KR102039766B1 - Manufacturing apparatus for Long Fiber-reinforced Thermoplastics sheet and manufacturing method thereof - Google Patents

Manufacturing apparatus for Long Fiber-reinforced Thermoplastics sheet and manufacturing method thereof Download PDF

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Publication number
KR102039766B1
KR102039766B1 KR1020150177887A KR20150177887A KR102039766B1 KR 102039766 B1 KR102039766 B1 KR 102039766B1 KR 1020150177887 A KR1020150177887 A KR 1020150177887A KR 20150177887 A KR20150177887 A KR 20150177887A KR 102039766 B1 KR102039766 B1 KR 102039766B1
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South Korea
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composite material
cooling
unit
extruded
composite
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KR1020150177887A
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Korean (ko)
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KR20170070416A (en
Inventor
황재봉
이정근
정두용
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(주)엘지하우시스
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Priority to KR1020150177887A priority Critical patent/KR102039766B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/9145—Endless cooling belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The present invention is easy to transfer to the processing company by manufacturing a high-strength thermoplastic composite used for structural parts of the vehicle in the form of a sheet using a cooling roll and a caterpillar (Caterpiller), dimensions suitable for the product to be manufactured It relates to a manufacturing apparatus and a manufacturing method of a high-strength thermoplastic composite sheet to be easily cut and used.
The apparatus for manufacturing a high-strength thermoplastic composite sheet according to the present invention for realizing this is extruded through a extruder 111 to form a composite material 1 by extruding the kneaded molten thermoplastic resin and the glass fiber introduced in the form of continuous fibers. Unit 110; Cooling unit 120 for cooling by passing between the plurality of cooling rollers 121 of the composite material (1) that is extruded through the extrusion unit 110; And a crimping unit 130 which passes the composite material 1 cooled to a predetermined temperature through the cooling unit 120 between the caterpillars 131 and compresses the film to a predetermined thickness.

Description

Manufacturing apparatus for high strength thermoplastic composite sheet and manufacturing method

The present invention relates to a manufacturing apparatus and a manufacturing method of a high-strength thermoplastic composite sheet, and more particularly, by manufacturing a high-strength thermoplastic composite used in structural parts of the vehicle in the form of a sheet, it is easy to transfer to the processing company, the product to be manufactured The present invention relates to a manufacturing apparatus and a manufacturing method of a high-strength thermoplastic composite sheet that can be easily cut and used to fit the dimensions.

In general, thermoplastic composites have excellent light weight and rigidity and are used for structural parts of vehicles such as bumpers and seat frames. Thermoplastic composites include glass mat thermoplastic (GMT), long fiber-reinforced thermoplastic (LFT), and the like.

The thermoplastic composite material has been previously filed in the Republic of Korea Patent Publication No. 10-2009-0099215 (name of the invention: manufacturing process of high-strength thermoplastic composite reinforced with continuous fibers).

However, the conventional thermoplastic composite as described above is put into the press as it is extruded after extrusion to form a product, it is difficult to transport when the distance between the extrusion company and the press processing company. That is, as the extruded thermoplastic composite hardens in an uneven state over time, there is a difficulty in the process of stacking and transporting it.

In addition, the thermoplastic composite is difficult to cut to fit the size of the product to be manufactured. Therefore, there is a problem such as wasting the material as you need to cut more than the size actually required to manufacture the product.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and transported to a processing company by manufacturing a high-strength thermoplastic composite used for structural parts of a vehicle in a sheet shape using a cooling roll and a caterpillar. It is an object of the present invention to provide an apparatus and a method for manufacturing a high strength thermoplastic composite sheet which can be easily cut and used with dimensions suitable for the product to be manufactured.

High-strength thermoplastic composite sheet manufacturing apparatus of the present invention for achieving the above object, an extrusion unit for molding a composite material by extruding a mixture of a glass fiber and a molten thermoplastic resin through an extruder; A cooling unit configured to cool the composite material that is extruded through the extrusion unit and passes between the plurality of cooling rollers; And a compression unit configured to pass the composite material cooled to a predetermined temperature through the cooling unit between the caterpillars and to be compressed to a predetermined thickness.

