CN210233630U - Infrared heating carbon fiber thermoplastic polymer preimpregnation device - Google Patents
Infrared heating carbon fiber thermoplastic polymer preimpregnation device Download PDFInfo
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- CN210233630U CN210233630U CN201920918076.0U CN201920918076U CN210233630U CN 210233630 U CN210233630 U CN 210233630U CN 201920918076 U CN201920918076 U CN 201920918076U CN 210233630 U CN210233630 U CN 210233630U
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Abstract
The utility model provides an infrared heating carbon fiber thermoplastic polymer preimpregnation device, include: the furnace body, the furnace body comprises upper cover and lower box, still be equipped with thermal-insulated intermediate layer in the furnace body inner wall, box middle part is equipped with medium and long wave infrared radiator under, the rear portion of box is equipped with two compression roller modules under, the compression roller module comprises last roller and lower roll, the compression roller module is fixed in the furnace body through two risers, still be equipped with screw device on riser upper portion, the both ends and the screw device of going up the roller are connected, the middle part at the riser is installed at the both ends of lower roll, short wave infrared radiator is still installed to the top of going up roller at every, still be equipped with the heat insulating board between two compression roller modules, open at the middle part. The beneficial effects are as follows: set up two sets of compression roller modules at box rear portion down, increased the diffusion of resin, reduced the problem of the reduction of prepreg tape width that leads to because of resin cooling shrinkage for the infiltration effect of prepreg tape is better.
Description
Technical Field
The utility model relates to a carbon fiber prepreg tape production facility especially indicates an infrared heating carbon fiber thermoplastic polymer preimpregnation device.
Background
Carbon fiber reinforced composites can be divided into two broad categories, thermoset composites and thermoplastic composites. The thermosetting carbon fiber composite material has the advantages of high specific strength, high specific modulus, good designability and the like, and is widely applied to the fields of aviation, aerospace, automobile manufacturing and the like. But the thermosetting carbon fiber composite material has long molding period, poor toughness and is not recyclable. The thermoplastic carbon fiber composite material not only has excellent comprehensive mechanical property, but also has good forming property and recyclability. Therefore, the preparation of the thermoplastic carbon fiber prepreg tape serving as a semi-finished product of a thermoplastic carbon fiber composite material product has important scientific significance and application value.
In the production process of the thermoplastic carbon fiber prepreg tape, a hot-pressing roller is often used for rolling the prepreg tape so as to achieve the purposes of fully diffusing and permeating molten resin among carbon fiber tows and discharging redundant resin to form the prepreg tape with uniform thickness, good infiltration and certain resin content. Therefore, heating and pressurizing the carbon fibers and the resin are indispensable links for preparing the thermoplastic carbon fiber prepreg tape.
At present, manufacturers capable of supplying continuous carbon fiber reinforced thermoplastic prepreg tapes in batches at home and abroad mainly adopt hot melting dipping as a production process. The hot-melt impregnation technology is a preparation technology for impregnating carbon fibers after heating and melting thermoplastic resin, and carbon fiber tows pass through a molten resin glue tank, are rolled by a hot-pressing roller, and are cooled and shaped to form a carbon fiber prepreg tape.
Commonly used hot press rollers include heat transfer oil heating rollers, electric heating rollers, electromagnetic heating rollers, and the like.
The heating principle of the heat-conducting oil heating roller is to recycle heat-conducting oil and heat the surface of the pressing roller to a certain temperature under the action of heat conduction. The surface temperature of the heat conduction oil heating roller is uniformly distributed, but the heat conduction oil heating roller is generally only suitable for being used below 200 ℃, and the heat conduction oil is easy to leak, so that environmental pollution and potential safety hazards of personnel exist;
the heating principle of the electric heating roller is that a resistance wire or an electric heating rod in the roller body transfers heat to enable the roller surface to rise to a certain temperature. The electric heating has high heating speed and can heat to a higher temperature, but the surface temperature of the compression roller is influenced by the distribution of the heating rods or the resistance wires, so the uniformity is poor, and meanwhile, the heat utilization efficiency is low by utilizing heat conduction and heat transfer;
the electromagnetic heating roller is a development trend of the existing heating roller, and the principle is that alternating high-frequency high-voltage current is utilized to pass through a coil to generate an alternating magnetic field which changes at a high speed, so that alternating current is generated inside a metal pressing roller, and the pressing roller is heated by utilizing the current heat effect. The electromagnetic heating mode has the advantages of fast temperature rise, uniform temperature distribution, no problems of environmental pollution and the like, but the electromagnetic heating roller has a complex structure and higher equipment cost and maintenance cost.
