CN211031532U - Honeycomb sandwich, sandwich composite board and device capable of continuously producing honeycomb sandwich and sandwich composite board - Google Patents
Honeycomb sandwich, sandwich composite board and device capable of continuously producing honeycomb sandwich and sandwich composite board Download PDFInfo
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- CN211031532U CN211031532U CN201921649054.5U CN201921649054U CN211031532U CN 211031532 U CN211031532 U CN 211031532U CN 201921649054 U CN201921649054 U CN 201921649054U CN 211031532 U CN211031532 U CN 211031532U
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Abstract
The utility model discloses a honeycomb sandwich and sandwich composite board and a device capable of continuously producing the same, which relates to the technical field of sandwich board manufacturing, and comprises a forming roller mechanism, wherein the forming roller mechanism comprises two forming rollers which are oppositely arranged, and a sheet forming space is arranged between the two forming rollers; a cutting mechanism comprising at least one upper blade and at least one lower blade, the upper blade alternating with the lower blade, the upper blade being disposed parallel to the adjacent lower blade; the folding mechanism comprises at least two folding brush rollers, and the rotating speeds of the two folding brush rollers are different; and a baking mechanism. The utility model discloses but serialization production, production efficiency is high, and the honeycomb of output presss from both sides core and presss from both sides core composite sheet thickness even, and the structure does not have the deformation, and the resistance to compression bending strength is high.
Description
Technical Field
The utility model relates to a sandwich panel makes technical field, in particular to but device of serialization production honeycomb clamp core and core composite sheet still relates to a honeycomb clamp core and core composite sheet.
Background
Honeycomb sandwich panels are typically panels made of upper and lower face sheets bonded to opposite sides of a honeycomb core. It is widely applied to various fields with the advantages of light weight, heat preservation, low price, high strength, recoverability and the like. At present, honeycomb sandwich products in the market mainly comprise paper honeycombs, plastic honeycomb cores and metal aluminum honeycombs. The paper honeycomb is in a regular hexagon and corrugated structure formed by gluing, cutting, bonding and processing kraft paper, and odor and VOC exceed standards due to the use of an adhesive; when the honeycomb plate is used, stretching, baking and shaping are needed, uncertainty of the shape of the core which is not stretched properly occurs, and the compression resistance of the honeycomb plate is reduced. The plastic honeycomb solves the problems of easy wetting and damp of the paper honeycomb, and solves the problems of high price, poor sound insulation effect and poor corrosivity of the aluminum honeycomb, and is widely applied to the fields of automobiles, buildings, transportation, logistics packaging, furniture manufacturing and the like.
In carrying out the present invention, the utility model discloses the people finds that there are at least the following problems in the prior art, at present, the plastic honeycomb core shaping main round hole display-indirect method, the hexagonal folding-continuous method, etc. The circular hole display-indirect method process is complex, comprises the procedures of plasticizing and extruding a thin tube, cutting to a fixed length, manually typesetting, baking and bonding, cooling and shaping, slicing and the like, cannot realize continuity in the production of composite boards, has low mass production efficiency, leads to high cost, and needs the splicing of core materials to reduce the bending strength of the sandwich board; the hexagonal folding continuous method relates to a series of hot plastic molding, folding and bonding operations, but the vacuum plastic molding precision is poor, the molding speed is lower than 3m/min, and the uniformity of the wall thickness of the honeycomb and the consistency of the size are difficult to ensure; the bending strength and the compression strength of the sandwich panel are influenced by the phenomena of hole breaking or incapability of forming of the low-gram-weight thin-wall or glass fiber reinforced thermoplastic resin.
Disclosure of Invention
The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, the embodiment of the utility model provides a but device of serialization production honeycomb core and core composite sheet is pressed from both sides in core can the continuous production press from both sides core and core composite sheet to improve production efficiency.
The embodiment of the utility model provides a honeycomb presss from both sides core and presss from both sides core composite sheet still is provided.
According to the embodiment of the first aspect of the utility model, the device for continuously producing the honeycomb sandwich and the sandwich composite board is provided, which comprises a forming roller mechanism, a forming roller mechanism and a sheet forming mechanism, wherein the forming roller mechanism comprises two forming rollers which are oppositely arranged, and a sheet forming space is arranged between the two forming rollers; a cutting mechanism comprising at least one upper blade and at least one lower blade, the upper blade alternating with the lower blade, the upper blade being disposed parallel to the adjacent lower blade; the folding mechanism comprises at least two folding brush rollers, and the rotating speeds of the two folding brush rollers are different; and a baking mechanism.
