CN110344580B - Composite hollow grid-like structure plate and manufacturing method thereof - Google Patents
Composite hollow grid-like structure plate and manufacturing method thereof Download PDFInfo
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- CN110344580B CN110344580B CN201910610165.3A CN201910610165A CN110344580B CN 110344580 B CN110344580 B CN 110344580B CN 201910610165 A CN201910610165 A CN 201910610165A CN 110344580 B CN110344580 B CN 110344580B
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- 239000002131 composite material Substances 0.000 title claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 114
- 239000000835 fiber Substances 0.000 claims abstract description 29
- 239000010410 layer Substances 0.000 claims description 191
- 239000004033 plastic Substances 0.000 claims description 142
- 229920003023 plastic Polymers 0.000 claims description 142
- 238000007493 shaping process Methods 0.000 claims description 79
- 239000002344 surface layer Substances 0.000 claims description 38
- 210000003850 cellular structure Anatomy 0.000 claims description 29
- 238000001816 cooling Methods 0.000 claims description 28
- 238000000465 moulding Methods 0.000 claims description 25
- 239000003365 glass fiber Substances 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 24
- 238000000576 coating method Methods 0.000 claims description 22
- 239000011248 coating agent Substances 0.000 claims description 21
- 238000010030 laminating Methods 0.000 claims description 18
- 238000001125 extrusion Methods 0.000 claims description 17
- 238000007664 blowing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 238000005253 cladding Methods 0.000 claims description 9
- 239000003063 flame retardant Substances 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 9
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 2
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- 239000010959 steel Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
- E04G9/05—Forming boards or similar elements the form surface being of plastics
Abstract
The invention provides a composite hollow grid-shaped structural plate and a manufacturing method thereof. So that the strength of the present invention is higher in the case of the same sectional area than in the prior art. The cross-sectional area of the present invention is smaller while ensuring consistent strength, so that the weight of the present invention can be reduced. The two side ribs provide main supporting force, so that the back rib is simulated to be used, and the number of reinforcing members in construction is reduced. The manufacturing method adopts a composite production process, ensures the whole continuity of the continuous fibers, and is not sheared by the engagement of the screw as in the prior art. By adopting the manufacturing method, the structure is simple and easy to adjust, the width can be customized by the die, and the length direction can be cut at will.
Description
Technical Field
The invention relates to the field of building templates, in particular to a composite hollow grid-shaped structural plate and a manufacturing method thereof.
Background
The structural building template has the following main advantages: 1. modularized and standardized manufacturing, and simple connection. And the construction and installation are carried out according to the drawing, and the worker can easily get up. 2. Due to the structural design, the reinforcing and opposite pulling quantity can be effectively reduced, the use cost is reduced, and the construction efficiency is improved. 3. The turnover times are high, and the molding effect is excellent. The existing structural templates in the market are mainly divided into: steel templates, aluminum templates, plastic steel templates, and plastic templates.
The steel form is heavy, and the specification is restricted, surpasses the single unable transport of steel form of 1 meter size, and need periodic cleaning and maintenance, leads to the cost high.
The aluminum templates are produced by adopting the pultrusion type main board, and the assembly and welding of accessories are carried out subsequently, so that the aluminum templates are high in manufacturing cost, high in popularization difficulty and easy to lose. Regular cleaning and maintenance are needed, and the maintenance cost and the process are relatively complicated.
The rib part of the plastic-steel template is made of metal, and the panel is made of plastic and wood plates through integral assembly. The special-shaped rib has complicated processing technology, and because of processing errors and structural limitations, a bonding line is arranged between the panel part and the rib part, the molding effect is inferior to that of one-step molding of the surface layer, and whether the scheme template is adopted or not is required to be adopted according to the requirements of a construction site on the molding surface.
The plastic template is mainly divided into injection molding and compression molding, and has the defects of fixed product specification, and the newly increased specification needs to be opened with a new mold, so that the development cost is high.
Metal-based structural panels have the disadvantage: heavy weight, difficult maintenance, high cost and difficult processing.
Plastic structural panels have the disadvantages: the product specification is fixed, and different specifications need to be manufactured by independently designing a die.
Disclosure of Invention
The invention aims to solve the technical problems of providing a composite hollow cellular structural plate and a manufacturing method thereof, and the composite hollow cellular structural plate is manufactured by a pultrusion process, so that the die is simple in structure and low in cost, the manufacturing period of the die can be shortened, and besides the standard width, the die can be cut and assembled at will in the length direction, so that the requirements of different specifications of wall sizes are met, and a layer of continuous fibers are compounded to increase the rigidity of a product, reduce the weight of the product and reduce the cost.
The invention is realized in the following way: a composite hollow cellular structure board comprises a plastic filling layer, a first reinforcing layer and a plastic surface layer; the plastic filling layer comprises a substrate; side ribs are symmetrically arranged at two ends of the substrate, and each side rib is perpendicular to the substrate; the base plate and the side ribs at two sides are integrated and are of a hollow grid structure; the first reinforcing layer comprises a first base layer, and a plurality of first continuous fibers are arranged on the first base layer; the first reinforcing layer is tightly attached to the surface of the plastic filling layer and wraps the plastic filling layer; the plastic surface layer is tightly attached to the surface of the first reinforcing layer and wraps the first reinforcing layer.
Further, a middle reinforcing rib is arranged at the middle position of the base plate; the middle reinforcing rib and the side rib are positioned on the same side of the base plate and are parallel to each other; the middle reinforcing rib and the base plate are also integrated and are of a hollow grid structure.
Further, the fiber reinforced plastic comprises a second reinforcing layer, wherein the second reinforcing layer comprises a second base layer, and a plurality of second continuous fibers are arranged on the second base layer; every the left and right sides face and the preceding terminal surface of limit rib and middle stiffening rib are wrapped up respectively have the second enhancement layer, and position order is from inside to outside in proper order: the plastic filling layer, the second reinforcing layer, the first reinforcing layer and the plastic surface layer, or the plastic filling layer, the first reinforcing layer, the second reinforcing layer and the plastic surface layer.
