CN104339490B - A kind of pultrusion die - Google Patents
A kind of pultrusion die Download PDFInfo
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- CN104339490B CN104339490B CN201410497405.0A CN201410497405A CN104339490B CN 104339490 B CN104339490 B CN 104339490B CN 201410497405 A CN201410497405 A CN 201410497405A CN 104339490 B CN104339490 B CN 104339490B
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- glass fiber
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- regular hexagon
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- 239000004744 fabric Substances 0.000 claims description 93
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 46
- 239000004917 carbon fiber Substances 0.000 claims description 46
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 46
- 239000011152 fibreglass Substances 0.000 claims description 45
- 239000003365 glass fiber Substances 0.000 claims description 44
- 238000010438 heat treatment Methods 0.000 claims description 38
- 229920005989 resin Polymers 0.000 claims description 24
- 239000011347 resin Substances 0.000 claims description 24
- 239000003292 glue Substances 0.000 claims description 16
- 239000002131 composite material Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000000428 dust Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009787 hand lay-up Methods 0.000 description 2
- 238000012946 outsourcing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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- Moulding By Coating Moulds (AREA)
Abstract
A kind of pultrusion die, it includes a preform support frame, one interior mould fixing to be connected with preform support frame, one external mold outside described interior mould, interior mould forms the die cavity identical with electroconductive frp regular hexagon anode tube sectional dimension with external mold, interior mould is provided with a support shaft extended, two end faces of external mold are provided with multiple for placing the deep hole adding heat pipe on each limit of regular hexagon, it is provided with for placing the groove adding heat pipe in the middle part of external mold on orthohexagonal each limit, preform support frame is hollow frame structure, its stem is provided with the bracing frame for fixing described support shaft, be linked in sequence on preform support frame multiple preformed board, slotted eye it is provided with in preformed board.Pultrusion die provided by the present invention, it is possible to produce electroconductive frp regular hexagon anode tube by pultrude process.
Description
Technical Field
The invention relates to a pultrusion die, in particular to a pultrusion die for producing a glass fiber reinforced plastic product, and further provides a conductive glass fiber reinforced plastic regular hexagon anode tube produced by using the pultrusion die.
Background
In a wet-type electric dust collector for removing fine smoke dust, gypsum liquid drops and the like, anode tubes made of conductive glass fiber reinforced plastics are increasingly applied, the regular hexagonal anode tubes are convenient to assemble and large in available dust collection area, so that the anode tubes sold on the market are all in a regular hexagonal structure, but the conventional production mode of manual layering is adopted for the conductive glass fiber reinforced plastics regular hexagonal anode tubes sold on the market, the production efficiency is low, and the anode tubes are manufactured manually, so that the inner surfaces of the anode tubes are difficult to obtain stable surface quality, the manufacturing tolerance is large, and the product quality is difficult to control.
The pultrusion process flow of the glass fiber reinforced plastics is generally as follows: the yarn group is arranged on a creel, and the unwound yarn bundle enters a resin impregnating glue groove to be soaked with resin after passing through a series of guide rollers, a yarn collecting grid plate and a yarn collecting roller. The yarn bundle then passes through a preforming die, which is a guide device configured according to the desired cross-sectional shape of the article. After the excess resin and air bubbles are discharged from the die, the resin enters a forming die, the fiber reinforced material and the resin are formed and solidified in the die, and then the fiber reinforced material and the resin are pulled out by a pulling device and cut into products with required lengths by a cutting device.
Although the pultrusion technology of the glass fiber reinforced plastics is widely applied at present, the existing pultrusion die and the process are mainly directed to the glass fiber reinforced plastics product with a simpler profile, and the products with a closed hollow profile such as the regular hexagon anode tube are difficult to be produced by the pultrusion process by adopting the existing pultrusion die.
In addition, the existing pultrusion technology adopts an outsourcing heating mode, that is, in the heating process, a heating device is tightly attached to an outer die of a pultrusion die for heating, and heat is transferred to an internal cavity through the outer die of the pultrusion die, for example, a heating plate is tightly attached to a steel die used as the outer die, and heat transfer is performed through the steel die, so that most of heat can be dissipated into air, heat loss is large, heating time is long, and for a molded surface such as a regular hexagon anode tube, heating uniformity during molding and curing is difficult to guarantee.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a pultrusion die and a conductive glass fiber reinforced plastic regular hexagon anode tube produced by the same, so as to reduce or avoid the aforementioned problems.
