CN111204066A - Production equipment and method for continuous fiber reinforced thermoplastic composite material plate - Google Patents

Production equipment and method for continuous fiber reinforced thermoplastic composite material plate Download PDF

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Publication number
CN111204066A
CN111204066A CN202010175244.9A CN202010175244A CN111204066A CN 111204066 A CN111204066 A CN 111204066A CN 202010175244 A CN202010175244 A CN 202010175244A CN 111204066 A CN111204066 A CN 111204066A
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China
Prior art keywords
pressurizing
heating
cooling
continuous fiber
thickness
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CN202010175244.9A
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Chinese (zh)
Inventor
雷飞
许浩骏
幺桂彬
王文臣
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Ningbo Furico New Materials Co Ltd
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Ningbo Furico New Materials Co Ltd
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Priority to CN202010175244.9A priority Critical patent/CN111204066A/en
Publication of CN111204066A publication Critical patent/CN111204066A/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
    • 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
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • 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
    • B29C70/545—Perforating, cutting or machining during or after moulding

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

Abstract

The invention provides production equipment and a method for a continuous fiber reinforced thermoplastic composite material plate, wherein the production equipment for the continuous fiber reinforced thermoplastic composite material plate comprises the following steps: the device comprises a conveying device, an unreeling device, a heating and pressurizing device, a cooling and pressurizing device, a heating and pressurizing thickness setting device, a cooling and pressurizing thickness setting device and a cutting device; the unwinding device and the cutting device are respectively arranged at two ends of the conveying device; and in the direction from the unreeling device to the cutting device, the heating and pressurizing device, the cooling and pressurizing device, the heating and pressurizing thickness-fixing device and the cooling and pressurizing thickness-fixing device are sequentially arranged in the conveying device. The production equipment integrates the impregnation and the expansion of the materials on one production line, reduces the difficulty of demoulding and transferring the impregnated materials, simplifies the production flow of the continuous fiber reinforced thermoplastic composite material plate, saves the production resources, reduces the energy consumption, and ensures that the produced plate has excellent mechanical properties and wide application prospect.

Description

Production equipment and method for continuous fiber reinforced thermoplastic composite material plate
Technical Field
The invention relates to the technical field of composite material forming, in particular to production equipment and a method for a continuous fiber reinforced thermoplastic composite material plate.
Background
At present, because the continuous fiber reinforced thermoplastic composite material plate adopts continuous fiber as a reinforced material, the continuous fiber reinforced thermoplastic composite material plate has excellent tensile strength and impact strength; and after the continuous fiber structure of the composite material plate is specially designed, the composite material plate can be subjected to bulking treatment, and the composite material plate obtained after bulking has the functions of sound absorption, heat insulation, shock absorption and energy absorption, and has a very wide application prospect.
In order to ensure that the produced continuous fiber reinforced thermoplastic composite material plate has good performance, impregnation and expansion are indispensable process steps in the production process of the continuous fiber reinforced thermoplastic composite material plate, but the currently adopted method is to separate impregnation and expansion by using two production lines, namely, the material after impregnation on the impregnation production line needs to be transferred to the expansion production line for expansion, so that the difficulty of demoulding and transferring the impregnated material is increased, the production flow becomes complicated, and the cost of production equipment and the production energy consumption are increased.
Disclosure of Invention
The invention solves the problems that: how to simplify the production flow of the continuous fiber reinforced thermoplastic composite material plate and reduce the difficulty of demoulding and transferring the impregnated material.
In order to solve the above problems, the present invention provides a production apparatus for a continuous fiber reinforced thermoplastic composite plate, comprising: the device comprises a conveying device, an unreeling device, a heating and pressurizing device, a cooling and pressurizing device, a heating and pressurizing thickness setting device, a cooling and pressurizing thickness setting device and a cutting device; the unreeling device and the cutting device are respectively arranged at two ends of the conveying device; and in the direction from the unreeling device to the cutting device, the heating and pressurizing device, the cooling and pressurizing device, the heating and pressurizing thickness-fixing device and the cooling and pressurizing thickness-fixing device are sequentially arranged in the conveying device.
Therefore, after the production equipment of the continuous fiber reinforced thermoplastic composite material plate is started, a plurality of materials are unreeled by the unreeling device and then are laminated on the conveying device, and the plurality of materials are conveyed from the unreeling device to the cutting device under the traction of the conveying device; the material has higher toughness in the dipping process, the thickness of the material is increased and the density of the material is reduced in the puffing process, and the difficulty of demoulding of the dipped material is reduced by curing the material between the dipping process and the puffing process so as to facilitate demoulding of the material; furthermore, continuous fiber reinforced thermoplastic composite material plates with different densities can be obtained by changing the expansion process conditions; therefore, the production equipment for the continuous fiber reinforced thermoplastic composite material plate can realize the production and manufacture of the high-impact-resistance continuous fiber reinforced thermoplastic composite material plate with adjustable density on one production line, and compared with the production with a plurality of production lines, the production equipment omits the step of transferring the impregnated material on the impregnation production line to the puffing production line at a longer distance, reduces the difficulty of demoulding and transferring the impregnated material, and simplifies the production flow.
Optionally, the conveying device includes a first conveying mechanism and a second conveying mechanism, and the first conveying mechanism and the second conveying mechanism are arranged adjacent to each other in a direction from the unwinding device to the cutting device; the heating and pressurizing device and the cooling and pressurizing device are both arranged in the first conveying mechanism, and the heating and pressurizing thickness setting device and the cooling and pressurizing thickness setting device are both arranged in the second conveying mechanism.
Optionally, the first conveying mechanism comprises a first supporting belt and a first synchronous belt which are oppositely arranged, and the second conveying mechanism comprises a second supporting belt and a second synchronous belt which are oppositely arranged; the first synchronous belt is located above the first supporting belt, the second synchronous belt is located above the second supporting belt, and the size of the first supporting belt in the direction from the unwinding device to the cutting device is larger than that of the first synchronous belt in the direction from the unwinding device to the cutting device.
Optionally, the first support belt, the first synchronous belt, the second support belt and the second synchronous belt are all ring-shaped; the heating and pressurizing device and the cooling and pressurizing device are arranged in the area surrounded by the first supporting belt and the area surrounded by the first synchronous belt; the heating and pressurizing thickness setting device and the cooling and pressurizing thickness setting device are arranged in the area defined by the second supporting belt and the area defined by the second synchronous belt.
Optionally, the pressure applied to the material by the cooling and pressurizing device is greater than the pressure applied to the material by the heating and pressurizing device, and the pressure applied to the material by the cooling and pressurizing thickness setting device is greater than the pressure applied to the material by the heating and pressurizing thickness setting device.
Optionally, the heating, pressurizing and thickness-fixing device includes a first pressing mechanism and a first distance adjusting mechanism, and the first distance adjusting mechanism is adapted to adjust a pressing distance of the first pressing mechanism; the cooling, pressurizing and thickness-fixing device comprises a second pressing mechanism and a second distance adjusting mechanism, and the second distance adjusting mechanism is suitable for adjusting the pressing distance of the second pressing mechanism; when the first pressing mechanism and the second pressing mechanism are pressed in place, the pressing distance of the first pressing mechanism is larger than the pressing distance of the second pressing mechanism.
Optionally, the heating, pressurizing and thickness-fixing device further comprises a blowing mechanism, wherein meshes are arranged on the second supporting belt and the second synchronous belt, and hot air blown by the blowing mechanism penetrates through the meshes to contact with the material.
