Manufacturing apparatus for recycle pet coated yarn

Abstract

An invention relating to a device for manufacturing recycled PET coated yarn is disclosed. The device for manufacturing recycled PET coated yarn according to the present invention comprises: a winding unit for winding PET; a hopper unit for supplying a coating material; an extrusion molding unit connected to the winding unit and the hopper unit, which extrudes PET unwound from the winding unit and the coating material supplied from the hopper unit to form a coated yarn; a cooling unit for cooling the coated yarn extruded in the extrusion molding unit; a tensioning unit for tensioning the coated yarn cooled in the cooling unit; and a winding unit for winding the coated yarn discharged from the tensioning unit.

Description

Technology Field

[0001] The present invention relates to a device for manufacturing recycled PET coated yarn, and more specifically, to an eco-friendly device for manufacturing recycled PET coated yarn capable of manufacturing coated yarn using recycled PET material. Background Technology

[0003] Technologies for manufacturing coated yarns and woven fabrics using them are being developed through various methods. Research is being conducted on the development of equipment technology and extrusion processing technology that utilizes polyethyleneterephthalate (PET) primarily as a core yarn to form a yarn core layer for manufacturing coated yarns, enabling the applied core yarn to reach the center of the coated yarn.

[0004] Furthermore, polyolefin resins ranging from polyvinyl chloride (PVC) to polyurethane resin, polyethylene resin, polyethylene copolymer resin, polypropylene resin, polypropylene copolymer resin, and blends thereof are being used as coating layers for these coated yarns. Various research is being conducted on materials to improve adhesion between coated yarns or between dissimilar fabrics by introducing diverse variations to these coating layer materials.

[0005] However, despite various developments being made regarding such coated yarns, there are problems in that it is difficult to achieve durability, abrasion resistance, and antibacterial properties with conventional fiber yarns. Therefore, there is a need to improve this.

[0006] The background technology of the present invention is disclosed in Korean Registered Patent Publication No. 10-1699131 (Registered on January 17, 2017; Title of Invention: Silicone coated yarn, method for manufacturing the same, woven fabric the same, and coating composition used therein). The problem to be solved

[0008] The present invention was created to solve the above-mentioned problems, and the objective of the present invention is to provide an eco-friendly recycled PET coated yarn manufacturing apparatus capable of manufacturing coated yarn using recycled PET material. means of solving the problem

[0010] A recycled PET coated yarn manufacturing apparatus according to the present invention may include: a unwinding unit for unwinding PET; a hopper unit for supplying a coating material; an extrusion molding unit connected to the unwinding unit and the hopper unit, which extrudes the PET unwound from the unwinding unit and the coating material supplied from the hopper unit to form a coated yarn; a cooling unit for cooling the coated yarn extruded in the extrusion molding unit; a tensioning unit for tensioning the coated yarn cooled in the cooling unit; and a winding unit for winding the coated yarn discharged from the tensioning unit.

[0011] In the present invention, the extrusion molding unit may include: an extrusion molding housing connected to the unwinding unit and the hopper unit; a screw unit rotatably mounted in the internal space of the extrusion molding housing and extruding the PET unwound from the unwinding unit and the coating material supplied from the hopper unit while rotating them to form the coating yarn; a plurality of blowers arranged along the longitudinal direction of the screw unit and supplying air into the extrusion molding housing; a heater unit arranged along the longitudinal direction of the screw unit and providing heat to the coating yarn; and a twisting unit connected to the end of the screw unit and twisting the coating yarn moved by the screw unit.

[0012] In the present invention, the screw portion may include: a screw body portion formed in a cylindrical shape and rotatably mounted in the internal space of the extrusion molding housing; a spiral portion formed in a spiral shape on the outer surface of the screw body portion; and a mixing portion mounted on the screw body portion and configured to mix the PET and the coating material.

[0013] In the present invention, the mixing part may include a mixing body part mounted on the outer surface of the screw body part; and a plurality of mixing protrusions that protrude in the longitudinal direction of the screw body part and are formed along the circumferential direction of the mixing body part.

[0014] In the present invention, the mixing part may include a mixing body part mounted on the outer surface of the screw body part; and a plurality of mixing protrusions that protrude diagonally from the screw body part and are formed along the circumferential direction of the mixing body part.

[0015] In the present invention, the twisting portion may include: a twisting housing mounted on the end of the screw portion; a twisting carrier portion mounted on the twisting housing and connected to the end of the screw portion, into which the coated yarn is fed; a rotating portion rotatably mounted on the twisting housing and connected to the twisting carrier portion; and a drawing portion mounted on the rotating portion, into which the coated yarn twisted by the rotating portion is drawn out.