Further, the plurality of second continuous fibers are arranged in a transverse and longitudinal direction.
Further, the first reinforcing layer and the second reinforcing layer are continuous glass fiber prepreg tapes.
Further, the plurality of first continuous fibers are arranged in a transverse and longitudinal direction.
Further, a plurality of mounting holes are symmetrically formed in the two side ribs respectively.
The invention also provides a manufacturing method of the composite hollow cellular structure plate, which comprises the following steps:
step S1, extruding a plastic filling layer;
s2, shaping the plastic filling layer;
s3, heating the first reinforcing layer and the second reinforcing layer which are positioned on the left-right direction side surface and the front end surface of the plastic filling layer, and then pressing and bonding the heated first reinforcing layer and the heated second reinforcing layer into a first whole;
s4, heating the first whole;
s5, folding the heated first whole, and matching the shape of the side ribs and the middle reinforcing ribs on two sides of the plastic filling layer after folding the groove;
s6, heating the plastic filling layer, the first whole after the groove folding and the first reinforcing layer corresponding to the rear end face of the plastic filling layer, and then pressing and laminating the first whole to form a second whole;
step S7, extruding a plastic surface layer; then wrapping the plastic surface layer and the second whole into a third whole;
s8, shaping the third whole;
and S9, cutting the shaped third whole to obtain a final finished product.
Further, the heating temperature in the step S3 is 150-200 ℃; the pressure of the pressurization is as follows: 0.1 to 0.6mpa.
Further, the heating temperature in the step S6 is: 140-200 ℃; the pressure of the pressurization is as follows: 0.1 to 0.6mpa.
The invention has the following advantages: (1) The first reinforcing layer is reinforced by adopting continuous fibers, and is embedded into the template through a composite process, so that the first reinforcing layer is fused into a whole, and the product performance is improved. So that the strength of the present invention is higher in the case of the same sectional area than in the prior art. The cross-sectional area of the present invention is smaller while ensuring consistent strength, so that the weight of the present invention can be reduced.
(2) The first reinforcing layer is reinforced by adopting continuous fibers, so that the flexural modulus is greatly improved, the impact resistance is effectively improved, the rebound resilience is greatly improved, and the service life is prolonged.
(3) And the two side ribs provide main supporting force to simulate the use of the back rib, so that the number of reinforcing members in construction is reduced.
(4) The plastic filling layer adopts a hollow structure, and compared with the prior art which adopts a solid core plate or a metal template, the plastic filling layer has lighter weight.
(5) Compared with the existing wood mould, the composite hollow grid-shaped structural plate is not easy to absorb water and expand, and the surface is not easy to crack or bulge, so that the service life is prolonged, the flatness of the surface of the poured concrete is improved, and the quality is improved.
(6) The plastic is adopted for manufacturing, the surface smoothness is high, the plastic is integrally formed, and the pouring forming effect is better than that of a wood template. The surface is smooth, so that the use of a release agent and the times of manually cleaning the surface cement can be effectively reduced, and the use cost is reduced.
(7) The composite hollow cellular structure board is made of plastic, can be recycled, has recovery residual values superior to those of wood templates, can be cut at will, can be folded and bent, and has plasticity due to the wood boards.
(8) The manufacturing method of the invention adopts a pultrusion production process to ensure the whole continuity of the continuous fiber, and the continuous fiber is not sheared by the occlusion of a screw as in the prior art.
(9) By adopting the manufacturing method, the structure is easy to adjust, the width can be customized by the die, and the length direction can be cut at will.
Drawings
The invention will be further described with reference to examples of embodiments with reference to the accompanying drawings.
Fig. 1 is a front view of a composite hollow cellular structure panel according to the present invention.
Fig. 2 is a side view of a composite hollow cellular structure panel according to the present invention.
Fig. 3 is a bottom view of a composite hollow cellular structure panel according to the present invention.
Fig. 4 is a partially enlarged schematic view a in fig. 3.
Fig. 5 is a partially enlarged schematic view B in fig. 3.
Fig. 6 is a perspective view of a composite hollow cellular structure panel according to the present invention.
Fig. 7 is an exploded view showing the installation effect of the composite hollow cellular structure plate according to the present invention.
Fig. 8 shows an embodiment of the arrangement of the first continuous fibers or the second continuous fibers according to the present invention.
Fig. 9 shows a second embodiment of the arrangement of the first continuous fibers or the second continuous fibers according to the present invention.
Fig. 10 is a front view of a production line of the manufacturing method according to the present invention.
Fig. 11 is a top view of fig. 10.
Fig. 12 is a flow chart of a manufacturing method according to the present invention.
FIG. 13 is a schematic cross-sectional view of an extrusion die for a plastic filled layer according to the present invention.
Fig. 14 is a schematic cross-sectional view of a first monolith according to the present invention.
Fig. 15 is a schematic cross-sectional view of a first whole of the present invention after folding.
Fig. 16 is a schematic cross-sectional view of a second monolith according to the present invention.
Fig. 17 is a schematic structural diagram of a shaping mold for a plastic filling layer according to the present invention.
Fig. 18 is a schematic top view of an overmold of the present disclosure.
Fig. 19 is a schematic front view of an overmold of the present disclosure.
FIG. 20 is a schematic view of the plastic filling layer and the second whole covered by the C-C section of FIG. 19.
Fig. 21 is a schematic structural diagram of a second shaping mold of the plastic filling layer according to the present invention.
Fig. 22 is a schematic view of a hollow lattice structure according to a second embodiment of the present invention.
Fig. 23 is a schematic view of a third embodiment of a hollow lattice structure according to the present invention.