Optionally, a side of the first support belt facing the first synchronous belt and a side of the first synchronous belt facing the first support belt form a first material passage, and a side of the second support belt facing the second synchronous belt and a side of the second synchronous belt facing the second support belt form a second material passage; the first material channel is communicated with the second material channel; and in the direction from the unreeling device to the cutting device, the sizes of the first material channel and the second material channel in the vertical direction are gradually reduced.
In order to solve the above problems, the present invention further provides a method for producing a continuous fiber reinforced thermoplastic composite material plate, wherein the apparatus for producing a continuous fiber reinforced thermoplastic composite material plate comprises:
winding a material on an unwinding device, unwinding the material through the unwinding device, and enabling the material to be stacked on a conveying device and conveyed from the unwinding device to a cutting device along with the conveying device;
the laminated materials are sequentially impregnated under the pressure heating treatment of a heating and pressurizing device and cured under the cooling and pressurizing treatment of a cooling and pressurizing device;
the solidified material is sequentially subjected to the heating and pressurizing thickness setting treatment of a heating and pressurizing thickness setting device to complete puffing, and is subjected to the cooling and pressurizing thickness setting treatment of a cooling and pressurizing thickness setting device to complete setting;
and the shaped material enters the cutting device, and the cutting device cuts and receives the shaped material.
The production method of the continuous fiber reinforced thermoplastic composite material plate has the same advantages as the production equipment of the continuous fiber reinforced thermoplastic composite material plate compared with the prior art, and the details are not repeated herein.
Optionally, the material comprises a surface layer reinforcing material, a core layer reinforcing material and a resin material; the surface layer reinforcing material is woven continuous fiber cloth, and the core layer reinforcing material is a continuous fiber felt which is randomly arranged in the fiber direction and is subjected to needle punching or spunlace; and the sequence of the material stacks on the conveying device is from top to bottom: the resin material, the surface layer reinforcing material, the resin material, the core layer reinforcing material, the resin material, the surface layer reinforcing material, and the resin material.
Drawings
FIG. 1 is a schematic structural view of a continuous fiber reinforced thermoplastic composite plate production apparatus according to an embodiment of the present invention;
fig. 2 is a flow chart of a method of producing a continuous fiber reinforced thermoplastic composite sheet in an embodiment of the present invention.
Description of reference numerals:
1-an unwinding device; 11-unreeling machine; 2-a transfer device; 21-a first transport mechanism; 211-a first support strip; 212-a first synchronization belt; 22-a second transport mechanism; 221-a second support band; 222-a second synchronous belt; 3-heating and pressurizing devices; 4-cooling and pressurizing device; 5-heating and pressurizing thickness-fixing device; 6-cooling and pressurizing the thickness-fixing device; 7-a cutting device; 8-a first material channel; 9-second material passage.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "high", "low", and the like indicate directions or positional relationships based on the orientations or positional relationships shown in the drawings, and a coordinate system XZ is provided herein, in which a forward direction of an X axis represents a right direction, a reverse direction of the X axis represents a left direction, a forward direction of a Z axis represents an upper direction, and a reverse direction of the Z axis represents a lower direction; as such, it is merely for convenience in describing the invention and to simplify the description, and it is not intended to indicate or imply that the apparatus so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be taken as limiting the invention.
Referring to fig. 1, an embodiment of the present invention provides a production apparatus for a continuous fiber reinforced thermoplastic composite plate, including: the device comprises a conveying device 2, an unreeling device 1, a heating and pressurizing device 3, a cooling and pressurizing device 4, a heating and pressurizing thickness setting device 5, a cooling and pressurizing thickness setting device 6 and a cutting device 7; the unreeling device 1 and the cutting device 7 are respectively arranged at two ends of the conveying device 2; the heating and pressurizing device 3, the cooling and pressurizing device 4, the heating and pressurizing thickness setting device 5 and the cooling and pressurizing thickness setting device 6 are sequentially arranged inside the conveying device 2 in the direction from the unreeling device 1 to the cutting device 7.
On production equipment of continuous fiber reinforced thermoplastic composite material plates, an unreeling device 1 is used for unreeling materials, and various materials are wound on the unreeling device; after starting the equipment, a plurality of materials are unreeled by the unreeling device 1 and then laminated on the conveying device 2, and the plurality of materials are conveyed from the unreeling device 1 to the cutting device 7 (namely from left to right in the figure 1 and in the positive direction of an X axis) under the traction of the conveying device 2, are shaped after being sequentially subjected to heating and pressurizing treatment by the heating and pressurizing device 3, cooling and pressurizing treatment by the cooling and pressurizing device 4, heating and pressurizing thickness-fixing treatment by the heating and pressurizing thickness-fixing device 5 and cooling and pressurizing thickness-fixing treatment by the cooling and pressurizing thickness-fixing device 6, are cut by the cutting device 7, and are finally received; specifically, the material is fully impregnated by pressurizing and heating treatment of a heating and pressurizing device 3, solidified by cooling and pressurizing treatment of a cooling and pressurizing device 4, expanded by heating and pressurizing thickness-fixing treatment of a heating and pressurizing thickness-fixing device 5, shaped by cooling and pressurizing thickness-fixing treatment of a cooling and pressurizing thickness-fixing device 6, and finally cut and collected; the material has higher toughness in the impregnation process so as to improve the tensile property, the impact resistance and other properties of the continuous fiber reinforced thermoplastic composite material plate, and the material has increased thickness and reduced density in the puffing process so as to enable the continuous fiber reinforced thermoplastic composite material plate to have smaller density so as to improve the heat insulation, shock absorption, impact resistance, energy absorption and other properties of the continuous fiber reinforced thermoplastic composite material plate; the solidification of the material between the dipping process and the puffing process is used as the transition process from the dipping to the puffing of the material, and the cooling and pressurizing treatment of the cooling and pressurizing device 4 ensures that the material in a molten state after the dipping is solidified due to the temperature reduction, thereby reducing the demoulding difficulty of the dipped material and facilitating the demoulding of the material; the solidified material can directly enter the puffing process after being demoulded, and the puffing process of the solidified material is relatively easy to control compared with the material in a molten state; specifically, compared with the method that the material is directly subjected to the puffing process after being soaked, the material is in a molten state after being soaked, so that the puffing control of the material in the puffing process is not facilitated, and the cooling and pressurizing device 4 is necessary for solidifying the material; furthermore, according to design requirements, continuous fiber reinforced thermoplastic composite material plates with different densities can be obtained by changing puffing process conditions (such as heating temperature); therefore, the production equipment for the continuous fiber reinforced thermoplastic composite material plate can realize the production of the high-impact-resistance continuous fiber reinforced thermoplastic composite material plate with adjustable density on one production line, and on the production line, the material is cooled and solidified after the impregnation process is finished and then enters the puffing process, compared with the production by arranging a plurality of production lines, the operation step of transferring the material which is impregnated on the impregnation production line from the impregnation production line to the puffing production line is not only saved, the production flow is simplified, but also the difficulty of demoulding and transferring the impregnated material is reduced, meanwhile, the production resources are greatly saved, the energy consumption is reduced, and the plate with lower cost can be produced.
Optionally, as shown in fig. 1, the conveying device 2 includes a first conveying mechanism 21 and a second conveying mechanism 22, and the first conveying mechanism 21 and the second conveying mechanism 22 are disposed adjacent to each other in a direction from the unwinding device 1 to the cutting device 7; the heating and pressurizing device 3 and the cooling and pressurizing device 4 are both arranged inside the first conveying mechanism 21, and the heating and pressurizing thickness-setting device 5 and the cooling and pressurizing thickness-setting device 6 are both arranged inside the second conveying mechanism 22.