[0016] In the present invention, the coating material may include at least one of TPU (Thermoplastic Polyurethane) and TPO (Thermoplastic Polyolefin). Effects of the invention

[0018] According to the recycled PET coated yarn manufacturing apparatus of the present invention, coated yarn can be manufactured using recycled PET material, making it environmentally friendly.

[0019] In addition, according to the present invention, a product made from this coated yarn may have wear resistance, antibacterial, and antiviral functions. Brief explanation of the drawing

[0021] FIG. 1 is a conceptual diagram schematically illustrating a recycled PET coated yarn manufacturing apparatus according to one embodiment of the present invention. FIG. 2 is a conceptual diagram schematically showing an extrusion molding section according to one embodiment of the present invention. FIG. 3 is a perspective view schematically showing a screw portion according to one embodiment of the present invention. FIG. 4 is a perspective view schematically showing a screw portion according to another embodiment of the present invention. FIG. 5 is an assembled perspective view schematically showing a twisted portion according to one embodiment of the present invention. FIG. 6 is a perspective view schematically showing a twisted portion according to one embodiment of the present invention. FIG. 7 is a cross-sectional view schematically showing a coating yarn according to one embodiment of the present invention. Specific details for implementing the invention

[0022] An apparatus for manufacturing recycled PET coated yarn according to an embodiment of the present invention will be described below with reference to the attached drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

[0023] Furthermore, the terms described below are defined in consideration of their functions within the present invention, and these may vary depending on the intent or practice of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification.

[0025] FIG. 1 is a conceptual diagram schematically showing a recycled PET coated yarn manufacturing apparatus according to one embodiment of the present invention, FIG. 2 is a conceptual diagram schematically showing an extrusion molding section according to one embodiment of the present invention, FIG. 3 is a perspective view schematically showing a screw section according to one embodiment of the present invention, FIG. 4 is a perspective view schematically showing a screw section according to another embodiment of the present invention, FIG. 5 is an assembled perspective view schematically showing a twisting section according to one embodiment of the present invention, FIG. 6 is a perspective view schematically showing a twisting section according to one embodiment of the present invention, and FIG. 7 is a cross-sectional view schematically showing a coated yarn according to one embodiment of the present invention.

[0026] Referring to FIGS. 1 to 7, a recycled PET coated yarn manufacturing device according to one embodiment of the present invention may include a winding unit (100), a hopper unit (200), an extrusion molding unit (300), a cooling unit (400), a tensioning unit (500), and a winding unit (600).

[0027] The unwinding unit (100) may be formed in a roll shape. The unwinding unit (100) may unwind PET (10). PET (10) is polyethylene terephthalate, a polymer obtained by the polycondensation of ethylene glycol and terephthalic acid. The present invention can be environmentally friendly as PET (10) is recycled from existing products.

[0028] As the roll of the unwinding unit (100) rotates, the PET (10) wound on the roll is unwound and can be delivered to the extrusion molding unit (300).

[0029] The hopper section (200) can supply a coating material (20). An extrusion molding section (300) may be disposed below the hopper section (200). The coating material (20) can be supplied to the extrusion molding section (300) through the hopper section (200).

[0030] The coating material (20) may be composed of at least one of TPU (Thermoplastic Polyurethane) and TPO (Thermoplastic Polyolefin).

[0031] The extrusion molding section (300) is connected to the unwinding section (100) and the hopper section (200), and can extrude PET (10) unwound from the unwinding section (100) and the coating material (20) supplied from the hopper section (200) to form a coating yarn (30).

[0032] PET (10) supplied through the unwinding section (100) and coating material (20) supplied through the hopper section (200) are introduced into the extrusion molding section (300). In the extrusion molding section (300), PET (10) and coating material (20) can be extruded at a set temperature and pressure to form a coating yarn (30).

[0033] The extrusion molding section (300) may include an extrusion molding housing (310), a screw section (320), a blower section (330), a heater section (340), and a twist section (350).

[0034] The extrusion housing (310) can be connected to the unwinding section (100) and can be connected to the hopper section (200). The extrusion housing (310) can accommodate a screw section (320), a blower section (330), a heater section (340), and a twisting section (350) in its internal space.

[0035] The screw section (320) is rotatably mounted in the internal space of the extrusion molding housing (310), and can extrude the PET (10) unwound from the unwinding section (100) and the coating material (20) supplied from the hopper section (200) while rotating them to form a coating yarn (30).

[0036] Referring to FIG. 3, in one embodiment of the present invention, the screw portion (320) may include a screw body portion (321), a spiral portion (323), and a mixing portion (325). The screw body portion (321) may be rotatably mounted in the internal space of the extrusion molding housing (310) and may be formed in a cylindrical shape. The screw body portion (321) may be formed in the internal space of the extrusion molding housing (310) in the longitudinal direction of the extrusion molding housing (310) (left-right direction based on FIG. 2).