In the figure: 100. composite hollow space-shaped flat plate 110, plastic surface layer 120, first reinforcing layer 121, base layer 122, continuous fiber 130 and plastic filling layer; 1301. upper end face, 1302, lower end face, 1303, left side face, 1304, right side face, 1305, front end face, 131, base plate, 132, side rib, 1321, mounting hole, 133, middle reinforcing rib, 134, hollow lattice shape, 1341, two sides of lattice stress direction;
1. a single screw extruder, 2, a hydraulic net changer, 3, an extrusion die head, 31, a die outer frame, 32, a forming insert, 33, a filling layer forming cavity, 4, a shaping die, 41, a cooling upper die, 42, a cooling lower die, 43, a cooling left die, 44, a cooling right die, 45, a shaping cavity, 5, a shaping device, 5, a tractor, 7, a first group of unreeling frames, 8, a second group of unreeling frames, 9, a limit roller, 10, a two-channel oven, 11, a two-roller laminating device, 12, a single-channel oven, 13, a groove folding device, 14 and a third group of unreeling frames, 15, an unreeling frame platform, 16, a three-channel oven, 17, a laminating device, 18, a double-screw extruder, 19, a second hydraulic screen changer, 20, a cladding mould, 201, a guiding device, 202, a mould body, 2021, a forming cavity, 21, a second forming mould, 22, a second forming device, 221, a cooling upper mould, 222, a cooling lower mould, 223, a cooling left mould, 224, a cooling right mould, 225, a forming cavity, 23, a second tractor, 24, a cutting machine, 25, a longitudinal conveying device, 26 and a transverse conveying device;
d1, the width of the composite hollow latticed structural plate, D2, the width of the side ribs coated with the first reinforcing layer and the second reinforcing layer, D3, the thickness of the side ribs coated with the first reinforcing layer and the second reinforcing layer, D4, the thickness of the base plate coated with the first reinforcing layer and the second reinforcing layer, D5, the width of the middle reinforcing ribs coated with the first reinforcing layer and the second reinforcing layer;
200. the end socket plate, 2001, a clamping block, 2002, a containing groove, 2003 and a connecting groove; 300. and a connecting handle.
Detailed Description
Please refer to fig. 1 to 23.
The invention provides a composite hollow cellular structure board 100, which comprises a plastic filling layer 130, a first reinforcing layer 120 and a plastic surface layer 110; the plastic filling layer 130 includes a substrate 131; two ends of the substrate are symmetrically provided with side ribs 132, and each side rib 132 is perpendicular to the substrate 131; the base plate 131 and the side ribs 132 on both sides are integrated and have a hollow grid structure; the first reinforcing layer 120 includes a first base layer 121, and a plurality of first continuous fibers 122 are disposed on the first base layer 121; the first reinforcing layer 120 is tightly attached to the surface of the plastic filling layer 130, and wraps the plastic filling layer 130; the plastic surface layer 110 is tightly adhered to the surface of the first reinforcing layer 120, and wraps the first reinforcing layer 120. The upper end face 1301 and the lower end face 1302 of the plastic filling layer 130 do not need to be wrapped with the first reinforcing layer 120 and the plastic surface layer 110, and the other surfaces are wrapped with the first reinforcing layer 120 and the plastic surface layer 110.
The first reinforcing layer 120 is reinforced by adopting continuous fibers, and is embedded into the template through a composite process, so that the first reinforcing layer is fused into a whole, and the product performance is improved. So that the strength of the present invention is higher in the case of the same sectional area than in the prior art. The cross-sectional area of the present invention is smaller while ensuring consistent strength, so that the weight of the present invention can be reduced. The first reinforcing layer 120 is reinforced by continuous fibers, so that the flexural modulus is greatly improved, the impact resistance is effectively improved, the rebound resilience is greatly improved, and the service life is prolonged.
In use, the two side ribs 132 provide a main supporting force to simulate the use of the back rib, thereby reducing the number of reinforcements in construction.
The plastic filling layer 130 of the present invention is hollow and is lighter than the prior art, which uses a solid core plate.
Compared with the existing wood mold, the composite hollow cellular structure plate 100 is not easy to absorb water and expand, and the surface is not easy to crack or bulge, so that the service life is prolonged, the flatness of the surface of the poured concrete is improved, and the quality is improved. The plastic is adopted for manufacturing, the surface smoothness is high, the plastic is integrally formed, and the pouring forming effect is better than that of a wood template. The surface is smooth, so that the use of a release agent and the times of manually cleaning the surface cement can be effectively reduced, and the use cost is reduced. The composite hollow cellular structure board 100 is made of plastic, can be recycled, and has recovery residual values superior to those of wood templates.
In a specific implementation, the plastic surface layer 110 may be made of a wear-resistant and flame-retardant material, so that potential safety hazards of a construction site can be effectively eliminated. For example, flame retardant pp plastic materials are used, or flame retardants are added to common plastic materials. So that the plastic facing 110 acts as a flame retardant layer.
The plastic surface layer 110 serves as a flame retardant layer: providing the outer surface with flame retardance, wear resistance and smoothness;
the first reinforcing layer 120: providing overall performance, bending, stretching, impact;
the plastic filling layer 130: provides the whole compressive strength and is hollow treated to reduce the weight.
In a preferred embodiment, the method comprises: the middle position of the base plate 131 is also provided with a middle reinforcing rib 133; the middle reinforcing rib 133 and the side rib 132 are positioned on the same side of the base plate 131 and are parallel to each other; the middle reinforcing rib 133 and the base plate 131 are also integrated and have a hollow lattice structure. The intermediate reinforcing ribs 133 reinforce the base plate 131 to increase the strength of the composite hollow cellular-structure plate 100. In an implementation, the hollow lattice structure 134 is a rectangular lattice 134, a triangular lattice 134, or a honeycomb lattice 134. In other embodiments, it may also be manufactured in other shapes, such as other polygons or profiled structures. In the embodiment shown in fig. 3-5, a rectangular grid 134. A second embodiment shown in fig. 22 is a schematic view of a honeycomb cell 134. The third embodiment shown in fig. 23 is a schematic view of an elliptical lattice 134.