In this embodiment, the conveying device 2 is composed of two sets of conveying mechanisms, the two sets of conveying mechanisms are respectively a first conveying mechanism 21 and a second conveying mechanism 22 which are adjacently arranged, one end of the first conveying mechanism 21 departing from the second conveying mechanism 22 is close to the unwinding device 1, and one end of the second conveying mechanism 22 departing from the first conveying mechanism 21 is close to the cutting device 7; in the direction from the unwinding device 1 to the cutting device 7 (i.e. from left to right in fig. 1, also in the positive direction of the X axis), the heating and pressurizing device 3 and the cooling and pressurizing device 4 are sequentially arranged inside the first conveying mechanism 21, and the heating and pressurizing and thickness-fixing device 5 and the cooling and pressurizing and thickness-fixing device 6 are sequentially arranged inside the second conveying mechanism 22; specifically, in the direction from left to right in fig. 1, the heating and pressurizing device 3, the cooling and pressurizing device 4, the heating and pressurizing thickness-setting device 5, and the cooling and pressurizing thickness-setting device 6 are arranged in sequence, the heating and pressurizing device 3 is arranged adjacent to the cooling and pressurizing device 4, and the heating and pressurizing thickness-setting device 5 is arranged adjacent to the cooling and pressurizing thickness-setting device 6; the material passes through the heating and pressurizing device 3 and the cooling and pressurizing device 4 in sequence under the traction of the first conveying mechanism 21, then passes through the heating and pressurizing thickness setting device 5 and the cooling and pressurizing thickness setting device 6 in sequence under the traction of the second conveying mechanism 22, and finally passes through the cutting device 7.
The conveying device 2 is divided into two sets of conveying mechanisms, so that the overall production difficulty, the assembly difficulty and the transportation difficulty of the conveying device 2 are reduced, and the maintenance and the repair of the conveying device 2 by maintainers are facilitated; and the arrangement of the first conveying mechanism 21 and the second conveying mechanism 22 improves the applicability of the conveying device 2, so that the first conveying mechanism 21 and the second conveying mechanism 22 can be used for other industrial production respectively.
Alternatively, as shown in fig. 1, the first conveying mechanism 21 includes a first supporting belt 211 and a first timing belt 212 which are oppositely disposed, and the second conveying mechanism 22 includes a second supporting belt 221 and a second timing belt 222 which are oppositely disposed; the first timing belt 212 is located above the first support belt 211 (i.e., the positive direction of the Z axis in fig. 1), the second timing belt 222 is located above the second support belt 221, and the dimension L of the first support belt 211 in the direction from the unwinding device 1 to the cutting device 71Is larger than the dimension L of the first synchronous belt 212 in the direction from the unwinding device 1 to the cutting device 72。
The distance L between the two ends of the first supporting belt 211 in the direction from the unwinding device 1 to the cutting device 7 (i.e. from left to right in fig. 1, and also in the positive direction of the X axis)1(i.e., the size of the first supporting belt 211 in the direction from the unwinding device 1 to the cutting device 7) is greater than the distance L between the two ends of the first timing belt 2122(the size of the first timing belt 212 in the direction from the unwinding device 1 to the cutting device 7); so set up to after unwinding device 1 blowing, the material falls on first supporting band 211, and the material gets into between first supporting band 211 and first synchronous belt 212 under the traction of first supporting band 211. A side of the first supporting band 211 facing the first timing band 212 and a side of the first timing band 212 facing the first supporting band 211 are formedA first material channel 8, a second material channel 9 is formed by one side of the second supporting belt 221 facing the second timing belt 222 and one side of the second timing belt 222 facing the second supporting belt 221; in the first material channel 8 and the second material channel 9, the material is attached to the support belt and the timing belt so as to facilitate the pressurization and heating or cooling of the material by each device provided in the conveyor 2.
Further, the first supporting belt 211, the first synchronous belt 212, the second supporting belt 221 and the second synchronous belt 222 may be a belt having a releasing and supporting function, such as a steel belt or a teflon belt, so as to facilitate long-term use of the conveyor 2 and release of the material from the conveyor 2.
Alternatively, as shown in fig. 1, the first support belt 211, the first synchronous belt 212, the second support belt 221, and the second synchronous belt 222 are all ring-shaped; the heating and pressurizing device 3 and the cooling and pressurizing device 4 are arranged in the area surrounded by the first supporting belt 211 and the area surrounded by the first synchronous belt 212; the heating and pressurizing thickness setting device 5 and the cooling and pressurizing thickness setting device 6 are arranged in the area enclosed by the second supporting belt 221 and the area enclosed by the second synchronous belt 222.
The heating and pressurizing device 3, the cooling and pressurizing device 4, the heating and pressurizing thickness-setting device 5 and the cooling and pressurizing thickness-setting device 6 are all arranged in the conveying device 2 in pairs up and down, specifically, the heating and pressurizing device 3 and the cooling and pressurizing device 4 are arranged in the area surrounded by the first supporting belt 211, the heating and pressurizing device 3 and the cooling and pressurizing device 4 are also arranged in the area surrounded by the first synchronous belt 212, and the heating and pressurizing device 3 and the cooling and pressurizing device 4 arranged in the area surrounded by the first supporting belt 211 are respectively arranged opposite to the heating and pressurizing device 3 and the cooling and pressurizing device 4 arranged in the area surrounded by the first synchronous belt 212 up and down; a heating and pressurizing thickness setting device 5 and a cooling and pressurizing thickness setting device 6 are arranged in the area enclosed by the second supporting belt 221, the heating and pressurizing thickness setting device 5 and the cooling and pressurizing thickness setting device 6 are also arranged in the area enclosed by the second synchronous belt 222, the heating and pressurizing thickness setting device 5 and the cooling and pressurizing thickness setting device 6 which are arranged in the area enclosed by the second supporting belt 221 are respectively arranged up and down oppositely to the heating and pressurizing thickness setting device 5 and the cooling and pressurizing thickness setting device 6 which are arranged in the area enclosed by the second synchronous belt 222; so set up to guarantee that heating pressure device 3 and heating pressure are decided thick device 5 and to the abundant heating and the pressurization of material, guarantee cooling pressure device 4 and cooling pressure and decide thick device 6 and to the abundant cooling and the pressurization of material.
Further, the first conveying mechanism 21 and the second conveying mechanism 22 further include a plurality of pulling rollers for pulling the support belt or the timing belt to move, and axes of the plurality of pulling rollers are parallel to each other; in the first conveying mechanism 21, a first supporting belt 211 and a first synchronous belt 212 are arranged around the drawing roll, the heating and pressurizing device 3 and the cooling and pressurizing device 4; in the second conveyance mechanism 22, a second support belt 221 and a second timing belt 222 are provided around the pulling roller, the heating and pressurizing thickness-setting device 5, and the cooling and pressurizing thickness-setting device 6.
Optionally, the pressure applied to the material by the cooling and pressurizing device 4 is greater than the pressure applied to the material by the heating and pressurizing device 3, and the pressure applied to the material by the cooling and pressurizing thickness setting device 6 is greater than the pressure applied to the material by the heating and pressurizing thickness setting device 5.