The device capable of continuously producing the honeycomb sandwich and the sandwich composite board at least has the following beneficial effects: the forming roller mechanism presses the cast sheet into a corrugated sheet, the upper blade and the lower blade cut the corrugated sheet into a foldable corrugated array, the folding mechanism further folds and arranges the corrugated array into a honeycomb grid in an N-shaped manner, the baking mechanism bakes the honeycomb grid, the honeycomb grid is cooled and bonded into a honeycomb sandwich, and the upper and lower end surfaces of the honeycomb sandwich are covered and bonded with the upper and lower surface skins to form the sandwich composite board. The device for continuously producing the honeycomb sandwich and the sandwich composite plate can be used for continuous production, has high production efficiency, and the produced honeycomb sandwich and the sandwich composite plate have uniform thickness, no deformation of the structure and high compression and bending strength.
According to the utility model discloses the embodiment of the first aspect still includes feed mechanism, this feed mechanism extrude the end with the shaping roller mechanism feed end is connected.
According to the utility model discloses the embodiment of the first aspect, each the forming roll has all staggered arrangement to become grooved roll tongue and forming roll recess, one of them the forming roll tongue and another of forming roll the corresponding forming roll recess of forming roll matches.
According to the utility model discloses the embodiment of the first aspect, shaping roller mechanism with air-cooled equipment and horizontal trimming cut-off knife subassembly have been arranged in proper order between the cutting mechanism, horizontal trimming cut-off knife subassembly is including the side cut-off knife that distributes in the left and right sides.
According to an embodiment of the first aspect of the present invention, the baking mechanism includes a crawler compound machine.
According to the utility model discloses the embodiment of first aspect still including being located the size cut-off knife of crawler-type compounding machine output.
According to the embodiment of the second aspect of the present invention, there is provided a honeycomb sandwich and sandwich composite plate, using the present invention, the device of the first aspect of the present invention for continuously producing honeycomb sandwich and sandwich composite plate comprises a honeycomb grid, which comprises a plurality of rows of corrugated core walls arranged in sequence, wherein the corrugated core walls are corrugated plates, each corrugated core wall comprises a first core wall, a connecting core wall and a second core wall which are connected in series, the first core wall in the corrugated core wall is connected with the first core wall in the adjacent corrugated core wall on one side, and the connection is used as a first folding connection portion, the second core wall in the corrugated core wall is connected with the second core wall in the adjacent corrugated core wall on the other side, and the connection is used as a second folding connection portion; an upper skin compounded on the upper end of the honeycomb grid; and a lower skin compounded at a lower end of the honeycomb mesh.
The honeycomb sandwich and the sandwich composite board at least have the following beneficial effects: the honeycomb sandwich and the sandwich composite board have uniform thickness, no deformation of the structure and high compression and bending strength.
According to the utility model discloses the embodiment of second aspect, each of arranging in proper order the ripple type core wall is formed by the ripple type array is folded according to the N type, the ripple type array is formed by the cutting of ripple type sheet material, ripple type sheet material includes continuous connection's last plane, lower plane and slope.
According to an embodiment of the second aspect of the present invention, the corrugated array has upper and lower cuts alternately distributed continuously up and down;
the upper notch cuts off an upper plane and a slope surface of the corrugated sheet, and a lower plane is left as the second folding connecting part;
the lower notch cuts off a lower plane and a slope of the corrugated sheet, leaving an upper plane as the first folding connection.
According to the embodiment of the second aspect of the present invention, the upper skin and the lower skin are one of a thermoplastic resin sheet, a thermoplastic resin roll, a glass fiber reinforced sheet, a glass fiber reinforced roll, a metal sheet and a metal roll.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a forming roller mechanism in an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a corrugated sheet according to an embodiment of the present invention;
FIG. 4 is a schematic illustration of the cutting of a corrugated sheet in an embodiment of the invention;
fig. 5 is an N-fold side view of a corrugated array in an embodiment of the invention;
fig. 6 is an N-fold perspective view of a corrugated array in an embodiment of the invention;
FIG. 7 is a schematic top view of the sandwich composite panel according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of the change of a three-phase square honeycomb sandwich structure according to the embodiment of the present invention;
fig. 9 is a partially enlarged view of a circle a in fig. 6.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the positional or orientational descriptions, such as the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., are the positional or orientational relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, if the terms "first" and "second" are used, they are used for distinguishing technical features, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, "a plurality" means one or more, "a plurality" means two or more, "more than", "less than", "more than" and the like are understood as excluding the present number, "more than", "less than", "more than" and the like are understood as including the present number, unless otherwise specifically limited.
