CN111237373A - Novel variable-strength honeycomb structure, manufacturing device and manufacturing method thereof - Google Patents
Novel variable-strength honeycomb structure, manufacturing device and manufacturing method thereof Download PDFInfo
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- CN111237373A CN111237373A CN202010076373.2A CN202010076373A CN111237373A CN 111237373 A CN111237373 A CN 111237373A CN 202010076373 A CN202010076373 A CN 202010076373A CN 111237373 A CN111237373 A CN 111237373A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 239000011888 foil Substances 0.000 claims abstract description 101
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000004080 punching Methods 0.000 claims abstract description 12
- 239000003292 glue Substances 0.000 claims description 32
- 238000001035 drying Methods 0.000 claims description 17
- 238000005520 cutting process Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000003475 lamination Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 239000003085 diluting agent Substances 0.000 claims description 3
- 238000007731 hot pressing Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 241000264877 Hippospongia communis Species 0.000 abstract description 51
- 230000008569 process Effects 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 4
- 238000009781 safety test method Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 6
- 239000011148 porous material Substances 0.000 description 5
- 238000003892 spreading Methods 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000011076 safety test Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
- F16F7/121—Vibration-dampers; Shock-absorbers using plastic deformation of members the members having a cellular, e.g. honeycomb, structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0078—Shock-testing of vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/0225—Cellular, e.g. microcellular foam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2226/00—Manufacturing; Treatments
- F16F2226/04—Assembly or fixing methods; methods to form or fashion parts
- F16F2226/042—Gluing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2226/00—Manufacturing; Treatments
- F16F2226/04—Assembly or fixing methods; methods to form or fashion parts
- F16F2226/045—Press-fitting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2226/00—Manufacturing; Treatments
- F16F2226/04—Assembly or fixing methods; methods to form or fashion parts
- F16F2226/047—Sheet-metal stamping
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to the field of automobile safety testing, in particular to a novel variable-strength honeycomb structure, a manufacturing device and a manufacturing method thereof, aiming at solving the problems that the processing difficulty of the conventional variable-strength honeycomb is high, the purchase period is long from abroad and the cost is high; the uniform-thickness and equal-strength honeycomb chemical treatment has many influence factors and is not suitable for all materials; the invention provides a novel variable-strength honeycomb structure, which is characterized in that the wall of a house is provided with a honeycomb structure with gradually changed through holes at equal intervals, gradually changed through hole intervals or gradually changed through holes and intervals, a manufacturing device of the variable-strength honeycomb structure realizes the manufacturing requirements of variable-strength honeycombs of different specifications by using a special opening device, and the manufacturing method of the variable-strength honeycomb structure directly manufactures the foundation of the variable-strength honeycomb in the punching stage by using the special opening device in the processing process and then manufactures the variable-strength honeycomb by multiple processes, so that the manufacturing is simple and is not limited by the type of foil.
Description
Technical Field
The invention relates to the field of automobile safety testing, in particular to a novel variable-strength honeycomb structure, a manufacturing device and a manufacturing method thereof.
Background
Honeycombs with gradually changing axial strength are required in the field of automobile safety tests and in the field of special collision buffers. The common technical means for realizing the variable strength honeycomb mainly comprise: firstly, rolling the aluminum foil with variable thickness in advance, then manufacturing the honeycomb with variable thickness of wall thickness, and further realizing the strength change of the honeycomb. The technical defects of the scheme are as follows: the technology for manufacturing the variable-thickness foil is difficult to realize, the domestic prior art is difficult to stably realize the processing of the double-zero foil, the foreign products are purchased, the manufacturing period is long, and the cost is high. Secondly, the uniform strength honeycomb with consistent thickness is manufactured firstly, and then the axial strength performance change is realized through chemical treatment. The technical scheme has the defects that: the chemical treatment involves more variable factors, is difficult to accurately control and has poor product quality consistency; in addition, the foil material to which this method is applied is capable of being chemically treated, so this method has a certain limitation. Thirdly, manufacturing equal-strength honeycombs with consistent thickness, gradually increasing the stressed area of the honeycombs by cutting inclined planes, and then realizing the change of the force value of the honeycombs. Although this method is simple, the honeycomb strength is not changed per se, but the change in nominal strength is achieved simply by changing the spatial volume of the product. The energy absorption requirement of most occasions is not met.