In addition, the high-strength thermoplastic composite sheet manufacturing method of the present invention, the first step of molding the composite material by extruding a mixture of the glass fiber and the molten thermoplastic resin through an extruder; A second step of sequentially cooling the extruded composite material through a plurality of cooling rollers; And a third step of passing the composite material cooled to a predetermined temperature while passing through the cooling roller between the caterpillars and compressing the composite material to a predetermined thickness.

The present invention according to the configuration as described above, the high-strength thermoplastic composite is gradually cooled by using a cooling roll (Cooling roll) and Caterpillar (Caterpiller), and finally manufactured in a sheet shape, easy to transfer to the processing company And, there is an advantage that can be easily cut and used to the dimensions that fit the product to be manufactured.

1 is a schematic configuration diagram of a composite sheet manufacturing apparatus according to the present invention,
Figure 2 is a layout arrangement of the cooling roller of the composite sheet manufacturing apparatus according to the present invention,
3 is a drawing substitute photograph showing the appearance of a caterpillar according to the present invention,
4 is a drawing substitute photograph showing a composite sheet according to the present invention,
5 is a flow chart showing a manufacturing process of the composite sheet according to the present invention,
6 is an embodiment of a product manufactured using the composite sheet according to the present invention.

Hereinafter, the configuration and operation of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Here, it should be noted that in adding reference numerals to the elements of each drawing, the same elements are denoted by the same reference numerals as much as possible even if they are shown on different drawings.

1 is a schematic configuration diagram of a composite sheet manufacturing apparatus according to the present invention, Figure 2 is a layout arrangement of the cooling roller of the composite sheet manufacturing apparatus according to the present invention.

Referring to FIG. 1, the apparatus 100 for manufacturing a high strength thermoplastic composite sheet according to an exemplary embodiment of the present invention includes an extrusion part 110, a cooling part 120, and a crimping part 130.

Referring to the configuration of the present invention in detail as follows.

The extrusion unit 110 injects the thermoplastic resin into the extruder 111, melts and kneaded. In this case, other additives may be added together with the thermoplastic resin.

In addition, by inserting the continuous fibers (3) present in a continuous state having a direction in the state that the fibers are not cut together to extrude the composite (strand) (1). That is, as the molten thermoplastic resin composition is extruded in an impregnated state between the continuous fibers supplied together, the composite material can be molded into a sheet shape.

In this case, the continuous fiber may be any one of glass fiber, carbon fiber, aramid fiber or natural fiber.

In addition, the thermoplastic resin is preferably PP (polypropylene). Of course, the present invention is not limited thereto, and any one of polyacetate (PA), poly yethylene terephthalate (PET), polyamide (PA), and acryllonitril-butadiene-styrene (ABS) may be used.

In addition, the extrusion speed of the composite material 1 molded through the extrusion unit 110 is 6 ~ 10m / min, the temperature of the composite material 1 is extruded 200 ± 10 ℃, the thickness is molded to 5 ~ 10 mm desirable.

The cooling unit 120 passes the composite material 1 of high temperature (about 200 ° C.) extruded through the extrusion unit 110 between the plurality of cooling rollers 121 to cool to a predetermined temperature (about 120 ° C.). That is, during the initial extrusion, the composite material 1 is molded into a swollen state having a thickness of about 5 to 7 mm. The composite material 1 is gradually cooled through the cooling unit 120 and formed into the composite material 1 having a desired thickness (4 to 5 mm). It becomes possible.

Referring to FIG. 2, the cooling roller 121 is disposed up and down so that a pair of rollers rotated by receiving power maintain a predetermined gap. The cooling roller 121 is a plurality (approximately eight) spaced apart along the extrusion direction of the composite material (1) to convey the composite material (1) in one direction and gradually lower the temperature.

In addition, the cooling roller 121 may be arranged in a zigzag form up and down along the conveying direction, or the cooling roller 121 may be arranged in different heights intermittently. That is, by bringing the surface of the composite material 1 and the cooling roller 121 to be extruded and transported, it is possible to improve the cooling efficiency.

In this case, the cooling roller 121 may be provided with a temperature control unit (not shown) to maintain a temperature of 9 ~ 15 ℃. Through such a temperature control unit, it is possible to prevent the temperature of the cooling roller 121 which is in continuous contact with the high temperature composite material 1 to rise gradually.

