Recycled carbon fiber non-woven fabric manufacturing system including chute carding machine

Abstract

The present invention relates to a chute carding machine (50) used in a recycled carbon fiber non-woven fabric manufacturing system, wherein: the chute carding machine (50) is provided with a main chamber (50-CB) standing vertically and having a space formed therein; a mixed raw material introduction unit (50-1) is installed in the uppermost part of an inner space of the main chamber (50-CB); a first carding unit (50-2) is installed under the mixed raw material introduction unit (50-1); a second carding unit (50-3) is installed under the first carding unit (50-2); and a web forming unit (50-4) is installed under the second carding unit (50-3).

Description

Regenerated carbon fiber nonwoven fabric manufacturing system including a chute carding machine

[0001] The present invention relates to a technology for manufacturing carbon fiber nonwoven fabrics very efficiently using recycled carbon fibers extracted from waste materials such as aircraft, automobiles, and hydrogen fuel tanks.

[0002] More specifically, the present invention relates to a system and method for manufacturing a regenerated carbon fiber nonwoven fabric, including a chute carding machine capable of producing carbon fibers at a faster production speed than the existing carding method and efficiently opening clumped carbon fibers into very thin pieces.

[0003] And, the present invention relates to a technical field that can be expressed as a system for manufacturing a regenerated carbon fiber nonwoven fabric, including a first weighing hopper, a second weighing hopper, a mixing machine, a door opener, a mixing tank, a chute carding machine, an upper punching machine, a lower punching machine, etc.

[0004] In addition, since the present invention is a system in which a plurality of unit devices such as a surface treatment machine are formed as an assembly, it is expressed as a regenerated carbon fiber nonwoven fabric manufacturing system.

[0005] Since the entire assembly of multiple unit devices of the present invention can be viewed as a single nonwoven fabric manufacturing device, the present invention relates to a technical field that can also be expressed as a manufacturing device for a regenerated carbon fiber nonwoven fabric.

[0006] Therefore, the manufacturing system of a regenerated carbon fiber nonwoven fabric described below in the description of the present invention may also be described or defined as a manufacturing device of a regenerated carbon fiber nonwoven fabric.

[0007] Ultimately, the present invention also relates to a technical field related to a manufacturing device for a regenerated carbon fiber nonwoven fabric, including a first weighing hopper, a second weighing hopper, a pressing machine, a door opener, a mixing tank, a chute carding machine, an upper punching machine, a lower punching machine, etc.

[0008] Carbon fiber-reinforced plastics (CFRPs), which contain carbon fibers, are widely used in aircraft and automobile components due to their high strength, rigidity, and lightweight properties. However, because the carbon fibers contained in these materials are expensive, a method has been proposed to extract the carbon fibers from used CFRPs and manufacture recycled carbon fibers.

[0009] In addition, a method for producing non-woven fabric using carbon fibers such as the above-mentioned recycled carbon fiber (RCF) is known.

[0010] However, as in the prior art invention described in the prior art document below, the conventional method and process for manufacturing non-woven fabric using carbon fibers were complicated, so the manufacturing cost was high and it was very inefficient.

[0011]

[0012] That is, prior art document 1 discloses a method for manufacturing a carbon fiber nonwoven fabric, which comprises a dispersion manufacturing process in which a dispersion containing resin and pitch is manufactured, an electrostatic spinning process in which a nonwoven fabric made of a carbon fiber precursor is manufactured from the dispersion by electrostatic spinning, and a modification process in which the carbon fiber precursor of the nonwoven fabric obtained in the electrostatic spinning process is modified into carbon fiber, wherein the modification process comprises a process in which the nonwoven fabric obtained in the electrostatic spinning process is heated to 50 to 4000°C.

[0013] As described above, prior art document 1 has the disadvantage that the manufacturing process is complicated, the manufacturing cost is high, and the quality of the nonwoven fabric is not excellent because it requires a dispersion manufacturing process, an electrostatic spinning process, a carbon fiber modification process, a heating process, etc.

[0014]

[0015] Meanwhile, a card machine is disclosed in prior art document 2, which was previously filed and registered by the applicant of the present invention.

[0016] Prior art document 2 has a problem in that production efficiency is reduced because the web opened in the card machine must be moved to a horizontal forming machine and then formed again.

[0017]

[0018] In addition, since the mixed raw material is transferred into the feed tank (200 FT) and then transferred to the cylinder roller (6-SS) for carding, there is a problem that the mixed raw material stagnates inside the feed tank or the transfer processing speed of the mixed raw material is slow as it moves laterally in the direction of the cylinder roller, which reduces production efficiency. In addition, in order to produce 100% regenerated carbon fiber, carbon fiber raw materials must be carded with very high precision, but there is also a problem that the carding precision is somewhat reduced.

[0019] The present invention enables more precise carding of mixed raw materials and forming of nonwoven fabrics, and increases the processing and production speed of mixed raw materials, thereby doubling processing efficiency and production efficiency.

[0020] As described above, the second embodiment of the present invention enables the production of a 100% recycled carbon fiber nonwoven fabric without mixing resin by precision processing of mixed raw materials.

[0021] In the prior art, the processing was inefficiently performed by dividing it into two devices, namely, a card machine and a horizontal forming machine. However, the present invention enables one chute carding machine to efficiently perform the roles (functions) of the card machine and the horizontal forming machine of the prior art.

[0022]

[0023] In addition, the present invention enables the control of the degree of carding of mixed raw materials or regenerated carbon fibers (RCF) by precisely controlling the position of the first carding roller (50A-WKR) on one side through position control of the first mold spring, thereby enabling carding of mixed raw materials or regenerated carbon fibers (RCF) with the required precision.

[0024]

[0025] And, the initial nonwoven fabric, which is a web laminate (WEBL) laminated on top of the mesh net, is designed to be manufactured with excellent strength by exhausting air to the outside by a blower from below the mesh net and compressing the initial nonwoven fabric while a dropper roller rotates on top of the initial nonwoven fabric.

[0026]

[0027] In addition, we would like to propose a system and manufacturing method for efficiently manufacturing a regenerated carbon fiber nonwoven fabric with excellent quality and performance by the simplest method and process.

[0028] In particular, the present invention aims to propose a very efficient and improved suit carding machine.

[0029] The present invention seeks to increase processing efficiency by using gravity to transport nonwoven fabric raw materials to be processed by installing a second carding unit (50-3) vertically below a first carding unit (50-2).

[0030] The manufacturing system of the regenerated carbon fiber nonwoven fabric of the present invention to solve the above problems is,

[0031] A first weighing hopper (1-1) into which the weight of resin, which is a raw material for a carbon fiber nonwoven fabric, is measured and fed; the resin fed into the first weighing hopper (1-1) is first mixed within the first weighing hopper (1-1);

[0032] Recycled carbon fiber (RCF), which is mixed with the above resin and becomes the raw material of the recycled carbon fiber nonwoven fabric, is fed into a second weighing hopper (1-2) in which the weight is measured; and the recycled carbon fiber (RCF) fed into the second weighing hopper (1-2) is also first loaded into the second weighing hopper (1-2);

[0033] The resin and regenerated carbon fiber (RCF) that have passed through the first weighing hopper (1-1) and the second weighing hopper (1-2) are fed into and mixed in a mixing machine (2), so that the resin and regenerated carbon fiber (RCF) are mixed to form a mixed raw material, and the mixed raw material is subjected to a second mixing in the mixing machine (2);

[0034] The mixed raw material that has been secondarily processed in the pressing machine (2) is transferred to the door opener (3) and opened;

[0035] The mixed raw material opened in the door opener (3) is transferred to the mixing tank (4) and further mixed;

[0036] The mixed raw material mixed in the mixing tank (4) is characterized in that it is transferred to a chute carding machine (50) and further processed.

[0037]

[0038] The mixed raw material transferred to the above-mentioned chute carding machine (50) is

[0039] The web is formed by carding from the upper part of the main chamber (50-CB) of the chute carding machine;

[0040] The above web (WEB) is dropped and laminated onto the web forming unit (50-4) located at the bottom of the main chamber (50-CB) of the chute carding machine (50), thereby becoming an initial nonwoven fabric, which is a web laminate (WEBL);

[0041] The initial nonwoven fabric, which is the above web laminate (WEBL), is transferred to the inside of the upper punching machine (7), and processed by punching the initial nonwoven fabric up and down multiple times by the upper punching machine (7);

[0042] The initial nonwoven fabric processed by the upper punching machine (7) is transported to the inside of the lower punching machine (8) and punched up and down multiple times by the lower punching machine, thereby producing a nonwoven fabric.

[0043]

[0044] And, the height of the main chamber (50-CB) of the above-mentioned suit carding machine (50) is 5M to 6M;

[0045] The uppermost part of the above main chamber (50-CB) is a mixed raw material introduction unit (50-1);

[0046] The mixed raw material fed into the inlet (50-MO) formed in the above mixed raw material introduction unit (50-1) is transported by wind force and gravity and carded in the carding unit.

[0047] The carded web is characterized in that it is transferred to a web forming unit (50-4).

[0048]

[0049] Meanwhile, the above suit carding machine (50);

[0050] It is provided with a main chamber (50-CB) that stands upright in a vertical direction and has an internal space formed;

[0051] The uppermost part of the inner space of the above main chamber (50-CB) becomes a mixed raw material introduction unit (50-1);

[0052] A first carding unit (50-2) is installed at the bottom of the above mixed raw material introduction unit (50-1);

[0053] A second carding unit (50-3) is installed below the first carding unit (50-2);

[0054] It is characterized in that a web forming unit (50-4) is installed at the bottom of the second carding unit (50-3).

[0055]

[0056] In addition, the main chamber (50-CB) is characterized in that an outer auxiliary frame (50-SF) is installed on the outer periphery of the main chamber (50-CB) on which a manager can ride to maintain and manage the main chamber (50-CB).

[0057]

[0058] And, the mixed raw material introduction unit (50-1) is;

[0059] A mixed raw material input pipe (50-INP) having an input port (50-MO) into which mixed raw material transferred from a mixing tank (4) is input;

[0060] The above mixed raw material input pipe (50-INP) is connected to the introduction chamber (50-IN);

[0061] In order to be able to vibrate the above mixed raw material input pipe (50-INP), a motor (50-MT) is installed on a motor installation frame (50-FR) outside the mixed raw material input pipe (50-INP);

[0062] A cam (50-CAM) that converts the rotational motion of the motor into oscillating motion is installed on the rotational axis of the above motor (50-MT);

[0063] A through shaft (50-SFT) installed through the above mixed raw material injection pipe (50-INP); a first fixing bolt (50-BTA) is fastened to one end of the through shaft (50-SFT); and a second fixing bolt (50-BTB) is fastened to the other end of the through shaft (50-SFT);

[0064] It is characterized in that the through shaft (50-SFT) protruding outwardly of the first fixing bolt (50-BTA) and the cam (50-CAM) are connected to each other by a connecting bar (50-BAR).

[0065]

[0066] And, the first embodiment of the present invention relates to a card machine characterized by including a base (100), a feeding tank section (200), a roller and cylinder section (300), and a conveyor section (500).

[0067]

[0068] The manufacturing system of the regenerated carbon fiber nonwoven fabric of the present invention to solve the above problems is,

[0069] In the introduction chamber (50-IN), a mixed raw material storage (50-STR) for temporarily storing mixed raw materials is formed;

[0070] A mixed raw material transfer controller (50-CRU) is installed at the bottom of the above mixed raw material storage (50-STR); and the mixed raw material transfer controller (50-CRU) is characterized in that a weight sensor (50-SEN) for sensing the weight of the mixed raw material passing through the mixed raw material transfer controller is installed.

