CN213891364U - Preparation device of steel-continuous fiber composite bar - Google Patents
Preparation device of steel-continuous fiber composite bar Download PDFInfo
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- CN213891364U CN213891364U CN202022296854.2U CN202022296854U CN213891364U CN 213891364 U CN213891364 U CN 213891364U CN 202022296854 U CN202022296854 U CN 202022296854U CN 213891364 U CN213891364 U CN 213891364U
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Abstract
The utility model discloses a preparation facilities of compound muscle of steel-continuous fibers, include: the inner core steel bar surface polishing device is used for polishing the surface of the inner core steel bar; the casting mould is positioned at the rear end of the inner core steel bar surface polishing device and used for casting the chopped fiber resin layer on the surface of the inner core steel bar; the casting mould comprises a mould cavity, a material cavity and a material conveying channel communicated with the mould cavity and the material cavity; the material cavity is filled with chopped fiber resin; the die cavity is formed by a channel positioned in the sleeve, and the inner core steel bar just passes through the channel; the first curing device is positioned at the rear end of the casting mould and is used for curing the chopped fiber resin layer cast on the surface of the inner core steel bar; a continuous fiber winding device; the continuous fiber layer is arranged at the rear end of the curing device and used for winding the continuous fiber layer on the surface of the core steel bar cured with the chopped fiber resin layer. The utility model discloses contain the casting mold among the production facility, accessible casting mold wraps up in on the inner core reinforcing bar and covers the chopped strand layer to improve the continuity of follow-up continuous fibers's coiling.
Description
Technical Field
The utility model belongs to the composite material field, concretely relates to steel-continuous fibers composite reinforcement industrial preparation facilities.
Background
The steel bar is the reinforcing material mainly used in the reinforced concrete structure, but because the characteristic of concrete crack work, the steel bar is easy to be corroded, influences the bearing capacity of structure. Fiber Reinforced Polymer/Plastic (FRP) has the advantages of light weight, high strength, fatigue resistance, corrosion resistance and the like, can reasonably replace steel, and has the defects of high brittleness and high price. Therefore, the scholars at home and abroad propose to obtain a mixed FRP Bar with excellent comprehensive performance and low price by using different mixed fibers or wrapping fibers outside the Steel Bar, wherein the mixed FRP Bar is typically a Steel-continuous fiber reinforced Composite Bar (SFCB).
The SFCB is a composite bar obtained by compounding continuous fibers and resin on the outside of an inner core steel bar and curing the same. The existing preparation method of the SFCB comprises the following steps: the inner core steel bar is polished and cleaned, the inner core thread steel bar is wound by continuous fiber roving bundles annularly to fill rib gaps, the continuous fiber bundles are uniformly distributed around the inner core steel bar by utilizing a creel or a weaving device, resin is impregnated, rib is wound on the surface of the composite bar by utilizing a plastic tape, and the composite bar is cured, molded and cut to the required length. However, in the above SFCB production method, the fibers are wound between the ribs of the core reinforcement so that the continuity of the interface between the steel and the continuous fibers is difficult to ensure.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a preparation device of steel-continuous fiber composite bar with good interface continuity between steel-continuous fiber aiming at the defects of the prior art.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a preparation device of a steel-continuous fiber composite bar is characterized by comprising the following components:
the inner core steel bar surface polishing device is used for polishing the surface of the inner core steel bar;
the casting mould is positioned at the rear end of the inner core steel bar surface polishing device and used for casting the chopped fiber resin layer on the surface of the inner core steel bar; the casting mould comprises a mould cavity, a material cavity and a material conveying channel communicated with the mould cavity and the material cavity; the material cavity is filled with chopped fiber resin; the die cavity is formed by a channel positioned in the sleeve, and the inner core steel bar just passes through the channel;
the first curing device is positioned at the rear end of the casting mold and is used for curing the chopped fiber resin layer cast on the surface of the inner core steel bar
A continuous fiber winding device; the continuous fiber layer is arranged at the rear end of the curing device and used for winding the continuous fiber layer on the surface of the core steel bar cured with the chopped fiber resin layer.
The continuous fiber winding device comprises a yarn arranging device, a glue dipping tank, a pultrusion device, a winding device, a second curing device and a traction device which are sequentially arranged; the pultrusion device is used for uniformly compounding continuous fibers soaked with resin outside the inner core steel bar through the creel to obtain a composite bar; the winding device forms ribs on the surface of the composite rib; the second curing device is used for curing the ribbed composite bar.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses contain the casting mold among the production facility, accessible casting mold wraps up in on the inner core reinforcing bar and covers the chopped strand layer to improve the continuity of follow-up continuous fibers's coiling.
(2) The utility model utilizes the mould to fill resin in the rib gaps of the inner core steel bars, thereby ensuring the effective bonding of the longitudinal fibers and the inner core steel bars; meanwhile, compared with a method for winding fiber roving, the method for injecting the resin is simpler and has lower cost, and is beneficial to industrial production of the composite bar.
