CN115257128A - Fiber-reinforced thermoplastic resin-based honeycomb core manufacturing device and method - Google Patents
Fiber-reinforced thermoplastic resin-based honeycomb core manufacturing device and method Download PDFInfo
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- CN115257128A CN115257128A CN202210830478.1A CN202210830478A CN115257128A CN 115257128 A CN115257128 A CN 115257128A CN 202210830478 A CN202210830478 A CN 202210830478A CN 115257128 A CN115257128 A CN 115257128A
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- 229920005992 thermoplastic resin Polymers 0.000 title claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 88
- 238000003466 welding Methods 0.000 claims abstract description 84
- 239000000835 fiber Substances 0.000 claims abstract description 73
- 239000002131 composite material Substances 0.000 claims abstract description 43
- 239000011159 matrix material Substances 0.000 claims abstract description 37
- 239000000805 composite resin Substances 0.000 claims abstract description 10
- -1 polypropylene Polymers 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 239000004952 Polyamide Substances 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 7
- 239000003365 glass fiber Substances 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 229920002647 polyamide Polymers 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 229920006231 aramid fiber Polymers 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920006324 polyoxymethylene Polymers 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 229930040373 Paraformaldehyde Natural products 0.000 claims 1
- 239000004721 Polyphenylene oxide Substances 0.000 claims 1
- 229920006380 polyphenylene oxide Polymers 0.000 claims 1
- 230000008569 process Effects 0.000 description 7
- 238000004826 seaming Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229920013636 polyphenyl ether polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/146—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers whereby one or more of the layers is a honeycomb structure
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a device and a method for manufacturing a fiber reinforced thermoplastic resin-based honeycomb core, which comprises a feeding guide rail, a first welding mechanism and a second welding mechanism, wherein the feeding guide rail is arranged on the feeding guide rail; the feeding guide rail is used for conveying the fiber reinforced thermoplastic resin-based composite board; the first welding mechanism and the second welding mechanism are arranged at intervals along the feeding direction of the feeding guide rail, the first welding mechanism and the second welding mechanism respectively comprise a plurality of groups of first clamps and second clamps which can move oppositely in pairs, and the first clamps and the second clamps are distributed in a staggered manner in the feeding direction perpendicular to the feeding guide rail; and the first welding mechanism and the second welding mechanism are used for alternately welding two adjacent fiber reinforced thermoplastic resin matrix composite plates respectively to obtain the fiber reinforced thermoplastic resin matrix honeycomb core containing the regular hexagonal honeycomb structure. The device and the method provided by the invention can realize the automatic production of the fiber reinforced thermoplastic resin-based honeycomb core, have high forming precision, simplify the manufacturing process and have high production efficiency.
Description
Technical Field
The invention belongs to the technical field of honeycomb core forming, and particularly relates to a device and a method for manufacturing a fiber reinforced thermoplastic resin-based honeycomb core.
Background
The fiber reinforced thermoplastic resin matrix composite material honeycomb structure has the outstanding advantages of light weight, high strength, good structural stability, good impact resistance and the like, and is widely applied to important fields of aerospace, transportation and the like. With the increasing requirements on energy conservation, emission reduction and lightweight design, the fiber reinforced resin matrix composite honeycomb structure has a very wide application prospect in the fields of biomedical science, civil engineering, mechanical equipment and the like, and the thermoplastic resin material honeycomb plate has a large manufacturing requirement.
At present, the thermoplastic resin matrix composite honeycomb core mainly utilizes glue joint to realize the combination of resin matrix plates and then prepares a honeycomb core with a corresponding hexagonal structure through traction expansion, but the processing method has poor precision, is easy to generate irregular hexagonal honeycomb, has long glue joint curing time and low processing efficiency, and has poor reliability of glue joint positions, thereby influencing the forming and using effects of honeycomb plates. How to rapidly and efficiently realize the reliable manufacture of the fiber reinforced thermoplastic resin matrix composite material honeycomb core is one of the key technologies which need to be solved at present.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a device and a method for manufacturing a fiber reinforced thermoplastic resin-based honeycomb core, which realize automatic production, have high forming precision, simplify the manufacturing process and improve the production efficiency.