[0071]

[0072] Meanwhile, the first carding unit (50-2) above;

[0073] A pair of first feed rollers (50A-FER) that rotate in opposite directions;

[0074] A pair of first carding rollers (50A-WKR) installed vertically below the pair of first feed rollers (50A-FER);

[0075] A first race roller (50A-MSD) installed vertically below the first pair of carding rollers (50A-WKR);

[0076] An imaginary vertical line passing through the rotational center axis of the first race roller (50A-MSD) passes through the contact point where the outer peripheries of a pair of first carding rollers (50A-WKR) are in contact with each other, and also passes through the contact point where the outer peripheries of a pair of first feeder rollers (50A-FER) are in contact with each other;

[0077]

[0078] The outer circumference of the first racing roller (50A-MSD) is in contact with the outer circumference of a pair of first carding rollers (50A-WKR) and rotates with each other.

[0079] The mixed raw material is sandwiched between the outer circumference of the first racing roller (50A-MSD) and the outer circumference of the first carding roller (50A-WKR), and the mixed raw material is carded by frictional force;

[0080] Among the pair of first carding rollers (50A-WKR) above, one end of the first mold spring (50A-SPR) is connected to a bracket that supports and connects one side of the first carding roller (50A-WKR),

[0081] The other end of the above first mold spring (50A-SPR) is connected to the mixed raw material transport duct (50-DUK),

[0082] The above mixed raw material transport duct (50-DUK) is connected to the main chamber (50-CD);

[0083]

[0084] The above pair of first feed rollers (50A-FER) and the pair of first carding rollers (50A-WKR) are operated by the power of the first feed carding roller motor (50A-PKM);

[0085] The first racing roller (50A-MSD) is driven by the power of the first racing roller motor (50A-MSM);

[0086] On the outer surface of the first race roller (50A-MSD) above, a spike body (50-SPKM) having a plurality of spikes formed thereon is transplanted at regular intervals on the outer surface;

[0087]

[0088] The diameters of a pair of first feed rollers (50A-FER) are identical;

[0089] The diameters of a pair of first carding rollers (50A-WKR) are also identical;

[0090] The diameter ratio of the first carding roller (50A-WKR), the first feed roller (50A-FER), and the first race roller (50A-MSD) is characterized by being 1:1.2:3.5.

[0091]

[0092] And, the present invention is characterized in that a second carding unit (50-3) is installed below the first carding unit (50-2);

[0093] The above second carding unit (50-3) is;

[0094] A pair of second feed rollers (50B-FER) that rotate in opposite directions;

[0095] A pair of second carding rollers (50B-WKR) installed vertically below the pair of second feed rollers (50B-FER);

[0096] A second race roller (50B-MSD) installed vertically below the above pair of second carding rollers (50B-WKR);

[0097] An imaginary vertical line passing through the rotational center axis of the second race roller (50B-MSD) passes through the contact point where the outer peripheries of a pair of second carding rollers (50B-WKR) are in contact with each other, and also passes through the contact point where the outer peripheries of a pair of second feeder rollers (50B-FER) are in contact with each other;

[0098]

[0099] The outer circumference of the second racing roller (50B-MSD) is in contact with the outer circumference of a pair of second carding rollers (50B-WKR) and rotates with each other, and the mixed material is caught between the outer circumference of the second racing roller (50B-MSD) and the outer circumference of the second carding roller (50B-WKR) and the mixed material is carded by frictional force;

[0100] Among the above pair of second carding rollers (50B-WKR), one end of the second mold spring (50B-SPR) is connected to a bracket that supports and connects one side of the second carding roller (50B-WKR),

[0101] The other end of the above second mold spring (50B-SPR) is connected to the mixed raw material transport duct (50B-DUK),

[0102] The above mixed raw material transport duct (50B-DUK) is connected to the main chamber (50-CD);

[0103]

[0104] The above pair of second feed rollers (50B-FER) and the pair of second carding rollers (50B-WKR) are operated by the power of the second feed carding roller motor (50B-PKM);

[0105] The second racing roller (50B-MSD) is driven by the power of the second racing roller motor (50B-MSM);

[0106] On the outer surface of the second race roller (50B-MSD) above, a spike body (50-SPKM) having a plurality of spikes formed is not transplanted;

[0107]

[0108] A blower (50-BRR) is installed on the upper side of one side of the second racing roller (50B-MSD) in close proximity to the second racing roller (50B-MSD);

[0109] An air discharge pipe (777) is formed protruding in one direction from the blower (50-BRR);

[0110] The direction of the end outlet of the above air discharge pipe (777) is installed so as to face the lower side of the second race roller (50B-MSD);

[0111] In the air discharge pipe (777), the virtual center axis (777-1) of the air discharge pipe (777), which indicates the center of the path flow through which air is discharged as a continuous line, passes through while contacting the outer circumference of the lower side of the second race roller (50B-MSD);

[0112]

[0113] The vertical distance from the lower outer peripheral end of the first race roller (50A-MSD) to the upper outer peripheral end of the second feed roller (50B-FER) is 0.8 times the diameter of the first race roller (50A-MSD);

[0114]

[0115] The diameters of a pair of second feed rollers (50B-FER) are identical;

[0116] The diameters of the pair of second carding rollers (50B-WKR) are also identical;

[0117] The diameters of the first racing roller (50A-MSD) and the second racing roller (50B-MSD) are also identical;

[0118] The diameter ratio of the second carding roller, the second feed roller, and the second race roller is characterized by being 1:1.2:3.5.

[0119]

[0120] Meanwhile, the web forming unit (50-4) above;

[0121] A mesh rotation motor (50-MEMT) and a mesh net (50-MESH) capable of circulating by the rotational force of the mesh rotation motor (50-MEMT);

[0122] A portion of the above mesh network (50-MESH) that moves circularly has a horizontal plane;

[0123] A dropper roller (50-DRFR) that rotates around a roller rotation axis (50-SFAC) at a fixed position while in contact with a web (WEB) laminated on the horizontal surface of the mesh net (50-MESH);

[0124] An air intake passage (50-AISK) continuously formed along the lower part of the horizontal surface of the above mesh net (50-MESH);

[0125] By discharging the internal air of the air intake passage (50-AISK) to the outside of the air intake passage (50-AISK) by a blower connected to the air intake passage (50-AISK), the lower part of the mesh net (50-MESH) is made negatively pressurized, and the web laminate (WEBL) laminated on the horizontal surface of the mesh net (50-MESH) is characterized in that it is adsorbed on the upper surface of the mesh net (50-MESH).

[0126]

[0127] And, the present invention installs an air discharge means for discharging air to the upper part of the mesh net (50-MESH) through an air intake passage (50-AISK) at the lower part of the mesh net,

[0128] It is characterized in that air is discharged to the upper part of the mesh net by the above air discharge means, thereby facilitating separation of the web laminate (WEBL) settled on the upper part of the mesh net.

[0129]

[0130] In addition, the above mesh network (50-MESH) is an infinite track type mesh network;

[0131] Circular movement is possible by the first roller pulley (ROP-1), the second roller pulley (ROP-2), the third roller pulley (ROP-3), the fourth roller pulley (ROP-4), the first tension adjusting roller (ROP-TA), and the second tension adjusting roller (ROP-TB), and the tension of the mesh net can be adjusted;

[0132]

[0133] The circular motion mechanism of the mesh net (50-MESH) is;

[0134] The first roller pulley (ROP-1) installed on the shaft of the mesh rotation motor (50-MEMT);

[0135] A second roller pulley (ROP-2) installed horizontally spaced from the first roller pulley (ROP-1);

[0136] A third roller pulley (ROP-3) installed spaced apart from the lower direction of the second roller pulley (ROP-2);

[0137] A fourth roller pulley (ROP-4) is provided and installed spaced apart from the first roller pulley (ROP-1) in the lower direction;

[0138]

[0139] The above mesh net (50-MESH) is fitted to the outer circumference of the first roller pulley (ROP-1) to the fourth roller pulley (ROP-4);

[0140] A second tension adjusting roller (ROP-TB) is installed on the outside of the mesh net (50-MESH) hanging between the first roller pulley (ROP-1) and the fourth roller pulley (ROP-4) to adjust the tension of the mesh net;

[0141] The mesh net (50-MESH) hanging between the second roller pulley (ROP-2) and the third roller pulley (ROP-3) is characterized by having a first tension adjusting roller (ROP-TA) installed on the outside to adjust the tension of the mesh net.

[0142]

[0143] And, inside the duct connecting the first carding unit (50-2) and the second carding unit (50-3),

[0144] A second mixed raw material conveying controller (50-CRUS) is installed; the second mixed raw material conveying controller (50-CRUS) is characterized in that a second weight sensor is installed to sense the weight of the mixed raw material passing through the second mixed raw material conveying controller.

[0145]

[0146] In addition, a roller rotation axis (50-SFAC) is formed protrudingly on the left and right axes of the above dropper roller (50-DRFR).

[0147] A roller support bar (50-RCBA) to which the above roller rotation axis (50-SFAC) is rotatably coupled;

[0148] At one end of the roller support bar (50-RCBA), a support hole for the roller rotation shaft (50-SFAC) is formed;

[0149] At the other end of the roller support bar (50-RCBA), a number of height adjustment holes (50-HCTH) are formed;

[0150] It is characterized in that the height of the dropper roller (50-DRFR) can be adjusted by inserting a bolt (50-BOLT) into a specific height adjustment hole (50-HCTH) of the roller support bar (50-RCBA) to fasten the roller support bar to the support frame (50-FRAM).

[0151]

[0152] In addition, the mesh net (50-MESH) of the web forming unit (50-4) is characterized by being made of a regenerated carbon fiber nonwoven fabric.

[0153]

[0154] Meanwhile, the diameters of the pair of first feed rollers and the pair of second feed rollers of the present invention are all the same;

[0155] The diameters of the pair of first carding rollers and the pair of second carding rollers are also the same;

[0156] The diameters of the first and second race rollers are also the same;

[0157] The diameter ratio of the first carding roller, the first feed roller, and the first race roller is characterized by being 1:1.2:3.5.

[0158]

[0159]

[0160] And, the present invention is a manufacturing system for a nonwoven fabric of regenerated carbon fiber,

[0161] A first weighing hopper (1-1) into which the weight of resin, which is a raw material for a carbon fiber nonwoven fabric, is measured and fed; the resin fed into the first weighing hopper (1-1) is first mixed within the first weighing hopper (1-1);

[0162] Recycled carbon fiber (RCF), which is mixed with the above resin and becomes the raw material of the recycled carbon fiber nonwoven fabric, is fed into a second weighing hopper (1-2) in which the weight is measured; and the recycled carbon fiber (RCF) fed into the second weighing hopper (1-2) is also first loaded into the second weighing hopper (1-2);

[0163] The resin and regenerated carbon fiber (RCF) that have passed through the first weighing hopper (1-1) and the second weighing hopper (1-2) are fed into and mixed in a mixing machine (2), so that the resin and regenerated carbon fiber (RCF) are mixed to form a mixed raw material, and the mixed raw material is subjected to a second mixing in the mixing machine (2);

[0164] The mixed raw material that has been secondarily processed in the pressing machine (2) is transferred to the door opener (3) and opened;

[0165] The mixed raw material opened in the door opener (3) is transferred to the mixing tank (4) and further mixed;

[0166] The mixed raw material mixed in the mixing tank (4) is transferred to the chute carding machine (50) and further processed;

[0167]

[0168] The mixed raw material transferred to the above-mentioned chute carding machine (50) is carded by a carding means placed on the inner upper part of the main chamber (50-CB) of the chute carding machine (50) to become a web (WEB);

[0169] The above web (WEB) is dropped and laminated on the web forming unit (50-4) arranged vertically below the carding means to become an initial nonwoven fabric, which is a web laminate (WEBL);

[0170] The initial nonwoven fabric, which is the above web laminate (WEBL), is transferred to the inside of the upper punching machine (7), and processed by punching the initial nonwoven fabric up and down multiple times by the upper punching machine (7);

[0171] The initial nonwoven fabric processed by the upper punching machine (7) is transported to the inside of the lower punching machine (8) and punched up and down multiple times by the lower punching machine, thereby producing a nonwoven fabric.