Generally, when the continuous fiber reinforced thermoplastic composite material plate is produced, the value range of the pressure applied to the material by the heating and pressurizing device 3 is 1-20MPa, the value range of the pressure applied to the material by the cooling and pressurizing device 4 is 0.02-20MPa, the value range of the pressure applied to the material by the heating and pressurizing thickness-fixing device 5 is 0.02-3MPa, and the value range of the pressure applied to the material by the cooling and pressurizing thickness-fixing device 6 is 0.02-20 MPa; on the basis, the pressure applied to the material by the cooling and pressurizing device 4 is greater than the pressure applied to the material by the heating and pressurizing device 3, so that the material is cooled under higher pressure when passing through the cooling and pressurizing device 4, the temperature of the material is reduced, the molten material subjected to heating and pressurizing treatment by the heating and pressurizing device 3 is solidified, and demolding and transferring of the material are facilitated. The pressure applied to the material by the cooling and pressurizing thickness setting device 6 is greater than the pressure applied to the material by the heating and pressurizing thickness setting device 5, so that the thickness of the material is set.
Alternatively, the pressure applied to the material by the heating and pressurizing device 3 is gradually increased in the direction from the unwinding device 1 to the cutting device 7.
When the material just got into the heating and pressurizing area (the region between a pair of heating and pressurizing device 3 promptly), heating and pressurizing device 3 was less to the pressure of material, and along with the material deepened the heating and pressurizing area gradually, the pressure that the material receives increases gradually, specifically, in unwinding device 1 to cutting device 7's direction, the pressure that heating and pressurizing device 3 applyed for the material increases gradually to be convenient for preliminary stereotype to the material. Further, the heating temperature of the heating and pressurizing zone (i.e., the temperature at which the heating and pressurizing are provided to the material) is in the range of room temperature to 400 ℃, for example, 270 ℃; when the heating temperature of the heating and pressurizing area is higher than 400 ℃, because the production conditions are met at 400 ℃ and below, the resource waste is easily caused, and when the heating temperature of the heating and pressurizing area is lower than the room temperature, the resin in the material can not be melted obviously, and the production requirement can not be met.
Optionally, the heating, pressing and thickness-fixing device 5 includes a first pressing mechanism and a first distance adjusting mechanism, and the first distance adjusting mechanism is adapted to adjust a pressing distance of the first pressing mechanism; the cooling, pressurizing and thickness-fixing device 6 comprises a second pressing mechanism and a second distance adjusting mechanism, and the second distance adjusting mechanism is suitable for adjusting the pressing distance of the second pressing mechanism; when the first pressing mechanism and the second pressing mechanism are pressed in place, the pressing distance of the first pressing mechanism is larger than that of the second pressing mechanism.
When the continuous fiber reinforced thermoplastic composite material plate is produced, the first pressing mechanisms are used for providing pressure to the material, the first spacing adjusting mechanisms are suitable for adjusting the pressing spacing of the first pressing mechanisms, specifically, the first pressing mechanisms are also arranged in pairs up and down as the heating and pressing thickness-fixing devices 5 are arranged in pairs up and down, and the two first pressing mechanisms arranged up and down act on the second synchronous belt 222 and the second supporting belt 221 respectively to press the material; the press fit interval of the first press fit mechanisms is the distance between two vertically arranged first press fit mechanisms, the value range of the press fit interval is 0.5mm-200mm, the press fit interval of the first press fit mechanisms is adjusted through the first interval adjusting mechanisms, so that the pressure applied to the materials by the first press fit mechanisms is adjusted, and the thickness of the materials is fixed (namely the thickness of the materials is fixed to a fixed value). Similar to the first pressing mechanism and the first spacing adjustment mechanism, the second spacing adjustment mechanism is adapted to adjust the pressing spacing of the second pressing mechanism, and the second pressing mechanisms are also arranged in pairs up and down, and the two second pressing mechanisms arranged up and down act on the second synchronous belt 222 and the second supporting belt 221 respectively to apply pressure to the material; the press fit interval of the second press fit mechanism is the distance between two second press fit mechanisms which are arranged up and down, the value range is also 0.5mm-200mm, the press fit interval of the second press fit mechanism is adjusted through the second interval adjusting mechanism, so that the pressure applied to the material by the second press fit mechanism is adjusted, and the thickness of the material is fixed.
When production equipment for producing the continuous fiber reinforced thermoplastic composite material plate is used, when the first pressing mechanism and the second pressing mechanism are pressed in place, the pressing distance of the first pressing mechanism is larger than that of the second pressing mechanism; the pressing in-place of the first pressing mechanism (the second pressing mechanism) refers to that the pressing distance of the first pressing mechanism (the second pressing mechanism) is adjusted to a fixed value meeting production requirements under the action of the first distance adjusting mechanism (the second distance adjusting mechanism) so that the thickness of the material reaches a set thickness value under the pressing action of the first pressing mechanism (the second pressing mechanism); so, through when first pressing mechanism and the equal pressfitting of second pressing mechanism put in place, set up the pressfitting interval of first pressing mechanism into being greater than the pressfitting interval of second pressing mechanism, so that the pressure that cooling pressurization setting thickness device 6 applied for the material is greater than the pressure that heating pressurization setting thickness device 5 applied for the material, further compress tightly the material, so that cooling pressurization setting thickness device 6 carries out the setting thickness, the design to the material, thereby make the material finally become inside tight continuous fibers reinforcing thermoplasticity combined material panel.
Optionally, the heating, pressurizing and thickness-fixing device 5 further comprises an air blowing mechanism, wherein meshes are arranged on the second supporting belt 221 and the second synchronous belt 222, and hot air blown by the air blowing mechanism penetrates through the meshes to contact with the material.
The second supporting belt 221 and the second synchronous belt 222 are provided with mesh holes so that hot air blown by the blowing mechanism can contact with the material through the mesh holes; the heating and pressurizing thickness-fixing area (namely the area between the pair of heating and pressurizing thickness-fixing devices 5) is designed into a semi-closed drying tunnel, and in the heating and pressurizing thickness-fixing area, hot air is convected vertically and horizontally in the drying tunnel, so that the material begins to expand after being heated, the thickness is increased, and the capabilities of sound absorption, heat insulation, shock absorption and energy absorption of the continuous fiber reinforced thermoplastic composite material plate are improved.
Furthermore, the cooling and pressurizing thickening area (i.e. the area between the pair of cooling and pressurizing thickening devices 6) can also be designed as a semi-closed drying tunnel, and the cooling and pressurizing thickening area can be communicated with the outside through the drying tunnel and cools the materials by using the outside atmosphere, so that the resources are saved. Further, the cooling and pressurizing thickness-fixing device 6 can also comprise a blower mechanism, and the blower mechanism is arranged to accelerate the contact between the outside air and the material so as to increase the cooling speed of the material.
Alternatively, as shown in fig. 1, a side of the first support belt 211 facing the first synchronous belt 212 and a side of the first synchronous belt 212 facing the first support belt 211 form a first material passage 8, a side of the second support belt 221 facing the second synchronous belt 222 and a side of the second synchronous belt 222 facing the second support belt 221 form a second material passage 9; the first material channel 8 is communicated with the second material channel 9; and in the direction from the unwinding device 1 to the cutting device 7, the sizes of the first material channel 8 and the second material channel 9 in the vertical direction (i.e. the up-down direction in fig. 1, and also the Z-axis direction) are gradually reduced.