[0037] The spiral section (323) can be formed spirally on the outer surface of the screw body section (321). The spiral section (323) is formed spirally on the outer surface of the screw body section (321), so that the coating yarn (30) extruded by PET (10) and the coating material (20) can move along the spiral section (323).

[0038] The mixing section (325) is mounted on the screw body section (321) and can mix PET (10) and the coating material (20). The mixing section (325) may include a mixing body section (326) and a mixing protrusion section (327).

[0039] The mixing body portion (326) can be mounted on the outer surface of the screw body portion (321). The mixing protrusion portion (327) protrudes in the longitudinal direction of the screw body portion (321) and can be formed in multiple numbers along the circumferential direction of the mixing body portion (326). That is, the formation direction of the mixing protrusion portion (327) is the same as the longitudinal direction of the screw body portion (321), and the mixing protrusion portion (327) can be formed in multiple numbers along the circumferential direction of the mixing body portion (326).

[0040] Referring to FIG. 4, in another embodiment of the present invention, the screw portion (320) may include a screw body portion (321), a spiral portion (323), and a mixing portion (325a). The screw body portion (321) may be rotatably mounted in the internal space of the extrusion molding housing (310) and may be formed in a cylindrical shape. The screw body portion (321) may be formed in the internal space of the extrusion molding housing (310) in the longitudinal direction of the extrusion molding housing (310) (left-right direction based on FIG. 2).

[0041] The spiral section (323) can be formed spirally on the outer surface of the screw body section (321). The spiral section (323) is formed spirally on the outer surface of the screw body section (321), so that the coating yarn (30) extruded by PET (10) and the coating material (20) can move along the spiral section (323).

[0042] The mixing section (325a) is mounted on the screw body section (321) and can mix PET (10) and the coating material (20). The mixing section (325a) may include a mixing body section (326a) and a mixing protrusion section (327a).

[0043] The mixing body portion (326a) can be mounted on the outer surface of the screw body portion (321). The mixing protrusion portion (327a) protrudes diagonally from the screw body portion (321) and can be formed in multiple numbers along the circumferential direction of the mixing body portion (326a). That is, the formation direction of the mixing protrusion portion (327a) is diagonally from the screw body portion (321), and the mixing protrusion portion (327a) can be formed in multiple numbers along the circumferential direction of the mixing body portion (326a).

[0044] A plurality of blowers (330) are arranged along the longitudinal direction of the screw section (320) and can supply air into the extrusion molding housing (310). A plurality of blowers (330) are arranged along the longitudinal direction of the screw section (320) so that air can be evenly supplied to the coating yarn (30) being extruded.

[0045] The heater section (340) is arranged along the longitudinal direction of the screw section (320) and can provide heat to the coating yarn (30). The heat provided to the coating yarn (30) can be controlled by adjusting the heater section (340). The molding temperature of the coating yarn (30) can be controlled by the heater section (340). Multiple heater sections (340) may be arranged along the longitudinal direction of the screw section (320).

[0046] The twisting section (350) is connected to the end of the screw section (320) (right end in Fig. 2) and can form a fiber by twisting the coated yarn (30) moved by the screw section (320). The twisting section (350) may include a twisting housing (351), a twisting carrier section (353), a rotation section (355), and a drawing section (357).

[0047] The twist housing (351) can be mounted on the end of the screw part (320) (right end in Fig. 2). The twist housing (351) can accommodate a twist carrier part (353), a rotating part (355), and an extraction part (357) in its internal space.

[0048] The twist carrier section (353) is mounted on the twist housing (351) and connected to the end of the screw section (320) so that the coated yarn (30) can be fed in. The twist carrier section (353) can be formed in a truncated cone shape.

[0049] The rotating part (355) is rotatably mounted on the twist housing (351) and can be connected to the twist carrier part (353). As the rotating part (355) rotates, it can twist the coated yarn (30) to form a fiber.

[0050] The extraction part (357) is mounted on the rotating part (355), and the twisted coated yarn (30) can be extracted to the outside by the rotating part (355).

[0051] The cooling unit (400) can cool the coating yarn (30) extruded in the extrusion molding unit (300). The cooling unit (400) can cool the coating yarn (30) by adjusting the temperature considering the material of the coating yarn (30) being manufactured.

[0052] The tensioning section (500) can tension the coated yarn (30) cooled in the cooling section (400). The tensioning section (500) can tension the coated yarn (30) to adjust its thickness.

