CN-116623876-B - FRP reinforcement cage, production equipment and manufacturing method

CN116623876BCN 116623876 BCN116623876 BCN 116623876BCN-116623876-B

Abstract

The application relates to a concrete reinforcement cage, and discloses an FRP reinforcement cage, production equipment and a manufacturing method, wherein the FRP reinforcement cage comprises FRP reinforcement which are mutually connected in a cross way, the FRP reinforcement comprises a plurality of reinforcing fiber layers which are coated by resin, the reinforced fiber layers of different trend at the cross connection point of the FRP rib are staggered layer by layer, and an integrated structure is formed by resin cladding, so that the reinforced fiber reinforced plastic has the advantage of high structural stability. The FRP reinforcement cage production equipment comprises a composite fiber forming device, a fiber bundle conveying device, a movable workbench, a resin impregnating device, a gum dipping fiber output device and a reinforcement cage forming roller, wherein the gum dipping fiber output device comprises an output guide frame and a grouping guide roller, and can be used for grouping and combining different numbers of composite reinforced fiber bundles to form FRP reinforcement layer bundles which are distributed at intervals. The application also discloses a manufacturing method of the FRP reinforcement cage.

Inventors

SHI QIANG
YANG NAN
LI ZHONGJIANG
DAI YUN
TANG XUEHONG
WANG XINWU

Assignees

南京新核复合材料有限公司

Dates

Publication Date: 20260505
Application Date: 20230513

Claims (8)