In order to solve the technical problem, the invention provides a pultrusion die which is used for producing a conductive glass fiber reinforced plastic regular hexagon anode tube, wherein the innermost side of the conductive glass fiber reinforced plastic regular hexagon anode tube is a carbon fiber fabric layer and comprises a preforming support frame, an inner die fixedly connected with the preforming support frame, and an outer die surrounding the outer side of the inner die,
the sections of the inner mold and the outer mold are both regular hexagons, a cavity with the same size as the section of the conductive glass fiber reinforced plastic regular hexagon anode tube is formed, the inner mold is provided with an extended support shaft, a plurality of deep holes for placing heating tubes are respectively arranged on each side of the regular hexagons on two end surfaces of the outer mold, a groove for placing heating tubes is respectively arranged on each side of the regular hexagons in the middle of the outer mold, the distance between each deep hole and the inner wall of the outer mold is 10-20mm, the distance between each groove and the inner wall of the outer mold is 10-20mm,
the preforming support frame is of a hollow frame structure, a support frame used for fixing the support shaft is arranged at the head of the preforming support frame, a plurality of preformed plates are sequentially connected to the preforming support frame, and slotted holes are formed in the preformed plates corresponding to the carbon fiber fabric layers.
Preferably, the conductive glass fiber reinforced plastic regular hexagon anode tube comprises a carbon fiber fabric layer without resin glue solution, a glass fiber fabric layer with resin glue solution and a yarn composite layer from inside to outside, and the preformed plate is provided with a slot corresponding to the carbon fiber fabric layer, the glass fiber fabric layer and the yarn composite layer.
Preferably, at least three heating pipes are arranged on each side of the regular hexagon in the middle of the outer die.
Preferably, the outer die comprises a top plate, a bottom plate and two bilaterally symmetrical triangular side plates, the top plate and the bottom plate are respectively provided with three deep holes, the side edge of each triangular side plate is provided with two deep holes, and the diagonal position of each triangular side plate is provided with one deep hole.
The invention also provides a conductive glass fiber reinforced plastic regular hexagon anode tube produced by using the pultrusion die, which sequentially comprises a carbon fiber fabric layer, a glass fiber fabric layer and a yarn composite layer, wherein the carbon fiber fabric layer is bonded by the resin glue solution, the glass fiber fabric layer is soaked by the resin glue solution, and the resin glue solution is not soaked by the carbon fiber fabric layer before the carbon fiber fabric layer enters the cavity formed by the inner die and the outer die for compounding.
Preferably, the carbon fiber fabric layer comprises six carbon fiber fabrics which are as wide as one side of the regular hexagonal tube.
Preferably, an outer glass fiber fabric layer is further arranged outside the yarn composite layer.
Preferably, the glass fiber fabric layer comprises four or six glass fiber fabrics, and the width of each glass fiber fabric is equal to 1-1.5 times of the single-side width of the regular hexagonal tube.
Preferably, the outer glass fiber fabric layer comprises six glass fiber fabrics which are equal to the single side of the regular hexagonal tube in width.
The pultrusion die provided by the invention can be used for producing the conductive glass fiber reinforced plastic regular hexagon anode tube through a pultrusion process. Therefore, the length of the conductive glass fiber reinforced plastic regular hexagon anode tube is not limited by the size of a manual die any more, the product quality of the anode tube can be effectively ensured, the production efficiency is improved, and the production cost is reduced. The invention also provides the conductive glass fiber reinforced plastic regular hexagon anode tube produced by using the pultrusion die.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein,
FIG. 1 is a schematic front view of the structure of a pultrusion die according to an embodiment of the invention;
FIG. 2 is a schematic top view of FIG. 1;
FIG. 3 is a left side schematic view of FIG. 1;
FIG. 4 is a schematic structural view of a portion of the section A-A in FIG. 1;
FIG. 5 is a schematic view of the outer mold of FIG. 1 in the direction B;
FIG. 6 is a schematic perspective view of the pultrusion die shown in FIG. 1;
FIG. 7 is a schematic perspective view of the pultrusion die shown in FIG. 1;
FIG. 8 is a schematic structural view of a conductive fiberglass reinforced plastic regular hexagonal anode tube produced using the pultrusion die shown in FIG. 1;
FIG. 9 is a schematic structural view of a yarn unit of the yarn composite layer of FIG. 8;
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
FIG. 1 is a schematic front view of the structure of a pultrusion die according to an embodiment of the invention; FIG. 2 is a schematic top view of FIG. 1; FIG. 3 is a left side schematic view of FIG. 1; FIG. 4 is a schematic structural view of a portion of the section A-A in FIG. 1; FIG. 5 is a schematic view of the outer mold of FIG. 1 in the direction B; FIG. 6 is a schematic perspective view of the pultrusion die shown in FIG. 1; FIG. 7 is a schematic perspective view of the pultrusion die shown in FIG. 1; fig. 8 is a schematic structural view of a conductive glass fiber reinforced plastic regular hexagonal anode tube produced using the pultrusion die shown in fig. 1. In order to better represent the structure of the conductive glass fiber reinforced plastic regular hexagon anode tube, the structure of each layer is enlarged in fig. 8, and it should be known to those skilled in the art that since the thickness of each layer is very thin, the wall thickness of the whole conductive glass fiber reinforced plastic regular hexagon anode tube is generally 3-4mm, so that each side length of the outer surface of the whole conductive glass fiber reinforced plastic regular hexagon anode tube is equal to each side length of the inner surface.
