KR20240054776A - The manufacetured non-woven fabric panel through needle punching and the manufacturing method thereof - Google Patents

Abstract

The present invention relates to a non-woven fabric panel manufactured through needle punching and a method for manufacturing the same. More specifically, the web supplied through a carding machine is circulated and laminated several times with a needle punching machine to form a non-woven fabric, and the formed non-woven fabric is cut to a certain length. It relates to a non-woven panel manufactured through needle punching that can be cut and used as building interior material or insulation material, and a method of manufacturing the same,
(a) A web forming step of opening single fibers to form and supply a sheet-shaped web; (b) a non-woven panel manufacturing step in which the supplied web is sequentially circulated and stacked to form a non-woven fabric through needle punching and cut to a certain length to produce a non-woven panel; and (c) unloading the supplied non-woven panel by cutting it to a predetermined length.

Description

Non-woven panel manufactured through needle punching and its manufacturing method {THE MANUFACETURED NON-WOVEN FABRIC PANEL THROUGH NEEDLE PUNCHING AND THE MANUFACTURING METHOD THEREOF}

The present invention relates to a non-woven fabric panel manufactured through needle punching and a method for manufacturing the same. More specifically, the web supplied through a carding machine is circulated and laminated several times with a needle punching machine to form a non-woven fabric, and the formed non-woven fabric is cut to a certain length. It relates to a non-woven panel manufactured through needle punching that can be cut and used as building interior material or insulation material, and a method of manufacturing the same.

Non-woven fabric is a textile product made by entangling various fibers according to their mutual characteristics to form a sheet-shaped web and combining them through mechanical and physical methods without going through processes such as twisting, weaving, or knitting. There are a variety of raw materials to choose from. It has high productivity, and unique functions can be added by applying post-processing technology, so it has a variety of uses and can increase added value. It is widely used for clothing, medical, civil engineering, and industrial purposes, and is diversifying the manufacturing process. It is being released in a variety of products through improved functionality.

The general production process for non-woven fabrics is to form a web, laminate and combine the formed web, and process the combined web according to the purpose to form a sheet through a three-step process. In addition, depending on the web formation method, it can be divided into wet method and dry method, and depending on the difference in web joining method, it can be divided into needle punching method, thermal bonding method, melt blow method, spunlace method, and stitch bond method.

Nonwoven fabrics have very different properties depending on the type of raw materials used, the web creation method and bonding method, and the type of adhesive. Accordingly, it is difficult to simply explain the properties and characteristics of nonwoven fabrics, but representative properties include filtration, heat retention, moldability, water absorption, insulation, and discharge properties.

Looking specifically at the method of manufacturing non-woven fabric, short fibers are opened, stored in a reserve tank, and then supplied to a card machine. At this time, the card machine opens the supplied short fibers and arranges them in a certain direction to form a thin sheet-like web. make it

The web made in the card machine is transported by a transfer means, the web is laminated by a lamination means, and the laminated web is needle-punched to produce a nonwoven fabric, or the web laminated by a lamination means is cooled after a molding process of preheating and fusion. Manufactures non-woven fabrics.

Registered Patent Publication No. 10-1519466 (registered on May 6, 2015) Public Patent Publication No. 10-2016-0125756 (published on November 1, 2016) Registered Patent Publication No. 10-1954178 (registered on February 26, 2019) Registered Patent Publication No. 10-19357438 (registered on December 28, 2018)

The present invention relates to a non-woven panel manufactured through needle punching, which is capable of manufacturing a non-woven panel formed by stacking a plurality of non-woven fabrics by punching a web using needle punching and allowing the provided web to circulate while being laminated, and its production. The purpose is to provide a method.

In order to achieve the above object, the present invention includes: (a) a web forming step of opening single fibers to form and supply a sheet-shaped web; (b) a non-woven panel manufacturing step in which the supplied web is sequentially circulated and stacked to form a non-woven fabric through needle punching and cut to a certain length to produce a non-woven panel; and (c) unloading the supplied non-woven panel by cutting it to a predetermined length.

In the present invention, step (b) includes (b-1) a web connecting step of connecting the front and rear ends of the web so that the initially supplied web can be circulated; (b-2) a non-woven fabric forming step of forming a non-woven fabric by laminating and circulating a new web to the nth degree on the web where the front and rear ends are connected and needle-punching the web; (b-3) a density measurement and confirmation step of measuring the load and thickness of the formed nonwoven fabric, measuring the density of the nonwoven fabric, and checking whether the measured density value falls within a certain range; and (b-4) a non-woven panel forming step of cutting the non-woven fabric to a certain length to form a non-woven fabric panel when the density value of the non-woven fabric is confirmed to be within a certain range.