In the description of the present invention, unless explicitly defined otherwise, terms such as "set", "arrange", "install", "connect", "fix" and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention by combining the specific contents of the technical solutions.
In the description of the present invention, unless otherwise expressly limited, a first feature "on" or "under" a second feature may be directly contacting the first feature or the second feature or indirectly contacting the first feature or the second feature through intervening media. Also, a first feature may be "on" or "over" or "on" a second feature, and may be directly on or obliquely above the second feature, or may simply mean that the first feature is at a higher level than the second feature. A first feature being "under" or "beneath" a second feature may be directly under or obliquely under the second feature, or simply indicate that the first feature is at a lesser level than the second feature.
Referring to fig. 1 to 9, the device for continuously producing honeycomb sandwich and sandwich composite board of the present invention comprises a feeding mechanism, a forming roller mechanism 12, an air cooling device 13, a transverse trimming cutter assembly 14, a cutting mechanism 15, a folding mechanism 16, a baking mechanism 17 and a size cutter 18.
Wherein the feeding mechanism comprises an extruder head 11, and the feeding mechanism further comprises a coil feeding system, which is not shown in the figure.
The feeding end of the forming roller mechanism 12 is connected with the extruding end of the feeding mechanism, the forming roller mechanism 12 comprises two opposite forming rollers, a sheet forming space is arranged between the two forming rollers, as shown in fig. 1, the extruding machine head 11 extrudes a casting sheet 21 of continuous thermoplastic resin, and the casting sheet 21 enters the forming roller mechanism 12 for forming. In addition, specifically referring to fig. 2, each of the forming rollers is staggered with forming roller convex grooves 121 and forming roller concave grooves 122, wherein the forming roller convex grooves 121 of one forming roller are matched with the corresponding forming roller concave grooves 122 of the other forming roller. Further, the section of the forming roller groove 122 is one of trapezoid, rectangle and triangle, and similarly, the forming roller convex groove 121 of the other forming roller is matched with the forming roller groove. Each forming roller convex groove 121 and each forming roller concave groove 122 are distributed along the circumference of the corresponding forming roller in a staggered way. Wherein the spacing between the two forming rollers is defined as T1, and the spacing between the forming roller groove 121 of one forming roller and the corresponding forming roller groove 122 of the other forming roller is also T1, as shown in fig. 2. A corrugated sheet 22 extruded through the form roll mechanism 12, the thickness of the corrugated sheet 22 being defined as T2, T2 ═ T1. As shown in fig. 3, the corrugated sheet 22 includes an upper flat surface 221, a lower flat surface 222, and a slope surface 223 that are continuously connected.
The air-cooling device 13 can cool the corrugated sheet 22.
The transverse trim cutter assembly 14 includes trim cutters distributed on the left and right sides which, in this embodiment, are only referenced to the corrugated sheet material 22 and are not to be construed as limiting the present invention. Because the casting sheet 21 is extruded into the corrugated sheet 22 through the forming roller mechanism 12, redundant flashes are generated on the left side and the right side of the corrugated sheet 22, the flashes can be removed through the edge cutting cutter, the cutting edge of the edge cutting cutter is opposite to the running direction of the corrugated sheet 22, cut edges can be crushed and then are recycled to the production line on line and conveyed to the extruder head 11 again, and the crushing equipment is the prior art and is not described any more. In this case, the width of the corrugated sheet 22 is defined as W, and the size of W is determined by the distance between the two trim cutters.
The cutting mechanism 15 includes at least one upper blade 152 and at least one lower blade 151, and as shown in fig. 4, in the present embodiment, two upper blades 152 and two lower blades 151 are provided, wherein the upper blades 152 are alternately arranged with the lower blades 151, and the upper blades 152 are provided in parallel with the adjacent lower blades 151. The cutting heights of the upper blade 152 and the lower blade 151 are adjustable, and the distance between the upper blade 152 and the adjacent lower blade 151 is also adjustable, in this embodiment, the distance between the upper blade 152 and the adjacent lower blade 151 refers to the distance between the cutting edge of the upper blade 152 and the cutting edge of the adjacent lower blade 151 in the horizontal direction. Specifically, the upper blade 152 cuts the upper plane 221 and the slope surface 223 of the corrugated sheet 22, forming the upper cut 231 of the corrugated sheet 22, leaving the lower plane 222 as the second folded connection 246 of the corrugated sheet 22, and the lower blade 151 cuts the lower plane 222 and the slope surface 223 of the corrugated sheet 22, forming the lower cut 232 of the corrugated sheet 22, leaving the upper plane 221 as the first folded connection 245 of the corrugated sheet 22, as shown in fig. 5. The corrugated sheet 22 is cut by the cutting mechanism 15 and formed into a corrugated array 23. The spacing between an upper cutout 231 and an adjacent lower cutout 232 is defined as H.
