and discharging out of the non-woven fabric, and the drying device is used for drying the non-woven fabric.
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Description

TECHNICAL FIELD

[0001] The utility model relates to non - woven fabric manufacturing technical field, especially in four layer non - woven fabric production equipment line. BACKGROUND

[0002] Non - woven fabric as a kind of non - woven fabric, because its manufacturing process is simple, cost is low, and is widely used and is popular. In medical, health, packaging, agriculture and other fields have an indispensable position. Traditional non - woven fabric production equipment line often has the problems, such as low production efficiency, unstable product quality, especially in the production of multilayer non - woven fabric, the adhesion between layers, uniformity and surface humidity control become technical difficulties. Therefore, it is of great significance to develop a kind of equipment line capable of efficiently and stably producing four layer non - woven fabric. UTILITY MODEL CONTENTS

[0003] The utility model aims at at least one of the technical problems existing in the prior art. Therefore, the utility model provides a four layer non - woven fabric production equipment line, which can effectively improve production efficiency and ensure the quality of four layer non - woven fabric products.

[0004] According to the four layer non - woven fabric production equipment line of the first aspect embodiment of the utility model, the spraying and melting device is connected to the rack, the spraying and melting device includes a machine box and a spraying pipe connected to the inside of the machine box, at least 4 groups are sequentially arranged along the front and back order, the inside of the machine box is provided with a conveying belt, the conveying belt is below the spraying pipe and penetrates the machine box. The humidifying device is connected to the rack and located at the rear end of the spraying and melting device, the humidifying device includes a humidifying roller, the humidifying roller is located at the discharging end of the conveying belt, for humidifying non - woven fabric after spraying and melting. The drying device is connected to the rack and located at the rear end of the humidifying device, the drying device is provided with feeding port and discharging port for non - woven fabric to enter and send out, and the drying device is used for drying non - woven fabric.

[0005] The four-layer non-woven fabric production equipment line has at least the following beneficial effects: the rack is a supporting structure of the entire equipment line, ensuring stable installation and operation of each component; the spray melting device is connected to the rack and is a core component for producing four-layer non-woven fabric; the spray melting device comprises a machine box and a spray pipe connected to the inside of the machine box; the spray pipe is sequentially provided with at least four groups in front-to-back order, and each group of spray pipes is responsible for the melting spraying of one layer of non-woven fabric; through accurate control of the spraying amount and speed of each group of spray pipes, simultaneous formation and preliminary bonding of four-layer non-woven fabric can be realized; a conveying belt is arranged in the machine box, the conveying belt is located below the spray pipe and penetrates through the machine box, and is used for carrying and continuously conveying the non-woven fabric being formed; the humidifying device is connected to the rack and located at the rear end of the spray melting device; the humidifying device comprises a humidifying roller; when the non-woven fabric after spraying passes through the humidifying roller, the wet medium on the roller is uniformly applied to the surface of the non-woven fabric, so that the humidity of the non-woven fabric is adjusted and the adhesion between fibers is enhanced; the drying device is connected to the rack and located at the rear end of the humidifying device; the drying device is provided with an inlet and an outlet for the non-woven fabric to enter and exit, is internally provided with a heating element and an air flow circulation system, and is used for rapidly drying the humidified non-woven fabric, preventing subsequent processing difficulty and product quality decline caused by excessive humidification; through the integrated spray melting device, simultaneous production of four-layer non-woven fabric is realized, and production efficiency is significantly improved; through cooperation of the humidifying device and the drying device, the humidity of the non-woven fabric is accurately controlled, and the physical properties and surface quality of the finished product are ensured; each component is reasonably designed, the layout is compact, and maintenance and management are facilitated, thereby reducing production cost.

[0006] According to some embodiments of the present application, the spray port of the third spray pipe is M-shaped.

[0007] According to some embodiments of the present application, the humidifying device further comprises a mounting bracket and a first drive, the humidifying roller is rotationally connected to the mounting bracket, one end of the humidifying roller is connected to the output end of the first drive, the first drive drives the rotation of the humidifying roller, the inside of the humidifying roller is provided with a liquid storage cavity, and the circumferential outer wall of the humidifying roller is provided with a liquid outlet, the liquid outlet is in communication with the liquid storage cavity.

[0008] According to some embodiments of the present application, the humidifying roller is further provided with a liquid supply mechanism, the liquid supply mechanism is located outside the humidifying roller, the liquid supply mechanism is connected to the liquid storage cavity, and the liquid supply mechanism provides liquid for the liquid storage cavity to provide humidification for the non-woven fabric.

[0009] According to some embodiments of the present application, the humidifying roller and the first drive are both provided with two, and the non-woven fabric can pass between the two humidifying rollers.