In the present invention, the web connecting step (b-1) consists of attaching an adhesive tape to the connection portion where the front and rear ends of the web are engaged, and the adhesive tape includes a target sensor capable of detecting the connection portion. It is characterized in that the sensor target is formed so that

In the present invention, step (b-2) is characterized by consisting of a first needle punching step of first needle punching the laminated web, and a second needle punching step of second needle punching the first needle punched web. do.

In the present invention, step (b-4) includes sensing the position of the sensor target, measuring a certain moving distance of the nonwoven fabric from the position of the sensor target, and cutting the nonwoven fabric according to the measured constant distance. It is characterized by consisting of steps.

In addition, the present invention provides a nonwoven panel manufactured by the method of any one of claims 1 to 5 to achieve the above object.

The non-woven panel according to the present invention is a non-woven panel manufactured by sequentially stacking webs and joining them by needle punching, and has the advantage of enabling mass production of non-woven panels of a certain size.

In addition, the non-woven panel according to the present invention has the advantage of being easy to use for industrial and architectural purposes because it can measure data such as density and weight of the laminated non-woven fabric and produce only non-woven fabric with a certain range of density and weight.

In addition, the non-woven panel according to the present invention has the advantage of reducing manufacturing costs because the non-woven panel can be mass-produced.

1 is a flow chart of a method for manufacturing a nonwoven panel according to the present invention.
Figure 2 is a flowchart of the non-woven panel manufacturing steps in the non-woven panel manufacturing method of Figure 1.
Figure 3 is a schematic diagram of the overall process of the nonwoven panel manufacturing system according to the present invention.
Figure 4 is a side view showing the adhesive tape and sensor target connecting the front and rear ends of the web of the non-woven panel manufacturing system according to the present invention.
Figure 5 is a side view of the driving roller of the nonwoven panel manufacturing system according to the present invention.
Figure 6 is a side view of the cut portion of the nonwoven panel manufacturing system according to the present invention.
Figure 7 is a side view showing the operation of the cutting unit, driving roller, and panel carrying unit of the non-woven panel manufacturing system according to the present invention.
Figure 8 is a side view showing the change in thickness of the web according to the nonwoven panel manufacturing system according to the present invention.
Figure 9 is a side view showing a non-woven panel manufactured by lamination of a non-woven panel manufacturing system according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, this is intended to provide a detailed description so that a person skilled in the art can easily carry out the invention, and this does not mean that the technical idea and scope of the present invention are limited.

1 is a flowchart of a method for manufacturing a nonwoven panel through needle punching according to the present invention. As shown in the figure, the non-woven panel manufacturing method includes (a) a web forming step (S1) in which single fibers are opened to form a sheet-shaped web and supplied, (b) the supplied web is sequentially circulated and A non-woven panel manufacturing step (S2) in which non-woven fabric is formed through needle punching while being laminated and cut to a certain length to produce a non-woven panel, and (c) a step (S3) of exporting the non-woven panel cut to a certain length and supplied. It comes true. Below, each of the above steps will be described in detail.

First, the web forming step (S1) is a step in which single fibers are opened to form a sheet-shaped web and supplied. As shown in Figure 3, when the short fibers 2 are supplied to the carding machine 10, they are opened in the carding machine 10 to form a sheet-shaped web. The web 2' is supplied from the carding machine 10 to the nonwoven fabric forming unit 20.

Next, the non-woven panel manufacturing step (S2) is a step in which the supplied web 2' is sequentially circulated and stacked, formed into a non-woven fabric through needle punching, and cut to a certain length to manufacture a non-woven panel. In general, the nonwoven panel manufacturing step (S2) includes a web connecting step (S21) in which the front and rear ends of the web (2') are connected to each other so that the initially supplied web (2') can be circulated, and the front and rear ends are connected. A non-woven fabric forming step (S22) of forming a non-woven fabric by needle-punching while laminating and circulating a new web (2') on the web (2') to the nth degree, and measuring the load and thickness of the formed non-woven fabric (2") to determine the size of the non-woven fabric. A density measurement and confirmation step (S23) in which the density is measured and the measured density value is confirmed to be within a certain range, and if the density value of the nonwoven fabric (2") is confirmed to be within a certain range, the nonwoven fabric (2") is It consists of a non-woven panel forming step (S24) of cutting to a certain length to form a non-woven panel (3).