Disclosure of Invention
The purpose of the invention is as follows: the method aims to solve the problems that the processing difficulty of the variable-thickness honeycomb is high, the purchase period is long from abroad and the cost is high at present; the uniform-thickness and equal-strength honeycomb chemical treatment has many influence factors and is not suitable for all materials; the constant-thickness honeycomb cut inclined plane only changes the space volume and does not meet the energy absorption requirement, and the like, and provides a novel variable-strength honeycomb structure, a manufacturing device and a manufacturing method thereof.
The invention content is as follows: the novel variable-strength honeycomb structure comprises a plurality of hexagonal single rooms, the walls of two adjacent single rooms are coplanar, and through holes with gradually changed sizes are formed in each wall at equal intervals from bottom to top, or through holes with gradually changed sizes are formed in each wall at gradually changed intervals from bottom to top.
Further, the through hole is circular.
The novel variable strength honeycomb manufacturing device comprises a hole opening mechanism, wherein the hole opening mechanism comprises a press roller, a needle roller, two supporting pieces and two adjusting modules, two ends of the press roller are connected with the supporting pieces, two ends of the needle roller are connected with the adjusting modules, each adjusting module is arranged at the upper end of one supporting piece,
the compression roller and the needle roller are arranged in parallel, needles with gradually changed needle diameters are arranged on the end face of the outer circumference of the needle roller at equal intervals in the axial direction, or needles with the same needle diameters are arranged on the end face of the outer circumference of the needle roller at gradually changed intervals in the axial direction, or needles with gradually changed needle diameters are arranged on the end face of the outer circumference of the needle roller at gradually changed intervals in the axial direction.
Furthermore, the adjusting module comprises an end plate, an adjusting bolt and an adjusting block, the end plate is lapped on the top end of the supporting piece, the adjusting block is arranged on the upper portion of the supporting piece, the inner side end face of the adjusting block is connected with the end portion of the needle roller, a convex groove horizontally arranged is formed in the top end of the adjusting block, the adjusting screw is inserted into the end plate from top to bottom, the lower end of the adjusting screw is connected with a limiting head, and the limiting head is embedded into the convex groove of the adjusting block.
Preferably, the lower end of the support member is provided with a threaded hole.
The novel variable strength honeycomb manufacturing method comprises the following steps:
the method comprises the following steps: starting up preparation: starting a power supply, opening a drying device for preheating, installing a foil coil, a glue spreader and a tapping device, and setting cutting parameters;
step two: starting the equipment, wherein the foil reaches the hole forming device through the first aligning device;
step three: punching holes on the foil, and processing required hole positions on the surface of the foil under the action of a needle roller;
step four: flattening the foil, wherein the foil passes through a first compression roller and a support roller, and burrs left after the foil is perforated are removed;
step five: coating glue on the foil, wherein the foil coats glue in the glue pool on the foil through a gluing device;
step six: drying the foil, wherein the foil enters a drying device through a second aligning device to be dried;
step seven: drying a diluent of the glue on the surface of the foil in a drying device, and solidifying the glue on the surface of the foil;
step eight: shearing the foil, wherein the foil passes through a material storage device, the foil moves in the material storage device, and when the front end of the foil is fully stored, the foil is sheared by a cutting device;
step nine: placing foils: after the equipment is cut off, a worker stacks foils on an operation table, the cut foils are kept to be aligned in each direction and are stacked one by one to form a foil stack, when the number of the cut foils reaches the set number of the equipment parameters, the equipment stops cutting, and the last cut foil is reversely buckled on the foil stack which is placed in the early stage;
step ten: hot-pressing and solidifying, namely, after the foil lamination is sent into a hot press, starting the hot press, and forming the honeycomb plate after the foil lamination is hot-pressed and solidified;
step eleven: sawing the honeycomb plate according to the required size, fixing and stretching accessories on two plate surfaces of the honeycomb plate, stretching on a stretching machine, and stretching to the specific cell size to form the honeycomb structure.
Preferably, the secondary foil running speed of the step is 0.5-5 m/s.
Preferably, the glue concentration of the glue applied in the step five is 15-25 cPS.
Preferably, the temperature of the seventh drying device is 150 ℃.
Preferably, the pressure of the step ten curing furnace is 4.5-5.5MPa, and the temperature is 170-180 ℃.
The invention has the beneficial effects that: the scheme provides a novel variable-strength honeycomb structure, a manufacturing device and a manufacturing method thereof, namely mechanical punching is performed on foils with equal thickness, and the honeycomb is manufactured by changing the punching shape, size and density, so that the variable strength of the honeycomb is realized. The manufacturing method is simple, can be realized by the roller pair for the complete machine punching on the existing foil uncoiler or glue spreader, and is not limited by the type of foil.