[0053] The winding unit (600) can wind the coated yarn (30) discharged from the tensioning unit (500). The winding unit (600) is formed in a roll shape and can wind and store the coated yarn (30).

[0054] Fibers and fabrics can be manufactured by weaving the coated yarn (30) formed by the recycled PET coated yarn manufacturing device configured as described above.

[0055] Referring to FIG. 7, in one embodiment of the present invention, a coating yarn (30) may have recycled PET (10) placed in the center and a coating material (20) placed on the outer surface of the PET (10).

[0056] In the present invention, the outer diameter (L) of the coating yarn (30) can be formed to be 0.3 to 0.6 mm, and the thickness (W) of the coating material (20) can be formed to be 0.05 to 0.12 mm.

[0057] The coating material (30) is made of a combination of recycled PET (10) and a coating material (20) made of TPO or TPU, and is environmentally friendly, ensures quality stability, and can improve wear resistance and durability.

[0058] According to the recycled PET coated yarn manufacturing apparatus of the present invention, coated yarn can be manufactured using recycled PET material, making it environmentally friendly.

[0059] In addition, according to the present invention, a product made from this coated yarn may have wear resistance, antibacterial, and antiviral functions.

[0061] Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the claims below. Explanation of the symbols

[0063] 10: PET 20: Coating material 30: Coated yarn 100: Unwinding section 200: Hopper Section 300: Extrusion Section 310: Extrusion housing 320: Screw part 321: Screw body 323: Spiral section 325, 325a: Mixing section 326, 326a: Mixing body section 327, 327a: Mixing protrusion 330: Blower part 340: Heater section 350: Twisted section 351: Twisted Housing 353: Twisted Carrier 355: Rotating part 357: Pulling part 400: Cooling section 500: Tension section 600: Winding unit

Claims

Claim 1 A discharge unit for discharging PET; a hopper unit for supplying a coating material; an extrusion unit connected to the discharge unit and the hopper unit, which extrudes the PET discharged from the discharge unit and the coating material supplied from the hopper unit to form a coating yarn; a cooling unit for cooling the coating yarn extruded in the extrusion unit; a tensioning unit for tensioning the coating yarn cooled in the cooling unit; and a winding unit for winding the coating yarn discharged from the tensioning unit, wherein the extrusion unit comprises: an extrusion housing connected to the discharge unit and the hopper unit; a screw unit rotatably mounted in the internal space of the extrusion housing, which extrudes the PET discharged from the discharge unit and the coating material supplied from the hopper unit while rotating to form the coating yarn; a plurality of blowers arranged along the longitudinal direction of the screw unit and supplying air into the extrusion housing; and a heater unit arranged along the longitudinal direction of the screw unit and providing heat to the coating yarn. A device for manufacturing recycled PET coated yarn, comprising a twisting section connected to the end of the screw section and twisting the coated yarn that is moved by the screw section, wherein a plurality of blowers are spaced apart along the longitudinal direction of the screw section and arranged on the upper side of the screw section, and a plurality of heaters are spaced apart along the longitudinal direction of the screw section and arranged on the lower side of the screw section, and wherein the blowers and heaters are arranged offset from each other with respect to the screw section. Claim 2 delete Claim 3 A device for manufacturing recycled PET coated yarn according to claim 1, wherein the screw portion comprises: a screw body portion formed in a cylindrical shape and rotatably mounted in the internal space of the extrusion molding housing; a spiral portion formed in a spiral shape on the outer surface of the screw body portion; and a mixing portion mounted on the screw body portion and configured to mix the PET and the coating material. Claim 4 A device for manufacturing recycled PET coated yarn according to claim 3, wherein the mixing part comprises: a mixing body part mounted on the outer surface of the screw body part; and a plurality of mixing protrusions that protrude in the longitudinal direction of the screw body part and are formed along the circumferential direction of the mixing body part. Claim 5 A device for manufacturing recycled PET coated yarn according to claim 3, wherein the mixing part comprises: a mixing body part mounted on the outer surface of the screw body part; and a plurality of mixing protrusions formed along the circumferential direction of the mixing body part, protruding diagonally from the screw body part. Claim 6 A device for manufacturing recycled PET coated yarn according to claim 1, wherein the twisting part comprises: a twisting housing mounted on the end of the screw part; a twisting carrier part mounted on the twisting housing and connected to the end of the screw part, into which the coated yarn is fed; a rotating part rotatably mounted on the twisting housing and connected to the twisting carrier part; and a drawing part mounted on the rotating part, into which the coated yarn twisted by the rotating part is drawn out. Claim 7 A device for manufacturing recycled PET coated yarn according to claim 1, characterized in that the coating material comprises at least one of TPU (Thermoplastic Polyurethane) and TPO (Thermoplastic Polyolefin).

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