KR101150823B1 - Fabrication apparatus for non-woven fabrics - Google Patents

Abstract

The present invention relates to an apparatus for manufacturing a nonwoven fabric, and in particular, to provide a nonwoven fabric manufacturing apparatus capable of mixing evenly recycled and non-renewable materials, and minimizing a deviation between the longitudinal tensile strength and the widthwise tensile strength of the web. It is to.
To this end, in the present invention, an opening machine for unwinding the bundle of fiber yarns, a blending machine for mixing the fiber yarns supplied from the opening machine, and a carding machine for thinly spreading the fiber yarns supplied through the hopper ring in the blending machine to form a web; Forming machine for controlling the thickness and width of the web supplied through the carding machine, and needle punching machine for three-dimensional coupling of the arrangement of the web supplied through the forming machine, especially the blending machine is connected through the opening and the transfer pipe A blending tank for storing a certain amount of fiber yarn, the extension rod is installed in connection with the transfer pipe in the upper portion of the blending tank, the plurality of unit rods are folded or unfolded in the horizontal direction to fold the length adjustable, the outermost of the extension rod Folding means combined with the unit rod to provide a driving force for adjusting the length of the extension rod, and connected to the fiber yarn outlet end of the extension rod Non-woven fabric manufacturing apparatus comprising a discharge pipe for guiding and guiding the discharge of the fiber yarn in an angular direction oblique to the horizontal plane, and a rotating means for rotating the discharge pipe in a horizontal direction so that the fiber yarn discharged through the discharge pipe is scattered in all directions Is disclosed.

Description

Fabrication apparatus for non-woven fabrics

The present invention relates to an apparatus for manufacturing a nonwoven fabric, and more particularly, a nonwoven fabric capable of uniformly mixing and distributing a recycled raw material and a non-regenerated raw material and minimizing a deviation between the longitudinal tensile strength and the widthwise tensile strength of the web. It is about a manufacturing apparatus.

Generally, a nonwoven fabric is a felt or sheet formed by arranging and bonding fibers in parallel or in an opposite direction by chemical, physical, or heat treatment without undergoing a woven process such as spinning, weaving, and knitting. ) It is made in shape, and has excellent properties and characteristics such as filterability, heat retention, formability, flexibility, absorbency, insulation and dischargeability, so that it can be used for medical, clothing, industrial materials, civil construction, artificial leather, living materials, agriculture It is widely used in various industries such as automotive interior materials and high quality paper.

Such nonwoven fabrics are classified into spunbonds which are directly manufactured in dry, wet and melt spinning processes according to web formation conditions, and special needle fibers having a barb according to the web bonding method. Needle punching to entangle the webs mechanically to join the web, water zet to entangle the web by injecting high pressure water into the fiber, and to entangle or dissolve the fibers of low melting point by heat or pressure. Various manufacturing methods are known, such as physical bonding such as thermal bonding to bond and chemical bonding such as chemical bonding produced by depositing or spraying the adhesive.

In particular, the needle punching method uses a plurality of needles on the surface or the back side of the laminated fiber to punch repeatedly to move up and down to form a fiber layer having a constant thickness and density by intertwining the array of fibers in a three-dimensional random structure. As a manufacturing method, it has the longest history in the manufacturing method of the nonwoven fabric and can vary the thickness of the product by the number of punching of the needle, the density of the needle, etc., and thus it is most widely used as a filter cloth, artificial leather cloth, civil foam, and the like.

Conventional needle punching methods are largely an opening and blending process in which the raw materials (bundle of yarn fibers) are completely loosened and blended, and a hopper for discharging the opened and blended yarns by a predetermined amount in the conveying direction of the machine. ), A carding process of forming a web in a flat sheet form by spreading a thin hopper, a forming process of adjusting the thickness and width of the web, and a two-dimensional process. Needle punching process that combines the arrangement of the web in three dimensions, cutting process of cutting the needle punched web to a suitable size, and winding process of winding the cut web in the form of a roll Is done.