First, it goes through a web connection step (S21) in which the front and rear ends of the web (2') are connected to each other so that the initially supplied web (2') can be circulated. As shown in FIG. 3, the front and rear ends of the web 2' are connected so that it can rotate circularly along the roller unit 27. The configuration of the connecting device 21 for connecting the front end and the rear end is shown in Figures 3 and 4. As shown in the drawing, the connecting portion 21 is provided by an adhesive device 211 and a bonding device 211 for attaching the front and rear ends of the web 2' to each other and is attached to the web 2'. An adhesive tape 212 that attaches the front and rear ends of (2') to each other, a sensor target 213 formed on the adhesive tape 212 to enable detection by the sensor unit 25, and an adhesive device ( It consists of an adhesive plate 214 to facilitate the operation of 211). The front and rear ends of the initially supplied web (2') are connected at the connection portion (21). Even if the second or more laminated web 2' is not connected by the connecting portion 22, it forms one body with other nonwoven fabrics by needle punching, so there is no need to connect the front and rear ends. Specifically, the front and rear ends of the web 2' initially supplied from the carding machine 10 are connected to each other, and accordingly, the web 2' with the front and rear ends connected can be circulated through the roller unit 27. The connecting portion 21 compresses the adhesive tape 212 supplied from the adhesive device 211 so that it is adhered to the front and rear ends of the web 2'. Accordingly, the adhesive tape 212 connects the front and rear ends of the web 2' and can be continuously circulated through the roller unit 27.

Next, a non-woven fabric forming step (S22) is performed in which a non-woven fabric (2") is formed by laminating and circulating a new web (2') to the nth degree on the web (2') where the front and rear ends are connected and needle-punching the non-woven fabric (2"). Non-woven fabric forming part In (20), the web 2', where the front and rear ends are connected, is rotated by the roller unit 27 and forms a non-woven fabric 2" by needle punching by the needle punching unit 23. The nonwoven fabric 2" is formed by lamination, circulation, and needle punching while the new web 2' is supplied to the nth order until it has the desired density and thickness. As shown in FIG. 3, the needle punching unit 23 It consists of a first needle punching machine (22a) and a second needle punching machine (22b). Therefore, it goes through a first needle punching step in which the web (2') supplied by the first needle punching machine (22a) is first needle punched. , the web 2', which was first needle-punched by the second needle punching machine 22b, is needle-punched secondarily while passing through the first needle punching machine 22a and the second needle punching machine 22b. 2') is formed of a non-woven fabric (2"), and the thickness of the non-woven fabric (2") formed by compression according to punching becomes thinner, and the webs 2', which are stacked up and down by needle punching, are entangled with each other. In addition to the load, it is formed into a thinner non-woven fabric (2") by compression with a needle punching machine. As shown in FIG. 8, the short fibers 2 are formed into a web 2' while passing through the carding machine 10, and are formed into a non-woven fabric 2" through needle punching. The n-th supplied web ( 2') is formed into a non-woven fabric through needle punching. The thickness range of the non-woven fabric 2" is determined in advance, and the thickness t can be formed within a predetermined range.

Next, the density of the nonwoven fabric (2") is measured by measuring the load of the formed nonwoven fabric (2"), and a density measurement and confirmation step (S23) is performed to check whether the measured density value falls within a certain range. The load of the non-woven fabric (2") is carried out in the load measuring unit 24. As shown in FIG. 3, the load measuring unit 24 is formed to have a certain area so as to support the non-woven fabric (2") of a certain area. It consists of a plate 241 and a load sensor 242 mounted on the plate 241 to measure the load of the nonwoven fabric of a certain area. A load measuring unit 24 is provided to check whether the nonwoven fabric 2" being laminated has the desired density and thickness. In the load measuring unit 24, the plate 241 is formed larger than the load sensor 242 to support the non-woven fabric (2") of a certain area, and the non-woven fabric (2") of a certain area located on the upper part of the load sensor 242 Only the load due to ") is allowed to act. The load sensor 242 measures the load value along with the thickness and transmits signals of the measured thickness and load value to the controller 40. The controller 40, which receives the signal of the load value, calculates the density and checks whether the calculated density falls within a specified range. If the load of the non-woven fabric (2") has a density value within a certain range, the next step proceeds. The density range of the non-woven fabric (2") can be set to 800 ~ 1200 kg/m ³ .