The folding mechanism 16 includes at least two folding brush rollers, the two folding brush rollers have different rotating speeds, and the corrugated array 23 is N-folded and arranged by using the speed difference between the upper and lower folding brush rollers, as shown in fig. 5 and 6, and in addition, as shown in fig. 9, after the corrugated array 23 is N-folded and arranged, a honeycomb grid 24 is formed, the honeycomb grid includes a plurality of rows of corrugated core walls 241 arranged in sequence, the corrugated core wall 241 includes a first core wall 242, a connecting core wall 243 and a second core wall 244 connected in series, the first core wall 242 in the corrugated core wall 241 is connected with the first core wall 242 in the adjacent corrugated core wall 241 on one side, and the connection is a first folding connection portion 245 of the corrugated sheet 22; the second core wall 244 of a corrugated core wall 241 is connected to the second core wall 244 of an adjacent corrugated core wall 241 on the other side by a second folded connection 246 of the corrugated sheet 22.
The baking mechanism 17 comprises a crawler compound machine, the honeycomb grids 24 can be baked, cooled and shaped by the crawler compound machine, the corrugated core walls 241 are bonded and shaped by the crawler contact baking under the control of oil temperature to form an integrated honeycomb sandwich 25, and meanwhile, the upper surface skin 31 and the lower surface skin are respectively bonded and adhered to the upper end surface and the lower end surface of the honeycomb sandwich to form the sandwich composite plate 26.
Finally, the sandwich composite panel 26 is sawed using the size cutter 18 to meet the required size.
When the device capable of continuously producing the honeycomb sandwich and the sandwich composite plate is used, in order to meet the mutual connection of all the working procedures in the production of the honeycomb sandwich 25, the equipment parameter settings such as raw material extrusion amount, sheet rolling or traction speed, folding brush roller speed, crawler belt and plate discharging speed and the like are related and matched.
The extrusion amount Q is equal to the plate-out speed V1 × width W × area density, the sheet rolling or drawing speed V2 is equal to 2 × honeycomb sandwich thickness H/aperture R × plate-out speed V1, the folding brush roller speed is adjusted according to different sheet materials, the linear speed of the upper folding brush roller is greater than that of the lower folding brush roller, the rigid material needs to be increased by the speed difference to provide larger folding force, the linear speed of the lower folding brush roller is greater than three times of the plate-out speed V1, the speed difference formed by the sheet rolling or drawing speed V2 and the plate-out speed V1 provides the transverse force for rising or falling of each corrugated array along the end-to-end connection part, the mutually interfered upper and lower folding brush rollers provide the longitudinal force along the folding line direction, so that folding is smoother, the speed difference simultaneously makes honeycomb core units more closely arranged, in addition, the upper blade 152, the lower blade and the size cutting knife 18 are used, the heat cutting knife blade is superior to the common oil temperature, the convex groove or the groove of the blade is prevented from cutting into the honeycomb sandwich board, the honeycomb core plate is prevented from being deformed, the heat absorption of the honeycomb sandwich plate, the honeycomb sandwich structure is prevented from being damaged, the honeycomb sandwich structure is prevented from being deformed, and the honeycomb sandwich panel is prevented from being damaged.
The honeycomb sandwich and the sandwich composite board manufactured by using the device capable of continuously producing the honeycomb sandwich and the sandwich composite board comprise a honeycomb grid 24, an upper surface skin 31 compounded at the upper end of the honeycomb grid 24 and a lower surface skin compounded at the lower end of the honeycomb grid 24.
The honeycomb lattice 24 includes a plurality of rows of corrugated core walls 241 arranged in sequence, the corrugated core walls 241 are corrugated plates, each corrugated core wall 241 includes a first core wall 242, a connecting core wall 243, and a second core wall 244 connected in series, the first core wall 242 of the corrugated core wall 241 is connected to the first core wall 242 of the adjacent corrugated core wall 241 on one side and serves as a first folding joint 245, and the second core wall 244 of the corrugated core wall 241 is connected to the second core wall 244 of the adjacent corrugated core wall 241 on the other side and serves as a second folding joint 246.