The second reinforcing layer 140 further comprises a second base layer 141, and a plurality of second continuous fibers 142 are arranged on the second base layer 141; each of the side ribs 132 and the middle reinforcing rib 133 has a left side surface 1303,1304 and a right side surface 1305 wrapped with the second reinforcing layer, and the positions thereof are sequentially from inside to outside: the plastic filler layer 130, the second reinforcing layer 140, the first reinforcing layer 120, the plastic face layer 110, or the plastic filler layer 130, the first reinforcing layer 120, the second reinforcing layer 140, the plastic face layer 110. The second reinforcing layer 140 further reinforces the two side ribs 132, improves bending, stretching and impact properties of the two side ribs, and improves supporting strength of the two side ribs 132 and the middle reinforcing rib 133.
The second continuous fibers 142 are arranged in a transverse and longitudinal direction. The adoption of the transverse and longitudinal arrangement does not need to distinguish the length direction or the width direction in the use process, the prior art is certainly more convenient to use because the short fiber segments are used for manufacturing, and the directions of the length and the width are required to be distinguished when the invention is used. In other embodiments, the second continuous fibers 142 may be arranged in other ways, such as in a diagonal cross arrangement in a plane, in a triangular shape in a plane, in other polygonal shapes, or in a profiled arrangement.
The first reinforcing layer 120 and the second reinforcing layer 140 are continuous glass fiber prepreg tapes. The continuous glass fiber prepreg tape is made of the existing material, and is directly purchased in the market, so that the material is convenient to obtain.
The first continuous fibers 122 are arranged in a transverse and longitudinal direction. The adoption of the transverse and longitudinal arrangement does not need to distinguish the length direction or the width direction in the use process, the prior art is certainly more convenient to use because the short fiber segments are used for manufacturing, and the directions of the length and the width are required to be distinguished when the invention is used. In other embodiments, the first continuous fibers 122 may be arranged in other ways, such as in a diagonal cross arrangement in a plane, in a triangular shape in a plane, in other polygonal shapes, or in a profiled arrangement.
A plurality of mounting holes 1321 are symmetrically formed in the two side ribs 132, respectively. The mounting holes 1321 are used to connect two of the composite hollow lattice plates 100.
Examples: as shown in fig. 7, the upper and lower ends of the composite hollow cellular structure plate 100 are respectively sealed with a sealing plate 200. The head plates are used for blocking the upper end and the lower end so as to protect the upper end and the lower end, prevent the products from being broken and from leaking slurry when falling down, and simultaneously provide the connecting structures of the upper end and the lower end. Two symmetrical clamping blocks 2001 are convexly arranged at the lower end of the end socket plate 200, grooves formed by the side ribs 132 and the middle reinforcing ribs 133 are matched with the clamping blocks 2001, the two clamping blocks 2001 are directly provided with an accommodating groove 2002, the middle reinforcing ribs 133 are embedded into the accommodating groove 2002, the clamping blocks 2001 are embedded into the grooves, so that the end socket plate is mounted at the end part of the composite hollow grid-shaped structural plate 100, and the left side face, the right side face and the rear end face of the end socket plate 200 are respectively corresponding to and flush with the left side face, the right side face and the rear end face of the composite hollow grid-shaped structural plate 100. The upper ends of the end plates 200 are provided with connecting grooves 2003, two adjacent composite hollow latticed structural plates 100 are connected through an embedded block (not shown), the shape and the size of the embedded block (not shown) are the same as those of the connecting grooves 2003, and the length of the embedded block (not shown) in the up-down direction is equal to the depth of the connecting grooves 2003, so that the upper end plate 200 and the lower end plate 200 are embedded through the embedded block (not shown), and the upper end plate 100 and the lower end plate 100 are connected and fixed. And two adjacent composite hollow latticed plates 100 in the left-right direction are fixedly connected through the connecting handle 300, the diameter of the connecting handle 300 is equal to the inner diameter of the mounting hole 1321, and the length is equal to twice the thickness of the side rib 132 in the left-right direction, so that the connecting handle 300 is embedded into the two mounting holes 1321 of the two adjacent composite hollow latticed plates 100 in the left-right direction to fixedly connect them. Of course, in other embodiments, the connecting handle 300 may be replaced by a bolt and a nut, and the connecting handle may be fastened by passing the bolt through the mounting holes 1321 of the adjacent side ribs 132 of the adjacent two of the composite hollow latticed plates 100 and then fastening the connecting handle with the nut. And finally assembling the composite hollow cellular-shaped structure plates 100 in the up-down and left-right directions to form a template, and finally erecting a reinforcement according to the prior art.
The invention also provides a manufacturing method of the composite hollow cellular structure plate, which comprises the following steps:
step S1, extruding the plastic filling layer 130;
step S2, shaping the plastic filling layer 130;
step S3, heating the first reinforcing layer 120 and the second reinforcing layer 140 located on the lateral side and the front end face of the plastic filling layer 130, and then pressing and bonding the heated first reinforcing layer 120 and second reinforcing layer 140 into a first whole 150;
step S4, heating the first whole 150;
s5, folding the heated first whole 150, and matching the folded side ribs 132 and the middle reinforcing ribs 133 on both sides of the plastic filling layer 130;
step S6, heating the plastic filling layer 130, the first whole 150 after folding, and the first reinforcing layer 120 corresponding to the rear end surface of the plastic filling layer 130, and then pressing and bonding the first whole to form a second whole 160;
step S7, extruding the plastic surface layer 110; then wrapping the plastic facing 110 and the second monolith 160 into a third monolith;
s8, shaping the third whole;
and S9, cutting the shaped third whole to obtain a final finished product.
In a preferred embodiment, the following embodiment: the heating temperature in the step S3 is 150-200 ℃; the pressure of the pressurization is as follows: 0.1 to 0.6mpa.