[0172]

[0173] In addition, the above-mentioned chute carding machine (50) includes an introduction chamber (50-IN) in which a mixed raw material input pipe (50-INP) is formed in communication;

[0174] In the introduction chamber (50-IN), a mixed raw material storage (50-STR) for temporarily storing mixed raw materials is formed;

[0175] A mixed raw material transfer controller (50-CRU) is installed at the bottom of the above mixed raw material storage (50-STR); and the mixed raw material transfer controller (50-CRU) is characterized in that a weight sensor (50-SEN) for sensing the weight of the mixed raw material passing through the mixed raw material transfer controller is installed.

[0176]

[0177] And, the carding means includes a first carding unit (50-2);

[0178] In the above first carding unit (50-2);

[0179] A pair of first feed rollers (50A-FER) that rotate in opposite directions;

[0180] A pair of first carding rollers (50A-WKR) are included, which are installed vertically below the pair of first feed rollers (50A-FER);

[0181]

[0182] Among the pair of first carding rollers (50A-WKR) above, one end of the first mold spring (50A-SPR) is connected to a bracket that supports and connects one side of the first carding roller (50A-WKR),

[0183] The other end of the first mold spring (50A-SPR) is connected to a mixed raw material transport duct (50-DUK), and the mixed raw material transport duct (50-DUK) is connected to a main chamber (50-CD);

[0184]

[0185] The above pair of first feed rollers (50A-FER) and the pair of first carding rollers (50A-WKR) are operated by the power of the first feed carding roller motor (50A-PKM);

[0186]

[0187] The diameters of a pair of first feed rollers (50A-FER) are identical;

[0188] It is also characterized by the fact that the diameters of a pair of first carding rollers (50A-WKR) are identical.

[0189]

[0190] Meanwhile, the web forming unit (50-4) above;

[0191] A mesh rotation motor (50-MEMT) and an endless track mesh net (50-MESH) capable of circulating by the rotational force of the mesh rotation motor (50-MEMT);

[0192] A portion of the above mesh network (50-MESH) that moves circularly has a horizontal plane;

[0193] A dropper roller (50-DRFR) that rotates around a roller rotation axis (50-SFAC) at a fixed position while in contact with the upper surface of a web laminate (WEBL) laminated on the horizontal surface of the mesh net (50-MESH);

[0194] An air intake passage (50-AISK) continuously formed along the lower part of the horizontal surface of the above mesh net (50-MESH);

[0195] By discharging the internal air of the air intake passage (50-AISK) to the outside of the air intake passage (50-AISK) by a blower connected to the air intake passage (50-AISK), the lower part of the mesh net (50-MESH) is made negatively pressurized, and the web laminate (WEBL) laminated on the horizontal surface of the mesh net (50-MESH) is characterized in that it is adsorbed on the upper surface of the mesh net (50-MESH).

[0196]

[0197] In addition, a roller rotation axis (50-SFAC) is formed protrudingly on the left and right axes of the above dropper roller (50-DRFR).

[0198] A roller support bar (50-RCBA) to which the above roller rotation axis (50-SFAC) is rotatably coupled;

[0199] At one end of the roller support bar (50-RCBA), a support hole for the roller rotation shaft (50-SFAC) is formed;

[0200] At the other end of the roller support bar (50-RCBA), a number of height adjustment holes (50-HCTH) are formed;

[0201] It is characterized in that the height of the dropper roller (50-DRFR) can be adjusted by inserting a bolt (50-BOLT) into a specific height adjustment hole (50-HCTH) of the roller support bar (50-RCBA) to fasten the roller support bar to the support frame (50-FRAM).

[0202]

[0203] And, in order to be able to vibrate the mixed raw material input pipe (50-INP), a motor (50-MT) is installed on a motor installation frame (50-FR) outside the mixed raw material input pipe (50-INP);

[0204] A cam (50-CAM) that converts the rotational motion of the motor into oscillating motion is installed on the rotational axis of the above motor (50-MT);

[0205] A through shaft (50-SFT) installed through the above mixed raw material injection pipe (50-INP); a first fixing bolt (50-BTA) is fastened to one end of the through shaft (50-SFT); and a second fixing bolt (50-BTB) is fastened to the other end of the through shaft (50-SFT);

[0206]

[0207] It is characterized in that the through shaft (50-SFT) protruding outwardly of the first fixing bolt (50-BTA) and the cam (50-CAM) are connected to each other by a connecting bar (50-BAR).

[0208] The present invention has the effect of performing carding of mixed raw materials and forming of nonwoven fabric more precisely, and increasing the processing and production speed of mixed raw materials or single raw materials (regenerated carbon fiber), thereby doubling processing efficiency and production efficiency.

[0209] In the prior art, it was impossible to produce a 100% recycled carbon fiber nonwoven fabric, but in the second embodiment of the present invention, the production of a 100% recycled carbon fiber nonwoven fabric is possible through precise processing of only recycled carbon fibers without mixing resin, by a recycled carbon fiber nonwoven fabric manufacturing system including a stucco carding machine of the present invention.

[0210]

[0211] In the prior art, the processing was inefficiently performed by dividing it into two devices, namely, a card machine and a horizontal forming machine, but the present invention has the effect of performing the roles (functions) of the card machine and the horizontal forming machine of the prior art with higher performance than the prior art with a single chute carding machine.

[0212]

[0213] In addition, the present invention has the effect of enabling the degree of carding of only mixed raw materials or regenerated carbon fibers (RCF) to be controlled by precisely controlling the position of the first carding roller (50A-WKR) on one side through position control of the first mold spring, and enabling more precise carding of mixed raw materials or regenerated carbon fibers (RCF).

[0214]

[0215] In addition, the present invention has the effect of enabling the initial nonwoven fabric, which is a web laminated on top of a mesh net and a web laminate (WEBL), to be manufactured with high efficiency by discharging air under the mesh net to the outside of the main chamber by a blower, so that the web (WEB) and the web laminate (WEBL) laminated on top of the mesh net are adsorbed on top of the mesh net, and at the same time, a dropper roller rotates on top of the initial nonwoven fabric to compress the initial nonwoven fabric, thereby enabling the initial nonwoven fabric to be manufactured with very high density and strength at high efficiency.

[0216]

[0217] In addition, the present invention has an excellent effect of being able to perform carding very efficiently by installing a second carding unit (50-3) vertically below a first carding unit (50-2), so that nonwoven fabric raw materials (mixed raw materials or single raw materials) that have been carded for the first time by the first carding unit (50-2) fall vertically by gravity and blowing force, and are carded for the second time by the second carding unit.

[0218] In addition, the present invention increases processing efficiency by utilizing gravity in the transport of carded nonwoven fabric raw materials, and the nonwoven fabric raw materials that have been carded for the first time are dropped in a vertical direction and carded for the second time, and the web that has been carded for the second time is also dropped in a vertical direction and settled on the upper part of the mesh net for processing, so that processing energy consumption can be minimized and the manufacturing time can be shortened.

[0219]

[0220] Thus, the present invention is a system and manufacturing method for efficiently manufacturing a regenerated carbon fiber nonwoven fabric having excellent quality and performance through the simplest method and simple process.

[0221] In particular, the present invention has the effect of enabling the production of high-quality recycled carbon fiber nonwoven fabric by very efficiently creating and improving a suit carding machine.

[0222] Figure 1 illustrates the mechanical devices used in each manufacturing process of the regenerated carbon fiber nonwoven fabric of the first embodiment of the present invention, arranged in the order of the processes.

[0223] Figure 2 is a cross-sectional view of the main part of the weighing hopper of the present invention.

[0224] Fig. 3 is a cross-sectional view of the main part of the typewriter of the present invention.

[0225] Fig. 4 is a cross-sectional view of the main part of the door opener of the present invention.

[0226] Figure 5 is a cross-sectional view of the main part of the mixing tank of the present invention.

[0227] Figure 6 is a cross-sectional view of the main part of the card machine of the first embodiment of the present invention.

[0228] Fig. 7 is an enlarged cross-sectional view of a portion of the feeding tank in the card machine of the first embodiment of the present invention.

[0229] Figure 8 is a cross-sectional view of the main part of the horizontal forming machine of the first embodiment of the present invention.

[0230] Figure 9a is a cross-sectional view conceptually illustrating the main part of the upper punching machine of the first embodiment of the present invention.

[0231] Figure 9b illustrates the detailed structure of the needle of the present invention.

[0232] Fig. 10 is a cross-sectional view conceptually illustrating the main part of the lower punching machine of the first embodiment of the present invention.

[0233] Fig. 11 is a cross-sectional view of the main part of the winder of the present invention.

[0234] Figure 12 illustrates RCF used as a raw material of the present invention.

[0235] Figure 13 illustrates a resin used as a raw material of the present invention.

[0236] Figure 14 illustrates the mechanical devices used in each manufacturing process of the regenerated carbon fiber nonwoven fabric of the second embodiment of the present invention, listed in order of the process.

[0237] Fig. 15 is a side cross-sectional view showing the main internal structure of a suit carding machine applied to the second embodiment of the present invention.

[0238] Fig. 16 is a front cross-sectional view showing the main internal structure of a suit carding machine applied to the second embodiment of the present invention.

[0239] Figure 17 is an enlarged view of the first carding unit in the suit carding machine illustrated in Figure 15.

[0240] Figure 18 is an enlarged view of the raw material input pipe and related configuration in the chute carding machine illustrated in Figure 15.

[0241] Figure 19 is an enlarged view of the mesh net and dropper roller and related configuration in the chute carding machine illustrated in Figure 15.

[0242] Figure 20 is a cross-sectional view of an upper punching machine that can be applied to the second embodiment of the present invention.

[0243] Figure 21 is a cross-sectional view of a lower punching machine that can be applied to the second embodiment of the present invention.

[0244] Fig. 22 is a side cross-sectional view showing the main internal structure of the second carding unit applied to the second embodiment of the present invention.

[0245] [Explanation of symbols]

[0246] 1: Weighing hopper, 2: Stamping machine, 3: Door opener, 4: Mixing tank, 5: Carding machine, 6: Horizontal forming machine, 7: Upper punching machine, 8: Lower punching machine, 9: Winder, 50: Chute carding machine

[0247] First, a first embodiment of the present invention will be described.

[0248] The recycled carbon fiber nonwoven fabric of the present invention is manufactured by mixing recycled carbon fiber (RCF, hereinafter referred to as 'RCF') and resin.

[0249] The resin used in the present invention is mainly polypropylene (PP, hereinafter referred to as 'PP'), polyethylene (PE, hereinafter referred to as 'PE'), etc., but other types of resin may also be used.

[0250]

[0251] And, as shown in Figs. 12 and 13, the RCF and resin, which are the raw materials of the regenerated carbon fiber nonwoven fabric of the present invention, are compressed and transported in the form of a fiber lump and brought into the manufacturing plant.

[0252] That is, the RCF and resin in the shape of fibers that have been compressed and transported are clumped together to form a lump.

[0253]

[0254] Meanwhile, terms such as cotton, cotton, web, carding, and mixed raw material used in the present invention can be defined as follows.

[0255] Tamping refers to the process in which compressed fiber-shaped resin or RCF, which has been compressed and transported in a box, etc., is torn and expanded by a tamping roller, thereby removing impurities mixed in it and expanding it cleanly.

[0256]

[0257] Opening refers to the process of spreading out the mixed raw materials by removing the clumped fibers from the mixed raw materials that have been subjected to a spinning process, and removing dust and loose fiber clumps.

[0258] In the present invention, the mixed raw material is opened through beating, and then web-carded through opening.

[0259]

[0260] And, the WEB refers to a small piece of a thin fiber plate organized into a fiber network by releasing the mixed raw material of carbon fiber and resin that has gone through a beating and opening process in the card machine of the present invention, and the web can be laminated in a horizontal forming machine to become an initial nonwoven fabric, which is a preliminary step of a nonwoven fabric.

[0261]

[0262] Meanwhile, carding refers to a process in which mixed raw materials are transferred to a card machine (5) or a chute carding machine (50), and the mixed raw materials are processed and manufactured into a web in the card machine or chute carding machine (50).

[0263]

[0264] And, in the present invention, the resin and RCF that have gone through the first process are fed into and mixed in a mixing machine (2) to form a mixed raw material in which the resin and RCF are mixed.