Each of the corrugated core walls 241 arranged in sequence is formed by folding the corrugated array 23 in an N-shape, the corrugated array 23 is formed by cutting the corrugated sheet 22, and the corrugated sheet 22 includes an upper plane 221, a lower plane 222, and a slope 223 connected in series. The corrugated array has upper cuts 231 and lower cuts 232 which are alternately distributed up and down in succession, and as described above, the corrugated array 23 is formed by cutting the corrugated sheet 22 through the cutting mechanism 15, specifically, the upper cuts cut off the upper flat surfaces 221 and the slope surfaces 223 of the corrugated sheet 22, leaving the lower flat surfaces 222 as the second folding connection portions 246; the lower cut cuts off the lower flat surface 222 and the slope surface 223 of the corrugated sheet 22, leaving the upper flat surface 221 as the first folding connection 245.
More preferably, the upper skin and the lower skin are one of a thermoplastic resin sheet, a thermoplastic resin coil, a glass fiber reinforced sheet, a glass fiber reinforced coil, a metal sheet, and a metal coil.
In addition, the device for continuously producing the honeycomb sandwich and the sandwich composite plate is used for manufacturing the honeycomb sandwich and the sandwich composite plate by a specific method, namely, extruding the casting sheet 21, pressing the casting sheet 21 into the corrugated sheet 22, cutting, N-folding, baking, cooling and shaping the corrugated sheet 22 to form the honeycomb sandwich 25 with a honeycomb net structure, and then covering and pasting the upper and lower surface skins on the upper and lower end surfaces of the honeycomb sandwich to form the sandwich composite plate 26.
Specifically, the method comprises the following steps:
s1, extruding the cast sheet 21 of thermoplastic resin on-line by a feeding mechanism.
S2, the forming roller mechanism 12 receives the casting sheet 21, and the forming roller presses the casting sheet into the corrugated sheet 22; the inside of the forming roller is provided with a cooling water passage or a heating member, that is, the cast sheet 21 of the thermoplastic resin can be rolled by using the cooled forming roller, or the coil is extruded in advance and directly rolled by using the heated forming roller. The distance between the two forming rollers is adjustable.
S3, the corrugated sheet includes an upper plane, a lower plane and a slope surface connected in series, the upper blade 152 edge cuts the upper plane 221 and the slope surface 223, the lower blade 151 edge cuts the lower plane 222 and the slope surface 223, thereby cutting the corrugated sheet 22 into the corrugated array 23, the corrugated array 23 having upper cuts 231 and lower cuts 232 alternately distributed up and down in series.
S4, changing each of the corrugated arrays 23 connected to each other from horizontal to vertical by the mutually interfering folding brush rollers, the caterpillar tracks make up the corrugated arrays 23 into a closely arranged honeycomb grid 24 in an N-folded arrangement.
And S5, baking the honeycomb grids 24 by a crawler compounding machine to form the integrated honeycomb sandwich 25.
And S6, adhering upper and lower skins to the upper and lower end surfaces of the honeycomb sandwich by a crawler-type compound machine to form the sandwich composite plate 26.
And S7, cutting the sandwich composite board 26.
More preferably, between step S2 and step S3, both sides of the corrugated sheet are cut with trim cutters distributed on both left and right sides, respectively, to remove excess burrs in the transverse direction.
Specifically, the device for continuously producing the honeycomb sandwich and the sandwich composite board is used, and the production method is specifically illustrated by the following three specific examples.