On the other hand, in recent years, due to the increase in oil prices of petroleum, which is a raw material of synthetic fiber, plastic raw materials, fuel oil, etc., measures for cyclical use of resources have been devised, and technology development for recycling various types of waste synthetic resins is being activated. As a part of this, a method of partially mixing recycled raw materials generated from waste synthetic resins into non-regenerated raw materials, which are raw materials of nonwoven fabrics, is disclosed in Korean Patent Publication No. 10-0744454 by the applicant of the present invention.

However, in the conventional opening and blending process, the recycled and non-regenerated raw materials having different properties are not properly mixed, so that the ratio of the web to the raw materials is not uniformly formed, and thus the properties and properties of the final product are deteriorated. have.

In other words, conventionally, the recycled and non-renewable materials are aggregated without being evenly distributed because the mixing is performed by simply inputting the regenerated and non-renewable materials to the opening machine at a constant mixing ratio and then mixing them during the movement through a roller or the like. Since the composition of the hopper is supplied to the hopper ring irregularly distributed there is a problem that the web organization is not dense.

In addition, due to the characteristics of the manufacturing process in which the web is pulled in the longitudinal direction, the fibers are aligned around the longitudinal direction of the web in the carding process, so that the tensile strength in the width direction is significantly lower than the longitudinal tensile strength of the web. As a result, there is an uneconomical problem in that an unnecessarily large amount of raw material must be added to satisfy the reference strength for the intended use and purpose.

In addition, as in the case of geotextiles, reinforces the support of soft ground, improves the stability of the ground structure with tensile force, absorbs local stresses of external loads, and prevents the loss or mixing of slopes and fine grained soil. Since the installation direction of the web should always be considered, there is a limit that construction and workability can not but be significantly reduced.

Accordingly, various nonwoven fabric manufacturing apparatuses for geotextiles that can reinforce the strength of the web have been proposed. For example, Korean Patent Application Publication No. 2002-0014740, 'Method and Apparatus for Manufacturing Nonwoven Fabric,' Korean Patent Registration Publication No. 10-0807268, 'Low Elongation High Strength Nonwoven Fabric Manufacturing Apparatus and Manufacturing Method' and Korea Registered Utility Model Publication 20- And 0260226, "Random Device for Card Equipment for Manufacturing Nonwovens".

However, this has the purpose of improving the tensile strength of the web in the width direction or the overall tensile strength of the web, respectively, but the raw materials are simply transported and dropped into the mixed tank through the tubular flow path by air pressure or by compressed air or blower. It is only a method of mixing raw materials with non-renewable materials with different physical properties because they cause vortices inside the blending tank with wind, so they are not evenly distributed due to differences in density and specific gravity. If the non-renewable raw material is filled in the inside of the blending tank more than a certain amount, the vortices do not occur properly, do not mix evenly with each other, and as a result, the web structure of the final product is not dense and irregularly formed to cause a problem of poor quality.

Republic of Korea Utility Model Registration 20-0260226 (January 10, 2002) Republic of Korea Patent Publication 10-0744454 (2007.08.01.) Republic of Korea Patent Publication No. 2001-0054758 (2001.07.02.) Republic of Korea Patent Publication No. 2002-0014740 (2002.02.25.) Republic of Korea Patent Registration 10-0807268 (2008.03.03.)

Accordingly, the present inventors emphasized on solving the above-mentioned matters and problems, and a new method capable of minimizing the deviation between the longitudinal tensile strength and the widthwise tensile strength of the web as the recycled and non-renewed materials are evenly mixed and distributed. Invented the present invention during the years of careful research to develop a nonwoven fabric manufacturing apparatus of the type.

Accordingly, it is an object of the present invention to provide a nonwoven fabric manufacturing apparatus that enables the mixing and distribution of recycled and non-regenerated raw materials evenly.