Referring to fig. 1-8, the present invention provides a pultrusion die for producing a conductive glass fiber reinforced plastic regular hexagon anode tube 1, wherein the innermost side of the conductive glass fiber reinforced plastic regular hexagon anode tube 1 is a carbon fiber fabric layer 2,
which comprises a preformed supporting frame 6, an inner die 7 fixedly connected with the preformed supporting frame 6, an outer die 8 surrounding the outer side of the inner die 7,
the sections of the inner die 7 and the outer die 8 are both regular hexagons, a die cavity with the same size as the section of the conductive glass fiber reinforced plastic regular hexagon anode tube 1 is formed, the inner die 7 is provided with an extended support shaft 71, as shown in fig. 4 and 5, in fig. 4, in order to show the structure of the groove 82 on the outer die 8 more clearly, structures such as a cover plate for fixing the heating pipe 821 are omitted; a plurality of deep holes 81 for placing heating pipes are respectively arranged on each edge of a regular hexagon on two end surfaces of the outer die 8, a groove 82 for placing heating pipes 821 is respectively arranged on each edge of the regular hexagon in the middle of the outer die 8, the distance d1 between the deep holes 81 and the inner wall of the outer die is 10-20mm, the distance d2 between the groove 82 and the inner wall of the outer die is 10-20mm,
the preforming support frame 6 is of a hollow frame structure, a support frame 61 used for fixing the support shaft is arranged at the head part of the preforming support frame 6, a plurality of preforming plates 62 are sequentially connected to the preforming support frame 6, and slotted holes are formed in the preforming plates 62 corresponding to the carbon fiber fabric layer 2.
As mentioned in the background, the existing pultrusion die is difficult to form a corresponding cavity for a product with a closed hollow profile such as a regular hexagonal anode tube. In addition, the outsourcing heating mode adopted by the existing pultrusion technology is difficult to ensure the heating uniformity during molding and curing for the molded surface of the regular hexagon anode tube.
The pultrusion die provided by the invention mainly aims to solve the problems of the existing pultrusion die in the pre-forming and forming stages, the pultrusion die provided by the invention can be placed on a workbench (not shown in the figure), and the supporting shaft 71 is fixed by arranging the supporting frame 61 on the pre-forming supporting frame 6, so that the position of the inner die 7 can be adjusted, and the size of a cavity formed by the inner die 7 and the outer die 8 can be matched with the size of the conductive glass fiber reinforced plastic regular hexagon anode tube 1. Of course, the outer mold 8 may be provided with an adjusting rod (not shown) or an adjusting pad (not shown) connected to the table for adjusting the height thereof.
The innermost side of the conductive glass fiber reinforced plastic regular hexagon anode tube 1 is the carbon fiber fabric layer 2, so that the inner wall of the conductive glass fiber reinforced plastic regular hexagon anode tube 1 has good conductivity, and certainly, in order to enable the conductive glass fiber reinforced plastic regular hexagon anode tube 1 to have enough strength so as to be convenient for application, the conductive glass fiber reinforced plastic regular hexagon anode tube 1 can be additionally provided with other materials outside the carbon fiber fabric layer 2 to form a structural layer, for example, the conductive glass fiber reinforced plastic regular hexagon anode tube 1 can comprise the carbon fiber fabric layer 2, the glass fiber fabric layer 3 and the yarn composite layer 4 from inside to outside.