1. The FRP rib cage comprises FRP ribs (1) which are mutually connected in a cross mode, and is characterized in that the FRP ribs (1) comprise a plurality of reinforced fiber layers (12) which are coated by resin (11), the reinforced fiber layers (12) which are in different directions at the cross connection points of the FRP ribs (1) are staggered layer by layer, and the reinforced fiber layers are coated by the resin (11) to form an integral structure; The FRP reinforcement cage is produced by FRP reinforcement cage production equipment, the FRP reinforcement cage production equipment comprises a composite fiber forming device (2), a fiber bundle conveying device (3), a movable workbench (4), a resin impregnation device (5), a gum dipping fiber output device (6) and reinforcement cage forming rollers (7), the composite fiber forming device (2) can extract a set number of reinforced fibers and mix the reinforced fibers to form a composite reinforced fiber bundle, the fiber bundle conveying device (3) can convey the composite reinforced fiber bundle to the movable workbench (4), the movable workbench (4) is arranged on one side of the reinforcement cage forming rollers (7) and can reciprocate along the axial direction of the reinforcement cage forming rollers (7), the resin impregnation device (5) is arranged on the movable workbench (4) and can impregnate the resin into the composite reinforced fiber bundle, the gum dipping fiber output device (6) is arranged on the movable workbench (4) and is positioned between the resin impregnation device (5) and the reinforcement cage forming rollers (7), the output device (6) is arranged on one side of the guide frame (61) adjacent to the guide frame (61) which is arranged, the output frame (61) is arranged on one side of the guide frame (61), the grouping guide roller (62) is rotatably arranged on the movable workbench (4), a plurality of groups of grouping guide teeth (621) are arranged on the grouping guide roller (62), each group of grouping guide teeth (621) is arranged at different radial positions on the grouping guide roller (62), the grouping guide teeth (621) of different groups are arranged at different axial positions of the grouping guide roller (62) and form different axial offsets in the radial direction, and can be used for grouping and combining different numbers of composite reinforced fiber bundles to form FRP rib bundles distributed at intervals, the rib cage forming roller (7) can rotate at a set speed, and the FRP rib bundles are wound on the rib cage forming roller (7) to form the FRP ribs (1); The resin impregnation device (5) comprises a fiber input mechanism (51), a resin impregnation groove (52), a fiber pressing and impregnating mechanism (53) and a scraping mechanism (54), wherein the fiber input mechanism (51) is arranged at one end of the resin impregnation groove (52), the resin impregnation device comprises an input guide wire plate (511) and a comb-shaped guide wire rod (512), the input guide wire plate (511) is arranged at one side, far away from the resin impregnation groove (52), of the comb-shaped guide wire rod (512), a plurality of guide wire holes for the composite reinforced fiber bundles to pass through are formed in the input guide wire plate (511), a plurality of guide wire grooves for accommodating the composite reinforced fiber bundles are formed in the comb-shaped guide wire rod (512), the guide wire grooves are in one-to-one correspondence with the guide wire holes, the fiber pressing and impregnating mechanism (53) is arranged at the position of the resin impregnation groove (52) and can limit the composite reinforced fiber bundles to pass through the resin impregnation groove (52), and the scraping mechanism (54) is arranged at one end, opposite to the fiber bundles, of the resin impregnation mechanism (52), of the composite reinforced fiber bundles can be scraped.
2. The FRP reinforcement cage of claim 1, wherein the reinforcing fiber layer (12) comprises a plurality of composite reinforcing fiber bundles formed by mixing glass fibers, carbon fibers and polypropylene fibers.
3. The FRP reinforcement cage of claim 2, wherein at least one fiber of said composite reinforcing fiber bundles is subjected to a silane coupling agent impregnation treatment.
4. The FRP reinforcement cage of claim 1, wherein the fiber impregnation mechanism (53) comprises an impregnation mounting frame (531), a lifting adjusting structure (532), a lifting mounting frame (533), a first pressing rod frame (534), a first pressing rod (535), a second pressing rod frame (536), a second pressing rod (537), an adjusting rod (538) and an amplitude adjusting structure (539), the impregnation mounting frame (531) is fixed on both sides of the resin impregnation tank (52) adjacent to the end of the fiber input mechanism (51), the lifting mounting frame (533) is mounted on the impregnation mounting frame (531) through the lifting adjusting structure (532) so that the mounting height of the lifting mounting frame (533) can be adjusted through the lifting adjusting structure (532), the first pressing rod frame (534) and the second pressing rod frame (536) are respectively hinged on the lifting mounting frame (533), one end of the first pressing rod frame (534) and one end of the second pressing rod frame (536) are hinged with the adjusting rod (538), the other end of the first pressing rod frame (534) is connected with the second pressing rod (538) through the lifting adjusting rod (539) fixedly, to be able to adjust the distance between the two.
5. The FRP reinforcement cage of claim 1, wherein the scraping mechanism (54) comprises a scraping mounting frame (541), a scraping bottom plate (542), a scraping rubber strip (543), a rubber pressing roller (544), a first rubber pressing rod (545), a second rubber pressing rod (546), a rubber pressing rod frame (547) and a pressing rod adjusting mechanism (548), the scraping mounting frame (541) is fixed at one end of the resin impregnation tank (52), the scraping bottom plate (542) is fixed at the lower part of the scraping mounting frame (541) and extends obliquely downwards to the resin impregnation tank (52), the scraping rubber strip (543) is mounted above the scraping bottom plate (542) and can abut against the scraping bottom plate (542), the rubber pressing roller (544) is rotatably mounted on the scraping mounting frame (541), the rubber pressing rod frame (547) is mounted on the scraping mounting frame (541) through the pressing rod adjusting mechanism (548), and the first rubber pressing rod (545) and the second rubber pressing rod (546) are mounted on two sides of the rubber pressing roller (547).
6. The FRP reinforcement cage according to claim 1, wherein the composite fiber forming device (2) comprises a plurality of fiber shaft frame units (21), fiber bundle forming rings (22) and fiber bundle guiding-out rods (23), a plurality of fiber shaft frame units (21) are arranged, a plurality of fiber shaft storage positions are arranged on each fiber shaft frame unit (21), a wire guide (211) is arranged above each fiber shaft storage position, the fiber bundle forming rings (22) are arranged at one ends of the plurality of fiber shaft frame units (21), the number of the fiber bundle forming rings (22) corresponds to the number of the fiber shaft frame units (21), and the fiber bundle guiding-out rods (23) are arranged on one side, away from the fiber shaft frame units (21), of the fiber bundle forming rings (22) and comprise upper guiding-out rods (231) and lower guiding-out rods (232) which are arranged in parallel.
7. A method for manufacturing the FRP reinforcement cage according to any one of claims 1 to 6, characterized by comprising the steps of: S10, combining a plurality of reinforced fibers to form a composite reinforced fiber bundle; s20, adding resin into the composite reinforced fiber bundles to form glued reinforced fiber bundles; s30, grouping and combining the glued reinforced fiber bundles to form FRP rib layer bundles; S40, winding FRP rib layer bundles at intervals in a reciprocating manner to form an FRP rib layer formed by crossing the FRP rib layer bundles; s50, repeatedly superposing and winding FRP rib layer bundles on the FRP rib layer to form an FRP rib cage formed by FRP rib cross connection.
8. The method according to claim 7, further comprising the step of impregnating reinforcing fibers with a silane coupling agent S5, wherein in the step of S10, the reinforcing fibers include glass fibers, carbon fibers and polypropylene fibers.