It is another object of the present invention to provide a nonwoven fabric manufacturing apparatus capable of minimizing the deviation between the longitudinal tensile strength and the widthwise tensile strength of the web.

Embodiments of the present invention to achieve the object as described above, the opening and unwinding the bundle of fiber yarns, a blending machine to mix the fiber yarn supplied from the opening machine, and is supplied through the hopper ring machine in the blending machine A carding machine for forming a web by spreading a thin fiber, a forming machine for adjusting the thickness and width of the web supplied through the carding machine, and a needle punching machine for three-dimensionally combining the arrangement of the web supplied through the forming machine It includes, the blending machine is connected through the opening and the conveying pipe and the blending tank for storing a certain amount of fiber yarn, and installed in connection with the conveying pipe in the upper portion in the blending tank and a plurality of unit rods are folded horizontally Stretching the length of the stretched rod is coupled to the extension rod and the outermost unit rod of the stretched rod to expand the length adjustment Foldable means for providing a driving force for the, and is installed rotatably connected to the fiber yarn outlet end of the extension rod discharge pipe for guiding and guiding the discharge of the fiber yarn in an angular direction inclined obliquely to the horizontal plane, and through the discharge pipe It provides a nonwoven fabric manufacturing apparatus comprising a rotating means for rotating the discharge pipe in the horizontal direction so that the discharged fiber yarn scattered in all directions.

As a result, the recycled raw material and the non-regenerated raw material may be uniformly mixed and distributed, and the deviation between the longitudinal tensile strength and the widthwise tensile strength of the web may be minimized.

In another embodiment of the present invention, the carding machine has a cylinder with a needle cloth attached to an outer circumferential surface, a doper installed to contact the outer circumferential surface of the cylinder to separate the web from the cylinder, and the web separated by the doper. It comprises a pair of scrambles attached to the outer circumferential surface to change the fiber yarn direction of the inclined 40 to 50 degrees and the initial direction, the rotation ratio of the doffer and scramble is 1: 0.8, It is possible to provide a nonwoven fabrication apparatus in which the height ratio of the entanglement of the scramble is 4.2: 5 and the number ratio of needles per 1 inch interval is 10: 7.

In another embodiment of the present invention, the folding means is driven and driven pulley to provide a rotational force for the reciprocating motion of the rope coupled with the outermost unit rod of the extension rod, and the driving pulley coupled to provide a driving force And a limit switch installed between the first geared motor and the unit rods of the extension rod to change the rotation direction of the first geared motor according to the contact of the unit rod.

In another embodiment of the present invention, the rotating means rotates the discharge pipe according to the driving of the second geared motor and the second geared motor which are positioned to move simultaneously with the extension rod by the folding means adjacent to the discharge pipe. It may be provided to include a rotary transmission member provided on each of the outer peripheral surface of the rotary shaft and the discharge pipe of the second geared motor.

According to the present invention having the above-described solution and configuration, the extension rod is repeatedly folded or unfolded in the mixed tank, and at the same time, the discharge pipe mounted obliquely at the outlet side end thereof is continuously rotated by the rotating means. The discharge position and direction of the fiber yarn supplied through the feed pipe into the blending tank are continuously changed, and thus, the fiber yarns of recycled and non-regenerated raw materials can be dispersed in all directions and mixed evenly. Not only is the web structure formed more dense and regular, but the arrangement and distribution ratios of the recycled and non-renewable materials are more uniform, thereby improving the strength and quality of the product.

In addition, the present invention is evenly given the longitudinal tensile strength and the width direction tensile strength of the web by setting and applying the optimum ratio of the rotation ratio of the doffer and scramble, their respective needle height ratio and the number of needles per fixed interval, etc. Since the deviation between each other can be minimized, it is possible to easily meet the standard strength for geotextiles even with a small amount of raw material, and it is not necessary to consider the installation direction of the web as in the prior art, thereby greatly improving workability and workability. .