As shown in fig. 1-7, the preform support frame 6 is a hollow frame structure, which facilitates the unobstructed entry of carbon fiber fabric, glass fiber fabric and yarns into the cavity formed by the inner mold 7 and the outer mold 8 through the preform plate 62. In addition, the support frame 61 arranged at the head of the preforming support frame 6 is beneficial to avoiding the obstruction of the traction of the carbon fiber fabric, the glass fiber fabric and the yarn. The support frame 61 may be a cross structure, which has sufficient strength to fix the inner mold.
As indicated by the background art, the existing pultrusion technology adopts an external heating mode, that is, in the heating process, a heating device is tightly attached to an external mold of a pultrusion mold for heating, and the heat is transferred to an internal cavity through the external mold of the pultrusion mold, for example, a heating plate is tightly attached to a steel mold used as the external mold, and the heat is transferred through the steel mold, so that most of the heat is dissipated into the air, the heat loss is large, the heating time is long, and the heating uniformity during molding and curing is difficult to ensure for the molded surface such as a regular hexagonal anode tube.
In the invention, the outer die is used for embedded heating, deep holes 81 drilled at two end temperature areas are used for inserting electric heating pipes in the area of the outer die 8 close to the inner surface, and grooves 82 are processed in the middle temperature area for embedding the heating pipes 821, so that the heating time can be shortened to be within 1 hour, and the heating pipes can be close to the product in the largest possible short distance, so that the curing is stable in the production process of the regular hexagon anode pipe, the production efficiency is improved, and the production cost is controlled.
The length of the deep hole 81 and the groove 82 can be close to 1/3 of the length of the outer die 8, so that the heating pipe arranged on the whole outer die 8 can uniformly heat the cavity formed by the inner die 7 and the outer die 8.
The grooves 82 may be large grooves 82 formed on the outer surface of the outer mold 8 as shown in fig. 4, and then the heating pipes 821 are fixed by using other fixtures (not shown), or small grooves 82 may be milled for each heating pipe 821 to accommodate only a single heating pipe 821.
Referring to fig. 3-5, the preformed plates 62 are respectively provided with slots 621, 622, 623 corresponding to the carbon fiber fabric layer 2, the glass fiber fabric layer 3 and the yarn composite layer 4, it should be understood by those skilled in the art that, in order to fit the materials for forming the carbon fiber fabric layer 2, the glass fiber fabric layer 3 and the yarn composite layer 4 together before entering the cavity formed by the inner mold 7 and the outer mold 8, the slots 621, 622, 623 of the plurality of preformed plates 62 arranged on the preformed support frame 6 are gradually fitted, referring to fig. 1-3, 6, 7, in the present embodiment, four preformed plates 62 are provided, a first preformed plate 62 is provided on the head of the preformed support frame 6, and a second preformed plate 62 is provided at equal intervals on the middle of the preformed support frame 6, And a fourth preformed plate 62 is arranged at the tail part of the preformed support frame 6 close to the outer die 8 of the third two preformed plates 62, wherein the slotted holes 621, 622 and 623 are combined into a slotted hole with the size consistent with the size of the cavity formed by the inner die 7 and the outer die 8 on the fourth preformed plate 62. Thus, by guiding and positioning the four pre-formed plates 62, the materials for forming the carbon fiber fabric layer 2, the glass fiber fabric layer 3 and the yarn composite layer 4 can be tightly attached together before entering the cavity formed by the inner mold 7 and the outer mold 8.
The biggest difference between the present invention and the prior art is that in order to ensure the conductivity of the inner surface of the conductive glass fiber reinforced plastic regular hexagonal anode tube 1 formed by the carbon fiber fabric layer 2, the carbon fiber fabric used for forming the carbon fiber fabric layer 2 cannot be dipped in glue during the pultrusion process, but is heated in a mold, and is tightly compounded by using a part of resin glue solution attached to the glass fiber fabric layer 3. This means that the inner surface of the carbon fiber fabric layer 2 is not provided with the resin glue solution, and the thickness of the resin connecting layer between the carbon fiber fabric layer 2 and the glass fiber fabric layer 3 is also smaller than that of the resin connecting layer formed by hand lay-up, for example, the thickness of the resin connecting layer formed by the traditional hand lay-up method is generally 0.3-0.8mm, while the thickness of the resin connecting layer between the carbon fiber fabric layer 2 and the glass fiber fabric layer 3 in the present invention can be kept smaller than 0.3 mm. In addition, as the inner surface of the carbon fiber fabric layer 2 is not provided with resin glue, the conductivity of the inner surface of the conductive glass fiber reinforced plastic regular hexagonal anode tube 1 can be well ensured.