Next, if the density value of the non-woven fabric (2") is confirmed to be within a certain range, a non-woven panel forming step (S24) is performed in which the non-woven fabric (2") is cut to a certain length to form the non-woven panel (3). Since the non-woven fabric (2") was confirmed to have a density value in a predetermined range, it is cut to a certain length to form the non-woven panel (3). The non-woven fabric (2") is cut at the cutting section (26). The step of cutting the non-woven fabric (2") to form the non-woven panel (3) includes the step of sensing the position of the sensor target 213 by the distance measuring sensor 25a, and the step of sensing the position of the sensor target 213 by the distance measuring sensor 25a. First, the sensor target 213 is detected by the distance measuring sensor 25a, including measuring a certain moving distance of the non-woven fabric 2" and cutting the non-woven fabric 2" according to the measured distance. When this happens, the sensor 25a transmits the detected signal to the controller 40, and the controller 40, which has received the signal from the sensor target 213, transmits a distance measurement control signal to the distance measurement sensor 25a. Accordingly, the distance measuring sensor 25a measures the distance of the nonwoven fabric 2" being moved. The measured distance value is transmitted back to the controller 40, and the controller 40 compares it with the predetermined length and, if it matches, transmits a cutting control signal to the cutting unit 26. Accordingly, the cutting section 26 cuts the nonwoven fabric 2" to a certain length and forms the nonwoven fabric panel 3.

Figure 3 is an overall configuration diagram of the non-woven panel manufacturing system 1 for manufacturing non-woven panels through needle punching according to the present invention. As shown in the figure, the non-woven panel manufacturing system 1 includes a carding machine 10 that receives single fibers 2 and forms a sheet-shaped web 2', and a carding machine 10 sequentially. A non-woven fabric forming part 20 in which a non-woven fabric 2 "is formed through needle punching while the supplied and laminated web 2' is circulated, and a non-woven fabric panel 3 that is cut to a certain length and supplied from the non-woven fabric forming part 20. ) is composed of a panel unloading unit 30 for unloading, a carding machine 10, a nonwoven fabric forming unit 20, and a controller 40 for controlling the operation of the panel unloading unit 30.

The carding machine 10 receives single fibers 2, opens them, and arranges them in a certain direction to form a thin sheet-shaped web. The web 2' made in the carding machine 10 is supplied to the nonwoven fabric forming unit 20. The carding machine 10 receives a signal from the controller 40 and supplies the web 2' intermittently so that the web 2' can be laminated on a non-woven fabric, etc.

As shown in FIG. 3, the nonwoven fabric forming unit 20 connects the front and rear ends of the web 2' to each other so that the web 2' of a certain length sequentially supplied from the carding machine 10 can be circulated. A connecting portion 21, a first needle punching machine 22a that primarily needle-punches the circulated web 2', and a second needle punching machine 22a that is spaced a certain distance apart from the first needle punching machine 22a to needle-punch the web 2' in a secondary manner. A needle punching unit 23 consisting of a second needle punching machine 22b for needle punching to form the nonwoven fabric 2", a load measuring unit 24 measuring the load of a certain area of the circulated nonwoven fabric 2", and , when the load of the non-woven fabric (2") is within a certain range, a cutting part (26) for cutting the non-woven fabric (2") to a certain length, and a non-woven fabric (2") and a web (2') laminated on the non-woven fabric (2"). ), and when the non-woven fabric (2") is completed, the position of the non-woven fabric can be measured and cut to form a non-woven panel (3) of a certain length. A sensor unit consisting of a distance measurement sensor (25a) that measures the moving distance of the nonwoven fabric (2") and a target sensor (25b) that senses the target (213) and the target (213) whose front and rear ends are connected. It consists of (25).

Figure 4 shows the connection portion 21. As described above, the connecting portion 21 is provided by an adhesive device 211 and a bonding device 211 for attaching the front and rear ends of the web 2' to each other and is attached to the web 2'. An adhesive tape 212 that is attached to attach the front and rear ends of the web 2' to each other, and a sensor target 213 formed on the adhesive tape 212 to enable detection by the sensor unit 25, It consists of an adhesive plate 214 to facilitate the operation of the adhesive device 211.