1 is a block diagram schematically showing a nonwoven fabric manufacturing apparatus according to an embodiment of the present invention;
Figure 2 is a schematic view showing the blending machine of the nonwoven fabric manufacturing apparatus according to an embodiment of the present invention,
3 is an enlarged configuration diagram of a local part of FIG. 2;
Figure 4 is a schematic view showing a carding machine of the nonwoven fabric manufacturing apparatus according to an embodiment of the present invention,

Hereinafter, embodiments according to the present invention will be described more specifically with reference to the accompanying drawings.

Prior to this, the following terms are defined in consideration of the functions in the present invention, which specifies that the concept should be construed as a concept consistent with the technical spirit of the present invention and commonly used or commonly recognized in the art.

In addition, when it is determined that the detailed description of known functions or configurations related to the present invention may obscure the gist of the present invention, the detailed description thereof will be omitted.

Here, the accompanying drawings show an exaggerated or simplified part of the description and description for the convenience and clarity of the construction and operation of the technology, and each component does not exactly match the actual size.

As shown in Figure 1, the nonwoven fabric manufacturing apparatus according to an embodiment of the present invention is an opening machine 10, a blending machine 20, a hopper ring 30, a carding machine 40, a forming machine 50 and the needle It is roughly classified into a punching machine 60.

Here, in the opening machine 10 and the blending machine 20, the recycled polyester, the recycled polyethylene, or the non-regenerated polypropylene or the polyester fiber is unwound and fed to the blending machine 20 by unwinding the bundle of fibers having a predetermined ratio. Hopper 30 for discharging the fiber yarn to the carding machine 40 by a predetermined amount, and through the forming machine 50 and the forming machine 50 to adjust the thickness and width of the web supplied through the carding machine 40 The detailed description of the overall configuration of the needle punching machine 60 for three-dimensionally combining the arrangement of the web to be supplied is described in the background art, so that repetitive and detailed description thereof will be omitted.

As shown in Figure 2 and 3, the blending machine 20 of the nonwoven fabric manufacturing apparatus according to an embodiment of the present invention is a portion of mixing the fiber yarn supplied from the opening machine 10, largely mixed cotton tank 21 And an extension rod 22, a folding means, a discharge pipe 23 and a rotation means.

The blending tank 21 is connected through the opening machine 10 and the transfer pipe (T) and has an internal space capable of storing a predetermined amount of fiber yarn.

The extension rod 22 communicates with the transfer pipe T in the upper portion of the mixed tank 21 and is folded in such a manner that at least two or more unit rods are folded or unfolded in a horizontal direction.

The extension rod 22 is a form of a fishing rod that can be folded or unfolded in accordance with the continuous withdrawal and insertion of each unit rod in a state in which a plurality of cylindrical unit rods formed with a larger diameter toward the outside are combined to overlap each other. Similarly provided.

The folding means is coupled to the outermost unit rod of the extension rod 22 to provide a driving force for adjusting the length of the extension rod 22 in the mixed surface tank 21.

Here, the folding means is installed on the upper surface of the mixed tank 21 and driven and driven pulleys (24, 25) to provide a driving force for the reciprocating motion of the rope (24a) coupled to the outermost unit rod of the extension rod (22) ), A first geared motor 26 is installed to be coupled to the driving pulley 24 to provide rotational force, and the first geared motor 26 is in contact with the unit rods of the extension rod 22. At least one limit switch 27 is installed between the unit rods for the control operation of switching the rotation direction of the "

That is, the driving pulley 24 rotates in either direction in accordance with the drive of the first geared motor 26, whereby the rope 24a moves in the horizontal direction and the outermost side of the extension rod 22 fixed thereto. The unit rod is moved to expand the extension rod 22 to extend the length. When the extension rod 22 is unfolded by a certain length, the limit switch 27 disposed at a specific position at which the extension rod 22 is fully expanded and In this case, the limit switch 27 transmits a signal to the first geared motor 26 to change the rotation direction in the opposite direction, so that the rope 24a moves in the opposite direction to the original movement direction, thereby extending the rod ( 22) are folded to minimize the length.