Example one
A PP hexagonal honeycomb core and a honeycomb sandwich board, the hexagonal honeycomb core: the aperture is 8mm, the thickness is 10mm, and the gram weight is 1000g/m2The gram weight of the glass fiber felt with the upper and lower surface skin is 600g/m2The gram weight of the adhesive film is 100g/m2The product has a width of 1200mm, a length of 1000mm, a thickness of 10mm and a gram weight of 2400g/m2A honeycomb sandwich panel. The honeycomb sandwich glass fiber board is widely used for the cover plate of the automobile trunk, and has the advantages of light weight, sound insulation, noise reduction, moisture resistance, mildew resistance, high compression strength and bending strength and low cost; the preparation method comprises the following steps:
s1, adopting a 90# single screw extruder, setting the productivity to be about 100kg/h, extruding and casting the thermoplastic polypropylene resin sheet with the width of 1300mm and the thickness of 0.35mm, and conveying the sheet between two forming rollers;
s2, carrying out thermoforming on the cast sheet of the thermoplastic resin by a half-hexagonal forming roller with cooling water, wherein the length of the side of a groove of the forming roller and the side of a convex groove of the forming roller is 4.62mm, and the traction speed of the corrugated sheet and the linear speed of the forming roller are set to be about 25 m/min;
s3, removing the transverse redundant unformed flash from the corrugated sheet, wherein the transverse cutter spacing is 1250mm, and the corrugated sheet can be recycled to an extrusion production line on line after being crushed;
s4, cutting the upper blade and the lower blade into the corrugated sheet from the upper surface and the lower surface respectively, wherein the depth of the hot knife is 3.8mm, the positions of the upper cut and the lower cut are circularly alternated, the upper cut is connected with the lower plane correspondingly, the lower cut is connected with the upper plane correspondingly, and each corrugated array is ensured to be connected end to end; the horizontal distance between the upper blade and the lower blade is 10 mm;
s5, changing each mutually connected corrugated array from horizontal to vertical through mutually interfered folding brush rollers with different rotating speeds, and forming the corrugated arrays into a tightly arranged honeycomb grid through a crawler belt according to N-shaped folding arrangement; the linear speed of the upper end folding brush roller is 70m/min, the linear speed of the lower end folding brush roller is 50m/min, and the linear speed of the crawler belt is 10 m/min;
s6, controlling the contact baking of the crawler belts by the oil temperature of each corrugated array in the honeycomb grid, cooling and bonding the corrugated arrays to form an integral honeycomb sandwich; the baking temperature is 200 ℃, the pressure is 8MPa, and the plate discharging speed is 10 m/min;
s7, g weight 600g/m2Glass fiber felt with gram weight of 100g/m2The adhesive film and the honeycomb sandwich five layers of the middle layer are respectively laminated and baked, cooled and shaped by a crawler-type compounding machine; the baking temperature is 200 ℃, the pressure is 8MPa, and the plate discharging speed is 10 m/min;
s8, pressing and sawing the plate to produce the hexagonal honeycomb sandwich composite plate with the width of 1200mm and the length of 1000 mm.
Example two
A glass fiber modified PP hexagonal honeycomb core and a honeycomb sandwich board, the hexagonal honeycomb core: the aperture is 8mm, the thickness is 15mm, and the gram weight is 1800g/m2The gram weight of the upper and lower epidermis prepreg tapes is 1000g/m2The gram weight of the adhesive film is 100g/m2The production width is 1000mm, the length is 2400mm, the thickness is 15mm, and the gram weight is 4000g/m2A honeycomb sandwich panel. The honeycomb sandwich glass fiber board is widely used for the box body of a logistics transport vehicle, and compared with the original iron plate, the honeycomb sandwich glass fiber board has the advantages of light weight, corrosion resistance, high compression and bending strength and low cost; the preparation method comprises the following steps:
s1, adopting a 90# single screw extruder, setting the productivity to be about 100kg/h, extruding and casting the thermoplastic glass fiber modified PP resin sheet with the width of 1100mm and the thickness of 0.35mm, and conveying the sheet between two forming rollers;
s2, carrying out thermoforming on the cast sheet of the thermoplastic resin by a half-hexagonal forming roller with cooling water, wherein the side length of a groove of the forming roller and a convex groove of the forming roller is 4.62mm, and the drawing speed of the corrugated sheet and the linear speed of the forming roller are set to be about 30 m/min;
s3, removing the transverse redundant unformed flash from the corrugated sheet, and recycling the corrugated sheet to an extrusion production line on line after crushing, wherein the distance between the trimming and cutting knives is 1050 mm;
s4, cutting the upper blade and the lower blade into the corrugated sheet from the upper surface and the lower surface respectively, wherein the depth of the hot knife is 3.8mm, the positions of the upper cut and the lower cut are circularly alternated, the upper cut is connected with the lower plane correspondingly, the lower cut is connected with the upper plane correspondingly, and each corrugated array is ensured to be connected end to end; the horizontal distance between the upper blade and the lower blade is 15 mm;
s5, changing each mutually connected corrugated array from horizontal to vertical through mutually interfered folding brush rollers with different rotating speeds, and forming the corrugated arrays into a tightly arranged honeycomb grid through a crawler belt according to N-shaped folding arrangement; the linear speed of the upper end folding brush roller is 90m/min, the linear speed of the lower end folding brush roller is 60m/min, and the linear speed of the crawler belt is 8 m/min;
s6, controlling the contact baking of the crawler belts through oil temperature to each corrugated array in the honeycomb grid, cooling and bonding the corrugated arrays to form an integral honeycomb sandwich; the baking temperature is 210 ℃, the pressure is 10MPa, and the plate discharging speed is 8 m/min;
s7, gram weight 1000g/m2Prepreg tape, gram weight 100g/m2The adhesive film is respectively laminated with the honeycomb sandwich of the middle layer by five layers and is baked, cooled and shaped by a crawler-type compound machine; the baking temperature is 220 ℃, the pressure is 10MPa, and the plate discharging speed is 8 m/min;
s8, pressing and sawing to produce the hexagonal honeycomb sandwich composite board with the width of 1000mm and the length of 2400 mm.