[0010] According to some embodiments of the utility model, the circumferential outer wall of humidifying roller is covered with cotton layer, the cotton layer can absorb liquid for humidifying, the outer wall of humidifying roller is provided with first adhesive part, the cotton layer is provided with second adhesive part, the humidifying roller and the cotton layer are connected through cooperation of first adhesive part and second adhesive part to realize detachable connection.

[0011] According to some embodiments of the utility model, the inside of humidifying roller is provided with heating sheet, the inside of humidifying roller is provided with installation cavity, and heating sheet is fixed on the inner wall of installation cavity.

[0012] According to some embodiments of the utility model, the drying device includes box and first heating mechanism, first heating mechanism is arranged in the box, first heating mechanism is composed of first guide roller and heating net, heating net is connected with external power supply, at least two first guide rollers are arranged along longitudinal direction, the first guide rollers that are overlapped in longitudinal direction are a group, and multiple groups of first guide rollers are arranged along the direction from feed inlet to discharge outlet, and heating net is arranged between each group of first guide rollers.

[0013] According to some embodiments of the utility model, the first guide roller is hollow inside and is provided with heating part, the heating part is connected with external power supply, the first guide roller is provided with air hole, and the air hole is communicated with the inner cavity of first guide roller.

[0014] According to some embodiments of the utility model, the top and bottom of box are respectively provided with air inlet and air outlet, and air inlet and air outlet are diagonally arranged.

[0015] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further explained below in combination with drawings and embodiments, wherein:

[0017] Figure 1 It is the schematic diagram of four layer nonwoven fabric production equipment line of the utility model embodiment;

[0018] Figure 2 It is the schematic diagram of first guide roller of four layer nonwoven fabric production equipment line of the utility model embodiment.

[0019] Reference signs: rack 1000, spraying device 100, cabinet 110, spraying pipe 120, conveying belt 130, humidifying device 200, mounting bracket 210, humidifying roller 220, liquid storage cavity 221, liquid outlet 222, first adhesive 223, mounting cavity 224, cotton layer 225, second adhesive 226, heating sheet 227, drying device 300, box body 310, feeding port 311, discharging port 312, air inlet 313, air outlet 314, first guide roller 320, heating piece 321, air hole 322, heating net 330, non-woven fabric 400. DETAILED DESCRIPTION

[0020] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0021] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0022] In the description of the present application, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0023] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing, connecting should be understood broadly, and the skilled in the art can determine the specific meaning of the above words in the utility model according to the specific content of technical scheme.In the description of the utility model, the description of reference terms '' an embodiment '', '' some embodiments '', '' illustrative embodiment '', '' example '', '' specific example '' or '' some examples '' means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model.In the description of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.In the description of the present application, the description of reference terms '' an embodiment '', '' some embodiments '', '' illustrative embodiment '', '' example '', '' specific example '' or '' some examples '' means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model.In the description of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0024] With reference to Figure 1 And Figure 2 The utility model provides a kind of four-layer nonwoven fabric production equipment line, including rack 1000, spray melting device 100, humidifying device 200 and drying device 300, spray melting device 100 is connected to rack 1000, spray melting device 100 includes cabinet 110 and the spray pipe 120 connected in the inside of cabinet 110, spray pipe 120 is sequentially provided with at least 4 groups along front-back order, the inside of cabinet 110 is provided with conveying belt 130, conveying belt 130 is below spray pipe 120 and penetrates cabinet 110.Humidifying device 200 connects rack 1000, and is located at the rear end of spray melting device 100, humidifying device 200 includes humidifying roller 220, humidifying roller 220 is located at the discharge end of conveying belt 130, for humidifying after spraying nonwoven fabric 400 Melting.Drying device 300 connects rack 1000, and is located at the rear end of humidifying device 200, drying device 300 is provided with the feeding port 311 and discharge port 312 for nonwoven fabric 400 to enter and send out, and drying device 300 is used to dry nonwoven fabric 400.