In addition, when the extension rod 22 is folded, the extension rod 22 comes into contact with the limit switch 27 disposed at a specific position where the extension rod 22 is fully folded. In this case, the limit switch 27 signals the first geared motor 26. Rope 24a moves in the original direction of movement and expands the extension rod 22 by transferring the rotation direction back to the original direction, and by repeating this operation, the extension rod 22 continuously expands and The folding operation is performed.

This folding means may of course additionally employ a roller rail method such that the expansion and folding operation of the extension rod 22 can be made more stable.

The discharge pipe 23 is rotatably connected in the horizontal direction to the fiber yarn outlet end of the extension rod 22 to guide and guide the discharge of the fiber yarn in an angular direction inclined obliquely to the horizontal plane.

The rotating means serves to rotate the discharge pipe 23 in the horizontal direction so that the fiber yarn discharged through the discharge pipe 23 is scattered in all directions.

Here, as the rotation means, the second geared motor 28 is provided adjacent to the discharge pipe 23 so as to move at the same time as the extension rod 22 by the folding means, and according to the driving of the second geared motor 28. In order to rotate the discharge pipe 23 in conjunction with the rotation shaft of the second geared motor 28 and the outer circumferential surface of the discharge pipe 23 is provided with a rotation transmission member 29, such as a gear that is engaged with each other to rotate. .

In addition, the second geared motor 28 and the rotation transmission member 29 are protected while being mounted in a separate housing, thereby preventing malfunction or failure due to pinching of the fiber yarn.

That is, the opening machine 10 and the blending tank 21 is connected to the feed pipe (T), and the fiber yarn feed pipe by the air pressure by the blower (P) installed between the blending tank 21 and the feed pipe (T) When (T) is conveyed to the blending tank 21 is carried out the folding operation to be repeatedly folded or unfolded by the folding means that the extension rod 22 installed in connection with the feed pipe (T) in the upper portion inside the blending tank (21) At the same time, the discharge pipe 23 mounted inclined at the fiber yarn discharge port side end of the extension rod 22 is continuously rotated by the rotating means, so that the feed pipe T and the extension rod 22 into the inside of the mixed surface tank 21. ) And the discharge position and direction of the fiber yarn supplied through the discharge pipe 23 is continuously changed, and this is the hopper ring machine 30 in a state in which dispersed and evenly mixed regenerated raw materials and non-regenerated raw material fibers are scattered in all directions. It can be transferred to the carding machine 40 through.

Therefore, the arrangement and distribution ratio of recycled and non-renewable raw materials are more uniform, and the web structure can be more precisely and regularly formed, thereby enhancing the strength or elongation of the product and significantly improving the quality.

As shown in FIG. 4, the carding machine 40 according to the embodiment of the present invention is a portion in which the fiber yarn supplied from the blender 20 is spread out thinly to form a web, and the cylinder 41 and the doffer 42 are large. ), And scrambled 43 is configured.

The cylinder 41 is attached to the outer circumferential surface of the needle cloth (C), and rotates in the conveying direction of the web.

The doffer 42 is attached to the outer circumferential surface with a needle cloth C, and is installed to separate the web from the cylinder 41 and to contact the outer circumferential surface of the cylinder 41 so as to be opposite to the rotational direction of the cylinder 41. Rotation will be linked with.

The scramble (43a, 43b) is provided in a pair of left and right, and the needle cloth (C) is attached to the outer peripheral surface of each, inclined the fiber yarn direction of the web separated by the doffer 42 and 40-50 degrees with the initial direction It is installed to contact the outer circumferential surface of the doffer 42 to change the fork, so that one scramble 43a rotates in a direction opposite to the rotation direction of the doffer 42, and the other scramble 43b adjacent thereto is The rotation is interlocked in the same direction as the rotation direction of the doffer 42.