For the continuous fiber reinforced thermoplastic composite material plate production apparatus, the first material passage 8 is a region between a side of the first support belt 211 facing the first timing belt 212 and a side of the first timing belt 212 facing the first support belt 211, and the second material passage 9 is a region between a side of the second support belt 221 facing the second timing belt 222 and a side of the second timing belt 222 facing the second support belt 221; the first material channel 8 and the second material channel 9 are used for passing through the material, and specifically, the material passes through the first material channel 8 and the second material channel 9 from left to right (i.e., along the positive direction of the X axis in fig. 1) in sequence under the traction of the conveyor 2. In the direction from the unwinding device 1 to the cutting device 7 (i.e. from left to right, also in the positive direction of the X axis in fig. 1), the sizes of the first material channel 8 and the second material channel 9 in the vertical direction are gradually reduced, namely, the size of one end of the first material channel 8 close to the unreeling device 1 in the vertical direction is larger than that of one end close to the cutting device 7 in the vertical direction, the size of one end of the second material channel 9 close to the unreeling device 1 in the vertical direction is larger than that of one end close to the cutting device 7 in the vertical direction, wherein, the dimension of the first material channel 8 in the vertical direction is the distance between the side of the first support belt 211 facing the first synchronous belt 212 and the side of the first synchronous belt 212 facing the first support belt 211, and the dimension of the second material channel 9 in the vertical direction is the distance between the side of the second support belt 221 facing the second synchronous belt 222 and the side of the second synchronous belt 222 facing the second support belt 221; thus, the first material channel 8 and the second material channel 9 are both wedge-shaped, one end of the first material channel 8, which is close to the unreeling device 1, is a wedge-shaped large end, one end of the first material channel 8, which is close to the cutting device 7, is a wedge-shaped small end, and the distance between two opposite edges of the wedge shape is gradually reduced in the direction from the wedge-shaped large end to the small end (i.e., the positive direction of the X axis in fig. 1), and the wedge-shaped second material channel 9 is similar to the wedge-shaped first material channel 8, so that the details are not repeated; the wedge-shaped first material channel 8 corresponds to the situation that the pressure on the material on the first material channel 8 is gradually increased, the wedge-shaped second material channel 9 corresponds to the situation that the pressure on the material on the second material channel 9 is gradually increased, and specifically, in the direction from the large end to the small end of the wedge shape, the pressure on the material in the first material channel 8 and the second material channel 9 is gradually increased, so that the continuous fiber reinforced thermoplastic composite material plate is produced and molded.
Optionally, in the production equipment of the continuous fiber reinforced thermoplastic composite material plate, the pressurizing modes of the heating and pressurizing device 3, the cooling and pressurizing device 4, the heating and pressurizing thickness setting device 5 and the cooling and pressurizing thickness setting device 6 on the material may be multi-roller pressurizing, rigid plate pressurizing, air pressure pressurizing and the like, and the pressurizing modes of the devices in the production equipment of the continuous fiber reinforced thermoplastic composite material plate are not particularly limited in the embodiment of the invention; for the purpose of describing the operation of the present production apparatus, the present embodiment is exemplified by a multi-roll press, on the basis that the first conveying mechanism 21 and the second conveying mechanism 22 further comprise a plurality of drawing rolls, the heating and pressurizing device 3, the cooling and pressurizing device 4, the heating and pressurizing thickness-fixing device 5 and the cooling and pressurizing thickness-fixing device 6 all comprise a plurality of pressing rolls, the axes of the pressing rolls are parallel to the axes of the drawing rolls, the pressing roll in the area surrounded by the first supporting belt 211 is in contact with the belt body of the first supporting belt 211 close to the first material passage 8, the pressing roll in the area surrounded by the first synchronous belt 212 is in contact with the belt body of the first synchronous belt 212 close to the first material passage 8, the pressing roll in the area surrounded by the second supporting belt 221 is in contact with the belt body of the second supporting belt 221 close to the second material passage 9, and the pressing roll in the area surrounded by the second synchronous belt 222 is in contact with the belt body of the second synchronous belt 222 close to the second material passage 9; after the equipment is started, the pressing rollers and the traction rollers rotate in the same direction to drive the supporting belts (comprising the first supporting belts 211 and the second supporting belts 221) and the synchronous belts (comprising the first synchronous belts 212 and the second synchronous belts 222) arranged around the traction rollers to rotate together, so that the materials are pulled to move, and when the materials are conveyed to a position between the pressing rollers arranged oppositely up and down, the pressing rollers apply pressure to the materials through pressing the supporting belts and the synchronous belts; and the size of the first material channel 8 in the vertical direction (i.e. the up-down direction in fig. 1, also the Z-axis direction) can be adjusted by adjusting the distance between the up-down oppositely arranged press rollers, so as to adjust the pressure applied by the press rollers to the material, specifically, the pressure applied by the press rollers to the material can be increased by decreasing the distance between the up-down oppositely arranged press rollers, and the pressure applied by the press rollers to the material can be decreased by increasing the distance between the up-down oppositely arranged press rollers.
Optionally, the heating and pressurizing devices 3 and 5 have a range of heating temperatures of the material between room temperature and 400 ℃, and the cooling and pressurizing devices 4 and 6 have a range of cooling temperatures of the material between-20 ℃ and room temperature.
Optionally, different from the above-mentioned range of the cooling temperature of the material by the cooling and pressurizing device 4 being between-20 ℃ and room temperature, in this embodiment, the cooling temperature of the material by the cooling and pressurizing device 4 may be set to be tens of degrees lower than the heating temperature of the heating and pressurizing device 3, and it is only necessary that the material can be demolded and transferred after passing through the cooling and pressurizing device 4; because the material still will heat through heating and pressurizing setting thickness device 5 after cooling pressure device 4, so the range of cooling here is as little as possible, only need satisfy the material can the drawing of patterns and shift to avoid the energy extravagant.
Alternatively, on the basis that the heating and pressing thickness setting device 5 heats the material by using hot air, the cooling and pressing devices 4 and 6 cool the material and the heating and pressing device 3 heats the material by contact, which is not particularly limited in the present embodiment, and for convenience of description, the heating may be hot oil transferred to the supporting belt and the synchronous belt by a roller of a pressing roller disposed in the heating and pressing device 3, so as to be transferred to the material; or heating by infrared, heating rod radiation, electromagnetism and other modes; the cooling can be that cold water is transferred to the supporting belt and the synchronous belt through the rollers of the pressure rollers arranged in the cooling and pressurizing device 4 and the cooling and pressurizing thickness-setting device 6, and then transferred to the materials.
Optionally, as shown in fig. 1, the unwinding device 1 includes a plurality of linked unwinding machines 11, and the unwinding speeds of the plurality of unwinding machines 11 are all the same.
Because the continuous fiber reinforced thermoplastic composite material plate in the implementation is made of various materials, the unreeling device 1 comprises a plurality of linked unreeling machines 11, and one material is wound on each unreeling machine 11; the unwinding speed of each unwinding machine 11 is the same, so that after a plurality of materials are stacked on the conveying device 2, the materials are conveyed from the unwinding device 1 to the cutting device 7 along the positive direction of the X axis in fig. 1 along the conveying device 2.
With reference to fig. 1 and fig. 2, an embodiment of the present invention further provides a method for producing a continuous fiber reinforced thermoplastic composite plate, where the production apparatus for producing a continuous fiber reinforced thermoplastic composite plate includes the following steps:
s100, winding a material on an unwinding device 1, unwinding the material through the unwinding device 1, so that the material is laminated on a conveying device 2 and conveyed along with the conveying device 2 from the unwinding device 1 to a cutting device 7;
s200, sequentially impregnating the laminated materials under the pressurization and heating treatment of a heating and pressurizing device 3 and solidifying the laminated materials under the cooling and pressurizing treatment of a cooling and pressurizing device 4;
s300, sequentially performing puffing on the solidified material under the heating and pressurizing thickness setting treatment of a heating and pressurizing thickness setting device 5 and performing shaping under the cooling and pressurizing thickness setting treatment of a cooling and pressurizing thickness setting device 6;
and S400, enabling the shaped material to enter a cutting device 7, and cutting and collecting the shaped material by the cutting device 7.