Figure 5 shows the driving roller 271 of the roller unit 27. The driving roller 271 consists of a moving roller 271a that has its own rotational driving force and can be driven up and down or left and right, and a fixed roller 271b that has only its own rotational driving force. The moving roller 271a can move up and down or left and right because it needs to be adjusted depending on the thickness of the nonwoven fabric 2" that rotates circularly.

Figure 6 shows the cut portion 26. The cutting unit 26 includes a cutter 261, a vertical driving device 262 for vertically driving the cutter 261, and a cutter 261 so that the nonwoven fabric 2" can be cut by the cutter 261. The nonwoven fabric 2", which engages the cutter 261 at the bottom, is formed by needle punching the web 2' supplied through the carding machine 10, and is circulated. Through lamination of "), it is finally formed into a nonwoven fabric (2") with the desired density and thickness. The nonwoven fabric (2") with the desired density and thickness is cut to a certain length by the cutting unit (26).

Figure 7 shows that the non-woven panel 3 cut through the cutting unit 26 is transferred to the panel carrying unit 30. According to the control signal from the controller 40 that received the signal from the distance measuring sensor 25a, the cutting unit 26 cuts the nonwoven fabric 2" to a certain length to form the nonwoven panel 3. The nonwoven fabric 2" is cut. When the non-woven panel 3 is formed, the non-woven panel 3 moves straight by the moving roller 271a and the fixed roller 271b of the driving roller 271, and accordingly, the non-woven panel 3 moves through the panel carrying unit. It is transferred to (30). The panel delivery unit 30 consists of a conveyor belt 31 and a belt drive roller 32. FIG. 9 shows the nonwoven panel 3 finally manufactured through the panel delivery unit 30. Non-woven panels (3) of a certain length with a certain range of density and load can be used as building materials, etc.

Although the embodiments have been described above as examples, it is obvious to those skilled in the art that the present invention can be embodied in various other forms without departing from the spirit and scope thereof. Accordingly, the above-described embodiments should be considered illustrative rather than restrictive, and the appended claims and all implementations within the scope of equivalents thereof will be included within the scope of the present invention.

1: Non-woven panel manufacturing system
2: single fiber 2': web
2": Non-woven 3: Non-woven panel
10: Carding machine
20: Nonwoven fabric forming part 21: First needle punching part
22: Connection part 23: Second needle punching part
24: load measurement unit 25: sensor unit
26: cutting part 27: roller part
30: Panel carrying unit 31: Conveyor belt
32: driving roller
40: controller

Claims (6)

(a) A web forming step of opening single fibers to form a sheet-shaped web and supplying it;
(b) a non-woven panel manufacturing step in which the supplied web is sequentially circulated and stacked to form a non-woven fabric through needle punching and cut to a certain length to produce a non-woven panel; and
(c) carrying out the non-woven panel supplied after being cut to a certain length;
A method of manufacturing a non-woven panel through needle punching, characterized in that it consists of.
According to paragraph 1,
In step (b),
(b-1) a web connecting step of connecting the front and rear ends of the web so that the initially supplied web can be circulated;
(b-2) a non-woven fabric forming step of forming a non-woven fabric by laminating and circulating a new web to the nth degree on the web where the front and rear ends are connected and needle-punching the web;
(b-3) a density measurement and confirmation step of measuring the load and thickness of the formed nonwoven fabric, measuring the density of the nonwoven fabric, and checking whether the measured density value falls within a certain range; and
(b-4) a non-woven panel forming step of forming a non-woven panel by cutting the non-woven fabric to a certain length when it is confirmed that the density value of the non-woven fabric falls within a certain range;
A method of manufacturing a non-woven panel through needle punching, characterized in that it consists of.
According to paragraph 2,
The web connection step of (b-1) above is,
It consists of attaching adhesive tape to the connection portion where the front and rear ends of the web meet,
A method of manufacturing a non-woven panel through needle punching, characterized in that a sensor target is formed on the adhesive tape so that the target sensor can detect the connection portion.
According to paragraph 3,
In step (b-2),
A method of manufacturing a non-woven panel through needle punching, comprising a first needle punching step of first needle punching the laminated web, and a second needle punching step of second needle punching the first needle punched web.
According to paragraph 4,
In step (b-4),
Needle punching comprising the steps of sensing the position of the sensor target, measuring a certain moving distance of the nonwoven fabric from the position of the sensor target, and cutting the nonwoven fabric according to the measured constant distance. Nonwoven panel manufacturing method through.
A nonwoven panel manufactured by the method of any one of claims 1 to 5.

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