The heating temperature in the step S6 is as follows: 140-200 ℃; the pressure of the pressurization is as follows: 0.1 to 0.6mpa.
Example 1
The production line of the manufacturing method comprises a single screw extruder 1, a hydraulic screen changer 2, an extrusion die head 3, a shaping die 4, a shaping device 5, a tractor 6, a first group of unreeling frames 7, a second group of unreeling frames 8, a limiting roller 9, a two-channel oven 10, a two-roller laminating device 11, a single-channel oven 12, a folding trough device 13, a third group of unreeling frames 14, an unreeling frame platform 15, a three-channel oven 16, a laminating device 17, a double screw extruder 18, a second hydraulic screen changer 19, a coating die 20, a second shaping die 21, a second shaping device 22, a second tractor 23, a cutter 24, a longitudinal conveying device 25 and a transverse conveying device 26;
step S1, extruding the plastic filling layer 130; the plastic filling layer 130 is extruded through the single screw extruder 1, raw materials such as common plastic raw materials are added in the single screw extruder 1, a hydraulic screen changer 2 is installed at an extrusion outlet of the single screw extruder 1, impurities are filtered on the plastic raw materials, an extrusion die head 3 of the plastic filling layer 130 is installed at an outlet of the hydraulic screen changer 2, as shown in fig. 13, the shape of the filling layer 130 is molded through the extrusion die head 3, the extrusion die head 3 comprises a mold outer frame 31 and a molding insert 32 embedded in the mold outer frame 31 according to the prior art, and the molten plastic raw materials enter a filling layer molding cavity 33 between the mold outer frame 31 and the molding insert 32 through a runner, thereby molding the plastic filling layer 130. In a preferred embodiment, each molding insert 32 may further be provided with a blowing hole (not shown), the blowing holes (not shown) are communicated with the molding cavity, and the blowing holes (not shown) are connected to a blowing system (not shown); the blowing system blows air into the air blowing holes (not shown) and then blows the melted raw materials to the molding cavity, so that the hollow grid-shaped molding effect of the plastic filling layer 130 is ensured to be better. The model of the single screw extruder was SJ100.
Step S2, shaping the plastic filling layer 130; a shaping die 4 is disposed behind the outlet of the extrusion die 3, as shown in fig. 17, and in one embodiment of the shaping die 4, the shaping die 4 is used to shape the plastic filling layer 130 that has just been extruded, so as to prevent the plastic filling layer 130 from deforming and affecting the quality of the final product; the shaping die 4 is mounted on the shaping device 5, the shaping device 5 plays a supporting role, the shaping device 5 can be made into various shapes, for example, an existing iron table can also be directly adopted to be used as a supporting frame, so that the shaping die 4 and the extrusion die head 3 are positioned on the same horizontal plane, and the plastic filling layer 130 extruded from the extrusion die head 3 can be smoothly transited to the shaping die 4, and is kept smooth without bending;
as shown in fig. 17, the shaping mold 4 includes a split cooling upper mold 41, a cooling lower mold 42, a cooling left mold 43, a cooling right mold 44, and a shaping cavity 45, and the cooling shaping mold is provided with an air suction hole (not shown), is communicated with the shaping cavity 45, is connected with a vacuum pump in parallel, and performs vacuum suction on an uncooled shaping product. The shaping mould is internally provided with a waterway and is connected with a cold water machine to cool uncooled shaping products, the cooling principle is that a plastic filling layer transfers heat to the shaping mould through heat conduction, and the shaping mould 4 is cooled by cooling water circulation to take away heat, so that the plastic filling layer 130 in the shaping cavity 45 is cooled. The four cooling shaping dies can be opened and closed, so that the assembly and the use are convenient, and in specific implementation, the four cooling shaping dies can be connected and fixed by adopting bolts, so that the operation is convenient.
Step S3, heating the first reinforcing layer 120 and the second reinforcing layer 140 located on the lateral side and the front end face of the plastic filling layer 130, and then pressing and bonding the heated first reinforcing layer 120 and second reinforcing layer 140 into a first whole 150; as shown in fig. 14, it should be noted that this step applies heat and pressure to only the first reinforcing layer 120 and the second reinforcing layer 140. The first reinforcing layer 120 wrapped by the side surface and the front end surface in the left-right direction is separately wrapped with the first reinforcing layer 120 on the rear end surface of the plastic filling layer 130, so that the generation difficulty is reduced, and the generation and the manufacture are convenient;
a tractor 6 is disposed at the rear of the shaping mold 4, for example, an existing AF-600 tractor is adopted, and the shaped plastic filling layer 130 is pulled to a subsequent process by the tractor 6. A first group of unreeling frames 7 and a second group of unreeling frames 8 are sequentially arranged behind the traction machine 6, the first group of unreeling frames 7 and the second group of unreeling frames 8 are respectively provided with two unreeling frames, and the first reinforcing layers 120 are placed on the first group of unreeling frames; the second reinforcing layer 140 is placed on the second unreeling frame 8, and the sequence of the second reinforcing layer and the second reinforcing layer can be interchanged; in the specific implementation, the first reinforcing layer 120 and the second reinforcing layer 140 are both continuous glass fiber prepreg tapes 120 and have the same specification; a roll of continuous glass fiber prepreg tape 120 is placed on each unreeling rack; in each group of unreeling frames, one unreeling frame is used as a standby for ensuring continuous production, namely when the continuous glass fiber prepreg tape 120 of one unreeling frame is used up, the continuous glass fiber prepreg tape 120 on the standby unreeling frame is directly connected for use, a machine is not required to be stopped for waiting for replacing materials, and after the connection is completed, a new continuous glass fiber prepreg tape 120 on the used unreeling frame can be replaced, so that the unreeling frame is used as a standby for recycling;
a limiting roller 9, a two-channel oven 10 and a two-roller laminating device 11 are sequentially arranged behind the second group of unreeling frames 8; the limiting rollers 9 are arranged on the upper side and the lower side of the inlet of the two-channel oven 10 and are used for guiding and limiting the continuous glass fiber prepreg tape 120; one roll of continuous glass fiber prepreg tape 120 in each of the first set of unreeling frames 7 and the second set of unreeling frames 8 is drawn into the two-channel oven 10, and is respectively corresponding to one channel, and then is heated at the following temperature: the heating temperature is 150-200 ℃, so that the continuous glass fiber prepreg tape 120 is softened, and then the heated continuous glass fiber prepreg tape 120 is pulled to the two-roller laminating device 11 to be laminated into a first whole 150, wherein the pressure applied by the two-roller laminating device 11 is as follows: 0.1 to 0.6mpa.