[0265] The mixed raw material described in the specification of the present invention refers to a mixed raw material in which resin and RCF are mixed.

[0266] In addition, since the present invention also allows for the production of 100% recycled carbon fiber nonwoven fabric using only RCF without mixing resin, a single raw material can be used in the present system instead of a mixed raw material.

[0267]

[0268] In the present invention, a method for manufacturing a nonwoven fabric using recycled carbon fibers comprises the following processes.

[0269] A first embodiment of the present invention will be described with reference to the drawings shown in FIGS. 1 to 13.

[0270]

[0271] The RCF and resin, which are the raw materials for the regenerated carbon fiber nonwoven fabric of the present invention, are compressed and transported in a storage container and brought into the manufacturing plant.

[0272] The RCF and resin in the shape of fibers that have been compressed and transported are clumped together to form a lump, and the RCF and resin are processed while passing through various mechanical devices disclosed below.

[0273]

[0274] FIG. 1 illustrates the process sequence of mechanical devices used in each manufacturing process of the regenerated carbon fiber nonwoven fabric of the present invention, and FIGS. 2 to 11 illustrate the main structure of the mechanical devices for each process, and the present invention will be described with reference to these.

[0275]

[0276] Specifically, the method for manufacturing the regenerated carbon fiber nonwoven fabric of the present invention is described with reference to FIG. 1.

[0277]

[0278] As shown in Fig. 1, the raw materials (resin and RCF) of the regenerated carbon fiber nonwoven fabric of the present invention are processed while being transported in the following order: a weighing hopper (1), a pressing machine (2), a door opener (3), a mixing tank (4), a card machine (5), a horizontal forming machine (6), and a punching machine (7, 8), thereby manufacturing a regenerated carbon fiber nonwoven fabric. The regenerated carbon fiber nonwoven fabric can be wound in a winder (9) and packaged.

[0279]

[0280] Specifically, the present invention comprises a first step in which the weights of resin and RCF, which are raw materials for a regenerated carbon fiber nonwoven fabric, are each measured by a weighing hopper (1), and the weights are first beaten in the weighing hopper (1);

[0281] The resin and RCF that have gone through the first process are fed into and mixed in a molding machine (2), so that the resin and RCF become a mixed raw material, and the second process is where the mixed raw material is subjected to a second molding process in the molding machine (2);

[0282] The mixed raw material that has gone through the second process is transferred to the door opener (3), and the third process is where the mixed raw material is opened in the door opener;

[0283] The mixed raw material that has gone through the third process may be transported to a mixing tank (4) by means of a blower and may include a fourth process in which the mixed raw material is mixed in the mixing tank.

[0284]

[0285] And, the mixed raw material that has gone through the above 4th process is transferred to the card machine (5).

[0286] It may further include a fifth process of carding in a card machine (5) and web-izing.

[0287]

[0288] The method may further include a sixth process of transporting the web manufactured by the fifth process to a horizontal forming machine (6), and spraying and stacking the web on the upper surface of a horizontal forming conveyor (6-CNB) in the horizontal forming machine to manufacture an initial nonwoven fabric on the upper surface of the horizontal forming conveyor (6-CNB).

[0289]

[0290] And, the initial nonwoven fabric laminated on the upper side of the horizontal forming conveyor (6-CNB) by the 6th process is transferred to the upper punching machine (7);

[0291] In the above upper punching machine (7), a seventh process may further be included for manufacturing a nonwoven fabric by vertically punching from the upper surface of the initial nonwoven fabric toward the lower surface with a plurality of needles (7-ND) formed on the punching plate (7-PL), thereby mutually combining the layers of the initial nonwoven fabric formed and laminated by the web.

[0292]

[0293]

[0294] And, the nonwoven fabric manufactured by the 7th process is transferred to the lower punching machine (8),

[0295] In the above lower punching machine (8), the eighth process may further include punching the nonwoven fabric vertically from the lower surface to the upper surface repeatedly a number of times with a plurality of needles (8-ND) coupled to the punching plate (8-PL), thereby further bonding the layers of nonwoven fabric formed and laminated by the web to manufacture the nonwoven fabric.

[0296]

[0297] The eighth process performed by the above lower punching machine (8) may be omitted.

[0298] That is, the nonwoven fabric manufactured by the 7th process performed on the upper punching machine (7) can be directly transferred to the winder (9), wound around a tube, packaged, and shipped as a product.

[0299]

[0300] Meanwhile, a ninth process may be further included, which involves transporting the nonwoven fabric that has gone through the eighth process and winding it onto a pipe installed in a widthr.

[0301]

[0302] As shown in FIG. 9a and FIG. 9b, the upper punching machine (7) is equipped with a needle guide plate (7-GDP) that guides the repetitive up-and-down reciprocating movement of a plurality of needles (7-ND).

[0303]

[0304] The above needle guide plate (7-GDP) is a rectangular plate, and vertical penetration holes are formed corresponding to the number of needles (7-ND) so that the plurality of needles can independently penetrate the plate.

[0305]

[0306] The above needle guide plate (7-GDP) serves to guide the needles (7-ND) so that they can penetrate the initial nonwoven fabric without shaking during the punching movement of the needle guide plate.

[0307]

[0308] That is, when punching the punching plate (7-PL) of the upper punching machine (7), a plurality of needles (7-ND) pass through a plurality of through holes formed in the needle guide plate (7-GDP) respectively, vertically penetrate the initial nonwoven fabric, and hook the carbon fibers present in the lower part of the initial nonwoven fabric to the needle arrow side (7-NDPC) formed at the lower end of the needle (7-ND), thereby pulling them up to the uppermost part of the initial nonwoven fabric, thereby connecting the upper and lower layers of the initial nonwoven fabric.

[0309]

[0310] The above needle arrow side (7-NDPC) is formed in a V shape, so that carbon fibers are caught on the needle arrow side (7-NDPC), and when the needle (7-ND) moves upward, the carbon fibers are caught on the needle arrow side, and when the needle (7-ND) moves downward, the carbon fibers can escape from the needle arrow side (7-NDPC).

[0311]

[0312] Meanwhile, 8,000 to 12,000 needles (7-ND) can be formed on one punching plate (7-PL) of the upper punching machine (7).

[0313] The lower punching machine (8) described below is also the same as the upper punching machine (7) in its conceptual structure, basic punching principle, and effect, except that the punching direction is different.

[0314]

[0315] Meanwhile, below the needle guide plate (7-GDP) of the upper punching machine (7), a needle support (7-NPL) is provided at a certain distance from the needle guide plate.

[0316]

[0317] The above needle support (7-NPL) is a rectangular plate, and a plurality of needle insertion holes (7-NHO) are formed vertically on the upper surface of the plate so that the ends of a plurality of needles (7-ND) can be inserted into the plate;

[0318] When the punching plate (7-PL) of the upper punching machine (7) performs downward punching, the ends of a plurality of needles (7-ND) can be inserted into a plurality of needle insertion holes (7-NHO).

[0319]

[0320] The needle (7-ND), the needle guide plate (7-GDP), and the needle insertion holes (7-NHO) formed in a plurality of vertical holes are formed corresponding to each other, so they are formed on the same vertical line on an imaginary line, and the number of all three is the same.

[0321]

[0322] The weighing hopper (1) illustrated in FIGS. 1 and 2 is equipped with a first weighing hopper (1-1) into which resin is introduced, and a second weighing hopper (1-2) into which RCF is introduced, so that the resin and RCF can be introduced into the weighing hoppers separately.

[0323]

[0324] That is, the weight of the resin fed into the first weighing hopper (1-1) can be measured and the weight of the resin fed into the weighing hopper can be adjusted;

[0325] By measuring the weight of RCF fed into the second weighing hopper (1-2), the weight of RCF fed into the weighing hopper can be adjusted.

[0326]

[0327] In the total weight % of resin and RCF, the weight % of RCF can be mixed from 30 wt% to 70 wt%.

[0328]

[0329] Meanwhile, as shown in FIGS. 12 and 13, the resin, which is the raw material of the regenerated carbon fiber nonwoven fabric of the present invention, is made of fibers and clumped together to form a lump, and the RCF is also made of fibers and clumped together to form a lump.

[0330]

[0331] As shown in FIGS. 1 and 2, the first weighing hopper (1-1) is equipped with a first conveyor (1-1CV) having a first slope that increases in height in the direction of movement of the resin lumps fed into the weighing hopper, and a second conveyor (1-2CV) that loads the resin lumps that have passed through the first conveyor and transports them to a pressing machine.

[0332]

[0333] The above second conveyor (1-2CV) also has a second inclined plane whose height increases in the direction of progression of the resin mass.

[0334]

[0335] The inclination angle (θ2) of the second inclined surface with respect to the horizontal plane is 2 to 2.5 times the inclination angle (θ1) of the first inclined surface with respect to the horizontal plane; the inclination angle (θ1) of the first inclined surface with respect to the horizontal plane can be formed to be 17° to 22°.

[0336] And, the inclination angle (θ2) of the second slope with respect to the horizontal plane can be formed to be 34° to 55°.

[0337] When maintained at the above-mentioned angle of inclination, the transport and surface treatment of RCF and resin can be performed most efficiently.

[0338]

[0339] As described above, the slope angle must be set so that the first and second slopes form slopes in which the elevations are gradually increased, so that the resin lumps or RCF lumps are not transferred all at once, and an appropriate amount that can efficiently proceed on the other side can be transferred.

[0340]

[0341] As described above, the reason why the inclination angle (θ2) of the second inclined surface with respect to the horizontal plane is formed to be 2 to 2.5 times the inclination angle (θ1) of the first inclined surface with respect to the horizontal plane is to prevent inefficiency of the surface by simultaneously transporting the resin lumps or RCF lumps to the raw material surface roller (1-TR) installed close to the upper part of the second conveyor (1-2CV) by gravity.

[0342]

[0343] Meanwhile, the second weighing hopper (1-2) also has a first conveyor (1-1CV) having a first slope that increases in height in the direction of travel of the RCF lumps fed into the weighing hopper, and a second conveyor (1-2CV) that loads the RCF lumps that have passed through the first conveyor and transports them to a flattening machine.

[0344]

[0345] The above second conveyor (1-2CV) also has a second inclined plane whose height increases in the direction of travel of the RCF mass.

[0346]

[0347] The inclination angle (θ2) of the second inclined surface with respect to the horizontal plane is 2 to 2.5 times the inclination angle (θ1) of the first inclined surface with respect to the horizontal plane, and the inclination angle (θ1) of the first inclined surface with respect to the horizontal plane can be formed to be 17° to 22°.

[0348]

[0349] A number of spikes are installed on the upper surfaces of the first and second conveyors, so that the resin lump or RCF lump can be transported by being caught on the spikes.

[0350]

[0351] And, the reason why the inclination angle (θ1) of the first inclined plane of the first conveyor (1-1CV) with respect to the horizontal plane is formed smaller than the inclination angle (θ2) of the second inclined plane with respect to the horizontal plane is that the first inclined plane of the first conveyor (1-1CV) does not perform the roughing of the resin lump or RCF lump, but only transports the resin lump or RCF lump, so even if the inclination angle is made small, the work efficiency does not decrease.

[0352]

[0353] However, the angle of inclination (θ1) of the first inclined surface with respect to the horizontal plane should also be slightly increased so that the resin lumps or RCF lumps are not transported all at once, thereby improving work efficiency.

[0354]

[0355] As described above, the weighing hopper (1) is provided separately with a first weighing hopper (1-1) into which resin is introduced and a second weighing hopper (1-2) into which RCF is introduced.

[0356] The internal structure and operation / function of the first weighing hopper (1-1) and the second weighing hopper (1-2) are the same, but it can be seen that the only difference between the first weighing hopper (1-1) and the second weighing hopper (1-2) is the raw material (resin or RCF) to be transported.