In a preferred embodiment, at least three heating pipes are arranged in the middle of the outer die 8 on each side of a regular hexagon, as shown in fig. 4, that is, when the grooves 82 are large grooves 82 formed in the outer surface of the outer die 8 as shown in fig. 4, three heating pipes 821 are arranged in each groove 82. The three heating pipes 821 can be uniformly arranged, so that each side of the middle part of the outer die 8 can be uniformly heated.
Referring to fig. 5-7, in a preferred embodiment, the outer mold 8 comprises a top plate 83, a bottom plate 84 and two triangular side plates 85 which are symmetrical left and right, three deep holes 81 are arranged on each of the top plate 83 and the bottom plate 84, two deep holes 81 are arranged on the side edge of each triangular side plate 85, and one deep hole 81 is arranged at the diagonal position.
The outer die 8 comprises a top plate 83, a bottom plate 84 and two triangular side plates 85 which are symmetrical left and right, so that the outer die 8 can be easily manufactured, and the triangular side plates 85 are provided with one deep hole 81 at the diagonal positions, so that a cavity formed by the outer die 7 and the outer die 8 can be better heated at the diagonal positions. The inventor finds out through practice that three deep holes 81 are formed in each of the top plate 83 and the bottom plate 84, two deep holes 81 are formed in the side edge of the triangular side plate 85, and heating pipes are placed in the deep holes 81, so that heating of a cavity formed by the outer die 7 and the outer die 8 can be well guaranteed.
Referring to fig. 8, the invention further provides a conductive glass fiber reinforced plastic regular hexagonal anode tube produced by using the pultrusion die, which sequentially comprises a carbon fiber fabric layer 2 bonded by a resin glue solution, a glass fiber fabric layer 3 soaked with the resin glue solution and a yarn composite layer 4 from inside to outside, wherein the carbon fiber fabric layer 2 is not soaked with the resin glue solution before entering a cavity formed by the inner die 7 and the outer die 8 for compounding.
The resin glue solution can be selected from m-benzene type or p-benzene type or bisphenol A type or vinyl type unsaturated polyester resin.
The carbon fiber fabric layer 2 can reduce the resistivity of the inner surface conducting layer, and can be formed by adopting a single carbon fiber fabric or formed by combining a plurality of carbon fiber fabrics, for example, the carbon fiber fabric layer 2 can be formed by splicing two carbon fiber fabrics into a regular hexagon or four carbon fiber fabrics into a regular hexagon according to the cross-sectional size of the regular hexagonal tube 1.
In a preferred embodiment, the carbon fiber fabric layer 2 includes six carbon fiber fabrics which are equal in width to the single side of the regular hexagonal tube 1, that is, the carbon fiber fabrics can be divided into six pieces according to the six sides of the regular hexagonal tube 1 and enter a pultrusion die, so that the full-width arrangement of the carbon fiber fabrics on the dust collection surface (i.e., the six sides) of the regular hexagonal tube 1 can be ensured, and the dust collection surface is not lost due to the carbon fiber fabrics, so that the dust collection area is reduced, and the dust collection effect is not affected.
The carbon fiber fabric layer 2 can be made of unidirectional carbon fiber fabric, so that the longitudinal tensile strength of the regular hexagonal tube 1 can be increased.
In a preferred embodiment, the yarn composite layer 4 is provided with an outer glass fiber fabric layer 5, so that the transverse strength of the regular hexagonal tube 1 can be increased by forming a complementary transverse strength with the glass fiber fabric layer 3 of the inner layer.
The glass fiber fabric layer 3 is used for providing rigidity and strength support for the conductive glass fiber reinforced plastic regular hexagon anode tube, and can be formed by adopting a single glass fiber fabric or formed by combining a plurality of glass fiber fabrics, for example, the glass fiber fabric layer 3 can be formed by splicing two glass fiber fabrics into a regular hexagon or splicing three glass fiber fabrics into a regular hexagon according to the cross section size of the regular hexagon tube 1.