Step S4, heating the first whole 150; be provided with single channel oven 12 at the rear of two roller laminating devices 11, pull the first whole 150 after laminating to the single channel oven 12 in heat for first whole 150 softens, makes things convenient for follow-up roll over the groove, and wherein the temperature of heating is: 140-200 ℃; the pressurizing pressure is 0.1-0.6 mpa;
step S5, folding the heated first whole 150, and matching the shapes of the side ribs 132 and the middle reinforcing ribs 133 on both sides of the plastic filling layer 130 after folding the groove, as shown in fig. 15; a groove folding device 13 is arranged at the rear of the single-channel oven 12, the first whole 150 is pulled out from the outlet of the single-channel oven 12 to the groove folding device 13 for groove folding, and the shapes of the first whole 150 after the groove folding are matched with the shapes of the side ribs 132 and the middle reinforcing ribs 133 at the two sides of the plastic filling layer 130, as shown in fig. 15;
step S6, heating the plastic filling layer 130, the first whole 150 after folding, and the first reinforcing layer 120 corresponding to the rear end surface of the plastic filling layer 130, and then pressing and bonding the first whole to form a second whole 160;
a coil placing frame platform 15 is arranged behind the slot folding device 13, a third group of coil placing frames 14 are arranged on the coil placing frame platform, two coil placing frames 14 are arranged on the third group of coil placing frames 14, one coil is used as standby, two coils of the first reinforcing layer 120 are placed, a continuous glass fiber prepreg tape 120 is also adopted, the coil placing frame platform 15 also plays a supporting role, for example, an existing iron table can be adopted, and the space below the iron table is used for a channel for pulling the first whole 150 and the plastic filling layer 130 after slot folding to the subsequent process; a three-way oven 16 is arranged behind the unreeling frame platform 15; then, the continuous glass fiber prepreg tape 120, the first whole 150 after being folded and the plastic filling layer 130 from the tractor 6 on one of the unreeling frames 14 of the third group are correspondingly drawn into three inlets of the three-channel oven 16, and then heated at the following temperature: the heating temperature is as follows: 140-200 ℃;
a laminating device 17 is arranged behind the three-channel oven 16, the heated continuous glass fiber prepreg tape 120, the first whole 150 after the folding groove and the plastic filling layer 130 are drawn to the laminating device 17, the continuous glass fiber prepreg tape 120 is attached to the rear end surface of the plastic filling layer 130, the first whole after the folding groove is attached to the front end surface and the plastic filling layer 130, and then the first whole, the second whole 160 is formed by attaching the three parts through the laminating device 17; the pressure of the bonding device 17 is 0.1 to 0.6mpa;
step S7, extruding the plastic surface layer 110; then wrapping the plastic facing 110 and the second monolith 160 into a third monolith;
in one embodiment: a coating mold 20 is arranged behind the laminating device 17; a double-screw extruder 18 is arranged beside the cladding mould, a second hydraulic screen changer 19 is arranged at the outlet of the double-screw extruder 18, the outlet of the second hydraulic screen changer is connected with the cladding mould 20, and the cladding mould 20 is used as a forming mould of the plastic surface layer 110 and also used as a mould for cladding a third whole; the molding of the plastic surface layer 110 and the coating of the third whole are integrated into one procedure, so that the time is saved and the occupied space is reduced; the twin-screw extruder adopts the existing AF-62 building block type twin-screw extruder; adding a flame-retardant pp plastic raw material into a double-screw extruder 18, melting the flame-retardant pp plastic raw material through the double-screw extruder 18, filtering by a second hydraulic screen changer 19, and extruding into a coating die 20; and drawing the second monolith 160 into the overmold 20 and then overmolding to form a third monolith; wherein the shape of the third whole is the same as the shape of the composite hollow cellular structure plate 100, but the third whole is in a continuous length state and is not cut according to the composite hollow cellular structure plate 100;
of course, it should be noted that, because the second integral body 160, which is just pre-bonded, and the plastic surface layer 110, which is just extruded, both have waste heat and are still in a softened state, the coating process can be directly performed by utilizing these characteristics, so that the energy consumption is reduced, and of course, in other embodiments, the coating and molding dies can be separated, and the molding is performed before the coating, however, the plastic surface layer needs to be heated and softened again, and the energy consumption is required to cause unnecessary waste when the plastic surface layer is reheated; the coating mold 20 serves as a molding mold for the plastic surface layer 110 and also serves as a mold for coating the pre-bonded semi-finished product with the plastic surface layer 110, and has two functions.
As shown in fig. 18-20, the overmold 20 includes a mold body 202, the mold body 202 having a molding cavity 2021 and a trapezoidal inlet 2022; the second body 160 enters the molding cavity 2021 from the trapezoid inlet 2022, the molten plastic surface layer 110 extruded from the twin-screw extruder 12 enters the molding cavity 2021 through a runner (not shown) of the coating mold 20 to coat the second body 160, meanwhile, the plastic surface layer 110 is molded through the molding cavity 2021, and the coating and the molding are performed simultaneously, so that time and energy are saved, the plastic surface layer 110 is not required to be molded in steps, and then the plastic surface layer 11 is heated again. The runner (not shown) is only required to be hermetically connected between the inlet and the outlet of the twin-screw extruder 12 and between the outlet and the molding cavity 2021, and the runner is not required to be specially provided according to the existing pultrusion die technology. In a specific implementation, guiding means 201, for example guiding wheels 201 or guiding rollers 201, may also be provided on both sides of the trapezoidal inlet 2022 for guiding the second whole 160.