[0357]

[0358] Meanwhile, in the present invention, a first weighing hopper (1-1) into which resin is introduced and a second weighing hopper (1-2) into which RCF is introduced are provided, but when a nonwoven fabric is manufactured using only 100% carbon fiber without mixing resin, resin may not be introduced into the first weighing hopper (1-1).

[0359]

[0360] As shown in Fig. 2, a weight sensor (1-1SN) is installed at the exit of the first conveyor (1-1CV) to control the transport weight of the resin lump or RCF lump.

[0361]

[0362] And, in order to measure the weight of the lump of resin or RCF that has been transported by being loaded on the second conveyor (1-2CV) and then transport it to the loading machine (2), a load cell (1-1RDS) is installed inside the exit passage (1-SPV) of the weighing hopper so that only an appropriate amount of resin or RCF can be transported to the loading machine (2).

[0363]

[0364] And, as shown in Fig. 2, a raw material roller (1-TR) is installed in close proximity to the second conveyor (1-2CV) at the upper part of the second conveyor (1-2CV) so as to be able to roller the resin or RCF transported by the second conveyor (1-2CV).

[0365]

[0366] In addition, a raw material transfer roller (1-LR) is installed in the upper part of the inside of the outlet passage (1-SPV) of the weighing hopper, close to the second conveyor (1-2CV), so that the resin or RCF that has been ground on the upper part of the second conveyor (1-2CV) can be transferred to the sintering machine (2) through the outlet passage (1-SPV).

[0367]

[0368] And, as shown in Fig. 3, inside the casing of the cylindrical roller (2), one cylindrical roller (2-RR) is installed, and a number of spikes (2-SPK) are protruded and formed on the cylindrical outer periphery of the cylindrical roller (2-RR).

[0369] The above cylindrical roller (2-RR) can rotate around the axis of the cylinder, and the resin and RCF transferred from the weighing hopper (1) are mixed by hitting a number of spikes (2-SPK) on the outer periphery of the cylinder of the cylindrical roller (2-RR) or the outer periphery of the cylinder, and can be mixed to form a mixed raw material and be subjected to a rubbing action.

[0370]

[0371] As described above, the resin and RCF injected into the pressing machine (2) are rotated by being caught by a rotating cylindrical roller and a number of spikes (2-SPK) and the pressing process proceeds.

[0372]

[0373]

[0374] As shown in Fig. 4, a cylindrical walker having a number of teeth formed on the cylindrical surface is arranged inside the casing of the door opener (3).

[0375]

[0376] The above walker is installed with five walkers, from the first walker (3-1WKR) to the fifth walker (3-5WKR); the cylindrical walkers slide against each other along the outer periphery of the cylinder;

[0377] The first worker (3-1WKR) to the third worker (3-3WKR) can be installed so as to contact the outer periphery of the cylinder.

[0378]

[0379] A fourth worker (3-4WKR) is installed vertically above the third worker (3-3WKR) and in contact with the cylindrical outer periphery of the third worker (3-3WKR), so that the fourth worker can apply a downward force to the third worker (3-3WKR);

[0380] The fifth worker (3-5WKR) is installed on top of the fourth worker (3-4WKR) and in contact with the cylindrical outer periphery of the fourth worker;

[0381] The fifth walker (3-5WKR) is installed in contact with the casing and cylindrical outer periphery of the door opener;

[0382] The fifth walker (3-5WKR) can apply force to the upper side of the fourth walker (3-4WKR).

[0383]

[0384] And, the mixed raw material processed in the mixing machine (2) is transported through the chute (3-STR) of the door opener; and can be loaded and transported on the conveyor (3-KBR) of the door opener;

[0385] The mixed raw material transported by the door opener's conveyor (3-KBR) is opened by passing through the mutually contacting outer surfaces of the cylinders of the first worker (3-1WKR) to the third worker (3-3WKR), thereby performing opening of the mixed raw material very efficiently.

[0386] Meanwhile, a sensor (3-SNR) is installed inside the chute (3-STR) of the door opener so that when mixed raw materials accumulate inside the chute, the chute passage can be blocked.

[0387]

[0388] As shown in Fig. 5, an inclined conveyor (4-CBR) of a mixing tank installed at a certain angle (θ3) from the horizontal plane is installed inside the casing of the mixing tank (4), and a plurality of spikes (Spikes, 4-SPK) are installed on the upper surface of the inclined conveyor (4-CBR).

[0389] A first beater roller (4-2IBT) is installed at the upper end of the inclined conveyor (4-CBR) to prevent clumping of the mixed raw material being transported, and a second beater roller (4-2BT) is installed at the upper exit end of the inclined conveyor (4-CBR) to transport the mixed raw material to the exit.

[0390]

[0391] The mixing raw materials can be mixed most efficiently when the angle of inclination of the inclined conveyor (4-CBR) in the mixing tank with respect to the horizontal plane is set to a certain angle (θ3) of 55° to 70°.

[0392]

[0393] Meanwhile, the mixed raw material processed and transported from the door opener (3) is loaded and transported on the upper side of the horizontal conveyor (4-CBH) of the mixing tank, and then transported and mounted on the inclined conveyor (4-CBR);

[0394] The inclined conveyor (4-CBR) can be rotated continuously and repeatedly; the mixed raw material loaded on the upper part of the inclined conveyor (4-CBR) can be remixed for a certain period of time until the mixture is matured inside the casing of the mixing tank while generating a vortex (4-SKW) on the upper part of the inclined conveyor (4-CBR).

[0395]

[0396] The card machine of the present invention will be described in detail with reference to FIGS. 6 and 7.

[0397] The card machine of the present invention is a carding device that processes and webs mixed raw materials fed into the card machine while passing them through a roller and cylinder unit (300).

[0398]

[0399] The card machine of the present invention in FIGS. 6 and 7 is a card machine specialized for installation in a regenerated carbon fiber nonwoven fabric manufacturing system, and is also a device specialized for producing regenerated carbon fiber nonwoven fabric.

[0400]

[0401] And the card machine (5) shown in Fig. 6 can be configured to include a base (100), a cotton supply tank (200), a roller and cylinder part (300), a cover part (400), and a conveyor part (500).

[0402]

[0403] The above-mentioned feeding tank part (200) is vertically protruded and installed on the upper surface of the base (100), and the casing of the feeding tank (200FT) is plate-shaped;

[0404] The interior of the above-mentioned surface tank (200FT) is hollow (200MS); and the hollow shape is characterized by being plate-shaped.

[0405]

[0406] And, the mixed raw material processed in the mixing tank (4) is transported by wind force into the hollow space (200MS) of the feeding tank (200FT) through the transport passage formed in the upper part of the feeding tank section (200).

[0407]

[0408] The mixed raw material loaded into the above-mentioned feeding tank (200FT) is transferred to the lower part of the feeding tank (200FT) by the blowing force applied from the upper part to the lower part of the hollow part (200MS) of the feeding tank and the oscillation of a pair of oscillating panels (200SP) installed inside the feeding tank;

[0409] The above mixed raw material can be transferred to the roller and cylinder section (300) of the card machine and processed into a web.

[0410]

[0411] As described above, since the shape of the inner hollow portion (200MS) of the feeding tank (200FT) is plate-shaped, the mixed raw material accumulated inside the feeding tank is also plate-shaped, and by the blowing force blowing downward from the inner upper portion of the feeding tank and the oscillating force of the oscillating panel (200SP) installed inside the feeding tank, the mixed raw material accumulated inside the feeding tank is transferred to the lower portion of the feeding tank and moved to the roller and cylinder portion (300) to enable efficient processing.

[0412]

[0413] As shown in Fig. 7, a motor (200M) and a cam (200C) are installed on the upper part of a feeding tank (200FT); one side of a connecting rod (200B) is installed on a motor shaft (200MS) of the motor (200M), and the other side of the connecting rod (200B) is in contact with the cam (200C), so that the rotational motion of the motor (200M) is converted into an oscillating motion, and as the motor (200M) rotates, a pair of oscillating panels (200SP) connected to the cam (200C) can oscillate.

[0414]

[0415] The above mixed raw material can be transported to the lower part of the feeding tank (200FT) by the blowing force applied from the upper part to the lower part of the hollow part (200MS) of the feeding tank and the oscillation of the oscillating panel (200SP) installed inside the feeding tank.

[0416]

[0417] The web manufactured in the card machine (5) is discharged by branching into an upper web (6A-WEB) discharged to the upper conveyor (500-UC) of the card machine and a lower web (6B-WEB) discharged to the lower conveyor (500-BC) of the card machine.

[0418] This has the groundbreaking effect of pluralizing the discharge passages of the card machine, preventing the discharge of the discharged web from being delayed due to bottlenecks.

[0419]

[0420] The web manufactured in the card machine as described above can be transported and mounted inside the carriage (6-CAR) of the horizontal forming machine (6) as shown in Fig. 8.

[0421] The above-mentioned bogie (6-CAR) is installed on a cable (6-RIL) placed on the upper side of the horizontal forming conveyor (6-CNB) of the horizontal forming machine (6);

[0422] The bogie (6-CAR) installed on the cable (6-RIL) is spaced apart from each other in the upper space of the horizontal forming conveyor (6-CNB).

[0423]

[0424] The interior of the above-mentioned cart (6-CAR) has a certain space, and a number of holes are formed on the lower floor of the cart space to allow the web to be discharged and dropped downward.

[0425] The above-mentioned cart (6-CAR) repeats left-right reciprocating motion on the upper side of the horizontal forming conveyor (6-CNB), thereby spraying and stacking the web on the upper surface of the horizontal forming conveyor (6-CNB); thus, an initial nonwoven fabric can be manufactured on the upper side of the horizontal forming conveyor (6-CNB).

[0426]

[0427] Meanwhile, as illustrated in FIG. 6, a pair of mixed raw material transport rollers (200RR) are installed at the lower outlet of the feeding tank (200FT) of the card machine of the present invention.

[0428]

[0429] The circumferential surface of the mixed raw material conveying roller (200RR) has a number of teeth formed along the circumference, so that the mixed raw material discharged from the bottom of the feeding tank can be easily discharged by the teeth.

[0430]

[0431] The mixed raw material conveyed by the above mixed raw material conveying roller (200RR) is dispersed by the liquefier roller (6-RKI) that rotates around the roller axis, and a certain amount can be conveyed to the circumference of the cylinder roller (6-SS) that rotates around the roller axis.

[0432]

[0433] As described above, the mixed raw material transferred to the circumference of the cylinder roller (6-SS) can be processed into a web (WEB) while passing between a plurality of worker rollers (6-WRK) and strip rollers (6-STB) that each rotate around the roller axis and the cylinder roller (6-SS).

[0434]

[0435] The above-mentioned licker roller (6-RKI), strip bar roller (6-STB), top doper roller (6-DPA), bottom doper roller top doper roller (6-DPB), multiple worker rollers (6-WRK) and strip bar roller (6-STB), cylinder roller (6-SS), etc. are all cylindrical flat rollers and do not have protrusions or the like on their surfaces.

[0436]

[0437] And, as described above, one of the main technical features of the present invention is that the processed web (WEB) passes between the worker roller (6-WRK) and the strip roller (6-STB) and the cylinder roller (6-SS) installed in the card machine of the present invention and is discharged by branching into the upper web (6A-WEB) and the lower web (6A-WEB).

[0438]

[0439] That is, the processed web (WEB) passes between the worker roller (6-WRK) and strip roller (6-STB) and the cylinder roller (6-SS), is pulled by the top doffer roller (6-DPA), and the upper web (6A-WEB) is discharged along the upper part of the upper conveyor (500-UC);

[0440]

[0441] On the other hand, the processed web (WEB) passing between the worker roller (6-WRK) and the strip roller (6-STB) and the cylinder roller (6-SS) is pulled by the lower roller (6-DPB) and the lower web (6B-WEB) is discharged along the upper part of the lower conveyor (500-BC).

[0442]

[0443] And, in the upper doper roller (6-DPA), a Huangshin roller (6-HAS) is installed in contact with the circumference of the upper doper roller (6-DPA), and the Huangshin roller (6-HAS) performs the function of cleaning the upper doper roller.