EXAMPLE III
A modified PP square honeycomb core and honeycomb sandwich board, square honeycomb core: the aperture is 10mm, the thickness is 20mm, and the gram weight is 1800g/m2The gram weight of the upper and lower epidermis modified PP sheet is 500g/m2The production width is 1000mm, the length is 1000mm, the thickness is 20mm, and the gram weight is 2800g/m2A honeycomb sandwich panel. The honeycomb sandwich board is widely used for logistics containers, and has the advantages of light weight, moisture resistance, mildew resistance, high compression strength, high bending strength, recyclability, easy forming and turning, and low cost; the preparation method comprises the following steps:
s1, adopting a 90# single screw extruder, setting the productivity to be about 60kg/h, extruding and casting the thermoplastic modified polypropylene resin sheet with the width of 1100mm and the thickness of 0.35mm, and conveying the sheet between two forming rollers;
s2, thermoforming the thermoplastic resin sheet by a half-square forming roller filled with cooling water to obtain a half-square corrugated sheet, wherein the side length of the forming roller groove and the forming roller convex groove is 10mm, and the linear speed is 20 m/min;
s3, removing the transverse redundant unformed flash from the corrugated sheet, and recycling the corrugated sheet to an extrusion production line on line after crushing, wherein the transverse cutter spacing is 1050 mm;
s4, cutting the upper blade and the lower blade into the corrugated sheet from the upper surface and the lower surface respectively, wherein the depth of the hot knife is 4.8mm, the positions of the upper cut and the lower cut are circularly alternated, the upper cut is connected with the lower plane correspondingly, the lower cut is connected with the upper plane correspondingly, and each corrugated array is ensured to be connected end to end; the horizontal distance between the upper blade and the lower blade is 20 mm;
s5, changing each mutually connected corrugated array from horizontal to vertical through mutually interfered folding brush rollers with different rotating speeds, and forming the corrugated arrays into a tightly arranged honeycomb grid through a crawler belt according to N-shaped folding arrangement; the linear speed of the upper end folding brush roller is 80m/min, the linear speed of the lower end folding brush roller is 60m/min, and the linear speed of the crawler belt is 5 m/min;
s6, controlling the contact baking of the crawler belts by the oil temperature of each corrugated array in the honeycomb grid, cooling and bonding the corrugated arrays to form an integral honeycomb sandwich; the baking temperature is 180 ℃, the pressure is 6MPa, and the plate discharging speed is 5 m/min;
s7, gram weight 500g/m2The modified PP sheets are respectively laminated with the middle honeycomb sandwich layer for three layers and are baked, cooled and shaped by a crawler compounding machine; the baking temperature is 200 ℃, the pressure is 6MPa, and the plate discharging speed is 5 m/min;
s8, pressing and sawing to produce the square honeycomb sandwich composite board with the width of 1000mm and the length of 1000 mm.
The corresponding schematic diagram of the change of the square honeycomb sandwich structure is shown in figure 8.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. A device capable of continuously producing honeycomb sandwich and sandwich composite board is characterized in that: comprises that
The forming roller mechanism (12) comprises two forming rollers which are oppositely arranged, and a sheet forming space is arranged between the two forming rollers;
a cutting mechanism (15) comprising at least one upper blade (152) and at least one lower blade (151), said upper blade (152) being arranged alternately with said lower blade (151), said upper blade (152) being arranged in parallel with an adjacent said lower blade (151);
a folding mechanism (16) comprising at least two folding brush rollers, the two folding brush rollers having different rotational speeds; and
a baking mechanism (17).
2. The apparatus of claim 1, wherein the apparatus is adapted for continuous production of cellular core and core composite panels, and comprises: the device also comprises a feeding mechanism, and the extrusion end of the feeding mechanism is connected with the feeding end of the forming roller mechanism (12).