The invention provides the following technical scheme:
in a first aspect, a device for manufacturing a fiber reinforced thermoplastic resin-based honeycomb core is provided, which comprises a feeding guide rail, a first welding mechanism and a second welding mechanism;
the feeding guide rail is used for conveying the fiber reinforced thermoplastic resin-based composite plates;
the first welding mechanism and the second welding mechanism are arranged at intervals along the feeding direction of the feeding guide rail, the first welding mechanism and the second welding mechanism respectively comprise a plurality of groups of first clamps and second clamps which can move oppositely in pairs, and the first clamps and the second clamps are distributed in a staggered manner in the feeding direction perpendicular to the feeding guide rail;
and the first welding mechanism and the second welding mechanism are used for alternately welding two adjacent fiber reinforced thermoplastic resin matrix composite plates respectively to obtain the fiber reinforced thermoplastic resin matrix honeycomb core containing the regular hexagonal honeycomb structure.
Further, the feeding guide rail realizes stepping transmission through a stepping motor.
Furthermore, controllable resistance heating devices are arranged in the first clamp and the second clamp, and the first clamp and the second clamp realize displacement through pneumatic pistons.
In a second aspect, there is provided a method of manufacturing a fibre reinforced thermoplastic resin based honeycomb core using the apparatus of the first aspect, comprising the steps of:
when the fiber reinforced thermoplastic resin matrix composite boards are conveyed to the first welding mechanism through the feeding guide rail, the first clamps of the first welding mechanism move pairwise relatively, two adjacent fiber reinforced thermoplastic resin matrix composite boards are heated and pressurized and welded together, and the first clamps are restored to the original positions after the work of the first clamps is finished;
the fiber reinforced thermoplastic resin matrix composite plates continue to advance by one unit, meanwhile, the first welding mechanism moves backwards by one unit, the second welding mechanism advances by one unit, then, the second clamp of the second welding mechanism moves pairwise relatively, two adjacent fiber reinforced thermoplastic resin matrix composite plates are heated and pressurized and welded together, and the second clamp returns to the original position after working is finished;
the fiber reinforced thermoplastic resin matrix composite plates continue to advance by one unit, meanwhile, the second welding mechanism moves backwards by one unit, the first welding mechanism advances by one unit, then the first clamp of the first welding mechanism moves pairwise relatively, two adjacent fiber reinforced thermoplastic resin matrix composite plates are heated and pressurized and welded together, and the first clamp is restored to the original position after the work of the first clamp is finished;
and repeating the two steps to enable the second welding mechanism and the first welding mechanism to work alternately, so as to obtain the fiber reinforced thermoplastic resin matrix honeycomb core containing the regular hexagonal honeycomb structure.
Further, one unit length of the advancing fiber reinforced thermoplastic resin matrix composite board is the side length of the regular hexagonal honeycomb.
Further, the fiber in the fiber-reinforced thermoplastic resin-based composite board is any one of glass fiber, carbon fiber, ceramic fiber, graphite fiber, polyester fiber, aramid fiber and natural fiber.
Further, the thermoplastic resin in the fiber reinforced thermoplastic resin-based composite board is any one of polypropylene, polyethylene, polyvinyl chloride, polyphenyl ether, polyamide and polyformaldehyde.
Further, the thickness of the fiber reinforced thermoplastic resin matrix composite board is 0.1-3.0 mm, and the width of the fiber reinforced thermoplastic resin matrix composite board is 1.0-10.0 cm.
Further, the heating temperature when the first clamp and the second clamp are welded with the fiber reinforced thermoplastic resin matrix composite board is 100-280 ℃, the extrusion force is 0.1-5.0 MPa, and the clamping time is 1-5 s.
Furthermore, the clamping surface of the first clamp and the second clamp is rectangular, the length of the rectangle is 1.0-10.0 cm, and the width of the rectangle is 0.5-5.0 cm.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the invention, the fiber reinforced thermoplastic resin matrix honeycomb core containing the regular hexagon honeycomb structure is obtained through the continuous feeding of the fiber reinforced thermoplastic resin matrix composite board and the alternate work of the first welding mechanism and the second welding mechanism, so that the automatic production can be realized, the forming precision is high, the manufacturing process is simplified, and the production efficiency is high;
(2) According to the invention, the first clamp and the second clamp are used for heating and pressurizing two adjacent fiber reinforced thermoplastic resin matrix composite plates, so that the interface materials are fused, the thermoplastic welding effect is achieved, and the bonding strength of the composite plates is high;
(3) The manufacturing process provided by the invention is efficient and reliable, the capability and the quality of manufacturing the fiber reinforced thermoplastic resin matrix composite material honeycomb core are greatly improved, and the technology is not limited by resin materials and fiber reinforced body materials and has wider application range and adaptability.