Description of the drawings:
FIG. 1 is a simplified process flow diagram of the present invention;
FIG. 2 is a detailed view of the process flow of the present invention;
FIG. 3 is a schematic view of the aperturing device of the present invention;
FIG. 4 shows foils with the same cell size and different arrangement densities;
FIG. 5 is a view of foils with the same pitch and different cell sizes;
FIG. 6 shows honeycomb with different cell sizes and same pitch;
FIG. 7 is an enlarged view of a portion of FIG. 5;
FIG. 8 shows a honeycomb with different cell sizes and different spacings;
FIG. 9 is an enlarged view of a portion of FIG. 7;
FIG. 10 is a force displacement curve for a material thickness of 0.05mm, a material thickness of 5052, a tensile strength of 295MPa, a yield strength of 245MPa, a Poisson ratio of 0.33, using Ansys for simulation analysis, with different pore diameters and the same spacing;
FIG. 11 is a force displacement curve for a material thickness of 0.05mm, a material thickness of 5052, a tensile strength of 295MPa, a yield strength of 245MPa, a Poisson ratio of 0.33, using Ansys for simulation analysis, with the same pore size and different pore sizes.
Fig. 12 is not a schematic diagram of the gluing position and the cutting position of the foil laminate.
The specific implementation mode is as follows:
the following embodiments are described with reference to the accompanying drawings: as shown in fig. 1-3:
the first embodiment is as follows: the novel variable-strength honeycomb structure comprises a plurality of hexagonal single rooms, the walls of two adjacent single rooms are coplanar, and through holes with gradually changed sizes are formed in each wall at equal intervals from bottom to top, or through holes with gradually changed sizes are formed in each wall at gradually changed intervals from bottom to top.
The second embodiment is as follows: the through hole is circular.
Other embodiments are the same as the first embodiment.
The third concrete implementation mode: the punching mechanism comprises a punching mechanism adjusting screw rod 1 adjusting screw rod, the punching mechanism adjusting screw rod 1 comprises a press roller adjusting screw rod 1-2 adjusting screw rod, a needle roller adjusting screw rod 1-3 adjusting screw rod, two supporting piece adjusting screw rods 1-1 adjusting screw rods and two adjusting modules, two ends of the press roller adjusting screw rod 1-2 adjusting screw rod are connected with the supporting piece adjusting screw rods 1-1 adjusting screw rods, two ends of the needle roller adjusting screw rods 1-3 adjusting screw rods are connected with the adjusting modules, each adjusting module is arranged at the upper end of one supporting piece adjusting screw rod 1-1 adjusting screw rod,
the compression roller adjusting screw rods 1-2 and the needle roller adjusting screw rods 1-3 are arranged in parallel, needles with gradually changed needle diameters are arranged on the outer circumferential end faces of the needle roller adjusting screw rods 1-3 at equal intervals in the axial direction, or needles with the same needle diameters are arranged on the outer circumferential end faces of the needle roller adjusting screw rods 1-3 at gradually changed axial intervals, or needles with gradually changed needle diameters are arranged on the outer circumferential end faces of the needle roller adjusting screw rods 1-3 at gradually changed axial intervals.
The fourth concrete implementation mode: the adjusting module comprises end plates 1-4, adjusting bolts 1-5 and adjusting blocks 1-6, wherein the end plates 1-4 are lapped on the top ends of the supporting pieces 1-1, the adjusting blocks 1-6 are arranged on the upper portions of the supporting pieces 1-1, the inner side end faces of the adjusting blocks 1-6 are connected with the end portions of the needle rollers 1-3, convex grooves which are horizontally arranged are formed in the top ends of the adjusting blocks 1-6, adjusting screws 1-5 are inserted into the end plates 1-4 from top to bottom, the lower ends of the adjusting screws 1-5 are connected with limiting heads, and the limiting heads are embedded into the convex grooves of the adjusting blocks 1-6.
Other embodiments are the same as the third embodiment.
The end plate is detachably connected with the supporting piece, the adjusting screw is in threaded fit with the end plate, and the lower end of the adjusting screw is connected with the adjusting block through a clamping groove structure. The adjusting block moves up and down by rotating the handle at the upper end of the adjusting screw rod. Thereby realizing the up-and-down adjustment of the needle roller.
The end plate is provided with a threaded hole and is additionally connected with the original glue spreader through a connecting bolt hole.