In the production method of the continuous fiber reinforced thermoplastic composite material plate provided by the embodiment, the continuous fiber reinforced thermoplastic composite material plate is produced by using the production equipment of the continuous fiber reinforced thermoplastic composite material plate; winding materials on the unwinding device 1, specifically, the materials include multiple materials, correspondingly, the unwinding device 1 includes multiple linked unwinding machines 11 with the same unwinding speed, and winding the materials (i.e., the materials) on the unwinding machines 11 respectively; unreeling (discharging) through the unreeling device 1, wherein materials wound on each unreeling machine 11 are flatly laid and laminated on the conveying device 2 and conveyed along with the conveying device 2 from the unreeling device 1 to the cutting device 7, and in the conveying movement process, the laminated materials are subjected to pressurizing and heating treatment through the heating and pressurizing device 3, so that the materials are fully impregnated; then cooling and pressurizing by a cooling and pressurizing device 4 to reduce the temperature of the impregnated material, and finally solidifying the impregnated material so as to facilitate demoulding and transferring of the material; then, the material is subjected to heating and pressurizing thickness setting treatment by a heating and pressurizing thickness setting device 5, so that the heated and expanded material is preliminarily subjected to thickness setting in the pressurizing process; finally, the material is subjected to cooling, pressurizing and thickness-fixing treatment by a cooling, pressurizing and thickness-fixing device 6, so that the material is shaped and fixed in thickness and becomes a continuous fiber reinforced thermoplastic composite material plate; finally, the shape required by production is changed by cutting through a cutting device 7, and the material is collected and packaged.
For the production method of the continuous fiber reinforced thermoplastic composite material plate, the impregnation of the material can enable the material to have higher toughness so as to improve the tensile resistance, the shock resistance and other capabilities of the continuous fiber reinforced thermoplastic composite material plate, the expansion of the material enables the thickness of the material to be increased and the density to be reduced, so that the continuous fiber reinforced thermoplastic composite material plate has smaller density so as to improve the heat insulation, shock absorption, shock resistance, energy absorption and other capabilities of the continuous fiber reinforced thermoplastic composite material plate; the solidification of the material between the dipping process and the puffing process is used as the transition process from the dipping to the puffing of the material, and the cooling and pressurizing treatment of the cooling and pressurizing device 4 ensures that the material in a molten state after the dipping is solidified due to the temperature reduction, thereby reducing the demoulding difficulty of the dipped material and facilitating the demoulding of the material; the solidified material can directly enter the puffing process after being demoulded, and the puffing process of the solidified material is relatively easy to control compared with the material in a molten state; specifically, compared with the method that the material is directly subjected to the puffing process after being soaked, the material is in a molten state after being soaked, so that the puffing control of the material in the puffing process is not facilitated, and the cooling and pressurizing device 4 is necessary for solidifying the material; furthermore, continuous fiber reinforced thermoplastic composite material plates with different densities can be obtained by changing the expansion process conditions (such as heating temperature) according to the design requirements; therefore, the production method of the continuous fiber reinforced thermoplastic composite material plate enables production equipment of the continuous fiber reinforced thermoplastic composite material plate to produce and manufacture the high-impact-resistance continuous fiber reinforced thermoplastic composite material plate with adjustable density on one production line, and the material is solidified after completing the impregnation process and then directly enters the puffing process on the production line.
Further, on the basis that the conveyor 2 includes the first conveying mechanism 21 and the second conveying mechanism 22, the step S200 is performed in the first material passage 8 in the first conveying mechanism 21, and the step S300 is performed in the second material passage 9 in the second conveying mechanism 22.
Further, the thickness of the material entering the first material passage 8 gradually decreases during the conveying process, and the thickness of the material entering the second material passage 9 gradually decreases after increasing, wherein the thickness of the material is the size of the material in the vertical direction (i.e. the up-down direction in fig. 1, which is also the Z-axis direction).
In the production of the continuous fiber reinforced thermoplastic composite material plate, in the proceeding process of step S200, the wedge-shaped first material passage 8 cooperates with the heating and pressurizing device 3 and the cooling and pressurizing device 4 to pressurize the material in the first material passage 8, so that the size of the material in the first material passage 8 in the Z-axis direction is gradually reduced in the left-to-right direction in fig. 1, that is, the thickness of the material is gradually reduced; in the proceeding process of step S300, the material in the second material passage 9 is first expanded by the heating, pressurizing and thickness-fixing treatment of the heating, pressurizing and thickness-fixing device 5, so that the thickness of the material is increased, that is, the material in the second material passage 9 is first expanded to increase the dimension of the material in the Z-axis direction, and then the dimension of the material in the Z-axis direction is gradually reduced under the cooperation of the wedge-shaped second material passage 9, the heating, pressurizing and thickness-fixing device 5 and the cooling, pressurizing and thickness-fixing device 6, so that the dimension of the material in the second material passage 9 in the vertical direction is first increased and then gradually reduced; thus, the plate meeting the requirement is produced.
Optionally, the pressure applied to the material by the cooling and pressurizing device 4 is greater than the pressure applied to the material by the heating and pressurizing device 3, and the pressure applied to the material by the cooling and pressurizing thickness setting device 6 is greater than the pressure applied to the material by the heating and pressurizing thickness setting device 5.
In the production process of the continuous fiber reinforced thermoplastic composite material plate, the value range of the pressure applied to the material by the heating and pressurizing device 3 is 1-20MPa, the value range of the pressure applied to the material by the cooling and pressurizing device 4 is 0.02-20MPa, the value range of the pressure applied to the material by the heating and pressurizing thickness-fixing device 5 is 0.02-3MPa, and the value range of the pressure applied to the material by the cooling and pressurizing thickness-fixing device 6 is 0.02-20 MPa; on the basis, the pressure applied to the material by the cooling and pressurizing device 4 is greater than the pressure applied to the material by the heating and pressurizing device 3, so that the material is cooled under higher pressure when passing through the cooling and pressurizing device 4, the temperature of the material is reduced, the molten material subjected to heating and pressurizing treatment by the heating and pressurizing device 3 is solidified, and demolding and transferring of the material are facilitated. The pressure applied to the material by the cooling and pressurizing thickness setting device 6 is greater than the pressure applied to the material by the heating and pressurizing thickness setting device 5, so that the thickness of the material is set.
Alternatively, the pressure applied to the material by the heating and pressurizing device 3 is gradually increased in the direction from the unwinding device 1 to the cutting device 7.
In the production process of continuous fiber reinforced thermoplastic composite material plates, when a material just enters a heating and pressurizing area (namely an area between a pair of heating and pressurizing devices 3), the pressure of the heating and pressurizing devices 3 on the material is smaller, the pressure borne by the material is gradually increased along with the gradual deep penetration of the material into the heating and pressurizing area, and particularly, the pressure applied to the material by the heating and pressurizing devices 3 is gradually increased in the direction from an unreeling device 1 to a cutting device 7 so as to be convenient for the initial shaping of the material.
Optionally, the material comprises a surface layer reinforcing material, a core layer reinforcing material and a resin material; the surface layer reinforcing material is woven continuous fiber cloth, and the core layer reinforcing material is a continuous fiber felt which is randomly arranged in the fiber direction and is subjected to needle punching or spunlace; and the sequence of material stacking on the conveyor 2 is, from top to bottom: resin material, surface layer reinforcing material, resin material, core layer reinforcing material, resin material, surface layer reinforcing material and resin material.