Drawings
FIG. 1 is a schematic structural view of an apparatus for producing a fiber-reinforced thermoplastic resin-based honeycomb core in the embodiment of the present invention;
FIG. 2 is a schematic view of a first welding mechanism in operation according to an embodiment of the present invention;
FIG. 3 is a schematic view of the first and second welding mechanisms in an alternate motion in accordance with an embodiment of the present invention;
labeled in the figure as: 1. a first welding mechanism; 2. a second welding mechanism; 3. fiber reinforcement thermoplastic resin base composite board.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
It should be noted that in the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a fiber reinforced thermoplastic resin based honeycomb core manufacturing apparatus, which includes a feeding rail, a first bonding mechanism 1, and a second bonding mechanism 2.
The feeding guide rail realizes stepping transmission through a stepping motor and is used for transmitting the fiber reinforced thermoplastic resin matrix composite board 3.
The first welding mechanism 1 and the second welding mechanism 2 are arranged at intervals along the feeding direction of the feeding guide rail, the first welding mechanism 1 and the second welding mechanism 2 respectively comprise a plurality of groups of first clamps and second clamps capable of moving in a pairwise opposite mode, and the first clamps and the second clamps are distributed in a staggered mode in the feeding direction perpendicular to the feeding guide rail. Controllable resistance heating devices are arranged in the first clamp and the second clamp, and the first clamp and the second clamp realize displacement through pneumatic pistons; the clamping surfaces of the first clamp and the second clamp are rectangular, the length of the rectangle is 1.0-10.0 cm, and the width of the rectangle is 0.5-5.0 cm. The first welding mechanism 1 and the second welding mechanism 2 are used for alternately welding two adjacent fiber reinforced thermoplastic resin matrix composite boards 3 respectively to obtain the fiber reinforced thermoplastic resin matrix honeycomb core containing the regular hexagonal honeycomb structure.
Example 2
This example provides a method for manufacturing a fiber reinforced thermoplastic resin based honeycomb core using the apparatus of example 1, wherein the rectangular clamping surfaces of the first and second clamps have a length of 2.0cm and a width of 1.0cm. The specific manufacturing steps are as follows:
(1) As shown in figure 1, six carbon fiber reinforced polyethylene composite sheets with the thickness of 0.5mm and the width of 1.0cm are taken to be fed step by step through a feeding guide rail, and the step distance is 10.0mm.
(2) As shown in fig. 2, after the carbon fiber reinforced polyethylene composite sheet is stepped to a corresponding position, the first clamps of the first welding mechanism 1 are heated to 120 ℃ and move in pairs, two sheets of plates between the two first clamps are extruded together under an external load, the extrusion force is 0.2MPa, the two sheets of plates are kept for 2s, then the first clamps are quickly released to restore to the initial position, the two sheets of plates between the first clamps are firmly welded together, and in the whole process, the second welding mechanism 2 is kept in the original state and does not work.
(3) As shown in fig. 3, the carbon fiber reinforced polyethylene composite sheet was continuously stepped forward by 10mm while the first seaming mechanism was stepped backward by 10mm and the second seaming mechanism was stepped forward by 10mm.
(4) The second clamps of the second welding mechanism 2 are heated to 120 ℃ and move pairwise in a relative mode, two plates in the middle of the second clamps are extruded together under the external load, the extrusion force is 0.2MPa and is kept for 2s, then the second clamps are quickly loosened and are restored to the initial positions, the two plates in the middle of the second clamp bodies are firmly welded together, and in the whole process, the first welding mechanism 1 is kept in the original state and does not work.
(5) The carbon fibre reinforced polyethylene composite sheet continues to step forward by 10mm whilst the second seaming mechanism 2 steps backward by 10mm and the first seaming mechanism 1 steps forward by 10mm.
(6) And (5) repeating the steps (2) - (5), and alternately working through the first welding mechanism 1 and the second welding mechanism 2 to obtain the carbon fiber reinforced polyethylene honeycomb core containing the regular hexagonal honeycomb structure, so that continuous efficient automatic production and manufacturing are realized, the honeycomb structure is stable, and the service performance is reliable.
Example 3
This example provides a method of manufacturing a fiber reinforced thermoplastic resin based honeycomb core using the apparatus of example 1, wherein the rectangular clamping surfaces of the first and second clamps are 1.0cm in length and 0.5cm in width. The specific manufacturing steps are as follows:
(1) As shown in figure 1, six glass fiber reinforced polypropylene composite sheets with the thickness of 0.1mm and the width of 1.0cm are taken to carry out stepping feeding through a feeding guide rail, and the stepping distance is 5mm.