[0444]

[0445] Likewise, a huangxin roller is installed in contact with the circumference of the huangxin roller (6-DPB) on the huangxin roller, and the huangxin roller performs the function of cleaning the huangxin roller.

[0446] And, in the direction in which the web is discharged from the top roller (6-DPA), a scrim ball roller (6-SCB) is installed in contact with the circumference of the top roller (6-DPA), and one more scrim ball roller (6-SCB) is installed in contact with the circumference of the scrim ball roller (6-SCB) in the direction in which the web is discharged.

[0447] The above two scrim ball rollers (6-SCB) perform the function of pulling the web discharged from the top doffer roller (6-DPA) so that it comes out evenly.

[0448]

[0449] Meanwhile, two scrim ball rollers are installed in the lower doper roller (6-DPB) with the same structure as the scrim ball rollers installed in the upper doper roller (6-DPA).

[0450]

[0451] And, the scrim ball roller (6-SCB) installed closest to the discharge passage through which the web is discharged is equipped with a cop box (6-CBX) installed in contact with the outer periphery of the scrim ball roller (6-SCB).

[0452] The above-mentioned Cobb Box (6-CBX) has a vibration means installed inside and vibrates, and transmits the vibration force to the scrim ball roller, thereby performing the function of shaking off the web attached to the outer periphery of the scrim ball roller.

[0453]

[0454] As described above, the present invention can efficiently discharge a web processed and discharged from a card machine by pluralizing discharge passages, thereby doubling the production capacity of nonwoven fabric per unit time.

[0455] That is, it has a groundbreaking effect of pluralizing the discharge paths of the web manufactured in the card machine, thereby preventing the discharge of the web from being delayed due to a bottleneck.

[0456]

[0457] The card machine (5) of the present invention is configured to include a base (100), a feeding tank section (200), a roller and cylinder section (300), and a conveyor section (500).

[0458]

[0459] The regenerated carbon fiber nonwoven fabric of the present invention is defined as a regenerated carbon fiber nonwoven fabric manufactured using part or all of the composition of the manufacturing method described above.

[0460]

[0461]

[0462] Next, a second embodiment of the present invention is described below.

[0463] The present invention can be expressed as a system for manufacturing a regenerated carbon fiber nonwoven fabric including a first weighing hopper, a second weighing hopper, a mixing machine, a door opener, a mixing tank, a chute carding machine, an upper punching machine, a lower punching machine, etc.

[0464] In addition, since the present invention is a system in which a plurality of unit devices, such as a pressing machine, are formed as an assembly, it is expressed as a regenerated carbon fiber nonwoven fabric manufacturing system.

[0465] However, since the entire assembly of multiple unit devices of the present invention can be viewed as a single nonwoven fabric manufacturing device, the present invention can also be expressed as a manufacturing device for a regenerated carbon fiber nonwoven fabric.

[0466] Therefore, the manufacturing system of a regenerated carbon fiber nonwoven fabric described below in the description of the present invention may be described or defined as a manufacturing device of a regenerated carbon fiber nonwoven fabric.

[0467] Ultimately, the present invention also relates to a manufacturing device for a regenerated carbon fiber nonwoven fabric, including a first weighing hopper, a second weighing hopper, a pressing machine, a door opener, a mixing tank, a chute carding machine, an upper punching machine, a lower punching machine, etc.

[0468] A second embodiment of the present invention is illustrated in FIGS. 14 to 22.

[0469] The overall configuration of the manufacturing system of the regenerated carbon fiber nonwoven fabric of the second embodiment of the present invention is illustrated in Fig. 14.

[0470] As shown in Fig. 14, in place of the card machine (5) and horizontal forming machine (6) in the first embodiment of the present invention, the second embodiment of the present invention is installed with only a chute carding machine (50).

[0471] That is, in the first embodiment of the present invention, if the card machine (5) and the horizontal forming machine (6) are excluded and a chute carding machine (50) is placed in place of the card machine (5) and the horizontal forming machine (6), the second embodiment of the present invention is obtained.

[0472]

[0473] Therefore, the second embodiment of the present invention is described focusing on the suit carding machine (50).

[0474] Except for the chute carding machine, the components of the second embodiment, namely the weighing hopper (1), the pressing machine (2), the door opener (3), the mixing tank (4), the upper punching machine (7), the lower punching machine (8), and the winder (9), are the same in the first and second embodiments.

[0475]

[0476] Therefore, the detailed configurations of the weighing hopper (1), the pressing machine (2), the door opener (3), the mixing tank (4), and the winder (9) that are also applied to the second embodiment are the same as those of the first embodiment of the present invention, and therefore, their description is omitted.

[0477] The above configurations of the first embodiment and the second embodiment of the present invention are the same, and the configuration of the first embodiment described above can be applied to the second embodiment of the present invention.

[0478]

[0479] However, when describing the second embodiment of the present invention below, the configuration that is specifically changed or added to the first embodiment may be different from the configuration of the second embodiment and the first embodiment.

[0480]

[0481] The overall configuration of the manufacturing system for the second embodiment of the present invention, a regenerated carbon fiber nonwoven fabric, is illustrated in Fig. 14.

[0482]

[0483] As shown in Fig. 14, the second embodiment of the present invention is a system for manufacturing a regenerated carbon fiber nonwoven fabric,

[0484] A first weighing hopper (1-1) into which the weight of resin, which is a raw material for a carbon fiber nonwoven fabric, is measured and fed; the resin fed into the first weighing hopper (1-1) is first mixed within the first weighing hopper (1-1);

[0485] Recycled carbon fiber (RCF), which is mixed with the above resin and becomes the raw material of the recycled carbon fiber nonwoven fabric, is fed into a second weighing hopper (1-2) in which its weight is measured; and the recycled carbon fiber (RCF) fed into the second weighing hopper (1-2) is also firstly loaded into the second weighing hopper (1-2).

[0486]

[0487] Meanwhile, without putting resin into the first weighing hopper (1-1), only recycled carbon fiber (RCF) can be put into the second weighing hopper (1-2).

[0488] Because, when manufacturing 100% recycled carbon fiber (RCF) nonwoven fabric, there is no need to add resin.

[0489] Accordingly, the raw material processed in the manufacturing system of the regenerated carbon fiber nonwoven fabric may be a mixed raw material or a single raw material, but in the following description of the invention, it is generally described as a mixed raw material, and when it is necessary to specifically indicate it as a single raw material, it is indicated as a 'single raw material'.

[0490]

[0491] The resin and regenerated carbon fiber (RCF) that have passed through the first weighing hopper (1-1) and the second weighing hopper (1-2) are fed into and mixed in a mixing machine (2), so that the resin and regenerated carbon fiber (RCF) are mixed to form a mixed raw material, and the mixed raw material is subjected to a second mixing in the mixing machine (2);

[0492] The mixed raw material that has been secondarily processed in the pressing machine (2) is transferred to the door opener (3) and opened;

[0493] The mixed raw material opened in the door opener (3) is transferred to the mixing tank (4) and further mixed;

[0494] The mixed raw material mixed in the mixing tank (4) is transferred to the chute carding machine (50) and further processed.

[0495]

[0496] The mixed raw material transferred to the above-mentioned chute carding machine (50) is carded at the upper part of the main chamber (50-CB) of the chute carding machine to become a web (WEB);

[0497] The above web (WEB) is dropped and laminated onto the web forming unit (50-4) located at the bottom of the main chamber (50-CB) of the chute carding machine (50), thereby becoming an initial nonwoven fabric, which is a web laminate (WEBL);

[0498] The initial nonwoven fabric, which is the above web laminate (WEBL), is transferred to the inside of the upper punching machine (7), and processed by punching the initial nonwoven fabric up and down multiple times by the upper punching machine (7);

[0499] The initial nonwoven fabric processed by the upper punching machine (7) is transferred to the inside of the lower punching machine (8) and punched up and down multiple times by the lower punching machine, thereby manufacturing a nonwoven fabric.

[0500]

[0501] The height of the main chamber (50-CB) of the suit carding machine (50) shown in Fig. 15 is 5M to 6M.

[0502] The main chamber (50-CB), which is the body of the chute carding machine, is entirely upright. At the top of the main chamber (50-CB), a mixed material input pipe (50-INP) is horizontally connected to the upright main chamber.

[0503]

[0504] The uppermost part of the above main chamber (50-CB) is a mixed raw material introduction unit (50-1);

[0505] The mixed raw material fed into the inlet (50-MO) formed in the above mixed raw material introduction unit (50-1) is transported by wind force and gravity, and is continuously carded in the first carding unit (50-2) and the second carding unit (50-3), and then transported to the web forming unit (50-4) for processing.

[0506]

[0507] The carding means of the present invention is composed of a first carding unit (50-2) and a second carding unit (50-3).

[0508]

[0509] The suit carding machine (50) shown in Figs. 15 and 16;

[0510] A main chamber (50-CB) is provided that stands upright in a vertical direction and has an internal space formed therein;

[0511] The uppermost part of the inner space of the above main chamber (50-CB) becomes a mixed raw material introduction unit (50-1);

[0512] A first carding unit (50-2) is installed at the bottom of the above mixed raw material introduction unit (50-1);

[0513] A second carding unit (50-3) is installed below the first carding unit (50-2);

[0514] A web forming unit (50-4) is installed at the bottom of the second carding unit (50-3).

[0515]

[0516] The main chamber (50-CB) is formed by integrally connecting an introduction chamber (50-IN) forming a mixed raw material introduction unit (50-1), a chamber forming a first carding unit (50-2), a chamber forming a second carding unit (50-3), and a chamber forming a web forming unit (50-4) to form one main chamber (50-CB).

[0517]

[0518] That is, the mixed raw material (which may be a single raw material of regenerated carbon fiber (RCF) only) fed into the inlet (50-MO) formed in the mixed raw material introduction unit (50-1) is carded while being transported downward inside the main chamber (50-CB) by the blowing force and gravity, and is then transported to the web forming unit (50-4) located at the lowest position. Therefore, the main chamber (50-CB) can be seen to have the function and role of a very large pipe (housing).

[0519]

[0520] As shown in Fig. 16, an outer auxiliary frame (50-SF) is installed on the outer periphery of the main chamber (50-CB) on which a manager can ride to maintain and manage the main chamber (50-CB).

[0521] The main chamber (50-CB) is upright and has a height of 5 to 6 meters, so that a manager can ride on an outer auxiliary frame (50-SF) made of a ladder, etc., to maintain and inspect the nonwoven fabric manufacturing system.

[0522]

[0523] As shown in Fig. 18, the mixed raw material introduction unit (50-1);

[0524] A mixed raw material input pipe (50-INP) having an input port (50-MO) into which mixed raw material transferred from a mixing tank (4) is input;

[0525] The above mixed raw material input pipe (50-INP) is connected to the introduction chamber (50-IN);

[0526] In order to be able to vibrate the above mixed raw material input pipe (50-INP), a motor (50-MT) is installed on a motor installation frame (50-FR) outside the mixed raw material input pipe (50-INP);

[0527] A cam (50-CAM) that converts the rotational motion of the motor into oscillating motion is installed on the rotational axis of the above motor (50-MT);

[0528] A through shaft (50-SFT) installed through the above introduction chamber (50-IN); a first fixing bolt (50-BTA) is fastened to one end of the through shaft (50-SFT); and a second fixing bolt (50-BTB) is fastened to the other end of the through shaft (50-SFT);

[0529]

[0530] By means of a connecting bar (50-BAR), the through shaft (50-SFT) protruding outward from the first fixing bolt (50-BTA) and the cam (50-CAM) are connected to each other.

[0531]

[0532] By the structure as described above, the rotation of the rotation shaft of the motor (50-MT) is converted into an oscillating motion by the cam (50-CAM) eccentrically connected to the rotation shaft of the motor (50-MT), and transmitted to the connecting bar (50-BAR), and the oscillating motion of the connecting bar (50-BAR) is transmitted to the through shaft (50-SFT), and the oscillating motion of the through shaft (50-SFT) oscillates the mixed raw material input pipe (50-INP), so that the mixed raw material or single raw material input into the raw material input pipe is smoothly transported by the blowing force and oscillation blown into the raw material input pipe without being caught inside the mixed raw material input pipe (50-INP).