3. The apparatus of claim 2, wherein the apparatus is adapted to continuously produce cellular core and core composite panels, and comprises: and forming roller convex grooves (121) and forming roller grooves (122) are arranged on each forming roller in a staggered mode, and the forming roller convex groove (121) of one forming roller is matched with the forming roller groove (122) corresponding to the other forming roller.
4. The apparatus according to any one of claims 1 to 3, wherein the apparatus is adapted to continuously produce cellular core and core composite panels, and comprises: shaping roller mechanism (12) with air-cooled equipment (13) and horizontal trimming cut-off knife subassembly (14) have been arranged in proper order between cutting mechanism (15), horizontal trimming cut-off knife subassembly (14) are including the side cut-off knife that distributes in the left and right sides.
5. The apparatus of claim 4, wherein the apparatus is adapted to continuously produce cellular core and core composite panels, and comprises: the baking mechanism (17) comprises a crawler-type compound machine.
6. The apparatus of claim 5, wherein the apparatus is adapted to continuously produce cellular core and core composite panels, and comprises: the crawler-type compound machine further comprises a size cutter (18) positioned at the output end of the crawler-type compound machine.
7. A honeycomb core and a core composite board manufactured by using the apparatus for continuously manufacturing the honeycomb core and the core composite board according to any one of claims 1 to 6, characterized in that: comprises that
A honeycomb grid (24) comprising a plurality of rows of corrugated core walls (241) arranged in sequence, wherein the corrugated core walls (241) are corrugated plates, the corrugated core walls (241) comprise a first core wall (242), a connecting core wall (243) and a second core wall (244) which are continuously connected, the first core wall (242) in the corrugated core wall (241) is connected with the first core wall (242) in the adjacent corrugated core wall (241) at one side and serves as a first folding connection part (245), the second core wall (244) in the corrugated core wall (241) is connected with the second core wall (244) in the adjacent corrugated core wall (241) at the other side and serves as a second folding connection part (246);
an upper skin (31) compounded on the upper end of the honeycomb grid (24); and
a lower skin compounded at the lower end of the honeycomb grid (24).
8. The cellular sandwich and sandwich composite panel of claim 7, wherein: each corrugated core wall (241) arranged in sequence is formed by folding a corrugated array (23) according to an N shape, the corrugated array (23) is formed by cutting a corrugated sheet (22), and the corrugated sheet (22) comprises an upper plane (221), a lower plane (222) and a slope surface (223) which are connected in series.
9. The cellular sandwich and sandwich composite panel of claim 8, wherein: the corrugated array is provided with upper cuts (231) and lower cuts (232) which are continuously and alternately distributed up and down;
the upper cut (231) cuts off an upper plane (221) and a slope surface (223) of the corrugated sheet (22), leaving a lower plane (222) as the second folded connection (246);
the undercut (232) severs the lower flat surface (222) and the sloped surface (223) of the corrugated sheet (22), leaving an upper flat surface (221) as the first fold connection (245).
10. The cellular sandwich and sandwich composite panel according to any one of claims 7 to 9, characterized in that: the upper surface skin and the lower surface skin are one of thermoplastic resin sheets, thermoplastic resin coiled materials, glass fiber reinforced sheet materials, glass fiber reinforced coiled materials, metal sheets and metal coiled materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921649054.5U CN211031532U (en) | 2019-09-29 | 2019-09-29 | Honeycomb sandwich, sandwich composite board and device capable of continuously producing honeycomb sandwich and sandwich composite board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921649054.5U CN211031532U (en) | 2019-09-29 | 2019-09-29 | Honeycomb sandwich, sandwich composite board and device capable of continuously producing honeycomb sandwich and sandwich composite board |
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| CN211031532U true CN211031532U (en) | 2020-07-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112078218A (en) * | 2020-09-04 | 2020-12-15 | 武汉美术新型建材有限公司 | Three-dimensional aluminum core composite board production line and three-dimensional aluminum core composite board produced by same |
| CN112123829A (en) * | 2020-09-07 | 2020-12-25 | 张家港市帝达机械有限公司 | Forming equipment for stacking hexagonal honeycomb plates |
-
2019
- 2019-09-29 CN CN201921649054.5U patent/CN211031532U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112078218A (en) * | 2020-09-04 | 2020-12-15 | 武汉美术新型建材有限公司 | Three-dimensional aluminum core composite board production line and three-dimensional aluminum core composite board produced by same |
| CN112123829A (en) * | 2020-09-07 | 2020-12-25 | 张家港市帝达机械有限公司 | Forming equipment for stacking hexagonal honeycomb plates |
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