In a preferred embodiment, the glass fiber fabric layer 3 comprises four or six glass fiber fabrics 31, and the width of each glass fiber fabric 31 is equal to 1-1.5 times of the single-side width of the regular hexagonal tube.
When the glass fiber fabric layer 3 is formed by splicing four pieces of glass fiber fabrics 31, the joint of two adjacent pieces of glass fiber fabrics 31 can be selected to avoid the corner of the regular hexagonal tube 1.
Four sheets of fiberglass fabric 31 may be combined into a hexagonal surface. The width of each glass fiber fabric 31 is equal to 1.5 times of the single-side width of the regular hexagonal tube 1, so that the width of each glass fiber fabric 31 can cover 1.5 sides of the regular hexagonal tube 1, the hexagonal corners of the regular hexagonal tube 1 can be wrapped by transverse fibers, and the strength of the corners of the regular hexagonal tube 1 can be further guaranteed.
When the glass fiber fabric layer 3 is formed by splicing six glass fiber fabrics 31, the joint of two adjacent glass fiber fabrics 31 can also avoid the corner of the regular hexagonal tube 1. Therefore, the hexagonal corners of the regular hexagonal tube 1 can be wrapped by the transverse fibers, and the strength of the corners of the regular hexagonal tube 1 can be further guaranteed.
FIG. 9 is a schematic view of the construction of the yarn units of the yarn composite layer of FIG. 8. Referring to fig. 7, in a preferred embodiment, the yarn composite layer 4 includes a plurality of yarn units 41 sequentially juxtaposed on each side of the regular hexagonal pipe 1, and each of the yarn units 41 includes one 9600Tex yarn 411, one 4800Tex yarn 412, and two 9600Tex yarns 411 sequentially juxtaposed. The yarn arrangement mode of the yarn unit 41 can ensure that each strand of yarn is not excessively dense to cause insufficient wettability, and the product quality produced by the pultrusion process is influenced.
In a preferred embodiment, the outer fiberglass fabric layer 5 comprises six pieces of fiberglass fabric 51 of equal width to one side of the hexagonal tube 1. Six pieces of glass fiber fabrics 51 with the same width as the single side of the regular hexagonal tube 1 are adopted outside the regular hexagonal tube 1, and one piece of glass fiber fabric 51 is correspondingly used on the single side of each regular hexagonal tube 1, so that the transverse strength of the regular hexagonal tube 1 can be complemented with that of the glass fiber fabric layer 3 on the inner layer in a complementary manner, and the transverse strength of the regular hexagonal tube 1 is increased.
The pultrusion die provided by the invention can be used for producing the conductive glass fiber reinforced plastic regular hexagon anode tube through a pultrusion process. Therefore, the length of the conductive glass fiber reinforced plastic regular hexagon anode tube is not limited by the size of a manual die any more, the product quality of the anode tube can be effectively ensured, the production efficiency is improved, and the production cost is reduced. The invention also provides the conductive glass fiber reinforced plastic regular hexagon anode tube produced by using the pultrusion die.
It should be appreciated by those of skill in the art that while the present invention has been described in terms of several embodiments, not every embodiment includes only a single embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including technical equivalents which are related to the embodiments and which are combined with each other to illustrate the scope of the present invention.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent alterations, modifications and combinations can be made by those skilled in the art without departing from the spirit and principles of the invention.
Claims (4)
1. A pultrusion die is characterized in that the pultrusion die is used for producing a conductive glass fiber reinforced plastic regular hexagon anode tube, the innermost side of the conductive glass fiber reinforced plastic regular hexagon anode tube is a carbon fiber fabric layer, the conductive glass fiber reinforced plastic regular hexagon anode tube comprises a preforming support frame, an inner die fixedly connected with the preforming support frame, an outer die surrounding the outer side of the inner die,
the sections of the inner mold and the outer mold are both regular hexagons, a cavity with the same size as the section of the conductive glass fiber reinforced plastic regular hexagon anode tube is formed, the inner mold is provided with an extended support shaft, a plurality of deep holes for placing heating tubes are respectively arranged on each side of the regular hexagons on two end surfaces of the outer mold, a groove for placing heating tubes is respectively arranged on each side of the regular hexagons in the middle of the outer mold, the distance between each deep hole and the inner wall of the outer mold is 10-20mm, the distance between each groove and the inner wall of the outer mold is 10-20mm,
the preforming support frame is of a hollow frame structure, a support frame used for fixing the support shaft is arranged at the head of the preforming support frame, a plurality of preformed plates are sequentially connected to the preforming support frame, and slotted holes are formed in the preformed plates corresponding to the carbon fiber fabric layers.