[0025] In specific embodiments, the rack 1000 serves as the support structure for the entire device line, ensuring stable installation and operation of each component. The spray melting device 100 is connected to the rack 1000 and is the core component for producing the four-layer non-woven fabric 400. The spray melting device 100 includes a machine case 110 and spray pipes 120 connected inside the machine case 110. The spray pipes 120 are arranged in at least four groups in sequence from front to back, with each group of spray pipes 120 responsible for the melting and spraying of one layer of non-woven fabric 400. By precisely controlling the spraying amount and speed of each group of spray pipes 120, the simultaneous formation and preliminary bonding of the four-layer non-woven fabric 400 can be achieved. Inside the machine case 110, a conveyor belt 130 is provided, which is located below the spray pipes 120 and runs through the machine case 110, used to carry and continuously transport the non-woven fabric 400 being formed. The humidifying device 200 is connected to the rack 1000 and located at the rear end of the spray melting device 100. The humidifying device 200 includes a humidifying roller 220, which is located at the discharge end of the conveyor belt 130, i.e., when the sprayed non-woven fabric 400 passes through the humidifying roller 220, the wet medium on the roller is uniformly applied to the surface of the non-woven fabric 400, to achieve the purpose of adjusting the humidity of the non-woven fabric 400 and enhancing the bonding force between fibers. The drying device 300 is connected to the rack 1000 and located at the rear end of the humidifying device 200. The drying device 300 is provided with an inlet 311 and an outlet 312 for the non-woven fabric 400 to enter and exit, and is equipped with heating elements and air circulation systems inside, used to quickly dry the humidified non-woven fabric 400, preventing subsequent processing difficulties and product quality decline caused by excessive humidification.

[0026] It can be understood that through the integrated spray melting device 100, the simultaneous production of four-layer non-woven fabric 400 is achieved, significantly improving production efficiency. The use of the humidifying device 200 and the drying device 300 precisely controls the humidity of the non-woven fabric 400, ensuring the physical properties and surface quality of the finished product. Each component is designed reasonably and laid out compactly, facilitating maintenance and management, and reducing production costs.

[0027] Referring to Figure 1 It should be noted that in some embodiments, in the design of the third spray pipe 120, the spray port is specially designed as an M shape, aiming to optimize the distribution of fiber spraying, so that the non-woven fabric 400 can obtain a more uniform and dense fiber structure during the formation process. The M-shaped spray port helps to form multiple spray points during spraying, thereby increasing the interlacing density of fibers and improving the strength and stability of the non-woven fabric 400. In addition, the M-shaped spray port can also reduce the waste of fibers to some extent, improving the utilization rate of materials. By using the third spray pipe 120 with an M-shaped spray port, the four-layer non-woven fabric production device line can produce non-woven fabric 400 products with higher strength and stability.

[0028] Specifically, in the humidifying device 200, the humidifying roller 220 is fixed by the mounting bracket 210 and rotates driven by the first drive. The humidifying roller 220 is internally provided with a liquid storage cavity 221, which is in communication with the outside through a liquid outlet 222, for uniformly applying the humidifying liquid to the surface of the non-woven fabric 400. In order to ensure the continuous supply of the humidifying liquid, the humidifying roller 220 is also equipped with a liquid supply mechanism connected with the liquid storage cavity 221, which is responsible for supplying the liquid for humidifying to the liquid storage cavity 221.

[0029] In order to improve the humidifying effect, the humidifying roller 220 is provided with two, and the non-woven fabric 400 passes between the two humidifying rollers 220 to realize double-sided humidifying. In addition, the circumferential outer wall of the humidifying roller 220 is covered with a cotton layer 225, which has good liquid absorption performance and can fully absorb the liquid for humidifying. In order to facilitate the replacement of the cotton layer 225, the outer wall of the humidifying roller 220 is provided with a first adhesive member 223, and the cotton layer 225 is provided with a second adhesive member 226 matched therewith, and the detachable connection of the cotton layer 225 and the humidifying roller 220 is realized through the matched connection of the adhesive members. In order to further improve the humidifying efficiency, the humidifying roller 220 is also internally provided with a heating sheet 227. The heating sheet 227 is installed on the inner wall of the mounting cavity 224 in the humidifying roller 220, which can improve the evaporation speed of the liquid by heating the humidifying liquid, thereby speeding up the humidifying process of the non-woven fabric 400.

[0030] It is easy to understand that the humidifying roller 220 is internally provided with a liquid storage cavity 221 for storing the liquid for humidifying. The circumferential outer wall is provided with a liquid outlet 222 in communication with the liquid storage cavity 221, and when the humidifying roller 220 rotates, the liquid is uniformly applied to the non-woven fabric 400 passing through the humidifying roller 220 through the liquid outlet 222. The humidifying device 200 of the present application has the advantages of simple structure, convenient operation, and can be widely applied to the non-woven fabric 400 production line to uniformly humidify the non-woven fabric 400, improve the humidifying effect and production efficiency, and provide strong support for the production of non-woven fabric 400. The four-layer non-woven fabric production equipment line can realize double-sided uniform humidifying of the non-woven fabric 400, and improve the fiber adhesion of the non-woven fabric 400. At the same time, the heating sheet 227 helps to improve the humidifying efficiency and shorten the production cycle. In addition, the detachable connection of the cotton layer 225 facilitates the maintenance and replacement of the humidifying roller 220, and reduces the production cost.