In addition to hot melt impregnation techniques, powder impregnation is also one of the common techniques for producing thermoplastic carbon fiber prepreg tapes. In the powder production process, a heating furnace is generally adopted to heat and melt resin, a certain amount of thermoplastic resin particles are adsorbed on the surface of a carbon fiber tow, then the carbon fiber tow enters the heating furnace to be heated, so that the resin is completely melted, and then the carbon fiber tow is rolled by a compression roller to diffuse the resin, and finally the carbon fiber tow is cooled and shaped to form the carbon fiber prepreg tape.
Common heating furnaces include electric heating furnaces and infrared radiation heating furnaces.
The resistance wire is arranged in the electric heating furnace, the resistance wire is heated by using the heat effect of current, and the temperature in the furnace body is raised to a set temperature through the heat conduction effect. The electric heating furnace has simple structure, low equipment cost, relatively slow temperature rise speed, high energy consumption and low heat utilization rate.
The infrared radiation heating furnace heats the heated material by emitting infrared rays by using an infrared radiation heater in the furnace body. When the infrared wavelength range corresponds to the absorption wavelength of the heated material, the heated material absorbs infrared rays, which causes the resonance of molecules and atoms in the material, and generates strong vibration and rotation, thereby rapidly increasing the temperature of the heated material. The infrared heating has high heating rate, can realize the simultaneous heating inside and outside the heated material, and simultaneously has extremely high heat utilization rate because no heat transfer medium is needed. The infrared radiation heating furnace has higher equipment cost and larger electric loss.
The hot-pressing roller has a simple structure and a good hot-pressing effect, but a plurality of problems can exist when high-viscosity resin is used for impregnating carbon fibers. On one hand, the high-viscosity resin melt can generate larger shearing force when passing through the compression roller, and is very easy to damage fibers; on the other hand, when the melt viscosity is high, the resin is difficult to permeate into the carbon fiber tows under the rolling action of the hot-pressing roller, and a prepreg tape with good infiltration effect cannot be obtained.
The heating mode of the heating furnace can uniformly heat the resin, but for the thermoplastic material with a narrow processing temperature interval, such as nylon, the resin can be rapidly cooled and solidified after leaving the heating furnace area, so that the rolling effect of the compression roller is poor, and the carbon fiber prepreg tape with uniform thickness and good infiltration cannot be obtained.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem that exists among the prior art, provide an infrared heating carbon fiber thermoplastic polymer preimpregnation device.
The technical scheme of the utility model is realized like this: an infrared heating carbon fiber thermoplastic polymer pre-impregnation device, which comprises the following components: the furnace body, the furnace body comprises upper cover and lower box, still be equipped with thermal-insulated intermediate layer in the furnace body inner wall be equipped with medium and long wave infrared radiator in the middle part of the box down the rear portion of box is equipped with two compression roller modules down, the compression roller module comprises last roller and lower roll, the compression roller module is fixed through two risers in the furnace body riser upper portion still is equipped with screw device, go up the roller both ends with screw device connects, the both ends of lower roll are installed the middle part of riser, every go up the top of roller and still install short wave infrared radiator, two still be equipped with the heat insulating board between the compression roller module, open at the middle part of heat insulating board has the gap.
The screw device comprises a screw, a rotary table and a moving plate, a groove is formed in the upper portion of the vertical plate, the moving plate is installed in the groove, the lower portion of the screw is connected with the moving plate, and two ends of the upper roller are installed in the middle of the moving plate.