Of course, in other embodiments, the extrusion die head of the plastic surface layer 110 and the die for coating the third whole may be separated, and the plastic surface layer 110 is extruded through the extrusion die head and then coated through the die for coating the third whole;
s8, shaping the third whole; a second shaping device 22 is arranged at the rear of the cladding mould 20 and is used as a supporting frame; a second shaping die 21 is arranged on the second shaping device 22; the third whole body after coating is drawn into a second shaping mould 21 for shaping; deformation is prevented from affecting the quality of the finished product;
as shown in fig. 21, the second shaping mold 22 has the same structure as the shaping mold 4, and the second shaping mold 22 also includes a cooling upper mold 221, a cooling lower mold 222, a cooling left mold 223, a cooling right mold 224, and a shaping cavity 225, and the second shaping mold 22 also has an air suction hole (not shown) that communicates with the shaping cavity 225 and is connected in parallel to a vacuum pump for vacuum suction of the uncooled shaping product. The second shaping die 22 is internally provided with a waterway and is connected with a water chiller to cool uncooled shaping products, the cooling principle is that the products are thermally conducted, heat is transferred to the shaping die, and the cooling water is used for circularly cooling the shaping die 22 to take away the heat, so that the products in the shaping cavity 225 are cooled. The four cooling shaping dies can be opened and closed, so that the assembly and the use are convenient, and in specific implementation, the four cooling shaping dies can be connected and fixed by adopting bolts, so that the operation is convenient.
And S9, cutting the shaped third whole to obtain a final finished product. A cutter 24 is provided behind the second shaping device 22; pulling the third whole to a cutter 24, and cutting the third whole according to the length of the composite hollow latticed structural plate 100 according to the use requirement, thereby obtaining a final finished product; and can be cut into different lengths, thus under the condition that the cross sections are the same, the composite hollow cellular structure plate 100 corresponding to different lengths can be continuously generated, the finished products with different lengths in the whole production process do not need to be shut down and replaced, the mould does not need to be designed to be molded corresponding to different moulds like an injection molding process, and the cost of the mould is saved; meanwhile, the time for stopping and replacing the die is saved, and the production efficiency is improved.
The whole production process is continuously generated, and the finished product is cut off only after being cut into finished products with different lengths.
In a specific implementation, a conveying device may be further arranged to convey the final finished product away, for example, a longitudinal conveying device 25 and a transverse conveying device 26 are respectively arranged at the rear of the cutting machine 24, and the finished product is conveniently placed at the rear through two directions of conveying, so that more time is available for placing the finished product. Of course, in other embodiments, the transverse or longitudinal conveying means may also be provided separately. Of course, a conveying device is not needed, and a worker directly takes out and places the finished product after cutting by the cutting machine.
In one embodiment, a composite hollow cellular structure panel 100 is specified as follows: d1 =600 mm, d2=30 mm, d3=65 mm, d4=15 mm, d5=30 mm. Of course, in other embodiments, D1 through D5 may have other dimensional values.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the invention, and that equivalent modifications and variations of the invention in light of the spirit of the invention will be covered by the claims of the present invention.
Claims (10)
1. A composite hollow cellular structure panel, characterized in that: comprises a plastic filling layer, a first reinforcing layer and a plastic surface layer; the plastic filling layer comprises a substrate; side ribs are symmetrically arranged at two ends of the substrate, and each side rib is perpendicular to the substrate; the base plate and the side ribs at two sides are integrated and are of a hollow grid structure; the first reinforcing layer comprises a first base layer, and a plurality of first continuous fibers are arranged on the first base layer; the first reinforcing layer is tightly attached to the surface of the plastic filling layer and wraps the plastic filling layer; the plastic surface layer is tightly attached to the surface of the first reinforcing layer and wraps the first reinforcing layer;
the middle position of the base plate is also provided with a middle reinforcing rib; the middle reinforcing rib and the side rib are positioned on the same side of the base plate and are parallel to each other; the middle reinforcing rib and the base plate are also integrated and are of a hollow grid structure;
the composite hollow cellular structure plate further comprises a second reinforcing layer, wherein the second reinforcing layer comprises a second base layer, and a plurality of second continuous fibers are arranged on the second base layer; every the left and right sides face and the preceding terminal surface of limit rib and middle stiffening rib are wrapped up respectively have the second enhancement layer, and position order is from inside to outside in proper order: the plastic filling layer, the second reinforcing layer, the first reinforcing layer and the plastic surface layer, or the plastic filling layer, the first reinforcing layer, the second reinforcing layer and the plastic surface layer;
the first reinforcing layer and the second reinforcing layer are continuous glass fiber prepreg tapes.
2. A composite hollow cellular structure panel according to claim 1, wherein: the second continuous fibers are arranged transversely and longitudinally.
3. A composite hollow cellular structure panel according to claim 1, wherein: the first continuous fibers are arranged transversely and longitudinally.
4. A composite hollow cellular structure panel according to claim 1, wherein: and a plurality of mounting holes are symmetrically formed in the two side ribs respectively.