In this embodiment, the material on the unwinding device 1 includes a surface layer reinforcing material, a core layer reinforcing material, and a resin material, and is used for producing and manufacturing a continuous fiber reinforced thermoplastic composite material plate.
Wherein the surface layer reinforcing material is woven continuous fiber cloth; the material of the continuous fiber cloth comprises one of glass fiber, carbon fiber, basalt fiber and aramid fiber. The fiber cloth is a composite material made of carbon fibers, has extremely high strength, and is ultra-light, high-temperature resistant and high-pressure resistant; therefore, the woven continuous fiber cloth is used as one of raw materials for manufacturing the continuous fiber reinforced thermoplastic composite material plate, so that the performance of the continuous fiber reinforced thermoplastic composite material plate is greatly improved; furthermore, when the plate is impacted, the surface layer material is mainly under the stretching action, so that the woven continuous fiber cloth is used as the surface layer reinforcing material, and the impact resistance of the continuous fiber reinforced thermoplastic composite plate is greatly improved.
The core layer reinforcing material is a needled or spunlaced continuous fiber felt with randomly arranged fiber directions, and the material of the continuous fiber felt comprises one of glass fiber, carbon fiber, basalt fiber and aramid fiber. When the plate is impacted, the surface layer material is mainly under the stretching action, and the core layer material is under the shearing action, so that the continuous fiber felt which has excellent performances of high temperature resistance, oxidation resistance, radiation resistance, heat insulation and sound insulation, high shearing strength, suitability for use in various environments and the like is used as the core layer reinforcing material of the continuous fiber reinforced thermoplastic composite plate, and the impact resistance of the continuous fiber reinforced thermoplastic composite plate is further improved; the needled or spunlaced continuous fiber felt can be expanded under certain conditions, so that the rigidity and the impact resistance are kept high enough, the density is low, a porous structure is formed in the continuous fiber felt, the continuous fiber felt has the functions of sound absorption, heat insulation, shock absorption and energy absorption, and the shock absorption and energy absorption capabilities of the continuous fiber reinforced thermoplastic composite material plate are further improved.
The material of the resin material comprises one or more of polyethylene, polypropylene, polyethylene terephthalate, polybutylene terephthalate, polycarbonate, polyamide, polyphenylene sulfide, polyetherimide, polyformaldehyde and polyether ether ketone. The resin material is arranged on the two sides of the surface layer reinforced material and the two sides of the core layer reinforced material, when the laminated material passes through the heating and pressurizing device 3, the resin material is melted and is immersed between fibers of the surface layer reinforced material and the core layer reinforced material, the shock resistance of the continuous fiber reinforced thermoplastic composite material plate is improved, the melted resin plays a role of an adhesive, the connection stability between the surface layer reinforced material and the core layer reinforced material is improved, and therefore the stability of the continuous fiber reinforced thermoplastic composite material plate is enhanced.
When the continuous fiber reinforced thermoplastic composite material plate is produced, the core layer reinforced material is arranged between two or more layers of surface layer reinforced materials, resin materials are arranged on the upper side and the lower side of the surface layer reinforced material and the upper side and the lower side of the core layer reinforced material, the surface layer reinforced material is wrapped in the middle by the resin materials, so that the resin materials can be conveniently permeated into the surface layer reinforced material after being melted, and similarly, the core layer reinforced material is wrapped in the middle by the resin materials, so that the resin materials can be conveniently permeated into the core layer reinforced material after being melted; when the continuous fiber reinforced thermoplastic composite material plate is produced by using the production method of the continuous fiber reinforced thermoplastic composite material plate, in the impregnation process, the resin in the laminated material is melted after being heated and permeates into the reinforced fiber bundles of the surface layer reinforced material and the core layer reinforced material under the action of pressure, so that the melted resin is wrapped on each fiber bundle, and then the resin is cooled to be solidified under the action of pressure, namely the structure of the reinforced fiber is locked; the subsequent puffing process is as follows: heating the cooled and solidified material to melt the resin again, wherein the resin loses the restraint on the reinforcing fiber bundles, and because the continuous fiber felt used as the core layer reinforcing material is generally a felt which is manufactured by a non-woven method and has a three-dimensional structure and is mixed with reinforcing fibers and resin fibers, the reinforcing fiber bundles of the core layer reinforcing material begin to stretch and expand due to heating, the density is reduced, and the finally produced continuous fiber reinforced thermoplastic composite plate has the performances of sound absorption, heat insulation, shock absorption and the like; furthermore, the heating in the bulking process is realized by convection of hot air, so that the stretching and expanding speed of the reinforced fiber bundles of the core layer reinforced material is further accelerated under the action of the hot air; the surface layer reinforced materials positioned at the upper side and the lower side of the core layer reinforced material are not influenced by the bulking process because of the woven continuous fiber cloth, so that the finally produced continuous fiber reinforced thermoplastic composite material plate has excellent impact resistance and tensile resistance; after the swelling process, the material is solidified and fixed in thickness under the action of the cooling and pressurizing thickness fixing device 6, and the resin material is solidified again to lock square fiber bundles in the surface layer reinforced material and the core layer reinforced material, so that the continuous fiber reinforced thermoplastic composite material plate with stable performance is finally obtained; through the design of the structure of the continuous fiber reinforced thermoplastic composite material plate and the impregnation and swelling method in the production method of the continuous fiber reinforced thermoplastic composite material plate, the continuous fiber reinforced thermoplastic composite material plate which has excellent impact resistance, tensile resistance, sound absorption, heat insulation, shock absorption and other properties and has adjustable density (for example, through changing the thickness of the final fixed thickness of the plate) is finally obtained; by designing the structure of the continuous fiber reinforced thermoplastic composite material plate and combining the production method of the continuous fiber reinforced thermoplastic composite material plate, the produced continuous fiber reinforced thermoplastic composite material plate has excellent mechanical properties, thereby having wide application prospect.
To further understand the structural design of the continuous fiber reinforced thermoplastic composite material plate, the sequence of material stacking on the conveyor 2 in the vertical direction (i.e. up and down in fig. 1, also in the Z-axis direction) is as follows: resin material, surface layer reinforcing material, resin material, core layer reinforcing material, resin material, surface layer reinforcing material and resin material; the core layer reinforcing material is a needled or spunlaced continuous fiber felt with randomly arranged fiber directions, the felt is generally manufactured by a non-woven method and has a three-dimensional structure mixed with reinforcing fibers and resin fibers, and the surface layer reinforcing material is woven continuous fiber cloth; combining with a production method of a continuous fiber reinforced thermoplastic composite material plate, after the laminated material is subjected to heating and pressurizing treatment by a heating and pressurizing device 3, resin is melted and gradually permeates into fiber bundles of fiber cloth and a core layer fiber felt to finish impregnation; when the impregnated material passes through the pressurizing and cooling device, the temperature of the material is reduced to be lower than the melting point of the resin under the condition of keeping higher pressure, so that the molten material subjected to heating and pressurizing treatment by the heating and pressurizing device 3 is solidified, and demolding and transferring are facilitated; when the cured material passes through the heating and pressurizing thickness setting device 5, the material is heated to be above the melting point of the resin again, and hot air is blown to the material by a blowing mechanism in the heating and pressurizing thickness setting device 5 so that the hot air is convected vertically and horizontally in a drying tunnel type heating and pressurizing thickness setting area, so that the impregnated continuous fiber felt in the core layer of the material begins to expand, the thickness is increased, and the continuous fiber cloth on the surface layer is not influenced; the expanded material is preliminarily fixed in thickness under the pressure applied by the heating and pressing thickness-fixing device 5, and when the material after preliminary thickness fixing is cooled, pressed and fixed in thickness, the material is clamped by a second supporting belt 221 and a second synchronous belt 222 which are provided with meshes and a plurality of groups of pressing rollers, so that the material is shaped and fixed in thickness while being cooled, and a continuous fiber reinforced thermoplastic composite plate is formed; and finally cutting and receiving materials.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A production facility of continuous fiber reinforced thermoplastic composite panel characterized by comprising:
the device comprises a conveying device (2), an unreeling device (1), a heating and pressurizing device (3), a cooling and pressurizing device (4), a heating and pressurizing thickness setting device (5), a cooling and pressurizing thickness setting device (6) and a cutting device (7); the unreeling device (1) and the cutting device (7) are respectively arranged at two ends of the conveying device (2); the direction from the unreeling device (1) to the cutting device (7) is sequentially from the heating and pressurizing device (3), the cooling and pressurizing device (4), the heating and pressurizing thickness setting device (5) and the cooling and pressurizing thickness setting device (6) arranged inside the conveying device (2).