(2) As shown in fig. 2, after the glass fiber reinforced polypropylene composite sheet is stepped to a corresponding position, the first clamps of the first welding mechanism 1 are heated to 200 ℃ and move in pairs, two sheets of plates between the two first clamps are extruded together under an external load, the extrusion force is 0.1MPa, the two sheets of plates are kept for 1s, then the first clamps are quickly released to recover to an initial position, the two sheets of plates between the first clamps are firmly welded together, and in the whole process, the second welding mechanism 2 is kept in an original state and does not work.
(3) As shown in fig. 3, the glass fiber reinforced polypropylene composite sheet is further stepped forward by 5mm, and at the same time, the first bonding mechanism 1 is stepped backward by 5mm, and the second bonding mechanism 2 is stepped forward by 5mm.
(4) The second clamps of the second welding mechanism 2 are heated to 200 ℃ and move pairwise in a relative mode, two plates in the middle of the second clamps are extruded together under the external load, the extrusion force is 0.1MPa, the second clamps are kept for 1s, then the second clamps are quickly loosened and restored to the initial positions, the two plates in the middle of the second clamp bodies are firmly welded together, and in the whole process, the first welding mechanism 1 is kept in the original state and does not work.
(5) The glass fiber reinforced polypropylene composite sheet continues to step forward by 5mm while the second seaming mechanism 2 steps backward by 5mm and the first seaming mechanism 1 steps forward by 5mm.
(6) And (5) repeating the steps (2) to (5), and alternately working through the first welding mechanism 1 and the second welding mechanism 2 to obtain the glass fiber reinforced polypropylene honeycomb core containing the regular hexagonal honeycomb structure, so that continuous efficient automatic production and manufacturing are realized, the honeycomb structure is stable, and the service performance is reliable.
Example 4
This example provides a method for manufacturing a fiber reinforced thermoplastic resin based honeycomb core using the apparatus of example 1, wherein the rectangular clamping surfaces of the first and second clamps have a length of 10cm and a width of 5cm. The specific manufacturing steps are as follows:
(1) As shown in figure 1, six graphite fiber reinforced polyamide composite sheets with the thickness of 3.0mm and the width of 10cm are taken and fed step by step through a feeding guide rail, and the step distance is 5cm.
(2) As shown in fig. 2, after the graphite fiber reinforced polyamide composite sheet is stepped to a corresponding position, the first clamps of the first welding mechanism 1 are heated to 280 ℃ and move in pairs, two sheets between the two first clamps are pressed together under an external load, the pressing force is 5MPa, the two sheets are kept for 5s, then the first clamps are quickly released to recover to the initial position, the two sheets between the first clamps are firmly welded together, and in the whole process, the second welding mechanism 2 is kept in the original state and does not work.
(3) As shown in fig. 3, the graphite fiber reinforced polyamide composite sheet is continuously stepped forward by 5cm, and at the same time, the first welding mechanism 1 is stepped backward by 5cm, and the second welding mechanism 2 is stepped forward by 5cm.
(4) The second clamps of the second welding mechanism 2 are heated to 280 ℃ and move pairwise in a relative mode, two plate materials in the middle of the second clamps are extruded together under an external load, the extrusion force is 5MPa and is kept for 5s, then the second clamps are quickly loosened and are restored to the initial positions, the two plate materials in the middle of the second clamp bodies are firmly welded together, and in the whole process, the first welding mechanism 1 is kept in the original state and does not work.
(5) The graphite fiber reinforced polyamide composite sheet is continuously stepped forward by 5cm, meanwhile, the second welding mechanism 2 is stepped backward by 5cm, and the first welding mechanism 1 is stepped forward by 5cm.
(6) And (3) repeating the steps (2) - (5), and alternately working through the first welding mechanism 1 and the second welding mechanism 2 to obtain the graphite fiber reinforced polyamide honeycomb core containing the regular hexagonal honeycomb structure, so that continuous efficient automatic production and manufacturing are realized, the honeycomb structure is stable, and the service performance is reliable.
Comparative examples 1 to 3
Honeycomb cores of the same specifications as in examples 2-4 were prepared as comparative examples 1-3 using the existing glue joint process.
Examples 2-4 and comparative examples 1-3 were compared in terms of forming cycle time and honeycomb core wall bonding strength, and the corresponding forming properties are shown in table 1 below.