[0533]

[0534] As shown in FIGS. 15 and 16, a mixed raw material storage (50-STR) for temporarily storing mixed raw materials is formed in the introduction chamber (50-IN);

[0535] At the bottom of the above mixed raw material storage (50-STR), a mixed raw material transfer controller (50-CRU) is installed; and a weight sensor (50-SEN) that senses the weight of the mixed raw material passing through the mixed raw material transfer controller (50-CRU) is installed in the mixed raw material transfer controller.

[0536]

[0537] By the structure as described above, the mixed raw material or single raw material transferred from the mixing tank (4) is temporarily stored in the mixed raw material storage (50-STR, only single raw material can be stored), and when sensed by the weight sensor (50-SEN), the control unit (not shown) of the manufacturing system of the regenerated carbon fiber nonwoven fabric controls so that only a preset amount of weight is transferred toward the lower carding unit.

[0538]

[0539] The first carding unit (50-2) illustrated in FIG. 17 and FIG. 15;

[0540] A pair of first feed rollers (50A-FER) that rotate in opposite directions;

[0541] A pair of first carding rollers (50A-WKR) installed vertically below the pair of first feed rollers (50A-FER);

[0542] A first race roller (50A-MSD) installed vertically below the first pair of carding rollers (50A-WKR);

[0543] An imaginary vertical line passing through the rotational center axis of the first racing roller (50A-MSD) passes through the contact points where a pair of first carding rollers (50A-WKR) come into contact with each other, and also passes through the contact points where a pair of first feeder rollers (50A-FER) come into contact with each other;

[0544]

[0545] The outer circumference of the first racing roller (50A-MSD) contacts the outer circumference of a pair of first carding rollers (50A-WKR) and rotates with each other to card mixed or single raw materials;

[0546] Among the pair of first carding rollers (50A-WKR) above, one end of the first mold spring (50A-SPR) is connected to a bracket that supports and connects one side of the first carding roller (50A-WKR),

[0547] The other end of the above first mold spring (50A-SPR) is connected to the mixed raw material transport duct (50A-DUK),

[0548] The above mixed raw material transport duct (50-DUK) is connected to the main chamber (50-CD);

[0549]

[0550] The above pair of first feed rollers (50A-FER) and the pair of first carding rollers (50A-WKR) are operated by the power of the first feed carding roller motor (50A-PKM);

[0551] The first racing roller (50A-MSD) is driven by the power of the first racing roller motor (50A-MSM);

[0552] On the outer surface of the first race roller (50A-MSD), a spike body (50-SPKM) having a plurality of spikes formed thereon is formed by transplanting it at regular intervals on the outer surface of the first race roller (50A-MSD).

[0553]

[0554] Next, we will look at the working relationship of the first carding unit.

[0555] The above first carding unit (50-2) is a pair of first feed rollers (50A-FER) that rotate in opposite directions, and a mixed raw material or a single raw material (the mixed raw material or the single raw material is referred to as raw material) flowing in from the upper portion of a pair of first feed rollers (50A-FER) is transported downward by the frictional force of the feed rollers between the pair of first feed rollers (50A-FER) facing each other.

[0556] And, a pair of first carding rollers (50A-WKR) that receive raw materials supplied from the pair of feed rollers and perform carding are provided vertically below a pair of first feed rollers (50A-FER).

[0557]

[0558]

[0559] The above pair of first carding rollers (50A-WKR) transport the raw material in the upper outer circumferential direction of the rotating first race roller (50A-MSD), and rotate in mutual contact with the first race roller (50A-MSD) to card the raw material.

[0560] The raw material is conveyed and carded through a path that passes between a pair of first feed rollers, between a pair of first carding rollers, and between the lower surface of a pair of first carding rollers and the upper surface of the first race roller (50A-MSD).

[0561]

[0562]

[0563]

[0564] Among the pair of first carding rollers (50A-WKR) above, one end of the first mold spring (50A-SPR) is connected to a bracket that supports and connects one side of the first carding roller (50A-WKR),

[0565] The other end of the first mold spring (50A-SPR) is connected to a mixed material transport duct (50-DUK), and the mixed material transport duct (50-DUK) is connected to a main chamber (50-CD).

[0566]

[0567] The above pair of first feed rollers (50A-FER) and the pair of first carding rollers (50A-WKR) are rotated by the power of the first feed carding roller motor (50A-PKM);

[0568] The first racing roller (50A-MSD) rotates by the power of the first racing roller motor (50A-MSM).

[0569]

[0570] And, the function and effect of the first mold spring (50A-SPR) are as follows.

[0571] The first mold spring (50A-SPR) has the function of limiting the horizontal movement of the first carding roller (50A-WKR) on one side and controlling the frictional force between the first carding roller (50A-WKR) and the first race roller (50A-MSD).

[0572] Specifically, by adjusting the length of the control bolt (50-BOLT) coupled to the first mold spring (50A-SPR), the maximum gap between a pair of first carding rollers (50A-WKR) can be adjusted.

[0573] The increase or decrease in friction between the first carding roller (50A-WKR) and the first race roller (50A-MSD) on one side can be controlled.

[0574]

[0575] Accordingly, the system manager of the present invention can adjust the setting position of the first mold spring (50A-SPR) according to the type of raw material and the specifications of the nonwoven fabric.

[0576]

[0577]

[0578] As shown in FIG. 22 and FIG. 15, a second carding unit (50-3) is installed below the first carding unit (50-2); and the second carding unit (50-3);

[0579] A pair of second feed rollers (50B-FER) that rotate in opposite directions;

[0580] A pair of second carding rollers (50B-WKR) installed vertically below the pair of second feed rollers (50B-FER);

[0581] A second race roller (50B-MSD) installed vertically below the above pair of second carding rollers (50B-WKR);

[0582] An imaginary vertical line passing through the rotational center axis of the second racing roller (50B-MSD) passes through the contact point where a pair of second carding rollers (50B-WKR) come into contact with each other, and also passes through the contact point where a pair of second feeder rollers (50B-FER) come into contact with each other.

[0583]

[0584] The outer circumference of the second racing roller (50B-MSD) is in contact with the outer circumference of a pair of second carding rollers (50B-WKR) and rotates with each other, and the raw material is carded between the lower surface of the pair of second carding rollers and the upper surface of the second racing roller (50B-MSD) by the frictional force of the rollers.

[0585]

[0586] Among the above pair of second carding rollers (50B-WKR), one end of the second mold spring (50B-SPR) is connected to a bracket that supports and connects one side of the second carding roller (50B-WKR),

[0587] The other end of the second mold spring (50B-SPR) is connected to a mixed material transport duct (50B-DUK), and the mixed material transport duct (50B-DUK) is connected to a main chamber (50-CD).

[0588]

[0589] The above pair of second feed rollers (50B-FER) and the pair of second carding rollers (50B-WKR) are operated by the power of the second feed carding roller motor (50B-PKM);

[0590] The second racing roller (50B-MSD) is driven by the power of the second racing roller motor (50B-MSM).

[0591]

[0592] On the outer surface of the second race roller (50B-MSD) above, a spike body (50-SPKM) having a plurality of spikes formed thereon can be formed without being transplanted at regular intervals on the outer surface.

[0593] Since a large number of spikes are not formed on the outer surface of the second roller (50B-MSD), carding can be performed more precisely.

[0594] That is, by performing carding roughly and extensively on the first race roller equipped with spikes and performing carding more precisely on the second race roller (50B-MSD) without spikes, the carding efficiency can be doubled.

[0595]

[0596] Meanwhile, a blower (50-BRR) is installed on the upper side of one side of the second racing roller (50B-MSD) in close proximity to the second racing roller (50B-MSD);

[0597] An air discharge pipe (777) is formed protruding in one direction from the blower (50-BRR);

[0598] The direction of the end outlet of the above air discharge pipe (777) is installed so as to face the lower side of the second race roller (50B-MSD);

[0599] In the air discharge pipe (777), the virtual center axis (777-1) of the air discharge pipe (777), which indicates the center of the path flow through which air is discharged as a continuous line, is characterized in that it passes through while contacting the outer circumference of the lower side of the second race roller (50B-MSD).

[0600]

[0601] By this configuration, the strong blowing force discharged from the air discharge pipe (777) can very efficiently drop the mixed raw material or single raw material attached to the lower side of the second roller (50B-MSD), thereby greatly improving the production efficiency of the system.

[0602]

[0603] The components of the second carding unit (50-3) are generally the same as those of the first carding unit (50-2) in terms of their components and operational relationships, with the only difference being their installation locations. However, in addition to the configuration of the first carding unit (50-2), the second carding unit (50-3) is further provided with a blower (50-BRR) that applies blowing force in the tangential direction of the cylinder of the second race roller (50B-MSD).

[0604] Additionally, there is a difference in that spikes may not be installed on the surface of the second race roller (50B-MSD).

[0605]

[0606] The above blower (50-BRR) applies a blowing force in the lower tangential direction of the cylinder of the second race roller (50B-MSD) to drop the web attached to the lower side of the second race roller (50B-MSD), thereby increasing processing efficiency and doubling the productivity of the regenerated carbon fiber nonwoven fabric.

[0607]

[0608] Meanwhile, the vertical distance from the lower outer peripheral end of the first race roller (50A-MSD) to the upper outer peripheral end of the second feed roller (50B-FER) is 0.8 times the diameter of the first race roller (50A-MSD).

[0609] As described above, since the first race roller (50A-MSD) and the second feed roller (50B-FER) are spaced apart as described above, the mixed raw material, which has been friction-processed on the first race roller (50A-MSD) and has increased in temperature, is cooled by air flowing inside the mixed raw material transport duct (50A-DUK) and is then transported to the next carding means, thereby increasing processing efficiency.

[0610]

[0611] The web forming unit (50-4) illustrated in FIG. 19 and FIG. 15;

[0612] A mesh rotation motor (50-MEMT) and a mesh net (50-MESH) capable of circulating by the rotational force of the mesh rotation motor (50-MEMT);

[0613] A portion of the above mesh network (50-MESH) that moves circularly has a horizontal plane;

[0614] A dropper roller (50-DRFR) that rotates around a roller rotation axis (50-SFAC) at a fixed position while in contact with a web (WEB) laminated on the horizontal surface of the mesh net (50-MESH);

[0615] An air intake passage (50-AISK) continuously formed along the lower part of the horizontal surface of the above mesh net (50-MESH);

[0616] A system for manufacturing a regenerated carbon fiber nonwoven fabric is disclosed, characterized in that the lower part of a mesh net (50-MESH) is made negatively pressurized by discharging the internal air of the air intake passage (50-AISK) to the outside of the air intake passage (50-AISK) by a blower connected to the air intake passage (50-AISK), and a web (WEB) laminated on the horizontal surface of the mesh net (50-MESH) is adsorbed on the upper surface of the mesh net (50-MESH).

[0617]

[0618] The above-mentioned air intake passage (50-AISK) is formed with a number of holes that allow air to flow, and is connected to the lower part of the mesh net (50-MESH).

[0619]

[0620] As described above, by adsorbing the web with air on the upper part of the mesh, the strength and density of the produced regenerated carbon fiber nonwoven fabric can be increased, and the production of a nonwoven fabric with excellent material can be achieved through nonwoven punching.

[0621]

[0622] In addition, in order to facilitate the separation of the web laminate (WEBL) settled on the upper part of the mesh net (50-MESH), as opposed to adsorbing the web (WEB) to the upper surface of the mesh net (50-MESH), an air exhaust means for exhausting air to the upper part of the mesh net (50-MESH) through an air intake passage (50-AISK) can be installed at the lower part of the mesh net.

[0623]

[0624] By discharging air to the upper part of the mesh net through the above air discharge means, it is possible to facilitate separation of the web laminate (WEBL) settled on the upper part of the mesh net.