2. The production apparatus for continuous fiber reinforced thermoplastic composite material sheets as claimed in claim 1, wherein the conveying device (2) comprises a first conveying mechanism (21) and a second conveying mechanism (22), the first conveying mechanism (21) and the second conveying mechanism (22) are arranged adjacent to each other in the direction from the unwinding device (1) to the cutting device (7); the heating and pressurizing device (3) and the cooling and pressurizing device (4) are arranged inside the first conveying mechanism (21), and the heating and pressurizing thickness-fixing device (5) and the cooling and pressurizing thickness-fixing device (6) are arranged inside the second conveying mechanism (22).
3. The apparatus for producing a continuous fiber reinforced thermoplastic composite material panel according to claim 2, wherein the first conveying mechanism (21) includes a first support belt (211) and a first timing belt (212) which are oppositely disposed, and the second conveying mechanism (22) includes a second support belt (221) and a second timing belt (222) which are oppositely disposed; the first synchronous belt (212) is located above the first supporting belt (211), the second synchronous belt (222) is located above the second supporting belt (221), and the size of the first supporting belt (211) in the direction from the unwinding device (1) to the cutting device (7) is larger than the size of the first synchronous belt (212) in the direction from the unwinding device (1) to the cutting device (7).
4. The apparatus for producing a continuous fiber reinforced thermoplastic composite panel according to claim 3, wherein the first support belt (211), the first timing belt (212), the second support belt (221), and the second timing belt (222) are ring-shaped; the heating and pressurizing device (3) and the cooling and pressurizing device (4) are arranged in the area enclosed by the first supporting belt (211) and the area enclosed by the first synchronous belt (212); the heating and pressurizing thickness setting device (5) and the cooling and pressurizing thickness setting device (6) are arranged in the area surrounded by the second supporting belt (221) and the area surrounded by the second synchronous belt (222).
5. The apparatus for producing a continuous fiber reinforced thermoplastic composite plate according to any one of claims 1 to 4, wherein the pressure applied to the material by the cooling and pressurizing means (4) is greater than the pressure applied to the material by the heating and pressurizing means (3), and the pressure applied to the material by the cooling and pressurizing thickness-setting means (6) is greater than the pressure applied to the material by the heating and pressurizing thickness-setting means (5).
6. The production equipment of continuous fiber reinforced thermoplastic composite material plate according to claim 3 or 4, characterized in that the heating, pressing and thickness-fixing device (5) comprises a first pressing mechanism and a first spacing adjustment mechanism, wherein the first spacing adjustment mechanism is suitable for adjusting the pressing spacing of the first pressing mechanism; the cooling, pressurizing and thickness-fixing device (6) comprises a second pressing mechanism and a second distance adjusting mechanism, and the second distance adjusting mechanism is suitable for adjusting the pressing distance of the second pressing mechanism; when the first pressing mechanism and the second pressing mechanism are pressed in place, the pressing distance of the first pressing mechanism is larger than the pressing distance of the second pressing mechanism.
7. The apparatus for manufacturing a continuous fiber reinforced thermoplastic composite material plate according to claim 6, wherein the heating and pressing thickness-fixing device (5) further comprises an air blowing mechanism, wherein the second supporting belt (221) and the second timing belt (222) are provided with meshes, and hot air blown by the air blowing mechanism is in contact with the material through the meshes.
8. The apparatus for producing continuous fiber reinforced thermoplastic composite panels as claimed in claim 3 or 4, wherein a side of the first support belt (211) facing the first timing belt (212) and a side of the first timing belt (212) facing the first support belt (211) form a first material passage (8), a side of the second support belt (221) facing the second timing belt (222) and a side of the second timing belt (222) facing the second support belt (221) form a second material passage (9); the first material channel (8) is communicated with the second material channel (9); and in the direction from the unreeling device (1) to the cutting device (7), the sizes of the first material channel (8) and the second material channel (9) in the vertical direction are gradually reduced.
9. A method for producing a continuous fiber reinforced thermoplastic composite sheet material using the production apparatus for a continuous fiber reinforced thermoplastic composite sheet material according to any one of claims 1 to 8, comprising:
winding a material on an unwinding device (1), unwinding through the unwinding device (1), and enabling the material to be stacked on a conveying device (2) and conveyed along with the conveying device (2) from the unwinding device (1) to a cutting device (7);
the laminated materials are impregnated under the pressure heating treatment of a heating and pressure device (3) and cured under the cooling and pressure treatment of a cooling and pressure device (4) in sequence;
the solidified material is sequentially subjected to the heating and pressurizing thickness setting treatment of a heating and pressurizing thickness setting device (5) to complete puffing, and is subjected to the cooling and pressurizing thickness setting treatment of a cooling and pressurizing thickness setting device (6) to complete shaping;
the shaped materials enter the cutting device (7), and the cutting device (7) cuts and receives the shaped materials.
10. The method of producing a continuous fiber reinforced thermoplastic composite sheet material as claimed in claim 9, wherein the material comprises a surface layer reinforcing material, a core layer reinforcing material, a resin material; the surface layer reinforcing material is woven continuous fiber cloth, and the core layer reinforcing material is a continuous fiber felt which is randomly arranged in the fiber direction and is subjected to needle punching or spunlace; and the sequence of the material stacks on the conveying device (2) is from top to bottom: the resin material, the surface layer reinforcing material, the resin material, the core layer reinforcing material, the resin material, the surface layer reinforcing material, and the resin material.
CN202010175244.9A 2020-03-13 2020-03-13 Production equipment and method for continuous fiber reinforced thermoplastic composite material plate Pending CN111204066A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113829474A (en) * 2021-10-13 2021-12-24 辽宁科大中驰镁建材科技有限公司 Method for preparing magnesium fireproof plate from low-content light-burned magnesia powder
CN116749549A (en) * 2023-06-22 2023-09-15 江苏亨博复合材料有限公司 Continuous production line and production process of thermoplastic composite material profile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113829474A (en) * 2021-10-13 2021-12-24 辽宁科大中驰镁建材科技有限公司 Method for preparing magnesium fireproof plate from low-content light-burned magnesia powder
CN116749549A (en) * 2023-06-22 2023-09-15 江苏亨博复合材料有限公司 Continuous production line and production process of thermoplastic composite material profile

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