The middle-long wave infrared radiator is installed on the lower box body through a supporting rod, and two ends of the short wave infrared radiator are fixed in the upper cover.
The utility model has the advantages that: the device is provided with two groups of infrared radiators, has the characteristics of high heating efficiency and high temperature, and can adjust the power and the distance between the infrared radiators and resin according to the difference of the resin; set up two sets of compression roller modules at box rear portion down, increased the diffusion of resin, reduced the problem of the reduction of prepreg tape width that leads to because of resin cooling shrinkage for the infiltration effect of prepreg tape is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1-2, an infrared heating carbon fiber thermoplastic polymer pre-dipping device comprises: the furnace body 1, the furnace body 1 is made up of upper cover 3 and lower box 2, the upper cover 3 can be opened, facilitate changing the infrared radiator 10 of medium and long wave and short wave in the furnace body 1 infrared radiator 9, still there are heat insulating interlayers 16 in the inboard wall of furnace body 1, prevent the temperature of the external surface of furnace body 1 from being too high, the infrared radiator 10 of medium and long wave is installed on lower box 2 through the strut 11, can change the strut 11 into the hydraulic stem of the adjustable height too, in order to meet the heating requirement of unused resin, the infrared radiator 10 of medium and long wave is used for heating the resin particle on the lower box 2, the heating temperature that its production should be higher than the melting point of the resin, in order to facilitate the resin to melt fast, and its power can be adjusted;
short wave infrared radiator 9 at box 2 rear portion is located two compression roller modules 17 directly over down, short wave infrared radiator 9's both ends are fixed between 3 lateral walls of upper cover, when 3 lids of upper cover are on box 2 down, short wave infrared radiator 9 is located compression roller module 17 directly over, be used for heating compression roller module 17 and maintain this regional temperature, the heating temperature of its production is located between the vitrification temperature and the melting point of resin, make the resin still have mobility under this temperature, the compression roller of being convenient for rolls.
The medium-long wave infrared radiator 10 can also be fixed in the upper cover 3 like the short wave infrared radiator 9, and when the upper cover 3 is combined with the lower box body 2, the medium-long wave infrared radiator 10 is positioned above the lower box body.
The rear portion of box 2 is equipped with two compression roller modules 17 down, compression roller module 17 comprises last roller 12 and lower roll 13, every compression roller module 17 is fixed through two vertical risers 4, still be equipped with screw device on riser 4 upper portion, screw device includes lead screw 7, carousel 8, movable plate 5, upper portion at riser 4 is equipped with the fluting, movable plate 5 is installed in fluting 6, lead screw 7 lower part is connected with movable plate 5, the bearing at the both ends of going up roller 12 is installed in the middle part of movable plate 5, the middle part at riser 4 is installed through the bearing at the both ends of lower roll 13, can drive lead screw 7 through carousel 8 and rotate, make movable plate 5 reciprocate in fluting 6, come the distance between adjustment last roller 12 and the lower roll 13, still be equipped with heat insulating board 15 between two compression roller modules 17, open at the middle part of heat insulating board.
The first press roll module 17 is used for preventing the resin solution from diffusing and permeating into the fiber bundles and removing redundant resin, and the second press roll module 17 is used for further increasing the diffusion of the resin and reducing the width reduction of the prepreg tape caused by cooling shrinkage of the resin.
The two groups of compression roller modules 17 are made of high-temperature-resistant steel so as to reduce the deformation of the compression rollers under the high-temperature condition and ensure the uniformity of the thickness of the carbon fiber impregnated belt 14; the surface of the press roller is plated with chrome, so that the surface hardness of the press roller can be ensured, and the surface smoothness can be improved.