[0625] This is because the web laminate (WEBL) placed on the upper part of the mesh must be easily separated from the upper part of the mesh because it must be moved for the subsequent upper punching process.

[0626]

[0627] Meanwhile, the mesh net (50-MESH) is an infinite track type mesh net;

[0628] Circular movement is possible by the first roller pulley (ROP-1), the second roller pulley (ROP-2), the third roller pulley (ROP-3), the fourth roller pulley (ROP-4), the first tension adjusting roller (ROP-TA), and the second tension adjusting roller (ROP-TB), and the tension of the mesh net can be adjusted;

[0629]

[0630] The caterpillar type means a closed, single-ring type, like a belt that rotates while being hung on multiple roller pulleys.

[0631]

[0632] The circular motion mechanism of the mesh net (50-MESH) is;

[0633] The first roller pulley (ROP-1) installed on the shaft of the mesh rotation motor (50-MEMT);

[0634] A second roller pulley (ROP-2) installed horizontally spaced from the first roller pulley (ROP-1);

[0635] A third roller pulley (ROP-3) installed spaced apart from the lower direction of the second roller pulley (ROP-2);

[0636] A fourth roller pulley (ROP-4) is provided and installed spaced apart from the first roller pulley (ROP-1) in the lower direction;

[0637]

[0638] The above mesh net (50-MESH) is fitted to the outer circumference of the first roller pulley (ROP-1) to the fourth roller pulley (ROP-4);

[0639] A second tension adjusting roller (ROP-TB) is installed on the outside of the mesh net (50-MESH) hung between the first roller pulley (ROP-1) and the fourth roller pulley (ROP-4) to adjust the tension of the mesh net; and a first tension adjusting roller (ROP-TA) is installed on the outside of the mesh net (50-MESH) hung between the second roller pulley (ROP-2) and the third roller pulley (ROP-3) to adjust the tension of the mesh net.

[0640]

[0641] And, inside the duct connecting the first carding unit (50-2) and the second carding unit (50-3),

[0642] A second mixed raw material conveying controller (50-CRUS) is installed; a second weight sensor for sensing the weight of the mixed raw material passing through the second mixed raw material conveying controller (50-CRUS) may be installed in the second mixed raw material conveying controller.

[0643]

[0644] Accordingly, the system control unit can control the weight of the raw material transported into the duct by controlling the second mixed raw material transport controller (50-CRUS).

[0645]

[0646] And, on the left and right axles of the dropper roller (50-DRFR), a roller rotation axis (50-SFAC) is formed protrudingly,

[0647] A roller support bar (50-RCBA) to which the above roller rotation axis (50-SFAC) is rotatably coupled;

[0648] At one end of the roller support bar (50-RCBA), a support hole for the roller rotation shaft (50-SFAC) is formed;

[0649] At the other end of the roller support bar (50-RCBA), a number of height adjustment holes (50-HCTH) are formed;

[0650] By inserting a bolt (50-BOLT) into a specific height adjustment hole (50-HCTH) of the above roller support bar (50-RCBA), the roller support bar can be fastened to the support frame (50-FRAM), thereby allowing the height of the dropper roller (50-DRFR) to be adjusted.

[0651]

[0652] By adjusting the installation height of the dropper roller (50-DRFR), the thickness of the web laminate (WEBL) laminated on top of the mesh net can be easily adjusted.

[0653]

[0654] And, the mesh net (50-MESH) of the web forming unit (50-4) can be made of recycled carbon fiber nonwoven fabric.

[0655] When a mesh net is formed with a non-woven fabric of recycled carbon fiber, the mesh net has excellent tensile strength, durability, and strength, and when there is air absorption under the mesh net, the mutual adhesiveness between the web laminate (WEBL) laminated on the upper part of the mesh net and the upper surface of the mesh net is excellent, and when there is no air absorption under the mesh net, the web laminate (WEBL) laminated on the upper part of the mesh net is easily separated from the surface of the mesh net.

[0656] That is, the detachment effect of the web laminate (WEBL) laminated on top of the mesh net is very excellent.

[0657]

[0658] Meanwhile, the diameters of the pair of first feed rollers and the pair of second feed rollers are all the same;

[0659] The diameters of the pair of first carding rollers and the pair of second carding rollers are also the same;

[0660] The diameters of the first and second race rollers are also the same;

[0661] The diameter ratio of the first carding roller, the first feed roller, and the first race roller is characterized by being 1:1.2:3.5.

[0662]

[0663] As described above, by making the diameter of the large diameter roller 3.5 times that of a carding roller, the raw material falling between the outer periphery of the pair of carding rollers by the large diameter roller installed to block the vertical lower portion of the pair of carding rollers does not fall freely in the vertical direction, but falls on the upper circumferential surface of the large diameter roller, and the raw material falling on the upper circumferential surface of the large diameter roller is caught between the lower outer periphery of the pair of carding rollers and the upper circumferential surface of the large diameter roller and carded, thereby extending the carding time and increasing the carding efficiency.

[0664]

[0665] And, in the second embodiment, as shown in FIG. 20, although the vertical length of the needle (7-ND) in FIG. 9a of the first embodiment is expressed as long, the vertical length of the needle (7-ND) may be formed short so that when the punching plate (7-PL) on which a plurality of needles are formed punches the initial nonwoven fabric as much as possible in the downward direction, the lower surface of the punching plate (7-PL) is completely in contact with the upper surface of the needle guide plate (7-GDP).

[0666]

[0667] In addition, the needle support (7-NPL), the punching plate (7-PL), and the needle guide plate (7-GDP) can be heated by a heating means (not shown) to heat the initial nonwoven fabric or nonwoven fabric during the punching process and perform punching processing at the same time.

[0668] In addition, punching processing is possible even in a non-heated state (room temperature) using the needle support (7-NPL), punching plate (7-PL), and needle guide plate (7-GDP).

[0669]

[0670] In addition, although the above configuration is described with reference to Fig. 9a regarding the upper puncher (7), the configuration regarding the upper puncher (7) described above can be equally applied to the lower puncher (8) of Fig. 10, only the punching direction is reversed.

Claims

1. As a manufacturing device for a non-woven fabric made of regenerated carbon fiber, A first weighing hopper (1-1) into which the weight of resin, which is a raw material for a carbon fiber nonwoven fabric, is measured and fed; the resin fed into the first weighing hopper (1-1) is first mixed within the first weighing hopper (1-1); Recycled carbon fiber (RCF), which is mixed with the above resin and becomes the raw material of the recycled carbon fiber nonwoven fabric, is fed into a second weighing hopper (1-2) in which the weight is measured; and the recycled carbon fiber (RCF) fed into the second weighing hopper (1-2) is also first loaded into the second weighing hopper (1-2); The resin and regenerated carbon fiber (RCF) that have passed through the first weighing hopper (1-1) and the second weighing hopper (1-2) are fed into and mixed in a mixing machine (2), so that the resin and regenerated carbon fiber (RCF) are mixed to form a mixed raw material, and the mixed raw material is subjected to a second mixing in the mixing machine (2); The mixed raw material that has been secondarily processed in the pressing machine (2) is transferred to the door opener (3) and opened; The mixed raw material opened in the door opener (3) is transferred to the mixing tank (4) and further mixed; The mixed raw material mixed in the mixing tank (4) is transferred to the chute carding machine (50) and further processed; The mixed raw material transferred to the above-mentioned chute carding machine (50) is carded by a carding means placed on the inner upper part of the main chamber (50-CB) of the chute carding machine (50) to become a web (WEB); The above web (WEB) is dropped and laminated on the web forming unit (50-4) arranged vertically below the carding means to become an initial nonwoven fabric, which is a web laminate (WEBL); The initial nonwoven fabric, which is the above web laminate (WEBL), is transferred to the inside of the upper punching machine (7), and is processed by punching the initial nonwoven fabric up and down multiple times by the upper punching machine (7); The initial nonwoven fabric processed by the upper punching machine (7) is transferred to the inside of the lower punching machine (8) and punched up and down multiple times by the lower punching machine, thereby manufacturing a nonwoven fabric; The above-mentioned chute carding machine (50) includes an introduction chamber (50-IN) in which a mixed raw material input pipe (50-INP) is formed; In the introduction chamber (50-IN), a mixed raw material storage (50-STR) for temporarily storing mixed raw materials is formed; At the bottom of the above mixed raw material storage (50-STR), a mixed raw material transport controller (50-CRU) is installed; a weight sensor (50-SEN) that senses the weight of the mixed raw material passing through the mixed raw material transport controller is installed in the mixed raw material transport controller (50-CRU); The above carding means includes a first carding unit (50-2); In the above first carding unit (50-2); A pair of first feed rollers (50A-FER) that rotate in opposite directions; A pair of first carding rollers (50A-WKR) are included, which are installed vertically below the pair of first feed rollers (50A-FER); Among the pair of first carding rollers (50A-WKR) above, one end of the first mold spring (50A-SPR) is connected to a bracket that supports and connects one side of the first carding roller (50A-WKR), The other end of the first mold spring (50A-SPR) is connected to a mixed raw material transport duct (50-DUK), and the mixed raw material transport duct (50-DUK) is connected to a main chamber (50-CD); The above pair of first feed rollers (50A-FER) and the pair of first carding rollers (50A-WKR) are operated by the power of the first feed carding roller motor (50A-PKM); The diameters of a pair of first feed rollers (50A-FER) are identical; The diameters of the pair of first carding rollers (50A-WKR) are also identical; The above web forming unit (50-4) is; A mesh rotation motor (50-MEMT) and an endless track mesh net (50-MESH) capable of circulating by the rotational force of the mesh rotation motor (50-MEMT); A portion of the above mesh network (50-MESH) that moves circularly has a horizontal plane; A dropper roller (50-DRFR) that rotates around a roller rotation axis (50-SFAC) at a fixed position while in contact with the upper surface of a web laminate (WEBL) laminated on the horizontal surface of the mesh net (50-MESH); An air intake passage (50-AISK) continuously formed along the lower part of the horizontal surface of the above mesh net (50-MESH); A device for manufacturing a regenerated carbon fiber nonwoven fabric, characterized in that the lower part of a mesh net (50-MESH) is made negatively pressurized by discharging the internal air of the air intake passage (50-AISK) to the outside of the air intake passage (50-AISK) by a blower connected to the air intake passage (50-AISK), and the web laminate (WEBL) laminated on the horizontal surface of the mesh net (50-MESH) is adsorbed on the upper surface of the mesh net (50-MESH).

2. In paragraph 1, On the left and right axles of the above dropper roller (50-DRFR), a roller rotation axis (50-SFAC) is formed protrudingly, A roller support bar (50-RCBA) to which the above roller rotation axis (50-SFAC) is rotatably coupled; At one end of the roller support bar (50-RCBA), a support hole for the roller rotation shaft (50-SFAC) is formed; At the other end of the roller support bar (50-RCBA), a number of height adjustment holes (50-HCTH) are formed; A device for manufacturing a regenerated carbon fiber nonwoven fabric, characterized in that the roller support bar (50-RCBA) can be fastened to a support frame (50-FRAM) by inserting a bolt (50-BOLT) into a specific height adjustment hole (50-HCTH) of the roller support bar (50-RCBA), thereby enabling height adjustment of a dropper roller (50-DRFR).

3. In paragraph 2, In order to be able to vibrate the above mixed raw material input pipe (50-INP), a motor (50-MT) is installed on a motor installation frame (50-FR) outside the mixed raw material input pipe (50-INP); A cam (50-CAM) that converts the rotational motion of the motor into oscillating motion is installed on the rotational axis of the above motor (50-MT); A through shaft (50-SFT) installed through the above mixed raw material injection pipe (50-INP); a first fixing bolt (50-BTA) is fastened to one end of the through shaft (50-SFT); and a second fixing bolt (50-BTB) is fastened to the other end of the through shaft (50-SFT); A device for manufacturing a regenerated carbon fiber nonwoven fabric, characterized in that a through shaft (50-SFT) protruding outwardly from a first fixing bolt (50-BTA) and the cam (50-CAM) are connected to each other by a connecting bar (50-BAR).

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