The cooling unit 120 having the structure as described above has a temperature of about 200 ° C. for the first extruded composite 1, while the composite material 1 sequentially passes through the cooling rollers 121 through 1 to 8. Can be lowered by ℃. That is, the composite material 1 which has passed through the cooling unit 120 has a temperature lowered from 200 ° C. to approximately 120 ° C.

Referring to FIGS. 1 and 3 again, the crimping unit 130 serves to compress the composite material 1 cooled to a predetermined temperature through the cooling unit 120 between the caterpillar 131 and to have a predetermined thickness. . Specifically, the caterpillar 131 may be a continuous press device provided with a double belt up and down. The crimping unit 130 may compress the composite material 1 that is primarily cooled through the cooling unit 120 to a desired thickness.

In addition, the inside of the caterpillar 131 may be further provided with a cold air injection unit (not shown) for continuously spraying the cold air toward the composite material 1 to be passed. Accordingly, by cooling the composite material 1 through the cooling unit 120 again, it can be finally lowered to a temperature of 60 ~ 70 ℃.

The composite material 1 that has passed through the caterpillar 131 may be manufactured in a sheet shape having a flat surface having a predetermined thickness and width, and the prepared caterpillar 131 is cut to a predetermined length through a subsequent process and stored in a stack. Can be.

As shown in FIG. 4, the composite material 1 molded into a sheet shape and laminated is not only easy to be transferred to a processing company, but also easily cut and cut back to a size suitable for a product to be manufactured.

Then, a high-strength thermoplastic composite sheet manufacturing process according to the present invention having the above configuration will be described with reference to FIG.

First, the composite material 1 is molded by extruding the kneaded molten thermoplastic resin and the glass fibers introduced in the form of continuous fibers together through an extruder 111. At this time, the temperature of the extruded composite (1) is about 200 ℃.

The extruded composite material 1 is passed through the cooling unit 120 consisting of a plurality of cooling rollers 121 in order to cool. In this case, the cooling roller 121 is in a state of continuously maintaining 9 to 15 ° C. The composite material 1 which has passed through the cooling unit 120 is lowered to approximately 120 ° C.

The composite material 1 cooled to a predetermined temperature while passing through the cooling roller 121 is passed through the caterpillar 131 of the crimping unit 130 to be compressed to a predetermined thickness. In addition, the wind spray unit provided in the crimping unit 130 continuously cools the cold wind toward the composite material 1 to be transported again. The temperature of the composite material 1 passed through the cooling unit 120 is finally lowered to 60 ~ 70 ℃.

Through this process, a sheet of the composite material 1 of a flat surface can be obtained, and the prepared caterpillar 131 is cut into a predetermined length through a subsequent process. In addition, after stacking a plurality of such composite (1) sheet, it can be easily transferred to the processing company of the product.

On the other hand, after transferring the sheet-shaped composite material (1) to the processing company and put the sheet of the composite material (1) in the oven and undergo a reheating process about 10 minutes at a temperature of 200 ~ 250 ℃, the composite material (1) first It swells again in an extruded state. The swollen composite 1 is put into a press and molded into a desired product.

Referring to FIG. 6, the composite material 1 may be used for structural parts of a vehicle such as a bumper, a seat frame, etc. because of its excellent light weight and rigidity.

The present invention as described above is to slowly cool the high-strength thermoplastic composite using a cooling roll (Cooling roll) and Caterpillar (Caterpiller), and finally to produce a sheet-like, easy to transfer to the processing company, manufacturing target There is an advantage that can be easily cut and used to the dimensions that fit the product.

The present invention has been illustrated and described with reference to certain preferred embodiments, but the present invention is not limited to the above embodiments and various changes and modifications are possible without departing from the technical spirit of the present invention.