The fifth concrete implementation mode: the lower end of the adjusting screw rod 1-1 of the supporting piece is provided with a threaded hole.
Other embodiments are the same as the third embodiment.
The sixth specific implementation mode: the novel variable strength honeycomb manufacturing method comprises the following steps:
the method comprises the following steps: starting up preparation: starting a power supply, opening a drying device 5 for preheating, installing a foil coil 2, a glue spreader 3 and a tapping device 1, and setting cutting parameters;
step two: starting the equipment, wherein the foil reaches the hole forming device 1 through the first aligning device 6;
step three: punching holes on the foil, and processing required hole positions on the surface of the foil under the action of a needle roller 1-3;
step four: flattening the foil, wherein the foil passes through a first compression roller 8 and a supporting roller 9, and removing residual burrs after the foil is perforated;
step five: coating glue on the foil, wherein the foil coats glue in a glue pool 4 on the foil through a glue coating device 3;
step six: drying the foil, wherein the foil enters a drying device 5 through a second aligning device 10 to be dried;
step seven: drying the diluent of the glue on the surface of the foil in a drying device 5, and solidifying the glue on the surface of the foil;
step eight: the foil is cut, the foil passes through a storage device 12, the foil moves in the storage device 12, and when the front end of the foil is fully stored, a cutting device 7 cuts the foil;
step nine: placing foils: after the equipment is cut off, a worker stacks foils on an operation table, the cut foils are kept to be aligned in each direction and are stacked one by one to form a foil stack, when the number of the cut foils reaches the set number of the equipment parameters, the equipment stops cutting, and the last cut foil is reversely buckled on the foil stack which is placed in the early stage;
step ten: hot-pressing and solidifying, namely, after the foil lamination is sent into a hot press, starting the hot press, and forming the honeycomb plate after the foil lamination is hot-pressed and solidified;
step eleven: sawing the honeycomb plate according to the required size, fixing and stretching accessories on two plate surfaces of the honeycomb plate, stretching on a stretching machine, and stretching to the specific cell size to form the honeycomb structure.
The seventh embodiment: the second foil material running speed in the step is 0.5-5 m/s.
The other embodiments are the same as the sixth embodiment.
In the fifth step, the glue concentration of the glue is 15-25 cPS.
The other embodiments are the same as the sixth embodiment.
The specific implementation method nine: the temperature of the seventh drying device is 150 ℃.
The other embodiments are the same as the sixth embodiment.
Other embodiments ten: the pressure of the ten curing furnaces in the step is 4.5-5.5MPa, and the temperature is 170-180 ℃.
The other embodiments are the same as the sixth embodiment.
Holes meeting interval change and size change are processed according to needles on a needle roller in the third step, an aluminum honeycomb core glue spreader produced by Zhongshan Youzu is selected as glue spreading equipment in the fifth step, glue spreading is performed once every other section in the glue spreading process, when nine foils are placed, two adjacent cut foils of the manufactured foil lamination are locally glued together, and the required size when the honeycomb plate is sawed in the eleventh step is the longitudinal size of a honeycomb room and the width of the honeycomb before being stretched.
Example 1:
honeycombs with the same opening size and different spacing were made as in fig. 6-7. The side length of the honeycomb cells is 9mm, the diameter of the open pore is 2mm, and from bottom to top, the distances among the small pores are sequentially increased by 0.2mm from 2.2mm to 2.4mm and 2.6mm … … until the distance is 4 mm.
Example 2:
honeycombs with different opening sizes and the same pitch are produced as shown in fig. 8-9. The side length of the honeycomb cell is 9mm, the distance between the small holes is 3.3mm, and the diameters of the open holes are sequentially reduced by 0.2mm from bottom to top until the diameter is 1mm, wherein the diameters of the open holes are 3mm, 2.8mm and 2.6 mm.
Claims (10)
1. Novel variable strength honeycomb structure which characterized in that: the house wall comprises a plurality of hexagonal single rooms, the walls of two adjacent single rooms are coplanar, each wall is provided with through holes with gradually changed sizes at equal intervals from bottom to top, or each wall is provided with through holes with gradually changed sizes at gradually changed intervals from bottom to top.