Description

FRP reinforcement cage, production equipment and manufacturing method Technical Field The application relates to a concrete reinforcement cage, in particular to an FRP reinforcement cage. The application also relates to FRP rib cage production equipment and a FRP rib cage manufacturing method. Background In concrete construction engineering, in order to overcome the defect of low tensile strength of concrete, a steel reinforcement cage is usually put into the concrete, and the steel reinforcement cage is utilized to form constraint on the concrete, so that the tensile property of a concrete structure is improved. The reinforcement cage is generally formed by cross connection of reinforcement, has stronger tensile property, can be matched with a concrete structure, and forms a reinforced concrete structure with excellent compressive property and tensile property. The reinforcement cage can effectively improve the mechanical property of the concrete structure, and is widely applied to concrete construction engineering. The use of steel bars in reinforced concrete structures also has several problems such as heavy weight, poor durability in aggressive environments, interference with electromagnetic waves, etc. In particular, reinforced concrete built in a marine environment, the reinforcing steel bars in the reinforced concrete can be corroded in an accelerated manner due to continuous invasion of chloride ions in seawater and sea fog, so that the tensile property of the reinforcing steel bars is reduced, and the durability of construction engineering is seriously affected. Therefore, under a specific use environment, FRP reinforcement cages are usually used in the concrete structure instead of reinforcement cages, so that the FRP reinforcement cages are used for improving the tensile property of the concrete engineering structure, and have the advantages of light dead weight, good durability, no interference to electromagnetic waves and the like. The existing FRP reinforcement cage is manufactured by adding resin glue into reinforced fiber bundles, manufacturing FRP longitudinal ribs and FRP stirrups through a die, and binding and connecting the FRP longitudinal ribs and the FRP stirrups to form the FRP reinforcement cage. Because the FRP longitudinal bars and the FRP stirrups are not bound by using a metal structure generally, the binding process is complex, the binding firmness is poor, and the stability of the FRP reinforcement cage structure is affected. Disclosure of Invention In order to improve stability of an FRP reinforcement cage structure, the application provides an FRP reinforcement cage, production equipment and a manufacturing method. The FRP rib cage provided by the application adopts the following technical scheme: the utility model provides a FRP muscle cage, includes the FRP muscle of mutual cross connection, the FRP muscle includes a plurality of reinforcing fiber layers by the resin cladding, the intersection junction department of FRP muscle is different trend the reinforcing fiber layer is crisscross between the layer by layer to by the resin cladding forms an organic whole structure. By adopting the technical scheme, the reinforced fiber layers in the FRP ribs with different directions are staggered layer by layer to form the connection points among the FRP ribs which are mutually crossed, so that the FRP ribs with different directions at the connection points are connected through the structure, the connection of the FRP ribs by using a specific binding structure or a connection clamp is avoided, the connection procedure is simplified, the accuracy of the connection point position is improved, the resin is utilized to coat the different reinforced fiber layers at the cross connection point of the FRP ribs, the integral structure of the cross connection point of the FRP ribs and the FRP ribs is formed after the resin is solidified, the structural stability of the cross connection point is higher, the deviation of the FRP rib cage connection point formed by the FRP rib binding is avoided, and the deviation of the FRP rib cage connection point in the transportation and use process of the FRP rib cage is avoided. In a specific embodiment, the reinforcing fiber layer includes a plurality of composite reinforcing fiber bundles formed by mixing glass fibers, carbon fibers and polypropylene fibers. By adopting the technical scheme, the high tensile strength and the high corrosion resistance of the glass fiber are utilized to ensure the tensile strength and the corrosion resistance of the composite reinforced fiber bundle, the high tensile strength and the high specific modulus of the carbon fiber are utilized to ensure the tensile strength of the composite reinforced fiber bundle and simultaneously improve the flexibility of the composite reinforced fiber bundle, and the high strength and the high elasticity of the polypropylene fiber are utilized to facilitate the processing and forming of t