Drawings
FIG. 1 is a schematic structural view of a manufacturing apparatus of the present invention;
FIG. 2 is a schematic structural view of a casting mold;
FIG. 3 is a schematic view of a casting state of the casting mold;
wherein: 1-a steel bar polishing device; 2-a soaking device; 3-chopped strand resin; 4-casting the mould; 41-material cavity; 42-a mold cavity; 43-a material conveying channel; 5-chopped strand resin injection port; 6-a first curing device; 7-a creel; 8-a creel device; 9-a glue dipping tank; 10-a pultrusion device; 11-a winding device; 12-a second curing device; 13-a traction device; 14-SFCB rib cutting means; a-initial inner core steel bars; b, polishing and cleaning the inner core steel bar; c, treating the surface of the inner core steel bar by using a silane coupling agent; d, filling the inner core steel bars with the chopped fibers; E-SFCB ribs.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
as shown in fig. 1, the device for manufacturing steel-continuous fiber composite bars of the present invention comprises:
reinforcing bar grinding device 1 polishes the surface of inner core reinforcing bar.
The soaking device 2 is internally provided with a surface treating agent, wherein the surface treating agent can be a steel bar surface cleaning and silane coupling agent alcoholic solution; the soaking device 2 adopts the surface treating agent to soak the grinded and cleaned inner core steel bar for 3-5 minutes, and the inner core steel bar is dried in air at room temperature.
And the casting mold 4 is used for casting the chopped fiber resin layer on the surface of the inner core steel bar.
And the first curing device 6 is used for curing the resin of the inner core steel bar filled with the chopped fiber resin for 3-5 minutes at the temperature of about 40 ℃.
A creel 7 on which the continuous fibers are placed.
Two yarn ejectors 8 are arranged at the front end and the rear end of the glue dipping tank 9.
And a glue dipping tank 9, wherein resin is placed in the glue dipping tank 9, and the continuous fibers passing through the yarn discharger 8 enter the glue dipping tank for glue dipping.
And the pultrusion device 10 is used for uniformly compounding the continuous fibers soaked with the resin outside the inner core steel bar through the creel 8 to obtain the composite bar.
And the winding device 11 winds the composite rib circumferentially at the angle and traction force required by the composite rib by using the plastic tape coated with the release agent in advance when the resin on the outer surface of the composite rib is not cured, and forms rib grains on the surface of the composite rib after the plastic tape is directly removed after the resin is cured. The winding angle of the plastic belt in the winding device is determined according to the design angle of the transverse rib and the axis of the composite rib, and is generally not less than 45 degrees, and the width of the plastic belt is consistent with the design rib width of the composite rib. The height of the composite rib can be realized by changing the traction force of a plastic strip winding device in the winding device, but the traction force of the winding device is not more than 20% of the tensile strength of the plastic strip.
And a second curing device 12 for curing the ribbed composite bars.
And the traction device 13 adopts a tractor or a pair of pinch rollers to convey the steel bars.
The structure of the casting mold is shown in figure 2 and comprises a mold cavity, a material cavity and a material conveying channel communicated with the mold cavity and the material cavity; the material cavity is filled with chopped fiber resin; the die cavity is formed by a channel positioned in the sleeve, and the inner core steel bar just passes through the channel; the inner diameter of the die cavity is the same as the diameter of the surface-treated inner core steel bar, resin is injected into the channel of the die through the chopped fiber resin injection port, and the chopped fiber resin is used for filling rib gaps of the inner core steel bar.
The SFCB rib cutting device 14 cuts the SFCB rib by a predetermined length.
Claims (4)
1. A preparation device of a steel-continuous fiber composite bar is characterized by comprising the following components:
the inner core steel bar surface polishing device is used for polishing the surface of the inner core steel bar;
the casting mould is positioned at the rear end of the inner core steel bar surface polishing device and used for casting the chopped fiber resin layer on the surface of the inner core steel bar; the casting mould comprises a mould cavity, a material cavity and a material conveying channel communicated with the mould cavity and the material cavity; the material cavity is filled with chopped fiber resin; the die cavity is formed by a channel positioned in the sleeve, and the inner core steel bar just passes through the channel;
the first curing device is positioned at the rear end of the casting mould and is used for curing the chopped fiber resin layer cast on the surface of the inner core steel bar;
a continuous fiber winding device; the continuous fiber layer is arranged at the rear end of the curing device and used for winding the continuous fiber layer on the surface of the core steel bar cured with the chopped fiber resin layer.
2. The preparation device of claim 1, wherein the continuous fiber winding device comprises a yarn arranger, a glue dipping tank, a pultrusion device, a second curing device and a traction device which are arranged in sequence; the pultrusion device is used for uniformly compounding continuous fibers soaked with resin outside the inner core steel bar through the creel to obtain a composite bar; the second curing device is used for curing the ribbed composite bar.
3. The manufacturing apparatus of claim 2, wherein the continuous fiber winding apparatus further comprises a winding apparatus disposed between the pultrusion apparatus and the second curing apparatus, the winding apparatus forming ribs on the surface of the composite bar.
4. The manufacturing apparatus as set forth in claim 2, wherein a soaking device is further provided between the core-reinforcing-bar surface grinding device and the casting mold, and a surface treatment agent for surface-treating the surface of the core-reinforcing bar being ground is placed in the soaking device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022296854.2U CN213891364U (en) | 2020-10-15 | 2020-10-15 | Preparation device of steel-continuous fiber composite bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022296854.2U CN213891364U (en) | 2020-10-15 | 2020-10-15 | Preparation device of steel-continuous fiber composite bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213891364U true CN213891364U (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022296854.2U Active CN213891364U (en) | 2020-10-15 | 2020-10-15 | Preparation device of steel-continuous fiber composite bar |
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| Country | Link |
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| CN (1) | CN213891364U (en) |
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- 2020-10-15 CN CN202022296854.2U patent/CN213891364U/en active Active
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