2. The novel variable strength honeycomb of claim 1: the method is characterized in that: the through hole is circular.
3. Novel become intensity honeycomb preparation device, its characterized in that: the punching mechanism comprises a punching mechanism (1), wherein the punching mechanism (1) comprises a press roller (1-2), a needle roller (1-3), two supporting pieces (1-1) and two adjusting modules, two ends of the press roller (1-2) are connected with the supporting pieces (1-1), two ends of the needle roller (1-3) are connected with the adjusting modules, each adjusting module is arranged at the upper end of one supporting piece (1-1),
the compression roller (1-2) and the needle roller (1-3) are arranged in parallel, needles with gradually changed needle diameters are arranged on the outer circumferential end face of the needle roller (1-3) at equal intervals in the axial direction, or needles with the same needle diameters are arranged on the outer circumferential end face of the needle roller (1-3) at gradually changed axial intervals, or needles with gradually changed needle diameters are arranged on the outer circumferential end face of the needle roller (1-3) at gradually changed axial intervals.
4. The novel variable strength honeycomb making apparatus of claim 3, wherein: the adjusting module comprises end plates (1-4), adjusting bolts (1-5) and adjusting blocks (1-6), wherein the end plates (1-4) are lapped on the top ends of the supporting pieces (1-1), the adjusting blocks (1-6) are arranged on the upper portions of the supporting pieces (1-1), the inner side end faces of the adjusting blocks (1-6) are connected with the end portions of the needle rollers (1-3), convex grooves which are horizontally arranged are formed in the top ends of the adjusting blocks (1-6), the adjusting screws (1-5) are inserted into the end plates (1-4) from top to bottom, the lower ends of the adjusting screws (1-5) are connected with limiting heads, and the limiting heads are embedded into the convex grooves of the adjusting blocks (1-6).
5. The novel variable strength honeycomb making apparatus of claim 3, wherein: the lower end of the supporting piece (1-1) is provided with a threaded hole.
6. The novel variable-strength honeycomb manufacturing method is characterized by comprising the following steps: it comprises the following steps:
the method comprises the following steps: starting up preparation: starting a power supply, opening a drying device (5) for preheating, installing a foil coil (2), a glue spreader (3) and a tapping device (1), and setting cutting parameters;
step two: opening the device, and enabling the foil to reach the hole forming device (1) through the first aligning device (6);
step three: the foil is perforated, and required hole sites are processed on the surface of the foil under the action of the needle rollers (1-3);
step four: flattening the foil, wherein the foil passes through a first compression roller (8) and a support roller (9), and burrs left after the foil is perforated are removed;
step five: coating glue on the foil, wherein the foil coats the glue in the glue pool (4) on the foil through a glue coating device (3);
step six: the foil is dried, and the foil enters a drying device (5) through a second aligning device (10) to be dried;
step seven: drying the diluent of the glue on the surface of the foil in a drying device (5) and solidifying the glue on the surface of the foil;
step eight: the foil is cut, the foil passes through a material storage device (12), the foil moves in the material storage device (12), and when the front end of the foil is fully stored, a cutting device (7) cuts the foil;
step nine: placing foils: after the equipment is cut off, a worker stacks foils on an operation table, the cut foils are kept to be aligned in each direction and are stacked one by one to form a foil stack, when the number of the cut foils reaches the set number of the equipment parameters, the equipment stops cutting, and the last cut foil is reversely buckled on the foil stack which is placed in the early stage;
step ten: hot-pressing and solidifying, namely, after the foil lamination is sent into a hot press, starting the hot press, and forming the honeycomb plate after the foil lamination is hot-pressed and solidified;
step eleven: sawing the honeycomb plate according to the required size, fixing and stretching accessories on two plate surfaces of the honeycomb plate, stretching on a stretching machine, and stretching to the specific cell size to form the honeycomb structure.
7. The method for manufacturing the novel variable-strength honeycomb according to claim 6, wherein the method comprises the following steps: the second foil material running speed in the step is 0.5-5 m/s.
8. The method for manufacturing the novel variable-strength honeycomb according to claim 6, wherein the method comprises the following steps: the glue concentration of the glue coated in the step five is 15-25 cPS.
9. The method for manufacturing the novel variable-strength honeycomb according to claim 6, wherein the method comprises the following steps: the temperature of the seventh drying device (5) is 150 ℃.
10. The method for manufacturing the novel variable-strength honeycomb according to claim 6, wherein the method comprises the following steps: the pressure of the ten curing furnaces in the step is 4.5-5.5MPa, and the temperature is 170-180 ℃.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076276A (en) * | 2022-06-16 | 2022-09-20 | 吉林大学 | Bionic impact-resistant protection structure based on 3D printing and forming and preparation method thereof |
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