In particular, the scramble 43 is a configuration for rearranging the fiber yarns arranged in the longitudinal direction of the web in the width direction of the web so that the fiber yarn tissues are irregular and uniformly distributed, and the rotation speed is applied to the doffer 42. By adjusting relatively slowly with respect to the fiber, the fiber yarn direction of the web separated by the doffer 42 is changed to be inclined at about 40 to 50 degrees from the initial formation direction, while maintaining the dense and uniformly distributed state of the fiber yarn tissue. do.

Here, the rotation ratio of the doffer 42 and the scrambler 43 is 1: 0.8, and the height ratio of the needle C of the doffer 42 and the needle C of the scramble 43 is 4.2: 5.0. The number ratio of needles per inch interval is preferably 10: 7.

This is the optimal result obtained by the inventor through repeated experiments, the rotation speed of the doffer 42 is relatively fast compared to the rotation speed of the scramble 43, so that the web is slightly pushed by the doffer 42 and supplied to the scramble. At this time, since the tensile force in the conveying direction (length direction) of the web, which is pulled tightly compared to the width direction of the web, is loosened slightly, the entangled C of the scramble 43 makes the fiber yarn structure of the web natural and flexible. Pulling in the width direction can be rearranged to maintain a more uniform and evenly distributed state of the fiber yarn tissue, thereby minimizing the deviation between the longitudinal tensile strength and the width tensile strength of the web.

In other words, the surface of the cylinder 41, the doffer 42, and the scramble 43 are wound with the needle-like cloth C, which is tightly immersed, respectively, and the web is formed by the rotation of the cylinder 41. Combed between the needles of 42, the fiber yarns are rearranged without distinction between the longitudinal and width directions of the web through the scramble 43, which rotates eight times with respect to the doffer 42 being rotated ten times. It is conveyed toward the forming machine 50.

Non-woven fabric produced by the nonwoven fabric manufacturing apparatus according to an embodiment of the present invention as described above (Examples 1 and 2) and a non-woven fabric manufactured in a state in which there is no difference in the rotation ratio of the dope and scramble using a conventional nonwoven fabric manufacturing apparatus (comparative example Standard tensile strength test for) was carried out and measured according to KS K 2630 civil nonwoven fabric (filter mat) test criteria.

Test results for tensile strength are shown in Table 1 below.

Specification (weight) Comparative example Example 1 Example 2 300g / ㎡
Length: 448N Length: 510N Length: 547 N Width: 746N Width: 696N Width: 672N 500g / ㎡
Length: 870 N Length: 1010N Length: 1045N Width: 1370N Width: 1300N Width: 1245N 1000g / ㎡
Length: 1990N Length: 2240N Length: 2340N Width: 2860N Width: 2613N Width: 2489N

At this time, the first embodiment is a case where the rotation ratio of the dope and scramble is 1: 0.8, the second embodiment is a rotation ratio of the doffer and scramble is 1: 0.8, the height ratio of the immersion of the doffer and the scramble is 4.2: 5 The ratio of the number of needles per 1 inch interval is 10: 7.

As shown in Table 1, it is confirmed that the nonwoven fabric according to the embodiment of the present invention is excellent in that the tensile strength variation in the longitudinal direction and the width direction is not only very small, but also satisfies the performance values required by the corresponding test standards, as compared with the comparative examples. Can be.

Here, the tensile strength in the width direction is much higher than the tensile strength in the width direction in comparison with the longitudinal tensile strengths of Examples 1 and 2 in the comparative example. This is because the original longitudinal direction of the web was changed to the width direction due to the nature of forming the shape and needle punching and cutting while moving in the width direction of the web.

In addition, the fiber mixing rate test according to the standard for the comparative example and Examples 1 and 2 described above was carried out and measured according to the mixing rate test method of the fiber product of KS K 0210.