2. The pultrusion die as claimed in claim 1, wherein the conductive glass fiber reinforced plastic regular hexagonal anode tube includes a carbon fiber fabric layer without resin glue solution, a glass fiber fabric layer with resin glue solution and a yarn composite layer from inside to outside, and the preformed plate is provided with a slot corresponding to the carbon fiber fabric layer, the glass fiber fabric layer and the yarn composite layer.
3. The pultrusion die as claimed in claim 1, characterized in that the outer die middle portion is provided with at least three heating pipes on each side of a regular hexagon.
4. The pultrusion die as claimed in claim 1, wherein the outer die comprises a top plate, a bottom plate and two triangular side plates which are bilaterally symmetrical, three deep holes are arranged on each of the top plate and the bottom plate, the triangular side plates are provided with two deep holes on the side edges and one deep hole at the opposite corner.
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| CN201410497405.0A CN104339490B (en) | 2014-09-25 | 2014-09-25 | A kind of pultrusion die |
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| CN201410497405.0A CN104339490B (en) | 2014-09-25 | 2014-09-25 | A kind of pultrusion die |
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| CN104339490B true CN104339490B (en) | 2016-11-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106079484A (en) * | 2016-08-17 | 2016-11-09 | 江苏恒神股份有限公司 | Novel pultrusion preforming positioner |
| CN107877889A (en) * | 2016-09-30 | 2018-04-06 | 江苏永纪化工设备有限公司 | Dragging-squeezing machine for fiberglass formation system |
| CN107877890A (en) * | 2016-09-30 | 2018-04-06 | 江苏永纪化工设备有限公司 | A kind of dragging-squeezing machine for fiberglass pre-shaping device |
| CN106739013B (en) * | 2016-11-30 | 2019-04-16 | 中国科学院宁波材料技术与工程研究所 | A kind of sandwich guiding pulltrusion device of odd-shaped center fibre |
| CN107901454A (en) * | 2017-12-28 | 2018-04-13 | 振石集团华美新材料有限公司 | A kind of pre-forming device and its preformation method for multilayer fabric pultrude process |
| CN108127941B (en) * | 2018-01-10 | 2021-01-08 | 江苏恒神股份有限公司 | Polygon multilayer fabric composite material tubular product preforming mould |
| CN110449266A (en) * | 2019-08-16 | 2019-11-15 | 临沂正信环保科技有限公司 | A kind of conductive fire-retardant anode tube of novel polypropylene |
| CN114770973B (en) * | 2022-03-15 | 2024-08-30 | 东华大学 | Multi-sided composite material barrel bending and twisting resistant composite forming method with long inner ribs and production line |
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| CN203580082U (en) * | 2013-12-16 | 2014-05-07 | 李爱云 | Extrusion mold for producing conductive glass steel pipe |
| CN203598942U (en) * | 2013-12-16 | 2014-05-21 | 李爱云 | Hexagon-shaped conductive glass reinforced plastic pipe |
| CN203695221U (en) * | 2014-02-20 | 2014-07-09 | 北京科利洁环境科技有限公司 | Wet type electric deduster anode barrel |
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| CN2376335Y (en) * | 1999-05-12 | 2000-05-03 | 青岛化工环保装备制造有限公司 | Glass fibre reinforced plastics anode tube for electric demister |
| MX2010014567A (en) * | 2008-06-27 | 2011-03-25 | Union Caribe Chemicals & Plastics Technology Llc | Pultrusion process for the manufacture of fiber reinforced composites. |
| CN103567070B (en) * | 2012-10-12 | 2016-06-15 | 原皓 | A kind of device has the wet scrubber of corrosion-resistant dust collector pole |
| CN204134744U (en) * | 2014-09-25 | 2015-02-04 | 李爱云 | A kind of electroconductive frp regular hexagon anode tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203580082U (en) * | 2013-12-16 | 2014-05-07 | 李爱云 | Extrusion mold for producing conductive glass steel pipe |
| CN203598942U (en) * | 2013-12-16 | 2014-05-21 | 李爱云 | Hexagon-shaped conductive glass reinforced plastic pipe |
| CN203695221U (en) * | 2014-02-20 | 2014-07-09 | 北京科利洁环境科技有限公司 | Wet type electric deduster anode barrel |
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