The lead screw 7 in the lead screw 7 device can also adopt a control mode of electric cylinder driving or combination of the electric cylinder driving and the control mode, a mode of manually adjusting the lead screw 7 is adopted when the carbon fiber soaking belt 14 with the thickness of more than 0.1mm is produced, and a mode of adjusting the lead screw 7 is adopted when the carbon fiber soaking belt 14 with the thickness of less than 0.1mm is produced.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. An infrared heating carbon fiber thermoplastic polymer pre-impregnation device, which comprises the following components: the furnace body, the furnace body comprises upper cover and lower box, its characterized in that: the furnace body inner wall is also provided with a heat insulation interlayer, the middle part of the lower box body is provided with a medium-long wave infrared radiator, the rear part of the lower box body is provided with two compression roller modules, each compression roller module is composed of an upper roller and a lower roller, the compression roller modules are fixed in the furnace body through two vertical plates, the upper parts of the vertical plates are also provided with screw rod devices, the two ends of the upper roller are connected with the screw rod devices, the two ends of the lower roller are installed at the middle parts of the vertical plates, short wave infrared radiators are further installed above the upper rollers, a heat insulation plate is further arranged between the two compression roller modules, and the middle part of the heat insulation plate is provided.
2. The infrared heated carbon fiber thermoplastic polymer prepreg device of claim 1, wherein: the screw device comprises a screw, a rotary table and a moving plate, a groove is formed in the upper portion of the vertical plate, the moving plate is installed in the groove, the lower portion of the screw is connected with the moving plate, and two ends of the upper roller are installed in the middle of the moving plate.
3. The infrared heated carbon fiber thermoplastic polymer prepreg device of claim 1, wherein: the middle-long wave infrared radiator is installed on the lower box body through a supporting rod, and two ends of the short wave infrared radiator are fixed in the upper cover.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920918076.0U CN210233630U (en) | 2019-06-18 | 2019-06-18 | Infrared heating carbon fiber thermoplastic polymer preimpregnation device |
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| CN201920918076.0U CN210233630U (en) | 2019-06-18 | 2019-06-18 | Infrared heating carbon fiber thermoplastic polymer preimpregnation device |
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| CN210233630U true CN210233630U (en) | 2020-04-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126127A (en) * | 2019-06-18 | 2019-08-16 | 大连理工大学重大装备设计与制造郑州研究院 | Infrared heating carbon fiber thermoplastic polymer preimpregnation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126127A (en) * | 2019-06-18 | 2019-08-16 | 大连理工大学重大装备设计与制造郑州研究院 | Infrared heating carbon fiber thermoplastic polymer preimpregnation device |
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Effective date of registration: 20200426 Address after: 450000 Building No. 2, Xinghua Building, 58 Second Avenue, Zhengzhou Economic and Technological Development Zone, Henan Province 102 Patentee after: Dalian University of Technology's Grand Equipments design and manufacture Zhengzhou Research Institute Address before: 450000 Building No. 2, Xinghua Building, 58 Second Avenue, Zhengzhou Economic and Technological Development Zone, Henan Province 102 Co-patentee before: Zhengzhou great Gong high and new technologies Co.,Ltd. Patentee before: Dalian University of Technology's Grand Equipments design and manufacture Zhengzhou Research Institute |
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Effective date of registration: 20220520 Address after: No.102, building 2, Xinghua building, 58 Second Street, Zhengzhou Economic and Technological Development Zone, Henan Province Patentee after: Dalian University of Technology's Grand Equipments design and manufacture Zhengzhou Research Institute Patentee after: Dalian University of Technology Address before: No.102, building 2, Xinghua building, 58 Second Street, Zhengzhou Economic and Technological Development Zone, Henan Province Patentee before: Dalian University of Technology's Grand Equipments design and manufacture Zhengzhou Research Institute |
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Effective date of registration: 20230119 Address after: 102, Building B, Luoyang Research Institute, Dalian University of Technology, No. 265, Kaiyuan Avenue, Luolong District, Luoyang City, Henan Province, 471000 Patentee after: Dagong Carbon Ding Technology Luoyang Co.,Ltd. Address before: No.102, building 2, Xinghua building, 58 Second Street, Zhengzhou Economic and Technological Development Zone, Henan Province Patentee before: Dalian University of Technology's Grand Equipments design and manufacture Zhengzhou Research Institute Patentee before: DALIAN University OF TECHNOLOGY |
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