The test results for the mixing rate are shown in Table 2 below.

Composition fiber
ratio(%) Comparative example Example 1 Example 2 A 7 23 21.5 B 29 22 23.5 C 31 21 26 D 33 24 24

As shown in Table 2, the non-woven fabric according to an embodiment of the present invention is a very uniform mixing rate of each fiber compared to the comparative example, it can be seen that evenly recycled raw material fibers and non-regenerated raw material fibers are evenly mixed and distributed.

On the other hand, the present invention is not limited to the above-described embodiment and the accompanying drawings, various modifications and applications that are not illustrated within the scope not departing from the technical spirit of the present invention, as well as the substitution and equivalent of components As other embodiments may be changed, contents related to modifications and applications of the features of the present invention should be interpreted as being included in the scope of the present invention.

10: opening machine 20: cotton machine
21: mixed tank 22: extension rod
23: discharge pipe 24: drive pulley
24a: rope 25: driven pulley
26: first geared motor 27: limit switch
28: second geared motor 29: rotation transmission member
30: hopper ring machine 40: carding machine
41: cylinder 42: doffer
43: scramble 50: forming machine
60: needle punching machine C: needle cloth
T: transfer pipe P: blowing fan

Claims (4)

An opening machine for unwinding the bundle of fiber yarns, a blending machine for mixing the fiber yarns supplied from the opening machine, a carding machine for forming a web by thinly spreading the fiber yarns supplied through the hopper ring machine in the blending machine, and the carding machine In the non-woven fabric manufacturing apparatus comprising a forming machine for adjusting the thickness and width of the web supplied through the needle, and a needle punching machine for three-dimensionally coupling the arrangement of the web supplied through the forming machine, the blending machine,
A blending tank connected to the opening and the transfer pipe and storing a predetermined amount of fiber yarn;
An extension rod installed at an upper portion of the mixed tank in connection with the transfer pipe, and having a plurality of unit rods folded or extended in a horizontal direction so as to be adjustable in length;
A folding means coupled to the outermost unit rod of the extension rod to provide a driving force for adjusting the length of the extension rod;
A discharge pipe rotatably connected to an end of the fiber yarn outlet of the extension rod to guide and guide the discharge of the fiber yarn in an angular direction inclined obliquely with respect to a horizontal plane;
Rotating means for rotating the discharge pipe in a horizontal direction so that the fiber yarn discharged through the discharge pipe is scattered in all directions;
Nonwoven fabric manufacturing apparatus comprising a.
According to claim 1, The carding machine,
A cylinder attached to the outer circumferential surface;
A doffer installed to contact the outer circumferential surface of the cylinder to separate the web from the cylinder;
It includes a pair of scrambles attached to the outer circumferential surface to change the fiber yarn direction of the web separated by the doffer to be inclined 40 to 50 degrees with the initial direction,
Rotation ratio of the doffer and scramble is 1: 0.8, the height ratio of the needle and the scramble of the scramble of the dopper is 4.2: 5, the number ratio of the number of needles per 1 inch spacing non-woven fabric, characterized in that 10: 7 Device.
The method of claim 1, wherein the folding means,
A driving and driven pulley providing a rotational force for the reciprocating motion of the rope coupled with the outermost unit rod of the extension rod;
A first geared motor for rotationally driving the drive pulley;
A limit switch installed between unit rods of the extension rod to switch the rotation direction of the first geared motor according to the contact of the unit rod;
Nonwoven fabric manufacturing apparatus comprising a.
According to claim 1, The rotating means,
A second geared motor adjacent to the discharge pipe and installed to move simultaneously with the extension rod by the folding means;
A rotation transmission member provided on each of a rotation shaft of the second geared motor and an outer circumferential surface of the discharge tube to rotate the discharge tube according to the driving of the second geared motor;
Nonwoven fabric manufacturing apparatus comprising a.

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