100: composite sheet manufacturing apparatus 110: extrusion part
111 extruder 120 cooling part
121: cooling roller 130: crimping portion
131: Caterpillar

Claims (8)

An extrusion unit 110 for molding the composite material by extruding the glass fiber introduced in the form of a kneaded molten thermoplastic resin and a continuous fiber through an extruder 111;
Cooling unit 120 for cooling by passing between the plurality of cooling rollers 121 of the composite material (1) that is extruded through the extrusion unit 110; And
It includes; a compression unit 130 for pressing the composite material 1 cooled to a predetermined temperature through the cooling unit 120 between the caterpillar 131 and compressed to a predetermined thickness;
The composite material 1 extruded through the extrusion unit 110 has a thickness of 5 ~ 10mm,
The composite material 1 cooled to a predetermined temperature through the cooling unit 120 has a thickness of 4 to 5 mm, and the cooling roller 121 further includes a temperature control unit for maintaining a temperature of 9 to 15 ° C. And, a pair of rollers that are rotated by receiving power are arranged up and down to maintain a predetermined gap, a plurality of spaced apart is arranged along the extrusion direction of the composite material 1, the vertical zigzag or intermittently the height is arranged differently It is to improve the cooling efficiency by the surface contact of the composite material (1) and the cooling roller 121 to be extruded,
The caterpillar 131 is a cold air injection unit for injecting cold air toward the composite material (1) to pass through; Further comprising, the composite material (1) passing through the caterpillar 131 is a high-strength thermoplastic composite sheet manufacturing apparatus for a vehicle structural component that is finally 60 ~ 70 ℃.
delete delete delete delete A first step of extruding the mixture of the glass fiber and the molten thermoplastic resin through an extruder 111 to form a composite 1 having a thickness of 5 to 10 mm;
A second step of sequentially cooling the extruded composite material 1 through a plurality of cooling rollers 121; And
A third step of passing through the cooling roller 121 and passing the composite material 1 having a thickness of 4 to 5 mm cooled to a predetermined temperature between the caterpillars 131 and compressing it to a predetermined thickness; Including,
In the second step, the cooling roller 121 further comprises maintaining a temperature of 9 ~ 15 ℃, a pair of rollers that are rotated by receiving power is disposed up and down to maintain a predetermined gap, the composite material A plurality of spaced apart are arranged along the extrusion direction of (1), the vertical zigzag or intermittently the height is different from each other to improve the cooling efficiency by the surface contact of the composite material (1) and the cooling roller 121 to be extruded and conveyed,
The third step further includes continuously injecting cold air toward the conveyed composite material 1, the composite material 1 passing through the caterpillar 131 is finally 60 ~ 70 ℃ vehicle structural parts High strength thermoplastic composite sheet manufacturing method. delete delete
KR1020150177887A 2015-12-14 2015-12-14 Manufacturing apparatus for Long Fiber-reinforced Thermoplastics sheet and manufacturing method thereof KR102039766B1 (en)

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KR1020150177887A KR102039766B1 (en) 2015-12-14 2015-12-14 Manufacturing apparatus for Long Fiber-reinforced Thermoplastics sheet and manufacturing method thereof

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KR102179761B1 (en) * 2018-03-05 2020-11-17 동우 화인켐 주식회사 Cooling system
CN109203405A (en) * 2018-08-17 2019-01-15 山东泰氏新材料科技有限责任公司 A kind of method that the online reinforced polypropylene of long fibre is directly molded
KR102162644B1 (en) * 2018-11-08 2020-10-08 주식회사 남전산업 Apparatus for manufacturing of self-reinforced composite and composite by using the same
CN111267373A (en) * 2018-12-05 2020-06-12 湖南易净环保科技有限公司 Method for producing damp-proof insulating pipe for live working by squeezing, drawing and winding

Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2001277336A (en) * 2000-03-03 2001-10-09 Trespa Internatl Bv Method for continuously manufacturing preform mat, preform mat and use thereof

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Publication number Priority date Publication date Assignee Title
JPH07251437A (en) * 1994-03-15 1995-10-03 Ube Ind Ltd Method and device for manufacture of long fiber reinforced thermoplastic composite material
KR20060117677A (en) * 2005-05-13 2006-11-17 한화종합화학 주식회사 Thermoplastic compound sheet having high rigidity and the method for making the same
KR20090099215A (en) * 2008-03-17 2009-09-22 (주)엘지하우시스 Process of preparing continuous fiber reinforced thermoplastic composite with high strength

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001277336A (en) * 2000-03-03 2001-10-09 Trespa Internatl Bv Method for continuously manufacturing preform mat, preform mat and use thereof

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