TABLE 1 Honeycomb core formability
As can be seen from Table 1, the manufacturing process of the embodiments 2-4 of the invention is more efficient, and the manufacturing capability and the production efficiency of the fiber reinforced thermoplastic resin matrix composite honeycomb core are greatly improved; in addition, the honeycomb core manufactured in the embodiments 2 to 4 has high bonding strength, better quality, high forming precision and high qualification rate, and is beneficial to reducing the production cost.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A fiber reinforced thermoplastic resin based honeycomb core manufacturing device is characterized by comprising a feeding guide rail, a first welding mechanism and a second welding mechanism;
the feeding guide rail is used for conveying the fiber reinforced thermoplastic resin-based composite board;
the first welding mechanism and the second welding mechanism are arranged at intervals along the feeding direction of the feeding guide rail, the first welding mechanism and the second welding mechanism respectively comprise a plurality of groups of first clamps and second clamps which can move oppositely in pairs, and the first clamps and the second clamps are distributed in a staggered manner in the feeding direction perpendicular to the feeding guide rail;
and the first welding mechanism and the second welding mechanism are used for alternately welding two adjacent fiber reinforced thermoplastic resin matrix composite plates respectively to obtain the fiber reinforced thermoplastic resin matrix honeycomb core containing the regular hexagonal honeycomb structure.
2. The apparatus for manufacturing a fiber reinforced thermoplastic resin based honeycomb core according to claim 1, wherein the feeding guide is stepwise-conveyed by a stepping motor.
3. The apparatus according to claim 1, wherein controllable resistance heating means are provided in the first and second clamps, the first and second clamps being displaceable by pneumatic pistons.
4. A method for manufacturing a fiber reinforced thermoplastic resin based honeycomb core by using the apparatus as claimed in any one of claims 1 to 3, comprising the steps of:
when the fiber reinforced thermoplastic resin matrix composite boards are conveyed to the first welding mechanism through the feeding guide rail, the first clamps of the first welding mechanism move pairwise relatively, two adjacent fiber reinforced thermoplastic resin matrix composite boards are heated and pressurized and welded together, and the first clamps are restored to the original positions after the work of the first clamps is finished;
the fiber reinforced thermoplastic resin matrix composite plates continue to advance by one unit, meanwhile, the first welding mechanism moves backwards by one unit, the second welding mechanism advances by one unit, then, the second clamp of the second welding mechanism moves pairwise relatively, two adjacent fiber reinforced thermoplastic resin matrix composite plates are heated and pressurized and welded together, and the second clamp returns to the original position after working is finished;
the fiber reinforced thermoplastic resin matrix composite boards continue to advance by one unit, meanwhile, the second welding mechanism moves backwards by one unit, the first welding mechanism advances by one unit, then the first clamp of the first welding mechanism moves pairwise relatively, two adjacent fiber reinforced thermoplastic resin matrix composite boards are heated and pressurized and welded together, and the first clamp is restored to the original position after the work is finished;
and repeating the two steps to enable the second welding mechanism and the first welding mechanism to work alternately, so as to obtain the fiber reinforced thermoplastic resin matrix honeycomb core containing the regular hexagonal honeycomb structure.
5. The method for manufacturing a fiber-reinforced thermoplastic resin-based honeycomb core according to claim 4, wherein one unit length of the advancing fiber-reinforced thermoplastic resin-based composite board material is a side length of a regular hexagonal honeycomb.
6. The method of claim 4, wherein the fiber in the fiber-reinforced thermoplastic resin-based composite board is any one of glass fiber, carbon fiber, ceramic fiber, graphite fiber, polyester fiber, aramid fiber, and natural fiber.
7. The method for manufacturing a fiber-reinforced thermoplastic resin-based honeycomb core according to claim 4, wherein the thermoplastic resin in the fiber-reinforced thermoplastic resin-based composite board is any one of polypropylene, polyethylene, polyvinyl chloride, polyphenylene oxide, polyamide, and polyoxymethylene.
8. The method of claim 4, wherein the fiber reinforced thermoplastic resin based composite board has a thickness of 0.1 to 3.0mm and a width of 1.0 to 10.0cm.
9. The method for manufacturing the fiber reinforced thermoplastic resin-based honeycomb core according to claim 4, wherein the first clamp and the second clamp are used for welding the fiber reinforced thermoplastic resin-based composite board at a heating temperature of 100-280 ℃, an extrusion force of 0.1-5.0 MPa and a clamping time of 1.0-5.0 s.
10. The method of claim 4, wherein the clamping surface of the first and second clamps is rectangular, the length of the rectangle is 1.0-10.0 cm, and the width of the rectangle is 0.5-5.0 cm.
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