[0031] Referring to Figure 1 and Figure 2Further, the drying device 300 comprises a box body 310 and a first heating mechanism. The first heating mechanism is composed of a first guide roller 320 and a heating net 330. The heating net 330 is connected with an external power supply and is used to provide heat for drying the non-woven fabric 400. The first guide rollers 320 are arranged in a longitudinal direction and are spaced apart to form a plurality of groups of guide rollers. The heating net 330 is arranged between each group of guide rollers. This design ensures that the non-woven fabric 400 can be uniformly heated during the drying process, thereby improving the drying efficiency.

[0032] In order to improve the drying effect, the first guide roller 320 is internally provided with a hollow structure and is equipped with a heating element 321. The heating element 321 is connected with an external power supply and is used to heat the guide roller itself, thereby further improving the drying speed of the non-woven fabric 400. In addition, the guide roller is provided with a ventilation hole 322 which is in communication with the inner cavity of the guide roller, thereby facilitating the uniform distribution and discharge of heat.

[0033] In addition to the first heating mechanism, the top and bottom of the box body 310 are respectively provided with an air inlet 313 and an air outlet 314. The air inlet 313 and the air outlet 314 are diagonally arranged to form a convection circulation, thereby further improving the drying efficiency.

[0034] The above describes the embodiments of the present application in detail in combination with the drawings. However, the present application is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present application.

Claims

1. A four-layer nonwoven fabric production line, characterized in that, include: frame; A spraying device is connected to the frame. The spraying device includes a housing and spray pipes connected inside the housing. At least four sets of spray pipes are arranged in a front-to-back sequence. A conveyor belt is provided inside the housing. The conveyor belt is located below the spray pipes and passes through the housing. A humidifying device is connected to the frame and located at the rear end of the meltblown device. The humidifying device includes a humidifying roller located at the discharge end of the conveyor belt and is used to humidify the nonwoven fabric after meltblown fabric. A drying device is connected to the frame and located at the rear end of the humidifying device. The drying device is provided with an inlet and an outlet for the nonwoven fabric to enter and exit. The drying device is used to dry the nonwoven fabric.

2. The four-layer nonwoven fabric production line according to claim 1, characterized in that, The nozzle of the third jet pipe is M-shaped.

3. The four-layer nonwoven fabric production line according to claim 1, characterized in that, The humidification device further includes a mounting bracket and a first drive. The humidification roller is rotatably connected to the mounting bracket. The output end of the first drive is connected to one end of the humidification roller. The first drive drives the humidification roller to rotate. The humidification roller has a liquid storage chamber inside and a liquid outlet on its outer circumference. The liquid outlet communicates with the liquid storage chamber.

4. The four-layer nonwoven fabric production line according to claim 3, characterized in that, The humidifying roller is also provided with a liquid supply mechanism, which is located outside the humidifying roller and connected to the liquid storage chamber. The liquid supply mechanism provides the liquid storage chamber with liquid for humidifying the nonwoven fabric.

5. A four-layer nonwoven fabric production line according to claim 4, characterized in that, Both the humidifying roller and the first drive are provided in twos, and the nonwoven fabric can pass between the two humidifying rollers.

6. A four-layer nonwoven fabric production line according to claim 5, characterized in that, The outer circumferential wall of the humidifying roller is covered with a cotton layer, which can absorb the liquid for humidification. The outer wall of the humidifying roller is provided with a first adhesive component, and the cotton layer is provided with a second adhesive component. The humidifying roller and the cotton layer are detachably connected by the cooperation of the first adhesive component and the second adhesive component.

7. A four-layer nonwoven fabric production line according to claim 6, characterized in that, The humidifying roller has a heating element inside and a mounting cavity inside, with the heating element fixed to the inner wall of the mounting cavity.

8. A four-layer nonwoven fabric production line according to claim 1, characterized in that, The drying device includes a box and a first heating mechanism. The first heating mechanism is disposed in the box and consists of a first guide roller and a heating mesh. The heating mesh is connected to an external power source. At least two first guide rollers are spaced apart along the longitudinal direction. The first guide rollers whose projections overlap in the longitudinal direction form a group. Multiple groups of first guide rollers are spaced apart along the direction from the feed inlet to the discharge outlet. The heating mesh is disposed between each group of first guide rollers.

9. A four-layer nonwoven fabric production line according to claim 8, characterized in that, The first guide roller is hollow inside and is equipped with a heating element. The heating element is connected to an external power source. The first guide roller is provided with a vent hole, which communicates with the inner cavity of the first guide roller.

10. A four-layer nonwoven fabric production line according to claim 8, characterized in that, The top and bottom of the enclosure are respectively provided with an air inlet and an air outlet, which are arranged diagonally.