5. A manufacturing method of a composite hollow latticed structural plate is characterized by comprising the following steps of: a method of making a composite hollow cellular structure panel as claimed in claim 1 comprising the steps of:
step S1, extruding a plastic filling layer;
s2, shaping the plastic filling layer;
s3, heating the first reinforcing layer and the second reinforcing layer which are positioned on the left-right direction side surface and the front end surface of the plastic filling layer, and then pressing and bonding the heated first reinforcing layer and the heated second reinforcing layer into a first whole;
s4, heating the first whole;
s5, folding the heated first whole, and matching the shape of the side ribs and the middle reinforcing ribs on two sides of the plastic filling layer after folding the groove;
s6, heating the plastic filling layer, the first whole after the groove folding and the first reinforcing layer corresponding to the rear end face of the plastic filling layer, and then pressing and laminating the first whole to form a second whole;
step S7, extruding a plastic surface layer; then wrapping the plastic surface layer and the second whole into a third whole; the step S7 specifically includes: adding a flame-retardant pp plastic raw material into a double-screw extruder, melting the flame-retardant pp plastic raw material through the double-screw extruder, filtering by a second hydraulic screen changer, and extruding into a coating die; pulling the second whole to a coating mould, and coating to form a third whole;
s8, shaping the third whole;
and S9, cutting the shaped third whole to obtain a final finished product.
6. A method of making a composite hollow cellular structure panel according to claim 5, wherein: the heating temperature in the step S3 is 150-200 ℃; the pressure of the pressurization is as follows: 0.1 to 0.6mpa.
7. A method of making a composite hollow cellular structure panel according to claim 5, wherein: the heating temperature in the step S6 is as follows: 140-200 ℃; the pressure of the pressurization is as follows: 0.1 to 0.6mpa.
8. A production line for producing the composite hollow cellular structure panel of claim 1, characterized in that: the device comprises a single screw extruder, wherein a hydraulic screen changer is arranged at an extrusion outlet of the single screw extruder, impurities are filtered on plastic raw materials, and an extrusion die head of a plastic filling layer is arranged at an outlet of the hydraulic screen changer;
setting a shaping die behind an outlet of the extrusion die head, shaping the plastic filling layer which is just extruded by the shaping die, wherein the shaping die is arranged on a shaping device which plays a supporting role, so that the shaping die and the extrusion die head are positioned on the same horizontal plane;
a traction machine is arranged at the rear of the shaping mould, the shaped plastic filling layer is drawn into a subsequent process by the traction machine, a first group of unreeling frames and a second group of unreeling frames are sequentially arranged at the rear of the traction machine, two unreeling frames are respectively arranged at the first group of unreeling frames and the second group of unreeling frames, the two groups of unreeling frames are respectively used for placing continuous glass fiber prepreg tapes, and a limiting roller, a two-channel oven and a two-roller laminating device are sequentially arranged at the rear of the second group of unreeling frames; the limiting rollers are arranged on the upper side and the lower side of an inlet of the two-channel oven and used for guiding and limiting the continuous glass fiber prepreg tape; a roll of continuous glass fiber prepreg tapes in the first group of unreeling frames and the second group of unreeling frames are respectively pulled into a two-channel oven for heating, and the heated continuous glass fiber prepreg tapes are attached into a first whole by a two-roller attaching device;
a single-channel oven for heating the first whole body after bonding is arranged at the rear part of the two-roller bonding device;
a groove folding device for folding the first whole is arranged at the rear of the single-channel oven, and the groove folding device enables the first whole to be matched with the shape of the side ribs and the middle reinforcing ribs at the two sides of the plastic filling layer;
a coil placing frame platform is arranged behind the slot folding device, a third group of coil placing frames are arranged on the coil placing frame platform, the third group of coil placing frames are used for placing continuous glass fiber prepreg tapes, the coil placing frame platform is an iron table, and a space below the iron table is a channel for a first whole after slot folding and a plastic filling layer to be pulled to a subsequent process;
a three-way oven is arranged behind the unreeling frame platform; the three-channel oven is used for heating the continuous glass fiber prepreg tape on the third group of unreeling frames, the first whole after the folding groove and the plastic filling layer coming out of the tractor;
a laminating device is arranged at the rear of the three-channel oven and is used for enabling the continuous glass fiber prepreg tape at the position to be laminated on the rear end face of the plastic filling layer, and the first whole after the groove is folded is laminated with the plastic filling layer from the front end face and is laminated into a second whole;
a cladding mould is arranged at the rear part of the laminating device; a double-screw extruder is arranged beside the coating die, a second hydraulic screen changer is arranged at an outlet of the double-screw extruder, an outlet of the second hydraulic screen changer is connected with the coating die, and the coating die is used as a forming die of a plastic surface layer and also used as a die for coating a third whole;
the cladding mold comprises a mold body, wherein the mold body is provided with a molding cavity and a trapezoid inlet; the second whole enters the forming cavity from the trapezoid inlet, the molten plastic surface layer extruded from the double-screw extruder enters the forming cavity through the runner of the coating die to coat the second whole, and meanwhile, the plastic surface layer is formed through the forming cavity;
a second shaping device is arranged behind the cladding mould, and a second shaping mould is arranged on the second shaping device;
and a cutting machine is arranged behind the second shaping device, and a longitudinal conveying device and a transverse conveying device are respectively arranged behind the cutting machine.
9. A production line for composite hollow cellular-structure panels according to claim 8, wherein: the extrusion die head comprises a die outer frame and a forming insert embedded in the die outer frame, and molten plastic raw materials enter a filling layer forming cavity between the die outer frame and the forming insert through a runner, so that a plastic filling layer is formed;
a blowing hole is formed in each molding insert, the blowing holes are communicated with the molding cavity, and the blowing holes are connected with a blowing system; the blowing system blows out gas into the blowing holes and then blows the molten raw materials to the forming cavity.
10. A production line for composite hollow cellular-structure panels according to claim 8, wherein: the shaping mould and the second shaping mould comprise a split cooling upper mould, a cooling lower mould, a cooling left mould, a cooling right mould and a shaping cavity, wherein the shaping mould and the second shaping mould are respectively provided with an air suction hole, are communicated with the shaping cavity and are connected with a vacuum pump in parallel, the uncooled shaping product is vacuumized and adsorbed, and a waterway is manufactured in the shaping mould and is connected with a cold water machine to cool the uncooled shaping product.
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| CN1242462A (en) * | 1999-08-04 | 2000-01-26 | 武汉工业大学 | Glass fiber reinforced low foaming plastic architectural template and method for mfg. same |
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